CN103588097B - A kind of lift controlling system - Google Patents
A kind of lift controlling system Download PDFInfo
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- CN103588097B CN103588097B CN201210292873.5A CN201210292873A CN103588097B CN 103588097 B CN103588097 B CN 103588097B CN 201210292873 A CN201210292873 A CN 201210292873A CN 103588097 B CN103588097 B CN 103588097B
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Abstract
The invention discloses a kind of lift controlling system, relate to hoisting crane technical field.This lift controlling system comprises handle, controllable capacity pump, variable-dis-placement motor, driving engine and reel, handle is coupled respectively with controllable capacity pump, variable-dis-placement motor and driving engine, controllable capacity pump, variable-dis-placement motor and driving engine are coupled with reel respectively, and handle carries out speed governing by control variable pump, driving engine and variable-dis-placement motor to reel.The present invention is by carrying out speed governing by handle control variable pump, driving engine and variable-dis-placement motor to reel, do not need other function unit, the mode operating process that controls to hoist of this handle is simple, reduce the manipulation strength of driver, avoid the situation of multiple function unit mismate, thus improve the stationarity that hoists.
Description
Technical field
The present invention relates to hoisting crane technical field, particularly a kind of lift controlling system.
Background technology
Lift controlling system is an important component part of hoisting crane, is the basic element of character making article obtain dipping and heaving.The quality of lift controlling system work will directly affect the serviceability of whole hoisting crane.
Existing lift controlling system as shown in Figure 1, lift controlling system comprises handle 1, controllable capacity pump 2, variable-dis-placement motor 3, driving engine 4, reel 5 and Das Gaspedal 6, handle 1 is coupled respectively with controllable capacity pump 2, variable-dis-placement motor 3, Das Gaspedal 6 is coupled with driving engine 4, controllable capacity pump 2, variable-dis-placement motor 3 and driving engine 4 are coupled with reel 5 respectively, by handle 1 control variable pump 2 and variable-dis-placement motor 3, control driving engine 4 by Das Gaspedal 6, finally realize the speed governing to reel 5.
In above-mentioned lift controlling system speed regulation process, need operating handle and Das Gaspedal simultaneously, the two coordinates could realize speed governing, operating process more complicated, operating experience for driver requires higher, be easy to the situation occurring handle and Das Gaspedal mismate, thus the stationarity that causes hoisting is poor.
Summary of the invention
An embodiment of the present invention technical matters to be solved is: provide a kind of lift controlling system, to solve the problem of complicated operation and the stationarity difference that hoists existed in lift controlling system speed regulation process.
According to a kind of lift controlling system that an aspect of the embodiment of the present invention provides, comprise handle, controllable capacity pump, variable-dis-placement motor, driving engine and reel, described handle is coupled respectively with described controllable capacity pump, described variable-dis-placement motor and described driving engine, described controllable capacity pump, described variable-dis-placement motor and described driving engine are coupled with described reel respectively, and described handle carries out speed governing by controlling described controllable capacity pump, described driving engine and described variable-dis-placement motor to described reel.
Preferably, the order that described handle controls to start is described controllable capacity pump, described driving engine, described variable-dis-placement motor.
Preferably, described lift controlling system also comprises Das Gaspedal and selects button, described one end of button of selecting is coupled with described Das Gaspedal and described handle, the described other end of button of selecting is coupled with described driving engine, described in select button to be used for determining to control by described handle or by described Das Gaspedal described driving engine.
Preferably, described controllable capacity pump comprises pump stroking mechanism, and described handle regulates described variable capacity of pump by controlling described pump stroking mechanism.
Preferably, described variable-dis-placement motor comprises motor stroking mechanism, and described handle regulates the discharge capacity of described variable-dis-placement motor by controlling described motor stroking mechanism.
Preferably, described driving engine comprises speed variable mechanism, and described handle regulates the rotating speed of described driving engine by controlling described speed variable mechanism.
Preferably, described lift controlling system also comprises controller, described controller exports control signal according to the speed-regulating signal of described handle to described controllable capacity pump, described driving engine and described variable-dis-placement motor, to carry out speed governing by controlling described controllable capacity pump, described driving engine and described variable-dis-placement motor to described reel.
Preferably, described controller is according to the speed-regulating signal of described handle, export control signal in the first starting point, the second starting point and the 3rd starting point respectively to described controllable capacity pump, described driving engine and described variable-dis-placement motor, described second starting point is greater than described first starting point and is less than described 3rd starting point.
