CN103255698A - Anti-slipping front wheel driving control system for tire type paver - Google Patents
Anti-slipping front wheel driving control system for tire type paver Download PDFInfo
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- CN103255698A CN103255698A CN2013101334289A CN201310133428A CN103255698A CN 103255698 A CN103255698 A CN 103255698A CN 2013101334289 A CN2013101334289 A CN 2013101334289A CN 201310133428 A CN201310133428 A CN 201310133428A CN 103255698 A CN103255698 A CN 103255698A
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Abstract
The invention provides an anti-slipping front wheel driving control system for a tire type paver. The anti-slipping front wheel driving control system is characterized by mainly comprising a controller and a rear wheel speed sensor, wherein the controller is used for detecting a signal output by a knob/pedal and the rear wheel walking speed, carrying out selective processing on an input signal according to an instruction of a functional switch, outputting a working state instruction for controlling a front wheel walking pump and a rear wheel walking pump, and controlling the displacements of the front wheel walking pump and the rear wheel walking pump; the rear wheel speed sensor is used for feeding the rear wheel walking speed back to the controller; and the speed of a front wheel is controlled to be higher than that of a rear wheel under the condition that the front wheel drives the paver in an auxiliary manner. The anti-slipping front wheel driving control system has the advantage of being designed aiming at an actual condition when the paver slips; the rear wheel is controlled by a closed ring and the driving speed is stabilized; the speed of the front wheel is slightly 3-5% higher than that of the rear wheel, so as to realize an auxiliary driving effect; the anti-slipping front wheel driving control system is simple and reliable and low in cost, and saves power; and the matched driving is carried out by the front wheel according to the speed of the rear wheel, the simple control can well realize the condition of auxiliary driving by the front wheel and the rear wheel can be effectively prevented from being slipped.
Description
Technical field
The front-wheel drive control system that relates to the rubber-tyred paver of the present invention particularly relates to a kind of front-wheel drive control system for rubber-tyred paver anti-slip.
Background technology
In the prior art, the front-wheel drive hydraulic circuit of rubber-tyred paver comprises fuel tank, constant pressure variable displacement pump, front-wheel driving motors, two logical control valves.Fuel tank connects respectively at constant pressure variable displacement pump, front-wheel driving motors, UNICOM's control valve, constant pressure variable displacement pump is connected with front-wheel driving motors in parallel, one section control port through constant pressure variable displacement pump of electricity proportional control overflow valve is connected with constant pressure variable displacement pump, and the other end is connected with fuel tank.Wherein, rubber-tyred paver front-wheel assistive drive is controlled electric proportional pressure control valve by the pressure sensor that is assemblied on the trailing wheel of the left and right sides, thereby changes the pressure of constant pressure variable displacement pump output, makes front-wheel auxiliary drive motor moment of torsion change.Yet, because load variations is frequent in the actual condition, the friction factor on paver trailing wheel and ground exists bigger different, therefore often cause rear wheels slip, in case rear wheels slip then trailing wheel pressure sensor output signal will diminish or not have, the front-wheel assistive drive has not just had, and should play effect thereby lost the front-wheel assistive drive, and the machine band carries ability to work and will descend.The automatically controlled automatic driving of the front-wheel drive of rubber-tyred paver loop is by 4 tachogenerator monitoring travel speeds, by 2 angular transducer monitoring nose wheel angle, by realizations such as 2 pressure sensor monitoring load pressures control automatically.Yet this design cost is higher, and control is opened constantly automatically, and is higher from the frequency that free opinion switches to driving wheel front-wheel, the front-wheel motor life is caused have a strong impact on.
Summary of the invention
Purpose of the present invention just provides a kind of actual condition design when skidding at paver, simple and reliable, cost is lower, save power, and front-wheel drive is to mate driving according to trailing wheel speed, simple control is the fine realization front-wheel assistive drive of energy just, effectively prevents the front-wheel drive control system that is used for rubber-tyred paver anti-slip of rear wheels slip.
Solution of the present invention is such: the present invention mainly comprises:
Controller is used for the signal that knob/pedal output is handled in identification, according to the instruction of functional switch, the signal of input is selected to handle the duty instruction of output control front-wheel traveling pump, trailing wheel traveling pump;
Trailing wheel velocity sensor: for detection of the trailing wheel speed of travel and feed back to controller.
Technical scheme also comprises more specifically: described functional switch comprises:
Limit switch: the output limit signal, limiting controller reception knob signal still is that pedal signal is as given signal.
The front-wheel enable switch: output front-wheel working signal, limit controller and export the walking work order of control front-wheel and trailing wheel walking work order simultaneously, realize front-wheel assistive drive paver.
