Mphamvu zamagalimoto ziyenera kusankhidwa molingana ndi mphamvu zomwe zimafunidwa ndi makina opanga kuti injiniyo iziyenda pansi pa katundu wovoteledwa momwe zingathere. Mfundo ziwiri zotsatirazi ziyenera kutsatiridwa posankha:
① Ngati mphamvu yamagalimoto ndi yaying'ono kwambiri, chodabwitsa cha "kavalo waung'ono wokoka ngolo" chidzawoneka, zomwe zimapangitsa kuti injiniyo ichuluke kwa nthawi yayitali, zomwe zimapangitsa kuwonongeka kwake chifukwa cha kutentha, ndipo ngakhale galimotoyo imawotchedwa.
② Ngati mphamvu yamagalimoto ndi yayikulu kwambiri, chodabwitsa cha "kavalo wamkulu kukoka galimoto yaying'ono" chidzawonekera. Mphamvu zamakina zotulutsa sizingagwiritsidwe ntchito mokwanira, ndipo mphamvu yamagetsi ndi magwiridwe antchito sizokwera, zomwe sizongosangalatsa kwa ogwiritsa ntchito ndi gridi yamagetsi. Ndipo ndi kutaya mphamvu.
Kuti musankhe bwino mphamvu ya injini, mawerengedwe awa kapena kufananitsa kuyenera kuchitika:
P = f * V / 1000 (P = mphamvu yowerengera kW, f = yofunikira kukoka mphamvu N, liwiro lofananira la makina ogwira ntchito M / s)
Pakuchulukirachulukira kopitilira muyeso, mphamvu yamagalimoto yofunikira imatha kuwerengedwa motsatira njira iyi:
P1(kw):P=P/n1n2
Kumene N1 ndikuchita bwino kwa makina opanga; N2 ndiye mphamvu ya injini, ndiye kuti, kufalitsa bwino.
Mphamvu ya P1 yowerengedwa ndi ndondomeko yomwe ili pamwambayi siili yofanana ndi mphamvu ya mankhwala. Choncho, mphamvu yovotera ya galimoto yosankhidwa iyenera kukhala yofanana kapena yokulirapo pang'ono kuposa mphamvu yowerengedwa.
Kuphatikiza apo, njira yomwe imagwiritsidwa ntchito kwambiri ndiyo kusankha mphamvu. Zomwe zimatchedwa fanizo. Zimayerekezedwa ndi mphamvu ya injini yomwe imagwiritsidwa ntchito pamakina opangira ofanana.
Njira yeniyeni ndi iyi: dziwani kuchuluka kwa injini yamagetsi yomwe imagwiritsidwa ntchito pamakina opangira ofanana a unit iyi kapena mayunitsi ena oyandikana nawo, ndiyeno sankhani mota yomwe ili ndi mphamvu yofananira yoyeserera. Cholinga cha kutumiza ndikuwonetsetsa ngati galimoto yosankhidwayo ikugwirizana ndi makina opanga.
Njira yotsimikizira ndi: pangani galimoto kuyendetsa makina opanga kuti ayendetse, kuyeza momwe injini ikugwirira ntchito ndi ammeter yochepetsera, ndikufanizira zomwe zayezedwa ndi zomwe zidavotera zomwe zalembedwa pa nameplate yamoto. Ngati ntchito yeniyeni yamakono ya galimotoyo siinali yosiyana ndi yomwe imayikidwa pa chizindikiro, mphamvu ya galimoto yosankhidwa ndi yoyenera. Ngati mphamvu yeniyeni ya galimotoyo ili pafupi ndi 70% yotsika kuposa yomwe ikuwonetsedwa pamtengo wamtengo wapatali, zimasonyeza kuti mphamvu ya galimotoyo ndi yaikulu kwambiri, ndipo injini yokhala ndi mphamvu yochepa iyenera kusinthidwa. Ngati mphamvu yoyezera ya injiniyo ndi yoposa 40% kuposa momwe ikuwonetsedwera pamtengo wowerengera, zikuwonetsa kuti mphamvu ya injiniyo ndi yaying'ono kwambiri, ndipo injini yokhala ndi mphamvu yayikulu iyenera kusinthidwa.
M'malo mwake, torque (ma torque) iyenera kuganiziridwa. Pali njira zowerengera mphamvu zamagalimoto ndi torque.
Ndiye kuti, t = 9550p / n
Kumene:
P-mphamvu, kW;
N-ovotera liwiro la mota, R / min;
T-torque, nm.
Ma torque amoto ayenera kukhala akulu kuposa ma torque omwe amafunikira makina ogwirira ntchito, omwe nthawi zambiri amafunikira chitetezo.
Nthawi yotumiza: Oct-29-2020