Ib txoj haujlwm axis tuaj yeem siv lub servo lub cev muaj zog thiab lub tshuab ua haujlwm nruj, tseem tsis tau ua tiav qhov yuav tsum tau ua dua lossis qhov zoo ntawm qhov chaw. Feem ntau, qhov kev txwv yog los ntawm cov neeg kho tshuab kis tau tus mob ntawm lub cev muaj zog thiab lub platform txav.
A pob ntsia hlauconverts rotary motion rau hauv tswj linear zog los ntawm dov kev sib cuag ntawm cov ntsia hlau ncej, pob thiab txiv ntseej. Nws qhov kev ua tau zoo, txawm li cas los xij, nyob ntawm ntau ntau dua li qhov muaj cov khoom siv rov ua dua tshiab. Lead raug, axial clearance, preload, rigidity, kev them nyiaj yug bearings, installation alignment thiab lubrication tag nrho cuam tshuam rau qhov kawg positioning tshwm sim.
Kev nkag siab txog cov xwm txheej no pab cov engineers xaiv lub pob ntsia hlau ua ib feem ntawm kev ua tiav cov lus tsa suab es tsis yog kho txoj kab uas hla thiab cov hlau lead raws li qhov kev xaiv tsuas yog.
Yuav ua li cas lub pob ntsia hlau xa cov lus tsa suab
Helical grooves yog tsim rau ntawm cov ntsia hlau ncej thiab hauv cov txiv ntoo. Cov pob khoom thauj mus los ntawm cov grooves no thiab hloov lub zog los ntawm kev sib cuag dov. Thaum cov ntsia hlau los yog txiv ntseej tig, lwm cov khoom txav axially raws li cov ntsia hlau txhuas. Lub kaw lus xa rov qab ua kom cov khoom rov qab mus rau hauv qhov chaw thauj khoom kom muaj kev txav mus tas li.
Txoj kev sib raug zoo ntawm kev sib hloov ceev thiab linear ceev yog:
v=n × Ph / 60
Qhov twgvyog linear ceev hauv mm/s,nyog rotational ceev hauv r/min thiabPhyog ntsia hlau lead hauv mm.
Piv txwv li, 10 mm lead pob ntsia hlau rotating ntawm 1,500 r / min ua rau theoretical linear ceev ntawm 250 mm / s. Qhov tseeb axis kev ua tau zoo yuav tsum suav nrog kev nrawm, thauj khoom, sib txhuam, ntsia hlau deformation thiab tswj- qhov system teeb tsa.
Rolling Contact thiab Transmission Efficiency
Pa zawv zawg screws tsim kev sib txhuam ntawm zawv zawg qhov chaw. Hauv lub pob ntsia hlau, dov cov ntsiab lus txo qhov kev sib txhuam no. Raws li kev ua haujlwm tsim nyog, pob ntsia hlau kis tau zoo tuaj yeem ncav cuag kwv yees li 90% lossis siab dua, txawm hais tias tus nqi tiag tiag nyob ntawm lub kaum ntse ntse, preload, lubrication, seals, ceev thiab thauj khoom.
Kev sib txhuam qis txo qis lub cev muaj zog torque yuav tsum tau txav mus rau ib qho khoom thauj thiab txwv kev tsim hluav taws xob thaum rov ua haujlwm. Nws tseem ua kom nrawm nrawm thiab nquag hloov pauv kev ua tau zoo dua. Txawm li cas los xij, kev ua haujlwm siab txhais tau hais tias qee lub pob ntsia hlau tuaj yeem rov qab tau - tsav los ntawm kev thauj khoom axial sab nraud. Yog li ntawd, lub nres lossis lwm yam cuab yeej tuav yuav tsim nyog ntawm txoj kab ntsug.
