CN103470051A - Engineering machine, and equipment, method and system for controlling cantilever crane - Google Patents
Engineering machine, and equipment, method and system for controlling cantilever crane Download PDFInfo
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- CN103470051A CN103470051A CN2013104185182A CN201310418518A CN103470051A CN 103470051 A CN103470051 A CN 103470051A CN 2013104185182 A CN2013104185182 A CN 2013104185182A CN 201310418518 A CN201310418518 A CN 201310418518A CN 103470051 A CN103470051 A CN 103470051A
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Abstract
The invention discloses an engineering machine and equipment, a method and a system for controlling a cantilever crane. The equipment comprises a receiving device and a control device. The receiving device is used for receiving power-on time difference between an electromagnetic reversing valve and an electric proportional multi-way valve and power-off time difference between the electric proportional multi-way valve and the electromagnetic reversing valve; the control device is used for controlling the electric proportional multi-way valve to be powered on after the cantilever crane is started and then the electromagnetic reversing valve keeps being powered on for the duration of the power-on time difference; the control device also controls the electromagnetic reversing valve to be powered off after the cantilever crane is stopped and then the electric proportional multi-way valve keeps being powered off for the duration of the power-off time difference. The engineering machine, the equipment, the method and the system have the advantages that pressure impact generated when the cantilever crane is started or stopped can be eliminated, so that the cantilever crane can stably act, the service lives of elements and pipelines can be prolonged, and the maintenance cost can be reduced.
Description
Technical field
The present invention relates to engineering machinery field, particularly, relate to a kind of jib control appliance, method, system and engineering machinery.
Background technology
Can use the engineering machinery with jib in the operation of building site, for example carry out concrete work.Fig. 1 is the technical scheme that in prior art, a kind of jib is controlled, and adopts the control that comprises that hydraulic pump 1, remote controller 2, electric proportional multi-way valve 3, control module 4, solenoid operated directional valve 5 and hydraulic jack 6 are realized jib in this scheme.In this scheme, start operation button of remote controller, the proportion electro-magnet that control module 4 can control ratio banked direction control valves 4 and the electromagnet of solenoid operated directional valve 5 simultaneously electric or dead electricity, thereby the stretching out or retract of control hydraulic jack 6.But, this scheme the electromagnet of the electromagnet of proportional multi-way valve 4 and solenoid operated directional valve 5 simultaneously during electric or dead electricity, easily cause system pressure impact, affect the stability of system, reduce the application life of element and pipeline.
Summary of the invention
The purpose of this invention is to provide a kind of jib control appliance, method, system and engineering machinery, with avoid proportional multi-way valve and solenoid operated directional valve simultaneously electric or compression shock that dead electricity causes.
To achieve these goals, the invention provides a kind of jib control appliance, this equipment comprises: receiving system obtains electric time difference and dead electricity time difference between described electric proportional multi-way valve and described solenoid operated directional valve for receiving between solenoid operated directional valve and electric proportional multi-way valve; And control device, for when jib starts, control described solenoid operated directional valve obtain electric continue described the electric time difference after, described electric proportional multi-way valve obtains electric; And, when jib stops, controlling described electric proportional multi-way valve dead electricity and continue described dead electricity after the time difference, described solenoid operated directional valve dead electricity.
Correspondingly, the invention provides a kind of arm support control method, the method comprises: receive between solenoid operated directional valve and electric proportional multi-way valve and obtain electric time difference and dead electricity time difference between described electric proportional multi-way valve and described solenoid operated directional valve; And when jib starts, control described solenoid operated directional valve obtain electric continue described the electric time difference after, described electric proportional multi-way valve obtains electric; And, when jib stops, controlling described electric proportional multi-way valve dead electricity and continue described dead electricity after the time difference, described solenoid operated directional valve dead electricity.
Correspondingly, the invention provides a kind of arm support control system, this system comprises described equipment; This system also comprises: the time difference generator, and for described obtain electric time difference and/or dead electricity time difference are provided.
Correspondingly, the invention provides a kind of engineering machinery, this project machinery comprises described system.
Compression shock when the present invention can eliminate jib and starts or stops, can steadily move jib, can extend the application life of element and pipeline simultaneously, the reduction maintenance cost.
Other features and advantages of the present invention will partly be described in detail in the specific embodiment subsequently.
The accompanying drawing explanation
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms the part of manual, is used from explanation the present invention with the following specific embodiment one, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is jib control program schematic diagram in prior art;
Fig. 2 is jib control appliance schematic diagram provided by the invention;
Fig. 3 is arm support control method flow chart provided by the invention;
Fig. 4 is arm support control system schematic diagram provided by the invention;
Fig. 5 is arm support control system example provided by the invention.
