Dab tsi yog backlash ntawm linear qhia?
Hav! Ntau cov kws kho tshuab tsim kho tshuab thiab cov cuab yeej saib xyuas cov neeg ua haujlwm feem ntau ntsib qhov kev ntxhov siab no thaum siv Qhia Ntawv QhiaS: "Txawm hais tias peb tau xaiv siab {{Precision linear tawm ntawm, vim li cas nws tseem xav tias 'xoob'? Dab tsi yog qhov tsim nyog rov qab '?" Qee qhov kev xav tias "Backlash yog tus nqi ruaj khov-}} Nyeem li cas txoj kev teeb tsa thiab thauj khoom cuam tshuam rau nws. Lwm tus ntseeg tias "backlash me dua yog ib txwm zoo dua," Tsis xav txog kev tshem tawm ntau dhau thiab ua rau lub neej ua haujlwm ntau dhau los. Tseem muaj lwm tus muaj kev nkag siab tsis meej txog txoj kev kuaj pom ntawm backlash kom paub, tsis tuaj yeem txiav txim siab yog tias cov lus qhia ua tau raws li kev siv. Hauv kev muaj tiag, Qhia Ntawv QhiaBacklash tsis yog "tsau parameter," tab sis ib qho kev xav tau tseem ceeb ntawm kev hloov kho kom hloov kho kom haum raws li cov txheej txheem precision, thiab txheej txheem kev teeb tsa.
Ua ntej, nkag siab: 2 tseem ceeb qhov tseeb hais txog kev coj ua linear backlash {}} nws tsis yog "me dua, qhov zoo dua"
Los tsim cov qauv ntshiab rau Qhia Ntawv QhiaBacklash, peb yuav tsum xub ua thawj qhov kev ua kom yuam kev tsis yog {{0} backlash tsis yog "kev ua tsis tiav qhov ntsuas" thiab "kev ua haujlwm du." Qhov tseeb kev nkag siab yuav tsum tau tuav nws lub ntsiab txhais thiab kev cuam tshuam.
1. Kev Pom Zoo 1: Dab tsi yog linear qhia backlash? Nws tsis muaj equate rau "ua tsis tiav"
Tawm Qhia Backlash (kuj tau hais txog "kev tshem tawm" los ntawm kev qhia sib tw "ntawm kev sib tw Rail thiab swb, cov zaub / cov zaub mov) thiab rollame. Nws feem ntau muaj ob hom:
Radial Backlash:Carmance perpendicular rau cov lus qhia cov lus taw kev taw qhia, sawv cev rau slider qhov ntsug thiab tom qab kev sib txheeb ze rau cov lus qhia. Qhov no feem ntau cuam tshuam cov khoom siv anti -} ¿ovability.
Axial backlash:Clearthance rau cov lus qhia kev coj cov lus taw qhia, sawv cev rau slider's "free mus ncig" raws li phau ntawv qhia ntev. Qhov no ncaj ncaj cuam tshuam cov khoom siv qhov raug thiab rov ua dua.
Nco tseg:Lub Backlash hauv Qhia Ntawv Qhias yog "tsim {{{{{{{{} Muaj kev tshem tawm," tsis yog "kev ua yuam kev" lossis "hnav clearance." Cov thaub qab kom raug txwv tsis txhob sib nrauj qhuav los ntawm kev cuam tshuam ntawm dov cov khoom thiab remame, ua rau muaj kev lag luam zoo. Tshem tawm Backlash nkaus (piv txwv li, ua tiav qhov kev cuam tshuam haum) yuav ua rau dov lub caij thiab kev sib tw compression hnav, ua kom luv dua cov lus qhia kev coj.
2. Kev Ntsig 2: Cov kev cuam tshuam tseem ceeb ntawm Backlash - kev sib npaug "thiab 'purespan'
Qhov tseem ceeb ntawm cov kab ntawv qhia tawm backlash ncaj qha cuam tshuam cov cuab yeej kev ua tau zoo thiab cov ntawv qhia nyiaj txiag. Nws yuav tsum muaj feem sib npaug raws li daim ntawv thov xav tau, ntau dua li qhov muag tsis pom kev "tsawg kawg nkaus":
Cuam tshuam rau qhov tseeb:Ntau dhau axial backlash ua rau "pub dawb." Piv txwv li, yog tias lub tshuab dhos cnc tshuab lub axial backlash ze li 0.005 hli, cuab tam promicting yuam ntau tshaj, tsis tshua muaj qhov tseeb. Kev ua kom ntau dua radial backlash txo cov lus qhia kev tawm tsam -} overturning muaj peev xwm.
