CN102704382B - Method and system for controlling ironing board of paver - Google Patents
Method and system for controlling ironing board of paver Download PDFInfo
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- CN102704382B CN102704382B CN201210193020.6A CN201210193020A CN102704382B CN 102704382 B CN102704382 B CN 102704382B CN 201210193020 A CN201210193020 A CN 201210193020A CN 102704382 B CN102704382 B CN 102704382B
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Abstract
The invention discloses a method and system for controlling an ironing board of a paver. The paver comprises a main machine, a hydraulic system and the ironing board which is controlled and driven by the main frame; the paver is also equipped with a signal detection device used for detecting the type of the ironing board and generating a detection signal presenting the type of the ironing board. The method comprises the following steps: the main machine receives the detection signal generated by the signal detection device, judges whether the ironing board is a mechanical ironing board or a hydraulic expansion-type ironing board, and controls the hydraulic system to be in a corresponding work mode according to the judged result. Through the invention, the problem that after the expansion-type ironing board is converted into the mechanical ironing board, the hydraulic system for controlling the expansion of the ironing board is in an overflow state for a long time due to misoperation is solved, and the abnormal heating and the extra energy loss are guaranteed not to be caused due to the misoperation of the hydraulic system.
Description
Technical field
The present invention relates to engineering machinery field, in particular to a kind of control method and system of screed of paver.
Background technology
Screed is the equipment of paver, mainly contain the screed of two kinds of forms, one is that mechanical type screed (also can be called mechanical assembled screed or machinery lengthening screed etc., referred to as " mechanical type screed "), adopt the mode of mechanical connection to lengthen or widen the job area of paver; Another kind is hydraulic telescopic type screed (referred to as " telescopic ironing table "), adopts the mode of hydraulically extensible to lengthen or widen the job area of paver.Conventionally the main machine structure of the screed of these two kinds of forms of configuration is identical, but corresponding hydraulic system separately respectively, and each main frame is corresponding one by one with each circuit of screed, for example: each main frame is corresponding to screed flexible relevant hydraulic circuit and electric loop homogeneous one, also corresponding one by one with corresponding control function on screed.
Conventionally, the screed of existing paver configuration only has one type, do not support the screed of two types to exchange, if hydraulic telescopic type screed is changed to mechanical type screed, may cause controlling the flexible hydraulic work system of screed for a long time in overflow situation because of maloperation.The structural representation of the host configuration mechanical type screed in correlation technique as shown in Figure 1, left telescoping electromagnetic valve 13 controlled respectively by two extension and contraction control switches 11 and 12 of this main frame and right telescoping electromagnetic valve 14(also claims telescoping cylinder control valve group) startup Telescopic; Because mechanical type screed 15 only has hammer ram and vibration, there is no the exclusive operating functions of hydraulic telescopic type screed such as left and right flexible, side tension, therefore under the configuration mode of Fig. 1, port one 6 shutoff of the pipeline that left telescoping electromagnetic valve 13 can be connected with right telescoping electromagnetic valve 14.If client uses above-mentioned main frame, because of the needs of construction, screed is changed to mechanical type screed by hydraulic telescopic type screed, in work progress, may be due to maloperation or other reason, the console switch (being the extension and contraction control switch 11 and 12 in above-mentioned Fig. 1) of controlling flexible function has been placed in duty by mistake, in the case, because practice of construction does not need flexible associative operation, client generally can not check on off state now.Therefore can cause corresponding electromagnetic valve energising, related fluid pressing system is in running order, controls the long-term overflow of telescopic section hydraulic system, causes the waste of engine power.If corresponding hydraulic system, for a long time in overflow situation, will cause Hydraulic System Oil temperature abnormality to raise, affect the application life of hydraulic system components and parts.In addition, also apt to deteriorate under hydraulic oil long term high temperature.
For being changed to after mechanical type screed by telescopic ironing table in correlation technique, because maloperation causes controlling the long-term problem in overflow situation of the flexible hydraulic work system of screed, effective solution is not yet proposed at present.
Summary of the invention
The invention provides a kind of control method and system of screed of paver, above-mentionedly be changed to after mechanical type screed by telescopic ironing table at least to solve, because maloperation causes controlling the long-term problem in overflow situation of the flexible hydraulic work system of screed.
