Menene ƙimar nauyi mai tsayayye da ƙimar nauyi mai tsauri na bearing?

 

Idan muka yi tambaya game dahalisamfurin, sau da yawa muna ganin zaɓuɓɓuka biyu, Cr da Cor, Cr yana nufin nauyin motsi na bearing, Cor yana nufin nauyin motsi na bearing. To menene ƙimar nauyi mai tsauri da ƙimar nauyi mai ƙarfi na bearing? Menene alaƙa da bambanci tsakanin su biyun?

Sigogi uku na asali waɗanda galibi ake amfani da su wajen ƙirar bearings masu birgima sune: nauyin aiki mai ƙarfi na asali Cr (radial) ko Ca (axial) wanda ya cika buƙatun wani rayuwar gajiya; Ƙarfin aiki mai ƙarfi na asali Cor (radial) ko Coa (axial) wanda ya cika wasu buƙatun ƙarfi mai ƙarfi da kuma saurin ƙarshe No, wanda ke sarrafa lalacewa ta bearing.

 

Menenehaliƙimar kaya mai tsayayye?

 

Matsayin nauyi mai tsayayyen tsari na bearings (radial Cor, axial Coa) yana nufin nauyin radial na tunani ko nauyin axial na tsakiya wanda yayi daidai da matsakaicin nauyin bearings lokacin da wani matsin lamba ya faru ta hanyar wani matsin lamba a cibiyar hulɗar abin birgima da hanyar tsere.

 

Ga bearings na radial, nauyin da aka ƙididdige yana nufin nauyin radial, don bearings na radial (bearings na kusurwa) yana nufin ɓangaren radial na nauyin da ke loda hanyar tsere a cikin rabin zobe na bearings, kuma ga bearings na pressure, yana nufin nauyin axial na tsakiya.

 

Wato, ƙimar nauyin radial basic static load da ƙimar nauyin axial basic static load na bearing suna nufin matsakaicin nauyin da bearing zai iya ɗauka lokacin da yake tsaye ko juyawa.

 

Ana ƙididdige ƙarfin ɗaukar nauyin bearings na ƙwallon rami mai zurfi a lokacin tsayawa ko juyawa a hankali (gudun n≤10r/min) a matsayin nauyin da ba ya canzawa.

 

Menenehaliƙimar nauyi mai ƙarfi?

 

Matsayin nauyin bearing dynamic yana nufin: bearing mai birgima zai iya ɗaukar nauyin radial akai-akai (nauyin axial akai-akai), a ƙarƙashin aikin rayuwar asali mai ƙimar 100W rpm, nauyin ƙarfin bearing na asali mai ƙimar yana nuna ikon bearing na tsayayya da gajiyar birgima. Matsayin nauyin ƙarfin bearing na asali mai ƙarfi na bearing radial da bearing thrust kuma an san shi da ƙimar nauyin radial basic dynamic load da nauyin ƙarfin axial basic dynamic load, waɗanda Cr da Ca ke bayyana su.

 

Ƙarfin ɗaukar nauyin bearings na ƙwallo yayin juyawa (gudun n> 10r/mim) shine babban nauyin da aka ƙididdige.

 

Me yasa nauyin ƙarfin bearing ɗin da aka ƙima ya fi nauyin da aka ƙima?

 

Nauyin motsi mai ƙima yana nufin nauyin da ke kan bearing lokacin da rayuwar da aka kimanta ta kai rpm miliyan 1. Nauyin da aka kimanta yana nufin hulɗar da ke tsakanin abin birgima da hanyar tseren zobe wadda ta fi ɗaukar nauyi lokacin da bearing ɗin ya huta, kuma jimlar nakasuwar dindindin na abin birgima da hanyar tseren zobe shine 1/10,000 na diamita na abin birgima.

 

Akwai wata alaƙa tsakanin rayuwar sabis na ɗaukar kaya da kuma nauyin da aka kimanta na ɗaukar kaya, to a wane yanayi ne muke zaɓar ɗaukar kaya bisa ga nauyin da aka kimanta na ɗaukar kaya? Manyan abubuwan sune kamar haka:

 

Lura: A wasu lokuta, ya kamata a zaɓi girman bearing ta hanyar ƙimar nauyi mai tsauri (wanda aka ayyana a matsayin Co don sauƙin bayani) maimakon tsawon lokacin bearing.

 

1. A ƙarƙashin aikin nauyin tasirin ci gaba ko na lokaci-lokaci, ɗaukar nauyin yana tsayawa.

 

2. A ƙarƙashin nauyin, bearing ɗin yana yin juyawar juyawa a hankali ko motsi mai daidaitawa kawai.

 

3. A ƙarƙashin nauyin, saurin ɗaukar nauyin yana da ƙasa sosai (ƙasa da juyawa 10 a minti ɗaya) kuma yana buƙatar ɗan gajeren lokaci kawai. Musamman ma, a wannan yanayin, ga wani nau'in nauyin da aka bayar daidai da P, ƙimar nauyin da ake buƙata na asali C yana da ƙasa sosai bisa ga dabarar rayuwa, don haka za a iya ɗaukar nauyin da aka zaɓa a aikace.

 

4. Baya ga nauyin aiki na yau da kullun, yana buƙatar ɗaukar nauyin tasiri mai nauyi, kuma bearing ɗin yana juyawa.

 

A kowanne daga cikin waɗannan yanayi, nauyin da mai ɗaukar kaya zai iya jurewa ba ya dogara ne akan gajiyar kayan ba, amma akan matakin lalacewar hanyar tsere ta dindindin da nauyin ya haifar.