JPH0624449B2 - Combine control system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is provided with an oscillating sorting plate for sorting a leaked material from a threshing chamber of a threshing device, and a Kara-no-ko for blowing sorting air. The rocking sorting plate includes a chaff sheave composed of strip-shaped members juxtaposed to each other in the workpiece transfer direction, and is for adjusting a gap to adjust a gap formed between adjacent strip-shaped members. The actuator is provided, an actuator for adjusting the air flow rate for changing and adjusting the air flow rate of the agarwood is provided, and a grain culm supply amount detecting means for detecting the grain culm supply amount to the handling room is provided, and the grain culm In order to increase the gap as the supply amount increases, and to increase the air flow amount as the grain culm supply amount increases, the gap adjustment actuator and the actuator based on the detection information of the vehicle speed detection means and the Actuator for adjusting air flow Motor and a sorting controller combine the control means is provided for operating the actuator of the air blowing amount for adjustment.

[Conventional technology]

In view of the fact that the larger the amount of grain culm supplied to the handling room of the threshing device, the greater the amount of processed material leaked from the handling room, the sorting control device for such a combine considers that the gap between the strip-shaped members in the chaff sheave It is designed to automatically change and adjust the amount of air blown from sardines and sardines according to the amount of grain culm supplied to the handling room.

By the way, there is a time lag from the time when the amount of grain culm supplied to the handling room changes to the time when the amount of leaked processed material from the handling room changes. In other words, during the above-mentioned time delay, the amount of processed leakage material corresponds to the amount of grain culm supplied before the change.

Therefore, conventionally, the fact that the higher the traveling speed is, the larger the amount of grain culm supplied to the handling room is, the amount of grain culm supplied is discriminated by detecting the traveling speed, and the grain culm is supplied to the handling chamber. When the amount is reduced, the actuator for gap adjustment and the actuator for air flow adjustment are activated with a delay of a certain time so that the grains are not sorted and collected as desired and discharged outside the threshing device. I was trying to avoid the occurrence of so-called No. 3 loss. By the way, the delay time in this case is set as a value including the time required for the harvested grain culms to be transported to the handling room. Incidentally, in the past, there is also one in which one actuator is used for both the gap adjusting actuator and the air blowing amount adjusting actuator. (See, for example, JP-A-61-170311.) [Problems to be Solved by the Invention] Even with the above-mentioned conventional means, the third loss could not be sufficiently suppressed.

This is because even if the air flow rate is adjusted to reduce the air flow rate of Kara Tsubo, there is a considerable time delay before the air flow rate at the sorting location decreases to an air flow rate suitable for the amount of the leaked material. It occurs in.

The present invention has been made in view of the above circumstances, and an object thereof is to appropriately suppress the occurrence of the third loss by appropriately adjusting the gap and the air flow rate. There is a point to do.

[Means for Solving the Problems]

The characteristic configuration of the combine selection control device according to the present invention is as follows.
The larger the amount of grain culm supplied to the handling room, the larger the gap between the chaff sheaves, and the larger the amount of grain culm supplied to the handling room, the greater the amount of air blown by the sardine lees. Control means for operating the gap adjustment actuator and the air flow rate adjustment actuator based on the detection information, with the decrease of the grain culm supply amount, the gap adjustment actuator is operated with a delay time, and, The air blow rate adjusting actuator is configured to operate without a delay time or with a delay time smaller than the gap adjusting delay time, and its operation and effect are as follows.

[Action]

That is, when the amount of grain culm supplied to the handling room decreases, the actuator for gap adjustment is operated with a sufficient time delay until the amount of the leakage treated material corresponding to the reduced amount of grain culm supplied is reached. On the other hand, when the actuator for air flow rate adjustment is operated earlier than the operation of the actuator for gap adjustment, when the amount of leaked material corresponds to the reduced grain culm supply volume, the air volume at the sorting location The amount of air flow suitable for the amount of leaked material or a landscape close to the amount of air flow.

〔The invention's effect〕

Therefore, after the decrease in the amount of grain culm supplied to the handling room and at the time when the amount of the leaked waste corresponding to the reduced amount of grain culm supplied is reached, the air volume at the gap and the sorting place can be adjusted appropriately, respectively. You can now more reliably avoid the loss.

