JP2531209Y2 - Structure of the object to be sorted in the grain sorter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for detecting an amount of an object to be sorted in a grain sorting apparatus provided in a combine, a harvester or the like.

[0002]

2. Description of the Related Art
In this seed grain sorting device, it is necessary to adjust sorting conditions such as the rotation speed of Karamin, the amount of blockage of the swinging sorter, the opening of the fin, etc., according to the amount of the material to be sorted. Since the adjustment is manually performed by the operator, the operator is not allowed to be troublesome and troublesome. 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.

[0003] However, when the above-mentioned detection body is simply constituted by a float-like thing floating on the surface of the sorting object which has been threshed and dropped on the swing sorting body, the float is affected by the swing of the swing sorting body. There is a possibility that the detection object may gradually sink into the object to be sorted due to its own weight or the like, causing a detection error.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to provide a structure for detecting an amount of an object to be sorted in a grain sorting apparatus capable of eliminating these drawbacks in view of the above-mentioned circumstances. Then, a float sorter for detecting the amount of the material to be dropped that has fallen on the rocking sorter is provided to a grain sorting device that sorts the dumped material that has been threshed in the handling room with a rocking sorter. In order to provide the sorted object amount detector, the float-shaped detector has a substantially circular shape whose side portion is rotatably supported so as to be rotatable in the front-rear direction along the sorting and transferring direction of the sorted object. It is characterized by being formed.

[0007] The present invention is Yotsute this configuration, in which to be able to top toward the detection accuracy of the sorting amount detecting member.

[0006]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes an upper-handling threshing machine, which comprises a feed chain 2, a pinching rail 3,
Handling cylinder 4, Receiving net 5, Karino 6, Processing cylinder 7, Dust fan 8, First funnel 9, Second funnel 10, Frying cylinder 11, Second reduction cylinder 1
2. It is the same as the conventional one that it is configured by using various member devices such as the swing sorter 13 and the like.

[0007] In the embodiment, the swing sorting body 13
Are the discarded materials dropped from the receiving network 5 and the second return cylinder 12
The upper and lower two-stage swing sorting units 14 and 1 are provided for swing sorting (sliding sorting) of objects to be sorted such as second objects discharged from the discharge ports of the nozzles.
5 and a swing rack at the transfer end side of the sorting object. On the lower surface of the receiving net 5, a partition plate 16 made of a rubbery elastic body is hung so as to partition right and left the moving end side of the sorting object of the upper swinging sorting section 14, and the partition plate 16 The right part (area deviated toward the feed chain 2 side) is divided by the discharged material from the discharge port 12a of the second reduction cylinder 12 disposed on the left side of the sorting chamber, and the paddy pad 17 disposed on the left side. Thus, it is an area that is not affected as much as possible by the discarded articles forced to the right side and the discarded articles dropped from the receiving net 5 in large quantities. Further, a grain amount detector 18 described later is provided here.

That is, the grain amount detecting body 18 is constituted by using a float portion 18b and a detecting rod 18a, and the detecting rod 18a is moved in the front-rear direction, that is, in the sorting / transporting direction of the objects to be sorted. , And the base end (front end) passes through the support shaft 20 facing left and right,
The fixing shaft 20 is fixed by a fixing bolt 20a so as to be adjustable in the front-rear direction. The support shaft 20 is rotatably supported on a substantially U-shaped bracket 1c provided on the machine frame 1a side.
As a result, the detection rod 18a swings up and down in a state where the left and right swinging is stopped. Further, a grain amount detection sensor 21 is attached to the front plate of the bracket 1c, and this sensor rod 21a
Interferes with the base end of the detection rod 18a penetrating the support shaft 20, and detects a vertical swing change of the detection rod 18a based on a change in the amount of the material to be sorted. Further, the bracket 1c is provided with a stopper guide 22 having a long groove 22a in which the detection rod 18a is loosely fitted so as to be vertically movable.
2a is set so that it swings up and down with the range until it contacts the upper and lower edges, but the lower limit position is slightly smaller than when the swing sorter 13 reaches the swing upper end position. Float 18b
Is designed so as not to interfere with the swing sorting body 13.

