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H thng thy lc ca my xc o

H thng thy lc ca my xc o

H thng thu lc trn my xc o gm mt s chi tit chnh sau: thng du thulc, bm thu lc, cm van phn phi chnh v cc van iu khin, m t quay toa,m t di chuyn, cc xi lanh thu lc, ng ng dn du, lc du thu lc, kt lmmt du thu lc.

Hnh nh

Nguyn l lm vic

Khi ng c (1) lm vic. Cng sut c truyn qua bnh n bm thu lc. Bmthu lc (2) lm vic, ht du t thng du v y n cm van phn phi chnh (8).Trn ca bin ngi vn hnh stc ng n cc cn iu khin thit b cng tc, quaytoa, di chuyn. Khi c stc ng ca ngi vn hnh mt dng du iu khin s

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c mi n cm van phn phi chnh. Dng du iu khin ny s c tc dngng/mcm van phn phi tng ng cho thit b cng tc, quay toa, di chuyn.ng du chnh n cc xi lanh (7) cn, tay gu hoc gu. Nh vy thit b cng tcc th lm vic theo mun ca ngi vn hnh. ng du i n m t quay toa(5) hoc m t di chuyn (3) lm cho cc m t ny quay. M t s ko cho toa quay

hoc ko xch thng qua truyn ng cui v bnh sao lm cho xe di chuyn c.ng du trc khi vthng c lm mt kt mt v c lc bn lc du thulc. p lc ca h thng thu lc c gii hn bi van an ton, thng thng clp cm van phn phi chnh. Khi p lc h thng t n gii hn ca van th vans mra v cho du chy v thng.

Bm thy lc v siu khin tc ng c

Hnh nh

H thng thu lc trn my o thng thng c 02 bm thu lc chnh kiu piston

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(6), (8), mt bm du iu khin (7) kiu bnh rng. Trn cc my cng sut ln cthm mt mch thu lc lm mt ring, th thng c thm bm du thu lc mchqut lm mt kiu piston. u ra ca bm, p sut h thng, tc ng c c milin h mt thit vi nhau trong qu trnh lm vic v chng c iu khin thngqua hp iu khin bm v ng c (1). Trong qu trnh lm vic hp en thng

xuyn kim sot cc tn hiu u vo t: tay ga (11), mn hnh (12) hai cm bin plc u ra ca bm (9), cm bin ga (2), cm bin tc ng c (5). Qua hp en(1) s gi tn hiu iu khin n biu tc (3) iu khin tc ca ng c.Gi tn hiu iu khin n van in t t l (10). Dng du iu khin tbm duiu khin (7) i qua van in t t ln iu khin gc ma nghing ca 02 bmthu lc chnh. iu ny cho php kim sot c u ra ca bm ph hp vi tilm vic v cng sut ca ng c.

h thng thu lc lm vic tt th tt c cc chi tit ca h thng thu lc phi trong tnh trng k thut tt. Cc tn hiu u vo v cc tn hiu u ra ca hp iukhin(1) phi nm trong tiu chun ca nh sn xut.K.S Nguyn nh Trng