〔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.
It has a vehicle body (V) equipped with (1), a threshing device (2) mounted on the upper portion of the vehicle body (V), and a mowing section (3) attached to the front part of the vehicle body (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 conveying device that conveys the mowing grain culm to the rear of the machine and supplies it to the threshing device (2). It has (6).

In the figure, (S ₀ ) detects the presence or absence of grain culm supply to the threshing device (2) by contacting the root of the harvested grain culm in the transport route of the transport device (6). It is a stock origin sensor (S ₀ ) as a grain culm supply detecting means.

As shown in FIG. 5, the output of the engine (E) mounted on the vehicle body (V) is a belt tension type threshing clutch (7).
Driven to the threshing device (2) via the and, via the belt tension type traveling clutch (8), and the hydraulic stepless transmission for traveling (9), the crawler traveling device (1) is driven. It is transmitted to the 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).

Further, in the figure, (S ₁ ) is a vehicle speed detection for detecting the traveling speed of the vehicle body (V) (may be abbreviated as vehicle speed in the following description) based on the output speed of the transmission (9). It is a vehicle speed sensor as a means.

However, although illustration is omitted, forward / backward switching and gear shifting of the vehicle body (V) are artificially adjusted by manually operating the traveling transmission (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). A feed chain (12), a cross-flow fan (13) for dust removal, a sorting device (B) consisting of Kara (14) and an oscillating sorting plate (15), a 1st mouth (16) for grain recovery, And a second mouth (17) for collecting the second thing.

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 are arranged in the horizontal direction, and the Glen pan (26) and the 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 the 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 attached to the side plate (25) using a U-shaped attachment fitting (33). That is, the U-shaped mounting bracket (3
3), 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 an elongated hole (b) formed in the side plate (25). It is configured to penetrate. Then, both end portions of the other strip plate member (a) on the lower end side are externally fitted to the shaft portion (33b) on the lower end side of the attachment fitting (33).

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

Then, an electric motor for chaff adjustment (M ₁ ) for changing and adjusting the gap (S) is provided on the fixed frame side of the threshing device (2), and the gap (S) is a small closing side. A spring (35) biased to the operation arm (32) is coupled to the operation arm (32) and the operation shaft (32) is meshed with the screw shaft (36) which is driven in the forward and reverse directions by the electric motor (M ₁ ). The top member (37) is interlockingly connected with a release wire (38).

Incidentally, in FIG. 7, (S _Z ) is a chaff opening detection potentiometer for detecting the adjustment state of the gap (S) as a positional change of the top member (37), and the potentiometer for the operation lever (39) thereof. The free end is connected to the top member (37).

Further, (40a), (40b) is a switch that is pressed by the operation lever (39) when the gap (S) reaches the adjustment limit, for automatically stopping the electric motor (M ₁ ). It is provided in.

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 FIGS. 10 and 11,
The input pulley (4) attached to the rotary shaft (14A) of the Karato (14)
1) is divided into a pair of left and right pulley portions (41a), (41b), and the rotation of the tomi (14) is adjusted by changing the distance between the pair of left and right pulley portions (41a), (41b). A so-called split pulley type transmission (42) for changing and adjusting the number 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), and while the pulleys (41a) and (41b) rotate integrally, the distance between them can be adjusted.

Explaining the structure for changing and adjusting the distance between the pulley parts (41a) and (41b), the sliding pulley part (41a)
First attached to the boss of the bearing using a bearing (46)
Each of the cam forming member (47) and the second cam forming member (48) attached to the fixed frame side of the threshing device (2) is accompanied by rotation of the first cam forming member (47). Both pulley parts (4
Cam protrusions (47a) and (48a) for moving perspectives (1a) and (41b)
Are 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), and thus 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) It is configured to change and adjust the rotation speed of the.

In FIG. 10, (S ₃ ) is a potentiometer for detecting the flow rate of air, that is, a toumi air flow rate detecting potentiometer for detecting the selection air flow rate as a positional change of the top member (51), and the free end of the operating lever (53) is , Is connected to the top member (51).

Further, (54a) and (54b) are switches that are pressed by the operation lever (53) when the top member (51) reaches the gear shift limit, and automatically stop the electric motor (M ₂ ). It is provided for.

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 gap 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 information corresponding to the amount of grain culm supplied to the handling room (A). Of course, the higher the traveling speed, the larger the amount of grain culm supplied.