According to an aspect of the present invention, a kind of control method of screed of paver is provided, this paver comprises main frame, hydraulic system and the screed being driven by host computer control, this paver also disposes a signal supervisory instrument, signal supervisory instrument is for detection of the type of screed, and generation represents the detection signal of the type of screed; Above-mentioned control method comprises the steps: that main frame receives the detection signal of signal supervisory instrument; This main frame judges that screed is mechanical type screed or hydraulic telescopic type screed, according to judgement output control hydraulic system in corresponding mode of operation.
The mode that above-mentioned signal supervisory instrument produces detection signal comprises: in the time detecting that screed is mechanical type screed, not to main frame feedback detection signal; In the time detecting that screed is hydraulic telescopic type screed, to main frame feedback detection signal; Above-mentioned main frame judges that screed is that mechanical type screed or hydraulic telescopic type screed comprise: if in the fixed time after main frame powers on, main frame does not receive the detection signal of signal supervisory instrument, main frame determines that screed is mechanical type screed; If in the fixed time after main frame powers on, main frame receives the detection signal of signal supervisory instrument, and main frame determines that screed is hydraulic telescopic type screed.
Above-mentioned main frame comprises in corresponding mode of operation according to the output control hydraulic system judging: in the time that screed is mechanical type screed, the telescoping electromagnetic valve of host computer control hydraulic system is in off working state; In the time that screed is hydraulic telescopic type screed, the telescoping electromagnetic valve of host computer control hydraulic system is in running order.
The telescoping electromagnetic valve of above-mentioned host computer control hydraulic system comprises in off working state: the input signal of the telescoping electromagnetic valve control button of the power supply of the telescoping electromagnetic valve of main frame cutting-off liquid pressing system or main frame shielding hydraulic system, makes the function of telescoping electromagnetic valve of hydraulic system in original state.
The power supply of the telescoping electromagnetic valve of above-mentioned main frame cutting-off liquid pressing system comprises one of following mode: main frame is by the power supply of the telescoping electromagnetic valve of the dump instruction cutting-off liquid pressing system of controller; Main frame is by turn-offing the power supply of the switch cut-out telescoping electromagnetic valve between telescoping electromagnetic valve and power supply.
According to a further aspect in the invention, a kind of control system of screed of paver is provided, this paver comprises main frame, hydraulic system and the screed being driven by host computer control, this paver also disposes a signal supervisory instrument, signal supervisory instrument is for detection of the type of screed, and generation represents the detection signal of screed type; This main frame, for receiving the detection signal of signal supervisory instrument, judge that screed is mechanical type screed or hydraulic telescopic type screed, and according to the output control hydraulic system judging in corresponding mode of operation.
Above-mentioned signal supervisory instrument is in the time detecting that screed is mechanical type screed, not to main frame feedback detection signal; In the time detecting that screed is hydraulic telescopic type screed, to main frame feedback detection signal; Above-mentioned main frame is set to, in the fixed time after main frame powers on, not receive the detection signal of signal supervisory instrument, determines that screed is mechanical type screed; If in the fixed time after main frame powers on, receive the detection signal of signal supervisory instrument, determine that screed is hydraulic telescopic type screed.
Above-mentioned main frame, in the time that screed is mechanical type screed, is controlled the telescoping electromagnetic valve of hydraulic system in off working state; In the time that screed is hydraulic telescopic type screed, the telescoping electromagnetic valve of controlling hydraulic system is in running order.
Above-mentioned signal supervisory instrument comprises transmitting device and flip flop equipment, wherein, it is one of following that the setting position of transmitting device and flip flop equipment comprises: transmitting device is arranged on the large arm of main frame, and flip flop equipment is arranged on position corresponding with transmitting device on hydraulic telescopic type screed; Flip flop equipment is arranged on the large arm of main frame, and transmitting device is arranged on position corresponding with flip flop equipment on hydraulic telescopic type screed; Transmitting device is arranged on the hydralic hose of hydraulic telescopic type screed, and flip flop equipment is arranged on the installing plate of hydralic hose; Flip flop equipment is arranged on the hydralic hose of hydraulic telescopic type screed, and transmitting device is arranged on the installing plate of hydralic hose.
Above-mentioned transmitting device is touch switch or non-contact switch.
