SPRING PARKING BRAKE WITH BRAKE REPEATED SETTING MECHANISM WITH BALL SCREW Russian patent published in 2017 - IPC B61H13/00 B61H13/34 B60T17/00 

FIELD: transportation.

SUBSTANCE: group of inventions relates to railway transport. Parking brake comprises air cylinder, piston, spring, manual control wheel, inlet hole for air pressure application for piston movement to second wall with action against spring, brake repeated setting manual mechanism, spindle and pusher. Cylinder comprises cylindrical wall and first wall opposite to second wall. Spring passes between piston and second wall for piston displacement to first wall at cylinder depressurization. During operation spindle is connected with manual control wheel for brake repeated setting manual mechanism movement. Pusher is connected with brake repeated setting manual mechanism. According to second version, brake repeated setting manual mechanism comprises threaded shaft, having first end connected to spindle first end with possibility of sliding, and second end connected with pusher, and ball nut made with possibility of rotation in engagement with threaded rod.

EFFECT: enabling higher efficiency of parking brake operation.

18 cl, 7 dwg