xov xwm

Txoj kev taw qhia raug xaiv raws li daim ntawv qhia kev coj tus kheej

Lub tawb stamping yog coj los ntawm ib qho khoom dov

Lub tawb stamping yog lub teeb hauv qhov hnyav, nruab nrab hauv lub zog, me me hauv lub sijhawm ntawm inertia, thiab yooj yim rau tsav thiab coj. Tsis tas li ntawd, lub tawb stamping muaj qhov me me ntawm qhov seem, uas tuaj yeem ua rau txoj kev roj lubricating du; Thaum roj lubrication, nws yooj yim rau roj sab hauv ntawmkev coj uathiab muaj qhov chaw khaws roj loj dua, uas yog qhov zoo rau kev ua kom ntseeg tau thiab txuas ntxiv lub voj voog tsis tas yuav saib xyuas lossis lub neej ntev ntawm cov kabmob. Txawm li cas los xij, lub tawb stamping muaj qhov tsis muaj zog thiab tsis tiv taus kev hnav nyob rau hauv cov xwm txheej xws li kev kub ceev, kev nrawm nrawm thiab kev qeeb, thiab kev hloov pauv kev taw qhia. Lub tawb stamping feem ntau yog siv rau cov khoom me me thiab nruab nrab.cov kabmobthiab hauv qab no, cov ntsiab lus dov; Kuj tseem muaj qee hom bearings uas tau coj los ntawm ferrules, xws li M-hom tawb ntawm cylindrical roller bearings ua tus qhia sab nraud.

 

Cov tawb yas khov kho thiab cov yas engineering raug coj los ntawm ferrules lossis cov khoom dov

Cov tawb khoom siv feem ntau yog siv rau hauv cov sijhawm muaj zog thiab cov kabmob loj, uas tuaj yeem ua rau muaj kev ua haujlwm ceev dua thiab qhov kub ua haujlwm piv rau cov tawb stamped, thiab tuaj yeem tiv taus cov khoom hnyav dua lossis cov khoom hnyav xws li kev co, kev poob siab, kev hloov pauv kev taw qhia, thiab kev thauj khoom hloov pauv, tab sis vim yog qhov loj dua, nws kuj xav tau lub zog rub ntau dua los tsav nws; Vim tias cov khoom siv muaj zog dua, nws tuaj yeem txuag qhov chaw hauv lub tawb, txo qhov sib nrug ntawm cov hnab tshos, nce tus lej ntawm cov khoom dov, thiab nce lub peev xwm thauj khoom. Siv cov tawb khoom siv tooj dag feem ntau ua piv txwv, nws muaj qhov zoo ntawm lub zog siab, "khub sib txhuam qis" nrog cov hlau ferrule, kev pheej hmoo me me ntawm "lo", cov yam ntxwv hnav zoo, tsawg dua kev puas tsuaj, tiv taus corrosion, yooj yim kom ntseeg tau tias qhov tseeb ua tiav, thiab kev ntseeg siab ntawm kev siv.

 

Piv nrog rau cov stamping thiab cov tawb khov kho, nws muaj lub teeb yuag (lub sijhawm me me ntawm inertia, qhov hloov pauv me me ntawm torque), lub zog zoo thiab elasticity (ntau cov khoom dov tuaj yeem thauj khoom, tuaj yeem rov qab mus rau lub xeev qub tom qab lub zog deformation), suab nrov qis (nrog rau kev co damping nyhuv), hloov kho rau qhov ceev ntawm kab swb (qhov chaw du, hnav tsis kam thiab cov chips abrasive yuav tsis ua rau muaj kuab paug thiab puas tsuaj rau cov roj lubricating zoo li cov hlau tawb abrasives). Nws muaj cov txiaj ntsig zoo xws li kev ua tau zoo ntawm ciam teb lubrication (kev sib txhuam tsawg, qhov kub qis nce, kev ua kom tus kheej lubrication) thiab kev nyab xeeb siab (txawm tias nws raug dov ua ib daim flake tom qab fragmentation, nws tuaj yeem txuas ntxiv ua haujlwm rau lub sijhawm luv luv yam tsis ua rau muaj kev puas tsuaj sai sai).

