Bambanci tsakanin nau'ikan injina daban-daban

1. Bambance-bambance tsakanin motocin DC da AC

Tsarin tsarin motar DC

Tsarin tsarin motar AC

Motocin DC suna amfani da kai tsaye a matsayin tushen wutar lantarki, yayin da injinan AC ke amfani da alternating current a matsayin tushen wutar lantarki.

A tsari, ka'idar DC Motors yana da sauƙi mai sauƙi, amma tsarin yana da rikitarwa kuma ba shi da sauƙin kulawa. Ka'idar AC Motors yana da rikitarwa amma tsarin yana da sauƙi, kuma yana da sauƙin kulawa fiye da na'urorin DC.

Dangane da farashi, injinan DC masu ƙarfi iri ɗaya sun fi na AC. Ciki har da na'urar sarrafa sauri, farashin DC ya fi na AC. Tabbas, akwai kuma babban bambance-bambance a cikin tsari da kulawa.
Dangane da aiki kuwa, saboda saurin injin DC ɗin yana da ƙarfi kuma daidaitaccen abin sarrafa gudu ne, wanda ba za a iya samu ta hanyar injin AC ba, dole ne a yi amfani da injin DC maimakon injin AC ƙarƙashin tsauraran buƙatun saurin gudu.
Tsarin saurin injin injin AC yana da ɗan rikitarwa, amma ana amfani dashi sosai saboda masana'antar sinadarai suna amfani da wutar AC.

2. Bambance-bambance tsakanin injunan aiki tare da asynchronous Motors

Idan na'ura mai jujjuyawa tana jujjuya daidai da gudu ɗaya da na stator, ana kiran shi motar aiki tare. Idan ba iri ɗaya ba ne, ana kiran shi motar asynchronous.

3. Bambanci tsakanin talakawa da m mitar Motors

Da farko dai, ba za a iya amfani da motoci na yau da kullun azaman injin mitar mitoci masu canzawa ba. Motoci na yau da kullun an ƙera su ne bisa ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun wutar lantarki, kuma ba shi yiwuwa a daidaita daidai da buƙatun ƙa'idodin saurin sauya mitar, don haka ba za a iya amfani da su azaman injin mitar mitar ba.
Tasirin masu sauya mitar a kan injina ya fi dacewa akan inganci da hauhawar zafin injin.
Mai jujjuya mitar na iya haifar da nau'ikan nau'ikan nau'ikan wutar lantarki masu jituwa da na yanzu yayin aiki, ta yadda motar ke gudana ƙarƙashin wutar lantarki mara sinusoidal da na yanzu. Babban tsarin jituwa a cikinta zai haifar da asarar jan ƙarfe na motar stator, asarar jan ƙarfe na rotor, asarar ƙarfe da ƙarin hasara don haɓaka.
Mafi mahimmancin waɗannan shine asarar jan ƙarfe na rotor. Wadannan asarar za su sa motar ta haifar da ƙarin zafi, rage yawan aiki, rage ƙarfin fitarwa, kuma yawan zafin jiki na ƙananan motoci zai karu da 10% -20%.
Mitar mai jujjuyawar mitar ta tashi daga kilohertz da yawa zuwa fiye da kilohertz goma, wanda ke sa iskar stator na motar ya yi tsayin daka sosai da hauhawar hauhawar wutar lantarki, wanda yayi daidai da yin amfani da wutar lantarki mai tsauri sosai ga injin, yana yin tsaka-tsakin tsaka-tsaki. rufin motar yana jure wa gwaji mai tsanani.
Lokacin da injina na yau da kullun ke aiki ta hanyar masu canza mitar, rawar jiki da hayaniyar da ke haifar da electromagnetic, injina, iska da sauran abubuwa zasu zama masu rikitarwa.
Abubuwan jituwa da ke ƙunshe a cikin madaidaicin samar da wutar lantarki suna tsoma baki tare da daidaitattun daidaiton sararin samaniya na ɓangaren injin lantarki, suna samar da ƙarfin kuzari iri-iri na lantarki, don haka ƙara ƙara.
Saboda faffadan mitar aiki na injin da kuma babban kewayon bambancin saurin gudu, mitoci na raƙuman ƙarfin lantarki daban-daban suna da wahala a guje wa mitocin girgizar ƙasa na sassa daban-daban na injin ɗin.
Lokacin da mitar wutar lantarki ta yi ƙasa, asarar da aka samu ta hanyar haɗin kai mai girma a cikin wutar lantarki yana da girma; Abu na biyu kuma, idan aka rage saurin motar mai canzawa, yanayin sanyin iska yana raguwa daidai gwargwado daidai da cube na gudun, wanda hakan ya haifar da zafi na injin din ba ya gushewa, yanayin zafi yana karuwa sosai, kuma da wuya a cimma. m karfin juyi fitarwa.

