CN106900290A - A kind of drive system and its control method for threshing cylinder - Google Patents
A kind of drive system and its control method for threshing cylinder Download PDFInfo
- Publication number
- CN106900290A CN106900290A CN201710099635.5A CN201710099635A CN106900290A CN 106900290 A CN106900290 A CN 106900290A CN 201710099635 A CN201710099635 A CN 201710099635A CN 106900290 A CN106900290 A CN 106900290A
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- Prior art keywords
- threshing cylinder
- speed
- hydraulic pump
- display
- electrical control
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/56—Driving mechanisms for the threshing parts
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/58—Control devices; Brakes; Bearings
Abstract
A kind of drive system and its control method for threshing cylinder, including threshing cylinder, threshing cylinder drive mechanism and threshing cylinder rotation speed control mechanism, engine is connected with threshing cylinder drive mechanism, threshing cylinder rotation speed control mechanism includes the display for display driving system operational factor and state, obtain the Engine ECU of engine speed, the center ECU processed the signal for receiving and the threshing cylinder speed probe for detecting threshing cylinder operating mode, speed of travel sensor, pressure sensor, the center ECU outputs signal to threshing cylinder drive mechanism after receiving input signal using pid control algorithm, by the rotating speed for adjusting the output flow of electrical control hydraulic pump in threshing cylinder drive mechanism to change hydraulic motor, adjust the actual speed of threshing cylinder;The system can adjust threshing cylinder rotating speed on the premise of the speed of travel is not changed, and reliability easy to adjust reduces the fault rate of system.
Description
Technical field
The present invention relates to agricultural mechanical field, specifically a kind of drive system and its controlling party for threshing cylinder
Method.
Background technology
Domestic combined harvester versatility is strengthened, a tractor serves several purposes, and threshing cylinder rotating speed needs to adapt to various crop, and this will
Ask threshing cylinder rotational speed regulation convenient, and setting speed can be maintained, threshing cylinder rotating speed is set up before work, has material to feed
When, engine speed can accordingly decline, and now threshing cylinder rotating speed declines therewith, influence Threshing, current threshing cylinder
Revolution speed control system is to maintain threshing cylinder stabilization of speed in the regulation speed of travel, and control system is complicated, be not suitable with mesh
Preceding demand, the system can in time be adjusted threshing cylinder drive system to adjust threshing cylinder turn when engine speed changes
Speed, keeps stabilization of speed, and the regulation of running gear, reliability easy to adjust are not related to.
The content of the invention
The technical problem to be solved in the present invention is:A kind of drive system and its control method for threshing cylinder is provided,
When engine speed changes, threshing cylinder drive system is adjusted in time to adjust threshing cylinder rotating speed, keep stabilization of speed, no
It is related to the regulation of running gear, reliability easy to adjust.
To achieve these goals, the technical solution adopted by the present invention is:A kind of drive system for threshing cylinder, should
Threshing cylinder drive system is arranged on combined harvester, and the system includes threshing cylinder, threshing cylinder drive mechanism and threshing
Drum rotation speed controlling organization, engine is connected with the threshing cylinder drive mechanism for driving threshing cylinder to rotate, the threshing roll
Cylinder drive mechanism includes the electrical control hydraulic pump, hydraulic motor and the gearbox that are connected successively by fluid pressure line, engine direct
Connect and be connected with electrical control hydraulic pump, the output end of gearbox is directly connected with threshing cylinder;The gearbox is two grades of decelerations
Case, slows down to increase and turns round, and improves the driving force of drive system;The threshing cylinder rotation speed control mechanism includes being used for display driving system
The center that the display of operational factor and state, the Engine ECU for obtaining engine speed, the signal to receiving are processed
ECU and threshing cylinder speed probe, speed of travel sensor, pressure sensor for detecting threshing cylinder operating mode, it is described
Engine ECU and threshing cylinder speed probe are connected to display by CAN module, and display output end is total by CAN
Line is connected to the input port of center ECU, the input port of center ECU also with the pressure sensor being arranged on electrical control hydraulic pump
It is connected, obtains the operating pressure and return pressure of electrical control hydraulic pump, and the signal that pressure sensor is obtained is sent to center
ECU;The input port of center ECU is also connected with speed of travel sensor, speed of travel sensor be arranged on be provided with this take off
On the combined harvester of grain drum driven system, specific installation site should be with those skilled in the art according to specific installation process