 

Cov tawb yas engineering uas feem ntau siv rau kev taw qhia cov ntsiab lus yog:

1) PA cage. PA66 cage pheej yig thiab muaj kev ua tau zoo heev, tab sis nws qhov kub thiab txias tsis kam thiab qhov ruaj khov tsis zoo, yog li nws nyuaj rau hloov kho rau kev taw qhia ntawm ferrules nrog kev sib txhuam ntau dua. Raws li "hloov kho dua tshiab" ntawm PA66 cage, PA46 cage muaj kev ua tau zoo dua hauv kev tiv thaiv kub, tiv thaiv roj, tiv thaiv hnav, tiv thaiv nkag, tiv thaiv qaug zog, thiab lwm yam, thiab tau siv zoo hauvcov kabmobxws li lub tsheb AC cav, gearboxes, cua txias compressors, thiab lwm yam.

 

2) PTFE tawb. PTFE yog lub npe hu ua "vaj ntxwv ntawm cov yas", uas muaj qhov sib txhuam coefficient tsawg tshaj plaws (cov khoom siv roj zoo tshaj plaws), qhov kub thiab txias tshaj plaws (-196 ~ 260 ° C), kev ua tau zoo tshaj plaws tiv thaiv kev laus, qhov nro ntawm qhov chaw me tshaj plaws yam tsis lo rau ib yam khoom, thiab yuav luag tsis muaj xeb los ntawm cov tshuaj reagents, yog li PTFE tawb yog qhov tsim nyog heev rau cov kabmob tiv taus corrosion, cov kabmob tsis muaj hlau nplaum, cov kabmob cav foob pob hluav taws, thiab lwm yam.

 

3) PPS tawb. PPS muaj qhov nyuaj siab thiab qhov nruj heev, uas tsis tshua muaj nyob rau hauv cov yas engineering, tshwj xeeb tshaj yog thaum kub siab, nws tseem muaj kev ruaj khov tshuaj zoo (qhov thib ob tsuas yog PTFE), txawm tias nyob rau hauv ib puag ncig ntawm compressor roj, iav roj, ammonia refrigerant thiab lwm yam ib puag ncig, nws lub zog, hardness, rigidity, hnav tsis kam thiab lwm yam kev ua tau zoo tseem zoo heev, yog li PPS tawb tau siv zoo hauv cov bearings xws li high-speed compressors.

 

Cov yas engineering tawb feem ntau siv rau kev taw qhia ferrule yog:

 

1) Phenolic tawb, nrog cov khoom siv tsawg ntom, porous roj immersion thiab roj absorption, qis txhuam coefficient thiab lwm yam khoom zoo heev, yog qhov tsim nyog heev rau ferrule kev taw qhia thaum lub sijhawm ua haujlwm ceev ceev, yog "tus qauv" tawb ntawm high-speed precision bearings sawv cev los ntawm cov cuab yeej tshuab spindle bearings.

 

2) PEEK tawb, nrog rau kev sib xyaw ua ke zoo meej ntawm lub zog thiab elasticity, zoo heev kub tsis kam thiab swb kev sib txhuam yam ntxwv, zoo heev qaug zog tsis kam nyob rau hauv kev ntxhov siab hloov pauv (qhov zoo tshaj plaws hauv engineering plastics, sib piv rau cov ntaub ntawv alloy), thiab zoo dua dimensional stability (txhaj tshuaj molding shrinkage tus nqi me me, yog li qhov ua tiav qhov tseeb yog siab dua li ntawm cov engineering plastics dav dav, thiab qhov kub thiab txias hloov pauv muaj me ntsis cuam tshuam rau qhov loj ntawm cov khoom, yog li nws tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm kev siv siab). Hauv cov cuab yeej tshuab bearings, ultra-high speed bearings tsim rau roj thiab roj lubrication (DMN tus nqi txog li 3.0 × 106 mm · r / min) nrog qis kub nce thiab qis tsis rov ua dua run-out (NRRO), tshwj xeeb tshaj yog nyob rau hauv qhov xwm txheej ntawm micro lubrication.

 

3) PI tawb, nrog rau qhov zoo ntawm kev hnav tsis kam, kev siv lubrication tus kheej thiab lub zog siab, nws cov qauv porous yog siv dav hauv lub neej ntev spacecraft gyromots, navigators, momentum log thiab lwm yam bearings tom qab kev kho mob nqus tsev.

