JP2661801B2 - Threshing equipment sorting control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sorting control device for a threshing device provided with a control means for automatically adjusting the processing capacity of a sorting device for sorting and processing the processed material supplied from a handling room.

[0002]

2. Description of the Related Art Optimum sorting can be performed when the thickness of the processed material on a swinging sorting plate provided in the sorting apparatus and the processing capacity of the sorting apparatus have an appropriate relationship. Therefore, it is common to adjust the processing capacity of the sorting device so that the appropriate relationship is obtained according to the thickness of the processed material. by the way,
Although a sensor for directly detecting the thickness of the processed product may be provided, a sensor for detecting the amount of cereal culm supplied to the handling room may be provided to substitute for the sensor. Conventionally, only one of the two sensors is provided, and based on the detection information of the sensor,
The processing capacity of the sorting device was automatically adjusted.

[0003]

In the control of the sorting apparatus, it is considered that the dead time factor is relatively large. Therefore, when automatically adjusting the processing capacity of the sorting device by providing only a sensor that directly detects the thickness of the processed material, hunting occurs when the supply of grain stalk to the handling room fluctuates,
As a result, the transient response becomes unstable. On the other hand, when only the sensor for detecting the supply amount of the cereal stalk to the handling room is provided and the processing capacity of the sorting device is automatically adjusted, the transient characteristics can be improved, but the thickness of the processed material is not detected. There is a possibility that the relationship between the thickness of the processed material and the processing capacity of the sorting device may deviate from the appropriate relationship. SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional drawbacks and to obtain a sorting control device for a threshing device capable of performing good sorting.

[0004]

In order to achieve the above object, the present invention provides a threshing apparatus sorting control device which comprises a feed amount detecting means for detecting a feed rate of cereal stalks to the handling room; Thickness detecting means for detecting the thickness of the processing object on the swing sorting plate provided in the apparatus, wherein the control means detects detection information of the supply amount detecting means and detection of the thickness detecting means The target processing capacity is determined based on both the information and the information, and the sorting device is automatically adjusted to the target processing capacity.

[0005]

The control means obtains a target processing capacity based on both the detection information of the supply amount detecting means and the detection information of the thickness detecting means, and automatically adjusts the sorting device to the target processing capacity. It is. Therefore, by feeding back the detection information of the thickness detecting means, it is possible to suppress the relationship between the thickness of the processed object on the swinging sorting plate to be sorted and the processing capacity of the sorting device from largely deviating from an appropriate relationship. That is, the steady-state characteristics can be improved. Also, by feeding forward the detection information of the supply amount detecting means,
Even when the grain culm supply amount to the handling room fluctuates due to, for example, changes in vehicle speed, the fluctuation information is given in advance, and by obtaining an appropriate target processing capacity in advance,
Hunting can be reduced. That is, the transient characteristics can be improved.

[0006]

As a result, a target processing capacity is obtained based on both the detection information of the supply amount detecting means and the detection information of the thickness detecting means, and the processing capacity of the sorting device is controlled. Since the steady state characteristics and the transient characteristics can be improved, the relationship between the thickness of the processed material and the processing capacity of the sorting device can be maintained as appropriate as possible. Therefore, it is possible to obtain a sorting control device for a threshing device that can perform good sorting.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a sorting control device of a threshing device mounted on a combine will be described below with reference to the drawings. As shown in FIG. 9, the combine is equipped with a reaper 4 at the front of the machine having a pair of right and left crawler traveling devices 1, a threshing device 2, and a driver's seat 3.

The cutting unit 4 includes a raising device 5 for raising the grain culm in the field, a cutting blade 6 for cutting the root of the raising culm, a vertical transport device 8 for transferring the cut culm to the feed chain 7 of the threshing device 2, And an auxiliary transport device 9 for transporting the harvested grain culm to the vertical transport device 8. In the figure,
S0 is a stock sensor that detects the presence or absence of a grain culm to be conveyed to the threshing device 2 by being brought into contact with the stock of the harvested grain culm at the conveyance start end of the vertical conveyance device 8.