It is determined, speed of travel sensor obtains the speed of travel of the combined harvester for being provided with the threshing cylinder drive system,
And center ECU is passed the signal to, the output port of center ECU is connected with electrical control hydraulic pump;The center ECU receives letter
Electrical control hydraulic pump is outputed signal to using pid control algorithm after number, liquid is changed by adjusting the output flow of electrical control hydraulic pump
The rotating speed of pressure motor, adjusts the actual speed of threshing cylinder;
Preferably, the threshing cylinder speed probe is arranged on threshing cylinder, is obtained the actual speed of threshing cylinder and is shown
Show over the display, the rotating speed of target of threshing cylinder is also shown on display, and be provided with regulation threshing cylinder rotating speed of target
Regulation button and ACK button, by adjust button adjust threshing cylinder rotating speed of target, pressed by confirmation after the completion of regulation
Button confirms that the rotating speed of target after display will confirm that is sent to center ECU;
Preferably, the button of control threshing cylinder rotation speed control mechanism start and stop is additionally provided with the display, is pressed
Control signal is sent to center ECU by display after button, controls the start and stop of threshing cylinder rotation speed control mechanism, again
Threshing cylinder rotation speed control mechanism acquiescence last time input numerical value during startup;
Preferably, the center ECU passes through serial ports by data output to PC, storage information;
Preferably, the electrical control hydraulic pump constitutes closed system with hydraulic motor, and engine threshing cylinder rotation speed control mechanism is not
During startup, electric-controlled hydraulic POF is zero, and hydraulic motor output speed is zero, and threshing cylinder actual speed is zero;
A kind of control method of drive system for threshing cylinder, comprises the following steps,
Step one:To electrical control hydraulic pump, electrical control hydraulic pump drives hydraulic motor rotation to engine output power, and hydraulic motor passes through
Gearbox drives threshing cylinder rotation;
Step 2:The start button on display is pressed, center ECU judges that engine speed is after enabling signal is received
It is no in working range, if engine speed is in working range, threshing cylinder rotation speed control mechanism start, jump to step
Three;If engine speed is not in working range, threshing cylinder rotation speed control mechanism does not start, until engine speed reaches
After working range, threshing cylinder rotation speed control mechanism starts, then jumps to step 3;
Step 3:Be sent to for the actual speed of threshing cylinder, engine speed by threshing cylinder speed probe and Engine ECU
Display, and show over the display;The rotating speed of target regulation button that regulation is set over the display adjusts the mesh of threshing cylinder
Mark rotating speed, clicks on and sets after ACK button over the display confirms display by the actual speed of threshing cylinder, rotating speed of target
And the signal of engine speed is sent to center ECU;
Step 4:Center ECU compares the rotating speed of target of threshing cylinder and the difference of actual speed, is exported using pid control algorithm
Signal adjusts the output flow of electrical control hydraulic pump to electrical control hydraulic pump, changes hydraulic motor rotary speed, adjusts threshing cylinder rotating speed,
Keep threshing cylinder actual speed being set in error range with the difference of rotating speed of target, control threshing cylinder actual speed and mesh
Mark rotating speed is consistent;
Step 5:Press the stop button on display, center ECU upon receiving the stop signal, by installed in automatically controlled liquid
Pressure sensor on press pump is detected to the operating pressure of electrical control hydraulic pump, when the operating pressure for detecting electrical control hydraulic pump
During for unloaded pressure, electrical control hydraulic pump is outputed signal to, make its output flow be zero, threshing cylinder rotating speed is zero, threshing cylinder
Rotation speed control mechanism is stopped;
Preferably, after threshing cylinder rotation speed control mechanism starts in the step 2, the pressure on electrical control hydraulic pump is passed
Sensor is detected to the operating pressure and return pressure of electrical control hydraulic pump all the time, and transmits signals to center ECU, works as center
When ECU judges that the operating pressure of electrical control hydraulic pump exceedes rated operating pressure, and alarm, and alarm signal is included in display
On device;When the operating pressure that center ECU detects electrical control hydraulic pump within a certain period of time is unloaded pressure and is provided with the threshing
When the speed of travel of the combined harvester of drum driven system is zero, center ECU outputs signal to electrical control hydraulic pump, makes its defeated
Outflow is zero, and threshing cylinder rotating speed is zero;
Preferably, demarcation gained when the unloaded pressure is by the zero load of threshing cylinder drive system, the rated operating pressure is by taking off
Grain drum driven system demarcates gained when being operated in specified feed quantity.
