JPS60207514A - Automatic speed reducing control mechanism of combine at hopper full time - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (a) Industrial Application Field The present invention relates to an automatic deceleration control mechanism of a combine harvester when a hopper is full, and more specifically, when a hopper full good news sensor installed in the hopper is turned on. The present invention relates to an automatic deceleration control mechanism for a combine harvester that automatically reduces the traveling speed of the combine harvester to a set speed.

(B) Conventional technology Conventionally, combine harvesters control the running speed to an appropriate working speed by operating a speed change lever during work, and transfer the cut culm from the pre-processing section at the front of the machine to the conveyor tank. The grains are transported to a threshing section, separated by the threshing section, and stored in a hopper, and are filled into a paddy bag set below the paddy supply port at the bottom of the hopper. When the paddy bag becomes full with grains, the paddy sensor installed in the lower part of the hopper detects the condition and issues a paddy bag full alarm and closes the shutter.
The supply of paddy from the paddy supply port of the hopper is automatically stopped. In addition, when the grains stored in the hopper reach the level of a hopper full sensor installed at a relatively high position in the hopper, the sensor is turned on and a buzzer etc. is activated to send the hopper to a state just before overflow. The system is designed to alert the operator that there is a problem.

(c) Problems to be solved by the present invention By the way, in the conventional combine harvester described above, when the set paddy bag becomes full, the grains whose supply has been stopped are stored in a hopper with a relatively large capacity. Since it will continue to be stored for a while, there will be no problem even if the worker does not immediately change the paddy bag for some reason, but after that period,
When the hopper is almost full, the hopper full delta alarm sensor is activated and an alarm is issued. In such a case, if left unattended, grains will overflow from the overflow lid of the bar, making it necessary to immediately remove the full paddy bag and set a new paddy bag. At that time, if the combine harvester is running at the normal working speed, it will be difficult to replace the paddy bags, and the hopper will quickly overflow, so one worker must operate the combine and operate the combine. If other workers are working nearby, such as replacing paddy bags, the operator of the combine harvester operates the continuously variable speed lever to reduce the speed of the combine and perform other tasks. When the operator finishes replacing the paddy bag, he operates the gear shift lever again to return the combine harvester to its normal working speed. You have to perform driving operations while doing so, which makes the operations very troublesome.
Moreover, if the two workers did not get along well with each other, the work became extremely dangerous for other workers.

On the other hand, if the combine harvester is operated automatically at normal working speed using an automatic direction control device and the work is carried out only by human workers, the above-mentioned dangers are less likely to occur. However, in this case, the worker has to change the paddy bags and perform other tasks while the combine harvester is running automatically, making the task very difficult for the worker.

In addition, in this case, if the hopper full warning is issued while the worker is away from the combine harvester and doing some other work, the grain will be removed from the hopper by the time the worker returns to the combine harvester. There was an inconvenience that it overflowed.

B) Means for solving the problem The present invention aims to solve the above-mentioned problems,
The speed change lever and the continuously variable transmission are connected to a control unit such as a microcomputer through a displacement detector such as a potentiometer, and a hopper full alarm sensor installed in the hopper is connected to the control unit, and the The continuously variable transmission is connected to be controlled by the control unit, and when the hopper full signal sensor is turned on, the continuously variable transmission is set by the control unit regardless of the operating position of the gear shift lever. The invention is characterized in that the continuously variable transmission device is configured to operate to a deceleration position, and to return the continuously variable transmission to a speed position corresponding to the operation position of the speed change lever when the hopper full warning sensor is turned off.

(E) Effect By adopting the above-mentioned means, when the hopper full alarm sensor is turned on when the hopper is about to be full,
The combine running speed is automatically reduced from the normal working speed to a lower set speed, so that the accumulation of grain in the hopper is slow until the grain overflows from the hopper. time will be extended. and,
During that time, if the worker removes the full paddy bag, inserts a new paddy bag, and starts filling it again with grains, the grain level in the hopper will drop and the hopper full warning sensor will turn off. In this state, the engine is returned to the normal working speed corresponding to the operating position of the gear shift lever.

(f) Example Hereinafter, embodiments embodying the present invention will be described.

As shown in FIG. 1, the combine 1 is equipped with a pre-processing section 3 in front of the driver's seat 2 and a hopper 5 in the rear. A paddy sensor L6 that is activated is installed, and a hopper full warning sensor (paddy sensor H) 7 that is activated when the hopper 5 is about to overflow is installed above.

