HAULAGE EQUIPMENT OF ARMORED REPAIR-AND-RESCUE VEHICLE AND HYDRAULIC SYSTEM OF HAULAGE EQUIPMENT WINCH DRIVE Russian patent published in 2011 - IPC B66D3/18 B66D1/08 B62D49/06 F41H7/02 

FIELD: transport.

SUBSTANCE: invention relates to haulage equipment of armored repair-and-rescue vehicles and its winch drive. Haulage winch drum drive incorporates hydromotor with planetary reduction gear. Said planetary reduction gear incorporates p.t.o-shaft arranged in parallel about planetary train driving rope spooling drums and, to provide for two-speed power take-off for reversible hydraulic pump, it is communicated via pressure and return lines with said reversible hydraulic pump. Formed local hydraulic circuit served to drive winch winding drum. To change direction of rope motion between rope driving drums and winding drum, pulleys are mounted. Auxiliary winch planetary reduction gear incorporates hydraulic device to lock annular ring. Winch drive local hydraulic circuit pressure and return lines downstream of reversible hydraulic pump are intercommunicated via check valve, while upstream of reversible hydraulic pump they communicate via hydraulic line tolerable pressure regulator. Pressure line incorporates pressure valve and check valve arranged in parallel with the former to maintain preset pressure level in said hydraulic line in unwinding rope from winding drum. Drain line running from haulage drum drive hydromotor incorporates throttle, while return line of local hydraulic circuit communicates via drain branch with said hydraulic line upstream of said throttle.

EFFECT: higher efficiency of haulage equipment and faultless operation.

8 cl, 9 dwg