JPH0759453A - Threshing control device - Google Patents

Abstract

(57) [Summary] [Purpose] 3 due to an abnormal increase in the amount of processed material on the rocking sorting plate.
Problems such as an increase in number loss are appropriately eliminated without reducing the efficiency of the threshing device as a whole. [Structure] A sorting device B that sorts and processes a leaked substance from the handling room A, adjusting means M2 and M3 that adjusts the throughput of the sorting device B, and an oscillating sorting plate provided in the sorting device B. A sorting device is provided with a processed material amount detecting means S8 for detecting the amount of the leaked processed material on the sheet 14, and a transfer speed adjusting means M1 for adjusting the transfer speed of the processed processing material to the rear side in the handling room A. When the control means H that operates the adjusting means M2 and M3 so as to maintain the processing capacity of B in an appropriate state is based on the information of the processed material amount detection means S8, the amount of leaked processed material is greater than or equal to the set amount. First, the transfer speed adjusting means M1 is operated to increase the transfer speed of the processed material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sorting device for sorting a leaked material from a handling room while transferring it, an adjusting means for adjusting the throughput of the sorting device, and a throughput of the sorting device. The present invention relates to a threshing control device provided with control means for operating the adjusting means so as to maintain the proper state.

[0002]

2. Description of the Related Art In such a threshing control device, for example, a sorting device is composed of an oscillating sorting plate and a toumi, and a leakage opening degree (corresponding to a leakage rate) for a processed material on the oscillating sorting plate or The wind power of Tomi was appropriately changed according to the amount of grain culm supplied to the handling room, the amount of processed material on the rocking sorting plate, and the like, and was controlled so as to maintain the processing capacity of the sorting device in an appropriate state. Here, for example, in the case of a combine harvester, since the grain culm supply amount is proportional to the traveling speed, it is obtained from the vehicle speed value, or as the grain culm supply amount increases, the load on the threshing part increases and the engine load increases. , Grain culm supply is calculated based on engine load. Further, the amount of the processed material on the swing selection plate is detected by a layer thickness sensor or the like.

[0003]

In the above-mentioned prior art, in the range in which the amount of grain culm supplied to the handling room is not extremely large, no particular problem occurs, but for example, the amount of grain culm supplied increases,
If the amount of processed material on the rocking sorting plate increases abnormally, it cannot be processed properly even if the processing capacity of the sorting device is adjusted. There was a problem that the No. 3 loss transferred to and discharged to the outside increased, and the sorting efficiency (thresholding efficiency) decreased.

As a countermeasure for the above, in order to reduce the amount of the processed material on the rocking sorting plate, the retention time of the processed material in the handling chamber should be shortened to reduce the amount of the processed material leaked from the handling chamber. ,
It is conceivable to always increase the transfer speed of the processed food to the rear side, but in this case, if the transfer speed of the processed food in the handling chamber is too high, there is a problem that the unprocessed residue is increased.

The present invention has been made in view of the above circumstances, and an object thereof is to improve the entire threshing device to avoid problems such as an increase in No. 3 loss due to an abnormal increase in the amount of processed material on the rocking sorting plate. The problem is to eliminate it properly without reducing its efficiency.

[0006]

The threshing control device according to the present invention is characterized in that it comprises a processed product amount detecting means for detecting the amount of the leaked processed product on an oscillating sorting plate provided in the sorting device, and the handling device. And a transfer speed adjusting means for adjusting a transfer speed of the treated processed material in the room to the rear side, and the control means sets the amount of the leaked processed material based on the information of the processed material amount detecting means. When the amount is equal to or more than the amount, the transfer speed adjusting means is configured to be operated to increase the transfer speed of the treated material.

