Stepper mota kudziyisa chikonzero chekuongorora

Chikonzero chimwe.

Imwe yezvakanakira zvakanakirastepper motorsndiyo chaiyo kudzora iyo inogona kuwanikwa mune yakavhurika-loop system. Open-loop control zvinoreva kuti hapana ruzivo rwemhinduro nezve (rotor) chinzvimbo chinodiwa.

Kudzora uku kunodzivirira kushandiswa kwemasensa anodhura uye zvigadziriso zvemhinduro senge optical encoder, nekuti iyo chete yekupinza inotsika pulses inofanirwa kuteverwa kuti uzive nzvimbo ye (rotor). Nguva pfupi yadarika, vamwe vatengi vakaratidza kune yedu Shangshe mota mainjiniya kuti stepper motors zvakare inosangana nematambudziko ekupisa, saka sei kugadzirisa mamiriro aya? 

1, kuderedzastepper motorkupisa, kuderedza kupisa ndiko kuderedza kurasikirwa kwemhangura uye kurasikirwa kwesimbi. Deredza kurasikirwa kwemhangura mumativi maviri, kuderedza yin yemagetsi uye yemazuva ano, iyo inoda kusarudzwa kwekupikisa kuduku uye kurongerwa ikozvino sediki sezvinobvira apo motokari, maviri-pase stepper motor, inogona kushandiswa mumutsara wemotokari kwete kufanana nemotokari, asi izvi zvinowanzopesana nezvinodiwa zve torque uye kumhanya kukuru.

2, nekuti mota yakasarudzwa, inofanirwa kushandisa zvizere dhiraivha hafu-yazvino kudzora basa uye offline basa, yekutanga inodzikisira ikozvino kana mota yazorora, iyo yekupedzisira inongocheka iripo.

3, mukuwedzera, kupatsanura stepper mota dhiraivha nekuda kweiyo waveform iri padyo ne sinusoidal, kushoma harmonics, mota yekudziya ichave shoma. Pane nzira shoma dzekudzikisa kurasikirwa kwesimbi, iyo voltage level ine hukama nayo, yakakwira voltage drive mota kunyangwe ichiunza kuwedzera kwehupamhi hwekumhanya hunhu, asi zvakare inounza kuwedzera mukupisa chizvarwa. 

4, inofanira kusarudza yakakodzera dhiraivha mota voltage level, uchifunga nezve yakakwira bhendi, kutsvedzereka uye kupisa, ruzha uye zvimwe zviratidzo.

Chikonzero chechipiri.

Stepper mota kupisa kunyangwe kazhinji isingakanganise hupenyu hwemota, kune vazhinji vatengi havafanire kuterera. Asi zvakakomba zvichaunza mamwe maitiro asina kunaka. Zvakadai senge stepper mota yemukati yekupisa yekuwedzera coefficient yechikamu chimwe nechimwe cheakasiyana masisitimu kushushikana shanduko uye diki shanduko mugero remukati remhepo, zvinokanganisa mhinduro ine simba yeiyo stepper mota, yakakwirira-kumhanya ichave nyore kurasikirwa nhanho. Mumwe muenzaniso ndewekuti dzimwe nguva hadzitenderi kupisa kwakanyanya kugadzirwa kwema stepper motors, senge michina yekurapa uye yakakwirira-chaiyo bvunzo michina. Naizvozvo, kupisa kweiyo stepper mota kunofanirwa kuve kwakakosha kudzora. Kupisa kwemota kunokonzerwa nezvinhu izvi.

1, iyo yazvino yakatarwa nemutyairi yakakura kupfuura yakayerwa ikozvino yemota

2, kumhanya kwemota kunokurumidza

3, iyo mota pachayo ine inertia yakakura uye yekumisikidza torque, saka kunyangwe yepakati-kumhanya kushanda kuchapisa, asi hakukanganisa hupenyu hwemota. Iyo demagnetization poindi yemota mu130-200 ℃, saka mota iri mu70-90 ℃ chinhu chakajairika, chero isingasviki 130 ℃ kazhinji haina dambudziko, kana ukanyatsonzwa kupisa, dhiraivha iripo inoiswa kusvika pamakumi manomwe muzana yeiyo yakatemerwa mota ikozvino kana mota kumhanya kudzikisa imwe.

