JPH1014377A - Shaking grading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shaking grading device capable of being simply made lightweight and improved in rigidity by vertically arranging a plurality of longitudinally extended ribs on the outside of the side surface of the shaking main body and fitting and covering the ribs with a reinforcing member from the side direction. SOLUTION: The shaking main body of the shaking grading device is made from a synthetic resin, and a plurality of longitudinally extended ribs 64, 65 are vertically arranged on the outside of the side surface of the shaking main body. The ribs 64, 65 are fit and covered with a reinforcing member 66 from the side direction. Several chaff fins 54 are combined. Holes for inserting each combination of the chaff fins into the side plate of the shaking main body and holes for supporting the combination are formed in a mutually faced state. The insertion holes and the support holes are preferably alternately arranged in the side plates in the longitudinal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for forming a main body of an oscillating sorter for sorting grains and the like disposed below a threshing apparatus by using a synthetic resin to reinforce the oscillating main body.

[0002]

2. Description of the Related Art Conventionally, an oscillating sorter in a threshing machine such as a combiner is arranged below a crimping net of a threshing device, pivotally supports a front side, and connects a rear side to a crankshaft or an eccentric shaft. Shaking is performed by driving the shaft, and sorting is performed while sending paddy and straw scraps backward, and at the same time, wind sorting is performed by sorting wind from the lower Karino, the first thing, the second thing and straw scraps And so on. Further, since the swing main body is formed by sheet metal processing and is assembled by processing an iron plate, the swing sorting apparatus is heavy, and much time is required for processing and assembly.

[0003]

If the swinging body is made of metal as in the prior art, the members for supporting the swinging sorting device need to have sufficient rigidity to withstand it and become very heavy. The combine itself was very heavy. Further, in order to manufacture the swinging main body, the steel plate is cut into a desired size and welded to assemble, so that the number of assembling steps and the number of welding steps are increased, and the cost is increased. Therefore, a swing body integrally formed of a synthetic resin has been desired.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a swing sorter disposed below a handling cylinder, wherein a swing body of the swing sorter is made of synthetic resin. Then, a plurality of ribs extending in the front-rear direction were arranged vertically on the outer side of the side surface of the swinging body, and the ribs were fitted and covered from the side by a reinforcing body. Further, in a configuration in which the chaff portion is arranged at substantially the center of the swinging body in the front and rear direction and the chaff fins can be tilted, several sets of the chaff fins are set as a set, and a pair of holes and supports are inserted into the side plate of the swinging body. The holes for insertion and the holes for support were alternately arranged in the front-rear direction.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The problem to be solved by the present invention and the means for solving it are as described above. Next, the configuration of the embodiment shown in the attached drawings will be described. 1 is an overall side view of the combine, FIG. 2 is a side sectional view of a threshing / sorting apparatus, FIG. 3 is a side view of an oscillating body molded of synthetic resin, FIG. 4 is a partial side sectional view of the oscillating body, and FIG. 6 is a partial front sectional view of the swing main body, FIG. 7 is a partial side view of the swing main body provided with a swingable screen line, and FIG. Plan view of the swinging part of
FIG. 9 is a skeleton diagram showing a power transmission configuration to a threshing and rocking sorting device, FIG. 10 is an assembled perspective view of a rocking drive portion of the rocking body, and FIG. 11 is a portion showing a rocking drive link of the rocking body. FIG. 12 is a partial cross-sectional view, FIG. 13 is a perspective view showing a fixed chaff, and FIG. 14 is a perspective view of a swinging main body.

Referring to FIG. 1, the overall structure of the combine will be described. A body frame 2 is mounted on a crawler-type traveling device 1, and a raising and reaping device A is arranged at the front end of the body frame 2 so as to be able to move up and down. The cutting and reaping device A projects the weeding board 3 at the front end to sown the culm, and raises the stalk to the rear of the stalk.
The raising of the tine raises the grain stem by the rotation of the tine protruding from the case 4, and cuts the root of the plant with the cutting blade 5 disposed at the rear of the weeding board 3, and the upper transport device, the lower transport device, It is transported to the rear by the vertical transport device 6, and the vertical transport device 6
The feedstock is passed from the upper end of the feed chain 7 to the feed chain 7 and conveys the culm into the threshing device. The provided straw cutter device 17 cuts the delivered straw and discharges it to the field. On the side of the threshing device, a Glen tank 12 for storing the sorted fine granules is provided, and in front of the Glen tank 12, an operation unit 19 is provided.