Above-mentioned signal supervisory instrument is pattern recognition device, and pattern recognition device is determined the type of screed by the mark on identification mechanical type screed or hydraulic telescopic type screed.
By the present invention, the detection signal of signal supervisory instrument is determined the type of screed, and according to the Type Control hydraulic system of current screed in corresponding mode of operation, solve by telescopic ironing table and be changed to after mechanical type screed, because maloperation causes controlling the long-term problem in overflow situation of the flexible hydraulic work system of screed, ensure that hydraulic system can be because of maloperation abnormal heating and extra energy loss.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the structural representation of the host configuration mechanical type screed of correlation technique;
Fig. 2 is the control method flow chart according to the screed of the paver of the embodiment of the present invention;
Fig. 3 is the partial schematic diagram being connected with hydraulic telescopic type screed according to the main frame of the embodiment of the present invention;
Fig. 4 is the partial schematic diagram being connected with mechanical type screed according to the main frame of the embodiment of the present invention;
Fig. 5 is according to the partial schematic diagram of the hydraulic telescopic type screed of the embodiment of the present invention;
Fig. 6 is the control system structured flowchart according to the screed of the paver of the embodiment of the present invention.
Detailed description of the invention
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
The present embodiment provides a kind of control method of screed of paver, this paver comprises main frame, hydraulic system and the screed being driven by host computer control, and dispose a signal supervisory instrument, this signal supervisory instrument is for detection of the type of screed, and generation represents the detection signal of screed type, based on this, the control method flow chart of the screed of paver as shown in Figure 2, the method comprises the following steps:
Step S202, main frame receives the detection signal of signal supervisory instrument.
Step S204, main frame judges that screed is mechanical type screed or hydraulic telescopic type screed.Wherein, judge that screed is that mechanical type screed or hydraulic telescopic type screed can judge according to the situation of obtaining of detection signal, the mode of the generation of the signal supervisory instrument in the present embodiment detection signal comprises for this reason: in the time that detection screed is mechanical type screed, not to main frame feedback detection signal; In the time that detection screed is hydraulic telescopic type screed, to main frame feedback detection signal (or contrary situation); Based on this, determine whether screed is that mechanical type screed can adopt following manner to realize: for example, if in the fixed time after main frame powers on (: 1 minute etc.), main frame does not receive the detection signal of signal supervisory instrument feedback, and main frame determines that this screed is mechanical type screed.Corresponding with it, if in the fixed time after main frame powers on, main frame receives the detection signal of signal supervisory instrument feedback, and main frame determines that this screed is hydraulic telescopic type screed.Definite mode of this screed type is fairly simple, does not need main frame and the transmission of signal supervisory instrument multiple signal, can realize the type of screed and determine.Understandable, also can signal supervisory instrument in the time detecting screed and be mechanical type screed, to main frame feedback one first detection signal, as high level signal; In the time that detection screed is hydraulic telescopic type screed, to main frame feedback one second detection signal, as low level signal.
Step S206, main frame according to judgement output control hydraulic system in corresponding mode of operation.
The telescoping electromagnetic valve of the present embodiment refers to the left and right telescoping electromagnetic valve shown in Fig. 1.
The present embodiment is determined the type of screed by the detection signal of signal supervisory instrument, and according to the Type Control hydraulic system of current screed in corresponding mode of operation, solve by telescopic ironing table and be changed to after mechanical type screed, because maloperation causes controlling the long-term problem in overflow situation of the flexible hydraulic work system of screed, ensure that hydraulic system can be because of maloperation abnormal heating and extra energy loss.
Main frame in the present embodiment can be specially in corresponding mode of operation according to the output control hydraulic system judging: in the time that screed is mechanical type screed, the telescoping electromagnetic valve of host computer control hydraulic system is in off working state; In the time that screed is hydraulic telescopic type screed, the telescoping electromagnetic valve of host computer control hydraulic system is in running order.Under this control mode, in the time that screed is mechanical type screed, because controlled telescoping electromagnetic valve in off working state, even if the console switch of controlling flexible function is placed in duty by operating personnel's mistake, telescoping electromagnetic valve also can not turn round, thereby can solve by hydraulic telescopic type screed and be changed to after mechanical type screed, because maloperation causes controlling the long-term problem in overflow situation of the flexible hydraulic work system of screed, ensure that hydraulic system can be because of maloperation abnormal heating and extra energy loss.
