JPH0624450B2 - Combine control system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention provides a sorting device for sorting a leaked material from a handling room in a threshing device so as to be adjustable to a sorting state according to a throughput. The vehicle speed detection means for detecting the traveling speed of the machine body, and the sorting state of the sorting device based on the detection information of the vehicle speed detection means so as to be in a sorting state corresponding to a state in which the processing amount becomes smaller as the vehicle speed becomes slower. First to adjust automatically
An automatic adjusting means and a second automatic adjusting means for automatically adjusting a sorting state of the sorting device to a set target sorting state which is manually set are provided, and the first automatic adjusting means is operated or the second automatic adjusting means. And a switching means for selectively activating the first automatic adjusting means and the second automatic adjusting means based on the instruction information of the instruction means. A manually operated control condition adjusting means for changing and adjusting the target sorting state at the vehicle speed is provided, and the first automatic adjusting means automatically determines the sorting state of the sorting device based on the information of the control condition adjusting means. The second automatic adjustment means is configured to adjust, based on the information of the control condition adjustment means, a selection state in which the first automatic adjustment means automatically adjusts at the maximum vehicle speed, the setting target. Combine that is configured to determine as a separate state related sorting controller.

[Conventional technology]

The sorting control device for a combine of this kind utilizes the fact that the vehicle speed and the processing amount in the threshing device are in a proportional relationship during the mowing work, and is the first for automatically adjusting the sorting state of the sorting device according to the vehicle speed. The automatic adjusting means and the second automatic adjusting means for maintaining the manually set sorting state regardless of the vehicle speed are provided together. And the first and second
The target selection state of each automatic adjustment means can be adjusted by using one control condition adjustment means, and an operation error occurs such that only one of the automatic adjustment means selection states is adjusted and the other adjustment is forgotten. Even if the first automatic adjusting means is erroneously switched to the second automatic adjusting means during the mowing work, the automatic adjustment is performed so that the processing amount is large and the sorting state is at the maximum safe vehicle speed. This is to prevent troubles such as clogging of the processed material during the cutting operation (see Japanese Patent Application No. 62-283801 previously proposed by the applicant).

When the selection state is manually set by the second automatic adjusting means, it is desirable that the target selection state can be set over the entire adjustable range so that it can be used at the time of inspection. Therefore, in the past, the control condition adjusting means was able to adjust the target selection state over the entire settable range.

[Problems to be Solved by the Invention]

However, if the control condition adjusting means can adjust the selection state over the entire settable range, there are the following inconveniences.

That is, in the combine, so-called pillow threshing may be performed in which the traveling is stopped, and at the time of the pillow threshing, the control condition adjusting means adjusts to a sorting state corresponding to a small processing amount, and When the automatic adjusting means is operated, there is a possibility that the processing amount becomes the sorting state in the smallest state corresponding to the vehicle speed of 0 despite the fact that the processing object is actually present, and the processing object is clogged. .

The present invention has been made in view of the above circumstances, and an object thereof is to make it possible to adjust the target selection state of each of the first automatic adjustment unit and the second automatic adjustment unit by one control condition adjustment unit. Even if the control condition adjusting means is erroneously operated, troubles such as clogging of the processed material do not occur.

[Means for Solving the Problems]

In the combine sorting control device according to the present invention, a sorting device that sorts the leaked material from the handling chamber in the threshing device is adjustably provided in a sorting state according to the throughput, and detects the traveling speed of the machine body. Vehicle speed detecting means and first automatic adjusting means for automatically adjusting the sorting state of the sorting device based on the detection information of the vehicle speed detecting means so that the sorting state corresponds to a state in which the processing amount becomes smaller as the vehicle speed becomes slower. And a second automatic adjusting means for automatically adjusting the sorting state of the sorting device to a set target sorting state which is manually set, and actuates the first automatic adjusting means or the second automatic adjusting means. And a manual operation type instructing means for instructing whether or not, and a switching means for selectively operating the first automatic adjusting means and the second automatic adjusting means based on instruction information of the instructing means. A manually operated control condition adjusting means for changing and adjusting the target sorting state at the vehicle speed is provided, and the first automatic adjusting means automatically determines the sorting state of the sorting device based on the information of the control condition adjusting means. The second automatic adjustment means is configured to adjust the selection state automatically adjusted by the first automatic adjustment means at the maximum vehicle speed based on the information of the control condition adjustment means as the set target selection state. It is configured to make a distinction, and its characteristic configuration is as follows.

