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DC Vagadziri vemota muChina

DC Vagadziri vemota muChina

A DC mota mota inoshandura DC magetsi emagetsi kuita magetsi. Nekuda kwekumhanyisa kwayo yekumhanyisa mirau kuita, inoshandiswa zvakanyanya mugetsi yemagetsi. Zvinoenderana neyekufadza modhi, DC motors akakamurwa kuva matatu marudzi: zvachose magineti, akaparadzaniswa nyaradzo uye kuzvidzora kunyengana. Pakati pavo, kuzvidzora kwakakamurwa kuita mhando nhatu: yakafanana nyaradzo, nhevedzano nyaradzo uye mukomboni kunyunyuta.


Kana iyo DC magetsi inopa simba kune iyo armature inotenderera kuburikidza nebhurashi, iyo N-pole yakaderera conductor pane armature pamusoro inogona kuyerera ikozvino munzira imwechete. Maererano nemutemo wekuruboshwe, kondakita achagamuchira torque inopikisa; iyo S-pole yakadzika chikamu cheiyo armature surface Iyo conductor inoyererawo munzira imwechete, uye maererano neruboshwe-ruboshwe mutemo, conductor ichaiswawo pasi penguva inopikisa. Nenzira iyi, iyo yese armature winding, kureva kuti, rotor, inotenderera inopesana newachi, uye inopinza DC magetsi emagetsi anoshandurwa kuita mechanical simba rinobuda pane rotor shaft. Inosanganisira stator uye rotor. Stator: base, main magnetic pole, commutating pole, brashi mudziyo, nezvimwewo; Rotor (armature): armature core, armature winding, commutator, shaft uye fan, nezvimwe.

DC Vagadziri vemota muChina

Chimiro chekutanga
Yakakamurwa kuita zvikamu zviviri: stator uye rotor. Ongorora: Usavhiringa mufambisi nemufambi.
Iyo stator inosanganisira: main magnetic pole, furemu, chinjana chekuchinja, mudziyo webrashi, nezvimwe.
Iyo rotor inosanganisira: armature musimboti, armature ichitenderera, commutator, shaft, fan, nezvimwe.
Rotor kuumbwa
Iyo rotor chikamu cheiyo DC mota inoumbwa neiyo armature musimboti, armature, mutengesi pamwe nezvimwe zvigadzirwa. Izvo zvikamu zviri muchimiro zvinotsanangurwa zvakadzama pazasi.
1. Armature musimboti chikamu: basa rayo ndere kusimbisa kuburitsa armature ichitenderera uye kudzoreredza iyo magnetic flux, kuitira kudzikisa eddy parizvino kurasikirwa uye hysteresis kurasikirwa mune yekumusoro armature kana mota iri kushanda.
2. Armature chikamu: basa nderekugadzira electromagnetic torque uye induced electromotive simba, uye kuita simba rekushandura. The armature winding ine akawanda coils kana girazi faibha-coated flat simbi yemhangura waya kana simba enameled waya.
3. Mufambisi anonziwo commutator. Mune mota yeDC, basa rayo ndere kushandura ikozvino yeDC magetsi emagetsi pabhurashi kuita yekutaurirana ikozvino mumhepo inomonereka, kuitira kuti tsika yemagetsi torque igadzikane. Mujenareta, inoshandura iyo electromotive simba rezvombo rinopinda muDC electromotive simba rinobuda pamagumo ebhurashi.
Iyo commutator inoshongedzwa nemica pakati pemasilinda anoumbwa nezvidimbu zvakawanda, uye magumo maviri ega ega coil yearmature winding akabatana zvakasiyana kune zvidimbu zviviri zvinofamba. Basa remukombi muDC jenareta ndere kushandura kupisa kwemagetsi kuchinjika mumhepo inomonereka kuita iyo DC electromotive simba pakati pemabhurashi. Ikozvino inopfuura nemutoro, uye iyo DC jenareta inoburitsa simba remagetsi kumutoro. Panguva imwecheteyo, iyo armature coil iri zvakare Panofanira kunge paine ikozvino inopfuura nepakati. Inopindirana nemagnetic field kugadzira electromagnetic torque, uye maitiro ayo anopesana neiyo jenareta. Pfungwa yepakutanga inongoda kudzvanya iyi magnetic field torque kuti ichinje armature. Naizvozvo, kana jenareta ichiburitsa simba remagetsi kumutoro, inoburitsa simba remagetsi kubva kune yekutanga pfungwa, kupedzisa basa reDC jenareta kushandura simba remagetsi kuita simba remagetsi.

kupatsanura
Excitation nzira
Iyo yekukurudzira nzira yeDC mota inoreva dambudziko rekupa simba kune inosimudzira mhepo uye kugadzira iyo magnetomotive simba rekunakidzwa kumisikidza iyo huru magineti. Zvinoenderana neakasiyana nzira dzekukurudzira, DC mota dzinogona kukamurwa kuita anotevera marudzi:
1. Separately Excited DC Motor
Iko hakuna hukama pakati pemunda unomonereka uye mhepo inotenderedza, uye DC mota inofambiswa nemamwe magetsi eDC kumunda wemhepo inonzi yakaparadzana-inofadza DC mota. Anogara magineti eDC mota anogona zvakare kutorwa seakaparadzana anofara DC mota.
2. Shunt Excited DC Motor
Iyo yekuwedzeredza mhepo ye shunt-inofadza DC mota yakabatana mukufambirana neiyo armature winding. Se shunt-excited jenareta, iyo terminal voltage kubva mumotokari pachayo inopa simba kumunda wemhepo; se shunt-excited motor, iyo munda inomonereka uye armature inogovera imwechete simba sosi, iyo yakafanana neyakasiyana-inofadza DC mota maererano nekuita.

DC Vagadziri vemota muChina
3. Series Excited DC Motor
Mushure memunda mhepo yekuteedzera-inofadza DC mota yakabatana munhevedzano neiyo armature winding, yakabatana neiyo DC magetsi. Iyo yekunakidzwa ikozvino yeiyi DC mota ndiyo armature ikozvino.
4. Compound Excitation DC Motor
Compound-excited DC motors dzine maviri ekufambisa mamhepo: shunt excitation uye series excitation. Kana iyo magnetomotive simba inogadzirwa neyakatevedzana inomonereka iri munzira imwe chete neiyo magnetomotive simba inogadzirwa ne shunt winding, inodaidzwa kuti chigadzirwa musanganiswa excitation. Kana mauto maviri emagnetomotive aine mativi akapesana, anodaidzwa kuti musiyano wemukomboni excitation.
DC mota dzine nzira dzakasiyana dzekukurudzira dzine maitiro akasiyana. Kazhinji, iwo makuru ekufambisa modhi eDC motors ndeye shunt excitation, nhevedzano excitation uye kukomponi excitation, uye huru mafambiro emagetsi eDC majenareta ari akasiyana excitation, shunt excitation uye compound excitation.
Features
(1) Yakanaka yekumhanyisa mutemo kuita. Iyo inonzi "speed regulation performance" inoreva mota iri pasi pemamwe mamiriro emutoro, zvinoenderana nezvinodiwa, inoshandura kukurumidza kumhanya kwemota. Iyo DC mota inogona kuona yunifomu uye yakatsetseka isina nhanho yekumhanyisa kudzora pasi pekuremerwa mamiriro ezvinhu, uye iyo yekumhanyisa mutemo renji yakafara.
(2) Hombe yekutanga torque. Iyo yekumhanyisa kugadzirisa inogona kuitika zvakaenzana uye nehupfumi. Naizvozvo, michina yese inotanga pasi pemitoro inorema kana inoda yunifomu yekumhanyisa kumhanya, senge mahombe ekutenderedza anotenderedza, hoist, emagetsi locomotives, tram, nezvimwewo, shandisa DC.
Motor dhonza.

