Lub kauj ruam lub cev muaj zog

Khoom hloov
Tus qauv qub ntawm stepper lub cev muaj zog pib thaum xyoo 1930 los ntawm 1830 txog 1860. Nrog rau kev txhim kho ntawm cov khoom siv hlau nplaum ruaj khov thiab cov khoom siv thev naus laus zis, stepper lub cev muaj zog sai tsim thiab loj hlob. Hauv lub sijhawm xyoo 1960, Tuam Tshoj pib tshawb nrhiav thiab tsim cov tshuab nqus nres tsheb. Txij thaum ntawd mus txog rau lub sijhawm xyoo 1960, nws yog feem ntau ntawm cov khoom lag luam me tsim los ntawm cov tsev kawm qib siab thiab cov koom haum tshawb fawb los kawm qee cov khoom siv. Tsuas yog thaum ntxov xyoo 1970 tau ua kev txhim kho hauv kev tsim khoom thiab kev tshawb fawb. Los ntawm nruab nrab xyoo 70 mus txog nruab nrab xyoo 1980s, nws nkag mus rau theem kev txhim kho, thiab ntau yam khoom muaj txiaj ntsig zoo tau txuas ntxiv. Txij li thaum nruab nrab xyoo 1980, vim yog kev txhim kho thiab kev txhim kho ntawm hybrid stepper motors, thev naus laus zis ntawm Tuam Tshoj txoj kev tsim stepper motors, suav nrog lub cev thev naus laus zis thiab kev siv tshuab thev naus laus zis, maj mam mus txog theem ntawm kev lag luam txawv teb chaws. Ntau yam hybrid stepper motors Khoom siv rau nws cov neeg tsav tsheb tau nce zuj zus.
Raws li cov actuator, stepper tsav yog ib qho ntawm cov khoom tseem ceeb ntawm mechatronics thiab siv dav hauv ntau cov khoom siv kho tshuab. Lub kauj ruam lub cev muaj zog yog qhib lub voj kev tswj uas hloov lub teeb liab hluav taws xob rau kev ua lub ntsej muag angular lossis linear tawm. Thaum tus tsav npav theem taw qhia tau txais lub teeb liab mem tes, nws tsav lub stepping lub cev muaj zog tig tig lub kaum sab xis (piv txwv li, taw ntaiv) hauv kev taw qhia. Lub kaum kev hloov chaw tuaj yeem tswj tau los ntawm kev tswj hwm tus naj npawb ntawm cov pulses, thiaj li ua tiav lub hom phiaj ntawm kev muab tso rau qhov raug. Hybrid stepper lub cev muaj zog yog lub cev muaj zog stepper tsim los ntawm kev sib txuas ntawm qhov zoo ntawm cov hlau nplaum tas mus li thiab nti tawm. Nws tau muab faib ua ob ntu, peb theem thiab tsib ntu. Lub sijhawm ob-theem kauj ruam feem ntau yog 1.8 degrees. Peb-theem theem kaum feem ntau yog 1.2 qib.