[0007]

According to the characterizing feature of the present invention, if the amount of the leaked processed material on the rocking sorting plate is less than the set amount, the transfer speed of the handled processed material to the rear side in the handling chamber is not increased. On the other hand, when the amount of the leaked processed material on the rocking sorting plate exceeds the set amount, the transfer speed of the handled material to the rear side in the handling room is adjusted so as to increase. The amount of the leaked processed substances on the dynamic sorting plate decreases, and the amount of the leaked processed substances on the rocking sorting plate decreases below the set amount. Then, in a state where the amount of the leaked processed material on the rocking sorting plate is equal to or less than the set amount, the processing capacity of the sorting device is adjusted and the sorting process is performed in an appropriate state. When the amount of the leaked processed material on the rocking sorting plate is equal to or more than the set amount, the amount of the processed material in the handling chamber is large and it is easy to be made into single particles, or the handled material is soft and the scrap It is considered that a large amount of particles are generated and the particles are likely to be single-grained, and the unprocessed residue is unlikely to occur even if the transfer speed of the processed material to the rear is increased.

[0008]

According to the present invention, therefore, the transfer speed of the handled material in the handling chamber to the rear side increases until the amount of the treated material on the rocking sorting plate exceeds the set amount. Since it is not carried out, unnecessary leftovers will not be generated due to the increase in transfer speed, and the amount of the leaked material on the rocking sorting plate will be the set amount or more, and the threshing efficiency will decrease due to the increase in No. 3 loss. When it occurs, since the transfer speed of the treated product is increased, the increase of No. 3 loss due to the abnormal increase in the amount of the processed product on the rocking sorting plate is avoided as much as possible while avoiding the decrease in the efficiency of the threshing device as a whole. It can be resolved appropriately.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows a side view of a combine to which the present invention is applied. This combine is a normal combine for harvesting rice, wheat, and soybeans, and an aircraft V equipped with a pair of left and right crawler traveling devices 1 is equipped with a cockpit 2, a threshing device 3, and the like. The mowing device 4 is provided so as to be able to move up and down. The cutting device 4 includes a weeding tool 5, a scraping device 6,
It is provided with a cutting blade 7, an auger 8 for collecting the cut crops in the central portion in the lateral direction of the machine body, and a conveyor 9 for conveying the collected crops to the threshing device 3.

As shown in FIG. 5, the threshing device 3 includes a handling drum 10 and a catching net 1 which rotate around the longitudinal axis of the machine body V.
1. A handling room A including 1 and a sorting device B that performs a sorting process (selects and collects grains from the leaking treated product) while transferring the leaked processed product from the handling chamber A to the rear of the machine body. Crop (grain culm) such as rice, wheat, soybean, which is cut by the reaping device 4 and conveyed to the threshing device 3 by the auger 8 and the conveyor 9,
It is supplied to the handling room A and threshed by the rotation of the handling barrel 10.
That is, threshing is performed while being transferred to the rear of the machine by the handling teeth spirally provided around the handling cylinder 10, grains and fine straw wastes leak from the receiving net 11, and the rest of the processed products are received by the receiving net. It is discharged from the rear end of 11.

As shown in FIGS. 3 to 5, on the inner surface of the ceiling cover 12 of the handling room A, the transfer of the processed material to the rear is promoted.
Alternatively, by controlling the retention time of the treated material in the handling chamber, the dust delivery valve 1 for optimizing the threshing condition
3 is provided. Further, there is also provided a grain culm sensing switch S1 which outputs an ON signal when the grain culm is supplied to the handling room A and outputs an OFF signal when the grain culm is not supplied.

The dust-sending valve 13 comprises a plurality of plate-shaped members arranged at predetermined intervals in the direction of the axis of rotation of the handling cylinder. Each plate-shaped member is pivotally attached to the ceiling cover 12 so as to be rotatable around a vertical axis, and link mechanisms 13a and 13b provided outside the ceiling cover 12 maintain all plate-shaped members in a parallel state. While rotating, they are configured to rotate simultaneously.

That is, the link 1 which rotates together with each plate member
3a is pivotally connected by a single link 13b, and is configured so that the rotation angle of each plate member (the opening degree of the dust sending valve 13) can be simultaneously changed within a predetermined range by the dust sending valve motor M1. . The dust feed valve motor M1 is driven in the forward and reverse directions by the control means described later. Further, the opening of the dust delivery valve 13 (hereinafter,
A potentiometer-type dust valve opening sensor S2 for detecting the dust valve opening) is provided.

