{"id":234,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/shaft-crack\/"},"modified":"2026-05-23T22:53:50","modified_gmt":"2026-05-23T22:53:50","slug":"shaft-crack","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/sk\/glossary\/shaft-crack\/","title":{"rendered":"\u010co je to prasklina v hriadeli? Detekcia a diagnostika"},"content":{"rendered":"<h1>Pochopenie trhl\u00edn v hriade\u013eoch rotuj\u00facich strojov<\/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\/sk\/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\/sk\/product\/balanset-1\/\" title=\"Prenosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibr\u00e1ci\u00ed 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=\"Kompletn\u00e1 s\u00faprava prenosn\u00e9ho vyva\u017eovacieho zariadenia a analyz\u00e1tora vibr\u00e1ci\u00ed Balanset-1A\" 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\/sk\/product-category\/devices\/\" rel=\"tag\">Zariadenia<\/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\/sk\/product\/balanset-1\/\" title=\"Prenosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibr\u00e1ci\u00ed Balanset-1A\">Prenosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibr\u00e1ci\u00ed 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> + DPH (ak sa uplat\u0148uje)<\/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=\"\/sk\/wp-json\/wp\/v2\/glossary\/234?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/234?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=\"Prida\u0165 do ko\u0161\u00edka: \u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201c\" rel=\"nofollow\" data-success_message=\"\u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibr\u00e1ci\u00ed\">\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=\"Sn\u00edma\u010d vibr\u00e1ci\u00ed Balanset-1A zbl\u00edzka\" 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\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/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\/sk\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibr\u00e1ci\u00ed\">Sn\u00edma\u010d vibr\u00e1ci\u00ed<\/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> + DPH (ak sa uplat\u0148uje)<\/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=\"\/sk\/wp-json\/wp\/v2\/glossary\/234?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/234?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eVibration sensor\u201c\" rel=\"nofollow\" data-success_message=\"\u201eVibration sensor\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd tachometer)\">\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=\"Optick\u00fd senzor (laserov\u00fd tachometer)\" 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\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/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\/sk\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd tachometer)\">Optick\u00fd senzor (laserov\u00fd tachometer)<\/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> + DPH (ak sa uplat\u0148uje)<\/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=\"\/sk\/wp-json\/wp\/v2\/glossary\/234?