JP2624398B2 - Threshing and sorting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oscillating sorting plate for sorting processed products after threshing, a collecting means for collecting the sorted processed products leaking from the oscillating sorting plate, and the oscillating device. The present invention relates to a threshing / sorting apparatus provided with a control means for changing and adjusting the degree of opening of a processed material leaking from a dynamic sorting plate.

[0002]

2. Description of the Related Art In a threshing apparatus such as a combine or the like, a rocking sorter plate which separates a processed product after threshing into grains and straw chips by rocking is widely used. And, by changing and adjusting the processed material leakage opening degree of the swing sorting plate based on the grain culm supply amount to the handling room, the layer thickness of the processed material on the swing sorting plate is maintained in an appropriate range, Thus, control for maintaining appropriate sorting accuracy is performed.

[0003] Sorted processed materials that have leaked from the swinging sorting plate are collected by a collecting means. For example, the grain collected from the first mouth is sent to and stored in a Glen tank or the like, and the mixture of the grain and straw waste collected from the second mouth is returned to a swing sorting plate or a handling room.

[0004] When the threshing device is stopped, the rotation of the handling cylinder is stopped, and the operations of the swing sorting plate and the collecting means are also stopped. Therefore, at the end of the operation, the operation is continued so that the operation is continued for a while even if the supply of the grain stalk to the handling room is lost, and the threshing device is stopped after the swing sorting plate and the processed material of the collecting means are gone.

[0005] However, when the threshing device is temporarily stopped, the threshing device may be stopped as soon as the supply of the grain stalk to the threshing device is lost. For example, in a harvesting operation using a combine, the threshing device is temporarily stopped from the end of cutting to the start of the next cutting. This is because the layer thickness of the processed material on the swinging sorting plate at the end of cutting is maintained until the next cutting starts, thereby avoiding a temporary deterioration in the sorting accuracy at the start of cutting.

[0006]

However, with the stop of the threshing apparatus, the control for changing the opening degree of the processed material leaking of the swing sorting plate is also stopped, and the opening degree at that time is maintained until the threshing apparatus is operated again. Because the material is maintained, the processed material on the swinging sorting plate may fall naturally. For example, in the case of a combine, the processed material that naturally falls due to the vibration during traveling until the next mowing starts increases, and the dropped processed material accumulates in the collection unit.

As a result, when the threshing apparatus is operated again, the collecting means may be clogged. or,
Temporary deterioration of the sorting accuracy also occurs due to the once reduced thickness of the processed material on the swing sorting plate. The present invention has been made in view of such circumstances, and has as its object to solve the above-described problem when the threshing device is temporarily stopped.

[0008]

SUMMARY OF THE INVENTION A threshing / sorting apparatus according to the present invention recovers an oscillating sorter plate for sorting processed products after threshing and a sorted processed product leaked from the oscillating sorter plate. A collecting means, and a control means for changing and adjusting the opening degree of the processed material leaking of the oscillating sorting plate, wherein the first characteristic configuration is such that the control means determines whether or not the threshing device is operating. This is characterized in that, based on the detection information of the threshing operation detecting means for detecting the threshing operation, the processing object leakage opening is completely closed as the threshing device is stopped.

In a second characteristic configuration, in the first characteristic configuration, the control means stores an opening before the processing object leakage opening is fully closed, and operates the threshing apparatus again. When the processing object leakage opening degree is restored to the stored opening degree.

[0010]

According to the first characteristic configuration, the control means fully closes the processing material leakage opening of the swing sorting plate as the threshing device is stopped. The natural fall of the is eliminated. When the threshing apparatus is operated again, the fully closed state is released, and the automatic adjustment control of the processing object leakage opening degree is restarted.

According to the second characteristic configuration, when the threshing device is operated again, the processing object leakage opening is returned from the fully closed state to the stored opening before the threshing device was stopped. As a result, when threshing is resumed, the automatic adjustment control of the processing object leakage opening is restarted with the appropriate opening according to the thickness of the processing object as an initial value. In addition to this control, if the automatic adjustment control of the processed material leakage opening is masked for a predetermined time, the sorting accuracy at the time of resuming threshing can be further stabilized.

[0012]

As described above, the spontaneous fall of the processed material on the swinging sorting plate when the threshing apparatus is temporarily stopped is eliminated, so that the clogging state of the collecting means is eliminated. In addition, since the thickness of the processed material on the swinging sorting plate is maintained without decreasing even during the temporary halt of the threshing device, it is possible to avoid a temporary deterioration in sorting accuracy when threshing is resumed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a combine threshing apparatus will be described below with reference to the drawings.

The self-removing type combine shown in FIG. 2 includes a pair of right and left crawler traveling units 1, a threshing unit 2, a control unit 3, a cutting unit 4, and the like. The cutting unit 4 includes a weeding tool 5, an apparatus 6 for raising planted grain culms, and a cutting blade 7.
Transported to

The power transmission system is configured as shown in FIG. The power of the engine E is transmitted to the threshing device 2 via the threshing clutch 10 and transmitted to the transmission section 13 of the crawler traveling device 1 via the traveling clutch 11 and the hydraulic continuously variable transmission 12. Power is transmitted to the mowing unit 4 from the transmission unit 13 via the mowing clutch 14. As a threshing operation detecting means for detecting whether or not the threshing apparatus 2 is operating, a threshing switch SW1 for detecting the on / off state of the threshing clutch 10 is provided.

