{"id":139,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/hunting-tooth-frequency\/"},"modified":"2026-07-02T18:32:53","modified_gmt":"2026-07-02T18:32:53","slug":"hunting-tooth-frequency","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/ro\/glossary\/hunting-tooth-frequency\/","title":{"rendered":"Ce este frecven\u021ba din\u021bilor de v\u00e2n\u0103toare? Repetarea modelului de angrenaj"},"content":{"rendered":"<h1>\u00cen\u021belegerea frecven\u021bei din\u021bilor de v\u00e2n\u0103toare<\/h1>\n\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kit complet \u2014 echilibrator portabil \u0219i analizor de vibra\u021bii\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,975.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/139?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/139?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Portable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Prim-plan senzor de vibra\u021bii Balanset-1A\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">Senzor de vibra\u021bii<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>90.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/139?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/139?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Vibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201eVibration sensor\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Senzor optic (tahometru cu laser)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">Senzor optic (tahometru cu laser)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>124.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/139?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/139?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Optical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201eOptical Sensor (Laser Tachometer)\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Kit de echilibrare a rotorului Vibromera: geant\u0103 de transport, condi\u021bioner de semnal multicanal, analizor portabil, baz\u0103 magnetic\u0103, senzori de vibra\u021bii \u0219i cabluri spiralate.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>6,803.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/139?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/139?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Balanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201eBalanset-4\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic Insize-60-kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Baza magnetic\u0103.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic Insize-60-kgf\">Stand magnetic Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>46.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/139?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/139?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Magnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201eMagnetic Stand Insize-60-kgf\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Band\u0103 reflectorizant\u0103\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">Band\u0103 reflectorizant\u0103<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>10.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/139?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/139?