Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Empty/full load self-adaptive pressure compensation oil-pneumatic suspension cylinder

A technology of pressure compensation and oil-air suspension, which is applied in the direction of fluid pressure actuation devices, can solve the problems of lack of integration functions, etc., and achieve the effects of increasing stability and reliability, improving technical level, and good damping effect

Inactive Publication Date: 2011-12-07
张宏如
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above existing technologies have their own emphasis on improving the performance of the suspension cylinder as a whole, but lack the integration function

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Empty/full load self-adaptive pressure compensation oil-pneumatic suspension cylinder
  • Empty/full load self-adaptive pressure compensation oil-pneumatic suspension cylinder
  • Empty/full load self-adaptive pressure compensation oil-pneumatic suspension cylinder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention comprises a cylinder head 11, a cylinder barrel 12, a sealing seat ring 13, a piston rod 14, a piston 15, and a stopper 16; three oil chambers, an upper oil chamber 21, a lower oil chamber 22, and an auxiliary oil chamber 23 are arranged in the suspended cylinder. Inside the cylinder 12, the stopper 16 is fixedly connected to the inner wall of the piston rod 14, and the stopper 16 is provided with a damping hole 31 and a one-way valve 32, which communicate with the upper oil chamber 21 and the lower oil chamber 22 to form an upper oil chamber 21 and the cylinder internal damping passage between the lower oil chamber 22; the piston rod 14 is at one end of the lower oil chamber 22, and the piston rod side wall between the piston 15 and the stopper 16 is provided with a damping hole 33 and a one-way valve 34 to communicate with the lower oil chamber. Cavity 22 and auxiliary oil chamber 23 form the internal damping passage between the lower oil chamber ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an empty / full load adaptive pressure compensation type oil-gas suspension cylinder, which comprises a cylinder head, a cylinder barrel, a sealing seat ring, a piston rod, a piston, a stopper, etc.; an upper oil chamber, a lower oil chamber, There are three oil chambers in the auxiliary oil chamber. Inside the cylinder, a damping passage is set between the upper oil chamber and the lower oil chamber, and a damping passage is arranged between the lower oil chamber and the auxiliary oil chamber; a check valve and a The damping hole is connected with the auxiliary oil chamber and the lower oil chamber through the external passage to form the external damping passage of the cylinder; the position of the one-way valve and the damping hole arranged on the cylinder barrel is arranged between the stroke position range of the suspension cylinder from no load to full load of the piston between. The invention enables the suspension cylinder to automatically obtain different damping coefficients when the vehicle is empty and fully loaded, and at the same time, the pressures of the lower oil chamber and the auxiliary oil chamber maintain mutual compensation, reduce or eliminate the negative pressure phenomenon in the system, and increase the work of the suspension cylinder system. Stability and reliability; comprehensively improved the technical level of hydraulic and pneumatic suspension cylinders.

Description

technical field [0001] The invention relates to a suspension cylinder, in particular to an empty / full load self-adaptive pressure compensation type oil-gas suspension cylinder. Background technique [0002] The empty / full load self-adaptive oil-pneumatic suspension cylinder (Patent No. ZL2008 2 0060583.7) of the prior art is to set an inner passage composed of a check valve and a damping hole on the piston rod, and at least one outer passage is provided on the outside of the cylinder; In order to control the purpose of different damping when the vehicle is fully loaded and unloaded, the suspension cylinder has better damping effect no matter when the vehicle is unloaded or fully loaded. And the pressure-compensated oil-gas suspension cylinder of the prior art (application number 201020201923.0 / 201010181770.2; Note: this prior art is the prior application of the applicant) is provided with three oil chambers, one oil chamber and one oil chamber. There is a damping channel be...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F15B15/14F15B15/22
Inventor 张宏如
Owner 张宏如
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com