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Disc-shaped train brake device and lever used thereby

A technology of braking device and lever, applied in the field of disc train braking device and lever, to achieve the effect of safe and effective braking, timely supply and timely after-sales service

Active Publication Date: 2015-02-04
CHANGCHUN RAILWAY VEHICLE FACILITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a disc-shaped train brake device and the lever used therein, which can solve the problem of localized transformation of imported unit brake cylinders and clamp mechanisms

Method used

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  • Disc-shaped train brake device and lever used thereby
  • Disc-shaped train brake device and lever used thereby
  • Disc-shaped train brake device and lever used thereby

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Embodiment Construction

[0038] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] refer to Picture 1-1 and Figure 1-2 , showing respectively the structural front view and the bottom view of an embodiment of the lever used by the disc-shaped train braking device of the present invention, including a power arm 1-1 and a resistance arm 1-2, and the power arm 1-1 and resistance of the lever The length of arm 1-2 is determined by the design speed V of the train 0 , effective braking distance S e , mass m, axle load M, wheel diameter D, number of brake discs n and friction radius r, effective diameter of unit brake cylinder d z and the total length of the lever L and other parameters, the calculation process is as follows:

[0040]1. Determine the emergency braking distance S of the train z

[0041] Acc...

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Abstract

The invention provides a disc-shaped train brake device and a lever used thereby. The lever comprises a power arm and a resisting arm, wherein the lengths of the power arm and the resisting arm are determined by the following parameters: the designed speed per hour, the braking distance, the mass, the axle weight, the wheel diameter, the quantity and the friction radius of braking disc, the effective diameter of a unit braking cylinder and the total length of the lever. In the invention, the ratio of the power arm and the resisting arm of the lever used by the disc-shaped brake device is determined according to the parameters; and the invention can be matched with the existing unit braking cylinder for use to realize safe and effective braking of a high-speed train, so that the whole repair time and the maintenance cost of the train brake device can be reduced.

Description

technical field [0001] The invention relates to the technical field of train braking, in particular to a disc-shaped train braking device and a lever used therefor. Background technique [0002] At present, the most common braking method used by railway trains is brake shoe braking. The scheme is: a tile-shaped brake block made of cast iron or other materials, which hugs the wheel tread tightly during braking, and stops the wheel through friction. turn. In this process, the braking device converts huge kinetic energy into heat energy and dissipates it in the atmosphere. But the quality of this braking effect mainly depends on the dissipation capacity of frictional heat energy. When using this braking method, the friction area of ​​the brake shoe is small, and most of the heat load is borne by the wheel. The higher the speed of the train, the greater the heat load on the wheels during braking. If cast iron brake shoes are used, the temperature can melt the brake shoes; eve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61H13/28
Inventor 董恒刘锦辉魏岩军陈颖孙晋
Owner CHANGCHUN RAILWAY VEHICLE FACILITIES
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