Method and device for deceleration and braking of electric vehicles and application of screw drive mechanism

A technology of electric vehicles and screw drive, which is applied to the operating mechanism of railway vehicle brakes, brake transmission devices, brakes, etc. Rod error and other problems, to avoid the brake caliper not in place, high-precision braking effect, and eliminate potential safety hazards
CN104802824BInactive Publication Date: 2017-06-23FOSHAN ANJIELUN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FOSHAN ANJIELUN TECH CO LTD
Publication Date
2017-06-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for realizing decelerating brake of a rail electric vehicle. The method comprises a step of arranging a pedestal, vehicle inner and outer brake calipers, a motor, a big crankshaft and a link transmission mechanism, and also comprises the following steps: (1) flexibly connecting the motor with a translation mechanism to convert the rotation of the motor into linear motion, pushing the link transmission mechanism through the translation mechanism via a transmission link to relieve and brake wheels of the rail electric vehicle; (2) meanwhile moving the transmission link under pushing of the translation mechanism to realize an effect of increasing thrust to naturally slow down a brake end point, and acting most of impact force stressed on the transmission link on the translation mechanism and a mounting seat thereof when the transmission link is close to or at the brake end point. The invention also discloses an electric vehicle decelerator device and application of the lead screw transmission mechanism. The brake process is stable, inadequate brake caused by kinematic accumulative error can be effectively avoided, the impact and the vibration to the motor are effectively reduced, a motor shaft is protected, and the brake precision is improved.
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Description

technical field

[0001] The invention relates to the technical field of a rail electric vehicle reducer, in particular to a method for decelerating and braking an electric vehicle, a device thereof, and an application technology of a screw drive mechanism. Background technique

[0002] The structure of the existing electric vehicle reducer on the railway or subway is generally composed of internal and external brake calipers, bearings, motors, multi-link transmission mechanisms, etc., and some products also include floating rails and brake rails. . In the past, this kind of electric reducer has always had some difficult problems that are difficult to overcome but may endanger driving safety:

[0003] 1) When the reducer is braked or relieved in place, the motor shaft brakes suddenly, and the torsional stress of the motor shaft cannot meet the repeated impact and is easily deformed or twisted.

[0004] 2) When the vehicle reducer is braking or releasing, the motor shaft is a...

Claims

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