Xaiv ibpob ntsia hlau rau kev ua haujlwm siab - ceevtsis yog ib qho teeb meem ntawm kev xaiv tus qauv cim "kev kub ceev." Qhov xav tau kev tshaj tawm tawm yuav tsum tau hloov mus rau hauv cov ntsia hlau sib hloov ceev, tom qab ntawd qhov ceev ceev, DN tus nqi, ncej ntev, kev txhawb nqa thiab cov cua sov txhua yam yuav tsum tau kuaj xyuas.
Cov ntsia hlau tuaj yeem muaj peev xwm thauj khoom txaus tab sis tseem tsis tsim nyog rau lub nrawm nrawm vim tias nws qhov kev sib hloov ceev mus txog lub zog resonance lossis tshaj qhov tso cai ceev ntawm lub pob ncig. Conversely, ib tug raug xaivkev kub ceev pob ntsia hlautuaj yeem muab kev mus los sai sai thaum tswj kev txav chaw ruaj khov, siv tau qhov kub thiab tswj lub suab nrov.
Cov kev kuaj hauv qab no piav qhia seb yuav txiav txim siab seb lub pob ntsia hlau puas haum rau siab - CNC axes ceev, ntim tshuab, khoom siv automation, laser ua tshuab thiab lwm yam ceev - daim ntawv thov.
Pib nrog Linear Ceev
Tshuab specifications ib txwm hais qhov yuav tsum tau linear mus ncig teb chaws ceev, thaum lub pob ntsia hlau txwv feem ntau qhia raws li rotational ceev. Cov txiaj ntsig no txuas nrog cov ntsia hlau ntsia hlau:
v = L × n
| v | Linear ceev, ib txwm hais nyob rau hauv mm/min |
| L | Pob ntsia hlau lead hauv mm/rev |
| n | Screw rotational ceev hauv rpm |
Piv txwv li, ib lub tshuab xav tau 30,000 mm / min ntawm linear mus ncig yuav xav tau 10 mm lead ntsia hlau tig ntawm 3,000 rpm. Ib tug 20 hli txhuas ntsia hlau yuav tsim tib txoj kab ceev ntawm 1,500 rpm.
| Yuav tsum tau linear ceev | Ntsia Hlau | Yuav tsum tau RPM | Kev soj ntsuam thawj zaug |
|---|---|---|---|
| 30,000mm / min | 5 hli | 6,000 rpm | Siab ceev ceev; txwv yuav tsum tau xyuas kom zoo |
| 30,000mm / min | 10 mm | 3,000 rpm | Ntau cov tswv yim rau ntau cov axes industrial |
| 30,000mm / min | 20 mm | 1,500 rpm | Tsawg RPM, tab sis lub cev muaj zog torque thiab qhov chaw daws teeb meem tseem xav tau kev kuaj xyuas |
Cov hlau lead loj tuaj yeem txo qhov RPM xav tau rau kev mus los sai, tab sis nws tsis yog qhov kev xaiv zoo tshaj plaws. Lead kuj cuam tshuam rau kev daws teeb meem pub, xav tau lub cev muaj zog torque, acceleration teb thiab muaj peev xwm rov qab - tsav tsheb. Yog li ntawd, qhov ua tiav axis yuav tsum raug ntsuas ntau dua li xaiv cov hlau lead los ntawm kev ceev ib leeg.
Tshawb xyuas ceev ceev
Pob ntsia hlau qhov tseem ceeb ceev yog txuam nrog lub ntuj zaus ntawm rotating ntsia hlau ncej. Raws li kev sib hloov ceev mus txog qhov zaus no, lub ncej tuaj yeem pib vibrate lossis nplawm. Kev vibration ntau dhau tuaj yeem ua rau lub suab nrov, qhov chaw tsis ruaj khov, kev puas tsuaj rau cov kabmob thiab tsis ua haujlwm ntxov ntxov.
