Dab tsi yog Pawg Ntawm Gears?

Cov iav tuaj yeem raug cais raws li cov hniav zoo nkauj, iav duab, cov hniav kab, qhov chaw ntawm cov hniav iav, thiab kev tsim khoom.
Cov hniav zoo ntawm ib lub iav muaj xws li cov hniav profile nkhaus, lub kaum sab xis siab, qhov siab ntawm cov hniav, thiab kev txav chaw. Involute gears yog qhov yooj yim rau kev tsim khoom, yog li involute gears account rau feem ntau ntawm cov iav niaj hnub, thaum lub zog cycloidal thiab lub voj voog arc siv tsawg dua.
Nyob rau hauv cov nqe lus ntawm lub kaum sab xis siab, lub kaum sab xis me me muaj lub peev xwm me me load-bearing; thaum lub zog loj lub kaum sab xis, txawm hais tias lawv muaj peev xwm ua haujlwm ntau dua, ua rau kom lub nra ntawm cov kabmob thaum lub torque zoo ib yam, yog li lawv tsuas yog siv tshwj xeeb. Cov hniav qhov siab ntawm cov iav tau raug standardized, thiab tus qauv hniav qhov siab feem ntau yog siv. Kev tshem tawm cov iav muaj ntau qhov zoo thiab tau siv ntau hom khoom siv tshuab.
Tsis tas li ntawd, cov iav kuj tseem tuaj yeem muab faib ua cylindrical gears, bevel gears, non-circular gears, racks, thiab worm gears raws li lawv cov duab; lawv tuaj yeem muab faib ua spur gears, helical gears, herringbone gears, thiab nkhaus iav raws li cov duab ntawm cov hniav kab; lawv tuaj yeem muab faib ua cov iav sab nraud thiab cov iav sab hauv raws li qhov chaw uas cov iav hniav nyob; lawv tuaj yeem muab faib ua cov cam khwb cia, txiav iav, dov iav, sintered iav, thiab lwm yam raws li txoj kev tsim khoom.
Cov khoom tsim thiab cov txheej txheem kev kho cua sov ntawm cov iav muaj qhov cuam tshuam zoo rau lub peev xwm thauj khoom, qhov loj thiab qhov hnyav ntawm lub zog. Ua ntej xyoo 1950, lub zog feem ntau yog ua los ntawm cov hlau, hlau alloy tau siv rau xyoo 1960, thiab cov hlau tawv tawv tau siv rau xyoo 1970. Raws li hardness, tus hniav nto tuaj yeem muab faib ua ob hom: cov hniav mos thiab cov hniav tawv.
Iav nrog cov hniav mos nto muaj peev xwm ua tau qis dua, tab sis yooj yim dua los tsim thiab muaj kev ua haujlwm zoo. Lawv feem ntau yog siv rau hauv cov tshuab dav dav uas tsis muaj kev txwv nruj ntawm kev sib kis loj thiab qhov hnyav, thiab cov khoom me me. Vim tias lub log me me muaj qhov hnyav dua nyob rau hauv qhov sib koom ua ke, txhawm rau ua kom lub neej ua haujlwm ntawm lub zog loj thiab me me sib npaug, qhov nyuaj ntawm lub log me me hniav feem ntau siab dua li ntawm lub log loj.
Gears nrog tawv hniav nto muaj peev xwm load-bearing. Lawv yog quenched, nto hardened los yog carburized thiab quenched tom qab lub iav yog nplua-txiav kom lub hardness. Txawm li cas los xij, thaum kev kho cua sov, cov iav yuav inevitably deform, yog li kev sib tsoo, kev sib tsoo lossis kev txiav zoo yuav tsum tau ua tom qab kev kho cua sov kom tshem tawm qhov yuam kev los ntawm deformation thiab txhim kho qhov tseeb ntawm cov iav.