Further, a screw groove 18g is formed in the base end of the detection rod 18a, and the screw groove 18g has a play fitting position of the stopper guide long groove 22a slightly distal to the base end where the sensor rod 21a interferes. A pair of balancers 23 are screwed in surface contact with each other so as to move and lock with each other while being positioned between the support shaft 20 and the mounting position. The weight and the set position of the balancer 23 are such that, for the detection rod 18a that swings up and down with the support shaft 20 as a fulcrum, the rear side where the float 18b is mounted is slightly heavier than the front side where the balancer 23 is mounted. Is set to

The float portion 18b is formed of a hollow body having a cylindrical shape with a bottom, and the left and right bottom surfaces 18c are formed at the tip of a detection rod 18a with a substantially C-shaped support shaft portion. 18d so as to be freely rotatable, whereby the float portion 18a is moved to the swing sorting body 13
The surface of the object to be sorted is rolled while being subjected to the swinging and sorting operation.

The following consideration is given to the swing sorting body 13. That is, the upper swing sorting section 14 has a sorting starting end 14a formed by a non-perforated corrugated sheet and a sorting end fin formed by a sorting fin 27 at the sorting start end side, which is separated left and right by the partition plate 16. It is constituted by a side sorting section 14b. Upper and lower pins 27a and 27b are provided on the rear surface of the sorting fin 27 so as to protrude from both right and left ends. The upper pin 27a and the lower pin 27b are connected to the upper and lower support plates 27c and 27c, respectively.
It is rotatably mounted on the shaft 27d. Upper plate 27
c is integrally fixed to a bracket 13b fixed to the side plate 13a of the swinging sorter 13, and the lower plate 2
7d is supported by the bracket 13b so as to be slidable in the front-rear direction. An arc-shaped guide hole 1 is formed in the bracket 13b.
The guide hole 13c is provided with a lower pin 27b which is partially selected from the sorting fins 27 (in the embodiment, the one at the beginning and end in the sorting direction).
Is loosely fitted. Further, the upper pin 27 at the most sorting start end side
A base end of a swinging plate 27e is integrally fixed to one end of a, and an operating pin 27f is integrally fixed to a distal end of the swinging plate 27e. The operation pin 27f is formed in an arc-shaped guide hole 1 formed in the side plate 13a.
3d, and further protrudes out of the machine through a window 1e opened in the body side plate 1d, and this protruding end is connected to an inner wire 27g. The upper pin 27a is forcibly rotated by the push-pull operation of the inner wire 27g based on the drive of a drive motor 37, which will be described later, whereby the selection fin 27 swings around the upper pin 27a as a fulcrum, and The opening and closing of the gap between the sorting fins 27 can be adjusted. In addition, 27h receives the outer,
Numeral 27i denotes a return ammunition.

On the other hand, reference numeral 33 denotes a bracket integrally mounted on the fryer 11 and a swinging plate 35 is supported on the bracket 33 via a support shaft 35a so as to be swingable. An inner wire 27g for adjusting the opening of the sorting fin 27 is connected to the swinging plate 35 in an interlocking manner. Further, a gear 35 is provided on the periphery of the swing plate 35.
b is engraved, but the gear 35b is
, The push-pull operation of the inner wire 27g is performed based on the drive control of the drive motor 37, which will be described later, and the opening degree of the selection 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, so that the amount of swing of the plate 35 can be detected. An opening amount detection sensor of the selection fin 27 is configured. Further, limit switches 35d and 35e are provided at the rocking limit positions of the rocking plate 35, respectively, so as to detect that the rocking plate 35 has reached the rocking limit position.

Next, the procedure of drive control of the drive motor 37 will be described with reference to a block circuit diagram and a flowchart. Reference numeral 39 denotes a control unit configured by using a microcomputer unit.
The grain amount detection sensor 21 and the fin opening degree detection sensor 3
8, various switches such as an automatic-manual switch, limit switches 35d and 35e, and setting devices are connected. And the control unit 3
Reference numeral 9 denotes a configuration for outputting a control command necessary for actuators such as the drive motor 37 based on the signals input from them, 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 the processing based on the detection value from the grain amount detection sensor 21 and the detection value from the fine opening degree detection sensor 38. Various routines such as a fin opening amount control routine for controlling the opening amount of the selection fin 27 are programmed as subroutines.

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 that case, the dead zone ΔH
Is provided. That is, it is determined whether the fin opening amount detection value K is larger or smaller than the kernel amount detection value H in consideration of the dead zone ΔH. If it is determined that the fin opening amount detection value K is large (K> H + ΔH), a drive command is issued to the drive motor 37 in the direction of decreasing the fin opening amount (that is, sending out the inner wire 27g). On the contrary, when it is determined that the fin opening amount detection value K is small (K <H−ΔH),
A drive command is output to the drive motor 37 in the direction of increasing the fin opening (that is, pulling the inner wire 27g), and the two detection values H and K match (H−Δ).
When it is determined that (H ≦ K ≦ H + ΔH), a motor drive stop command is output, and the control for adjusting the fin opening amount is performed based on the feedback control in this manner.

