Kuongorora chikonzero chekudziya kweStepper motor

Chikonzero chekutanga.

Chimwe chezvakanakira zvine musoro zvemota dzestepperndiyo nzira chaiyo yekudzora inogona kuwanikwa muhurongwa hwe open-loop. Kudzora kwe open-loop zvinoreva kuti hapana ruzivo rwemhinduro nezvenzvimbo ye (rotor) runodiwa.

Kudzora uku kunodzivisa kushandiswa kwemasensa anodhura uye zvishandiso zvekupindura zvakaita se optical encoders, nekuti ma input stepping pulses chete ndiwo anofanirwa kuteverwa kuti uzive nzvimbo ye (rotor). Munguva pfupi yapfuura, vamwe vatengi vakataurira mainjiniya edu emota eShangshe kuti ma stepper motors anowanzosangana nematambudziko ekupisa, saka tingagadzirisa sei mamiriro aya? 

1, deredzamota yekutsikaKupisa, kuderedza kupisa ndiko kuderedza kurasikirwa kwemhangura uye kurasikirwa nesimbi. Kuderedza kurasikirwa kwemhangura munzira mbiri, kuderedza yin nemagetsi, izvo zvinoda kusarudzwa kwesimba diki uye simba rakaongororwa diki sezvinobvira kana mota, mota ine zvikamu zviviri, inogona kushandiswa mumota dzakatevedzana kwete mota dzakafanana, asi izvi zvinowanzopesana nezvinodiwa zve torque uye kumhanya kwakanyanya.

2, nekuti mota yasarudzwa, inofanira kushandisa zvizere basa rekudzora hafu yemagetsi otomatiki uye basa rekunze kwemhepo, yekutanga inoderedza otomatiki magetsi kana mota yamira, yekupedzisira inongodzima magetsi.

3, pamusoro pezvo, subdivision stepper motor drive nekuda kwekushanduka kwemagetsi kuri pedyo ne sinusoidal, harmonics shoma, kupisa kwemotokari kuchava kushoma. Kune nzira shoma dzekuderedza kurasikirwa kwesimbi, voltage level ine chekuita nayo, high voltage drive motor kunyange zvazvo ichizounza kuwedzera kwehunhu hwekumhanya kwakanyanya, asi zvakare inounza kuwedzera kwekugadzirwa kwekupisa. 

4, inofanira kusarudza nhanho yakakodzera yemagetsi emota yekutyaira, ichifunga nezvebhendi repamusoro, kutsvedzerera uye kupisa, ruzha nezvimwe zviratidzo.

Chikonzero chechipiri.

Kupisa kwemota yeStepper kunyangwe kazhinji kusingakanganisi hupenyu hwemota, kune vatengi vazhinji havafanirwe kuiteerera. Asi zvakakomba kunounza mimwe mhedzisiro yakaipa. Sekunge stepper motor internal thermal expansion coefficient yechikamu chimwe nechimwe chekuchinja kwakasiyana kwechimiro uye shanduko diki mumhepo yemukati, zvichakanganisa mhinduro inochinja yemota yestepper, kumhanya kwakanyanya kuchave nyore kurasikirwa nenhanho. Mumwe muenzaniso ndewekuti dzimwe nguva hazvibvumidze kupisa kwakanyanya kwemamota estepper, senge zvishandiso zvekurapa nemidziyo yekuyedza yakanyatsojeka. Saka, kupisa kwemota yestepper kunofanirwa kuve kwakakosha kudzora. Kupisa kwemota kunokonzerwa nezvinhu izvi.

1, power set yemutyairi yakakura kupfuura power yakayerwa yemota

2, kumhanya kwemota kwakanyanyisa kukurumidza

3, mota pachayo ine inertia yakakura uye positioning torque, saka kunyangwe kushanda kwepakati nepakati kuchapisa, asi hakukanganisi hupenyu hwemota. Nzvimbo yekubvisa magineti yemota iri mu130-200 ℃, saka mota iri mu70-90 ℃ chiitiko chakajairika, chero bedzi iri pasi pe130 ℃ kazhinji haisi dambudziko, kana uchinzwa kupisa zvakanyanya, drive current yakaiswa kune angangoita 70% ye rated motor current kana motor speed kuderedza zvimwe.