As shown in FIG. 2, the threshing device B has a handling cylinder 20 and a dust outlet processing cylinder 21 laid horizontally in the front-rear direction.
, Around which the handle blades 20a, 20a,.
A crimping net 31 is provided around the lower part of the cylinder 0 so that only paddy, small straw chips and the like leak. The dust outlet processing cylinder 21 is disposed on the Glen tank 12 side at the rear of the handling cylinder 20.
, And treats the attached particles of branch streak and the like that could not be processed by the handling cylinder 20, conveys the unprocessed material backward and discharges it to the outside of the machine.

Next, a driving configuration will be described with reference to a skeleton diagram shown in FIG. An output shaft 260 projects in the left-right direction of the engine E, and one end of the output shaft 260 is connected to the gear case 2.
59, the power is transmitted from the gear case 259 to the transmission case via pulleys and belts to drive the traveling device, and is disposed at the front of the machine body via the work clutch in the gear case 259. At the same time, the power is transmitted to the reaping device A, and at the same time, the threshing device B, the swing sorting device C, the straw processing device, and the like are driven. An output shaft protruding rearward from the gear case 259 drives a dust outlet processing cylinder 21 and a handling cylinder 20 via pulleys and belts.

A drive shaft 261 protrudes laterally from the gear case 259, and an end of the drive shaft 261 is input to a power transmission unit arranged on the left side of the body, and is pulled rearward via a pulley and a belt. Karino 35, the first conveyor 2
2 to transmit power. Further, a second pulley 274 is fitted on the conveyor shaft 273 of the first conveyor 22 separately from the pulley 269, and a belt is wound around the second pulley 274, and the second conveyor 23, the swing sorting The oscillating body 51 of the device C and the exhaust fan 30 for exhaust
Also, the power can be transmitted to a binding device disposed at the rear of the fuselage at the rear of the machine body by driving the cutter and the straw cutter device 17. In addition, a fry conveyor 13 is driven to the other side of the first conveyor 22 via a bevel gear.
Is transported to the Glen tank 12 through the fry conveyor 13. A reduction conveyor 69 is connected to the other end of the second conveyor 23 via a bevel gear.
, And the discharge port at the other end of the reduction conveyor 69 is disposed so as to face the front of the crimping net 31 of the swinging and sorting apparatus C, so that the second product is reduced and sorting is performed again. .

On the other hand, power is transmitted from an output shaft 260 projecting to the right side of the engine E to a discharge conveyor 263 via a pulley, a belt, an interlocking shaft, and a bevel gear.
As a configuration capable of driving the vertical conveyor 264 and the discharge auger 265, the paddy stored in the Glen tank 12 can be discharged.

Then, as shown in FIG.
A swing sorting device C is disposed below the swing sorting device C.
Is to sort the first thing, the second thing and straw waste etc. by the specific gravity sorting by the swing body 51 and the wind sorting by Karino 35, and the swing body 51 is made of synthetic resin to reduce the weight, Integrally molded for easy production in a short time. The front end of the swing main body 51 is disposed below the front end of the handling cylinder 20, and the rear end of the swing main body 51 extends to below the rear of the dust outlet processing cylinder 21. A swing support shaft 52 is provided at a lower front portion of the swing body 51, and a rear portion thereof is supported by a swing drive unit which will be described later, and swings by rotation of a crank shaft 53. The swing body 51 has a Glen pan 58 formed at the front, and then the lower part is lowered by one step to the bottom 59.
Is formed at the front of the bottom portion 59, and the sorting air introduction port 60 is opened.
The bulging portion 61 is provided with opening holes 67 and 68 at the front and rear.

A rack 56 is placed on the upper surface of the Glen pan 58, and the wind from the pre-fan 41 introduced from the separation wind inlet 60 passes between the rack 56 and the bottom 59, and flows onto the chaff 55. The paddy to be transported is sorted by wind. Then, a sifting wire 70 is disposed at the rear of the rack 56 so as to protrude rearward, and then a plurality of chaff fins 54 are horizontally arranged at a lower portion thereof. 57
Is arranged.