That is, the first automatic adjusting means adjusts the sorting state of the sorting device to the set value when the target sorting state to be adjusted becomes smaller than the set value corresponding to the state where the throughput is small. It is configured as follows.

[Action]

That is, even if the first automatic adjusting means is operated in a state where the target selection state is adjusted by the control condition adjusting means to be smaller than the set value corresponding to the state where the throughput is small, the selection state is smaller than the set value. The lower limit of the sorting state is automatically limited so that the sorting state corresponding to a small processing amount is not adjusted.

〔The invention's effect〕

Therefore, even if the first automatic adjusting means is operated in the erroneous operation state in which the adjustment value of the target selection state by the control condition adjusting means is set smaller than the set value corresponding to the state in which the processing amount is small, Since the sorted state is maintained at the sorted state corresponding to the above-mentioned set value, it is possible to avoid the occurrence of troubles such as clogging of the processed material due to an erroneous operation.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 4, the combine is a crawler traveling device.
(1) equipped with a machine (V), a threshing device (2) mounted on the upper part of the machine (V), and a mowing unit (3) attached to the front of the machine (V) is doing.

The mowing unit (3) is a raising device (4), a cutting blade (5) for cutting the root of the grain culm, and a mowing grain culm that is conveyed to the rear of the machine and supplied to the threshing device (2). It is equipped with a device (6).

Incidentally, in FIG. 4, (S ₀ ) detects the presence or absence of grain culm supply to the threshing unit (2) by contacting with the root of the cut grain culm in the transport route of the transport unit (6). It is a stock sensor.

As shown in FIG. 5, the output of the engine (E) mounted on the aircraft (V) is the belt tension type threshing clutch (7).
Is transmitted to the threshing device (2) via, and a belt tension type traveling clutch (8), and a traveling hydraulic continuously variable transmission (9) of the crawler traveling device (1). Driven to drive case (9A).

Further, a part of the output transmitted to the drive case (9A) is transmitted to the mowing section (3) via a belt tension type mowing clutch (10).

In FIG. 5, (S ₁ ) is a vehicle speed detecting means for detecting the traveling speed (abbreviated as vehicle speed in the following description) of the machine body (V) based on the output speed of the transmission (9). Vehicle speed sensor.

However, although illustration is omitted, the forward / backward switching and shifting of the vehicle body (V) are manually adjusted by manually operating the transmission device (9).

As shown in FIG. 6, the threshing device (2) nips and conveys a handling chamber (A) accommodating a handling barrel (11) and a horizontally tilted grain culm supplied from the transport device (6). Feed chain (12), cross-flow fan (13) for dust removal, sorting device (B) consisting of Kara (14) and oscillating sorting plate (15), first mouth (16) for grain collection, Also, each has a second opening (17) for collecting the second material.

In the lower part of the handling room (A), a receiving net (18) for grain selection is provided, and at the end of the handling room (A), the processed material remaining in the handling room (A) is placed. The discharge port (19) for discharging is opened. However, the processed material leaking through the receiving net (18) and the discharge port (19)
The processed products discharged through the are collectively referred to as leaked processed products from the handling chamber (A).

The swing selection plate (15) is located above the Karato (14), the Glen pan (20), the chaff sheave (21) located subsequent to the Glen pan (20), and the chaff sheave (21). Stroke (22), the chaff sheave (2
The auxiliary glen pan (23) located below the starting end side of (1) and the gren sheave (24) located subsequent to the auxiliary glen pan (23) are respectively provided, and they are a pair of left and right side plates (2
It is installed between 5).

Incidentally, in FIG. 6, (26) is a Glen pan for the discharge port arranged so as to face the discharge port (19), and (27) is the Glen pan (26).
Is a plurality of rods that are located next to each other and lined up in the horizontal treasure box, and the Glen pan (26) and rods (27) are rocked together with the rocking selection plate (15). . Also, (2
8) is a rotary body with a blade that acts on the processed material on the rod material (27).

As shown in FIGS. 7 to 9, the chaff sheave (21)
Is a strip-shaped member (a), (a ') that is juxtaposed in the processing product transfer direction.
And the gap (s) formed between adjacent strip plate members (a) and (a ') can be changed and adjusted.

To add the explanation, the upper end of one strip plate member (a ') among the plurality of strip plate members (a), (a') is a fulcrum that penetrates the pair of left and right side plates (25). The side plate (2) is fitted onto the shaft (29) and is attached to both end portions of the strip plate member (a ′) on the lower end side.
A connecting pin (30) penetrating the long hole (b) formed in 5) is fixed.

