CN103216494A - Air chamber and spring combined buffering slow-release cavity arranged in hinged pin shaft - Google Patents
Air chamber and spring combined buffering slow-release cavity arranged in hinged pin shaft Download PDFInfo
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- CN103216494A CN103216494A CN201310145564XA CN201310145564A CN103216494A CN 103216494 A CN103216494 A CN 103216494A CN 201310145564X A CN201310145564X A CN 201310145564XA CN 201310145564 A CN201310145564 A CN 201310145564A CN 103216494 A CN103216494 A CN 103216494A
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Abstract
An air chamber and spring combined buffering slow-release cavity arranged in a hinged pin shaft is structurally composed of a cylinder barrel (1), an oil cylinder head (2), the hinged pin shaft (3), a piston (4), a sealed seat (5), an inflation check valve (6), a spring (7) and a one-way throttle valve (8). The air chamber and spring combined buffering slow-release cavity is characterized in that a blind hole is arranged on the hinged pin shaft (3), the piston (4) is installed in the blind hole, the piston (4) and the sealed seat (5) can form a sealed cavity, the spring (7) is installed between the piston (4) and the sealed seat (5), inert gas is inflated into the cavity through the inflation check valve (6), the cavity can serve as an air chamber and spring combined energy storage, and the cavity at the left end of the piston (4) is communicated with a rodless cavity of an oil cylinder through the one-way throttle valve (8) on the oil cylinder head (2) and a small hole on the hinged pins shaft (3). In a starting process of the oil cylinder, excess flow can enter the cavity at the left end of the piston (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 air chamber spring assembly 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 air chamber spring assembly 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, piston 4, sealing seat 5, inflation one-way valve 6, spring 7 and one-way throttle valve 8; It is characterized in that: on the hinged bearing pin 3 blind hole is arranged, piston 4 is contained in this blind hole; Piston 4 is formed a sealed volume with sealing seat 5, spring 7 is contained between piston 4 and the sealing seat 5, charge into inert gas by inflation one-way valve 6 in this cavity volume, the pressure of inert gas produces the pressure identical with the hydraulic jack working pressure together with the pretightening force of spring 7, makes the suitable air chamber spring assembly 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 one-way throttle valve on the oil cylinder head 28 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 and springs 7, enters the left end cavity volume of piston 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 piston 4 left end cavity volumes can progressively flow back to rodless cavity and do work again under the effect that is compressed gas and spring 7, 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 piston 4 further compressed inert and springs 7, enter the left end cavity volume of piston 4, 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 piston 4 left end cavity volumes can progressively flow back to rodless cavity and do work again under the effect that is compressed gas and spring 7, saved energy, and had prevented flow-reversing impingement.
Claims (1)
1. an air chamber spring assembly 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), piston (4), sealing seat (5), inflation one-way valve (6), spring (7) and one-way throttle valve (8); It is characterized in that: hinged bearing pin has a blind hole on (3), and piston (4) is contained in this blind hole; Piston (4) is formed a sealed volume with sealing seat (5), spring (7) is contained between piston (4) and the sealing seat (5), charge into inert gas by inflation one-way valve (6) in this cavity volume, the pressure of inert gas produces the pressure identical with the hydraulic jack working pressure together with the pretightening force of spring (7), makes the suitable air chamber spring assembly accumulator of this cavity volume; The left end cavity volume of piston (4) is connected with the rodless cavity of oil cylinder by one-way throttle valve (8) on the oil cylinder head (2) and the aperture on the hinged bearing pin (3); Its working principle 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 and spring (7), enter the left end cavity volume of piston (4), 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 piston (4) left end cavity volume can progressively flow back to rodless cavity and do work again under the effect that is compressed gas and spring (7), saved energy, and had prevented flow-reversing impingement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310145564XA CN103216494A (en) | 2013-04-25 | 2013-04-25 | Air chamber and spring combined buffering slow-release cavity arranged in hinged pin shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310145564XA CN103216494A (en) | 2013-04-25 | 2013-04-25 | Air chamber and spring combined buffering slow-release cavity arranged in hinged pin shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103216494A true CN103216494A (en) | 2013-07-24 |
Family
ID=48814562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310145564XA Pending CN103216494A (en) | 2013-04-25 | 2013-04-25 | Air chamber and spring combined buffering slow-release cavity arranged in hinged pin shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103216494A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61136005A (en) * | 1984-12-04 | 1986-06-23 | Shoketsu Kinzoku Kogyo Co Ltd | Buffer of cylinder |
| TWM368717U (en) * | 2009-05-12 | 2009-11-11 | Jian-Er Liu | Low pressure balancer |
| KR20110013004A (en) * | 2009-07-31 | 2011-02-09 | 주식회사 에버다임 | Plunger cylinder for converting valve of concrete pump-truck |
| CN102016347A (en) * | 2009-01-23 | 2011-04-13 | 萱场工业株式会社 | Buffer device |
| CN202040133U (en) * | 2011-02-21 | 2011-11-16 | 平高集团有限公司 | Pressure slow increasing device |
-
2013
- 2013-04-25 CN CN201310145564XA patent/CN103216494A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61136005A (en) * | 1984-12-04 | 1986-06-23 | Shoketsu Kinzoku Kogyo Co Ltd | Buffer of cylinder |
| CN102016347A (en) * | 2009-01-23 | 2011-04-13 | 萱场工业株式会社 | Buffer device |
| TWM368717U (en) * | 2009-05-12 | 2009-11-11 | Jian-Er Liu | Low pressure balancer |
| KR20110013004A (en) * | 2009-07-31 | 2011-02-09 | 주식회사 에버다임 | Plunger cylinder for converting valve of concrete pump-truck |
| CN202040133U (en) * | 2011-02-21 | 2011-11-16 | 平高集团有限公司 | Pressure slow increasing device |
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| 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 |