CN202369903U - Hydraulic system for lifting ironing plate of paving machine - Google Patents
Hydraulic system for lifting ironing plate of paving machine Download PDFInfo
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- CN202369903U CN202369903U CN 201120472451 CN201120472451U CN202369903U CN 202369903 U CN202369903 U CN 202369903U CN 201120472451 CN201120472451 CN 201120472451 CN 201120472451 U CN201120472451 U CN 201120472451U CN 202369903 U CN202369903 U CN 202369903U
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- pipeline
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- lift cylinder
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Abstract
The utility model discloses a hydraulic system for lifting an ironing plate of a paving machine. The hydraulic system comprises a valve block. One end of a pipeline I is communicated with a main oil inlet P of the valve block, and the other end of the pipeline I is communicated with an oil inlet P1 of a lifting electromagnetic valve; one end of a pipeline II is communicated with a main oil return port T of the valve block, and the other end of the pipeline II is communicated with an oil return port I1 of the lifting electromagnetic valve; one end of a pipeline III is communicated with an oil outlet A1 of the lifting electromagnetic valve, and the other end of the pipeline III is communicated with one ends of a pipeline 4 and a pipeline 5; the other end of the pipeline 4 is communicated with a rodless cavity of a lifting oil cylinder; the other end of the pipeline 5 is communicated with the rodless cavity of the lifting oil cylinder; one end of a pipeline 6 is communicated with an oil outlet B1 of the lifting electromagnetic valve, and the other end of the pipeline 6 is communicated with one ends of a pipeline 7 and a pipeline 8; the other end of the pipeline 7 is communicated with the rod cavity of the lifting oil cylinder; and the other end of the pipeline 8 is communicated with the rod cavity of the lifting oil cylinder 2. The hydraulic system has the advantages of simple structure, reliable performance, low production cost and high efficiency.
Description
Technical field
The utility model relates to a kind of hydraulic system, particularly relates to a kind of hydraulic system that paver screed promotes that is used for.
Background technology
It is of a great variety that paver screed promotes hydraulic means at present; Control valve group structural redundancy complicacy and cost are high; Exist the throttle orifice position unreasonable more, cause system reliability low, time response is slow; Have a strong impact on the performance of paver automatic leveling system, irrational throttle orifice position causes lift cylinder high pressure grade to bring unnecessary cost to increase.
The utility model content
The purpose of the utility model is to overcome above-mentioned deficiency of the prior art, and a kind of hydraulic system that paver screed promotes that is used for is provided.This hydraulic system structure is simple, dependable performance, cost of production is low, efficient is high, is convenient to promote the use of.
For realizing above-mentioned purpose; The technical scheme that the utility model adopts is: be used for the hydraulic system that paver screed promotes; It is characterized in that: comprise electronic one way valve one, electronic one way valve two, electronic one way valve three, electronic one way valve four, lift cylinder one and lift cylinder two and the valve piece that is communicated with fuel tank; Be provided with in the said valve piece and promote electromagnetic valve, pipeline one and pipeline two; One end of said pipeline one is communicated with valve piece master oil inlet P, the other end of said pipeline one and the oil inlet P that promotes electromagnetic valve
1Be communicated with, an end of said pipeline two is communicated with valve piece master oil return inlet T, the other end of said pipeline two and the oil return inlet T that promotes electromagnetic valve
1Be communicated with, said lifting electromagnetic valve is connected with pipeline three, an end of said pipeline three and the oil-out A that promotes electromagnetic valve
1Be communicated with; The other end of said pipeline three is communicated with an end of pipeline parallel with one another four and pipeline five; The other end of said pipeline four is communicated with the rodless cavity of lift cylinder one through electronic one way valve one; The other end of said pipeline five is communicated with the rodless cavity of lift cylinder two through electronic one way valve three, and said lifting electromagnetic valve is connected with pipeline six, an end of said pipeline six and the oil-out B that promotes electromagnetic valve
1Be communicated with; The other end of said pipeline six is communicated with an end of pipeline parallel with one another seven and pipeline eight; The other end of pipeline seven is communicated with the rod chamber of lift cylinder one through electronic one way valve two, and the other end of said pipeline eight is communicated with the rod chamber of lift cylinder two through electronic one way valve four.
The above-mentioned hydraulic system that is used for the paver screed lifting is characterized in that: on the said pipeline six the damping electromagnetic valve is installed, the oil return inlet T of said damping electromagnetic valve
2Be communicated with valve piece master oil return inlet T through pipeline nine.
