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Axle-mounted brake disc device for railway vehicle

A technology for railway vehicles and brake discs, applied in the directions of brake discs, brake types, brake components, etc., can solve problems such as loosening and concave deformation of gaskets, and achieve the effect of preventing bolt rotation and reliable anti-loosening performance.

Pending Publication Date: 2019-07-09
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

After the above utility model is used for a long time, the gasket will be concave and deformed, resulting in the risk of loosening

Method used

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  • Axle-mounted brake disc device for railway vehicle
  • Axle-mounted brake disc device for railway vehicle
  • Axle-mounted brake disc device for railway vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] See Figure 1 to Figure 3 , This embodiment includes a disc body 1, a disc hub 2, a spacer 3, an elastic pin 4, a bolt 5, a disc spring 6 and a self-locking nut 7. A flange 2-2 is provided on the outer circumference of the front side of the disc hub 2, and disc body connecting claws 1-1 are evenly distributed on the inner wall of the disc, and the disc body connecting claws 1-1 are enclosed by the flange 2-2 and the spacer ring 3. For clamping, the number of disc body connecting claws 1-1 is an even number or a multiple of 3 (including 3).

[0018] Each disc connecting claw 1-1 is provided with connecting claw bolt holes 1-2, and flange 2-2 is provided with bolt holes corresponding to the connecting claw bolt holes 1-2, and spacer ring 3 is provided with bolt holes corresponding to the connecting claw bolt holes 1-2. The bolt holes 1-2 of the connecting claw correspond to the bolt holes one by one. The bolt holes on the flange are flange stepped holes 2-3 composed of ...

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PUM

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Abstract

The invention discloses an axle-mounted brake disc device for a railway vehicle. The axle-mounted brake disc device comprises a disc body, a disc hub, a space ring and bolts, a connecting claw bolt hole is formed in each disc body connecting claw, bolt holes in a flange are flange step holes composed of flange small-diameter holes in the outer side and flange large-diameter holes in the inner side, the bolt holes in the space ring are space ring step holes composed of space ring small-diameter holes in the outer side and space ring large-diameter holes in the inner side, elastic pins are arranged in at least two of all the connecting claw bolt holes, the front ends of the elastic pins are inserted into the flange large-diameter holes, the rear ends of the elastic pins are inserted into thespace ring large-diameter holes, the elastic pins and the flange large-diameter holes are in interference fit, the connecting claw bolt holes and the space ring large-diameter holes are in interference fit, the diameters of inner holes of the elastic pins are less than the diameters of the flange small-diameter holes and the diameters of the space ring small-diameter holes, the bolts pass throughthe flange step holes, the connecting claw bolt holes and the space ring step holes, the tail parts of the bolts penetrate out of the space ring, and dished spring pieces and self-locking nuts are connected to the tail parts of the bolts. The axle-mounted brake disc device has a self-centering function when being assembled, and connecting loosening can be well prevented.

Description

technical field [0001] The invention relates to a shaft-mounted brake disc device for railway vehicles. Background technique [0002] Shaft-mounted brake discs have been widely used in urban rail, subway, passenger cars and EMU trailer vehicles, mainly to make up for the lack of vehicle electric braking force or power car braking force. A shaft-mounted brake disc device generally includes a disc body for friction, a disc hub connected to the shaft to transmit braking torque, a spacer, bolts, nuts and other parts for fastening. At present, the shaft-mounted brake disc of the German Knorr-Bremse Company adopts the connection method that the bolt empty sleeve passes through the disc body, the hub and the spacer, and at the same time adds an aluminum wire as an assembly centering element. This shaft-mounted brake disc structure Simple, easy to design parts, but because of the built-in centering ring structure of this structure, the difficulty of assembly is increased, and the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/12
CPCF16D65/123F16D2065/1396F16D2065/1348F16D65/12
Inventor 金文伟方明刚王常川冯昆张海锋
Owner CRRC CHANGZHOU TECH MARK IND CO LTD
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