Beneficial effects of the present invention:The present invention can in time adjust threshing cylinder drivetrain when engine speed changes
System adjusts threshing cylinder rotating speed, keeps stabilization of speed, is not related to the regulation of running gear, reliability easy to adjust, specifically,
Beneficial effect of the present invention mainly have it is following some:
1. threshing cylinder can realize reversion in the present invention, counter can be told during blocking, and treatment is convenient;
2. the present invention can conveniently detect threshing cylinder load, cheaply increase other control system, it is only necessary to by feed quantity, walking
Control system is connected to the input port of center ECU and is capable of achieving drive system of the present invention and feed quantity, traveling control system
Perfect adaptation;
3. the speed of travel is separate with rotation speed control mechanism in the present invention, can be kept on the premise of the speed of travel is not controlled
Threshing cylinder stabilization of speed, reliability easy to adjust;
4. center ECU by serial ports by data output to PC, storage information, user when in use, the data that need to only need
Center ECU, and threshing cylinder rotation speed control mechanism acquiescence last time input number during the system restarting are transferred to by PC
Value, reduces the workload that user operates the system;
5. electrical control hydraulic pump constitutes closed system with hydraulic motor, and system stabilization, control is accurate, when engine threshing cylinder rotating speed
When controlling organization does not start, electric-controlled hydraulic POF is zero, and hydraulic motor output speed is zero, threshing cylinder actual speed
It is zero;
6. after threshing cylinder rotation speed control mechanism starts, the pressure sensor on electrical control hydraulic pump is all the time to electric-controlled hydraulic
The operating pressure of pump is detected with return pressure, and transmits signals to center ECU, when center ECU judges electrical control hydraulic pump
Operating pressure when exceeding rated operating pressure, and alarm, and alarm signal is shown over the display, user can be real-time
Threshing cylinder rotation speed control mechanism is monitored, can also be processed in time after finding alarm signal, prevent threshing cylinder from turning
Speed control mechanism long term overloading runs, and damages machine;
7. the start and stop of threshing cylinder rotation speed control mechanism are disposed as double control, during startup not only to press startup by
Button also needs to engine speed and meets job requirement, and the work that stop button also needs to electrical control hydraulic pump is not only pressed during stopping
Pressure is unloaded pressure, and double control can effectively prevent drive system is caused because of the maloperation and improper operation of user
Damage.
Brief description of the drawings
Fig. 1 is the overall flow schematic diagram of the drive system for threshing cylinder;
Fig. 2 is the schematic flow sheet of the control method of the drive system for threshing cylinder.
Specific embodiment
Principle of the invention and feature are described in detail with reference to embodiments, illustrated embodiment is only used for description hair
It is bright, it is not intended to limit the scope of the present invention.
As shown in figure 1, a kind of drive system for threshing cylinder, the threshing cylinder drive system is installed in combining
On machine, including threshing cylinder, threshing cylinder drive mechanism and threshing cylinder rotation speed control mechanism, engine with drive threshing cylinder
The threshing cylinder drive mechanism of rotation is connected, and the threshing cylinder drive mechanism includes being connected successively by fluid pressure line
Electrical control hydraulic pump, hydraulic motor and gearbox, engine is directly connected with electrical control hydraulic pump, and the output end of gearbox is direct
It is connected with threshing cylinder;The gearbox is two grades of reduction boxes, slows down to increase and turns round, and improves the driving force of drive system, described de-
Grain drum rotation speed controlling organization is including being used for the display of display driving system operational factor and state, obtaining engine speed
The center ECU that Engine ECU, the signal to receiving are processed and the threshing cylinder rotating speed for detecting threshing cylinder operating mode
Sensor, speed of travel sensor, pressure sensor, the Engine ECU and threshing cylinder speed probe pass through CAN moulds
Block is connected to display, and display output end is connected to the input port of center ECU, the input of center ECU by CAN
Mouth is also connected with the pressure sensor being arranged on electrical control hydraulic pump, obtains the operating pressure and oil return pressure of electrical control hydraulic pump
Power, and the signal that pressure sensor is obtained is sent to center ECU;The input port of center ECU also with speed of travel sensor
It is connected, speed of travel sensor is arranged on and is provided with the combined harvester of the threshing cylinder drive system, specific installation position
Putting should be determined with those skilled in the art according to specific installation process, and speed of travel sensor is obtained and is provided with the threshing
The speed of travel of the combined harvester of drum driven system, and center ECU is passed the signal to, the output port of center ECU