A pair of left and right links (31) externally fitted to the fulcrum shaft (29) and the connecting pin (30) are provided, and an operation arm (32) is attached to one of the pair of left and right links (31). Has been.

Other strip plate members (a) except the one strip plate member (a ′)
Is the side plate (25) using the U-shaped mounting bracket (33).
Is attached to. That is, in the U-shaped mounting member (33), the shaft portion (33a) on the upper end side is fixed by penetrating to the side plate (25), and the shaft portion (33b) on the lower end side is the side plate.
It is configured to penetrate the long hole (b) formed in (25). Then, each of the other end portions of the other strip plate member (a) on the lower end side has a shaft portion (33) on the lower end side of the mounting metal fitting (33).
It is fitted on b).

The lower end side shaft portion (33b) of the connecting pin (30) and the plurality of mounting brackets (33) are connected by a linking plate (34), so that each strip plate member (a), (a). The space (S) is changed and adjusted by integrally swinging ′) with their upper ends as fulcrums.

And an electric motor for changing and adjusting the interval (S)
(M ₁ ) is provided on the fixed frame side of the threshing device (2), and the spring (35) that biases the closing side where the interval (S) is small.
Is connected to the operation arm (32), and the operation arm (3
And 2), the electric motor (M ₁₎ at normal and reverse driven screw shaft (3
The top member (37) that engages with 6) is interlocked by a release wire (38).

In FIG. 7, (S ₂ ) is a potentiometer for detecting a chaff opening for detecting the open / closed state of the interval (S), that is, the chaff opening as a positional change of the top member (37). The free end of the lever (39) is connected to the top member (37). Further, (40a) and (40b) are switches that are pressed by the operation lever (39) when the top member (37) reaches the adjustment limit, and automatically stop the electric motor (M ₁ ). It is provided for.

The Karato (14) is constructed so that its rotation speed can be adjusted to change and adjust the amount of air blown.

In addition, as shown in FIG. 10 and FIG. 11, the input pulley (41) attached to the rotary shaft (14A) of the Karatsu (14) is shown.
Is divided into a pair of left and right pulley portions (41a), (41b), and the distance between the pair of left and right pulley portions (41a), (41b) is adjusted to change the rotation speed of the Kara (14). A so-called split pulley type transmission (42) for changing and adjusting is configured.

In FIG. 10, (43) is a transmission belt for transmitting the output of the engine (E) to the input pulley (41), and (44) is a tension pulley.

One of the pair of left and right pulley portions (41a), (41b) (41a) is
The rotary shaft (14A) is fixed, and the other (41b) is the rotary shaft.
It is fitted so as to be slidable in the axial direction of (14A). However, the sliding side pulley part (41b) is the fixed side pulley part (41b).
The pulleys (41a) and (41b) are connected to each other by a connecting pin (45) attached to (a) so that the two pulleys (41a) and (41b) can be integrally rotated and the distance between them can be changed and adjusted.

Explaining the structure for changing and adjusting the interval between the pulley parts (41a) and (41b), the sliding pulley part (41b)
First attached to the boss of the bearing using a bearing (46)
With the rotation of the first cam forming member (47), the cam forming member (47) and the second cam forming member (48) attached to the fixed frame side of the threshing device (2) respectively, Both pulley parts
Cam protrusions (47a) and (48) for moving (41a) and (41b) into perspective.
a) has been formed (see Fig. 12).

An electric motor (M ₂ ) for adjusting the air flow rate is attached to the fixed frame side of the threshing device (2), and the first cam forming member (4
7), an operation arm (49) for gear shifting operation is attached, and the operation arm (49) and a top member (51) that meshes with a screw shaft (50) that is driven in the forward and reverse directions by the electric motor (M ₂ ). ) And are interlockedly connected by a release wire (52), so that the first cam forming member (47) is rotatably operated by the electric motor (M ₂ ) for adjusting the air flow rate, and the Karako (14) ) Is configured to change and adjust the rotation speed.

Incidentally, in FIG. 10, (S ₃ ) is a potentiometer for detecting the air flow rate of toumi that detects the speed change state, that is, the sorted air flow as a position change of the top member (51), and the free end of the operation lever (53) is , Is connected to the top member (51). Also, (54a),
(54b) is a switch that is pressed by the operation lever (53) when the top member (51) reaches the gear shift limit,
It is provided to automatically stop the electric motor (M ₂ ).

