CN101654901A - Protector for preventing paver ironing plate from being twisted - Google Patents
Protector for preventing paver ironing plate from being twisted Download PDFInfo
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- CN101654901A CN101654901A CN200910023863A CN200910023863A CN101654901A CN 101654901 A CN101654901 A CN 101654901A CN 200910023863 A CN200910023863 A CN 200910023863A CN 200910023863 A CN200910023863 A CN 200910023863A CN 101654901 A CN101654901 A CN 101654901A
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- valve group
- paver
- programmable logic
- logic controller
- solenoid valve
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- 238000010409 ironing Methods 0.000 title abstract description 4
- 230000001012 protector Effects 0.000 title abstract 3
- 230000001681 protective effect Effects 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000004458 analytical method Methods 0.000 abstract description 4
- 238000011897 real-time detection Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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Abstract
The invention discloses a protector for preventing a paver ironing plate from being twisted. The protector comprises two location sensors which are installed at the travel positions of left and rightleveling cylinders on left and right side arms of the paver and carries out real time detection, and a programmable controller which carries out contrastive analysis on the detected signal and correspondingly carries out control adjustment on the connection/disconnection and opening degree of each solenoid valve in the left solenoid valve group and the right solenoid valve group respectively; boththe two location sensors are connected with the programmable controller, and the programmable controller is respectively connected with each solenoid valve in the left solenoid valve group and the right solenoid valve group; the left solenoid valve group and the right solenoid valve group are respectively installed in hydraulic pipelines of left and right leveling cylinders and hydraulic pumps; and the left and right leveling cylinders respectively carry out control driving on the left and right arms. The invention is reasonable in design, simple and convenient in use operation, and reliablein movement, and can effectively solve the practical problem of forced twisting ironing out existing in the paving process of a prior paver.
Description
Technical field
The invention belongs to pavement spread construction machinery applied technical field, especially relate to a kind of protective device that prevents the paver screed torsional deformation.
Background technology
At present, paver has become requisite a kind of pavement spread construction machinery in the Expressway Construction, is used in a large number.But along with the continuous development of electronic technology and automated control technology, and improving constantly of requiring of Expressway Construction, give paver and should have high-intelligentization, the high automation function tasks.Paver is the same with other large-scale engineering machinery equipment, has suitable complex mechanical construction, thereby how to realize co-ordination between each mechanical component of paver well, be the subject matter of required solution in the design of paver electrical automation control system always.The paver electrical automation control system not only should have control, coordinate the function that each mechanical component of paver carries out co-ordination, but also should have the function of some mechanical component being carried out " protection ".
As everyone knows, the planeness of paver screed directly determines the construction effect of paver, is uneven, the screed of torsional deformation can not pave smooth road surface, so the anti-torsional deformation of paver screed is very important to paver.And be not difficult to find out the combining structure from being connected between existing paver screed and other member, during actual paving, when being arranged on screed top and drive the lifting hydraulic jack " locked " that screed promotes and fall, be the extension elongation of screed fixing after, two big arms that symmetry is installed in the frame left and right sides are connected as a whole with screed, specifically, two big arm leading sections are fixed on the angle regulating device that is installed on the screed, and are connected by turning cylinder between two big arms and the screed.Since paver require on the function of use to about two big arms control about two levelling oil cylinders must single movement and be independent of each other, a kind of situation so just appears: when promote hydraulic jack locked and about two levelling oil cylinders still when moving up and down, if about two levelling cylinder action steps occur inconsistent or the elongation difference is excessive, two big arms " were twisted " situation of screed about two levelling oil cylinders passed through respectively about will occurring, to directly cause screed or big arm permanent mechanical deformation to occur when serious, if big arm or screed are if torsional deformation is serious, can not this come into operation again, thereby cause greater loss.
As seen from the above analysis, the reason that screed " is twisted " torsional deformation be about two levelling oil cylinder knee-actions be out of step, rise to maximum position such as an oil cylinder, situation or two oil cylinders adjustment gap that another oil cylinder drops to maximum position are bigger, stretch out 10cm such as an oil cylinder, and another oil cylinder stretches out 30cm, and difference reaches the situation of 20cm, all forms the situation of strong " twisting " screed.