Qhov tseem ceeb ceev yog feem ntau cuam tshuam los ntawm cov ntsia hlau hauv paus txoj kab uas hla, unsupported ntev thiab kawg - txhawb kev npaj. Ib tug ntev thiab thinner ncej feem ntau muaj qis dua qhov tseem ceeb ceev, thaum lub hauv paus loj dua thiab kev txhawb nqa nruj dua tuaj yeem ua rau nws nce.
| Txhawb Kev Npaj | Cov txheeb ze tseem ceeb-Speed Capability | Hom kev siv |
|---|---|---|
| Tsau-taag | Siab tshaj plaws ntawm cov kev npaj sib xws | Ntev ntev los yog ceev axes xav tau siab rigidity |
| Tsau-txhawb | Nruab nrab mus rau siab | Common CNC thiab industrial automation axes |
| Txhawb-txhawb | qis | Daim ntawv thov nrog nruab nrab ceev thiab thauj khoom |
| Tsau-dawb | qis tshaj | Short-stroke, kuj qis-ceev mechanisms |
Kev tso cai ua haujlwm ceev yuav tsum yog raws li cov chaw tsim khoom suav lossis cov nqi teev tseg, suav nrog cov ntawv pom zoo kev nyab xeeb. Ib txoj cai uas nquag siv ua ntej yog ua kom lub cev khiav hauj lwm ceev qis dua li ntawm 80% ntawm kev suav ceev ceev, tab sis qhov kawg txwv yuav tsum ua raws li cov ntaub ntawv rau cov ntsia hlau xaiv thiab kev txhawb nqa.
Txheeb xyuas tus nqi DN
Qhov tseem ceeb ceev kev txhawj xeeb txog ncej resonance. Tus nqi DN, qee zaum sau ua Dm-N nyob ntawm qhov chaw tsim khoom txhais lus, txhawj xeeb txog kev muaj peev xwm ceev ntawm cov txiv ntseej thiab pob khoom.
Qhov kev siv txoj kab uas hla tej zaum yuav yog tus nominal ntsia hlau txoj kab uas hla los yog pob pitch - lub voj voog txoj kab uas hla, nyob ntawm seb lub catalog convention. Tib lub ntsiab lus yuav tsum yog li ntawd yuav tsum tau siv thaum muab piv cov nqi suav nrog cov chaw tsim khoom tau tso cai DN ntsuas.
Yog hais tias lub 25 hli ntsia hlau tig ntawm 4,000 rpm, nws nominal - txoj kab uas hla DN tus nqi yog:
Cov txiaj ntsig no yuav tsum yog qis dua tus nqi DN tso cai ntawm lub pob ntsia hlau xaiv. Kev nce tus ntsia hlau txoj kab uas hla tsis daws qhov DN - txwv qhov teeb meem ntawm tib RPM vim tias DN nce nrog txoj kab uas hla. Yog tias tus nqi ntsuas siab dhau lawm, kev ntsuas tau suav nrog txo RPM los ntawm cov hlau lead loj dua, xaiv cov txiv ntoo nrog tus nqi siab dua DN lossis siv lwm qhov kev teeb tsa tsav.
Xaiv Tus Thawj Coj Ua tib zoo
Lub siab hlau lead pob ntsia hlau txav ntev dua nyob rau hauv txhua lub kiv puag ncig, tso cai rau qhov xav tau cov kab nrawm mus txog ntawm cov ntsia hlau qis RPM. Qhov no tuaj yeem pab tus axis nyob qis dua ob qho tib si nws qhov tseem ceeb - txwv ceev thiab tso cai DN tus nqi.
Txawm li cas los xij, cov hlau lead thiab kev kub ceev piav qhia cov yam ntxwv sib txawv. "High lead" yog hais txog kev mus ncig ntawm ib lub kiv puag ncig, thaum "kev kub ceev" yog hais txog cov ntsia hlau sib dhos lub peev xwm ua haujlwm tau zoo ntawm RPM thiab linear tshaj tawm. Lub siab - txhuas ntsia hlau tsis tas yuav tsim nyog rau siab - kev pabcuam ceev tshwj tsis yog nws txoj kev ncig, kev txhawb nqa bearings, preload thiab lubrication kuj raug ntsuas rau kev ua haujlwm.
| Xaiv Factor | Cov nyhuv ntawm ib tug loj Lead | Dab tsi tseem yuav tau kuaj xyuas |
|---|---|---|
| Tawm mus ncig ib kiv puag ncig | Nce | Yuav tsum tau stroke thiab siab tshaj plaws axis ceev |
| RPM rau ib tug muab linear ceev | Txo qis | Qhov tseem ceeb ceev thiab DN tus nqi |
| Pub kev daws teeb meem | Ua coarser rau tib lub cev muaj zog daws teeb meem | Kev daws teeb meem encoder thiab qhov yuav tsum tau ua |
| Yuav tsum tau tsav torque | Tej zaum yuav nce rau tib axial load | Lub cev muaj zog torque, acceleration thiab lub voj voog ua haujlwm |
Tswj Preload thiab Kub
Preload tuaj yeem txhim kho axial rigidity thiab txo qis backlash, tab sis ntau dhau preload ua rau muaj kev sib cuag nrog lub zog, kev sib txhuam torque thiab kub tsim. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog thaum lub sij hawm tsis tu ncua siab -kev sib hloov ceev thiab nquag acceleration lossis deceleration.
