Khib thiab pinion iav tuaj yeem raug cais raws li cov hniav profile, iav duab, cov hniav kab, qhov chaw ntawm cov hniav, thiab kev tsim khoom.
Cov hniav profile ntawm lub khib thiab pinion iav suav nrog cov hniav profile nkhaus, lub kaum sab xis siab, qhov siab ntawm cov hniav, thiab kev hloov kho. Involute gears yog qhov yooj yim rau kev tsim khoom, yog li lawv suav rau feem ntau ntawm cov iav siv hauv cov ntawv siv niaj hnub no, thaum lub zog cycloidal thiab cov voj voog ncig arc tsis tshua muaj.
Hais txog lub kaum sab xis, lub zog nrog lub kaum sab xis me me muaj peev xwm qis dua - bearing peev; thaum lub zog nrog lub kaum sab xis loj, txawm hais tias muaj kev thauj khoom ntau dua - cov kabmob muaj peev xwm, nce lub nra ntawm cov kabmob rau tib lub zog sib kis, thiab yog li tsuas yog siv rau hauv cov xwm txheej tshwj xeeb. Gear tooth heights yog standardized, thiab standard tooth heights feem ntau yog siv. Hloov cov iav muaj ntau qhov zoo thiab tau siv dav hauv ntau hom khoom siv tshuab.
Tsis tas li ntawd, racks thiab pinion gears tuaj yeem raug faib raws li lawv cov duab (cylindrical gears, bevel gears, non{0}}circular gears, racks, worm gears, etc.); raws li tus hniav kab duab (spur iav, helical iav, herringbone iav, nkhaus iav); raws li qhov chaw uas cov hniav nyob (sab nraud zog, sab hauv zog); thiab raws li txoj kev tsim khoom (cam khwb cia iav, txiav iav, dov iav, sintered iav, thiab lwm yam).
Cov ntaub ntawv tsim khoom thiab cov txheej txheem kho cua sov ntawm khib thiab pinion iav muaj qhov cuam tshuam loj rau lawv cov load-cov kabmob muaj peev xwm, qhov loj me, thiab qhov hnyav. Ua ntej xyoo 1950, cov iav feem ntau yog ua los ntawm cov hlau; nyob rau xyoo 1960, alloy steel tau siv; thiab nyob rau xyoo 1970, saum npoo- cov hlau tawv tau siv feem ntau. Raws li hardness, tus hniav nto tuaj yeem muab faib ua cov hniav mos thiab tawv.
Cov iav uas muaj cov hniav mos muaj qhov qis dua- cov kabmob muaj peev xwm tab sis yooj yim dua los tsim thiab ua haujlwm tau zoo dua- hauv kev ua haujlwm. Lawv feem ntau siv nyob rau hauv cov tshuab dav dav uas kis loj thiab qhov hnyav tsis nruj me ntsis, thiab hauv me me -batch ntau lawm. Vim hais tias tus pinion bears hnyav dua nyob rau hauv ib khub ntawm lub zog, lub hardness ntawm tus pinion tus hniav nto yog feem ntau siab dua li ntawm tus pinion los xyuas kom meej tias lub neej kev pab cuam ntawm lub loj thiab me zog yog roughly sib npaug.
Iav nrog cov hniav tawv tawv muaj qhov hnyav heev -cov kabmob muaj peev xwm. Lawv yog tsim los ntawm precision txiav ua raws li los ntawm quenching, nto hardening, los yog carburizing thiab quenching kom hardness. Txawm li cas los xij, deformation yog yam tsis muaj kev cuam tshuam thaum kho cua sov. Yog li ntawd, kev sib tsoo, lapping, lossis precision txiav yog qhov tsim nyog tom qab kev kho cua sov kom tshem tawm cov teeb meem tshwm sim los ntawm deformation thiab txhim kho cov iav qhov tseeb.