Preferably, described controllable capacity pump comprises pump stroking mechanism, and described controller exports control signal, to regulate described variable capacity of pump according to the speed-regulating signal of described handle to described pump stroking mechanism.
Preferably, described variable-dis-placement motor comprises motor stroking mechanism, and described controller exports control signal, to regulate the discharge capacity of described variable-dis-placement motor according to the speed-regulating signal of described handle to described motor stroking mechanism.
Preferably, described driving engine comprises speed variable mechanism, and described controller exports control signal, to regulate the rotating speed of described driving engine according to the speed-regulating signal of described handle to described speed variable mechanism.
Preferably, described lift controlling system also comprises Das Gaspedal, and described Das Gaspedal is coupled with described controller, and described controller is also used for determining to control by described handle or by described Das Gaspedal described driving engine.
Lift controlling system provided by the invention, by handle control variable pump, driving engine and variable-dis-placement motor, speed governing is carried out to reel, do not need other function unit, the mode operating process that controls to hoist of this handle is simple, reduce the manipulation strength of driver, avoid the situation of multiple function unit mismate, thus improve the stationarity that hoists.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of lift controlling system in prior art;
Fig. 2 is the constructional drawing of an embodiment of lift controlling system of the present invention.
Fig. 3 is the structural representation of another embodiment of lift controlling system of the present invention.
Fig. 4 is the structural representation of another embodiment of lift controlling system of the present invention.
Fig. 5 is handle controlling curve schematic diagram in one embodiment of the invention.
Fig. 6 is variable capacity of pump and the characteristic curve schematic diagram controlling electric current in one embodiment of the invention.
Fig. 7 is the discharge capacity of variable-dis-placement motor in one embodiment of the invention and the characteristic curve schematic diagram controlling electric current.
Fig. 8 is the structural representation of another embodiment of lift controlling system of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit the scope of the invention.
Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, described technology, method and apparatus should be regarded as a part of authorizing specification sheets.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
Fig. 2 is the constructional drawing of an embodiment of lift controlling system of the present invention.As shown in Figure 2, the lift controlling system of this embodiment comprises: handle 1, controllable capacity pump 2, variable-dis-placement motor 3, driving engine 4 and reel 5, handle 1 is coupled respectively with controllable capacity pump 2, variable-dis-placement motor 3 and driving engine 4, controllable capacity pump 2, variable-dis-placement motor 3 and driving engine 4 are coupled with reel 5 respectively, and handle 1 carries out speed governing by control variable pump 2, driving engine 4 and variable-dis-placement motor 3 pairs of reels 5.
Above-mentioned handle 1 is the initial input end of control process, and driver is realized the rising of lift controlling system by the change in location of control handle 1, fallen and speeds control etc.In order to improve the stationarity that hoists, the order that handle 1 controls to start can be controllable capacity pump 2, driving engine 4, variable-dis-placement motor 3.Such as, if the output of handle 1 comprises the first point, the second starting point and the 3rd starting point, second starting point is greater than the first starting point and is less than the 3rd starting point, the occurrence of starting point can experimentally test or experience is determined, handle starts control variable pump 2 in the first starting point, starts to control driving engine 4 in the second starting point, starts control variable motor 3 in the 3rd starting point, according to above-mentioned control sequence, the stationarity of structure in the process of hoisting that hoist can be improved.
Above-mentioned controllable capacity pump 2 can be the variable pump of discharge capacity, comprises pump stroking mechanism, such as variable electromagnet, and handle 1, can the discharge capacity of regulated variable pump 2 by changing pump stroking mechanism.
Above-mentioned variable-dis-placement motor 3 can be the variable motor of discharge capacity, comprises motor stroking mechanism, such as variable electromagnet, and handle 1 can the discharge capacity of regulated variable motor 3 by controlling motor stroking mechanism.
Above-mentioned driving engine 4 can comprise speed variable mechanism, and handle 1 regulates the rotating speed of driving engine 4 by controlling speed variable mechanism.
It will be appreciated by those skilled in the art that the change of controllable capacity pump 2 and variable-dis-placement motor 3 discharge capacity and driving engine 4 rotating speed can affect and regulate the rotating speed of reel 5.
