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Double-acting piston type hydraulic cylinder

A double-acting piston and hydraulic cylinder technology, which is applied in the field of hydraulic equipment, can solve the problems of processing and assembly difficulties of double-acting piston hydraulic cylinders, and achieve the effects of convenient structural processing, compact structure, and strong structural stability

Inactive Publication Date: 2015-11-25
LIUZHOU SHUANGJI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a double-acting piston hydraulic cylinder, which can solve the problem of difficult processing and assembly of the double-acting piston hydraulic cylinder

Method used

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0014] figure 1 It is a structural schematic diagram of a double-acting piston hydraulic cylinder in the prior art, including a cylinder 9 and a piston rod 10. On the upper part of the cylinder 9, a connecting guide sleeve 1 is arranged between the piston rod 10 and the cylinder 9. The entire connection The connection between the guide sleeve 1 and the cylinder 9 adopts threaded connection, the dustproof ring 3 is arranged between the top of the connecting guide sleeve 1 and the piston rod 10, and the sealing ring I6 and the guide belt 8 are arranged between the connecting guide sleeve 1 and the piston rod 10 ; There is a seal ring II7 between the connecting guide sleeve 1 and the inner wall of the cylinder barrel 9; this threaded connection has low strength, which is easy to cause loosening, and is also easy to scratch the seal, resulting in internal leakage of t...

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Abstract

The invention discloses a double-acting piston type hydraulic cylinder and relates to the technical field of hydraulic instruments. The double-acting piston type hydraulic cylinder comprises a cylinder barrel and a piston rod. A piston rod guide sleeve is arranged between the inner wall of the cylinder barrel and the piston rod. A sealing ring I and a guide belt are arranged between the piston rod guide sleeve and the piston rod. A sealing ring II is arranged between the piston rod guide sleeve and the inner wall of the cylinder barrel. The piston rod guide sleeve is fixedly connected with an end cover arranged at the upper portion of the cylinder barrel through a bolt. A spring steel cable baffle ring is arranged between the piston rod guide sleeve and the cylinder barrel. A dustproof ring is arranged between the end cover and the piston rod. The sealing ring II is an O-shaped sealing ring. The problem that a double-acting piston type hydraulic cylinder is difficult to machine and assemble can be solved through the double-acting piston type hydraulic cylinder.

Description

technical field [0001] The invention relates to the technical field of hydraulic equipment, in particular to a piston type hydraulic cylinder. Background technique [0002] Among various types of double-acting hydraulic cylinders, there is one such as figure 1 The piston-type hydraulic cylinder shown includes a cylinder 9 and a piston rod 10. On the upper part of the cylinder 9, a connecting guide sleeve 1 is arranged between the piston rod 10 and the cylinder 9. The connection between the connecting guide sleeve 1 and the cylinder 9 adopts Threaded or welded connection, because the wall of the cylinder 9 is relatively thin, the threaded connection between the guide sleeve 1 and the cylinder 9 has low strength, which is easy to cause loosening, and it is also easy to scratch the seal and cause internal leakage of the oil cylinder. If the connecting guide sleeve 1 and the cylinder barrel 9 are connected by welding, due to the welding stress, the deformation is large, easy to...

Claims

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Application Information

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IPC IPC(8): F15B15/14F15B15/20
CPCF15B15/1428F15B15/1433F15B15/1457F15B15/20
Inventor 李桂成
Owner LIUZHOU SHUANGJI MACHINERY
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