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Reflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201eReflective tape\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Con\u021binutul kitului Balanset-1A cu unitate de interfa\u021b\u0103, senzori, tahometru \u0219i accesorii\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; OEM\">Echilibrator dinamic \"Balanset-1A\" OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/glossary\/139?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/glossary\/139?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Dynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<p><strong>Frecven\u021ba din\u021bilor de v\u00e2n\u0103toare<\/strong> (HTF \u2014 denumit\u0103 \u0219i frecven\u021ba fazei de asamblare sau frecven\u021ba celui mai mare divizor comun) este o frecven\u021b\u0103 joas\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration\/\">vibra\u021bii<\/a> componenta dintr-o pereche de ro\u021bi din\u021bate care reprezint\u0103 viteza cu care <em>acelea\u015fi<\/em> un dinte individual al pinionului revine \u00een contact cu acela\u0219i dinte individual al ro\u021bii din\u021bate. Este determinat de cel mai mic multiplu comun (LCM) al celor dou\u0103 numere de din\u021bi \u0219i este \u00een mod normal o frecven\u021b\u0103 foarte joas\u0103 \u2014 mult sub viteza arborelui \u2014 care apare ca o modula\u021bie lent\u0103, periodic\u0103, a amplitudinii <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/gear-mesh-frequency\/\">frecven\u021ba de angrenare (GMF)<\/a> \u0219i a sa <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/sidebands\/\">benzi laterale<\/a>.<\/p>\n<p>Frecven\u021ba HTF este important\u0103 din punct de vedere diagnostic, deoarece vibra\u021biile transmise la aceast\u0103 frecven\u021b\u0103 indic\u0103 probleme cu <em>din\u021bii individuali specifici<\/em> \u2014 un dinte fisurat, o ciobitur\u0103 localizat\u0103 sau o montare excentric\u0103 \u2014 mai degrab\u0103 dec\u00e2t de starea general\u0103 a setului de angrenaje. Prin urmare, identificarea benzilor laterale HTF ajut\u0103 un analist s\u0103 determine cu precizie care angrenaj \u0219i chiar care dinte este sursa unei defec\u021biuni, f\u0103c\u00e2nd din aceasta unul dintre cele mai precise instrumente din setul mai larg de <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/gear-defects\/\">defect de angrenaj<\/a> diagnostic.<\/p>\n<h2>1. Defini\u021bie \u0219i semnifica\u021bie fizic\u0103<\/h2>\n<p>C\u00e2nd dou\u0103 ro\u021bi din\u021bate func\u021bioneaz\u0103 \u00eempreun\u0103, un dinte al pinionului se angreneaz\u0103 cu o succesiune de din\u021bi ai ro\u021bii din\u021bate, unul dup\u0103 altul, rota\u021bie dup\u0103 rota\u021bie. Dac\u0103 se \u00eentoarce vreodat\u0103 la primul dinte al ro\u021bii din\u021bate cu care a intrat \u00een contact \u2014 \u0219i c\u00e2t de repede \u2014 depinde de raportul aritmetic dintre num\u0103rul de din\u021bi al celor dou\u0103 ro\u021bi. Frecven\u021ba de v\u00e2n\u0103toare a din\u021bilor (HTF) reprezint\u0103 pur \u0219i simplu ritmul acestei reveniri. O HTF sc\u0103zut\u0103 \u00eenseamn\u0103 c\u0103 o anumit\u0103 pereche de din\u021bi se \u00eent\u00e2lne\u0219te doar rar; o HTF ridicat\u0103 \u00eenseamn\u0103 c\u0103 acelea\u0219i c\u00e2teva perechi se \u00eent\u00e2lnesc \u00een mod repetat.