RACK-TYPE AUTOMATIC MECHANICAL LOCK WITH WEDGE CLAMP FOR ROD OF BRAKE CYLINDER OF RAIL VEHICLE

摘要

FIELD: railway transport; parking brake locks.;SUBSTANCE: proposed automatic mechanical lock of brake cylinder rod contains clamping device, two pneumatic drives of stop clamps. Two racks with gear cut are attached to rod of brake cylinder from two side diametrically opposite relative to longitudinal axis. Each pressure shaft of stop wedge clamps consists of two halves arranged in housing and engaging along inclined plane. One half of pressure shaft is provided with gear cut similar to that of rod rack for displacement under pressure of pneumatic drive piston rod at locking along axis of brake cylinder rod getting into complete engagement with teeth of rack of brake cylinder, thus reliably holding it in brake-applied position. Other half of pressure shaft plays the part of wedge at locking the brake cylinder rod in brake-applied position holding gear half of pressure shaft in engagement with rod rack.;EFFECT: improved reliability of locking of brake cylinder rod, simplified design and reduced overall dimensions of lock.;1 dwg