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/234?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eOptical Sensor (Laser Tachometer)\u201c\" rel=\"nofollow\" data-success_message=\"\u201eOptical Sensor (Laser Tachometer)\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/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=\"S\u00faprava na vyva\u017eovanie rotora Vibromera: prenosn\u00e9 puzdro, viackan\u00e1lov\u00fd prevodn\u00edk sign\u00e1lu, ru\u010dn\u00fd analyz\u00e1tor, magnetick\u00e1 z\u00e1klad\u0148a, vibra\u010dn\u00e9 senzory a \u0161pir\u00e1lov\u00e9 k\u00e1ble.\" 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\/sk\/product-category\/devices\/\" rel=\"tag\">Zariadenia<\/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\/sk\/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> + DPH (ak sa uplat\u0148uje)<\/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=\"\/sk\/wp-json\/wp\/v2\/glossary\/234?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/234?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eBalanset-4\u201c\" rel=\"nofollow\" data-success_message=\"\u201eBalanset-4\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/product\/magnet-stand\/\" title=\"Magnetick\u00fd stojan 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=\"Magnetick\u00e1 z\u00e1klad\u0148a.\" 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\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/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\/sk\/product\/magnet-stand\/\" title=\"Magnetick\u00fd stojan Insize-60-kgf\">Magnetick\u00fd stojan 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> + DPH (ak sa uplat\u0148uje)<\/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=\"\/sk\/wp-json\/wp\/v2\/glossary\/234?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/234?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eMagnetic Stand Insize-60-kgf\u201c\" rel=\"nofollow\" data-success_message=\"\u201eMagnetic Stand Insize-60-kgf\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/product\/reflective-tape\/\" title=\"Reflexn\u00e1 p\u00e1ska\">\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=\"Reflexn\u00e1 p\u00e1ska\" 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\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/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\/sk\/product\/reflective-tape\/\" title=\"Reflexn\u00e1 p\u00e1ska\">Reflexn\u00e1 p\u00e1ska<\/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> + DPH (ak sa uplat\u0148uje)<\/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=\"\/sk\/wp-json\/wp\/v2\/glossary\/234?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/234?