Further: controller is after detecting described front-wheel enable switch signal, make from knob and read given signal judgment, the trailing wheel speed of travel that the front-wheel of output control simultaneously traveling pump, the work order of trailing wheel traveling pump and inbound pacing sensor detect, through relatively calculate adjusting the two-way output current, make front-wheel walking pump delivery greater than the trailing wheel pump delivery of walking by controller.
Further: after controller detects described limit switch signal, make from pedal and read given signal judgment, output control trailing wheel traveling pump work order is also controlled trailing wheel walking pump delivery, and the trailing wheel speed of travel of inbound pacing sensor detection, adjust output current control trailing wheel traveling pump as calculated.
Further: described controller according to the setting of front-wheel walking pump delivery greater than trailing wheel walking pump delivery, limits front-wheel speed than the fast 3%-5% of trailing wheel speed when calculating the two-way output current.
Advantage of the present invention is that actual condition designs when skidding at paver, trailing wheel adopts closed-loop control, stablize travel speed, front-wheel speed realizes the assistive drive effect slightly than the little fast 3-5% of trailing wheel speed, simple and reliable, cost is lower, save power, and front-wheel drive is to mate driving according to trailing wheel speed, simple control is the fine realization front-wheel assistive drive of energy just, effectively prevents rear wheels slip.
Description of drawings
Accompanying drawing is embodiments of the invention.
Accompanying drawing 1 is structured flowchart of the present invention.
The specific embodiment
The present invention mainly comprises:
Controller is used for the signal that knob/pedal output is handled in identification, according to the instruction of functional switch, the signal of input is selected to handle the duty instruction of output control front-wheel traveling pump, trailing wheel traveling pump;
Trailing wheel velocity sensor: for detection of the trailing wheel speed of travel and feed back to controller.
Described functional switch comprises:
Limit switch: the output limit signal, limiting controller reception knob signal still is that pedal signal is as given signal.
The front-wheel enable switch: output front-wheel working signal, limit controller and export the walking work order of control front-wheel and trailing wheel walking work order simultaneously, realize front-wheel assistive drive paver.
Controller is after detecting described front-wheel enable switch signal, make from knob and read given signal judgment, the trailing wheel speed of travel that the front-wheel of output control simultaneously traveling pump, the work order of trailing wheel traveling pump and inbound pacing sensor detect, through relatively calculate adjusting the two-way output current, make front-wheel walking pump delivery greater than the trailing wheel pump delivery of walking by controller.
After controller detects described limit switch signal, make from pedal and read given signal judgment, the trailing wheel speed of travel that the front-wheel of output control simultaneously traveling pump, the work order of trailing wheel traveling pump and inbound pacing sensor detect, through relatively calculate adjusting the two-way output current, make front-wheel walking pump delivery greater than the trailing wheel pump delivery of walking by controller.
According to the embodiment of the invention shown in Figure 1, the signal that adopts knob and pedal to export is connected to the mode of controller simultaneously, and its work operating mode comprises:
1, driving cycle:
Driving cycle, this operating mode can not be enabled the front-wheel assistive drive, limit switch output limit signal, after controller receives the limit signal of limit switch, according to the mode of setting, make from pedal and read given signal judgment, only read the pedal output signal, output control trailing wheel walking work order is also controlled trailing wheel walking pump delivery, and the trailing wheel speed of travel that velocity sensor is detected feeds back to controller, via controller calculates output current control trailing wheel traveling pump, the front-wheel freewheel state adjusted.
2, the work operating mode that paves:
2.1, work and not enabled front-wheel assistive drive operating mode pave, the not defeated signal of front-wheel enable switch limit switch is not simultaneously exported limit signal, this moment, controller was according to the mode of setting, make from knob and read given signal judgment, only read the knob output signal, trailing wheel walking pump delivery is also controlled in output control trailing wheel walking work order, and the trailing wheel speed of travel of velocity sensor detection is fed back to controller, and via controller calculates adjusts output current control trailing wheel traveling pump.
2.2, the work that paves also needs to open front-wheel assistive drive operating mode, front-wheel enable switch output front-wheel working signal and limit switch are not exported limit signal, controller is made from knob and is read given signal judgment, read the knob output signal, simultaneously to the front-wheel traveling pump, the trailing wheel speed of travel that the instruction of trailing wheel traveling pump output services and inbound pacing sensor detect, adjust the two-way output current by controller through relatively calculating, make front-wheel walking pump delivery greater than the trailing wheel pump delivery of walking, present embodiment limits front-wheel speed than the fast 3%-5% of trailing wheel speed, guarantee that front-wheel speed is faster than trailing wheel speed, realize front-wheel assistive drive paver.
