JPH0585130B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method in which a sorting device for sorting out a leakage treatment section from a handling chamber in a threshing device is provided in a sorting state that can be freely adjusted according to the throughput. , a vehicle speed detection means for detecting the traveling speed of the aircraft, and a 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 where the processing amount becomes smaller as the vehicle speed decreases. a first automatic adjustment means that automatically adjusts; and a second automatic adjustment means that automatically adjusts the sorting state of the selection device to a set target sorting state that is manually set.
an automatic adjustment means, a manually operated instruction means for instructing whether to operate the first automatic adjustment means or the second automatic adjustment means, and a manually operated instruction means for instructing whether to operate the first automatic adjustment means or the second automatic adjustment means, A switching means for selectively operating the first automatic adjustment means and the second automatic adjustment means is provided, and a manually operated control condition adjustment means for changing and adjusting the target selection state at the same vehicle speed is provided; The automatic adjustment means relates to a sorting control device for a combine harvester that is configured to automatically adjust the sorting state of the sorting device based on information from the control condition adjusting means.

[Conventional technology]

The above-mentioned sorting control device for this type of combine harvester is designed to control the sorting device according to the vehicle speed because the faster the combine harvester travels, the more grain culms are harvested, and the amount of material to be processed in the threshing device tends to increase. By automatically adjusting the sorting state, the sorting state is made to match the processing amount.

However, even if the vehicle speed is the same, the throughput of the threshing device may differ due to differences in grain culm grain deposition, etc. Therefore, a manually operated control is used to change and adjust the target sorting state at the same vehicle speed. Conditioning means are provided.

In addition, in order to maintain the sorting state of the sorting device at the target sorting state regardless of the vehicle speed, a second automatic adjustment means is provided, and the first automatic adjustment means automatically adjusts the sorting state according to the vehicle speed. , and a second automatic adjustment means for maintaining the sorting state of the sorting device at the target sorting state can be selectively activated by manually operated instruction means such as a changeover switch.

Conventionally, means for setting the target selection state of the second automatic adjustment means and control condition setting means for the first automatic adjustment means were provided separately.

[Problem that the invention seeks to solve]

In the above conventional configuration, the means for setting the target sorting state of the second automatic adjusting means and the control condition setting means for the first automatic adjusting means are provided separately, so that adjusting the sorting state is troublesome. There was a risk of making a mistake in operation.

Further, since the first automatic adjustment means and the second automatic adjustment means are configured to be selectively activated by manually operated instruction means, for example, when the first automatic adjustment means is in operation, In the case where the second automatic control means is accidentally switched to the operating state, the target selection state by the second automatic control means is
If the sorting state corresponds to a smaller throughput than the sorting state adjusted by the first automatic adjustment means, it may not be possible to cope with the throughput and problems such as clogging of the processed material may occur. However, there was some room for improvement.

The present invention has been made in view of the above-mentioned circumstances, and while it is possible to easily adjust the target selection state in each of the first automatic adjustment means and the second automatic adjustment means, the first automatic adjustment means The purpose is to prevent troubles such as clogging of the processing material from occurring even when switching between the automatic adjustment means and the second automatic adjustment means.

[Means for solving problems]

The characteristic configuration of the combine harvester sorting control device according to the present invention is as follows.

That is, the second automatic adjustment means is configured to determine, based on the information of the control condition setting means, the selection state automatically adjusted by the first automatic adjustment means when the vehicle speed is the highest as the set target selection state. It is in the point that it is.

[Effect]

The control condition setting means is used to adjust the sorting state in the first automatic adjusting means by determining the sorting state automatically adjusted by the first automatic adjusting means at the maximum vehicle speed as the target sorting state set by the second automatic adjusting means. While making it possible to set the set target sorting state in the second automatic control means, the set target sorting state is set to be the sorting state when the vehicle speed is the highest on the safe side corresponding to the state where the throughput is large. That's what I do.