Further, in FIG. 11, (S ₄ ) is a Toumi rotation speed sensor for detecting the rotation speed of the Karato (14).

Next, an electric motor for adjusting the spacing of the chaff sheave (21).
(M ₁ ) and the electric motor (M ₂ ) for adjusting the air flow rate of the above-mentioned Kara Minoh (14)
A control configuration for controlling the sorting state of the sorting device (B) by activating the above will be described. In the following description, the detection information of the vehicle speed sensor (S ₁ ) is used as the handling room.
It is used as information corresponding to the amount of grain culm supplied to (A).
Of course, the higher the vehicle speed, the greater the amount of grain culm supplied.

As shown in FIG. 1, a control device (55) utilizing a microcomputer is provided, and the control device (55) automatically adjusts a sorting state according to a vehicle speed or a manually set sorting state. A threshing auto switch (S ₅ ) for instructing whether to detect whether or not the machine body (V) is in the reverse state based on whether or not the traveling transmission (9) has been operated to the reverse side. Back switch (S ₆ ), the stock sensor (S ₀ ), an engine speed sensor that detects the speed of the engine (E)
(S ₇ ), the vehicle speed sensor (S ₁ ), the toumi rotation speed sensor (S
₄ ), the potentiometer for detecting the chaff opening (S ₂ ), the potentiometer for detecting the toumi air volume (S ₃ ), the potentiometer for adjusting the chaff opening at the same vehicle speed (S ₈ ), the same vehicle speed Connected to each of the potentiometer (S ₉ ) for adjusting the volume of the thyme air in the plant and the switch for selecting the culm (S ₁₀ ) for selecting whether the grain to be threshed is rice or wheat. ing.

Then, the control device (55), based on the information preset and stored and various input information, the both electric motor
The operation of (M ₁ ) and (M ₂ ) is controlled to automatically adjust the selection state of the selection device (B).

That is, using the control device (55), the sorting device
The vehicle speed sensor (S) is set so that the sorting state of (B) corresponds to a state in which the processing amount becomes smaller as the vehicle speed becomes slower.
₁ ) A first automatic adjusting means (100) for automatically adjusting the sorting state based on the detection information, and a second automatic adjusting means for automatically adjusting the sorting state of the sorting device (B) to a set target sorting state which is manually set. (101) and the threshing auto switch (S ₅ as a manually operated instruction means for instructing whether to operate the first automatic adjustment means (100) or the second automatic adjustment means (101). ), The switching means (102) for selectively operating the first automatic adjusting means (100) and the second automatic adjusting means (101) are respectively configured.
Then, the chaff opening adjustment potentiometer (S ₈ ) and the toumi air volume adjustment potentiometer (S ₉ ) correspond to the manually operated control condition adjusting means for changing and adjusting the target selection state at the same vehicle speed. Become.

That is, when the first automatic adjusting means (100) is operated to automatically adjust the sorting state of the sorting device (B) according to the vehicle speed, as shown in FIG. Is based on the detection information of the vehicle speed sensor (S ₁ ), a sorting state corresponding to a state in which the amount of leakage processing material increases as the vehicle speed increases, that is, the interval (S) of the chaff sheave (21) (below Abbreviated as "chaff opening") and the Kara (14)
The air flow rate (hereinafter, abbreviated to Toumi air volume) is controlled to be large.

And, even at the same vehicle speed, the actual amount of processed material may differ due to the difference in the graining state of the grain culm,
At the maximum vehicle speed, the chaff opening potentiometer (S ₈ ) and the toumi air volume adjusting potentiometer (S ₉ ) are respectively adjusted so that the chaff opening and the toumi air volume can be adjusted to different values at the same vehicle speed. By setting each of the chaff opening and Toumi air volume corresponding to the sorting state, and using the sorting state at the set maximum vehicle speed as a reference, and correcting the reference sorting state according to the vehicle speed, the actual The sorting state is set according to the amount of processed material (see FIGS. 3B and 3C).

However, in the present embodiment, the vehicle speed is divided into four zones based on three reference values (V ₁ ), (V ₂ ), and (V ₃ ), which are set in three stages, and each zone has the same value. The chaff opening or the same toumi air volume is set. The speed difference between the maximum value and the minimum value of each zone is the same.

