Amandla emoto kufuneka akhethwe ngokwamandla afunwa ngumatshini wokuvelisa ukwenza imoto ibaleke phantsi komthwalo olinganisiweyo kangangoko kunokwenzeka. Ezi ngongoma zimbini zilandelayo kufuneka ziqwalaselwe xa ukhetha:
① Ukuba amandla emoto mancinci kakhulu, into ethi "ihashe elincinci elitsala inqwelo" iya kuvela, ibangele ukugcwala kwexesha elide kwemoto, ibangele ukonakala kwayo ngenxa yokufudumeza, kwaye nemoto iyatshiswa.
② Ukuba amandla emoto makhulu kakhulu, into ethi "ihashe elikhulu elitsala imoto encinci" iya kuvela. Amandla omatshini ophumayo akakwazi ukusetyenziswa ngokupheleleyo, kwaye amandla ombane kunye nokusebenza kakuhle akuxhomekanga, okungekhona kuphela okungathandekiyo kubasebenzisi kunye negridi yamandla. Kwaye yinkcitho yamandla.
Ukukhetha amandla enjini ngokuchanekileyo, ubalo okanye uthelekiso olulandelayo kufuneka lwenziwe:
P = f * V / 1000 (P = amandla abaliweyo kW, f = amandla okutsala afunekayo N, isantya somgca womatshini osebenzayo M / s)
Kumthwalo oqhubekayo wokusebenza kwemowudi, amandla emoto afunekayo angabalwa ngokwefomula ilandelayo:
P1(kw):P=P/n1n2
Apho i-N1 kukusebenza kakuhle koomatshini bokuvelisa; I-N2 kukusebenza kakuhle kwemoto, oko kukuthi, ukuhanjiswa kakuhle.
Amandla e-P1 abalwe ngale fomyula ingentla ayidingeki ukuba ifane namandla emveliso. Ngoko ke, amandla alinganisiweyo emoto ekhethiweyo kufuneka alingane okanye akhululwe kancinci kunamandla abalwayo.
Ukongeza, eyona ndlela isetyenziswa ngokuqhelekileyo kukukhetha amandla. Into ebizwa ngokuba sisifaniso. Ithelekiswa namandla emoto asetyenziswa kumatshini ofanayo wokuvelisa.
Indlela ethile yile: yazi ukuba kusetyenziswa kangakanani na amandla ombane aphezulu kumatshini ofanayo wemveliso wale yunithi okanye ezinye iiyunithi ezikufutshane, kwaye emva koko ukhethe i-motor enamandla afanayo okuqhuba uvavanyo. Injongo yokugunyazisa kukuqinisekisa ukuba imoto ekhethiweyo iyahambelana noomatshini bokuvelisa.
Indlela yokuqinisekisa yile: yenza i-motor iqhube oomatshini bokuvelisa ukuze baqhube, linganisa ukusebenza kwangoku kwemoto nge-clamp ammeter, kwaye uthelekise umlindi okhoyo kunye nomlinganiselo okhoyo ophawulwe kwi-motor nameplate. Ukuba umbane osebenzayo wemoto awufani nokulinganiswa okwangoku ophawulwe kwilebula, amandla emoto ekhethiweyo afanelekile. Ukuba ukusebenza kwangoku kwemoto malunga ne-70% ephantsi kunomlinganiselo olinganisiweyo obonakaliswe kwipleyiti yokulinganisa, kubonisa ukuba amandla ombane makhulu kakhulu, kwaye i-motor enamandla aphantsi kufuneka itshintshwe. Ukuba umlinganiselo osebenzayo wangoku we-motor ungaphezulu kwe-40% ephezulu kunomlinganiselo olinganisiweyo obonakaliswe kwipleyiti yokulinganisa, kubonisa ukuba amandla ombane amancinci kakhulu, kwaye i-motor enamandla amakhulu kufuneka itshintshwe.
Enyanisweni, i-torque (i-torque) kufuneka ithathelwe ingqalelo. Kukho iifomula zokubala zamandla emoto kunye netorque.
Oko kukuthi, t = 9550p / n
Apho:
P-amandla, kW;
Isantya esilinganiswe ngu-N semoto, R / min;
T-torque, nm.
Itorque ephumayo yemoto kufuneka ibe nkulu kunetorque efunwa ngumatshini osebenzayo, efuna ngokubanzi into yokhuseleko.
Ixesha lokuposa: Oct-29-2020