〔Effect of the invention〕

Therefore, even if the first automatic adjustment means is switched to the second automatic adjustment means by mistake, the selection state will be automatically adjusted to the safe maximum vehicle speed corresponding to the situation where the processing amount is large, and the processing It is possible to avoid problems such as clogging of objects.

In addition, when switching from the second automatic adjustment means to the first automatic adjustment means, the sorting state is automatically controlled according to the vehicle speed, that is, the processing amount, so there is a risk of troubles such as clogging of the processing material. There is no such thing.

Moreover, since the sorting states of the first automatic adjusting means and the second automatic adjusting means can be adjusted simultaneously by one control condition setting means, only one of the sorting states of both automatic adjusting means can be adjusted and the other one can be adjusted simultaneously. The operability has been improved without any troubles such as forgetting to adjust the settings.

Therefore, the first automatic adjustment means and the second automatic adjustment means can be improved by making effective use of the originally provided means.
While improving the operability of adjusting the sorting state in each automatic adjustment means, it is possible to prevent troubles such as clogging of processed materials even if the switching operation between the first automatic adjustment means and the second automatic adjustment means is mistaken. I was able to do it.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in FIG. 4, a threshing device 2 is mounted on the upper part of a machine body V equipped with a crawler traveling device 1, and a reaping section 3 is attached to the front part of the machine body V,
Combine is configured.

The reaping section 3 includes a raising device 4, a cutting blade 5 that cuts the base of the grain culm, and a conveyance device 6 that transports the reaped grain culm to the rear of the machine.

In the figure, S ₀ represents the threshing by contacting the stock base of the harvested grain culm during the conveyance path of the conveyance device 6 that conveys the harvested grain culm from the reaping section 3 to the threshing device 2. This is a stock sensor S ₀ that detects the presence or absence of grain culm supply to the device 2 .

As shown in FIG. 5, the output of the engine E mounted on the machine body V is transmitted to the threshing device 2 via a belt tension type threshing clutch 7,
In addition, the traveling transmission 9 of the crawler traveling device 1 is connected to the crawler traveling device 1 via a belt tension type traveling clutch 8.
is transmitted to.

A portion of the output transmitted to the traveling transmission 9 is transmitted to a belt tension type reaping clutch 10.
The power is transmitted to the reaping section 3 via.

In the figure, S ₁ is a vehicle speed sensor serving as vehicle speed detecting means for detecting the traveling speed of the vehicle V based on the output rotation speed of the traveling transmission 9.

However, although not shown in the drawings, the forward/reverse switching of the vehicle V and the vehicle speed are manually adjusted by manually operating the traveling transmission 9.

As shown in FIG. 6, the threshing device 2 includes a handling chamber A that accommodates a handling barrel 11, a feed chain 12 that clamps and conveys grain culms in a sideways posture supplied from the reaping section 3, and a dust removal section. The present invention includes a cross-flow fan 13, a sorting device B consisting of a grain 14 and a swinging sorting plate 15, a first port 16 for collecting grains, and a second port 17 for collecting grains.

At the bottom of the handling room A, there is a receiving net 18 for grain sorting.
A discharge port 19 is provided at the end of the handling chamber A for discharging the processing material remaining in the handling chamber A.

However, in the following description, the treated material leaking through the receiving net 18 and the treated material discharged through the discharge port 19 will be collectively referred to as the leaking treated material from the handling chamber A.

The swinging sorting plate 15 includes a grain pan 20 located above the toumi 14, and a grain pan 20 thereof.
, a stroke rack 22 located following the chaf sheave 21 , an auxiliary grain pan 23 located below the starting end side of the chaf sheave 21 , and a grain sheave 24 located subsequent to the auxiliary grain pan 23 . , and they are a pair of left and right side plates 2.
It is installed between 5.

In addition, in FIG. 6, 26 is a grain pan for a discharge port disposed opposite to the discharge port 19, and 27 is a plurality of struts arranged in the horizontal direction and located following the grain pan 26. , the grain pan 26 and the sling material 27 are designed to be swung together with the oscillating sorting plate 15. Further, 28 is a rotary body with blades that acts on the processed material on the strainer material 27.