Further, as the vehicle speed is reduced more than the value set based on the speed difference, the chaff opening adjusting electric motor (M ₁ ) is operated with a delay time (for example, about 10 seconds), and The electric motor (M ₂ ) for adjusting the toumi air volume is configured to operate without delay time. The value of the delay time is the time required for the cut culm to be conveyed to the threshing device (2), and the time required for the culm supplied to the handling room (A) to be treated. It will be set correspondingly.

Furthermore, during non-mowing work such as headland where the stock sensor (S ₀ ) is in the OFF state or when the machine is retracting, the sorting state set in advance corresponds to the state in which the amount of processed material is small regardless of the vehicle speed. I am trying to maintain it. When operating in a preset sorting state, the chaff opening adjustment electric motor (M ₁ ) is operated with a delay time, and the toumi air volume adjustment electric motor (M ₂ ) is operated without delay time. In addition, the delay time is set such that the set value for rice (t ₁ ) is larger than the set value for wheat (t ₂₀ ).

The operation of the control device (55) will be described in the following.
As shown in the figure (a), the control device (55) executes an initial setting process when activated, then executes a process of reading detection data of various sensors, and then an output process described later. And target value setting processing. After that, each process from the process of reading the detection data of the various sensors is repeated.

Next, each process will be described in detail.

Explaining the output process, as shown in FIG. 2B, first, it is determined whether or not the threshing auto switch (S ₅ ) is ON, and if it is ON, the selection state is changed. A process for automatically adjusting according to the vehicle speed will be executed, and when it is OFF, a process for maintaining the selected state as the manually set selected state will be executed.

That is, the process executed when the threshing auto switch (S ₅ ) is ON corresponds to the first automatic adjusting means (100),
The processing executed when the threshing auto switch (S ₅ ) is OFF corresponds to the second automatic adjusting means (101), and the threshing auto switch (S ₅ ) is ON or OFF.
Whether to execute the process corresponding to the first automatic adjusting means (100) based on whether the second automatic adjusting means (101)
The process of switching whether or not to execute the process corresponding to is selectively switched between the first automatic adjusting unit (100) and the second automatic adjusting unit (101) based on the instruction information of the manually operating instruction unit. It corresponds to the means (102).

When the threshing auto switch (S ₅ ) is ON, the chaff opening detection potentiometer (S ₂ ) is calculated from the control target values of the chaff opening and the toumi air volume.
Also, the present values detected by the respective potentiometers (S ₃ ) for detecting the volume of the stormy air are subtracted to obtain the stormy deviation and the chaff deviation, respectively.

The control target value of each of the chaff opening and the toumi air volume is a potentiometer for adjusting the chaff opening (S ₈ ) and a potentiometer for adjusting the toumi air volume (S ₉ ) as described later.
The adjustment value at the maximum vehicle speed adjusted by each is corrected and used according to the detected vehicle speed, but when the control is started, it is set to a standard value set in advance.

However, each of the control target values has a large correction value due to the vehicle speed due to pillow threshing processing or the like performed in a state where the traveling is stopped, and a preset value corresponding to a small processing amount is set. If the value is smaller than the value (T ₃ ), (C ₃ ) and corresponds to the sorting state, in order to prevent troubles such as clogging of the processed material, the set value (T ₃ ) , (C ₃ ) is maintained in the selected state (Fig. 3
(See (a)).

Then, based on the detection information of the Toumi rotation speed sensor (S ₄ ), by determining whether or not the rotation speed of the Kara (14) is equal to or higher than the set rotation speed (500 rpm), the Kara (14) is Determine whether it is rotating.

If the rotation speed of the Karato (14) is more than the set rotation speed,
Based on the sign and the magnitude of the toumi deviation, it is determined whether each is within the set dead zone, on the strong side that weakens the sorting wind, or on the weak side that strengthens the sorting wind. However, if it is on the weak side, the strong side, that is, the side that increases the number of revolutions, performs the processing of strong output that operates the electric motor (M ₂ ) for adjusting the fan air volume, and if it is on the strong side, the number of revolutions Is performed, and if it is within the dead zone, the electric motor for adjusting the volume of the toumi air flow (M ₂ )
Will be stopped and the current selection state will be maintained.

Subsequently, it is determined whether the chaff deviation is in the closed side, the open side, or the setting dead zone, and if it is in the closed side, the chaff sheave (21) interval (S) (chuff opening ) Is performed to operate the electric motor (M ₁ ) for adjusting the chaff opening so as to widen), and when it is on the open side, it processes the closed output, and when it is in the dead zone, , It will be stopped and the current selection state will be maintained.

