MECHANICAL FORCE-AMPLIFYING TYPE MOTOR-DRIVEN FRICTION BRAKING DEVICE FOR RAIL VEHICLE

WIPO Patent Application WO/2019/047047

A1

A motor-driven friction braking device for a rail vehicle, mainly composed of a torque motor, a speed reduction mechanism, an electromagnetic brake (1), a screw nut transmission mechanism and a brake friction pair (9). The torque motor, a lead screw (7), the speed reduction mechanism and the electromagnetic brake (1) are coaxially mounted; the torque motor is fixedly connected to the speed reduction mechanism, and the speed reduction mechanism is fixedly connected to the lead screw (7); the lead screw (7) is connected to a nut (8) by means of a non-self-locking thread, and one end of the nut (8) is connected to the brake friction pair (9); and the electromagnetic brake (1) is mounted on the lead screw (7). The described device uses a speed reduction mechanism to increase torque. In addition, the lead screw (7) may be deadlocked by means of the electromagnetic brake (1), thereby implementing the function of a parking brake. The present device is driven by a motor, is convenient to control, and has a compact structure, which is beneficial to reducing the overall complexity of a brake system and achieving a lightweight design.

WU MENGLING (CN)
CHEN MAOLIN (CN)
TIAN CHUN (CN)
PENG SHUN (CN)
FENG FULEI (CN)
ZHANG HANWEN (CN)
WENG JINGJING (CN)

PCT/CN2017/100632

March 14, 2019

September 06, 2017

Click for automatic bibliography generation  

SHANGHAI LIUPEI MECHANICAL AND ELECTRICAL TECH CO LTD (CN)

B61H13/20; F16D65/14

CN106224415A	2016-12-14
CN105736606A	2016-07-06
CN104389925A	2015-03-04
CN106218665A	2016-12-14
CN1038985A	1990-01-24
CN102506106A	2012-06-20
CN101456355A	2009-06-17
US4033435A	1977-07-05

See also references of EP 3680506A4

SHANGHAI SANFANG PATENT LAW OFFICE (CN)

View/Download PDF      PDF Help

Previous Patent: PHOTOGRAPHING METHOD AND USER TERMINAL

Next Patent: FINGERPRINT EVENT PROCESSING DEVICE AND METHOD