CN204435178U - A kind of hydraulic tensioning control system of paver screed of improvement - Google Patents
A kind of hydraulic tensioning control system of paver screed of improvement Download PDFInfo
- Publication number
- CN204435178U CN204435178U CN201420764010.8U CN201420764010U CN204435178U CN 204435178 U CN204435178 U CN 204435178U CN 201420764010 U CN201420764010 U CN 201420764010U CN 204435178 U CN204435178 U CN 204435178U
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- China
- Prior art keywords
- hydraulic
- tensioning
- draft arm
- solenoid operated
- screed
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- Road Paving Machines (AREA)
Abstract
The utility model provides a kind of hydraulic tensioning control system of paver screed of improvement, comprise hydraulic control circuit, tensioning mechanism and controller, tensioning mechanism comprises hydraulic tensioning oil cylinder, in inverted U-shaped draft arm, traction piece and bracing frame, one end of hydraulic tensioning oil cylinder is articulated with draft arm, draft arm mid portion is connected with the main frame of paver by fixed mount, hydraulic control circuit comprises hydraulic pump, hydraulic pump is connected with hydraulic tensioning oil cylinder through solenoid operated directional valve by pipeline, pipeline between solenoid operated directional valve and hydraulic tensioning oil cylinder is provided with hydraulic lock, reducing valve is provided with between hydraulic pump and described solenoid operated directional valve.The utility model is simple and compact for structure, with low cost, easy to assembly, easy and simple to handle, the draft arm of U-shaped is connected with the main frame of paver by fixed mount, and adopt the control mode of hydraulic pressure, coordinate overflow valve, hydraulic lock, make whole screed adjustment process accurate, the real-time adjustment to screed tensioning can be realized.
Description
Technical field
The utility model belongs to job engineering field, road surface, especially relates to a kind of hydraulic tensioning control system of paver screed of improvement.
Background technology
In traditional paver structure, when paver screed width is larger, need to use and lengthen screed, in use, when free state, ironing edges of boards section part is in falling " U " font to the distortion that has a downwarp, so lengthening screed can take certain means to strengthen its rigidity, avoid two ends to having a downwarp.
At present, domestic and international most paver all uses the mode of mechanical tensioning to keep the rigidity of screed, and particularly for the paver that paving width is larger, this tensioning apparatus is exactly indispensable.This tensioning mode is by regulating the connecting screw rod of support bar to regulate its degrees of tensions, and then controls the tensioning degree of screed.This tensioning mode has two shortcomings: one is the bad control of tensile force, although there is certain technical data specification, but in fact in work progress, be difficult to reach the technical data that requires in specification during on-site consolidation, major part to lean on the construction experience of operator to determine tensioning degree, this can strengthen the distortion inaccuracy of screed undoubtedly, causes screed to be out of shape more serious, finally will cause harmful effect to construction quality.Two is that dismounting is very difficult, because the screed of paver often needs dismounting, because support bar is by larger active force, what cause connecting thread to be stung is very dead, very difficult during dismounting.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of hydraulic tensioning control system of paver screed of improvement, and this system architecture is simple, effectively can complete automatic tensioning function.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of hydraulic tensioning control system of paver screed of improvement, comprise hydraulic control circuit, tensioning mechanism and controller, described tensioning mechanism comprises hydraulic tensioning oil cylinder, in inverted U-shaped draft arm, traction piece and bracing frame, one end of described hydraulic tensioning oil cylinder is articulated with described draft arm, described draft arm mid portion is connected with the main frame of paver by fixed mount, the two ends of described draft arm lengthen screed respectively by traction piece and left and right and are connected, described hydraulic tensioning oil cylinder is hinged on support frame as described above, described hydraulic control circuit comprises hydraulic pump, described hydraulic pump is connected with described hydraulic tensioning oil cylinder through solenoid operated directional valve by pipeline, pipeline between described solenoid operated directional valve and described hydraulic tensioning oil cylinder is provided with hydraulic lock, reducing valve is provided with between described hydraulic pump and described solenoid operated directional valve, the oil-in of described reducing valve is all connected with the hydraulic fluid port one of described solenoid operated directional valve, described hydraulic pump is connected with the hydraulic fluid port two of described solenoid operated directional valve, described solenoid operated directional valve, described reducing valve, described hydraulic lock is connected with described controller respectively.
