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Single-acting rapid-pressurizing hydraulic cylinder

A pressurized hydraulic cylinder, single-acting technology, applied in the direction of fluid pressure actuating devices, etc.

Inactive Publication Date: 2012-05-30
宜昌市东方印刷机械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a single-acting fast pressurized hydraulic cylinder for the defects of the above-mentioned prior art, which overcomes the problems of ensuring coaxiality and end surface run-out in piston processing, and has a simple structure and is easy to process

Method used

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  • Single-acting rapid-pressurizing hydraulic cylinder
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  • Single-acting rapid-pressurizing hydraulic cylinder

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings and examples.

[0011] As shown in the figure, a single-acting rapid pressurization hydraulic cylinder includes a large cylinder liner 1, a large piston 2, a small cylinder liner 3, a small piston 4, and a cylinder bottom cover 5. The large cylinder liner 1 and the cylinder bottom cover 5 are fixedly connected , the large piston 2 is slidingly connected with the large cylinder liner 1, the small cylinder liner 3 is fixedly connected with the cylinder bottom cover 5, the small piston 4 is slidingly connected with the small cylinder liner 3, and the small piston 4 is connected with the small cylinder liner 3 and the cylinder bottom cover 5 to form a small Oil cavity 7, the large piston 2, the large cylinder liner 1, the small cylinder liner 3 and the cylinder bottom cover 5 form the large oil cavity 6, the valve core 13, the top sleeve 14, the spring seat 17, the spring 15 a...

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Abstract

The invention discloses a single-acting rapid-pressurizing hydraulic cylinder, comprising a large cylinder sleeve, a large piston, a small cylinder sleeve, a small piston and a cylinder bottom head; wherein the large cylinder sleeve is coupled with the cylinder bottom head in an integrating way, the large piston is coupled with the large cylinder sleeve in a sliding way, the small cylinder sleeveis coupled with the cylinder bottom head in the integrating way, the small piston is coupled with the small cylinder sleeve in the sliding way, the small piston forms a small oil chamber with the small cylinder sleeve and the cylinder bottom head, the large piston forms a large oil chamber with the large cylinder sleeve, the small cylinder sleeve and the cylinder bottom head, the small oil chamber is communicated with a hydraulic change-over valve oil inlet, a control oil inlet and a magnetic exchange valve oil outlet, and the large oil chamber is connected with a hydraulic change-over valve oil outlet. The invention adopts the small piston and the small cylinder sleeve to substitute the piston rod in the prior art and changes oil-taking direction, skilfully overcomes the problem that coaxiality and end face runout are required to be ensured in piston processing, reduces processing difficulty of cylinder, has simple structure and good workability and improves production efficiency.

Description

technical field [0001] The invention relates to an improvement of a hydraulic cylinder, in particular to a single-acting fast-boosting hydraulic cylinder. Background technique [0002] The State Intellectual Property Office has disclosed a sequential composite oil cylinder (patent number ZL200620078682.9). The cylinder has a complex structure and adopts a flanged piston rod. In actual use, it is necessary to ensure the coaxiality of the outer diameter of the piston rod and the inner hole. degree and end face runout, which cause great difficulty in processing. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a single-acting fast pressurizing hydraulic cylinder in view of the above-mentioned defects of the prior art, which overcomes the problems of ensuring the coaxiality and end face runout in the process of piston processing, and has a simple structure and easy processing. [0004] In order to achieve the above purpose, the technical sc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/16
Inventor 黄金平
Owner 宜昌市东方印刷机械有限责任公司
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