Description of reference numerals
1 hydraulic pump 2 remote controllers
3 electric proportional multi-way valve 4 control modules
5 solenoid operated directional valve 6 hydraulic jacks
7 pressure sensor 100 receiving systems
200 300 time difference of control device generators
400 pressure-detecting devices
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
Surge while starting or stoping for fear of jib, the invention provides a kind of jib control appliance, this equipment comprises: receiving system 100, obtain electric time difference and dead electricity time difference between described electric proportional multi-way valve 3 and described solenoid operated directional valve 5 for receiving between solenoid operated directional valve 5 and electric proportional multi-way valve 3; And control device 200, for when jib starts, control described solenoid operated directional valve 5 electric continue described the electric time difference after, described electric proportional multi-way valve 3 electric; And, when jib stops, controlling described electric proportional multi-way valve 3 dead electricity and continue described dead electricity after the time difference, described solenoid operated directional valve 5 dead electricity.By asynchronous by obtaining between electric or dead electricity between electric proportional multi-way valve 3 and solenoid operated directional valve 5, can eliminate the compression shock of jib when starting or stoping.
For to electric time difference or dead electricity time difference are carried out real-time adjustment, described receiving system 100 is also for the outlet pressure value of receiving liquid press pump 1; Described control device 200, also for according to described outlet pressure value, determining whether and have compression shock, in the situation that there is surge, increases described obtain electric time difference and/or dead electricity time difference.
In order to make electricity time difference and/or dead electricity time difference in a certain scope, can set the described threshold value that obtains the electric time difference is first threshold, and the threshold value of described dead electricity time difference is Second Threshold.First threshold and Second Threshold can be arranged according to actual needs.Dynamically adjusting to obtain electric time difference and/or dead electricity during the time difference, may make the electricity time difference surpass first threshold, the dead electricity time difference surpasses Second Threshold, in this case, can adjust in first threshold obtaining the electric time difference, the dead electricity time difference is adjusted in Second Threshold, for example adjusted to half of first threshold the electricity time difference, adjusted to half of Second Threshold the dead electricity time difference.
Correspondingly, the invention provides a kind of arm support control method, as shown in Figure 3, it mainly shows to obtain the adjustment process of electric time difference and dead electricity time difference.Particularly, first judge to such an extent that whether electric time difference t1 is less than or equal to first threshold T1(step 301), if words, maintain t1 constant (step 305), if not, half (step 303) that setting t1 is T1, then determine whether and have surge (step 311).In the situation that it is constant to maintain t1, continue to judge whether dead electricity time difference t2 is less than or equal to Second Threshold T2(step 307), if words, set half (step 309) that t2 equals T2, otherwise determine whether and have surge (step 311), the outlet pressure signal of the hydraulic pump that for example controller receives according to pressure sensor, take built-in algorithm in controller to judge whether to exist compression shock; Programmed algorithm can calculate a pressure mean values according to the pressure signal gathered, and as the certain scope of maximum pressure overpressure average in the pressure signal gathered just is judged as, has compression shock.If there is no surge,, if there is surge in t1, t2 constant (step 313) for it, judge electric proportional multi-way valve whether electric (step 315), if it is electric that electric proportional multi-way valve obtains, t1 increases Δ t(step 317), otherwise t2 increases Δ t(step 319).The value of T1, T2 and Δ t can be set according to the actual needs.
Correspondingly, the invention provides a kind of arm support control system, as shown in Figure 4, comprise receiving system 100, control device 200, time difference generator 300 and pressure-detecting device 400.Time difference generator 300, for described obtain electric time difference and/or dead electricity time difference are provided, pressure-detecting device 400, for detection of the pressure of hydraulic pump outlet.By assisting of pressure-detecting device 400, can dynamically adjust to obtain electric time difference and/or dead electricity time difference, thereby can more effectively avoid compression shock.
Fig. 5 is a kind of arm support control system example provided by the invention, control appliance provided by the present invention can be realized in control module, the time difference generator can be integrated in control module, and pressure-detecting device 400(is pressure sensor 7 for example) can be arranged between the outlet of control module and hydraulic pump 1.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; in technical conceive scope of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can be combined by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible combinations.
