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A braking system for freight trains

A technology for freight trains and braking systems, applied in the field of braking systems for freight trains, can solve the problems of difficulty in ensuring railway transportation safety, increased wear of brake shoes, and increased operating costs, so as to reduce power and wear of brake shoes, improve Braking performance, compact structure effect

Inactive Publication Date: 2018-02-09
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Freight trains currently use friction brakes. With the development of fast and heavy-duty trains, friction brakes are becoming more and more difficult to withstand the problems caused by huge braking power, including wheel tread peeling, metal inlaid damage, brake shoes Aggravated wear, even polished shedding, etc., making it difficult to guarantee the safety of railway transportation and increase operating costs
According to the above analysis, the existing simple friction braking has been difficult to meet the development requirements of high-speed and heavy-duty trains in my country, and new and reliable braking methods are urgently needed.

Method used

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  • A braking system for freight trains
  • A braking system for freight trains
  • A braking system for freight trains

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Embodiment Construction

[0043] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] Such as figure 1 As shown, a brake system for freight trains includes an air brake mechanism, a three-way valve 4 and a hydraulic damper brake mechanism. The air brake mechanism includes a 120-type air distribution valve 3 and a brake cylinder 5, The 120-type air distribution valve 3 is respectively connected to the train pipe 1 and the brake cylinder 5 through the first brake branch pipe 2. It is also connected to the auxiliary air cylinder 301 and the acceleration release air cylinder 302. The brake cylinder 5 transmits the force to the cargo train. The brake shoe and the inlet of the three-way valve 4 are connected to the air distribution valve 3 through the original pipeline leading to the brake cylinder, and the two outlets are respectively connected to the brake cylinder 5 and the brake mechanism of the hydraulic damper.

[0045...

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Abstract

The invention relates to a braking system for a goods train. The braking system for the goods train comprises an air braking mechanism. The air braking mechanism comprises an air distribution valve (3) and a braking cylinder (5). The air distribution valve (3) is connected with a train pipe (1) and the braking cylinder (5) through a first braking branch pipe (2). The air distribution valve (3) is connected with an auxiliary reservoir (301) and an accelerated release reservoir (302). The braking cylinder (5) transmits acting force to brake shoes of the goods train. The braking system further comprises a three-way valve (4) and a hydraulic damper braking mechanism. An inlet of the three-way valve (4) is connected with the air distribution valve (3), and two outlets of the three-way valve (4) are connected with the braking cylinder (5) and the hydraulic damper braking mechanism correspondingly. Compared with braking systems in the prior art, the braking system for the goods train has the advantages of reducing abrasion of the brake shoes and damage to wheel treads and the like.

Description

technical field [0001] The invention relates to a braking system, in particular to a braking system for freight trains. Background technique [0002] In recent years, my country's railway transportation has been greatly developed, but it still cannot meet the increasing demand for transportation. In order to solve this contradiction well, my country vigorously develops heavy-duty express freight trains. [0003] To control the cost of cargo transportation, it is necessary to maintain a simple and low-cost bogie structure of the truck, mainly using the air brake system and friction brake. [0004] Freight trains currently use friction brakes. With the development of fast and heavy-duty trains, friction brakes are becoming more and more difficult to withstand the problems caused by huge braking power, including wheel tread peeling, metal inlaid damage, brake shoes Aggravated wear, even polished shedding, etc., making it difficult to guarantee the safety of railway transportat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/24B61H11/10
CPCB60T13/24B61H11/10
Inventor 应之丁夏健博颜松
Owner TONGJI UNIV
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