CN106900290B - 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
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- CN106900290B CN106900290B CN201710099635.5A CN201710099635A CN106900290B CN 106900290 B CN106900290 B CN 106900290B CN 201710099635 A CN201710099635 A CN 201710099635A CN 106900290 B CN106900290 B CN 106900290B
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- threshing cylinder
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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
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
A kind of drive system and its control method for threshing cylinder, including threshing cylinder, threshing cylinder driving mechanism and threshing cylinder rotation speed control mechanism, engine is connected with threshing cylinder driving mechanism, threshing cylinder rotation speed control mechanism includes the display for display driving system operating parameter and state, obtain the Engine ECU of engine speed, the center ECU handled the signal received and the threshing cylinder speed probe for detecting threshing cylinder operating condition, speed of travel sensor, pressure sensor, the center ECU uses pid control algorithm to output signal to threshing cylinder driving mechanism after receiving input signal, change the revolving speed of hydraulic motor by adjusting the output flow of electrical control hydraulic pump in threshing cylinder driving mechanism, adjust the actual speed of threshing cylinder；This system can adjust threshing cylinder revolving speed under the premise of not changing the speed of travel, easy to adjust reliable, reduce the failure 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 technique
Domestic combined harvester versatility is reinforced, and a tractor serves several purposes, threshing cylinder revolving speed needs to adapt to various crop, this will
It is convenient to seek threshing cylinder rotational speed regulation, and setting speed can be maintained, threshing cylinder revolving speed is set up before work, there is material feeding
When, engine speed can accordingly decline, and threshing cylinder revolving speed declines therewith at this time, influence Threshing, current threshing cylinder
Revolution speed control system is to maintain threshing cylinder stabilization of speed adjusting the speed of travel, and control system is complicated, be not suitable with mesh
Preceding demand, this system can adjust threshing cylinder drive system in time and turn to adjust threshing cylinder when engine speed changes
Speed keeps stabilization of speed, is not related to the adjusting of running gear, easy to adjust reliable.
Summary of the invention
The technical problem to be solved by the present invention is a kind of drive system and its control method for threshing cylinder is provided,
In engine speed variation, adjusts threshing cylinder drive system in time to adjust threshing cylinder revolving speed, keep stabilization of speed, no
It is related to the adjusting of running gear, it is easy to adjust reliable.
To achieve the goals above, the technical solution adopted by the present invention is that: a kind of drive system for threshing cylinder, should
Threshing cylinder drive system is mounted on combined harvester, which includes threshing cylinder, threshing cylinder driving mechanism and threshing
Drum rotation speed control mechanism, engine are connected with the threshing cylinder driving mechanism of driving threshing cylinder rotation, the threshing roll
Cylinder driving mechanism includes the electrical control hydraulic pump, hydraulic motor and gearbox being successively cooperatively connected by fluid pressure line, engine direct
It connects and is 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, deceleration torque increase improve the driving force of drive system;The threshing cylinder rotation speed control mechanism includes being used for display driving system
The display of operating parameter and state, the Engine ECU for obtaining engine speed, the center that the signal received is handled
ECU and threshing cylinder speed probe, speed of travel sensor, pressure sensor for detecting threshing cylinder operating condition, it is described
Engine ECU and threshing cylinder speed probe pass through CAN module and are connected to display, 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 that is 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 obtains is transmitted to center
ECU；The input port of center ECU is also connected with speed of travel sensor, and the setting of speed of travel sensor is to be equipped with this de-
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 being determined, speed of travel sensor obtains the speed of travel for being equipped with the combined harvester of 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, changes liquid by adjusting the output flow of electrical control hydraulic pump
The revolving speed of pressure motor adjusts the actual speed of threshing cylinder；
Preferably, the threshing cylinder speed probe is arranged on threshing cylinder, obtains the actual speed of threshing cylinder
And show over the display, the rotating speed of target of threshing cylinder is also shown on display, and be provided with and adjust threshing cylinder target
The regulation button and ACK button of revolving speed adjust the rotating speed of target of threshing cylinder by regulation button, by true after the completion of adjusting
Recognize button confirmation, 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 on the display,
Display is sent to center ECU for signal is controlled after button press, controls the start and stop of threshing cylinder rotation speed control mechanism,
Threshing cylinder rotation speed control mechanism default last time inputs numerical value when restarting；
Preferably, the center ECU is exported data to PC machine by serial ports, stores information；
Preferably, the electrical control hydraulic pump and hydraulic motor constitute closed system, and engine threshing cylinder turns speed controller
When structure does not start, electric-controlled hydraulic pump output flow is zero, and it is zero that hydraulic motor, which exports revolving speed, and threshing cylinder actual speed is zero；
A kind of control method of the drive system for threshing cylinder, includes the following steps,
