CN203230638U - Concrete pumping cylinder buffering slow-release hydraulic system with air bag energy accumulator - Google Patents
Concrete pumping cylinder buffering slow-release hydraulic system with air bag energy accumulator Download PDFInfo
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- CN203230638U CN203230638U CN 201320153975 CN201320153975U CN203230638U CN 203230638 U CN203230638 U CN 203230638U CN 201320153975 CN201320153975 CN 201320153975 CN 201320153975 U CN201320153975 U CN 201320153975U CN 203230638 U CN203230638 U CN 203230638U
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- air bag
- energy accumulator
- oil
- pressure
- bag energy
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Abstract
A concrete pumping cylinder buffering slow-release hydraulic system with an air bag energy accumulator is formed by combination of the air bag energy accumulator (1), a pumping hydraulic oil cylinder (2), a reversing valve (3) and a one-way throttle valve (4). The concrete pumping cylinder buffering slow-release hydraulic system is characterized in that the air bag energy accumulator (1) is in parallel connection with a pressure oil inlet oil line of the reversing valve (3), the one-way throttle valve (4) is in series connection with a connecting oil line of the reversing valve (3) and the air bag energy accumulator (1), the one-way throttle valve is a one-way valve when oil is fed, the one-way throttle valve is a throttle valve when the oil is discharged, and the air bag energy accumulator (1) is filled with inert gas with pressure slightly higher than working pressure of the pumping hydraulic oil cylinder (2). The working principle of the concrete pumping cylinder buffering slow-release hydraulic system is that when the pumping hydraulic oil cylinder (2) starts to accelerate at an initial position or stops accelerating at a termination position, redundant flow of a main hydraulic system can be led into the air bag energy accumulator (1), and pressure impact is reduced; along with lowering of the impact pressure in the system, pressure oil led into the air bag energy accumulator (1) is gradually discharged into the system by compressed gas so as to do work, energy is saved, and possible impact to the oil cylinder caused by flow is relieved.
Description
One, technical field:
The present invention relates to a kind of concrete pumping cylinder buffering sustained-release liquid pressing system with the air bag accumulator.
Two, background technique:
Along with the penetration and promotion of Chinese commodity concrete and mandatory employing, the popularization and application of various concrete pumping equipments.
In all kinds of concrete pumping equipments, the startup impact of concrete pumping hydraulic jack and reversing impact have brought very big hydraulic shock to main frame, have caused vibrations and the noise of main frame; 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.
The structural strength of the shock damage main frame that hydraulic shock causes, it is especially harmful for the concrete mixer of longer elastic arm shelf structure; Noise then destroys environment and makes operator's more fatiguability.
Produce the reason that this impact has its big quality load high-acceleration starting and commutation, the reason of each equipment cooperation of main frame is arranged, also have 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.
The startup impact of concrete pumping hydraulic jack and reversing impact have seriously damaged concrete pump master hydraulic-pressure pump working life, make its frequency of maintenance reach more than 3 times every year.
The dynamic load that the startup impact of concrete pumping hydraulic jack and reversing impact cause has seriously influenced the light-weighted process of jib of concrete pump.
Three, summary of the invention:
Purpose of the present invention will be developed a kind of excellent performance exactly, the concrete pump simple in structure energy-conservation buffer solution pressing system of hydraulic pressure pumping oil cylinder.
A kind of concrete pumping cylinder buffering sustained-release liquid pressing system with the air bag accumulator of the present invention is combined by air bag accumulator 1, pumps hydraulic oil cylinder 2, selector valve 3 and one-way throttle valve 4; It is characterized in that: air bag accumulator 1 is connected in parallel on the pressure oil oil-feed oil circuit of selector valve 3; One-way throttle valve 4 is connected in being connected on the oil circuit of air bag accumulator 1 and selector valve 3, and its oil-feed is one-way valve, and fuel-displaced is throttle valve; Pour the inert gas of a little higher than pumps hydraulic oil cylinder 2 working pressures in the air bag accumulator 1.Its working principle is: when pumps hydraulic oil cylinder 2 when the starting of initial bit and stop bit is accelerated or is stopped slowing down, the unnecessary flow of main hydraulic system can be imported into air bag accumulator 1 under a little higher than pumps hydraulic oil cylinder 2 working pressure situations, reduce compression shock; Rather than under the control of main system relief valve, overflow; Along with surge pressure in the system descends, the pressure oil that is imported into air bag accumulator 1 can progressively enter system's acting by compressed gas again, and having saved energy and slowed down this flow may be to the impact of oil cylinder.
Four, description of drawings:
Accompanying drawing 1 is hydraulic system principle figure of the present invention.
Five, embodiment:
The specific embodiment of the present invention is:: when pumps hydraulic oil cylinder 2 when the starting of initial bit and stop bit is accelerated or is stopped slowing down, the unnecessary flow of main hydraulic system can be imported into air bag accumulator 1 under a little higher than pumps hydraulic oil cylinder 2 working pressure situations, reduce compression shock; Along with surge pressure in the system descends, the pressure oil that is imported into air bag accumulator 1 can progressively enter system's acting by compressed gas again, and having saved energy and slowed down this flow may be to the impact of pumps hydraulic oil cylinder 2.
Claims (1)
1. the concrete pumping cylinder buffering sustained-release liquid pressing system with the air bag accumulator is combined by air bag accumulator (1), pumps hydraulic oil cylinder (2), selector valve (3) and one-way throttle valve (4); It is characterized in that: air bag accumulator (1) is connected in parallel on the pressure oil oil-feed oil circuit of selector valve (3); One-way throttle valve (4) is connected in being connected on the oil circuit of air bag accumulator (1) and selector valve (3), and its oil-feed is one-way valve, and fuel-displaced is throttle valve; Pour the inert gas of a little higher than pumps hydraulic oil cylinder (2) working pressure in the air bag accumulator (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320153975 CN203230638U (en) | 2013-04-01 | 2013-04-01 | Concrete pumping cylinder buffering slow-release hydraulic system with air bag energy accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320153975 CN203230638U (en) | 2013-04-01 | 2013-04-01 | Concrete pumping cylinder buffering slow-release hydraulic system with air bag energy accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230638U true CN203230638U (en) | 2013-10-09 |
Family
ID=49286766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320153975 Expired - Fee Related CN203230638U (en) | 2013-04-01 | 2013-04-01 | Concrete pumping cylinder buffering slow-release hydraulic system with air bag energy accumulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925490A (en) * | 2019-11-29 | 2020-03-27 | 海洋石油工程股份有限公司 | Submarine pipeline recovery tool control system and control method thereof |
-
2013
- 2013-04-01 CN CN 201320153975 patent/CN203230638U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925490A (en) * | 2019-11-29 | 2020-03-27 | 海洋石油工程股份有限公司 | Submarine pipeline recovery tool control system and control method thereof |
| CN110925490B (en) * | 2019-11-29 | 2021-11-02 | 海洋石油工程股份有限公司 | Submarine pipeline recovery tool control system and control method thereof |
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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 |