JPH02174609A - Controlling apparatus for cleaning of thresher - Google Patents

Abstract

PURPOSE:To efficiently and surely discharge grains, straw dust, etc., by automatically varying the gap of a chaff sieve with a specific period and, at the same time, adjusting the air blowing rate of a winnower according to the need. CONSTITUTION:Treated materials spilled out of a threshing chamber A of a thresher 2 selected by a vibration selection plate 15 and air is blown by a winnower 14. The selection plate 15 is provided with belt members (a, a') placed in parallel in the transfer direction of the treated material. The winnower 14 is provided with an actuator for varying and controlling the rate of air blow. Both actuators are linked with a controlling means and operated in prescribed states.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is provided with a swinging sorting plate for sorting out leaked material from a handling chamber of a threshing device, and a comb for blowing sorting air. The oscillating sorting plate includes a chaff sieve made up of strip-like members arranged in parallel in the direction of transfer of the processed material, and a chaff sieve for adjusting the interval formed between adjacent strip-like members. An actuator is provided, an actuator for adjusting the amount of air blown is provided to change and adjust the amount of air blown to the comb, and a cleaning control means is provided for operating the actuator for adjusting the interval and the actuator for the 11 air blowing sections. The present invention relates to a control device for cleaning a threshing device.

[Conventional technology]

With this type of threshing equipment, when changing setups due to differences in the variety of the target crops, it is necessary to discharge the grains and straw debris that have accumulated inside the equipment, so the threshing equipment is operated idly. I was letting it happen. Incidentally, during idle operation, both the interval between the chaff sheaves and the amount of air blown by the comb are manually adjusted to a large state.

[Problem to be solved by the invention]

When the threshing device is operated idly as described above, there is the trouble of having to manually adjust both the chaff sieve spacing and the corn air blower l.

Also, since the chaff sieve spacing is constant,
There was a drawback that it was difficult to remove straw waste etc. adhering to the chaff sieve.

An object of the present invention is to eliminate the above-mentioned conventional drawbacks.

[Means to solve the problem]

In order to achieve this object, the cleaning control device for a thresher according to the present invention operates the spacing adjustment actuator so that the spacing increases and decreases at a set cycle, and It is characterized in that the actuator for adjusting the amount of air blown is configured to operate so that the amount of air blown from the toe is in a set state.

Further, it is preferable that the setting state of the amount of air blown is set such that a state where the amount of air blown is large and a state where the amount of air blown is small are repeated at a set cycle.

[For production]

A state in which the chaff sieve interval is large and small is repeated at a certain period. As a result, grains, straw waste, etc. remaining in the threshing device are efficiently discharged to the outside.

In this case, it is more effective to set the amount of air to be blown so that the amount of air is large, or to repeat a state where the amount of air is large and a state where it is small at a certain period.

〔Effect of the invention〕

The present invention provides the following effects.

In the cleaning control device for a threshing machine according to claim 1,
Since the chaff sieve spacing is automatically changed at certain intervals, grains, straw waste, etc. accumulated in the threshing device can be discharged to the outside without the need for troublesome operations. In addition, straw waste adhering to the chaff sieve can also be efficiently discharged.

In the cleaning control device for a threshing machine according to claim 2,
By repeating the state in which the amount of air blown by the corn is increased and decreased, the discharge of grains, straw waste, etc. becomes more efficient and reliable.

〔Example〕

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

As shown in FIG. 6, a threshing device (2) is mounted on the upper part of a machine body (v) equipped with a crawler traveling device (1), and a reaping section (3) is attached to the front part of the machine body m. and the combine is configured.

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

As shown in FIG. 7, the output of the engine (ε) mounted on the machine body (V) is transmitted to the threshing device (2) via a belt tension type threshing clutch (7), and
The power is transmitted to the traveling transmission (9) of the crawler traveling device (1) via a belt tension type traveling latch (8).

Further, a part of the output transmitted to the traveling transmission (9) is transmitted to the reaping section (3) via a belt tension type reaping latch (10).

