He aha te mahi a te pūoko o te porowhita crankshaft o te waka?
Ko te pūoko o te toki porowhita (e mōhiotia ana ko te pūoko tere o te miihini) te pūoko matua o te pūnaha whakahaere hiko o te miihini. Ko te nuinga o te wā e whakamahia ana hei kite i te tūranga o te toki porowhita, te tohu pokapū mate o runga o te piston, me te tere o te miihini, ā, ka tukuna ngā tohu ki te ECU hei whakahaere i te wā mura me te wā werohanga wahie. Ko te tikanga ka tāutahia tēnei pūoko ki te pito o mua o te toki porowhita, te pito o mua o te toki kame, te wira rere, te kaituku rānei. Me mahi tahi me te pūoko tūranga o te toki porowhita.
E ai ki tōna mātāpono mahi, ka taea te whakarōpū kia toru ngā momo: te momo pāoro aukume, te momo Hall, me te momo photoelectric: Ka whakaputa te momo pāoro aukume i tētahi tohu ngaru sine mā te whakaoho i tētahi panonitanga o te papa aukume mā roto i tētahi kōpae tohu. Ka whakaputa te momo Hall i tētahi tohu ngaru tapawhā mā te whakamahi i tētahi mata whakaoho. Ka whakaputa te momo photoelectric i tētahi ngaohiko pāoro mā te whakamahi i tētahi tuku pūaha rama. Me whai pūtake hiko 5V o waho te momo Hall, ā, ka taea e te momo photoelectric te heke te tika o te tohu nā te poke o te hinu. Ko ngā hapa noa ko te pokanoa tohu i puta mai i te tawhito o ngā waea, me te uaua ki te tīmata nā te paru o te pūoko. Ka taea e ngā āhuatanga rerekē te whakaoho i te rama hapa o te miihini, ka kore e ranea te mana, te kore rānei e taea te tīmata. E whakaatu ana te ara hangarau hou i tētahi ia whanaketanga mai i ngā tohu anaro ki te kimi matihiko.
Ko te mātāpono kimi o te pūoko tūranga porowhita momo pāoro aukume
Pūoko tūranga porowhita momo pāoro aukume a te Kamupene Nissan
Kei muri i te pūrakau te pūoko tūnga o tēnei pūoko. Kei te pito muri o te pūoko he kōpae porowhita angiangi me ngā niho angiangi (e whakamahia ana hei whakaputa tohu, e kiia nei ko te kōpae tohu), e tāuta tahitia ana me te pūoko pūoko i runga i te pūoko, ā, ka huri tahi me te pūoko. Kei te taha o waho o te kōpae tohu, he niho ia 4° i te porowhita. E 90 katoa ngā niho, ā, e 3 ngā kokiri e whakaritea ana i ia 120°, e 3 katoa. Ko te pouaka pūoko e tāutahia ana ki te taha o te kōpae tohu he kaihanga tohu e whakaputa ana i te tohu hiko. E 3 ngā pane aukume e takai ana i te aukume tuturu i runga i te koiri whakapūmau, kei reira te pane aukume 2 e whakaputa ana i te tohu 120°, ā, ko ngā pane aukume 3 me 4 e whakaputa tahi ana i te tohu koki pūoko 1°. Kei te anga te pane aukume ② ki te putanga 120° o te kōpae tohu, kei te anga te pane aukume ① me ③ ki te mowhiti taputapu o te kōpae tohu, me te rerekētanga ā-wāhanga o te koki tāutanga o te toki porowhita. He ara iahiko whakanui tohu me te hanga kei te kaihanga tohu, me te hononga kōhao-whā o waho, ko te kōhao "1" te raina putanga tohu 120°, ko te kōhao "2" te raina hiko mō te ara iahiko whakanui tohu me te hanga, ko te kōhao "3" te raina putanga tohu 1°, ā, ko te kōhao "4" te raina whenua. Mā tēnei hononga, ka tukuna te tohu i hangaia e te pūoko tūranga toki porowhita ki te ECU.
Ina huri te mīhini, ka puta he panoni i roto i te papa aukume e haere ana i roto i te koiri whakapūmau mā roto i ngā niho me ngā pūwero o te kōpae tohu, ā, ka puta he kaha hiko hurihuri i roto i te koiri whakapūmau. Whai muri i te tātari me te hanga, ka huri hei tohu pā. Whai muri i te hurihanga kotahi o te mīhini, ka whakaputahia e te pane aukume ② ngā tohu pā 3 120°, ā, ka whakaputahia e ngā pane aukume ① me ③ ia tohu pā 90 (whakawhitiwhiti). Nā te mea kua tāutahia ngā pane aukume ① me ③ ki te koki porowhita 3°, ā, ka whakaputahia e ia tohu pā ia 4°, ko te rerekētanga ā-wāhanga i waenga i ngā tohu pā i hangaia e ngā pane aukume ① me ③ he 90° tonu. Ka tukuna ēnei tohu pā e rua ki te ara iahiko whakanui me te hanga tohu hei hanga, kātahi ka whakaputahia he tohu koki porowhita 1°.