Kev Cuam Tshuam Txog Kev Ua Haujlwm:Ntau dhau ntawm backlash (lossis cuam tshuam haum) nce kev sib txhuam ntawm cov khoom siv cua sov (qhov chaw nyob sab nraud), thaum tseem ua rau muaj lub zog tsav tsheb thiab muaj peev xwm ua rau "stuttering." Conversely, ntau dua rov qab tsim cov zog cuam tshuam rau kev ua haujlwm thaum pib hloov cov suab nrov (suab nrov hloov suab (suab nrov tshaj 70dB);
Kev cuam tshuam rau lub neej pabcuam:Kev tsis raug cai rov qab hnav -} heev me ntsis me ntsis backlaces ua rau "indentation hnav" ntawm lub neej kev sib tw, txo lub neej kev ua haujlwm dhau 30%; Ntau dhau backlash ua rau dov lub cev nkees spling vim cuam tshuam rau kev cuam tshuam, muaj peev xwm ua haujlwm kom luv luv los ntawm 50%.
Thib ob, cov qauv thib 3 rau kev kho cov kab lus tawm rov qab: ua kom muaj kev xav tau, tsis yog "loj}
Lub hoobkas - teev backlash ntawm Qhia Ntawv Qhias yog "tus nqi hauv paus." Kev siv kev siv tau yuav tsum tau kho kom haum raws cov xwm txheej tshwj xeeb.
Txoj kev hloov haum kev hloov kho tau poob rau hauv peb pawg lawm: "Kev hloov kho ntxiv mus," thiab "kev hloov kho" "uas tuaj yeem siv ib tus zuj zus lossis ua ke.
1. Txoj Kev 1: Preload Kho Kom Haum - Qhov kev ua kom ncaj qha rau "txo Backlash"
Kev hloov kho tshiab Preload for for for slide thaiv, nyem cov khoom siv yob tawm tsam kev tshem tawm.
Nov yog txoj kev feem ntau rau kev siv siab tshaj plaws- precision applications thiab feem ntau suav nrog peb hom:
Shim preload (tsim nyog rau dual - swb cov qauv qauv):
Muaj feem xyuam nrog cov xwm txheej: Cov xwm txheej yuav tsum muaj kev hloov pauv nquag, muab cov kev yooj yim yooj yim {} lub sij hawm nplua;
Kev cuam tshuam haum haum preload (rau qhov siab -} cov ntawv thov nruj):
Lub hauv paus ntsiab lus: Xaiv cov kev qhia qhia qhov twg Rolling lub kab uas hla me ntsis ntau dua qhov kev tshem tawm sib tw. Tom qab sib dhos, cov khoom siv yob thiab Rollameays ib txwm ua ib qho kev cuam tshuam haum, tshem tawm backlash, tshem tawm backlash, tshem tawm backlash;
Kev ua haujlwm:Yuav tsum tau cov cuab yeej tshwj xeeb tshwj xeeb (piv txwv li, hydraulic xovxwm) kom tiv thaiv kev puas tsuaj los ntawm kev yuam rauj. Post - Kev Sib Tham Khiav yuav tsum tau sim (Kuj tsawg dua los yog sib npaug nrog kev thauj khoom ntev dhau).
Muaj feem cuam tshuam cov xwm txheej:Siab -} rigidity, xoom -} backlash daim ntawv thov. Tshem tawm cov xoob tom qab teloading, ua tiav kev ua kom zoo tshaj plaws, tab sis yuav tsum saib xyuas cov haujlwm kub.
2. Txoj Kev 2: Installation Haum hloov kho - tswj backlash ntawm "kev teeb tsa"
Kev siv tsis raug cai tuaj yeem qhia ntxiv cov backlash ntxiv, xav tau kev tswj kom meej meej:
Qhia Rail Parallelism hloov kho:
Yuav tsum:Parallelism nruab nrab ntawm ob lub parallel - cov ntawv qhia qhia kev qhia yuav tsum tsawg dua lossis sib npaug nrog 0.002mm / m. Kev cuam tshuam dhau ntawm kev pheej yig yuav ua rau "ntxiv radial backlash" thaum lub swb haujlwm.