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eReflective tape\u201c\" rel=\"nofollow\" data-success_message=\"\u201eReflective tape\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamick\u00fd vyva\u017eova\u010d &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=\"Obsah s\u00fapravy Balanset-1A s jednotkou rozhrania, sn\u00edma\u010dmi, tachometrom a pr\u00edslu\u0161enstvom\" 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\/sk\/product-category\/devices\/\" rel=\"tag\">Zariadenia<\/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\/sk\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamick\u00fd vyva\u017eova\u010d &quot;Balanset-1A&quot; OEM\">Dynamick\u00fd vyva\u017eova\u010d \"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> + DPH (ak sa uplat\u0148uje)<\/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=\"\/sk\/wp-json\/wp\/v2\/glossary\/234?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/234?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201c\" rel=\"nofollow\" data-success_message=\"\u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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>A <strong>prasklina v hriadeli<\/strong> je trhlina alebo nespojitos\u0165 v rotuj\u00facom hriadeli, ktor\u00e1 vznik\u00e1 v d\u00f4sledku \u00fanavy materi\u00e1lu, koncentr\u00e1cie nap\u00e4tia alebo chyby materi\u00e1lu. Trhliny takmer v\u017edy za\u010d\u00ednaj\u00fa na povrchu a \u0161\u00edria sa dovn\u00fatra, pri\u010dom postupuj\u00fa kolmo na smer maxim\u00e1lneho \u0165ahov\u00e9ho nap\u00e4tia. V rotuj\u00facich strojoch patria medzi v\u00f4bec najnebezpe\u010dnej\u0161ie poruchy, preto\u017ee trhlina sa m\u00f4\u017ee z nezistite\u013enej vlasovej \u010diary rozvin\u00fa\u0165 a\u017e do \u00fapln\u00e9ho zlomenia hriade\u013ea za nieko\u013eko hod\u00edn \u010di dn\u00ed, s potenci\u00e1lom katastrof\u00e1lneho zlyhania ohrozuj\u00faceho \u017eivoty. Z\u00e1chranou je, \u017ee rozv\u00edjaj\u00faca sa trhlina sa prezrad\u00ed v <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/vibration\/\">vibr\u00e1cie<\/a> sign\u00e1l \u2014 najtypickej\u0161ie rast\u00facou zlo\u017ekou 2\u00d7 (dvakr\u00e1t na ot\u00e1\u010dku) \u2014 tak\u017ee d\u00f4sledn\u00e9 <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/vibration-analysis\/\">anal\u00fdza vibr\u00e1ci\u00ed<\/a> pon\u00faka skuto\u010dn\u00fa \u0161ancu zachyti\u0165 ju sk\u00f4r, ne\u017e povol\u00ed.<\/p>\n<h2>1. Defin\u00edcia: \u010co je trhlina hriade\u013ea?<\/h2>\n<p>Z mechanick\u00e9ho h\u013eadiska je trhlina oblas\u0165, kde hriade\u013e stratil svoju spojitos\u0165, a teda aj svoju tuhos\u0165. Pri ot\u00e1\u010dan\u00ed hriade\u013ea sa trhlina pod kol\u00edsav\u00fdm ohybov\u00fdm nap\u00e4t\u00edm striedavo otv\u00e1ra a zatv\u00e1ra a toto &#8220;d\u00fdchanie&#8221; sp\u00f4sobuje, \u017ee tuhos\u0165 hriade\u013ea sa men\u00ed v z\u00e1vislosti od uhlovej polohy. T\u00e1to asymetria je kore\u0148om diagnostick\u00fdch pr\u00edznakov, o ktor\u00fdch sa pojedn\u00e1va ni\u017e\u0161ie, a pr\u00e1ve ona odli\u0161uje skuto\u010dn\u00fa prie\u010dnu trhlinu od trval\u00e9ho <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/shaft-bow\/\">luk hriade\u013ea<\/a> or a simple <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/unbalance\/\">nevyv\u00e1\u017eenos\u0165<\/a>. \u0160ir\u0161\u00ed jav, ke\u010f trhlina pokro\u010dila nato\u013eko, \u017ee zmen\u00ed spr\u00e1vanie cel\u00e9ho rotora, sa niekedy sprac\u00fava pod n\u00e1zvom <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/cracked-rotor\/\">prasknut\u00fd rotor<\/a>.