Kusiyana kwamitundu yosiyanasiyana yama mota

1. Kusiyana pakati pa ma mota a DC ndi AC

Chithunzi cha DC motor structure

Chithunzi cha AC motor structure

Ma motors a DC amagwiritsa ntchito magetsi achindunji ngati gwero lamagetsi, pomwe ma motors a AC amagwiritsa ntchito ma alternating current monga gwero lawo lamagetsi.

Mwamadongosolo, mfundo zama motors a DC ndizosavuta, koma mawonekedwe ake ndi ovuta komanso ovuta kuwasamalira. Mfundo yama motors a AC ndizovuta koma mawonekedwe ake ndi osavuta, ndipo ndiosavuta kuyisamalira kuposa ma mota a DC.

Pankhani ya mtengo, ma mota a DC omwe ali ndi mphamvu zomwezo ndi apamwamba kuposa ma AC motors. Kuphatikizapo chipangizo chowongolera liwiro, mtengo wa DC ndi wapamwamba kuposa wa AC. Zoonadi, palinso kusiyana kwakukulu mu kapangidwe ndi kukonza.
Pankhani ya magwiridwe antchito, chifukwa liwiro la ma mota a DC ndi lokhazikika komanso kuwongolera liwiro ndikolondola, zomwe sizimatheka ndi ma motors a AC, ma motors a DC amayenera kugwiritsidwa ntchito m'malo mwa ma mota a AC pansi pakufunika kothamanga kwambiri.
Kuwongolera kuthamanga kwa ma motors a AC ndikovuta, koma kumagwiritsidwa ntchito kwambiri chifukwa mbewu zama mankhwala zimagwiritsa ntchito mphamvu ya AC.

2. Kusiyana pakati pa ma synchronous ndi asynchronous motors

Ngati rotor imayenda pa liwiro lofanana ndi stator, imatchedwa motor synchronous. Ngati sizili zofanana, zimatchedwa asynchronous motor.

3. Kusiyana pakati pa injini wamba ndi variable pafupipafupi

Choyamba, ma motors wamba sangagwiritsidwe ntchito ngati ma frequency mosiyanasiyana. Ma motor wamba amapangidwa molingana ndi ma frequency pafupipafupi komanso ma voliyumu osasunthika, ndipo ndizosatheka kusinthiratu zomwe zimafunikira pakuwongolera kuthamanga kwa ma frequency converter, chifukwa chake sangagwiritsidwe ntchito ngati ma motor frequency frequency.
Zotsatira za ma frequency converter pama motors makamaka pakuchita bwino komanso kutentha kwa ma motors.
Ma frequency converter amatha kupanga magawo osiyanasiyana amagetsi a harmonic ndi apano panthawi yogwira ntchito, kotero kuti mota imayendetsa pansi pa sinusoidal voteji komanso pano. Ma harmonics apamwamba omwe ali mmenemo adzachititsa kuwonongeka kwa mkuwa wa stator, kutayika kwa mkuwa wa rotor, kutaya kwachitsulo ndi kuwonongeka kwina.
Chofunikira kwambiri mwa izi ndi kutayika kwa mkuwa wa rotor. Zotayika izi zipangitsa kuti mota ipange kutentha kwina, kuchepetsa mphamvu, kuchepetsa mphamvu zotulutsa, ndipo kutentha kwa ma mota wamba kumawonjezeka ndi 10% -20%.
Ma frequency converter carrier frequency amachokera ku ma kilohertz angapo mpaka ma kilohertz opitilira khumi, zomwe zimapangitsa kuti mafunde a stator azitha kupirira kukwera kwamphamvu kwambiri, komwe kuli kofanana ndi kugwiritsa ntchito mphamvu yamagetsi yotsika kwambiri pagalimoto, kupangitsa kutembenuka kwapakati. kutchinjiriza injini kupirira mayeso kwambiri.
Ma mota wamba akamayendetsedwa ndi ma frequency converter, kugwedezeka ndi phokoso lobwera chifukwa cha ma elekitiroma, makina, mpweya wabwino ndi zinthu zina zimakhala zovuta kwambiri.
Ma harmonics omwe amapezeka mumagetsi osinthika amasokoneza ma harmonics amtundu wa gawo lamagetsi la mota, kupanga mphamvu zosiyanasiyana zokomera ma elekitiroma, potero kumawonjezera phokoso.
Chifukwa cha kuchuluka kwa ma frequency ogwiritsira ntchito ma mota komanso kusiyanasiyana kwa liwiro lalikulu, kusinthasintha kwa mafunde osiyanasiyana amagetsi amagetsi kumakhala kovuta kupewa kugwedezeka komwe kumachitika m'magawo osiyanasiyana agalimoto.
Pamene mphamvu yamagetsi imakhala yochepa, kutayika komwe kumachitika chifukwa cha ma harmonics apamwamba mu mphamvu yamagetsi kumakhala kwakukulu; chachiwiri, liwiro la injiniyo likachepetsedwa, kuchuluka kwa mpweya woziziritsa kumachepa molingana ndi kiyibodi ya liwiro, zomwe zimapangitsa kutentha kwa injiniyo kusatayidwa, kutentha kumawonjezeka kwambiri, ndipo zimakhala zovuta kukwaniritsa. nthawi zonse torque linanena bungwe.

