JPH07327475A - Threshing sorting control unit - Google Patents

Abstract

PURPOSE:To provide a threshing sorting control unit so designed that, when the dropping state of a treated product at a swinging sorting plate is brought to a dropping shortage, this shortage is properly dissolved,thereby preventing unfavorable states such as increase in third loss. CONSTITUTION:For increasing the dropping divergence for a treated product at the swinging sorting plate of a sorting device as the dropping amount of the treated product from a threshing chamber detected by a relevant detective means S5a increases, a control means H for a dropping divergence altering means M1 actuates a tilt angle altering means M3 to increase the tilt angle of the swinging sorting plate for raising the ability to feed the treated product when a dropping shortage for the treated product at the swinging sorting plate is detected by a dropping state detective means S5b; in case the dropping shortage state cannot be dissolved even by the increase in the tilt angle of the swinging sorting plate in such shortage state, a revolution altering means 100 is actuated to increase the swinging revolution of the swinging sorting plate; or, in case of dropping shortage in such a mode that the means M1 is operated to the position of the upper limit divergence, both the increase in the above-mentioned tilt angle and the raising of the aforementioned swinging revolution are conducted simultaneously.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is based on the information of a processed material amount detecting means for detecting the amount of processed material leaked from a handling room. The present invention relates to a threshing selection control device provided with control means for changing and operating the leakage opening changing means so that the leakage opening becomes large.

[0002]

2. Description of the Related Art In the above threshing sorting control device, in a threshing sorting device such as a combine, a layer thickness sensor or the like for detecting the layer thickness of the processed material leaked from the handling chamber onto the swing sorting plate of the sorting device is processed. It is used as a physical quantity detection means, and based on the detection information, the leakage opening of the processed material in the rocking sorting plate (for example, the opening degree of the chaff sheave) is increased as the detected layer thickness, that is, the amount of the leakage processed material is increased. The operation control of the leakage opening changing means (motor for changing the opening of the chaff sheave, etc.) has been conventionally performed. In other words, the leak opening is increased as the amount of leaked material increases, while the leak opening is decreased as the amount of leaked material decreases, so that the amount of waste (layer thickness) on the rocking sorting plate is reduced. The proper range is maintained, and the proper sorting operation is performed in the sorting device.

[0003]

However, there is a case where the leakage state of the processed material on the swing selection plate varies due to, for example, the wetness of the processed material. When the leakage state changes to an insufficient state, the amount of processed material on the rocking sorting plate gradually increases and exceeds the appropriate range, and the rocking sorting plate is not leaked and is discharged to the outside of the machine. There was a risk that defects such as damage to the grain due to an increase in No. 3 loss and an excessive increase in No. 2 reduction amount might occur.

That is, the above-described control of changing the leakage opening is useful when the leakage of the processed material on the swing selection plate is properly performed, but it is effective when the processed material is wet. In the case of (1), the processed material adheres to the swing selection position and leakage does not occur properly, which may cause the above-mentioned inconvenience. Furthermore, if the rocking sorting plate is provided with a chaff sheave as an example, the chaff sheave will leak the processed material from between the adjacent plate-shaped members constituting the chaff sheave, When the processed product is wet, for example, the grain adheres to the plate-like member and blocks the space between the adjacent plate-like members, and as a result, the above-mentioned problems may occur. there were.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a shortage of leakage when a leakage state of a processed material in a swing selection plate becomes a shortage of leakage. The purpose is to appropriately eliminate the state so that the above-mentioned inconvenience does not occur.

[0006]

The threshing selection control device of the present invention is based on the information of the processed product amount detecting means for detecting the amount of the processed product leaked from the handling room, and the larger the amount of the processed product leaked, A control means for changing and operating the leakage opening degree changing means is provided so that the leakage opening degree of the processed material on the rocking sorting plate is increased, and the first characteristic configuration thereof is the rocking. Leakage state detecting means for detecting the leakage state of the processed material on the sorting plate and inclination angle changing means for changing the inclination angle of the rocking sorting plate are provided, and the control means is the leakage state detecting means. Based on the information of the above, when the leakage state of the processed material in the swing selection plate is insufficient, the inclination is increased so that the inclination angle of the swing selection plate is increased in order to enhance the ability to feed the processed material. Point configured to activate the angle changing means A.