As shown in FIG. 1, a control device (55) using 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. Threshing auto switch to instruct whether to do
(S _5), a back switch as retraction detecting means and the traveling speed change device for (9) which detects whether or not operated to the retracted side body (V) for detecting whether or not a retracted state ( S _6), the strain based sensors (S _0), the engine speed sensor for detecting the rotational speed of the engine (E) (S _7), the vehicle speed sensor (S _1), the winnowing fan rotational speed sensor (S ₄₎ , The chaff opening detection potentiometer (S ₂ ), the toumi air volume detection potentiometer (S ₃ ), the chaff opening adjustment potentiometer (S ₈ ) that adjusts the chaff opening at the same vehicle speed to a large and small size, and the same vehicle speed The potentiometer (S ₉ ) for adjusting the volume of the stormy air in S. and the switch (S ₁₀ ) for selecting whether the grain culm is rice or wheat are connected.

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 selection state control means (100) for controlling the selection state of (B) is configured.

The control of the sorting state of the sorting device (B) will be described. As shown in FIG. 3 (a), basically, the higher the vehicle speed 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 processed material to be leaked is large, that is, the gap (S) of the chaff sheave (21) (hereinafter sometimes abbreviated as chaff opening) is large and the amount of air blown from the Karato (14) is large. (Hereinafter, it may be abbreviated to Toumi air volume.) It is controlled so as to be large.

Also, even at the same vehicle speed, the actual amount of leaked material may differ due to the difference in the grain setting state of the grain culm, etc., so that the chaff opening and the air flow rate at the same vehicle speed can be adjusted to different sizes. , The chaff opening potentiometer (S ₈ ) and the toumi air flow rate potentiometer (S ₉ ) respectively, to set the chaff opening and the air flow rate corresponding to the sorting state at the maximum vehicle speed. At the same time, the sorting state at the set maximum vehicle speed is used as a reference, and the reference sorting state is corrected according to the vehicle speed, so that the actual sorting state becomes the sorting state according to the amount of leaked material. (See Fig. 3 (b) and (c)).

However, in this embodiment, the vehicle speed is set to three reference values (V ₁ ), (V ₂ ),
It is divided into four zones based on (V ₃ ), and the same chaff opening or the same air flow rate is maintained in each zone. The speed difference between the maximum value and the minimum value of each zone is the same.

Further, as the traveling speed is reduced more than the value set based on the speed difference, the electric motor for gap adjustment is
(M ₁ ) is operated with a delay time (for example, about 10 seconds),
Moreover, it is configured to operate the electric motor (M ₂ ) for adjusting the air flow rate without delay time. Incidentally, the delay time, the time the harvested culm is transported to the threshing device (2), and
It will be set in consideration of the time required to process the supplied grain culm.

Furthermore, during non-mowing work on headlands, etc. where the stock sensor (S ₀ ) is in the OFF state, or when the machine is retracting, regardless of the vehicle speed, the preset sorting corresponding to the state where the amount of leaked material is small is set. Will be kept in a state. Then, when operating in a preset sorting state, the electric motor for gap adjustment (M ₁ ) is operated with a delay time, and the electric motor for blow rate adjustment (M ₂ )
Is operated without delay time, in addition,
Regarding the delay time, the set value of rice (t ₁ ) is the set value of wheat
Greater than (t ₂₀ ).

Hereinafter, description will be added based on the operation of the control device (55).

As shown in FIG. 2 (A), the control device (55) executes an initial setting process when it is activated, and then executes a process of reading the data of the sensors.

Next, execute output processing and target value setting processing, and after that,
The process from reading the data of the sensors is repeated.

In the output process, as shown in FIG. 2B, first, it is determined whether or not the threshing auto switch (S ₅ ) is ON,
When it is ON, the chaff opening detection potentiometer (S ₂ ) and the toumi air flow detection potentiometer (S) are calculated from the respective control target values of the chaff opening and the toumi air flow.
_The present value detected in each of ₃ ) is subtracted to obtain each of the Toumi deviation and the chaff deviation.

However, the respective control target values of the chaff opening degree and the toumi air volume are the maximum vehicle speeds adjusted by the chaff opening node potentiometer (S ₈ ) and the toumi air volume adjusting potentiometer (S ₉ ), respectively, as described later. The adjustment value at the time is corrected and used according to the vehicle speed, but when the control is started, it is set to a standard value set in advance.

On the other hand, when the threshing auto switch (S ₅ ) is OFF, the chaff opening and the toumi air volume are respectively 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 is obtained as the toumi deviation and the chaff deviation.

Then, based on the detection information of the Toumi rotation speed sensor (S ₄ ), by determining whether or not the Kara (14) is set rotation speed (500 rpm) or more, the Kara (14) is rotated. Judge whether or not.

When the rotation speed of the Karato (14) is equal to or higher than the set value rotation speed, based on the sign and size of the Toumi deviation, is it within the set dead zone or on the strong side that weakens the sorting wind, and , Each of the weakening side to strengthen the sorting wind, if the toumi deviation is on the weak side, the strong side, that is, the electric motor for adjusting the sorting wind (M ₂ )
Is performed, and if it is on the strong side, weak output processing that reduces the rotation speed is performed, and
When it is within the dead zone, the electric motor (M ₂ ) for adjusting the sorting air is stopped to maintain the current sorting state.

Subsequently, it is determined whether the chaff deviation is in the closed side, the open side, or the setting dead zone, and when it is on the closed side, the gap (S) of the chaff sheave (21) is expanded as described above. Performs the opening output process that operates the electric motor (M ₁ ) for adjusting the chaff opening, performs the closing output process when it is on the open side, and stops it when it is in the dead zone. It will maintain the selected state.

Incidentally, when the rotation speed of the toumi (14) is less than or equal to the set rotation speed, the adjustment of the air volume of the toumi is not performed, and
When the number of revolutions is equal to or lower than the set rotational speed and the threshing auto switch (S ₅ ) is in the OFF state, 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 rotation speed of the Karato (14) by the split pulley type transmission (42), and thus the threshing device.
In the operation stopped state of (2), since it is not possible to adjust the flow rate of the seaweed, if the rotation speed of the seaweed (14) is less than or equal to the set rotation speed, do not adjust the flow volume of the seaweed. Is there.

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

In the target value setting process, as shown in FIG. 2C, after checking the timing of the lapse of the set time (500 ms), the process is executed every set time (500 ms). , It is determined whether or not the back switch (S ₆ ) is in the ON state.

When the back switch (S ₆ ) is OFF,
It is determined whether or not the stock origin sensor (S ₀ ) is in the ON state.

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 for the first time. By determining whether or not the state has changed, it is determined whether the operation is started or the reaping operation is continuously 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 it is turned on for the first time. If not, it is determined whether or not the reference rotation speed is higher than the current rotation speed, and when the reference rotation speed is not higher than the current rotation speed, that is, the current rotation speed is higher. If the rotation speed is higher than the reference rotation speed set at the start of the 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 to determine whether the load on the engine (E) is overloaded.

When the rotation speed down value is less than the set rotation speed (200 rpm), it is determined that the vehicle is not overloaded, and as described above, the slower the vehicle speed, the weaker the Toumi air volume becomes and the chaff opening degree becomes. Based on the detection information of the vehicle speed sensor (S ₁ ) so as to be on the closed side, the toumi correction value and the chaff opening degree for correcting the toumi air volume to the weak side according to the vehicle speed are corrected to the closed side. To obtain each chaff correction value (Fig. 3
(See (b) and (c)).

However, while the toumi correction value is always obtained, the chaff correction value is set as follows in order to operate the electric motor (M ₁ ) with a delay time when the traveling speed is greatly reduced by more than the set value. Will be required in.

That is, after calculating the difference between the previous vehicle speed and the current vehicle speed stored when the target value setting process was executed last time, the delay flag for determining whether or not the delay time is in progress is turned on.
Check whether or not.

If the delay flag is ON, it is checked whether or not the delay time has elapsed. If it has, the delay flag is reset to OFF and the chaff correction value is obtained.

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 by the above calculation.

Then, when the deceleration is equal to or more than the set value, the delay flag is set to ON. If the deceleration is not more than the set value, the chaff correction value is calculated.

