JP2001000033A - Apparatus for controlling threshing and screening - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out a suitable screening treatment as far as possible when the amount of a second processed material deviates from the amount predicted from the amount of the processed material in a screening control by bringing a leakage opening of a shaking screening plate and an air flow of a winnower to a larger side when the amount of processed material is larger and adjusting to a predetermined objective amount by increasing or decreasing. SOLUTION: In this apparatus for controlling threshing and screening, a detecting means S4 for detecting the amount of a second processed material recovered in a second material recovery unit 21 is installed. The objective air flow of a winnower 18 is changed to a smaller side when the amount of the second material detected by the second material detecting means S4 is larger than a predicted amount from the amount of a processed material on a shaking screening plate 19 in carrying out an adjustment control in a state of little amount of the processed material on the shaking screening plate 19 detected by a detecting means S5 for detecting the amount of the treated material and by setting an objective opening of the shaking plate 19 to a larger side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an oscillating sorting plate which performs a sorting while leaking while transferring a processed material to be sorted,
The swing sorting plate is provided with a karano that blows a sorting wind in the processed material transfer direction, and the first thing collecting unit that collects the first thing leaking from the swing sorting plate, and the swing sorting plate A second product recovery unit for recovering the leaked second product is provided side by side in the processed material transfer direction of the swing sorting plate, and a processed material amount detecting unit for detecting the processed material amount on the swing sorting plate is provided. Based on the detection information of the processing amount detection means, the larger the amount of processing on the swing selection plate, the larger the leakage opening of the swing selection plate, the larger the target opening degree, Activating the opening adjustment means for changing and adjusting the leakage opening of the swing sorting plate, and so that the larger the amount of processed material on the swing sorting plate, the larger the amount of Karin air becomes the larger target air flow. And control means for executing adjustment control for operating the air flow rate adjusting means for changing and adjusting the air flow rate of Karamin. The control means is configured to change the target opening and the target based on information of the target opening and the target value adjusting means for changing and adjusting the value of the target air flow with respect to the same value of the amount of the processed material on the swing sorting plate. The present invention relates to a threshing / sorting control device configured to change and set an air volume.

[0002]

2. Description of the Related Art In the above-described threshing / sorting control device provided in a combine or the like, for example, a threshing product leaks from a handling room onto a rocking sorting plate, and after being subjected to a sorting process, a second product collecting section. The recovered second product is reduced, and the processed material to be sorted is supplied. Then, based on the detection information of the layer thickness sensor (corresponding to the processed material amount detecting means) for detecting the layer thickness of the processed material amount on the swing sorting plate, when the processed material amount is large (the layer thickness is large), the oscillation is performed. While increasing the target values of the leakage opening of the sorting plate and the Karino wind, if the amount of processed material is small (the layer thickness is small), reduce the target values of the opening of the rocking separator and the Karino wind. In this way, the control of the adjustment of the leakage opening degree of the swing sorting plate and the flow rate of Karaminomi is performed. However, since the leakage performance of the processed material on the rocking sorter differs depending on the degree of wetting of the crop, etc., an adjusting means consisting of a volume or the like for changing and adjusting the target value of the leakage opening and the target amount of Karamin for the same processed material amount is required. Is provided. For example, when the crop is wet, it is determined that the leakage performance of the processed material is poor. Therefore, the target values of the leak opening degree and the amount of Karin air for the same processed material amount are changed and adjusted to the large side.

[0003]

As in the above-mentioned prior art, control for adjusting the leak opening degree and the amount of air flow to a target value determined based on the detection information of the amount of processed material and the adjustment information by the adjusting means. In this case, since the adjustment of the target opening and the target air volume by the adjusting means is not appropriate, a state occurs in which the amount of the second product deviates from the amount predicted from the processed material amount. Incidentally, the amount of the second product is expected to increase as the amount of the processed material increases. For example, when it is determined that the crop is wet and the target opening and the target air volume are adjusted to the large side, and when the actual processed material is not so wet, the processed material on the rocking sorter plate is at a high speed. Leakage, the amount of processed material on the oscillating sorting plate decreases, and the leaked processed material is transported to the second product collection unit by the large air volume sorting wind, and the amount of second product is estimated A more increasing situation occurs. Also, when the target opening degree and the target air volume are adjusted to a small side by judging that the crop is dry, the actual processed material is not so large under the condition that the processed material amount supplied to the swing sorting plate is relatively large. When it is not dried, the amount of the processed material on the oscillating sorting plate increases, and the amount of the second product transferred by the oscillating sorting plate and collected by the second product collecting unit is larger than the expected amount. A condition arises. In addition, when the target opening degree and the target air volume are adjusted to a medium level when the wetness of the crop is judged to be the standard state, the actual processed material is standardized under the condition that the amount of the processed material supplied to the rocking sorter is relatively small. When it is dry from the state, the processed material on the oscillating sorting plate leaks relatively quickly, the amount of the processed material on the oscillating sorting plate decreases, and A state occurs in which the amount of the special item is also smaller than the predicted amount.