Chikonzero chechitatu.

Stepper motor se digital actuating element, yave ichishandiswa zvakanyanya mu motion control system. Vazhinji vashandisi neshamwari dzavo mukushandisa stepper motors, vanofunga kuti mota inoshanda nekupisa kukuru, vane kusava nechokwadi, havazivi kana chiitiko ichi chakajairika. Kutaura zvazviri, kupisa chinhu chinowanzoitika kuma stepper motors, asi kupisa kwakadii kunoonekwa sekunge kwakajairika, uye nzira yekuderedza kupisa kwema stepper motors?

 

Zvinotevera tinoita mamwe mapoka ari nyore, tinotarisira kuti mubasa chairo remashandisirwo anoshanda:.

1 musimboti wekudziyisa mota

Tinowanzoona mhando dzese dzemota, mukati memukati uye coil inotenderera. Kutenderera kune simba, simba rinoburitsa kurasikirwa, saizi yekurasikirwa uye resistance uye current squared zvinoenderana nekurasikirwa, iyo inowanzonzi kurasikirwa kwemhangura, kana current isiri standard DC kana sine wave, asiwo kurasikirwa kweharmonic; core ine hysteresis eddy current effect, mune alternating magnetic field ichaburitsawo kurasikirwa, saizi yezvinhu, current, frequency, voltage, iyo inonzi iron loss. Kurasikirwa kwemhangura uye kurasikirwa kwesimbi zvicharatidzwa muchimiro chekupisa, nokudaro zvichikanganisa kushanda kwemota. Stepper motors dzinowanzo tevera positioning accuracy uye torque output, kushanda kwacho kwakaderera, current inowanzo kuve yakakura, uye high harmonic components, frequency ye current alternation inosiyanawo nekumhanya, uye nekudaro stepper motors dzinowanzo kuve nekupisa, uye mamiriro acho akakomba kupfuura general AC motor.

2 stepper motor kupisa kwakaringana

Kuwanda kwekubvumidzwa kwekupisa kwemota kunoenderana zvakanyanya nedanho remukati memota. Kupisa kwemukati kunoparadzwa chete kana tembiricha yakakwira (inopfuura madhigirii 130). Saka chero bedzi mukati memota isingapfuure madhigirii 130, mota haizokuvadzi rin'i, uye tembiricha yepamusoro ichave iri pasi pemadhigirii 90 panguva iyoyo. Nokudaro, tembiricha yepamusoro yemota yestepper iri pamadhigirii 70-80 yakajairika. Nzira iri nyore yekuyera tembiricha inobatsira point thermometer, unogona zvakare kuona kuti: neruoko unogona kubata anopfuura masekondi 1-2, kwete kupfuura madhigirii 60; neruoko unogona kubata chete, anenge madhigirii 70-80; madonhwe mashoma emvura anokurumidza kupwanyika, anopfuura madhigirii 90.

Kupisa mota ine stepper 3 nekuchinja kwekumhanya

Kana uchishandisa tekinoroji yekufambisa magetsi inoramba iripo, mota yestepper iri pakumhanya kwakadzika uye kwakadzika, magetsi acharamba aripo kuti arambe achiburitsa torque nguva dzose. Kana kumhanya kwacho kwakakwira kusvika pamwero wakati, simba remukati remota rinokwira, magetsi anodzikira zvishoma nezvishoma, uye torque inodzikirawo. Nokudaro, mamiriro ekupisa nekuda kwekurasikirwa nemhangura anoenderana nekumhanya. Kumhanya kwakadzika uye kwakadzika kunowanzo gadzira kupisa kwakanyanya, nepo kumhanya kwakadzika kuchigadzira kupisa kwakadzika. Asi kurasikirwa nesimbi (kunyangwe kuri kudiki) shanduko hadzina kufanana, uye kupisa kwemota yese ndiko kuunganidzwa kwezvose zviri zviviri, saka zviri pamusoro apa ingori mamiriro ezvinhu akajairika.

