Kupanga kugwedezeka mu mabearing Kawirikawiri, mabearing ozungulira okha sapanga phokoso. "Phokoso la bearing" lomwe nthawi zambiri limamveka kwenikweni ndi phokoso la bearing lomwe limagwedezeka mwachindunji kapena mwanjira ina ndi kapangidwe kozungulira. Ichi ndichifukwa chake nthawi zambiri vuto la phokoso limatha kuonedwa ngati vuto la kugwedezeka lomwe limakhudza kugwiritsa ntchito bearing yonse.
(1) Kugwedezeka kosangalatsa komwe kumachitika chifukwa cha kusintha kwa chiwerengero cha zinthu zozungulira zodzaza: Pamene katundu wozungulira ukugwiritsidwa ntchito pa chogwirira china, chiwerengero cha zinthu zozungulira zomwe zimanyamula katunduyo chimasintha pang'ono panthawi yogwira ntchito, zomwe zimapangitsa kuti kupotoka kwa njira yolemetsa kusinthe. Kugwedezeka komwe kumachitika chifukwa cha izi sikungapeweke, koma kungachepe chifukwa cha kuyika axial preloading, komwe kumayikidwa pa zinthu zonse zozungulira (sikugwira ntchito pa ma bearing a cylindrical roller).
(2) Kuwonongeka pang'ono: chifukwa cha zolakwika pa ntchito kapena kukhazikitsa, gawo laling'ono la njira zoyendetsera mabearing ndi zinthu zozungulira zitha kuwonongeka. Pakugwira ntchito, kugubuduzika pa zigawo zozungulira mabearing zomwe zawonongeka kumapanga mafunde enieni. Kusanthula mafunde a kugwedezeka kumatha kuzindikira zigawo zozungulira mabearing zomwe zawonongeka. Mfundo imeneyi yagwiritsidwa ntchito pazida zowunikira momwe zinthu zilili kuti zizindikire kuwonongeka kwa mabearing. Kuti muwerenge mafunde a mabearing, chonde onani pulogalamu yowerengera "Bearing Frequency".
(3) Kulondola kwa zigawo zogwirizana: Ngati mphete yoberekera ikugwirizana kwambiri ndi mpando woberekera kapena shaft yoyendetsera, mphete yoberekera ikhoza kusokonekera pofananiza mawonekedwe a gawo lapafupi. Ngati yasokonekera, ikhoza kugwedezeka ikagwiritsidwa ntchito.
(4) Zoipitsa: Ngati zikuyenda pamalo oipitsidwa, zoipitsa zingalowe mu bearing ndikuphwanyidwa ndi zinthu zozungulira. Mlingo wa kugwedezeka komwe kumachitika kumadalira kuchuluka, kukula ndi kapangidwe ka tinthu tating'onoting'ono toipitsa. Ngakhale kuti sizipanga mawonekedwe wamba, phokoso losokoneza limatha kumveka.
Zomwe zimayambitsa phokoso lopangidwa ndi ma bearing ozungulira zimakhala zovuta kwambiri. Chimodzi ndi kuwonongeka kwa malo olumikizirana a mphete zamkati ndi zakunja za bearing. Chifukwa cha kuwonongeka kwamtunduwu, ubale wofanana pakati pa bearing ndi housing, ndi bearing ndi shaft umawonongeka, zomwe zimapangitsa kuti axis ipatuke pamalo oyenera, ndipo phokoso losazolowereka limachitika pamene shaft ikuyenda mwachangu kwambiri. Bearing ikatopa, chitsulo chomwe chili pamwamba pake chimatuluka, zomwe zidzawonjezeranso kuwala kwa radial kwa bearing ndikupanga phokoso losazolowereka. Kuphatikiza apo, mafuta osakwanira a bearing, kupanga kukangana kouma, ndi kusweka kwa bearing kungayambitse phokoso losazolowereka. Bearing ikatha ndi kumasuka, khola limamasuka ndi kuwonongeka, ndipo phokoso losazolowereka lidzapangidwanso.
Ma bearings ayenera kugwiritsidwa ntchito mosamala pa moyo watsiku ndi tsiku. Tiyeni tiwone zinthu zisanu ndi zinayi zomwe tiyenera kuziganizira.