As shown in FIGS. 7 to 9, the chaff sieve 21 is composed of band plate-like members a and a' juxtaposed in the direction of transfer of the material to be processed. The space S formed between adjacent ones can be freely changed and adjusted.

To explain further, the upper end of one of the plurality of band plate members a, a', is fitted onto the fulcrum shaft 29 passing through the pair of left and right side plates 25, and the band At each of the lower end sides of the plate member a′,
A connecting pin 30 passing through a long hole b formed in the side plate 25 is fixedly attached.

A pair of left and right links 31 are provided that are externally fitted onto each of the fulcrum shaft 29 and the connection pin 30,
The operating arm 3 is attached to one of the left and right pairs of links 31.
2 is installed.

The other band plate members a except for the one band plate member a' are attached to the side plate 25 using U-shaped mounting brackets 33.

That is, in the U-shaped mounting bracket 33, the upper end shaft portion 33a is fixed to the side plate 25 through penetration, and the lower end shaft portion 33b is fixed to the side plate 25.
It is configured to penetrate through a long hole b formed in the. The lower end portions of the other strip member a are externally fitted onto the lower shaft portion 33b of the mounting fitting 33.

The connecting pin 30 and the shaft portions 33b on the lower end side of the plurality of mounting brackets 33 are connected by a linking plate 34, and each strip member a, a' is supported by using their upper end side as a fulcrum. By integrally rocking, the distance S is changed and adjusted.

An electric motor _M1 for chaff adjustment for changing and adjusting the spacing S is provided on the fixed frame side of the threshing device 2, and a spring 35 biasing toward the closing side where the spacing S becomes small is The operating arm 32 is connected to the operating arm 32, and a piece member 37 that engages with a screw shaft 36 which is driven in forward and reverse directions by the electric motor _M1 is interlocked and connected by a release wire 38.

In FIG. 7, S ₂ is a chaff opening detection potentiometer that detects the adjusted state of the distance S as a change in the position of the top member 37, and the free end of the operating lever 39 is connected to the It is connected to the frame member 37.

Further, 40a and 40b are switches which are pressed and operated by the operation lever 39 when the distance S reaches an adjustment limit, and are provided to automatically stop the electric motor _M1 .

The rotor 14 is configured so that the number of revolutions thereof can be changed to change and adjust the amount of air to be selected.

To explain further, as shown in FIG. 10 and FIG.
1a and 41b, and is configured as a so-called split pulley type transmission 42 that changes and adjusts the rotation speed of the wheel 14 by changing and adjusting the interval between the left and right pair of pulley portions 41a and 41b.

In FIG. 10, 43 is a transmission pulley that transmits the output of the engine E to the input pulley 41;
is a tension pulley.

One 41a of the pair of left and right pulley parts 41a, 41b is fixed to the rotating shaft 14A, and the other 41b is fitted onto the outside of the rotating shaft 14A so as to be slidable in the axial direction.

However, the other sliding side pulley portion 41b
is connected to one fixed side pulley portion 41a by an attached connecting pin 45, and both pulley portions 41a
a and 41b rotate together, and the interval between them can be changed and adjusted.

To explain the configuration for changing and adjusting the interval between the pulley portions 41a and 41b, the first cam forming member 47 is attached to the boss portion of the sliding pulley portion 41b using a bearing 46, and the threshing device As the first cam forming member 47 rotates, both the pulley portions 41 and the second cam forming member 48 attached to the fixed frame side of the
Cam protrusion 47 for moving a and 41b far and near
a, 48a are formed (see FIG. 12).

An electric motor M ₂ for adjusting the air volume is attached to the fixed frame side of the threshing device 2, and an operating arm 49 for speed change operation is attached to the first cam forming member 47, and the operating arm 49 and the electric motor
A piece member 51 that engages with a screw shaft 50 that is driven in forward and reverse directions at _M2 is interlocked with a release wire 52, and is connected to the electric motor for adjusting the air volume.
The first cam forming member 47 is rotated at _M2 to change and adjust the rotational speed of the gear 14.

