CN202194084U - Synchronous hydraulic jacking system for bridge - Google Patents
Synchronous hydraulic jacking system for bridge Download PDFInfo
- Publication number
- CN202194084U CN202194084U CN2011203243971U CN201120324397U CN202194084U CN 202194084 U CN202194084 U CN 202194084U CN 2011203243971 U CN2011203243971 U CN 2011203243971U CN 201120324397 U CN201120324397 U CN 201120324397U CN 202194084 U CN202194084 U CN 202194084U
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- Prior art keywords
- jacking
- valve
- bridge
- hydraulic
- hydraulic jacking
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Abstract
A synchronous hydraulic jacking system for a bridge comprises eight hydraulic control loops, wherein each hydraulic control loop comprises a hydraulic jacking cylinder, a solenoid directional control valve and a pressure reducing valve which are connected sequentially, the output ends of all the pressure reducing valves are connected and then are connected with a variable displacement pump and a relief valve, and the variable displacement pump and the relief valve are connected in parallel. According to the synchronous hydraulic jacking system, the synchronous hydraulic jacking system for the bridge adopts an eight-loop module mode and an automatic control system, so that the accuracy is high, the labor and labor intensity can be greatly reduced, and the efficiency is high.
Description
Technical field
The utility model relates to building field, is specially a kind of bridge synchronization of jacking up hydraulic system.
Background technology
The bridge pad replacing need be carried out synchronization of jacking up to beam slab, to avoid bridge floor and beam slab cracking and to guarantee the normal vehicle operation on it.Synchronization Control in the existing jacking technology is control automatically manually to be main on a small quantity.When operating automatically, automatic control system plays crucial effects, affect the trace control of jack-up system, and existing bridge synchronization of jacking up hydraulic system can't reach the trace control requirement that needs and can not satisfy synchronization accuracy owing to flow rate of hydraulic system.
The utility model content
The technical problem that the utility model solved is to provide a kind of bridge synchronization of jacking up hydraulic system, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solved adopts following technical scheme to realize:
A kind of bridge synchronization of jacking up hydraulic system comprises hydraulic control circuit, and said hydraulic control circuit has eight, and each hydraulic control circuit all comprises jacking hydraulic cylinder, solenoid operated directional valve and the reducing valve that is linked in sequence; The output of each said reducing valve links together, and links to each other with variable pump, overflow valve again, and said variable pump and said overflow valve are for being connected in parallel.
In the utility model, be circumscribed with a pressure sensor on the connecting path of said jacking hydraulic cylinder and solenoid operated directional valve.Be circumscribed with a pressure meter on the connecting path of said solenoid operated directional valve and reducing valve.Be circumscribed with a pressure sensor and a pressure meter on the connecting path of eight said reducing valve and said variable pump, overflow valve.
Beneficial effect
The utility model adopts automatically control when jacking is operated, jack is controlled by the PLC system, can significantly reduce the personnel amount of participating in construction, reduce labor intensity, and raises the efficiency.Simultaneously can reduce human error, the synchronization of jacking up precision can reach 0.5mm, has reduced the generation of engineering construction accident.
Description of drawings
Fig. 1 is the structural representation of the utility model bridge synchronization of jacking up hydraulic system.
The specific 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 the utility model bridge synchronization of jacking up hydraulic system; A kind of bridge synchronization of jacking up hydraulic system; Comprise hydraulic control circuit, said hydraulic control circuit has eight, and each hydraulic control circuit all comprises jacking hydraulic cylinder 7, solenoid operated directional valve 6 and the reducing valve 5 that is linked in sequence; The output of each said reducing valve 5 links together, and links to each other with variable pump 1, overflow valve 2 again, and said variable pump 1 and said overflow valve 2 are for being connected in parallel.
In the utility model, be circumscribed with a pressure sensor 3 on the connecting path of said jacking hydraulic cylinder 7 and solenoid operated directional valve 6.Be circumscribed with a pressure meter 4 on the connecting path of said solenoid operated directional valve 6 and reducing valve 5.Be circumscribed with a pressure sensor 8 and a pressure meter 9 on the connecting path of eight said reducing valve and said variable pump 1, overflow valve 2.
For adapting to large, medium and small type bridge jacking, the utility model adopts the octuple modular, when bridge pad is changed, each synchronous jack is placed near the bearing, and the starting hydraulic jacking system makes each jack synchronization of jacking up.The pressure that bridge synchronization of jacking up hydraulic system is adjusted each jack automatically according to the data such as pressure of pressure sensor, pressure meter output makes it to keep synchronously, then reports to the police like pressure limit.The system's pressurize that finishes of jacking is then accomplished until bearing replacement.Get into the falling stage at last, still guarantee that by system each jack is synchronous this moment.
More than show and described basic principle of the utility model and the advantage of principal 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 manual 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 (4)
1. a bridge synchronization of jacking up hydraulic system comprises hydraulic control circuit, it is characterized in that, said hydraulic control circuit has eight, and each hydraulic control circuit all comprises jacking hydraulic cylinder, solenoid operated directional valve and the reducing valve that is linked in sequence; The output of each said reducing valve links together, and links to each other with variable pump, overflow valve again, and said variable pump and said overflow valve are for being connected in parallel.
2. bridge synchronization of jacking up hydraulic system according to claim 1 is characterized in that, is circumscribed with a pressure sensor on the connecting path of said jacking hydraulic cylinder and solenoid operated directional valve.
3. bridge synchronization of jacking up hydraulic system according to claim 1 is characterized in that, is circumscribed with a pressure meter on the connecting path of said solenoid operated directional valve and reducing valve.
4. bridge synchronization of jacking up hydraulic system according to claim 1 is characterized in that, is circumscribed with a pressure sensor and a pressure meter on the connecting path of eight said reducing valve and said variable pump, overflow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203243971U CN202194084U (en) | 2011-09-01 | 2011-09-01 | Synchronous hydraulic jacking system for bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203243971U CN202194084U (en) | 2011-09-01 | 2011-09-01 | Synchronous hydraulic jacking system for bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194084U true CN202194084U (en) | 2012-04-18 |
Family
ID=45949003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203243971U Expired - Fee Related CN202194084U (en) | 2011-09-01 | 2011-09-01 | Synchronous hydraulic jacking system for bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104099868A (en) * | 2013-04-10 | 2014-10-15 | 财团法人中华顾问工程司 | Bridge jacking synchronous control integration system |
-
2011
- 2011-09-01 CN CN2011203243971U patent/CN202194084U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104099868A (en) * | 2013-04-10 | 2014-10-15 | 财团法人中华顾问工程司 | Bridge jacking synchronous control integration 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: 20120418 Termination date: 20150901 |
|
| EXPY | Termination of patent right or utility model |