nkhani

Mabearning Oyenda Mozungulira Oyenda Mochepa

 

Kakang'onomabearing ozungulira opingasaamagwiritsidwa ntchito kwambiri mu ma turntable a zida zamakina, zida zachipatala, manja a robotic, ndi zida zozungulira za zida zozindikira chifukwa cha kukula kwawo kochepa, kukhazikika bwino pakugwira ntchito, kulondola kwambiri kozungulira, komanso kulimba kwambiri. Zigawo zamakina izi zimadziwika ndi ntchito zoyambira pafupipafupi; chifukwa chake, kuphunzira mawonekedwe a torque yakukangana kwa ma bearings a miniature crossed roller ndikofunikira kwambiri.

 

Kapangidwe ka Kapangidwe ka Kakang'onoMabearing Ozungulira Ozungulira

Maberiya ang'onoang'ono ozungulira okhala ndi magawo awiri ofanana a mphete yakunja, mphete yamkati, ma rollers, ndi khola logwirizana. Magawo awiri a mphete yakunja amalumikizidwa ndi zomangira, ndipo ma rollers amalekanitsidwa ndi matumba a khola. Chifukwa ma rollers oyandikana nawo amakonzedwa mopingasa, ma beriyars ang'onoang'ono ozungulira amatha kupirira katundu wa axial, katundu wa radial, ndi nthawi zotembenuza. Pakugwira ntchito, mphete yakunja imakhazikika, ndipo mphete yamkati imazungulira.

 

Makhalidwe a Torque Yokangana ya MiniatureMabearing Ozungulira Ozungulira

 

1) Mphamvu yokangana ya kamphindi kakang'onomabearing ozungulira opingasaKuwonjezeka kwa liwiro lozungulira komanso nthawi yozungulira. Mu ntchito za turntable zomwe zimayendetsedwa ndi nthawi yozungulira, mikhalidwe yogwirira ntchito iyenera kukhazikitsidwa moyenera kuti ichepetse chiopsezo cha kuchuluka kwa mphamvu yokangana ya bearing.

 

2) Pa radial clearance yomweyi, nthawi yochulukirapo yozungulira imabweretsa mphamvu yayikulu yolimbana ndi bearing frictional torque. Pamene radial clearance ikuwonjezeka, mphamvu yolimbana ndi bearing frictional torque imayamba kuchepa, koma imakhazikika pamene radial clearance ikupitirira 5 μm. Poganizira kukhazikika kwa ntchito, tikukulimbikitsani kuti muwongolere radial clearance pakati pa 5 ndi 10 μm.

 

3) Kuchuluka kwa mtengo wa ngodya ya raceway kukakhala kwakukulu, kumabweretsa kuonekera kwakukulu kwa zotsatira za loading zomwe sizili pakati pa roller generatrix, zomwe zimapangitsa kuti pakhale kufalikira kwa mphamvu zosafanana komanso mphamvu yayikulu ya bearing frictional torque. Ndikofunikira kuwongolera kupotoka kwa ngodya ya raceway mkati mwa ±2′ ndi kupotoka kwa ngodya ya raceway mkati mwa ±1′ kuti muchepetse mphamvu ya bearing frictional torque.

 

4) Ma roller osinthidwa ndi logarithmically amapereka mphamvu yochepa yokangana pa nthawi zosiyanasiyana zozungulira. Komabe, pamene nthawi yozungulira ikuyandikira 400 N·m, kusiyana kwa mphamvu pakati pa ma roller ozungulira ndi osinthidwa ndi logarithmically pochepetsa mphamvu yokangana ndi bearing sikofunikira kwenikweni. Kuti muchepetse mphamvu yokangana, ma roller osinthidwa ndi logarithmically amalimbikitsidwa popanga ma bearing.

 

5) Mphamvu ya magawo a kapangidwe kamabearing ozungulira opingasaPa torque yokangana, kuyambira yayikulu mpaka yaying'ono, ndi motere: clearance ya radial, inner raceway angle deviation, upper outer ring raceway angle deviation, ndi lower outer ring raceway angle deviation. Chifukwa chake, clearance ya radial ya ma cross roller bearing iyenera kuyendetsedwa kaye, kutsatiridwa ndi raceway angle deviation, makamaka inner raceway angle deviation, kuti iwonjezere frictional torque ya bearing.