Yuav ua li cas nws ua haujlwm
Tus qauv tsim ntawm hybrid stepper lub cev muaj zog sib txawv los ntawm qhov sib txawv ntawm qhov tsis txawv stepper lub cev muaj zog. Tus stator thiab rotor ntawm hybrid stepper lub cev muaj zog yog txhua qhov sib txuam, thaum tus stator thiab rotor ntawm hybrid stepper tsav tau muab faib ua ob ntu raws li qhia hauv daim duab hauv qab no. Cov hniav me me kuj tau faib rau thaj chaw.
Qhov ob kab ntawm cov stator tau zoo nyob, thiab windings yog teem rau lawv. Cov lus saum toj no yog ob-theem 4-khub motors, ntawm uas 1, 3, 5, thiab 7 yog A-theem winding sib nqus ncej, thiab 2, 4, 6, thiab 8 yog B-theem winding sib nqus ncej. Cov sib nqus sib nqus ncej windings ntawm txhua theem raug mob nyob rau hauv kev qhia rov qab los tsim hluav taws xob sib nqus raws li qhia hauv x thiab y cov lus qhia hauv daim duab saum toj no.
Qhov xwm txheej ntawm B B zoo ib yam li theem ntawm A. A. Ob txoj kab sib dhos ntawm rotor yog staggered los ntawm ib nrab ntawm lub suab (saib Daim duab 5.1.5), thiab qhov nruab nrab yog txuas nrog los ntawm lub nplhaib puab uas muaj cov hlau nplaum ruaj khov. Cov hniav ntawm ob ntu ntawm rotor muaj qhov sib txawv cov sib nqus. Raws li tib lub hauv paus ntsiab lus ntawm lub cev muaj zog, ntev li ntev tau lub cev muaj zog energized nyob rau hauv qhov kev txiav txim ntawm ABABA lossis ABABA, lub stepper lub cev muaj zog tuaj yeem txuas tig rau qub lossis xoos moos.
Pom tseeb, tag nrho cov hniav ntawm tib ntu ntawm rotor hniav muaj tib lub polarity, thaum lub polarities ntawm ob lub rotor ntawm cov ntu sib txawv yog rov qab. Qhov loj tshaj qhov sib txawv ntawm hybrid stepper lub cev muaj zog thiab lub zog tiv thaiv stepper lub cev muaj zog yog tias thaum cov hlau nplaum ruaj khov ruaj khov khoom tawg yog demagnetized, yuav muaj oscillation taw tes thiab thaj chaw tawm chaw.
Lub rotor ntawm ib tug hybrid stepper lub cev muaj zog yog sib nqus, yog li ntawd lub zog tsim nyob rau hauv tib lub stator tam sim no loj dua li ntawm qhov reactive stepper lub cev muaj zog, thiab nws cov kauj ruam kaum feem ntau me me. Yog li ntawd, nyiaj txiag lub tshuab ua haujlwm CNC feem ntau xav tau hybrid Stepper lub cev muaj zog tsav. Txawm li cas los xij, hybrid rotor muaj cov qauv ntau dua thiab muaj rotor loj dua, thiab nws cov hluav taws xob nrawm qis dua li ntawm cov reactive stepper motor.

Cov qauv thiab tsav hloov kho
Muaj ntau cov chaw tsim khoom hauv tsev ntawm stepper motors, thiab lawv cov qauv ua haujlwm yog tib yam. Cov hauv qab no siv ib qho kev sib tw ntawm ob-theem hybrid stepper lub cev muaj zog 42B Y G2 50C thiab nws cov tsav tsheb SH20403 ua piv txwv los qhia cov qauv thiab kev tsav tsheb ntawm hybrid stepper lub cev muaj zog. [2]
Ob-theem hybrid stepper lub cev muaj zog qauv
Hauv kev tswj kev lag luam, tus qauv nrog cov hniav me me ntawm tus stator ncej thiab ntau tus rotor hniav raws li pom hauv daim duab 1 tuaj yeem siv, thiab nws cov kauj ruam yuav ua tau me me. Daim duab 1 ob

Cov txheej txheem kev teeb tsa ntawm cov theem hybrid stepping lub cev muaj zog, thiab daim duab xaim ntawm cov kauj ruam lub kauj hlau hauv daim duab 2, ob theem ntawm windings ntawm A thiab B yog theem-cais nyob rau hauv kev taw qhia radial, thiab muaj 8 tus qauv tiv thaiv sib nqus qhov kev ncig ntawm lub stator. Lub zog hlau nplaum 7 yog nyob ntawm A-theem winding, thiab tus 2, 4, 6, thiab 8 cov hlau nplaum yog rau B-theem winding. Muaj 5 hniav nyob ntawm txhua tus ncej sab saum npoo ntawm tus stator, thiab muaj kev tswj windings ntawm tus ncej lub cev. Lub rotor muaj lub nplhaib ntiv nplhaib cov hlau nplaum sib txuas thiab ob ntu ntawm cov kav hlau. Lub nplhaib ntiv nplhaib hlau loj yog sib nqus nyob rau hauv kev qhia axial ntawm rotor. Ob ntu ntawm cov kav hlau txuas yog ntsia rau ntawm ob kawg ntawm cov hlau nplaum sib txawv, yog li ntawd qhov rotor tau muab faib ua ob txoj haujlwm sib nqus nyob rau hauv cov kev taw qhia axial. 50 hniav yog tusyees faib rau ntawm rotor tub ntxhais. Cov hniav me me ntawm ob ntu ntawm cov tub ntxhais yog staggered los ntawm ib nrab ntawm lub suab. Lub suab thiab dav ntawm lub rotor taag yog tib yam.

