CN109610551A - Scraper bowl cocurrent control method, device and hydraulic crawler excavator - Google Patents
Scraper bowl cocurrent control method, device and hydraulic crawler excavator Download PDFInfo
- Publication number
- CN109610551A CN109610551A CN201811513669.5A CN201811513669A CN109610551A CN 109610551 A CN109610551 A CN 109610551A CN 201811513669 A CN201811513669 A CN 201811513669A CN 109610551 A CN109610551 A CN 109610551A
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- China
- Prior art keywords
- scraper bowl
- speed
- hydraulic pump
- flow
- interflow
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
- E02F9/2292—Systems with two or more pumps
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Operation Control Of Excavators (AREA)
Abstract
The problem of the present invention relates to scraper bowls to collaborate control technology field, discloses a kind of scraper bowl cocurrent control method, device and hydraulic crawler excavator, solves the speed that can not adjust scraper bowl interflow in the prior art, and then be unable to adjust dipper motion speed.Described device includes: that controller is used to receive the speed-regulating instruction for adjusting scraper bowl speed；According to the speed-regulating instruction, driving signal is sent to electromagnetic proportional valve, to control the interflow flow of the first hydraulic pump output, the driving signal is used to adjust the aperture of converging valve core, and the interflow flow is the flow collaborated in the output flow of first hydraulic pump with the second hydraulic pump；The electromagnetic proportional valve is used for the driving signal according to the controller, adjusts the aperture of the converging valve core；Converging valve core is used to control the interflow flow of the first hydraulic pump output.The embodiment of the present invention is suitable for the control process at scraper bowl interflow.
Description
Technical field
The present invention relates to scraper bowls to collaborate control technology field, and in particular, to a kind of scraper bowl cocurrent control method, device and
Hydraulic crawler excavator.
Background technique
In current most of hydraulic crawler excavator, the parallel connection that the control mode at scraper bowl interflow generally passes through guide's oil circuit is real
It is existing, as shown in Figure 1, the scraper bowl handle 3 of control dipper motion, the secondary pressure of output are respectively acting on scraper bowl spool 1 and interflow
One end of spool 2 pushes scraper bowl spool 1 and converging valve core 2 to commutate respectively, so that the flow that hydraulic pump 4 and hydraulic pump 5 export exists
Collaborated 1 front of scraper bowl spool.Scraper bowl interflow in the prior art mode is single, after the completion of debugging, the movement speed of scraper bowl
It is unable to adjust.
Summary of the invention
The object of the present invention is to provide a kind of scraper bowl cocurrent control method, device and hydraulic crawler excavators, solve existing skill
It the problem of speed at scraper bowl interflow can not be adjusted in art, and then be unable to adjust dipper motion speed, is controlled using electromagnetic proportional valve
The flow of hydraulic pump 5 exports, and then controls the flow at scraper bowl interflow, realizes the control of dipper motion speed.
To achieve the goals above, the embodiment of the present invention provides a kind of scraper bowl interflow control device, and described device includes: control
Device processed, for receiving the speed-regulating instruction for adjusting scraper bowl speed；According to the speed-regulating instruction, driving letter is sent to electromagnetic proportional valve
Number, to control the interflow flow of the first hydraulic pump output, the driving signal is used to adjust the aperture of converging valve core, the interflow
Flow is the flow collaborated in the output flow of first hydraulic pump with the second hydraulic pump；The electromagnetic proportional valve,
For the driving signal according to the controller, the aperture of the converging valve core is adjusted；Converging valve core, it is hydraulic for controlling first
Pump the interflow flow of output.
Further, the controller be also used to according to preset scraper bowl speed and electric current corresponding relationship, search with it is described
The input current of the corresponding electromagnetic proportional valve of scraper bowl speed in speed-regulating instruction, and sent out the input current as driving signal
It send to the electromagnetic proportional valve.
Further, the electromagnetic proportional valve is also used to export corresponding secondary pressure, and root according to the driving signal
The aperture of the converging valve core is adjusted according to the secondary pressure.
Further, described device further include: scraper bowl handle, for receiving input control signal, and according to the input
Control the aperture of Signal Regulation scraper bowl spool；The scraper bowl spool, for controlling first hydraulic pump and described second hydraulic
The total flow of bucket cylinder is inputted behind pump interflow.
Correspondingly, the embodiment of the present invention also provides a kind of scraper bowl cocurrent control method, the method is applied to as described above
Scraper bowl collaborate control device, which comprises receive adjust scraper bowl speed speed-regulating instruction；According to the speed-regulating instruction,
Driving signal is sent to electromagnetic proportional valve, to control the interflow flow of the first hydraulic pump output, the driving signal is for adjusting
The aperture of converging valve core, the interflow flow are to be collaborated in the output flow of first hydraulic pump with the second hydraulic pump
Flow.
