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1. (WO2018041111) BRAKE CYLINDER CLEARANCE ADJUSTMENT MECHANISM, GUIDE RESISTANCE ADJUSTING MODULE AND BRAKE CYLINDER

Pub. No.:    WO/2018/041111    International Application No.:    PCT/CN2017/099545
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Wed Aug 30 01:59:59 CEST 2017
IPC: F16D 65/56
Applicants: CRRC QISHUYAN INSTITUTE CO., LTD.
中车戚墅堰机车车辆工艺研究所有限公司
CRRC CHANGZHOU TECH-MARK INDUSTRIAL CO., LTD
常州中车铁马科技实业有限公司
Inventors: ZENG, Liangbin
曾梁彬
HAN, Hongwen
韩红文
WANG, Yongsheng
王永胜
ZHANG, Hongbo
张洪波
HUO, Wei
霍伟
LEI, Guowei
雷国伟
Title: BRAKE CYLINDER CLEARANCE ADJUSTMENT MECHANISM, GUIDE RESISTANCE ADJUSTING MODULE AND BRAKE CYLINDER
Abstract:
Disclosed are a brake cylinder clearance adjustment mechanism, a guide resistance adjusting module and a brake cylinder, belonging to the technical field of vehicle braking. The inner end of a piston pipe (122) embedded in an inner cavity of a cylinder cover pipe (113) of the mechanism is axially and fixedly connected to a piston (121). The outer end of the piston pipe (122) is fixedly connected to a guide resistance adjusting device body (141), and a square key groove and a mounting groove for a wedge-shaped adjusting block (115) are axially formed in the cylinder cover pipe (113). A cone sleeve (145) and a guide nut (143), having end faces thereof engaged with each other, are mounted in the guide resistance adjusting device body (141); and one end, away from the engagement, of the cone sleeve (145) and of the guide nut (143) respectively abut against a resistance adjusting spring (147) and a guide spring (144). An adjusting lead screw shaft (152) with an adjusting nut (131) screwed thereon is arranged in an inner hole of the guide nut (143), and a conical-toothed sliding sleeve (132) is arranged outside the adjusting nut (131). The outer circle of the conical-toothed sliding sleeve (132) is fixedly connected to a square key (198) in the square key groove on the cylinder cover pipe (113); a wedge-shaped adjusting block (115) with an adjustable radial position is mounted in the mounting groove for the wedge-shaped adjusting block (115) of the cylinder cover pipe (113); and the adjacent ends of the square key (198) and the wedge-shaped adjusting block (115) are respectively provided with an outer wedge-shaped face and an inner wedge-shaped face. By means of the brake cylinder clearance adjustment mechanism and the guide resistance adjusting module, the adjustability of the maximum adjustment-free stroke value of a brake cylinder is achieved, and the stability of a clearance adjusting amount is ensured.