JPH0793852B2 - Combine control system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a sorting device for swing-sorting a leaked material from a handling room of a threshing device, and a load detecting means for detecting a drive load of the threshing device. And a control means for automatically adjusting the sorting state of the sorting device based on the detection information of the load detecting means, so that the larger the driving load of the threshing device is, the larger the throughput is. The present invention relates to a combine selection control device provided with.

[Conventional technology]

In the above-mentioned combine selection control device of the above type, conventionally, the selection state of the selection device is automatically adjusted based only on the drive load of the threshing device.

[Problems to be Solved by the Invention]

However, the combine is provided with a dust delivery valve for discharging the straw debris generated in the handling room to the outside of the handling room so that the opening thereof can be changed and adjusted.

Therefore, even if the load on the threshing device is the same, the proper sorting state will differ depending on the opening of the dust sending valve, and with the configuration that automatically adjusts the sorting state only by the loading state of the threshing device, accurate control can be performed. There is a possibility that it will not.

The present invention has been made in view of the above circumstances, and an object thereof is to be able to appropriately and automatically adjust a sorting state regardless of the opening degree of the dust delivery valve.

[Means for Solving the Problems]

The combine sorting control device according to the present invention is provided with a sorting device that swings and sorts the leaked material from the handling room of the threshing device, and a load detection unit that detects a drive load of the threshing device. Control means for automatically adjusting the sorting state of the sorting device based on the detection information of the load detecting means so that the sorting state corresponding to the larger processing amount becomes larger as the driving load becomes larger. The characteristic configuration is as follows.

That is, a dust delivery valve whose opening can be changed and adjusted, and an opening detection means for detecting the opening of the dust delivery valve are provided, and the control means controls the drive as the opening of the dust delivery valve increases. It is configured to automatically adjust the sorting state of the sorting device based on both the information of the load detecting means and the information of the opening detecting means so that the sorting state corresponds to the state where the load is large. There is a point.

[Action]

Basically, it is determined that the larger the drive load of the threshing device is, the larger the amount of the leakage treated material is, and the sorting state is automatically adjusted. By the way, the drive load of the threshing device tends to decrease as the opening degree of the dust delivery valve increases. Therefore, based on both the opening of the dust sending valve and the load of the threshing device, a sorting state corresponding to a state in which the driving load of the threshing device becomes larger as the opening of the dust sending valve increases Since the sorting state of the sorting device is automatically adjusted, the sorting state of the sorting device can be accurately and accurately adjusted to an appropriate sorting state according to the actual amount of the leaked material.

〔The invention's effect〕

Therefore, regardless of the opening degree of the dust sending valve, the sorting state of the sorting device can be properly and automatically adjusted.

Since the present invention automatically adjusts the sorting state based on both the drive load of the threshing device and the opening of the dust delivery valve, the so-called self-removing type in which only the tip of the mowing grain rod is inserted into the handling chamber In addition, as described in claim 2, the present invention can be similarly applied to a case where the combine is configured as a so-called whole rod throwing type in which the whole grain rods cut and processed in the handling chamber are thrown in. .

〔Example〕

Hereinafter, an embodiment in the case where the present invention is applied to a sorting control device for an all-rods type combine combine will be described with reference to the drawings.

As shown in FIG. 10, an all-rods type combine combine is a vehicle body (V) equipped with a crawler traveling device (1), a control part (2), and a threshing device (3), and a vehicle body at the front part thereof. And a cutting pretreatment section (4) mounted so as to be driven up and down around a horizontal axis along the width direction.

The pre-cutting processing unit (4) will be described. A weeding tool (5) provided at the tip of the cutting unit, a reel (6) for scraping the planted grain rod to the rear side of the machine body (V), and a scraping unit. Clipper type cutting blade (7) for cutting the root part of the grain rod, an auger (8) for receiving the cut grain rod and sending it to the rear of the machine body (V), and a scratch provided with three rotating drums in parallel. It is composed of a lifting conveyance section (9).

Explaining the threshing device (3), as shown in FIG. 10, a handling room (A) into which all of the cut grain rods conveyed by the scraping and conveying section (9) are placed, and the handling room. The sorting apparatus (B) comprises a swinging sorting plate (10) for sorting the leaked material from (A) and a Karako (11) for sending sorting air.