The opening adjustment range of the dust delivery valve 13 is from the position (+ 20 °) shown by the broken line in FIG. 4 to the position (-1) shown by the chain double-dashed line.
It is regulated by 0 °). The position indicated by the broken line is the fully opened state, and in this state, the backward transfer of the processed material is most promoted. On the contrary, in the fully closed state shown by the chain double-dashed line, the backward transfer of the processed material is most suppressed. That is, the dust feed valve motor M1 constitutes a transfer speed adjusting means for adjusting the transfer speed of the treated food (grains) to the rear side in the handling chamber A.

As shown in FIG. 5, the sorting apparatus B includes a swing sorting plate 14 and a toumi 15. The processed substances that have leaked from the handling chamber A and accumulated on the rocking sorting plate 14 are gravity-sorted while being transferred to the rear by rocking, and fine straw debris and the like are blown off by the sorting wind from the tomi 15. A Glen pan 16 is provided at the front part of the swing selection plate 14, and chaff sheaves 17 and 18 are provided behind it. Below the chaff sheave 17 on the front side, a grain sheave 19 is provided. Front chaff sheave 17 and Glen sieve 1
The grain that leaked 9 is collected from the first port 20 and conveyed by a bucket conveyor (not shown) to the grain tank 2
1 (see FIG. 2). In addition, the mixture of the grain with branch shoots, straw waste, and the like, which has leaked through the chaff sheave 18 on the rear side and is collected from the second port 22, is reprocessed by a reprocessing mechanism (not shown), and then on the screw conveyor 23. Swing selection plate 14
Is reduced to.

The leakage opening of the front chaff sheave 17 (hereinafter referred to as the chaff opening) is configured so that it can be changed and adjusted as follows. As shown in FIG. 6, a plurality of plate-shaped members 17a are provided at predetermined intervals in the machine front-rear direction, and each plate-shaped member 17a is rotatably pivoted about the left-right axis and has a lower end portion formed by a link 25. Is pivotally connected to. Therefore,
When the link 25 is moved in the front-back direction, each plate member 17 is moved.
a rotates simultaneously, and each plate-shaped member 1 corresponding to the chaff opening degree
The adjacent distance t of 7a changes.

The chaff opening is adjusted by rotating the chaff motor M2 forward and backward. Forward / reverse rotation of the chaff motor M2 is converted into forward / backward movement of the link 25 by the gear type linkage mechanism 26, the swing arm 27, and the wire 28, and as a result, the chaff opening degree is changed as described above. It should be noted that a potentiometer (hereinafter referred to as a chaff opening sensor) S3 for detecting the chaff opening from the rotation angle of the swing arm 27 S3.
Is provided.

The wind force of the sorting wind from the toumi 15 (hereinafter referred to as the toumi wind force) is changed by changing the rotation speed of the toumi 15 (hereinafter referred to as the toumi rotation speed).
As shown in FIG. 7, the input pulley 15a that rotationally drives the toumi 15 is formed of a split pulley, and the effective diameter of the input pulley 15a is changed by the forward / reverse driving of the toumi motor M3. That is, when the toumi motor M3 is driven in the normal direction, the gear-type linkage mechanism 2
9. The arm 32 is pulled through the swing arm 30, the wire 31, and the split pulley 1 by a cam mechanism (not shown).
The distance of 5a increases. As a result, the effective diameter of the portion in contact with the V-belt 23 becomes smaller, the toumi rotation speed becomes higher, and the toumi wind force becomes stronger. When the TOUMI motor M3 is rotated in the reverse direction, each part moves in the opposite direction, and the TOMI wind force becomes weak. A toumi rotation speed sensor S4 for detecting the rotation speed of the toumi 15 is provided.

