WINCH WITH DRIVE FROM VEHICLE TRANSFER CASE Russian patent published in 2002 - IPC

FIELD: transport engineering; load-lifting devices. SUBSTANCE: invention relates to winches installed on vehicles and coupled with transfer cases. Proposed winch has winding drum installed on two supports, reduction gear with bevel and planetary trains and mechanisms for stopping and disengaging of winding drum. Bevel and planetary trains of winch are connected by shaft, and winding drum stop mechanism, is made in form of overrunning toothed clutch coupling one shaft conveying torque to drum with support. This clutch is made in form of two relatively spring-loaded clutch members with end face power and wedge teeth. One of clutch members is provided with elongated power tooth and other is provided with split lock ring with end face wedge teeth. Elongated power tooth is driven into split of lock ring. Wedge teeth on clutch members are made with circumferential displacement relative to power teeth through half of width of elongated power tooth. One of said clutch members is connected with support. Winding drum disengagement mechanism has pneumatic cylinder secured on support and connected with sun gear of planetary gear train installed for axial displacement on coupling shaft. Sun gear is spring-loaded. One of clutch members is installed on additional shaft. Normally applied brake operated by energy accumulator is installed between additional shaft and support. Brake is furnished with controlled brake chamber. EFFECT: increased traction speed and efficiency, simplified design and control of winch. 3 cl, 9 dwg