CN104996011B - A kind of intelligent protection control method of rotary cultivator universal joint and change speed gear box - Google Patents
A kind of intelligent protection control method of rotary cultivator universal joint and change speed gear box Download PDFInfo
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- CN104996011B CN104996011B CN201510441985.6A CN201510441985A CN104996011B CN 104996011 B CN104996011 B CN 104996011B CN 201510441985 A CN201510441985 A CN 201510441985A CN 104996011 B CN104996011 B CN 104996011B
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- rotary cultivator
- angular transducer
- tillage cutter
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Abstract
The intelligent protection control system and method for a kind of rotary cultivator universal joint and change speed gear box, the system includes angular transducer, controller, limit switch, settings button, lifting handle, electromagnetic valve and lift arm oil cylinder, angular transducer is arranged in rotary cultivator rotary tillage cutter lift arm Pivot axle, controller is arranged on rotary cultivator fuselage, limit switch is arranged at the selector lever of rotary cultivator rotary tillage cutter or at the clutch of rotary tillage cutter, settings button is arranged on rotary cultivator control panel, angular transducer, limit switch, settings button, electromagnetic valve is connected with controller respectively, lifting handle is connected with electromagnetic valve, lift arm oil cylinder is connected with the lift arm of rotary cultivator rotary tillage cutter by connecting rod.Present invention additionally comprises the intelligent protection control method of a kind of rotary cultivator universal joint and change speed gear box.Using the present invention, rotary cultivator is can control at arable land, two axle clamp angle angle values being connected with universal joint allow maximum less than which, so as to protect universal joint and change speed gear box.
Description
Technical field
The present invention relates to the intelligent protection control system and method for a kind of rotary cultivator universal joint and change speed gear box.
Background technology
Agricultural rotary tiller currently used in the market can run into the rugged situation in arable land at arable land, need often adjustment
The height of cutter, controls rotary cultivator tool cutter rotary tillage depth generally by manual observation manual manipulation handle at work and raises
Highly, cumbersome, it sometimes appear that observing error in judgement, rotary cultivator rotary tillage cutter excessively lifts situation, causes and universal joint
Two axle clamp angle angle values of connection exceed its permission maximum, make cardan drive torque excessive, it is impossible to normal to be driven, when serious
Universal joint may be made to break to scrapping change speed gear box.Accordingly, it would be desirable to a kind of Protection control system is controlling what is be connected with universal joint
The angle of two axles protects the universal joint and change speed gear box of rotary cultivator less than maximum is allowed.
The content of the invention
The technical problem to be solved is to provide the intelligent protection control of a kind of rotary cultivator universal joint and change speed gear box
System and method.
Rotary cultivator will adjust the height of rotary tillage cutter at any time at arable land, and the change of height is by two be connected with universal joint
Axle variable angle determines that the angle of two axles is bigger, and the hoisting depth of rotary tillage cutter is higher, and the born driving torque of universal joint is got over
Greatly, the angle of two axles is usually 15 ° to 20 °, and when more than the angle for allowing, universal joint then normally can not be driven, and may go out
Existing stuck situation, or even damage universal joint and connected change speed gear box.
The technical solution adopted for the present invention to solve the technical problems is：
The intelligent protection control system of the rotary cultivator universal joint and change speed gear box of the present invention, including angular transducer, controller,
Limit switch, settings button, lifting handle, electromagnetic valve and lift arm oil cylinder, the angular transducer are arranged on rotary cultivator rotary tillage
In cutter lift arm Pivot axle, the controller is arranged on rotary cultivator fuselage, and the limit switch is arranged on rotary cultivator
At the selector lever of rotary tillage cutter or at the clutch of rotary tillage cutter, the settings button is arranged on rotary cultivator control panel,
The angular transducer, limit switch, settings button, electromagnetic valve are connected with controller respectively, the lifting handle and electromagnetic valve
It is connected, the electromagnetic valve is used to control lift arm oil cylinder, the lift arm oil cylinder is carried by connecting rod and rotary cultivator rotary tillage cutter
Rise arm to be connected.
Further, the angular transducer is contactless magnetic induction angular transducer.
Further, the contactless magnetic induction angular transducer includes angular transducer magnetic piece and angular transducer sensing
Head, the angular transducer magnetic piece are arranged in rotary cultivator rotary tillage cutter lift arm Pivot axle, the angular transducer sense
Head is answered to be arranged on angular transducer magnetic piece right opposite.
Further, the angular transducer be spindle-type angular transducer, the spindle-type angular transducer by shaft coupling with
Rotary cultivator rotary tillage cutter lift arm Pivot axle connects.
Further, the electromagnetic valve is hydraulic buttery valve.
The intelligent protection control method of the rotary cultivator universal joint and change speed gear box of the present invention：
First rotary cultivator rotary tillage cutter is adjusted manually to extreme higher position is allowed, settings button is pressed, controller is recorded now
The numerical value of angular transducer；
When rotary cultivator in arable land working condition when, at the selector lever of rotary cultivator rotary tillage cutter or rotary tillage cutter clutch
Limit switch at device is normally opened, and controller detects gear-shifting box of rotary cultivator and is in closed form in extension shelves state or clutch
State, if rotary tillage cutter lift arm lifts set angle and allows maximum, controller to receive the signal of angular transducer output
Will judge, to electromagnetic valve export a switching value disconnect electromagnetic valve, limit rotary tillage cutter continue to lift up, protection universal joint and
Change speed gear box；
When rotary cultivator be in bare place working condition when, at the selector lever of rotary cultivator rotary tillage cutter or rotary tillage cutter from
Limit switch at clutch is normally closed, and controller detects gear-shifting box of rotary cultivator in neutral position state or clutch in separation shape
State, because rotary tillage cutter is not ploughed, two axles of universal joint connection do not have rotary motion, and universal joint does not need transmitting torque, simply rises
To the effect similar to joint, the size of angle does not interfere with cardan drive, and electromagnetic valve is only controlled by lifting handle, rotary blade
The uncontrolled device of tool hoisting depth is limited, and rotary tillage cutter can be made to be lifted to extreme higher position, is used for avoiding barrier in bare place.
The present invention adopts angular transducer, detects the rotational angle of rotary cultivator rotary tillage cutter lift arm, when rotary cultivator is ploughed
When rotary cultivator tool cutter reach permission maximum height, two axle clamp angles being connected with universal joint also and meanwhile reach permission maximum angle when,
Controller disconnects electromagnetic valve, rotary tillage cutter is no longer lifted.Angular transducer output signal is analogue signal or numeral letter
Number, the angle position existence function relation of angular transducer angle value and rotary tillage cutter arm support linear with angle.
The present invention adopts controller, for the output signal of acquisition angles sensor, capture setting button and limit switch
Output signal, judged to electromagnetic valve output switch amount control signal control electromagnetic valve break-make.
The present invention adopts settings button, and rotary cultivator tool cutter is arranged together with angular transducer, controller to be allowed to be lifted most
Big height value.Rotary tillage cutter is first adjusted to the maximum for allowing height, i.e. the lift arm position angle of rotary cultivator reaches permission
Maximum, presses settings button, by the storage of angular transducer test value to controller.
The present invention adopts limit switch, for detecting the position of the selector lever of rotary tillage cutter or the clutch of rotary tillage cutter
The position of pedal, judges whether change speed gear box is in released state in neutral state or clutch, that is, whether judge rotary cultivator
In arable land state.
Angular transducer used by of the invention, or be contactless magnetic induction angular transducer, or be spindle-type angular transducer,
Such as with contactless magnetic induction angular transducer, angular transducer magnetic piece is arranged on rotary cultivator rotary tillage cutter lift arm center of rotation
On axle, angular transducer inductive head is arranged on angular transducer magnetic piece axial direction opposite, angular transducer inductive head and angle sensor
Device magnetic piece keeps a certain distance, lifts the dynamic magnetic piece of arm support rotational band and rotates, and angular transducer inductive head senses changes of magnetic field,
Outfan exports the signal of telecommunication corresponding with angle value.The advantage of this angular transducer is that installation accuracy is less demanding.Axle is used such as
Type angular transducer, shaft coupling are arranged in rotary cultivator rotary tillage cutter lift arm Pivot axle, and the angular transducer axle leads to
Cross shaft coupling to be connected with rotary cultivator rotary tillage cutter lift arm Pivot axle.The advantage of this angular transducer is that cost is relatively low.
Using the present invention, rotary cultivator is can control at arable land, two axle clamp angle angle values being connected with universal joint are less than which
Maximum is allowed, when rotary cultivator tool cutter exceedes setting maximum height value, i.e., two axle clamp angles being connected with universal joint are reached setting and permitted
Perhaps during maximum angle, i.e., the electromagnetic valve that closing control rotary cultivator tool cutter is lifted makes rotary tillage cutter no longer raise, it is to avoid to make universal joint
There is stuck situation, protection universal joint and change speed gear box.
The present invention is also applied to similar structures to be needed in farm machinery to be protected or plant equipment.
Description of the drawings
Block diagrams of the Fig. 1 for the intelligent protection control system of the rotary cultivator universal joint and change speed gear box of the present embodiment；
Fig. 2 is the rotary cultivator profile and part-structure schematic diagram using intelligent protection control system shown in Fig. 1.
Specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Referring to the drawings, the intelligent protection control system of the rotary cultivator universal joint and change speed gear box of the present embodiment, including angle is passed
Sensor 1, controller 2, limit switch 3, settings button 4, lifting handle 5, electromagnetic valve 6 and lift arm oil cylinder 7, the angle sensor
Device 1 is arranged in rotary cultivator rotary tillage cutter lift arm Pivot axle, and the controller 2 is arranged on rotary cultivator fuselage, described
Limit switch 3 is arranged at the selector lever of rotary cultivator rotary tillage cutter, and the settings button 4 is arranged on rotary cultivator control panel
On, the angular transducer 1, limit switch 3, settings button 4, electromagnetic valve 6 are connected with controller 2 respectively, the lifting handle 5
It is connected with electromagnetic valve 6, the electromagnetic valve 6 is used to control lift arm oil cylinder 7, and the lift arm oil cylinder 7 passes through connecting rod and rotary cultivator
The lift arm of rotary tillage cutter is connected.
In the present embodiment, the angular transducer 1 is contactless magnetic induction angular transducer, including angular transducer magnetic
Block and angular transducer inductive head, the angular transducer magnetic piece are arranged on rotary cultivator rotary tillage cutter lift arm Pivot axle
On, the angular transducer inductive head is arranged on angular transducer magnetic piece right opposite.
In the present embodiment, the electromagnetic valve 6 is hydraulic buttery valve.
In the present embodiment, the limit switch 3 is also may be installed at the clutch of rotary cultivator rotary tillage cutter.
In the present embodiment, the angular transducer 1 is alternatively spindle-type angular transducer, and the spindle-type angular transducer passes through
Shaft coupling is connected with rotary cultivator rotary tillage cutter lift arm Pivot axle.
The intelligent protection control method of the rotary cultivator universal joint and change speed gear box of the present embodiment：
First rotary cultivator rotary tillage cutter 12 is adjusted manually to extreme higher position is allowed, settings button is pressed, controller records this
When angular transducer numerical value；
When rotary cultivator in arable land working condition when, at the selector lever 8 of rotary cultivator rotary tillage cutter or rotary tillage cutter from
Limit switch at clutch is normally opened, and controller detects gear-shifting box of rotary cultivator and is in closed form in extension shelves state or clutch
State, if rotary tillage cutter lift arm 9 lifts set angle and allows maximum, controller to receive the signal of angular transducer output
Will judge, a switching value be exported to electromagnetic valve and disconnect electromagnetic valve, limit rotary tillage cutter and continue to lift up, protect universal joint 10
With change speed gear box 11；
When rotary cultivator be in bare place working condition when, at the selector lever of rotary cultivator rotary tillage cutter or rotary tillage cutter from
Limit switch at clutch is normally closed, and controller detects gear-shifting box of rotary cultivator in neutral position state or clutch in separation shape
State, because rotary tillage cutter is not ploughed, two axles of universal joint connection do not have rotary motion, and universal joint does not need transmitting torque, simply rises
To the effect similar to joint, the size of angle does not interfere with cardan drive, and electromagnetic valve is only controlled by lifting handle, rotary blade
Tool hoisting depth is unrestricted, and rotary tillage cutter can be made to be lifted to extreme higher position, is used for avoiding barrier in bare place.
In the present embodiment, the rise and fall of rotary cultivator rotary tillage cutter are realized by the rotary motion of lift arm；Carry
The rotary motion for rising arm is realized by the stretching motion of the oil cylinder in the change speed gear box；The stretching motion of the oil cylinder in change speed gear box
It is solenoid valve control.
The present embodiment is first adjusted rotary cultivator rotary tillage cutter to extreme higher position is allowed manually, presses settings button, controller
The angle value of now angular transducer can be recorded；In the course of work of rotary cultivator arable land, such as rotary tillage cutter highly reaches permission most
During high level, that is, the angle value of the angular transducer of angular transducer output angle angle value and controller record is when coincideing, control
Device controls closed electromagnetic valve immediately, is also quit work by the lift arm oil cylinder of solenoid valve control, and rotary tillage cutter cannot continue lifting,
So as to control rotary tillage cutter height, protection universal joint and change speed gear box.
In the present embodiment, the limit switch closure at the selector lever of rotary tillage cutter or at the clutch of rotary tillage cutter is
When inspection rotary tillage cutter is off working state, universal joint does not have transmitting torque, and electromagnetic valve is only controlled by lifting handle；Lifting handss
Under the control of handle, the controllable lift arm oil cylinder of electromagnetic valve makes rotary tillage cutter hit the ceiling.
Claims (5)
1. the intelligent protection control method of a kind of rotary cultivator universal joint and change speed gear box, control system used by the method include that angle is passed
Sensor, controller, limit switch, settings button, lifting handle, electromagnetic valve and lift arm oil cylinder, the angular transducer are installed
In rotary cultivator rotary tillage cutter lift arm Pivot axle, the controller is arranged on rotary cultivator fuselage, the limit switch
At the selector lever of rotary cultivator rotary tillage cutter or at the clutch of rotary tillage cutter, the settings button is arranged on rotary cultivator
On control panel, the angular transducer, limit switch, settings button, electromagnetic valve are connected with controller respectively, the lifting handss
Handle is connected with electromagnetic valve, and the electromagnetic valve is used to control lift arm oil cylinder, and the lift arm oil cylinder is revolved with rotary cultivator by connecting rod
The lift arm of cultivated cutter is connected；It is characterized in that：
First rotary cultivator rotary tillage cutter is adjusted manually to extreme higher position is allowed, settings button is pressed, controller records now angle
The numerical value of sensor；
When rotary cultivator is in arable land working condition, at the selector lever of rotary cultivator rotary tillage cutter or at the clutch of rotary tillage cutter
Limit switch it is normally opened, controller detects gear-shifting box of rotary cultivator in hanging shelves state or clutch in closure state, if
Rotary tillage cutter lift arm lifts set angle allows maximum, controller to receive the signal of angular transducer output and will do
Go out to judge, a switching value is exported to electromagnetic valve and disconnect electromagnetic valve, limit rotary tillage cutter and continue to lift up, protect universal joint and speed change
Case；
When rotary cultivator be in bare place working condition when, at the selector lever of rotary cultivator rotary tillage cutter or rotary tillage cutter clutch
The limit switch at place is normally closed, and controller detects gear-shifting box of rotary cultivator in neutral position state or clutch in released state,
Because rotary tillage cutter is not ploughed, two axles of universal joint connection do not have rotary motion, and universal joint does not need transmitting torque, the size of angle
Cardan drive is not interfered with, electromagnetic valve is only controlled by lifting handle, the uncontrolled device of rotary tillage cutter hoisting depth is limited, and can be made
Rotary tillage cutter lifts extreme higher position, is used for avoiding barrier in bare place.
