Brake oil cylinder for rail transit and brake clamp unit of brake oil cylinder

A brake cylinder and rail transit technology, which is applied in the field of rail transit vehicle braking systems, can solve the problems that the piston rod cannot be automatically reset, and achieve the effects of easy installation and maintenance, simple and compact structure, and safe braking

Active Publication Date: 2022-03-25
ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims at the problem that the piston rod cannot be automatically reset when the existing brake caliper is in the release state, and provides a piston rod that can automatically reset, and has a simple and compact overall structure, easy installation and maintenance, stable performance, and better braking effect. Brake cylinder and brake caliper unit for rail transit

Method used

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  • Brake oil cylinder for rail transit and brake clamp unit of brake oil cylinder
  • Brake oil cylinder for rail transit and brake clamp unit of brake oil cylinder
  • Brake oil cylinder for rail transit and brake clamp unit of brake oil cylinder

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0032] For the convenience of description, the relative positional relationship of each component, such as: the description of up, down, left, right, etc., is described according to the layout direction of the drawings in the specification, and does not limit the structure of this patent.

[0033] Such as figure 1 - image 3 As shown, an embodiment of the brake caliper unit for rail transit of the present invention includes: 1-oil cylinder, 2-oil cylinder inner cavity, 3-elastic deformation element, 4-brake pad, 5-piston rod, 6-sealing oil Cavity, 7-cylinder head, 8-oil inlet, 9-caliper body, 10-brake disc.

[0034] see figure 1 , in order to ensure reliable braking, the oil cylinder 1 needs to be installed correctly. In this embodiment, the oil cylinder 1 and the caliper body 9 are conne...

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Abstract

The invention discloses a brake oil cylinder for rail transit and a brake clamp unit of the brake oil cylinder. The brake oil cylinder comprises an oil cylinder body (1), an oil inlet (8) is formed in the oil cylinder body, a piston (5-2) is arranged in the brake oil cylinder body, one end of a piston rod (5) of the piston extends out of the oil cylinder body, and an elastic sealing element (3) capable of generating elastic deformation in the axis direction of the oil cylinder body is contained in the oil cylinder body. A sealing oil cavity communicated with the oil inlet is formed in the elastic sealing element; the piston is sleeved with the elastic sealing element, one end of the elastic sealing element is connected with the inner cavity wall of the oil cylinder, and the other end of the elastic sealing element is connected with the piston; the distance between the elastic sealing element and the extending end of the piston rod of the oil cylinder is larger than or equal to the working stroke (X) of the elastic sealing element. According to the invention, a normal gap between the brake disc and the brake pad can be ensured after relieving, virtual attachment of the brake pad and the brake disc is avoided, and grinding particles generated by brake friction can be smoothly discharged.

Description

technical field [0001] The invention relates to a rail transit vehicle braking system, in particular to a rail transit brake oil cylinder and a brake caliper unit thereof. Background technique [0002] With the rapid development of the national economy and the acceleration of urbanization, the people have put forward higher requirements for the safety of rail transit travel. As the final executive device of the braking system, the brake caliper unit must safely and reliably ensure that the vehicle stops within the specified braking distance during emergency braking to ensure driving safety. [0003] The existing hydraulic brake caliper, as shown in Chinese patent CN102943830A, comprises a caliper body, an oil cylinder, and a brake pad. Two oil cylinders are relatively installed on the caliper body, and one end of the piston rod of the two oil cylinders extends out of the cylinder hole respectively. The piston rods of the two oil cylinders press the corresponding brake pads ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/092F16D65/14F16D65/62F16D121/04
CPCF16D65/092F16D65/14F16D65/62F16D2121/04
Inventor 刘德学刘杰李杰吴世应沈铭乾李金花康健王龙泉
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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