JP2524670Y2 - Detected amount of material to be sorted in grain sorting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an object to be sorted detected in a grain sorting device provided in a combine, a harvester or the like.

[Problems to be Solved by Conventional Techniques and Inventions] Generally, in this seed grain sorting apparatus, the rotation speed of Karamin, the amount of plugging of the rocking sorter, and the degree of opening of the fin, according to the amount of the material to be sorted. It is necessary to adjust the sorting conditions such as, but conventionally, these adjustments have been performed manually by the operator, so it was not troublesome and complicated, and there was a fear that adjustments were forgotten or incorrect. . Therefore, it is proposed to automatically adjust each of the above-described sorting conditions based on a detection value of a detection object that detects an amount of a sorting object. However, when trying to detect the amount of the sorting object that has been threshed and dropped on the top of the swinging sorting body, the detection body may interfere with the sorting object and hinder the transfer action of the swinging sorting body, and Detection errors occur due to the sorted objects that have been stagnated due to the impeded transfer, and the detection accuracy is a problem.

Another factor in the decrease in accuracy is that the object to be sorted is deposited on the upper surface of the object and the object tends to sink.To avoid this, it is necessary to prevent the object from falling above the object. It is necessary to separately provide a cover member for avoiding this, and there is a problem to be addressed in this regard.

[Means for Solving the Problems] The present invention has been conceived in view of the above-described circumstances, and has as an object to provide an object for detecting an amount of material to be sorted in a grain sorting device capable of eliminating these disadvantages. In order to provide a sorted object amount detector for detecting the amount of the sorted object that has dropped from the receiving net and dropped on the swinging sorting body, the sorted object amount detector is floated on the surface of the sorted object, The float is formed by using a float having an arcuate upper surface and a rod having the float attached to the distal end and having a base end pivotally supported so as to be vertically swingable. The swing sorting body is characterized in that the float is disposed on the lower side in the transport direction and the rod is located on the upper side with respect to the transport direction of the sorting object.

According to the present invention, the detection accuracy of the object to be sorted detected can be improved by this configuration.

Next, an embodiment of the present invention will be described with reference to the drawings.
In the drawings, reference numeral 1 denotes a top-throwing threshing machine, which includes a feed chain 2, a pinching rail 3, a handling cylinder 4, a receiving net 5, a Karamin 6, a processing cylinder 7, a dust fan 8, First funnel 9,
It is the same as the conventional case that the apparatus is configured by using various member devices such as the second funnel 10, the fryer cylinder 11, the second reduction cylinder 12, the swing sorter 13, and the like.

In the embodiment, the swing sorting body 13 swings and sorts the discarded material dropped from the receiving net 5 by swinging the upper and lower two-stage swing sorting units 14 and 15 and swinging the sorting material transfer end side. The rack 16 is used. On the lower surface of the receiving net 5, an upper swing sorting unit
A partition plate 16 formed of a rubbery elastic body is hung so as to partition left and right of the sorted object moving start side, and a right side portion (area deviated toward the feed chain 2 side) partitioned by the partition plate 16 is separated. ) Is a discharge from the discharge port 12a of the second reduction cylinder 12 disposed on the left side of the sorting room, a dumped material forcibly brought to the right by the paddy pad 17 disposed on the left, Further, it is an area that is not affected as much as possible by a large amount of dropped articles from the receiving network 5. And here, a grain amount sensing float 18 is provided. The grain amount sensing float 18 includes a float 18b, which is formed of a material having a lower specific gravity than the sorted material so that it floats on the surface of the sorted material,
8a is provided at the tip, but the shape of the float portion 18b may be a spherical shape so that the sorted material falling with the upper surface in an arc shape does not accumulate on the upper surface, but as shown in FIG. If the transfer start end side of the sorting body 13 is formed in an eggplant shape that is sharpened and becomes wider toward the end side, the flow of the sorted matter is not obstructed, and the sinking is reduced to perform accurate grain amount detection. In order to further reduce the sinking, the bottom surface may be formed in a ship bottom shape as shown in FIG.

