{"id":1114,"date":"2018-10-22T20:11:42","date_gmt":"2018-10-22T20:11:42","guid":{"rendered":"https:\/\/vibromera.eu\/?p=1114"},"modified":"2025-06-10T21:17:09","modified_gmt":"2025-06-10T21:17:09","slug":"vacuum-pumps-balancing-stand","status":"publish","type":"post","link":"https:\/\/vibromera.eu\/bs\/uncategorized\/vacuum-pumps-balancing-stand\/","title":{"rendered":"Stalak za balansiranje vakuum pumpi"},"content":{"rendered":"
\n
\n\t\t\"\n\t<\/div>\n\n<\/div><\/div>

Stalak za balansiranje vakuum pumpi<\/h3>\n
\n\t

Radni stol za balansaciju rotora na visokim brzinama za vakuumske pumpe<\/h1>\n

Introduction<\/h2>\n

Balancing of high-speed rotors in vacuum pumps requires specialized equipment capable of maintaining accuracy under extreme operational conditions. To meet these requirements, dedicated balancing stands were developed in 2002 and 2009. These systems are designed for dynamic balancing of assembled turbine rotors at actual operational speeds ranging from 42,000 to 60,000 rpm, directly in their own bearing supports. The design objective was to achieve residual imbalance values in accordance with Class 1 accuracy as per GOST 22061-76, the Soviet balance quality standard (its modern international counterpart is ISO 21940-11, formerly ISO 1940-1).<\/p>\n

Strukturni dizajn i konfiguracija<\/h2>\n

Slika 1 prikazuje \u0161ematski raspored radnog stola za balansaciju na visokim brzinama koji se koristi za rotore vakuumskih pumpi.<\/p>\n

Slika 1 \u2013 Strukturni raspored radnog stola za balansaciju vakuumske pumpe na visokim brzinama:<\/strong>
1 \u2013 Kruta platforma
2 \u2013 Cilindri\u010dnih opruge za izolaciju vibracija
3 \u2013 Cilindri\u010dna monta\u017ena baza
4 \u2013 Balansirana vakuumska pumpa
5 \u2013 Za\u0161titni poklopac
6 \u2013 Senzor faznog ugla
7 \u2013 Senzor vibracija na poklopcu
8 \u2013 Senzor vibracije na postolju
9 \u2013 Mjerna i ra\u010dunska jedinica<\/p>\n

Postolja\u017e je izgra\u0111en na pravokutnoj platformi (1), podr\u017eanoj sa \u010detiri cilindri\u010dnih opruge (2), koje osiguravaju izolaciju od vibracija. Platforma je oja\u010dana uzdu\u017enim i popre\u010dnim ukrepama, \u010dime se posti\u017ee velika krutost uz minimalno optere\u0107enje. Ovo strukturno rje\u0161enje osigurava visoku osjetljivost na sile neuravnote\u017eenosti i sprje\u010dava rezonantne oscilacije u cijelom rasponu brzina pumpe tijekom balansiranja.<\/p>\n

Baza monta\u017ee (3) je kruto pri\u010dvr\u0161\u0107ena na platformu i slu\u017ei za precizno pozicioniranje pumpe (4). Pumpa je zatvorena sa namjenskim pokrovom (5), koji sadr\u017ei i senzor faznog kuta (6). Dva senzora vibracija (7 i 8) su montirana na pokrovu i bazi, respektivno. Svi senzori su spojeni na mjernu i ra\u010dunsku jedinicu (9), koja obavlja analizu u realnom vremenu i izra\u010dunava te\u017eine za ispravku.<\/p>\n

Balancing Procedure<\/h2>\n

Balansiranje se provodi u dva sekvencijalna stadija kako bi se osigurala preciznost za uvjete rigidnog i fleksibilnog rotora.<\/p>\n

Stadij 1 \u2013 Balansiranje rigidnog rotora<\/h3>\n

In the initial stage, the pump rotor is balanced at rotational speeds up to 8,000 rpm, where it behaves as a rigid body. The objective here is to compensate for both static and couple imbalances. In tests on this vibration-isolated stand, the system achieves residual vibration levels below 0.01 mm\/s RMS in the 3,500\u20138,000 rpm frequency range. This ultra-low reading is a stand-test result obtained under controlled conditions, not a typical field-measurement figure.<\/p>\n

Stadij 2 \u2013 Balansiranje fleksibilnog rotora na visokim brzinama<\/h3>\n

U drugoj fazi, balansiranje se obavlja na radnoj brzini rotora \u2014 ili 42.000 ili 60.000 o\/min, ovisno o modelu pumpe. Na ovoj brzini, rotor ulazi u fleksibilno stanje i trpi deformaciju, \u0161to vodi do dodatne dinami\u010dke neuravnote\u017eenosti. Kona\u010dna ispravka se izra\u010dunava i primjenjuje kako bi se minimizirali ti u\u010dinci. Rezidualna razina vibracije nakon brzoturnog balansiranja ne prema\u0161uje 0,3 mm\/s RMS, \u010dime se osigurava dugotrajno stabilno rukovanje pumpom.<\/p>\n

Karakteristike Performansi<\/h2>\n
    \n
  • \n

    Rezidualna vibracija (rigidna faza):<\/strong> \u2264 0.01 mm\/s (3,500\u20138,000 rpm, stand-test result)<\/p>\n<\/li>\n

  • \n

    Rezidualna vibracija (fleksibilna faza):<\/strong> \u2264 0,3 mm\/s (42.000\u201360.000 o\/min)<\/p>\n<\/li>\n

  • \n

    Total cycle time for balancing:<\/strong> Typically under 30 minutes<\/p>\n<\/li>\n<\/ul>\n

    Conclusion<\/h2>\n

    The high-speed balancing stand for vacuum pump rotors combines structural rigidity, precision measurement, and advanced computation. It enables accurate balancing under real operational conditions, compensating for both static and dynamic imbalances. The solution meets stringent vibration standards and significantly improves the reliability and service life of high-speed vacuum pump systems.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

    High-Speed Rotor Balancing Stand for Vacuum Pumps Introduction Balancing of high-speed rotors in vacuum pumps requires specialized equipment capable of maintaining accuracy under extreme operational conditions. To meet these requirements, dedicated balancing stands were developed in 2002 and 2009. These systems are designed for dynamic balancing of assembled turbine rotors […]<\/p>\n","protected":false},"author":2,"featured_media":1117,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ai_generated_summary":"","footnotes":""},"categories":[1,4,5],"tags":[51],"class_list":["post-1114","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","category-example","category-solutions","tag-vacuum-pumps-balancing-stand"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/posts\/1114","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/comments?post=1114"}],"version-history":[{"count":0,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/posts\/1114\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/media\/1117"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/media?parent=1114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/categories?post=1114"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/tags?post=1114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}