Txoj kev daws teeb meem rau Planetary Iav Reducers

Feem ntau, qhov hnyav ntawm lub planetary iav kis tau tus mob yog ncaj qha proportional rau qhov hnyav ntawm nws lub zog; Tsis tas li ntawd, iav hnyav hnyav yog nyob ntawm cov khoom siv iav thiab nws cov kev kho cua sov hardness. Piv txwv li, thaum xa tib lub zog, qhov hnyav ntawm lub iav carburized thiab quenched yog kwv yees li ib -feem peb ntawm cov iav uas tau dhau los tsuas yog quenching thiab tempering. Yog li ntawd, muab cov yam ntxwv ntawm cov yam ntxwv ntawm lub ntiaj teb iav reducers thiab qhov xwm txheej ntawm cov loads muab tso rau ntawm lawv lub zog, kev siv cov tawv tawv - deg iav yuav tsum tau siv dav. Muaj ntau txoj kev kho cua sov uas muaj rau kev tsim cov tawv tawv- cov iav saum npoo- xws li cov tawv tawv tawv, los ntawm - hardening, carburizing thiab quenching, thiab nitriding- thiab cov kev xaiv tshwj xeeb yuav tsum tau ua tib zoo xaiv raws li cov yam ntxwv tshwj xeeb ntawm lub ntiaj teb iav reducer hauv nqe lus nug.

1. Nto Hardening
Ob txoj hauv kev zoo tshaj plaws rau kev ua kom tawv tawv yog siab - zaus induction hardening (feem ntau yog siv rau cov iav me me) thiab nplaim taws tawv (feem ntau yog siv rau cov iav loj). Deg hardening yields qhov zoo tshaj plaws tshwm sim thaum lub hardened txheej txuas mus rau thiab muaj xws li cov hauv paus hniav ntawm iav hniav. Cov khoom siv feem ntau siv rau saum npoo tawv yog cov hlau uas muaj cov ntsiab lus carbon (los ntawm qhov loj) xws li kwv yees li 0.35% txog 0.5%; Cov txheej txheem no tso cai rau cov iav hniav nto hardness mus txog qib ntawm 45 thiab 55 HRC.

2. Carburizing thiab quenching
Carburized thiab quenched gears muab qhov siab tshaj plaws txheeb ze thauj khoom- nqa peev; Txawm li cas los xij, lawv yuav tsum muaj kev ua tiav tiav (xws li iav sib tsoo) kom tshem tawm cov cua sov-kev kho- ntxias deformation thiab xyuas kom meej qhov yuav tsum tau muaj qhov tseeb.
Carburized thiab quenched iav feem ntau siv cov hlau alloy nrog cov ntsiab lus ntawm 0.2% mus rau 0.3% ua ntej carburizing; Qhov tshwm sim saum npoo hardness ntawm cov iav hniav feem ntau ntog hauv thaj tsam ntawm 58 txog 62 HRC. Yog hais tias qhov saum npoo hardness poob qis dua 57 HRC, lub zog ntawm cov hniav yuav txo qis; conversely, yog hais tias nws ntau tshaj 62 HRC, cov khoom ntawm brittleness nce. Lub hardness ntawm cov iav hniav core feem ntau pom zoo nyob rau hauv thaj tsam ntawm 310 txog 330 HBW. Rau carburized thiab quenched zog, lub hardness yuav tsum maj mam txo los ntawm cov hniav nto mus rau sab hauv; "zoo carburizing qhov tob" yog txhais raws li qhov tob ntawm qhov chaw uas lub hardness ncav cuag 52.5 HRC.
Hais txog kev koom tes ntawm carburizing thiab quenching rau qhov khoov qaug zog lub zog ntawm cov hniav iav, cov txheej txheem tsis tsuas yog txhim kho lub hardness ntawm cov khoom tseem ceeb tab sis kuj induces residual compressive stresses nyob rau hauv lub nto txheej; cov residual stresses pab kom txo tau qhov loj ntawm tensile kev nyuaj siab nyob rau hauv lub tseem ceeb cheeb tsam ntawm lub siab tshaj plaws tensile kev nyuaj siab ntawm iav hniav. Yog li ntawd, thaum lub sij hawm sib tsoo cov txheej txheem, cov hniav hauv paus hniav yuav tsum tsis txhob nyob hauv av; yog li ntawd, thaum hobbing, lub hob tsim los tawm ntawm kev sib tsoo nyiaj yuav tsum tau siv.

3. Nitriding
Kev siv nitriding kom ntseeg tau tias cov hniav iav ua tiav qhov tawv tawv thiab hnav tsis kam nrog tsawg deformation. Txij li tsis muaj qhov ua tiav qhov kawg yuav tsum tau ua tiav tom qab qhov kev kho cua sov no, lub load- nqa lub peev xwm tau txhim kho. Qhov no tuav qhov tseem ceeb tshwj xeeb rau cov iav sab hauv, uas yog qhov nyuaj rau zom.

4. Hardness Combinations rau Mating Gears
Thaum ob lub zog loj thiab me me ua rau cov hniav mos, qhov tawv tawv ntawm cov iav me me yuav tsum siab dua li cov iav loj. Hloov pauv, thaum ob lub zog muaj qhov nyuaj ntawm cov hniav-tshwj xeeb tshaj yog nyob rau theem siab hardness- qhov nyuaj ntawm ob lub zog yuav tsum tau teeb tsa kom zoo ib yam.
Xaiv cov ntaub ntawv tsim nyog rau lub planetary iav reducer yog qhov tseem ceeb hauv kev txhim kho ob qho tib si thauj khoom - nqa lub peev xwm thiab lub neej kev pab cuam ntawm lub iav reducer.