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Connecting structure of wheel mounted type brake disc for rail transit vehicle

A technology for rail transit vehicles and connecting structures, which is applied in the field of brake discs for rail transit vehicles, can solve the problems of inaccurate positioning structure, large braking torque, and low reliability of train operation, and achieves high installation and positioning accuracy, maintenance and repair. Convenience, Enhanced Reliability Effects

Active Publication Date: 2016-03-30
CRRC CHANGZHOU TECH MARK IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the connecting flange structure is connected to the wheel by bolts, without an accurate positioning structure, and the braking torque is transmitted through the bolts, the braking torque borne by the connecting bolts during the braking process is relatively large, and the reliability of the train operation is not high

Method used

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  • Connecting structure of wheel mounted type brake disc for rail transit vehicle
  • Connecting structure of wheel mounted type brake disc for rail transit vehicle
  • Connecting structure of wheel mounted type brake disc for rail transit vehicle

Examples

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Embodiment Construction

[0022] See Figure 1~4 As shown, the connection structure of the wheel-mounted brake disc for a rail transit vehicle of the present invention includes a wheel connector 4 , a disc body 1 and a connecting screw 3 for connecting the wheel connector 4 and the disc body 1 .

[0023] See Figure 1~4 As shown, the disc body 1 of the present invention includes an integrated inner friction ring 1-1, an outer friction ring 1-2 and a dish bowl 1-4, an inner friction ring 1-1, an outer friction ring 1-2 and a dish bowl 1-4. 4 have the same axis, the inside of the inner friction ring 1-1 is provided with an inner friction surface 1-8, and the outer side of the outer friction ring 1-2 is provided with an outer friction surface 1-7, and the inner and outer friction surfaces and the brake pads In contrast, there is a distance h between the inner end surface of the dish bowl 1-4 and the inner friction surface 1-8 of the inner friction ring 1-1. 1-4 is connected with the inner friction ring ...

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Abstract

The invention relates to a connecting structure of a wheel mounted type brake disc for a rail transit vehicle. The connecting structure comprises a wheel connecting part, a disc body and connecting screws. The disc body comprises an inner friction ring, an outer friction ring and a disc bowl which are integrated. The distance between the inner end face of the disc bowl and the inner friction surface of the inner friction ring is h. The disc bowl is connected with the inner friction ring through an arc-shaped center plate. Radiating ribs are arranged between the inner friction ring and the outer friction ring in the circumferential direction. The inner end face of the disc bowl is provided with an inner positioning hole matched with the wheel connecting part. The end of the wheel connecting part is arranged in the inner positioning hole of the disc bowl. The disc bowl is provided with at least three step holes, and the wheel connecting part is provided with step mounting holes corresponding to the step holes. Elastic cylindrical pins are arranged in the step holes of the disc bowl and the step mounting holes of the wheel connecting part. The connecting screws penetrate through the disc bowl and the elastic cylindrical pins and are connected with the wheel connecting part. The connecting structure is simple, higher in assembling and positioning precision and convenient to dismount, structural stress in the braking process can be reduced, and the reliability of the connecting structure is improved.

Description

technical field [0001] The invention relates to a connection structure of a wheel-mounted brake disc for rail transit vehicles, and belongs to the technical field of brake discs for rail transit vehicles. Background technique [0002] The disc brake device is the main basic braking method of rail transit. When braking, the brake caliper suspended on the bogie pushes the brake pads to press the brake disc to perform braking. At present, the existing brake discs can be divided into two types according to their installation structures: shaft-mounted and wheel-mounted, which are respectively installed on the axles and wheels correspondingly. Common wheel-mounted brake discs are usually fastened and installed on both sides of the wheel web by two independent integral or split friction rings. The friction rings are evenly distributed with fastener connection holes and positioning pin installation grooves in the circumferential direction. There are heat dissipation ribs, and the h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/12F16D65/00F16D65/84
Inventor 方明刚郭立宾金文伟黄彪王常川
Owner CRRC CHANGZHOU TECH MARK IND CO LTD
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