The telescoping electromagnetic valve of the host computer control hydraulic system in the present embodiment can adopt various ways to realize in off working state, for example: main frame cuts off the power supply of above-mentioned telescoping electromagnetic valve, so no matter whether operating personnel press the console switch of telescoping electromagnetic valve, telescoping electromagnetic valve all can not move, and has effectively prevented the generation of the hydraulic system continuous service situation causing because of maloperation.Or, main frame also can shield hydraulic system telescoping electromagnetic valve control button input signal (for example, the input signal of the telescoping electromagnetic valve control button of the logical program shielding hydraulic system by controller), make the function of telescoping electromagnetic valve of hydraulic system in original state.
In the time that specific implementation main frame cuts off the power supply of telescoping electromagnetic valve, can adopt programme controlled mode to realize, for example, by write corresponding instruction code in controller, main frame is in the time that definite screed is mechanical type screed, and trigger controller sends dump instruction to the power supply of telescoping electromagnetic valve; Also can adopt hardware mode to realize, for example, a switch is set between telescoping electromagnetic valve and its power supply, main frame, in the time that definite screed is mechanical type screed, triggers this switch and turn-offs.Based on this, the power supply that above-mentioned main frame cuts off telescoping electromagnetic valve comprises one of following mode: main frame cuts off the power supply of telescoping electromagnetic valve by the dump instruction of controller; Main frame is by turn-offing the power supply of the switch cut-out telescoping electromagnetic valve between telescoping electromagnetic valve and power supply.The implementation of this cut-out power supply is more flexible, can adapt to the needs of various scenes, has strengthened the practicality of system.
Said method is by application signal supervisory instrument, can automatic distinguishing client assembling be mechanical type screed or telescopic ironing table.When client assembling be mechanical screed time, this device sends signal, cuts off the control power supply of telescopic oil cylinder control electromagnetic valve group (being above-mentioned telescoping electromagnetic valve), in the time that maloperation appears in client, this valve can energized action yet, hydraulic system keeps unloading condition.
Signal supervisory instrument in the embodiment of the present invention can comprise transmitting device and flip flop equipment, wherein, transmitting device can be a touch switch or non-contact switch, this switch can be switch with mechanical contact (contact with flip flop equipment then produce signal) or approach switch (for example, travel switch, after flip flop equipment and its approach, produces signal), wherein, approach switch can be photoinduction, electromagnetic induction or ultrasonic sensing switch.
In the present embodiment, the setting position of transmitting device and flip flop equipment can be versatile and flexible, for example, be arranged on the connecting portion of main frame and screed.Corresponding above-mentioned signal supervisory instrument is in the time that detection screed is mechanical type screed, not to main frame feedback detection signal; In the time that detection screed is hydraulic telescopic type screed, to the implementation of main frame feedback detection signal, the transmitting device of the present embodiment and the setting position of flip flop equipment comprise following several:
The first: the partial schematic diagram that main frame is as shown in Figure 3 connected with hydraulic telescopic type screed, wherein, at the position that is connected of screed and main frame, arrange this signal supervisory instrument, the transmitting device (being the travel switch 32 in Fig. 3) of this signal supervisory instrument is arranged on the large arm 31 of main frame, and flip flop equipment 33 is arranged on position corresponding with transmitting device on telescopic ironing table 34; When client assembles after screed, flip flop equipment 33 has compressed transmitting device naturally, sends signal.This signal can be used for controlling the gauge tap power supply of telescoping cylinder control valve group, and its master cock can be worked.
Under this mode, the partial schematic diagram that this main frame is connected with mechanical type screed as shown in Figure 4, transmitting device (being the travel switch 32 in Fig. 4) is arranged on the large arm 31 of main frame, and now, mechanical type screed 41 does not have flip flop equipment, after assembling, this transmitting device can not send signal yet, and so the gauge tap on main engine maneuvering stand, no matter in what position, does not have the signal of telecommunication yet and sends, corresponding telescoping electromagnetic valve does not have misoperation, and corresponding hydraulic system keeps unloading condition.
