Mamota estepper anodzikira sei?

Semugadziri wemagetsi,mota yekutsikandeimwe yezvigadzirwa zvakakosha zvemechatronics, iyo inoshandiswa zvakanyanya muhurongwa hwakasiyana-siyana hwekudzora otomatiki. Nekuvandudzwa kwe microelectronics uye tekinoroji yekugadzira chaiyo, kudiwa kwemota dzestepper kuri kuwedzera zuva nezuva, uye mota dzestepper negear transmission mechanism zvakabatana kuita reduction gear box, asiwo mune akawanda mashandisirwo ekushandisa kuona, nhasi diki uye munhu wese pamwe chete kuti anzwisise rudzi urwu rwereduction gear transmission mechanism.

 

Mamota estepper anodzikira sei?

Mota yeStepper inoshandiswa zvakanyanya uye inoshandiswa zvakanyanya mudhiraivha, inowanzo shandiswa nemidziyo yekudzora mafambiro emagetsi kuti iwane mhedzisiro yakanaka yekutumira; uye mota yeStepper inoshandisa michina yekudzora mafambiro emagetsi nenzira dzinoshandiswa, dzakadai sebhokisi rekuderedza giya, encoder, controller, pulse signal, nezvimwewo.

 

Kuderera kwesimba rechiratidzo chekurova kwemoyo:Kumhanya kwekutenderera kwemota yestepper, kwakavakirwa pakuchinja kwechiratidzo chekupinda kwepulse kuti chishanduke. Mudzidziso, kupa mutyairi pulse, mota yestepper inotenderera kona yenhanho (kupatsanurwa kwekona yechikamu chenhanho). Mukuita, kana chiratidzo chepulse chikachinja nekukurumidza, mota yestepper nekuda kwemhedzisiro yemukati ye reverse electric potential, mhinduro yemagineti pakati perotor ne stator haizotevedzere shanduko muchiratidzo chemagetsi, inotungamira mukuvharika uye kurasikirwa nematanho.

 

Kuderedza simba rebhokisi rekudzikisa:mota yestepper ine gearbox yekuderedza inoshandiswa pamwe chete, mota yestepper inoburitsa kumhanya kwakanyanya, kumhanya kwakaderera kwetorque, yakabatana negearbox yekuderedza, gearbox yemukati yekuderedza giya ine meshing transmission yakagadzirwa nereduction ratio, kumhanya kukuru kwestepper motor kunoderedzwa, uye kusimudzira torque yekutumira kuti iwane mhedzisiro yakanaka yekutumira; mhedzisiro yekuderedza inoenderana nereduction ratio yegearbox, reduction ratio yakakura, speed yekubudisa ishoma, uye vice versa. Uye vice versa.

 

Kumhanya kwekudzora kwekuwedzera kwemugero:Muchirongwa chesoftware, ma "exponential curve" anoverengwa kekutanga anochengetwa mu "computer memory", anoratidza sarudzo painenge ichishanda. Kazhinji, kupedzisa kwekumhanyisa mota ye "stepper" uye nguva yekudzikamisa mota inosvika 300ms kana kupfuura. Kana ukashandisa nguva pfupi yekukasira uye yekudzikamisa mota, kune akawanda ma "stepper motors", zvichave zvakaoma kuwana kutenderera nekukurumidza kwema "stepper motors".

 

Kuderedza simba rekudzora encoder:Kudzora kwePID senzira yekudzora iri nyore uye inoshanda, mu stepper motor drive kwave kushandiswa zvakanyanya. Yakavakirwa pamutengo wakapihwa r (t) uye kukosha chaiko kwekubuda c (t) kugadzira kutsauka kwekutonga e (t), kutsauka kweproportional, integral uye differential kuburikidza nemusanganiswa we linear we control quantity, control object control. Pepa iri rinoshandisa integrated position sensor mu two-phase hybrid stepper motor uye rinogadzira automatic adjustable PI speed controller zvichibva pane position detector uye vector control, iyo inopa hunhu hunogutsa hwe transient pasi pemamiriro ekushanda akasiyana. Zvichibva pa mathematical model ye stepper motor, PID control system ye stepper motor yakagadzirwa uye PID control algorithm inoshandiswa kuwana control quantity yekudzora kufamba kwemota kunzvimbo yakatarwa. Pakupedzisira, zvinosimbiswa ne simulation kuti control ine dynamic response characteristics yakanaka. PID controller ine mabhenefiti echimiro chiri nyore, kusimba kwakanyanya uye kuvimbika kwakanyanya, asi haigone kubata zvinobudirira neruzivo rusina chokwadi musystem.

 

Injini yeStepper inogona kuenzaniswa neichi chinodzikisa simba? Muchikamu chekusarudza stepper motor negearbox, unofanira kuteerera zvinhu izvozvo, uye rudzii rwegearbox runogona kusarudzwa kuti rushandiswe pamwe chete?