<\/p>\n<h2>2. Be\u017en\u00e9 pr\u00ed\u010diny trhl\u00edn hriade\u013ea<\/h2>\n<h3>\u00danava z cyklick\u00fdch nap\u00e4t\u00ed<\/h3>\n<p>Dominantn\u00e1 pr\u00ed\u010dina v rota\u010dn\u00fdch strojoch, \u00fanava materi\u00e1lu hromad\u00ed po\u0161kodenie po jednom cykle nap\u00e4tia:<\/p>\n<ul>\n<li><strong>\u00danava pri oh\u00fdban\u00ed:<\/strong> ot\u00e1\u010daj\u00faci sa hriade\u013e s nerovnomernou tuhos\u0165ou alebo mimostredov\u00fdm za\u0165a\u017een\u00edm je vystaven\u00fd plne striedav\u00e9mu cyklick\u00e9mu ohybov\u00e9mu nap\u00e4tiu.<\/li>\n<li><strong>Torzn\u00e1 \u00fanava:<\/strong> osciluj\u00faci kr\u00fatiaci moment v prenosov\u00fdch hriade\u013eoch poh\u00e1\u0148a <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/torsional-vibration\/\">torzn\u00e9 vibr\u00e1cie<\/a> and fatigue.<\/li>\n<li><strong>Vysokocyklov\u00e1 \u00fanava:<\/strong> mili\u00f3ny cyklov sa hromadia po\u010das rokov, tak\u017ee aj mierne nap\u00e4tia m\u00f4\u017eu nakoniec iniciova\u0165 trhlinu.<\/li>\n<li><strong>Koncentr\u00e1cia nap\u00e4tia:<\/strong> dr\u00e1\u017eky pre per\u00e1, prie\u010dne otvory, prechodov\u00e9 polomery a in\u00e9 geometrick\u00e9 nespojitosti lok\u00e1lne zv\u00e4\u010d\u0161uj\u00fa nap\u00e4tie a s\u00fa obvykl\u00fdmi miestami inici\u00e1cie.<\/li>\n<\/ul>\n<h3>Prev\u00e1dzkov\u00e9 podmienky<\/h3>\n<ul>\n<li><strong>Nadmern\u00e1 nevyv\u00e1\u017eenos\u0165:<\/strong> vysok\u00e1 odstrediv\u00e1 sila prid\u00e1va cyklick\u00e9 ohybov\u00e9 nap\u00e4tie.<\/li>\n<li><strong>Nespr\u00e1vne zarovnanie:<\/strong> ohybov\u00e9 momenty z <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/misalignment\/\">nespr\u00e1vne zarovnanie<\/a> ur\u00fdch\u013euj\u00fa \u00fanavu.<\/li>\n<li><strong>Prev\u00e1dzka v rezonancii:<\/strong> chod pri alebo bl\u00edzko <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/critical-speed\/\">kritick\u00e1 r\u00fdchlos\u0165<\/a> vytv\u00e1ra ve\u013ek\u00e9 priehyby a nap\u00e4tia.<\/li>\n<li><strong>Pre\u0165a\u017eenie:<\/strong> prev\u00e1dzka nad kon\u0161truk\u010dn\u00fdmi limitmi.<\/li>\n<li><strong>Tepeln\u00e9 nam\u00e1hanie:<\/strong> r\u00fdchle zahrievanie alebo ochladzovanie a prudk\u00e9 teplotn\u00e9 gradienty, ktor\u00e9 m\u00f4\u017eu tie\u017e vyvola\u0165 prechodn\u00fd <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/thermal-bow\/\">tepeln\u00fd priehyb<\/a>.<\/li>\n<\/ul>\n<h3>Materi\u00e1lov\u00e9 a v\u00fdrobn\u00e9 chyby<\/h3>\n<ul>\n<li><strong>Obsah l\u00e1tok:<\/strong> troska, dutiny alebo cudzie l\u00e1tky v materi\u00e1li hriade\u013ea.<\/li>\n<li><strong>Nespr\u00e1vne tepeln\u00e9 spracovanie:<\/strong> nedostato\u010dn\u00e9 kalenie alebo pop\u00fa\u0161\u0165anie.<\/li>\n<li><strong>Chyby obr\u00e1bania:<\/strong> stopy po n\u00e1strojoch, ryhy alebo \u0161krabance p\u00f4sobiace ako koncentr\u00e1tory nap\u00e4tia.<\/li>\n<li><strong>Kor\u00f3zne jamky:<\/strong> povrchov\u00e9 jamky, ktor\u00e9 sl\u00fa\u017eia ako miesta inici\u00e1cie trhliny.