[0004] In the state where the amount of the second product is larger than the amount predicted from the processed material amount, the third loss increases,
If the amount of the second product to be reduced is increased and the grain may be damaged, on the other hand, if the amount of the second product is smaller than the amount expected from the processed material amount, the swing sorting plate is transferred. On the lower side in the direction, the amount of the processed material becomes extremely small, and there is a possibility that mixing of the second thing or straw waste etc. into the first thing and mixing of the straw waste etc. into the second thing may occur, and in any case, Appropriate selection processing will not be performed.

The present invention has been made in view of such circumstances, and an object of the present invention is to set the leakage opening degree and the amount of Karamin of a rocking sorting plate to be larger as the amount of processed material increases, and In the sorting control for adjusting to the target value changed and adjusted by the adjusting means, when the amount of the second product deviates from the amount expected from the processed material amount, the appropriate sorting process is performed as much as possible. It is in.

[0006]

According to the first aspect of the present invention, in the threshing / sorting control device described above, the second quantity detecting means for detecting the quantity of the second product collected in the second product collection section is provided. The control means is provided when the amount of the processed material on the swing sorting plate is small, and when the adjustment control is executed by setting the target opening to a large side, When the amount of the second product detected by the detection means is larger than the amount predicted from the processed material amount, the target air volume is changed to a small side. In other words, the amount of the second product collected by the second product collection unit is predicted to increase as the amount of the processed material on the swing sorting plate increases, and the amount predicted for the processed material amount can be set ( See FIG. 12). And
As illustrated in FIG. 11, in the small opening range corresponding to the state in which the amount of the processed material on the swinging separation plate is small (in the figure, the range of the processed material amount is smaller than RL), the target value adjusting unit sets the large-side opening. (In the figure, the target opening degree of the swing sorting plate that is changed and set to 70% or more of the entire adjustment range (in the figure,
If the amount of the second product is larger than the amount predicted from the above-mentioned processed material amount during the adjustment control to the (chaff opening degree), the target air volume of Karamino is changed to the small side. Therefore, in the state where the amount of the processed material on the oscillating sorting plate is small, the amount of the second product can be estimated from the amount of the processed material even though the leakage opening of the oscillating sorting plate is adjusted to the large side. Since it is judged that the number of grains to be collected as the first thing by leaking the rocking sorting plate is being blown to the second product collection part by the sorting wind by Karino, By reducing the size, it is possible to prevent such grains from being mixed into the second product, and to perform an appropriate sorting process.

According to a second aspect of the present invention, in the threshing / sorting control apparatus described above, a second quantity detecting means for detecting an amount of the second product collected in the second product collecting section is provided, and the control means Is in a state where the amount of the processed material on the rocking sorting plate is large,
During the execution of the adjustment control, if the amount of the second object detected by the second amount detecting means is larger than the amount predicted from the processed object amount, the target opening is set to the large side. It is configured to change to. That is, as illustrated in FIG. 11, a state in which the amount of the processed material on the swing sorting plate is large (for example,
The target opening (chaff opening in the figure) of the oscillating sorter is set to the large opening range in accordance with the processing amount in the range larger than the RU, and the target air flow in Karin (Tomi in the figure) is set. When the amount of the second product is larger than the predicted amount when the adjustment amount is set to the large-side air amount range and the adjustment amount is controlled, the target opening of the swing selection plate is set to the large side. change. Therefore, the fact that the amount of the processed material on the rocking sorter plate is large and the amount of the second product is larger than the amount expected from the processed material amount means that a large amount of the processed material is transferred on the rocking sorter plate. Since it is determined that there is a risk of an increase in the third loss, the leakage opening of the swing sorting plate is increased, and a large amount of processed material on the swing sorting plate is quickly leaked. Thus, it is possible to avoid an increase in the third loss due to the increase in the second product, and perform an appropriate sorting process.

According to a third aspect of the present invention, in the threshing / sorting control device described above, second quantity detecting means for detecting the quantity of the second product collected in the second product collection section is provided, and In the state where the amount of processed material on the swing sorting plate is small, when the adjustment control is performed, the amount of the second product detected by the second amount detecting means is predicted from the processed material amount. When the amount is smaller than the predetermined amount, the target opening is changed to a small side and the target air flow is changed to a large side. That is, as illustrated in FIG. 11, a state in which the amount of the processed material on the swing sorting plate is small (for example, the amount of the processed material is R
L), the target opening (chaff opening in the figure) of the swing sorting plate is set to a small opening range,
When the target air volume of Karino (Tomi air volume in the figure) is set in the small air volume range and adjusted and controlled, if the amount of the second product is smaller than the expected volume, rocking sorting is performed. While changing the target opening of the plate to the small side, the target airflow of Karamino is changed to the large side. Therefore, the fact that the amount of the processed material on the swing sorting plate is small and the amount of the second reduced product is smaller than the amount expected from the processed material amount means that the processed material amount is small over the whole swing sorting plate. It is determined that there is a risk of mixing of the second thing or straw waste etc. into the first thing and mixing of the straw waste etc. into the second thing. On the other hand, it is possible to perform an appropriate sorting process by increasing the amount of sorting air and increasing the amount of sorting air so as to avoid mixing of the second thing and straw waste into the above-mentioned first thing and mixing of straw waste and the like into the second thing. it can.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a combine threshing / sorting control device will be described below with reference to the drawings. The self-removable 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 reaper 4, a grain tank 8, and the like. The mowing device 4 includes a weeding tool 5, a raising device 6, and a cutting blade 7,
The harvested culm is transported by the transport device 9 to the threshing device 2. In addition, a stock sensor S1 is provided at the start end side of the transport device 9 to turn on when the grain stalk touches to detect that the harvesting operation is being performed.

