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Parking cylinder, parking brake unit, brake caliper unit, braking system and vehicle

A parking cylinder and brake cylinder technology, which is applied in the field of rail transit, can solve the problems of weight and volume, and achieve the effects of small volume, small installation space and light weight

Active Publication Date: 2020-12-01
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the above-mentioned problems of existing parking brake caliper units such as heavy weight and large volume, and provides a parking cylinder with light weight and small volume, a parking brake unit, a brake caliper unit, a braking system and a vehicle , there is no risk of spring breakage causing parking brake failure during parking braking

Method used

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  • Parking cylinder, parking brake unit, brake caliper unit, braking system and vehicle
  • Parking cylinder, parking brake unit, brake caliper unit, braking system and vehicle
  • Parking cylinder, parking brake unit, brake caliper unit, braking system and vehicle

Examples

Experimental program
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Effect test

Embodiment 1

[0045] Embodiment 1: see Figure 3-Figure 5 , the present embodiment provides a parking cylinder, comprising:

[0046] parking cylinder 11;

[0047] The first power transmission mechanism is located in the parking cylinder 11;

[0048] The locking mechanism is located in the parking cylinder 11, and the locking mechanism includes a first locking piece 131 and a second locking piece 132 that match, and the first locking piece 131 is connected to the first force transmission mechanism;

[0049] The relief device is connected with the second locking member 132 .

[0050] continue to see Figures 3 to 5 , the first force transmission mechanism includes a parking lead screw 121 , one end of the parking lead screw 121 is connected to the first locking member 131 , and the other end is connected to the brake piston 22 of the brake cylinder 2 . Specifically, the parking lead screw 121 is screwed to the first locking member 131 through a non-self-locking trapezoidal thread, and the...

Embodiment 2

[0062] Embodiment 2: This embodiment provides a parking brake unit, including a parking cylinder 1 and a brake cylinder 2, the parking cylinder adopts the parking cylinder described in Embodiment 1, and the brake cylinder body of the brake cylinder 2 21 is connected to the parking cylinder 11, and the brake piston 22 of the brake cylinder 2 is connected to the first force transmission mechanism.

[0063] Specifically, in one embodiment, see Figure 9 , the brake cylinder 2 includes:

[0064] A brake cylinder 21, in which two mutually symmetrical support bearings 211 are installed;

[0065]The brake piston 22 is arranged in the brake cylinder 21, and the brake piston 22 is provided with two symmetrically arranged wedges 221;

[0066] The pushing mechanism includes a pushing part 231 and two support bearings 232 symmetrically installed on the pushing part 231, the supporting bearing 232 on the pushing part is symmetrical to the supporting bearing 211 on the brake cylinder 21, ...

Embodiment 3

[0091] Embodiment 3: see Figure 12 , this embodiment provides a parking brake caliper unit, including a parking cylinder 1, a brake cylinder 2 and a brake caliper 3, the parking cylinder adopts the parking cylinder described in Embodiment 1, and the brake cylinder 2 The brake cylinder 21 of the brake cylinder 2 is connected to the parking cylinder 11, the brake piston 22 of the brake cylinder 2 is connected to the first force transmission mechanism, and the brake cylinder 2 is connected to the brake clip through the hinge bolt 4 Clamp 3 connection. Specifically, the parking cylinder 11 and the brake cylinder 21 are connected by screws 5 . The structure of the brake cylinder is the same as that of the brake cylinder described in Embodiment 2, and will not be repeated here.

[0092] It should be noted that the brake cylinder of the parking brake caliper unit in this embodiment is not limited to be suitable for disc brakes, and it is also possible to connect the brake screw wi...

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Abstract

The invention relates to a parking cylinder, a parking brake unit, a brake clamp unit, a brake system and a vehicle. The parking cylinder comprises: a parking cylinder body; a first force transmissionmechanism arranged in the parking cylinder body; a locking mechanism arranged in the parking cylinder body, wherein the locking mechanism comprises a first locking piece and a second locking piece which are matched with each other, and the first locking piece is connected with the first force transmission mechanism; and a relieving device connected with the second locking piece. The parking brakeunit comprises the parking cylinder and a brake cylinder, a brake cylinder body of the brake cylinder is connected with the parking cylinder body, and a brake piston of the brake cylinder is connected with the first force transmission mechanism. The parking cylinder of a light-weight and small-size mechanical locking structure is adopted, so that the longitudinal and vertical sizes of the brake clamp unit are short, the mounting space of the brake clamp unit is reduced, the weight of the brake clamp unit is reduced, and the risk of parking brake failure caused by spring breakage does not exist in the parking brake process.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and relates to rail transit braking technology, in particular to a parking cylinder, a parking braking unit, a brake caliper unit, a braking system and a vehicle. Background technique [0002] The brake caliper unit is the actuator of the rail vehicle braking system, which is used to convert the compressed air pressure into a mechanical thrust and amplify it, and realize the conversion of the kinetic energy of the rail vehicle through the friction between the brake disc and the brake pad. In order to achieve the purpose of speed regulation or parking. For locomotives, bullet trains, high-speed passenger cars, urban rail and other rail transit vehicles that use disc brakes, the brake caliper unit usually includes a brake caliper unit without a parking function and a brake caliper with a parking function. unit (often referred to as a parking brake caliper unit). After the vehicle is parked o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61H13/00B61H13/20B61H11/06F16D65/14F16D121/04F16D121/14F16D125/08F16D125/16F16D125/40
CPCB61H11/06B61H13/00B61H13/20F16D65/14F16D2121/04F16D2121/14F16D2125/08F16D2125/16F16D2125/40
Inventor 徐少亭刁有彬王震孔德鹏宋传云王超恒黄士伟
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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