However, although not described in detail, the forward/reverse switching of the vehicle (V) and the vehicle speed are artificially adjusted by manually operating the traveling transmission (9).

As shown in FIG. 8, the threshing device (2) includes a handling cylinder (1
1), a feed chain (12) that pinches and conveys the grain culms in a sideways posture supplied from the reaping section (3), a cross-flow fan (13) for dust removal, and a grain culm (
14) and a swinging sorting plate (15) (B)
, a first port for collecting grains (16), and a second port for collecting grains (17) for returning the sorted and collected second material to the handling room (A). .

At the bottom of the handling room (A), there is a receiving net (18) for grain sorting.
is provided, and at the terminal end of the handling chamber (A), the handling chamber (A) is provided with a
A) A discharge port (19) is opened to discharge the processed material remaining in the chamber.

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

The oscillating sorting plate (15) includes a grain pan (20) located above the toumi (14), and a grain pan (20) located above the grain pan (14).
a chaff sieve (21) located following the chaff sieve (21), a stroke rack (22) located following the chaff sieve (21), an auxiliary grain pan (23) located below the starting end side of the chaff sieve 1), and Glensieve (
24), which form a pair of left and right side plates (25).
installed between.

In addition, in FIG. 8, (S,) indicates the feed chain (1
2) a sensor for detecting a supply amount as a grain culm supply amount detection means for detecting the grain culm supply 1 (Q) to the handling room (A) based on the thickness (D) of the grain culm layer conveyed in step 2); (26)
(27) is a grain pan for the discharge port disposed opposite to the discharge port (19), and (27) is a plurality of rod members arranged in the horizontal direction, which are located following the grain pan (26); The grain pan (26) and the rod material (27) are oscillated together with the oscillating sorting plate (15). Further, (28) is a rotating body with blades that acts on the processed material on the rod material (27).

The above-mentioned supply detection sensor (S1) will be explained as follows.
As mentioned above, since the threshing device (2) is driven by the output of the engine (E) before shifting, the grain culm conveyance speed by the feed chain (12) is equal to the reaping speed. Regardless of the speed, the speed is approximately constant. Therefore,
As the vehicle speed, that is, the reaping speed increases, the amount of reaped husk increases, and as a result, the feed chain (
The thickness (D) of the grain culm layer transported in step 12) increases.

In other words, the thickness (D) of the grain culm layer conveyed by the feed chain (12) corresponds to the grain culm supply 1 (Q) supplied to the handling room (^).

To explain further, as shown in FIG.
2B) is provided along the conveyance direction in a state where it is elastically biased downward. The supply amount detection sensor (S,) for detecting the amount of vertical displacement of the transport rail (12A) using a potentiometer is attached to the transport start end side of the transport rail (12A).
It is configured to detect the amount of vertical displacement in A) as the thickness (0) of the grain culm layer.

The sorting device (B) includes the chaff sieve (21).
While adjusting the interval (S) of the
By adjusting the flow rate of the sorting air according to step 4), the sorting state can be freely adjusted depending on the amount of leaked material from the handling chamber (A).

First, a configuration for adjusting the spacing (S) of the chaff sheaves (21) will be explained.

As shown in FIGS. 10 to 12, the chaff sieve (21) includes strip-like members (
It is composed of strip members (a) and (a'), and the distance (S) formed between adjacent strip members (a) and (a') can be freely changed and adjusted.

To explain, a plurality of strip-shaped members (a).

The upper end of one of the band plate-like members (ao) is connected to the fulcrum shaft (29) passing through the pair of left and right side plates (25).
), and the long holes (
A connecting bottle (30) passing through b) is fixed.

A pair of left and right links (31) are provided externally fitted onto each of the fulcrum shaft (29) and the connection pin (30), and an operating arm (32) is provided on one of the pair of left and right links (31).
) is attached.

Other strip-shaped members (a') other than the above-mentioned - two strip-shaped members (a')
a) is attached to the side plate (25) using a U-shaped mounting bracket (33).