The power transmission system is configured as shown in FIG. The power of the engine E is transmitted to the threshing device 2 via the threshing clutch 10 and transmitted to the transmission 13 of the crawler traveling device 1 via the traveling clutch 11 and the hydraulic continuously variable transmission 12. Power is transmitted from the transmission 13 to the reaper 4 via a reaping clutch 14. Also, in order to detect whether or not the threshing device 2 is operating,
Threshing switch S for detecting the on / off state of threshing clutch 10
W1 is provided. A speed change motor M3 for performing a speed change operation of the continuously variable transmission 12 is provided.

As shown in FIG. 4, the threshing apparatus 2 comprises
5, a feed chain 16 that feeds and transports the harvested stalks supplied from the reaper 4 to the handling room A, a cross flow fan 17 for discharging dust, and a sorter for sorting processed products after threshing. Device B and the like are provided. In the sorting device B, the processed material from the handling room A and the second material to be reduced as described later are subjected to the drop sorting while being transported to the rear side of the machine body (processed material transfer direction) as the selected sorting object. An oscillating sorting plate 19 and a Karamin 18 for blowing a sorting wind in the direction of transfer of the processed material of the oscillating sorting plate 19 are provided, and the kernels leaking from the oscillating sorting plate 19 are collected as the first thing. A first material collection unit (hereinafter, referred to as a first mouth) 20 and a second material collection unit (hereinafter, referred to as a second material collection unit) that collects a second material such as a grain with spikes and straw chips leaked from the swinging sorting plate 19. 21) are provided side by side in the direction in which the swing sorting plate 19 transfers the workpiece.

The harvested culm supplied and transported to the handling room A by the feed chain 16 is threshed by the rotation of the handling drum 15.
At the lower part of the handling room A, a receiving net 22 is provided along the outer periphery of substantially the lower half of the handling drum 15. It leaks onto the plate 19. The processed material mixed with the straw debris and the like that could not be leaked from the receiving net 22 falls to the swing sorting plate 19 from the rear end of the receiving net 22.

The swing sorting plate 19 is composed of a grain pan 23 located above the karino 18, a chaff sheave 24 located behind it, a grain sheave 25 located below it, and the like. The first port 20 and the second port 21 are each provided with a screw conveyor, and the kernels leaking from the grain sieve 25 are collected at the first port 20 and are transferred to the kernel tank 8 by a screw-type first transport device 45. It is transported and stored (see FIG. 10).

The rear end of the chaff sheave 24 and the Glen sheave 2
The mixture of the grain and the straw chips dropped from the rear end of No. 5 is collected as a second product at the second port 21 and conveyed to the swing sorting plate 19 by a second screw conveyor 34.
In other words, the screw conveyor 34 returns the second product collected at the second port 21 to the swing sorting plate 19. More specifically, as shown in FIGS. 4, 8 and 9, a discharge port 35 is provided in front of the tip of the screw conveyor 34, and the screw is rotated together with the screw at the tip of a rotating shaft 36 of the screw. Rotating plate 3
7 is fixed, and the second product lifted and conveyed to the lateral side position of the handling room A by the screw conveyor 34 is discharged to the front side from the discharge port 35 so as to be repelled by the rotating plate 37. , Is supplied to the swing sorting plate 19.

As shown in FIG. 5, a plurality of plate members 24a are arranged on the chaff sheave 24 at predetermined intervals in a processing object transfer direction (machine longitudinal direction). It is pivotally attached to the left and right side plates so as to be freely rotatable, and the lower end is pivotally connected by a link 24b. Therefore, when the link 24b is moved in the front-rear direction, the respective plate-like members 24a simultaneously rotate, and the adjacent distance t between the respective plate-like members 24a changes. This interval t corresponds to the leakage opening (hereinafter, referred to as the chaff opening) of the processed material on the swing sorting plate 19.