A second characteristic structure is the same as the first characteristic structure, further comprising a rotation speed changing means for changing the rocking rotation speed of the rocking sorting plate, and the control means is arranged to enhance the throughput of the processed material. If the insufficient leakage state cannot be resolved by increasing the inclination angle of the swing selection plate in the leakage shortage state, the rotation speed is changed so that the swing rotation speed of the oscillation selection plate increases. It is configured to activate the means.

A third characteristic structure is the same as the first characteristic structure, further comprising rotation speed changing means for changing the rocking rotation speed of the rocking sorting plate, and the control means is the leakage opening changing means. Is operated up to the upper limit opening position of the opening change range, and if the leakage state of the processed material on the swing selection plate is insufficient leakage, The tilt angle changing means is operated to increase the tilt angle of the dynamic sorting plate, and the rotation speed changing means is operated to increase the swing rotation speed of the swing sorting plate. There is a point.

[0009]

According to the first characteristic configuration of the present invention, when the control is performed such that the leakage opening degree of the processed matter in the rocking sorting plate is increased as the amount of the treated matter leaked from the handling chamber increases, When the leakage state of the processed material in the dynamic sorting plate is detected, the tilt angle of the swing sorting plate is controlled to be large. Due to the increase of the inclination angle of the rocking / sorting plate, the ability of the rocking / sorting plate to feed the processed material at the time of rocking is increased, and the leakage action on the processed material is accelerated.

When the rocking sorting plate is provided with a chaff sheave as an example, the rocking sorting plate is swing-sorted even if, for example, a wet grain adheres to the plate-shaped member forming the chaff sheave. The increased processing feed capability of the plate allows the grain to be fed as desired against adhesive forces, resulting in grain blockage between adjacent plate members in the chaff sheave. It is possible to solve the problem and cause the leakage of the processed material. In short, when the processed product is wet, and if the processed product feeding capacity is increased more than necessary, the processed product feeding capacity becomes too strong, and the selection efficiency is lowered.
In the first characteristic configuration, when leakage is insufficient due to wetness of the processed material, the feeding capability of the rocking sorting plate is increased to remove the adhering grains and the like. By sending the processed material against adhesion, clogging of the rocking sorting plate is eliminated,
It solves the leak shortage.

According to the second characteristic construction, in the first characteristic construction, when the insufficient leakage state is not eliminated even if the inclination angle of the swing selection plate is increased, the swing selection plate is not eliminated. Is controlled so that the swinging rotation speed of is increased. here,
In addition to the increase in the feed capacity by changing the tilt angle of the swing selection plate when swinging, the increase in the swing rotation speed of the swing selection plate increases the feed capability of the processed product, resulting in a leakage effect on the processed product. Further promoted.

Further, according to the third characteristic configuration, in the state of the first characteristic configuration, the leakage opening of the processed material in the swing selection plate is changed to the upper limit opening of the opening change range. When the leakage shortage state of the processed material on the rocking / sorting plate is detected, the tilt angle of the rocking / sorting plate and the rocking rotation speed are increased at the same time. The feeding capacity is sufficiently increased, and the leakage action on the processed material is rapidly accelerated.

[0013]

According to the first characteristic configuration of the present invention, conventionally, only change control of the leakage opening degree of the processed matter in the rocking sorting plate is performed in accordance with increase / decrease in the amount of leakage processed matter from the handling chamber. In the technology, the leaked state of the processed matter on the rocking sorting plate is insufficient due to the fact that the amount of the leaked processed matter does not change and the condition such as the wetness of the processed matter changes from the standard to a higher humidity state. In this case, the leakage opening is kept constant, and as a result, the amount of processed material on the rocking sorting plate gradually increases and exceeds the appropriate range. While there is a possibility that problems such as damage to the grain caused by an increase in the No. 3 loss released to the
In the present invention, when an insufficient leakage state of the processed material in the swing selection plate occurs, the leakage action on the processed material is promoted by increasing the inclination angle of the swing selection plate, and the insufficient leakage state is appropriately eliminated. As a result, good threshing selection control can be realized while complementing the conventional adjustment control of the leakage opening in the swing selection plate.