The above-mentioned hydraulic system that is used for the paver screed lifting is characterized in that: said valve piece master oil inlet P is communicated with valve piece master oil return inlet T through pipeline ten, on the said pipeline ten vacuum solenoid valve is installed.
The above-mentioned hydraulic system that is used for the paver screed lifting is characterized in that: on the said pipeline ten overflow valve that is in series with vacuum solenoid valve is installed.
The above-mentioned hydraulic system that is used for the paver screed lifting is characterized in that: on the said pipeline nine the throttling joint is installed.
The utility model compared with prior art has the following advantages:
1, the utility model is simple in structure, and novel and reasonable design is easy to install.
2, the utility model uses more convenient; Effectively reduced the response time of Automatic Levelling; Make the screed smooth decreasing through the oil return of damping solenoid control through the back pressure that the throttling joint produces 4-5MPa when screed descends, the thin-walled hole on the throttling joint produces very stable back pressure and receives the influence of hydraulic fluid temperature variation effectively to guarantee the steady of screed decline hardly.
3, the realization cost of the utility model is low, and result of use is good, is convenient to promote the use of.
In sum, the utility model is simple in structure, novel and reasonable design, and functional reliability is high, long service life, this hydraulic system structure is simple, dependable performance, cost of production is low, efficient is high, is convenient to promote the use of.
Below by accompanying drawing and embodiment, the technical scheme of the utility model is done further detailed description.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Description of reference numerals:
1-promotes electromagnetic valve; 2-pipeline one; The 3-vacuum solenoid valve;
4-pipeline ten; The 5-overflow valve; 6-pipeline two;
7-pipeline nine; 8-throttling joint; 9-damping electromagnetic valve;
10-pipeline six; 11-pipeline five; The electronic one way valve four of 12-;
13-lift cylinder two; The electronic one way valve three of 14-; 15-pipeline eight;
16-pipeline seven; The electronic one way valve two of 17-; 18-lift cylinder one;
The electronic one way valve one of 19-; 20-pipeline four; 21-pipeline three.
The specific embodiment
A kind of hydraulic system that is used for the paver screed lifting as shown in Figure 1; Comprise electronic one way valve 1, electronic one way valve 2 17, electronic one way valve 3 14, electronic one way valve 4 12, lift cylinder 1 and lift cylinder 2 13 and the valve piece that is communicated with fuel tank; Be provided with in the said valve piece and promote electromagnetic valve 1, pipeline 1 and pipeline 26; One end of said pipeline 1 is communicated with valve piece master oil inlet P, the other end of said pipeline 1 and the oil inlet P that promotes electromagnetic valve 1
1Be communicated with, an end of said pipeline 26 is communicated with valve piece master oil return inlet T, the other end of said pipeline 26 and the oil return inlet T that promotes electromagnetic valve 1
1Be communicated with, said lifting electromagnetic valve 1 is connected with pipeline 3 21, an end of said pipeline 3 21 and the oil-out A that promotes electromagnetic valve 1
1Be communicated with; The other end of said pipeline 3 21 is communicated with an end of pipeline parallel with one another 4 20 and pipeline 5 11; The other end of said pipeline 4 20 is communicated with the rodless cavity of lift cylinder 1 through electronic one way valve 1; The other end of said pipeline 5 11 is communicated with the rodless cavity of lift cylinder 2 13 through electronic one way valve 3 14, and said lifting electromagnetic valve 1 is connected with pipeline 6 10, an end of said pipeline 6 10 and the oil-out B that promotes electromagnetic valve 1
1Be communicated with; The other end of said pipeline 6 10 is communicated with an end of pipeline parallel with one another 7 16 and pipeline 8 15; The other end of pipeline 7 16 is communicated with the rod chamber of lift cylinder 1 through electronic one way valve 2 17, and the other end of said pipeline 8 15 is communicated with the rod chamber of lift cylinder 2 13 through electronic one way valve 4 12.
As shown in Figure 1, on the said pipeline 6 10 damping electromagnetic valve 9 is installed, the oil inlet P of said damping electromagnetic valve 9
2With its oil-out A
2Be communicated with the oil return inlet T of said damping electromagnetic valve 9
2Be communicated with valve piece master oil return inlet T through pipeline 97.
As shown in Figure 1, said valve piece master oil inlet P is communicated with valve piece master oil return inlet T through pipeline 10, on the said pipeline 10 vacuum solenoid valve 3 is installed.The overflow valve 5 that is in series with vacuum solenoid valve 3 is installed on the said pipeline 10.On the said pipeline 97 throttling joint 8 is installed.