In the handling room (A), a handling barrel (12) having a rotary shaft core that is inclined rearward along the longitudinal direction of the machine body (V).
Below the handling barrel (12), a receiving net (13) for leaking threshed material is stretched over substantially the entire length of the handling chamber (A) in the front-rear direction. And the handling body (12)
A torque sensor (S ₁ ) as a load detecting means for detecting the driving torque of the rotating shaft, that is, the driving load of the threshing device (3) is provided on the rotating shaft.

As shown in FIG. 13, a dust delivery valve (14) is provided on the upper part of the handling barrel (12) for discharging the straw debris generated in the handling chamber (A) to the outside of the handling chamber. . However, although not detailed,
This dust delivery valve (14) is configured so that its opening can be changed and adjusted by an electric motor (M ₃ ), and the opening of the potentiometer type dust delivery valve as opening detection means for detecting the current opening. A detection sensor (S ₂ ) is provided.

As shown in FIG. 10, the swing selection plate (10) includes a Glen pan (15), a chaff sheave (16), and a Straw rack (17) which are arranged in order from the front to the rear. Below the chaff sheave (16), the auxiliary gren pan (18) and the glen sheave (19) are arranged in the front-rear direction, respectively, and the respective parts of the auxiliary left and right side plates (20) are arranged. It is fixed between and is formed in a plate shape as a whole.

Further, in the lower part of the sorting device (B), a first item recovery section (21) for recovering the grain leaking from the grain sieve (19) as the first item, a terminal part of the chaff sheave (16), A processed product (abbreviated as a second product in the following description) in which straw dust and the like that have fallen over the end portion of the Glen sieve (19) and grains are mixed is collected and returned to the handling chamber (A). And a second item recovery section (22) for the purpose. In the figure,
(23) is a transfer device for returning the second item to the handling chamber (A).

The chaff sheave (16) will be described. As shown in FIG. 11, the processed material transfer direction (horizontal direction in the drawing).
A plurality of strip-shaped members (16a) juxtaposed to each other are rotatably attached to the left and right side plates (20) with their upper ends as fulcrums, and the lower end of each strip-shaped member (16a). By pushing and pulling the operation rod (24) pivotally attached to the front-rear direction, the interval (s) between adjacent strip plate members (16A) (abbreviated as chaff opening in the following description). In some cases) can be changed and adjusted.

A chaff opening adjusting electric motor (M ₁ ) is provided as an actuator for changing and adjusting the chaff opening, and a linkage mechanism (25) driven by the electric motor (M ₁ ) and the operating rod (24). ) And release wire (2
It is interlocked and linked in 6).

In the figure, (27) is a spring for biasing the chaff opening to return to the closing side, and (S ₃ ) is the chaff opening based on the operation amount of the operation rod (24) by the electric motor (M ₁ ). It is a potentiometer-type chaff opening detection sensor for detecting, and is attached to a linkage mechanism (25) driven by the electric motor (M ₁ ).

Explaining the Karato (11), a so-called split pulley type continuously variable transmission is used to change the rotation speed thereof to change and adjust the blown air amount.

To add explanation, as shown in FIG. 12, the Kara (11)
The input pulley (28) that rotationally drives the motor is configured as a split pulley, and the operation arm (29) that changes the diameter of the input pulley (28) is rotated by the electric motor (M ₂ ) for adjusting the toumi air volume. By adjusting the rotation speed of the Karato (11) to high or low by the electric motor (M ₂ ), the blown air amount (which may be abbreviated as a toumi air amount in the following description) is adjusted. It can be adjusted to change the strength.

In the figure, (30) is a drive belt for the input pulley (28), and (31) is an interlocking connection between a linkage mechanism (32) driven by the electric motor (M ₂ ) and the operation arm (29). A release wire, (S ₄ ) is a potentiometer-type sensor for detecting the air flow of the operation arm (29) as the air flow of the toumi, and is a linkage mechanism driven by the electric motor (M ₂ ). It is attached to (32).

That is, the sorting device (B) adjusts the chaff opening degree to be large or small, and the toumi air volume to be strongly or weakly, so that the amount of the substance to be leaked from the handling chamber (A) is small or large. It is configured so that the sorting state can be adjusted. As will be described later in detail, the larger the amount of the leaked substance, the larger the chaff opening and the stronger the volume of the toumi air.

Next, regarding the control configuration for automatically adjusting the sorting state of the sorting device (B) by operating the electric motor for adjusting chaff opening (M ₁ ) and the electric motor for adjusting toumi air volume (M ₂ ). explain.