4. Kusiyana kwapangidwe pakati pa ma motors wamba ndi ma motor frequency frequency

01. Zofunikira zapamwamba zotchingira
Nthawi zambiri, mulingo wotsekemera wa ma frequency frequency motors ndi F kapena apamwamba. Kutsekera pansi ndi mphamvu yotchinga ya waya iyenera kulimbikitsidwa, ndipo mphamvu ya kusungunula kupirira mphamvu yamagetsi iyenera kuganiziridwa makamaka.
02. Kugwedezeka kwakukulu ndi zofunikira zaphokoso za ma motor frequency frequency
Magalimoto osinthika pafupipafupi amayenera kuganizira mozama za kulimba kwa zida zamagalimoto ndi zonse, ndikuyesera kukulitsa ma frequency awo achilengedwe kuti apewe kumveka ndi funde lililonse lamphamvu.
03. Njira zoziziritsa zosiyanasiyana za ma motor frequency frequency
Ma mota osinthasintha nthawi zambiri amagwiritsa ntchito kuziziritsa kwa mpweya wokakamiza, ndiye kuti, fan yayikulu yoziziritsa yamoto imayendetsedwa ndi mota yodziyimira payokha.
04. Njira zosiyanasiyana zotetezera ndizofunikira
Miyezo yonyamula kutchinjiriza iyenera kutsatiridwa pama motors osintha pafupipafupi okhala ndi mphamvu yopitilira 160KW. Ndizosavuta kupanga maginito asymmetry ndi shaft current. Zomwe zimapangidwira ndi zigawo zina zapamwamba kwambiri zikaphatikizidwa, shaft current idzawonjezeka kwambiri, zomwe zimapangitsa kuwonongeka, choncho njira zotetezera zimatengedwa nthawi zambiri. Kwa ma motor pafupipafupi amagetsi osinthasintha mphamvu, liwiro likapitilira 3000 / min, mafuta apadera osamva kutentha ayenera kugwiritsidwa ntchito kubwezera kutentha kwa mayendedwe.
05. Makina ozizirira osiyanasiyana
Kuzizira kwa ma frequency motor kuzirala kumagwiritsa ntchito magetsi odziyimira pawokha kuti atsimikizire kuzizira kosalekeza.