In FIG. 10, S ₃ is a potentiometer for detecting air flow rate that detects the speed change state, that is, the selected air flow rate as a change in the position of the top member 52, and the free end of the operating lever 53 is connected to the top member 52. 52.

Further, 54a and 54b are switches which are pressed and operated by the operation lever 53 when the top member 52 reaches the speed change limit, and are provided to automatically stop the electric motor _M2 .

Further, in FIG. 11, S ₄ is a wheel rotation speed sensor that detects the rotation speed of the wheel 14.

By adjusting the spacing S between the chaff sheaves 21 and adjusting the flow rate of the sorting air by the dust 14 to be strong or weak, the sorting device B
This means that the sorting state can be freely adjusted depending on the amount of processing.

Next, a control configuration for controlling the sorting state of the sorting device B by operating the electric motor _M1 for adjusting the interval of the chaff sheave 21 and the electric motor _M2 for adjusting the sorting air volume of the sheave 14 will be explained. do.

As shown in FIG. 1, a control device 55 using a microcomputer is provided, and the control device 55
Then, the first automatic adjustment means 100, which automatically adjusts the sorting state according to the vehicle speed, is operated, or the second automatic adjustment means 101, which automatically adjusts the sorting state to a manually set sorting state.
A threshing auto switch S ₅ as a manually operated instruction means for instructing whether to operate the threshing automatic switch S 5 detects whether or not the traveling transmission 9 is operated in the backward direction to determine whether or not the aircraft V is in the backward state. The back switch S ₆ to detect, the stock sensor S ₀ , the engine rotation speed sensor S ₇ to detect the rotation speed of the engine E, the vehicle speed sensor S ₁ , the wheel rotation speed sensor S ₄ , the chaff opening detection potentiometer Yometer S ₂ , the potentiometer S ₃ for detecting the air flow rate, a potentiometer S ₈ for adjusting the chaff opening degree to increase or decrease the chaff opening degree at the same vehicle speed, and a potentiometer S 8 for adjusting the chaff opening degree to be strong or weak at the same vehicle speed. Each of the potentiometers _S9 for adjusting the air flow is connected.

Then, the control device 55 controls both the electric motors M ₁ and M ₂ based on preset and stored information and various input information, and controls the sorting device B.
The screen is configured to automatically adjust the sorting state of the screen.

However, when the threshing auto switch S ₅ is operated to the OFF state, the chaff sheave 21 is adjusted using the chaff opening adjustment potentiometer S ₈ and the threshing air volume adjustment potentiometer S ₉ .
The opening degree and the amount of airflow can be manually adjusted.

That is, a first automatic adjustment means 100 that automatically adjusts the sorting state of the sorting device B according to the vehicle speed by using the control device 55, and a second automatic adjustment means that automatically adjusts the sorting state of the sorting device B to a set target sorting state that is manually set. 10
1, and the first automatic adjustment means 100 and the second automatic adjustment means 101 based on the instruction information of the automatic threshing switch _S5 as a manually operated instruction means.
The switching means 102 for selectively operating the .

To explain the adjustment of the sorting state of the sorting device B, as shown in FIG. As the amount of grain increases, the amount of processing increases, and the vehicle speed corresponds to the amount of processing in the threshing device 2. Therefore, based on the detection information of the vehicle speed sensor _S1 , the amount of processing increases as the vehicle speed increases. Control is performed so that the sorting state corresponding to , that is, the opening degree of the chaff sheave 21 becomes large, and the amount of air sorted by the windshield 14 becomes large.

