Static sealing oil cylinder with rodless cavity

A technology of rodless cavity and oil cylinder, which is applied in the direction of fluid pressure actuation device, etc., can solve the problems of oil cylinder leakage and other problems, achieve the effect of strong bearing pressure, reduce self-weight, and avoid leakage oil pollution

Active Publication Date: 2016-05-18
重庆戴文能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A rigid dynamic sealing cavity is formed, although it can bear a large pressure, but the sealing part is worn out due to the reciprocating movement of the piston and fails, resulting in cylinder leakage

Method used

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  • Static sealing oil cylinder with rodless cavity
  • Static sealing oil cylinder with rodless cavity
  • Static sealing oil cylinder with rodless cavity

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Embodiment Construction

[0028] exist figure 1 In the first embodiment, the piston rod (3) is coaxially assembled with the cylinder (2), the piston rod (3) slides axially along the port of the cylinder (2), and the capsule (1) is clamped on the cylinder ( 2) Between the piston rod (3), the two ports of the capsule (1) are connected to the cylinder (2) and the piston rod (3) respectively, and the capsule (1) separates to form the rod cavity of the cylinder in this case ( 5) With the rodless cavity (6), the rod cavity (5) is a dynamic sealing cavity, and the rodless cavity (6) is a static sealing cavity. During the stretching and compression of the cylinder, the capsule (1) is only in contact with the The inner wall of the barrel (2) and the outer wall of the piston rod (3) are folded and bonded together. When the rodless chamber (6) is fed with high-pressure oil or high-pressure gas, the rod chamber (5) discharges oil or gas, and the oil cylinder stretches. figure 2 Is the first embodiment stretched...

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Abstract

The invention relates to a static sealing oil cylinder with a rodless cavity. According to the invention, a capsule (1) is partitioned to form a rod cavity (5) and the rodless cavity (6) of the oil cylinder disclosed by the invention, wherein the rod cavity (5) is a dynamic sealing cavity; the rodless cavity (6) is a static sealing cavity; during stretching and compression processes of the oil cylinder, the capsule (1) only fits with with the inner wall of a cylinder barrel (2) and the outer wall of a piston rod (3) in a rolling manner; when the rodless cavity (6) is charged with high-pressure oil or high-pressure gas, the rod cavity (5) of the oil cylinder discharges outwards the oil or the gas, and the oil cylinder is stretched; and when an external force F on each of the two ends of the oil cylinder is greater than the inner pressure of the rodless cavity (6), the oil cylinder is compressed.

Description

technical field [0001] The invention is a novel oil cylinder or air cylinder, which relates to a static sealing structure adopted by the oil cylinder, which can effectively prevent the oil cylinder from leaking oil and gas. Background technique [0002] At present, the basic structure of known oil cylinders is made up of cylinder body, piston, seal etc. A rigid dynamic sealing cavity is formed, although it can bear a relatively high pressure, but due to the reciprocating movement of the piston, the seal wears out and fails, resulting in oil cylinder leakage. Contents of the invention [0003] The invention provides an oil cylinder. The rodless cavity is a statically sealed cavity, which structurally solves the problems of oil seepage and leakage in the existing oil cylinder. [0004] The technical solution adopted by the present invention to solve these technical problems is: the cylinder, the piston rod and the capsule are connected to form a sealed rodless cavity and a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14
Inventor 周莉珍黎治强王兵
Owner 重庆戴文能源科技有限公司
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