The opening of the chaff is adjusted by rotating the sheave motor M1 forward and backward, and the forward and reverse rotation is converted into forward and backward movement of the link 25 by a gear-type linkage mechanism 26, a swing arm 27 and a wire 28. As a result, the chaff opening is changed as described above. That is, the sheave motor M1 corresponds to an opening adjustment unit that changes and adjusts the chaff opening. In the drawing, reference numeral 29 denotes a spring for returning the chaff opening to the closing side, and a potentiometer-type chaff opening sensor S2 for detecting the chaff opening from the rotation angle of the swing arm 27 is provided. Is provided.

Adjustment of the air flow of the Karamin 18 (hereinafter referred to as tomami air flow) is performed by changing the rotation speed of the Karamin 18. As shown in FIG. 6, an input pulley 18a for rotating and driving the kara 18 is constituted by a split pulley, and the effective diameter of the input pulley 18a is changed by the forward / reverse driving of the toumi motor M2.
That is, when the torsion motor M2 is driven to rotate forward, the arm 33 is pulled through the gear-type linkage mechanism 30, the swing arm 31, and the wire 32, and the interval between the split pulleys 18a is widened by a cam mechanism (not shown). V belt 1
The effective diameter of the portion where 8b comes into contact is reduced, the rotation speed of the garbage 18 is increased, and the wind volume of the turtle is increased. When the torsion motor M2 is reversed, each part moves in the opposite direction to the above,
The wind volume of turtle becomes small. Therefore, the above-mentioned toumi motor M
Reference numeral 2 corresponds to an air volume adjusting means for changing and adjusting the air volume of the turtle. In addition, a potentiometer-type toy air flow sensor S3 for detecting the toy air flow from the number of rotations of the Karaoke 18 is provided.

As shown in FIG. 4 and FIG.
9, a layer thickness sensor S5 as a processing amount detection means for detecting the processing amount on the rod 9 is attached to a rod provided on the upper side of the left and right side plates of the swing sorting plate 19, and is disposed below the receiving net 22. ing. The layer thickness sensor S5 includes plate members T1 and T2 rotatably hanging around the axis of the horizontal axis, and a potentiometer PM for converting a backward rotation angle of the plate members T1 and T2 into a resistance value. When the processed material on the swing sorting plate 19 is conveyed rearward and hits the plate-like members T1 and T2, the plate-like members T1 and T2 rotate rearward as shown by a two-dot chain line. When the processed material amount is small and the layer thickness is small, the plate-shaped member T1 contacts the processed object and rotates backward, and when the processed material amount is large and the layer thickness is large, the plate-shaped member T2 contacts the processed material. And rotate backward. With this configuration, the larger the layer thickness of the processed object, the larger the rotation angle of the sensor bars T1 and T2. Therefore, the layer thickness of the processed object, that is, the amount of the processed object is detected from the resistance value of the potentiometer PM.

As shown in FIG. 9, a second reduction amount sensor S4 for detecting a reduction amount of a second product which is recovered by the screw conveyor 34 and then returned to the swinging sorting plate 19 after being collected at the second opening 21. Is a plate-like member 47 rotatable around a vertical axis.
And a potentiometer P1 for detecting the rotation angle of the plate-like member 47, and is provided at the discharge port 35 of the second screw conveyor 34. That is, the plate member 4
Since the rotation angle of the plate-like member 47 increases as the amount of the second product corresponding to 7 increases, the reduction amount of the second product is detected based on the rotation angle. Therefore, the second reduction amount sensor S
At 4, the second amount detecting means for detecting the amount of the second product collected in the second port 21 is constituted.

As shown in FIG. 10, the first product is lifted and conveyed to the left side position of the tank 8 by the screw conveyor 45 and discharged into the tank, and the yield sensor S6 for detecting the amount of the grain. Is a plate-shaped member 46 that is rotatably supported about the longitudinal axis and hits the discharged grains,
A potentiometer P for detecting the rotation angle of the plate member 46 is provided near the discharge port of the screw conveyor 45. In other words, the rotation angle of the plate-like member 46 increases as the amount of grain that hits the plate-like member 46 increases. Therefore, the kernel amount is detected based on the detection information of the rotation angle. Therefore, for example, in the case where the detection unit is installed inside the screw conveyor 45 to detect the grain amount,
The occurrence of such clogging can be appropriately avoided as compared with the possibility of causing clogging. And
Based on the detection information of the grain amount, for example, every time a field of a predetermined area is cut and harvested, the detection value of the yield sensor S6 can be integrated to determine the amount of harvest from the field of the predetermined area. After the harvesting operation is performed, it is possible to appropriately perform an evaluation such as comparing the harvesting efficiency (the amount of grains per unit area) for each field.

As shown in FIG. 1, a control means H comprising a microcomputer or the like is provided.
, The detection information of the stock sensor S1, the chaff opening sensor S2, the turtle air flow sensor S3, the second reduction amount sensor S4, the layer thickness sensor S5, the yield sensor S6, and the threshing switch SW1 are input. Information of the chaff adjustment volume VR1 and the toumi adjustment volume VR2 in the formula is input. On the other hand, from the control means H, drive signals for the sheave motor M1, the torsion motor M2, the speed change motor M3, and the buzzer BZ for alarm are output.