Summary of the invention
Technical problem to be solved by this invention is at above-mentioned deficiency of the prior art; a kind of protective device that prevents the paver screed torsional deformation is provided; it is reasonable in design, use is easy and simple to handle and result of use is good, reliable in action, can effectively solve the practical problem of existing strong " twisting " screed in the existing paver paving process.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of protective device that prevents the paver screed torsional deformation, it is characterized in that: comprise two respectively to be installed on about paver on two big arms about the position sensor that detects in real time of the travel position of two levelling oil cylinders and to two position sensor institute detection signals be analyzed and corresponding respectively to about the break-make of each electromagnetic valve and the programmable logic controller that the aperture size is controlled adjustment in two electromagnetic valve group; Described two position sensors all connect programmable logic controller, programmable logic controller respectively with about each electromagnetic valve in two electromagnetic valve group join; About being connected between two levelling oil cylinders and hydraulic pump about two electromagnetic valve group are installed in respectively about described in two fluid pressure lines, and described electromagnetic valve group comprises high-speed switch valve, solenoid operated directional valve and flow speed control valve; Two levelling oil cylinders are controlled driving by hydraulic pump to two big arms about described about described.
Also comprise the display that joins with programmable logic controller.
Also comprise the Alarm Unit that joins with programmable logic controller and control by programmable logic controller.
Also comprise the make-and-break control switch that is serially connected in the programmable logic controller current supply circuit.
The present invention compared with prior art has the following advantages:
1, rationally novel in design, it is convenient that simple in structure and installation is laid, as long as two levelling oil cylinders about controlling make the two only action within the specific limits, can avoiding by force, the situation of " twisting " screed takes place.
2, use easy and simple to handlely, it is convenient to realize, not only cost is low to adopt programmable logic controller, and parameter is provided with conveniently, and the protection value is convenient adjustable according to actual conditions, and the protection action of programmed preset and function are all convenient can be adjusted and change.
3; good and the reliable in action of result of use; by about a position sensor respectively is installed on two levelling oil cylinders; the travel position information of two levelling two oil cylinders about detecting respectively; and with about the location information signal of two levelling two oil cylinders send programmable logic controller after gathering out; programmable logic controller carries out analyzing and processing to two position signallings; when the position signal value of two levelling two oil cylinders reaches default protection working value about analysis draws; programmable logic controller is outwards exported control signal according to the operating mode situation; two levelling oil cylinders are realized " rising simultaneously " or " descending simultaneously " or " outage locking " function about making; avoid continuation " to twist " situation of screed, thereby played the purpose and the function of protection screed.To sum up; by after increasing protective device of the present invention on the paver; can avoid most possibly taking place because of " twisting " screed causes the situation of screed distortion; significantly reduced the accident rate of ironing distortion; lowered maintenance cost; guarantee the construction effect that paver paves effectively, efficiently solved the practical problem of existing strong " twisting " screed in the existing paver paving process in a word.
4, under certain operating mode; if when occurring not needing to protect screed; only need operate the make-and-break control switch that is serially connected in the programmable logic controller current supply circuit; close the defencive function of programmable logic controller, so the paver of this moment protective device of the present invention being installed on operation and function just with the existing paver that protective device of the present invention is not installed without any difference.
In sum, the present invention is reasonable in design, use is easy and simple to handle and result of use is good, reliable in action, can effectively solve the practical problem of existing strong " twisting " screed in the existing paver paving process.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is an operating principle block diagram of the present invention.
Fig. 2 is the installation position schematic diagram of the present invention left side position sensor.
Description of reference numerals:
The 1-programmable logic controller; The 2-display; The 3-Alarm Unit;
The 4-make-and-break control switch; The big arm in 5-1-left side; The big arm in 5-2-right side;
6-1-left side levelling oil cylinder; The right levelling oil cylinder of 6-2-; The 7-hydraulic pump;
9-1-left side high-speed switch valve; The right high-speed switch valve of 9-2-; 10-1-left side solenoid operated directional valve;
The right solenoid operated directional valve of 10-2-; 11-1-left side flow speed control valve; The right flow speed control valve of 11-2-;
12-promotes hydraulic jack; The 13-screed; 14-elevation angle adjusting screw(rod);
The 15-turning cylinder; The 16-frame; 17-1-left side position sensor;
The right position sensor of 17-2-.
