CN203230660U - Gas chamber buffering slow release cavity arranged on oil cylinder piston rod - Google Patents
Gas chamber buffering slow release cavity arranged on oil cylinder piston rod Download PDFInfo
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- CN203230660U CN203230660U CN 201320156869 CN201320156869U CN203230660U CN 203230660 U CN203230660 U CN 203230660U CN 201320156869 CN201320156869 CN 201320156869 CN 201320156869 U CN201320156869 U CN 201320156869U CN 203230660 U CN203230660 U CN 203230660U
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- oil cylinder
- piston rod
- cavity
- diaphragm
- slow release
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Abstract
A gas chamber buffering slow release cavity arranged on an oil cylinder piston rod is structurally composed of a cylinder barrel 1, a screw plug 2, an oil cylinder piston 3, a diaphragm 4, the piston rod 5, an inflating check valve 6 and a check throttle valve 7. The gas chamber buffering slow release cavity is characterized in that a step blind hole is formed in the left end of the piston rod 5, a large hole is a threaded hole, the screw plug 2 presses the diaphragm 4 on the end face where the small blind hole and the large threaded hole intersect, and the diaphragm 4 and the small blind hole form an airtight cavity. The cavity is fully inflated with inert gas through the inflating check valve 6, the pressure of the inert gas is slightly higher than the oil cylinder working pressure, and the left end of the diaphragm 4 is communicated with a rodless cavity of an oil cylinder through the check throttle valve 7 on the screw plug 2. The gas chamber buffering slow release cavity arranged on the oil cylinder piston rod is equivalent to an air bag slow release energy storage device arranged on the piston rod 5. When the oil cylinder is started and the pressure of redundant flow is higher than the gas pressure in the cavity at the right end of the diaphragm 4, the redundant flow pushes the diaphragm 4 and enters the cavity between the diaphragm 4 and the screw plug 2 in a split mode, and starting pressure impact of the oil cylinder is relieved.
Description
One, technical field:
The present invention relates to a kind of air chamber buffering slowly-releasing cavity volume that is arranged on the oil cylinder piston bar.
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 buffering slowly-releasing cavity volume that is arranged on the oil cylinder piston bar, and its structure is combined by cylinder barrel 1, plug screw 2, oil cylinder piston 3, barrier film 4, piston rod 5, inflation one-way valve 6 and one-way throttle valve 7; It is characterized in that: the left end at piston rod 5 is provided with a ladder blind hole, and macropore is interior threaded hole, plug screw 2 with barrier film 4 be pressed on that small blind hole and major thread hole intersect end face on, make barrier film 4 and small blind hole form an airtight cavity volume; Be full of the inert gas of a little higher than oil cylinder working pressure in this cavity volume by inflation one-way valve 6, the left end of barrier film 4 is connected with the rodless cavity of oil cylinder by the one-way throttle valve 7 on the plug screw 2; The present invention is equivalent to be provided with an air sac type slowly-releasing accumulator at piston rod 5.
The present invention is in the start-up course of oil cylinder, the speed of oil cylinder is by static speedup, unnecessary flow will inevitably make the pressure in the oil cylinder rodless cavity press rising rapidly, gas pressure in its pressure is higher than barrier film 4 right-hand member cavity volumes, unnecessary flow can promote barrier film 4 further compressed inert, shunting enters the cavity volume between barrier film 4 and the plug screw 2, and the starting of alleviating oil cylinder is impacted; And when the surge pressure in the oil cylinder rodless cavity reduces along with the speed of oil cylinder increases, the former fluid that enters barrier film 4 left end cavity volumes can progressively flow back to rodless cavity and acting under the effect of compressed inert gas, the flow-reversing impingement when having saved energy and having prevented this segment fluid flow backflow.
This structure is very resultful because the dynamic load of the jib support hydraulic pressure oil cylinder that jib elasticity causes is protected and kept the former fixed position of jib especially for long-armed equipment of concrete mixer class at work.
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, the speed of oil cylinder is by static speedup, unnecessary flow will inevitably make the pressure in the oil cylinder rodless cavity press rising rapidly, gas pressure in its pressure is higher than barrier film 4 right-hand member cavity volumes, unnecessary flow can promote barrier film 4 further compressed inert, shunting enters the cavity volume between barrier film 3 and the plug screw 2, and the starting of alleviating oil cylinder is impacted; And when the surge pressure in the oil cylinder rodless cavity reduces along with the speed of oil cylinder increases, the former fluid that enters barrier film 4 left end cavity volumes can progressively flow back to rodless cavity and acting under the effect of compressed inert gas, the flow-reversing impingement when having saved energy and having prevented this segment fluid flow backflow.
Claims (1)
1. an air chamber that is arranged on the oil cylinder piston bar cushions the slowly-releasing cavity volume, and its structure is combined by cylinder barrel (1), plug screw (2), oil cylinder piston (3), barrier film (4), piston rod (5), inflation one-way valve (6) and one-way throttle valve (7); It is characterized in that: the left end at piston rod (5) is provided with a ladder blind hole, and macropore is interior threaded hole, plug screw (2) with barrier film (4) be pressed on that small blind hole and major thread hole intersect end face on, make barrier film (4) and small blind hole form an airtight cavity volume; Be full of the inert gas of a little higher than oil cylinder working pressure in this cavity volume by inflation one-way valve (6); The left end of barrier film (4) is connected with the rodless cavity of oil cylinder by the one-way throttle valve (7) on the plug screw (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156869 CN203230660U (en) | 2013-04-01 | 2013-04-01 | Gas chamber buffering slow release cavity arranged on oil cylinder piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156869 CN203230660U (en) | 2013-04-01 | 2013-04-01 | Gas chamber buffering slow release cavity arranged on oil cylinder piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230660U true CN203230660U (en) | 2013-10-09 |
Family
ID=49286788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320156869 Expired - Fee Related CN203230660U (en) | 2013-04-01 | 2013-04-01 | Gas chamber buffering slow release cavity arranged on oil cylinder piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230660U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676331A (en) * | 2017-10-31 | 2018-02-09 | 重庆维庆液压机械有限公司 | A kind of hydraulic jack for being used to discharge |
| CN116002032A (en) * | 2023-03-23 | 2023-04-25 | 杭州未名信科科技有限公司 | Shock-resistant shipborne transmission system with anti-corrosion control equipment and method |
-
2013
- 2013-04-01 CN CN 201320156869 patent/CN203230660U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676331A (en) * | 2017-10-31 | 2018-02-09 | 重庆维庆液压机械有限公司 | A kind of hydraulic jack for being used to discharge |
| CN116002032A (en) * | 2023-03-23 | 2023-04-25 | 杭州未名信科科技有限公司 | Shock-resistant shipborne transmission system with anti-corrosion control equipment and method |
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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 |