CN103216497A - Membrane air chamber buffering slow-release cavity arranged in hinged pin shaft - Google Patents
Membrane air chamber buffering slow-release cavity arranged in hinged pin shaft Download PDFInfo
- Publication number
- CN103216497A CN103216497A CN2013101468993A CN201310146899A CN103216497A CN 103216497 A CN103216497 A CN 103216497A CN 2013101468993 A CN2013101468993 A CN 2013101468993A CN 201310146899 A CN201310146899 A CN 201310146899A CN 103216497 A CN103216497 A CN 103216497A
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- barrier film
- cavity
- membrane
- air chamber
- 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.)
- Pending
Links
Images
Landscapes
- Actuator (AREA)
Abstract
A membrane air chamber buffering slow-release cavity arranged in a hinged pin shaft s structurally composed of a cylinder barrel (1), an oil cylinder head (2), the hinged pin shaft (3), a membrane (4), a sealed seat (5), an inflation check valve (6) and a one-way throttle valve (7). The membrane air chamber buffering slow-release cavity is characterized in that the hinged pin shaft (3) is provided with a step blind hole, the membrane (4) is tightly pressed on an intersect section between a large blind hole and a small blind hole by the sealed seat (5), the membrane (4) and an inner hole of the sealed seat (5) form a sealed cavity where inert gas is inflated, pressure of the inert gas is slightly higher than work pressure of a hydraulic oil cylinder, the cavity can serve as a membrane air chamber energy storage, and the cavity at the left end of the membrane (4) is communicated with a rodless cavity of the oil cylinder through the one-way throttle valve (7) on the oil cylinder head (2) and a small hole on the hinged pin shaft (3). In a starting process of the oil cylinder, excess flow can enter the cavity at the left end of the membrane (4) to relieve starting impact of the oil cylinder. When impact pressure in the rodless cavity of the oil cylinder reduces, the fluid can gradually flow back to the rodless cavity to act again. Furthermore, backflow impact is prevented.
Description
One, technical field:
The present invention relates to a kind of barrier film air chamber buffering slowly-releasing cavity volume that is arranged in the hinged bearing pin.
Two, background technique:
Along with China's industrial expansion, hydraulic transmission has been applied on all kinds of heavy machinery equipments widely with control.
Hydraulic jack is a 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 the 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.
Produce the reason that this impact has its band load high-acceleration starting and commutation, the reason of each equipment cooperation of main frame is arranged, also have in the hydraulic system each major control element in the reason of its dynamic response transient process rational Match.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 method of energy-conservation buffering.
The present invention is a kind of barrier film air chamber buffering slowly-releasing cavity volume that is arranged in the hinged bearing pin, and its structure is combined by cylinder barrel 1, oil cylinder head 2, hinged bearing pin 3, barrier film 4, sealing seat 5, inflation one-way valve 6 and one-way throttle valve 7; It is characterized in that: a ladder blind hole is arranged on the hinged bearing pin 3, and barrier film 4 sealed seats 5 are pressed on the crossing section of big small blind hole; Barrier film 4 is formed a sealed volume with the endoporus of sealing seat 5, charges into inert gas by inflation one-way valve 6 in this cavity volume, and the working pressure of a little higher than hydraulic jack of pressure of inert gas makes the suitable barrier film air chamber accumulator of this cavity volume; The left end cavity volume of barrier film 4 is connected with the rodless cavity of oil cylinder by the aperture on one-way throttle valve on the oil cylinder head 27 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 barrier film 4 further compressed inert, enters the left end cavity volume of barrier film 4, alleviates the starting impact of oil cylinder; And when the surge pressure in the oil cylinder rodless cavity reduced, the former fluid that enters barrier film 4 left end cavity volumes can progressively flow back to rodless cavity through one-way throttle valve 7 and do work again under the effect that is compressed gas, saved energy, and had prevented flow-reversing impingement.