The control means H includes a layer thickness sensor S
A target opening (a target value of the chaff opening) is set based on the detection information of No. 5 and the information of the chaff adjustment volume VR1, and the sheave motor M1 is operated so that the chaff opening becomes the set target opening. In addition, a target air volume (a target value of the air volume) is set based on the detection information of the layer thickness sensor S5 and the information of the air volume VR2, and the air motor M2 is operated so that the air volume of the air reaches the set target air volume. It is configured to execute adjustment control. Specifically, the sheave motor M1 is operated so that the deviation between the target value of the chaff opening degree and the detection value of the chaff opening degree sensor S2 falls within an allowable range. The torsion motor M2 is operated so that the deviation from the detected value of S3 falls within the allowable range.

The setting of the target value of the chaff opening and the target value of the air flow rate will be described below. Basically, as shown in FIG. The target value of the chaff opening is set to the larger target opening, and the swing sorting plate 19 is set.
The target value of the turtle air volume is set to the target air volume on the large side as the amount of processed material above is large (that is, as the layer thickness of the processed material is large). Accordingly, the target value of the chaff opening can be changed and adjusted by manually operating the chaff adjustment volume VR1, and the target value of the toy air volume can be changed and adjusted by manually operating the tough adjustment volume VR2.

Specifically, data (represented by a straight line L1 in FIG. 11A) representing the relationship between the amount of processed material (layer thickness) and the target value of the chaff opening is stored in the control means H, and the chaff adjustment volume is set. If VR1 is operated at the center position of the adjustment range, the target value of the chaff opening is set to the value of the storage data (the opening indicated by the straight line L1 in FIG. 11A), and the chaff adjustment volume VR1 is set to the above value. When operated from the center position to the large side, the target value of the chaff opening is changed and set to be larger than the value of the stored data, and when the chaff adjustment volume VR1 is operated from the center position to the small side, the chaff adjustment volume is set. The target value of the opening is changed and set to a value smaller than the value of the storage data.
Then, the target value of the chaff opening is changed and set to a value on the large side or on the small side as the chaff adjustment volume VR1 is operated to a position farther away from the center position on the larger or smaller side. Similarly, with respect to the target value of the air volume, the data (represented by the straight line L2 in FIG. 11B) indicating the relationship between the amount of processed material (layer thickness) and the target value of the air volume is indicated by the control means H.
If the toumi adjustment volume VR2 is operated at the center position of the adjustment range, the target value of the toumi air volume is set to the value of the stored data (air volume indicated by the straight line L2 in FIG. 11B), and When the adjustment volume VR2 is operated from the center position to the large side, the target value of the air volume is changed and set to be larger than the value of the stored data, and the air volume VR2 is operated to the small side from the center position. Then, the target value of the air volume is changed to a value smaller than the value of the storage data. And the toumi adjustment volume VR
The target value of the airflow is changed and set to a value on the large side or on the small side as the number 2 is moved to a position away from the center position on the large side or on the small side. As described above, the target value adjusting means for changing and adjusting the values of the target opening degree and the target air flow with respect to the same value of the processed material amount (layer thickness) on the swing sorting plate 19 by the chaff adjustment volume VR1 and the toumi adjustment volume VR2. The control means H executes the adjustment control by changing and setting a target opening degree and a target air flow rate which are determined in accordance with the processing object amount, based on the information of the chaff adjustment volume VR1 and the toumi adjustment volume VR2. It is configured to be.

When the amount of the processed material on the swinging sorting plate 19 is large, it is predicted that the amount of the second thing leaking from the swinging sorting plate 19 and collected in the second opening 21 also becomes large. Is done. In other words, as shown in FIG. 12, an appropriate amount (range indicated by oblique lines in the drawing) as the amount of the second product is predicted with respect to the amount of processed material (layer thickness) on the oscillating sorting plate 19. And data representing the relationship between the quantity of the second product and that of the second product. When executing the adjustment control, the control means H is configured to also execute control based on the detection information of the second quantity. That is, when the amount of the processed material on the swing sorting plate 19 is small and the target opening degree is set to the large side to execute the adjustment control, the control means H controls the second reduction amount. When the amount of the second product detected by the sensor S4 is larger than the amount predicted from the processed material amount, the target air volume is changed to a small side,
Further, when the adjustment control is executed in a state where the amount of the processed material on the swing sorting plate 19 is large, the second reduction amount sensor S
When the amount of the second product detected in Step 4 is larger than the amount predicted from the processed material amount, the target opening is changed to a large side. In the state where the amount of processed material is small, when performing the adjustment control,
If the amount of the second product detected by the second reduction amount sensor S4 is smaller than the amount predicted from the processed material amount,
The target opening is changed to a small side and the target air volume is changed to a large side. Specifically, as shown in FIG. 11, the entire variation range of the amount of processed material (layer thickness) is divided into three equal parts, and the upper set value R is set at the boundary position between the upper area and the intermediate area.
U is set, and a lower set value RL is set at a boundary position between the lower region and the intermediate region. When the layer thickness detection value is smaller than the lower set value RL, the process on the swing sorting plate 19 is performed. When it is determined that the amount of material is small, and when the layer thickness detection value is larger than the upper set value RU, it is determined that the amount of material to be processed on the swing sorting plate 19 is large. Further, when the entire adjustment range of the chaff opening is set to 100% and the target opening is 70% or more, it is determined that the target opening is changed to the large side by the chaff adjustment volume VR1.