In above-described embodiment, by handle control variable pump, driving engine and variable-dis-placement motor, speed governing is carried out to reel, do not need other function unit, the mode operating process that controls to hoist of this handle is simple, reduce the manipulation strength of driver, avoid the situation of multiple function unit mismate, thus improve the stationarity that hoists, especially in large-tonnage object hoisting process, higher to the stability requirement that hoists, the lift controlling system adopting the present embodiment to provide can significantly improve the stationarity that hoists, and significantly reduces the manipulation strength of driver.
Fig. 3 is the structural representation of another embodiment of lift controlling system of the present invention.As shown in Figure 3, the lift controlling system of this embodiment also comprises Das Gaspedal 6 and selects button 7, a kind of set-up mode of button 7 is selected to be, one end of button 7 is selected to be coupled with handle 1 and Das Gaspedal 6, the other end is coupled with driving engine 4, select button 7 to be used for determining to control by handle 1 or by Das Gaspedal 6 pairs of driving engines 4, preferentially can be controlled driving engine 4 by handle 1 under default situations.When selecting button 7 to press, handle 1 is communicated with driving engine 4, and controlled by handle 1 pair of driving engine 4, when selecting button 7 to upspring, Das Gaspedal 6 is communicated with driving engine 4, is controlled by Das Gaspedal 6 pairs of driving engines 4.
The lift controlling system of above-described embodiment controls except providing above-mentioned handle the mode that hoists, and additionally provides another kind of handle and Das Gaspedal mixed-control mode, and can realize taking over seamlessly of two kinds of modes.
Fig. 4 is the structural representation of another embodiment of lift controlling system of the present invention.As shown in Figure 4, the lift controlling system of this embodiment also comprises controller 8, a kind of set-up mode of controller 8 can be coupled with handle 1 for one end of controller 8, the other end is coupled with controllable capacity pump 2, driving engine 4 and variable-dis-placement motor 3 respectively, controller 8 exports control signal according to the speed-regulating signal of handle 1 to controllable capacity pump 2, driving engine 4 and variable-dis-placement motor 3, to carry out speed governing by control variable pump 2, driving engine 4 and variable-dis-placement motor 3 pairs of reels 5.
Controllable capacity pump 2 comprises pump stroking mechanism, and controller 8 exports control signal, so that the discharge capacity of regulated variable pump 2 according to the speed-regulating signal of handle 1 to pump stroking mechanism.
Variable-dis-placement motor 3 comprises motor stroking mechanism, and controller 8 exports control signal, so that the discharge capacity of regulated variable motor 3 according to the speed-regulating signal of handle 1 to motor stroking mechanism.
Driving engine 4 comprises speed variable mechanism, and controller 8 exports control signal, to regulate the rotating speed of driving engine 4 according to the speed-regulating signal of handle 1 to speed variable mechanism.
In order to improve the stationarity that hoists, controller 8 is according to the speed-regulating signal of handle 1, control signal is exported respectively to controllable capacity pump 2, driving engine 4 and variable-dis-placement motor 3 in the first starting point, the second starting point and the 3rd starting point, second starting point is greater than the first starting point and is less than the 3rd starting point, according to above-mentioned control sequence, the stationarity of structure in the process of hoisting that hoist can be improved.
Fig. 5 is above-mentioned handle controlling curve schematic diagram, abscissa x represents the speed-regulating signal that handle 1 exports, it can be the displacement information of handle 1, ordinate y1 represents the control electric current that controller 8 exports to controllable capacity pump 2 and variable-dis-placement motor 3, ordinate y2 represents the rotating speed of driving engine 4, due to the control electric current of controller 8 and the rotating speed of driving engine 4 linear, therefore, ordinate y2 represents the relation of the control electric current of speed-regulating signal and controller 8 pairs of driving engines 4 with the rotating speed of driving engine 4.As can be seen from above-mentioned controlling curve schematic diagram:
When handle 1 export speed-regulating signal cross dead band reach the first starting point (a point) time, controller 8 to pump stroking mechanism export control electric current, control range of current can be 200 ~ 600mA(milliampere).Variable capacity of pump as shown in Figure 6 can be found out with the characteristic curve controlling electric current, and control electric current when 200 ~ 600mA range, variable capacity of pump increases to maximum from zero.
When the speed-regulating signal that handle 1 exports reaches the second starting point (c point), controller 8 can pass through CAN(ControllerAreaNetwork, controller local area network) bus exports control signal to driving engine 4, engine speed is at 800 ~ 1800r/min(rev/min) scope changes.