Ua haujlwm txheej txheem ntawm ob-theem hybrid kauj ruam lub cev muaj zog
Thaum kev tswj ob-theem windings nthuav dav hluav taws xob nyob rau hauv qhov kev txiav txim, tsuas yog ib theem winding yog energized rau ib lub yeej, thiab plaub tus neeg tsim ib lub voj voog. Thaum qhov tam sim no dhau los ntawm kev tswj hwm winding, ib lub zog magnetomotive tsim, uas sib cuam tshuam nrog cov hlau nplaum quab yuam tsim los ntawm cov hlau nplaum ruaj khov los tsim hluav taws xob lub zog thiab ua rau lub rotor ua rau lub zog txav. Thaum A-theem winding yog energized, S S sib nqus ncej tsim los ntawm winding ntawm rotor N huab ncej 1 nyiam rotor N ncej, kom cov hlau nplaum hlau 1 yog hniav-rau-hniav, thiab cov hlau nplaum kab yog qhia los ntawm rotor N ncej mus rau hniav sab ntawm lub sib nqus 1, thiab cov sib nqus ncej 5 Hniav-rau-hniav, sib nqus ncej 3 thiab 7 yog txha hniav-txhuam, zoo li hauv daim duab 4
-A-theem energized rotor N huab stator rotor tshuav daim duab. Vim tias cov hniav me me ntawm ob ntu ntawm rotor core yog staggered los ntawm ib nrab ntawm lub suab, ntawm S ncej ntawm lub rotor, S ncej hlau sib nqus ua los ntawm cov hlau nplaum ncej 1 'thiab 5 ′ repels S ncej ntawm rotor, uas yog tus nplaig-rau-qhov txuas nrog lub rotor, thiab tus ncej 3 'Thiab 7 surfacetooth nto tsim ib qho N-ncej sib nqus, uas nyiam S-ncej ntawm rotor, kom cov hniav ntsib ntsej muag. Lub rotor N-ncej thiab S-ncej rotor sib npaug daim duab thaum A-theem winding yog energized yog qhia hauv daim duab 3.

Vim tias lub rotor muaj 50 tus hniav nyob rau hauv tag nrho, nws lub suab kaum yog 360 ° / 50 = 7.2 °, thiab tus naj npawb ntawm cov hniav nyob hauv txhua tus pas nrig ntawm lub stator tsis yog ib qhov tseem ceeb. Yog li no, thaum Ntu A theem ntawm tus stator yog energized, N ncej ntawm lub rotor, thiab tus ncej ntawm 1 Lub tsib hniav yog rov qab rau rotor hniav, thiab tsib tus hniav ntawm lub sib nqus 2 ntawm theem B winding tom ntej no mus lub rotor hniav muaj 1/4 suab misalignment, piv txwv li, 1.8 °. Qhov twg lub voj voos raug kos, cov hniav ntawm A-theem sib nqus tus ncej 3 thiab lub rotor yuav hloov chaw 3.6 °, thiab cov hniav yuav ua raws li lub zawj.
Cov kab sib nqus ua ke yog ib txoj kab nkhaus kaw raws N-kawg ntawm lub rotor → A (1) S cov hlau nplaum → lub nplhaib sib nqus → A (3 ') N sib nqus ncej → rotor S-kawg → rotor N-kawg. Thaum theem A raug tso tawm thiab theem B yog energized, sib nqus ncej 2 ua kom muaj N polarity, thiab S ncej rotor 7 hniav ze tshaj rau nws yog nyiam, kom rotor tig 1.8 ° moos kom tau raws li cov hlau nplaum ncej 2 thiab rotor hniav rau cov hniav , B Qhov kev txhim kho theem ntawm stator cov hniav ntawm qhov winding theem yog qhia hauv Daim duab 5, lub sijhawm no, tus pas hlau nplaum 3 thiab rotor hniav muaj 1/4 suab misalignment.
Los ntawm cov piv txwv, yog hais tias lub zog tau txuas ntxiv hauv qhov kev txiav txim ntawm plaub tus neeg ntaus, lub rotor tig cov kauj ruam ib kauj ruam zuj zus raws li moos moos. Txhua zaus ua lub zog energization, txhua tus mem tes rotates txog 1.8 °, uas txhais tau tias lub kauj ruam kaum yog 1.8 °, thiab lub rotor tig ib zaug Yuav tsum muaj 360 ° / 1.8 ° = 200 pulses (saib Daim Duab 4 thiab 5).