As shown in FIG. 10, an engine E and a drive case 10A of the crawler traveling device 1 are linked to each other via a belt tension type main clutch 10B and a traveling transmission 10 including forward / reverse switching. At the same time, the engine E and the threshing device 2 are interlocked and connected via a belt tension type threshing clutch 11. Drive case 1
A part of the output transmitted to 0A is transmitted to the reaping unit 4 via the belt tension type reaping clutch 12.
A vehicle speed sensor S1 for detecting a vehicle speed based on the output rotation speed of the drive case 10A is provided.

As shown in FIG. 11, the threshing apparatus 2 includes a handling chamber A for accommodating a handling drum 13 for handling a harvested grain culm which is nipped and conveyed from the front of the machine to the rear of the machine by the feed chain 7. And a sorting device B provided with a swinging sorting plate 15 for sorting the processed material supplied from the handling room A and a toy 16 for blowing the sorting wind. In the present embodiment, the second product is returned to the swing sorting plate 15 for sorting. At the bottom of the room A,
3 is a receiving net 17 through which threshing material leaks along the lower outer peripheral portion
Is provided. The swing sorting plate 15 is a Glen pan 1 arranged so as to be sequentially arranged from the front to the rear of the fuselage.
8, a chaff sheave 19 and a straw rack 20 are provided. Below the chaff sheave 19, an auxiliary Glen pan 21 and a Glen sheave 22 are sequentially arranged in the front-rear direction. Glen Pan 18 to Glen Sheave 2
2 are fixed between a pair of left and right side plates 23.

[0011] As shown in FIG.
Is a plurality of strip-shaped members 2 juxtaposed in the processing object transfer direction.
5 is formed. The strip-shaped members 25 are rotatably attached to the side plate 23 with the upper end as a fulcrum. That is, by rotating the band-shaped member 25 to change and adjust the interval t to be large or small, the amount of the processed material per unit time passing through the interval t can be adjusted. On the fixed frame side of the threshing device 2, a motor M1 for changing and adjusting the interval t to be large or small is provided.
Member 27 that meshes with the screw shaft 26 that is driven forward and reverse
Are interlockingly connected via a release wire 29 to an operation rod 28 connected to the lower end of each band-shaped member 25. Further, there are provided a spring 30 which biases the closing side where the interval t becomes small, and a chaff opening degree detecting potentiometer P1 which detects an adjustment state of the interval t as a position change of the top member 27.

A thickness sensor S2 as a thickness detecting means for detecting the thickness of the processed material on the chaff sheave 19 is attached to the holding member 17A of the receiving net 17. The thickness sensor S2 includes a sensor bar 31 suspended swingably around a horizontal axis, and a detection unit 32 for detecting a swing angle of the sensor bar 31. The sensor bar 31 is connected to the downstream portion 3
1A is formed in a forked shape longer than the upstream portion 31B.
That is, the thickness of the processed object is detected based on the angle at which the sensor bar 31 contacts and swings on the processed object on the chaff sheave 19, but when the thickness of the processed object is relatively small, the downstream portion 31A is When the thickness of the processing object is relatively large, the upstream portion 31B comes into contact with the processing object.

[0013] The tow 16 is adapted to change and adjust the blowing amount by changing the rotation speed. If you add a description,
As shown in FIG. 13 and FIG.
An input pulley 34 attached to 3 is divided into a fixed side 34A and a sliding side 34B to form a so-called split pulley type transmission 35. A motor M2 for adjusting the air flow is mounted on the fixed frame side of the threshing device 2, and an operation arm 36 for a speed change operation is attached to the speed change device 35. An operation arm 36 and a top member 38 that meshes with a screw shaft 37 driven forward and reverse by the motor M2 are interlocked and connected by a release wire 39. Thus, the output of the engine E, which is transmitted through the input pulley 34 via the transmission belt 40, can be transmitted to the rotating shaft 33 by changing the speed. Further, a rotation speed sensor S3 for detecting the rotation speed of the torsion 16 is provided.