2.Chidziwitso choyambirira cha ma motors

Kusankhidwa kwa magalimoto
Zomwe zili zofunika pakusankha motere ndi:
Mtundu wa katundu woyendetsedwa, mphamvu yovotera, voliyumu yovoteledwa, liwiro lovotera, ndi zina.
Katundu wamtundu · DC mota · Asynchronous mota · Synchronous motor
Pamakina opanga mosalekeza okhala ndi katundu wokhazikika komanso osafunikira zapadera poyambira ndi kubweza, ma motors okhazikika a maginito osakanikirana kapena ma asynchronous motors agologolo ayenera kukondedwa, omwe amagwiritsidwa ntchito kwambiri pamakina, mapampu amadzi, mafani, ndi zina zambiri.
Pamakina opangira omwe amayamba pafupipafupi komanso mabuleki omwe amafunikira ma torque akulu ndi ma braking, monga ma cranes a mlatho, ma hoist a mgodi, ma compressor a mpweya, mphero zosasinthika, ndi zina zotere, maginito okhazikika a maginito kapena ma asynchronous motors ayenera kugwiritsidwa ntchito.
Nthawi zina popanda kuwongolera liwiro, komwe kuthamanga kosalekeza kumafunikira kapena mphamvu yamagetsi ikufunika kuwongolera, ma motors okhazikika a maginito amayenera kugwiritsidwa ntchito, monga mapampu amadzi apakatikati ndi akulu, ma compressor a mpweya, ma hoist, mphero, ndi zina zambiri.
Pamakina opanga omwe amafunikira kuwongolera liwiro lopitilira 1: 3 ndipo amafuna kuwongolera mosalekeza, kokhazikika komanso kosalala, ndikofunikira kugwiritsa ntchito maginito okhazikika a maginito kapena ma motors okondwa a DC kapena ma asynchronous motors omwe ali ndi liwiro losinthasintha, monga zida zazikulu zamakina olondola kwambiri, ma planer a gantry, mphero zogudubuza, hoist, etc.
Nthawi zambiri, mota imatha kutsimikiziridwa momveka bwino popereka mtundu wa katundu woyendetsedwa, mphamvu yovotera, voliyumu yovotera, komanso liwiro la mota.
Komabe, ngati zofunikira zonyamula zikuyenera kukwaniritsidwa bwino, magawo oyambira awa ndi osakwanira.
Magawo ena omwe akuyenera kuperekedwa ndi awa: pafupipafupi, makina ogwirira ntchito, zofunikira zochulukira, mulingo wachitetezo, mulingo wachitetezo, mphindi ya inertia, curve yopingana ndi torque, njira yoyika, kutentha kozungulira, kutalika, zofunikira zakunja, ndi zina zambiri. zochitika)