Further, since the swing body 51 formed of a synthetic resin has insufficient rigidity, as shown in FIGS.
An auxiliary member and a reinforcing portion are configured to increase rigidity. That is, the rack 56 placed on the Glen pan 58 has a saw-tooth-shaped groove portion 56a in a side sectional view.
Since the upper surface of the rack 56 has a wavy shape as a corrugated plate having a large number of を, the paddy is easily conveyed backward by swinging.
The cross-sectional shape of the Glen pan 58 is the same as that of the rack 56.
Saw-shaped grooves 58a, 58a,
Are formed and fixed by screwing so that the groove 56a of the rack 56 and the opening of the groove 58a of the grain pan 58 overlap, thereby increasing the cross-sectional area and increasing the rigidity of the front part of the swing body 51. . Further, the rear groove portion 58a is slightly swelled downward and covers the upper portion of the pre-fan 42 so as to function as a fan guide. Further, mounting stays 62 are fixedly mounted inside the side surface of the swinging body 51 at a position above the sorting wind introduction port 60, and the rear part of the rack 56 is mounted and fixed, and at the same time, a sieving wire 70 described later is used. Of the swinging body 51 supporting the pivot shaft
The sides are reinforced.

The swinging body 51 has a bottom portion 59 extending rearward from the lower surface of the separation wind introduction port 60, and a rack 63 is mounted and fixed on the bottom portion 59.
6, the rear part is fixed by mounting stays 62 in the same manner as the rack 56, and the rack 6
The rear end of 3 extends to the front upper part of the chaff 55 to transport the paddy. Further, ribs protrude from the bottom surface of the bottom portion 59, and the left and right side plate portions are bulged downward to form a box shape. And the rigidity between the side plates is increased, and the swinging support shaft 52 is located below the bottom 59 so as not to interfere with the sorting operation. Further, ribs 64 and 65 elongated in the front-rear direction are formed on the outer side surface of the swinging body 51 so as to protrude outward in a vertical and parallel manner to increase the rigidity of the side plate of the swinging body 51. As shown in FIG. 6, from the side of the upper and lower ribs 64 and 65, a reinforcing member 66 having a hat shape (convex shape) in cross section is fitted and fixed with bolts or the like. The reinforcing body 66 is a plate that is long in the front-rear direction,
The upper part of the plate body is bent into a U-shape in a front sectional view shown in FIG. 6 to form a covered portion 66a, and upper and lower ribs 64 and 65 are formed.
Are fitted from the side and fixed with bolts or the like to reinforce the side surface of the swing body 51. Further, the covering portion 6 of the reinforcing body 66
A pivot 66b extends below 6a to cover the side of the body. As shown in FIGS. 6 and 14, the upper side surfaces 51 a of the left and right side plates of the swinging body 51 have a cross-sectional view of “he”.
The seal rubber 115 configured in the shape of a letter is fixed with bolts or pins or the like, and when performing the sorting operation by setting the swing sorting device on the machine body, grains and the like are removed from the gap between the side plate of the swing body 51 and the machine body. It does not leak downward.

The chaff section 55 includes a movable chaff 80.
The movable chaff 80 is disposed at a central portion of the swinging body 51 at the rear of the rack 63, and the fixed chuff 85 is disposed at the rear portion. The movable chaff 80 is a chaff fin 54 composed of a band-shaped plate.
... are arranged horizontally in the left-right direction and parallel to the front and rear. Two pins are vertically protruded outward from both ends of the chaff fin 54, the upper pin is pivotally supported by the side plate, and the lower pin is slidably movable in the long hole of the side plate. That is,
In order to support the chaff fins 54, 54, 54, a pin hole 81 for pivotally supporting the upper pin and a lower pin are slidable about the pin hole 81 on the side surface of the swinging body 51. A pair of long holes 82 are arranged in the front-rear direction to form a pair, and a pair of side plates on the opposite side in the left-right direction and a side plate behind the pair are formed with a substantially rhombus-shaped insertion hole 83. And
A pair of pin holes 81 and a long hole 82 are provided at the rear of the insertion hole 83.
Has been arranged. That is, a set of pin holes 81
, And the insertion holes 83 are arranged to face each other, and the subsequent pin holes 81, 81,.
.. And the insertion holes 83 are alternately and continuously arranged rearward. The insertion hole 83 has a substantially rhombic shape when viewed from the side and is large enough to receive a pair of the pin hole 81 and the long hole 82.