In other words, the upper end shaft portion (33a) of the U-shaped mounting bracket (33) is fixed through the side plate (25),
In addition, the shaft portion (33b) on the lower end side is configured to penetrate through the elongated hole (b) formed in the side plate (25). Then, each of the lower end portions of the strip-like member (a) is connected to the lower shaft portion (33) of the mounting bracket (33).
b) is fitted externally.

The shaft portions (33b) on the lower end side of the connecting bottle (30) and the plurality of mounting fittings (33) are connected by a connecting plate (34), so that each of the band plate-like members (a), (a' )of,
The spacing (S) is configured to be changed and adjusted by swinging together using their upper end sides as a fulcrum.

An electric motor (M1) for adjusting the chaff for changing and adjusting the spacing (S) is provided on the fixed frame side of the threshing device (2), and the chaff adjustment electric motor (M1) is provided on the fixed frame side of the threshing device (2), and the chaff adjustment electric motor (M1) is provided on the fixed frame side of the threshing device (2). A biasing spring (35) is attached to the operating arm (32).
), and its operating arm (32) and a top member (37) that engages with a screw shaft (36) driven in forward and reverse directions by the electric motor (M1) are connected to each other by a release wire (38). Linked together.

In FIG. 10, (S2) is a chaff opening detection potentiometer that detects the adjusted state of the interval (S) as a change in the position of the top member (37), and is a potentiometer for detecting the opening of the chaff, which detects the adjustment state of the interval (S) as a change in the position of the top member (37). An end portion is connected to the top member (37).

To explain the configuration for adjusting the strength of the screening air volume by the toumi (14), the toumi (14) is as follows.
It is configured so that the number of rotations can be changed to change and adjust the air volume for sorting.

To explain, as shown in Figures 13 and 14,
A man-cub attached to the rotating shaft (14A) of the above-mentioned Toumi (14)! J (41) is a pair of left and right boob parts (4
1a) and (41b), and the rotation speed of the handle (14) is changed and adjusted by changing and adjusting the interval between the left and right pair of boob portions (41a) and (41b). The expression changing device (42) is configured.

The - side (41, a) of the pair of left and right pulley portions (41a) and (41b) is fixed to the rotating shaft (14A), and the other (41b) slides in the axial direction of the rotating shaft (14A). It is attached to the outside so that it can move freely.

However, the other pulley part (41b) on the sliding side is connected to the one pulley part (41a) on the stationary side by an attached connecting pin (45), and both the pulley parts (41a),
(41b) rotates integrally, and the interval between them can be changed and adjusted.

To explain the configuration for changing and adjusting the interval between the pulley portions (41a) and (41b), a first cam is attached to the boss portion of the sliding pulley portion (41b) using a bearing (46). The first cam forming member (47) is attached to the first cam forming member (47) and the second cam forming member (48) attached to the fixed frame side of the threshing device (2).
), both pulley portions (41a), (
Cam protrusion (47a>, for moving 41b) far and near;
(48a) is formed (see FIG. 15).

An electric motor (M2) for adjusting the wind jar is attached to the fixed frame side of the threshing device (2), and an operating arm (49) for speed change operation is attached to the first cam forming member (47). and its operation arm (49) and the electric morph (M2
) is interlocked with a screw shaft (50) which is driven forward and backward at The first cam forming member (47) is configured to be rotated to change and adjust the rotational speed of the turn (14).

In FIG. 13, (43) is a transmission pulley that transmits the output of the engine (E) to the input pulley (41);
4) is a tension boob IJ, and (S3) is a tow constant air volume detection potentiometer that detects the speed change state, that is, the selected air volume as a change in the position of the top member (52), and the free end of the operating lever (53) is , the piece member (52)
is connected to.

Next, the electric motor (M1) for adjusting the interval of the chaff sieve (21) and the electric motor (M2) for adjusting the sorting air volume of the comb (14) are operated, and the sorting device (B
) is explained below.