The sensing float 18 is in a front-rear direction, in which the base end of the sensing rod 18a extends forward, and the float 18b is located rearward,
In other words, it is arranged facing the direction in which the sorted material flows,
The base end of the sensing rod 18a is swingably supported on the machine frame 1a side. In other words, the front end of the swing sorting body 13 and the machine casing 1a
And a closing plate 19 made of a rubbery elastic body.
The boss support is formed with a through hole 1b in the machine frame 1a, and a rubber elastic body is formed in the through hole 1b. Body 20 is fastened. The sensing rod 18a penetrates tightly into the boss hole of the boss support 20, whereby the sensing float 18 is swingably supported on the machine body side. A substantially U-shaped bracket 1c is integrally fixed to the machine frame 1a, and a grain size detection sensor 21 is attached to the bracket 1c. The sensor rod 21a interferes with the tip of the sensing rod 18a penetrating the boss support 20 to detect a change in the vertical swing of the sensing float 18 based on a change in the amount of sorted material. More brackets
1c is provided with a stopper guide 22. The stopper guide 22 is provided with a long groove 22a into which the sensing rod 18a is loosely fitted. Then, the sensing rod 18a is stopped in the left-right direction to guide the swinging motion in the vertical direction. To determine the position,
This position is set so as to be slightly higher than when the swing sorting body 13 reaches the swing upper end position and not interfere with the swing sorting body 13.

The Karamin shaft 6a of the Karamin 6 is rotatably supported by the machine frame 1a, and a speed change pulley 23 is provided at one end of the Karamin shaft 6a. The transmission belt 6b is connected to the speed change pulley 23, an engine side drive pulley (not shown), and a driven pulley 24.
Is suspended, but the tension arm 26a pivotally supported on the pulley shaft 24a of the driven pulley 24 is oscillated and the belt tension is adjusted by the tension pulley 26 provided at the distal end. The variable speed pulley 23 includes a movable half pulley 23a
It moves in the axial direction against 3b, whereby the diameter of the pulley is changed, so that the rotational speed can be adjusted steplessly.
The swing of the tension pulley 26 is controlled by the tension arm.
The arm 26c protruding from the boss tube 26b of the 26a can be swung by pushing and pulling an inner wire 26d described later. Further, at the other end of the Karamin shaft 6a, a Karamin rotation speed detection sensor 25 is provided. 26e is an outer receptacle.

In addition, the following consideration is given to the swing sorting body 13. In other words, the upper swing sorting unit 14 is configured such that the sorting start end side, which is separated left and right by the partition plate 16, has a start end side sorting unit 14 a made of a non-perforated corrugated plate, and an end side sorting unit 14 b configured using a sorting fin 27. It is constituted by. This sorting fin 2
On the back of 7, upper and lower pins 27a and 27b are provided so as to protrude from both left and right ends, but the upper pin 27a and the lower pin 27b are rotatably mounted on the upper and lower support plates 27c and 27d, respectively. Axle-mounted. The upper plate 27c is integrally fixed to a bracket 13b fixed to the side plate 13a of the swing sorting body 13, and the lower plate 27d is supported by the bracket 13b so as to be slidable in the front-rear direction. An arc-shaped guide hole 13c is formed in the bracket 13b.
Is a lower pin selected from a part of the sorting fins 27 (in the embodiment, the ones at the beginning and end in the sorting direction).
27b is loosely fitted. Furthermore, upper pin 2 on the sorting start end side
A base end of a swing plate 27e is integrally fixed to one end of 7a, and an operating pin 27f is fixed to a distal end of the swing plate 27e. The operating pin 27f penetrates an arc-shaped guide hole 13d formed in the side plate 13a, and further projects outside the machine through a window 1e opened in the fuselage side plate 1d.The protruding end is connected to the inner wire 27g. I have. And inner wire 2
The upper pin 27a is forcibly rotated by a push-pull operation described below of 7g, whereby the sorting fin 27 is moved upward by the upper pin 27a.
It swings with the fulcrum 27a as a fulcrum so that the opening and closing of the gap between the adjacent sorting fins 27 can be adjusted. In addition, 27h is an outer receiver, and 27i is a return ammunition.