Therefore, when assembling the chaff fins 54, one set of fins 54, 54.
Is inserted through the insertion hole 83, and the inserted pin at the tip is inserted into the pin hole 81 and the elongated hole 82 on the other side. In order to support the chaff fin 54 on the side of the insertion hole 83, a pivot 66 is provided below the reinforcing member 66 which is fitted to the ribs 64 and 65.
b is provided in the pivot 66b.
A hole aligned with the axis of 81 ... is opened, and the upper pin is pivotally supported after the chaff fin 54 is inserted. Further, the chaff fin 5 inserted in the long hole 82 is used.
4 Lower pin and chaff fin 5 fitted in insertion hole 83
(4) The lower pin is pivotally supported by a connecting plate which is long in the front-rear direction, and the connecting plate is connected to an adjusting lever or an actuator. Is changed so that the amount of fall can be adjusted.

As shown in FIG. 13, the fixed chaff 85 includes left and right side plates 86, 86 and side plates 86.8.
6 fixed fins 87, 87 ...
.. Are composed of partition plates 87a, 87a provided in the middle of the fixing fins 87, and a rear plate 86a. These are integrally formed of synthetic resin to simplify assembly and reduce weight. Further, the fixed chaff 85 is attached to the swinging body 5.
1 is fitted to the rear part according to the arrangement height of the chaff fins 54, and is fixed to the side part and the rear surface with bolts or the like to increase the rigidity of the rear part of the swing body 51.

Further, the front upper part of the movable chaff 80 (the handling cylinder 20)
A connecting body 88 is provided horizontally below the rear part of the body. The connecting body 8
Reference numeral 8 denotes a connecting rod 89 and side support plates 90 for supporting the right and left of the connecting rod 89. The side supporting plates 90 are formed in a triangular shape, and the lower fixing position is set to the rib 64.
The side support plates 90 are fixed to both side surfaces of the swing main body 51 by being positioned between the side plates 65. A connecting rod 89 is horizontally provided between the upper portions of the left and right side support plates 90 to connect and fix the left and right side plates at the center of the swinging body 51 in the front-rear direction to increase rigidity. The position where the connecting body 88 is provided horizontally is disposed so as to be located at the rear part of the handling cylinder 20, and is a position where the amount of kernel leakage is small and does not disturb the sorting operation. Further, a chaff sensor 99 is provided in the middle of the connecting rod 89 so as to detect the amount of paddy, straw waste, and the like conveyed on the movable chuff 80, and the chaff fins 54, 54,. .. Can be configured to change the angle. In other words, if the flowing amount is large, the angle is sharpened and the falling amount is increased, and if the flowing amount is small, the angle is reduced and the grains fall and the straw chips etc. are blown off by the wind,
It can be configured to improve the sorting efficiency.

Further, the side plate below the chaff portion 55 of the swinging body 51 serves as a bulging portion 61, and the left and right bulging portions 61
An opening 67 is opened between the openings, and long holes 91 91 are formed in the lower part of the side plate in the front-rear direction. The sheave 57 is inserted through the long holes 91 91 to cover the opening 67, and 9
It is fixed at 2.92. Also, the above-mentioned Glen Sieve 57
A drop port 68 is also opened at the rear part, and two rubber droops 94 and 95 are fastened and fixed together by a fixing plate 93 to a cross section between the drop port 68 and the drop port 67. The droop 94 extends on the falling board 28 of the first conveyor 22, and the other rubber drop 95 extends on the falling board 29 of the second conveyor 22. I'm making it. Further, the swinging body 5 located at the rear of the drop port 68
A rubber droop 96 is fastened and fixed to the bottom of 1 and extended onto the backflow board 29 on the rear side of the second conveyor, and falls onto the conveyor without spilling the paddy or the second as described above. Like that.

