Kev sib kis thiab kev hloov ntawm torque nyob rau hauv lub gearbox yog nqa tawm los ntawm lub zog ntawm ntau yam diameters.Lub zog ntawm lub gearbox yog sib sau ua ke nyob rau hauv lub thiaj li hu ua blocks - nyeem txog lub iav blocks ntawm lub thawv, lawv cov qauv thiab kev ua hauj lwm, raws li zoo raws li lawv cov txij nkawm thiab kho, nyob rau hauv tsab xov xwm.
Lub hom phiaj ntawm cov iav thaiv thiab lawv qhov chaw nyob rau hauv lub gearbox
Txawm hais tias muaj kev nce ntxiv ntawm kev sib kis tsis siv neeg, phau ntawv (lossis phau ntawv) kev sib kis tsis poob lawv qhov chaw thiab qhov tseeb.Yog vim li cas rau qhov no yog qhov yooj yim - phau ntawv kis tau yooj yim hauv kev tsim, txhim khu kev qha thiab muab sijhawm txaus rau kev tsav tsheb.Thiab tsis tas li ntawd, cov thawv ntim khoom siv tau yooj yim dua los kho thiab tswj.
Raws li koj paub, nyob rau hauv phau ntawv kis tau tus mob, shafts nrog gears ntawm ntau yam diameters yog siv los hloov lub torque, uas muaj peev xwm koom nrog ib leeg.Thaum hloov lub zog, ib lossis lwm lub zog sib koom ua ke, thiab nyob ntawm qhov sib piv ntawm lawv txoj kab uas hla (thiab tus naj npawb ntawm cov hniav), torque tuaj rau lub axles ntawm lub tsheb hloov.Tus naj npawb ntawm cov iav hauv phau ntawv gearbox ntawm lub tsheb thiab cov tsheb thauj khoom tuaj yeem nyob ntawm plaub (hauv qub 3-ceev gearboxes) mus rau xya (nyob rau hauv niaj hnub loj 6-ceev gearboxes), nrog rau ib qho ntawm cov khub siv los koom nrog rov qab iav.Nyob rau hauv lub thawv ntawm tsheb laij teb thiab ntau lub tshuab ntawm cov tshuab tshwj xeeb, tus naj npawb ntawm cov khub ntawm lub zog tuaj yeem ncav cuag ib lub kaum lossis ntau dua.
Cov iav hauv lub thawv yog nyob ntawm cov ncej (dawb lossis nruj, qhov no tau piav qhia hauv qab no), thiab txhawm rau txhim kho kev ntseeg tau thiab ua kom yooj yim rau kev tsim, qee lub zog tau sib sau ua ke rau hauv ib qho qauv - ib qho thaiv ntawm lub zog.
Lub gearbox iav thaiv yog ib qho qauv ntawm 2 lossis ntau lub zog uas tig ntawm tib lub voj voog nrawm thaum lub sijhawm ua haujlwm ntawm lub thawv.Kev sib xyaw cov iav rau hauv cov blocks yog ua rau ntau yam:
- Kev yooj yim ntawm kev tsim lub thawv nrog txo tus naj npawb ntawm cov khoom siv.Txij li thaum ib lub iav yuav tsum muab nws tus kheej fasteners thiab tsav tsheb, kev sib txuas rau hauv ib qho thaiv ua rau cov khoom sib cais rau txhua lub iav tsis tsim nyog;
- txhim kho kev tsim khoom ntawm kev tsim cov khoom siv gearbox;
- Txhim kho qhov kev ntseeg siab ntawm kev sib kis (dua los ntawm kev txo cov khoom siv thiab ua kom yooj yim rau kev tsim).
Txawm li cas los xij, cov iav thaiv muaj ib qho tsis zoo: yog tias ib qho ntawm cov iav tawg, koj yuav tsum hloov tag nrho cov thaiv.Tau kawg, qhov no nce tus nqi kho, tab sis qhov kev daws teeb meem zoo li no tau them ntau zaus rau cov laj thawj tau piav qhia saum toj no.
Cia peb xav txog ntau yam ntawm cov hom uas twb muaj lawm thiab tsim cov yam ntxwv ntawm phau ntawv kis tau tus mob gear blocks.
Hom thiab tsim nta ntawm iav thaiv
Iav blocks tuaj yeem muab faib ua pawg raws li kev siv tau thiab lub hom phiaj:
- Nruab nrab ncej iav thaiv;
- Tsav (secondary) ncej iav thaiv;
- Rov qab iav thaiv.
Nyob rau hauv cov ntaub ntawv no, tus tsav (thawj) ncej feem ntau yog ua nyob rau tib lub sij hawm nrog lub iav, thiaj li hais tias ib tug cais iav thaiv tsis sawv tawm nyob rau hauv nws.
KP intermediate shafts tuaj yeem muab faib ua ob hom raws li kev tsim cov iav thaiv:
- Khoom - iav thiab ncej tsim ib qho tag nrho;
- Typesetting - iav blocks thiab ncej yog cov khoom ywj pheej, sib sau ua ke rau hauv ib qho qauv.
Nyob rau hauv thawj rooj plaub, lub ncej thiab lub zog yog ua los ntawm tib lub workpiece, yog li ntawd lawv yog ib qho tsis sib cais.Xws li shafts yog cov feem ntau, raws li lawv muaj cov qauv yooj yim tshaj plaws thiab tus nqi qis.Nyob rau hauv rooj plaub thib ob, tus qauv yog sib sau ua ke los ntawm ib tug ncej thiab ob los yog peb los yog ntau dua iav blocks tsau rau nws.Tab sis nyob rau hauv txhua rooj plaub, lub iav thaiv ntawm lub countershaft tig tag nrho.
