BAI 11: KHA.O SAT MACH DIEU KHIEN MAY PHAY .
Gi6i thieu:
Bai nhi~ cung c~p cho h9c sinh nhfrng kiSn thuc vS phuong phap khao sat m~ch diSu khi@n may phay trong nghS Bao tri h~ th6ng thiSt bi ca khi m~ch diSu khi@n may phay trong nghS Bao tri h~ th6ng thiSt bi ca khi
Muc tieu:
- Phful tich duqc nguyen ly ho~t d<)ng cu.a m~ch diSu khi@n may phay.
N(>i dung chinh:
1. Phan tich, khao sat sO' d6 nguyen Iy m~ch di~u khi~n va SO' d6 lip dit
Thvc hi~n khao sat tu di~n diSu khi@n may phay va phan tich ban ve nguyen ly (theo tai li~u ky thu~t) (theo tai li~u ky thu~t)
- Nguyen ly ho~t d{lng m~ch d{lng l\fc va m~ch di~u khi~n
' ' >
De chQn chieu quay d¢ng ca tnJc chinh khi phay (thuJn. nghich) t:ru:&c tien ta h~t c6ng tac QS2 sau do ta bJt cong tic ngu6n QS 1 den ngudn ELl sting d(mg co bom diu dang ho~t d()ng • d(mg co tf\lC chinh chua ho'1,t d(mg .
Khi bfun nut Sb l thl congtacto K.Jvll co di~n dgng co m,1c chinh. quay theo chiSu da ch9n . Khi nMn: SB2 ho?,c SB3 thi congtactcr Kl mfty di~n , Congtactcr K2 c6 c.1i9n dtra di9n m6t chi6u vi10 thtJc hi<;:n qua tiinh ham d9ng nang cho d{ing ccr tTIJc chinh dam bao dung may nhanh. Thcri gian ham du:Q'c cai clij.t b&i role thoi gian KTI va du:gc baa v~ bing rcrle t6c d¢ KA..2.Tmy~n d¢ng ban may : Mudn ban may di chuy8.n theo phunng d9c ngang hoJc dimg ta ch9n cong t~c SA4 a
vi tri X ,Y, Z. N~u ta chQn congt&c SA3 & vi td 6,.7 (vi tri ma ban may di chuy6n nhanh sang trai) hoJc cl vi tri 8 (ban may di chuy&l ch~m sang tnii )hay & vi tri 3,4 (ban may di chuy~n .nhanh sang phai) ho{ic 6 vi tri 2 (ban may di chuySn chjm sang phai).
Khi mo cong tac SA2 thl d{lng ca bam mt&c lam mat c6 dien .
N6u trong qua trlnh ch~y ma gtlp S\l'. cA thi nh!n nut SB3 d:(>ng CO' tTIJC chinh va dqng CO' di
~ l ,. f... , /... ., ~
chuyen ban. se mat dien. Neu khm dQng ma bi k~t so thi ta nhan nut SB4 nhap• may • neu muon '
b~t cten chieu sang thl b{it congHic SAl.
2. Cau hoi ki6m tra