If the chaff opening is increased, the processed material on the rocking sorting plate 14 quickly leaks and is collected.
Increasing the chaff opening corresponds to increasing the processing capacity of the sorting apparatus B. At this time, since the sorting accuracy is generally deteriorated by increasing the chaff opening,
In order to compensate for this, the Tumi wind force generated by the Tumi 15 is increased. Conversely, if the chaff opening is made smaller, the leakage speed of the processed material on the rocking sorting plate 14 becomes slower. Therefore, making the chaff opening smaller corresponds to making the throughput of the sorting apparatus B smaller. . At this time, the Toumi wind force is usually reduced. From the above, the chaff motor M2 and the toumi motor M3 constitute the adjusting means for adjusting the processing capacity of the sorting apparatus B.

As shown in FIG. 1, the control means H constituted by using a microcomputer is used to change and adjust the chaff opening degree and the toumi wind force, and the dust adjusting valve opening degree. Through the chaff motor M2,
This is performed by controlling the drive of the TOUMI motor M3 or the dust feed valve motor M1. The control means H outputs its output O
1, O2 drives the chaff motor M2, outputs O3, O4 drive the toumi motor M3, and outputs O5, O6 drive the dust feed valve motor M1.

For example, when the output O1 is turned on (L level) and the output O2 is turned off (H level), the chaff motor M2 is turned on.
When the output O1 is turned off and the output O2 is turned on, the chaff motor M2 is driven in reverse. When outputs O1 and O2 are both off or on, chaff motor M
2 is stopped. The same applies to driving the toumi motor M3 with the outputs O3 and O4 and driving the dust feed valve motor M1 with the outputs O5 and O6.

In the figure, reference numerals 34, 35 and 36 denote changeover switches with a neutral position for manually increasing / decreasing the chaff opening, the toumi rotation speed, or the dust delivery valve opening. However, the change-over switch 35 for changing the increase / decrease in the toumi rotation speed becomes effective when a predetermined condition is satisfied. That is, the changeover switch 35
Is connected to the output O7 of the control means H, and the output O7 is turned on (L level) only under the condition that the threshing device is operating and the engine speed is equal to or higher than a predetermined value.

Further, 37 to 42 are limit switches which are turned off when the chaff opening, the toumi rotation speed, or the dust sending valve opening reaches the limit of the adjustment range. For example, when the chaff opening is fully opened, the limit switch 37 is turned off, and the normal rotation drive of the chaff motor M2 is stopped. In this state, reverse rotation drive, that is, only the closing operation of the chaff sheave is possible. The same applies to the operation of the other limit switches 38 to 42.

As shown in FIG. 1, the control means H includes various sensors in addition to the above-described grain / culm sensing switch S1, dust-feeding valve opening sensor S2, chaff opening sensor S3, and toumi rotation speed sensor S4. , Information such as switches has been entered. The threshing clutch switch S5 is a switch that is turned on when the threshing clutch is in the connected state. This signal is used as one of the starting conditions for the automatic sorting control described later.

The engine speed sensor S6 is an electromagnetic pickup which generates a sine wave having a frequency proportional to the speed of rotation of a wheel gear fixed to the rotary shaft of the engine. Detect load. The vehicle speed sensor S7 is provided in the mission unit and generates a signal of a pulse number proportional to the rotation number of the drive wheels of the crawler traveling device 1. Since the cutting amount per unit time, that is, the grain culm supply amount changes in proportion to the vehicle speed (running speed), the vehicle speed sensor S7 serves as means for detecting the grain culm supply amount to the handling room A in the automatic sorting control. Used. Since the engine speed sensor S6 also indirectly detects the grain culm supply amount to the handling room A by detecting the threshing load, it is used as a grain culm supply amount detecting means.