The second: contrary with the first implementation, under which, flip flop equipment is arranged on the large arm of main frame, and transmitting device is arranged on position corresponding with flip flop equipment on hydraulic telescopic type screed.
The third: transmitting device is arranged on the hydralic hose of hydraulic telescopic type screed, flip flop equipment is arranged on the installing plate of hydralic hose, the partial schematic diagram of telescopic ironing table as shown in Figure 5, under which, the hydralic hose 52(that the transmitting device (being the travel switch 51 in Fig. 5) of this signal supervisory instrument is arranged on telescopic ironing table is the sebific duct that hydraulically extensible is used) on, flip flop equipment 53 is arranged on hydralic hose installing plate 54, by installing or not installing hydralic hose 52, control the break-make of flexible valve circuit, prevent due to tractor driver's operate miss or forget, make system in abnormal operating state, avoid the generation of fault.
The 4th kind: contrary with the third mode, flip flop equipment is arranged on the hydralic hose of hydraulic telescopic type screed, and transmitting device is arranged on hydralic hose installing plate.
Under above-mentioned four kinds of modes, after main frame is connected with telescopic ironing table, flip flop equipment will compress or close transmitting device, and then reach the object that makes transmitting device feed back detection signal to main frame, and sort signal producing method is simple.Certainly, above-mentioned four kinds of modes are only optimal ways, in order to realize being used in conjunction with of transmitting device and flip flop equipment, also the two can be arranged on to other position, and the embodiment of the present invention is not done concrete restriction to this.
In the time that transmitting device is travel switch, can travel switch be connected with main frame by the mode of wired connection, to strengthen the stability of signal.
The signal supervisory instrument of the present embodiment can be also pattern recognition device, under this mode, pattern recognition device is determined the type of screed by the mark on identification mechanical type screed or telescopic ironing table, this mark can arrange according to actual needs, and the embodiment of the present invention is not specifically limited.
Corresponding said method, the present embodiment provides a kind of control system of screed of paver, the system architecture diagram of control screed work as shown in Figure 6, wherein, paver comprises main frame 64, hydraulic system 68 and is controlled the screed 62 of driving by main frame 64, and this paver disposes a signal supervisory instrument 66, signal supervisory instrument 66 is for detection of the type of screed, and generation represents the detection signal of pressing board type; This main frame 64 is for receiving the detection signal of signal supervisory instrument 66, judges that screed 62 is for mechanical type screed or hydraulic telescopic type screed, and according to the output control hydraulic system 68 of judgement in corresponding mode of operation.
The system of the present embodiment, the detection signal of signal supervisory instrument 66 is determined the type of screed 62, and according to the Type Control hydraulic system 68 of current screed 62 in corresponding mode of operation, solve by telescopic ironing table and be changed to after mechanical type screed, because maloperation causes controlling the flexible hydraulic system of the screed 68 long-term problem in overflow situation of working, ensure that hydraulic system 68 can be because of maloperation abnormal heating and extra energy loss.
Above-mentioned signal supervisory instrument 66, in the time screed 62 being detected for mechanical type screed, does not feed back detection signal to main frame 64; In the time screed 62 being detected for hydraulic telescopic type screed, feed back detection signal to main frame 64; Main frame 64 is set to, in the fixed time after main frame 64 powers on, not receive the detection signal of signal supervisory instrument 66, determines that screed 62 is for mechanical type screed; In fixed time on main frame after 64 electricity, receive the detection signal of signal supervisory instrument 66, determine that screed 62 is for hydraulic telescopic type screed.
Particularly, main frame 64, in the time that screed 62 is mechanical type screed, is controlled the telescoping electromagnetic valve of hydraulic system 68 in off working state; In the time that screed 62 is hydraulic telescopic type screed, the telescoping electromagnetic valve of controlling hydraulic system 68 is in running order.
Signal supervisory instrument 66 comprises transmitting device and flip flop equipment, wherein, it is one of following that the setting position of transmitting device and flip flop equipment comprises: transmitting device is arranged on the large arm of main frame 64, and flip flop equipment is arranged on position corresponding with transmitting device on hydraulic telescopic type screed; Flip flop equipment is arranged on the large arm of main frame 64, and transmitting device is arranged on position corresponding with flip flop equipment on hydraulic telescopic type screed; Transmitting device is arranged on the hydralic hose of hydraulic telescopic type screed, and flip flop equipment is arranged on the installing plate of hydralic hose; Flip flop equipment is arranged on the hydralic hose of hydraulic telescopic type screed, and transmitting device is arranged on the installing plate of hydralic hose.