Cov thev naus laus zis tseem ceeb tom qab Precision Transmission
| Technical yam | Dab tsi nws tswj | System- theem nyhuv |
|---|---|---|
| Lead raug | Qhov sib txawv ntawm kev hais kom mus ncig thiab kev mus ncig tiag tiag dhau ntawm kev mob stroke | Positioning raug thiab taug kev sib xws |
| Axial clearance | Dawb axial txav ntawm cov ntsia hlau thiab txiv ntoo | Poob tsab ntawv tsa suab thaum lub sij hawm tig rov qab |
| Preload | Internal loading siv los txo qhov clearance thiab nce rigidity | Reversal teb, nruj, kub thiab khiav torque |
| Axial rigidity | Resistance rau elastic displacement nyob rau hauv axial quab yuam | Load- txoj hauj lwm sib txawv thiab machining stability |
| Txhawb kev teeb tsa | Kev txwv ntawm lub tshuab machined kawg | Qhov tseem ceeb ceev, buckling muaj peev xwm thiab tag nrho axis rigidity |
| Lubrication thiab sealing | Cov xwm txheej ntawm qhov sib cuag ntawm qhov chaw dov | Hnav, kub, suab nrov thiab kev pab lub neej |
Lead Accuracy tsis zoo ib yam li Repeatability
Lead raug piav qhia txog qhov ze ntawm qhov kev mus ncig axial tiag tiag ua raws li kev mus ncig uas tau teev tseg dhau qhov kev ncua deb. Nws yog feem ntau muaj feem xyuam rau cov ntsia hlau raug raug thiab cov hlau lead sib txawv.
Repeatability piav qhia txog lub peev xwm ntawm ib qho axis kom rov qab mus rau tib txoj hauj lwm nyob rau hauv tib yam kev mob. Lub kaw lus tuaj yeem rov qab mus rau ib txoj haujlwm tsis tu ncua thaum tseem muaj qhov yuam kev mus ncig ntawm lwm txoj haujlwm. Repeatability yog cuam tshuam los ntawm clearance, preload, bearing rigidity, kub, servo tuning thiab tawm tswv yim daws teeb meem nrog rau cov ntsia hlau raug.
Vim li no, xaiv cov qib raug siab dua ib leeg tsis tuaj yeem tshem tawm txhua qhov kev ua yuam kev. Qhov yuav tsum tau mus txawv tebchaws raug thiab rov ua dua yuav tsum tau teev tseg nyias.
Preload, Clearance thiab Axial Rigidity
Thaum ib qho axis thim rov qab cov kev taw qhia, axial clearance tuaj yeem tshwm sim raws li cov lus tsa suab ploj ua ntej lub load pib txav mus rau qhov sib txawv. Preload yog siv los txo lossis tshem tawm qhov kev tshem tawm no thiab txhim kho kev sib cuag nruj ntawm cov txiv ntoo, cov pob thiab cov ntsia hlau grooves.
Preload tej zaum yuav tsim los ntawm ob - txiv ntseej kev npaj, offset - suab txiv ntoo los yog xaiv pob qhov ntev, nyob ntawm tus qauv tsim. Aob - txiv ntseej pob ntsia hlau, piv txwv li, tuaj yeem thov preload ntawm ob ntu ntawm cov txiv ntoo thiab feem ntau suav hais tias qhov twg qis axial clearance thiab siab dua rigidity yuav tsum tau.
Ntau preload tsis yog ib txwm zoo dua. Ntau dhau preload nce lub zog khiav, kev sib txhuam kub thiab kev sib cuag nrog kev ntxhov siab. Nws tuaj yeem txo qhov nrawm nrawm thiab ua kom lub neej ua haujlwm luv. Qhov tseeb preload theem yuav tsum phim lub load, lub luag hauj lwm voj voog, positioning yuav tsum tau thiab thermal tej yam kev mob.
Rigidity yuav tsum tau soj ntsuam raws li ib tug system
Tag nrho axial hloov chaw ntawm lub axis pub tsis yog txiav txim los ntawm cov txiv ntoo ib leeg. Cov ntsia hlau ncej stretches los yog compresses nyob rau hauv load, thaum lub txiv ntseej, kev txhawb nqa bearings, bearings vaj tse, coupling, mounting nto thiab tshuab ncej kuj deform.
Qhov tsis muaj zog tshaj plaws ntawm cov cuab yeej siv tshuab no tuaj yeem txwv tag nrho rigidity. Ua kom cov txiv ntoo ua ntej yuav ua rau muaj kev txhim kho tsawg yog tias lub hau ntswj dhau lawm, qhov ntev tsis txhawb nqa ntau dhau los yog cov kabmob vaj tse tsis muaj zog.
Kev nthuav dav cua kub kuj tseem yuav raug txiav txim siab ntawm qhov ntev lossis siab - nrawm nrawm. Thaum tshav kub kub generated los ntawm cov txiv ntseej, bearings thiab cov khoom uas nyob ib sab tuaj yeem hloov cov ntsia hlau ntev ntev. Nyob ntawm lub tshuab tsim, cov teebmeem thermal tuaj yeem tswj tau los ntawm lubrication, txias, bearing arrangement, kub them los yog ib tug tensioned ntsia hlau installation.