Step 1: engine output power to electrical control hydraulic pump, electrical control hydraulic pump drive hydraulic motor rotation, hydraulic motor
Threshing cylinder rotation is driven by gearbox；
Step 2: pressing the start button on display, and center ECU judges that engine turns after receiving enabling signal
Whether speed is in working range, if engine speed, in working range, the starting of threshing cylinder rotation speed control mechanism jumps to
Step 3；If engine speed, not in working range, threshing cylinder rotation speed control mechanism does not start, until engine speed
After reaching working range, the starting of threshing cylinder rotation speed control mechanism, then go to step three；
Step 3: threshing cylinder speed probe and Engine ECU pass the actual speed of threshing cylinder, engine speed
It send to display, and shows over the display；It adjusts the rotating speed of target regulation button of setting over the display and adjusts threshing cylinder
Rotating speed of target, display is by the actual speed of threshing cylinder, target after clicking the ACK button confirmation of setting over the display
Revolving speed and the signal of engine speed are sent to center ECU；
Step 4: center ECU compares the rotating speed of target of threshing cylinder and the difference of actual speed, using pid control algorithm
Electrical control hydraulic pump is outputed signal to, the output flow of electrical control hydraulic pump is adjusted, changes hydraulic motor rotary speed, threshing cylinder is adjusted and turns
Speed keeps threshing cylinder actual speed and the difference of rotating speed of target in setting error range, controls threshing cylinder actual speed
It is consistent with rotating speed of target；
Step 5: pressing the stop button on display, center ECU upon receiving the stop signal, by being mounted on electricity
Pressure sensor on draining press pump detects the operating pressure of electrical control hydraulic pump, when the work for detecting electrical control hydraulic pump
When pressure is unloaded pressure, electrical control hydraulic pump is outputed signal to, its output flow zero is made, threshing cylinder revolving speed is zero, threshing
Drum rotation speed control mechanism stops working；
Preferably, in the step 2 after the starting of threshing cylinder rotation speed control mechanism, the pressure that is mounted on electrical control hydraulic pump
Force snesor always detects the operating pressure of electrical control hydraulic pump with return pressure, and transmits signals to center ECU, when
Center ECU judges when the operating pressure of electrical control hydraulic pump is more than rated operating pressure and alarm, and alarm signal is shown
On display；When center ECU detects the operating pressure of electrical control hydraulic pump within a certain period of time as unloaded pressure and is equipped with this
When the speed of travel of the combined harvester of threshing cylinder drive system is zero, center ECU outputs signal to electrical control hydraulic pump, makes
Its output flow is zero, and threshing cylinder revolving speed is zero；
Preferably, the unloaded pressure is by demarcating gained, the rated operating pressure when threshing cylinder drive system zero load
As obtained by threshing cylinder drive system work calibration in specified feed quantity.
Beneficial effects of the present invention: the present invention can adjust threshing cylinder driving system when engine speed changes in time
It unites to adjust threshing cylinder revolving speed, keeps stabilization of speed, be not related to the adjusting of running gear, it is easy to adjust reliable, specifically,
Beneficial effect of the present invention mainly has the following:
1. threshing cylinder may be implemented to invert in the present invention, when blocking, counter can be spat, and processing is convenient；
2. the present invention can be convenient detection threshing cylinder load, cheaply increase other control system, it is only necessary to by feed quantity,
Drive system of the present invention and feed quantity, travelling control system can be realized in the input port that traveling control system is connected to center ECU
The perfect combination of system；
3. the speed of travel and rotation speed control mechanism are mutually indepedent in the present invention, can be under the premise of not controlling the speed of travel
Threshing cylinder stabilization of speed is kept, it is easy to adjust reliable；
4. center ECU is exported data to PC machine by serial ports, information is stored, user when in use, only need to be by needs
Data are transferred to center ECU by PC machine, and threshing cylinder rotation speed control mechanism default last time is defeated when this system restarting
Enter numerical value, reduces the workload of user's operation this system；
5. electrical control hydraulic pump and hydraulic motor constitute closed system, system is stablized, and control is accurate, when engine threshing cylinder
When rotation speed control mechanism does not start, electric-controlled hydraulic pump output flow is zero, and it is zero that hydraulic motor, which exports revolving speed, and threshing cylinder is practical
Revolving speed is zero；
6. being mounted on the pressure sensor on electrical control hydraulic pump always to automatically controlled after the starting of threshing cylinder rotation speed control mechanism
The operating pressure of hydraulic pump is detected with return pressure, and transmits signals to center ECU, when center ECU judges automatically controlled liquid
When the operating pressure of press pump is more than rated operating pressure and alarm, and alarm signal is shown that over the display, user can
Threshing cylinder rotation speed control mechanism is monitored in real time, can also be handled in time after finding alarm signal, prevent threshing roll
Cylinder rotation speed control mechanism long term overloading operation, damages machine；
7. the start and stop of threshing cylinder rotation speed control mechanism are disposed as double control, when starting, which will not only press, is opened
Dynamic button also needs engine speed to meet job requirement, and when stopping will not only pressing stop button and also need electrical control hydraulic pump
Operating pressure is unloaded pressure, and double control can be prevented effectively because drive system is made in the maloperation of user and improper operation
At damage.
