CN203320382U - Electro-hydraulic proportional control system for extra-heavy type single-steel-wheel vibrating road roller - Google Patents
Electro-hydraulic proportional control system for extra-heavy type single-steel-wheel vibrating road roller Download PDFInfo
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- CN203320382U CN203320382U CN201320223993XU CN201320223993U CN203320382U CN 203320382 U CN203320382 U CN 203320382U CN 201320223993X U CN201320223993X U CN 201320223993XU CN 201320223993 U CN201320223993 U CN 201320223993U CN 203320382 U CN203320382 U CN 203320382U
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- road roller
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Abstract
or an extra-heavy type single-steel-wheel vibrating road roller. The electro-hor an extra-heavy type single-steel-wheel vibrating road roller. The electro-hydraulic proportional control system comprises a controller, an information collection device, a command device and a hydraulic element for controlling the action of each executing mechanism, wherein the controller is electrically connected with the information collection device, the command device and the hydraulic element; the controller is used for acquiring working state information and working commands of the road roller through the information collection device and the command device and controlling the hydraulic element to work according to the information and the commands; the hydraulic element comprises a walking pump, a walking motor, an electro-hydraulic proportional directional valve, a vibrating pump, a vibrating motor and an electro-hydraulic proportional directional valve; the walking pump and the walking motor are used for controlling a walking executing mechanism and are controlled by the electro-hydraulic proportional directional valve, the vibrating pump and the vibrating motor are used for controlling a steel wheel vibrating executing mechanism and are controlled by the electro-hydraulic proportional directional valve, and the walking pump and the vibrating pump are volume-adjustable hydraulic pumps. The electro-hydraulic proportional control system for the extra-heavy type single-steel-wheel vibrating road roller, disclosed by the utility model, is moderate in economic cost and high in control precision.
Description
Technical field
The utility model relates to the road roller technical field, relates in particular to a kind of electro-hydraulic proportional control system of superduty single vibratory road roller.
Background technology
Road roller belongs to the category of pavement construction machinery in engineering machinery, according to walking manner, can be divided into self-propelled roller and towed roller.The drive system of self-propelled roller has the various ways such as Mechanical Driven, hydraulic-driven, and hydraulic-driven is the popular tendency of road roller working system.The systems such as the general Organic Electricity control of the control system of all-hydraulic self-walking single vibratory road roller, electrichydraulic control, these control systems are all to adopt the switch valve technology, the processing of its action is realized by machinery or relay usually.In existing switching mode electrohydraulic system, the conversion of direction, the variation of hydraulic parameter pressure versus flow, all to realize by electromagnetic signal, this variation great majority are the variation of sudden change formula, and what follow generation is reversing impact and pressure peak, often causes wearing and tearing in advance and the damage of device.Particularly for the superduty single vibratory road roller, increase along with work quality, the vibrator eccentricity increases, hydraulic system working pressure increases, its reversing impact and pressure peak are even more serious to the extent of damage of device, impact excessively, the compacting operation quality of vibratory roller is difficult to reach construction process requirement simultaneously.Superduty single vibratory road roller deadweight is all larger, in operation process, occurs continually travelling, the change of vibrational state.Large mass objects certainly leads to very large inertia load in this state change process, bring excessive transient load to transmission system, it is to increase the engine power deposit that tradition solves the excessive method of vibratory roller inertia load, to improve the overall dynamics characteristic of system, meet the job requirement of instantaneous large load.But a large amount of power affluences will occur after system stability work, thereby cause larger power dissipation, greatly increase manufacturing cost and the use cost of superduty single vibratory road roller.
Therefore, providing the electro-hydraulic proportional control system of the superduty single vibratory road roller that a kind of financial cost is moderate and control accuracy is high is the technical problem that those skilled in the art need solution badly.
The utility model content
The purpose of this utility model is to provide the electro-hydraulic proportional control system of the superduty single vibratory road roller that a kind of financial cost is moderate and control accuracy is high.
To achieve these goals, the utility model provides a kind of electro-hydraulic proportional control system of superduty single vibratory road roller, comprise controller, information collecting device, the Hydraulic Elements of each executing agency's action of command device and control, described controller and described information collecting device, described command device, described Hydraulic Elements are electrically connected to, described controller obtains road roller working status information and work order by described information collecting device and described command device, and control described Hydraulic Elements work according to this information and instruction, described Hydraulic Elements comprise the traveling pump of controlling walking executing agency, running motor and control both electro-hydraulic proportion reversing valves and control the oscillating column pump of steel wheeled vibratory executing agency, vibrating motor and control both electro-hydraulic proportion reversing valve, wherein, described traveling pump, described oscillating column pump is volume adjustable hydraulic pump.