DC Vagadziri vemota muChina
Iko hakuna kupatsanurwa kwebhurashi
1. Brushless DC mota: Brushless DC mota ndiko kuchinjanisa kwe stator uye rotor yeyakajairwa DC mota. Rotor yayo igineti yekusingaperi kugadzira mhepo-gap magineti flux: iyo stator isimba uye ine akawanda-chikamu mhepo. Muchimiro, yakafanana neyechigarire magineti synchronous mota.
Chimiro cheiyo stator ye brushless DC mota yakafanana neyeyakajairika synchronous mota kana induction mota. Embed multi-phase windings (nhatu-phase, mana-phase, mashanu-phase, etc.) musimbi core. Iwo mahwindi anogona kubatanidzwa mune nyeredzi kana delta, uye akabatana kune yega yega simba chubhu ye inverter yekuchinja zvine musoro. Iyo rotor inowanzo shandisa zvisingawanzo zvepasi zvinhu zvine kumanikidza kwakanyanya uye yakakwirira remanence, senge samarium cobalt kana neodymium iron boron, nekuda kwenzvimbo dzakasiyana dzemagineti zvinhu mumagineti pole. Inogona kukamurwa kuva pamusoro pemhando yemagineti matanda, akaiswa magineti mapango uye mhete yemagineti matanda. Sezvo muviri wemota iri inogara magineti mota, itsika kudaidza brushless DC mota zvakare inogara magineti brushless DC mota.
2. Brushed DC mota: Iwo maviri mabhurashi (copper brashi kana kabhoni brashi) yebrashi mota yakagadzikwa pachivharo chekumashure chemota kuburikidza nechigaro chinodzivirira, uye mapango akanaka uye asina kunaka emagetsi anounzwa zvakananga kune inverter. ye rotor, uye chikamu chinoshandurwa. Chishandiso chinobatanidza makoiri pa rotor, uye polarity yealternating yemakoiri matatu inogara ichichinjika kuti iite simba rine magineti maviri akaiswa paimba kuti atenderere. Sezvo inverter uye rotor zvakagadziriswa pamwe chete, uye brashi inogadziriswa pamwe chete neimba (stator), bhurashi uye inverter inoramba ichisveta pakatarisana apo motokari inotenderera, ichiita kupikisa kwakawanda uye kupisa. Nokudaro, kushanda kweiyo brushed motor yakaderera uye kurasikirwa kwakakura zvikuru. Asi zvakare ine zvakanakira zvekugadzira nyore uye mutengo wakaderera.

Shandura mafambiro ekutenderera kweDC mota
Pane nzira mbiri dzekushandura nzira yekutenderera yeDC mota:
Imwe ndiyo nzira yekubatanidza yearature reverse, ndiko kuti, kuchengetedza iyo terminal voltage polarity yemunda inomonereka isina kuchinjika, uye mota inodzoserwa kumashure nekushandura polarity yearature winding terminal voltage;
Yechipiri ndeye reverse yekubatanidza yemunda unomonereka, ndiko kuti, kuchengetedza polarity yearmature winding end voltage isina kuchinjika, uye mota inogona kugadziridzwa nekuchinja polarity yemunda inomonereka yekupedzisira voltage. Kana iyo voltage polarity yeaya maviri achichinja panguva imwe chete, kutenderera kutenderera kwemota hakuchinji.
Kufara kwakasiyana uye shunt-kunakidzwa DC mota dzinowanzo tora iyo armature reverse yekubatanidza nzira kuti uwane kumberi uye kudzosera kumashure kutenderera. Separaly excited uye shunt-excited DC motors hazvina kukodzera kushandisa munda inomonereka reverse yekubatanidza nzira yekubudirira kumberi uye neshure kutenderera nekuti munda unomonereka une nhamba huru yekutendeuka uye hombe inductance. Kana kutenderedzwa kwemunda kuchidzoserwa shure, simba guru rinokonzerwa ne electromotive richagadzirwa mumunda unomonereka. Izvi zvinokuvadza insulation pakati peblade uye munda unomonereka.

DC Vagadziri vemota muChina
Chikonzero nei iyo yakatevedzana-inonakidza DC mota ichifanira kutora munda inotenderedza reverse yekubatanidza nzira yekuona kumberi uye kutenderera kutenderera imhaka yekuti voltage kumativi ese earature yeakateedzana-inonakidza DC mota yakakwira, uye magetsi pazvose. migumo yemunda inomonereka yakadzikira kwazvo, saka reverse kubatana kuri nyore. Mutemo.

DC Motor vagadziri muChina. DC mota dzinoshandisa magineti echigarire kana magineti emagetsi, mabhurashi, ma commutators uye zvimwe zvinhu. Mabhurashi uye ma commutator anoramba achipa ekunze DC simba kune coil ye rotor, uye shandura kutungamira kweiyo yazvino munguva yekugonesa rotor Ramba uchitenderera munzira imwechete.