<\/p>\n<p>Acest lucru are dou\u0103 consecin\u021be care ac\u021bioneaz\u0103 \u00een sensuri opuse. \u00cen ceea ce prive\u0219te uzura, un HTF sc\u0103zut este benefic: deterior\u0103rile \u0219i erorile de fabrica\u021bie se distribuie uniform pe to\u021bi din\u021bii. Din punct de vedere diagnostic, acela\u0219i HTF sc\u0103zut concentreaz\u0103 semn\u0103tura vibra\u021bional\u0103 a unui singur dinte defect \u00eentr-un eveniment clar, care apare o dat\u0103 pe rota\u021bie \u0219i este u\u0219or de identificat. \u00cen\u021belegerea acestei valori v\u0103 permite s\u0103 interpreta\u021bi ambele aspecte simultan.<\/p>\n<h2>2. Bazele matematice<\/h2>\n<h3>Formula<\/h3>\n<blockquote><p>HTF = GMF \/ LCM(N\u2081, N\u2082) = GMF \u00d7 GCD(N\u2081, N\u2082) \/ (N\u2081 \u00d7 N\u2082)<\/p><\/blockquote>\n<ul>\n<li>N\u2081 = num\u0103rul de din\u021bi al pinionului<\/li>\n<li>N\u2082 = num\u0103rul de din\u021bi ai ro\u021bii din\u021bate<\/li>\n<li>GMF = gear mesh frequency = N\u2081 \u00d7 pinion speed (Hz) = N\u2082 \u00d7 gear speed (Hz)<\/li>\n<li>LCM = the least common multiple of N\u2081 and N\u2082 (equal to N\u2081 \u00d7 N\u2082 \/ GCD, where GCD is the greatest common divisor)<\/li>\n<\/ul>\n<p>GMF-ul pe care HTF \u00eel moduleaz\u0103 este, la r\u00e2ndul s\u0103u, egal cu N \u00d7 frecven\u021ba arborelui pentru oricare dintre ro\u021bile din\u021bate; a <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/gear-mesh-frequency\/\">calculator frecven\u021b\u0103 angrenaj<\/a> calculeaz\u0103 direct GMF \u0219i familia sa de benzi laterale, \u00een timp ce un <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/gear-ratio-calculator\/\">calculator pentru raportul de transmisie<\/a> gestioneaz\u0103 raportul dintre viteza de intrare \u0219i cea de ie\u0219ire de care ave\u021bi nevoie \u00eenainte de a aplica formula.<\/p>\n<h3>Exemplul 1: o pereche de ro\u021bi din\u021bate cu dinte r\u0103t\u0103citor<\/h3>\n<ul>\n<li><strong>Pinion:<\/strong> 23 de din\u021bi la 1800 RPM<\/li>\n<li><strong>Roat\u0103 din\u021bat\u0103:<\/strong> 67 de din\u021bi<\/li>\n<li><strong>CMMDC(23, 67):<\/strong> 1 \u2014 both are prime, so they share no common factor; LCM(23, 67) = 23 \u00d7 67 = 1541<\/li>\n<li><strong>GMF:<\/strong> 23 \u00d7 (1800 \/ 60) = 690 Hz<\/li>\n<li><strong>HTF = 690 \/ 1541 \u2248 0.45 Hz<\/strong> \u2014 aceea\u0219i pereche de din\u021bi se \u00eent\u00e2lne\u0219te doar aproximativ o dat\u0103 la 2.2 secunde, mult sub viteza de 30 Hz a arborelui pinionului<\/li>\n<li><strong>Sens:<\/strong> fiecare dinte al pinionului se angreneaz\u0103 cu fiecare dinte al ro\u021bii din\u021bate \u00eenainte ca schema s\u0103 se repete<\/li>\n<li><strong>Rezultat:<\/strong> un angrenaj cu dinte r\u0103t\u0103citor cu o distribu\u021bie optim\u0103 a uzurii<\/li>\n<\/ul>\n<h3>Exemplul 2: o pereche de ro\u021bi din\u021bate f\u0103r\u0103 dinte r\u0103t\u0103citor<\/h3>\n<ul>\n<li><strong>Pinion:<\/strong> 20 de din\u021bi la 1800 RPM<\/li>\n<li><strong>Roat\u0103 din\u021bat\u0103:<\/strong> 60 de din\u021bi<\/li>\n<li><strong>CMMDC(20, 60):<\/strong> 20; LCM(20, 60) = 60<\/li>\n<li><strong>GMF:<\/strong> 20 \u00d7 (1800 \/ 60) = 600 Hz<\/li>\n<li><strong>HTF = 600 \/ 60 = 10 Hz<\/strong> \u2014 egal\u0103 cu viteza arborelui de ie\u0219ire (roata din\u021bat\u0103)<\/li>\n<li><strong>Sens:<\/strong> exist\u0103 doar 20 de perechi distincte de din\u021bi, iar fiecare pereche reangreneaz\u0103 de zece ori pe secund\u0103<\/li>\n<li><strong>Rezultat:<\/strong> o uzur\u0103 concentrat\u0103 la aceia\u0219i din\u021bi<\/li>\n<\/ul>\n<h3>Exemplul 3: un caz intermediar<\/h3>\n<ul>\n<li><strong>Pinion:<\/strong> 18 din\u021bi la 3600 RPM<\/li>\n<li><strong>Roat\u0103 din\u021bat\u0103:<\/strong> 54 de din\u021bi<\/li>\n<li><strong>CMMDC(18, 54):<\/strong> 18; LCM(18, 54) = 54<\/li>\n<li><strong>GMF:<\/strong> 18 \u00d7 (3600 \/ 60) = 1080 Hz<\/li>\n<li><strong>HTF = 1080 \/ 54 = 20 Hz<\/strong><\/li>\n<li><strong>Model:<\/strong> exist\u0103 doar 18 perechi distincte de contact \u00eentre din\u021bi, fiecare repet\u00e2ndu-se de 20 de ori pe secund\u0103<\/li>\n<\/ul>\n<h2>3. Angrenaje cu dinte r\u0103t\u0103citor vs. angrenaje f\u0103r\u0103 dinte r\u0103t\u0103citor<\/h2>\n<h3>Proiectare cu dinte r\u0103t\u0103citor (GCD = 1)<\/h3>\n<p>Se realizeaz\u0103 atunci c\u00e2nd numerele de din\u021bi sunt prime relativ (f\u0103r\u0103 factori comuni):<\/p>\n<ul>\n<li><strong>Avantaje:<\/strong>\n<ul>\n<li>Fiecare dinte de pinion se angreneaz\u0103 \u00een cele din urm\u0103 cu fiecare dinte de angrenaj<\/li>\n<li>Uzura este distribuit\u0103 uniform pe to\u021bi din\u021bii.<\/li>\n<li>Erorile de fabrica\u021bie sunt compensate, nu accentuate.<\/li>\n<li>Durat\u0103 de via\u021b\u0103 mai lung\u0103 a angrenajelor.<\/li>\n<li>Recomandat pentru majoritatea aplica\u021biilor.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Dezavantaje:<\/strong>\n<ul>\n<li>Un defect care implic\u0103 un anumit dinte <em>pair<\/em> se repet\u0103 doar la HTF-ul foarte jos (o mic\u0103 frac\u021biune din viteza arborelui), astfel \u00eenc\u00e2t sunt necesare \u00eenregistr\u0103ri de lung\u0103 durat\u0103 pentru a-l rezolva. Un singur dinte deteriorat produce totu\u0219i un impact o dat\u0103 pe revolu\u021bia propriului s\u0103u arbore.<\/li>\n<li>Poate necesita o fabricare mai precis\u0103.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Proiectare f\u0103r\u0103 dinte r\u0103t\u0103citor (GCD &gt; 1)<\/h3>\n<p>Se \u00eent\u00e2mpl\u0103 atunci c\u00e2nd numerele din\u021bilor au factori comuni:<\/p>\n<ul>\n<li><strong>Avantaje:<\/strong>\n<ul>\n<li>O selec\u021bie mai simpl\u0103 a num\u0103rului de din\u021bi.<\/li>\n<li>Poate permite utilizarea unor dimensiuni standard de angrenaje disponibile \u00een comer\u021b.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Dezavantaje:<\/strong>\n<ul>\n<li>Aceia\u0219i din\u021bi se angreneaz\u0103 \u00een mod repetat (exist\u0103 doar GCD perechi unice de contact).<\/li>\n<li>Uzura se concentreaz\u0103 pe acelea\u0219i perechi de din\u021bi.<\/li>\n<li>Erorile de fabrica\u021bie la anumi\u021bi din\u021bi se repet\u0103 la fiecare ciclu.<\/li>\n<li>De obicei, durata de via\u021b\u0103 a angrenajelor este mai scurt\u0103.<\/li>\n<li>\u00cen general, se evit\u0103 \u00een proiectarea cutiilor de viteze de calitate.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>4. Semn\u0103tura vibra\u021bional\u0103<\/h2>\n<h3>HTF \u00een spectru \u0219i \u00een forma de und\u0103<\/h3>\n<p>HTF apare rareori ca un v\u00e2rf puternic de sine st\u0103t\u0103tor \u0219i, de obicei, este mult prea mic pentru a fi rezolvat ca spa\u021biere \u00eentre benzi laterale. Benzile laterale din jurul frecven\u021bei de angrenare \u00een <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/spectrum\/\">spectrul de vibra\u021bii<\/a> sunt spa\u021biate la vitezele arborilor celor dou\u0103 ro\u021bi din\u021bate; HTF \u00eensu\u0219i apare ca o modula\u021bie lent\u0103, periodic\u0103, a amplitudinii (un beat) a vibra\u021biei de angrenare:<\/p>\n<ul>\n<li><strong>V\u00e2rf central:<\/strong> GMF (frecven\u021ba de angrenare a ro\u021bilor din\u021bate).