Txhawb Bearings thiab End Machining
Precision kev txhawb nqa bearings nrhiav cov ntsia hlau axially thiab pab tiv thaiv thrust nyob rau hauv ib los yog ob qho tib si cov lus qhia. Qhov kawg -kev txhawb nqa muaj feem cuam tshuam rau ncej rigidity, ceev ceev thiab tsis kam mus rau compressive buckling.
Cov kev npaj ib txwm muaj xws li kev teeb tsa-dawb, ruaj khov-txhawb thiab ruaj khov-tso kev teeb tsa. Tsau-dawb mounting yog qhov yooj yim tab sis muab qhov tseem ceeb qis dua -ceev thiab buckling muaj peev xwm. Tsau-txhawb thiab ruaj khov-kho cov kev npaj feem ntau tsim nyog raws li cov ntsia hlau ntev, kev sib hloov ceev lossis axial load nce.
End machining yuav tsum sib haum mus rau qhov xaiv bearing units, locknut, coupling thiab mounting qhov ntev. Cov kabmob tsis raug haum, lub xub pwg geometry lossis ncej- qhov kawg concentricity tuaj yeem qhia kev vibration thiab qhov chaw yuam kev txawm tias cov ntsia hlau nws tus kheej muaj qhov raug txaus.
Ceev txwv thiab Compressive Load
Lub pob ntsia hlau yuav tsum tsis txhob xaiv los ntawm kev nrawm nrawm ib leeg. Kev sib hloov ceev nce raws li qhov kev thov linear ceev nce lossis cov hlau lead txo. Ib tug ntev rotating ntsia hlau yuav mus txog nws qhov tseem ceeb ceev ceev thiab pib vibrate. Qhov tso cai khiav hauj lwm ceev kuj yog nyob ntawm cov ntsia hlau txoj kab uas hla, unsupported ntev, kawg -txhawb mob, txiv ntseej ncig tsim thiab lubrication.
Thaum cov ntsia hlau ncej raug compression, lub peev xwm buckling yuav tsum tau kuaj xyuas. Ib lub hauv paus me me thiab ntev tsis txhawb nqa kom txo tau qhov tso cai compressive load. Qhov tseem ceeb ceev thiab buckling xam yuav tsum muaj xws li ib tug tsim nyog kev nyab xeeb margin es tsis siv theoretical limiting qhov tseem ceeb raws li kev khiav hauj lwm tsis tu ncua.
Load Capacity thiab Service Life
Dynamic load rating yog siv thaum kwv yees lub neej qaug zog nyob rau hauv rov hais dua, thaum static load ntsuam xyuas muaj feem xyuam rau txoj kev pheej hmoo ntawm mus tas li deformation nyob rau hauv siab tshaj plaws los yog cuam tshuam load. Kev xaiv yuav tsum yog raws li lub voj voog ua haujlwm tiag tiag es tsis yog qhov siab tshaj plaws ntawm kev thauj khoom ib leeg.
Lub voj voog lub luag haujlwm muaj tseeb suav nrog kev nrawm nrawm, qhov tsis tu ncua -kev mus los nrawm, qeeb qeeb, lub sijhawm nyob thiab txhua yam kev hloov pauv hauv kev thauj khoom. Kev poob siab, kev vibration, kev sib raug zoo tsis zoo thiab kev sib kis tuaj yeem txo qhov kev ua neej nyob txawm tias qhov kev ntsuas ntsuas yooj yim zoo li txaus.
Lubrication, sealing thiab installation
Lubricant cais cov dov qhov chaw sib cuag, txo qhov hnav thiab pab tswj kev sib txhuam kub. Qhov tseeb lubricant hom thiab lub sijhawm ntxiv yog nyob ntawm qhov ceev, thauj khoom, mob stroke, kev ua haujlwm kub thiab ib puag ncig.
Wipers thiab cov ntsaws ruaj ruaj pab txwv tsis pub nkag ntawm cov plua plav thiab chips, tab sis lawv tsis hloov kev tiv thaiv sab nraud hauv qhov chaw muaj kab mob hnyav. Bellows, npog los yog kaw axis lug yuav tsum tau nyob ib ncig ntawm lub machining khib nyiab, abrasive hais los yog kua paug.