Further, the lower swing sorting section 15 is constituted by a starting end sorting section 15a formed by a corrugated sheet on the sorting starting end side and a sorting end section 15b formed by a crimping net 28 on the sorting end side. However, the corrugated plate is divided into a fixed plate 29 fixed to the left and right side plates 13a and a closing plate 30 movably mounted in the front-rear direction. In other words, the left and right side edges of the closing plate 30 are side plates.
It is guided by a guide rail 13e provided on 13a so that it can move in the front-rear direction. Bottom plate 13f of swing sorter 13
Is provided with a drive motor 31. A drive gear 31b output from the drive motor 31 through a speed reduction unit 31a includes a blocking plate.
Rack 30a fixed to the bottom of 30 via bracket 30b
Are engaged. The closing plate 30 is moved in the front-rear direction by forward / reverse driving of a driving motor 31 which will be described later.
The upper part of the crimping net 28 can be displaced and moved from a position accommodated in a lower part of the crimping net 28 to a position closing the upper side of the crimping net 28. Further, one end of an inner wire 30c is connected to the bracket 30b. The other end of the inner wire 30c is connected to the side return plate 13a via a support bracket 13f to a supporting return spring 30d. A stroke sensor is used to detect the displacement (blocking amount) of the blocking plate 30. The configured closing amount detection sensor 32 is provided in parallel with the return bullet 30d. In addition, 31c is a rack guide.

Reference numeral 33 denotes a bracket integrally attached to the fryer 11, and the first and second swing plates 3 are attached to the bracket 33.
4 and 35 are swingably supported via support shafts 34a and 35a, respectively. The first swinging plate 34 is connected with an inner wire 26d for adjusting the rotation speed of the kara 6 and the second swinging plate 35 is connected with an inner wire 27g for adjusting the opening of the sorting fin 27. Furthermore, both plates 3
Gears 34b and 35b are engraved on the peripheral portions of the gears 4 and 35, and the gears 34b and 35b correspond to the corresponding drive motors 36 and 37, respectively.
Output gears 36a, 37a, and drive motors 36, 37
Each of the inner wires 26 is controlled based on the drive control described later.
d, 27g push-pull operation is performed, the rotation speed of Karamin 6 is adjusted,
The opening degree of the sorting fin 27 is automatically adjusted. Further, a pin 35c protruding from the plate 35 is connected to a sensor rod 38a of a detection sensor 38 fixed to the bracket 33.
The plate 35 is configured to be able to detect the swing amount of the plate 35, whereby the detection sensor 38 is connected to the sorting fin 27.
Of the opening degree detecting sensor of the present invention. And both plates
The limit switches 34d, 35d,
34e and 35e are provided respectively, and are configured to detect that the swing limit position has been reached.

Next, the procedure of drive control of these drive motors 31, 36 and 37 will be described with reference to block circuit diagrams and flowcharts. Reference numeral 39 denotes a control unit configured by using a micro computer unit. The control unit 39 includes the grain amount detection sensor 21, the Karamin rotation speed detection sensor 25, the closing plate amount detection sensor 32, and the fin opening amount. Sensors such as a detection sensor 38, a switching switch 40 for switching between automatic and manual, a switch 41 for setting work conditions, a limit switch 34d, 35d, 34e, 3
Switches and setting devices such as 5e are connected. The control unit 39 is configured to output control commands necessary for actuators such as the drive motors 31, 36, and 37 based on the signals input from the control units, as described later.

That is, the control unit 39 performs a system start based on the engine start, and initialization is performed. When it is determined that the switching switch 40 is set to the automatic position, the main routine of the control system performs a detection value processing control routine for performing data processing based on the detection value from the grain amount detection sensor 21. A condition setting processing routine for performing data processing based on the set signal from the condition setting switch 41, the processed data and the corresponding sensor
Based on the detected values from 32 and 38, a fin opening amount control routine for controlling the opening amount of the sorting fin 27, a Karamin rotation speed control routine for controlling the rotation speed of the Karaoke 6, and a closing amount control of the blocking plate 30 are performed. It is programmed as each subroutine of the closing amount control routine.