3.Chidziwitso choyambirira cha ma motors

Njira zosankha zamagalimoto
Pamene injini ikuyenda kapena ikulephera, njira zinayi zoyang'ana, kumvetsera, kununkhiza ndi kukhudza zingagwiritsidwe ntchito kuteteza ndi kuthetsa vutolo panthawi yake kuti zitsimikizire kuti galimotoyo ikuyenda bwino.
1. Yang'anani
Onani ngati pali zolakwika zilizonse panthawi yoyendetsa galimoto, zomwe zimawonekera makamaka pazochitika zotsatirazi.
1. Pamene kulowera kwa stator kuli kochepa, mukhoza kuona utsi ukutuluka mu injini.
2. Pamene injini ikulemedwa kwambiri kapena ikuyenda mu gawo lotayika, liwiro lidzacheperachepera ndipo padzakhala phokoso lalikulu la "buzzing".
3. Pamene galimoto ikuyenda bwino, koma mwadzidzidzi imayima, mudzawona zonyezimira zikutuluka mu kugwirizana kotayirira; fuseyo imawombedwa kapena gawo linalake.
4. Ngati galimotoyo ikugwedezeka mwamphamvu, zikhoza kukhala kuti chipangizo chopatsirana chimakakamira kapena galimotoyo sichinakhazikitsidwe bwino, zitsulo zamapazi zimakhala zotayirira, etc.
5. Ngati pali ma discoloration, zizindikiro zowotcha ndi zizindikiro za utsi pazigawo zolumikizana ndi zolumikizira mkati mwagalimoto, zikutanthauza kuti pangakhale kutenthedwa m'deralo, kukhudzana koyipa pa kugwirizana kwa kondakitala kapena mafunde akuwotcha, ndi zina zambiri.
2. Mvetserani
Pamene injini ikuyenda bwino, iyenera kutulutsa phokoso lofanana ndi "buzzing" lopepuka, lopanda phokoso ndi phokoso lapadera.
Ngati phokosolo ndi lalikulu kwambiri, kuphatikiza phokoso lamagetsi, phokoso lokhala ndi phokoso, phokoso la mpweya wabwino, phokoso lamakasitomala, ndi zina zotere, zitha kukhala zoyambira kapena zolakwika.
1. Pa phokoso lamagetsi, ngati injini imapanga phokoso lapamwamba, lotsika komanso lolemera, zifukwa zingakhale motere:
(1) Kusiyana kwa mpweya pakati pa stator ndi rotor sikufanana. Panthawiyi, phokosoli limakhala lokwera komanso lotsika, ndipo nthawi yomwe imakhalapo pakati pa phokoso lapamwamba ndi lotsika silinasinthe. Izi zimayamba chifukwa cha kuvala konyamula, zomwe zimapangitsa kuti stator ndi rotor zisamangidwe.
(2) Mphamvu ya magawo atatu ilibe malire. Izi zimayamba chifukwa cha magawo atatu okhotakhota molakwika, kufupikitsa kapena kusalumikizana bwino. Ngati phokoso liri lopanda phokoso kwambiri, zikutanthauza kuti galimotoyo yadzaza kwambiri kapena ikuyenda m'njira yosowa gawo.
(3) Chitsulo chasokonekera. Pamene injini ikugwira ntchito, kugwedezeka kumapangitsa kuti zomangira zachitsulo zisungunuke, zomwe zimapangitsa kuti chitsulo chachitsulo cha silicon chisungunuke ndikupanga phokoso.
2. Kuti mukhale ndi phokoso, muyenera kuyang'anitsitsa nthawi zambiri pakugwira ntchito kwa injini. Njira yowunikira ndi: ikani mbali imodzi ya screwdriver motsutsana ndi gawo loyikapo ndi mbali ina pafupi ndi khutu lanu, ndipo mutha kumva phokoso la kunyamula. Ngati kunyamula kumagwira ntchito bwino, phokosolo limakhala phokoso losalekeza komanso lomveka bwino, lopanda kusinthasintha kapena phokoso lachitsulo.
Ngati mawu otsatirawa amveka, ndizochitika zachilendo:
(1) Pamakhala phokoso la “mkunkhu” pamene kunyamula kukuyenda. Ichi ndi phokoso lachitsulo chogwedeza, chomwe nthawi zambiri chimayamba chifukwa cha kusowa kwa mafuta muzitsulo. Chovalacho chiyenera kuphwanyidwa ndikuwonjezera mafuta oyenera.
(2) Ngati phokoso la “kulira” likumveka, ndiye kuti pali phokoso limene limamveka pamene mpira ukuzungulira. Nthawi zambiri zimachitika chifukwa cha kuyanika kwamafuta kapena kusowa kwamafuta. Mafuta oyenera akhoza kuwonjezeredwa.
(3) Ngati phokoso la “kudindikiza” kapena “kugwetsa” likuchitika, ndilo liwu lopangidwa ndi kusuntha kosalongosoka kwa mpirawo. Izi zimayamba chifukwa cha kuwonongeka kwa mpira mu bere kapena kusagwiritsidwa ntchito kwa injini kwa nthawi yayitali, zomwe zimapangitsa kuti mafutawo aume.
3. Ngati njira yopatsirana ndi njira yoyendetsedwa imapanga phokoso losalekeza m'malo mwa phokoso losinthasintha, likhoza kuchitidwa molingana ndi zochitika zotsatirazi.
(1) Kumveka kwa "pop" kwanthawi ndi nthawi kumachitika chifukwa cha kulumikizana kwa lamba wosagwirizana.
(2) Phokoso la "dong dong" la nthawi ndi nthawi limayamba chifukwa cha kumasuka pakati pa kugwirizana kapena pulley ndi shaft, komanso kuvala kwa kiyi kapena fungulo.
(3) Phokoso losafanana la kugunda limayamba chifukwa chakuti masamba akugundana ndi chivundikiro cha fan.