Further, according to the second characteristic configuration, in the case where the insufficient leakage state is not eliminated even if the inclination angle of the oscillation sorting plate is increased in the leakage leakage state of the processed material in the oscillation sorting plate. In addition, the oscillating rotation speed of the oscillating selection plate is further increased, the leakage action on the processed material is further promoted, and the insufficient leakage state is appropriately eliminated. Therefore, according to the first characteristic configuration described above. Suitable means for achieving the effect are obtained.

Further, according to the third characteristic configuration, the leakage opening in the swing selection plate is changed to the maximum opening in the opening change range, and the leakage action cannot be increased by changing the opening. Therefore, when the leakage of the processed material in the rocking sorting plate is insufficient, the tilt angle of the rocking sorting plate and the rocking speed of the rocking sorting plate are increased at the same time, so that the leakage action on the processed material is rapidly accelerated. As a result, the leakage shortage state is appropriately eliminated, and thus suitable means for realizing the effect of the first characteristic configuration can be obtained.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments in which the present invention is applied to a combine threshing apparatus will be described below with reference to the drawings. The self-removing combine shown in FIG. 2 includes a pair of left and right crawler traveling devices 1, a threshing device 2, a control unit 3, a mowing device 4, and the like. The cutting device 4 includes a weeding tool 5, a raising device 6, and a cutting blade 7, and the cut grain culm is conveyed by the conveying device 9 to the threshing device 2.

The power transmission system is constructed as shown in FIG. The power of the engine E is transmitted to the threshing device 2 via the threshing clutch 10 and is transmitted to the mission 13 of the crawler traveling device 1 via the traveling clutch 11 and the hydraulic continuously variable transmission 12. Power is transmitted from the mission 13 to the mowing device 4 via the mowing clutch 14. Also, in order to detect whether the threshing device 2 is operating,
Threshing switch S for detecting the on / off state of the threshing clutch 10.
W1 is provided.

The threshing device 2, as shown in FIG.
5, a handling chamber A for storing 5, a feed chain 16 for feeding and transporting the grain culm supplied from the reaping device 4 to the handling chamber A, a cross-flow fan 17 for dust removal, and a sorting device for sorting processed products after threshing Equipped with B. The sorting device B includes a tomi 18, a swing sorting plate 19, a first product collecting section (hereinafter referred to as the first mouth) 20 and a second product collecting section (hereinafter referred to as the second mouth) for collecting processed products after sorting. 21).

As shown in FIG. 5, a mechanism is provided on the upper part of the feed chain 16 so as to press the conveyed grain culms downward and sandwich it with the feed chain 16. That is, the plurality of pressing members 16a and 16b connected in the transport direction by the pivot P are elastically biased by the coil spring 16c. A potentiometer S1 for detecting the upward displacement of the pivot shaft P between the first pressing member 16a and the second pressing member 16b from the front is provided. The potentiometer (hereinafter referred to as a culm thickness sensor) S1 detects the thickness of the grain culm sandwiched between the feed chain 16 and the pressing members 16a and 16b, and the feed speed of the feed chain 16 is kept substantially constant. Therefore, the detection value of the culm thickness sensor S1 is proportional to the amount of grain culm supplied to the handling room A.

The grain culm supplied and conveyed to the handling chamber A by the feed chain 16 is threshed by the rotation of the handling barrel 15. In the lower part of the handling room A, a receiving net 22 is provided, and grains of the processed product after threshing that have been made into single grains leak from the receiving net 22 to the rocking sorting plate 19. The processed material that could not leak from the receiving net 22 is the receiving net 22.
It falls from the rear end portion to the swing selection plate 19.

The swing selection plate 19 comprises a Glen pan 23 located above the tomi 18, a chaff sheave 24 located behind it, a Glen sheave 25 located below it, and the like. The 1st mouth 20 and the 2nd mouth 21 are each equipped with a screw conveyor, and the grain leaked from the grain sieve 25 is collected from the 1st mouth 20 and stored in a tank or the like. The mixture of the grain and the straw waste that has fallen from the rear end of the chaff sheave 24 or the rear end of the Glen sieve 25 is recovered from the No. 21 opening and returned to the swing selection plate 19.