First, the procedure of the detection value processing control routine is divided into a description plate 29 and a closing plate 30 which is attached to be movable in the front-rear direction. In other words, the left and right side edges of the closing plate 30 are guided by the guide rails 13e provided on the side plate 13a so as to be movable in the front-rear direction. A drive motor 31 is provided on the bottom plate 13f of the swing sorting body 13, and a drive gear 31b output from the drive motor 31 through the reduction unit 31a includes:
A rack 30a fixed to the bottom surface of the closing plate 30 via a bracket 30b is engaged. The closing plate 30 is moved in the front-rear direction by forward / reverse driving of a driving motor 31 to be described later, and is displaced from a position where it is accommodated below the fixing plate 29 in an overlapping manner to a position where the upper side of the crimping net 28 is closed. It is configured to be movable. Further, one end of an inner wire 30c is connected to the bracket 30b. The other end of the inner wire 30c is supported on the side plate 13a via a support bracket 13f.
Although connected to d, an occlusion amount detection sensor 32 configured using a stroke sensor to detect the displacement amount (occlusion amount) of the occlusion plate 30 is provided in parallel with the return bullet 30d. In addition, 31c is a rack guide.

Reference numeral 33 denotes a bracket integrally attached to the fryer 11, and the first and second swing plates 3 are attached to the bracket 33.
4 and 35 are swingably supported via support shafts 34a and 35a, respectively. In the first swing plate 34, a calculation process of a change amount of the plugging amount of the plugging plate 30, a change range of the opening degree of the selection fin 27, and a detection value of the grain amount detection sensor 21 so as to correspond to these change ranges. A program set has been established.
That is, the work condition setting switch 41 can select three types of stems and stems: “rice (standard)”, “rice (wet material)”, and “wheat”. Looking at rice under normal conditions as a standard, for example, in the case of wheat, there are many culms, but the selectivity is good, and when the rice is a wet material, the conditions are various, such as easy formation of clumps and poor selectivity. Where these conditions are taken into account. First, regarding the opening amount K of the selection fin 27, it is set so that the opening amount can be adjusted in a wide range corresponding to the case of each stem and culm, but as the maximum opening amount of the selection fin 27 for each stem and culm. In the case of rice (standard), the amount of opening is not required to be as large as that of rice (wetting material), and in the case of wheat, the amount of opening is not as large as that of rice (standard). Therefore, the maximum opening degree is set so as to increase in the order of wheat, rice (standard), and rice (wetting material). Also, the minimum opening amount of the sorting fin 27 is set in the same manner from the viewpoint of the sorting ability so that wheat, rice (standard), and rice (wetting material) increase in order.
In this way, the opening adjustment range (Kmin to Kmax) from the minimum to the maximum of the selection fins 27 in each stem is set in advance.

From the same viewpoint, the rotation speed P of the Karamin 6 and the blocking plate 30
With respect to the plugging amount D, a rotation speed adjustment range (Pmin to Pmax) and a plugging amount adjustment range (Dmin to Dmax) from the maximum to the minimum are set in advance in correspondence with each stem.

Further, in the condition setting processing routine, the grain amount detection sensor 21 is used.
A program set is also made for the detection range of. As described above, the grain amount detection sensor 21 detects the amount of the handled material as the grain amount H. In this case, the maximum detection value Hmax is set according to the selected grain type. Is done. That is, the maximum detection value Hmax is determined in advance in the effective detection range from the minimum to the maximum of the grain amount detection sensor 21 (the smaller the lower the selectability, the smaller the detection value is determined as the maximum detection value Hmax), and the maximum detection value Hmax is exceeded. Even if a detection value is input, this is determined as the maximum detection value Hmax.