2. the intelligent protection control method of rotary cultivator universal joint according to claim 1 and change speed gear box, it is characterised in that：Institute
Angular transducer is stated for contactless magnetic induction angular transducer.
3. the intelligent protection control method of rotary cultivator universal joint according to claim 2 and change speed gear box, it is characterised in that：Institute
Stating contactless magnetic induction angular transducer includes angular transducer magnetic piece and angular transducer inductive head, the angular transducer
Magnetic piece is arranged in rotary cultivator rotary tillage cutter lift arm Pivot axle, and the angular transducer inductive head is arranged on angle sensor
Device magnetic piece right opposite.
4. the intelligent protection control method of rotary cultivator universal joint according to claim 1 and change speed gear box, it is characterised in that：Institute
It is spindle-type angular transducer to state angular transducer, and the spindle-type angular transducer is by shaft coupling and the lifting of rotary cultivator rotary tillage cutter
Arm Pivot axle connects.
5. the intelligent protection controlling party of the rotary cultivator universal joint and change speed gear box according to any claim of claim 1-4
Method, it is characterised in that：The electromagnetic valve is hydraulic buttery valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510441985.6A CN104996011B (en) | 2015-07-24 | 2015-07-24 | A kind of intelligent protection control method of rotary cultivator universal joint and change speed gear box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510441985.6A CN104996011B (en) | 2015-07-24 | 2015-07-24 | A kind of intelligent protection control method of rotary cultivator universal joint and change speed gear box |
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| CN104996011A CN104996011A (en) | 2015-10-28 |
| CN104996011B true CN104996011B (en) | 2017-03-29 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106717212B (en) * | 2016-11-27 | 2020-05-01 | 雷沃重工股份有限公司 | Tractor implement management control method |
| CN108142092A (en) * | 2017-12-20 | 2018-06-12 | 广西柳工农业机械股份有限公司 | Centering guide automatic angle-adjusting device and method |
| CN108100080B (en) * | 2017-12-30 | 2020-04-24 | 黄继成 | All-terrain riding type mountain land working machine |
| CN108980232A (en) * | 2018-05-24 | 2018-12-11 | 长沙桑铼特农业机械设备有限公司 | A kind of PTO output protection system and tractor |
| CN109964556B (en) * | 2019-04-11 | 2023-06-27 | 湖南龙舟农机股份有限公司 | Rotary cultivator control system and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104541636A (en) * | 2014-12-30 | 2015-04-29 | 江苏大学 | Electric control method and electric control device for adjustment of hydraulic suspension position of tractor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0724487B2 (en) * | 1987-09-04 | 1995-03-22 | 井関農機株式会社 | Feed back controller for ground work machine |
| JPH0767407A (en) * | 1994-08-08 | 1995-03-14 | Iseki & Co Ltd | Lift-controlling apparatus for working machine of tractor |
| KR20010068108A (en) * | 2001-04-24 | 2001-07-13 | 김중호 | rotavator |
| CN204810833U (en) * | 2015-07-24 | 2015-12-02 | 李惠远 | Protection control system of rotary cultivator universal joint and gearbox |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104541636A (en) * | 2014-12-30 | 2015-04-29 | 江苏大学 | Electric control method and electric control device for adjustment of hydraulic suspension position of tractor |
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