The chaff sheave 24, as shown in FIG.
A plurality of plate-shaped members 24a are arranged side by side in the front-rear direction at predetermined intervals. Each plate-shaped member 24a is pivotally attached to the left and right side plates so as to be rotatable about the left-right axis, and the lower end portion thereof is a link 24b.
It is pivotally connected at. Therefore, when the link 24b is operated to move in the front-rear direction, the plate-shaped members 24a simultaneously rotate, and the adjacent distance t between the plate-shaped members 24a changes. This interval t corresponds to the leakage opening of the processed material in the swing selection plate 19 (hereinafter referred to as chaff opening).

The chaff opening is adjusted by changing the rotation direction of the sheave motor M1 as the leakage opening changing means to the forward or reverse direction. The forward / reverse rotation of the sheave motor M1 is converted into a forward / backward movement of the link 25 by the gear type linkage mechanism 26, the swing arm 27, and the wire 28,
The chaff opening is changed as described above. The swing arm 2
A potentiometer-type chaff opening sensor S2 for detecting the chaff opening from the rotation angle of 7 is provided.

The toumi 18 is for generating a sorting wind for blowing off the straw waste on the swing sorting plate 19, and the wind force is changed by changing the opening of the toumi case cover 18a as shown in FIG. Done. That is, as the opening degree increases, the amount of air escaping from the opening increases, and the wind force exerted on the processed material on the swing selection plate 19 (hereinafter, referred to as toumi wind force) decreases.

Tomi wind force is adjusted as shown in FIG.
This is performed by the toumi motor M2. Toumi Motor M2
Is a linkage mechanism 30, a swing arm 31, and links 32, 33.
The toumi case cover 18a is opened and closed via.
A potentiometer-type Tumi wind sensor S3 for detecting the Tumi wind from the rotation angle of the swing arm 31 is provided.

Further, as shown in FIGS. 4 and 8, two layer thickness sensors S5a and S5b respectively swing to detect the layer thickness of the leaked material (grain etc.) on the chaff sheave 24. It is attached to rods 40 installed on the upper sides of the left and right side plates of the selection plate 19, and is arranged on the front side and the rear side of the chaff sheave 24. The layer thickness sensors S5a and S5b are plate-shaped members T1 and T2 that are oscillatedly suspended around the horizontal axis.
And a potentiometer PM for converting the rotation angle of the plate-shaped members T1 and T2 to the rear (the conveying direction of the processed object) into a resistance value. When the layer thickness of the processed material is small, the plate member T
1 is in contact with the object to be processed and is rotated rearward, and when the layer thickness is increased, the plate member T2 is in contact with the object to be rotated rearward.

With the above construction, as the amount of the processed material increases and the layer thickness increases, the rotation angles of the sensor bars T1 and T2 increase. Therefore, the layer thickness of the processed material, that is, the processed material amount is detected from the resistance value of the potentiometer PM. can do. The first layer thickness sensor S5a on the front side is provided below the receiving net 22 so as to detect the layer thickness of the processed material leaking from the receiving net 22, and the first layer thickness sensor S5a. In the above, processing amount detection means for detecting the amount of leakage processing substances from the handling room A is configured. Further, the second layer thickness sensor S5b on the rear side is provided corresponding to the rear end position of the Glen sieve 25, and the layer thickness of the grain detected by the second layer thickness sensor S5b is substantially zero, that is, straw. When only the waste is present, it is determined that the leakage at the chaff sheave 24 is appropriate, so the second layer thickness sensor S5b allows the swing sorting plate 19 to leak the processed material. Leakage state detecting means for detecting

Further, as shown in FIG. 4, one end 34a of the swing link 34 is pivotally attached to the rear side of the swing selection plate 19, while the other end 34b is pivotally attached to the fixed frame side, and an intermediate portion 34c is provided. Is pivotally attached to one end of a movable link 35a of the eccentric cam mechanism 35. In this structure, when the eccentric cam mechanism 35 is rotated by driving the oscillating motor M4 (see FIG. 1), the oscillating link 34 oscillates with the other end 34b as a fulcrum, and as a result, the oscillating selection plate. 19 will oscillate.