In addition, between various embodiment of the present invention, also can carry out any combination, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (11)
1. a jib control appliance, is characterized in that, this equipment comprises:
Receiving system, obtain electric time difference and dead electricity time difference between described electric proportional multi-way valve and described solenoid operated directional valve for receiving between solenoid operated directional valve and electric proportional multi-way valve; And
Control device, for when jib starts, control described solenoid operated directional valve obtain electric continue described the electric time difference after, described electric proportional multi-way valve obtains electric; And, when jib stops, controlling described electric proportional multi-way valve dead electricity and continue described dead electricity after the time difference, described solenoid operated directional valve dead electricity.
2. equipment according to claim 1, is characterized in that, described receiving system is also for the outlet pressure value of receiving liquid press pump; Described control device, also for according to described outlet pressure value, determining whether and have compression shock, in the situation that there is surge, increases described obtain electric time difference and/or dead electricity time difference.
3. equipment according to claim 2, it is characterized in that, the threshold value of described electric time difference is first threshold, and when described the electric time difference be greater than described first threshold, described control device is also for describedly adjusting in described first threshold the electric time difference; The threshold value of described dead electricity time difference is Second Threshold, and when the described dead electricity time difference is greater than described Second Threshold, described control device is also for adjusting to the described dead electricity time difference in described Second Threshold.
4. equipment according to claim 3, is characterized in that, described first threshold be take interior half as described first threshold, and described Second Threshold be take interior half as described Second Threshold.
5. an arm support control method, is characterized in that, the method comprises:
Receive between solenoid operated directional valve and electric proportional multi-way valve and obtain electric time difference and dead electricity time difference between described electric proportional multi-way valve and described solenoid operated directional valve; And
When jib starts, control described solenoid operated directional valve obtain electric continue described the electric time difference after, described electric proportional multi-way valve obtains electric; And, when jib stops, controlling described electric proportional multi-way valve dead electricity and continue described dead electricity after the time difference, described solenoid operated directional valve dead electricity.
6. method according to claim 5, is characterized in that, the method also comprises:
The outlet pressure value of receiving liquid press pump; Determine whether and have compression shock according to described outlet pressure value, in the situation that there is surge, increase described obtain electric time difference and/or dead electricity time difference.
7. method according to claim 6, is characterized in that, the threshold value of described electric time difference is first threshold, when described the electric time difference be greater than described first threshold, will describedly must adjust in described first threshold the electric time difference; The threshold value of described dead electricity time difference is Second Threshold, when the described dead electricity time difference is greater than described Second Threshold, the described dead electricity time difference is adjusted in described Second Threshold.
8. method according to claim 6, is characterized in that, described first threshold be take interior half as described first threshold, and described Second Threshold be take interior half as described Second Threshold.
9. an arm support control system, is characterized in that, this system comprises according to the described equipment of any one in claim 1-4; This system also comprises:
The time difference generator, for providing described obtain electric time difference and/or dead electricity time difference.
10. system according to claim 9, is characterized in that, this system also comprises:
Pressure-detecting device, for detection of the pressure of hydraulic pump outlet.
11. an engineering machinery, is characterized in that, this project machinery comprises according to the described system of claim 9 or 10.
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| CN201310418518.2A CN103470051B (en) | 2013-09-13 | 2013-09-13 | A kind of arm frame control, method, system and engineering machinery |
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| CN201310418518.2A CN103470051B (en) | 2013-09-13 | 2013-09-13 | A kind of arm frame control, method, system and engineering machinery |
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| CN103470051A true CN103470051A (en) | 2013-12-25 |
| CN103470051B CN103470051B (en) | 2015-08-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150101A (en) * | 2016-08-19 | 2016-11-23 | 北汽福田汽车股份有限公司 | The controller of jib, control system, control method and pump truck |
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2013
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| CN2119520U (en) * | 1991-12-14 | 1992-10-21 | 建设部长沙建筑机械研究所 | Electrocontroller for concrete conveying pump |
| JPH1121941A (en) * | 1997-07-01 | 1999-01-26 | Yutani Heavy Ind Ltd | Hydraulic controller for hydraulic backhoe |
| CN1654304A (en) * | 2005-02-01 | 2005-08-17 | 太原重型机械集团有限公司 | Lifting mechanism braking system of hoister |
| CN101172563A (en) * | 2007-11-30 | 2008-05-07 | 三一重工股份有限公司 | Operation controller for engineering machinery telescopic arm frame |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150101A (en) * | 2016-08-19 | 2016-11-23 | 北汽福田汽车股份有限公司 | The controller of jib, control system, control method and pump truck |
| CN106150101B (en) * | 2016-08-19 | 2018-08-07 | 北汽福田汽车股份有限公司 | Controller, control system, control method and the pump truck of arm support |
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| CN103470051B (en) | 2015-08-12 |
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