JP2001061331A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester which detects the rate of changes in working speeds with an acceleration rate sensor in response to the changes of a field. SOLUTION: This combine harvester can horizontally control its body. Therein, an acceleration rate sensor for detecting the acceleration rate of the frame in the vertical direction is disposed. When a larger acceleration rate than a preliminarily set acceleration rate is detected with the acceleration sensor, the speed of a rolling cylinder is enlarged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine for performing a mowing operation, and more particularly to a combine for quickly rolling against a sudden change in a field.

[0002]

2. Description of the Related Art When there is a change in a field during a mowing operation, it is necessary to change a working speed in response to the change.
In the past, since it was handled manually, it was difficult to respond quickly to a sudden change in the field,
There was a problem that work was difficult.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. It is an object of the present invention to provide an acceleration sensor for detecting a change in working speed in response to a change in a field. It is an object of the present invention to provide a combine which can detect a change in speed.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a combine which can control a vehicle body in a horizontal direction. Means for increasing the rolling cylinder speed when an acceleration greater than the detected acceleration is detected.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing the overall configuration of a combine according to the present invention.

As shown in FIG. 1, a combine according to the present invention includes a crawler a, a crawler drive shaft b, a cutting unit c, a feed chain d for feeding a cut grain stem to a threshing machine while conveying the combine, and a threshing machine. A grain tank e for storing the stored grains, an auger f for discharging the stored grains outside the machine, and the like.

FIG. 2 is a control block diagram of the combine according to the present invention. As shown in the figure, the vertical acceleration sensor 2, the vehicle body horizontal control switch 3, the mowing / threshing clutch switch 4, and the auxiliary transmission switch 5 are connected to the input side of the CPU 1 via the input interface 1a. Are connected to the left and right rolling cylinder speed switching solenoids 6 and 7 via the output interface 1b.

FIG. 3 is a flowchart of the control according to the present invention. When the process is started, it is first determined whether or not the sub-transmission switch 5 is on (step 1). If it is on, it is determined whether the cutting / threshing clutch switch 4 is on (step 2). It is determined whether the horizontal control switch 3 is turned on (step 3).

An acceleration sensor 2 for detecting the vertical acceleration of the body when the vehicle body horizontal control is being performed.
It is determined whether or not the sensor value is within a preset area (step 4). As shown in FIG. 5, for example, when an area indicated by A having a small acceleration is set in advance, and the sensor value of the acceleration sensor 2 is within the area A, the rolling cylinder speed is set to a normal setting (step 6), and the acceleration is set. When the sensor value of the sensor 2 is out of the range of A, that is, when an acceleration greater than the set acceleration is detected, the rolling cylinder speed is set to be increased (step 5). To change the rolling cylinder speed, the left and right rolling cylinder speed switching solenoids 6 and 7 are actuated, and the speed switching valve (see FIG. 4) is throttled when it is set to the standard setting, and when speeding up, it is opened without being throttled to enter and exit the cylinder. This is done by changing the oil volume.
That is, it is determined whether the rolling cylinder speed is standard correction or rapid correction based on the detection of the acceleration sensor 2. When the vertical movement of the vehicle body is fast, the correction is performed by rapid correction.

With the above control, it is possible to automatically respond to a rapid change in the field at a high speed and to respond to a gradual change in the field at a slow (standard) speed. Is very easy to do. For example, even if there is a sudden sinking of the vehicle body, the acceleration sensor 2 detects
This can be handled by increasing the rolling cylinder speed. Further, according to the present invention, it is possible to easily cope with a mowing trace at the time of normal mowing, a mud pushing of the mowing portion at the time of backing the wetland, and the like.

Next, in connection with the present invention, there is provided a combiner which increases the pitching cylinder speed when an acceleration greater than a preset acceleration is detected by an acceleration sensor for detecting the vertical acceleration of the body. explain.

In this combine, when the acceleration sensor detects an acceleration greater than the set acceleration, control is performed to increase the pitching cylinder speed instead of increasing the rolling cylinder speed.

That is, a pitching cylinder speed switching solenoid is connected to the output side of the control block diagram shown in FIG. 2, and in a flowchart of FIG. 3, it is determined in step 4 that the sensor value of the acceleration sensor 2 is within a preset region. If the sensor value of the acceleration sensor 2 is within the region of A (FIG. 5), the pitching cylinder speed is set to the normal setting (step 6), and the sensor value of the acceleration sensor 2 is set to A
Outside of the range, that is, when an acceleration larger than the set acceleration is detected, the pitching cylinder speed is set to be increased.
(Step 5). To change the pitching cylinder speed, operate the pitching cylinder speed switching solenoid and change the speed switching valve in the same manner as for the rolling cylinder described above.
(See FIG. 4) is performed by squeezing when the standard setting is set, and opening without changing the squeezing when speeding up by changing the amount of oil flowing into and out of the cylinder.

By performing the above control, it is possible to respond to a rapid change in the field at a high speed and to respond to a gradual change in the field at a slow (standard) speed. The work becomes easier for the operator.