When the operation condition setting switch 41 is set to any one of "rice (standard)", "rice (wet material)", and "wheat", the corresponding adjustment ranges are set.
If the set adjustment range, for example, the opening degree adjustment range, is used, the amount of change from the maximum value Kmax to the minimum value Kmin is calculated from the maximum detection value Hmax of the kernel amount detection sensor 21 to the minimum detection value Hmin. The program of the condition setting processing routine is set in such a manner as to correspond to the change amount.

Next, a fin opening amount control routine will be described.
This routine is programmed to adjust the opening amount of the sorting fin 27 in accordance with the detected grain amount H, and the fin opening amount detection value K of the fin opening amount detection sensor 38 and the kernel A comparison with the amount detection value H is made. In this case, it is needless to say that the dead zone ΔH is provided to perform the stable control. That is, the fin opening amount detection value K is
In consideration of the dead zone ΔH, it is determined whether the detected value is larger or smaller than the detected grain amount H, and the fin opening degree detected value K is determined.
Is larger (K> H + ΔH), a drive command is issued to the fin opening amount adjusting motor 37 in the direction of decreasing the fin opening amount (that is, sending out the inner wire 27g). The detection value K is small (K <
H−ΔH), a drive command is issued to the fin opening amount adjusting motor 37 in the direction of increasing the fin opening amount (that is, pulling the inner wire 27g), and the two detection values H and K are determined. If it is determined that they match (H−ΔH ≦ K ≦ H + ΔH), a motor drive stop command is output, and
In this way, the control for adjusting the fin opening amount is performed based on the feedback control.

Similarly, a Karamin rotation speed control routine for controlling the rotation speed of Karaoke 6 and a closing amount control routine for controlling the closing amount of the closing plate 30 are set.

In the embodiment of the present invention configured as described above, the sorting conditions such as the opening degree of the sorting fin 27, the rotation speed of the Karamin 6 and the closing amount of the blocking plate 30 are based on the detection value of the grain amount detection sensor 21. Is automatically adjusted by the
The base of the sensing rod 18a extends forward, and the float 18b
Is located on the rear side, that is, the amount of the sorted material is detected based on the vertical swing of the sensing float 18 arranged in the direction in which the sorted material flows. That is, since the sensing float 18 smoothly slides on the surface of the sorting object, the sensing float 18 interferes with the sorting object and oscillates.
Without disturbing the transfer operation of the thirteenth embodiment, it is possible to solve the problem that the sorted material stays and causes a detection error.
As a result, sorting conditions such as the opening degree of the sorting fin 27, the rotation speed of the Karamin 6 and the closing amount of the closing plate 30 can be automatically adjusted based on the highly accurate detection value, and the sorting accuracy and the sorting efficiency are improved.

In addition, the grain amount sensing float 18 is used to discharge the material from the discharge port 12a of the second reduction cylinder 12, the material to be forcibly brought down by the paddy board 17, and the material to be dropped from the receiving net 5 in large quantities. Since it is provided at a position biased toward the feed chain 2 so as not to be affected as much as possible by a dropping object or the like, the detection accuracy can be further improved.

Also, if the float portion 18b of the grain amount sensing float 18 is formed in an eggplant shape in which the grain transfer start end is sharp and the end is wider, the flow of the sorted material is not obstructed and sinking is reduced. Thus, it is possible to more accurately detect the amount of grains.

Further, the float portion 18b is formed of a material having a lower specific gravity than the sorted material so as to float on the surface of the sorted material, and has an arcuate upper surface, so that the sorted material does not accumulate and promotes falling. Therefore, the sinking can be further prevented and the detection accuracy can be improved.

The present invention is, of course, not limited to the above-described embodiment. For example, if the present invention is configured as in the second embodiment shown in FIG. 27, the number of parts can be reduced and the structure can be simplified. . That is, in the second embodiment, a single swing plate 34
In addition, inner wire 26d that adjusts the rotation speed of Karamin 6,
Inner wire 27 for adjusting the opening of the sorting fin 27
g, so that the oscillating plate 35 and the drive motor 37 are not required.
And the rotation speed detection sensor 25 can be dispensed with.