Next, a control structure for automatically adjusting the processing capacity of the sorting device 2 by operating the motor M1 for adjusting the interval of the chaff sheave 19 and the motor M2 for adjusting the air flow will be described. As shown in FIG. 1, a control device H using a microcomputer is provided, and the control device H includes a stock sensor S0, a vehicle speed sensor S1, a thickness sensor S2, a rotation speed sensor S3 of the torsion 16, a threshing clutch 11, and the like. A threshing switch S4 for detecting an off state, a back switch S5 for detecting that the transmission 10 has been operated to the reverse side, a selection switch S6 for selecting whether the processed material is rice or wheat, and a rotation speed sensor S7 for the engine E. , A potentiometer P1 for detecting a chaff opening, a potentiometer P2 for setting a chaff opening which sets a maximum chaff opening CH0, and a potentiometer P3 for setting a maximum towing speed TO0. And the control device H
Is configured to control the operations of the motor M1 for adjusting the interval and the motor M2 for adjusting the air flow rate based on information set and stored in advance and various kinds of input information. That is, the control unit 100 is configured using the control device H.

First, handling of input information will be described. FIG. 15 shows a potentiometer P2 for setting the chaff opening.
The maximum chaff opening degree CH0 for the set voltage of FIG.
2 shows the maximum towing speed TO0 with respect to the set voltage of the towing speed setting potentiometer P3. The vertical axis in FIG. 15 corresponds to the output voltage of the potentiometer P1 for detecting the opening of the chaff, and 0.5 (V) is fully closed (CHMIN) and 3.5 (V) is fully open (CHMAX).
Is equivalent to By the way, since the grain culm supply amount to the handling room A increases as the cutting speed increases, it may be proportional to the vehicle speed. In the present embodiment, the vehicle speed sensor S1 corresponds to the supply amount detecting means. Here, as shown in FIG. 17, the vehicle speed SP is divided into five levels SPL.
The detection voltage SV of the thickness sensor S2 is also divided into eight levels SVL as shown in FIG. Level 1
Corresponds to a state in which the longitudinal direction of the downstream portion 31A is substantially vertical, and level 7 corresponds to a state in which the longitudinal direction is substantially horizontal.

In the following, the operation of the control device H will be described. During the mowing operation (second mode described later), basically, based on the maximum chaff opening degree CH0 and the vehicle speed level SPL, the reference chaff opening degree CHVR is calculated based on the maximum towing degree. The reference tough rotation speed TOVR is obtained from the rotation speed TO0 and the vehicle speed level SPL, respectively, and the reference chaff opening CHVR and the reference tomy rotation speed TOVR are corrected based on the thickness level SVL, and the target value CH and the towing rotation speed for the chaff opening. Is obtained with the target value TO. Then, the chaff opening degree and the toy rotation speed are set to the two target values CH,
The motor M1 for adjusting the interval and the motor M2 for adjusting the air flow rate are operated so as to reach TO. Note that the setting voltage of the chaff opening setting potentiometer P2 is 4.2 (V).
When the rotation speed is less than 500 (rpm) and the threshing switch S4 is ON, the following control is activated. The case where the selection switch S6 is selecting rice is mainly described. There are the following three control modes after the start condition is satisfied. The first mode from when the stock sensor S0 is first turned on after the start condition is satisfied until a predetermined time elapses, and the second mode from when the stock sensor S0 is turned on and a predetermined time elapses until the stock sensor S0 is turned off. This is the third mode from when the stock sensor S0 is turned off to when the stock sensor S0 is turned on and a predetermined time elapses.