4. Bambancin tsarin tsakanin injina na yau da kullun da na'urori masu canzawa

01. Higher rufi matakin bukatun
Gabaɗaya, matakin rufewa na injin mitar masu canzawa shine F ko mafi girma. Ya kamata a karfafa shingen ƙasa da ƙarfin jujjuyawar waya, kuma ya kamata a yi la'akari da ikon iya jure wa wutar lantarki ta musamman.
02. Higher vibration da amo bukatun ga m mitar Motors
Motocin mitar masu canzawa yakamata suyi la'akari da tsayin daka na abubuwan motsa jiki da kuma gaba ɗaya, kuma suyi ƙoƙarin haɓaka mitar yanayin su don gujewa rawa da kowane motsin ƙarfi.
03. Hanyoyi daban-daban na sanyaya don motoci masu canzawa
Motoci masu canzawa gabaɗaya suna amfani da sanyaya iska mai ƙarfi, wato, babban injin sanyaya injin yana motsa shi ta injin mai zaman kansa.
04. Ana buƙatar matakan kariya daban-daban
Yakamata a ɗauki matakan rufewa don injunan mitar mitoci masu ƙarfin sama da 160KW. Abu ne mai sauƙi don samar da asymmetry na da'ira da kuma shaft current. Lokacin da aka haɗa na yanzu da wasu manyan abubuwan haɗin gwiwar ke haifarwa, ƙarfin shaft ɗin zai ƙaru sosai, yana haifar da lalacewa, don haka ana ɗaukar matakan rufewa gabaɗaya. Don injunan mitar wutar lantarki akai-akai, lokacin da saurin ya wuce 3000/min, yakamata a yi amfani da man shafawa na musamman mai jure zafin jiki don rama yawan zafin jiki na ɗamarar.
05. Daban-daban tsarin sanyaya
Matsakaicin mitar mai sanyaya motar motsa jiki yana amfani da wutar lantarki mai zaman kanta don tabbatar da ci gaba da ƙarfin sanyaya.

2.Basic ilmin motoci

Zabin mota
Abubuwan da ake buƙata don zaɓin mota sune:
Nau'in nauyin da ake tuƙawa, ƙarfin ƙididdigewa, ƙimar ƙarfin lantarki, ƙimar ƙimar gudu, da sauran yanayi.
Nau'in Load · Motar DC · Motar Asynchronous · Motar daidaitacce
Don ci gaba da samar da injunan samarwa tare da tsayin daka kuma babu buƙatu na musamman don farawa da birki, injina na dindindin na magnetic synchronous Motors ko talakawa squirrel cage asynchronous Motors yakamata a fi son su, waɗanda ake amfani dasu sosai a cikin injina, famfo ruwa, magoya baya, da sauransu.
Don injunan samarwa tare da farawa da birki akai-akai da kuma buƙatar manyan juzu'i na farawa da birki, irin su gada cranes, hoists mine, compressors, injin mirgina da ba za a iya jurewa ba, da dai sauransu, ya kamata a yi amfani da injunan maganadisu na dindindin ko injunan asynchronous.
Don lokatai ba tare da buƙatun ƙa'idodin saurin gudu ba, inda ake buƙatar ci gaba da saurin gudu ko kuma ana buƙatar haɓaka ƙarfin wutar lantarki, yakamata a yi amfani da injunan haɗaɗɗen maganadisu na dindindin, kamar matsakaita da manyan fafutuka na ruwa, damfarar iska, hoists, niƙa, da sauransu.
Don injunan samarwa waɗanda ke buƙatar kewayon ƙa'idar saurin sama da 1: 3 kuma yana buƙatar ci gaba, ƙayyadaddun ƙayyadaddun ƙa'idodin saurin sauri, yana da kyau a yi amfani da injunan maganadisu na dindindin ko injina daban-daban ko injin DC masu ban sha'awa ko squirrel cage asynchronous Motors tare da ƙa'idodin saurin mitar, kamar manyan kayan aikin injuna, na'urorin gantry, birdi, injina, da dai sauransu.
Gabaɗaya magana, ana iya ƙididdige injin ta hanyar samar da nau'in kaya mai tuƙi, ƙimar ƙarfin wuta, ƙimar ƙarfin lantarki, da ƙimar ƙimar injin.
Koyaya, idan buƙatun lodi za a cika su da kyau, waɗannan sigogi na asali ba su isa ba.
Sauran sigogin da ake buƙatar samarwa sun haɗa da: mita, tsarin aiki, buƙatun nauyi, matakin rufewa, matakin kariya, lokacin inertia, juriya juriya mai ƙarfi, hanyar shigarwa, zafin yanayi, tsayi, buƙatun waje, da sauransu (an bayar bisa ƙayyadaddun bayanai). yanayi)