[Effects] In summary, since the present invention is configured as described above, the present invention detects the amount of the material to be sorted in order to automatically adjust the sorting conditions of the sorting means such as Karamin, sorting fins, and blocking plates. However, the object to be sorted amount detector is arranged such that the float is located on the lower side in the transfer direction and the rod is located on the upper side in the transfer direction with respect to the transfer direction of the object to be sorted of the swinging object, so that the swing sorting is performed. The float slides smoothly on the surface of the object to be sorted without opposing the body moving direction.

In addition, since the float has an arc-shaped upper surface, it is possible to prevent the sorted object from falling on the arc surface and accumulating on the float assuming that the sorted object falls on the float. Therefore, the float can be detected in a state where the sorted object is not deposited without providing a regulating member for restricting the sorted object from falling onto the float, so that the sorted object is accumulated. In this way, it is possible to eliminate the problem of causing a detection error, and to automatically adjust the sorting means such as the Karamin, the sorting fin, and the closing plate based on the highly accurate detection value, thereby improving the sorting accuracy and the sorting efficiency.

[Brief description of the drawings]

The drawings show an embodiment of an object for detecting an amount of material to be sorted in a grain sorting apparatus according to the present invention, wherein FIG. 1 is an internal side view of a threshing machine, FIG. 2 is an internal plan view of the same, and FIG. Fig. 4 is a front view of the same, Fig. 4 is a plan view of a main part showing a mounting state of the grain amount sensing float, Fig. 5 is a vertical sectional view of the same, Fig. 6 is a rear view of the same, Figs. 8A and 8B are cross-sectional views showing another example of the same, and FIG. 9 is a cross-sectional view showing a drive mechanism of Karamino, FIG. 10 is a side view showing the same, and FIG.
FIG. 12 is a side view of the sorting fin, FIG. 12 is a partially cutaway plan view of the same, FIG. 13 is a side view of a closing plate, FIG. 14 is a plan view of a main part of the same, FIG. 15 is a vertical sectional view of the same, FIG. 16 is a plan view showing a mounting state of the stroke sensor, FIG. 17 is an upper side view of the same, and FIG.
A, B, and C are front views, plan views, and side views of the bracket, respectively.FIG. 19 is a block diagram showing a schematic configuration of the control mechanism, and FIG.
20 is a flowchart of a main routine, FIG. 21 is a flowchart of a detection value processing control routine, FIG. 22 is a flowchart of a condition setting processing routine, FIG. 23 is a flowchart of a fin opening degree control routine, and FIG. 24. Is a graph showing the relationship between the detected value and the fin opening, FIG. 25 is a flowchart of the Karino rotation speed control routine, FIG. 26 is a flowchart of the plugging amount control routine, and FIGS. It is the front view, top view, and side view of the bracket which shows an Example. In the figure, 1 is a threshing machine, 6 is Karamin, 13 is a rocking sorter, 18 is a grain size sensing float, 18b is a float portion, 21 is a grain size detection sensor, 27 is a sorting fin, and 30 is a blocking plate , 39 is a control unit,
Reference numeral 41 denotes a work condition setting switch.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: Yoshihiro Kawamura 667 Iida-cho, Oji-machi, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture Inside Mitsubishi Agricultural Machinery Co., Ltd. 667 No. 1 Inside Mitsubishi Agricultural Machinery Co., Ltd. (56) References JP-A-55-85324 (JP, A) JP-A-60-55334 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A method for detecting an amount of an object to be sorted, which detects an amount of an object to be sorted which has dropped from a receiving net and dropped on an oscillating sorter, comprises the steps of: Floating on
The float is formed by using a float having an arcuate upper surface and a rod having the float attached to the distal end and having a base end pivotally supported so as to be vertically swingable. An object for detecting an amount of an object to be sorted in a grain sorting device, wherein a float is disposed on a lower side in a transfer direction and a rod is positioned on an upper side with respect to a transfer direction of an object to be sorted of a swinging sorter.