Next, in connection with the present invention, a description will be given of a combine for automatically raising the cutting unit when the vehicle body suddenly stops.

This combine is provided with an acceleration sensor for detecting the acceleration of the fuselage in the front-rear direction, and when the acceleration sensor detects an acceleration that is larger than a set acceleration when the fuselage stops when the work state of the combine is detected. Is configured to automatically raise the reaper to a predetermined height.

FIG. 6 is a control block diagram of the combine. As shown in FIG. 1, a front-rear direction acceleration sensor 11, a cutting vertical sensor (to ground) 12, a cutting vertical sensor (to the machine) 13 via an input interface (not shown) on the input side of the CPU 10,・ Threshing clutch switch 4
And the auxiliary transmission switch 5 is connected, and the cutting side vertical solenoid valve 14 is connected to the output side via an output interface (not shown).

FIG. 7 is a flowchart of the control. When the process is started, first, it is determined whether or not the subtransmission switch 5 is on (step 7). If it is on, it is determined whether or not the mowing / threshing clutch switch 4 is on (step 8).

When the harvesting / threshing clutch switch 4 is turned on and the combine working state is detected, it is determined whether or not the sensor value of the acceleration sensor 11 for detecting the longitudinal acceleration of the aircraft is within a preset area. Do
(Step 9). For example, when an area indicated by A as shown in FIG. 8 is set in advance, and the sensor value of the acceleration sensor 11 is within the area of A, the reaping unit is not automatically raised and is left as it is (step 10) When the sensor value of the acceleration sensor 11 is out of the range of A due to a sudden stop of the vehicle body, that is, when the value of the acceleration that is more negative than the set acceleration, that is, the magnitude of the negative acceleration is detected, the mowing unit is automatically raised to a predetermined height. (Step 11). The vertical position of the mowing part is detected by the mowing vertical sensors 12 and 13, and when raising the mowing part to a predetermined height, the mowing vertical solenoid valve 14 is fully opened and the solenoid is suddenly operated.

In the working state of the combine, the reaping unit is at a low position. Therefore, when the vehicle body is suddenly stopped for some reason, the vehicle body may lean forward due to the momentum, and the reaping unit may plunge into the ground. Therefore, as in the present embodiment,
When the sudden stop of the vehicle body is detected by the acceleration sensor, the mowing portion is quickly raised to prevent the mowing portion from sneaking into the ground, thereby improving safety. Also,
Since the mowing part is automatically raised, the operation of the operator is unnecessary, which improves the operability and contributes to the safety. Further, work efficiency can be improved.

Next, in connection with the present invention, a combine for automatically lowering the cutting unit when the vehicle body suddenly starts will be described.

This combine is provided with an acceleration sensor for detecting the acceleration of the body in the front-rear direction, and when the harvesting / threshing clutch switch is started with "ON", the acceleration sensor detects an acceleration larger than the set acceleration. Is configured to automatically lower the mowing unit to a predetermined height.

FIG. 9 is a flowchart of the control. When the process is started, similarly to the flow shown in FIG. 7, it is first determined whether or not the sub-transmission switch 5 is turned on (step 1).
2) If it is on, it is determined whether the mowing / threshing clutch switch 4 is on (step 13).

When the harvesting / threshing clutch switch 4 is turned on and the combine working state is detected, it is determined whether or not the sensor value of the acceleration sensor 11 is within a preset area at the start of forward work (step 14). . For example, when the area indicated by A as shown in FIG. 10 is set in advance, and the sensor value of the acceleration sensor 11 is within the area of A, the reaper does not automatically lower and remains in the same state (step 15) When the sensor value of the acceleration sensor 11 is outside the range of A due to the sudden start of the vehicle body, that is, when an acceleration greater than the set acceleration is detected, the mowing unit is automatically lowered to a predetermined height (working position) ( Step 16).

As in the present embodiment, when the sudden start of the vehicle body is detected by the acceleration sensor, the mowing portion is lowered to the working position, so that the rising of the mowing portion is suppressed at the time of sudden starting, so that the mowing marks become clear. The mowing performance is improved. In addition, since the mowing part is automatically lowered, manual operation by the operator is unnecessary, and operability is improved. Further, work efficiency can be improved.

Next, in connection with the present invention, a description will be given of a combine which automatically raises the front when the vehicle body suddenly stops.

The combine is provided with an acceleration sensor for detecting the acceleration of the body in the front-rear direction, in which the vehicle body can be controlled horizontally in the front-rear direction. When the work state of the combine is detected, the acceleration sensor operates when the body stops. When an acceleration that is larger than the set acceleration is detected, the vehicle is automatically set in the forward raising state.

FIG. 11 is a control block diagram of this combine. As shown in the figure, a longitudinal acceleration sensor 11 is provided on the input side of the CPU 10 via an input interface.
The pitching stroke sensor 15, the vehicle body horizontal control switch 3, the mowing / threshing clutch switch 4, and the auxiliary transmission switch 5 are connected, and the output side is connected to the pitching cylinder solenoid valve 16 via an output interface.