Above-mentioned transmitting device is touch switch (switch with mechanical contact) or non-contact switch (approach switch), for example, be travel switch.
As another kind of implementation, the signal supervisory instrument 66 of the present embodiment can also be pattern recognition device, and pattern recognition device is determined the type of screed 62 by the mark on identification mechanical type screed or hydraulic telescopic type screed.
From said system, the present embodiment is by installing a kind of signal supervisory instrument, what this signal supervisory instrument can be identified assembling automatically is that machinery is pressed formula flat board or hydraulic telescopic type screed, and according to the situation of identification, trigger main frame and automatically control the peculiar function of freely-moving mangle, make them can keep predetermined state, can not be misused triggering.
As can be seen from the above description, if client is because of the needs of construction, screed is changed to mechanical type screed by hydraulic telescopic ironing board, in work progress, if due to maloperation or other reason, the console switch of controlling flexible function has been placed in duty by mistake, in the case, because practice of construction does not need flexible associative operation, client generally can not check on off state now, by the control system in above-described embodiment and control mode, can make hydraulic buttery valve in off working state, electromagnetic valve will can not turn round like this, related fluid pressing system can be in overflow situation yet, reduce engine power, protect the application life of hydraulic pressure components and parts and hydraulic oil.By the way, can effectively shield the problems referred to above that this artificial maloperation causes.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. the control method of the screed of a paver, described paver comprises main frame, hydraulic system and the screed being driven by described host computer control, it is characterized in that, described paver disposes a signal supervisory instrument, described signal supervisory instrument is for detection of the type of described screed, and generation represents the detection signal of the type of described screed; Described control method comprises the steps:
Described main frame receives the detection signal of described signal supervisory instrument;
Described main frame judges that described screed is mechanical type screed or hydraulic telescopic type screed;
Described main frame is according to hydraulic system described in the output control of judgement in corresponding mode of operation, and wherein, in the time that described screed is mechanical type screed, the telescoping electromagnetic valve of hydraulic system is in off working state described in described host computer control; In the time that described screed is hydraulic telescopic type screed, the telescoping electromagnetic valve of hydraulic system is in running order described in described host computer control.
2. method according to claim 1, is characterized in that, the mode that described signal supervisory instrument produces described detection signal comprises: in the time detecting that described screed is mechanical type screed, not to described main frame feedback detection signal; In the time detecting that described screed is hydraulic telescopic type screed, to described main frame feedback detection signal;
Described main frame judges that described screed is that mechanical type screed or hydraulic telescopic type screed comprise: if in the fixed time after described main frame powers on, described main frame does not receive the detection signal of described signal supervisory instrument, and described main frame determines that described screed is mechanical type screed; If in the fixed time after described main frame powers on, described main frame receives the detection signal of described signal supervisory instrument, and described main frame determines that described screed is hydraulic telescopic type screed.
3. method according to claim 1, is characterized in that, the telescoping electromagnetic valve of hydraulic system comprises in off working state described in described host computer control:
Described main frame cuts off the power supply of telescoping electromagnetic valve of described hydraulic system or described main frame and shields the input signal of the telescoping electromagnetic valve control button of described hydraulic system, so that the function of the telescoping electromagnetic valve of described hydraulic system is in off working state.
4. method according to claim 3, is characterized in that, the power supply that described main frame cuts off the telescoping electromagnetic valve of described hydraulic system comprises one of following mode:
Described main frame cuts off the power supply of the telescoping electromagnetic valve of described hydraulic system by the dump instruction of controller;
Described main frame is by turn-offing the power supply of the switch cut-out telescoping electromagnetic valve between described telescoping electromagnetic valve and power supply.