In addition, when the rotation speed down value is equal to or higher than the set rotation speed (200 ppm), 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 the maximum leakage. By controlling to the set sorting state at the maximum vehicle speed corresponding to the amount of processed material, the threshing device (2) can quickly perform the sorting process, and the overload state 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 to correspond to the time required for stabilizing the threshing process from the start of work.
It is determined whether or not the set time (t ₁ = 5 seconds) is exceeded, and if it is less than the first set time, the target value of the toumi air volume is set to a set value ( T ₁ ) and the first set time or more, the value obtained by subtracting the toumi correction value from the adjustment value set by the toumi air volume adjustment potentiometer (S ₃ ) is set to the toumi target value. Set as.

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 leaked. 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 ₂ ).

When the back switch (S ₆ ) is ON, and when the back switch (S ₆ ) is OFF and the stock sensor (S ₀ ).
When the control is performed when is OFF, the non-shearing work such as the retreat or turning of the machine reduces the amount of the leaked processed substance of the threshing device (2) regardless of the vehicle speed. The target values of the chaff opening degree and the toumi air flow rate are set so that the selected state corresponding to the above condition is obtained.

However, while setting the target value (T ₂ ) immediately,
The chaff target value (C ₂ ) is set based on the time elapsed since the stock origin sensor (S ₀ ) was turned off and the type of grain culm.

That is, if the elapsed time since the stock sensor (S ₀ ) was turned off is less than the third set time (t ₂ eg 20 seconds) for rice,
Also, if it is less than the fourth set time (t ₂₀ = 10 seconds, for example) in the case of wheat, the chaff opening control is stopped to maintain the current state, and in the case of rice, the third set time (t ₂ ) is set. When it elapses, and
In the case of wheat, if the fourth set time (t ₂₀ ) elapses, the target value
Set to (C ₂ ).

The control of the chaff opening is also stopped when the airframe is in the backward state and the stock sensor (S ₀ ) is in the ON state.

Further, the threshing auto switch (S ₅ ) is formed in a push button type having a lighting lamp (L) which lights up in an ON operation state as shown in FIG. 13, and projects upward from the operation panel (P). The side wall (Z) is formed of a transparent resin material. As a result, other operation tools arranged on the operation panel (P)
It can be illuminated by light from the side wall (Z).

[Another embodiment]

In the above embodiment, the traveling speed is exemplified to be detected based on the output speed of the traveling transmission (9), but it is indirectly detected based on the operating state of the transmission. However, the specific configuration of the vehicle speed detecting means can be changed in various ways.

Further, in the above embodiment, the case where the split pulley type speed change device (42) is used to adjust the selection air volume by changing the rotation speed of the Karato (14) has been exemplified.
(14) may be driven by a variable speed device such as an electric motor, a specific configuration for adjusting the sorting air volume, and a specific configuration for adjusting the opening degree of the chaff sheave (21), The specific configuration for adjusting the selection state of the selection device (B) can be changed in various ways.

Further, in the above embodiment, the sorting state of the sorting device (B), in order to automatically adjust according to the vehicle speed, potentiometer (S ₈ ),
In (S ₉ ), the control target value at the maximum vehicle speed is adjusted as a control condition, and the control target value at the maximum vehicle speed is corrected according to the vehicle speed so that it becomes smaller as the vehicle speed becomes slower. Although the case has been illustrated, for example, a plurality of sets of the combination relationship between the vehicle speed and the selection state may be stored as a parameter of the control condition, and the selection state of the plurality of sets may be selected by a switch or the like. The specific configuration of the means for changing and adjusting the target selection state and the control means (100) can be variously changed.

Further, in the above embodiment, the case where the traveling speed is divided into a plurality of zones and the chaff opening degree and the air flow rate are adjusted in a plurality of stages has been exemplified, but the chaff opening degree and the air flow rate are continuously changed according to the traveling speed. May be adjusted.

Also, to adjust the air flow rate as the traveling speed decreases,
The air flow rate may be adjusted with a delay time smaller than the delay time of (S).

Further, as in the above embodiment, when the cutting unit (3) is driven by the output of the traveling transmission device (9), it is necessary for the cutting speed to be conveyed to the threshing device (2) by the traveling speed. Since the time fluctuates, the gap adjusting actuator M ₁ may be operated with a longer delay time as the speed is greatly reduced.