Incidentally, when the rotation speed of the Karatsu (14) is less than or equal to the set rotation speed, the adjustment of the toumi air volume is not performed, and when the rotation speed is less than or equal to the set rotation speed, the threshing auto switch (S _In the operating state of the second automatic adjusting means (101) in the OFF state of ₅ ), only the chaff opening can be changed and adjusted.

That is, as described above, the adjustment of the toumi air volume is performed by changing the rotational speed of the Karato (14) by the split pulley type transmission (42), and thus the threshing device (2 Since it is not possible to adjust the volume of Toumi in the operation stop state of), when the number of rotations of the Karato (14) is less than or equal to the set number of rotations, the adjustment of the volume of Tumi is not performed. is there.

However, since the chaff sheave (21) is rocked together with the sorting device (B) when the threshing device (2) is in an operating state, it is not possible to confirm the opening degree thereof, Even when the threshing device (2) is stopped, the chaff opening adjustment potentiometer (S ₈ ) can be used to change and adjust the chaff opening so that the chaff opening adjustment state can be easily checked. I am doing it.

On the other hand, when the threshing auto switch (S ₅ ) is OFF, the chaff opening and the toumi air volume are the chaff opening adjusting potentiometer (S ₈ ) and the toumi air volume adjusting potentiometer (S ₉ ). A value obtained by subtracting the current value from the set adjustment value so as to be maintained at each adjustment value set by each is obtained as the toumi deviation and the chaff deviation. The threshing auto switch (S ₅ )
Each of the chaff opening and the toumi air volume when is OFF is over the entire adjustment range including the range of the set value (T ₃ ), C ₃ ) or less, the chaff opening adjustment potentiometer ( S ₈ ) and the toumi air flow rate adjusting potentiometer (S ₉ ) can be set.

Next, the target value setting process will be described based on the flowchart shown in FIG.

First, in order to execute this target value setting process every set time (500 ms), after checking the timing of the set time elapse, whether the back switch (S ₆ ) is in the ON state or not. To determine.

Then, when the back switch (S ₆ ) is OFF and the stock origin sensor (S ₀ ) is ON, it is judged that the reaping work is being performed, and it is turned ON from the OFF state for the first time. By determining whether the state has changed,
It is judged whether it is in a state immediately after the start of work or in a state where continuous reaping work is being performed.

In addition, when the back switch (S ₆ ) is ON, and
The back switch (S ₆ ) is OFF and the stock sensor
The processing when (S ₀ ) is OFF will be described later.

When the stock source sensor (S ₀ ) is turned on for the first time, it is determined that the work is started, and the current rotation speed by the engine rotation speed sensor (S ₇ ) is set as the reference rotation speed, and the first rotation is performed. If it is not, it is determined whether or not the reference rotation speed is higher than the current rotation speed, and if the reference rotation speed is not higher than the current rotation speed, that is, the current rotation speed is higher than the current rotation speed. Is higher than the reference rotation speed set at the start of work, the reference rotation speed is updated to the current rotation speed.

Next, the deviation between the reference rotation speed and the current rotation speed is obtained as a rotation speed down value, and the rotation speed down value is set to the set rotation speed (200
rpm) or more, it is determined whether the load state on the engine (E) is in the overload state.

When the rotation speed down value is less than the set rotation speed, it is judged that the vehicle is not in an overload state, and as described above, the slower the vehicle speed, the weaker the Toumi air volume and the closer the chaff opening is. As described above, based on the detection information of the vehicle speed sensor (S ₁ ), a toumi correction value for correcting the toumi air volume to the weak side according to the vehicle speed and a chaff for correcting the chaff opening to the closed side. Obtain each of the correction values (Fig. 3 (b),
(See (c)).

However, while the toumi correction value is always obtained, the chaff correction value causes the chaff opening adjustment electric motor (M ₁ ) to operate with a delay time when the vehicle speed is greatly reduced by a set value or more. In order to do so, it is obtained by the process described below.

That is, after calculating the difference between the previous vehicle speed stored when the target value setting process was executed last time and the current vehicle speed, whether or not the delay flag for determining whether or not it is during the delay time is ON. To judge.

If the delay flag is ON, it is determined whether or not the delay time has elapsed, and if it is, the delay flag is reset to OFF to obtain the chaff correction value. When the delay flag is OFF, it is determined whether or not the deceleration is equal to or more than the set value, based on the difference obtained in the above-described calculation process.

