Kodi mfundo yogwiritsira ntchito servo motor ndi chiyani?

Makina a Servo ndi makina owongolera omwe amathandizira kuti kuchuluka kwa zomwe chinthucho chimayang'aniridwa, momwe chinthucho chikuyendetsedwera, momwe chinthucho chilili, ndi zina zotero kuti zitsatire kusintha kosasintha kwa chandamale (kapena mtengo woperekedwa). Servo imadalira makamaka ma pulse kuti ayike. Kwenikweni, zitha kumveka kuti injini ya servo ikalandira kugunda kwa 1, imatembenuza ngodya yofananira ndi kugunda kwa 1 kuti ikwaniritse kusamuka. Chifukwa injini ya servo palokha imakhala ndi ntchito yotumiza ma pulse, kotero nthawi iliyonse injini ya servo ikakhala ndi ntchito yotumiza ma pulse, Kuzungulira ngodya, imatumiza kuchuluka kofananira kwa ma pulse, kotero kuti imamveketsa ma pulse omwe alandilidwa ndi servo. injini, kapena amatchedwa loop yotsekedwa. Mwanjira iyi, dongosololi lidzadziwa kuti ndi ma pulse angati omwe atumizidwa ku servo motor, ndi ma pulse angati omwe adalandiridwa nthawi imodzi. Mwa njira iyi, kuzungulira kwa injini kungathe kuyendetsedwa molondola kwambiri, kuti mukwaniritse malo enieni omwe amatha kufika 0.001mm. 

1.DC servo motors amagawidwa mu maburashi ndi brushless motors. The brush motor ili ndi mtengo wotsika, a kapangidwe kosavuta, torque yayikulu yoyambira, a liwiro lalikulu, kuwongolera kosavuta, ndi kukonza ndikofunikira, koma kukonza ndikovuta (kusintha maburashi a kaboni), kumayambitsa kusokoneza kwa ma elekitiroma komanso kumafuna zofunikira zachilengedwe. Chifukwa chake, itha kugwiritsidwa ntchito m'mafakitale ndi zochitika zapagulu zomwe zimakhudzidwa ndi mtengo.

Galimoto yopanda brush ndi yaying'ono, yopepuka kulemera, yayikulu pakutulutsa, kuyankha mwachangu, kuthamanga kwambiri, inertia yaying'ono, yosalala mozungulira, komanso yokhazikika mu torque. Kuwongolera ndizovuta, zosavuta kuzindikira zanzeru, ndipo njira yake yosinthira zamagetsi ndi yosinthika, ndipo imatha kukhala masikweya mafunde kapena kusintha kwa sine wave. Galimotoyo ndiyopanda kukonza, imagwira ntchito bwino kwambiri, kutentha kwapang'onopang'ono, ma radiation otsika a electromagnetic, moyo wautali, ndipo itha kugwiritsidwa ntchito m'malo osiyanasiyana.

2. AC servo motors ndi motors brushless, zomwe zimagawidwa mu synchronous ndi asynchronous motors. Pakalipano, ma synchronous motors amagwiritsidwa ntchito poyendetsa kayendedwe. Ali ndi mphamvu zambiri ndipo amatha kukwaniritsa mphamvu zazikulu. Inertia yayikulu, liwiro lotsika kwambiri lozungulira, komanso kuchepa mwachangu pamene mphamvu ikuwonjezeka. Choncho, ndi yoyenera kwa otsika-liwiro ndi yosalala kuthamanga ntchito.

3. Rotor mkati mwa servo motor ndi maginito osatha, ndipo U / V / W magawo atatu magetsi oyendetsedwa ndi dalaivala amapanga munda wamagetsi. Rotor imazungulira pansi pakuchita kwa maginito awa. Pa nthawi yomweyo, encoder wa galimoto ndemanga chizindikiro kwa dalaivala, ndi dalaivala malinga ndi mtengo ndemanga Yerekezerani ndi mtengo chandamale ndi kusintha ngodya ya kasinthasintha wa rotor. Kulondola kwa injini ya servo kumatsimikiziridwa ndi kulondola kwa encoder (chiwerengero cha mizere).

Kusiyana kwa magwiridwe antchito pakati pa AC servo mota ndi brushless DC servo mota: AC servo ndiyabwinoko chifukwa imayendetsedwa ndi a sine wave, torque ripple ndi yaying'ono. DC servo ndi mafunde a trapezoidal. Koma DC servo ndiyosavuta komanso yotsika mtengo.