JP2613690B2 - 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 In a sorting control device for a threshing device such as a combiner, an optimum relationship is established between the thickness of a processed material on an oscillating sorting plate provided in the sorting device and the processing capability of the sorting device. Since the sorting can be performed, it is general to adjust the processing capacity of the sorting device so that the above-mentioned appropriate relationship is obtained according to the thickness of the processed material. By the way, in adjusting the processing capacity of the sorting device in this way, a sensor for directly detecting the thickness of the layer of the processed material may be provided, but a sensor for detecting the amount of cereal culm supplied to the handling room is provided. A sensor may be used instead. Conventionally, only one of a sensor for directly detecting the thickness of a layer of a processed material and a sensor for detecting an amount of cereal culm supplied to a handling room is provided, and the processing capacity of the sorting device is determined based on the detection information of the sensor. Is automatically adjusted.

[0003]

In the control for automatically adjusting the processing capacity of the sorting device, it is considered that a relatively large dead time factor is involved. In other words, when only the sensor that directly detects the thickness of the processed material layer is provided and the processing capacity of the sorting device is automatically adjusted, hunting occurs when the supply of grain stalks to the handling room fluctuates. As a result, the response becomes unstable. On the other hand, when the processing capacity of the sorting device is automatically adjusted by providing only a sensor that detects the amount of cereal culm supplied to the handling room, the transient characteristics can be improved, but since the thickness of the processed material layer is not detected, There is a possibility that the relationship between the thickness of the processed material layer and the processing capability of the sorting device deviates from the appropriate relationship. Furthermore,
When the processing capacity of the sorting device is automatically adjusted by providing only a sensor that detects the supply amount of cereal stalk to the handling room, when threshing grain stalks with extremely small attached particles, or when combining For example, when detecting the amount of grain culm supplied to the plant, if the mowing performance is smaller than the cutting performance, the grain culm supply amount is detected despite the fact that the thickness of the actual processed material on the swing sorting plate is small. Since the information is relatively large, the processing capacity of the sorting device is excessively adjusted, and there is a possibility that the amount of straw chips mixed into the mouth is increased. The present invention has been made in view of the above circumstances, and an object of the present invention is to eliminate the above-mentioned conventional drawbacks and to appropriately and automatically adjust the processing capability of a sorting device.

[0004]

In order to achieve the above-mentioned object, the present invention provides a threshing apparatus sorting control apparatus comprising: a feed rate detecting means for detecting a feed rate of cereal stalks to the handling room; Thickness detecting means for detecting the thickness of the processed material on the swing sorting plate provided in the apparatus, and the control means,
Based on the detection information of the supply amount detection means and the thickness detection means, determine the target processing capacity, automatically adjust the processing capacity of the sorting device to the target processing capacity, and,
When the detection information of the thickness detecting means is smaller than the set thickness, the processing capacity of the sorting device is adjusted based on the detection information of only the thickness detecting means regardless of the detection information of the supply amount detecting means. The point is that it is configured.

[0005]

According to the characteristic configuration of the present invention, the control means obtains the target processing capacity based on the detection information of the supply amount detecting means and the thickness detecting means, and automatically sets the processing capacity of the sorting device to the target processing capacity. Adjust. 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 material on the oscillating sorting plate to be sorted and the processing capability of the sorting device from largely deviating from an appropriate relationship. , The steady-state characteristics can be improved. In addition, by feeding forward the detection information of the supply amount detection means, even when the supply amount of cereal stalk to the handling room fluctuates due to, for example, a change in vehicle speed, the fluctuation information is given in advance. By obtaining an appropriate target processing capacity in advance, the possibility of occurrence of hunting can be reduced and the transient characteristics can be improved. Further, when the detection information of the thickness detecting means is smaller than the set thickness, the control means reduces the processing capacity of the sorting device regardless of the detection information of the supply amount detecting means, thereby controlling the processing on the swing sorting plate. Adjust so that the thickness of the object is large. Thus, the thickness of the processed material on the swinging sorting plate and the processing capability of the sorting device can be brought close to an appropriate relationship.

[0006]

As described above, the steady and transient characteristics can be improved, so that the relationship between the thickness of the processed material layer and the processing capability of the sorting device can be maintained as appropriate as possible, and the amount of adhered particles is extremely small. In the case of threshing grain culm, or in the case of trimming less than the cutting performance when detecting the grain culm supply amount to the handling room based on the vehicle speed in the combine, etc., the thickness of the processed material on the rocking sorter plate And the processing capability of the sorting device can be brought close to an appropriate relationship, and the processing capability of the sorting device can be appropriately and automatically adjusted.

[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 transmitted to the input pulley 34 via the transmission belt 40 is changed in speed and can be transmitted to the rotating shaft 33. Further, a rotation speed sensor S3 for detecting the rotation speed of the torsion 16 is provided.