Tib yam muaj tseeb ntawm qhov kawg ntawm rotor S. Thaum cov hniav winding rov qab rau cov hniav, tus pas hlau nplaum ntawm ib theem ntawm nws txuas yog misaligned los ntawm 1.8 °. 3 Stepper motor tsav tsheb Stepper tsav yuav tsum muaj tus tsav tsheb thiab maub los ua haujlwm ib txwm. Lub luag haujlwm ntawm tus neeg tsav tsheb yog txhawm rau faib cov kev tswj pulses hauv lub nplhaib thiab ua kom muaj zog, kom cov cua ntawm stepper lub cev muaj zog energized nyob rau hauv ib qho kev txiav txim los tswj kev sib hloov ntawm lub cev muaj zog. Tus tsav ntawm lub stepper tsav 42BYG250C yog SH20403. Rau 10V ~ 40V DC fais fab mov, A +, A-, B +, thiab B-terminals yuav tsum txuas nrog plaub tus coj ntawm stepper lub cev muaj zog. Cov DC + thiab DC- cov xaus yog txuas nrog tus tsav tsheb DC lub zog. Lub voj hluav taws xob nkag nruab nrog suav nrog cov davhlau ya nyob twg (txuas mus rau qhov zoo ntawm lub davhlau ya nyob twg ntawm cov hluav taws xob nres hluav taws xob). , Cov mem tes teeb liab tawm tswv yim (tawm tswv yim ib zaug ntawm cov pulses, ntxiv hauv kev faib rau tsav cov stepper lub cev muaj zog A, B theem), cov kev taw qhia cov lus taw qhia (tuaj yeem paub qhov zoo thiab tsis sib hloov ntawm stepper lub cev muaj zog), offline teeb liab tawm tswv yim.
Muaj txiaj ntsig
Lub kauj ruam lub kauj ruam lub cev muaj zog tau muab faib ua ob theem, peb theem thiab tsib theem: ob lub kauj ruam theem ob lub kauj ruam feem ntau yog 1.8 qib thiab theem tsib theem stepping lub suab feem ntau 0.72 degrees. Nrog qhov nce ntawm cov kauj ruam kaum sab xis, cov kauj ruam kaum sab xis txo, thiab qhov tseeb raug tau zoo dua. Cov kauj ruam no lub cev muaj zog yog feem ntau siv. Hybrid stepper motors ua ke qhov zoo ntawm ob qho tib si reactive thiab mus tas li hlau nplaum stepper motors: tus naj npawb ntawm ncej khub yog sib npaug ntawm cov xov tooj ntawm rotor hniav, uas tuaj yeem sib txawv tau ntau yam raws li qhov xav tau; lub winding inductance sib txawv nrog
Rotor txoj haujlwm hloov pauv yog qhov me me, yooj yim kom ua tiav qhov kev ua haujlwm siab; axial magnetization magnetic Circuit Court, siv cov khoom siv hlau nplaum ruaj khov tshiab nrog cov khoom sib nqus siab muaj zog muaj txiaj ntsig, yog qhov zoo rau kev txhim kho ntawm kev ua haujlwm lub zog; rotor sib nqus hlau muab kev zoo siab; tsis muaj tseeb oscillation. [3]


Lub sij hawm tshaj tawm: Mar-19-2020