As shown in FIGS. 5 and 8, the swing selection plate 1
The layer thickness sensor S8 for detecting the layer thickness of the leaked material on
It is provided above the chaff sheave 17. The layer thickness sensor S8 includes two plate-shaped members T1 and T2 that are oscillatingly hung around a horizontal axis and have different lower end positions, and the plate-shaped member T.
The potentiometer PM is configured to convert a rotation angle of T1, T2 to the rear (direction of conveying a processed object) into a resistance value. When the layer thickness of the object to be processed is small, that is, when the amount of the object to be processed is small, the plate-shaped member T1 having a lower lower end position contacts the object to be processed and rotates rearward to further increase the layer thickness. That is, when the amount of the processed material increases, the plate-shaped member T2 whose lower end position is higher contacts the processed material and rotates rearward. With such a configuration, the larger the layer thickness of the processed material, the larger the rotation angle of the plate-shaped members T1 and T2. Therefore, the layer thickness (amount) of the processed material is calculated from the resistance value (voltage value corresponding to) of the potentiometer PM. I understand. Therefore, the layer thickness sensor S8 constitutes a processed material amount detecting means for detecting the amount of the leaked processed material on the swing selection plate 14.

The sorting auto switch 43 is an illuminated push button switch for switching whether or not to perform automatic sorting control. If the switch is pressed, the automatic selection control is selected and the illumination lamp is turned on. The crop switch 44 is a rotary changeover switch for switching crops to be cut (rice, wheat, soybean). Also, chaff adjustment VR45,
The toumi adjustment VR 46 and the dust delivery valve adjustment VR 47 are variable resistors for finely adjusting the target values for the automatic control of the chaff opening, the toumi rotation speed, and the dust delivery valve opening according to conditions such as the wetness of the crop. .

The control means H is configured to operate the chaff motor M2 and the toumi motor M3 on the basis of the detection information of the various sensors and switches so as to maintain the processing capacity of the sorting apparatus B in an appropriate state. Has been done. In addition, the control means H increases the transfer speed of the dust handling valve motor M1 by handling the dust handling valve motor M1 based on the information from the layer thickness sensor S8 when the amount of the leak handling substance is equal to or more than a set amount. It is configured to actuate to the side. Hereinafter, a specific configuration of the sorting control performed by the control means H, that is, the control of the chaff opening, the toumi rotation speed, and the dust-feeding valve opening will be described with reference to the flowcharts of FIGS. 9 and 10.

First, the starting condition of the automatic sorting control is checked. That is, as shown in the process (a) and thereafter, it is checked whether or not the sorting auto switch 43 is on, the threshing clutch switch S5 is on, and the detection value of the toumi rotation speed sensor S4 is 500 rpm or more. If all the conditions are satisfied, the process proceeds to the sorting automatic control after the process (b), but if any of the conditions is not satisfied, the chaff opening, the toumi rotation speed, and the dust transfer as shown in the process (c) and after. The change output of the valve opening is all stopped, that is, the chaff motor M2, the toumi motor M3, and the dust transfer valve motor M1 are all stopped to finish.

The automatic selection control after the process (b) is divided into three modes depending on the switching position of the crop switch 44. That is, the rice mode after treatment (d), the wheat mode after treatment (e), and the soybean mode after treatment (f).

First, in the rice mode after processing (d),
The signal of the grain culm sensing switch S1 is checked. When it is on, that is, when the grain culm is being supplied to the handling room A, the chaff target value (the target value of the chaff opening), the toumi target value (the target value of the toumi rotation speed) ), And the target value of the dust delivery valve (the target value of the opening of the dust delivery valve) are set. In the subsequent output processing, each of the motors M2 and M is adjusted so that the chaff opening degree, the toumi rotation speed, and the dust sending valve opening degree become the respective target values described above.
3, M1 will be driven.

To explain the setting of the chaff target value, first, the chaff adjustment VR45 will be described with reference to FIG.
The reference target value (T) according to is set. The reference target value (T) is set by switching the crop switch 44, and is a standard set value (2.5 that is predetermined according to the crop).
V) plus a correction value (± 1 V) by the chaff adjustment VR45. Next, the first correction value (L) due to the engine load is obtained based on FIG. 11 (b). The load is obtained from the detection value of the engine speed detection sensor S6, and here, the load is the amount of decrease in the engine speed with respect to the engine speed (reference speed) when the vehicle speed is less than 0.1 m / s. Since this load changes according to the amount of grain culm supplied to the handling room A, the engine speed detection sensor S6 is used as a grain culm supply amount detecting means.
Next, the second correction value (C) based on the detection value of the layer thickness sensor S8 is obtained based on FIG. 11 (c). After all, the reference target value (T) plus the first and second correction values (T + L +
C) is the chaff target value.

The same applies to setting the toumi target value. A reference target value (T) by the toe adjustment VR 46 is set based on FIG. 12A, and a first correction value (L) according to the load obtained based on FIG. 12B and FIG.
The sum (T + L + C) to which the second correction value (C) based on the detection value of the layer thickness sensor S8 obtained based on (c) is added is the toumi target value.

In the case of the dust delivery valve target value, the reference target value (T) by the dust delivery valve adjustment VR 47 is set on the basis of FIG. 13 (a), and the reference target value (T) is set on the basis of the load obtained on the basis of FIG. 13 (b). A value (T + L + C) obtained by adding the first correction value (L) and the second correction value (C) obtained by the detection value of the layer thickness sensor S8 obtained based on FIG. Here, the second correction value (C) is 0 when the detection value of the layer thickness sensor S8 is less than the set value (3V), and when it becomes more than this, a predetermined amount (6 °) on the open side, that is, the processed object. It is set to operate on the transfer speed increasing side.

When the grain culm sensing switch S1 is off in the process (d) (to be precise, when the off state continues for 2 seconds or more), it is changed to the off state as shown in the process (h) and thereafter. Check if 5 seconds have passed. If it has not elapsed, the detection value of the chaff opening detection sensor S3 when the grain culm detection switch S1 is turned off is maintained as the chaff target value, and after 5 seconds, the chaff target value is 1.0 volt (chaff opening). (Corresponding to a fully closed degree)). This is because even if the grain culm is no longer supplied to the handling room A, the chaff opening is maintained as it is for a while and the chaff is closed after 5 seconds.
In addition, the target value of the toumi is 10 from the value detected by the toumi rotation speed sensor S4 when the grain culm sensing switch S1 is turned off.
Set 0 rpm lower rotation speed.

Also in the wheat mode after the process (e), the signal of the grain culm sensing switch S1 is first checked, and when it is off, the process branches to the above process (h). When it is on, the chaff target value, the toumi target value, and the dust delivery valve target value are set as shown in the processing (i) and subsequent steps.

Similar to the rice mode, the reference target value (T) by the chaff adjustment VR 45 obtained based on FIG. 14 (a).
In addition, the first correction value (L) based on the vehicle speed obtained based on FIG. 14B and the layer thickness sensor S obtained based on FIG. 14C.
The second correction value (C) based on the detection value of 8 is added (T +
Let L + C) be the chaff target value. However, unlike the rice mode, the first correction value is changed according to the vehicle speed instead of the load.
That is, in the wheat mode (and soybean mode), the vehicle speed sensor S7 corresponds to the grain culm supply amount detecting means. Further, the toumi target value is determined only by the toumi adjustment VR 46 as shown in FIG. 15, and is not corrected. The target value of the dust delivery valve is shown in FIG.
Based on (a), the reference target value (T) by the dust control valve adjustment VR 47 is set, and the second correction value ((T)) based on the detection value of the layer thickness sensor S8 similar to the rice mode shown in FIG. The value (T + C) to which C) is added becomes the dust delivery valve target value.