FIG. 12 is a flowchart of the control. When the process is started, it is first determined whether or not the sub-transmission switch 5 is on (step 1), as in the flow of FIG.
7) If it is on, it is determined whether the harvesting / threshing clutch switch 4 is on (step 18), and if it is on, it is determined whether the vehicle body horizontal control switch 3 is on (step 19).

An acceleration sensor 1 for detecting the longitudinal acceleration of the body when the vehicle body level control is performed.
It is determined whether or not the sensor value of 1 is within a preset area (step 20). Here, when the area indicated by A in FIG. 8 is set in advance, if the sensor value of the acceleration sensor 11 is within the area of A, the pitching setting of the forward raising state is not automatically performed (step 21), when the sensor value of the acceleration sensor 11 is out of the range of A, that is, when it detects a large negative value from the set acceleration, that is, a large negative acceleration,
The pitching setting of the forward raising state is automatically performed (step 22).

As described above, in the working state of the combine, the reaping unit is at a low position. Therefore, when the vehicle body is suddenly stopped for some reason, the vehicle body leans forward by the momentum,
There is a risk that the reaper will dig into the ground. Therefore, as in the present embodiment, when a sudden stop of the vehicle body is detected by the acceleration sensor, the vehicle is pitched and responded by pitching. Can be prevented, and safety is improved.
In addition, since it can be automatically dealt with, there is no need for operator operation, which improves operability and contributes to safety. Further, work efficiency can be improved.

Next, in connection with the present invention, a description will be given of a combine that automatically raises the vehicle when the vehicle body suddenly starts.

This combine is provided with an acceleration sensor for detecting the acceleration of the body in the front-rear direction, and when the harvesting / threshing clutch switch is started with the "ON" position, the acceleration sensor detects an acceleration larger than the set acceleration. Is to automatically put the vehicle body in the rear-up state.

FIG. 13 is a flowchart of the control. When the process is started, similarly to the flow shown in FIG. 12, it is first determined whether or not the subtransmission switch 5 is on (step 23). If it is on, the reaping / threshing clutch switch 4 and the vehicle body horizontal control switch 3 are respectively turned on It is determined whether or not it has entered (steps 24 and 25).

When the harvesting / threshing clutch switch 4 is turned on and the combine working state is detected, it is determined whether or not the sensor value of the acceleration sensor 11 is within a preset area at the start of forward work (step 26). . For example, when the area indicated by A as shown in FIG. 10 is set in advance, and the sensor value of the acceleration sensor 11 is within the area of A, the vehicle body is not automatically set to the rearward state (step 27). When the sensor value of the acceleration sensor 11 is outside the range of A due to sudden start of the vehicle body, that is, when the acceleration detected is greater than the set acceleration, the pitching setting of the vehicle body is automatically set to the rearward state (step 28).

As in the present embodiment, when a sudden start of the vehicle body is detected by the acceleration sensor, it is responded by pitching, and the vehicle body is automatically raised to a rearward state to return to a horizontal state.
At the time of sudden start, the mowing part is prevented from rising too much, and the mowing marks become clear, so that mowing performance is improved. In addition, since it can respond automatically, there is no need for manual operation by the operator,
Operability is improved. Further, work efficiency can be improved.

[0037]

As described above in detail, according to the combine of the present invention, it is possible to determine whether the rolling cylinder speed is to be corrected at the standard level or to be rapidly corrected by detecting the acceleration sensor in the vertical direction of the fuselage. When the vertical movement of the field is fast, for example, it is possible to automatically respond to a rapid change in the field at a high speed, and to respond to a gradual change in the field at a slow (standard) speed, The effect that work becomes very easy is produced. Further, according to the present invention, it is possible to easily cope with a mowing trace at the time of normal mowing, a mud pushing of the mowing portion at the time of backing the wetland, and the like.

[Brief description of the drawings]

FIG. 1 is a side view showing an overall configuration of a combine according to the present invention.

FIG. 2 is a control block diagram of a combine according to the present invention.

FIG. 3 is a flowchart of control.

FIG. 4 is a configuration diagram showing wiring of a cylinder system.

FIG. 5 is a diagram illustrating a set acceleration region.

FIG. 6 is a control block diagram of the combine.

FIG. 7 is a flowchart of control.

FIG. 8 is a diagram showing a set acceleration region.

FIG. 9 is a flowchart of combine control.

FIG. 10 is a diagram showing a set acceleration region.

FIG. 11 is a control block diagram of a combine.

FIG. 12 is a flowchart of control.

FIG. 13 is a flowchart of control.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CPU 2 Vertical acceleration sensor 3 Body level control switch 4 Cutting / threshing clutch switch 5 Sub-speed switch 6, 7 Rolling cylinder speed switching solenoid 11 Front-back direction acceleration sensor 12, 13 Cutting vertical sensor

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Hiroshi Nishizaki 1-Yachikura, Tobe-cho, Iyo-gun, Ehime Pref.

Claims (1)

[Claims] In a combine capable of horizontal control of a vehicle body, an acceleration sensor for detecting vertical acceleration of a body, and a rolling cylinder speed when an acceleration larger than a predetermined acceleration is detected by the acceleration sensor. Characterized by comprising means for speeding up.