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Tread unit brake test system

A test system and brake technology, applied in the testing of machines/structural components, instruments, railway vehicle testing, etc., can solve the impact on the reliability and durability of tread unit brakes, the power consumption of compressed air during equipment operation, and the inability to verify tread unit brakes and other problems, to achieve the effect of shortening the fatigue test cycle, reducing a large amount of electric energy, and increasing the cyclic load

Active Publication Date: 2019-03-12
CRRC QINGDAO SIFANG ROLLING STOCK RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The test needs to be carried out continuously for 24 hours, and generally takes about 120 days
[0004] In the above-mentioned existing test method, the tread profiling device is completely fixed, that is, static, so it is impossible to verify the reliability of the tread unit brake due to the cyclic load generated by the wheel’s unevenness during the wheel rotation process. and durability; and because the test takes a long time, the operation of the equipment and the consumption of compressed air consume a lot of electricity

Method used

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  • Tread unit brake test system
  • Tread unit brake test system
  • Tread unit brake test system

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Embodiment Construction

[0020] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

[0021] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear" etc. is based on the positional relationship shown in the drawings, and is only for the convenience of description The present invention and simplified description do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present invention.

[0022] see figure 1 , is a structural schematic diagram of the tread unit brake test system of the present invention. Such as figure 1 ...

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Abstract

The invention provides a tread unit brake test system including a test table and an installing support arranged on the test table for installing a tread unit brake, a driving unit is arranged on the test platform, the power output shaft of the driving unit is connected with a transmissions unit, the transmission unit is used to convert the rotational motion of the power output shaft of the driving unit into the reciprocating swing motion, the swinging tail end of the transmission unit is provided with a tread profiling unit for simulating a wheel tread in an abutting manner, the tread profiling unit performs reciprocating motion under the driving of the transmission unit to simulate the uneven wheel, and the driving unit is electrically connected with a control cabinet for controlling the driving unit to move. The test system can verify the influence to the reliability and durability of the tread unit brake due to the period load generated by the unroundness of the wheel during the wheel rotation of the tread unit brake, thereby shortening the fatigue test period and reducing the electric energy consumption in the test.

Description

technical field [0001] The invention belongs to the field of tread unit brake tests, in particular to the field of cyclic load tests of tread unit brakes. Background technique [0002] The braking of rolling stock, urban rail transit vehicles and some rail engineering vehicles generally adopts the tread braking method. Tread braking, also known as brake shoe braking, refers to the use of brake shoes to press the rolling wheel tread tightly, and through the mechanical friction between the brake shoe and the wheel tread, the kinetic energy of the train is converted into heat energy, which is dissipated in the atmosphere and generates braking force . Specifically, the tread braking adopts the foundation braking device to transmit the braking motive force and generate the braking force, and the foundation braking device mainly includes a tread unit brake and a brake shoe. Among them, the tread unit brake uses compressed air as the power source, and the compressed air pressure ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01L5/28G01M17/08
CPCG01L5/28G01M13/00G01M17/08
Inventor 张昕孔德鹏黄士伟刁有彬王超恒宋传云
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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