The specific embodiment
As shown in Figure 1, the present invention includes two respectively to be installed on about paver on two big arms about the position sensor that detects in real time of the travel position of two levelling oil cylinders and to two position sensor institute detection signals be analyzed and corresponding respectively to about the break-make of each electromagnetic valve and the programmable logic controller 1 that the aperture size is controlled adjustment in two electromagnetic valve group.Described two position sensors all connect programmable logic controller 1, programmable logic controller 1 respectively with about each electromagnetic valve in two electromagnetic valve group join.About two levelling oil cylinders were connected with 7 of hydraulic pumps about two electromagnetic valve group were installed in respectively about described in two fluid pressure lines, and described electromagnetic valve group comprises high-speed switch valve, solenoid operated directional valve and flow speed control valve.Two levelling oil cylinders are controlled driving by hydraulic pump to two big arms about described about described.
The present invention also comprises the display 2 that joins with programmable logic controller 1, join with programmable logic controller 1 and the Alarm Unit 3 controlled by programmable logic controller 1 and be serially connected in make-and-break control switch 4 in programmable logic controller 1 current supply circuit.
In conjunction with Fig. 2, two big arms are symmetrical big arm 5-1 in left side and the big arm 5-2 in right side that is installed in frame 16 left and right sides about described, two levelling oil cylinders are respectively left levelling oil cylinder 6-1 and the right levelling oil cylinder 6-2 that is installed in big arm 5-1 in left side and right side big arm 5-2 rearward end about described, and described hydraulic pump 7 joins with left levelling oil cylinder 6-1 and right levelling oil cylinder 6-2 respectively by fluid pressure line.Described left levelling oil cylinder 6-1, hydraulic pump 7 and left side electromagnetic valve group are formed a left levelling hydraulic system of the big arm 5-1 in left side being controlled driving; Described right levelling oil cylinder 6-2, hydraulic pump 7 and right side electromagnetic valve group are formed a right levelling hydraulic system of the big arm 5-2 in right side being controlled driving.The electromagnetic valve group that is installed in 7 hydraulic tube roads of left levelling oil cylinder 6-1 and liquid pump pressure is that described left side electromagnetic valve group comprises left high-speed switch valve 9-1, left solenoid operated directional valve 10-1 and left flow speed control valve 11-1, and the electromagnetic valve group that is installed in 7 hydraulic tube roads of right levelling oil cylinder 6-2 and liquid pump pressure is that described right side electromagnetic valve group comprises right high-speed switch valve 9-2, right solenoid operated directional valve 10-2 and right flow speed control valve 11-2.
Described two position sensors are for being installed in left position sensor 17-1 and the right position sensor 17-2 on left levelling oil cylinder 6-1 and the right levelling oil cylinder 6-2 respectively.The upper end of described left levelling oil cylinder 6-1 and right levelling oil cylinder 6-2 is fixed on the frame 16, and the lower end of the two is separately fixed on the rearward end of big arm 5-1 in left side and the big arm 5-2 in right side.The upper end of the lifting hydraulic jack 12 that is installed in screed 13 tops and 13 liftings of driving screed and falls is fixed on the frame 16, and the lower end of lifting hydraulic jack 12 is fixed on the screed 13.The big arm leading section of big arm 5-1 in described left side and the big arm 5-2 in right side all is fixed on the angle regulating device that is installed on the screed 13, and is connected by turning cylinder 15 between the big arm 5-1 in left side and the big arm 5-2 in right side and the screed 13.In the present embodiment, described angle regulating device is that screw rod 14 is adjusted at the elevation angle.In the actual job process, big arm 5-1 in left side and the big arm 5-2 in right side drive the elevation angle that is installed on the screed 13 when rotating and rotating with the moving axis 15 that rotates and adjust screw rod 14 knee-actions, tackle the elevation angle of screed 13 by the knee-action of elevation angle adjustment screw rod 14 mutually and adjust.