In the same manner, the control of the closing amount of the closing plate 30 and the control of the number of rotations of the carving 6 are performed, but the details are omitted.

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 determined by the detection of the grain amount detecting sensor 21. The grain amount detection sensor 21 is automatically adjusted based on the value. However, the kernel amount detection sensor 21 is detected based on the swing amount detection of the detection body 18 provided with a float 18b floating on the surface of the object to be sorted. The amount of the sorted material will be detected. That is, the sorting object is transferred while being subjected to the swing sorting operation of the swing sorter 13.
In the case of 8b, since the surface of the sorting object rolls very smoothly while rotating, the grain amount can be accurately detected without obstructing or sinking the flow of the sorting object. Therefore, the selection conditions such as the opening amount of the selection fin 27, the rotation speed of the Karamin 6 and the closing amount of the blocking plate 30 can be automatically adjusted based on the high-precision detection value with a small detection error. Accuracy and sorting efficiency can be significantly improved.

The present invention is, of course, not limited to the above-described embodiment, and in essence, it is sufficient if the float portion is configured to be freely rotatable, as shown in FIG. As in the second embodiment, a cylindrical float 1
The outer peripheral surface 18e of the outer peripheral surface 8b may be formed in a wavy shape, and this has the advantage that the float 18b can be more reliably rotated. Further, as in the third embodiment shown in FIG. 17, the tip of the support shaft 18d is formed to have an acute angle, and the support portions 18f are formed at both bottom portions 18c of the float portion 18b so as to be formed with acute angles. The shaft part 18d is attached to the part 18f.
If the tip is locked so that the shaft can be supported in a point contact state, the float 18b can rotate more smoothly, and fine foreign substances can enter from the bearing of the support shaft 18d and the float 18b can be rotated. It is convenient because it is possible to reliably avoid problems such as heavy weight and poor rotation.

[0019]

[Effects] In summary, since the present invention is constructed as described above, the amount of the material to be sorted is detected in order to automatically adjust the sorting conditions of necessary sorting means such as Karamin, sorting fins, blocking plates, etc. However, when the float part rotates along the transport direction of the sorting object, the float part rotates on the surface of the sorting object moving on the swinging sorting body. it to a connexion rolling the circle smooth and such that, without small that would Dari sinking or impede the flow of the sorted matter, it may be the accurate grain weight detection. As a result, winnowing fan based on small have detection known value of the detection error, sorting fins, the necessary sorting means eye closing plate or the like can be adjusted automatically, that measure the upper direction of the sorting accuracy and sorting efficiency it can.

[Brief description of the drawings]

FIG. 1 is an internal side view of a threshing machine.

FIG. 2 is an internal plan view of the same.

FIG. 3 is a front view of the same.

FIG. 4 is a plan view of a main part showing an attached state of a grain amount detection float.

FIG. 5 is a longitudinal sectional view of the same.

FIG. 6 is a rear view of the same.

FIG. 7A is a sectional view of a float portion, and FIG. 7B is a front side view of the same.

FIG. 8 is a side view of a main part of the sorting fin.

FIG. 9 is a partially cutaway plan view of the same.

FIG. 10 is a front view of the bracket.

FIG. 11 is a plan view of the same.

FIG. 12 is a block diagram showing a schematic configuration of a control mechanism.

FIG. 13 is a flowchart of a main routine.

FIG. 14 is a flowchart of a fin opening degree control routine.

FIG. 15 is a graph showing the relationship between the detected value and the fin opening.

FIG. 16A is a sectional view of a float portion showing a second embodiment, and FIG. 16B is a front side view of the same.

FIG. 17A is a sectional view of a float portion showing a third embodiment, and FIG. 17B is a front side view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Threshing machine 13 Oscillating sorter 18 Grain quantity detector 18b Float 18d Support shaft

Claims (1)

(57) [Scope of request for utility model registration] The present invention relates to a grain sorting apparatus for sorting, by a rocking sorter, a discarded material that has been threshed in a handling room. In order to provide the object-to-be-sorted detector, the float-shaped detector has a substantially circular shape whose side portion is rotatably supported so as to be rotatable in the front-rear direction along the sorting-and-transferring direction of the object to be sorted. A structure for detecting an amount of an object to be sorted in a grain sorting device, characterized by being formed with: