CN102374285B - Speed change system and speed change method for engineering plant - Google Patents
Speed change system and speed change method for engineering plant Download PDFInfo
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- CN102374285B CN102374285B CN201010256934.3A CN201010256934A CN102374285B CN 102374285 B CN102374285 B CN 102374285B CN 201010256934 A CN201010256934 A CN 201010256934A CN 102374285 B CN102374285 B CN 102374285B
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- flexible axle
- control panel
- output shaft
- speed change
- controller
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Abstract
The invention provides a speed change system and a speed change method for an engineering plant. The speed change system comprises an electric control handle, a controller, an electric actuator, a control panel and a manual type speed change control valve, wherein the electric control handle is used for generating a gear shifting signal; the controller is used for inputting the gear shifting signal, and generating a control signal which corresponds to the gear shifting signal; the electric actuator is used for receiving the control signal, and controlling a first flexible shaft and a second flexible shaft to be stretched according to the control signal; the control panel is used for generating rotation under the action of the first flexible shaft and the second flexible shaft; and the manual type speed change control valve is provided with a valve core connected with the control panel, and is used for driving the valve core to shift through the rotation of the control panel and generating a gear shifting operation through the shift of the valve core. By adopting the speed change system and the speed change method for the engineering plant, the electric control handle and the manual type speed change control valve can be combined, the comfort level is increased, and the cost is reduced.
Description
Technical field
The present invention relates to engineering machinery, particularly relate to a kind of speed variator system and method for changing speed of engineering machinery.
Background technique
Engineering machinery, such as loader, excavator etc., be widely used in the engineering fields such as building, road, mine, harbour, and its operating conditions is general more severe.Wherein, the Main Function of loader carries out loading operation, and loading operation is by things such as sandy soil, rock, ores, pours the operation of truck, lorry, shipping container into, certainly, loader also can realize digging operation, unloading operation, tillage operation, fill and lead up operation etc. other function a lot.
Fig. 1 is the structural drawing of the loader in existing engineering machinery, as shown in the figure, loader produces power mainly through motor 101, power passes through transmission system transmission to equipment part and traveling gear part, thus the work of propelling loading machine and walking, wherein the main working parts of equipment part is scraper bowl 102.
Need speed variator system in transmission system, the speed variator system in existing engineering machinery mainly contains two kinds of forms: mechanical type and electric-controlled type.Fig. 2 is the structural drawing of existing machinery formula speed variator system, and as shown in Figure 2, it comprises and being linked in sequence: Joystick 201, control flexible axle 202 and speed change control valve 203.The basic principle of this mechanical type speed variator system is simpler, driver is by Joystick 201, make the control valve rod of control flexible axle 202 push-and-pull speed change control valve 203, thus realize the replacing of different gear, the major defect that this mechanical type controls is: need enough power to pull Joystick, labor intensity is large, and therefore operation comfort is lower, and high-end type seldom adopts.
Fig. 3 is the structural drawing of existing electric-controlled type speed variator system, and as shown in Figure 3, it comprises: gear selector 301, controller 302, electro hydraulic valve 303.Electric-controlled type speed variator system basic functional principle after to be controller 302 process the signal of gear selector 301 and electric control box and principal wire bundle transmission, controls three electromagnet of electro hydraulic valve 303, thus oil circuit control break-make, realizes gearshift function of after the first two one.The exemplary shortcomings of this control mode is, the reliability of electro hydraulic valve and controller is lower, and expensive.
Therefore, the speed variator system of existing engineering machinery, also exists above-mentioned numerous defects, needs further improvement perfect.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of speed variator system and method for changing speed of engineering machinery, can realize the combination of electric control handle and manually operated type speed change control valve, increases comfort level, reduces costs.
To achieve these goals, the invention provides a kind of speed variator system of engineering machinery, comprising:
Electric control handle, for generation of shift signal;
Controller, for inputting described shift signal, and produces the control signal corresponding with described shift signal;
Electric actuator, for receiving described control signal, controls the flexible of the first flexible axle and the second flexible axle according to described control signal;
Control panel, rotates for producing under the effect of described first flexible axle and the second flexible axle;
Manually operated type speed change control valve, has the spool be connected with described control panel, for: the movement being driven described spool by the rotation of described control panel, produces gear-change operation by the mobile of described spool.
Preferably, in above-mentioned speed variator system, the upper end of described control panel one side connects described first flexible axle, and lower end connects described second flexible axle;
The centre of described control panel another side is hinged on a fixed support, and the upper end of described control panel another side connects described spool.
Preferably, in above-mentioned speed variator system, described electric actuator also for: the travel information of described first flexible axle and the second flexible axle is returned to described controller;
Described controller also for: confirm whether gear-change operation completes according to described travel information.
Preferably, in above-mentioned speed variator system, described electric actuator comprises the first motor and the second motor, and described first flexible axle is around on the first output shaft of described first motor, and described second flexible axle is around on the second output shaft of described second motor;
Described control signal comprises: the sense of rotation of described first output shaft and described second output shaft, rotation angle and rotational velocity.
Preferably, in above-mentioned speed variator system, the direction of rotation of described first output shaft and described second output shaft.
To achieve these goals, present invention also offers a kind of method for changing speed of engineering machinery, comprising:
Produce shift signal by electric control handle, and described shift signal is sent to controller;
Described controller produces the control signal corresponding with described shift signal, and described control signal is sent to electric actuator;
Described electric actuator controls the flexible of the first flexible axle and the second flexible axle according to described control signal;
Described first flexible axle and the second flexible axle drive control panel to produce and rotate, and described control panel drives the spool of manually operated type speed change control valve to move, the mobile gear-change operation producing described manually operated type speed change control valve of described spool.
Preferably, in above-mentioned method for changing speed, also comprise:
The travel information of described first flexible axle and the second flexible axle is returned to described controller by described electric actuator;
According to described travel information, described controller confirms whether gear-change operation completes.
Preferably, in above-mentioned method for changing speed, described control signal comprises: the sense of rotation of the first output shaft of the first motor of described electric actuator, rotation angle and rotational velocity, and the sense of rotation of the second output shaft of the second motor of described electric actuator, rotation angle and rotational velocity.
Preferably, in above-mentioned method for changing speed, the direction of rotation of described first output shaft and described second output shaft.
At least there is following technique effect in the embodiment of the present invention:
1) the present invention is by controller and electric actuator, and the electrical signal of electric control handle is converted to performing an action of control panel, and it simulates the action of mechanical handle, thus electric control handle can be matched with manually operated type speed change control valve.
2) compared with mechanical type speed variator system, the present invention can increase operation comfort, reduces operator's labor intensity.
3) the present invention does not adopt the solenoid valve that in electric-controlled type system, problem points is more, can reduce the generation of corresponding problem points, increases reliability and durability, extends lifetime of system.
4) the present invention does not adopt solenoid valve expensive in electric-controlled type system and controller, can reduce costs about 50%.
5) speed variator system of the present invention is through simple refit, can be applied in the engineering machinery such as existing loader easily, highly versatile.
Accompanying drawing explanation
Fig. 1 is the structural drawing of existing loader;
Fig. 2 is the structural drawing of the mechanical type speed variator system of existing engineering machinery;
Fig. 3 is the structural drawing of the electric-controlled type speed variator system of existing engineering machinery;
Fig. 4 is the structural drawing of the speed variator system of the embodiment of the present invention;
Fig. 5 is the structural drawing of the control panel of the embodiment of the present invention;
Fig. 6 is the flow chart of method for changing speed of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technological scheme and advantage clearly, below in conjunction with accompanying drawing, specific embodiment is described in detail.
Fig. 4 is the structural drawing of the speed variator system of the embodiment of the present invention, and as shown in Figure 4, the real example of the present invention provides a kind of speed variator system of engineering machinery, comprising:
Electric control handle 401, for generation of shift signal;
Controller 402, for inputting described shift signal, and produces the control signal corresponding with described shift signal;
Electric actuator 403, for receiving described control signal, controls the flexible of the first flexible axle 404 and the second flexible axle 405 according to described control signal;
Control panel 406, rotates for producing under the effect of described first flexible axle and the second flexible axle;
Manually operated type speed change control valve 407, has the spool be connected with described control panel, for: the movement being driven described spool by the rotation of described control panel, produces gear-change operation by the mobile of described spool.
The present invention, by controller 402 and electric actuator 403, is converted to performing an action of control panel 406 the electrical signal of electric control handle 401, thus electric control handle 401 can be matched with manually operated type speed change control valve 407.
Owing to present invention employs electric control handle 401, only need very little power to carry out gear-change operation, relative to the Joystick of mechanical type speed variator system, can operation comfort be increased, reduce operator's labor intensity.
Owing to present invention employs manually operated type speed change control valve 407, reliable, relative to solenoid valve expensive in electric-controlled type speed variator system and controller, significantly reduce cost, add the competitive ability of product.
Fig. 5 is the structural drawing of the control panel of the embodiment of the present invention, and as shown in Figure 5, the upper end of described control panel 406 1 side connects described first flexible axle 404, and lower end connects described second flexible axle 405; The centre (other position is also passable, as long as the scaling of adjustment two flexible axles) of described control panel another side is hinged on a fixed support 501, and the upper end of described control panel another side connects described spool.The telescopic direction of described first flexible axle 404 and described second flexible axle 405 is contrary, thus described control panel 406 is rotated around fixed support 501, and then band movable valve plug moves.Described control panel 406 can be a sheet metal, also can be other material.
Described electric actuator 403 comprises the first motor and the second motor, and described first flexible axle 404 is around on the first output shaft of described first motor, and described second flexible axle 405 is around on the second output shaft of described second motor; Described control signal comprises: the sense of rotation of described first output shaft and described second output shaft, rotation angle and rotational velocity, wherein, and the direction of rotation of described first output shaft and described second output shaft.
The travel information of described first flexible axle and the second flexible axle is also returned to described controller by described electric actuator 403; According to described travel information, described controller 406 confirms whether gear-change operation completes.
Fig. 6 is the flow chart of method for changing speed of the present invention.As shown in Figure 6, the method for changing speed of a kind of engineering machinery of the embodiment of the present invention, comprising:
Step 601, produces shift signal by electric control handle, and described shift signal is sent to controller;
Step 602, described controller produces the control signal corresponding with described shift signal, and described control signal is sent to electric actuator;
Step 603, described electric actuator controls the flexible of the first flexible axle and the second flexible axle according to described control signal;
Step 604, described first flexible axle and the second flexible axle drive control panel to produce and rotate, and described control panel drives the spool of manually operated type speed change control valve to move, the mobile gear-change operation producing described manually operated type speed change control valve of described spool.
Wherein, also comprise: the travel information of described first flexible axle and the second flexible axle is returned to described controller by described electric actuator; According to described travel information, described controller confirms whether gear-change operation completes.
Visible, speed variator system provided by the invention adopts electric-controlled type handle and can control the final controlling element assembly of two flexible axle push-and-pull strokes.Gearbox control valve adopts the manually operated type speed change control valve in former mechanical type speed variator system.Controller pulls the spool of speed change valve by the flexible axle manipulating final controlling element, to reach the function controlling gearbox speed change.After the internal structure of the signal conversion and electric actuator of considering controller, the specific implementation process of the embodiment of the present invention is as follows:
1., when manipulation electric control handle carries out transforming gear operation, handle can send corresponding electrical signal (shift signal) to controller;
2. after controller receives electrical signal, the program write in advance by inside carries out logical operation, and transmits control signal to final controlling element, controls the rotation angle being tied with the motor output shaft of flexible axle in final controlling element and speed;
3. final controlling element is by information feed back such as flexible axle shift motions (rotation angle of motor output shaft, speed) to controller, and controller judges whether gear shifting operation completes;
4. two flexible axles control a sheet metal by push pull maneuver and rotate around a fixed support, thus drive speed Control valve core to control gearbox to carry out speed change.
As from the foregoing, the embodiment of the present invention has following advantage:
1) the present invention is by controller and electric actuator, and the electrical signal of electric control handle is converted to performing an action of control panel, and it simulates the action of mechanical handle, thus electric control handle can be matched with manually operated type speed change control valve.
2) compared with mechanical type speed variator system, the present invention can increase operation comfort, reduces operator's labor intensity.
3) the present invention does not adopt the solenoid valve that in electric-controlled type system, problem points is more, can reduce the generation of corresponding problem points, increases reliability and durability, extends lifetime of system.
4) the present invention does not adopt solenoid valve expensive in electric-controlled type system and controller, can reduce costs about 50%.