Further, described according to the speed-regulating instruction, sending driving signal to electromagnetic proportional valve includes:
According to the corresponding relationship of default scraper bowl speed and electric current, search corresponding with the scraper bowl speed in the speed-regulating instruction
The input current of electromagnetic proportional valve, and the electromagnetic proportional valve is sent to using the input current as driving signal；According to institute
Driving signal is stated, the electromagnetic proportional valve is driven to export corresponding secondary pressure；According to the secondary of electromagnetic proportional valve output
Pressure adjusts the aperture of the converging valve core.
Further, the method also includes: receive input control signal；According to the input control signal, driving shovel
Bucket spool adjusts the total flow of input bucket cylinder behind first hydraulic pump and second hydraulic pump interflow.
Correspondingly, the embodiment of the present invention also provides a kind of hydraulic crawler excavator, the hydraulic crawler excavator includes as described above
Scraper bowl collaborates control device.
Through the above technical solutions, controller can the intelligent input current for adjusting electromagnetic proportional valve, to adjust interflow
The commutation degree of spool, the interflow flow of control the first hydraulic pump output are hydraulic with second after the interflow flow passes through check valve
The flow of pump output is collaborated.Then the scraper bowl spool controlled by scraper bowl handle adjusts first hydraulic pump and described the
The total flow of bucket cylinder is inputted behind two hydraulic pumps interflow.The embodiment of the present invention solves and can not adjust scraper bowl conjunction in the prior art
The speed of stream, and then the problem of be unable to adjust dipper motion speed, the interflow flow of the first hydraulic pump output can be flexibly controlled, into
And the speed at scraper bowl interflow can be adjusted according to different duty requirements, realize the control of dipper motion speed.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of scraper bowl interflow control in the prior art；
Fig. 2 is a kind of structural schematic diagram of scraper bowl interflow control device provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another scraper bowl interflow control device provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of scraper bowl interflow provided in an embodiment of the present invention control；
Fig. 5 is the flow diagram of scraper bowl cocurrent control method provided in an embodiment of the present invention.
Description of symbols
1- scraper bowl spool 2- converging valve core
3- scraper bowl handle the second hydraulic pump of 4-
5- the first hydraulic pump 6- electromagnetic proportional valve
7- controller
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Fig. 2 is a kind of structural schematic diagram of scraper bowl interflow control device provided in an embodiment of the present invention.As shown in Fig. 2, institute
Stating device 20 includes: controller 7, for receiving the speed-regulating instruction for adjusting scraper bowl speed；According to the speed-regulating instruction, to electromagnetism ratio
Example valve sends driving signal, and to control the interflow flow of the first hydraulic pump output, the driving signal is for adjusting converging valve core
Aperture, the interflow flow is the flow collaborated in the output flow of first hydraulic pump with the second hydraulic pump；
The electromagnetic proportional valve 6 adjusts the aperture of the converging valve core for the driving signal according to the controller；Converging valve core
2, for controlling the interflow flow of the first hydraulic pump output.
In addition, as shown in figure 3, described device 20 further include: scraper bowl handle 3, for receiving input control signal, and according to
The input control signal adjusts the aperture of scraper bowl spool；The scraper bowl spool 1, for control first hydraulic pump with it is described
The total flow of bucket cylinder is inputted behind second hydraulic pump interflow.
Wherein, after user's operation scraper bowl handle, scraper bowl handle receives input control signal, the scraper bowl handle output
Secondary pressure corresponding with the input control signal, and pass through the aperture of secondary pressure adjusting scraper bowl spool.The scraper bowl
Spool is according to aperture adjusted, and input is shoveled after controlling the flow interflow of first hydraulic pump and second hydraulic pump output
The total flow of bucket oil cylinder, and then drive bucket motions.