Chikonzero chetatu.

Stepper mota sedhijitari actuating element, yakashandiswa zvakanyanya mukufamba kudzora system. Vazhinji vashandisi uye shamwari mukushandisa stepper motors, vanonzwa kuti mota inoshanda nekupisa kukuru, kusava nechokwadi, havazivi kana chiitiko ichi chakajairika. Muchokwadi, kupisa chinhu chakajairika cheiyo stepper motors, asi ndeipi dhigirii yekupisa inoonekwa seyakajairika, uye nzira yekudzikisa iyo stepper mota kupisa?

 

Izvi zvinotevera tinoita kumwe kurongeka kwakapfava, tinovimba mune iro chairo basa rekushandisa rinoshanda :.

1 mota kupisa musimboti

Isu tinowanzo kuona ese marudzi emotor, iyo yemukati musimboti uye inomonereka coil. Iyo inomonereka ine kushorwa, ine simba inoburitsa kurasikirwa, saizi yekurasikirwa uye kuramba uye ikozvino squared proportional kune kurasikirwa, iyo inowanzonzi yekurasikirwa kwemhangura, kana ikozvino isiri standard DC kana sine wave, asiwo harmonic kurasikirwa; musimboti une hysteresis eddy ikozvino mhedzisiro, mune inochinjika magineti inoburitsawo kurasikirwa, saizi yezvinhu, zvazvino, frequency, voltage, inodaidzwa kuti iron kurasikirwa. Kurasikirwa kwemhangura uye kurasikirwa kwesimbi kucharatidzwa nenzira yekupisa, nokudaro kukanganisa kushanda kwemotokari. Stepper motors kazhinji inoteedzera kurongeka kweiyo uye torque kubuda, kushanda kwacho kwakadzikira, kwazvino kunowanzo kuve kwakakura, uye yakakwirira harmonic zvikamu, kuwanda kwekuchinjika kwazvino kunosiyana nekumhanya, uye nekudaro stepper motors dzinowanzove nekupisa, uye mamiriro acho akakomba kupfuura general AC mota.

2 stepper mota kupisa inonzwisisika renji

Mwero wekuti kugadzirwa kwemota kunobvumidzwa kunoenderana zvakanyanya neiyo mota yemukati yekuvharisa level. Iko kuvharidzirwa kwemukati kuchaparadzwa chete pakupisa kwepamusoro (pamusoro pe130 degrees). Saka chero bedzi iyo yemukati isingapfuuri madhigirii 130, mota haizokuvadza mhete, uye tembiricha yepasi ichave iri pasi pe90 degrees panguva iyoyo. Naizvozvo, iyo inotsika mota yepasi tembiricha mu70-80 madhigirii yakajairika. Yakareruka tembiricha yekuyera nzira inobatsira poindi thermometer, iwe unogona zvakare zvakangoita kuona: neruoko runogona kubata anopfuura 1-2 masekonzi, kwete anopfuura 60 madhigirii; neruoko runogona kungobata, anenge 70-80 madhigirii; madonhwe mashoma emvura akakurumidza kunyungudika, inodarika 90 madhigirii

3 stepper mota yekudziya nekumhanyisa shanduko

Paunenge uchishandisa inogara yazvino dhiraivha tekinoroji, iyo inotsika mota pa static uye yakaderera kumhanya, yazvino icharamba yakamira kuti irambe ichigara torque kubuda. Kana iyo kumhanya yakakwira kune imwe dhigirii, iyo mota yemukati counter inosimuka, yazvino inodonha zvishoma nezvishoma, uye torque inodonha zvakare. Nokudaro, mamiriro ekupisa nekuda kwekurasikirwa kwemhangura ichave yakakurumidza kuvimba. Kumhanya kwakadzikama uye kwakaderera kunowanzo gadzira kupisa kwakanyanya, ukuwo kumhanya kwakanyanya kunogadzira kupisa kwakaderera. Asi kurasikirwa kwesimbi (kunyangwe chikamu chidiki) shanduko hadzina kufanana, uye kupisa kwemota kwese ndiko kuwanda kwezviviri, saka zviri pamusoro ndizvo chete mamiriro ezvinhu.