Next, the sorting control by the control means H will be described with reference to the flowcharts shown in FIGS. First, the state of the threshing switch SW1 and the stock sensor S1 is checked, and when the threshing switch SW1 is in the off state or when the threshing switch SW1 is in the on state, the stock sensor S1 is checked.
If the set time (the time required for the harvested crop to be transported from the harvesting device 4 to the sorting device B) has elapsed after the power is turned off, the control for adjusting the opening degree of the chaff and the air volume of the turtle, the vehicle speed deceleration described later, and the like. A stop process for stopping all executions of the alarm operation is performed. In cases other than the above, the detection value of the second reduction amount sensor S4 is checked, and when the detection value of the second reduction amount sensor S4 is zero or almost zero, the stock sensor S
If the set time has elapsed after 1 is turned on, it is determined that the second screw conveyor 34 or the like is jammed or almost jammed, and the alarm buzzer BZ is activated. 2
When the detection value of the turn reduction amount sensor S4 is not in the above-mentioned abnormal state, the control for adjusting the chaff opening degree and the air volume of the turtle is executed. However, the target value of the chaff opening degree is the maximum value (fully opened state), the target value of the tofu air volume is adjusted to the minimum value, and the amount of the second object detected by the second reduction amount sensor S4 is estimated as described above. If the amount is larger than the amount (FIG. 12), the speed change motor M3 is decelerated to reduce the vehicle speed. In other words, in this case, the processed material on the swinging sorting plate 19 cannot be quickly leaked by changing the opening degree of the chaff to a larger side, so that the amount of harvested grain is reduced by reducing the vehicle speed,
By reducing the amount of processed material from the handling room A, the amount of processed material on the swing sorting plate 19 is reduced. Note that the vehicle speed is decelerated at a set deceleration amount every set time (for example, several seconds).

In the control for adjusting the opening degree of the chaff, first, the detection value of the layer thickness sensor S5 and the chaff adjustment volume VR are set.
1, a target opening (hereinafter referred to as a reference opening) is set. Next, when the layer thickness detection value is larger than the upper set value RU, it is further checked whether or not the amount of the second product is larger than the predicted amount, and the amount of the second product is calculated as the predicted amount. If it is larger, the reference opening is changed to the larger set amount to be the target opening value, while the detected layer thickness is lower than the lower set value RL.
If smaller, it is further checked whether the amount of the second product is smaller than the predicted amount. If the amount of the second product is smaller than the predicted amount, the reference opening is set to the set amount. Change to the small side to obtain the target opening value. In cases other than the above, the initially set reference opening is directly used as the target opening. Then, a deviation between the target opening value and the opening detection value (target opening value−opening detection value) is obtained. If the deviation is plus, the chaff motor M1 is operated to the larger opening, and the deviation is minus. If the deviation is within the allowable range, the operation of the chaff motor M1 is stopped.

In the control of the adjustment of the air volume of the turtle, first, the detection value of the layer thickness sensor S5 and the volume of the turtle adjusting volume VR are adjusted.
2, a target air volume (hereinafter, referred to as a reference air volume) is set. Next, when the detected layer thickness is smaller than the lower set value RL, it is checked whether or not the chaff opening is adjusted to the large side (70% or more of the entire adjustment range). If it is adjusted to the large side,
Check whether the amount of the second product is greater than the expected amount,
When the amount of the second product is larger than the predicted amount, the reference air flow is changed to the smaller set amount and set as the target air flow value. On the other hand, when the layer thickness detection value is smaller than the lower set value RL, the chaff opening is adjusted to the larger side, but the condition that the amount of the second product is larger than the predicted amount is not satisfied. ,
When the chaff opening is not adjusted to the large side when the detected layer thickness is smaller than the lower set value RL, whether or not the amount of the second product is smaller than the predicted amount If the amount of the second product is smaller than the predicted amount, the reference air flow is changed to the larger set amount and set as the target air flow value. In other cases, the initially set reference airflow is used as it is as the target airflow. Then, a deviation between the target airflow value and the airflow detection value (target airflow value−airflow detection value) is obtained, and if the deviation is positive, the toe motor M2 is operated to the large airflow side; When the deviation is within the allowable range, the operation of the torsion motor M2 is stopped.