As shown in FIG. 4, the threshing apparatus 2 comprises
5, a feed chain 16 for supplying the stalks supplied from the mowing unit 4 to the handling room, a cross flow fan 17 for discharging dust, and a toy 18 for sorting the processed material after threshing.
And a swing sorting plate 19, and a first port 20 and a second port 21 as a collecting means for collecting the processed material after the sorting.

As shown in FIG. 7, a mechanism is provided at the upper part of the feed chain 16 for pressing the grain culm to be conveyed downward and holding it with the feed chain 16. That is,
A plurality of pressing members 34 connected in the transport direction by a pivot shaft P
a and 34b are individually elastically biased by a coil spring 34c. A potentiometer S1 for detecting the upward displacement of the pivot P between the first pressing member 34a and the second pressing member 34b from the front is provided.

The thickness of the grain culm sandwiched between the feed chain 16 and the pressing members 34a, 34b is detected by the potentiometer (hereinafter referred to as a culm thickness sensor) S1. Since the feed speed of the feed chain 16 is kept substantially constant, the detection value of the culm thickness sensor S1 is proportional to the amount of grain culm supplied to the handling room A. That is, the culm thickness sensor S1 corresponds to a means for detecting the amount of grain culm supplied to the handling room A.

The cereals supplied to the handling room A are threshed by the rotation of the handling drum 15. A receiving net 22 is provided in the lower part of the handling room A, and a single grain of the processed material after threshing leaks from the receiving net 22 to the swing sorting plate 19. The processed material that could not be leaked from the receiving net 22 falls to the swing sorting plate 19 from the rear end of the receiving net 22.

The swing sorting plate 19 is composed of a grain pan 23 located above the tongue 18, a chaff sheave 24 located behind it, a grain sheave 25 located below it, and the like. The first port 20 and the second port 21 are provided with screw conveyors, respectively, and the kernels leaking from the grain sieve 25 are collected from the first port 20 and stored in a tank or the like. The mixture of the grain and the straw chips dropped from the rear end of the chaff sheave 24 or the rear end of the Glen sheave 25 is collected from the second port 21 and returned to the swinging sorting plate 19.

The chaff sheave 24 is, as shown in FIG.
A plurality of strip-shaped members 24a juxtaposed in the processing object transfer direction
Are rotatably attached to the left and right side plates. When the link 25 pivotally attached to the lower end of each band-shaped member 24a is moved in the front-rear direction, the angle of each band-shaped member 24a is simultaneously changed. as a result,
While maintaining the parallelism of each strip-shaped member 24a, the adjacent interval t
(Hereinafter referred to as “chaff sheave opening”). The opening degree of the chaff sheave corresponds to the processing object leakage opening degree of the swing sorting plate 19.

A sheave motor M1 for electrically changing and adjusting the opening of the chaff sheave is provided, and is connected to the operation rod 25 via a gear-type linkage mechanism 26, a swing arm 27 and a release wire 28. In the drawing, reference numeral 29 denotes a spring for urging the chief sheave to return to the closing side, and S2 denotes a potentiometer type chief sheave opening sensor for detecting the chief sheave opening from the rotation angle of the swing arm 27. The sheave motor M1 is switched between forward rotation and reverse rotation by changing the polarity of the applied voltage.

The turtle 18 is for blowing off the straw debris on the oscillating sorting plate 19, and the wind power is used to open the fan case cover 18a as shown in FIG. This is done by changing In other words, the larger the degree of opening of the turtle exhaust air, the greater the amount of air escaping from the opening, and the smaller the amount of wind (hereinafter referred to as storm wind) exerted on the processed material on the swing sorting plate 19.

As shown in FIG. 6, the adjustment of the turtle exhaust air opening is performed by a turtle motor M2. As in the case of the sheave motor M1, by changing the polarity of the applied voltage to rotate the torsion motor M2 forward or backward, the fan case cover 18a opens and closes via the linkage mechanism 30, the swing arm 31, and the rods 32 and 33. In the figure, S3 is a swing arm 31
Is a potentiometer-type exhaust air opening sensor for detecting the rotation angle of the air outlet as an air exhaust opening.

As shown in FIG. 1, the control means H provided with a microcomputer controls the sheave motor M by changing the chief sheave opening degree and the turtle exhaust air opening degree (toumi wind force).
1 and the driving of the torsion motor M2. The control means H includes the aforementioned threshing switch SW1,
Detection information of the culm thickness sensor S1, the chaff sheave opening sensor S2, and the turtle exhaust air opening sensor S3 is input.

