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Hydraulic oil cylinder

A technology of hydraulic oil cylinder and cylinder barrel, applied in the field of hydraulic oil cylinder, can solve the problems of reducing the sealing performance of the sealing ring, and achieve the effect of improving the sealing performance and reducing the possibility of damage

Active Publication Date: 2021-04-16
江苏正峰液压科技有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In order to improve the problem that the sealing ring is worn and the sealing performance is reduced, the application provides a hydraulic cylinder

Method used

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  • Hydraulic oil cylinder
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Embodiment Construction

[0027] The following is attached Figure 1-3 The application is described in further detail.

[0028] The embodiment of the present application discloses a hydraulic oil cylinder. refer to figure 1 The hydraulic cylinder includes a cylinder 1 and a piston rod 3. The piston rod 3 includes a rod body 31 and a rod head 32 which are bolted to each other.

[0029] refer to figure 1 and figure 2 , the piston rod 3 is provided with a piston 2 and an air regulating assembly, and the piston 2 is connected to the piston rod 3 . The gas regulating assembly includes an accommodation chamber 311 provided on the inner wall of the rod body 31 away from the end of the piston 2, a drive motor 6 bolted in the accommodation chamber 311, a drive screw 7 coaxial with the output shaft of the drive motor 6 and fixedly connected, The compressed air column 8 is sleeved on the transmission screw rod 7 and threadedly connected with it.

[0030] refer to figure 2 and image 3 , The outer wall o...

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Abstract

The invention relates to the field of hydraulic elements, in particular to a hydraulic oil cylinder. The hydraulic oil cylinder comprises a cylinder barrel, a piston and a piston rod, a sealing cavity is annularly formed in the outer side wall of the piston, an elastic sealing air bag is arranged in the sealing cavity, the piston rod is hollow, a vent hole is formed in the piston, a vent pipe is connected into the vent hole, one end of the vent pipe is located in the cavity of the piston rod, the other end communicates with the elastic sealing air bag, and an air adjusting assembly used for inflating or deflating the elastic sealing air bag is arranged in the piston rod. The hydraulic oil cylinder has the advantage that the sealing performance between the piston and the inner wall of the cylinder barrel is improved.

Description

technical field [0001] The present application relates to the field of hydraulic components, in particular to a hydraulic oil cylinder. Background technique [0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has the advantages of simple structure and reliable operation, so it is widely used in various mechanical hydraulic systems. The hydraulic cylinder is basically composed of cylinder barrel and cylinder head, piston and piston rod, sealing device, buffer device and exhaust device. [0003] The piston is generally equipped with a sealing ring that is close to the inner wall of the cylinder to prevent oil leakage. However, when the piston moves in the cylinder, there will be friction between the sealing ring and the inner wall of the cylinder. If things go on like this, the sealing ring may There will be wear, resulting in a reduction in the sealing performance between t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F15B19/00F15B21/08
Inventor 杨丽华王宏盈徐淼
Owner 江苏正峰液压科技有限公司
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