In the above adjustment control, the control means H
Resets the target opening value changed from the reference opening and the target airflow value changed from the reference airflow once the set time elapses after the stock sensor S1 is turned off, and The opening is maintained at the minimum opening, and the air volume of the turtle is maintained at the minimum air volume. That is, when the harvesting travel for one stroke in the field is completed, the supply of the harvested grain culm to the threshing device 2 is stopped until the harvesting travel of the next stroke is started, so that the state of the sorting process is returned to the original state once. It is.

[Another Embodiment] In the above embodiment, the control means H operates in a state in which the amount of the processed material on the swing sorting plate 19 is small.
Further, when the target opening is set to the large side and the adjustment control is executed, the amount of the second product detected by the second reduction amount sensor S4 is the amount predicted from the processed material amount. If the target air flow rate is smaller than the target air flow rate, and if the adjustment control is being performed in a state in which the amount of the processed material on the swing sorting plate 19 is large, the second reduction amount sensor S
If the amount of the second product detected in step 4 is larger than the amount predicted from the processed material amount, the process of changing the target opening to the large side and the processed material amount on the swing sorting plate 19 If the amount of the second product detected by the second reduction amount sensor S4 is smaller than the amount predicted from the processed material amount while the adjustment control is being executed in a small state, the target The processing is performed such that the opening degree is changed to the small side and the target air volume is changed to the large side. However, it is not necessary to perform all of the above three processings. For example, only one of the changing processings is performed. You may do so.

In the above-described embodiment, in order to determine whether the amount of the processed material on the swing sorting plate 19 is large or small, the entire variation range of the processed material amount is divided into three equal parts, and if it is in the upper region, the processed material amount is large. It is assumed that the state is a state in which the amount of the processed material is small if it is in the lower region. However, the present invention is not limited to this. The region may be divided so as to be narrower than the intermediate region.

In the above-described embodiment, in order to determine whether or not the leakage opening of the swing sorting plate 19 is large, 70% of the full opening adjustment range is used as a reference value for determination, and the opening is larger than this. For example, it was determined that the leakage opening was on the large side, but it is not limited to this, and a value greater than 70%,
Alternatively, a value smaller than 70% may be set as the reference value for determination.

In the above embodiment, the processing object amount detecting means is constituted by the contact type layer thickness sensor S5. However, for example, a non-contact type layer thickness sensor which detects the layer thickness optically may be used.
A sensor other than the layer thickness sensor may be used.

In the above embodiment, the target value adjusting means is constituted by the chaff volume VR1 and the toy volume VR2 so that the target opening and the target air volume can be individually changed and adjusted. The adjusting means may be constituted by a single volume or the like for simultaneously changing and adjusting the target opening and the target air volume. In other words, when the target opening and the target air volume are separately changed and adjusted by the two volumes, an operation error or the like causes the target air volume to become a value that is too small while the target opening is a large value, for example. In contrast to the possibility that the adjustment of the opening and the target air volume may not be well-balanced, the single volume has the advantage that the target opening and the target air volume can be adjusted in a well-balanced manner while preventing operation errors.

As the second amount detecting means, the impact force of the second object discharged from the second screw conveyor 34 is detected in addition to the rotation type sensor as in the above embodiment, and the impact force is detected. An impact sensor that detects the amount of the second object based on the size, a torque sensor that detects the load of the screw conveyor 34, or the like may be used. In addition, as a means for reducing the second product, for example, a slower-type transfer device may be used in addition to the screw-conveyor-type transfer device as in the above embodiment.
Instead of returning the second product to the swing sorting plate 19, the second product may be returned to the handling room A.

The present invention is not limited to the combine as in the above embodiment, and can be applied to a threshing / sorting control device of another harvester such as a harvester.

[Brief description of the drawings]

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

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

FIG. 3 is a system diagram showing power transmission of the combine.

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

FIG. 5 is a diagram showing a chaff sheave and its opening degree adjusting means;

FIG. 6 is a diagram showing Karino and its air volume changing means.

FIG. 7 is a side view showing a layer thickness detecting means.

FIG. 8 is a sectional view of the threshing apparatus as viewed from the front of the combine.

FIG. 9 is a plan view showing a configuration for detecting a secondary quantity.

FIG. 10 is a plan view showing a configuration for detecting the amount of grain flowing into a tank.

FIG. 11 is a graph showing the characteristics of the control for adjusting the opening degree of the chaff and the amount of Karin air

FIG. 12 is a graph showing a prediction range of the second quantity.

FIG. 13 is a flowchart of a control operation.

FIG. 14 is a flowchart of a control operation.

FIG. 15 is a flowchart of a control operation.