Nheyo yemota uye jenareta zvakangofanana, uye kutungamira kwekushandurwa kwesimba kwakasiyana. Jenareta inoshandura simba remagetsi uye simba rekinetic kuva simba remagetsi kuburikidza nemutoro (zvakadai sesimba remvura, simba remhepo). Kana pasina mutoro, jenareta haizove neyazvino inoyerera kunze. Kudyidzana kwemamota emagetsi, magetsi emagetsi, uye madiki-controller akaumba chirango chitsva chinonzi motor control. Usati washandisa mota, unofanirwa kuziva kana sosi yemagetsi iri DC kana AC. Kana iri AC, iwe zvakare unofanirwa kuziva kana iri-nhatu-chikamu kana imwechete-chikamu. Kubatanidza simba risiri iro rinokonzera kurasikirwa kusingakoshi uye njodzi. Mushure mekunge mota yatenderedzwa, kana mutoro usina kubatanidzwa kana mutoro wakareruka kuitira kuti mota imhanye nekukurumidza, iyo induced electromotive simba yakasimba. Panguva ino, voltage pamotokari ndiyo voltage inopihwa nemagetsi kubvisa iyo induced voltage, saka yazvino inoshaikwa. Kana mutoro wemotor uchirema uye kumhanya kwekutenderera kuchinonoka, iyo hama inokonzeresa electromotive simba idiki. Naizvozvo, iyo magetsi inoda kupa yakakura ikozvino (simba) kuburitsa / kushanda zvinoenderana nesimba rakakura rinodiwa.

DC Vagadziri vemota muChina

Iyo yekugadzira maitiro e brushless DC mota ine zvimwe zvinodikanwa zvekukurumidza kudzora kuita. Kupfupisa, mupepeti we brushless DC vagadziri vemotikari anosuma zvinotevera zvinhu zvitatu zvekumhanya kudzora zvinodiwa zveiyo yekumhanyisa control system:
1. Speed ​​​​regulation, mukati meimwe nhanho yekumhanya yakakwira uye yakaderera kumhanya, kumhanya kunogona kugadziridzwa mune sub-giya (yakarongwa) kana mushe (zvisingagumi);
2. Kumhanya kwakadzikama, kushanda kwakadzikama pakumhanya kunodiwa nekumwe kurongeka, uye pasina kunyanyisa kukurumidza kuchinjika pasi pekukanganisa kwakasiyana-siyana kuti uve nechokwadi chemhando yechigadzirwa;
3. Zvishandiso zvine kukurumidza / kuderedzwa, kutanga uye kubhureki kazhinji kunoda kukurumidza uye kuderedzwa nekukurumidza sezvinobvira kuti uvandudze kubereka, uye michina isingakodzeri kuchinja kukuru kwekukurumidza kunoda kutanga uye kubhureki seyakatsetseka sezvinobvira.
Uye zvakare, kune izvo zviviri zvekutanga zvinodiwa, maviri ekumhanyisa control zviratidzo anotsanangurwa se "speed control range" uye "static difference rate".
Chinodiwa chemuchina ndechekuti brushless DC mota inopa AC yekumhanya siyana yereshiyo yekumhanya kwakadzika kusvika yakaderera. Iyo mota ine yakakwira uye yakaderera kumhanya payakayerwa mutoro. Pamakina ane mutoro wakareruka kwazvo, inogona kuwana yakakwira uye yakaderera kumhanya pakuremerwa.
Static mutsauko mwero: Kana sisitimu ichimhanya pane imwe kumhanya, chiyero chekumhanya chinoenderana kana iyo brushless DC mota mutoro unowedzera kubva pane yakakodzera hapana-mutoro kusvika kune yakayerwa kukosha uye yakakodzera hapana-mutoro kumhanya inonzi static musiyano chiyero. .
Iyo static musiyano chiyero inoshandiswa kuyera kugadzikana kwekumhanya kweiyo yekumhanyisa control system kana mutoro wachinja. Izvo zvinoenderana nekuoma kweiyo mechanical maitiro. Kunyanya kuoma kwehunhu, kudiki kweiyo static musiyano mwero, uye kukwirisa kugadzikana kwekumhanya.

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