As shown in FIG. 1, a control device (H) using a microcomputer is provided, and the control device (H) is used to select whether to control the sorting device in automatic mode, manual mode, or cleaning mode. selection switch (Sw),
A threshing switch (SO) that is turned ON in conjunction with the engaging operation of the threshing clutch (7), the supply pre-detection sensor (S,
), the chaff opening detection potentiometer (S2),
The potentiometer make (S, ) for detecting the constant tow air volume, the chaff opening adjustment switch (S4) for manually setting the chaff opening when the selection switch (Sw) is in the manual mode, and the selection switch A tow constant air volume adjustment switch (S, ) for manually setting the tow air volume when (Sw) is in the manual mode state, and a target sorting state corresponding to the leakage processing volume (VOL) in the automatic mode. For example, condition setting potentiometers (S6) are connected to each of the condition setting potentiometers (S6) for correcting depending on processing conditions such as whether it is rice, wheat, or wet culm.

The control device (H) is configured to operate the actuator (4) and control the sorting device (B) based on preset and stored information and various kinds of manual information. ing.

That is, the processing material amount detection means (10) detects the leakage processing material i1 (VOL) by using the control device (H).
0), the sorting device ( B) automatic adjustment control means (101) for automatically adjusting the sorting state, based on information from the chaff opening adjustment switch (S4) and the tow constant air volume adjustment switch (S,) in the manual mode state; an indicator hand & (105) for instructing the start/stop of adjusting the sorting state of the sorting device (B) and the direction of adjustment; and a manual adjustment for automatically operating the actuator () based on information from the indicator hand IR (105). control means (102) for the interval @(S)
The interval adjusting actuator (M1) repeats a large state and a small state at a set period (T1).
), and the actuator for adjusting the airflow amount so that the airflow amount of (14) repeats a state of large airflow amount and a state of small airflow amount at a set cycle (T2). (M2), a selection means (104) for selecting automatic mode, manual mode, or cleaning mode based on information from the selection switch (Sw); reduction ffi
(F), a second reduction strain detection means (106) for detecting the culm supply amount (Ω) detected before the first set time (TX);
), and a second storage means (107) for storing the value of
Each of the second storage means (108) is configured to store the value of the return amount (F) detected before the set time (Td).

To explain the adjustment of the sorting state of the sorting device (B), as the amount of cut husk culms increases and the amount of grain culms introduced into the threshing device (2) increases, the feed chain (1
The thickness (D) of the culm layer transported in step 2) increases, and the amount of post-processing per unit time in the handling chamber (8) increases. As a result, the feed chain (1
As the thickness (0) of the culm layer conveyed in 2) increases, the leaked waste fl (VOL) from the handling chamber (A) increases, and the thickness (D) of the culm layer and the It can be considered that the leaked waste l (VOL) from the handling room (A) corresponds to this.

Therefore, basically, the above-mentioned supply detection sensor (S,)
Based on the detected information, the larger the grain culm supply 1 (0), the more waste! In other words, the chaff sieve (21
) is configured to automatically adjust both the wind blower and the chaff opening at the same time so that the opening of the windshield (14) becomes large and the amount of air sorted by the windshield (14) increases.

However, leakage from the handling room (A> ffi (VO
L) is not only the culm supply 1 (Q) to the handling room (A), but also the return of the second product from the sorting device (B) to the handling room (A)! (F), a second reduction amount detection means (106) for detecting the second reduction 1 (F) is provided to detect the leakage amount (VOL).
Detection is performed based on both the amount of shell culm supply (B) and the amount of reduction (F) detected at each set time. In other words, the sorting state of the sorting device (B) is different from the actual amount of waste to be treated (VOL) leaking from the handling room (A).
).

By the way, the grain culm at the position where the thickness of the culm layer ([1) is detected by the supply amount detection sensor (S,) is post-processed in the handling room (A), and the leakage therefrom is The process material leaks from the handling chamber (A) during the first set time (which is determined according to the operating characteristics of the threshing device (2) from the time of detection of the thickness (D) of the culm layer). t) later;
The second leaked material corresponding to the leaked material leaks from the handling chamber (A) after a predetermined period of time.
After the set time (td).