Additionally, there is an alarm buzzer on the outer wall near the driver's seat 2 of hopper 5.
9 is provided, and furthermore, an overflow lid 10 is provided on the top of the hopper 5. Also, near the driver's seat 2, there is a main gear shift lever follower 12 for switching the transmission 11, and a drive-side split boot! J13a and vertical split pulley 13b
a main clutch that operates a clutch 15 that connects and disconnects power transmission between a continuously variable transmission 13 consisting of a continuously variable transmission 13 and the transmission 11; Various operating devices such as a gear shift lever 19 to be operated are provided. The speed change lever 19 has the speed change lever 19
is provided with potentiometers P and 21 which operate in such a way that when the rotation angle θ is rotated toward the speed increasing side, a voltage V proportional to the rotation angle θ is inputted to the microcomputer 20, and the potentiometers P and 21 are connected to drive the continuously variable transmission 13. The side split boo I713a has microcomputer 2.
The microcomputer 20 controls the motor 22, which rotates forward, reverse, or stops depending on the output from 0 to change the speed change state of the continuously variable transmission 13, and the voltage V proportional to the position of the drive-side split pulley 13a, that is, the traveling speed V of the combine 1. A potentiometer 23 is provided which is interlocked to input the signal. Further, the paddy sensor L6 and the paddy sensor H7 are connected to input their ON/OFF signals to the microcomputer 20, respectively, and the alarm buzzer 9 is driven by the output from the microcomputer 20. In addition, the driver's seat 2
An alarm stop button 26 is installed on the nearby operation panel 25, and the alarm stop button 26 is connected to the microcomputer 20 so as to stop the operation of the alarm buzzer 9 when the alarm stop button 26 is turned on.

As shown in FIG. 2, when the paddy sensor L6 is off, the alarm buzzer 9 is in an inactive state, and when the paddy sensor L6 is on and the paddy sensor H7 is off, the alarm buzzer 9 is in an off state. The alarm buzzer 9 is activated intermittently to alert the worker that the paddy bag is full, and the alarm stop button 26 is pressed to stop this state. When pressed to turn on, the operation of the detailed information buzzer 9 is immediately stopped. In both cases, the microcomputer 20 compares the input signal from the potentiometer R21 with the input signals from the potentiometers P and 23 to drive the continuously variable transmission rf13 (
lu11% boo! If the position of j13a, that is, the traveling speed of the combine harvester 1 corresponds to the operating rotation angle θ of the speed change lever 19, no drive signal is issued from the microcomputer 20 to the motor 22, and the combine harvester 1 is driven at the current traveling speed. , and the operating angle θ of the gear shift lever 19 and the combine harvester 1
If the running speed V does not correspond to the running speed V and there is a discrepancy, the microcomputer 20 issues a forward rotation signal or a reverse rotation signal to the motor 22, and the position of the drive side split boob') 13a is moved. In order to correct the above-mentioned deviation, the speed of the combine 1 is increased or decreased.

Next, when grains are accumulated in the hopper 5 and the paddy sensor H7 turns on, the tF alarm stop button 26 in the off state informs the operator that the par 5 is almost full.
The alarm buzzer 9 is operated "continuously" in order to be alerted, and when the alarm stop button 26 is turned on to stop this state, the operation of the alarm buzzer 9 is immediately stopped. In this case, the set speed V5 of the combine harvester 1 stored in the microcomputer 20 is compared with the input signal from the potentiometer R23 corresponding to the current running speed of the combine harvester 1, and the running speed V of the combine harvester 1 is set. If the speed is less than or equal to the speed vs, the same traveling speed is maintained, and if the traveling speed V of the combine 1 is faster than the set speed IIfv5, the combine 1 is decelerated to the set speed v5i.

Then, in the slow running state with the above-mentioned set speed v5, when the full paddy bag is removed and a new paddy bag is set and filling of the grains is started, the grain level in the hopper 5 is is lowered, and based on that, the paddy sensor I-I 7
is turned off, the combine harvester 1 is controlled to return to the traveling speed corresponding to the operation position of the shift lever 19 described above.

When performing the operation shown in FIG. 2, the deceleration control described above is executed every time the hopper full sensor, that is, the paddy sensor H7 is turned on.

However, if the operator has enough time to follow the travel of the combine 1, the above-described deceleration control may actually reduce work efficiency. less than,
A control means for dealing with such a case will be explained. The diagram in Figure 3 explained below is a partial change to the operation flow shown in Figure 2, and the operation is roughly the same as that in Figure 2, so the changes are not included. The explanation will focus on the parts mentioned above.