On the other hand, bearings 36 are fixed to the left and right side plates on the front side of the swing selection plate 19, and a pair of left and right U-shaped guides 37 slidably supporting the pair of left and right bearings 36 are fixed frames. It is provided on the side. As shown in FIG. 9, the guide 37 rotates about the horizontal axis Q via the gear box 38 and the fan-shaped gear 39 by rotating the angle changing motor M3 forward and backward. Thereby, the swing selection plate 1
The sliding position of the bearing 36 moves when the rocking member 9 swings, and the tilt angle of the rocking sorting plate 19 changes. That is, U
When the posture of the character-shaped guide 37 is rotated to the vertical posture side from the posture shown in FIG. 9, the front side of the swing selection plate 19 is raised and the vertical stroke at the time of swing is increased, so that the throughput of the processed material is increased. However, if it swings to the horizontal posture side, the swing selection plate 19
The front side of the machine lowers, and the vertical stroke at the time of swinging becomes smaller, which lowers the throughput of the processed material. As described above, the angle changing motor M3 corresponds to the tilt angle changing means for changing the tilt angle of the swing selection plate 19. A potentiometer (hereinafter, referred to as a selection plate angle sensor) S4 for detecting the tilt angle of the swing selection plate 19 from the rotation angle of the fan gear 39 (guide 37) is provided.

As shown in FIG. 1, a control means H composed of a microcomputer or the like is provided.
The detection information of the threshing switch SW1, the culm thickness sensor S1, the chaff opening sensor S2, the toumi wind force sensor S3, the first and second layer thickness sensors S5a and S5b, and the sorting plate angle sensor S4 are input to the. ing. On the other hand, the control means H
From the above-mentioned sheave motor M1, toumi motor M2,
Drive signals for the angle changing motor M3 and the swinging motor M4 are output.

The control means H is a threshing switch SW.
When 1 is on, that is, while the threshing device 2 is operating, the swing sorting plate 19 (actually, the larger the amount of the material to be leaked from the handling chamber A is based on the detection information of the first layer thickness sensor S5a). Is configured to change and operate the sheave motor M1, that is, to rotationally drive the sheave motor M1 so that the leakage opening (chuff opening) of the processed material in the chaff sheave 24) becomes large. At this time, the toumi motor M2 is rotationally driven to change the toumi wind force to the large side or the small side as the chaff opening is changed to the large side or the small side. In order to perform this control, the control means H obtains the target values of the chaff opening degree and the toumi wind force corresponding to the detection values of the first layer thickness sensor S5a based on the stored relationship table, and determines each target. Value and chaff opening sensor S2 or Toumi wind sensor S
The deviation from the detection value of 3 is controlled to zero.

Further, the control means H complements the control of the chaff opening degree based on the detection information of the first layer thickness sensor S5a to make the leakage state of the processed material in the swing selection plate 19 proper. In order to maintain it, the tilt angle of the swing selection plate 19 is also controlled. That is, the control means H controls the second layer thickness sensor S.
On the basis of the information of 5b, when the leakage state of the processed material in the rocking sorting plate 19 (chaff sheave 24) is an insufficient leakage state, that is, the layer thickness detection value has a grain layer other than straw waste. When the value of such a state is set, the angle changing motor M3 is operated so that the inclination angle of the swing selecting plate 19 becomes large. As a result, the vertical stroke of the swing selection plate 19 at the time of swing is increased, and the leakage action on the object to be processed is promoted, and the layer thickness detection value of the second layer thickness sensor S5b is only straw dust. The appropriate leakage value will be obtained, and the insufficient leakage state will be resolved.

Further, as shown in FIG. 1, by utilizing the internal structure of the control means H, a rotation speed changing means 100 for changing the rocking rotation speed of the rocking sorting plate 19 is constructed. The rotation speed changing means 100 is specifically composed of a frequency changing circuit for changing the frequency of the drive signal for the swing motor M4. Then, the control means H, if the insufficient leakage state is not resolved even if the inclination angle of the swing selection plate 19 is increased in the insufficient leakage state,
The rotation speed changing means 100 is operated so that the rotation speed of the swing selection plate 19 increases. As a result, in addition to increasing the vertical stroke of the swing selection plate 19 when swinging, the swing speed is increased, and the leakage action on the processed material is further promoted, and the insufficient leakage state is eliminated. .