The course of work of the present invention is: during operating paver, left side position sensor 17-1 and right position sensor 17-2 detect the travel position of left levelling oil cylinder 6-1 and right levelling oil cylinder 6-2 respectively in real time, and institute's detection signal all is uploaded to programmable logic controller 1 synchronously; The left levelling oil cylinder 6-1 that 1 pair of programmable logic controller receives and the travel position signal of right levelling oil cylinder 6-2 compares, analyzing and processing, and respectively the break-make and the aperture size of each electromagnetic valve in two electromagnetic valve group about in two levelling oil cylinders about being installed in and 7 hydraulic tube roads of hydraulic pump are controlled adjustment according to analysis result is corresponding.Particularly: when the comparing result that draws left levelling oil cylinder 6-1 and right levelling oil cylinder 6-2 travel position signal numerical value when programmable logic controller 1 analyzing and processing reaches default protection working value; programmable logic controller 1 is outwards exported corresponding control signal according to operating mode; specifically be that two electromagnetic valve group about in the fluid pressure line of 7 of two levelling oil cylinders about being installed in respectively and hydraulic pumps are controlled adjustment respectively; then reach to about the travel position of two levelling oil cylinders control the purpose of adjustment; afterwards by about two levelling oil cylinders respectively big arm 5-1 in left side and the big arm 5-2 in right side are controlled driving; when big arm 5-1 in left side and the big arm 5-2 in right side move; the corresponding elevation angle by 14 pairs of screeds 13 of elevation angle adjusting screw(rod) is adjusted; two levelling oil cylinders " rise " or " descending simultaneously " or " outage locking " function simultaneously about final the realization; avoid continuation " to twist " situation of screed 13, thereby played the purpose and the function of protection screed 13.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, everyly any simple modification that above embodiment did, change and equivalent structure changed, all still belong in the protection domain of technical solution of the present invention according to the technology of the present invention essence.
Claims (4)
1. protective device that prevents the paver screed torsional deformation, it is characterized in that: comprise two respectively to be installed on about paver on two big arms about the position sensor that detects in real time of the travel position of two levelling oil cylinders and to two position sensor institute detection signals be analyzed and corresponding respectively to about the break-make of each electromagnetic valve and the programmable logic controller (1) that the aperture size is controlled adjustment in two electromagnetic valve group; Described two position sensors all connect programmable logic controller (1), programmable logic controller (1) respectively with about each electromagnetic valve in two electromagnetic valve group join; About being connected between two levelling oil cylinders and hydraulic pump (7) about two electromagnetic valve group are installed in respectively about described in two fluid pressure lines, and described electromagnetic valve group comprises high-speed switch valve, solenoid operated directional valve and flow speed control valve; Two levelling oil cylinders are controlled driving by hydraulic pump to two big arms about described about described.
2. according to the described a kind of protective device that prevents the paver screed torsional deformation of claim 1, it is characterized in that: also comprise the display (2) that joins with programmable logic controller (1).
3. according to claim 1 or 2 described a kind of protective devices that prevent the paver screed torsional deformation, it is characterized in that: also comprise the Alarm Unit (3) that joins and control by programmable logic controller (1) with programmable logic controller (1).
