nkhani

Mitundu ya ma bearing osavuta

 

Kusiyana pakati pa shaft ndichogwiriraimakhudzana ndi pamwamba, komwe kumatchedwa kuti plain bearing. Imagwiritsidwa ntchito kwambiri chifukwa ndi kukhudzana ndi pamwamba komwe kumatha kupirira mphamvu zazikulu zakunja, sikugwedezeka, komanso ili ndi kapangidwe kosavuta. Mwachitsanzo, malo olumikizirana osunthika a Excavator's Monster Hand.

 

Maberani otsetserekamphamvu zitha kugawidwa m'magulu atatu malinga ndi momwe mphamvu imagwirira ntchito, zomwe ndi:

 

1. Zoyatsira zozungulira zotsetsereka

Mphamvu ya ma radial plain bearing imayang'ana molunjika ku central axis, yomwe ingagawidwe m'mitundu itatu malinga ndi mawonekedwe ake:

 

1) Chogwirira Chophatikiza: Chogwirira Chophatikiza Cholumikizira ndi chogwirira cholumikizira cholumikizira cholumikizira cholumikizira, chomwe chimalumikizidwa ndi chimango ndi mabolts. Kupanikizika kwamkati kwa chibowo cha mpando wolumikizira, chikho chamafuta chimayikidwa pamwamba pa nyumba yolumikizira, dzenje lolowera mafuta lili pa chigoba cha shaft, ndipo pamwamba pake pamakhala chogwirira (kapena chigoba cha shaft) chopangidwa ndi zinthu zotsutsana ndi kukangana kuti chitsegule groove yamafuta a axial kuti igawire mafuta odzola.

 

2) Matching bearing: Mtundu uwu wa matching ndi wosavuta kuyika ndikuchotsa, ndipo mtengo wake ndi wotsika, ndipo umagwiritsidwa ntchito kwambiri pamakina. Mwachitsanzo, matching bearing pa ma crank a mitundu yosiyanasiyana ya injini zoyaka mkati

 

3) Bearing ya magawo anayi: yomwe imadziwikanso kuti bearing ya magawo anayi, yomwe imagwiritsidwa ntchito m'magalimoto akuluakulu, monga ma vibration engine, ma vibration engine ndi ma spindle bearing ena.

 

Zipangizo za ma bearing osavuta nthawi zambiri zimakhala chitsulo chopangidwa ndi ...

 

2. Kutsetsereka kwa chitsulo chopondereza

 

Katundu wa chogwirira chosavuta chogwirira ntchito amafanana ndi njira ya axial, yomwe sikuti imangothandiza kuzungulira kwa makinawo, komanso imaletsa kuyenda motsatira mzere. Ikhoza kugawidwa m'mitundu inayi:

 

1) Chifaniziro cha mphete: chagawidwa m'magulu awa:

 

(1) Chogwirira cha mphete imodzi: Chogwirira cha mphete imodzi, chomwe chingathe kupirira kugwedezeka kwa axial mbali zonse ziwiri.

 

(2) Chogwirira cha ma thrust cha multi-ring: Mtundu uwu wa shaft ukhoza kunyamula ma axial thrust mbali zonse ziwiri, liwiro lapamwamba komanso katundu wolemera.

 

2) Kalasi yonyamulira: yomwe imadziwikanso kuti pivot bearing, ndi sliding thrust bearing yomwe imayikidwa kumapeto kwa shaft, kotero imatchedwanso base column thrust bearing.

 

3) Hydrodynamic lubrication thrust bearing: pamwamba pa striking pakati pa shaft ndi bearing imapangidwa kukhala pamwamba penipeni kapena block yokhotakhota. Gawo la hydrodynamic oil limapangidwa pamwamba pa malo aliwonse okhotakhota kapena block yokhotakhota kuti shaft isakhudze bearing.

 

4) Hydrostatic bearing: Pamene katundu wa gawo la bearing ndi waukulu kwambiri, sizingatheke kukhazikitsa filimu ya mafuta poyambitsa static, kotero hydrostatic bearing iyenera kugwiritsidwa ntchito. Madzi (mafuta) amakakamizidwa ndi pampu ndikutumizidwa pakati pa magawo awiriwa kuti asunge mafuta panthawi yogwira ntchito. Chifukwa madziwo amaperekedwa ndi dziko lakunja, amatchedwanso external pressure bearing. Ngati kuthamanga kwa mafuta a pampu kusinthidwa kukhala air pressure, kumatchedwa hydrostatic air bearing.

 

3. Ma berea otsetsereka apadera

 

1) Bearing yokhala ndi mabowo: yomwe imadziwikanso kuti bearing yodzazidwa ndi mafuta, imasweka pogwiritsa ntchito njira ya ufa wa metallurgy cracking. Nthawi zambiri imakhala yoyenera ma radial bearing okhala ndi katundu wopepuka.

 

2)Maberiyani opanda mafuta: okhala ndi kukana bwino kuvala, oyenera makina opepuka komanso osadetsa chakudya, monga maberiyani a Nelong.