It is connected with electrical control hydraulic pump;The center ECU outputs signal to electric-controlled hydraulic after receiving signal using pid control algorithm
Pump, by the rotating speed for adjusting the output flow of electrical control hydraulic pump to change hydraulic motor, adjusts the actual speed of threshing cylinder;
Preferably, the threshing cylinder speed probe is arranged on threshing cylinder, is obtained the actual speed of threshing cylinder and is shown
Show over the display, the rotating speed of target of threshing cylinder is also shown on display, and be provided with regulation threshing cylinder rotating speed of target
Regulation button and ACK button, regulation button is specifically set as that threshing cylinder rotating speed of target increases button and a threshing
Target drum rotating speed reduces button, and the rotating speed of target of threshing cylinder is adjusted by adjusting button, is pressed by confirmation after the completion of regulation
Button confirms that the rotating speed of target after display will confirm that is sent to center ECU;
Preferably, the button of control threshing cylinder rotation speed control mechanism start and stop is additionally provided with the display, is pressed
Control signal is sent to center ECU by display after button, controls the start and stop of threshing cylinder rotation speed control mechanism, again
Threshing cylinder rotation speed control mechanism acquiescence last time input numerical value during startup;The start and stop of threshing cylinder rotation speed control mechanism are equal
Double control is set to, start button is not only pressed during startup is also needed to engine speed and meet job requirement, during stopping not
Only to press stop button and also need to the operating pressure of electrical control hydraulic pump is unloaded pressure, double control can effectively prevent because
The damage that the maloperation of user and improper operation are caused to drive system;
Preferably, the center ECU passes through serial ports by data output to PC, storage information;User when in use, will need to only need
The data wanted are transferred to center ECU by PC, and during the system restarting in threshing cylinder rotation speed control mechanism acquiescence
Secondary input numerical value, reduces the workload that user operates the system;
Preferably, the hydraulic motor can realize reversion, when threshing cylinder is blocked, be capable of achieving counter telling;
Preferably, the electrical control hydraulic pump constitutes closed system with hydraulic motor, and engine threshing cylinder rotation speed control mechanism is not
During startup, electric-controlled hydraulic POF is zero, and hydraulic motor output speed is zero, and threshing cylinder actual speed is zero;
As shown in Fig. 2 a kind of control method of drive system for threshing cylinder, comprises the following steps,
Step one:To electrical control hydraulic pump, electrical control hydraulic pump drives hydraulic motor rotation to engine output power, and hydraulic motor passes through
Gearbox drives threshing cylinder rotation;
Step 2:The start button on display is pressed, center ECU judges that engine speed is after enabling signal is received
It is no in working range, if engine speed is in working range, threshing cylinder rotation speed control mechanism start, jump to step
Three;If engine speed is not in working range, threshing cylinder rotation speed control mechanism does not start, until engine speed reaches
After working range, threshing cylinder rotation speed control mechanism starts, then jumps to step 3;The working range of engine speed should herein
Set according to the specific works situation and working environment of threshing cylinder drive system with those skilled in the art, specific setting
Method can be set in control algolithm directly inside center ECU, it is also possible to set an engine on a display screen
The setting regions of rotary speed working scope, then the working range on a display screen to engine speed set, most send out at last
The setting value of motivation rotary speed working scope is transferred to center ECU, center ECU to the working range that is set in control algolithm with pass through
The actual engine speed that Engine ECU is obtained is compared;
Step 3:Be sent to for the actual speed of threshing cylinder, engine speed by threshing cylinder speed probe and Engine ECU
Display, and show over the display;The rotating speed of target regulation button that regulation is set over the display adjusts the mesh of threshing cylinder
Mark rotating speed, clicks on and sets after ACK button over the display confirms display by the actual speed of threshing cylinder, rotating speed of target
And the signal of engine speed is sent to center ECU;
Step 4:Center ECU compares the rotating speed of target of threshing cylinder and the difference of actual speed, is exported using pid control algorithm
Signal adjusts the output flow of electrical control hydraulic pump to electrical control hydraulic pump, changes hydraulic motor rotary speed, adjusts threshing cylinder rotating speed,
Keep threshing cylinder actual speed being set in error range with the difference of rotating speed of target, control threshing cylinder actual speed and mesh
Mark rotating speed is consistent;The error range set by the difference of threshing cylinder actual speed and rotating speed of target should be with art technology herein
Personnel set according to the specific works situation and working environment of threshing cylinder drive system, and specific establishing method can be direct
