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Steel circle spring brake block device

A technology of brakes and steel circles, applied in the direction of brake parts, brake types, brake components, etc., can solve the problems of easy sparks, easy damage of brake discs, and high braking noise of vehicles, and achieves weight reduction, Manufacturing-friendly effects

Inactive Publication Date: 2013-06-26
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, if tread braking is used, if the braking force exceeds the adhesion limit between the wheel and the rail, the wheel will be locked and slide; During the running process, the braking noise of the vehicle is loud and sparks are easy to be generated. The brake shoes have no self-regulation ability to the friction pair. When the line is running, the wheels, brake shoes and brake discs are easily damaged.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A steel round spring brake shoe device, the maximum elastic deformation is 10mm, the structure of the brake shoe device is as follows figure 1 As shown, it is composed of friction part 1, spring 2, sliding shaft 3, two steel plates, two sets of hollow steel pipes and disc slider 8, the length of sliding shaft 3 is 30mm, and is fixedly connected with friction part 1, and spring 2 is set On the sliding shaft 3, the spring 2 is a helical circular spring with a length of 30mm and a stiffness of 1.65MN / m along the axial direction. The end of the sliding shaft 2 is connected to the disc slider 8 through a countersunk screw 9, as Figure 4 shown. The sliding shaft 3 and the spring 2 are arranged in the first group of hollow steel pipes 5. There is a gap of 5 mm between the group of hollow steel pipes and the friction parts 1. The second group of hollow steel pipes 7 is provided with a disc slider 8. The first group The hollow steel pipes 5 and the second group of hollow steel...

Embodiment 2

[0025] A steel round spring brake shoe device, the maximum elastic deformation is 10mm, the brake shoe device includes friction parts, sliding shaft, spring, two steel plates, two sets of hollow steel pipes and disc sliders, the length of the sliding shaft is 20mm, fixedly connected with the friction parts, the spring is set on the sliding shaft, the spring is a helical round spring, the length is 30mm, the stiffness along the axis is 1.65MN / m, the end of the sliding shaft slides with the disc through the countersunk head screw block connection, the sliding shaft and the spring are set in the first group of hollow steel pipes, there is a gap of 4mm between the group of hollow steel pipes and the friction parts, the second group of hollow steel pipes is equipped with disc sliders, the first group and the second A set of hollow steel pipes is correspondingly welded to both sides of the first steel plate, and a screw hole is opened on the first steel plate, and a countersunk screw...

Embodiment 3

[0027] A steel round spring brake shoe device, the maximum elastic deformation is 10mm, the brake shoe device includes friction parts, sliding shaft, spring, two steel plates, two sets of hollow steel pipes and disc sliders, the length of the sliding shaft is 40mm, fixedly connected with the friction parts, the spring is set on the sliding shaft, the spring is a helical round spring, the length is 30mm, the stiffness along the axis is 1.65MN / m, the end of the sliding shaft slides with the disc through the countersunk head screw block connection, the sliding shaft and spring are set in the first group of hollow steel pipes, there is a gap of 6mm between the group of hollow steel pipes and the friction parts, the second group of hollow steel pipes is equipped with disc sliders, the first group and the second A set of hollow steel pipes is correspondingly welded to both sides of the first steel plate, and a screw hole is opened on the first steel plate, and a countersunk screw con...

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PUM

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Abstract

The invention relates to a steel circle spring brake block device which comprises a friction part, a sliding shaft, a spring, a steel plate, a hollow steel pipe and a disc sliding block, wherein the friction part is fixedly connected with the sliding shaft, and the spring is sleeved on the sliding shaft; and the tail end of the sliding shaft is connected with the disc sliding block through a sunkscrew, the sliding shaft, the spring and the disc sliding block are arranged in the hollow steel pipe, and the hollow steel pipe is welded with the steel plate. Compared with the prior art, the steelcircle spring brake block device provided by the invention can be automatically adjusted, has a simple manufacturing process and light weight and is convenient for maintenance, and simultaneously theweight of the whole device is lightened.

Description

technical field [0001] The invention relates to rail transit vehicle braking equipment, in particular to a steel round spring brake shoe device. Background technique [0002] In the braking device of rail transit vehicles, the brake shoe device is one of the important safety components to ensure the effective braking of the train, and it is also the specific actuator for braking. The traditional brake shoe device fixes the brake shoe on the brake shoe through the brake shoe pin In order to ensure effective braking, the brake shoe and the tread or brake disc must always be in close contact during braking. On the one hand, if tread braking is used, if the braking force exceeds the adhesion limit between the wheel and the rail, the wheel will be locked and slide; During the running process, the braking noise of the vehicle is loud and sparks are easily generated. The brake shoe has no self-regulation ability to the friction pair. When the line is running, the wheels, brake sho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D65/04F16D65/097
Inventor 张济民杨宽
Owner TONGJI UNIV
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