<\/li>\n<li><strong>Trenie:<\/strong> na lisovan\u00fdch spojoch alebo dr\u00e1\u017ekach pre per\u00e1, kde mikropohyb po\u0161kodzuje povrch.<\/li>\n<\/ul>\n<h3>Prev\u00e1dzkov\u00e9 udalosti<\/h3>\n<ul>\n<li><strong>Udalosti nadmern\u00fdch ot\u00e1\u010dok:<\/strong> n\u00fadzov\u00e9 alebo n\u00e1hodn\u00e9 prekro\u010denie ot\u00e1\u010dok sp\u00f4sobuj\u00face vysok\u00e9 nap\u00e4tia.<\/li>\n<li><strong>Severe rubs:<\/strong> <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/rotor-rub\/\">trenie rotora<\/a> Kontakt generuj\u00faci teplo a lok\u00e1lna koncentr\u00e1cia nap\u00e4tia<\/li>\n<li><strong>N\u00e1razov\u00e9 za\u0165a\u017eenie:<\/strong> N\u00e1hle za\u0165a\u017eenie z procesn\u00fdch naru\u0161en\u00ed alebo mechanick\u00fdch otrasov<\/li>\n<li><strong>Predch\u00e1dzaj\u00face opravy:<\/strong> zv\u00e1ranie alebo obr\u00e1banie, ktor\u00e9 zanech\u00e1va zvy\u0161kov\u00e9 nap\u00e4tia.<\/li>\n<\/ul>\n<h2>3. Vibra\u010dn\u00e9 pr\u00edznaky prasknut\u00e9ho hriade\u013ea<\/h2>\n<h3>Charakteristick\u00e1 zlo\u017eka 2\u00d7<\/h3>\n<p>Pr\u00edzna\u010dnou signat\u00farou prie\u010dnej trhliny hriade\u013ea je v\u00fdrazn\u00e1 <strong>2\u00d7 (druh\u00e1 harmonick\u00e1)<\/strong> zlo\u017eka a mechanizmus, ktor\u00fd za \u0148ou stoj\u00ed, stoj\u00ed za presn\u00e9 pochopenie:<\/p>\n<ul>\n<li>Pri ot\u00e1\u010dan\u00ed hriade\u013ea sa trhlina otv\u00e1ra a zatv\u00e1ra dvakr\u00e1t za ot\u00e1\u010dku.<\/li>\n<li>Ke\u010f je trhlina na tlakovej strane (v spodnej \u010dasti ot\u00e1\u010dania), zatv\u00e1ra sa a hriade\u013e je tuh\u0161\u00ed.<\/li>\n<li>Ke\u010f sa presunie na \u0165ahov\u00fa stranu (v hornej \u010dasti ot\u00e1\u010dania), otv\u00e1ra sa a hriade\u013e je poddajnej\u0161\u00ed.<\/li>\n<li>Toto kol\u00edsanie tuhosti dvakr\u00e1t za ot\u00e1\u010dku je samo o sebe budiacou silou s frekvenciou 2\u00d7.<\/li>\n<li>Amplit\u00fada 2\u00d7 rastie s prehlbovan\u00edm trhliny a zv\u00e4\u010d\u0161ovan\u00edm asymetrie tuhosti \u2014 preto je <em>trend<\/em> d\u00f4le\u017eit\u00fd rovnako ako absol\u00fatna \u00farove\u0148.<\/li>\n<\/ul>\n<h3>Dodato\u010dn\u00e9 vibra\u010dn\u00e9 indik\u00e1tory<\/h3>\n<ul>\n<li><strong>1\u00d7 zmeny:<\/strong> postupn\u00fd n\u00e1rast zlo\u017eky 1\u00d7 v d\u00f4sledku zmenenej tuhosti a vzniku trval\u00e9ho priehybu.<\/li>\n<li><strong>Vy\u0161\u0161ie harmonick\u00e9:<\/strong> S rast\u00facou z\u00e1va\u017enos\u0165ou sa m\u00f4\u017eu objavi\u0165 zlo\u017eky 3\u00d7 a 4\u00d7.<\/li>\n<li><strong>Phase shifts:<\/strong> . <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/phase\/\">f\u00e1za<\/a> uhol sa men\u00ed po\u010das rozbehu alebo dobehu a pri r\u00f4znych ot\u00e1\u010dkach.<\/li>\n<li><strong>Spr\u00e1vanie z\u00e1visl\u00e9 od ot\u00e1\u010dok:<\/strong> vibr\u00e1cie sa m\u00f4\u017eu meni\u0165 neline\u00e1rne v z\u00e1vislosti od ot\u00e1\u010dok.<\/li>\n<li><strong>Citlivos\u0165 na teplotu:<\/strong> nameran\u00e9 hodnoty m\u00f4\u017eu sledova\u0165 tepeln\u00fa roz\u0165a\u017enos\u0165, ktor\u00e1 trhlinu otv\u00e1ra alebo zatv\u00e1ra.