Furthermore, in the above embodiment, the detection information of the traveling speed is used as the handling room.
When using as information corresponding to the (A) grain culm supply amount,
That is, the case where the grain culm supply amount detection means is configured by using the vehicle speed detection means (S ₁ ) has been illustrated, but the grain culm supply amount detection means (K)
The specific configuration of can be variously changed. For example, as shown in FIG. 14, provided with a thickness detecting means (56) for detecting the thickness of grain culms conveyed in layers at the starting end side portion of the feed chain (12) of the threshing device (2), The grain detecting means (56) may constitute the grain culm supply amount detecting means (K). The thickness detecting means (56) illustrated is a sensor piece (56a) which is urged downward by its own weight or a spring and swings up and down according to the thickness of the grain, and the swing of the sensor piece (56a). Potentiometer to detect position
(56b) consists of. In addition, in FIG. 14, (12A) is a holding rail arranged along the feed chain (12),
Attached to the fixed side support frame (57) so that it can move up and down,
It is biased toward the feed chain by the spring (12B).

By the way, in the case of detecting the grain culm supply amount by the thickness detecting means (56), after the decrease in the grain culm supply amount is detected, the delay time until the amount of the leakage treated material corresponding to the decrease is Since it is shorter than the case where the grain culm supply amount is detected by the traveling speed, it is necessary to set the delay time for adjusting the gap (S) accordingly.

Also, although not illustrated, a transfer device (6) having the same structure as the thickness detecting means (56), for example, the transfer device (6) described in the above embodiment, is used.
You may make it detect the thickness of the grain culm conveyed by and may detect the amount of grain culm supplied to the handling room (A). In this case also, it is necessary to set the delay time for adjusting the clearance (S) in accordance with the delay time until the amount of leaked material corresponding to the decrease is detected after the decrease in the grain culm supply amount is detected. There is.

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 the sorting state, and FIG. 3 (b) is an explanatory diagram showing the relationship between the correction value of the sorting air volume and the vehicle speed. FIG. 4C is an explanatory diagram 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 a transmission system diagram, and FIG. 6 is a notched side surface of the threshing device. Fig. 7, Fig. 7 is a cutaway side view showing the structure of the chaff sheave, Fig. 8 is an enlarged side view of the essential part thereof, Fig. 9 is a developed plan view showing the attachment structure of the band plate member, and Fig. 10 is a plan view of Kara FIG. 11 is a side view of a main part showing a speed change structure, FIG. 11 is a cutaway front view of an input pulley of Kara Minoh, FIG. 12 is a developed plan view of a cam forming member, FIG. 13 is a front view of a threshing auto switch, and FIG.
The figure is a side view of another embodiment. (2) …… Threshing device, (14) …… Kara-mitsu, (15) …… Swing selection plate, (21) …… Chaff sheave, (100) …… Control means, (A)…
... Handling room, (a), (a ') ... Strip plate member, (K) ... Grain culm supply amount detecting means, (S) ... Gap, (M ₁ ) ... Actuator for adjusting gap, (M ₂ ) …… Actuator for adjusting air flow.

Claims (1)

[Claims] Claims: 1. A swinging sorting plate (15) for sorting the leaked material from the handling room (A) of the threshing device (2), and a sardine for sending sorting air.
(14) is provided, the swing selection plate (15) is provided with a chaff sheave (21) composed of strip plate members (a), (a ') juxtaposed in the processed material transfer direction, A gap adjusting actuator (M ₁ ) for changing and adjusting a gap (S) formed between adjacent ones of the strip-shaped members (a) and (a ′) is provided.
An actuator (M ₂ ) for adjusting the air flow rate for changing and adjusting the air flow rate of (14) is provided, and a grain culm supply amount detecting means (k) for detecting the grain culm supply amount to the handling room (A) is provided. In order to increase the gap (S) as the grain culm supply amount increases, and to increase the air flow rate as the grain culm supply amount increases, the grain culm supply amount detection means (K) A combine selection control device provided with a control means (100) for operating the gap adjusting actuator (M ₁ ) and the blow rate adjusting actuator (M ₂ ) based on detection information of the The control means (100) actuates the gap adjusting actuator (M ₁ ) with a delay time as the grain culm supply amount decreases, and delays the air flow rate adjusting actuator (M ₂ ). To operate without time or with a delay time smaller than the clearance adjustment delay time Sorting controller combine configured.