Controller receives the speed-regulating instruction of user's input in embodiments of the present invention, that is, adjusts the instruction of scraper bowl speed, root
According to the corresponding relationship of pre-stored default scraper bowl speed and electric current, electricity corresponding with the scraper bowl speed in the speed-regulating instruction is searched
The input current of magnetic proportioning valve, and it is sent to the electromagnetic proportional valve using the input current as driving signal, such as export
Pwm signal.After the electromagnetic proportional valve receives the input current in the driving signal, according to input current output pair
The secondary pressure answered, and converging valve core movement is pushed according to the secondary pressure, that is, the aperture of the converging valve core is adjusted, to control
Make the interflow flow of the first hydraulic pump output.As shown in figure 4, controller intelligent can adjust electromagnetism due to being required according to user
The input current of proportioning valve, so that the commutation degree of converging valve core is adjusted, the interflow flow of control the first hydraulic pump output, the conjunction
Flow is flowed by being collaborated after check valve with the flow of the second hydraulic pump output.Then the scraper bowl controlled by scraper bowl handle
Spool adjusts the total flow of input bucket cylinder behind first hydraulic pump and second hydraulic pump interflow.It is real through the invention
The interflow flow of the first hydraulic pump output can flexibly be controlled by applying example, and then can adjust scraper bowl interflow according to different duty requirements
Speed, realize dipper motion speed control.
Correspondingly, the embodiment of the present invention also provides a kind of hydraulic crawler excavator, the hydraulic crawler excavator includes above-described embodiment
The scraper bowl collaborates control device.
Correspondingly, Fig. 5 is the flow diagram of scraper bowl cocurrent control method provided in an embodiment of the present invention.As shown in figure 5,
The method is applied to scraper bowl described in above-described embodiment and collaborates control device, and described method includes following steps:
Step 501, the speed-regulating instruction for adjusting scraper bowl speed is received；
Step 502, according to the speed-regulating instruction, driving signal is sent to electromagnetic proportional valve, it is defeated to control the first hydraulic pump
Interflow flow out, the driving signal are used to adjust the aperture of converging valve core, and the interflow flow is hydraulic described first
The flow collaborated in the output flow of pump with the second hydraulic pump.
Wherein, it after receiving the speed-regulating instruction, can be searched according to the corresponding relationship of default scraper bowl speed and electric current
The input current of electromagnetic proportional valve corresponding with the scraper bowl speed in the speed-regulating instruction, and using the input current as driving
Signal is sent to the electromagnetic proportional valve.Then, according to the driving signal, the electromagnetic proportional valve output corresponding two is driven
Secondary pressure, and the secondary pressure exported according to the electromagnetic proportional valve adjust the aperture of the converging valve core, and then described in control
The interflow flow of first hydraulic pump output.
In addition, scraper bowl spool is driven, to adjust described first after passing through the input control signal for receiving scraper bowl handle
The total flow of bucket cylinder is inputted after hydraulic pump and second hydraulic pump interflow.
In particular, control electromagnetic proportional valve can be passed through completely when the output flow of second hydraulic pump is maximum stream flow
The aperture for adjusting converging valve core controls the interflow flow of the first hydraulic pump, and then controls the speed at scraper bowl interflow, realizes scraper bowl
The control of movement speed.
Through the embodiment of the present invention, using the input current of controller flexible modulation electromagnetic proportional valve, to adjust interflow
The commutation degree of spool, the interflow flow of control the first hydraulic pump output are hydraulic with second after the interflow flow passes through check valve
The flow of pump output is collaborated.Then the scraper bowl spool controlled by scraper bowl handle adjusts first hydraulic pump and described the
The total flow of bucket cylinder is inputted behind two hydraulic pumps interflow.The output of the first hydraulic pump can be flexibly controlled through the embodiment of the present invention
Collaborate flow, and then the speed at scraper bowl interflow can be adjusted according to different duty requirements, realizes the control of dipper motion speed.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (8)
1. a kind of scraper bowl collaborates control device characterized by comprising
Controller, for receiving the speed-regulating instruction for adjusting scraper bowl speed；According to the speed-regulating instruction, sends and drive to electromagnetic proportional valve
Dynamic signal, to control the interflow flow of the first hydraulic pump output, the driving signal is used to adjust the aperture of converging valve core, described
Collaborating flow is the flow collaborated in the output flow of first hydraulic pump with the second hydraulic pump；
The electromagnetic proportional valve adjusts the aperture of the converging valve core for the driving signal according to the controller；
Converging valve core, for controlling the interflow flow of the first hydraulic pump output.
2. the apparatus according to claim 1, which is characterized in that the controller is also used to according to default scraper bowl speed and electricity
The corresponding relationship of stream, searches the input current of corresponding with the scraper bowl speed in speed-regulating instruction electromagnetic proportional valve, and by institute
Input current is stated as driving signal and is sent to the electromagnetic proportional valve.
3. the apparatus according to claim 1, which is characterized in that the electromagnetic proportional valve is also used to according to the driving signal
Corresponding secondary pressure is exported, and adjusts the aperture of the converging valve core according to the secondary pressure.