<\/li>\n<\/ul>\n<h3>Spr\u00e1vanie pri rozbehu a dobehu<\/h3>\n<ul>\n<li>Zlo\u017eka 2\u00d7 sa po\u010das prechodov\u00fdch stavov spr\u00e1va nezvy\u010dajne.<\/li>\n<li>A <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/bode-plot\/\">Bodeho graf<\/a> m\u00f4\u017ee vykazova\u0165 dva rezonan\u010dn\u00e9 vrcholy, jeden pri polovici ka\u017ed\u00fdch kritick\u00fdch ot\u00e1\u010dok, ako budenie 2\u00d7 prech\u00e1dza cez ne.<\/li>\n<li>Priebeh f\u00e1zy zlo\u017eky 1\u00d7 sa m\u00f4\u017ee v\u00fdrazne l\u00ed\u0161i\u0165 od be\u017enej odozvy na nevyv\u00e1\u017eenos\u0165.<\/li>\n<\/ul>\n<h2>4. Met\u00f3dy detekcie<\/h2>\n<h3>Monitorovanie vibr\u00e1ci\u00ed a meranie v ter\u00e9ne<\/h3>\n<p>Ke\u010f\u017ee varovanie je spektr\u00e1lne a postupn\u00e9, prvou l\u00edniou obrany je pravideln\u00e9 meranie:<\/p>\n<ul>\n<li><strong>Trendy:<\/strong> sledujte pomer 2\u00d7\/1\u00d7 v \u010dase; jeho st\u00e1ly n\u00e1rast je varovan\u00edm a pomer nad pribli\u017ene 0,5 si vy\u017eaduje presk\u00famanie. N\u00e1hle zmeny vzoru s\u00fa rovnako podozriv\u00e9.<\/li>\n<li><strong>Spektr\u00e1lna anal\u00fdza:<\/strong> routine <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/fft\/\">R\u00fdchla premena funkcie (FFT)<\/a> merania v porovnan\u00ed s historick\u00fdm <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/baseline\/\">z\u00e1kladn\u00e1 l\u00ednia<\/a>, odhalia vznik alebo rast vrcholu 2\u00d7.<\/li>\n<li><strong>Anal\u00fdza prechodov\u00fdch javov:<\/strong> <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/waterfall-plot\/\">vodop\u00e1dov\u00e9 grafy<\/a> a Bodeho diagramy z rozbehu a dobehu odha\u013euj\u00fa nezvy\u010dajn\u00e9 spr\u00e1vanie pri prechodoch cez kritick\u00e9 ot\u00e1\u010dky.<\/li>\n<\/ul>\n<p>Zaznamenanie amplit\u00fady a f\u00e1zy zlo\u017eiek 1\u00d7 a 2\u00d7 je presne to meranie, ktor\u00e9 prenosn\u00fd dvojkan\u00e1lov\u00fd analyz\u00e1tor vykon\u00e1va rutinne. S pr\u00edstrojom s f\u00e1zovou referenciou, ak\u00fdm je <a href=\"https:\/\/vibromera.eu\/sk\/produkt\/balanset-1\/\">Balanset-1A<\/a>, technik m\u00f4\u017ee pri norm\u00e1lnej prev\u00e1dzke a pri ka\u017edom dobehu zaznamen\u00e1va\u0165 vektory 1\u00d7 a 2\u00d7 na lo\u017eisk\u00e1ch a budova\u0165 tak trend, ktor\u00fd rozl\u00ed\u0161i ne\u0161kodn\u00fa zlo\u017eku 2\u00d7 od tej, ktor\u00e1 postupne narast\u00e1 \u2014 rozdiel medzi pl\u00e1novanou odst\u00e1vkou a nepl\u00e1novanou hav\u00e1riou.<\/p>\n<h3>Nevibra\u010dn\u00e9 met\u00f3dy<\/h3>\n<p>Podozriv\u00fd trend vibr\u00e1ci\u00ed by mal by\u0165 v\u017edy potvrden\u00fd priamym <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/non-destructive-testing\/\">nedestrukt\u00edvne sk\u00fa\u0161anie<\/a>:<\/p>\n<ul>\n<li><strong>Kontrola magnetick\u00fdmi \u010dasticami (MPI):<\/strong> s vysokou spo\u013eahlivos\u0165ou odha\u013euje povrchov\u00e9 a podpovrchov\u00e9 trhliny na pr\u00edstupn\u00fdch feromagnetick\u00fdch hriade\u013eoch; z\u00e1klad rutinn\u00fdch kontrol po\u010das odst\u00e1vok.