5) speed variator system of the present invention is through simple refit, can be applied in the engineering machinery such as existing loader easily, highly versatile.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a speed variator system for engineering machinery, is characterized in that, comprising:
Electric control handle, for generation of shift signal;
Controller, for inputting described shift signal, and produces the control signal corresponding with described shift signal;
Electric actuator, for receiving described control signal, controls the flexible of the first flexible axle and the second flexible axle according to described control signal;
Control panel, rotates for producing under the effect of described first flexible axle and the second flexible axle;
Manually operated type speed change control valve, there is the spool be connected with described control panel, for: the movement being driven described spool by the rotation of described control panel, gear-change operation is produced by the mobile of described spool, the upper end of described control panel one side connects described first flexible axle, and lower end connects described second flexible axle;
The centre of described control panel another side is hinged on a fixed support, and the upper end of described control panel another side connects described spool, described electric actuator also for: the travel information of described first flexible axle and the second flexible axle is returned to described controller;
Described controller also for: confirm whether gear-change operation completes according to described travel information.
2. speed variator system according to claim 1, it is characterized in that, described electric actuator comprises the first motor and the second motor, and described first flexible axle is around on the first output shaft of described first motor, and described second flexible axle is around on the second output shaft of described second motor;
Described control signal comprises: the sense of rotation of described first output shaft and described second output shaft, rotation angle and rotational velocity.
3. speed variator system according to claim 2, is characterized in that, the direction of rotation of described first output shaft and described second output shaft.
4. a method for changing speed for engineering machinery, is characterized in that, comprising:
Produce shift signal by electric control handle, and described shift signal is sent to controller;
Described controller produces the control signal corresponding with described shift signal, and described control signal is sent to electric actuator;
Described electric actuator controls the flexible of the first flexible axle and the second flexible axle according to described control signal;
Described first flexible axle and the second flexible axle drive control panel to produce and rotate, described control panel drives the spool of manually operated type speed change control valve to move, the mobile gear-change operation producing described manually operated type speed change control valve of described spool, the upper end of described control panel one side connects described first flexible axle, lower end connects described second flexible axle, the centre of described control panel another side is hinged on a fixed support, the upper end of described control panel another side connects described spool, the telescopic direction of described first flexible axle and described second flexible axle is contrary, thus described control panel is rotated around fixed support, and then band movable valve plug moves, also comprise:
The travel information of described first flexible axle and the second flexible axle is returned to described controller by described electric actuator;
According to described travel information, described controller confirms whether gear-change operation completes.
5. method for changing speed according to claim 4, is characterized in that,
Described control signal comprises: the sense of rotation of the first output shaft of the first motor of described electric actuator, rotation angle and rotational velocity, and the sense of rotation of the second output shaft of the second motor of described electric actuator, rotation angle and rotational velocity.
6. method for changing speed according to claim 5, is characterized in that, the direction of rotation of described first output shaft and described second output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010256934.3A CN102374285B (en) | 2010-08-18 | 2010-08-18 | Speed change system and speed change method for engineering plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010256934.3A CN102374285B (en) | 2010-08-18 | 2010-08-18 | Speed change system and speed change method for engineering plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102374285A CN102374285A (en) | 2012-03-14 |
| CN102374285B true CN102374285B (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010256934.3A Expired - Fee Related CN102374285B (en) | 2010-08-18 | 2010-08-18 | Speed change system and speed change method for engineering plant |
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| CN (1) | CN102374285B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322181A (en) * | 2013-07-09 | 2013-09-25 | 山推工程机械股份有限公司 | Electromechanical combination gear-shifting operation system and engineering machinery |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4128161A1 (en) * | 1990-09-06 | 1992-03-12 | Volkswagen Ag | Switchgear for multiple gear alternating gear - of vehicle has spring mechanism, hand switch gear lever |
| JP3727553B2 (en) * | 2001-06-12 | 2005-12-14 | 株式会社クボタ | Work machine operation structure |
| CN2616425Y (en) * | 2003-04-17 | 2004-05-19 | 玉环县环鑫电子离合器厂 | Automobile clutch electronic control device |
| KR100559387B1 (en) * | 2003-10-01 | 2006-03-10 | 현대자동차주식회사 | Shift control apparatus for transmission |
| EP1907730A1 (en) * | 2005-07-27 | 2008-04-09 | Paolo Paparoni | Device to actuate an automotive gear box and system to transform an actuation device by beams in an actuation device by cables |
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- 2010-08-18 CN CN201010256934.3A patent/CN102374285B/en not_active Expired - Fee Related
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| CN102374285A (en) | 2012-03-14 |
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Granted publication date: 20150513 Termination date: 20170818 |