When it is determined that the deceleration is equal to or greater than the set value,
When the delay flag is set to ON and it is determined that the deceleration does not exceed the set value, the chaff correction value is obtained.

When the rotation speed down value is equal to or higher than the set rotation speed, each of the toumi correction value and the chaff correction value is set to zero, and the sorting state of the sorting device (B) is set to the maximum processed amount. By controlling to the corresponding set selection state at the maximum vehicle speed, the overload state in the threshing device (2) can be quickly eliminated.

After obtaining each of the toumi correction value and the chaff correction value, the ON time of the stock origin sensor (S ₀ ) is set in advance in correspondence with the time required for the threshing process to stabilize from the start of work. If it is less than the first set time by determining whether or not the set time ((t ₁ = 5 seconds) or more is determined, the target target value that is the control target value of the above-mentioned toumi air volume is set to If it is set to the set value (T ₁ ) corresponding to the state of, and it is the first set time or longer,
A value obtained by subtracting the toumi correction value from the adjustment value set in (S ₉ ) is set as the tomi target value. However, if the winnowing fan target value processing amount is smaller than the set value corresponding to the small state (T ₃₎ is, as described above, is maintained at a value corresponding to the set value (T ₃₎ It will be (Fig. 3
(See (a)).

Similarly, when the ON time of the stock sensor (S ₀ ) is less than the second set time ((t ₁₁ = 5 seconds), the chaff target value that is the control target value of the chaff opening is When the amount of processed material is set to a set value (C ₁ ) corresponding to a small state and the second set time or more is set, the chaff opening adjustment potentiometer is set.
The chaff correction value is subtracted from the adjustment value according to (S ₈ ). However, as in the case of the Toumi air volume, when the set chaff target value is smaller than the set value (C ₃ ) corresponding to the state where the processed material amount is small, the set value (C ₃ ) Will be maintained at the value corresponding to (Fig. 3
(See (a)).

Next, control when the back switch (S ₆ ) is ON, and when the back switch (S ₆ ) is OFF and the stock yuan sensor (S ₀ ) is OFF will be described.

That is, during non-mowing work such as when the machine is retreating or turning, the grain culm supply to the threshing device (2) is stopped, so that the amount of the processed material decreases regardless of the vehicle speed. Therefore, the target values (T ₂ ) and (C ₂ ) of the chaff opening and the toumi air flow rate are set so that the sorting state corresponding to the small amount of processed material is automatically set. However, the target level (T ₂ ) is set when the back switch (S ₆ ) is ON and when the back switch (S ₆ ) is ON.
Respect and the strain based sensors ₆₎ is in the OFF (S ₀₎ is when it is OFF, the are as immediately set, chaff target value (C _2), the strain based sensors (S ₀ ) Is turned off based on the elapsed time and the type of grain culm. The toumi target value (T ₂ ) when the back switch (S ₆ ) is ON, and when the back switch (S ₆ ) is OFF and the stock market sensor (S ₀ ) is OFF And, each value of the chaff target value (C ₂ ) is more than the value of the set value (T ₃ ), (C ₃ ) for limiting the lower limit of the target value corrected according to the vehicle speed. Although it is set to a small value, it may be set to the same value.

That is, the elapsed time since the stock origin sensor (S ₀ ) is turned off is less than the third set time (t ₂ = for example, 20 seconds) in the case of rice, and the fourth set time (in the case of wheat) ( t ₂₀ = eg 10
If it is less than 2 seconds), the control of the chaff opening is stopped and the current state is maintained, and if the third set time has passed in the case of rice and the fourth time has passed in the case of wheat, the target value
It is set to (C ₂ ). The control of the chaff opening is also stopped when the airframe (V) is in the retracted state and the stock origin sensor (S ₀ ) is in the ON state.

[Another embodiment]

In the above embodiment, the case where the vehicle speed is detected based on the output rotation speed of the traveling transmission (9) is illustrated, but the vehicle speed is indirectly detected based on the operation state of the transmission. The specific configuration of the vehicle speed detecting means can be changed in various ways.

Further, in the above embodiment, the split pulley type transmission (42) is used to change the number of revolutions of the Karato (14) to adjust the selection air volume, but, for example, the Karato ( 14)
May be driven by a variable speed device such as an electric motor, and various modifications can be made to the specific configuration for adjusting the toumi air volume and the specific configuration for adjusting the chaff opening.