Tus txheej txheem:Txheeb xyuas qhov tseeb uas siv cov laser cuam tshuam lossis precision ncaj. Yog hais tias tawm ntawm kev ua siab ntev, theem cov lus qhia los ntawm kev kho Shims hauv qab lawv (tawv tawv tuab ua kom muaj kev sib tw zoo tshaj plaws.
Bolt Zawm Torque Tswj:
Yuav tsum:Slider Mounting Bolts yuav tsum ua kom nruj rau cov torque. Tsis ncaj teg yuav ua rau slidas slormation thiab cheeb tsam backlash.
Tus txheej txheem:Siv lub torque wrench kom nruj bolts nyob rau hauv ib tug "kab txawv kab kos nyob rau theem." Ua ntej nruj rau 50% ntawm cov kev teev lub zog, tom qab ntawd txog 100%. Qhov no ua kom cov zog coj mus rau txhua lub qhov rooj thiab tiv thaiv kev deformation swb.
Installation Deg Ncaj Haum Hloov:
Yuav tsum muaj:Lub tiaj tiaj ntawm cov lus qhia kev tsheb ciav hlau teeb tsa yuav tsum yog tsawg dua lossis sib npaug nrog 0.003mm / m. Kev sib txawv ntau dhau yuav ua rau kev qhia kev sib tw ntawm kev sib tw, tsis sib luag, txo qis qis ntawm cov kev cuam tshuam saum npoo av thiab nce backlashs thiab nce backlashs thiab nce backlash ntawm kev ntxhov siab).
Tus txheej txheem:Tshawb xyuas cov npoo av sib luag siv cov theem precision. Chaw nyob txawv txav los ntawm kev sib tsoo nrog plua plav {{1000 grit lossis siab dua) lossis tshee nrog precision shims kom ua tiav ib qho chaw tiaj tus.
3. Txoj Kev 3: Kev Hloov Kho Txheej Txheem - hack rov qab cov kev xav tau ntawm "kev xaiv"
Rau cov xwm txheej nrog cov kev xav tau tshwj xeeb nrog kev xaiv cov lus qhia kev tsheb nqaj hlau nrog cov qauv tshwj xeeb:
Rolling hom xaiv xaiv:
Pob - Hom Phau Ntawv Qhia:Nta steel pob raws li yob cov ntsiab nrog thaj chaw sib tiv tauj me me, muab ib qho dav dav ntxiv rau cov khoom (0.001- 0.02 hli). Haum rau nruab nrab - rau - tsis muaj load, cov ntawv thov siab.
Cov menyuam - Koj Phau Ntawv Qhia Hom:Nta chais raws li yob cov ntsiab nrog thaj chaw sib tiv toj loj, ua tiav qis dua cov backlash (stably tswj hauv qab 0.001 hli) thiab ntau dua rigidity. Haum rau high {{2} bead, siab -} kev siv roj tawv.
Slider Cov Qauv Xaiv:
Txheem slider:Backlash yog lub Hoobkas - teev rau tus qauv muaj nuj nqis, haum rau cov ntawv thov cov ntawv thov;
Dav slider:Nta txuas ntxiv slider ntev rau thaj chaw sib tiv toj nrog cov lus qhia radial backlash (30} precision, hnyav {{load cov ntawv thov;
Phau Ntawv Qhia Cov Kev Rail Xaiv:
Gothic Profile Raceway (Ob Chav Nkaus nkhaus Raceway):Ntau cov ntsiab lus sib tiv thaiv nruab nrab ntawm Rolling cov ntsiab lus thiab Raceway, ua kom siab dua Basterlash hloov kho qhov tseeb (nqis rau ultra - qhov kev siv precision zoo;
Nkhaus kev sib tw:Thaj chaw tiv toj loj, muaj peev xwm thauj tau muaj peev xwm, pub me ntsis loj dua rov qab (0.00} 0.01mm), haum rau cov ntawv thov siab thauj khoom.
