Timagwiritsa ntchito ma bear 200 tsiku lililonse pamoyo wathu. Zasintha moyo wathu. Tsopano asayansi akuperekanso ubongo wanzeru, kuti uzitha kuganiza ndi kulankhula. Mwanjira iyi, chifukwa cha kulondola kwa njanji yothamanga kwambiri, anthu amathanso kumvetsetsa mawonekedwe onse a mayendedwe popanda kukonza. Ndi chitukuko chofulumira cha sayansi ndi luso lamakono, kupanikizika kwa ma bere kumakula kwambiri, ndipo zofunikira za khalidwe zidzakhalanso zapamwamba.
Lingaliro ndi gulu la kugudubuza mayendedwe
Ma bereti ogudubuza wamba nthawi zambiri amakhala ndi zinthu zofunika monga mphete ziwiri (monga mphete yamkati, mphete yakunja), zopindika ndi makola.
Ntchito Zinayi za Rolling Bearings
Mphete yamkati nthawi zambiri imakhala yolimba kwambiri ndi shaft ndipo imazungulira ndi shaft.
Mphete yakunja nthawi zambiri imagwirizana ndi dzenje la mpando kapena chipolopolo cha gawo lamakina kuti lithandizire.
Zinthu zogubuduza zimakonzedwa mofanana pakati pa mphete zamkati ndi zakunja mothandizidwa ndi khola, ndipo mawonekedwe ake a mzere, kukula kwake ndi kuchuluka kwake zimatsimikizira mwachindunji mphamvu yonyamula katundu.
Kholalo limalekanitsa mofanana zinthu zogudubuza ndikuwongolera zinthu zogudubuza kuti ziyende panjira yoyenera.
"Trust needle roller bearings"
Zimbalangondo zolekanitsidwa zimapangidwa ndi mphete zojambulira, zodzigudubuza za singano ndi zomangira za khola, ndipo zimatha kuphatikizidwa ndi mphete zoonda zapamsewu (W) kapena mphete zodula (WS). Ma fani osasiyanitsidwa ndi ma fani ophatikizika omwe amapangidwa ndi mphete zodinda bwino, zodzigudubuza za singano ndi zomangira khola. Mtundu woterewu umatha kupirira katundu wa unidirectional axial. Zimatenga malo ang'onoang'ono ndipo zimagwirizana ndi kapangidwe ka makina. Ambiri a iwo okha ntchito singano wodzigudubuza ndi khola zigawo zikuluzikulu, ndi ntchito pamwamba pa kutsinde ndi nyumba monga mpikisano pamwamba.
Kunyamula kotereku kumakhala ndi ma rollers a truncated, omwe amatsogoleredwa ndi nthiti zazikulu za mphete yamkati. M'mapangidwe, ma vertices a conical surfaces a mkati mwa mphete yamtundu wamtundu wamtundu wamtundu wamtundu wamtundu wamtundu wakunja, mphete yakunja yothamanga pamwamba ndi yodzigudubuza imadutsa pamtunda pa mzere wapakati. Mizere ya mzere umodzi imatha kunyamula katundu wa radial ndi njira imodzi ya axial, ndipo mizere ya mizere iwiri imatha kunyamula katundu wa radial ndi njira ziwiri za axial, ndipo ndi yoyenera kunyamula katundu wolemetsa ndi katundu wokhudzidwa.
"Cylindrical Roller Bearings"
Zilonda za cylindrical roller zitha kugawidwa m'mizere imodzi, mizere iwiri ndi mizere yambiri yama cylindrical roller malinga ndi kuchuluka kwa mizere ya zinthu zogubuduza zomwe zimagwiritsidwa ntchito ponyamula. Pakati pawo, mizere imodzi yokha ya cylindrical roller yokhala ndi makola imagwiritsidwa ntchito kwambiri. Kuphatikiza apo, pali ma cylindrical roller bearings okhala ndi zida zina monga mzere umodzi kapena mizere iwiri yokwanira yokwanira.