<\/li>\n<li><strong>Ultrazvukov\u00e1 kontrola (UT):<\/strong> deteguje vn\u00fatorn\u00e9 aj povrchov\u00e9 trhliny a dok\u00e1\u017ee ich odhali\u0165 sk\u00f4r, ne\u017e sa objav\u00ed ak\u00fdko\u013evek vibra\u010dn\u00fd pr\u00edznak; vy\u017eaduje \u0161pecializovan\u00e9 zariadenie a vy\u0161kolen\u00fd person\u00e1l a je met\u00f3dou vo\u013eby pre kritick\u00e9 hriadele.<\/li>\n<li><strong>Kapil\u00e1rna sk\u00fa\u0161ka:<\/strong> jednoduch\u00e1 met\u00f3da na zis\u0165ovanie povrchov\u00fdch trhl\u00edn, ktor\u00e1 vy\u017eaduje o\u010distenie a \u00fapravu povrchu, u\u017eito\u010dn\u00e1 pre pr\u00edstupn\u00e9 oblasti po\u010das odst\u00e1vky.<\/li>\n<li><strong>Sk\u00fa\u0161ka v\u00edriv\u00fdmi pr\u00fadmi:<\/strong> bezkontaktn\u00e9 zis\u0165ovanie povrchov\u00fdch trhl\u00edn, ktor\u00e9 sa hod\u00ed na automatizovan\u00fa kontrolu a funguje na magnetick\u00fdch aj nemagnetick\u00fdch materi\u00e1loch.<\/li>\n<\/ul>\n<h2>5. Reakcia a n\u00e1pravn\u00e9 opatrenia<\/h2>\n<h3>Okam\u017eit\u00e9 kroky po zisten\u00ed<\/h3>\n<ol>\n<li><strong>Zv\u00fd\u0161te frekvenciu monitorovania:<\/strong> prejdite z mesa\u010dnej frekvencie na t\u00fd\u017edenn\u00fa alebo denn\u00fa.<\/li>\n<li><strong>Zn\u00ed\u017eenie prev\u00e1dzkovej intenzity vibr\u00e1ci\u00ed:<\/strong> ni\u017e\u0161iu r\u00fdchlos\u0165 alebo za\u0165a\u017eenie, ak je to mo\u017en\u00e9.<\/li>\n<li><strong>Napl\u00e1nujte odst\u00e1vku:<\/strong> Napl\u00e1nujte si opravu alebo v\u00fdmenu pri najbli\u017e\u0161ej bezpe\u010dnej pr\u00edle\u017eitosti<\/li>\n<li><strong>Vykonajte NDE:<\/strong> potvr\u010fte pr\u00edtomnos\u0165 trhliny a priamo pos\u00fa\u010fte jej z\u00e1va\u017enos\u0165.<\/li>\n<li><strong>Pos\u00fadenie riz\u00edk:<\/strong> form\u00e1lne rozhodnite, \u010di je \u010fal\u0161ia prev\u00e1dzka bezpe\u010dn\u00e1.<\/li>\n<\/ol>\n<h3>Dlhodob\u00e9 rie\u0161enia<\/h3>\n<ul>\n<li><strong>V\u00fdmena hriade\u013ea:<\/strong> najspo\u013eahlivej\u0161ie rie\u0161enie potvrdenej trhliny.<\/li>\n<li><strong>Oprava (obmedzen\u00e9 pr\u00edpady):<\/strong> niektor\u00e9 trhliny mo\u017eno odstr\u00e1ni\u0165 obroben\u00edm a navari\u0165, ale len po odbornom pos\u00faden\u00ed.<\/li>\n<li><strong>Anal\u00fdza pr\u00ed\u010din:<\/strong> zistite, pre\u010do trhlina vznikla, aby sa neopakovala.<\/li>\n<li><strong>Kon\u0161truk\u010dn\u00e9 \u00fapravy:<\/strong> odstr\u00e1\u0148te koncentr\u00e1cie nap\u00e4tia, zlep\u0161ite v\u00fdber materi\u00e1lu alebo zme\u0148te prev\u00e1dzkov\u00fd re\u017eim.<\/li>\n<\/ul>\n<h2>6. Strategick\u00e9 opatrenia na prevenciu<\/h2>\n<h3>F\u00e1za n\u00e1vrhu<\/h3>\n<ul>\n<li>Odstr\u00e1\u0148te ostr\u00e9 rohy a koncentr\u00e1cie nap\u00e4tia.<\/li>\n<li>Pri zmen\u00e1ch priemeru pou\u017e\u00edvajte ve\u013ekorys\u00e9 polomery zaoblenia.<\/li>\n<li>Stanovte materi\u00e1ly vhodn\u00e9 pre dan\u00fa \u00farove\u0148 nap\u00e4tia a prostredie.<\/li>\n<li>Vykonajte anal\u00fdzu nap\u00e4tia met\u00f3dou kone\u010dn\u00fdch prvkov na kritickej geometrii.<\/li>\n<li>Aplikujte povrchov\u00e9 \u00fapravy, ako je gu\u013e\u00f4\u010dkovanie alebo nitrid\u00e1cia, na zv\u00fd\u0161enie odolnosti proti \u00fanave.