4 kupisa kunokonzerwa nekugumburwa

Kunyangwe kupisa kwemota kazhinji kusingakanganisi hupenyu hwemota, ruzhinji rwevatengi havafanire kuiteerera. Asi zvakakomba zvichaunza mhedzisiro yakaipa. Sekusiyana kwema coefficients ekuwedzera kwekupisa kwezvikamu zvemukati memota zvinotungamira kukuchinja kwekumanikidzwa kwechimiro uye shanduko diki mugedhi remhepo yemukati, zvichakanganisa mhinduro inochinja yemota, kumhanya kwakanyanya kuchave nyore kurasikirwa nespeed. Mumwe muenzaniso ndewekuti dzimwe nguva hazvibvumidze kupisa kwakanyanya kwemota, senge michina yekurapa nemidziyo yekuyedza yakanyatsojeka. Saka, kugadzirwa kwemotota kunofanirwa kudzorwa sezvinodiwa.

 5 Maitiro ekuderedza kupisa kwemota

Kuderedza kugadzirwa kwekupisa, ndiko kuderedza kurasikirwa kwemhangura uye kurasikirwa nesimbi. Kuderedza kurasikirwa kwemhangura munzira mbiri, kuderedza kuramba uye simba remagetsi, izvo zvinoda kusarudzwa kwesimba remagetsi diki uye simba remagetsi rakayerwa diki sezvinobvira kana mota, mota ine zvikamu zviviri, ichigona kushandisa mota mumutsara isina mota yakafanana. Asi izvi zvinowanzopesana nezvinodiwa zve torque uye kumhanya kwakanyanya. Kune mota yakasarudzwa, basa rekudzora hafu yemagetsi otomatiki uye basa re offline rinofanira kushandiswa zvizere, rekutanga rinoderedza simba remagetsi otomatiki kana mota yamira, uye rekupedzisira rinongobvisa simba remagetsi. Pamusoro pezvo, kupatsanurwa kwedhiraivha, nekuti waveform yemagetsi iri pedyo ne sinusoidal, harmonics shoma, kupisa kwemotokari kuchavewo kushoma. Kune nzira shoma dzekuderedza kurasikirwa kwesimbi, uye simba remagetsi rine chekuita naro. Kunyangwe mota inotyairwa nemagetsi akawanda ichiunza kuwedzera kwehunhu hwekumhanya kwakanyanya, inounzawo kuwedzera kwekugadzirwa kwekupisa. Saka unofanirwa kusarudza simba remagetsi rekutyaira rakakodzera, uchifunga nezvekumhanya kwakanyanya, kupfava uye kupisa, ruzha nezvimwe zviratidzo.

Kune marudzi ese emota dzinofamba netsoka, mukati mayo mune musimboti wesimbi nesimbi inotenderera. Kutenderera kune simba, simba rinoburitsa kurasikirwa, saizi yekurasikirwa inoenderana nechiyero chesimba resimbi nemagetsi, izvo zvinowanzonzi copper meteor, kana simba remagetsi risiri standard DC kana sine wave, asiwo harmonic loss; musimboti une hysteresis eddy current effect, mumunda unochinjana magineti uchaburitsawo kurasikirwa, saizi yezvinhu, simba remagetsi, frequency, voltage, iyo inonzi iron loss. Kurasikirwa nemhangura nekurasikirwa nesimbi zvicharatidzwa muchimiro chekupisa, nokudaro zvichikanganisa kushanda kwemota. Stepper motors dzinowanzo tevera kurongeka kwenzvimbo uye torque output, kushanda kwadzo kwakaderera, simba remagetsi rinowanzova rakakura, uye zvikamu zve harmonic zvakakwirira, frequency yekuchinjana kwemagetsi inosiyanawo nekumhanya, uye nekudaro stepper motors dzinowanzo pisa, uye mamiriro acho akakomba kupfuura mota yeAC.