 

1. Chikonzero chemota yestepper ine reducer

 

Stepper motor inochinja frequency ye stator phase current, sekuchinja input pulse ye stepper motor drive circuit, kuitira kuti ive kufamba kwe low-speed. Stepper motor ine low-speed yakamirira stepping command, rotor iri kumira, mu low-speed stepping, speed differences ichave yakakura kwazvo, panguva ino, sekushandura kuita high-speed operation, inogona kugadzirisa dambudziko re speed differences, asi torque ichave isina kukwana. Kureva kuti, low speed ichachinja torque, uye high speed ichave isina kukwana torque, kudiwa kwekushandisa reducer.

 

2. Mota yestepper inowanzo kuve nereducer chii

 

Reducer rudzi rwegiya rekufambisa, worm drive, giya - worm drive, iyo yakavharirwa mubhokisi rakasimba, inowanzoshandiswa sereducer pakati pe prime mover nemuchina wekushanda, pakati pe prime mover nemuchina wekushanda kana actuator kuti ienderane nekumhanya uye torque transmission; reducer ine mhando dzakasiyana-siyana, zvichienderana nerudzi rwetransmission inogona kukamurwa kuita gear reducer, worm gear reducer uye planetary gear reducer. Zvichienderana nehuwandu hwematanho ekutumira inogona kukamurwa kuita single-stage uye multi-stage reducer; zvichienderana nechimiro chegiya inogona kukamurwa kuita cylindrical gear reducer, bevel gear reducer uye bevel-cylindrical gear reducer; zvichienderana nefomu retransmission arrangement inogona kukamurwa kuita unfolded reducer, shunt reducer uye coaxial reducer. Stepper motor assembly reducers iplanetary reducer, worm gear reducer, parallel gear reducer, filament gear reducer.

 

 

Zvakadini ne stepper motor planetary reducer accuracy?

 

 

Kururama kwereducer kunonziwo return clearance. Kana output end yagadziriswa uye input end yatenderedzwa wachi uye counterclockwise kuti ibudise rated torque +-2% torque pa output end, pane diki angular displacement pa input end ye reducer, uye iyi angular displacement ndiyo return clearance. Unit iyi i "arc minutes", kureva one sixtieth of a degree. Ma return clearance values ​​akajairika anoreva output side ye gearbox. Stepper motor planetary reducer ine high rigidity, high precision (single stage inogona kuwanikwa mukati meminiti imwe), high transmission efficiency (single stage mu 97%-98%), high torque/volume ratio, high maintenance-free, etc.

 

Kururama kwekufambisa kwemota yeStepper hakugadzirisiki, kona yekumhanya kwemota yestepper inotsanangurwa zvachose nehurefu hwenhanho nenhamba yemapulses, uye huwandu hwemapulses hunogona kuva nhamba yakazara, huwandu hwedhijitari hausi pfungwa yekururama, nhanho imwe nhanho imwe, nhanho mbiri nhanho mbiri. Kururama kwazvino kunogona kugadziriswa ndiko kururama kwekubvisa giya rekudzoka kwebhokisi rebhokisi repasi.

 

1. Nzira yekugadzirisa kururama kwechipika:Kugadziriswa kwe planetary gearbox spindle rotational accuracy, kana kukanganisa kwe machining kwe spindle pachayo kuchizadzisa zvinodiwa, saka kutenderera kwe reducer spindle kunowanzo tsanangurwa ne bearing. Chinhu chikuru chekugadzirisa kutenderera kwe spindle kugadzirisa bearing clearance. Kuchengetedza bearing clearance yakakodzera kwakakosha pakushanda kwezvikamu zve spindle uye hupenyu hwe bearing. Kune rolling bearing, kana paine nzvimbo yakakura, hazvizongoita kuti mutoro ugare wakatarisana ne rolling body munzira yekumanikidzwa, asiwo zvinogadzira chiitiko chakakomba chekushushikana mu bearing inner neouter ring raceway contact, kupfupisa hupenyu hwe bearing, uye kuita kuti spindle centerline drift, zviri nyore kukonzera kudedera kwezvikamu zve spindle. Naizvozvo, rolling bearing adjustment inofanira kunge yakatotakurwa kare, Kuti pave nekukanganiswa kwakati mukati me bearing, kuitira kuti pave nekukanganisika kwakati pakati pe rolling body ne inner neouter ring raceway, nokudaro zvichivandudza kuomarara kwe bearing.

2. Nzira yekugadzirisa mukaha:Giya remagiya remapuraneti panguva yekufamba richaburitsa kukweshana, zvichikonzera shanduko muhukuru, chimiro uye hunhu hwepamusoro pakati pezvikamu, uye kupfeka, kuitira kuti musiyano uripo pakati pezvikamu uwedzere, tinofanira kugadzirisa zvine mwero kuti tive nechokwadi chekuti kufamba pakati pezvikamu kwakarurama.

 

3. Nzira yekubhadhara kukanganisa:zvikamu pachazvo zvinokanganisa kuburikidza negungano rakakodzera, kuitira kuti chiitiko chekuwirirana chigadziriswe panguva yekuputsika, kuve nechokwadi chekururama kwenzira yekufamba kwemidziyo.

 

1. Nzira yakakwana yekubhadhara:Chishandiso chakaiswa nechinhu chinodzikisa mashandiro acho chagadziriswa zvakanaka netafura yebasa kuti chibvise mhedzisiro yakabatana yekururama kwezvikanganiso.