FIG. 19 shows the relationship between the thickness level SVL and the target value CH of the chaff opening in the first mode, and FIG. 20 shows the relationship between the thickness level SVL and the target value TO of the torsion speed. Here, the control is executed irrespective of the vehicle speed. In addition, the numerical value in a parenthesis shows the case of wheat (the following is the same). Further, when the state in which the thickness level SVL is 1 continues for a predetermined time or more, it is determined that there is no processed material in the threshing device 2, the target value CH of the chaff opening is set to 0.5, and the target The value TO is 850 (1000). Also, the second
FIGS. 21 and 22 show the same relationship in the mode as described above. Here, when the thickness level SVL is 4 or more, the target values CH and TO are not changed to the small side. When the thickness level SVL is 0, the thickness sensor S2 is determined to be abnormal, and the information of the thickness sensor S2 is ignored. That is, in addition to the information of the reference chaff opening degree CHVR and the reference toe rotation speed TOVR, the conventional control for correcting the target values CH and TO based on the engine rotation speed or the like is performed (for example, when the vehicle speed is rapidly reduced, the predetermined control is performed. The target values CH and TO are not corrected until the time elapses, and when the engine speed decreases by a predetermined speed or more, the vehicle speed level SPL
Is treated as 0). Note that the mode shifts to the third mode as the back switch S5 is turned ON. 23 and 24 show the same relationship in the third mode as described above. Here, CHE and TOE are the target values CH and TO when the stock sensor S0 changes from ON to OFF. Here, when the state where the thickness level SVL is 1 continues for a predetermined time or more, the same processing as in the first mode is performed. When the thickness level SVL is 0, the output is stopped for a predetermined time, and thereafter, the target value CH of the chaff opening is set to 1.5 (0.5), and the target value TO of the torsion speed is set to 850 (TOE). To
The output is stopped until a predetermined time elapses after the stock sensor S0 changes from OFF to ON.

Next, a procedure for determining both target values CH and TO will be described with reference to flowcharts shown in FIGS. First, according to the procedure shown in FIG. 3, the detection voltage SV of the thickness sensor S2 is changed to any one of the thickness levels S in FIG.
It is determined whether it corresponds to VL. In the figure, CNT1 is a counter for measuring time, and T is a set time (here, 2 seconds).
c) is shown respectively. That is, when the time when the detection voltage SV exceeds the threshold value continues for 1 (sec) or more, the flag of the corresponding thickness level SVL is set. In the figure,
The case where the thickness level SVL is 1 is shown as a representative, but the same processing is performed when the thickness level SVL is 2 to 7.

Next, it is determined whether a start condition is satisfied. If the start condition is satisfied, the stock sensor S
It is determined which mode is based on the 0 information. When the thickness level SVL is 0, the target values CH and TO including the above-described conventional control are determined, but the detailed flow is omitted.

FIGS. 4 to 7 show the flow for determining the target values CH and TO in the second mode. First, the reference chuff opening CHVR is determined from the value of CH0−0.4 × SPL, and the reference torsion speed TOVR is determined from the value of TO0−100 × SPL. Then, the target values CH and TO are determined by correcting them at the thickness level SVL. By the way, when the chaff opening reaches the upper limit CHMAX, the vehicle speed level SPL
Alternatively, even if the thickness level SVL becomes large, the target value TO of the wheel rotation speed is not made large. In the figure, C
M is the previous target value of the chaff opening, TM is the previous target value of the towing speed, CHMIN is the lower limit of the chaff opening, TOM
AX indicates the upper limit of the toy rotational speed, and TOMIN indicates the lower limit of the toy rotational speed.

FIG. 8 shows a flow for determining the target values CH and TO in the first mode and the third mode. First, the first mode flag is checked to determine whether the mode is the first mode or the third mode. In the first mode, the maximum chaff opening degree CH0
And the stock sensor S0 is turned on.
Are the target values CHE and TOE at the time of the change from OFF to OFF. Then, the target values CHE and TOE are set to the thickness level S.
The target values CH and TO are determined by correcting with VL.

After the two target values CH and TO have been determined, the motor M1 for adjusting the distance and the motor M1 for adjusting the air flow rate are adjusted so that the opening degree of the chaff and the number of revolutions of the torsion become the target values CH and TO.
Activate 2 If the start condition is not satisfied,
The first mode flag is set, and it is determined whether the mode is the wet mode. The determination of the target value in the wet mode is omitted here. The wet mode is determined when the set voltage of the chaff opening setting potentiometer P2 is 4.2 or more.

