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High-speed train wheel brake disc with sliding block structure and installing method

A technology for high-speed trains and brake discs, applied in the direction of brake discs, brake types, brake components, etc., can solve problems such as unfavorable wheel strength, reduce the risk of fatigue cracks, ensure braking performance, and reduce processing costs Effect

Active Publication Date: 2015-12-09
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the wheel needs to be installed with 6 positioning pins and 12 bolt holes, it is necessary to process 18 through holes in the circumferential direction of the wheel, which is very unfavorable to the strength of the wheel

Method used

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  • High-speed train wheel brake disc with sliding block structure and installing method
  • High-speed train wheel brake disc with sliding block structure and installing method
  • High-speed train wheel brake disc with sliding block structure and installing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A high-speed train wheel-mounted brake disc with a slider structure, including two disc bodies 1, a wheel 2, fasteners, and a slider 3 and a sleeve 4; disc body through holes are evenly distributed along the circumference of the disc body 1; The disc body through holes include disc body bolt holes 5 and chute holes 11 arranged at intervals; wheel through holes are evenly distributed along the wheel circumference; wheel through holes include sleeve holes and wheel bolt holes arranged at intervals; the number of wheel through holes and The number of through holes in the disc body is the same. In this embodiment, there are 12 disc through holes and 12 wheel through holes, and the disc through holes on each disc include 9 disc bolt holes 5 and 3 chute holes 11; A chute 6, an angle of 30° is spaced between adjacent chute holes 11 and disc body bolt holes 5, and an angle of 120° is spaced between two adjacent chute 6s; similarly, adjacent sleeve holes and The interval betwee...

Embodiment 2

[0039] Unlike Embodiment 1, this embodiment provides a structure without wheel bolt holes.

[0040] There are 8 disc through holes and 8 wheel through holes, and the disc through holes on each disc include 4 disc bolt holes and 4 chute holes 11; there are 4 chute 6 on each disc, and the wheel The through hole includes 8 sleeve holes, the interval between the adjacent chute holes 6 and the plate bolt holes 5 is 45°, and the interval between two adjacent chute 6 is 90°; similarly, the adjacent The interval between the sleeve holes is 45°, and the interval between two adjacent slide block holes 8 is 45°; therefore, when the wheel-mounted brake shaft is assembled, 8 slide blocks and 8 sleeves are needed.

[0041] The installation method of high-speed train wheel-mounted brake discs, the steps are as follows:

[0042] S1: Take 4 sleeves 4, insert the 4 sleeves 4 into the sleeve holes of the wheel 2 at intervals of 90°,

[0043] S2: Take 4 sliders 3 and insert them on the sleeve 4...

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Abstract

A high-speed train wheel brake disc with a sliding block structure comprises two disc bodies and a wheel and further comprises sliding blocks and sleeves. Disc body through holes are evenly distributed along the circumference of the disc bodies. Sliding grooves are formed along the disc faces of the disc bodies and do not penetrate the double side disc faces. The disc body through holes comprise disc body bolt holes and sliding grooves, all of which are arranged at intervals. Wheel through holes are evenly distributed along the circumference of the wheel. The wheel through holes comprise sleeve holes and wheel bolt holes, all of which are arranged at intervals. The number of the wheel through holes is the same as the number of the disc body through holes and is smaller than 18. The sliding blocks can be inserted in the sliding grooves, and the sliding blocks are in clearance fit with the sliding grooves. The sleeves can be inserted in sliding block holes, and the sleeves are in clearance fit with the sleeve holes. A positioning pin mechanism in an original wheel brake disc is replaced with the structure of the sliding blocks and the sleeves, the number of the through holes required to be machined in the wheel and a wheel disc is reduced, the risk of the fatigue crack at the wheel through holes can be reduced, and the service life of the wheel is prolonged.

Description

technical field [0001] The invention belongs to the technical field of train braking devices, and designs a brake disc structure, in particular to a high-speed train wheel-mounted brake disc with a slider structure and an installation method thereof. Background technique [0002] At present, the basic brakes of domestic CRH series EMUs all adopt disc brakes, while EMUs are basically equipped with wheel-mounted brake discs. The current CRH series EMU wheel-mounted brake disc is mainly composed of 2 disc bodies, 6 positioning pins and 12 sets of fasteners; the disc body is a ring with a heat dissipation rib structure and there are 6 etc. Circumferentially distributed chute, in addition, there are 12 equicircumferentially distributed bolt holes on the disc body; the positioning pin is a solid shaft, and the cylindrical surface at both ends of the cylindrical shaft is milled to a certain depth symmetrically in the axial direction. After milling, the two The plane and the center...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/12F16D65/095
Inventor 王飞鲁文超于钦顺张昕张志强
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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