However, even at the same vehicle speed, the actual throughput may differ due to differences in grain culm grain deposition, etc. Therefore, the chaff opening degree and screening air volume can be adjusted to larger or smaller values at the same vehicle speed. , the chaff opening adjustment potentiometer S ₈ , and the rear air volume adjustment potentiometer S ₉ respectively, the chaff opening and the sorting air volume corresponding to the sorting state at the maximum vehicle speed are adjusted. In addition to setting the sorting condition at the set maximum vehicle speed, the standard sorting condition is corrected according to the vehicle speed, so that the actual sorting condition corresponds to the throughput. (See Figure 3 B and C).

That is, the potentiometer S ₈ for adjusting the chaff opening degree and the potentiometer S ₉ for adjusting the air flow rate correspond to manually operated control condition adjusting means for changing and adjusting the target sorting state at the same vehicle speed. I will do it.

Incidentally, during non-reaping operations such as turning when the stock origin sensor S ₀ is in the OFF state, and when the machine is moving backwards, the set sorting state is maintained regardless of the vehicle speed.

Next, the operation of the control device 55 will be described in detail based on the flowchart shown in FIG.

When the control is started, it is first determined whether the threshing auto switch _S5 is ON or OFF, and if the threshing auto switch _S5 is ON, the chaff opening degree and the threshing The current values detected by the chaff opening detection potentiometer S ₂ and the exhaust air volume detection potentiometer S ₃ are subtracted from each control target value of the air volume to calculate the exhaust deviation and the chaff deviation. seek each husband.

However, the respective control target values for the chaff opening degree and the airflow rate are adjusted by the chaff opening adjustment potentiometer _S8 and the exhaust airflow adjustment potentiometer _S9 , respectively, as will be described in detail later. The adjustment value at the maximum vehicle speed will be corrected and used according to the vehicle speed, but at the time of control activation, it will be set to a preset standard value.

On the other hand, when the threshing auto switch _S5 is OFF, the chaf opening degree and the threshing air volume are adjusted to the chaff opening degree adjusting potentiometer _S8 and the threshing air volume adjusting potentiometer _S9 , respectively. Therefore, the current value is subtracted from the set adjustment value so that the set adjustment value is maintained, and the values are obtained as the toe deviation and the chuff deviation.

Then, it is determined whether or not the rotation speed of the rotation speed of the rotation speed sensor S ₄ is higher than the set rotation speed (500 rpm), thereby determining whether the rotation speed of the rotation speed of the rotation speed sensor S 4 is higher than the set rotation speed (500 rpm). .

When the rotational speed of the towing 14 is higher than the set rotational speed, the rotational speed corresponding to whether it is within the set dead zone or the processing amount is small is selected based on the sign and magnitude of the towing deviation. It is determined whether the wind is on the weak side, which weakens the wind, or whether it is on the strong side, which corresponds to a large throughput. If the deviation is on the weak side, it is determined that the rotation speed is A strong output process is performed to control the electric motor M ₂ for adjusting the sorted air on the side where the selected airflow is to be increased, and when it is on the strong side, a weak output process is performed to reduce the rotational speed.
If it is within the dead zone, the electric motor _M2 for adjusting the sorting air is stopped to maintain the current sorting state.

Next, it is determined whether the chaff deviation is on the closed side corresponding to a small processing amount, the open side corresponding to a large processing amount, or within the set dead zone, and if it is on the closed side, , the spacing S of the chaff sheave 21
The electric motor for adjusting the chaff opening to widen the
The opening force that activates _M1 is processed, and if it is on the open side, the closing output is processed, and if it is within the dead zone, it is stopped and the current sorting state is maintained.

In addition, when the rotation speed of the threshing machine 14 is below the set rotation speed, the threshing air volume is not adjusted, and when the rotation speed of the threshing machine 14 is below the set rotation speed, the threshing auto switch S ₅ is turned OFF. In some cases, the chaff opening degree can be changed and adjusted.

In other words, since the threshing air volume is adjusted by changing the rotational speed of the threshing machine 14 using the split pulley type transmission 42 as described above, the threshing device 2 is not in operation. In this case, since it is not possible to adjust the amount of airflow at the steering wheel, the airflow rate at the steering wheel is not adjusted when the number of rotations of the steering wheel 14 is lower than the set rotational speed.