Then, as shown in FIG.
The bottom plate 10 of the swing body 51 below the fixed chaff 85 at the rear
Numeral 6 is inclined and ribs 107 are projected below the lower surface of the bottom plate 106 to increase rigidity.
The swing drive link 100 is fixed to 06. As shown in FIGS. 5, 11, 12, and 13, the swing drive link 100 includes a fixed plate 101, a fixed link 102, a driven link 103, a swing link 104, and a crankshaft 105. I have. The fixed plate 101 is a plate mounted on the upper surface of the bottom plate 106 of the swinging body 51, and a screwing portion for bending an end of the fixed plate 101 upward and screwing it on a side surface of the swinging body 51. A fixed link 102 and a fixing bolt 111 are formed on the bottom of the fixed plate 101.
The ribs 107
101b, 101b, 101 for filling gaps between
b, the fixed plate 101 and the fixed link 10
By fixing the bottom plate 106 between the two, a three-dimensional box-like configuration is provided to increase rigidity. On the lower surface of the fixed link 102, a semicircular portion 102b having a semicircular shape in a side view is formed. Further, the driven link 103 forms a semicircular portion 103a having a substantially semicircular shape in a side view, a fitting portion 103b protruding forward and downward at one end of the semicircular portion 103a, and a shaft hole is formed in the fitting portion 103b. 103c is open. Further, a swing link 104 is provided inside the driven link 103, and the swing link 104
Is divided into upper and lower parts, opening front and rear support holes 104a and 104b in the front and rear directions.
A reinforcement plate is disposed on the side of the reference numeral 06, and the side of the fixed plate 101 and the side of the fixed link 102 are screwed together to reinforce the rear part of the swing main body 51 which has been vibrated by the swing. Is going.

With such a configuration, the driven link 103
Semi-circular portion 103a and semi-circular portion 102b of fixed link 102
The crankshaft 53 is inserted into the circular portion, and the swing shaft 108 is inserted into the fitting portion 103b of the driven link 103.
Are fitted. Then, the crank portion 53a of the crankshaft 53 is pivotally supported on the rear support hole 104b of the swing link 104, the swing shaft 108 is pivotally supported on the front support hole 104a, and the roller 109 is mounted on the end of the swing shaft 108. 12 and is fitted to a guide body 110 fixed to the main body (body) shown in FIG. 12, and when the crank shaft 53 is swung, the swing link 10
4, the roller 109 of the swing shaft 108 reciprocates along the guide body 110, thereby reciprocating the driven link 103 to which the swing shaft 108 is fitted. The rear part of the moving body 51 is reciprocated in a direction along the guide body 110 so that the swinging body 51 makes a swinging movement.

A sieving line 70 for guiding paddy and the like, which is disposed in the vicinity of the back of the grain pan 58 of the swinging body 51, will be described. As shown in FIGS. 2, 7, and 8, the screen guide portion 71 pivotally supports the pivot shaft 72 on the side plate at a position behind the Glen pan 58 of the swinging body 51, and the pivot shaft 72 between the side plates. Are fixed on the upper surface. Are formed in a rod shape extending in the front-rear direction, fixed on the outer peripheral surface of the pivot shaft 72 at regular intervals in the left-right direction, and the rear ends of the respective wire lines 70, 70,. The portion extends to a position near the front of the chaff portion 55.

Further, the screen guide 71 is configured to swing. That is, as shown in FIGS. 7 and 8, an arm 74 is fixed to one end of the pivot shaft 72 pivotally supported at a position behind the Glen pan 58 of the swing body 51, and the front end of the arm 74 is The arm 74 extends to a position near the separation wind introduction port 60, and the swinging shaft 7 extends laterally from the front side surface of the arm 74.
5 are projected. On the other hand, an arc-shaped long hole 79 is formed on the side surface of the swing main body 51 at a position near the sorting wind introduction port 60.
The swing shaft 75 penetrates through the elongated hole 79, and a guide roller 76 is fitted to the end of the swing shaft 75. The guide roller 76 is fitted between two parallel plate guides 77 fixed to a side plate of the main body (body) that covers the side of the swing main body 51. I have. Further, a pivot shaft 7 for pivotally supporting the front part of the swing body 51.
The left and right end portions of the main body 2 are fitted to a guide body fixed to the side plate on the main body side. When the swing main body 51 swings, the guide roller 76 is guided by the guide bodies 77 and 77 to move back and forth, When the positions of the pivot shaft 72 and the guide roller 76 change, the arm 74 is rotated, and the screen guide 71 is also simultaneously rotated, so that the screen guide 71 is synchronized with the swing of the swing body 51. The swaying and sifting of the rice straw and the like that have fallen on the chaff portion 55 is performed while sifting. However, it is also possible to fix the pivot shaft 72 without the arm 74. In this case, the swinging of the swinging body 51 causes the screen wires 70, 70 to be fixed.
... also swings at the same time.