Set in control algolithm inside center ECU, it is also possible to set an error range setting regions on a display screen, so
Error range is set on a display screen afterwards, most error range setting value is transferred to center ECU at last;
Step 5:Press the stop button on display, center ECU upon receiving the stop signal, by installed in automatically controlled liquid
Pressure sensor on press pump is detected to the operating pressure of electrical control hydraulic pump, when the operating pressure for detecting electrical control hydraulic pump
During for unloaded pressure, electrical control hydraulic pump is outputed signal to, make its output flow be zero, threshing cylinder rotating speed is zero, threshing cylinder
Rotation speed control mechanism is stopped;
Preferably, after threshing cylinder rotation speed control mechanism starts in the step 2, the pressure on electrical control hydraulic pump is passed
Sensor is detected to the operating pressure and return pressure of electrical control hydraulic pump all the time, and transmits signals to center ECU, works as center
When ECU judges that the operating pressure of electrical control hydraulic pump exceedes rated operating pressure, and alarm, and alarm signal is included in display
On device;When the operating pressure that center ECU detects electrical control hydraulic pump within a certain period of time is unloaded pressure and is provided with the threshing
When the speed of travel of the combined harvester of drum driven system is zero, center ECU outputs signal to electrical control hydraulic pump, makes its defeated
Outflow is zero, and threshing cylinder rotating speed is zero;User can be monitored to threshing cylinder rotation speed control mechanism in real time, find report
Also can in time be processed after alert signal, prevent threshing cylinder rotation speed control mechanism long term overloading from running, be damaged machine;
Gained is demarcated when the unloaded pressure is by the zero load of threshing cylinder drive system, the rated operating pressure is driven by threshing cylinder
Dynamic system demarcates gained when being operated in specified feed quantity, specific scaling method is prior art, is being not be described in detail herein.
Claims (9)
1. a kind of drive system for threshing cylinder, it is characterised in that:Including threshing cylinder, threshing cylinder drive mechanism and de-
Grain drum rotation speed controlling organization, engine is connected with the threshing cylinder drive mechanism for driving threshing cylinder to rotate, the threshing
Drum drive includes the electrical control hydraulic pump, hydraulic motor and the gearbox that are connected successively by fluid pressure line, engine
Directly it is connected with electrical control hydraulic pump, the output end of gearbox is directly connected with threshing cylinder;The threshing cylinder rotating speed control
Mechanism processed includes display for display driving system operational factor and state, obtains the Engine ECU of engine speed, right
The center ECU that the signal for receiving is processed and threshing cylinder speed probe, walking for detecting threshing cylinder operating mode
Velocity sensor, pressure sensor, the Engine ECU and threshing cylinder speed probe are connected to aobvious by CAN module
Show device, display output end is connected to the input port of center ECU by CAN, the input port of center ECU also with setting
Pressure sensor on electrical control hydraulic pump is connected, and obtains the operating pressure and return pressure of electrical control hydraulic pump, and by pressure
The signal that sensor is obtained is sent to center ECU;The input port of center ECU is also connected with speed of travel sensor, obtains
The speed of travel of the combined harvester of the threshing cylinder drive system is installed, and passes the signal to center ECU, center
The output port of ECU is connected with electrical control hydraulic pump;The center ECU exports letter after receiving signal using pid control algorithm
Number to electrical control hydraulic pump, by the rotating speed for adjusting the output flow of electrical control hydraulic pump to change hydraulic motor, threshing cylinder is adjusted
Actual speed.
2. a kind of drive system for threshing cylinder as claimed in claim 1, it is characterised in that:The threshing cylinder rotating speed
Sensor is arranged on threshing cylinder, is obtained the actual speed of threshing cylinder and is shown over the display, is also shown on display
There is the rotating speed of target of threshing cylinder, and be provided with the regulation button and ACK button for adjusting threshing cylinder rotating speed of target, by adjusting
Section button adjust threshing cylinder rotating speed of target, after the completion of regulation by ACK button confirm, display will confirm that after target
Rotating speed is sent to center ECU.
3. a kind of drive system for threshing cylinder as claimed in claim 2, it is characterised in that:Also set on the display
The button of control threshing cylinder rotation speed control mechanism start and stop is equipped with, be sent to for control signal by display after button press
Center ECU, controls the start and stop of threshing cylinder rotation speed control mechanism, and threshing cylinder rotation speed control mechanism is write from memory during restarting
Recognize last time input numerical value.
4. a kind of drive system for threshing cylinder as claimed in claim 1, it is characterised in that:The center ECU passes through
Serial ports is by data output to PC, storage information.