Detailed description of the invention
Fig. 1 is the overall flow schematic diagram of the drive system for threshing cylinder；
Fig. 2 is the flow diagram of the control method of the drive system for threshing cylinder.
Specific embodiment
Principles and features of the present invention 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, which is mounted on combining
On machine, including threshing cylinder, threshing cylinder driving mechanism and threshing cylinder rotation speed control mechanism, engine and driving threshing cylinder
The threshing cylinder driving mechanism of rotation is connected, and the threshing cylinder driving mechanism includes successively being cooperatively connected 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 gearboxes, and deceleration torque increase improves the driving force of drive system, described de-
Grain drum rotation speed control mechanism includes for the display of display driving system operating parameter and state, obtains engine speed
Engine ECU, the center ECU that the signal received is handled and the threshing cylinder revolving speed for detecting threshing cylinder operating condition
Sensor, speed of travel sensor, pressure sensor, the Engine ECU and threshing cylinder speed probe pass through CAN mould
Block is connected to display, and display output end is connected to the input port of center ECU, the input terminal of center ECU by CAN bus
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 obtains is transmitted 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 the combined harvester for being equipped with the threshing cylinder drive system, specific installation position
Setting should be determined with those skilled in the art according to specific installation process, and the acquisition of speed of travel sensor is equipped 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 uses pid control algorithm to output signal to electric-controlled hydraulic after receiving signal
Pump changes the revolving speed of hydraulic motor by adjusting the output flow of electrical control hydraulic pump, adjusts the actual speed of threshing cylinder；
Preferably, the threshing cylinder speed probe is arranged on threshing cylinder, obtains the actual speed of threshing cylinder
And show over the display, the rotating speed of target of threshing cylinder is also shown on display, and be provided with and adjust threshing cylinder target
The regulation button and ACK button of revolving speed, regulation button are specifically set as a threshing cylinder rotating speed of target and increase button and one
Threshing cylinder rotating speed of target reduces button, and the rotating speed of target of threshing cylinder is adjusted by regulation button, by true after the completion of adjusting
Recognize button confirmation, 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 on the display,
Display is sent to center ECU for signal is controlled after button press, controls the start and stop of threshing cylinder rotation speed control mechanism,
Threshing cylinder rotation speed control mechanism default last time inputs numerical value when restarting；The starting of threshing cylinder rotation speed control mechanism with stop
Only it is disposed as double control, when starting will not only press start button and engine speed is also needed to meet job requirement, stop
When not only to press stop button and also need the operating pressure of electrical control hydraulic pump for unloaded pressure, double control can be prevented effectively
Because the maloperation of user and improper operation are damaged caused by drive system；
Preferably, the center ECU is exported data to PC machine by serial ports, stores information；User when in use, only needs
The data of needs are transferred to center ECU by PC machine, and threshing cylinder rotation speed control mechanism is silent when this system restarting
Recognize last time input numerical value, reduces the workload of user's operation this system；
Preferably, the hydraulic motor is able to achieve reversion, in threshing cylinder blocking, it can be achieved that counter spit；
Preferably, the electrical control hydraulic pump and hydraulic motor constitute closed system, and engine threshing cylinder turns speed controller
When structure does not start, electric-controlled hydraulic pump output flow is zero, and it is zero that hydraulic motor, which exports revolving speed, and threshing cylinder actual speed is zero；
As shown in Fig. 2, a kind of control method of the drive system for threshing cylinder, includes the following steps,
Step 1: engine output power to electrical control hydraulic pump, electrical control hydraulic pump drive hydraulic motor rotation, hydraulic motor
Threshing cylinder rotation is driven by gearbox；
Step 2: pressing the start button on display, and center ECU judges that engine turns after receiving enabling signal
Whether speed is in working range, if engine speed, in working range, the starting of threshing cylinder rotation speed control mechanism jumps to
Step 3；If engine speed, not in working range, threshing cylinder rotation speed control mechanism does not start, until engine speed
After reaching working range, the starting of threshing cylinder rotation speed control mechanism, then go to step three；The work model of engine speed herein
Enclosing should be set with those skilled in the art according to the specific works situation of threshing cylinder drive system and working environment, specifically