<\/li>\n<li><strong>Benzi laterale:<\/strong> GMF \u00b1 1\u00d7, 2\u00d7, 3\u00d7 the shaft speed of the gear carrying a localised defect.<\/li>\n<li><strong>HTF signature:<\/strong> un beat lent \u00een forma de und\u0103 temporal\u0103 \u2014 nivelul general al vibra\u021biilor cre\u0219te \u0219i scade la rata HTF (de obicei o frac\u021biune de hertz p\u00e2n\u0103 la c\u00e2\u021biva hertzi).<\/li>\n<li><strong>Interpretare:<\/strong> modula\u021bia repetat\u0103 la HTF indic\u0103 un defect care implic\u0103 un anumit dinte <em>pair<\/em>, cum ar fi un dinte deteriorat al pinionului care love\u0219te periodic un dinte deteriorat al ro\u021bii din\u021bate; ad\u00e2ncimea modula\u021biei reflect\u0103 severitatea defectului localizat.<\/li>\n<\/ul>\n<p>Deoarece aceste benzi laterale se concentreaz\u0103 \u00een jurul unei frecven\u021be de angrenare ridicate \u0219i pot fi dense, exist\u0103 dou\u0103 tehnici care ajut\u0103 la identificarea lor. <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/cepstrum\/\">Analiza cepstrului<\/a> reduce o familie de benzi laterale dispuse uniform la o singur\u0103 linie de quefren\u021b\u0103, facilit\u00e2nd citirea distan\u021belor dintre acestea, \u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/envelope-analysis\/\">analiza anvelopei<\/a> recupereaz\u0103 impactul de o dat\u0103 pe rota\u021bie al unui dinte deteriorat din semnalul de angrenare modulat.<\/p>\n<h3>Modele de diagnostic<\/h3>\n<p><strong>Un singur dinte afectat:<\/strong> benzi laterale puternice \u00een jurul GMF, spa\u021biate la viteza arborelui ro\u021bii din\u021bate care poart\u0103 dintele deteriorat; un impact pe revolu\u021bia acelei ro\u021bi din\u021bate; <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/time-waveform\/\">form\u0103 de und\u0103 temporal\u0103<\/a> prezint\u0103 un impuls periodic clar.<\/p>\n<p><strong>Excentricitatea angrenajului:<\/strong> benzi laterale la viteza arborelui ap\u0103rute din cauza b\u0103t\u0103ii sau a mont\u0103rii excentrice; ad\u00e2ncimea de angrenare a din\u021bilor variaz\u0103 o dat\u0103 pe revolu\u021bie, modul\u00e2nd amplitudinea GMF; de obicei corectabil prin remontare sau compensarea b\u0103t\u0103ii (vezi <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/eccentricity\/\">excentricitate<\/a>).<\/p>\n<p><strong>Deteriorare pe ambele ro\u021bi din\u021bate (defect al perechii de din\u021bi):<\/strong> c\u00e2nd un dinte deteriorat al pinionului \u00eent\u00e2lne\u0219te periodic un dinte deteriorat al ro\u021bii din\u021bate, vibra\u021bia cre\u0219te \u0219i scade la rata joas\u0103 HTF \u2014 un beat lent suprapus peste vibra\u021bia de angrenare; poate necesita \u00eenlocuirea ro\u021bilor din\u021bate sau acceptarea dac\u0103 se \u00eencadreaz\u0103 \u00een toleran\u021b\u0103.<\/p>\n<h2>5. Diagnosticul practic<\/h2>\n<h3>Identificarea angrenajului defect<\/h3>\n<p>Pentru a stabili care dintre cele dou\u0103 piese \u2014 pinionul sau roata din\u021bat\u0103 principal\u0103 \u2014 prezint\u0103 defectul:<\/p>\n<ol>\n<li><strong>Calcula\u021bi ambele viteze ale arborelui:<\/strong> tura\u021bia de intrare \u0219i de ie\u0219ire.<\/li>\n<li><strong>M\u0103sura\u021bi distan\u021ba dintre benzile laterale<\/strong> din spectrul de vibra\u021bii.