
Gear Rack Pitch
ISO (International Organization for Standardization) qhia tias chav tsev sawv cev rau lub iav loj siv modulus. Txawm li cas los xij, lwm txoj hauv kev yog siv los sawv cev qhov loj ntawm lub iav.
Modulusrau iav khib pitch
Modulus M=1 (P=3.1416) Modulus M=2 (P=6.2832) Modulus M=4 (P=12.566) )
Lub iav khib pitch (P) tuaj yeem tau txais los ntawm kev muab cov modulus los ntawm PI. Pitch yog qhov ntev ntawm ob cov hniav uas nyob ib sab. P=Pi x modulus (π m)
CP (Lub Limtiam Festival)
Circumferential iav khib pitch yog lub voj voog ncig. Ntawd yog, suab (P). Piv txwv li, ib lub iav nrog lub suab ntawm cp5cp10cp15cp20 tuaj yeem ua los ntawm kev siv lub voj voog ncig CP.
Hloov kev sib raug zoo nrog modulus M=CP /π DP (nruab nrab)
Nws yog hu ua diameter pitch in English.
Raws li ISO tus qauv, chav tsev ntawm qhov ntev yog mm. Txawm li cas los xij, hauv Tebchaws Meskas, Tebchaws Askiv thiab lwm lub tebchaws, ntiv tes tau siv los ua qhov ntev. Hauv cov tebchaws no, DP yog siv los sawv cev qhov loj ntawm lub iav.
Hloov kev sib raug zoo nrog modulus M=25.4/dp
"Modulus" yog hais txog qhov piv (m, t / π) nruab nrab ntawm tus hniav pitch t thiab pi ntawm tib sab hniav profiles ntawm ob lub zog uas nyob ib sab, hauv mm. Module yog ib qho ntawm cov tsis tseem ceeb tshaj plaws ntawm modular iav hniav. Qhov loj dua qhov module, qhov siab dua thiab tuab cov iav hniav. Yog hais tias tus naj npawb ntawm cov hniav ntawm lub iav yog tsau, qhov loj dua qhov radial dimension ntawm lub iav. Modular series cov qauv yog tsim raws li qhov yuav tsum tau ua ntawm kev tsim, tsim thiab tshuaj xyuas. Rau cov iav nrog cov hniav tsis ncaj, lub module muaj qhov sib txawv ntawm qhov qub module mn, qhov kawg lub ntsej muag module ms thiab axial module x. Lawv tag nrho raws li qhov sib piv ntawm lawv cov hniav pitch (cov hniav ib txwm, qhov kawg ntsej muag ntawm cov hniav thiab cov hniav axial) rau qhov ncig, thiab hauv millimeters. Rau bevel iav, lub module yuav muab faib ua loj kawg module kuv, nruab nrab module mm thiab me kawg module ml. Rau cov cuab yeej, muaj cov cuab yeej sib xws modulus mo, thiab lwm yam.
Standard modules yog dav siv.
Standard modulus yog qhov tseem ceeb tshaj plaws tsis nyob rau hauv metric iav tsav, worm tsav, synchronous siv tsav, ratchet, iav coupling, spline thiab lwm yam. Nws plays lub luag hauj lwm ntawm cov tsis muaj nyob rau hauv tus tsim, tsim thiab txij nkawm ntawm cov saum toj no qhov chaw (saib cylindrical iav tsav, worm tsav, thiab lwm yam).

















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