<\/li>\n<\/ul>\n<h3>Prev\u00e1dzkov\u00e1 f\u00e1za<\/h3>\n<ul>\n<li>Udr\u017eiava\u0165 si dobr\u00e9 <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/balance-quality\/\">kvalita rovnov\u00e1hy<\/a> s cie\u013eom minimalizova\u0165 cyklick\u00e9 ohybov\u00e9 nam\u00e1hanie.<\/li>\n<li>Zabezpe\u010dte presn\u00e9 ustavenie.<\/li>\n<li>Vyhnite sa dlhodobej prev\u00e1dzke pri kritick\u00fdch ot\u00e1\u010dkach.<\/li>\n<li>Predch\u00e1dzajte situ\u00e1ci\u00e1m, ke\u010f d\u00f4jde k prekro\u010deniu r\u00fdchlosti.<\/li>\n<li>Kontrolujte tepeln\u00e9 nap\u00e4tie spr\u00e1vnymi postupmi nahrievania a ochladzovania.<\/li>\n<\/ul>\n<h3>F\u00e1za \u00fadr\u017eby<\/h3>\n<ul>\n<li>Pravidelne vykon\u00e1vajte kontroly pomocou vhodn\u00fdch met\u00f3d nede\u0161trukt\u00edvneho sk\u00fa\u0161ania (NDE).<\/li>\n<li>Spustite vibra\u010dn\u00fd <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/trending\/\">trendy<\/a> program na zachytenie skor\u00fdch pr\u00edznakov.<\/li>\n<li>Pravidelne prevyva\u017eujte, aby ste udr\u017eali \u00fanavov\u00e9 nap\u00e4tia n\u00edzke \u2014 vyva\u017eovanie na mieste <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/vyvazovanie-pola\/\">vyva\u017eovanie na mieste<\/a> to umo\u017e\u0148uje prakticky vykona\u0165 bez demont\u00e1\u017ee rotora.<\/li>\n<li>Udr\u017eiavajte protikor\u00f3znu ochranu a n\u00e1tery.<\/li>\n<\/ul>\n<p>Trhliny hriade\u013ea predstavuj\u00fa jeden z najz\u00e1va\u017enej\u0161\u00edch sp\u00f4sobov poruchy rota\u010dn\u00fdch strojov, kde sa d\u00f4sledok prehliadnutia jednej z nich meria zni\u010den\u00fdmi zariadeniami a ohrozen\u00fdmi \u013eu\u010fmi. Funguje pr\u00e1ve t\u00e1to kombin\u00e1cia: monitorovanie vibr\u00e1ci\u00ed na v\u010dasn\u00e9 odhalenie charakteristick\u00e9ho 2\u00d7 pr\u00edznaku a pravideln\u00e1 nede\u0161trukt\u00edvna sk\u00fa\u0161ka na potvrdenie a stanovenie ve\u013ekosti toho, \u010do vibr\u00e1cie len nazna\u010duj\u00fa. Spolo\u010dne umo\u017e\u0148uj\u00fa pl\u00e1novan\u00fa, riaden\u00fa \u00fadr\u017ebu \u2014 a zabra\u0148uj\u00fa tomu, aby sa tich\u00e1 vlasov\u00e1 trhlina zmenila na n\u00e1hly, prudk\u00fd lom.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/sk\/glossary\/\">\u2190 Sp\u00e4\u0165 na hlavn\u00fd index<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Z\u00edskajte inform\u00e1cie o prasklin\u00e1ch hriade\u013eov v rotuj\u00facich strojoch, ich pr\u00ed\u010din\u00e1ch, charakteristick\u00fdch vibra\u010dn\u00fdch podpisoch vr\u00e1tane vibra\u010dn\u00fdch komponentov 2X a kritick\u00fdch met\u00f3dach detekcie, aby ste predi\u0161li katastrofick\u00fdm poruch\u00e1m.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-234","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary\/234","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary\/234\/revisions"}],"predecessor-version":[{"id":101407,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary\/234\/revisions\/101407"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/media?parent=234"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/categories?post=234"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/tags?post=234"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}