<\/li>\n<li><strong>Dac\u0103 distan\u021ba = frecven\u021ba arborelui de intrare \u2192<\/strong> Defec\u021biunea se afl\u0103 la pinion.<\/li>\n<li><strong>Dac\u0103 distan\u021ba = frecven\u021ba arborelui de ie\u0219ire \u2192<\/strong> Defec\u021biunea se afl\u0103 la angrenaj.<\/li>\n<li><strong>Concluzie:<\/strong> Distan\u021ba dintre benzile laterale indic\u0103 care arbore \u2014 \u0219i, prin urmare, care roat\u0103 din\u021bat\u0103 \u2014 prezint\u0103 problema.<\/li>\n<\/ol>\n<p>Acesta este exact genul de m\u0103sur\u0103toare pentru care este potrivit un analizor portabil cu dou\u0103 canale. Datorit\u0103 tahometrului optic care coreleaz\u0103 datele cu unghiul arborelui, <a href=\"https:\/\/vibromera.eu\/ro\/produs\/balanset-1\/\">Balanset-1A<\/a> \u00eenregistreaz\u0103 spectrul \u0219i forma de und\u0103 temporal\u0103 la carcasa cutiei de viteze, astfel \u00eenc\u00e2t distan\u021ba dintre benzile laterale s\u0103 poat\u0103 fi m\u0103surat\u0103 \u00een raport cu vitezele cunoscute de intrare \u0219i ie\u0219ire, iar impulsul care apare o dat\u0103 pe rota\u021bie, generat de un dinte fisurat, s\u0103 poat\u0103 fi identificat \u00een forma de und\u0103 \u2014 totul pe ma\u0219ina \u00een func\u021biune, f\u0103r\u0103 a fi necesar\u0103 deschiderea carcasei. A <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/harmonic-frequency-calculator\/\">calculator de frecven\u021be armonice<\/a> apoi transform\u0103 tura\u021bia m\u0103surat\u0103 \u00een valori exacte exprimate \u00een Hz, pe care trebuie s\u0103 le identifice.<\/p>\n<h3>Evaluarea severit\u0103\u021bii<\/h3>\n<ul>\n<li><strong>Amplitudinea benzii laterale:<\/strong> amplitudinile mai mari indic\u0103 un defect localizat mai grav.<\/li>\n<li><strong>Num\u0103rul de benzi laterale:<\/strong> Mai multe benzi laterale (ordine superioare) indic\u0103 o stare mai proast\u0103<\/li>\n<li><strong>Forma de und\u0103 de timp:<\/strong> un impuls periodic clar confirm\u0103 un impact asupra unui singur dinte.<\/li>\n<li><strong>Compara\u021bie cu GMF:<\/strong> benzile laterale cu o amplitudine mai mare de ~25% din amplitudinea GMF indic\u0103 un defect semnificativ \u2014 un indicator util <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/defect-severity\/\">defect-severitate<\/a> prag.<\/li>\n<\/ul>\n<h2>6. Aspecte legate de proiectare<\/h2>\n<h3>Selectarea numerelor din\u021bilor<\/h3>\n<ul>\n<li><strong>Folose\u0219te numere prime<\/strong> acolo unde este posibil, s\u0103 se impun\u0103 GCD = 1 (proiectare cu din\u021bi de v\u00e2n\u0103toare).<\/li>\n<li><strong>Evita\u021bi factorii obi\u0219nui\u021bi<\/strong> \u2014 evita\u021bi combina\u021biile de tipul 20:60 (GCD = 20).<\/li>\n<li><strong>Exemple bune de perechi:<\/strong> 17:51, 19:57, 23:69 (toate cu GCD = 1).<\/li>\n<li><strong>Compromis:<\/strong> aceast\u0103 restric\u021bie poate limita u\u0219or gama de rapoarte de transmisie disponibile.<\/li>\n<\/ul>\n<h3>C\u00e2nd proiectarea f\u0103r\u0103 dinte de v\u00e2n\u0103toare este acceptabil\u0103<\/h3>\n<ul>\n<li>Aplica\u021bii cu sarcin\u0103 redus\u0103, \u00een care uzura nu este un factor critic.<\/li>\n<li>Seturi de angrenaje standard \u00een care este obligatoriu un raport exact.<\/li>\n<li>Aplica\u021bii cu durat\u0103 scurt\u0103 de via\u021b\u0103, \u00een care distribu\u021bia uzurii are o importan\u021b\u0103 redus\u0103.