Therefore, a first memory I as a first storage means for storing the culm supply amount (0) up to the first set time (tx)
J (107) and the reduction amount (F) up to before the second set time (td). (not shown) in a so-called FIFO format, and the first memo 'J (1,07
) and the second memo IJ (108) are updated at each set time, the control loop of the control device (It) uses a preset reference time (
It is set to 0.5 seconds) so that it cycles every time.

Then, as will be described in detail later, at each reference time, the culm supply amount (Q) is calculated based on the thickness (D) of the culm layer detected by the supply 1 detection sensor (S1), and , store the calculated culm supply amount (Q) while deleting the oldest stored data in the first memo IJ (107);
In addition, as described below, the reduction! Calculate the current value of (F) and delete the oldest stored data, and add the calculated return amount (F) to the second memo IJ (1
08).

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

As the control is activated, the selection switch (
The state of Sw) is determined.

When the selection switch (Sw) has selected the automatic mode, it is determined whether the threshing switch (SO) is ON, that is, whether the threshing device (2) is in operation. do.

When the threshing switch (SO) is ON, during the reference time (0.5 seconds), the thickness (0) of the culm layer detected by the supply detection sensor (S1) is Based on the average value, the current culm supply i from the following formula (i)
Calculate (Q).

Q=to,・D・・・・・・(i) However, K is a preset constant.

Then, as shown in FIG. 3(a), the first memo IJ
While deleting the oldest value of the stored data in (107), each stored data is sequentially updated to the data after the reference time, and the obtained value of the current shell culm supply amount (Ω) is calculated from the first
It is stored as the latest value (Q (0) ”) of memo IJ (107).

Similarly, as shown in FIG. 3 (b), the second memo! Return for each reference time stored in J (108)! The value of (F) is sequentially updated to data after the reference time while erasing the oldest data.

After updating the data, as shown in equation (ii) below, the first memo! culm supply amount (Q(tx)) before the first set time (tx) stored in J (107)
and the return amount (p(t,, )) before the second set time (td) stored in the second memory (108).
The value obtained by adding the value of
Calculated as

VOL=Q(tx) 10F(td) ・”・” (u
) That is, the process of calculating the amount of leakage to be processed (VOL) based on this equation (11) corresponds to the amount of processed material to be detected means (100).

Incidentally, the data update process is performed using the threshing switch (So).
This is done only while ONt. Therefore, the first memory (107) and the second memory IJ (
Each of 108) is the leakage processed material immediately before the threshing clutch (7) is turned on as the threshing clutch (7) is turned on. (vOL) The above-mentioned culm supply until immediately before the cutting operation so that control can be restarted from the sorting state corresponding to (vOL)! (Q) and the above-mentioned reduction amount (F) will continue to be stored and held.

After calculating the leakage volume (VOL), the current toe air volume and chaff opening degree detected by the toe constant air volume detection potentiometer (S2) and the chaff opening adjustment potentiometer (S, ) are calculated. Based on the value of the culm supply amount (Q(tx)) before the first set time (t, 1), the return rate (K2) of the second product returned to the handling room (8) is determined. ), and the return rate (K, ) of the second item at which a part of the second item is returned to the handling room (A) after the second set time (td) is calculated.

However, a portion of the leaked waste from the handling room (A) will be returned to the handling room (A) as secondary material, and
A part of the leaked material corresponding to the returned second material is returned to the handling room (A) again.

Therefore, both the above return rates (K2) and (K4) are, respectively,
The value is less than 1. Moreover, since the value can be regarded as a substantially constant value corresponding to the sorting state of the sorting device (B), as shown in FIG. A map is prepared in advance corresponding to each opening degree, and the corresponding return rate values are calculated from the detected values by the toe constant air flow detection potentiometer (S2) and the chaff opening detection potentiometer (S3). It is designed to be read from the return rate calculation map.

Next, the value of the return rate (K2), <K4) calculated with reference to the return rate calculation map and the first set time (t
Based on the value of the culm supply amount (Q(tx)) before X) and the reduction amount (F(t,)) before the second set time (td), from the following formula (iii) , Reduction at the moment! Calculate the value of (F (0) ) and update the value.