[Explanation of symbols]

 18 Karano 19 Swing sorting plate 20 First thing collection part 21 Second thing collection part H control means M1 Openness adjustment means M2 Air volume adjustment means S4 Second quantity detection means S5 Process quantity detection means VR1, VR2 Target value adjustment means

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroshi Ikeda 64 Ishizu-Kitacho, Sakai-shi, Osaka F-term in Kubota Sakai Works (reference) 2B095 AA01 AA07 AA12 BA21 BA35 CA02 CA09 CB15 EA02 GA02 GA03 GA04 GA06 GA09 GA11 GA17 GA18 GB08 GB09

Claims (3)

[Claims] 1. An oscillating sorting plate for performing drop-selection while transferring a supplied processing object to be sorted, and a Karamin for blowing a sorting air in a direction in which the oscillating sorting plate transfers the processing object, The first thing collection unit that collects the first thing that has leaked from the swing sorting plate, and the second thing collection unit that collects the second thing that has leaked from the swing sorting plate, A processing object amount detecting unit that is provided side by side in the processing object transfer direction and detects an amount of the processing object on the swing sorting plate; and a processing object amount on the swing sorting plate based on detection information of the processing object amount detecting unit. As the number is larger, the opening degree adjusting means for changing and adjusting the leakage opening degree of the swing selection plate is operated so that the leakage opening degree of the swing selection plate becomes the target opening degree on the large side, and As the amount of the processed material on the rocking sorter plate is larger, the air volume of the Karamin is larger than the target air volume. A control means for performing an adjustment control for operating an air flow adjusting means for changing and adjusting the air flow rate is provided, wherein the control means includes the target opening degree and the target air flow for the same value of the processing amount on the swing sorting plate. A threshing / sorting control device configured to change and set the target opening and the target air volume based on information of target value adjusting means for changing and adjusting the value of Second amount detecting means for detecting the amount of the second object to be processed is provided, and the control means sets the target opening to a large side in a state where the amount of the processed material on the swing sorting plate is small. When executing the adjustment control, if the amount of the second object detected by the second amount detecting means is larger than the amount predicted from the amount of the processed material, the target air flow is set to the lower side. Threshing sorting control device configured to change to Place. 2. An oscillating selection plate for performing drop-selection while transferring a processing object to be supplied to be supplied, and Karamin for blowing a separation wind in a processing object transfer direction of the oscillating selection plate, The first thing collection unit that collects the first thing that has leaked from the swing sorting plate, and the second thing collection unit that collects the second thing that has leaked from the swing sorting plate, A processing object amount detecting unit that is provided side by side in the processing object transfer direction and detects an amount of the processing object on the swing sorting plate; and a processing object amount on the swing sorting plate based on detection information of the processing object amount detecting unit. As the number is larger, the opening degree adjusting means for changing and adjusting the leakage opening degree of the swing selection plate is operated so that the leakage opening degree of the swing selection plate becomes the target opening degree on the large side, and As the amount of the processed material on the rocking sorter plate is larger, the air volume of the Karamin is larger than the target air volume. A control means for performing an adjustment control for operating an air flow adjusting means for changing and adjusting the air flow rate is provided, wherein the control means includes the target opening degree and the target air flow for the same value of the processing amount on the swing sorting plate. A threshing / sorting control device configured to change and set the target opening and the target air volume based on information of target value adjusting means for changing and adjusting the value of A second amount detecting means for detecting an amount of the second product to be provided is provided, wherein the control means is configured to execute the adjustment control while the amount of the processed material on the swing sorting plate is large. Threshing screening control configured to change the target opening to a larger side when the amount of the second product detected by the second amount detecting means is larger than the amount predicted from the processed material amount. apparatus. 3. An oscillating selection plate for performing drop-selection while transferring a supplied processing object to be sorted, and a karano for blowing a sifting wind in a direction in which the oscillating selection plate transfers the processing object, The first thing collection unit that collects the first thing that has leaked from the swing sorting plate, and the second thing collection unit that collects the second thing that has leaked from the swing sorting plate, A processing object amount detecting unit that is provided side by side in the processing object transfer direction and detects an amount of the processing object on the swing sorting plate; and a processing object amount on the swing sorting plate based on detection information of the processing object amount detecting unit. As the number is larger, the opening degree adjusting means for changing and adjusting the leakage opening degree of the swing selection plate is operated so that the leakage opening degree of the swing selection plate becomes the target opening degree on the large side, and As the amount of the processed material on the rocking sorter plate is larger, the air volume of the Karamin is larger than the target air volume. A control means for performing an adjustment control for operating an air flow adjusting means for changing and adjusting the air flow rate is provided, wherein the control means includes the target opening degree and the target air flow for the same value of the processing amount on the swing sorting plate. A threshing / sorting control device configured to change and set the target opening and the target air volume based on information of target value adjusting means for changing and adjusting the value of A second amount detecting means for detecting an amount of the second product to be provided, wherein the control means is configured to execute the adjustment control when the amount of the processed material on the swing sorting plate is small. If the amount of the second object detected by the second amount detecting means is smaller than the amount predicted from the processed material amount, the target opening is changed to a small side and the target air flow is changed to a large side. Threshing sorting control device configured to perform .