Lub siab - qhov chaw ceev axis ib txwm xav kom txaus ua ntej kom ua tau raws li nws qhov nruj thiab thim rov qab- qhov yuav tsum tau ua kom raug yam tsis tsim kev rub tsis tsim nyog. Qhov tsim nyog preload tsis tuaj yeem xaiv los ntawm kev ceev ib leeg; axial load, positioning raug, acceleration thiab xav tau kev khiav hauj lwm kub yuav tsum tau txiav txim siab.
Kev nthuav dav cua sov tuaj yeem hloov qhov tseeb qhov tseeb thiab cov kabmob preload thaum lub sijhawm ua haujlwm ntev. Cov cuab yeej Precision yog li ntawd yuav tsum tau saib xyuas qhov kub thiab txias, tswj kom sov- nce, kev them nyiaj los ntawm kev tswj hwm lossis kev txhawb nqa ruaj khov uas tsim nyog tsim nyog.
Paub meej tias pob Recirculation
Thaum muaj kev sib hloov ceev, txhua lub pob rov nkag thiab tawm ntawm txoj kev sib tw. Kev hloov tam sim ntawm pob kev taw qhia tuaj yeem ua rau muaj kev cuam tshuam, kev co thiab suab nrov. Txoj kev ncig uas tsim los rau kev hloov pauv ntawm pob yog qhov tseem ceeb ntawm lub siab - pob ntsia hlau ceev.
Xaus-cap, sab hauv-deflector thiab sab nraud- cov qauv xa rov qab tuaj yeem siv tau hauv cov pob ntsia hlau, tab sis lawv lub peev xwm ceev tsis zoo ib yam. Tus qauv yuav tsum tsis txhob txiav txim los ntawm nws lub npe ib leeg. Paub meej tias qhov tso cai DN tus nqi, qhov siab tshaj plaws RPM, cov yam ntxwv ntawm lub suab nrov thiab cov kev xav tau lubrication rau qhov tsim cov txiv ntoo tiag.
Lubrication thiab sealing
Kev kub ceev nce tus naj npawb ntawm kev sib cuag hauv ib feeb thiab tuaj yeem ua kom lub roj nplua nyeem kub. Cov roj nplua nyeem tsawg dhau ua rau hnav thiab cua sov, thaum cov roj ntau dhau tuaj yeem ua rau muaj kev kub ntxhov thiab kev ua haujlwm torque.
- Siv cov roj nplua nyeem pom zoo rau cov ntsia hlau ceev, thauj khoom, kub thiab lub voj voog ua haujlwm.
- Siv cov lus teev tseg es tsis txhob sau cov txiv ntoo nrog roj ntau dhau.
- Teem lub sijhawm relubrication raws li cov sij hawm ua haujlwm thiab ib puag ncig kev sib kis.
- Siv cov ntsaws ruaj ruaj, hauv qab los yog npog qhov twg cov chips, plua plav lossis cov dej txias tuaj yeem nkag mus rau hauv txoj kev sib tw.
- Xav txog cov roj lubrication system thaum xav tau los ntawm kev ua haujlwm siab - nrawm nrawm.
Qhov kawg lubricant hom thiab muab txoj kev yuav tsum ua raws li lub pob ntsia hlau chaw tsim tshuaj paus cov lus qhia. Roj pos huab los yog cov roj circulating tsis tas yuav tsum tau rau txhua qhov siab - daim ntawv thov ceev.
Txhim kho thiab txhawb nqa Bearings
Txawm hais tias lub pob ntsia hlau raug ntsuas tuaj yeem ua kom sov lossis vibrate yog tias cov ntsia hlau ntsia hlau, cov txiv ntoo vaj tse thiab kev txhawb nqa cov kabmob tsis raug. Kev sib tw yuam kev tsim cov khoom radial ntxiv thiab kev sib cuag tsis sib xws hauv cov txiv ntoo.
Lub siab - kev teeb tsa ceev yuav tsum suav nrog:
- Muaj tseeb machined mounting nto thiab tswj coaxial alignment;
- Angular{0}}hu rau kev txhawb nqa bearings nrog txaus ceev, rigidity thiab preload muaj peev xwm;
- Lub coupling haum rau lub cev muaj zog ceev thiab xav tias misalignment;
- Kev nruj nruj ntawm cov kabmob locknut thiab txiv ntseej- tsev fasteners;
- Kev taw qhia kev txav mus los thiab qis- kev sim ua haujlwm nrawm ua ntej puv - kev sim nrawm.