5. a kind of drive system for threshing cylinder as claimed in claim 1, it is characterised in that:The electrical control hydraulic pump with
Hydraulic motor constitutes closed system, and when engine threshing cylinder rotation speed control mechanism does not start, electric-controlled hydraulic POF is
Zero, hydraulic motor output speed is zero, and threshing cylinder actual speed is zero.
6. a kind of drive system for threshing cylinder as claimed in claim 1, it is characterised in that:The gearbox is two grades
Reduction box, slows down to increase and turns round, and improves the driving force of drive system.
7. the control method of a kind of drive system for threshing cylinder as claimed in claim 1, it is characterised in that:Including with
Lower step,
Step one:To electrical control hydraulic pump, electrical control hydraulic pump drives hydraulic motor rotation to engine output power, and hydraulic motor passes through
Gearbox drives threshing cylinder rotation;
Step 2:The start button on display is pressed, center ECU judges that engine speed is after enabling signal is received
It is no in working range, if engine speed is in working range, threshing cylinder rotation speed control mechanism start, jump to step
Three;If engine speed is not in working range, threshing cylinder rotation speed control mechanism does not start, until engine speed reaches
After working range, threshing cylinder rotation speed control mechanism starts, then jumps to step 3;
Step 3:Be sent to for the actual speed of threshing cylinder, engine speed by threshing cylinder speed probe and Engine ECU
Display, and show over the display;The rotating speed of target regulation button that regulation is set over the display adjusts the mesh of threshing cylinder
Mark rotating speed, clicks on and sets after ACK button over the display confirms display by the actual speed of threshing cylinder, rotating speed of target
And the signal of engine speed is sent to center ECU;
Step 4:Center ECU compares the rotating speed of target of threshing cylinder and the difference of actual speed, is exported using pid control algorithm
Signal adjusts the output flow of electrical control hydraulic pump to electrical control hydraulic pump, changes hydraulic motor rotary speed, adjusts threshing cylinder rotating speed,
Keep threshing cylinder actual speed being set in error range with the difference of rotating speed of target, control threshing cylinder actual speed and mesh
Mark rotating speed is consistent;
Step 5:Press the stop button on display, center ECU upon receiving the stop signal, by installed in automatically controlled liquid
Pressure sensor on press pump is detected to the operating pressure of electrical control hydraulic pump, when the operating pressure for detecting electrical control hydraulic pump
During for unloaded pressure, electrical control hydraulic pump is outputed signal to, make its output flow be zero, threshing cylinder rotating speed is zero, threshing cylinder
Rotation speed control mechanism is stopped.
8. the control method of a kind of drive system for threshing cylinder as claimed in claim 7, it is characterised in that:The step
After threshing cylinder rotation speed control mechanism starts in rapid two, the pressure sensor on electrical control hydraulic pump is all the time to electric-controlled hydraulic
The operating pressure of pump is detected with return pressure, and transmits signals to center ECU, when center ECU judges electrical control hydraulic pump
Operating pressure when exceeding rated operating pressure, and alarm, and alarm signal is shown over the display;When center ECU inspection
The operating pressure for measuring electrical control hydraulic pump within a certain period of time is unloaded pressure and is provided with the connection of the threshing cylinder drive system
When the speed of travel for closing cropper is zero, center ECU outputs signal to electrical control hydraulic pump, makes its output flow be zero, threshing roll
Cylinder rotating speed is zero.
9. the control method of a kind of drive system for threshing cylinder as claimed in claim 8, it is characterised in that:The sky
Gained is demarcated when carrying pressure by the zero load of threshing cylinder drive system, the rated operating pressure is worked by threshing cylinder drive system
Obtained by being demarcated in specified feed quantity.
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Cited By (2)
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CN112042370A (en) * | 2019-06-05 | 2020-12-08 | 丰疆智能科技股份有限公司 | Static pressure drive control system and method of automatic harvester |
CN114488887A (en) * | 2022-01-13 | 2022-05-13 | 第一拖拉机股份有限公司 | Automatic anti-jamming control device and control method for grain harvester |
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CN112042370A (en) * | 2019-06-05 | 2020-12-08 | 丰疆智能科技股份有限公司 | Static pressure drive control system and method of automatic harvester |
CN114488887A (en) * | 2022-01-13 | 2022-05-13 | 第一拖拉机股份有限公司 | Automatic anti-jamming control device and control method for grain harvester |
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