In the soybean mode after the treatment (f),
Regardless of the signal from the grain culm detection switch S1, the chaff target value, the target thyme target value, and the dust delivery valve target value are set in the same manner as the processing (ri) and subsequent steps in the wheat mode. That is, FIG.
The reference target value (T) by the chaff adjustment VR 45 obtained based on FIG. 7 (a), the correction value (L) depending on the vehicle speed obtained based on FIG. 17 (b), and the layer obtained based on FIG. 17 (c). The value (T + L + C) to which the correction value (C) based on the detection value of the thickness sensor S8 is added is set as the chaff target value. Further, the toumi target value by the toumi adjustment VR 46 is set based on FIG. As the dust delivery valve target value, the reference target value (T) by the dust delivery valve adjustment VR47 is set based on FIG. 19 (a), and the reference target value (T) based on the detection value of the layer thickness sensor S8 shown in FIG. 19 (b) is set. 2 The value (T + C) to which the correction value (C) is added becomes the dust-feed valve target value.

Based on the chaff target value, toumi target value, and dust delivery valve target value obtained for each mode as described above, the chaff opening change output (the forward / reverse rotation of the chaff motor M2) is actually processed after the processing (nu). ), Toumi rotation speed change output (toumi motor M3 forward / reverse rotation), and dust delivery valve opening change output (dust delivery motor M1 forward / reverse rotation).

First, after the processing (nu), the chaff target value and
The difference (chaff deviation) from the current chaff opening (chaff current value) detected by the chaff opening sensor S3 is obtained, and the chaff motor M2 is operated based on this chaff deviation. When the chaff deviation is −0.12 to +0.12 volts, the chaff motor M1 is not driven as a dead zone (chaf opening change output stop). Chaff deviation +0.12
When the voltage is equal to or higher than the bolt, the "chuff opening output" is executed, and the chaff motor M2 is driven at high speed in the direction of increasing the chaff opening. When the chaff deviation is less than -0.12 volts,
"Chaff closed output" is executed, 120ms on / 188
By the duty driving of 0 ms off, the chaff motor M2 is driven at a low speed in the direction of decreasing the chaff opening degree.

Next, after processing (L)
The difference (TOUMI deviation) from the present TOUMI rotation speed (TOMI current value) detected by the TOUMI rotation speed sensor S4 is obtained, and the TOUMI motor M3 is controlled based on this difference. As shown in the figure, depending on the value of Toumi deviation, 5
Branch into the street. When the toumi deviation is -15 to +15 rpm, the toumi motor M3 is not driven as a dead zone (toumi rotation speed change output stop). Toumi deviation is + 15r
When it is pm or more, the toumi motor M3 is driven in the direction of increasing the toumi rotation speed, but is driven at a low speed up to +50 rpm, and is driven at a higher speed than that. Toumi deviation is -15r
When it is pm or less, the toumi motor M3 is driven in the direction of decreasing the toumi rotation speed, but it is driven at a low speed up to −50 rpm and is driven at a high speed below that.

Similarly, the difference (dust transfer) between the target value of the dust transfer valve and the current dust transfer valve opening (current value of the dust transfer valve) detected by the dust transfer valve opening sensor S2 after the processing (2). The valve deviation) is obtained, and the dust sending valve motor M1 is controlled based on this dust sending valve deviation. When the deviation of the dust sending valve is −0.02 to +0.02 volts, the dust sending valve motor M1 is not driven as the dead zone (dust output opening change output stop). Dust valve deviation is +0.0
When the voltage is 2 volts or more, the "dust valve open output" is executed,
The dust delivery valve motor M1 is driven at high speed in the direction of increasing the opening of the dust delivery valve. When the deviation of the dust delivery valve is −0.02 V or less, the “dust delivery valve close output” is executed, and the dust delivery valve motor M1 is driven at high speed in the direction of decreasing the opening of the dust delivery valve.

Other examples will be listed below. The configuration for changing and adjusting the leakage opening of the rocking sorting plate so as to adjust the processing capacity of the sorting device is not limited to changing the chaff opening as in the above-described embodiment. For example, instead of a chaff sheave, a mesh-shaped or slit-shaped opening is shielded by a shield plate called a slide Glen pan, and the slide Glen pan is slid by an electric motor (corresponding to an adjusting means) or the like to shield the opening. It is configured to change the leak opening by changing the area, or
The processing speed may be changed by changing the rocking speed of the rocking sorting plate. Further, in the above embodiment, in order to adjust the processing capacity of the sorting device, the toumi rotation speed was changed in accordance with the change of the leakage opening of the rocking sorting plate, but the toumi rotation speed was not changed. May be maintained at a constant value.