4. according to claim 1 or 2 described a kind of protective devices that prevent the paver screed torsional deformation, it is characterized in that: also comprise the make-and-break control switch (4) that is serially connected in programmable logic controller (1) current supply circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910023863 CN101654901B (en) | 2009-09-09 | 2009-09-09 | Protector for preventing paver ironing plate from being twisted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910023863 CN101654901B (en) | 2009-09-09 | 2009-09-09 | Protector for preventing paver ironing plate from being twisted |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101654901A true CN101654901A (en) | 2010-02-24 |
| CN101654901B CN101654901B (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910023863 Active CN101654901B (en) | 2009-09-09 | 2009-09-09 | Protector for preventing paver ironing plate from being twisted |
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| CN (1) | CN101654901B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626604A (en) * | 2014-11-05 | 2016-06-01 | 陕西中大机械集团有限责任公司 | Hydraulic control circuit for extension ironing and inverted arching prevention of paver |
| CN113152222A (en) * | 2021-04-13 | 2021-07-23 | 徐州工业职业技术学院 | Ironing plate suitable for small paver |
| CN114837044A (en) * | 2022-04-14 | 2022-08-02 | 中铁北京工程局集团有限公司 | High-precision automatic paving system and paving method for road macadam |
| CN117345711A (en) * | 2023-10-31 | 2024-01-05 | 徐工集团工程机械股份有限公司道路机械分公司 | Paver screed control system and method and paver |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5568992A (en) * | 1995-05-19 | 1996-10-29 | Caterpillar Paving Products Inc. | Screed control system for an asphalt paver and method of use |
| DE19709131C2 (en) * | 1997-03-06 | 2003-02-20 | Abg Allg Baumaschinen Gmbh | pavers |
| CN2579939Y (en) * | 2002-09-29 | 2003-10-15 | 孙祖望 | Digital automatic leveling device for pitch paver |
| CN2658209Y (en) * | 2003-10-30 | 2004-11-24 | 长沙中联重工科技发展股份有限公司 | Automatic levelling device of paver with two-stage regulation |
| CN201447658U (en) * | 2009-09-09 | 2010-05-05 | 陕西中大机械集团有限责任公司 | Protective device for preventing ironing board of spreading machine from twist deformation |
-
2009
- 2009-09-09 CN CN 200910023863 patent/CN101654901B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626604A (en) * | 2014-11-05 | 2016-06-01 | 陕西中大机械集团有限责任公司 | Hydraulic control circuit for extension ironing and inverted arching prevention of paver |
| CN113152222A (en) * | 2021-04-13 | 2021-07-23 | 徐州工业职业技术学院 | Ironing plate suitable for small paver |
| CN114837044A (en) * | 2022-04-14 | 2022-08-02 | 中铁北京工程局集团有限公司 | High-precision automatic paving system and paving method for road macadam |
| CN117345711A (en) * | 2023-10-31 | 2024-01-05 | 徐工集团工程机械股份有限公司道路机械分公司 | Paver screed control system and method and paver |
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| Publication number | Publication date |
|---|---|
| CN101654901B (en) | 2010-12-29 |
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Denomination of invention: Protector for preventing paver ironing plate from being twisted Effective date of registration: 20130620 Granted publication date: 20101229 Pledgee: Chongqing Three Gorges guarantee Group Co., Ltd. Xi'an branch Pledgor: Jiangxi Communications Engineering Group Co., Ltd.|Shaanxi Zhongda machinery Refco Group Ltd Registration number: 2013990000391 |
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Date of cancellation: 20150520 Granted publication date: 20101229 Pledgee: Chongqing Three Gorges guarantee Group Co., Ltd. Xi'an branch Pledgor: Jiangxi Communications Engineering Group Co., Ltd.|Shaanxi Zhongda machinery Refco Group Ltd Registration number: 2013990000391 |
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Denomination of invention: Protector for preventing paver ironing plate from being twisted Effective date of registration: 20150526 Granted publication date: 20101229 Pledgee: Bank of Xi'an Limited by Share Ltd South City Branch Pledgor: Shaanxi Jointank Machinery Group Co., Ltd. Registration number: 2015990000394 |
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Date of cancellation: 20180523 Granted publication date: 20101229 Pledgee: Bank of Xi'an Limited by Share Ltd South City Branch Pledgor: Shaanxi Jointank Machinery Group Co., Ltd. Registration number: 2015990000394 |
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Denomination of invention: Protector for preventing paver ironing plate from being twisted Effective date of registration: 20180523 Granted publication date: 20101229 Pledgee: Bank of Xi'an Limited by Share Ltd South City Branch Pledgor: Shaanxi Jointank Machinery Group Co., Ltd. Registration number: 2018990000399 |
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Effective date of registration: 20210830 Granted publication date: 20101229 |