Preferably, also comprise display unit, described display unit is electrically connected to described controller, described display unit shows in visual form the duty of running parameter and the associated components of road roller, the running parameter of road roller can be set and adjust by described display unit, and/or select the mode of operation of road roller.
Preferably, described information collecting device comprises the velocity sensor that is arranged in chassis of road roller vehicle bridge place test road roller form speed, is arranged in the velocity sensor of the described vibrating motor rotating speed of test on described vibrating motor and is arranged in rotation speed monitoring sensor, engine oil pressure pickup and the cooling-water temperature sensor of monitoring engine working conditions on motor.
Preferably, described command device comprise the joystick that travels of controlling road roller forward/backward direction, road roller travel speed selector switch, frequency selective switch and the compacting/walking mode of operation selector switch of vibration frequency while controlling compacting operation.
Preferably, described controller carries out, after the programmed logic contrast, this instruction and information are sent to described display unit to instruction and the information of described information collecting device and the transmission of described command device, thereby and controls described Hydraulic Elements according to this instruction and information and control the action of relevant executing agency.
Compared with prior art, the electro-hydraulic proportional control system of superduty single vibratory road roller provided by the utility model, the employing electric-hydraulic proportion is controlled, adjust hydraulic parameter by the signal of telecommunication of input, make it continuous proportional variation, the step-less adjustment of realization to road roller hydraulic system pressure, flow and direction, thus realized that various motions are carried out fast to road roller, stable and accurate control; The closed-loop control of road roller walking and vibratory hydraulic system, while being the vibratory compaction operation, only when road roller reaches certain travel speed, the signal feedback that velocity sensor is tested is controlled and is opened vibration executing agency to controller, road roller starts vibration, load peak when thereby the load peak while effectively having staggered road roller walking starting starts with vibration is overlapping, and the motor that has reduced road roller uses power, has reduced the financial cost of road roller and has had energy-conservation effect; The interlock that road roller front-wheel, rear wheel drive are controlled, when road roller front-wheel or trailing wheel occur that adhesive power is not enough and while skidding, velocity sensor on the front and rear wheel CD-ROM drive motor feeds back to controller by detecting information, controller is adjusted the speed of front-wheel or trailing wheel automatically, to reach the optimal drive effect, effectively improved the rideability of road roller and improved climbing capacity; Can connect the testing equipments such as degree of compaction tester, acceleration test instrument, the construction compaction quality of Real-Time Monitoring road roller, for the platform that provides the foundation is controlled in the intellectuality that realizes road roller.
In sum, the electro-hydraulic proportional control system of superduty single vibratory road roller provided by the utility model, realized that various motions are carried out fast to road roller, stable and accurate control, the motor that has reduced road roller uses power, has reduced the financial cost of road roller and has had energy-conservation effect; Effectively improved the rideability of road roller and improved climbing capacity, and being that the platform that provides the foundation is controlled in the intellectuality that realizes road roller.
The accompanying drawing explanation
Fig. 1 is the structured flowchart of a kind of embodiment of the electro-hydraulic proportional control system of a kind of superduty single vibratory road roller that the utility model proposes;
Fig. 2 is control flow chart in the course of work of a kind of embodiment of electro-hydraulic proportional control system of a kind of superduty single vibratory road roller that the utility model proposes.
The specific embodiment
The purpose of this utility model is to provide the electro-hydraulic proportional control system of the superduty single vibratory road roller that a kind of financial cost is moderate and control accuracy is high.
In order to make those skilled in the art understand better the technical solution of the utility model; below in conjunction with accompanying drawing, the utility model is described in detail; the description of this part is only exemplary and explanatory, should any restriction not arranged to protection domain of the present utility model.