As shown in FIG. 1, a control device (33) utilizing a microcomputer is provided, and the control device (33) has the torque sensor (S ₁ ) and the dust-sending valve opening detection sensor (S ₂ ). , The chaff opening detection sensor (S ₃ ), the toumi air flow detection sensor (S ₄ ), and the dust sending valve opening setter (S ₅ ) for manually setting the opening of the dust sending valve (14). ), A chaff opening setting device (S ₆ ) for manually setting the upper limit of the chaff opening, and a toumi air flow setting device (S ₇ ) for manually setting the lower limit of the toumi air flow rate are connected. ing.

That is, by using the control device (33), the sorting state corresponding to the larger processing amount increases as the drive load of the threshing device (3) increases, and the dust sending valve (14) is opened. Based on both the information of the torque sensor (S ₁ ) and the information of the dust valve opening detection sensor (S ₂ ) so that the higher the driving load becomes, the more the driving load becomes a sorting state. Thus, a control means (100) for automatically adjusting the sorting state of the sorting device (B) is configured.

In the figure, (34) is an alarm device which is activated when the treatment room (A) is clogged to notify an alarm,
(SW ₁ ) is a chaff auto switch that selects whether to automatically adjust the chaff opening or hold it at the value set by the chaff opening setting (S ₆ ), and (SW ₂ ) automatically adjusts the toumi air volume. This is a TOMY auto switch for selecting whether to adjust or hold the value set by the TOMI air volume setting device (S ₇ ).

However, although not described in detail, the auto switch (SW ₁ ),
Even if (SW ₂ ) is selected to the automatic side, since the Karo (11) is configured to change the rotation speed by using the split pulley type transmission, the Karo ((2) 1
When the number of rotations of 1) is smaller than the preset value (500 rpm), it is determined that the threshing device (3) is in the non-operating state, and the actual control is not started.

Explaining the adjustment of the sorting state of the sorting device (B), the larger the amount of grain rods loaded into the handling chamber (A) is,
The driving load of the handling cylinder (12) becomes large, and the handling chamber (A)
In this case, the amount of processed material per unit time increases and the amount of leaked material increases. That is, it can be considered that the drive load of the handling cylinder (12) corresponds to the amount of the leakage processing material from the handling chamber (A).

Therefore, as shown in FIG. 3, basically, the amount of leaked material (VOL) is obtained as a value proportional to the value of the torque (T) detected by the torque sensor (S ₁ ).

However, since the detected torque (T) has a characteristic that it becomes smaller as the opening degree of the dust delivery valve (14) becomes larger, even if the amount of leaked material is the same, as shown in FIG. The correction value (α) for the detected torque (T) is obtained as a value proportional to the detection opening (D) by the dust-feeding valve opening detection sensor (S ₂ ), and as shown in the following formula, the leakage Amount of processed material (VO
The value of L) is the detected torque (T) and the dust transfer valve (14).
The value is proportional to both the opening degree (D).

VOL = K ₁ × T + α = K ₁ × T + K ₂ × D where K ₁ and K ₂ are control constants.

Then, as shown in FIG. 5 and FIG. 6, the chaff opening degree is increased so that the chaff opening degree becomes larger and the toumi air quantity becomes stronger as the value of the leakage processed material amount (VOL) thus obtained becomes larger. It is configured to automatically adjust both the air flow rate and the toumi air volume at the same time.

However, the upper limit of the chaff opening to be automatically adjusted is the value set by the chaff opening adjuster (S ₆ ), and the lower limit of the toumi air flow is set by the toumi air flow adjuster (S ₇ ). It becomes a value.

That is, the value of the chaff opening obtained based on the information of the torque sensor (S ₁ ) and the information of the opening detection sensor (S ₂ ) is the value set by the chaff opening setter (S ₆ ). If the value exceeds the set value (upper limit), it will be held at the set value (upper limit), and the toumi air volume obtained based on the information of the torque sensor (S ₁ ) and the information of the opening detection sensor (S ₂ ). When the value of is smaller than the value set by the toumi air flow rate setter (S ₇ ), the value is held at the set value (lower limit).

Although not described in detail, when the cut culm is rice or wheat, it is automatically adjusted to the maximum opening (60 degrees) regardless of the upper limit setting by the chaff opening setting device (S ₆ ). There is.

