JP3087372B2 - Combine harvesting control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvesting transmission control device for controlling a harvesting transmission speed of a combine.

[0002]

2. Description of the Related Art The relationship between the vehicle speed in a combine and the transmission speed of a reaper unit is such that the transmission speed of the reaper unit is maintained at a high level and the harvesting performance is sufficiently maintained at low speeds. However, there is no configuration in which a plurality of modes can be set according to various conditions and varieties of the grain culm, such that the mowing transmission speed of the mowing device is set according to the traveling vehicle speed.

[0003] Further, there has been a problem that the rise of the transmission rotation of the reaper is often delayed. That is, it takes a considerable amount of time to detect the vehicle speed during low-speed running and to increase the mowing transmission speed to a predetermined rotation.
In addition, the transmission of the reaping device is performed when the reaping of the combine is stopped.
It was configured to stop at the same time. For this reason, the mowing device is scratched.
Grain stalks that did not enter were causing spills.

[0004]

The above object of the present invention is achieved by the following constitution. That is, the invention of claim 1
A traveling transmission 2 for shifting the traveling device 1;
In a combine having a reaping transmission 4 for shifting the reaping device 3, a cutting operation for the traveling vehicle speed of the traveling device 1 is performed.
A plurality of modes are set for the reaping transmission speed of the reaper 3,
By detecting the start of the reaping run or the traveling at a very low speed, the reaping transmission is performed.
Mowing transmission control device 5 that controls the rotation of the motor to rise to a set value
And a configuration of a combine harvester control device characterized by having:

According to a second aspect of the present invention, the combining
Transmission of the reaper 3 in connection with the stop of the reaper's reaping run.
Is configured to stop after a predetermined time has elapsed
The harvesting control device of the combine according to claim 1 is configured.

[0006]

When the engine is driven, the traveling device 1 is transmitted through the traveling transmission 2 and the cutting device 3 is transmitted through the cutting transmission 4. By traveling of the traveling device 1, the stalks guided to the cutting device 3 are cut,
It is transported and supplied to the threshing device to be threshed.

[0007] Such a combine according to claim 1
In the present invention, the harvesting transmission speed of the mowing device is set in a plurality of modes according to the mowing traveling vehicle speed, so that an appropriate mowing operation can be performed according to various conditions and varieties of grain culm. Furthermore, at the start of mowing travel, or at very low speed,
The mowing transmission control device 5 operates to control the speed of the mowing transmission 4 so that the rotational transmission of the mowing device 3 is controlled to rise to a predetermined set value. Therefore, even when the vehicle speed is in a low speed range, the transmission speed of the reaper 3 is rapidly increased, and the reaping performance is sufficiently maintained so that losing and the like do not occur.

[0008] In the invention according to claim 2, the combining
When the mowing travel of the reaper is stopped, the reaper 3
Transmission stops. Therefore, grain stalks cut with a cutting blade
Is scraped into the scraping device of the reaper 3, so that the culm
It is possible to prevent spills and turbulence in transport of grain stems .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1 to FIG. 6, a combine is provided by a threshing device 7 mounted on a vehicle body 6 having a traveling device 1 in the form of a crawler and supported by a cutting device 2 supported on the front of the vehicle body 6. It is configured to thresh while receiving the transport supply and transporting it with the feed chain 8 or the clamping rod 9 or the like. The reaper 2
The reaping frame 10 is supported on a support frame 11 near the front end of the feed chain 8 so as to be rotatable up and down, and a grain stalk raising device 12, a grain stalk scraping device 13,
It has a cutting blade device 14, a collecting device 15 for collecting and harvesting the harvested grain culm, a grain culm transfer device 16 for inheriting and transporting the collected grain culm to the starting end of the feed chain 8, and the like.