Further, in the above embodiment, the case where both the chaff opening degree and the toumi air volume are adjusted has been exemplified, but it is also possible to adjust only one of the chaff opening degree and the toumi air volume, and the sorting device (B). The specific configuration of each part for adjusting the selection state of can be variously changed.

Further, in the above embodiment, in order to automatically adjust the sorting state of the sorting device (B) according to the vehicle speed, the control target value at the maximum vehicle speed is adjusted by the potentiometers (S ₈ ) and (S ₉ ) as control conditions. Along with this, the control target value at the maximum vehicle speed has been exemplified such that it becomes smaller as the vehicle speed becomes slower, and is corrected according to the vehicle speed.For example, a plurality of combinations of the vehicle speed and the selection state may be set. It may be stored as a parameter of the control condition and a plurality of sets of selection states may be selected by a switch or the like, and a manually operated control condition adjusting means for changing and adjusting the target selection state at the same vehicle speed. Various changes can be made to the specific configuration.

In the above embodiment, the vehicle speed is divided into a plurality of zones,
The case where the chaff opening degree and the toumi air volume are adjusted in a plurality of steps has been described as an example, but the chaff opening degree and the toumi air quantity may be adjusted steplessly according to the vehicle speed, and the first automatic adjusting means (100 ) And the specific configuration of the second automatic adjusting means (101) can be variously changed.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a combine selection control device according to the present invention. FIG. 1 is a block diagram of a control configuration, and FIG.
(B) and (c) are flow charts of control operation, Fig. 3 (a) is an explanatory diagram showing the relationship between vehicle speed and sorting state, and (b) is a relationship between correction value of Toumi air volume and vehicle speed. FIG. 4 is an explanatory view showing the relationship between the correction value of the chaff opening and the vehicle speed, FIG. 4 is a schematic side view of the combine, FIG. 5 is an electric system diagram, and FIG.
FIG. 7 is a cutaway side view of the threshing device, FIG. 7 is a cutaway side view showing the structure of a chaff sheave, FIG. 8 is an enlarged side view of a main part thereof, and FIG. First
FIG. 10 is a side view of a main part showing a gear shifting structure of Kara Minoh, FIG. 11 is a cutaway front view of an input pulley portion of Kara Minoh, and FIG. 12 is a developed plan view of a cam forming member. (2) …… Thrusher, (A) …… Handling room, (B) …… Sorting device, (V)
…… Aircraft, (S ₁ ) …… Vehicle speed detection means, (S ₅ ) …… Manual operation type indication means, (S ₈ ), (S ₉ ) …… Control condition adjustment means, (100) …… First Automatic adjusting means, (101) ... second automatic adjusting means, (102) ... switching means.

Claims (1)

[Claims] 1. A threshing device (2) is provided with a sorting device (B) for sorting the leaked material from the handling room (A) so that it can be adjusted to a sorting state according to the throughput, and the machine body (V ) Of the vehicle speed detecting means (S ₁ ) for detecting the traveling speed, and a sorting state corresponding to a state in which the processing amount becomes smaller as the vehicle speed becomes slower, based on the detection information of the vehicle speed detecting means (S ₁ ). The sorting device (B)
First automatic adjusting means (100) for automatically adjusting the sorting state of
A second automatic adjusting means (101) for automatically adjusting the sorting state of the sorting device (B) to a set target sorting state which is manually set is provided, and the first automatic adjusting means (100) is operated or the first automatic adjusting means (100) is operated. 2 Manual operation type instruction means (S ₅ ) for instructing whether or not to operate the automatic adjustment means (101), and the first automatic adjustment means (100) and the above based on the instruction information of the instruction means (S ₅ ). Switching means (102) for selectively operating the second automatic adjusting means (101)
Is provided, and manually operated control condition adjusting means (S ₈ ) and (S ₉ ) for changing and adjusting the target selection state at the same vehicle speed are provided, and the first automatic adjusting means (100) Based on the information of the condition adjusting means (S ₈ ), (S ₉ ),
The second automatic adjusting means (101) is configured to automatically adjust the selection state of (B), and the second automatic adjusting means (101) controls the control condition adjusting means (S ₈ ), (S
₉ ) is a combine sorting control device configured to determine the sorting state automatically adjusted by the first automatic adjusting means (100) at the maximum vehicle speed as the set target sorting state based on the information in ₉ ). The first automatic adjusting means (100)
If the target sorting state to be adjusted is smaller than the set value corresponding to the small throughput, the sorting device
(B) A combine selection control device configured to adjust the selection state to the set value.