In FIG. 3, when the paddy sensor H7 is turned on while the paddy sensor L6 is on, integration of the soft timer in the microcomputer 20 is started, and at the same time, the good news stop button 26 is turned off, causing the hopper 5 to reach a state just before being full. The alarm buzzer 9 is activated "continuously" to alert the operator that the situation is present. Then, the time set in the microcomputer 20 after the paddy sensor H7 is turned on is calculated by Ir.
J: When 10 seconds have elapsed, automatic deceleration control is executed in which the combine harvester 1 described in FIG.
(See 1).

In the above case, if the operator turns on the good news stop button 26 to stop the alarm buzzer 9 within the set time 18 after the paddy sensor H7 is turned on, in this case, the automatic deceleration control described above will be activated. The operation is not executed, and the combine I is maintained at the traveling speed corresponding to the operation position of the speed change lever 19 (see time chart (2) in FIG. 4).

In addition, if the operator removes the full paddy bag and starts filling the newly set paddy bag with grains within the set time Ts after the paddy sensor H7 is turned on, the grains in the hopper 5 When the grain level is low, the paddy sensor I7 is turned off, so the automatic deceleration control described above is not executed and the combine 1 maintains the running speed corresponding to the operation position of the speed change lever 19. Continue (Time chart in Figure 4 (3)
)reference).

(G) As described in detail, according to the present invention, the speed change lever 19 and the continuously variable transmission 13 are each connected to a displacement detector 21 . , 23 to the a+U control unit 20 such as a microcomputer, and also connects the hopper full sensor 7 installed in the hopper 5 to the control 22 and 20, and further connects the continuously variable transmission 13 to the control unit 20. The above control unit, )2
0, and when the hopper full visual sensor 7 is turned on, the continuously variable transmission 13 is controlled by
Therefore, when the hopper 5 is full and the combine harvester 1 is in the state of direct MiJ, the combine harvester 1 cannot automatically perform the deceleration operation, and the operator does not have to perform the troublesome deceleration operation of the combine harvester 1. This eliminates the need for the operator to perform hard work, especially in the case of the combine harvester 1 that runs automatically.Furthermore, the speed at which grains are stored in the hopper 5 is also slowed down, so it is not necessary to do so until overflow occurs. This saves time and allows workers to do their work with more time to spare. In addition, when the worker removes the full paddy bag in the above state and resumes filling the newly set paddy bag with grains, the continuously variable transmission 13 returns to the speed position corresponding to the operation position of the speed change lever 19 + "N," so in this case as well, the operator of the combine L continues to monitor the work status of other workers and then performs a speed increase operation. In addition to being freed from the troublesome operation of manually increasing the speed of the combine harvester, it also protects other workers from danger caused by careless speed increase operations on the part of the operator. 1 automatically continues reaping work at the normal working speed, work efficiency is greatly improved.In addition, the automatic deceleration control mechanism according to the present invention is attached to combine harvesters currently in production. Paddy sighting sensor,
Since it can be realized mainly through software processing by using the operating device or actuator as is, the cost performance is extremely good.

[Brief explanation of the drawing]

Figure 1 shows the automatic deceleration control of the combine harvester according to the present invention.
+, q control program, diagram, Figure 2 is the work broach yard, Figure 3 is a work flowchart with some modifications added to the flow in Figure 2, and Figure 4 is the flowchart in Figure 3. It is a time chart explaining. 1... Combine harvester, 7... Hoyper Ft cup report sensor (hull sensor H), 13... Continuously variable transmission,
19... Gear shift lever, 20... Control unit (microcomputer), 21... Displacement detector (potentiometer PI) N 23... Displacement detector (potentiometer Pg) Applicant: Mitsubishi Agricultural Machinery Co., Ltd.

Claims (2)

[Claims] (1) Has a hopper full warning sensor 7 and a gear shift lever 1
In the combine 1 equipped with a continuously variable transmission 13 operated by a switch 9, the shift lever 19 and the continuously variable transmission 13 are connected to the control unit 20 via displacement detectors 21 and 23, respectively, and the hopper is full. The sensor 7 is connected to the control unit 20, and the continuously variable transmission 13 is connected to be controlled by the control unit 20, and when the hopper full good news sensor 7 is turned on, The continuously variable transmission 13 is operated to the deceleration position set in the control unit 20 regardless of the operation position of the shift lever, and when the hopper full a warning sensor 7 is turned off, the continuously variable transmission 3 to the above gear shift lever~
An automatic deceleration control mechanism of Funbein when the hopper is full is configured to return to the speed position corresponding to the operating position of No. 19. (2) When the hopper is full according to claim 1, the automatic deceleration control mechanism is configured such that the automatic deceleration control mechanism is not activated if a predetermined operation is performed within a set time after the hopper full good news sensor 7 is turned on. automatic deceleration control mechanism for combine harvesters.