When the speed-regulating signal that handle 1 exports reaches the 3rd starting point (b point), controller 8 exports to motor stroking mechanism and controls electric current, and controlling range of current can be 200 ~ 600mA.The discharge capacity of variable-dis-placement motor as shown in Figure 7 can be found out with the characteristic curve controlling electric current, and control electric current when 200 ~ 600mA range, the discharge capacity of variable-dis-placement motor reduces to the minimum value of setting from maxim.
It can also be seen that from above-mentioned controlling curve schematic diagram, controlling electric current is continually varying, and therefore, the change of speed regulation process medium velocity is continuous print, not stepped, achieves stepless time adjustment.
In above-described embodiment, by controller control variable pump, driving engine and variable-dis-placement motor, speed governing is carried out to reel by handle, do not need other function unit, the mode operating process that controls to hoist of this handle is simple, reduce the manipulation strength of driver, avoid the situation of multiple function unit mismate, thus improve the stationarity that hoists, especially in large-tonnage object hoisting process, higher to the stability requirement that hoists, the lift controlling system adopting the present embodiment to provide can significantly improve the stationarity that hoists, and significantly reduces the manipulation strength of driver.
Fig. 8 is the structural representation of another embodiment of lift controlling system of the present invention.As shown in Figure 8, the lift controlling system of this embodiment also comprises Das Gaspedal 6, one end that controller 8 is coupled with handle 1 is also coupled with Das Gaspedal 6, controller 8 is also used for determining to control by handle 1 or by Das Gaspedal 6 pairs of driving engines 4, preferentially can be controlled driving engine 4 under default situations by handle 1.
The lift controlling system of above-described embodiment controls except providing above-mentioned handle the mode that hoists, and additionally provides another kind of handle and Das Gaspedal mixed-control mode, and can realize taking over seamlessly of two kinds of modes.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory (ROM), disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a lift controlling system, comprise handle (1), controllable capacity pump (2), variable-dis-placement motor (3), driving engine (4) and reel (5), it is characterized in that, described handle (1) and described controllable capacity pump (2), described variable-dis-placement motor (3) and described driving engine (4) are coupled respectively, described controllable capacity pump (2), described variable-dis-placement motor (3) and described driving engine (4) are coupled with described reel (5) respectively, described handle (1) is by controlling described controllable capacity pump (2), described driving engine (4) and described variable-dis-placement motor (3) carry out speed governing to described reel (5), to realize rising of lift controlling system, fall and speeds control.
2. lift controlling system according to claim 1, is characterized in that, the order that described handle (1) controls to start is described controllable capacity pump (2), described driving engine (4), described variable-dis-placement motor (3).
3. lift controlling system according to claim 1, it is characterized in that, described lift controlling system also comprises Das Gaspedal (6) and selects button (7), described one end of button (7) of selecting is coupled with described Das Gaspedal (6) and described handle (1), the described other end of button (7) of selecting is coupled with described driving engine (4), described in select button (7) to be used for determining to control by described handle (1) or by described Das Gaspedal (6) described driving engine (4).
4. lift controlling system according to claim 1, is characterized in that, described controllable capacity pump (2) comprises pump stroking mechanism, and described handle (1) regulates the discharge capacity of described controllable capacity pump (2) by controlling described pump stroking mechanism.
5. lift controlling system according to claim 1, it is characterized in that, described variable-dis-placement motor (3) comprises motor stroking mechanism, and described handle (1) regulates the discharge capacity of described variable-dis-placement motor (3) by controlling described motor stroking mechanism.
6. lift controlling system according to claim 1, it is characterized in that, described driving engine (4) comprises speed variable mechanism, and described handle (1) regulates the rotating speed of described driving engine (4) by controlling described speed variable mechanism.
7. lift controlling system according to claim 1, it is characterized in that, described lift controlling system also comprises controller (8), described controller (8) exports control signal according to the speed-regulating signal of described handle (1) to described controllable capacity pump (2), described driving engine (4) and described variable-dis-placement motor (3), to carry out speed governing by controlling described controllable capacity pump (2), described driving engine (4) and described variable-dis-placement motor (3) to described reel (5).
8. lift controlling system according to claim 7, it is characterized in that, described controller (8) is according to the speed-regulating signal of described handle (1), export control signal in the first starting point, the second starting point and the 3rd starting point respectively to described controllable capacity pump (2), described driving engine (4) and described variable-dis-placement motor (3), described second starting point is greater than described first starting point and is less than described 3rd starting point.
