Gears feem ntau categorized ua tsib hom: spur gears, helical gears, ncig-arc gears, involute gears, thiab worm gears.
ISpur Gears
Spur gears yog ib qho ntawm ntau hom iav. Lawv yog cov yam ntxwv los ntawm ib tug ncaj hniav profile thiab ib tug cylindrical hniav nto. Lawv muaj kev sib kis tau zoo thiab tsis tshua muaj suab nrov, thiab nquag siv nyob rau hauv qis-rau nruab nrab-ceev kis tau tus mob, xws li cov uas pom nyob rau hauv ntau yam tshuab cuab yeej thiab marine khoom.
IHelical iav
Helical iav tsim lub hauv paus ntawm helical iav mechanisms. Tsis zoo li spur zog, lawv muaj cov hniav uas raug txiav ntawm lub kaum sab xis (helical) txheeb ze rau lub axis ntawm kev sib hloov. Paub txog lawv lub peev xwm los xa cov hluav taws xob siab thiab txhawb nqa hnyav, lawv tau siv ntau yam kev kub ceev, lub luag haujlwm hnyav, xws li tsheb sib txawv.
Circular-Arc Gears
Circular-arc iav yog txhais los ntawm cov duab nkhaus ntawm lawv cov hniav profile-tshwj xeeb, ib qho arc-shaped profile. Lawv ua tau zoo rau cov kab ke sib kis uas xav tau cov iav loj loj; lawv ua haujlwm zoo thaum muaj peev xwm tuav lub zog loj.
Involute Gears
Involute gears yog ib hom ntawm high-speed iav. Lawv cov hniav profiles ua raws li ib qho kev nkhaus, uas pab txo qis kev sib cuag ntawm cov hniav. Qhov kev tsim no txo cov suab nrov thiab kev vibration thaum lub sijhawm ua haujlwm siab, ua rau lawv zoo tagnrho rau ntau hom khoom siv hluav taws xob thiab cov tshuab ua haujlwm siab.
Worm Gears
Worm iav yog iav mechanisms tsim rau cov ntawv thov uas muaj kev hloov pauv loj hauv lub kaum sab xis ntawm lub zog xa mus. Lawv yog tus cwj pwm los ntawm kev ua haujlwm zoo rau kev tsav tsheb rov qab (rov qab) thiab feem ntau yog siv nyob rau hauv qis-ceev, high-power kis tau tus mob, xws li cov uas pom nyob rau hauv hnyav-duty industrial khoom thiab machinery.
Hauv cov ntsiab lus, ntau hom iav yog haum rau cov kev siv sib txawv ntawm cov khoom siv sib txawv, txhua tus muaj peev xwm ua tau raws li cov kev xav tau tshwj xeeb thiab cov hom phiaj ua haujlwm. Yog li ntawd, thaum tsim los yog xaiv cov iav, nws yog ib qho tseem ceeb uas yuav tau xaiv hom tsim nyog raws li cov kev xav tau tshwj xeeb thiab cov kev xav tau ntawm cov tshuab.