This structure is especially for long-armed equipment of concrete pump vehicle, at work because the former fixed position of 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 a 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 barrier film 4 further compressed inert, enters the left end cavity volume of barrier film 4, and the starting of alleviating oil cylinder is impacted; And when the surge pressure in the oil cylinder rodless cavity reduced, the former fluid that enters barrier film 4 left end cavity volumes can progressively flow back to rodless cavity through one-way throttle valve 7 and do work again under the effect that is compressed gas, saved energy, and had prevented flow-reversing impingement.
Claims (1)
1. a barrier film air chamber that is arranged in the hinged bearing pin cushions the slowly-releasing cavity volume, and its structure is combined by cylinder barrel (1), oil cylinder head (2), hinged bearing pin (3), barrier film (4), sealing seat (5), inflation one-way valve (6) and one-way throttle valve (7); It is characterized in that: a ladder blind hole is arranged on the hinged bearing pin (3), and the sealed seat of barrier film (4) (5) is pressed on the crossing section of big small blind hole; The endoporus of barrier film (4) and sealing seat (5) is formed a sealed volume, charges into inert gas by inflating one-way valve (6) in this cavity volume, and the working pressure of a little higher than hydraulic jack of pressure of inert gas makes the suitable barrier film air chamber accumulator of this cavity volume; The left end cavity volume of barrier film (4) is connected with the rodless cavity of oil cylinder by one-way throttle valve (7) on the oil cylinder head (2) and the aperture on 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 further compressed inert of barrier film (4), enters the left end cavity volume of barrier film (4), and the starting of alleviating oil cylinder is impacted; And when the surge pressure in the oil cylinder rodless cavity reduced, the former fluid that enters barrier film (4) left end cavity volume can progressively flow back to rodless cavity through one-way throttle valve (7) and do work again under the effect that is compressed gas, saved energy, and had prevented flow-reversing impingement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101468993A CN103216497A (en) | 2013-04-25 | 2013-04-25 | Membrane air chamber buffering slow-release cavity arranged in hinged pin shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101468993A CN103216497A (en) | 2013-04-25 | 2013-04-25 | Membrane air chamber buffering slow-release cavity arranged in hinged pin shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103216497A true CN103216497A (en) | 2013-07-24 |
Family
ID=48814565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101468993A Pending CN103216497A (en) | 2013-04-25 | 2013-04-25 | Membrane air chamber buffering slow-release cavity arranged in hinged pin shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103216497A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB582592A (en) * | 1944-06-29 | 1946-11-21 | Adel Prec Products Corp | Temperature compensating system for hydraulic installations |
| GB1234148A (en) * | 1969-11-24 | 1971-06-03 | ||
| JPS5673206A (en) * | 1979-11-19 | 1981-06-17 | Shiyoukuu:Kk | Pneumatic cylinder equipped with shock absorber |
| DE19812621A1 (en) * | 1998-03-23 | 1999-09-30 | Schloemann Siemag Ag | Hydraulic damper for length cutting assembly limits peak pressure |
| US20020074538A1 (en) * | 2000-12-19 | 2002-06-20 | Xuanzhe Hu | Hydraulic jack and a hydraulic circuit for such a hydraulic jack |
| CN201166022Y (en) * | 2008-02-27 | 2008-12-17 | 长沙中联重工科技发展股份有限公司 | Hydraulic pressure accumulator oil cylinder for crane |
| DE102007050350A1 (en) * | 2007-09-21 | 2009-04-02 | Thomas Sauer | Double-acting hydraulic cylinder for use as hydraulically impinged linear motor in e.g. hydraulic excavator, has return stroke chamber and pre-stroke chambers enclosed to each other, where one of prestroke chambers is filled with pressure |
| CN201377479Y (en) * | 2009-04-15 | 2010-01-06 | 湘潭高工科技有限公司 | Hydraulic cylinder buffer |