Described hydraulic pump is interconnected by the described oil-in of described reducing valve and described solenoid operated directional valve.
Described draft arm comprises left draft arm, right draft arm, and described left draft arm, described right draft arm are all curved.
Connecting line between described hydraulic pump and the described actuator port two of described solenoid operated directional valve is provided with overflow valve, and described overflow valve is connected with described controller.
Described hydraulic tensioning oil cylinder is other is provided with retaining mechanism, and described retaining mechanism is connected with described controller.
Compared with prior art, the utility model has the advantage of: simple and compact for structure, with low cost, easy to assembly, easy and simple to handle, the draft arm of U-shaped is connected with the main frame of paver by fixed mount, and adopt the control mode of hydraulic pressure, coordinate overflow valve, hydraulic lock, make whole screed adjustment process accurate, the real-time adjustment to screed tensioning can be realized, the different force that the side tensioning mechanism of the screed left and right sides can be subject to for the screed left and right sides and self contained function, solve the problem on deformation of the screed left and right sides.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
In figure:
1, left lengthening screed 2, main frame 3, right lengthening screed
4, drawing piece 5, fixed mount 6, draft arm
7, retaining mechanism 8, hydraulic tensioning oil cylinder 9, hydraulic lock
10, solenoid operated directional valve 11, reducing valve 12, hydraulic pump
13, overflow valve
Detailed description of the invention
As shown in Figure 1, the utility model provides a kind of hydraulic tensioning control system of paver screed of improvement, comprise hydraulic control circuit, tensioning mechanism and controller, tensioning mechanism comprises hydraulic tensioning oil cylinder 8, in inverted U-shaped draft arm 6, traction piece 4 and bracing frame, one end of hydraulic tensioning oil cylinder 8 is articulated with draft arm 6, screed comprises left basic screed, right basic screed, the left lengthening screed 1 be connected with the basic screed in a left side and the right lengthening screed 3 be connected with the basic screed in the right side, draft arm 6 mid portion is connected with the main frame 2 of paver by fixed mount 5, the two ends of draft arm 6 are respectively by traction piece 4 and left lengthening screed 1, right lengthening screed 3 mutually away from opposite end be connected, hydraulic tensioning oil cylinder 8 is hinged on bracing frame, hydraulic tensioning oil cylinder 8 is other is provided with retaining mechanism 7, retaining mechanism 7 is connected with described controller, hydraulic control circuit comprises hydraulic pump 12, hydraulic pump 12 is connected with hydraulic tensioning oil cylinder 8 through solenoid operated directional valve 10 by pipeline, pipeline between solenoid operated directional valve 10 and hydraulic tensioning oil cylinder 8 is provided with hydraulic lock 9, reducing valve 11 is provided with between hydraulic pump 12 and solenoid operated directional valve 10, the oil-in of reducing valve 11 is all connected with the hydraulic fluid port one of solenoid operated directional valve 10, hydraulic pump 12 is connected with the hydraulic fluid port two of solenoid operated directional valve 10, and solenoid operated directional valve 10, reducing valve 11, hydraulic lock 9 are connected with controller respectively.
Hydraulic pump 12 is interconnected by the oil-in of reducing valve 11 and solenoid operated directional valve 10, and the connecting line between the actuator port two of hydraulic pump 12 and solenoid operated directional valve 10 is provided with overflow valve 13, and overflow valve 13 is connected with described controller.
Draft arm 6 comprises left draft arm, right draft arm, left draft arm, right draft arm are all curved, good cushioning effect can be had in distraction procedure, draft arm 6 is fixed on main frame 2 by fixed mount 5, and under the effect of hydraulic tensioning oil cylinder 8, traction piece 4 and draft arm 6 acting in conjunction make left and right lengthening screed phase both sides move.