9. lift controlling system according to claim 7, it is characterized in that, described controllable capacity pump (2) comprises pump stroking mechanism, described controller (8) exports control signal, to regulate the discharge capacity of described controllable capacity pump (2) according to the speed-regulating signal of described handle (1) to described pump stroking mechanism.
10. lift controlling system according to claim 7, it is characterized in that, described variable-dis-placement motor (3) comprises motor stroking mechanism, described controller (8) exports control signal, to regulate the discharge capacity of described variable-dis-placement motor (3) according to the speed-regulating signal of described handle (1) to described motor stroking mechanism.
11. lift controlling systems according to claim 7, it is characterized in that, described driving engine (4) comprises speed variable mechanism, described controller (8) exports control signal, to regulate the rotating speed of described driving engine (4) according to the speed-regulating signal of described handle (1) to described speed variable mechanism.
12. lift controlling systems according to claim 7, it is characterized in that, described lift controlling system also comprises Das Gaspedal (6), described Das Gaspedal (6) is coupled with described controller (8), and described controller (8) is also used for determining to control by described handle (1) or by described Das Gaspedal (6) described driving engine (4).
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| CN201210292873.5A CN103588097B (en) | 2012-08-17 | 2012-08-17 | A kind of lift controlling system |
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| CN201210292873.5A CN103588097B (en) | 2012-08-17 | 2012-08-17 | A kind of lift controlling system |
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| CN103588097B true CN103588097B (en) | 2015-12-02 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4788820A (en) * | 1987-05-15 | 1988-12-06 | Kabushiki Kaisha Kobe Seiko Sho | Hydraulic circuit for large crane |
| CN2743316Y (en) * | 2004-10-26 | 2005-11-30 | 汤保昌 | Angle measuring type single handle grab control system |
| EP1022247B1 (en) * | 1999-01-20 | 2007-04-18 | Manitowoc Crane Companies, Inc. | Method for operating a liftcrane |
| CN200946070Y (en) * | 2006-08-18 | 2007-09-12 | 上海三一科技有限公司 | Secondary lifting control device of closed hydraulic loop crane |
| CN200946069Y (en) * | 2006-08-18 | 2007-09-12 | 上海三一科技有限公司 | Pedrail crane master-auxiliary hoister synchronous control device |
| CN200978188Y (en) * | 2006-08-18 | 2007-11-21 | 上海三一科技有限公司 | Engine negative torsional moment controlling device in enclosed hydraulic circuit crane |
| CN201132745Y (en) * | 2007-11-06 | 2008-10-15 | 泰安市硕力液压设备厂 | Hydraulic lifting device for column crane |
| CN102491176A (en) * | 2011-12-15 | 2012-06-13 | 中联重科股份有限公司 | Crane rotation control method, device, system and crane |
| CN101993006B (en) * | 2010-10-12 | 2012-07-04 | 三一汽车起重机械有限公司 | Automobile crane and energy-saving control method and energy-saving control system thereof |
-
2012
- 2012-08-17 CN CN201210292873.5A patent/CN103588097B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4788820A (en) * | 1987-05-15 | 1988-12-06 | Kabushiki Kaisha Kobe Seiko Sho | Hydraulic circuit for large crane |
| EP1022247B1 (en) * | 1999-01-20 | 2007-04-18 | Manitowoc Crane Companies, Inc. | Method for operating a liftcrane |
| CN2743316Y (en) * | 2004-10-26 | 2005-11-30 | 汤保昌 | Angle measuring type single handle grab control system |
| CN200946070Y (en) * | 2006-08-18 | 2007-09-12 | 上海三一科技有限公司 | Secondary lifting control device of closed hydraulic loop crane |
| CN200946069Y (en) * | 2006-08-18 | 2007-09-12 | 上海三一科技有限公司 | Pedrail crane master-auxiliary hoister synchronous control device |
| CN200978188Y (en) * | 2006-08-18 | 2007-11-21 | 上海三一科技有限公司 | Engine negative torsional moment controlling device in enclosed hydraulic circuit crane |
| CN201132745Y (en) * | 2007-11-06 | 2008-10-15 | 泰安市硕力液压设备厂 | Hydraulic lifting device for column crane |
| CN101993006B (en) * | 2010-10-12 | 2012-07-04 | 三一汽车起重机械有限公司 | Automobile crane and energy-saving control method and energy-saving control system thereof |
| CN102491176A (en) * | 2011-12-15 | 2012-06-13 | 中联重科股份有限公司 | Crane rotation control method, device, system and crane |
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