4 kupisa kwakaunzwa nekukanganisa

Kunyangwe kupisa kwemota kazhinji kusingakanganisi hupenyu hwemota, ruzhinji rwevatengi havafanire kuterera. Asi zvakakomba zvichaunza kumwe kukanganisa. Zvakadai semhando dzakasiyana-siyana dzekuwedzera kwekupisa kwezvikamu zvemukati zvemotokari zvinotungamirira kukuchinja kwekunetseka kwemaitiro uye kuchinja kuduku mukati memhepo yemukati gap, zvichakanganisa mhinduro yemagetsi yemotokari, kukurumidza-kumhanya kuchava nyore kurasikirwa. Mumwe muenzaniso ndewekuti dzimwe nguva hadzitenderi kupisa kwakanyanya kwemota, senge michina yekurapa uye yakakwirira-chaiyo yekuyedza michina. Naizvozvo, chizvarwa chekupisa chemota chinofanirwa kudzorwa sezvinodiwa.

 5 Maitiro ekudzikisa kupisa kwemota

Kuderedza kupisa chizvarwa, ndiko kuderedza mhangura kurasikirwa uye simbi kurasikirwa. Deredza kurasikirwa kwemhangura mumativi maviri, kuderedza kupikisa uye ikozvino, izvo zvinoda kusarudzwa kwekupikisa kuduku uye kurongerwa ikozvino sediki sezvinobvira apo motokari, maviri-phase motor, inogona kushandisa motokari mumutsara pasina parallel motor. Asi izvi zvinowanzopesana nezvinodiwa zve torque uye kumhanya kwakanyanya. Kune iyo mota yakasarudzwa, iyo drive's otomatiki hafu-ikozvino kudzora basa uye offline basa rinofanirwa kushandiswa zvizere, yekutanga inodzikisira yazvino kana mota yazorora, uye iyo yekupedzisira inongocheka iripo. Uye zvakare, iyo kupatsanura dhiraivha, nekuti yazvino waveform iri padyo ne sinusoidal, shoma harmonics, mota yekudziya ichavewo shoma. Pane nzira shoma dzekudzikisa kurasikirwa kwesimbi, uye iyo voltage level ine hukama nayo. Kunyangwe mota inotyairwa nepamusoro-voltage ichaunza kuwedzera kwe-high-speed maitiro, inounzawo kuwedzera kwechizvarwa chekupisa. Saka sarudza iyo yakakodzera drive voltage level, uchifunga nezvekumhanya kwakanyanya, kutsvedza uye kupisa, ruzha uye zvimwe zviratidzo.

Kune ese marudzi ee stepper motors, iyo yemukati inoumbwa nesimbi musimboti uye inomonereka coil. Kupeta kunopikisa, kusimba kunobereka kurasikirwa, ukuru hwekurasikirwa kunoenzanirana neskweya yekupikisa uye ikozvino, iyo inowanzonzi semhangura meteor, kana ikozvino isiri iyo DC kana sine wave, asiwo harmonic kurasikirwa; musimboti une hysteresis eddy ikozvino mhedzisiro, mune inochinjika magineti inoburitsawo kurasikirwa, saizi yezvinhu, zvazvino, frequency, voltage, inodaidzwa kuti iron kurasikirwa. Kurasikirwa kwemhangura uye kurasikirwa kwesimbi kucharatidzwa nenzira yekupisa, nokudaro kukanganisa kushanda kwemotokari. Stepper motors kazhinji inoteedzera kurongeka kweiyo uye torque kubuda, kushanda kwacho kwakadzikira, kwazvino kunowanzo kuve kwakakura, uye yakakwirira harmonic zvikamu, kuwanda kwekuchinjika kwazvino kunosiyana nekumhanya, uye nekudaro stepper motors dzinowanzove nekupisa, uye mamiriro acho akakomba kupfuura general AC mota.