- ti os6 truy~n.
2.H~ thOng tll dOng khong eht thang m6y eao tOe
D~ truy(!n dQng thang mliy cd t6c dQ di chuy(!n bu6ng thang v ~ 3 rn/s, th1.1bng dung M truy(!n d¢ng -mQt chi(!u. Bu6ng thang d1.1Qc treo Mn puli keo cap n6i tI1,1c tiep v{ji tn,IC dQng co truy(!n dQng khOng qua hQp giAm t6c. Trong m~ch di(!u khien thang mliy cao t6c, cOng tlic chuy~n d6i bing co tay ~t CO" khi d1.1QC thay the bAng cOng tAc chuy~n d6i tling phi ti~p di~m. Vi vt'H t6c dQ di chuy~n bu6ng thang lan, cOng tAc chuy~n d6i bing co kh{ lilm vi~c khOng tin c$.y, gAy ra tieng 6n Um. C6ng t~c chuy~n d6i t4ng phi ti~p di~m th1.1bng dung Iil b¢ cam bi~n vi trl kit~u cam ung va b¢ cam bien vi trf dung te bAo quang di~n. T~n hlnh 3-7a giOi thi~u cAu t~o vil d~c tuyen clla cOng tAc chuy~n d6i bing dung bet cam bien vi trf kit~u cAm dng. Ctlu t~o cua no bao g6m : m~ch tu M 2, cu¢n dAy 3. Khi m(lCh tu M, do di~n khang cua cu¢n dAy be, dong xoay chil!u qua cuQn dAy kha Ian. Khi thanh sAt d¢ng 1 lilm kin m~ch til:, tu thOng sinh ra trong m~ch tu tAng, lilm tAng di~n cam L cua cuQn dAy vil dong di qua cuQn dAy sll giam xu6ng. S\1 ph\1 thu¢c diQn cam cu¢n dAy L vilo vi trf thanh dQng 1 d1.1Qc bieu dii'!in tr~n hlnh 3-7b.
Neu dtlu -n6i tiep vtJi cuQn dAy cua b¢ cAm bi~n mQt role ta se d1.1Qc mOt ph~n to: phi ti~p d.i~m d~ dung trong M th6ng di~u khi~n. Tuy .thuQc van m\1c dich su d\1ng, co th~ dung no lilm cOng tAc chuy~n d6i tling, cam bien de th\1C hi~n dung chinh xac bu6ng thang ho$,c cAm bi~n d~ chi thi vi trf bu6ng thang v.v ...