Tsav (secondary) shafts tsuas yog ntaus ntawv, thiab cov iav thaiv tuaj yeem tig tau ywj pheej ntawm cov ncej - lawv tau kho nrog kev pab ntawm cov couplings nkaus xwb thaum lub sijhawm hloov ntawm ib lub iav tshwj xeeb.Vim yog cov qauv tsim ntawm phau ntawv kis tau tus mob, cov ncej uas tau tsav tsis muaj ntau tshaj 2 lub zog, thiab feem ntau cov no yog cov iav ntawm cov iav kaw.Piv txwv li, lub zog ntawm 1st thiab 2nd, 3rd thiab 4th gears, nrog rau 2nd thiab 3rd gears (yog tias lub iav ntawm 1st iav nyob sib cais), thiab lwm yam, tuaj yeem ua ke rau hauv cov blocks.Nyob rau tib lub sijhawm, nyob rau hauv lub tsheb 5-ceev phau ntawv kis tau tus mob, lub iav ntawm 5th theem yog ua nyias, txij li thaum 4 lub iav feem ntau yog ncaj thiab thaum nws tig rau, lub nruab nrab ncej yog "tua" los ntawm lub gearbox (hauv. Cov ntaub ntawv no, lub torque ntws los ncaj qha los ntawm tus tsav ncej ntawm tus qhev).
Rov qab iav units ib txwm muaj tsuas yog ob lub zog, ib qho ntawm cov khoom siv nrog cov iav tshwj xeeb countershaft thiab qhov thib ob nrog lub iav thib ob.Raws li qhov tshwm sim ntawm qhov kev sib txuas no, lub zog torque ntws rov qab thiab lub tsheb tuaj yeem thim rov qab.
Tag nrho cov gearbox iav blocks muaj cov qauv tsim zoo ib yam - lawv yog machined los ntawm ib leeg steel billet, thiab tsuas yog qee qhov muaj cov ntsiab lus ntxiv rau fastening rau ncej los yog koom nrog couplings, nrog rau kev txhim kho bearings.Lub gearbox siv ob qho tib si helical iav thiab cov pa spur iav.Hauv cov thawv niaj hnub, helical iav yog siv ntau dua, uas tsim kom muaj suab nrov qis thaum lub sijhawm ua haujlwm.Txawm li cas los xij, lub zog rov qab yog feem ntau ua spur, vim tias lawv ua haujlwm ntawm qhov nrawm thiab lub suab nrov tsis tseem ceeb rau lawv.Nyob rau hauv ib tug qub-style phau ntawv kis tau tus mob, tag nrho los yog yuav luag tag nrho cov zog yog spur.
Iav blocks yog ua los ntawm qee qib ntawm cov hlau, vim tias lawv muaj kev thauj khoom loj heev thaum ua haujlwm.Tsis tas li ntawd, structurally, iav blocks yog qhov loj thiab loj qhov chaw uas ua tiav nrog kev poob siab thiab lwm yam khoom siv, nrog rau thermal loads.Txawm li cas los xij, txawm li cas los xij, cov iav thaiv yuav tsum tau kho ib ntus lossis hloov pauv.
Teeb meem ntawm kev kho thiab hloov cov iav thaiv
Iav blocks ua haujlwm nyob rau hauv cov xwm txheej nyuaj, yog li ntau yam ua haujlwm tsis zoo tuaj yeem tshwm sim hauv lawv lub sijhawm.Ua ntej ntawm tag nrho cov, cov iav yog tus cwj pwm los ntawm cov hniav hnav, uas, hauv txoj cai, tsis tuaj yeem tiv thaiv.Nrog kev ua haujlwm zoo ntawm lub tsheb, kev hnav ntawm cov iav thaiv tsis dhau hnyav, yog li lawv tuaj yeem ua haujlwm tau ntau xyoo, thiab kev hloov ntawm cov khoom no vim hnav tsis tshua muaj.
Feem ntau, yog vim li cas rau kev hloov cov iav yog lawv deformation, tawg, tawg thiab chipping ntawm cov hniav, los yog ua tiav kev puas tsuaj (uas feem ntau tshwm sim thaum khiav lub gearbox nrog crumbled hniav).Tag nrho cov malfunctions no yog manifested los ntawm muaj zog gearbox suab nrov, cov tsos ntawm extraneous suab, sib tsoo los yog crunching thaum lub sij hawm ua hauj lwm thiab gearing, raws li zoo raws li tsis zoo ua hauj lwm ntawm lub gearbox nyob rau hauv ib los yog ntau lub zog.Nyob rau hauv txhua rooj plaub, lub gearbox yuav tsum tau kho thiab lub iav thaiv yuav tsum tau hloov.Peb yuav tsis xav txog cov txheej txheem rau kev kho qhov no, vim nws nyob ntawm hom thiab qauv ntawm lub thawv, cov lus piav qhia tag nrho tuaj yeem pom hauv cov lus qhia rau kev saib xyuas thiab kho lub tsheb.
Txhawm rau txuas ntxiv kev pab cuam lub neej ntawm cov iav thaiv thiab tag nrho lub thawv, kev tu ncua ntawm kev sib kis yuav tsum tau ua, nrog rau ua tib zoo thiab ua haujlwm zoo ntawm lub tsheb - kom raug qhib thiab tawm lub zog, tsav ntawm qhov zoo tshaj plaws rau cov xwm txheej tam sim no, thiab lwm yam. .
Post lub sij hawm: Aug-27-2023