Parking brake device for rail transit vehicle and manual mitigation method thereof
A rail transit vehicle, parking braking technology, applied in the direction of brake actuators, gear transmission mechanisms, mechanical equipment, etc., can solve the problems of many parts, high processing and assembly requirements, complex structure, etc., and achieve high reliability and durability High performance, convenient engineering operation, simple and compact structure
Pending Publication Date: 2019-06-04
CRRC CHANGZHOU TECH MARK IND CO LTD +1
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Abstract
The invention discloses a parking brake device for a rail transit vehicle. The parking brake device for the rail transit vehicle includes a cylinder block, a parking piston, a brake lever, a cylinderhead, and a parking spring, wherein the center of the parking piston is provided with a limit cover protruding upwardly; a spline body is arranged on the middle portion of the brake lever; a spline groove is arranged on the top portion of the limit cover; the spline body of the brake lever is in dynamic fit with the limit cover; the upper end of the brake lever penetrates through the spline grooveand extends into a second cavity; a guide seat is fixed at the upper end of the brake lever; the limit cover is sleeved with a brake lever spring; the brake lever is provided with a first rotation position for staggering the spline body and the spline groove of the limit cover, and a second rotating position for matching the spline body with the spline groove of the limit cover; the cylinder headis provided with a rotating disc, a rotating disc spring, a first stop member corresponding to the first rotating position of the brake lever, and a second stop member corresponding to the second rotating position of the brake lever; the rotating disc is connected to the guide seat; and the rotating disc is provided with a radial shifting lever. By means of the parking brake device for the rail transit vehicle, pneumatic mitigation, parking brake and manual mitigation are achieved. The parking brake device for the rail transit vehicle has the advantages of less parts, simple and compact structure, light weight and low manufacturing cost, thereby achieving engineering application conveniently.
Application Domain
Brake actuating mechanismsActuators
Technology Topic
Automotive engineeringCylinder block +4
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