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High precision brakes for variable stroke cylinders

A brake, high-precision technology, applied in the direction of brake types, drum brakes, fluid pressure actuators, etc., can solve problems such as difficult implementation, and achieve the effects of avoiding scratching the airbag, uniform braking force distribution, and high reliability

Active Publication Date: 2016-03-02
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, brakes with a cylinder diameter of 200mm or more are difficult to realize due to the above-mentioned many restrictions.

Method used

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  • High precision brakes for variable stroke cylinders
  • High precision brakes for variable stroke cylinders

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Embodiment Construction

[0026] Below in conjunction with embodiment and accompanying drawing, the present invention will be further described (as figure 1 with 2 ).

[0027] A high-precision brake for a variable stroke cylinder, the brake is mainly composed of a brake cylinder block 2, a cylindrical air bag 3 and a plurality of transmission blocks 5 with fan-shaped cross-sections; the air bag 3 is located in the Inside the cylinder body 2 of the moving cylinder, and close to its inner wall; the multiple transmission blocks 5 are arranged rotationally symmetrically inside the airbag 3 with the center of the airbag 3 as a fixed point (multiple transmission blocks 5 are distributed around the piston rod 1), the The outer side of each transmission block 5 is close to the air bag 3, and the inner side of the transmission block 5 is provided with a brake pad 6 (the side close to the piston rod 1), and a compressed airbag is provided between every two adjacent transmission blocks 5. Spring 3; the brake cy...

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Abstract

The invention relates to a high-precision brake for a variable-stroke cylinder. The brake is especially suitable for a variable-stroke cylinder which is large in piston rod diameter and high in requirements for position precision. The high-precision brake for the variable-stroke cylinder is characterized in that the brake is mainly composed of a brake cylinder body, a cylindrical air bag and a plurality of transmission blocks with fan-shaped cross sections, the air bag is located in the brake cylinder body and is attached to the inner wall of the brake cylinder body, the transmission blocks are symmetrically arranged on the inner side of the air bag in the mode that the transmission blocks rotate with the circle center of the air bag as a fixed point, the outer side of each transmission block is attached to the air bag, brake blocks are arranged inside the transmission blocks, compressed springs are arranged between every two adjacent transmission blocks, an air port used for introducing air into the air bag and discharging air out of the air bag is formed in the brake cylinder body, and an upper flange end cover and a lower flange end cover are arranged at the upper end of the brake cylinder body and at the lower end of the brake cylinder body respectively. The brake is simple in structure, high in precision, and especially suitable for cylinders with diameters larger than 200mm.

Description

technical field [0001] The invention relates to a high-precision brake for a variable-stroke cylinder, and is especially suitable for a variable-stroke cylinder with a large diameter of a piston rod (that is, a large bore) and a high requirement for position accuracy. Background technique [0002] The working medium of the cylinder is compressible, which makes it difficult to accurately stop the cylinder at any position in the stroke, and the positioning accuracy is low. Therefore, in the selection of the cylinder, we usually use the required limit position as the basis for the selection of the cylinder stroke; or the mechanism itself has a limit position, and the limit range of the mechanism is used as the basis for the selection of the cylinder stroke. In the above two cases, there are two working limit positions of the cylinder. [0003] For the situation that the actuator needs to realize multiple working positions, and even any position in the cylinder stroke can be a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/26F16D49/18
Inventor 董义君陶有能刘斌奇张文凤
Owner WISDRI ENG & RES INC LTD
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