 

Cov kabmobntawm tib qhov loj me thiab qib kev kam rau siab muaj qhov cuam tshuam loj rau lawv qhov kev ua tau zoo thaum siv ntau hom tawb sib txawv: coj cov kabmob sib cuag lub pob ua piv txwv, qhov ceev kawg ntawm cov kabmob tawb khov kho tsuas yog ib nrab ntawm cov phenolic tawb bearings, thaum qhov ceev kawg ntawm cov kabmob stamped tawb bearings yog li 80% ntawm cov kabmob tawb khov kho.

 

Tig lub ferrule raws likev coj ua

thaum lub nplhaib sab hauv tig thiab lub nplhaib sab nraud tsis txav, lub nplhaib sab hauv yuav coj; Thaum lub nplhaib sab nraud tig thiab lub nplhaib sab hauv tsis txav, lub nplhaib sab nraud yuav coj; Thaum ob lub nplhaib sab hauv thiab sab nraud tig, lub cev dov yuav coj.

 

Qhov no yog vim qhov tseeb tias thaum lub nplhaib sab hauv tig, lub nplhaib sab hauv yog siv los coj, thiab kev sib txhuam ntawm lub nplhaib sab hauv flange thiab lub tawb yog lub zog tsav ntawm lub tawb; Kev sib txhuam tsim los ntawm lub nplhaib sab nraud coj ua rau lub tawb tsis kam. Thaum lub nplhaib sab nraud tig, yuav tsum siv lub nplhaib sab nraud. Thaum lub nplhaib sab hauv thiab sab nraud tig, nws yog qhov zoo dua los siv lub ntsiab lus dov los coj, thiab tib yam yog qhov tseeb.

 

Cov qauv saum toj no tsuas yog xav txog los ntawm qhov yooj yim ntawm kev sib txhuam, thiab kev xaiv yuav tsum tau xav txog tag nrho hauv kev siv tiag tiag. Piv txwv li, siv cov nplhaib sab hauv uas feem ntau tig thiab cov nplhaib sab nraud uas tsis txav chaw hauv kev siv tiag tiag: kev taw qhia ntawm cov nplhaib sab nraud feem ntau siv ntawm qhov ceev ceev, vim tias cov nplhaib sab nraud uas tsis txav chaw ruaj khov dua, thiab lwm yam zoo tshaj plaws uas tau hais los saum toj no; thaum ua haujlwm hnyav lossis lojcov kabmobfeem ntau yog coj los ntawm cov nplhaib sab hauv kom txo qhov pib torque thiab rotational torque ntawm lub tawb.

 

Raws li lub ferrule nrog flange

Thaum lub nplhaib sab nraud muaj flange, cov lus qhia ntawm lub nplhaib sab nraud (xws li NU hom cylindrical roller bearings); Thaum lub nplhaib sab hauv muaj flange, cov lus qhia ntawm lub nplhaib sab hauv (xws li N-hom cylindrical roller bearings); Ob lub ferrules muaj flanges, uas tau txiav txim siab raws li kev teeb tsa, kev ua haujlwm thiab kev saib xyuas ntawm cov kabmob. Kuj tseem muaj cov cylindrical roller bearings ultra-precision tsim los ntawm Schaeffler hauv lub tebchaws Yelemees raws li pom hauv Daim Duab 5, uas tsis siv ferrule flanges ua qhov chaw qhia. Vim tias qhov loj me ntawm txoj kab sib tw, qhov tseeb ntawm cov duab thiab qhov roughness ntawm qhov chaw yog qhov nruj dua li qhov yuav tsum tau ua ntawm ntug ferrule, qhov kev taw qhia ntawm lub tawb kuj yog qhov tseeb dua thiab du. Qhov kev taw qhia ntawm ferrule raceway yog siv los ua kom muaj pes tsawg tus rollers, uas yog, lub peev xwm ntawm cov kabmob, thiab qhov chaw ntawm lub tawb kuj tuaj yeem nyiam rau sab saum toj ntawm lub ntsiab lus dov (thaum lub nplhaib sab nraud raug coj) lossis hauv qab (thaum lub nplhaib sab hauv raug coj) kom ua tiav qhov kawg ntawm nws qhov ntev sab hauv thiab sab nraud.