4. the apparatus according to claim 1, which is characterized in that described device further include:
Scraper bowl handle, for receiving input control signal, and according to the aperture of input control signal adjusting scraper bowl spool；
The scraper bowl spool, for inputting the total of bucket cylinder after controlling first hydraulic pump and second hydraulic pump interflow
Flow.
5. a kind of scraper bowl cocurrent control method, which is characterized in that the method is applied to described in any one of the claims 1-4
Scraper bowl collaborate control device, which comprises
Receive the speed-regulating instruction for adjusting scraper bowl speed；
According to the speed-regulating instruction, driving signal is sent to electromagnetic proportional valve, to control the interflow flow of the first hydraulic pump output,
The driving signal is used to adjust the aperture of converging valve core, and the interflow flow is in the output flow of first hydraulic pump
The flow collaborated with the second hydraulic pump.
6. according to right want 5 described in method, which is characterized in that it is described according to the speed-regulating instruction, sent to electromagnetic proportional valve
Driving signal includes:
According to the corresponding relationship of default scraper bowl speed and electric current, electromagnetism corresponding with the scraper bowl speed in the speed-regulating instruction is searched
The input current of proportioning valve, and the electromagnetic proportional valve is sent to using the input current as driving signal；
According to the driving signal, the electromagnetic proportional valve is driven to export corresponding secondary pressure；
According to the secondary pressure that the electromagnetic proportional valve exports, the aperture of the converging valve core is adjusted.
7. according to right want 5 described in method, which is characterized in that the method also includes:
Receive input control signal；
According to the input control signal, after driving scraper bowl spool to adjust first hydraulic pump and second hydraulic pump interflow
Input the total flow of bucket cylinder.
8. a kind of hydraulic crawler excavator, which is characterized in that the hydraulic crawler excavator includes the claim 1-4 described in any item
Scraper bowl collaborates control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811513669.5A CN109610551A (en) | 2018-12-11 | 2018-12-11 | Scraper bowl cocurrent control method, device and hydraulic crawler excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811513669.5A CN109610551A (en) | 2018-12-11 | 2018-12-11 | Scraper bowl cocurrent control method, device and hydraulic crawler excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109610551A true CN109610551A (en) | 2019-04-12 |
Family
ID=66008869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811513669.5A Pending CN109610551A (en) | 2018-12-11 | 2018-12-11 | Scraper bowl cocurrent control method, device and hydraulic crawler excavator |
Country Status (1)
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| CN (1) | CN109610551A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281975A (en) * | 2020-10-20 | 2021-01-29 | 徐州徐工挖掘机械有限公司 | Double-pump confluence control method for excavator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1441171A (en) * | 2002-02-04 | 2003-09-10 | 神钢建设机械株式会社 | Controller for hydraulic operation mechanism and its controlling method |
| CN201538977U (en) * | 2009-09-23 | 2010-08-04 | 北汽福田汽车股份有限公司 | Excavator bucket controller |
| CN102518171A (en) * | 2011-12-31 | 2012-06-27 | 中外合资沃得重工（中国）有限公司 | Converging and accelerating hydraulic system for bucket of excavating machine |
| CN103306329A (en) * | 2013-05-28 | 2013-09-18 | 上海三一重机有限公司 | Control system for micro-controlling hydraulic shear based on excavating machine and method and excavating machine |
| KR101324355B1 (en) * | 2006-12-05 | 2013-11-01 | 두산인프라코어 주식회사 | Hydraulic system for small-sized excavator to improve bucket speed |
-
2018
- 2018-12-11 CN CN201811513669.5A patent/CN109610551A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1441171A (en) * | 2002-02-04 | 2003-09-10 | 神钢建设机械株式会社 | Controller for hydraulic operation mechanism and its controlling method |
| KR101324355B1 (en) * | 2006-12-05 | 2013-11-01 | 두산인프라코어 주식회사 | Hydraulic system for small-sized excavator to improve bucket speed |
| CN201538977U (en) * | 2009-09-23 | 2010-08-04 | 北汽福田汽车股份有限公司 | Excavator bucket controller |
| CN102518171A (en) * | 2011-12-31 | 2012-06-27 | 中外合资沃得重工（中国）有限公司 | Converging and accelerating hydraulic system for bucket of excavating machine |
| CN103306329A (en) * | 2013-05-28 | 2013-09-18 | 上海三一重机有限公司 | Control system for micro-controlling hydraulic shear based on excavating machine and method and excavating machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281975A (en) * | 2020-10-20 | 2021-01-29 | 徐州徐工挖掘机械有限公司 | Double-pump confluence control method for excavator |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190412 |
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| RJ01 | Rejection of invention patent application after publication |