Reference numeral 17 denotes a transmission case in which a transmission device for transmitting the traveling device 1 is provided. Reference numeral 18 denotes a vertical movement of the cereal culm transfer device 16 to change the inherited position of the cereal culm between the culm transfer device 15 and A depth control motor for changing and adjusting the depth of operation of the threshing device 7, 19 is a cockpit, and 20 is a cockpit. Regarding the transmission from the engine E, the transmission to the traveling device 1 is performed by transmitting the hydraulic continuously variable transmission HST to the main transmission, and the traveling transmission 2 is transmitted.
Configuration. The hydraulic continuously variable transmission HST is configured to transmit the left and right traveling devices 1 via the auxiliary transmission and the steering clutch in the transmission case 17. The hydraulic continuously variable transmission HST can perform a continuously variable transmission by operating the HST lever 21 on the control platform 19 by operating the neutral position to a forward high speed or a reverse high speed. 22 is this HST
It is a stroke sensor for detecting the operation position of the lever 21 or a position sensor such as a potentiometer. A cutting clutch lever 23 turns on and off the transmission to the cutting device 1. Reference numeral 24 denotes a vehicle speed sensor provided in the transmission case 17, which can be detected from a part of rotation of the traveling transmission. 25
Is an engine rotation sensor that detects the number of rotations of the engine E.

The transmission to the reaper 3 is carried out from the engine E via a continuously variable transmission 26 using a ring cone, a hydraulic motor or the like, so that the reaper transmission 4 is configured. Reference numeral 27 denotes a mowing control motor for shifting the continuously variable transmission 26. Reference numeral 28 denotes a cutting speed sensor that detects a cutting transmission speed from a part of the cutting transmission device. Note that the transmission of the feed chain 8 in the threshing device 7 is configured to be transmitted through the reaping transmission 4.

A controller CPU having a microcomputer includes a position sensor 22, a vehicle speed sensor 24,
And the cutting speed sensor 28, etc.
7 can be output.
Further, the controller CPU includes a position sensor 22 for detecting an operation position of the HST lever 21 and a reaper 3.
A clutch switch 29 for detecting the on / off state of the clutch of the threshing device 7, and a standard mode A for cutting a grain culm that is not lodged by the degree of lodging of the harvested grain culm, and a lodging mode B for cutting a grain culm that is lodging. The switching mode switch 30 for switching is input. Reference numeral 31 denotes a cereal stalk sensor that detects a cereal stalk before being harvested by the cereal stalk scraping device 13.

By switching the changeover mode switch 30, the speed of the cutting control motor 27 is controlled in accordance with the detection of the vehicle speed by the vehicle speed sensor 24 or the like, so that the setting pattern of the standard mode A or the lodging mode B (FIG. 6) is followed. To control. Now, in the graphs of FIGS. 5 and 6, time T, vehicle speed V,
If the relationship between the transmission speed R and the vehicle speed V and the relationship between the transmission speed R are shown, C is a change detected by the position sensor 22 of the HST lever 21, and D is a change detected by the cut speed sensor 28. Show. In particular, it is ideal that the power of the mowing device 3 is rapidly transmitted when the mowing travel starts, but the change of the mowing power at the start of mowing increases along the solid line F from the rising stroke D1 of the one-dot chain line D. Then, control is performed along the D line, which is the set pattern, while changing like F1 to F4. The control along the lines C and D in FIG. 5 changes the sensor pulse from the vehicle speed sensor 24,
The operation is performed according to the flow of FIG. 2 by operating the HST lever 21. Therefore, during a very low-speed running that does not lead to a low-speed running, the rotation of the reaping device 3 is rapidly increased, and the power is transmitted so as to maintain the minimum limit of the reaping performance.