Further, the control means H is in the state where the sheave motor M1 is operated to the upper limit opening position of the opening change range, and the leakage state of the processed matter on the swing selection plate 19 is insufficient. In the case of the state, the swing selection plate 19
The angle changing motor M3 so that the inclination angle of the
Is operated, and the rotation speed changing means 100 is operated so that the rocking rotation speed of the rocking selection plate 19 is increased. As a result, even if the chaff opening is operated to the maximum opening, if the leakage state of the rocking sorting plate 19 is insufficient, the vertical stroke during rocking of the rocking sorting plate 19 becomes large and The speed is immediately increased, the leakage action on the processed material is rapidly promoted, and the insufficient leakage state is quickly resolved.

Next, the flow of the sorting control by the control means H will be explained based on the flow chart shown in FIG. First, it is checked whether or not the threshing switch SW1 is turned on, and only when the threshing switch SW1 is turned on, the layer thickness detection value of the second layer thickness sensor S5b corresponds to the value in the state where there is a grain layer other than the straw waste. Check whether it is larger than the set value. When the layer thickness detection value is equal to or less than the set value, only the adjustment control process of the chaff opening and the Toumi wind force based on the layer thickness detection value of the first layer thickness sensor S5a is performed. When the layer thickness detection value of the second layer thickness sensor S5b is larger than the set value, it is determined that the leakage is insufficient, and in this case, it is further determined whether the chaff opening is operated to the maximum opening. When the maximum opening is reached, the tilt angle and the swing rotation speed of the swing selection plate 19 are respectively increased by a predetermined amount, and then the chaff opening and the toumi wind force are adjusted and controlled. When the chaff opening degree is not the maximum opening degree in the leakage shortage state, the rocking sorting plate 19 is provided on condition that the timer operated as described later is not operating.
After the inclination angle is increased by a predetermined amount and the timer is started, the adjustment control processing of the chaff opening and the toumi wind force is performed. Then, the control state is maintained until the timer time, that is, the time (for example, several seconds) at which the result of the increase in the inclination angle of the swing selection plate 19 promoting the leakage action on the processed object can be confirmed. Then, only when the above timer time has elapsed while the leakage is still insufficient, the swing rotation speed of the swing selection plate 19 is further increased by a predetermined amount.

[Other Embodiments] Other embodiments will be listed below.
In the above-described embodiment, when the leakage state of the processed material on the swing selection plate 19 is the insufficient leakage state, the control means H increases the inclination angle of the swing selection plate 19 or changes its swing rotation speed. Was increased, or both of them were controlled. However, when the leakage shortage condition is still not solved by performing such control, the amount of grain culm put in the handling room A is reduced. In order to do so, the control means H can be configured to control the shift so as to reduce the vehicle speed, for example.

Further, in the above-described embodiment, when the leakage state of the processed material in the swing selection plate 19 is insufficient, the tilt angle of the swing selection plate 19 is increased or its rotation speed is increased. Is provided or a control means H for controlling both of them is provided. However, for example, in an inexpensive combine or the like which does not have such control means H,
The operator may be informed that the processed material of the swing selection plate 19 is in the state of insufficient leakage by displaying a character on the display panel such as "Loss increases" or a voice. In this case, the operator manually performs an operation such as slowing down the vehicle speed in order to solve the shortage of the leakage state based on the above display and the like.

The processed material amount detecting means for detecting the amount of processed material leaked from the handling room A is not limited to the first layer thickness sensor S5a of the above embodiment. For example, an object to be processed that leaks from the handling room A onto the swing selection plate 19 is imaged by an image pickup means such as a television camera and the image information is image-processed to detect the amount of the object to be processed, or a transmission type light is used. It can be configured by various means such as projecting the detection light of the sensor onto the processing object in the lateral direction and detecting the amount of the processing object from the state of the transmitted light.

The means for causing the processed material to leak while changing the leak opening in the swing selection plate 19 is not limited to the chaff sheave as in the above-mentioned embodiment. For example, a mesh-shaped or slit-shaped opening is called a slide Glen pan. Shield with a shield plate
The sliding Glen pan may be slid to change the shielding area of the opening, that is, the opening degree.