3.Basic ilmin motoci

Matakai don zaɓin mota
Lokacin da motar ke gudana ko ta kasa, za a iya amfani da hanyoyi guda hudu na kallo, saurare, wari da tabawa don hanawa da kuma kawar da kuskuren a cikin lokaci don tabbatar da amincin aikin motar.
1. Duba
Yi la'akari da ko akwai rashin daidaituwa yayin aikin motar, wanda aka fi bayyana a cikin yanayi masu zuwa.
1. Lokacin da iskar stator ke ɗan gajeren kewayawa, zaku iya ganin hayaki yana fitowa daga cikin motar.
2. Lokacin da motar ta yi nauyi sosai ko tana gudana a cikin asarar lokaci, saurin zai ragu kuma za a sami sautin "buzzing" mai nauyi.
3. Lokacin da motar ke gudana akai-akai, amma ba zato ba tsammani, za ku ga tartsatsi suna fitowa daga hanyar da ba ta dace ba; an busa fis ko wani sashi ya makale.
4. Idan motar ta yi rawar jiki da ƙarfi, yana iya zama na'urar watsawa ta makale ko kuma motar ba ta da kyau, ƙullun ƙafafu suna kwance, da dai sauransu.
5. Idan akwai discoloration, ƙona alamomi da alamun hayaki a kan wuraren tuntuɓar da haɗin kai a cikin motar, yana nufin cewa za'a iya samun zafi na gida, rashin sadarwa mara kyau a haɗin madubi ko iskar da aka ƙone, da dai sauransu.
2. Saurara
Lokacin da motar ke gudana akai-akai, ya kamata ya fitar da uniform kuma yana fitar da sautin "ƙara" mai sauƙi, ba tare da hayaniya da sautuna na musamman ba.
Idan hayaniyar ta yi ƙarfi sosai, gami da hayaniyar lantarki, ƙarar amo, hayaniyar samun iska, hayaniyar juzu'i, da sauransu, yana iya zama mafari ko kuskure.
1. Domin surutun lantarki, idan motar ta yi sauti mai girma, ƙasa da nauyi, dalilan na iya zama kamar haka:
(1) Ratar iska tsakanin stator da rotor ba daidai ba ne. A wannan lokacin, sautin yana da girma da ƙasa, kuma tazara tsakanin manya da ƙananan sautuna ya kasance baya canzawa. Wannan yana faruwa ne ta hanyar lalacewa, wanda ke sa stator da rotor ba su da hankali.
(2) Yanayin halin yanzu mai hawa uku bai daidaita ba. Wannan yana faruwa ne ta hanyar iskar iska mai matakai uku da aka yi ƙasa ba daidai ba, gajeriyar kewayawa ko rashin mu'amala. Idan sautin ya yi rauni sosai, yana nufin cewa motar tana da nauyi da yawa ko kuma tana aiki ta hanyar da ba ta da lokaci.
(3) Ƙarfe core sako-sako ne. A lokacin aikin motar, rawar jiki yana haifar da ƙwanƙwasa ƙwanƙwasa baƙin ƙarfe don sassauta, yana haifar da takarda na siliki na baƙin ƙarfe don sassauta da yin hayaniya.
2. Don ɗaukar amo, ya kamata ku saka idanu akai-akai yayin aikin motar. Hanyar saka idanu ita ce: sanya ƙarshen screwdriver ɗaya a kan sashin shigarwa mai ɗaukar hoto sannan ɗayan ƙarshen kusa da kunnen ku, kuma kuna iya jin sautin motsi yana gudana. Idan mai ɗaukar hoto yana aiki akai-akai, sautin ci gaba ne kuma sautin “tsatsa” mai kyau, ba tare da wani canji ko sautin gogayya na ƙarfe ba.
Idan waɗannan sautunan sun faru, wani abu ne mara kyau:
(1) Akwai sautin "ƙugiya" lokacin da ɗaukar hoto ke gudana. Wannan sautin juzu'i ne na ƙarfe, wanda galibi ke haifar da ƙarancin mai a cikin ɗaukar hoto. Ya kamata a tarwatsa abin da aka yi amfani da shi kuma a ƙara adadin mai mai dacewa.
(2) Idan sautin "chirping" ya faru, wannan shine sautin da aka yi lokacin da ƙwallon yana juyawa. Yawanci yana faruwa ne sakamakon bushewar maiko ko rashin mai. Ana iya ƙara adadin mai mai dacewa da ya dace.
(3) Idan sautin "danna" ko "ƙuƙuwa" ya faru, sautin ne da ke haifar da motsin ƙwallon da ba daidai ba a cikin ɗaki. Wannan yana faruwa ne ta hanyar lalacewar ƙwallon ƙwallon a cikin ɗaukar hoto ko rashin amfani da injin na dogon lokaci, wanda ke haifar da bushewar maiko.
3. Idan na'urar watsawa da na'ura mai tuƙi suna yin sauti mai ci gaba maimakon sauti mai jujjuyawa, ana iya sarrafa shi gwargwadon yanayi masu zuwa.
(1) Sautin “pop” na lokaci-lokaci yana haifar da haɗin bel mara daidaituwa.
(2) Sautin "dong dong" na lokaci-lokaci yana faruwa ne ta hanyar sako-sako tsakanin mahaɗa ko ja da igiya, da kuma sawar maɓalli ko maɓalli.
(3) Sautin karo mara daidaituwa yana faruwa ne sakamakon cin karo da ruwan fanfo.