| CN101846115A (en) * | 2009-03-26 | 2010-09-29 | 江苏朝阳液压机械集团有限公司 | Floating buffer device of oil cylinder of hydraulic headstock gear |
-
2013
- 2013-04-25 CN CN2013101468993A patent/CN103216497A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB582592A (en) * | 1944-06-29 | 1946-11-21 | Adel Prec Products Corp | Temperature compensating system for hydraulic installations |
| GB1234148A (en) * | 1969-11-24 | 1971-06-03 | ||
| JPS5673206A (en) * | 1979-11-19 | 1981-06-17 | Shiyoukuu:Kk | Pneumatic cylinder equipped with shock absorber |
| DE19812621A1 (en) * | 1998-03-23 | 1999-09-30 | Schloemann Siemag Ag | Hydraulic damper for length cutting assembly limits peak pressure |
| US20020074538A1 (en) * | 2000-12-19 | 2002-06-20 | Xuanzhe Hu | Hydraulic jack and a hydraulic circuit for such a hydraulic jack |
| DE102007050350A1 (en) * | 2007-09-21 | 2009-04-02 | Thomas Sauer | Double-acting hydraulic cylinder for use as hydraulically impinged linear motor in e.g. hydraulic excavator, has return stroke chamber and pre-stroke chambers enclosed to each other, where one of prestroke chambers is filled with pressure |
| CN201166022Y (en) * | 2008-02-27 | 2008-12-17 | 长沙中联重工科技发展股份有限公司 | Hydraulic pressure accumulator oil cylinder for crane |
| CN101846115A (en) * | 2009-03-26 | 2010-09-29 | 江苏朝阳液压机械集团有限公司 | Floating buffer device of oil cylinder of hydraulic headstock gear |
| CN201377479Y (en) * | 2009-04-15 | 2010-01-06 | 湘潭高工科技有限公司 | Hydraulic cylinder buffer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103244507A (en) | Piston air chamber buffer controlled-release cavity arranged on cylinder piston rod | |
| CN203230660U (en) | Gas chamber buffering slow release cavity arranged on oil cylinder piston rod | |
| CN103216490A (en) | Air bag type buffering slow-release cavity arranged at end of hinged pin shaft | |
| CN203230657U (en) | Gas chamber cushioning chamber arranged on piston rod of hydraulic cylinder | |
| CN103216488A (en) | Air chamber spring buffering slow-release cavity arranged at end of hinged pin shaft | |
| CN203230655U (en) | Mechanical elastic buffering slow release cavity arranged on oil cylinder piston rod | |
| CN103216489A (en) | Membrane air chamber buffering cavity arranged in oil cylinder hinged pin shaft | |
| CN203230659U (en) | Gas chamber cushion and release chamber arranged at end of hinged pin of hydraulic cylinder | |
| CN203230676U (en) | Air chamber and spring combined buffering and sustained-releasing cavity arranged on oil cylinder head | |
| CN103216497A (en) | Membrane air chamber buffering slow-release cavity arranged in hinged pin shaft | |
| 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 | |
| CN203230661U (en) | Gas chamber cushion chamber arranged in hinged pin of hydraulic cylinder | |
| CN203230664U (en) | Gas chamber cushioning chamber arranged at end of hinged pin of hydraulic cylinder | |
| CN203230663U (en) | Gas chamber elastic buffering slow release cavity arranged on oil cylinder head | |
| CN203230666U (en) | Gas chamber elastic buffering cavity arranged on oil cylinder head | |
| CN103216487A (en) | Membrane air chamber buffering cavity arranged in oil cylinder hinged pin shaft | |
| CN103216494A (en) | Air chamber and spring combined buffering slow-release cavity arranged in hinged pin shaft | |
| CN203230658U (en) | Spring cushion and release chamber arranged in at end of hinged pin of hydraulic cylinder | |
| CN103233944A (en) | Air chamber spring combination buffer slow-release accommodating cavity arranged on oil cylinder head | |
| CN203297192U (en) | Pressure maintaining oil cylinder system of holder of horizontal directional drilling machine | |
| CN203230640U (en) | Concrete pumping cylinder buffering hydraulic system with air bag energy accumulator | |
| CN102720731A (en) | Energy-saving system of operating device | |
| CN203230673U (en) | Spring cushion chamber arranged in hinge pin of hydraulic cylinder | |
| CN103244508A (en) | Piston air chamber buffer controlled-release cavity arranged on cylinder piston rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130724 |