During use, tensioning mechanism is connected adjustably with the left and right sides lengthening screed, controller can control overflow valve 13, hydraulic lock 9, solenoid operated directional valve 10, reducing valve 11, the tensioning mechanism of homonymy is adjusted, the different force that the side tensioning mechanism of the screed left and right sides is subject to for the screed left and right sides and independently action, solve the problem on deformation of the screed left and right sides better.
The utility model is simple and compact for structure, with low cost, easy to assembly, easy and simple to handle, the draft arm of U-shaped is connected with the main frame of paver by fixed mount, and adopt the control mode of hydraulic pressure, coordinate overflow valve, hydraulic lock, make whole screed adjustment process accurate, the real-time adjustment to screed tensioning can be realized, the different force that the side tensioning mechanism of the screed left and right sides can be subject to for the screed left and right sides and self contained function, solve the problem on deformation of the screed left and right sides.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (5)
1. the hydraulic tensioning control system of the paver screed improved, it is characterized in that: comprise hydraulic control circuit, tensioning mechanism and controller, described tensioning mechanism comprises hydraulic tensioning oil cylinder, in inverted U-shaped draft arm, traction piece and bracing frame, one end of described hydraulic tensioning oil cylinder is articulated with described draft arm, described draft arm mid portion is connected with the main frame of paver by fixed mount, the two ends of described draft arm lengthen screed respectively by traction piece and left and right and are connected, described hydraulic tensioning oil cylinder is hinged on support frame as described above, described hydraulic control circuit comprises hydraulic pump, described hydraulic pump is connected with described hydraulic tensioning oil cylinder through solenoid operated directional valve by pipeline, pipeline between described solenoid operated directional valve and described hydraulic tensioning oil cylinder is provided with hydraulic lock, reducing valve is provided with between described hydraulic pump and described solenoid operated directional valve, the oil-in of described reducing valve is all connected with the hydraulic fluid port one of described solenoid operated directional valve, described hydraulic pump is connected with the hydraulic fluid port two of described solenoid operated directional valve, described solenoid operated directional valve, described reducing valve, described hydraulic lock is connected with described controller respectively.
2. the hydraulic tensioning control system of the paver screed of a kind of improvement according to claim 1, is characterized in that: described hydraulic pump is interconnected by the described oil-in of described reducing valve and described solenoid operated directional valve.
3. the hydraulic tensioning control system of the paver screed of a kind of improvement according to claim 2, is characterized in that: described draft arm comprises left draft arm, right draft arm, and described left draft arm, described right draft arm are all curved.
4. the hydraulic tensioning control system of the paver screed of a kind of improvement according to claim 3, it is characterized in that: the connecting line between described hydraulic pump and the described actuator port two of described solenoid operated directional valve is provided with overflow valve, described overflow valve is connected with described controller.
5. the hydraulic tensioning control system of the paver screed of a kind of improvement according to claim 4, is characterized in that: described hydraulic tensioning oil cylinder is other is provided with retaining mechanism, and described retaining mechanism is connected with described controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420764010.8U CN204435178U (en) | 2014-12-05 | 2014-12-05 | A kind of hydraulic tensioning control system of paver screed of improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420764010.8U CN204435178U (en) | 2014-12-05 | 2014-12-05 | A kind of hydraulic tensioning control system of paver screed of improvement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204435178U true CN204435178U (en) | 2015-07-01 |
Family
ID=53603066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420764010.8U Expired - Fee Related CN204435178U (en) | 2014-12-05 | 2014-12-05 | A kind of hydraulic tensioning control system of paver screed of improvement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204435178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914196A (en) * | 2019-03-28 | 2019-06-21 | 中联重科股份有限公司 | Side tensioning device of ironing plate and paver |
-
2014
- 2014-12-05 CN CN201420764010.8U patent/CN204435178U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914196A (en) * | 2019-03-28 | 2019-06-21 | 中联重科股份有限公司 | Side tensioning device of ironing plate and paver |
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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: 20150701 Termination date: 20151205 |
|
| EXPY | Termination of patent right or utility model |