Next, a control configuration for adjusting the processing capacity of the sorting device B 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, and a
Speed sensor S3, a threshing switch S4 for detecting the on / off of the threshing clutch 11, a back switch S5 for detecting that the transmission 10 has been operated to the reverse side, and selecting whether the processed material is rice or wheat. Selection switch S6, engine E
Speed sensor S7, potentiometer P1 for detecting the chaff opening, potentiometer P2 for setting the chaff opening CH0 for setting the maximum chaff opening CH0, and the maximum towing speed T
Potentiometer P for toumi rotation speed setting to set O0
3 are connected. Then, the control device H, based on the information set and stored in advance and various input information,
The operation of the motor M1 for adjusting the interval and the motor M2 for adjusting the air flow rate is controlled. 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. That is, the potentiometer P2 for setting the opening degree of the chaff and the potentiometer P3 for setting the rotation speed of the tongue correspond to the setting means for individually changing and setting the processing capacity of the swing selection plate 15 and the air blowing amount of the tongue 16. 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) indicates the fully closed state (CHMIN).
5 (V) corresponds to full open (CHMAX). by the way,
The grain culm supply amount to the handling room A increases as the cutting speed increases, and may be in a proportional relationship with 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. Further, as shown in FIG. 18, the detection voltage SV of the thickness sensor S2 has eight levels SV.
L. 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 wheel 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 wheel rotation speed TOVR are corrected based on the thickness level SVL, and the target value of the chaff opening as the target processing capacity is obtained. CH and the target value TO of the towing speed are obtained. Then, the motor M1 for adjusting the distance and the motor M2 for adjusting the air flow rate are operated so that the chaff opening and the toy rotation speed become both target values CH and TO, and the processing capacity of the sorting device B is set to the target processing. It automatically adjusts to your abilities. By the way, the reference chaff opening degree CHVR is CH0−
0.4 × SPL, the standard TOMI rotation speed TOVR is TO0−
It is determined from the value of 100 × SPL. Note that the setting voltage of the chaff opening setting potentiometer P2 is less than 4.2 (V),
Threshing speed is over 500 (rpm), threshing switch S
The following control is started when each condition of ON of 4 is satisfied. 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, the chaff opening target value CHVR-1.6 when the thickness level SVL is 1 corresponds to the case where the vehicle speed level SPL is 4. That is, the processing is performed with the vehicle speed SP set to 0. That is, the case where the thickness level SVL is 1 corresponds to the case where the thickness is smaller than the set thickness, and in this case, the processing capability of the sorting device B is adjusted based on the detection information of only the thickness sensor S2 regardless of the vehicle speed SP. It has become. When the thickness level SVL is 4 or more, the target values CH and TO are not changed to the small side. Also, 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 CHVR and the reference torsion rotational speed TOVR,
Conventional control for correcting the target values CH and TO based on the engine speed or the like is performed (for example, when the vehicle speed is rapidly reduced, the target values CH and TO are not corrected until a predetermined time elapses. When the number of rotations is reduced by more than the number of rotations, 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. FIG. 23 shows the same relationship as described above in the third mode.
And FIG. Here, CHE and TOE are the two target values CH, when the stock sensor S0 changes from ON to OFF.
It is TO. Here, when the state in which the thickness level SVL is 1 continues for a predetermined time, 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), the target value TO of the torsion speed is set to 850 (T
OE). Further, the output is stopped until a predetermined time elapses after the stock sensor S0 is turned 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 values of the reference chaff opening degree CHVR and the reference wheel rotation speed TOVR are obtained. 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 other words, even when the processing amount of the processed material or the detection information of the processed material thickness becomes large when the processing capacity of the swing sorting plate 15 has reached the upper limit, the air blowing amount of the tongue 16 is not adjusted to the larger side. It has become. In the figure, CM is the previous target value of the chaff opening, T
M is the previous target value of the toy speed, CHMIN is the lower limit of the chaff opening, TOMAX is the upper limit of the toy speed, TOM
IN indicates the lower limit of the rotation speed of the wheel.

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. 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 the front page (56) References JP-A-2-109913 (JP, A) JP-A-61-192221 (JP, A)

Claims (1)

(57) [Claims] 1. Sorting of the processed material supplied from the handling room (A)
Control to automatically adjust the processing capacity of the sorting device (B) to be processed
Control device for threshing equipment provided with means (100)
A location, the threshing chamber and the supply amount detecting means for detecting the culms supply to (A) (S1), said sorting device oscillating sorting plate which gave provided in (B) (15) on the treated thickness detecting means for detecting the thickness of the (S2) is provided, said control means (100), the supply amount detecting means (S1) and said thickness detecting means (S
2) When the target processing capacity is obtained based on the detection information
In both cases, the processing capacity of the sorting device (B) is
When the thickness is automatically adjusted to the capacity and when the detection information of the thickness detecting means (S2) is smaller than the set thickness, the thickness detecting means (S1) regardless of the detection information of the supply amount detecting means (S1).
2) A sorting control device for a threshing device configured to adjust the processing capacity of the sorting device (B) based on only the detected information.