Setting method can directly be set in the control algolithm inside center ECU, can also set a hair on a display screen
The setting regions of motivation rotary speed working range, then on a display screen sets the working range of engine speed, finally
The setting value of engine speed working range is transferred to center ECU, center ECU to the working range set in control algolithm with
It is compared by the actual engine speed that Engine ECU obtains；
Step 3: threshing cylinder speed probe and Engine ECU pass the actual speed of threshing cylinder, engine speed
It send to display, and shows over the display；It adjusts the rotating speed of target regulation button of setting over the display and adjusts threshing cylinder
Rotating speed of target, display is by the actual speed of threshing cylinder, target after clicking the ACK button confirmation of setting over the display
Revolving speed and the signal of engine speed are sent to center ECU；
Step 4: center ECU compares the rotating speed of target of threshing cylinder and the difference of actual speed, using pid control algorithm
Electrical control hydraulic pump is outputed signal to, the output flow of electrical control hydraulic pump is adjusted, changes hydraulic motor rotary speed, threshing cylinder is adjusted and turns
Speed keeps threshing cylinder actual speed and the difference of rotating speed of target in setting error range, controls threshing cylinder actual speed
It is consistent with rotating speed of target；Error range set by threshing cylinder actual speed and the difference of rotating speed of target should be with this field herein
Technical staff sets according to the specific works situation of threshing cylinder drive system and working environment, and specific setting method can be with
It is directly set in the control algolithm inside center ECU, an error range setting area can also be set on a display screen
Then domain on a display screen sets error range, error range setting value is finally transferred to center ECU；
Step 5: pressing the stop button on display, center ECU upon receiving the stop signal, by being mounted on electricity
Pressure sensor on draining press pump detects the operating pressure of electrical control hydraulic pump, when the work for detecting electrical control hydraulic pump
When pressure is unloaded pressure, electrical control hydraulic pump is outputed signal to, its output flow zero is made, threshing cylinder revolving speed is zero, threshing
Drum rotation speed control mechanism stops working；
Preferably, in the step 2 after the starting of threshing cylinder rotation speed control mechanism, the pressure that is mounted on electrical control hydraulic pump
Force snesor always detects the operating pressure of electrical control hydraulic pump with return pressure, and transmits signals to center ECU, when
Center ECU judges when the operating pressure of electrical control hydraulic pump is more than rated operating pressure and alarm, and alarm signal is shown
On display；When center ECU detects the operating pressure of electrical control hydraulic pump within a certain period of time as unloaded pressure and is equipped with this
When the speed of travel of the combined harvester of threshing cylinder drive system is zero, center ECU outputs signal to electrical control hydraulic pump, makes
Its output flow is zero, and threshing cylinder revolving speed is zero；User can in real time be monitored threshing cylinder rotation speed control mechanism, hair
It can also be handled in time after existing alarm signal, prevent threshing cylinder rotation speed control mechanism long term overloading from running, damage machine；
The zero load pressure is by demarcating gained when threshing cylinder drive system zero load, the rated operating pressure is by threshing roll
Cylinder drive system work is in specified feed quantity obtained by calibration, and specific scaling method is the prior art, here without detailed
Description.
Claims (9)
1. a kind of drive system for threshing cylinder, it is characterised in that: including threshing cylinder, threshing cylinder driving mechanism and take off
Grain drum rotation speed control mechanism, engine are connected with the threshing cylinder driving mechanism of driving threshing cylinder rotation, the threshing
Drum drive includes the electrical control hydraulic pump, hydraulic motor and gearbox being successively cooperatively connected 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 revolving speed control
Mechanism processed includes for the display of display driving system operating parameter and state, obtains the Engine ECU, right of engine speed
The center ECU that the signal received is handled and the threshing cylinder speed probe for detecting threshing cylinder operating condition, walking
Velocity sensor, pressure sensor, the Engine ECU and threshing cylinder speed probe pass through CAN module be connected to it is aobvious
Show device, display output end is connected to the input port of center ECU by CAN bus, 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 obtains is transmitted 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 ECU
Output port be connected with electrical control hydraulic pump；The center ECU is outputed signal to after receiving signal using pid control algorithm
Electrical control hydraulic pump changes the revolving speed of hydraulic motor by adjusting the output flow of electrical control hydraulic pump, adjusts the reality of threshing cylinder
Border revolving speed.