The control means H controls such that the chaff sheave is opened and the wind power of the turtle is increased as the grain culm supply amount to the handling room A is larger during the operation of the threshing apparatus 2 based on the detected information. In general, the amount of processed material after threshing increases in proportion to the amount of grain culm supplied, so that the layer thickness of the processed material on the oscillating sorting plate 19 is maintained in an appropriate range by increasing the sorting processing capacity accordingly. This is to maintain appropriate sorting accuracy.

When the threshing device 2 is stopped, the rotation of the handling drum 15, the operation of the feed chain 16, the rotation of the torsion 18,
At the same time as the swing of the swing sorting plate 19 stops, the screw conveyors at the first opening 20 and the second opening 21 also stop. The automatic adjustment control of the chaff sheave opening and the turtle exhaust air opening is also stopped.

When the threshing device 2 is temporarily stopped,
The threshing apparatus 2 may be stopped in a state where the processed material is accumulated on the swinging sorting plate 19. At this time, in order to prevent the treated product on the swinging sorting plate 19 from dropping naturally, the control means H Makes the chaff sheave opening fully closed. First mouth 20 and second mouth 2
This is to prevent clogging of the processed material in No. 1 and to avoid a temporary deterioration in sorting accuracy when the operation of the threshing apparatus 2 is restarted. This control will be described based on the flowchart of FIG.

The threshing device 2 is stopped and the threshing switch SW1
Is changed from on to off, first, the chief sheave opening at that time is stored in the first routine (process (a)). From the next time, the chaff sheave opening is fully closed (process (b)). If the operation of the threshing device 2 is restarted and the threshing switch SW1 is turned on from off, the chaff sheave opening is returned to the stored opening in the first processing (process (c)). From the next time, the opening degree of the chaff sheave is adjusted based on the information of the culm thickness sensor S1 (process (d)). It should be noted that although not shown in the drawing, the opening of the turtle exhaust air is similarly adjusted.

Hereinafter, another embodiment will be described. In the processing when the operation of the threshing device 2 is restarted, the opening degree of the chaff sheave may be returned to the stored opening degree, and then the opening degree may be maintained for a predetermined time. That is, the automatic adjustment of the chaff sheave opening based on the information of the culm thickness sensor S1 is masked for a predetermined time.

When the operation of the threshing device 2 is restarted,
The control for returning the chaff sheave opening to the stored opening, that is, the opening before the threshing device is stopped may be omitted. In this case, the chaff sheave is gradually opened from the fully closed state by the automatic adjustment of the chaff sheave opening based on the information of the culm thickness sensor S1.

The swing sorting plate of the above embodiment is provided with a chaff sheave, and the opening degree of the chaff sheave corresponds to the opening degree at which the workpiece is leaked. However, the present invention is not limited to this, and for example, a shielding called a slide Glen pan The present invention can also be applied to a swing sorting plate of a type in which the filtration area where the processed material leaks is adjusted by moving the plate.

Incidentally, reference numerals are written in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a block diagram of a combine threshing and sorting apparatus according to an embodiment of the present invention.

FIG. 2 is a side view of the combine.

FIG. 3 is a diagram showing a power transmission system of the combine.

FIG. 4 is also a perspective view showing a combine threshing apparatus.

FIG. 5 is a schematic diagram of a chaff sheave opening adjustment mechanism of the threshing device.

FIG. 6 is a schematic diagram of a mechanism for adjusting the degree of opening of the turtle exhaust air of the threshing apparatus.

FIG. 7 is a side view of a culm thickness supply unit of the threshing apparatus.

FIG. 8 is a flowchart of threshing sorting control.

[Explanation of symbols]

 2 Threshing device 19 Swing sorting plate 20, 21 Recovery means H Control means SW1 Threshing operation detection means

Continued on the front page (72) Inventor Suezo, 64 Ishizukita-cho, Sakai City, Osaka, Japan Inside Kubota Sakai Factory (72) Inventor Toshio Tominaga 64, Ishizukita-machi, Sakai City, Osaka Prefecture, Inside Kubota Sakai Factory (72) ) Inventor Takao Mizoguchi 64 Ishizukitamachi, Sakai City, Osaka Prefecture Inside Kubota Sakai Works (56) References JP-A-60-199319 (JP, A)

Claims (2)

(57) [Claims] 1. An oscillating sorting plate (19) for sorting processed products after threshing, and collecting means (20, 21) for collecting the sorted processed products leaked from the oscillating sorting plate (19). )When,
A threshing / sorting apparatus provided with a control means (H) for changing and adjusting the processed material leakage opening of the rocking / sorting plate (19),
The control means (H) is based on the detection information of the threshing operation detecting means (SW1) for detecting whether or not the threshing apparatus (2) is operating, and as the threshing apparatus (2) is stopped, A threshing sorter configured to fully close the leak opening. 2. The control means (H) stores an opening degree before the processing object leakage opening degree is fully closed, and performs the processing when the threshing apparatus (2) is operated again. 2. The threshing / sorting apparatus according to claim 1, wherein the apparatus is configured to return the object leakage opening to the stored opening.