Please refer to Fig. 1 and in conjunction with Fig. 2, in one embodiment, the electro-hydraulic proportional control system of a kind of superduty single vibratory road roller provided by the utility model, comprise controller 1, display unit 3, information collecting device 4, the Hydraulic Elements 2 of each executing agency's action of command device 5 and control, controller 1 and information collecting device 4, command device 5, Hydraulic Elements 2, display unit 3 is electrically connected to, controller 1 obtains road roller working status information and work order by information collecting device 4 and command device 5, and control Hydraulic Elements 2 work according to this information and instruction, Hydraulic Elements 2 comprise the traveling pump of controlling walking executing agency, running motor and control both electro-hydraulic proportion reversing valves and control the oscillating column pump of steel wheeled vibratory executing agency, vibrating motor and control both electro-hydraulic proportion reversing valve, display unit 3 shows in visual form the duty of running parameter and the associated components of road roller, can arrange and adjust the running parameter of road roller and the mode of operation of selecting road roller by display unit 3, instruction and information that 1 pair of information collecting device 4 of controller and command device 5 send carry out, after the programmed logic contrast, this instruction and information are sent to display unit 3, thereby and control Hydraulic Elements 2 according to this instruction and information and control the action of relevant executing agency, wherein, traveling pump, oscillating column pump is volume adjustable hydraulic pump, information collecting device 4 comprises the velocity sensor that is arranged in chassis of road roller vehicle bridge place test road roller form speed, be arranged in the velocity sensor of test vibration motor rotary speed on vibrating motor and be arranged in the rotation speed monitoring sensor of monitoring engine working conditions on motor, engine oil pressure pickup and cooling-water temperature sensor, command device 5 comprises the joystick that travels of controlling road roller forward/backward direction, road roller travel speed selector switch, frequency selective switch and the compacting/walking mode of operation selector switch of vibration frequency while controlling compacting operation.
The electro-hydraulic proportional control system of the superduty single vibratory road roller that the present embodiment provides, in its course of work, control model is as follows: when the operator selects " compacting " by compacting/walking mode of operation selector switch, road roller enters the speed of travel of compacting operating mode and selects, select its vibration frequency by frequency selective switch simultaneously, then, after controlling control crank selection travel direction by forward/backward, vibration hydraulic system and vibratory hydraulic system enter startup.In this process, at first controller 1 starts vibration hydraulic system by setting program, road roller starts to travel, the velocity sensor be arranged on running motor imports test data into controller 1, controller 1 is by the setting program data are compared, and when travel speed reaches setting value, vibratory hydraulic system starts, vibrator produces vibration, road roller compacting operation.Due to the associated control of controller 1 setting program to vibration hydraulic system and vibratory hydraulic system, effectively guaranteed that vibratory hydraulic system started in the best time, walking and the starting power peak value of vibration two systems are staggered.
The electro-hydraulic proportional control system of the superduty single vibratory road roller that the present embodiment provides, the employing electric-hydraulic proportion is controlled, adjust hydraulic parameter by the signal of telecommunication of input, make it continuous proportional variation, the step-less adjustment of realization to road roller hydraulic system pressure, flow and direction, thus realized that various motions are carried out fast to road roller, stable and accurate control; The closed-loop control of road roller walking and vibratory hydraulic system, while being the vibratory compaction operation, only when road roller reaches certain travel speed, the signal feedback that velocity sensor is tested is controlled and is opened vibration executing agency to controller 1, road roller starts vibration, load peak when thereby the load peak while effectively having staggered road roller walking starting starts with vibration is overlapping, and the motor that has reduced road roller uses power, has reduced the financial cost of road roller and has had energy-conservation effect; The interlock that road roller front-wheel, rear wheel drive are controlled, when road roller front-wheel or trailing wheel occur that adhesive power is not enough and while skidding, velocity sensor on the front and rear wheel CD-ROM drive motor feeds back to controller 1 by detecting information, controller 1 is adjusted the speed of front-wheel or trailing wheel automatically, to reach the optimal drive effect, effectively improved the rideability of road roller and improved climbing capacity; Can connect the testing equipments such as degree of compaction tester, acceleration test instrument, the construction compaction quality of Real-Time Monitoring road roller, for the platform that provides the foundation is controlled in the intellectuality that realizes road roller.
Therefore, the electro-hydraulic proportional control system of above-mentioned superduty single vibratory road roller, realized that various motions are carried out fast to road roller, stable and accurate control, the motor that has reduced road roller uses power, has reduced the financial cost of road roller and has had energy-conservation effect; Effectively improved the rideability of road roller and improved climbing capacity, and being that the platform that provides the foundation is controlled in the intellectuality that realizes road roller.
It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make the process, method, article or the equipment that comprise a series of key elements not only comprise which key element, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, article or equipment.In the situation that not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises key element and also have other identical element.
Applied specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof.The above is only preferred embodiment of the present utility model, should be understood that, finiteness due to literal expression, and objectively there is unlimited concrete structure, for those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also make some improvement, retouching or variation, also above-mentioned technical characterictic can be combined by rights; These improve retouching, change or combination, or without improving, the design of utility model and technical scheme are directly applied to other occasion, all should be considered as protection domain of the present utility model.