In FIGS. 1, 3 and 6 to 8, when the combine operation is stopped, the transmission of the reaper 3 is stopped with an appropriate delay of time T 1 with respect to the stop of the transmission of the traveling device 1. After the grain stalks that have been cut are completely scraped into the mowing device 3, the mowing device 3 is stopped so that the grain stalks are not disturbed. The transmission of the reaping device 3 stops the reaping transmission rotation by returning to the neutral position of the continuously variable transmission 26. However, when the HST lever 21 is operated to the neutral position to stop the traveling, the culm is The transmission of the reaper 3 by the detection of the grain stem of the sensor 31 is as follows.
After being transmitted for the predetermined time T1, the continuously variable transmission 26 is brought to the neutral position by the mowing OFF delay and the mowing device 3 is stopped.

In FIG. 9 and FIG.
The transmission speed of R is changed from R1 to R2 so as to loosen at the position where the culm of the lodging grain culm is pulled up to a certain position, and this shift point P is set at a position approximately half of the maximum vehicle speed Vmax. To perform transmission speed control. By doing this, the speed at which the lodging grain culm rises from the ground to a certain height at low vehicle speed is quickly increased, and then at high vehicle speed, the speed of scraping the spike of the culm is slowed down, and threshing and cutting By reducing the likeness and eliminating turbulence in the grain stalks, the efficiency of elicitation is enhanced while harmonizing the two.

In FIGS. 11 and 12, in the low speed range 0 to V1 in the relationship between the vehicle speed and the reaping transmission speed, the standard mode A and the lying mode B substantially coincide with each other, and the vehicle speed changes from the fixed position P1 to the low speed range. When entering, the falling mode B becomes high speed R1 and the standard mode A becomes slightly slower than R3 from point P1. When harvesting when the combine began to enter the field,
Because of the very low speed transmission, even if the stalks are cut by a cutting blade,
Although it is difficult for the scraping, collection and the like to be performed accurately due to sliding down, the cutting performance at a very low speed can be improved.

In FIG. 13 and FIG. 14, the cutting transmission speed R2 at the time of high vehicle speed in the lying mode B is set to R2max which is 10 to 20% higher than R3max which is the highest speed of R3 in the standard mode A. By increasing the cutting power transmission speed R2, the tip delay can be reduced. In particular, in the same field, when the culm becomes slightly tilted, the operation in the high-speed region can eliminate the tip delay.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention.

FIG. 1 is a control block diagram for performing harvesting speed control and the like of a combine.

FIG. 2 is a flowchart of the cutting speed control.

FIG. 3 is a side view of the combine.

FIG. 4 is a transmission path diagram of a part thereof.

FIG. 5 is a graph showing a change between a vehicle speed and a mowing transmission speed.

FIG. 6 is a graph showing a relationship between a vehicle speed and a mowing transmission speed.

FIG. 7 is a flowchart of cutting transmission speed control when the vehicle speed is stopped.

FIG. 8 is a graph showing an example of changes in the vehicle speed and the mowing transmission speed.

FIG. 9 is a graph showing an example of the relationship between vehicle speed and cutting transmission speed.

FIG. 10 is a flowchart of the partial control.

FIG. 11 is a graph showing an example of a relationship between vehicle speed and cutting transmission speed.

FIG. 12 is a flowchart of the partial control.

FIG. 13 is a graph showing an example of the relationship between vehicle speed and cutting transmission speed.

FIG. 14 is a flowchart of the partial control.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 traveling device 2 traveling transmission device 3 reaping device 4 reaping transmission device 5 reaping transmission control device

Claims (2)

(57) [Claims] A traveling transmission device (2) for shifting the traveling device (1).
And a harvesting transmission 4 for shifting the speed of the reaping device 3, with respect to the traveling vehicle speed of the traveling device 1.
Setting of the mowing transmission speed of the mowing device 3
In addition, the start of the mowing travel or the detection of the very low speed travel causes the
Harvesting transmission control device that controls the rotation of the harvesting transmission to a set value
Harvesting control device for a combine harvester, comprising:
Place. 2. The method according to claim 1, further comprising the step of stopping the harvesting of the combine harvester.
Thus, the transmission of the reaper 3 stops after a predetermined time has elapsed.
2. The converter according to claim 1, wherein
Inn reaping control device.