The leakage state detecting means for detecting the leakage state of the processed material on the swing selection plate 19 is not limited to the second layer thickness sensor S5b of the above embodiment. For example, when the ratio of the detection layer thickness of the second layer thickness sensor S5b to the detection layer thickness of the first layer thickness sensor S5a is smaller than the set value, the processed products are sorted and conveyed from the front side to the rear side. Since it is determined that the leakage amount is less than the set amount, that is, the leakage insufficient condition, it is possible to configure the leakage state detecting means by both the layer thickness sensors S5a and S5b.

The structure for changing the inclination angle of the swing selection plate 19 is not limited to that of the above-described embodiment, and for example, a pair of left and right supports slidably supporting the bearing 36 fixed to the swing selection plate 19. The U-shaped guide 37 may be moved up and down in the same cycle as the swing cycle of the swing selection plate 19 without changing its posture.

The rotation speed changing means for changing the rocking rotation speed of the rocking selection plate 19 is not limited to the one constituted by the frequency changing circuit or the like provided in the control means H as in the above-mentioned embodiment, but may be, for example, The rotation speed changing means is composed of a frequency changing circuit or the like provided separately from the control means H, and the rotation speed changing means receives the rotation speed increase / decrease command from the control means H and outputs the drive frequency to the swing motor M4. It may be changed.

The present invention is not limited to the self-removing combine as in the above embodiment, but can be applied to a threshing device such as a harvester called a normal combine or a harvester.

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

[Brief description of drawings]

FIG. 1 is a block diagram of a threshing selection control device of a threshing device according to an embodiment of the present invention.

FIG. 2 is a side view of the self-removing combine.

FIG. 3 is a schematic diagram of a power transmission mechanism

FIG. 4 is a side perspective view of the threshing device.

FIG. 5 is a diagram showing a feed chain and a culm thickness sensor.

FIG. 6 is a diagram showing a chaff sheave and means for changing its opening.

FIG. 7 is a view showing Toumi and its wind force changing means.

FIG. 8 is a side view showing the structure of the layer thickness sensor.

FIG. 9 is a side view showing a structure for changing the tilt angle of the swing selection plate.

FIG. 10 is a flowchart of control operation.

[Explanation of symbols]

 A handling room S5a treated material amount detecting means B sorting device 19 swinging sorting plate M1 leakage opening changing means H control means S5b leakage state detecting means M3 tilt angle changing means 100 rotational speed changing means

Claims (3)

[Claims] 1. An oscillating sorting plate of a sorting device (B) as the amount of leaked substance is larger, based on the information of the amount of leaked substance detected (S5a) for detecting the amount of leaked substance from the handling room (A). A threshing selection control device provided with a control means (H) for changing and operating the leakage opening changing means (M1) so that the leakage opening of the processed matter in (19) becomes large. Leakage state detecting means (S5b) for detecting the leakage state of the processed material in the sorting plate (19), and tilt angle changing means (M3) for changing the tilt angle of the swing sorting plate (19).
And the control means (H) controls the leakage state detection means (S5).
Based on the information of b), when the leakage state of the processed material in the swing selection plate (19) is insufficient, the inclination of the swing selection plate (19) is increased in order to enhance the ability to feed the processed material. A threshing selection control device configured to operate the inclination angle changing means (M3) so that the angle becomes large. 2. A rotation speed changing means (100) for changing the rocking rotation speed of the rocking sorting plate (19) is provided, and the control means (H) performs the rocking sorting in the leakage shortage state. If the insufficient leakage state cannot be resolved even if the inclination angle of the plate (19) is increased, the swing selection plate (1
9. The rotation speed changing means (100) is operated so as to increase the swing rotation speed of 9).
The threshing selection control device described. 3. Rotation speed changing means (100) for changing the rocking rotation speed of the rocking sorting plate (19) is provided, and the control means (H) is the leakage opening changing means (M1).
Is operated up to the upper limit opening position of the opening change range, and if the leakage state of the processed material in the swing selection plate (19) is insufficient, the processed material feeding capability is increased. Therefore, the tilt angle changing means (M3) is operated so that the tilt angle of the swing selection plate (19) becomes large, and
The threshing selection control device according to claim 1, which is configured to operate the rotation speed changing means (100) so that the rotation speed of the swing selection plate (19) increases.