Claims (5)
1. front-wheel drive control system that is used for rubber-tyred paver anti-slip is characterized in that: mainly comprise:
Controller is used for the signal that knob/pedal output is handled in identification, according to the instruction of functional switch, the signal of input is selected to handle the duty instruction of output control front-wheel traveling pump, trailing wheel traveling pump;
Trailing wheel velocity sensor: for detection of the trailing wheel speed of travel and feed back to controller.
2. the front-wheel drive control system for rubber-tyred paver anti-slip according to claim 1, it is characterized in that: described functional switch comprises:
Limit switch: the output limit signal, limiting controller reception knob signal still is that pedal signal is as given signal;
The front-wheel enable switch: output front-wheel working signal, limit controller and export the walking work order of control front-wheel and trailing wheel walking work order simultaneously, realize front-wheel assistive drive paver.
3. the front-wheel drive control system for rubber-tyred paver anti-slip according to claim 2, it is characterized in that: controller is after detecting described front-wheel enable switch signal, make from knob and read given signal judgment, the trailing wheel speed of travel that the front-wheel of output control simultaneously traveling pump, the work order of trailing wheel traveling pump and inbound pacing sensor detect, through relatively calculate adjusting the two-way output current, make front-wheel walking pump delivery greater than the trailing wheel pump delivery of walking by controller.
4. the front-wheel drive control system for rubber-tyred paver anti-slip according to claim 2, it is characterized in that: after controller detects described limit switch signal, make from pedal and read given signal judgment, output control trailing wheel traveling pump work order is also controlled trailing wheel walking pump delivery, and the trailing wheel speed of travel that velocity sensor is detected feeds back to controller, via controller calculating adjustment output current control trailing wheel traveling pump.
5. according to claim 1,2,3,4 described front-wheel drive control systems for rubber-tyred paver anti-slip, it is characterized in that: described controller is when calculating the two-way output current, according to the setting of front-wheel walking pump delivery greater than trailing wheel walking pump delivery, limit front-wheel speed than the fast 3%-5% of trailing wheel speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310133428.9A CN103255698B (en) | 2013-04-17 | 2013-04-17 | For the front-wheel drive control system of rubber-tyred paver anti-slip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310133428.9A CN103255698B (en) | 2013-04-17 | 2013-04-17 | For the front-wheel drive control system of rubber-tyred paver anti-slip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103255698A true CN103255698A (en) | 2013-08-21 |
| CN103255698B CN103255698B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310133428.9A Expired - Fee Related CN103255698B (en) | 2013-04-17 | 2013-04-17 | For the front-wheel drive control system of rubber-tyred paver anti-slip |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594161A (en) * | 2014-11-28 | 2015-05-06 | 山推工程机械股份有限公司 | Tire spreader and walking control system thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06211072A (en) * | 1991-06-25 | 1994-08-02 | Nec Home Electron Ltd | Driving-braking control device for vehicle |
| JPH06250735A (en) * | 1993-02-22 | 1994-09-09 | Shinko Electric Co Ltd | Steering speed controller for unmanned carriage |
| CN101696563A (en) * | 2009-11-10 | 2010-04-21 | 三一重工股份有限公司 | Front wheel driving control system and method of rubber-tyred paver and rubber-tyred paver |
| CN202064262U (en) * | 2011-04-25 | 2011-12-07 | 江阴市通联电液控制技术有限公司 | Walking and vibration control system for spreading machine |
| CN202440745U (en) * | 2012-02-23 | 2012-09-19 | 三一重工股份有限公司 | Wheel type paver lifting device and wheel type paver |
-
2013
- 2013-04-17 CN CN201310133428.9A patent/CN103255698B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06211072A (en) * | 1991-06-25 | 1994-08-02 | Nec Home Electron Ltd | Driving-braking control device for vehicle |
| JPH06250735A (en) * | 1993-02-22 | 1994-09-09 | Shinko Electric Co Ltd | Steering speed controller for unmanned carriage |
| CN101696563A (en) * | 2009-11-10 | 2010-04-21 | 三一重工股份有限公司 | Front wheel driving control system and method of rubber-tyred paver and rubber-tyred paver |
| CN202064262U (en) * | 2011-04-25 | 2011-12-07 | 江阴市通联电液控制技术有限公司 | Walking and vibration control system for spreading machine |
| CN202440745U (en) * | 2012-02-23 | 2012-09-19 | 三一重工股份有限公司 | Wheel type paver lifting device and wheel type paver |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594161A (en) * | 2014-11-28 | 2015-05-06 | 山推工程机械股份有限公司 | Tire spreader and walking control system thereof |
| CN104594161B (en) * | 2014-11-28 | 2016-09-14 | 山推工程机械股份有限公司 | Tire paver and traveling control system thereof |
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| Publication number | Publication date |
|---|---|
| CN103255698B (en) | 2015-10-28 |
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