CN101644067A - Proportional dual-handle control system of grader - Google Patents
Proportional dual-handle control system of grader Download PDFInfo
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- CN101644067A CN101644067A CN200910070248A CN200910070248A CN101644067A CN 101644067 A CN101644067 A CN 101644067A CN 200910070248 A CN200910070248 A CN 200910070248A CN 200910070248 A CN200910070248 A CN 200910070248A CN 101644067 A CN101644067 A CN 101644067A
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Abstract
The invention relates to a proportional dual-handle control system of a grader. The proportional dual-handle control system of the grader belongs to the technical field of graders. The proportional dual-handle control system of the grader comprises control handles, and the control handles are connected with electromagnetic valves. The proportional dual-handle control system is characterized in that the control system comprises a controller, two handles and an electromagnetic valve group, wherein, the controller is connected with the two handles and the electromagnetic valve group, the electromagnetic valve group comprises a selection electromagnetic valve and a proportional electromagnetic valve, and the two handles are respectively connected with the selection electromagnetic valve. The proportional dual-handle control system of the grader has the advantages of simple structure, composite control, convenient layout of valve bodies and a pipeline, effort-saving and comfortable operation, low labor intensity, low requirements on operation level of a driver, high operation efficiency of the grader and the like.
Description
Technical field
The invention belongs to the land leveller technical field, particularly relate to a kind of proportional dual-handle control system of grader.
Background technology
At present, land leveller is one of construction machinery general and the most commonly used in earthwork construction, the road construction project, is mainly used to carry out the smooth of place, road.Land leveller is in operation process, the locus that needs often to adjust the level land perching knife comprise the perching knife horizontal rotation, about draw, left and right sides lifting, the adjustment of perching knife cutting angle and tilt adjustments, also to adjust front-wheel inclination, articulation steering, preceding ejector dozer and rear portion ridge buster simultaneously.Usually, all these of land leveller are adjusted control, all be to adopt the manual reverse of direction hydraulic valve to control corresponding hydraulic cylinder or hydraulic motor is realized, so land leveller driver the place ahead left and right sides respectively are furnished with 5 operating grips, amount to 10 operating grips.
Drive land leveller, the driver is except control steering wheel for vehicle, throttle, braking, various illumination, indicator lamp etc., also need to operate 10 hydraulic valve operating grips, operative skill for the driver is had relatively high expectations, driver's operation labour intensity compares higher, and the probability of operate miss is also greater than the similar construction machinery of majority.
Summary of the invention
The present invention provides a kind of proportional dual-handle control system of grader for solving the problem that prior art exists.
The object of the invention provides a kind ofly to be had simple in structurely, and compound control makes things convenient for valve body, line arrangement, rapid operation, comfortable, and labour intensity is low, and the driver operation level requires low, the proportional dual-handle control system of grader of characteristics such as land leveller operating efficiency height.
System of the present invention is used for the equipment control of land leveller, adopts electric ratio electro hydraulic valve group, electric handle and controller, replaces traditional hand-hydraulic valve group and operating grip.Utilize the special-purpose control program of controller, 2 electric handles of driver's operation can be realized the adjustment control of 10 kinds of functions of land leveller, and realize the Synchronization Control of partial function.
The composition of native system comprises 1 controller and 2 sleeving valve group and joysticks, and every sleeving valve group and joystick comprise: simply connected electricity proportional reversing valve, 4 automatically controlled selector valves, 1 electronic operation handle.According to location status and each button different conditions of electronic operation handle, single electronic operation handle can be operated 5 different workpieces by controller; And, press compound button, functional part (as left side perching knife hoist cylinder and right side perching knife hoist cylinder) action that can the appointment of the simultaneously operating left and right sides.System adopts 2 operating grips to replace the function of original 10 operating grips, simplifies the operation, and reduces driver's operation labour intensity.
Proportional dual-handle control system of grader of the present invention adopts following technical scheme:
Proportional dual-handle control system of grader, comprise joystick, joystick connects electromagnetic valve, be characterized in: control system has controller, dual-handle and electromagnetic valve group, controller connects dual-handle and electromagnetic valve group, electromagnetic valve group has the electromagnetic valve of selection and proportion magnetic valve, and dual-handle connects the selection electromagnetic valve respectively.
Proportional dual-handle control system of grader of the present invention can also adopt following technical measures:
Described proportional dual-handle control system of grader is characterized in: dual-handle is left handle and right handles, and left handle or right handles are provided with compound control button.
Described proportional dual-handle control system of grader is characterized in: dual-handle is provided with perching knife, front-wheel, turns to, ejector dozer action electronic selection control button.
Described proportional dual-handle control system of grader is characterized in: the left handle of dual-handle or right handles electronic selection control button connect solenoid control left side or right side workpiece by controller respectively.
Described proportional dual-handle control system of grader is characterized in: selecting electromagnetic valve is 4 automatically controlled selector valves, and proportion magnetic valve is a simply connected electricity proportional reversing valve.
Advantage that the present invention has and good effect:
Proportional dual-handle control system of grader owing to adopt brand-new technology scheme of the present invention, therefore, has following characteristics:
1. rapid operation, easy reduces operation labour intensity.
2. the raising operation comfort reduces driver's labour intensity, promotes competitiveness of product.
3. can realize the compound control function of land leveller workpiece, further improve operating efficiency.
4. full electro hydraulic valve makes things convenient for valve body, line arrangement.
Description of drawings
Fig. 1 is proportional dual-handle control system of grader hydraulic principle and automatically controlled structural representation;
Fig. 2 is a control system theory structure schematic block diagram;
Fig. 3 is a control flow theory structure schematic block diagram.
Among the figure, the automatically controlled selector valve of 1-, the automatically controlled selector valve of 2-, the automatically controlled selector valve of 3-, the automatically controlled selector valve of 4-, 5-electricity proportional reversing valve, the 6-electromagnetic valve, 7-electricity proportional reversing valve, the automatically controlled selector valve of 8-, the automatically controlled selector valve of 9-, the automatically controlled selector valve of 10-, the automatically controlled selector valve of 11-, the 12-handle, the 13-handle, 14-gear pump, 15-controller.
The specific embodiment
For further understanding technology contents of the present invention, characteristics and effect, enumerate following example now, and conjunction with figs. is described in detail as follows:
With reference to accompanying drawing 1, Fig. 2 and Fig. 3.
Embodiment 1
Proportional dual-handle control system of grader has controller, dual-handle and electromagnetic valve group, and controller connects dual-handle and electromagnetic valve group, and electromagnetic valve group has the electromagnetic valve of selection and proportion magnetic valve, and dual-handle connects the selection electromagnetic valve respectively.Selecting electromagnetic valve is 4 automatically controlled selector valves, and proportion magnetic valve is a simply connected electricity proportional reversing valve.
Dual-handle is left handle and right handles, and left handle or right handles are provided with compound control button and perching knife, front-wheel, turn to, ejector dozer action electronic selection control button.Left handle or right handles electronic selection control button connect solenoid control left side or right side workpiece by controller respectively.Controller is when operation one side electronic operation handle, and controller is controlled the adjustment of 5 kinds of functions of land leveller the same side workpiece in proportion according to input signal, and can realize the Synchronization Control of opposite side appointed function.
The concrete structure of present embodiment and the course of work:
The composition of native system comprises 1 controller and 2 sleeving valve group and joysticks, and every sleeving valve group and joystick comprise: simply connected electricity proportional reversing valve, 4 automatically controlled selector valves, 1 electronic operation handle.
The basic principle of control system is that hydraulic pump (constant displacement pump or variable pump) provides dynamicliquid pressure oil, is controlled the forward and reverse motion and the movement velocity of a certain hydraulic actuator by electric ratio hydraulic valve and regulates; Select different hydraulic actuators by automatically controlled selector valve, realize the adjustment of different operating component function.
As shown in Figure 1, main control valve is made up of 2 oil-feed valve blocks, 2 electric proportional reversing valve valve blocks and 1 guide's oil sources valve block, and the oil-feed of 2 electric proportional reversing valves and work oil-out are independent, is equivalent to 2 simply connected electricity ratio commutation combination valves.The hydraulic oil of gear pump 14 can switch the flow direction of fluid through electric proportional reversing valve 5; Enter 4 automatically controlled selector valves 1,2,3 and 4; When control electronic operation handle 13 buttons made valve block 4 actions, hydraulic oil entered hydraulic jack or the hydraulic motor that is attached thereto through the actuator port C1/C2 of this valve block; When selecting another sheet valve events, hydraulic oil enters the hydraulic actuator that is attached thereto through the actuator port of this valve block; When selector valve 1,2,3,4 did not all move, hydraulic oil directly passed 4 automatically controlled selector valves, entered the hydraulic actuator of selecting valve block 1 cascade hydraulic fluid port B1/B2 to be connected.Controller connects control electromagnetic valve 6.
The control signal of electronic operation handle 12,13 is controlled 4 automatically controlled selector valves 1～4 and 8～11 respectively, and input controller 15.Controller is according to the electric proportional reversing valve of input signal export ratio signal controlling correspondence.When the electronic operation handle has compound button to press, controller is according to input signal and composite signals 2 electric proportional reversing valves 5 of export ratio signal controlling and 7 simultaneously, with functional part (as left side perching knife hoist cylinder and the right side perching knife hoist cylinder) action of simultaneously operating left and right sides appointment.
As shown in Figure 2, system's microcontroller receives left and right sides electronic operation handle command signal, output control left and right sides electric proportional valve, and, control 10 kinds of workpieces of land leveller respectively by hydraulic selector.Microcontroller is reserved with the CAN bus simultaneously, when land leveller is equipped with the intelligence control system (as engine control, gearshift control, automatic leveling etc.) of band CAN bus, native system can with land leveller other intelligence control system swap data and control instructions, guarantee complete machine control more freely, conveniently, improve the complete machine control performance.
