CN202441660U - Backpressure loop of bridge synchronous jacking hydraulic system - Google Patents
Backpressure loop of bridge synchronous jacking hydraulic system Download PDFInfo
- Publication number
- CN202441660U CN202441660U CN2012200550648U CN201220055064U CN202441660U CN 202441660 U CN202441660 U CN 202441660U CN 2012200550648 U CN2012200550648 U CN 2012200550648U CN 201220055064 U CN201220055064 U CN 201220055064U CN 202441660 U CN202441660 U CN 202441660U
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- Prior art keywords
- valve
- oil pump
- backpressure
- hydraulic system
- directional control
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- 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
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Abstract
A backpressure loop of a bridge synchronous jacking hydraulic system comprises a single-action lifting jack, a hydraulic control one-way valve, an electromagnetic directional valve, system overflow valves, an adjustable backpressure valve, an oil pump, a filter and an oil tank, wherein the hydraulic control one-way valve is connected with the lower portion of the single-action lifting jack and is communicated with the electromagnetic directional valve, the electromagnetic directional valve is communicated with two system overflow valves which are installed inside the adjustable backpressure valve, the oil pump is connected with lower portions of system overflow valves, and the filter is used for communicating the oil pump with the oil tank. The backpressure loop is not easy to block, can adjust the falling time of a load on the single-action lifting jack and is convenient for human intervention.
Description
Technical field
The utility model relates to bridge synchronization of jacking up equipment, is specially bridge synchronization of jacking up hydraulic system backpressure circuit.
Background technique
In bridge industry; Bridge synchronization of jacking up hydraulic system backpressure circuit is absolutely necessary; But present synchronization of jacking up hydraulic system equipment, no back pressure or backpressure circuit are unreasonable, make easy impact failure of hydraulic system or obstruction; The hydraulic cylinder piston rod run duration can't be adjusted, and brings very big inconvenience to construction.
The model utility content
The technical problem that the utility model solved is to provide bridge synchronization of jacking up hydraulic system backpressure circuit, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solved adopts following technological scheme to realize:
Bridge synchronization of jacking up hydraulic system backpressure circuit; Comprise single-acting jack, Pilot operated check valve, solenoid directional control valve, system's relief valve, adjustable back pressure valve, oil pump, filter cleaner and fuel tank; Said single-acting jack bottom is connected with Pilot operated check valve; Said Pilot operated check valve and solenoid directional control valve are connected, and are being communicated with two system's relief valves on the said solenoid directional control valve, and said adjustable back pressure valve inside is installed with system's relief valve; Said oil pump is connected system relief valve bottom, and said filter cleaner is connected together oil pump and fuel tank.
Beneficial effect
The utility model hydraulic system is difficult for stopping up, and can adjust the fall time of loading on the single-acting jack, and human intervention is convenient.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1; The structural representation of bridge synchronization of jacking up hydraulic system backpressure circuit, bridge synchronization of jacking up hydraulic system backpressure circuit comprises single-acting jack 1, Pilot operated check valve 2, solenoid directional control valve 3, system's relief valve 4, adjustable back pressure valve 5, oil pump 6, filter cleaner 7 and fuel tank 8; Said single-acting jack 1 bottom is connected with Pilot operated check valve 2; Said Pilot operated check valve 2 is connected with solenoid directional control valve 3, is being communicated with two system's relief valves 4 on the said solenoid directional control valve 3, and said adjustable back pressure valve 5 inside are installed with system's relief valve 4; Said oil pump 6 is connected system's relief valve 4 bottoms, and said filter cleaner 7 is connected together oil pump 6 and fuel tank 8.
When the electromagnet in solenoid directional control valve 3 left sides moves, the position work of solenoid directional control valve 3 left side, hydraulic oil is through Pilot operated check valve 2 entering single-acting jack 1 rodless cavity, and single-acting jack 1 piston stretches out; When the electromagnet on solenoid directional control valve 3 right sides moves simultaneously, solenoid directional control valve 3 right position work, the right position work of the solenoid valve in the adjustable back pressure valve 5; The back pressure that system's relief valve 4 in the adjustable back pressure valve 5 provides size to regulate, single-acting this moment jack 1 piston is slowly regained, and protective system is not hit; Regulate the pressure of adjustable back pressure valve 5; Just can adjust the fall time of loading on the single-acting jack 1, and the difficult obstruction of native system, human intervention is convenient.
More than show and described basic principle of the utility model and the advantage of major character and the utility model; The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described, under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications; These variations and improvement all fall in the utility model scope that requires protection, and the utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (1)
1. bridge synchronization of jacking up hydraulic system backpressure circuit; Comprise single-acting jack, Pilot operated check valve, solenoid directional control valve, system's relief valve, adjustable back pressure valve, oil pump, filter cleaner and fuel tank; It is characterized in that said single-acting jack bottom is connected with Pilot operated check valve, said Pilot operated check valve and solenoid directional control valve are connected; Be communicated with two system's relief valves on the said solenoid directional control valve; Said adjustable back pressure valve inside is installed with system's relief valve, and said oil pump is connected system relief valve bottom, and said filter cleaner is connected together oil pump and fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200550648U CN202441660U (en) | 2012-02-21 | 2012-02-21 | Backpressure loop of bridge synchronous jacking hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200550648U CN202441660U (en) | 2012-02-21 | 2012-02-21 | Backpressure loop of bridge synchronous jacking hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441660U true CN202441660U (en) | 2012-09-19 |
Family
ID=46823112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200550648U Expired - Fee Related CN202441660U (en) | 2012-02-21 | 2012-02-21 | Backpressure loop of bridge synchronous jacking hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441660U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265704A (en) * | 2014-09-18 | 2015-01-07 | 芜湖高昌液压机电技术有限公司 | Lifting machine backpressure regulating loop |
| CN104454708A (en) * | 2014-12-31 | 2015-03-25 | 桐庐松亚机械厂 | Oil path circulation system of hydraulic oil cylinder |
| CN107676316A (en) * | 2017-11-07 | 2018-02-09 | 燕山大学 | A kind of braking control system and control method applied to hydraulic open system |
-
2012
- 2012-02-21 CN CN2012200550648U patent/CN202441660U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265704A (en) * | 2014-09-18 | 2015-01-07 | 芜湖高昌液压机电技术有限公司 | Lifting machine backpressure regulating loop |
| CN104454708A (en) * | 2014-12-31 | 2015-03-25 | 桐庐松亚机械厂 | Oil path circulation system of hydraulic oil cylinder |
| CN107676316A (en) * | 2017-11-07 | 2018-02-09 | 燕山大学 | A kind of braking control system and control method applied to hydraulic open system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20160221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |