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Dust cover and brake unit of rail transit vehicle

A rail transit vehicle and brake unit technology, applied in the direction of brake types, engine components, brake components, etc., can solve the problem that the dust cover cannot be quickly replaced and sealed, so as to improve the protection effect, save turnaround time, and reduce waste Effect

Active Publication Date: 2016-12-07
CHINA ACADEMY OF RAILWAY SCI CORP LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the existing dust cover that cannot be replaced quickly and has poor sealing performance when a fault occurs, the present invention provides a dust cover to achieve the purpose of quick replacement and ensure the sealing performance

Method used

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  • Dust cover and brake unit of rail transit vehicle
  • Dust cover and brake unit of rail transit vehicle
  • Dust cover and brake unit of rail transit vehicle

Examples

Experimental program
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Effect test

Embodiment approach 1

[0027] Such as Figure 1 to Figure 3 As shown, the embodiment of the present invention provides a dustproof cover, which includes a dustproof cover body 10 and a waterproof zipper 20 . The dust cover body 10 has a bellows section 12 and a first connection end 13 and a second connection end 14 arranged at both ends of the bellows section 12, wherein, along the direction from the first connection end 13 to the second connection end 14, the above-mentioned dust cover The diameter of the body 10 gradually increases (the diameters of the first connection end 13 and the second connection end 14 can also be the same, and the above-mentioned dust cover body 10 can be selected according to different installation environments, and will not be described in detail here), that is, the anti-dust cover The dust cover body 10 is generally in the shape of a circular frustum. The dust cover body 10 is along the rotation axis direction ( figure 1 The middle longitudinal direction) is provided ...

Embodiment approach 2

[0035] Such as Figure 4As shown, the present invention also provides a braking unit for rail vehicles, including a screw 50 and a dust cover sleeved on the screw 50 . The structure, working principle and beneficial effects of the dustproof cover in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

[0036] Preferably, the braking unit of the rail transit vehicle also includes a brake cylinder 60 and a connecting device 70, one end of the screw rod 50 is passed through the brake cylinder 60, the connecting device 70 is located at the other end of the screw rod 50, and the dust cover body 10 The first connecting end 13 is connected to the connecting device 70 through the fixing assembly 80 , and the second connecting end 14 is connected to the brake cylinder 60 through the fixing assembly 80 . The connecting device 70 in the embodiment of the present invention may be a bracket or a connecting rod.

[0037] Wherein the fixing assembly 80 is ...

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Abstract

The invention provides a dust cover and a brake unit of a rail transit vehicle. The dust cover comprises a dust cover body which is provided with a longitudinal notch in the direction of a rotating axis, a waterproof zipper arranged on the inner side of the dust cover body and located at the longitudinal notch, and the extending direction of the waterproof zipper is the same as that of the extending direction of the longitudinal notch. The dust cover and the brake unit of the rail transit vehicle have the beneficial effects that the waterproof zipper is arranged on the inner side of the dust cover body, impurities such as water, dust and oil sewage can be effectively prevented from entering the dust cover body, and the protection effect of the dust cover is improved.

Description

technical field [0001] The invention relates to the field of braking of rail transit vehicles, in particular to a dust cover and a braking unit of rail transit vehicles. Background technique [0002] The dust cover is widely used in the braking unit of the rail vehicle braking system. It is mainly used between the brake cylinder of the braking unit and the connecting device. When the screw is extended or retracted, it can flexibly follow the telescopic deformation and at the same time, avoid moisture The entry of impurities such as dust, oil, etc. may lead to increased wear or stagnation of the screw rotation, and even premature wear. [0003] Braking system The braking unit is an important component of a rail transit vehicle, and it plays a very important role in ensuring that the vehicle runs from normal operation to stopping. In the actual application process, its performance directly affects the braking performance of the vehicle, which requires it to have good stabilit...

Claims

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Application Information

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IPC IPC(8): F16J15/00F16D65/00
CPCF16D65/00F16J15/00
Inventor 孙广合韩海山刘鹏
Owner CHINA ACADEMY OF RAILWAY SCI CORP LTD