Fig. 3 is the control flow theory diagram, and its operating procedure and process are as follows:
1. after the controller energising, I/O port and CAN bus are carried out initialization.
2. read in the I/O port data, read in the bus command data.
3. control Parameters Calculation, i.e. export ratio pwm control signal.
4. according to input signal and bus command, judge current control model, be defined as conventional control model, perhaps compound control mode.
5. conventional control model: export corresponding control parameter pwm signal to left electric proportional valve and right electric proportional valve, forwarded for the 7th step to.
6. compound control mode: export corresponding control parameter pwm signal to left electric proportional valve and right electric proportional valve, forwarded for the 7th step to.
7. will store through parameter and the working time demarcated.
8. next circulation is returned and entered to program.
Claims (5)
1. proportional dual-handle control system of grader, comprise joystick, joystick connects electromagnetic valve, it is characterized in that: control system has controller, dual-handle and electromagnetic valve group, controller connects dual-handle and electromagnetic valve group, electromagnetic valve group has the electromagnetic valve of selection and proportion magnetic valve, and dual-handle connects the selection electromagnetic valve respectively.
2. proportional dual-handle control system of grader according to claim 1 is characterized in that: dual-handle is left handle and right handles, and left handle or right handles are provided with compound control button.
3. proportional dual-handle control system of grader according to claim 1 is characterized in that: dual-handle is provided with perching knife, front-wheel, turns to, ejector dozer action electronic selection control button.
4. proportional dual-handle control system of grader according to claim 3 is characterized in that: the left handle of dual-handle or right handles electronic selection control button connect solenoid control left side or right side workpiece by controller respectively.
5. proportional dual-handle control system of grader according to claim 1 is characterized in that: selecting electromagnetic valve is 4 automatically controlled selector valves, and proportion magnetic valve is a simply connected electricity proportional reversing valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910070248 CN101644067B (en) | 2009-08-27 | 2009-08-27 | Proportional dual-handle control system of grader |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910070248 CN101644067B (en) | 2009-08-27 | 2009-08-27 | Proportional dual-handle control system of grader |
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| CN101644067A true CN101644067A (en) | 2010-02-10 |
| CN101644067B CN101644067B (en) | 2013-05-29 |
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| CN 200910070248 Active CN101644067B (en) | 2009-08-27 | 2009-08-27 | Proportional dual-handle control system of grader |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824544A (en) * | 2018-07-24 | 2018-11-16 | 徐州徐工筑路机械有限公司 | A kind of level land Electrical Control double handle control system |
| CN111043088A (en) * | 2019-12-31 | 2020-04-21 | 柳工常州机械有限公司 | Walking hydraulic pilot control system |
| CN112211240A (en) * | 2020-09-18 | 2021-01-12 | 徐州徐工筑路机械有限公司 | Land leveler articulated steering mechanism and control method thereof |
| CN113202156A (en) * | 2021-05-07 | 2021-08-03 | 徐州徐工筑路机械有限公司 | Anti-collision control system for land leveler working device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7059124B2 (en) * | 2003-12-01 | 2006-06-13 | Komatsu Ltd. | Hydraulic control apparatus for work machines |
| CA2651222C (en) * | 2006-02-02 | 2012-04-24 | Meyer Products Llc | Method and apparatus for raising a snowplow |
| CN201258502Y (en) * | 2008-05-26 | 2009-06-17 | 徐州徐工筑路机械有限公司 | Mono-lever control system for leveler |
| CN201502070U (en) * | 2009-08-27 | 2010-06-09 | 天津工程机械研究院 | Land leveler proportion double-handle control device |
-
2009
- 2009-08-27 CN CN 200910070248 patent/CN101644067B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824544A (en) * | 2018-07-24 | 2018-11-16 | 徐州徐工筑路机械有限公司 | A kind of level land Electrical Control double handle control system |
| CN111043088A (en) * | 2019-12-31 | 2020-04-21 | 柳工常州机械有限公司 | Walking hydraulic pilot control system |
| CN111043088B (en) * | 2019-12-31 | 2024-05-17 | 柳工常州机械有限公司 | Walking hydraulic pilot control system |
| CN112211240A (en) * | 2020-09-18 | 2021-01-12 | 徐州徐工筑路机械有限公司 | Land leveler articulated steering mechanism and control method thereof |
| CN112211240B (en) * | 2020-09-18 | 2022-06-03 | 徐州徐工筑路机械有限公司 | Land leveler articulated steering mechanism and control method thereof |
| CN113202156A (en) * | 2021-05-07 | 2021-08-03 | 徐州徐工筑路机械有限公司 | Anti-collision control system for land leveler working device |
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| CN101644067B (en) | 2013-05-29 |
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