[Alternative Embodiment] In the above embodiment, the case where the present invention is applied to a combine is shown, but the present invention can also be applied to a harvester or the like. In the above-described embodiment, the processing material supply amount is detected based on the vehicle speed. However, the processing material supply amount may be detected based on the thickness of the grain transported to the handling room A. The specific configuration of the supply amount detection unit S1 can be variously changed. .
Further, in the above embodiment, the case where the target value obtained by the information of the supply amount detecting means S1 is corrected by the information of the thickness detecting means S2, but the target value obtained by the thickness detecting means S2 is supplied. Correction is performed based on the information of the amount detection means S1,
The control form using the information of the two detecting means S1 and S2 can be variously changed, such as obtaining a target value from the information of S2 using a fuzzy rule. In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a block diagram of a control configuration.

FIG. 2 is a flowchart of a control operation;

FIG. 3 is a flowchart of a control operation.

FIG. 4 is a flowchart of a control operation.

FIG. 5 is a flowchart of a control operation.

FIG. 6 is a flowchart of a control operation.

FIG. 7 is a flowchart of a control operation.

FIG. 8 is a flowchart of a control operation.

FIG. 9 is a schematic side view of the combine.

FIG. 10: Transmission system diagram

FIG. 11 is a cutaway side view of the threshing apparatus.

FIG. 12 is a cutaway side view showing the configuration of the chaff sheave.

FIG. 13 is a side view of a main part showing a transmission structure of the toy.

FIG. 14 is a cutaway side view of the input pulley portion of the turret.

FIG. 15 is an explanatory diagram showing a maximum chaff opening with respect to a set voltage of a potentiometer for setting a chaff opening.

FIG. 16 is an explanatory diagram showing a maximum toumi rotation speed with respect to a set voltage of a toumi rotation speed setting potentiometer.

FIG. 17 is an explanatory diagram showing a correspondence between a vehicle speed and a vehicle speed level.

FIG. 18 is an explanatory diagram showing a correspondence relationship between a detection voltage of a thickness sensor and a thickness level.

FIG. 19 is an explanatory diagram showing a relationship between a thickness level and a target value of a chaff opening degree in a first mode.

FIG. 20 is an explanatory diagram showing a relationship between a thickness level and a target value of the torsion rotation speed in the first mode.

FIG. 21 is an explanatory diagram showing a relationship between a thickness level and a target value of a chaff opening degree in a second mode.

FIG. 22 is an explanatory diagram showing the relationship between the thickness level and the target value of the torsion rotation speed in the second mode.

FIG. 23 is an explanatory diagram showing a relationship between a thickness level and a target value of a chaff opening degree in a third mode.

FIG. 24 is an explanatory diagram showing a relationship between a thickness level and a target value of the torsion speed in the third mode.

[Explanation of symbols]

 15 Swing sorting plate A Handling room B Sorting device S1 Supply amount detecting means S2 Thickness detecting means 100 Control means

 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-52-61564 (JP, A) JP-A-63-66449 (JP, U) JP-B-63-44328 (JP, B2)

Claims (1)

(57) [Claims] 1. A sorting control device for a threshing device provided with a control means (100) for automatically adjusting the processing capacity of a sorting device (B) for sorting and processing a processed material supplied from a handling room (A). The supply amount detecting means (S1) for detecting the supply amount of the cereal stalk to the handling room (A), and the thickness of the processed material on the swinging sorting plate (15) provided in the sorting device (B). And a thickness detecting means (S2) for detecting the detection amount. The control means (100) controls both the detection information of the supply amount detecting means (S1) and the detection information of the thickness detecting means (S2). And a sorting control device for a threshing device configured to automatically adjust the sorting device (B) to the target processing capability while obtaining a target processing capacity based on the target processing capacity.