5. the control system of the screed of a paver, described paver comprises main frame, hydraulic system and the screed being driven by described host computer control, it is characterized in that, described paver disposes a signal supervisory instrument, described signal supervisory instrument is for detection of the type of described screed, and generation represents the detection signal of the type of described screed;
Described main frame is for receiving the detection signal of described signal supervisory instrument, judge that described screed is mechanical type screed or hydraulic telescopic type screed, and according to judgement output control described in hydraulic system in corresponding mode of operation, wherein, in the time that described screed is mechanical type screed, the telescoping electromagnetic valve of hydraulic system is in off working state described in described host computer control; In the time that described screed is hydraulic telescopic type screed, the telescoping electromagnetic valve of hydraulic system is in running order described in described host computer control.
6. system according to claim 5, is characterized in that, described signal supervisory instrument is in the time detecting that described screed is mechanical type screed, not to described main frame feedback detection signal; Described signal supervisory instrument is in the time detecting that described screed is hydraulic telescopic type screed, to described main frame feedback detection signal;
Described main frame is set to, in the fixed time after described main frame powers on, not receive the detection signal of described signal supervisory instrument, determines that described screed is mechanical type screed; If in the fixed time after described main frame powers on, receive the detection signal of described signal supervisory instrument, determine that described screed is hydraulic telescopic type screed.
7. according to the system described in any one in claim 5 or 6, it is characterized in that, described signal supervisory instrument comprises transmitting device and flip flop equipment, and wherein, it is one of following that the setting position of described transmitting device and flip flop equipment comprises:
Described transmitting device is arranged on the large arm of described main frame, and described flip flop equipment is arranged on the position corresponding with described transmitting device on hydraulic telescopic type screed;
Described flip flop equipment is arranged on the large arm of described main frame, and described transmitting device is arranged on the position corresponding with described flip flop equipment on hydraulic telescopic type screed;
Described transmitting device is arranged on the hydralic hose of hydraulic telescopic type screed, and described flip flop equipment is arranged on the installing plate of described hydralic hose;
Described flip flop equipment is arranged on the hydralic hose of hydraulic telescopic type screed, and described transmitting device is arranged on the installing plate of described hydralic hose.
8. system according to claim 7, is characterized in that, described transmitting device is touch switch or non-contact switch.
9. according to the system described in any one in claim 5 or 6, it is characterized in that, described signal supervisory instrument is pattern recognition device, and described pattern recognition device is determined the type of screed by identifying mark on described mechanical type screed or described hydraulic telescopic type screed.
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| CN201210193020.6A CN102704382B (en) | 2012-06-13 | 2012-06-13 | Method and system for controlling ironing board of paver |
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| CN201210193020.6A CN102704382B (en) | 2012-06-13 | 2012-06-13 | Method and system for controlling ironing board of paver |
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| CN102704382B true CN102704382B (en) | 2014-08-27 |
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| CN102910165B (en) * | 2012-11-06 | 2016-03-16 | 潍柴动力股份有限公司 | A kind of motor vehicle driven by mixed power and power output control device thereof |
| CN103206420B (en) * | 2013-04-03 | 2016-01-13 | 中联重科股份有限公司 | Paver and screed oil hydraulic circuit, hydraulic control system and controlling method |
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| JPH07102521A (en) * | 1993-10-08 | 1995-04-18 | Shin Caterpillar Mitsubishi Ltd | Screed device for paving machine and the like |
| CN101100839A (en) * | 2007-07-27 | 2008-01-09 | 长沙中联重工科技发展股份有限公司 | Double-layer lying device for hot in-place regeneration remixer |
| CN102061656A (en) * | 2010-11-23 | 2011-05-18 | 中国二十二冶集团有限公司 | Assembly vehicle for ironing plate of paver |
-
2012
- 2012-06-13 CN CN201210193020.6A patent/CN102704382B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3564986A (en) * | 1968-10-04 | 1971-02-23 | Luther B Burgin | Automatic screed control for asphalt pavers |
| JPH07102521A (en) * | 1993-10-08 | 1995-04-18 | Shin Caterpillar Mitsubishi Ltd | Screed device for paving machine and the like |
| CN101100839A (en) * | 2007-07-27 | 2008-01-09 | 长沙中联重工科技发展股份有限公司 | Double-layer lying device for hot in-place regeneration remixer |
| CN102061656A (en) * | 2010-11-23 | 2011-05-18 | 中国二十二冶集团有限公司 | Assembly vehicle for ironing plate of paver |
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| Publication number | Publication date |
|---|---|
| CN102704382A (en) | 2012-10-03 |
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