Axial yarda na bearing

 

Abin da ake kira halisharewa yana nufin adadin motsi lokacin dahaliba a sanya shi a cikin shaft ko wurin ɗaukar kaya ba, yana gyara gefe ɗaya na zoben ciki ko zoben waje, sannan yana sa gefen da ba a gyara ba ya motsa a radial ko axial. Dangane da alkiblar motsi, ana iya raba shi zuwa radial clearance da axial clearance.

Girman wurin da aka yi amfani da shi (wanda ake kira wurin aiki) yayin aiki yana da tasiri ga tsawon lokacin gajiya, ƙaruwar zafin jiki, hayaniya, girgiza da sauran halayen wurin da aka yi amfani da shi.

Lokacin auna sararin da ke kewaye da bear, shine abin da ake kira clearance na bearing, wanda ke nufin adadin motsi lokacin da ba a sanya bearing a cikin shaft ko gidan bearing ba, yana gyara gefe ɗaya na zoben ciki ko zoben waje, sannan yana sa gefen da ba a gyara ba ya motsa a radial ko axial. Dangane da alkiblar motsi, ana iya raba shi zuwa radial clearance da axial clearance.

Girman wurin da aka yi amfani da shi (wanda ake kira wurin aiki) yayin aiki yana da tasiri ga tsawon lokacin gajiya, ƙaruwar zafin jiki, hayaniya, girgiza da sauran halayen wurin da aka yi amfani da shi.

Lokacin auna nisa na wanihali, ana amfani da takamaiman nauyin aunawa akan bearing don samun ƙimar da aka auna mai ɗorewa.

Sakamakon haka, ƙimar da aka auna ta fi girma fiye da ainihin sharewa (wanda aka sani da sharewa ta ka'ida), wato adadin nakasar roba da aka samu sakamakon nauyin da aka auna ya ƙaru.

Duk da haka, a yanayin bearings na nadi, wannan nakasar roba ba ta da yawa saboda ƙarancin adadinta.

Gabaɗaya, izinin ciki na bearing kafin shigarwa yana bayyana ne ta hanyar izinin nazari.

Zaɓin izini

Ana kiran sharewa bayan an cire adadin faɗaɗawa ko matsewar zoben saboda tsangwama lokacin da aka ɗora bearing akan shaft ko a cikin gida daga sharewar ka'ida "sharewa mai hawa".

 

Ana kiran sharewa bayan ƙara ko cire bambancin girma saboda bambancin zafin jiki a cikin bearing "sharewa mai tasiri".

Ana shigar da bearing ɗin da wani sarari idan aka sanya shi a ƙarƙashin wani kaya ta hanyar injiniya, wato, ana ƙara ingantaccen sharewa zuwa ga nakasar roba da nauyin bearing ya haifar, don haka ana kiransa "clearance aiki".　

 

Idan an yi amfani da na'urar cirewa ta wucin gadi kaɗan, tsawon lokacin gajiyar bearing ɗin zai fi tsawo, amma tare da ƙaruwar na'urar cirewa ta wucin gadi, tsawon lokacin gajiyar yana raguwa sosai. Saboda haka, lokacin zaɓar na'urar cirewa ta wucin gadi, galibi ana ba da shawarar a sanya na'urar cirewa ta wucin gadi ta zama sifili ko kuma ɗan tabbatacce.

Bugu da ƙari, lokacin da ya zama dole a inganta taurin bearing ko rage hayaniya, ya kamata a ƙara rage ƙarfin bearing, kuma idan yanayin zafi na bearing ya yi tsanani, ya kamata a ƙara tabbatar da ingancin bearing, da sauransu, kuma dole ne a yi takamaiman bincike bisa ga yanayin amfani.

 

Manufar izinin shiga a cikin bearings na birgima

1. Tsarin farko

Ragewar a cikin yanayin 'yanci kafin ɗaukar kaya. Ana ƙayyade rabewar asali ta hanyar sarrafawa da haɗa masana'antar kera.

 

2. Shigar da izinin

Ana kuma kiransa da clearance na mating, wanda shine clearance lokacin da aka sanya bearing, shaft da bearing seat amma ba su yi aiki ba tukuna. Saboda shigarwar tsangwama, ko dai an faɗaɗa zoben ciki, an rage zoben waje, ko kuma duka biyun, clearance na shigarwa ya fi ƙanƙanta fiye da clearance na asali.

 

3. Tsarin aiki

Idan bearing ɗin yana cikin yanayin aiki, ƙaruwar zafin zoben ciki shine mafi girma, kuma faɗaɗawar zafi ita ce mafi girma, don haka an rage sharewar bearing; A lokaci guda, saboda nauyin, lalacewar roba tana faruwa a lokacin da aka haɗu tsakanin abin birgima da hanyar tsere, wanda ke ƙara sharewar bearing. Ko sharewar aiki na bearing ya fi girma ko ƙarami fiye da sharewar shigarwa ya dogara ne akan haɗin tasirin waɗannan abubuwan biyu.