By the way, as shown in FIG. 7, the upper limit value that can be set by the chaff opening degree setting device (S ₆ ) is set from 60 degrees corresponding to the fully open state to the set value (20
The lower limit value that can be set by the toumi air flow rate setting device (S ₇ ) is set to be larger than the minimum adjustable value (700 rpm) as shown in FIG. The maximum value (1200 rpm) that can be adjusted from the set value (800 rpm)
It can be adjusted up to rpm).

However, until the reaping work is started, control based on the information of the torque sensor (S ₁ ) cannot be performed. Therefore, until the reaping work is started, the chaff opening is maintained in the fully closed state, and the toumi air flow rate is maintained. Is trying to maintain the weakest condition.

The control state until the start of the reaping work is abbreviated as mode 1 in the following description.

After starting the mowing work, as described above, the information of the torque sensor (S ₁ ) and the opening detection sensor (S ₂ )
Therefore, the chaff opening degree and the toumi air volume are automatically adjusted so that the sorted state is obtained according to the leakage processing material amount (VOL) obtained based on the information of 1. The control state during the mowing work is abbreviated as mode 2 in the following description.

Next, when the reaping work is completed, the state is the same as that before the reaping work is started. However, even after the reaping work is completed, the amount of the substance to be leaked out from the handling room (A) is not immediately present. Since it does not happen, the current chaff opening and toumi air volume are maintained until the set time (15 seconds) elapses after the mowing work is completed. After the lapse of the set time (15 seconds), the mode 1 is entered. The control state until the set time (15 seconds) elapses after the end of mowing is abbreviated as mode 3 in the following description.

By the way, the detection of the start of cutting and the end of cutting is
The determination is made based on the detection value of the torque sensor (S ₁ ).

In addition, as shown in FIG. 9, the handling room (A)
If there is no grain rod inside, the value of the torque (T) detected by the torque sensor (S ₁ ) will be the lowest, and the state will rise rapidly as the grain rod is introduced, and at the end of cutting It will return to the same state as before.

Therefore, when the detected value of the torque sensor (S ₁ ) changes from a threshold value (TH) smaller than a preset value, it is determined that cutting is started, and the threshold value (TH) changes from a larger value to a smaller value. As it is done, it is decided that the cutting has been completed.

Although not described in detail, (T ') in FIG. 9 is a sampling value obtained by A / D converting the detected torque (T).

Next, the operation of the control device (33) will be described based on the flowchart shown in FIG.

As the control is activated, the torque sensor (S ₁ )
By determining whether or not the detected torque (T) is larger than the threshold value (TH), it is determined whether or not the cutting is being performed.

When the detected torque (T) is smaller than the threshold value (TH), it is determined that the state is before the start of mowing, the mode 1 is shifted to the control state, and the chaff opening is fully closed. And, the toumi air volume will be maintained at the weakest state.

When the detected torque (T) is larger than the threshold value (TH), the detected torque (T) is preset in order to determine whether or not the handling cylinder (12) is clogged. It is determined whether it is larger than the maximum value (THmax).

When the detected torque (T) is larger than the maximum value (THmax), it is determined that the handling cylinder (12) is clogged, and the dust delivery valve (14) is opened to the maximum opening. As it opens
The alarm device (34) is activated to notify the occurrence of clogging of the handling cylinder (12).

When the detected torque (T) is smaller than the maximum value (THmax), the detected torque (T) is used to determine whether the cutting is being performed or the cutting is being completed and the cutting is completed. Is larger than the threshold value (TH).

When the detected torque (T) is smaller than the maximum value (THmax) and larger than the threshold value (TH), it is determined that the cutting is being performed, and the mode 2 is shifted to the control state.
The detection torque (T) and the opening degree (D) of the dust transfer valve (14)
The chaff opening and the toumi air volume are automatically adjusted based on However, although not described in detail, when the chaff auto switch (SW ₁ ) is OFF, the chaff opening is maintained at a set value, and when the tow auto switch (SW ₂ ) is OFF, Toumi air volume will be maintained at the set value.

When the detected torque (T) has changed from being larger than the threshold value (TH) to being smaller than the threshold value (TH), it is determined that the cutting has ended, and the control state of the mode 3 is entered to open the current chaff. Temperature and toumi air volume, and check the elapsed time (TIME).

