A braking system for freight trains

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...

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.

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