CN203230664U - Gas chamber cushioning chamber arranged at end of hinged pin of hydraulic cylinder - Google Patents
Gas chamber cushioning chamber arranged at end of hinged pin of hydraulic cylinder Download PDFInfo
- Publication number
- CN203230664U CN203230664U CN 201320158043 CN201320158043U CN203230664U CN 203230664 U CN203230664 U CN 203230664U CN 201320158043 CN201320158043 CN 201320158043 CN 201320158043 U CN201320158043 U CN 201320158043U CN 203230664 U CN203230664 U CN 203230664U
- Authority
- CN
- China
- Prior art keywords
- piston
- chamber
- hydraulic cylinder
- hinged pin
- oil cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Actuator (AREA)
- Fluid-Damping Devices (AREA)
Abstract
A gas chamber cushioning chamber arranged at the end of a hinged pin of a hydraulic cylinder is composed of a cylinder barrel 1, a hydraulic cylinder head 2, the hinged pin 3, a piston 4, a seal seat 5 and an inflation check valve 6. The gas chamber cushioning chamber is characterized in that the hinged pin 3 is a stepped shaft, a stepped blind hole is formed in the center of the hinged pin 3, the piston 4 is arranged in the large blind hole, the piston 4 and the seal seat 5 form a seal chamber, the chamber is filled with inert gases with the pressure identical with the working pressure of the hydraulic cylinder through the inflation check valve 6, so that the chamber serves as an air accumulator, and a left-end chamber of the piston 4 is communicated with a rodless cavity of the hydraulic cylinder through the screw plug 2 and a small hole in the hinged pin 3. According to the gas chamber cushioning chamber, in the starting process of the hydraulic cylinder, surplus flow can push the piston 4 to further compress the inert gases to enter the left-end chamber of the piston 4; when the impact pressure in the rodless cavity of the hydraulic cylinder is reduced, the flow flows back to the rodless cavity to do work under the action of compressed gases, so that the starting impact on the hydraulic cylinder is relieved, and energy is saved.
Description
One, technical field:
The present invention relates to a kind of air chamber buffer volume that is arranged on the hinged bearing pin of oil cylinder end.
Two, background technique:
Along with China's industrial expansion, hydraulic transmission has been widely used on all kinds of heavy machinery equipments with control.
Hydraulic jack is topmost executive component in the Hydraulic Power Transmission System.Its performance has played very big effect to the performance of main frame.
Along with hydraulics today towards the development of high-pressure trend and speed up, the startup impact of hydraulic jack and reversing impact have brought very big hydraulic shock to main frame, have caused vibrations and the noise of main frame, very easily cause the early stage damage of hydraulic-pressure pump.Hydraulic shock causes the unnecessary consumption of energy, makes the rapid intensification of host hydraulic system, and then has reduced the viscosity of hydraulic work system medium, and the volumetric efficiency of system descends.
Producing this impact has its reason of being with the starting of load high-acceleration and commutation, and the reason of each equipment cooperation of main frame is arranged, and also has the reason that each major control element rationally mates in its dynamic response transient process in the hydraulic system.At these reasons, people have carried out a large amount of research and discussion, yet these and host work character are inherent, make that people want to take effect very little by the effort that this impact and energy consumption are improved or alleviated to more rational coupling.
At present, on all kinds of high-end hydraulic equipments, the smooth starting of hydraulic jack and energy-conservation buffering are one of difficult problems of puzzlement industry.
Three, summary of the invention:
Purpose of the present invention will be developed a kind of excellent performance exactly, and technology is reliable, the smooth starting of the hydraulic jack of energy-saving and noise-reducing and the new structure of energy-conservation buffering.
The present invention is a kind of air chamber buffer volume that is arranged on the hinged bearing pin of oil cylinder end, and its structure is combined by cylinder barrel 1, oil cylinder head 2, hinged bearing pin 3, piston 4, sealing seat 5 and inflation one-way valve 6; It is characterized in that: hinged bearing pin 3 is a multidiameter shaft, and there is a ladder blind hole in its center portion, and piston 4 is contained in the big-diameter blind hole that is mated; Piston 4 is formed a sealed volume with sealing seat 5, has been full of inert gas with hydraulic jack working pressure uniform pressure value by inflation one-way valve 6 in this cavity volume, makes the suitable air accumulator of this cavity volume; The left end cavity volume of piston 4 is connected with the rodless cavity of oil cylinder by the aperture on oil cylinder head 2 and the hinged bearing pin 3.
In the start-up course of oil cylinder, because the speed of oil cylinder has produced hydraulic shock when being in speedup, the unnecessary flow that build-up of pressure impacts can promote piston 4 further compressed inert, enters the left end cavity volume of piston 4, has alleviated compression shock; And when the surge pressure in the oil cylinder rodless cavity reduced, the former fluid that enters piston 4 left end cavity volumes can flow back to rodless cavity under the effect of compressed gas, and forced the pressure oil that will be overflowed from relief valve originally to do work again, had saved energy.