Ko te pane aukume ② e whakaputa ana i te tohu 120° kua tāutahia ki te 70° i mua i te pokapū mate o runga, nō reira ka taea hoki te kī ko tōna tohu ko te tohu 70° i mua i te pokapū mate o runga, arā, i te wā e mahi ana te mīhini, ka whakaputa te pane aukume ② i tētahi tohu pātītī i te pokapū mate o runga o ia rango.
Pūoko tūranga porowhita momo pāoro aukume a te Kamupene Toyota
Ka tāutahia e te pūnaha TCCS a te Kamupene Toyota te pūoko tūranga momo pāoro aukume ki roto i te tohatoha. Ka wehea te pūoko ki ngā wāhanga o runga me raro, ka whakaputahia e te wāhanga o runga te tohu G, ā, ka whakaputahia e te wāhanga o raro te tohu Ne, e rua mā te whakamahi i te rotor me ngā niho e hurihuri ana hei whakaputa i te huringa aukume o te koiri whakapūnga tohu, ā, ka puta he kaha hiko whakapūnga tauutuutu i roto i te koiri whakapūnga, ka whakanuia ake, ka tukuna ki te ECU.
Ko te tohu Ne te tohu mō te kimi i te koki o te toki porowhita me te tere o te miihini, he rite ki te tohu 1° o te pūoko tūranga toki porowhita momo pāoro aukume a te Kamupene Nissan. Ka whakaputaina tēnei tohu e te rotor (roto timing N0.2) e mau ana ki te wāhanga o raro me ngā niho 24 e ōrite ana te mokowā me te koiri pūoko e tata ana.
Ina huri te rotor, ka huri te āputa hau i waenganui i ngā niho me te wāhanga flange (upoko aukume) o te koiri pūoko, ka puta he huringa i roto i te papa aukume e haere ana i roto i te koiri pūoko, ka puta he kaha hiko i puta. Ina whakatata mai ngā niho, ā, ina neke atu i te upoko aukume, ka puta he huringa i roto i te pikinga me te hekenga o te rerenga aukume, kia puta ai he tohu ngaohiko AC katoa i roto i te koiri pūoko i te wā e haere ana i roto i te upoko aukume. E 24 ngā niho o te rotor wā N0.2, nō reira, ina huri te rotor i te porowhita katoa kotahi (arā, ka huri te toki porowhita 720°), ka puta he tohu ngaohiko AC e 24 i te koiri pūoko. Ko te kotahi pā o te tohu Ne i roto i te huringa he rite ki te 30° o te hurihanga o te toki porowhita (720° ÷ 24 = 30°). Ka tutuki te kitenga koki tika ake mā te wehewehe i te wā hurihanga 30° e te ECU kia 30 ngā wāhanga ōrite, kia puta ai he tohu hurihanga o te toki porowhita 1°. Waihoki, ka inehia te tere o te miihini e te ECU i runga i te wā i waenganui i ngā pāorooro e rua o te tohu Ne (te hurihanga o te toki porowhita 60°). Ka whakamahia te tohu G hei tautuhi i ngā rango me te kite i te tūranga pokapū mate o runga o te piston, he rite ki te tohu 120° o te pūoko tūranga toki porowhita pāorooro aukume a Nissan. Ka whakaputaina te tohu G e te rotor flange (rotor wā Nama 1) i runga ake i te kaihanga Ne me ōna koiri pūoko e rua (koiri pūoko G1 me te koiri pūoko G2). Ko te kaupapa o te whakaputa i te tohu he rite ki te kaupapa o te tohu Ne. Ka whakamahia hoki te tohu G hei tohu tohutoro mō te tatau i te koki o te toki porowhita.
Ka kitea e ngā tohu G1 me G2 te pokapū mate o runga o te rango tuaono me te rango tuatahi. Nā te tūranga o te kaihanga tohu G1 me G2, ina whakaputaina ngā tohu G1 me G2, kāore te piston i te pokapū mate o runga (BTDC), engari i te tūranga 10° i mua i te pokapū mate o runga.
Te kimi i te pūoko tūranga porowhita crankshaft aukume
Hei tauira, whakamahia te pūoko tūranga o te porowhita crankshaft aukume e whakamahia ana i roto i te pūnaha whakahaere hiko o te miihini 2JZ-GE o te waka Crown 3.0 hei whakaatu i tōna tikanga kimi.
Te tirotiro ātete o te pūoko tūnga o te porowhita crankshaft
Whakawetohia te pana mura, tangohia te hononga o te pūoko tūnga o te toki crankshaft, ka ine i ngā uara ātete i waenga i ngā pito o te pūoko tūnga o te toki crankshaft mā te tautuhinga ātete o te mita maha (Ripanga 1). Mena kāore ngā uara ātete i roto i te awhe kua tohua, me whakakapi te pūoko tūnga o te toki crankshaft.
Ki te hiahia koe ki te mōhio atu, pānuihia tonutia ngā tuhinga kē atu i runga i tēnei pae!
Tena waea mai ki a mātou mēnā e hiahia ana koe ki ēnei hua.
Zhuo Meng Shanghai Auto Co., Ltd. e whakapau kaha ana ki te hoko i a MG&MAXUSnau mai haere mai ngā wāhanga waka ki te hoko.