Installation alignment yog qhov tseem ceeb sib npaug. Kev quab yuam cov txiv ntoo los yog kev txhawb nqa bearings rau hauv txoj haujlwm tsis raug tsim ua qhov txawv txav sab hauv. Mounting nto yuav tsum huv si thiab tiaj tus, bearings vaj tse yuav tsum tau ua raws li cov ntsia hlau axis, thiab cov txiv ntseej yuav tsum tau txav mus los ntawm tag nrho cov hlab ntsha ua ntej zaum kawg nruj.
Yuav tsum thov
| Daim ntawv thov | Yam tseem ceeb | Cov ntsiab lus kom paub meej |
|---|---|---|
| CNC feed axis | Rigidity thiab positioning raug | Qib raug, preload, txiav load thiab bearing kev npaj |
| Cov khoom siv automation | Cycle speed thiab repeatability | Lead, acceleration, stroke, lub luag hauj lwm voj voog thiab lubrication |
| Cov cuab yeej tshuaj xyuas | Smooth motion thiab low position variation | Kev mus txawv tebchaws raug, thermal stability thiab kev txhim kho kev sib raug zoo |
| Vertical lifting axis | Load tuav thiab kev nyab xeeb | Buckling, rov qab - tsav tsheb, lub cev muaj zog nres thiab siab tshaj plaws axial load |
| Ntev -stroke axis | Tseem ceeb ceev thiab thermal cwj pwm | Hauv paus txoj kab uas hla, tsis muaj kev txhawb nqa ntev, kev txhawb nqa thiab kev khiav hauj lwm ceev |
Cov ntaub ntawv xav tau rau kev xaiv
Ua ntej lees paub lub pob ntsia hlau tshwj xeeb, npaj cov ntaub ntawv ua haujlwm hauv qab no:
- Yuav tsum tau stroke thiab tag nrho installation ntev
- Maximum thiab nruam linear ceev
- Acceleration, deceleration thiab voj voog zaus
- Tsiv huab hwm coj, sab nraud axial quab yuam thiab cuam tshuam load
- Yuav tsum tau positioning raug thiab repeatability
- Kab rov tav, ntsug lossis inclined installation
- Lub neej kev pab cuam thiab lub sijhawm ua haujlwm txhua hnub
- Kub, plua plav, chips, ya raws thiab lwm yam ib puag ncig
- Muaj kev txhawb nqa -cov kabmob thiab ncej- qhov kawg qhov ntev
Cov xwm txheej no yog siv los txiav txim siab txoj kab uas hla ntawm lub taub hau, txhuas, hom txiv ntseej, qhov tseeb, preload, kev ntsuas kev thauj khoom, kev txhawb nqa thiab kev xav tau lubrication. Rau cov txheej txheem industrial positioning, ib dovSFU pob ntsia hlautej zaum yuav tsim nyog, thaum daim ntawv thov uas yuav tsum tau sib txawv rigidity, clearance los yog installation yam ntxwv tej zaum yuav xav tau lwm yam txiv ntoo configuration.
FAQ
Puas yog qib raug siab dua lav tau zoo dua rov ua dua?Xaus
Tus nqi ntawm lub pob ntsia hlau nyob rau hauv precision kis tau tus mob los ntawm kev sib koom ua ke ntawm kev sib cuag ntawm dov, txhuas qhov tseeb, clearance, preload, rigidity thiab kev txhawb nqa. Nws qhov kev ua tau zoo kawg kuj tseem zoo li lub lubrication, kev txhim kho kev sib raug zoo, kev coj tus cwj pwm thermal thiab kev tswj lub tshuab.
Lub pob ntsia hlau tsim nyog yog li ntawd tsis yog tus qauv uas muaj qhov yuam kev me me tshaj plaws lossis qhov ntsuas siab tshaj plaws. Nws yog qhov tshwj xeeb uas ua tau raws li qhov xav tau ceev, qhov tseeb, nruj thiab kev pabcuam- lub hom phiaj lub neej raws li lub sijhawm ua haujlwm tiag tiag.
Cov ntaub ntawv
- ISO 3408 series - Pob ntsia hlau
- Rolling ntsia hlau kev taw qhia npog load ntsuam xyuas, rigidity, tseem ceeb ceev thiab buckling xam
Xav tau kev pab kom paub meej tias lub pob ntsia hlau specification?
Xa cov hlab ntsha tawg, ceev, thauj khoom, kev taw qhia kev teeb tsa thiab cov kev cai raug rau DLY rau kev pom zoo.
Tiv tauj pebEmail:export@dlybearing.com