However, in order to prevent malfunction, while the elapsed time (TIME) after shifting to the mode 3 is less than the set time (15 seconds), the detected torque (T) is greater than the threshold value (TH). Whether it is large or not is repeatedly determined, and when it is small, the elapsed time (TIME) is repeatedly checked. Then, when it becomes larger than the threshold value (TH), it is judged that the operation is malfunctioning, and the mode 2 is restored.

The control device (33) repeatedly executes the processing described above until the power is turned off.

[Another embodiment]

In the above-described embodiment, the case where both the chaff opening degree and the toumi air volume are automatically adjusted has been described, but only one of them may be automatically adjusted.

Further, in the above-mentioned embodiment, the case where the rotation speed of the Karako (11) is changed and adjusted by using the split pulley type transmission is exemplified, but the Karaku (11) is driven by the electric motor. Then, the rotation speed of the electric motor may be changed, or the rotation speed of the Karato (11) may be constant, and the air supply quantity to the Karato (11) may be changed to change and adjust the Toumi air volume. The specific configuration for changing and adjusting the Toumi air volume can be changed in various ways.

Further, in the above-described embodiment, the case where the drive load of the threshing device (3) is detected based on the torque of the handling cylinder (12) has been exemplified, but, for example, the auger (8) or the scraping and conveying section is used. You may make it detect based on the drive torque of (9).

Further, in the above-mentioned embodiment, the case where the cutting start and the cutting end are discriminated based on the information of the torque sensor (S ₁ ) is exemplified, but a dedicated sensor is provided or the discrimination is performed based on other information. You may do it. Incidentally, the determination may be made based on the driving torque of the auger (8) and the scraping and conveying section (9).

Further, in the above-mentioned embodiment, the case where the present invention is applied to the sorting control device of the all-rods type combine is illustrated, but the present invention is also applicable to a so-called self-removing combine, and the sorting device The specific configuration of each part such as the specific configuration of (B) and the structure for changing and adjusting the selected state can be variously changed.

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

[Brief description of drawings]

The drawings show an embodiment of a combine selection control device according to the present invention. Fig. 1 is a block diagram of a control configuration, Fig. 2 is a flow chart of control operation, and Fig. 3 is a relation between a load and an amount of leakage processing material. Explanatory diagram, FIG. 4 is an explanatory diagram of the relationship between the opening of the dust-sending valve and the correction value of the threshing load, FIG. 5 is an explanatory diagram of the relationship between the amount of leaked material and chaff opening, and FIG. FIG. 7 is an explanatory view of the relationship between the amount of lower-treated product and toumi air volume, FIG. 7 is an explanatory view of a chaff opening setting range, and FIG. 8 is an explanatory view of a tomi air volume setting range.
The illustration is for explaining the relationship between threshing load and control sequence.
FIG. 11 is a cutaway side view of the combine, FIG. 11 is an explanatory view of a chaff opening adjusting mechanism, FIG. 12 is an explanatory view of a toumi air volume adjusting mechanism, and FIG. 13 is a plan view of a dust sending valve. (A) …… Handling room, (B) …… Sorting device, (S ₁ ) …… Load detection means, (S ₂ ) …… Opening degree detection means, (3) …… Thrushing device, (14) …… Dust control valve, (100) ... Control means.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuichi Odawara 64, Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd. Sakai Works (56) Reference JP-A-1-128720 (JP, A) 59-150235 (JP, U)

Claims (2)

[Claims] 1. A sorting device (B) for swing-sorting a leaked material from the handling chamber (A) of the threshing device (3), and a load detection means (d) for detecting a drive load of the threshing device (3). S ₁ ) is provided, and the sorting is performed on the basis of the detection information of the load detecting means (S ₁ ) so that the larger the driving load of the threshing device (3) is, the more the sorting state corresponds to the processing amount. A combine selection control device provided with a control means (100) for automatically adjusting the selection state of the device (B), the dust control valve (14) having an adjustable opening degree and the dust control valve (14). opening detection means for detecting the opening of) (S ₂₎ and is provided, said control means (100), the opening of Okuchiriben (14) corresponds to a state in which large indeed the drive load becomes large as the selection state, in both the information of the information and the opening detection means of said load detecting means _{(S 1) ((S 2} ) Zui and the sorting device (B) selecting control apparatus for combine that is configured to automatically adjust the sorting condition of the. 2. The combine selection control device according to claim 1, wherein the whole harvested grain rod is put into the handling room (A).