2. a kind of drive system for threshing cylinder as described in claim 1, it is characterised in that: the threshing cylinder revolving speed
Sensor is arranged on threshing cylinder, obtains the actual speed of threshing cylinder and shows over the display, also shows 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, passes through tune
Save button adjust threshing cylinder rotating speed of target, adjust after the completion of by ACK button confirmation, display will confirm that after target
Revolving 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
It is equipped with the button of control threshing cylinder rotation speed control mechanism start and stop, display is sent to signal is controlled 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 silent when restarting
Recognize last time input numerical value.
4. a kind of drive system for threshing cylinder as described in claim 1, it is characterised in that: the center ECU passes through
Serial ports exports data to PC machine, stores information.
5. a kind of drive system for threshing cylinder as described 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 pump output flow is
Zero, it is zero that hydraulic motor, which exports revolving speed, and threshing cylinder actual speed is zero.
6. a kind of drive system for threshing cylinder as described in claim 1, it is characterised in that: the gearbox is two grades
Reduction gearbox, deceleration torque increase improve the driving force of drive system.
7. a kind of control method of the drive system for threshing cylinder as described in claim 1, it is characterised in that: including with
Lower step,
Step 1: engine output power to electrical control hydraulic pump, electrical control hydraulic pump drive hydraulic motor rotation, and hydraulic motor passes through
Gearbox drives threshing cylinder rotation；
Step 2: pressing the start button on display, and center ECU judges that engine speed is after receiving enabling signal
It is no in working range, if engine speed in working range, threshing cylinder rotation speed control mechanism starting, go to step
Three；If engine speed, not in working range, threshing cylinder rotation speed control mechanism does not start, until engine speed reaches
After working range, the starting of threshing cylinder rotation speed control mechanism, then go to step three；
Step 3: the actual speed of threshing cylinder, engine speed are sent to by threshing cylinder speed probe and Engine ECU
Display, and show over the display；Adjust the mesh that the rotating speed of target regulation button of setting over the display adjusts threshing cylinder
Revolving speed is marked, display is by the actual speed of threshing cylinder, rotating speed of target after clicking the ACK button confirmation of setting over the display
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 revolving speed,
It keeps threshing cylinder actual speed and the difference of rotating speed of target in setting error range, controls threshing cylinder actual speed and mesh
It is consistent to mark revolving speed；
Step 5: pressing the stop button on display, center ECU upon receiving the stop signal, by being mounted on automatically controlled liquid
Pressure sensor on press pump detects the operating pressure of electrical control hydraulic pump, when the operating pressure for detecting electrical control hydraulic pump
When for unloaded pressure, electrical control hydraulic pump is outputed signal to, its output flow zero is made, threshing cylinder revolving speed is zero, threshing cylinder
Rotation speed control mechanism stops working.
8. a kind of control method of the drive system for threshing cylinder as claimed in claim 7, it is characterised in that: the step
In rapid two after the starting of threshing cylinder rotation speed control mechanism, the pressure sensor on electrical control hydraulic pump is mounted on always 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 being more than rated operating pressure and alarm, and alarm signal is shown over the display；When center ECU is examined
The operating pressure for measuring electrical control hydraulic pump within a certain period of time is unloaded pressure and the connection for being equipped with 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 zero, threshing roll
Cylinder revolving speed is zero.
9. a kind of control method of the drive system for threshing cylinder as claimed in claim 8, it is characterised in that: the sky
It carries pressure and is worked by demarcating gained, the rated operating pressure when threshing cylinder drive system zero load by threshing cylinder drive system
In specified feed quantity obtained by calibration.
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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 |
| CN114488887B (en) * | 2022-01-13 | 2024-06-18 | 第一拖拉机股份有限公司 | Control method of automatic anti-jamming control device of grain harvester |
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| CN103416149A (en) * | 2012-05-18 | 2013-12-04 | 井关农机株式会社 | Combine harvester |
| CN103749075A (en) * | 2014-01-02 | 2014-04-30 | 洛阳理工学院 | Control system for combined harvesters |
| CN205865188U (en) * | 2016-04-27 | 2017-01-11 | 东风农业装备（襄阳）有限公司 | A crop collector for thresher and drive mechanism thereof |
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| CN106900290A (en) | 2017-06-30 |
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