Mzere umodzi wa cylindrical roller bearings amagawidwa mu mtundu wa N, mtundu wa NU, mtundu wa NJ, mtundu wa NF ndi mtundu wa NUP malinga ndi nthiti zosiyanasiyana za mphete. Ma cylindrical roller bearings ali ndi mphamvu yayikulu yonyamula ma radial, ndipo amathanso kunyamula katundu wina wanjira imodzi kapena ziwiri molingana ndi kapangidwe ka nthiti ya mphete. Mtundu wa NN ndi mitundu ya NNU ya mizere iwiri ya cylindrical roller bearings ndi yophatikizika, yolimba molimba, yayikulu yonyamulira komanso yopindika yaying'ono ikapakidwa, ndipo imagwiritsidwa ntchito kwambiri pothandizira masipiko a zida zamakina. FC, FCD, FCDP mtundu wa mizere inayi yodzigudubuza yozungulira imatha kupirira katundu waukulu wa radial, ndipo imagwiritsidwa ntchito kwambiri pamakina olemera monga mphero zogudubuza.
Mtundu woterewu umakhala ndi zodzigudubuza zozungulira pakati pa mphete yakunja ya msewu wozungulira komanso mphete yamkati yanjira yapawiri. Malinga ndi mapangidwe amkati osiyanasiyana, amagawidwa m'mitundu inayi: R, RH, RHA ndi SR. Popeza malo a arc amtundu wakunja wa mphete amagwirizana ndi malo oberekera, ali ndi machitidwe odzigwirizanitsa okha, kotero amatha kusintha kusintha kwa shaft chifukwa cha kupotoza kapena kusokonezeka kwa shaft kapena nyumba. Imatha kunyamula katundu wa radial ndi bidirectional axial load. Makamaka, mphamvu yonyamula ma radial ndi yayikulu, ndipo ndiyoyenera kunyamula katundu wolemetsa komanso kugwedezeka. Metal processing WeChat, zomwe zili ndi zabwino, ndizoyenera kuziganizira. Ma bere okhala ndi tapered amatha kusonkhanitsidwa ndikumangidwa pamtengowo pogwiritsa ntchito zomangira kapena manja ochotsa. Ma fani ozungulira ozungulira amatha kunyamula katundu wokulirapo, komanso amatha kunyamula katundu wina wa axial. Msewu wakunja wa mphete wamtundu woterewu ndi wozungulira, choncho umakhala ndi machitidwe odzigwirizanitsa okha. Pamene tsinde likugwedezeka kapena kugwedezeka pansi pa mphamvu, kotero kuti kupendekera kwapakati kwa mphete yamkati ndi mzere wapakati wa mphete yakunja sikudutsa 1 ° ~ 2.5 °, kubereka kungagwirebe ntchito. .
Ma thrust roller bearings amaphatikizapo mayendedwe ozungulira ozungulira, mayendedwe odzigudubuza a cylindrical roller ndi ma thrust tapered roller bearings. Mapiritsi ozungulira ozungulira amatha kunyamula katundu wa axial ndi ma radial, koma katundu wa radial sayenera kupitirira 55% ya katundu wa axial. Chinthu chinanso chofunika kwambiri cha mtundu uwu wa kunyamula ndikudzigwirizanitsa, zomwe zimapangitsa kuti zisasokonezedwe molakwika ndi kupotoza kwa shaft. Ingonyamulani P ndi P. Osapitirira 0.05C, ndipo mphete ya shaft imazungulira, kunyamula kumalola mtundu wina wa ngodya yodzigwirizanitsa. Makhalidwe ang'onoang'ono ndi oyenera mayendedwe akulu, ndipo mawonekedwe ovomerezeka amatsika pomwe katundu ukuwonjezeka.
"Spherical Bearings"
Insert spherical bearings amagwiritsidwa ntchito makamaka pamapulogalamu omwe amafunikira zida zosavuta ndi zinthu zina, monga makina aulimi, machitidwe oyendera kapena makina omanga.
Angular kukhudzana mpira mayendedwe akhoza kunyamula katundu radial ndi axial katundu pa nthawi yomweyo, komanso akhoza kunyamula koyera axial katundu, ndipo malire liwiro ndi mkulu. Kukhoza kwa mtundu uwu wa kunyamula katundu wa axial kumatsimikiziridwa ndi mbali yolumikizana. Kukula kolumikizana ndi ngodya, kumapangitsanso kuthekera konyamula katundu wa axial.
Nthawi yotumiza: Jan-25-2022