Chilolezo cha Axial cha bere

 

Chotchedwa chogwirirachilolezo chimatanthauza kuchuluka kwa kayendetsedwe kake pamenechogwiriraSichimayikidwa mu shaft kapena bearing housing, chimakhazikitsa mbali imodzi ya mphete yamkati kapena mphete yakunja, kenako ndikupangitsa mbali yosakhazikika kusuntha mozungulira kapena mozungulira. Malinga ndi komwe mayendedwe akuyendera, ikhoza kugawidwa m'magawo awiri: radial clearance ndi axial clearance.

Kukula kwa malo olowera (otchedwa malo ogwirira ntchito) panthawi yogwira ntchito kumakhudza nthawi yogwira ntchito yotopa, kukwera kwa kutentha, phokoso, kugwedezeka ndi zina zomwe zili mu bearing.

Poyesa clearance ya bearing, ndi chomwe chimatchedwa bearing clearance, chomwe chimatanthauza kuchuluka kwa mayendedwe pamene bearing sinayikidwe mu shaft kapena bearing housing, ndikukhazikitsa mbali imodzi ya mphete yamkati kapena mphete yakunja, kenako ndikupangitsa mbali yosakhazikika kusuntha mozungulira kapena mozungulira. Malinga ndi komwe mayendedwe akuyendera, ikhoza kugawidwa m'magawo awiri: radial clearance ndi axial clearance.

Kukula kwa malo olowera (otchedwa malo ogwirira ntchito) panthawi yogwira ntchito kumakhudza nthawi yogwira ntchito yotopa, kukwera kwa kutentha, phokoso, kugwedezeka ndi zina zomwe zili mu bearing.

Poyesa malo olowera achogwirira, katundu woyezera wapadera nthawi zambiri umagwiritsidwa ntchito pa bearing kuti apeze mtengo woyezera wokhazikika.

Zotsatira zake, mtengo woyezedwawo ndi waukulu kuposa clearance yeniyeni (yomwe imadziwika kuti theoretical clearance), mwachitsanzo kuchuluka kwa elastic deformation chifukwa cha katundu woyezedwawo kumawonjezeka.

Komabe, pankhani ya ma roller bearing, kusinthaku kwa elastic sikungatheke chifukwa cha kuchuluka kwake kochepa.

Chilolezo chamkati cha chotengera chisanakhazikitsidwe nthawi zambiri chimafotokozedwa ngati chilolezo cha chiphunzitso.

Kusankha chilolezo

Chilolezo chochokera ku chipata cholowera pambuyo pochotsa kuchuluka kwa kufutukuka kapena kupindika kwa mphete chifukwa cha kusokonezeka komwe kumagwirizana pamene chipatacho chayikidwa pa shaft kapena m'nyumba kuchokera ku chipata cholowera chimatchedwa "chilolezo cholowera".

 

Chilolezo cholowera pambuyo powonjezera kapena kuchotsa kusiyana kwa kukula chifukwa cha kusiyana kwa kutentha mkati mwa bearing chimatchedwa "chilolezo chogwira ntchito".

Chotengeracho chimayikidwa ndi chilolezo chikayikidwa pansi pa katundu winawake mwamakina, ndiko kuti, chilolezo chogwira ntchito chimawonjezeredwa ku kusintha kwa elastic komwe kumachitika chifukwa cha katundu wonyamula, kotero chimatchedwa "ntchito yotseguka".　

 

Ngati malo ogwirira ntchito ali ndi mpweya woipa pang'ono, moyo wotopa wa bearing ndi wautali kwambiri, koma chifukwa cha kuchuluka kwa mpweya woipa, moyo wotopa umachepa kwambiri. Chifukwa chake, posankha malo ogwirira ntchito, nthawi zambiri ndibwino kuti malo ogwirira ntchito akhale zero kapena pang'ono.

Kuphatikiza apo, ngati pakufunika kukonza kulimba kwa bearing kapena kuchepetsa phokoso, malo ogwirira ntchito ayenera kukhala otsika kwambiri, ndipo kutentha kwa bearing kukakwera kwambiri, malo ogwirira ntchito ayenera kukhala abwino kwambiri, ndi zina zotero, ndipo kusanthula kwapadera kuyenera kupangidwa malinga ndi momwe zinthu zimagwiritsidwira ntchito.

 

Lingaliro la chilolezo mu mabearing ozungulira

1. Chilolezo choyambirira

Kuchotsa chivundikirocho musanayambe kuyika chivundikirocho. Chivundikiro choyambirira chimatsimikiziridwa ndi kukonza ndi kusonkhanitsa fakitale yopanga.

 

2. Kukhazikitsa chilolezo

Imatchedwanso malo olumikizirana, omwe ndi malo olumikizirana pamene bearing, shaft ndi bearing seat zimayikidwa koma sizinagwire ntchito. Chifukwa cha kusokonezana kwa kuyika, mphete yamkati imakulitsidwa, mphete yakunja imachepetsedwa, kapena zonse ziwiri, malo olumikizirana ndi ochepa kuposa malo oyambira.

 

3. Chilolezo cha ntchito

Pamene bearing ili mu mkhalidwe wogwirira ntchito, kutentha kwa mphete yamkati kumakhala kwakukulu kwambiri, ndipo kufalikira kwa kutentha kumakhala kwakukulu kwambiri, kotero kuti bearing clearance imachepa; Nthawi yomweyo, chifukwa cha katundu, kusintha kwa elastic kumachitika pakukhudzana pakati pa chinthu chozungulira ndi raceway, zomwe zimawonjezera bearing clearance. Kaya bearing clearance yogwirira ntchito ndi yayikulu kapena yaying'ono kuposa bearing clearance yoyika zimadalira zotsatira za zinthu ziwirizi.