Pneumatic-electric braking system for goods train

A technology for freight trains and braking systems, applied in the directions of brakes, pneumatic brakes, brake transmission devices, etc., can solve the problems that cannot be completely overcome, the development of brake control technology is limited, and there are no freight cars, and achieves simple structure and low maintenance costs. , the effect of long life

Inactive Publication Date: 2017-10-27
TONGJI UNIV
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AI Technical Summary

Problems solved by technology

[0004] The development of brake control technology is severely limited due to the absence of electricity for existing trucks
For example, Chinese patent 201610019048.6 discloses an air brake system for freight trains, which can meet the braking requirements of freight trains under dif

Method used

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  • Pneumatic-electric braking system for goods train

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Example Embodiment

[0028] Example

[0029] An air-electric braking system for freight trains, its structure is as figure 1 As shown, it includes the first combined dust collector 3.1, 120 type distribution valve 3.2, auxiliary air cylinder 3.7, acceleration relief air cylinder 3.8, brake cylinder 3.4, mechanical proportional valve 3.3, weighing mechanism 3.6 and pressure reducing air cylinder 3.5 The air brake system module 3 composed of connection, the air-electric brake system also includes an electric control dynamic adjustment module 2, and a pneumatic power generation module 1 that supplies power to the electric control dynamic adjustment module 2. The electric control dynamic adjustment module 2 includes The switching solenoid valve 2.1, the proportional solenoid valve 2.2, the relay valve 2.3 and the brake electronic control unit 2.4, where the switching solenoid valve 2.1 is connected to the pipeline between the 120 type distribution valve 3.2 and the mechanical proportional valve 3.3, from...

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Abstract

The invention relates to a pneumatic-electric braking system for a goods train. An air brake system is additionally provided with a pneumatic power generating module and an electric control dynamic adjustment module, wherein the air brake system is suitable for conventional goods trains and is composed of a train pipe, a 120# distribution valve, a braking cylinder, an auxiliary air cylinder, an acceleration relief air cylinder and a mechanical empty and heavy vehicle adjusting assembly, and the mechanical empty and heavy vehicle adjusting assembly is composed of a mechanical proportional valve, a weight measuring mechanism and a pressure reduction air cylinder; the pneumatic power generating module is composed of an air storage cylinder assembly, a pneumatic power generator and a storage battery unit, and the storage battery unit comprises a storage battery and a management system; the electric control dynamic adjustment module is composed of a brake electronic control unit, a switching electromagnetic valve, a proportional electromagnetic valve, a relay valve and sensors; and the pneumatic power generating module is used for supplying power to the electric control dynamic adjustment module, and pneumatic-electric braking is finally achieved. Compared with the prior art, the pneumatic-electric braking system for the goods train can meet the requirement for precise control over braking under no-load or heavy-load conditions and has the advantages of skid resistance and high sensitivity.

Description

technical field [0001] The invention relates to a braking system for freight trains, in particular to an air-electric braking system for freight trains. Background technique [0002] In view of the fast and heavy-duty development of railway freight cars, the requirements for the control of the train braking system are also getting higher and higher. From the anti-skid design of high-power braking to the adjustment of the huge difference in the braking force of empty and heavy vehicles, as well as the formation of mixed trains and long trains, the existing mechanical control is difficult to meet the requirements of improving braking performance, and electronic control methods are urgently needed . [0003] Under the condition that the existing freight trains are difficult to implement the cable power supply operation of fixed marshalling trains, for the original train air brake basic mode, an electronic control unit, a solenoid valve and a relay valve for flow amplification ...

Claims

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Application Information

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IPC IPC(8): B61H11/06B60T13/68F01K27/00
CPCB60T13/68B61H11/06F01K27/00
Inventor 应之丁宋英子吴晓倩高伟航
Owner TONGJI UNIV
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