Thib peb, ob lub ntsiab lus tseem ceeb rau Qhia Ntawv QhiaBacklash: kom ntseeg tau "Backlash tau raws li qhov yuav tsum tau ua"
Tom qab Backlash kev hloov kho, kev tshuaj xyuas kev tshaj lij yog qhov yuav tsum tau ua kom paub meej nrog cov qauv. Cov kev ntsuam xyuas cov kev kuaj xyuas muaj xws li "axial backlash kev tshuaj ntsuam" thiab "badial backlash kev tshuaj xyuas," ob qho tib si yuav tsum muaj cov cuab yeej haum thiab kev ua raws li cov txheej txheem qauv.
1. Axial Backlash Kev Soj Ntsuam: tsom rau "txoj hauj lwm raug ({1}}} cov kev tshem tawm"
Axial backlash ncaj qha cuam tshuam cov cuab yeej ua kom raug thiab yuav tsum tau ntsuas ntsuas ntsuas nrog cov ntsuas micrometer:
Cov cuab yeej: DI cim qhia (raug 0.001 hli) lossis micrometer qhia tau yas, ntsuas cua (qhov tseeb 0.0005 hli);
Txheej txheem tshuaj ntsuam xyuas:
Muaj kev nyab xeeb lub sib nqus hu ua tau taw qhia lub hauv paus rau lub zawv thaiv. Dlib lub Dial qhia lub taub hau nruab nrab nrog lub gauge thaiv ntawm cov lus qhia rail sab (lossis kev sib chwv ntawm lub taub hau ntawm lub taub hau thiab ntsuas kev thaiv. Thov ib lub preload ntawm 0.3-0.5mm (1-2 hu ntsuas cov ntxig rotency).
Maj mam thawb lub swb raws txoj kev coj zoo ntawm cov lus qhia Rail kom txog thaum tus xov tooj hu tsis tau txav mus. Sau cov kev nyeem no (ua rau).
Maj mam thawb lub vias rau ntawm cov kev taw qhia rov qab ntawm cov lus qhia Rail kom txog thaum lub xov tooj tsis tau txav mus. Sau cov kev nyeem no (piav qhia li b).
Axial backlash=| - b |. Rov ua ntsuas qhov ntsuas 3 zaug thiab nqa qhov nruab nrab (yuam kev yuav tsum tsawg dua lossis sib npaug rau 0.0005mm).
Cov txheej txheem lees txais:Txiav txim siab raws li cov ntawv thov yuav tsum tau ua.
2. Radial Backlash Kev Soj Ntsuam: tsom rau "Backlash cuam tshuam rau kev ua haujlwm ruaj khov"
Radial backlash cuam tshuam cov khoom siv anti -}} erturn muaj peev xwm thiab kev ua haujlwm ruaj khov. Tshawb xyuas nyias rau "ntsug ntsug" thiab "kab rov tav radial" Cheebtsam:
Ntsug Radial Backlash kev tshuaj xyuas:
Muaj kev nyab xeeb cov sib nqus Dial qhia tau lub hauv paus rau cov ua haujlwm (txuas nrog cov swb thaiv). Position Cov Dial Qhov Ntsuas Lub Taub Hau Ntseg Nruab Nrab Mus Rau Cov Kev Qhia Rail cov npoo sab saud nrog 0.3-0.5mm Preload.
Maj mam nqa cov swb thaiv (lossis ua haujlwm) nce mus ntawm tes thiab sau lub xov tooj hu kev hloov pauv kev hloov pauv (txhais raws li c).
Tom qab ntawd maj mam nias lub swb thaiv (lossis ua haujlwm) qis dua thiab sau lub xov tooj hu kev hloov pauv kev hloov pauv (txhais raws li D).
Ntsug radial clearance =}|C + d |;
Kab rov tav radial muab tshuaj ntsuam:
Muaj kev nyab xeeb lub sib nqus hu ua tau ntsuas ntsuas rau cov neeg ua haujlwm. Dlib tus ntaus cim taw tes lub taub hau kab rov tav nrog cov lus qhia kev rail sab nto, nrog lub preload ntawm 0.3-0.5mm;
Manually thawb lub swb thaiv rau sab laug, sau nyeem ntawv (denoted li e); Thawb daim swb thaiv rau sab xis, sau nyeem ntawv (denoted li f).
Tiv Tauj Peb
Xov tooj:+86-8613116375959
📧 Email:741097243@qq.com
🌐 Lub Vev Xaib Haujlwm:https: //www.automation - js.com/.com/