However, when the threshing device 2 is in operation, the chaff sheave 21 is swung together with the sorting device B, so it is not possible to check its opening degree. Even when the operation of the thresher 2 is stopped, the chaff opening adjustment potentiometer S ₂
By making it possible to change and adjust the chaff opening degree, the adjusted state of the chaff opening degree can be easily inspected.

After adjusting each of the above-mentioned air flow rate and chaff opening degree, in order to control the sorting state every set time (500ms), check the timing when the set time (500ms) has elapsed. , it is determined whether or not the back switch _S6 is in the ON state.

When the back switch _S6 is in the OFF state, it is determined whether the stock price sensor _S0 is in the ON state.

If the back switch _S6 is OFF and the stock sensor _S0 is ON, it is determined that the reaping work is being performed, and the state has changed from the OFF state to the ON state for the first time. By determining whether or not the reaping operation has started, it is determined whether the reaping operation has started or whether the reaping operation is being continued.

In addition, when the above-mentioned back switch _S6 is ON,
Further, the processing when the back switch _S6 is OFF and the stock stock sensor _S0 is OFF will be described later.

When the stock sensor S ₀ turns ON for the first time,
When it is determined that work has started, the current engine speed detected by the engine speed sensor _S7 is set as the reference engine speed, and if this is not the first time the engine is turned on, the reference engine speed is higher than the current engine speed. If the reference rotation speed is not higher than the current rotation speed, that is, if 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 determined as a rotation speed down value, and it is determined whether or not the rotation speed down value is equal to or higher than a set rotation speed (200 rpm). Determine whether the state is in an overload state.

The above rotation speed down value is the set rotation speed (200rpm)
If it is less than 1, it is determined that there is no overload condition, and as described above, the vehicle speed sensor S ₁ Based on the detection information of
Determine each of the steering correction value for correcting the turning airflow to the weak side and the chaff correction value for correcting the chaff opening to the closing side according to the vehicle speed (third step
(See figures b and c).

However, the rotation speed down value is the set rotation speed (200 rpm)
In this case, by setting both the toe correction value and the chaff correction value to zero, and controlling the sorting state of the sorting device B to the set sorting state at the maximum vehicle speed corresponding to the maximum throughput. , threshing device 2
By discharging the processed material quickly, the overload condition can be quickly resolved.

After determining each of the threshing correction value and the chafing correction value, the _first set time (t ₁ = 5 seconds) or more, and if it is less than the first set time, the target value of the air flow rate is set to the first set value T ₁ corresponding to a state where the throughput is small. If the time is longer than the first set time, a value obtained by subtracting the airflow correction value from the adjustment value set by the airflow adjustment potentiometer _S3 is set as the airflow target value.

Similarly, if the ON time of the stock sensor S ₀ is less than the second set time (t ₁₁ = 5 seconds),
The chaff target value, which is the control target value of the chaff opening degree, is set to a second set value C ₁ corresponding to a state where the throughput is small.
If the time is longer than the second set time, the chaff correction value is subtracted from the adjustment value by the chaff opening adjustment potentiometer _S2 , and the control loop in the sorting state completes one cycle. I will do it.

In other words, each time the control loop goes around, the correction value set corresponding to the load condition of the engine E and the vehicle speed, and the target value set according to the ON time of the stock sensor S ₀ are adjusted. The chaff opening degree and the wind volume are automatically adjusted according to the vehicle speed so that the current value is within the set dead zone.