(F(0))=2・0(1,)×F(td)
- Old... (iii) In other words, based on this (iii) formula, the reduction at the present time! The process of calculating the value of (F (0) ) corresponds to the second return amount detection means (106). As is clear from the above formula (iii), the return rate (K2) multiplied by the culm supply amount (Q) corresponds to the first set value of less than 1, and
The return rate (K,) by which the return amount (F) is multiplied corresponds to the second set value of less than 1.

And the calculated leakage waste! (VOL) value and
Based on the set values by the condition setting potentiometer (Ss), target values for the blow air volume and the chaff opening degree are calculated.

However, as shown in FIG. 5, the target values for the amount of airflow and the chaff opening are set in advance by the value of the amount of waste to be treated (VOL) and the condition setting, similar to the calculation of the reduction rate. The target value is mapped and stored in the control device (H) in correspondence with the set value by the potentiometer (S6), and the target value is read from the target setting map and set.

On the other hand, when the selection switch (Sw) is ON and the threshing switch (So) is OFF, the next time the threshing switch (So) changes from OFF to ON, the threshing device (2) Until reaching a steady state, the toe air volume and the chaff opening degree are set to preset values corresponding to a low throughput so that the sorting state corresponds to a state where the amount of leakage to be treated is small. It's like that.

To explain, for example, when the reaping work in one working stroke is finished and the mowing work is to be moved to the starting end of the next working stroke, the threshing clutch (7) can be turned off by turning the threshing clutch (7). be.

When the threshing clutch (7) is turned off, the post-processing is stopped and the amount of waste to be processed (VOL) leaking from the handling room (A) is reduced, but as mentioned above, when the threshing switch (SO) is turned OFF, In case, the leakage is treated! The culm supply (0) and reduction 1 (F) to calculate (VOL)
Because the data is not updated,
After the threshing clutch (7) is turned off and the threshing clutch (7) is turned in a state where the amount of waste to be processed (VOL) is large before turning, the next time the threshing clutch (7) is turned on and operated, immediately after the start of work, Although the work is restarted from a state where the volume of waste to be treated (VOL) is small, processing is immediately started from the sorting state corresponding to the state where the volume of waste to be treated (VOL) is large, and the waste to be processed in the hallway is Until fl (VOL) returns to a steady state, there is a risk that grains will be scattered outside the threshing device (2) and the third loss will increase.

Therefore, when the threshing clutch (7) is disengaged, the target value of the sorting state of the sorting device (B) is set to a sorting state corresponding to a state where the throughput is small.

After each of the target values of the toe air volume and the chaff opening degree are set, each of the detected values by the chaff opening detection potentiometer (S2) and the toe constant air volume detection potentiometer (S3) A motor operation process is performed to operate both the motors (M1) and (M2) for adjusting the sorting state so that each of the set target values is achieved.

In other words, the target values for the chaff opening and the chaff opening are set according to the amount of waste to be processed (VOL), and the motors for controlling the sorting conditions are operated by the motors <M1) and (M2). The operation process includes the automatic adjustment control means (10
This corresponds to 1).

After performing the motor operation process, the process starts with a process of determining whether or not a preset reference time has elapsed, and determining the operation state of the selection switch (SW) as the reference time elapses. Each process will be repeated.

That is, each time the reference time as the set time elapses, the grain culm supply 1 (Q) and the return for each reference time! (F
) while updating each of the plurality of memories, the grain culm supply amount (0) before the first set time (1,) and the return i (F) before the second set time (1+). Based on the current leakage disposal material! (VOL), and then automatically adjusts the flow rate and chaff opening so that the sorting state corresponds to the calculated amount of waste to be treated (VOL), and the control loop goes through one cycle. There is.

When the selection switch (Sw) has selected the manual mode, the chaff opening adjustment switch (S,)
The actuator (M1) for adjusting the distance and the actuator (M2) for adjusting the amount of air blown are operated based on the information from the airflow adjustment switch (S,).