3. Kamshi
Hakanan ana iya tantance gazawar ta hanyar jin warin motar.
Bude junction box din yayi kamshi don ganin ko akwai warin konawa. Idan an sami ƙanshin fenti na musamman, yana nufin cewa zafin jiki na cikin motar ya yi yawa; idan an sami ƙamshin ƙonawa mai ƙarfi ko ƙamshi mai ƙonewa, mai yiyuwa ne gidan yanar gizon kula da insulation ya karye ko kuma iskar ya ƙone.
Idan babu wari, wajibi ne a yi amfani da megohmmeter don auna juriya na kariya tsakanin iska da casing. Idan kasa da megohms 0.5, dole ne a bushe. Idan juriya ta zama sifili, yana nufin ya lalace.
4. Tabawa
Taɓa yanayin zafin wasu sassan motar kuma na iya tantance musabbabin laifin.
Don tabbatar da aminci, yi amfani da bayan hannunka don taɓa rumbun motar da sassan da ke kewaye.
Idan yanayin zafi bai saba ba, dalilai na iya zama kamar haka:
1. Rashin samun iska. Kamar fadowar fanka, toshewar bututun iska, da sauransu.
2. Yawan lodi. A halin yanzu yana da girma da yawa kuma iskar stator ya yi zafi sosai.
3. Juyin jujjuyawar stator ba su da ɗan gajeren kewayawa ko kuma halin yanzu mai hawa uku bai daidaita ba.
4. Yawan farawa ko birki.
5. Idan yanayin zafi a kusa da abin da aka yi da shi ya yi yawa, yana iya zama lalacewa ta hanyar lalacewa ko rashin mai.

Dokokin zafin jiki masu ɗaukar mota, haddasawa da magance rashin daidaituwa

Dokokin sun ƙulla cewa matsakaicin zafin jiki na mirgina bearings ba zai wuce 95 ℃, kuma matsakaicin zafin jiki na zamiya bearings ba zai wuce 80 ℃. Kuma hawan zafin jiki kada ya wuce 55 ℃ (hawan zafin jiki shine zazzabi mai ɗaukar nauyi da rage yanayin yanayi yayin gwajin).

Dalilai da magunguna na hauhawar yawan zafin jiki:

(1) Dalili: An lanƙwasa sandar kuma layin tsakiya ba daidai ba ne. Jiyya: Nemo cibiyar kuma.
(2) Dalili: Gine-ginen screws suna kwance. Jiyya: Tsare tushen sukurori.

(3) Dalili: Mai mai ba shi da tsabta. Jiyya: Sauya mai mai.

(4) Dalili: An daɗe da amfani da man shafawa kuma ba a canza shi ba. Jiyya: tsaftace bearings kuma maye gurbin mai mai.
(5) Dalili: Ƙwallon ko abin nadi da ke cikin ɗaki ya lalace. Jiyya: Maye gurbin abin da aka yi da wani sabo.

Anhui Mingteng Permanent-Magnetic Machinery & Electric Equipment Co., Ltd.(https://www.mingtengmotor.com/) ya sami shekaru 17 na ci gaba cikin sauri. Kamfanin ya haɓaka kuma ya samar da injunan maganadisu na dindindin sama da 2,000 a cikin na al'ada, mitar mai canzawa, tabbacin fashewa, tabbataccen fashewar mitar, tuƙi kai tsaye, da jerin abubuwan tuƙi kai tsaye. An samu nasarar sarrafa injinan akan fanfo, fanfunan ruwa, bel, injin ball, mixers, crushers, scrapers, fanfunan mai, injina da sauran lodi a fagage daban-daban kamar hakar ma'adinai, karfe, da wutar lantarki, wanda hakan ya haifar da kyakkyawan sakamako na ceton makamashi. da kuma samun yabo mai yawa.

Haƙƙin mallaka: Wannan labarin sake bugawa ne na hanyar haɗin yanar gizo na asali:

https://mp.weixin.qq.com/s/hLDTgGlnZDcGe2Jm1oX0Hg

Wannan labarin baya wakiltar ra'ayoyin kamfaninmu. Idan kuna da ra'ayi daban-daban ko ra'ayi, don Allah a gyara mana!