In addition, when the threshing auto switch _S5 is ON, the chaff opening adjustment potentiometer _S8
The adjustment values for the selection state at the maximum vehicle speed set by the air flow adjustment potentiometer S ₉ and the air flow adjustment potentiometer S 9 are corrected according to the vehicle speed, and the corrected target value and current value are The first automatic adjustment means 10 automatically adjusts the chaff opening degree and the air flow rate so that the deviation is within the set dead zone.
0, the threshing auto switch _S5 is OFF.
At the time of , the deviation between the current value and the adjustment value set by the chaff opening adjustment potentiometer S ₈ and the air flow adjustment potentiometer S ₉ as the selection state at the maximum vehicle speed is determined. The process of automatically adjusting the chaff opening degree and the threshing air volume so that they are within the set dead zone corresponds to the second automatic adjustment means 101, and the threshing auto switch _S5
Based on whether it is ON or OFF, the chaff deviation and the exhaust deviation are determined from the control target value that is automatically adjusted according to the vehicle speed, or the chaff opening adjustment potentiometer _S8 and the exhaust air volume adjustment are determined. The process of switching whether to obtain the value from the adjustment value by the potentiometer S ₉ is a switching process in which the first automatic adjustment means 100 and the second automatic adjustment means 101 are selectively activated based on instruction information from a manually operated instruction means. This corresponds to the means 102.

To explain the control when the back switch S ₆ is ON, and when the back switch S ₆ is OFF and the stock sensor S ₀ is OFF, non-reaping work such as when the aircraft is retreating or turning. Sometimes, the throughput of the threshing device 2 decreases regardless of the vehicle speed, so the target values of the chaff opening degree and the threshing air volume are set by the stock sensor S so that the sorting state corresponds to the small throughput. The current adjustment state is maintained until the set time elapses after ₀ is turned OFF, and as the set time elapses after 0 is turned OFF, the preset processing amount changes to the setting value corresponding to the small state. I am trying to maintain it.

That is, if the time elapsed since the stock sensor S ₀ turned OFF is less than the third set time (t ₂ = 5 seconds), the control of the air flow rate is stopped and the current adjustment state is maintained. , when the time is longer than the third set time, the target value is set to a third set value T ₂ that is preset corresponding to a state where the processing amount is small.

Similarly, if the time elapsed since the stock sensor S ₀ turned OFF is less than the fourth set time t ₁₂ , the control of the chaff opening degree is stopped to maintain the current adjustment state, and the If the time is longer than the fourth set time, the chaff target value is set to a fourth target value C ₂ that is preset corresponding to a state where the throughput is small.

Note that the aircraft is in the backward state and the stock sensor S ₀ is
When in the ON state, the stock stock sensor S ₀
Since this is the same state as when the elapsed time since turning off is less than the set time, the sorting state immediately before switching to reverse is maintained.

To explain, when reaping work is carried out at the edge of a ridge, etc., the harvesting work is performed while repeatedly moving back and forth against the grain culm rows in the field, but when the machine is moving backwards, the grain culm reaping work is performed. Even though the grain culm is not present, the grain culm that has been cut during the forward movement is on the conveyance route to the threshing device 2, and the stock origin sensor is detected.
S ₀ may not turn off, and even though the amount of processing is decreasing, the sorting state is controlled according to the vehicle speed, making it impossible to maintain an appropriate sorting state that corresponds to the small amount of processing. There is a risk.

Since the switch from forward to reverse is operated by switching from forward to reverse after decelerating and stopping, when switching to the reverse state, the sorting state corresponding to a slow vehicle speed, that is, the state corresponding to a state with a small throughput, is performed. By stopping the control of the sorting state and maintaining the current sorting state, it is possible to automatically maintain the sorting state corresponding to a small processing amount.

Furthermore, even during normal forward movement, even after the reaping work is completed and the stock source sensor S ₀ is turned off, the processed material remains in the threshing device 2 for a while. The current sorting state is maintained until the number decreases.

[Another example]

In the above embodiment, the vehicle speed sensor S ₁ is configured to detect the vehicle speed based on the speed change output rotation speed of the driving transmission 9, but the vehicle speed is indirectly detected based on the operating state of the transmission. may be detected, and the specific configuration of the vehicle speed detection means can be modified in various ways.

