Cov iav tuaj yeem raug cais raws li cov hniav zoo nkauj, iav duab, cov kab hniav zoo nkauj, qhov chaw ntawm cov hniav iav, thiab kev tsim khoom.
Cov hniav profile ntawm 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 yooj yim dua rau kev tsim khoom, yog li nyob rau hauv niaj hnub iav, involute gears account rau feem ntau, thaum cycloid gears thiab arc gears tsis tshua siv.
Nyob rau hauv cov nqe lus ntawm lub kaum sab xis siab, lub zog nrog lub kaum sab xis me me muaj qhov qis dua - nqa lub peev xwm; gears nrog lub siab loj lub kaum sab xis muaj ntau dua load- bearing muaj peev xwm, tab sis lub load ntawm cov kabmob nce thaum lub kis tau tus mob torque zoo ib yam, yog li nws tsuas yog siv nyob rau hauv tshwj xeeb mob. Cov hniav qhov siab ntawm cov iav tau raug standardized, thiab tus qauv hniav qhov siab feem ntau yog saws. Muaj ntau qhov zoo ntawm cov khoom siv hloov pauv, uas tau siv rau txhua yam khoom siv tshuab.
Tsis tas li ntawd, cov iav kuj tseem tuaj yeem muab faib ua cylindrical gears, bevel iav, tsis yog -cov iav voj voog, racks, thiab cab iav raws li lawv cov duab; Raws li cov qauv ntawm cov hniav kab, lawv tuaj yeem muab faib ua cov iav spur, helical iav, herringbone gears, thiab nkhaus iav; Qhov saum npoo tau muab faib ua cov iav sab nraud thiab cov iav sab hauv; Raws li txoj kev tsim khoom, nws tuaj yeem muab faib ua cov cam khwb cia, txiav iav, dov iav, thiab sintered iav.
Cov khoom tsim thiab cov txheej txheem kev kho cua sov ntawm cov iav muaj kev cuam tshuam zoo rau cov khoom thauj -cov kabmob muaj peev xwm thiab qhov loj thiab qhov hnyav ntawm cov iav. Ua ntej xyoo 1950, carbon steel feem ntau yog siv rau lub zog, alloy steel tau siv nyob rau xyoo 1960, thiab cov ntaub ntawv 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.
Cov iav uas muaj cov hniav mos muaj qhov tsis tshua muaj load-cov kabmob muaj peev xwm, tab sis lawv yooj yim dua los tsim thiab ua haujlwm tau zoo- hauv kev ua haujlwm. 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 me me - ntim ntau lawm. Vim hais tias lub log me me muaj lub nra hnyav ntawm cov khoom sib tw, txhawm rau ua kom lub neej ua haujlwm ntawm lub zog loj thiab me me sib npaug, qhov nyuaj ntawm cov hniav ntawm lub log me feem ntau siab dua li ntawm lub log loj.
Cov iav tawv tawv muaj lub siab ua haujlwm siab -cov kabmob muaj peev xwm. Tom qab cov iav raug txiav, lawv raug quenched, nto quenched los yog carburized thiab quenched kom lub hardness. Tab sis nyob rau hauv kev kho cua sov, lub iav yuav inevitably deformed, yog li tom qab kev kho cua sov, kev sib tsoo, kev sib tsoo los yog nplua txiav yuav tsum tau nqa tawm kom tshem tawm qhov yuam kev los ntawm lub deformation thiab txhim kho qhov tseeb ntawm cov iav.