Ntev -Stroke High-Speed Axes
Ntev unsupported shafts muaj feem ntau yuav ncav cuag lawv qhov tseem ceeb ceev ceev ntawm kuj tsawg RPM. Tsuas yog nce cov hmoov txhuas tuaj yeem txo qhov kev sib hloov ceev, tab sis txoj hauv kev no tseem xav tau kom txaus siab rau qhov load, rigidity, qhov chaw thiab lub cev muaj zog.
Rau qhov tshwj xeeb ntev thiab ceev axes, cov neeg tsim qauv yuav xav txog kev nce lub taub hau, txhim kho kev txhawb nqa los yog siv lub rotating -nut configuration. Nyob rau hauv ib lub rotating - txiv ntseej system, cov ntsia hlau ncej tseem nyob twj ywm thaum lub txiv ntseej tig, uas tsis txhob muaj qhov tseem ceeb - ceev txwv cuam tshuam nrog ib tug ntev rotating ncej. Cov txiv ntseej tsav, bearing kev npaj thiab lubrication system tom qab ntawd dhau los ua qhov tseem ceeb tsim kev xav.
High -Speed Selection Checklist
| Tswv yim | Vim Li Cas Nws Tseem Ceeb |
|---|---|
| Maximum thiab nruam linear ceev | Siv nrog txhuas los xam RPM xav tau |
| Coj | Muaj feem xyuam rau RPM, kev daws teeb meem, torque thiab mus ncig ib kiv puag ncig |
| Screw txoj kab uas hla thiab cov hauv paus hniav | Kev cuam tshuam rigidity, tseem ceeb ceev, buckling thiab load peev |
| Unsupported ntev thiab tag nrho stroke | Muaj zog cuam tshuam qhov tseem ceeb ceev thiab ncej deflection |
| Txhawb kev npaj | Hloov qhov tseem ceeb - muaj peev xwm ceev thiab axial rigidity |
| Qhov siab tshaj plaws thiab nruab nrab axial load | Yuav tsum tau load ntsuam xyuas, lub neej thiab lub cev muaj zog xam |
| Acceleration thiab lub luag hauj lwm voj voog | Influence dynamic load, lub cev muaj zog torque thiab kub |
| Positioning raug thiab backlash | Txiav txim siab qib raug thiab tsim nyog preload |
| Kev ua haujlwm ib puag ncig | Txiav txim siab sealing, tiv thaiv thiab lubrication yuav tsum tau |
Xaus
Lub pob ntsia hlau tsim nyog rau kev ua haujlwm siab - ceev yuav tsum ua kom tau raws li ob qhov kev txwv ceev: qhov tseem ceeb ntawm cov ntsia hlau ntsia hlau thiab qhov tso cai DN tus nqi ntawm lub pob ncig. Tus nqi tso cai qis dua dhau los ua qhov ua tau zoo hloov pauv - nrawm nrawm.
Cov hlau lead loj tuaj yeem txo qhov RPM uas yuav tsum tau ua kom ncav cuag lub hom phiaj kab nrawm, thaum qhov kev txhawb nqa nruj tuaj yeem txhim kho qhov tseem ceeb - muaj peev xwm ceev. Kev xaiv zaum kawg yuav tsum suav nrog kev thauj khoom, preload, lub cev muaj zog torque, lubrication, kev sib dhos, lub voj voog lub luag haujlwm thiab kev tsim hluav taws xob. Rau kev tshuaj xyuas dav dua ntawm cov qauv ntsia hlau muaj thiab cov lus qhia tshwj xeeb, saib covpob ntsia hlau ntau yam.
FAQ
Kuv yuav xam RPM li cas rau lub pob ntsia hlau?Cov ntaub ntawv
- THK, Tso cai Rotational Ceev ntawm Pob Screws.
- Steinmeyer, DN Tus Nqi hauv Pob Ntsia Hlau Xaiv.
Xav paub meej tias lub pob ntsia hlau rau qhov siab -axis ceev?
Xa qhov yuav tsum tau ceev, txhuas, stroke, axial load, kev them nyiaj yug thiab installation daim duab rau DLY rau kev paub tseeb.
WhatsApp pawg:+86 166 0578 8856| Email:dlyexport2@dlybearing.com