Further, in the above embodiment, the sorting state of the sorting device B is determined by the sorting air volume by the head 14 and the chaff sheave 2.
Although a case has been exemplified in which both the opening degree and the first opening degree are controlled and adjusted, it is also possible to control only one of them.

Further, in the above embodiment, a case has been exemplified in which the split pulley type transmission 42 is used to change the rotation speed of the head 14 to adjust the screening air volume. The sorting state of the sorting device B may be adjusted by a specific configuration for adjusting the sorting air volume, a specific configuration for adjusting the opening degree of the chaff sheave 21, etc. The specific configuration for doing so can be modified in various ways.

Further, in the above embodiment, in order to automatically adjust the sorting state of the sorting device B according to the vehicle speed, the potentiometers S ₈ and S ₉ adjust the control target value at the maximum vehicle speed as the control condition, and In the above example, the control target value at the maximum vehicle speed is corrected according to the vehicle speed so that the lower the vehicle speed is, the smaller the value becomes. A plurality of combinations of combinations may be stored as control condition parameters, and the sorting states of the plurality of sets may be selected by a switch, etc., and manual operation to change and adjust the target sorting state at the same vehicle speed is possible. The specific configuration of the control condition adjustment means in the equation can be modified in various ways.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the combine harvester sorting control device according to the present invention, FIG. 1 is a block diagram of the control configuration, FIG. 2 is a flowchart of control operation, and FIG. 3A shows the relationship between vehicle speed and sorting state. An explanatory diagram, B is an explanatory diagram showing the relationship between the correction value of the screening air volume and the vehicle speed,
Figure C is an explanatory diagram showing the relationship between the chaff opening correction value and vehicle speed, Figure 4 is a schematic side view of the combine harvester, and Figure 5 is a schematic side view of the combine harvester.
The figure is a transmission system diagram, Figure 6 is a cutaway side view of the threshing device, Figure 7 is a cutaway side view showing the structure of the chaff sheave, Figure 8 is an enlarged side view of its main parts, and Figure 9 is a strip-shaped Developed plan view showing the mounting structure of the members, 1st
Figure 0 is a side view of the main parts showing Toumi's transmission structure, Part 1
FIG. 1 is a cutaway front view of the input pulley section, and FIG. 12 is a developed plan view of the cam forming member. 2...Thresching device, A...handling room, B...sorting device, V...body, _S1 ...vehicle speed detection means, _S5 ...manually operated indicating means, _S8 , _S9 ...control Condition adjustment means, 100...first automatic adjustment means, 101...second automatic adjustment means, 102...switching means.

Claims (1)

[Claims] 1 A sorting device B for sorting out the leaked waste from the handling room A in the threshing device 2 is provided in a freely adjustable sorting state according to the processing amount, and a vehicle speed detection means S ₁ for detecting the traveling speed of the machine body V. and a first system that automatically adjusts the sorting state of the sorting device B based on the detection information of the vehicle speed detecting means _S1 so that the sorting state corresponds to a state where the throughput becomes smaller as the vehicle speed decreases.
An automatic adjustment means 100 and a second automatic adjustment means 101 for automatically adjusting the sorting state of the selection device B to a manually set set target sorting state are provided, and the first automatic adjustment means 100 is operated. , a manually operated instruction means S ₅ for instructing whether to operate the second automatic adjustment means 101, and the first automatic adjustment means 100 and the second automatic adjustment means based on the instruction information of the instruction means S ₅ . 101, and manually operated control condition adjusting means _S8 , _S9 for changing and adjusting the target selection state at the same vehicle speed. , the control condition adjusting means
Based on the information of S ₈ and S ₉ , the sorting device B
A sorting control device for a combine harvester configured to automatically adjust the sorting state of the combine harvester, wherein the second automatic adjustment means 101 includes the control condition setting means S ₈ ,
A sorting control device for a combine harvester, which is configured to determine, based on the information of _S9 , a sorting state automatically adjusted by the first automatic adjustment means 100 at the time of maximum vehicle speed as the set target sorting state.