However, if the amount of husk supply (B) to the handling chamber (A) is greater than the large set value (Q1) and the spacing (S) of the chaff sieve (21) is less than or equal to the small set value (S1). , and the set value (
Q2) If it is below and the sorting air volume of the toumi (14) is greater than a large set value, it will be judged that the sorting condition is not appropriate and a warning will be issued by sounding a buzzer or flashing an alarm lamp. ing.

Further, when the selection switch (Sw) is in the cleaning mode, the spacing adjustment actuator (M,) is set so that the spacing (S) repeats fully open and fully closed at each adjustment period (T+). At the same time, the actuator (M2) for adjusting the amount of air blown is operated so that the amount of air blown from the toumi (14) repeats the strength and weakness at each set cycle (T2).

Incidentally, (T1) is set to 3 seconds, and (T2) is set to 4 seconds. In other words, the above-mentioned processing corresponds to the control means (103) for the final cleaning.

However, even in the cleaning mode, the processing material amount detection means (1
00), when the leaked material is detected, the leaked material 1i (VOL) is detected as in the automatic mode.
The sorting state of the sorting device (B) is automatically adjusted so that the sorting state corresponds to the sorting state.

[Another example]

In the embodiment described above, the cleaning control means is configured to repeat the strength and weakness of the airflow rate of the dustpan (14) at a set cycle (T2), but when the airflow rate of the dustbin (14) becomes large, It may also be configured such that it is held at

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

[Brief explanation of the drawing]

The drawings show an embodiment of the combine harvester cleaning control device according to the present invention, in which Fig. 1 is a block diagram of the control configuration, Fig. 2 is a flowchart of control operation, and Fig. 3 (a) is a memory of the culm supply amount. Figure 4 is an explanatory diagram of the return amount calculation map, Figure 5 is an explanatory diagram of the target value calculation map, and Figure 6 is an explanatory diagram of the processing. A schematic side view of the combine harvester, Fig. 7 is a transmission system diagram, Fig. 8 is a cutaway side view of the threshing device, and Fig. 9 is a schematic diagram of the starting end of the feed chain conveyance showing the installation of the sensor for detecting the feed amount. A side view, FIG. 10 is a cutaway side view showing the structure of the chaff sheave, FIG. 11 is an enlarged side view of its main parts, FIG. 12 is a developed plan view showing the structure of the attachment of the strip plate member, and FIG. 13 14 is a side view of the essential parts showing the transmission structure of Toumi, FIG. 14 is a cross-sectional view of the manual pulley portion of Toumi, and FIG. 15 is a developed plan view of the cam forming member. (2)... Threshing device, (14)... Toumi, (15)... Rocking sorting plate, (21)...
... Chaff Sheave, (A) ... Handling room, (+
, 1 , )... Actuator for adjusting the interval, (M2) Actuator for adjusting the air flow rate, (S)...
. . . Interval, (a), (a') . . . Strip member, (103) . . . Control means for cleaning.

Claims (1)

[Scope of Claims] 1. A swinging sorting plate (15) for sorting out leaked material from the handling chamber (A) of the threshing device (2) and a comb (14) for blowing sorting air are provided. The oscillating sorting plate (15) includes strip members (a), (a
a chaff sheave (21) configured with a chaff sheave (21), and an actuator ( M_1) is provided, and an actuator (M_1) is provided for adjusting the air blowing amount to change and adjust the air blowing amount of the air blower (14).
_2) is provided, and the distance adjustment actuator (
M_1) and the actuator for adjusting the air blowing amount (M_1)
2) is provided, and the cleaning control means (103) operates the interval (S).
) is set to a large state and a small state (T_1
) to repeat the distance adjustment actuator (
A cleaning control device for a thresher, which is configured to operate the actuator (M_1) for adjusting the amount of air blown so that the amount of air blown to the threshing machine (14) is in a set state. 2. The setting state of the air blowing amount of the above-mentioned Toumi (14) is set at a period in which the air blowing amount is large and the air blowing amount is small (
The control device for cleaning a threshing machine according to claim 1, wherein the cleaning control device is set to repeat at T_2).