<\/li>\n<li>Atunci c\u00e2nd avantajele procesului de fabrica\u021bie compenseaz\u0103 pierderile cauzate de uzur\u0103.<\/li>\n<\/ul>\n<h2>7. Rela\u021bia cu alte frecven\u021be ale angrenajelor<\/h2>\n<h3>Ierarhia frecven\u021belor \u00eentr-o cutie de viteze<\/h3>\n<ul>\n<li><strong>Vitezele arborelui:<\/strong> 1\u00d7 pentru intrare \u0219i ie\u0219ire \u2014 cele mai joase frecven\u021be de rota\u021bie.<\/li>\n<li><strong>HTF:<\/strong> \u00een mod normal cea mai joas\u0103 frecven\u021b\u0103 dintre toate \u2014 o mic\u0103 frac\u021biune din viteza arborelui \u00eentr-un design hunting (GCD = 1) \u0219i niciodat\u0103 mai mare dec\u00e2t viteza arborelui mai lent chiar \u0219i \u00eentr-unul non-hunting.<\/li>\n<li><strong>GMF:<\/strong> num\u0103rul de din\u021bi \u00d7 tura\u021bia arborelui \u2014 frecven\u021ba primar\u0103 maxim\u0103.<\/li>\n<li><strong>Armonici GMF:<\/strong> 2\u00d7GMF, 3\u00d7GMF \u0219i a\u0219a mai departe, care rezult\u0103 din neliniarit\u0103\u021bile angren\u0103rii \u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/backlash\/\">joc \u00eentre din\u021bi<\/a>.<\/li>\n<\/ul>\n<h3>Strategia de analiz\u0103 a benzii laterale<\/h3>\n<ul>\n<li>Benzi laterale la distan\u021ba corespunz\u0103toare tura\u021biei arborelui \u2192 un angrenaj excentric sau un defect la un singur dinte.<\/li>\n<li>Modula\u021bie lent\u0103 a amplitudinii (beat) la rata HTF \u2192 o problem\u0103 repetitiv\u0103 a perechii de din\u021bi, cum ar fi deterior\u0103ri corelate pe ambele ro\u021bi din\u021bate.<\/li>\n<li>F\u0103r\u0103 benzi laterale distincte \u2192 distribu\u021bie general\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/gear-wear\/\">uzura angrenajului<\/a>, sau pur \u0219i simplu un angrenaj s\u0103n\u0103tos.<\/li>\n<\/ul>\n<p>Frecven\u021ba dintelui-v\u00e2n\u0103tor, de\u0219i reprezint\u0103 un aspect mai pu\u021bin cunoscut al dinamicii angrenajelor, ofer\u0103 informa\u021bii diagnostice extrem de utile. \u00cen\u021belegerea modului de calcul al HTF \u0219i recunoa\u0219terea benzilor laterale HTF permit unui analist s\u0103 identifice cu precizie angrenajul defect \u0219i s\u0103 stabileasc\u0103 dac\u0103 problema este cauzat\u0103 de un singur dinte deteriorat sau de o defec\u021biune mai extins\u0103 \u2014 ceea ce faciliteaz\u0103 luarea unor decizii de \u00eentre\u021binere bine \u021bintite \u0219i sigure \u00een cadrul procesului de depanare a cutiei de viteze.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/\">\u2190 \u00cenapoi la indexul principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Afla\u021bi despre frecven\u021ba din\u021bilor de v\u00e2n\u0103toare, componenta vibra\u021biilor de joas\u0103 frecven\u021b\u0103 din angrenaje, unde aceia\u0219i din\u021bi se angreneaz\u0103 \u00een mod repetat, dezv\u0103luind defectele \u0219i excentricitatea individual\u0103 a din\u021bilor.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-139","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/139","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/139\/revisions"}],"predecessor-version":[{"id":102037,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/139\/revisions\/102037"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/media?parent=139"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/categories?post=139"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/tags?post=139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}