ACTUATING SYSTEM OF FRICTION COUPLING OF GEAR REDUCTION

摘要

FIELD: machine building.SUBSTANCE: actuating system of friction coupling includes friction coupling with hydraulic control to connect the shafts of gear reduction, oil case, gear-type lubrication pump and control pump with pressure-reducing valves, lubrication line, control unit and pipelines. Oil filter and oil cooler are arranged in series in lubrication line. Control pump inlet is connected via pipeline to lubrication line between oil filter and oil cooler. Outlet connection pipe of control pump is connected via pipeline with electrically driven shutoff-control valve arranged in it to the control cavity of friction coupling. Pressure-reducing valve of the control pump is connected via outlet pipeline to oil case.EFFECT: improving reliability and accuracy of actuation of hydraulically operated friction couplings.1 dwg