In the above embodiment, the processed material amount detecting means is composed of the layer thickness sensor S8 which detects the layer thickness (quantity) of the processed material from the rotation angle of the sensor bar which rotates in contact with the processed material. Other than this, for example, a non-contact type detection means such as a photoelectric sensor may be used. It is also possible to install layer thickness sensors or the like at a plurality of locations on the swing selection plate and average the detection values of these sensors to determine the amount of processed material.

In the above embodiment, in order to adjust the transfer speed, the opening of the dust delivery valve provided in the upper portion of the handling chamber A is changed, but the present invention is not limited to this.

In the above-described embodiment, when the amount of the leakage processing material on the rocking sorting plate is equal to or more than the set amount, the transfer speed adjusting means (the dust sending valve motor M1) is operated to set the opening degree of the dust sending valve. Although the configuration is such that the transfer speed is increased by operating to the angle (6 °) open side, the specific configuration for increasing the transfer speed is not limited to this. For example, you may open up to the upper limit opening (15 ° in the case of rice) for a certain period of time,
Further, the operation amount to the increasing side may be changed depending on the type of crop. Further, the set amount with respect to the amount of the leakage treated material which is the judgment criterion is not limited to the example (the amount detected by the layer thickness sensor S8 corresponds to 3V), and can be changed appropriately.

The present invention can be widely applied not only to combine harvesters but also to threshing devices such as harvesters.

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 control device according to an embodiment of the present invention.

FIG. 2 is a side view of the combine.

FIG. 3 is a top cross-sectional view of the handling room seen from the front.

FIG. 4 is a schematic view showing the structure of a transfer speed adjusting means.

FIG. 5: Side perspective view of threshing device

FIG. 6 is a diagram showing a structure for changing and adjusting the chaff opening.

FIG. 7 is a view showing a structure for changing and adjusting the toumi rotation speed.

FIG. 8 is a schematic side view of a processed material amount detecting means.

FIG. 9: Flow chart of sorting control

FIG. 10: Flow chart of sorting control

FIG. 11 is a graph for obtaining a chaff target value in the rice mode.

FIG. 12 is a graph for determining a target value for rice in the rice mode.

FIG. 13 is a graph for obtaining the target value of the dust delivery valve in rice mode

FIG. 14 is a graph for obtaining a chaff target value in the wheat mode.

FIG. 15 is a graph for obtaining a target value of tomi in the wheat mode.

FIG. 16 is a graph for obtaining the target value of the dust sending valve in the wheat mode.

FIG. 17 is a graph for obtaining a chaff target value in soybean mode.

FIG. 18 is a graph for obtaining a target value of tomi in soybean mode.

FIG. 19 is a graph for obtaining the target value of the dust delivery valve in soybean mode.

[Explanation of symbols]

 A handling room B sorting device M2, M3 adjusting means H controlling means 14 rocking sorting plate S8 processed material amount detecting means M1 transfer speed adjusting means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yuji Tanaka 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd.

Claims (1)

[Claims] 1. A sorting device (B) for sorting and processing a leaked substance from the handling room (A), and adjusting means (M2, M3) for adjusting the throughput of the sorting device (B).
And a control means (H) for operating the adjusting means (M2, M3) so as to maintain the processing capacity of the sorting device (B) in an appropriate state. Treated material amount detecting means (S8) for detecting the amount of the leaked processed material on the swing selection plate (14) provided in the apparatus (B).
And a transfer speed adjusting means (M1) for adjusting the transfer speed of the handled material to the rear side in the handling room (A), and the control means (H) is the treated material amount detecting means ( S8)
Based on the information of the above, the threshing is configured to operate the transfer speed adjusting means (M1) to increase the transfer speed of the handled food when the amount of the leaked food is equal to or more than a set amount. Control device.