During use; When paver paves under the operating mode normal floating; Vacuum solenoid valve 3, lifting electromagnetic valve 1 and damping electromagnetic valve 9 no powers; Electronic one way valve 1, electronic one way valve 2 17, electronic one way valve 3 14 and electronic one way valve 4 12 are all switched on, and this moment, each electronic one way valve was two-way admittance, and the rod chamber of lift cylinder 1 and lift cylinder 2 13 is communicated with pipeline 6 10 through pipeline 7 16 and pipeline 8 15 respectively; The rodless cavity of lift cylinder 1 and lift cylinder 2 13 is communicated with pipeline 3 21 through pipeline 4 20 and pipeline 5 11 respectively; Pipeline 6 10 all is communicated with fuel tank through the valve piece with pipeline 3 21, and lift cylinder 1 passes through to promote electromagnetic valve 1 and pipeline 26 direct drain charges with lift cylinder 2 13 interior pressure oils, and lift cylinder 1 all is in quick condition with lift cylinder 2 13; When paver is forced to pave; Vacuum solenoid valve 3, lifting electromagnetic valve 1, damping electromagnetic valve 9, electronic one way valve 1, electronic one way valve 2 17, electronic one way valve 3 14 and electronic one way valve 4 12 be no power all; Behind the equal no power of each electronic one way valve; At this moment; Electronic one way valve 1 is shut the fluid in lift cylinder one 18 rodless cavities, and electronic one way valve 2 17 is shut rod chamber inner fluid in the lift cylinder 1, and electronic one way valve 3 14 is shut the fluid in lift cylinder 2 13 rodless cavities; Electronic one way valve 4 12 is shut the fluid in lift cylinder 2 13 rod chambers, does not all have pressure oil in the rod chamber of lift cylinder 1 and lift cylinder 2 13 and the rodless cavity at this moment and gets into; When decompression paves; Vacuum solenoid valve 3 and 1 energising of lifting electromagnetic valve; Damping electromagnetic valve 9 no powers; Electronic one way valve 1, electronic one way valve 2 17, electronic one way valve 3 14 and 4 12 energisings of electronic one way valve, the rodless cavity of lift cylinder 1 and lift cylinder 2 13 links to each other with pipeline 3 21 with pipeline 5 11 through pipeline 4 20 respectively, and pipeline 3 21 passes through the oil-out A of lifting electromagnetic valve 1
1With the oil return inlet T that promotes electromagnetic valve 1
1Be communicated with, thereby the interior pressure oil of lift cylinder 1 and lift cylinder 2 13 rodless cavities is refluxed, the pressure in lift cylinder 1 and lift cylinder 2 13 rodless cavities is reduced; Simultaneously, through a part of pressure off-load of vacuum solenoid valve 3, guarantee that the rod chamber of lift cylinder 1 and lift cylinder 2 13 receives the pressure of 5MPa always with the pressure oil of valve piece master oil inlet P input; When manually screed promotes; Promote electromagnetic valve 1 energising; Vacuum solenoid valve 3 and damping electromagnetic valve 9 no powers, electronic one way valve 2 17 and electronic one way valve 4 12 no powers, electronic one way valve 1 and electronic one way valve 3 14 energisings; The rodless cavity of lift cylinder 1 and lift cylinder 2 13 links to each other with pipeline 3 21 with pipeline 5 11 through pipeline 4 20 respectively, and pipeline 3 21 is through promoting the oil-out A of electromagnetic valve 1
1With the oil return inlet T that promotes electromagnetic valve 1
1Be communicated with; Thereby the interior pressure oil of lift cylinder 1 and lift cylinder 2 13 rodless cavities is refluxed; Make lift cylinder 1 and lift cylinder 2 13 rodless cavity pressure oil off-loads; Pressure oil passes through pipeline 6 10 backs and divides two-way through the rod chamber of pipeline 7 16 with pipeline 8 15 entering lift cylinders 1 and lift cylinder 2 13, drives paver screed through the pressure differential between lift cylinder 1 and lift cylinder 2 13 rodless cavities and the rod chamber and upwards promotes;
When manually screed descends; Vacuum solenoid valve 3, lifting electromagnetic valve 1 no power; 9 energisings of damping electromagnetic valve; Electronic one way valve 1 and electronic one way valve 3 14 no powers, electronic one way valve 2 17 is all switched on electronic one way valve 4 12, and the rod chamber of lift cylinder 1 and lift cylinder 2 13 is through the oil return inlet T of pipeline 6 10 with damping electromagnetic valve 9
2Be communicated with; Thereby make the pressure oil of lift cylinder 1 and lift cylinder 2 13 rod chambers get back to fuel tank through valve piece master oil return inlet T; Lift cylinder 1 begins decline with lift cylinder 2 13 owing to receive the deadweight of screed, and the throttling joint 8 on the pipeline 6 10 produces back pressures steadily descends screed.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any restriction; Every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment did, all still belong in the protection domain of the utility model technical scheme.
