CN102677575A - Control method for preventing distortion of big arms and screed of paver - Google Patents
Control method for preventing distortion of big arms and screed of paver Download PDFInfo
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- CN102677575A CN102677575A CN2012101504285A CN201210150428A CN102677575A CN 102677575 A CN102677575 A CN 102677575A CN 2012101504285 A CN2012101504285 A CN 2012101504285A CN 201210150428 A CN201210150428 A CN 201210150428A CN 102677575 A CN102677575 A CN 102677575A
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- levelling
- big arm
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- paver
- controller
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Abstract
The invention discloses a control method for preventing the distortion of big arms and a screed of paver, and relates to the technical field of paver control. Displacement distance numerical values of the leveling actions of the front ends of left and right big arms are sent to a controller by distance sensors, and when the height difference of the front ends of the two big arms is in a safety range, alarm information is not sent, and a control command is not sent to leveling magnetic valves which control left and right leveling hydro-cylinders; and when the height difference of the front ends of the two big arms exceeds the safety range, the alarm information is sent to a display and a loudspeaker by the controller, the control command is sent to the leveling magnetic valves which control the left and right leveling hydro-cylinders, so that the left and right leveling hydro-cylinders only can be moved towards the direction of height difference reduction, and the movement toward the direction of height difference increase is locked. The control method for preventing the distortion of the big arms and the screed of the paver disclosed by the invention has the advantages that the distortion of the big arms and the screed caused when the height difference of the front ends of the two big arms exceeds the safety range is avoided, in addition the elevation of the leveling action also can be visually displayed on a display screen, and the economic benefit is remarkable.
Description
Technical field
The present invention relates to paver control technology field, specifically is a kind of control method that prevents big arm of paver and screed torsional deformation.
Background technology
At present, two big arm rear ends are rigidly attached on the screed framework through fastening bolt about paver, are linked to be an integral body, on the piston rod of two levelling oil cylinders, under the traction of levelling oil cylinder piston, can independently move up and down separately about big arm front end is connected in respectively.At paver in work progress; About requirement two big arm front ends about can independently move up and down under two levelling oil cylinder pistons tractions; When about near two big arm front ends when sustained height, moving up and down; When promptly the difference in height of two big arm front ends is very little, can not cause big arm and screed torsional deformation; When difference in height surpasses certain numerical value (general 8-10 centimetre), will cause big arm and screed torsional deformation, cause parts damages, influence spreading quality.Industry does not also have good solution at present, mainly all is to lean on operating personnel to prevent that through range estimation distortion from taking place.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art; The present invention provides a kind of control method that prevents big arm of paver and screed torsional deformation; When the difference in height of two big arm front ends surpasses certain numerical value; Send warning message, and the levelling oil cylinder of the big arm of the output locked traction of control signal, prevent that harm from taking place or expansion.
The technical solution adopted for the present invention to solve the technical problems is: a kind of control device that prevents big arm of paver and screed torsional deformation; Draw at paver and respectively install one on the levelling oil cylinder piston of big arm and be used to measure the range sensor of big arm nose motion position; Range sensor connects a controller; Controller connects a display and warning device, and controller connects left and right levelling solenoid control relay; Range sensor with about the shift length numerical value of big arm front end levelling action, be delivered to controller, controller sends operation result through the internal processes computing, the levelling action elevation that shows directly perceived on display screen; Specific as follows:
When the difference in height of two big arm front ends during in safe range, do not send warning message, do not send control instruction and give two levelling oil cylinder levelling solenoid control relays about control;
When the difference in height of two big arm front ends surpasses safe range; Controller sends warning message and gives display and warning device; And send control instruction and give two levelling oil cylinder levelling solenoid control relays about control; Make levelling oil cylinder in the left and right sides to move to the direction that difference in height reduces, the locked direction action that increases to difference in height prevents that harm from taking place or expansion.
The invention has the beneficial effects as follows: avoid because big arm and the screed torsional deformation that when the difference in height of two big arm front ends surpasses safe range, causes can also intuitively show levelling action elevation, remarkable in economical benefits in addition on display screen.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is an electrical control system block diagram of the present invention;
Fig. 2 is a control flow chart of the present invention.
The specific embodiment
As shown in Figure 1; The control method that prevents big arm of paver and screed torsional deformation is on paver draws the levelling oil cylinder piston of big arm, respectively to install one to be used to measure the range sensor of big arm nose motion position; Range sensor connects a controller; Controller connects a display and warning device, and controller connects left and right levelling solenoid control relay.
