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Composite carbon fiber oil cylinder

A composite carbon fiber and oil cylinder technology, which is applied in the field of hydraulic cylinders, can solve the problems of dimensional accuracy and roughness not meeting the design requirements, weak connection strength, and inability to withstand high pressure, etc., achieving obvious weight reduction effects, increasing density, and sealing. Good results

Active Publication Date: 2016-10-12
CHANGZHI QINGHUA MACHINERY FACTORY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The original technology is a carbon fiber cylinder without lining. In the process of composite carbon fiber winding, the control of the deformation of the inner hole of the cylinder and the dimensional accuracy and roughness of the inner hole after winding cannot meet the design requirements, and cannot withstand high pressure; when After the metal lining is added to the inner hole of the carbon fiber cylinder, when the cylinder is under high pressure, the expansion coefficients of the metal lining and the non-metallic carbon fiber cylinder are inconsistent, which may easily cause the metal lining to peel off from the carbon fiber cylinder, so the manufacturing meets the design requirements and high pressure use The composite carbon fiber cylinder is a difficult problem
[0003] The advantages of composite carbon fiber are light weight, non-magnetic, non-corrosive and non-expandable. The disadvantage of composite carbon fiber is that it has no weldability and weak connection strength. How to avoid oil port winding and welding of connection parts has become another problem in the design of carbon fiber cylinders.

Method used

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  • Composite carbon fiber oil cylinder

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Experimental program
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Effect test

Embodiment 1

[0021] Such as figure 1 As shown, the composite carbon fiber oil cylinder includes a cylinder bottom 1, a piston 4, a piston rod assembly 6, a metal-free cylinder barrel 5 and a cylinder head 11, and the joint between the cylinder bottom 1 and the cylinder barrel 5 is provided with a static seal at the bottom of the cylinder 2. The cylinder head 11 is sequentially provided with a dustproof ring 10, a guide belt 8, and a static seal 7 of the cylinder head from the outside to the inside, and the dustproof ring 10 and the guide belt 8 are arranged between the piston rod assembly 6 and the cylinder head 11. The static cover seal 7 is arranged between the cylinder head 11 and the cylinder barrel 5, a piston rod sealing ring 9 is also arranged between the piston rod assembly 6 and the cylinder head 11, and the piston 4 is provided with a piston sealing ring 3;

[0022] The cylinder barrel 5 is wound from composite carbon fiber and nanomaterials, and both ends of the cylinder head 5 ...

Embodiment 2

[0029] Such as figure 1 As shown, the composite carbon fiber oil cylinder includes a cylinder bottom 1, a piston 4, a piston rod assembly 6, a metal-free cylinder barrel 5 and a cylinder head 11, and the joint between the cylinder bottom 1 and the cylinder barrel 5 is provided with a bottom static seal 2. The cylinder head 11 is sequentially provided with a dustproof ring 10, a guide belt 8, and a static seal 7 of the cylinder head from the outside to the inside, and the dustproof ring 10 and the guide belt 8 are arranged between the piston rod assembly 6 and the cylinder head 11. The static cover seal 7 is arranged between the cylinder head 11 and the cylinder barrel 5, a piston rod sealing ring 9 is also arranged between the piston rod assembly 6 and the cylinder head 11, and the piston 4 is provided with a piston sealing ring 3;

[0030] The cylinder barrel 5 is wound from composite carbon fiber and nanomaterials, and both ends of the cylinder head 5 are provided with threa...

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Abstract

The invention provides a composite carbon fiber oil cylinder, belongs to the technical field of hydraulic cylinders, and aims to provide a carbon fiber oil cylinder which meets the design requirement on inner bore precision, geometric tolerance and degree of finish of a cylinder barrel and works stably under high pressure. According to the technical scheme, the cylinder barrel is formed by winding composite carbon fibers and nano materials; threads which are formed by winding composite carbon fibers and nano materials are respectively arranged at two ends of a cylinder cover; threads are also machined at connecting ends of a cylinder bottom, the cylinder cover and the cylinder barrel; a piston rod of a piston rod assembly is a hollow tube; an oil cylinder reverse cavity inlet is formed in the piston rod; and an oil cylinder forward cavity inlet is formed in the cylinder bottom. The invention is applied to the carbon fiber oil cylinder.

Description

technical field [0001] A composite carbon fiber oil cylinder belongs to the technical field of hydraulic oil cylinders. Background technique [0002] Lightweight design is a development direction of hydraulic cylinders. The most fundamental advantage of composite carbon fiber cylinders is that they greatly reduce the weight of components and enhance their load performance. The original technology is a carbon fiber cylinder without lining. In the process of composite carbon fiber winding, the control of the deformation of the inner hole of the cylinder and the dimensional accuracy and roughness of the inner hole after winding cannot meet the design requirements, and cannot withstand high pressure; when After the metal lining is added to the inner hole of the carbon fiber cylinder, when the cylinder is under high pressure, the expansion coefficients of the metal lining and the non-metallic carbon fiber cylinder are inconsistent, which may easily cause the metal lining to peel ...

Claims

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Application Information

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IPC IPC(8): F15B15/14F16J7/00F16J1/00
CPCF15B15/1423F15B15/1428F15B15/1438F15B15/1447F15B15/1452F15B15/1457F15B15/1461F15B2215/30F15B2215/305
Inventor 张月红陈延伟王晋力刘民东朱志强苏川宁韩晓马雷鹏韩广智
Owner CHANGZHI QINGHUA MACHINERY FACTORY
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