1. Zigawo zomangirira mu chokolera zili ngati gulu la mpeni wosunthika. Nthawi zambiri ma rivets amapangidwa ndi madzi ozizira ndipo sayenera kutenthedwa panthawi yomangirira. Kutentha kumachepetsa mphamvu ya chinthucho. Pambuyo pomangirira, kumenyedwa kopanga kumagwiritsidwa ntchito kulimbitsa kulimba kwa tsamba ndi shaft ya mpeni.
2. Ziwalo zomwe zili pachiwopsezo, makamaka ma pin shaft, zidutswa zokanikiza, manja, ndi nyanga sizingasinthidwe ndikukonzedwa ndi batala wambiri panthawi yokonza, monga kugwiritsa ntchito zida zomwe zagwiritsidwa ntchito kwa nthawi yayitali kungapangitse kuti nthawi ya makina ena ifupikitsidwe.
3. Kukonza ma shaft popanda makina olinganiza. Pokonza ma shaft osiyanasiyana omwe amafunika kulinganiza, chogwirira cha thrust chingayikidwe kumapeto kwa shaft, chomangiriridwa pa nsagwada zitatu za lathe, ndipo kumapeto ena akhoza kuthandizidwa ndi pakati. Ngati lathe ndi lalifupi, pakati pake pangagwiritsidwe ntchito. Chimango chimamatira SKF bearing yomwe yaikidwa pa shaft kumapeto ena mpaka yolinganiza itakonzedwa. Koma polinganiza kulemera, gwiritsani ntchito zomangira kuti muzimange, ndipo yesetsani kuti musagwiritse ntchito welding yamagetsi kuti mulinganize kulemera.
4. Pakukonza, chifukwa cha mitundu yosiyanasiyana ya zipangizo zonyamulira, sikophweka kugula, ndipo zimatha kukonzedwa ndi zinyalala. Pakadali pano, zinyalala zambiri m'dziko lathu zimapangidwa ndi chitsulo cha kaboni cha 45#. Ngati pakufunika kuzimitsa ndi kutenthetsa, zingagwiritsidwe ntchito pakakhala zovuta. Mpweya wa okosijeni ndi nthaka zimatenthetsa zigawo zofunika kukhala zofiira ndi zakuda ndikuziyika m'madzi amchere, kutengera kufunikira kwake.
5. Mukakonza ziwalo za manja, kokani mzere wa mafuta mu dzenje la manja momwe mungathere. Chifukwa chakuti n'zovuta kwambiri kudzaza mafuta m'zigawo zina za chokolola, batala ndi mafuta olemera a injini zingagwiritsidwe ntchito pamene n'zovuta kudzaza mafuta, kupatulapo manja a nayiloni. Kumene manja a nayiloni amagwiritsidwa ntchito, ndibwino kuti musawasinthe ndi chitsulo chosungunuka, mkuwa kapena aluminiyamu, chifukwa manja a nayiloni amatha kupirira kugwedezeka kwinakwake ndipo sadzawonongeka.
6. Kukonza kiyi ndi njira ya kiyi pa pulley ya lamba ndi shaft kuyenera kuonetsetsa kuti kukula sikukusintha pasadakhale. Musawonjezere kukula kwa kiyi, apo ayi izi zingakhudze mphamvu ya shaft. Njira ya kiyi pa shaft ikhoza kukonzedwa ndi chodzaza chamagetsi ndikupukutidwa mosiyana ndi kiyi yakale. Njira ya kiyi, njira ya kiyi pa pulley ikhoza kukhazikitsidwa ndi njira ya sleeve (transition fit). Mukamaliza kukonza, gwiritsani ntchito countersunk screw kuti mugwire sleeve kuti mumange kiyi.
7. Konzani gawo la hydraulic la chokolola. Chotsani chogawa ndi valavu yochepetsera, ndipo gwiritsani ntchito pampu ya mpweya kuti mukanikize mapaipi. Mafuta a hydraulic ayenera kusefedwa ndi kutha mafuta a hydraulic akadzadzazidwanso. Kukonza kwa hydraulic assembly makamaka ndi chosindikizira. Ndi bwino kusintha chosindikizira mukachichotsa.
Nthawi yotumizira: Epulo-19-2021