Claims (5)
1. be used for the hydraulic system that paver screed promotes; It is characterized in that: comprise electronic one way valve one (19), electronic one way valve two (17), electronic one way valve three (14), electronic one way valve four (12), lift cylinder one (18) and lift cylinder two (13) and the valve piece that is communicated with fuel tank; Be provided with in the said valve piece and promote electromagnetic valve (1), pipeline one (2) and pipeline two (6); One end of said pipeline one (2) is communicated with valve piece master oil inlet P, the other end of said pipeline one (2) and the oil inlet P that promotes electromagnetic valve (1)
1Be communicated with, an end of said pipeline two (6) is communicated with valve piece master oil return inlet T, the other end of said pipeline two (6) and the oil return inlet T that promotes electromagnetic valve (1)
1Be communicated with, said lifting electromagnetic valve (1) is connected with pipeline three (21), an end of said pipeline three (21) and the oil-out A that promotes electromagnetic valve (1)
1Be communicated with; The other end of said pipeline three (21) is communicated with an end of pipeline parallel with one another four (20) and pipeline five (11); The other end of said pipeline four (20) is communicated with the rodless cavity of lift cylinder one (18) through electronic one way valve one (19); The other end of said pipeline five (11) is communicated with the rodless cavity of lift cylinder two (13) through electronic one way valve three (14), and said lifting electromagnetic valve (1) is connected with pipeline six (10), an end of said pipeline six (10) and the oil-out B that promotes electromagnetic valve (1)
1Be communicated with; The other end of said pipeline six (10) is communicated with an end of pipeline parallel with one another seven (16) and pipeline eight (15); The other end of pipeline seven (16) is communicated with the rod chamber of lift cylinder one (18) through electronic one way valve two (17), and the other end of said pipeline eight (15) is communicated with the rod chamber of lift cylinder two (13) through electronic one way valve four (12).
2. the hydraulic system that is used for the paver screed lifting according to claim 1 is characterized in that: on the said pipeline six (10) damping electromagnetic valve (9) is installed, the oil return inlet T of said damping electromagnetic valve (9)
2Be communicated with valve piece master oil return inlet T through pipeline nine (7).
3. the hydraulic system that is used for the paver screed lifting according to claim 1 and 2 is characterized in that: said valve piece master oil inlet P is communicated with valve piece master oil return inlet T through pipeline ten (4), on the said pipeline ten (4) vacuum solenoid valve (3) is installed.
4. the hydraulic system that is used for the paver screed lifting according to claim 3 is characterized in that: the overflow valve (5) that is in series with vacuum solenoid valve (3) is installed on the said pipeline ten (4).
5. the hydraulic system that is used for the paver screed lifting according to claim 2 is characterized in that: on the said pipeline nine (7) throttling joint (8) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120472451 CN202369903U (en) | 2011-11-24 | 2011-11-24 | Hydraulic system for lifting ironing plate of paving machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120472451 CN202369903U (en) | 2011-11-24 | 2011-11-24 | Hydraulic system for lifting ironing plate of paving machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202369903U true CN202369903U (en) | 2012-08-08 |
Family
ID=46593612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120472451 Expired - Fee Related CN202369903U (en) | 2011-11-24 | 2011-11-24 | Hydraulic system for lifting ironing plate of paving machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202369903U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995523A (en) * | 2012-09-07 | 2013-03-27 | 徐州万邦道路工程装备服务股份公司 | Hydraulic control device of ironing plate of paver |
| CN104047914A (en) * | 2014-07-03 | 2014-09-17 | 戴纳派克（中国）压实摊铺设备有限公司 | Floating screed control system of paver and paver |
-
2011
- 2011-11-24 CN CN 201120472451 patent/CN202369903U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995523A (en) * | 2012-09-07 | 2013-03-27 | 徐州万邦道路工程装备服务股份公司 | Hydraulic control device of ironing plate of paver |
| CN104047914A (en) * | 2014-07-03 | 2014-09-17 | 戴纳派克（中国）压实摊铺设备有限公司 | Floating screed control system of paver and paver |
| CN104047914B (en) * | 2014-07-03 | 2016-03-09 | 戴纳派克（中国）压实摊铺设备有限公司 | A kind of paver control of floating ironer system and paver |
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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: 20120808 Termination date: 20121124 |