3. Kununkhira
Zolephera zimathanso kuweruzidwa ndikupewedwa ndi kununkhiza kwa injini.
Tsegulani bokosilo ndikununkhiza kuti muwone ngati pali fungo lopsa. Ngati fungo lapadera la penti likupezeka, zikutanthauza kuti kutentha kwa mkati mwa galimoto ndikokwera kwambiri; ngati papezeka fungo lopsa ndi moto kapena fungo loyaka moto, zitha kukhala kuti ukonde wotsekera wosweka wathyoka kapena chotchingira chawotchedwa.
Ngati palibe fungo, m'pofunika kugwiritsa ntchito megohmmeter kuyeza kukana kutchinjiriza pakati pa mafunde ndi casing. Ngati ili yosakwana 0,5 megohms, iyenera kuuma. Ngati kukana kuli zero, kumatanthauza kuti kwawonongeka.
4. Kukhudza
Kukhudza kutentha kwa mbali zina za injini kungathenso kudziwa chomwe chimayambitsa vutolo.
Kuti muwonetsetse chitetezo, gwiritsani ntchito kumbuyo kwa dzanja lanu kuti mukhudze chotengera chamoto ndi mbali zozungulira.
Ngati kutentha sikuli kwabwinobwino, zifukwa zitha kukhala motere:
1. Kupanda mpweya wabwino. Monga kugwa kwa fan, kutsekeka kwa ma ducts, etc.
2. Zochulukira. Pakalipano ndi yayikulu kwambiri ndipo makhoma a stator amatenthedwa.
3. Kutembenuka kwa stator kumakhala kofupikitsa kapena katatu kagawo kakang'ono kameneka ndi kosagwirizana.
4. Kuyamba kapena kuboma pafupipafupi.
5. Ngati kutentha kozungulira chonyamuliracho ndi kokwera kwambiri, kungayambitse kuwonongeka kapena kusowa kwa mafuta.

Magalimoto okhala ndi malamulo a kutentha, zomwe zimayambitsa ndi chithandizo chazovuta

Malamulowa amati kutentha kwakukulu kwa ma bearings osapitirira 95 ℃, ndipo kutentha kwakukulu kwa mayendedwe otsetsereka sikuyenera kupitilira 80 ℃. Ndipo kutentha kukwera sikuyenera kupitirira 55 ℃ (kutentha kwa kutentha ndi kutentha kwapang'onopang'ono kuchotsera kutentha kozungulira panthawi yoyesedwa).

Zifukwa ndi chithandizo cha kukwera kwambiri kwa kutentha kwa thupi:

(1) Chifukwa: Shaft ndi yopindika ndipo mzere wapakati siwolondola. Chithandizo: Pezaninso malowa.
(2) Chifukwa: Zomangira maziko ndi zomasuka. Chithandizo: Limbani zomangira maziko.

(3) Choyambitsa: Mafuta onunkhirawa ndi osayera. Chithandizo: M'malo mwa mafuta.

(4) Chifukwa: Mafutawa akhala akugwiritsidwa ntchito kwa nthawi yayitali ndipo sanasinthidwe. Chithandizo: Tsukani ma berelo ndikusintha mafuta.
(5) Chifukwa: Mpira kapena wodzigudubuza pamayendedwe awonongeka. Kuchiza: Bwezerani chatsopanocho.

Malingaliro a kampani Anhui Mingteng Permanent-Magnetic Machinery & Electrical Equipment Co., Ltd.(https://www.mingtengmotor.com/) adakumana ndi zaka 17 zachitukuko chofulumira. Kampaniyo yapanga ndikupanga maginito opitilira 2,000 okhazikika maginito ochiritsira, ma frequency osinthika, umboni wa kuphulika, umboni wa kuphulika kwafupipafupi, kuwongolera molunjika, ndi mndandanda wamagalimoto ongophulika. Ma motors akhala akugwiritsidwa ntchito bwino pa mafani, mapampu amadzi, zotengera malamba, mphero za mpira, zosakaniza, zopopera, zowonongeka, mapampu amafuta, makina opota ndi katundu wina m'madera osiyanasiyana monga migodi, zitsulo, ndi magetsi, kukwaniritsa zotsatira zabwino zopulumutsa mphamvu. ndi kupeza kutamandidwa kwakukulu.

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