This structure is especially for long-armed equipment of concrete mixer class, at work because the former fixed position of the protection of the dynamic load of the jib support hydraulic pressure oil cylinder that jib elasticity causes and maintenance jib is very resultful.
Four, description of drawings:
Accompanying drawing 1 is structure principle chart of the present invention.
Five, embodiment:
The specific embodiment of the present invention is: in the start-up course of oil cylinder, because the speed of oil cylinder has produced hydraulic shock when being in speedup, the unnecessary flow that build-up of pressure impacts can promote piston 4 further compressed inert, enters the left end cavity volume of piston 4, has alleviated compression shock; And when the surge pressure in the oil cylinder rodless cavity reduced, the former fluid that enters piston 4 left end cavity volumes can flow back to rodless cavity under the effect of compressed gas, and forced the pressure oil that will be overflowed from relief valve originally to do work again, had saved energy.
Claims (1)
1. air chamber buffer volume that is arranged on the hinged bearing pin of oil cylinder end, its structure is combined by cylinder barrel (1), oil cylinder head (2), hinged bearing pin (3), piston (4), sealing seat (5) and inflation one-way valve (6); It is characterized in that: hinged bearing pin (3) is a multidiameter shaft, and there is a ladder blind hole in its center portion, and piston (4) is contained in the big-diameter blind hole that is mated; Piston (4) and sealing seat (5) are formed a sealed volume, have been full of inert gas with hydraulic jack working pressure uniform pressure value by inflating one-way valve (6) in this cavity volume, make the suitable air accumulator of this cavity volume; The left end cavity volume of piston (4) is connected with the rodless cavity of oil cylinder by the aperture on oil cylinder head (2) and the hinged bearing pin (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320158043 CN203230664U (en) | 2013-04-01 | 2013-04-01 | Gas chamber cushioning chamber arranged at end of hinged pin of hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320158043 CN203230664U (en) | 2013-04-01 | 2013-04-01 | Gas chamber cushioning chamber arranged at end of hinged pin of hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230664U true CN203230664U (en) | 2013-10-09 |
Family
ID=49286792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320158043 Expired - Fee Related CN203230664U (en) | 2013-04-01 | 2013-04-01 | Gas chamber cushioning chamber arranged at end of hinged pin of hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230664U (en) |
-
2013
- 2013-04-01 CN CN 201320158043 patent/CN203230664U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103256275A (en) | Quick double-acting hydraulic cylinder | |
| CN103244507A (en) | Piston air chamber buffer controlled-release cavity arranged on cylinder piston rod | |
| CN203230657U (en) | Gas chamber cushioning chamber arranged on piston rod of hydraulic cylinder | |
| CN203230660U (en) | Gas chamber buffering slow release cavity arranged on oil cylinder piston rod | |
| CN203230655U (en) | Mechanical elastic buffering slow release cavity arranged on oil cylinder piston rod | |
| CN103216488A (en) | Air chamber spring buffering slow-release cavity arranged at end of hinged pin shaft | |
| CN203230664U (en) | Gas chamber cushioning chamber arranged at end of hinged pin of hydraulic cylinder | |
| CN203230661U (en) | Gas chamber cushion chamber arranged in hinged pin of hydraulic cylinder | |
| CN103216490A (en) | Air bag type buffering slow-release cavity arranged at end of hinged pin shaft | |
| CN203230659U (en) | Gas chamber cushion and release chamber arranged at end of hinged pin of hydraulic cylinder | |
| CN203230675U (en) | Gas chamber cushion and release chamber arranged in hinged pin of hydraulic cylinder | |
| CN203230639U (en) | Concrete pumping cylinder buffering slow-release hydraulic system with spring energy accumulator | |
| CN203230673U (en) | Spring cushion chamber arranged in hinge pin of hydraulic cylinder | |
| CN203230676U (en) | Air chamber and spring combined buffering and sustained-releasing cavity arranged on oil cylinder head | |
| CN103758914A (en) | Buffering oil cylinder of dynamic compaction machine and installation structure thereof | |
| CN203230662U (en) | Spring cushion chamber arranged at end of hinged pin of hydraulic cylinder | |
| CN103216489A (en) | Membrane air chamber buffering cavity arranged in oil cylinder hinged pin shaft | |
| CN203230658U (en) | Spring cushion and release chamber arranged in at end of hinged pin of hydraulic cylinder | |
| CN203230640U (en) | Concrete pumping cylinder buffering hydraulic system with air bag energy accumulator | |
| CN203230656U (en) | Spring cushion and release chamber arranged in hinged pin of hydraulic cylinder | |
| CN103244508A (en) | Piston air chamber buffer controlled-release cavity arranged on cylinder piston rod | |
| CN203230638U (en) | Concrete pumping cylinder buffering slow-release hydraulic system with air bag energy accumulator | |
| CN203230666U (en) | Gas chamber elastic buffering cavity arranged on oil cylinder head | |
| CN203230672U (en) | Mechanical elastic buffering cavity arranged on oil cylinder piston rod | |
| CN203230663U (en) | Gas chamber elastic buffering slow release cavity arranged on oil cylinder head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20140401 |