DC motor: te pūrere, he tono mahi

Mahi whakaaro i roto i tenei tuhinga, te kōwae ti'aturi i runga i te āhuatanga o te whakaurutanga hiko. Ko te taketake tenei parau tumu o mahi o te pūkaha DC. Kei te mohiotia te pai te reira e nāianei-e mau kaiwhakahaere whakawhānui runga whakanohoia i roto i te rohe papa autō, kua he kaha pānga, e ai kia whakaritea i roto i runga i te tikanga maui-ringa: F ahau = B * L, te wahi -electric ahau nāianei, B - arataki mara; L - te roa tātai. Whiti nga raina o tōpana autō, riro te kaiwhakahaere he Ākinga Pūngao, i roto i te pā ana ki te rere o nāianei whakahaua nei ki reira, a ka kua karangatia e te whakamuri counter ranei. Ko te pūkaha tahuri te mana DC ki te puka pūkaha o pūngao, engari ano hoki wāhanga noho ai i runga i whakawera.

I taea te kite i te mata o te pūrere whakaminenga mīhini e whai ake: ko ngā ohie te DC nekeneke hanganga, e māngai reira e te pūpoapoa, me te armature, e Kei te noho taratahi e te āputa rangi.

hanga pūpoapoa te papa autō tū, o te mīhini me, i roto i tahuri, ngā o te anga, te pou (matua, me te atu). Eke i runga i nga amo anga, me te tïpako ano he wāhi i roto i te tāutanga o te ara iahiko autō. Ko te mara awhiowhio te amo matua Kei te hanga i te papa autō, me anō - pōkai ki te whakapai ake i te hononga.

Motor DC rawa ki te punga i ngā rau motuhake, waea, me te pōkai awa (whakanoho iho ki runga ki te rango take o paraharaha parahi). kawea tango Material i roto i te whakamahi i te paraihe o nāianei. E whakaritea ana ratou, ka tū i roto i te tetahi ti'araa, e whakarato ana te kaha e hiahiatia ana o te pēhanga ki runga ki te mata tango.

I roto i te mahi o te DC paraihe pūkaha nuku mo te mata o te komuhumuhu awa i roto i te ara taua e e tonu neke ratou i paraharaha tetahi ki tetahi. Na whakawhiti wāhanga whakarara o te pōkai me te armature nāianei e te huri. ka karanga Tukanga, me te ari e pā ana ki taua mea, kua whakawhitinga. EMF ai nāianei atu, e kua he tohatoha pāhiwihiwi o te mana kiato ki runga ki te mata o te brushes. Ko te take matua mō te sparking te kaikohi (i roto i te kaha o tenei tītohunga kua tata whakawhitinga me te kounga māka tāutuhia ona mana) tenei.

pūkaha DC ahei o te excitation manawanui - te hanga i roto i reira i te papa autō e hiahiatia ana i roto i te pūrere. E wehea ratou ki e wha ngā rōpū (peia tikanga):

• Independent te powered i te pūtake DC waho nei awhiowhio te.
• Whakarara - awhiowhio i roto i whakarara ki te homai i te pōkai armature.
• Ōrite - hono i roto i te raupapa.
• Konatunatua (ki coils excitation rangatū me whakarara).

I te ngaohiko tīmatanga tuatahi me te armature whakaritea i roto i te mea kore. he iti ātete, kia taea te nāianei tīmata kia 10-20 nga wa ki runga ake i te tauanga. Ki te whakarite i te maheni tīmatanga-ake tono te ārai stepwise e pōtitia e te nāianei nekeneke timata nei ātete taea uara.