As shown in Figure 2, the shift length numerical value of big arm front end levelling action about range sensor detects in real time, and send to controller, controller sends operation result through the internal processes computing, the levelling action elevation that shows directly perceived on display screen; Specific as follows:
When the difference in height of two big arm front ends during in safe range, do not send warning message, do not send control instruction and give two levelling oil cylinder levelling solenoid control relays about control;
When the difference in height of two big arm front ends surpasses safe range; Controller sends warning message and gives display and warning device; And send control instruction and give two levelling oil cylinder levelling solenoid control relays about control; Make levelling oil cylinder in the left and right sides to move to the direction that difference in height reduces, the locked direction action that increases to difference in height prevents that harm from taking place or expansion.
Claims (1)
1. control method that prevents big arm of paver and screed torsional deformation; Draw at paver and respectively install one on the levelling oil cylinder piston of big arm and be used to measure the range sensor of big arm nose motion position; Range sensor connects a controller; Controller connects a display and warning device, and controller connects left and right levelling solenoid control relay; It is characterized in that: range sensor with about the shift length numerical value of big arm front end levelling action, be delivered to controller, controller sends operation result through the internal processes computing, the levelling action elevation that shows directly perceived on display screen; Specific as follows:
When the difference in height of two big arm front ends during in safe range, do not send warning message, do not send control instruction and give two levelling oil cylinder levelling solenoid control relays about control;
When the difference in height of two big arm front ends surpasses safe range; Controller sends warning message and gives display and warning device; And send control instruction and give two levelling oil cylinder levelling solenoid control relays about control; Make levelling oil cylinder in the left and right sides to move to the direction that difference in height reduces, the locked direction action that increases to difference in height prevents that harm from taking place or expansion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101504285A CN102677575A (en) | 2012-05-16 | 2012-05-16 | Control method for preventing distortion of big arms and screed of paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101504285A CN102677575A (en) | 2012-05-16 | 2012-05-16 | Control method for preventing distortion of big arms and screed of paver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102677575A true CN102677575A (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101504285A Pending CN102677575A (en) | 2012-05-16 | 2012-05-16 | Control method for preventing distortion of big arms and screed of paver |
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| Country | Link |
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| CN (1) | CN102677575A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563102A (en) * | 2015-12-30 | 2016-05-11 | 广西玉柴机器股份有限公司 | Control method for protrusion height of diesel engine piston |
| CN110565486A (en) * | 2019-09-25 | 2019-12-13 | 三一汽车制造有限公司 | Leveling display system of paver, paver and control method |
| CN111021204A (en) * | 2020-01-02 | 2020-04-17 | 清华大学 | Automatic road paving robot |
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| EP2006448A1 (en) * | 2007-06-21 | 2008-12-24 | Leica Geosystems AG | Paving machine for applying a cover layer made of concrete or asphalt material |
| 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 |
| CN201843059U (en) * | 2010-10-29 | 2011-05-25 | 陕西中大机械集团有限责任公司 | Equal-vibration-distance control system for spreading machine |
| CN102174792A (en) * | 2011-03-22 | 2011-09-07 | 苌安 | Intelligent GPS (global positioning system) elevation and average thickness control system of floated screed plate paver |
| CN102261032A (en) * | 2011-05-04 | 2011-11-30 | 三一重工股份有限公司 | Paver and levelling control device thereof |
| CN102337719A (en) * | 2011-08-03 | 2012-02-01 | 长沙中联重工科技发展股份有限公司 | Paver as well as control method, device and system thereof |
| CN102381354A (en) * | 2011-05-20 | 2012-03-21 | 三一重工股份有限公司 | Paver, pulse counting type walking control system and method for paver |
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2012
- 2012-05-16 CN CN2012101504285A patent/CN102677575A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2006448A1 (en) * | 2007-06-21 | 2008-12-24 | Leica Geosystems AG | Paving machine for applying a cover layer made of concrete or asphalt material |
| 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 |
| CN201843059U (en) * | 2010-10-29 | 2011-05-25 | 陕西中大机械集团有限责任公司 | Equal-vibration-distance control system for spreading machine |
| CN102174792A (en) * | 2011-03-22 | 2011-09-07 | 苌安 | Intelligent GPS (global positioning system) elevation and average thickness control system of floated screed plate paver |
| CN102261032A (en) * | 2011-05-04 | 2011-11-30 | 三一重工股份有限公司 | Paver and levelling control device thereof |
| CN102381354A (en) * | 2011-05-20 | 2012-03-21 | 三一重工股份有限公司 | Paver, pulse counting type walking control system and method for paver |
| CN102337719A (en) * | 2011-08-03 | 2012-02-01 | 长沙中联重工科技发展股份有限公司 | Paver as well as control method, device and system thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563102A (en) * | 2015-12-30 | 2016-05-11 | 广西玉柴机器股份有限公司 | Control method for protrusion height of diesel engine piston |
| CN110565486A (en) * | 2019-09-25 | 2019-12-13 | 三一汽车制造有限公司 | Leveling display system of paver, paver and control method |
| CN111021204A (en) * | 2020-01-02 | 2020-04-17 | 清华大学 | Automatic road paving robot |
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Application publication date: 20120919 |