Claims (5)
1. the electro-hydraulic proportional control system of a superduty single vibratory road roller, comprise controller, information collecting device, the Hydraulic Elements of each executing agency's action of command device and control, described controller and described information collecting device, described command device, described Hydraulic Elements are electrically connected to, described controller obtains road roller working status information and work order by described information collecting device and described command device, and control described Hydraulic Elements work according to this information and instruction, it is characterized in that, described Hydraulic Elements comprise the traveling pump of controlling walking executing agency, running motor and control both electro-hydraulic proportion reversing valves and control the oscillating column pump of steel wheeled vibratory executing agency, vibrating motor and control both electro-hydraulic proportion reversing valve, wherein, described traveling pump, described oscillating column pump is volume adjustable hydraulic pump.
2. the electro-hydraulic proportional control system of superduty single vibratory road roller according to claim 1, it is characterized in that, also comprise display unit, described display unit is electrically connected to described controller, described display unit shows in visual form the duty of running parameter and the associated components of road roller, the running parameter of road roller can be set and adjust by described display unit, and/or select the mode of operation of road roller.
3. the electro-hydraulic proportional control system of superduty single vibratory road roller according to claim 2, it is characterized in that, described information collecting device comprises the velocity sensor that is arranged in chassis of road roller vehicle bridge place test road roller form speed, be arranged in the velocity sensor of the described vibrating motor rotating speed of test on described vibrating motor and be arranged in rotation speed monitoring sensor, engine oil pressure pickup and the cooling-water temperature sensor of monitoring engine working conditions on motor.
4. the electro-hydraulic proportional control system of superduty single vibratory road roller according to claim 2, it is characterized in that, described command device comprises the joystick that travels of controlling road roller forward/backward direction, road roller travel speed selector switch, frequency selective switch and the compacting/walking mode of operation selector switch of vibration frequency while controlling compacting operation.
5. the electro-hydraulic proportional control system of superduty single vibratory road roller according to claim 2, it is characterized in that, described controller carries out, after the programmed logic contrast, this instruction and information are sent to described display unit to instruction and the information of described information collecting device and the transmission of described command device, thereby and controls described Hydraulic Elements according to this instruction and information and control the action of relevant executing agency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320223993XU CN203320382U (en) | 2013-04-16 | 2013-04-16 | Electro-hydraulic proportional control system for extra-heavy type single-steel-wheel vibrating road roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320223993XU CN203320382U (en) | 2013-04-16 | 2013-04-16 | Electro-hydraulic proportional control system for extra-heavy type single-steel-wheel vibrating road roller |
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| CN203320382U true CN203320382U (en) | 2013-12-04 |
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| CN201320223993XU Expired - Fee Related CN203320382U (en) | 2013-04-16 | 2013-04-16 | Electro-hydraulic proportional control system for extra-heavy type single-steel-wheel vibrating road roller |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669178A (en) * | 2013-12-05 | 2014-03-26 | 柳工无锡路面机械有限公司 | Open type vibration electric proportional control system of road roller |
| CN109183568A (en) * | 2018-08-28 | 2019-01-11 | 柳工无锡路面机械有限公司 | A kind of novel energy-conserving road roller power matching system |
| CN110009891A (en) * | 2019-05-07 | 2019-07-12 | 杨康明 | A kind of external hydraulic proportional remote control system of engineering truck manipulation |
| CN111749084A (en) * | 2020-06-28 | 2020-10-09 | 三一汽车制造有限公司 | Control method of road roller and road roller |
| CN114575219A (en) * | 2022-03-18 | 2022-06-03 | 山东临工工程机械有限公司 | Energy-saving control system of vibratory roller and control method thereof |
-
2013
- 2013-04-16 CN CN201320223993XU patent/CN203320382U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669178A (en) * | 2013-12-05 | 2014-03-26 | 柳工无锡路面机械有限公司 | Open type vibration electric proportional control system of road roller |
| CN109183568A (en) * | 2018-08-28 | 2019-01-11 | 柳工无锡路面机械有限公司 | A kind of novel energy-conserving road roller power matching system |
| CN109183568B (en) * | 2018-08-28 | 2021-01-12 | 柳工无锡路面机械有限公司 | Novel energy-saving road roller power matching system |
| CN110009891A (en) * | 2019-05-07 | 2019-07-12 | 杨康明 | A kind of external hydraulic proportional remote control system of engineering truck manipulation |
| CN111749084A (en) * | 2020-06-28 | 2020-10-09 | 三一汽车制造有限公司 | Control method of road roller and road roller |
| CN114575219A (en) * | 2022-03-18 | 2022-06-03 | 山东临工工程机械有限公司 | Energy-saving control system of vibratory roller and control method thereof |
| CN114575219B (en) * | 2022-03-18 | 2023-09-22 | 山东临工工程机械有限公司 | Energy-saving control system of vibratory roller and control method thereof |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20180416 |