As shown in FIG. 8, a straw rack 78 may be arranged in parallel with the plurality of screen wires 70, 70,... Fixed on the pivot shaft 72. The straw rack 78 has a plate-like body that is long in the front-rear direction.
2 and the upper surface of the plate-like body is formed in a sawtooth shape to form a straw rack 78, and the rice straw to be fed onto the chaff 55 is guided backward by the sawtooth-shaped straw rack 78.

The karano 35, which performs the wind sorting of the swing sorting device C, is disposed below the front part of the swing body 51 (below the position between the sorting wind inlet 60 and the start end of the grain sieve 57). A first conveyor 22 for transporting fine granules and a second conveyor 23 for transporting a second product are arranged in the rear of the Karino 35 in order. In addition, a pre-fan 41 that blows air to the sorting wind inlet 60 of the swinging body 51 is provided in front of the Karino 35.

As described above, the first product after being sorted by the rocking sorting device C falls on the flow tray 28 of the first conveyor 22 and is directed to the side of the threshing device B via the fry conveyor 13. The second product is stored in the arranged Glen tank 12, and the second product falls on the falling plate 29 of the second conveyor 23, and the crimping net 31 is disposed above the rocking sorting device C by the second reduction conveyor (not shown). The dust is returned to the front portion and sorted again, and the dust and the like are sucked by the exhaust fan 30 and discharged from the rear.

[0027]

As described above, the present invention has the following effects. That is, since the ribs are provided in the front-rear direction on the outer sides of the left and right side surfaces of the rocking body, the side plate of the rocking body is reinforced, and rigidity for supporting the rocking body that is long in the front-rear direction is obtained. The rigidity of the side surface of the oscillating body can be further increased by fitting the reinforcing member from the side, and twisting and the like can be prevented. Therefore, the oscillating main body can be made of a synthetic resin, the manufacturing can be performed easily, the weight can be reduced, and the cost can be reduced.

Also, several chaff fins are set as a set,
The holes to be inserted into the side plate of the rocking body and the holes to be supported are arranged facing each other, and the holes to be inserted and the holes to be supported are alternately arranged in the front-rear direction. The holes can insert chaff fins, but they do not become large, do not reduce rigidity, can reduce the weight of only the opening, and can be assembled one by one. Can be assembled book by book.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a side sectional view of a threshing / sorting device.

FIG. 3 is a side view of a swing main body formed of resin.

FIG. 4 is a partial side sectional view of the swing body.

FIG. 5 is a partial side sectional view of the swing body.

FIG. 6 is a partial front sectional view of the swing main body.

FIG. 7 is a partial side view of a swing main body provided with a swingable screen wire.

FIG. 8 is a plan view of a swing drive unit of the sieve line.

FIG. 9 is a skeleton diagram showing a configuration for transmitting power to a threshing and swing sorting device.

FIG. 10 is an assembled perspective view of a swing mechanism of the swing main body.

FIG. 11 is a partial perspective view showing a swing drive link of the swing body.

FIG. 12 is a sectional view showing a swing drive link of the swing body.

FIG. 13 is a perspective view showing a fixed chaff.

FIG. 14 is a perspective view of a swing main body.

[Explanation of symbols]

 C swing sorting device 20 handle cylinder 51 swing body 54 chaff fin 55 chaff 57 Glen sheave 58 Glen pan 64 rib 65 rib 66 reinforcement

Claims (2)

[Claims] 1. A swing sorting device provided below a handling cylinder, wherein a swing main body of the swing sorter is made of synthetic resin, and a rib extending in the front-rear direction is provided outside a side surface of the swing body. A plurality of ribs, and the ribs are fitted and covered by reinforcing members from the side. 2. A structure in which a chaff portion is arranged substantially at the front and rear centers of a swinging main body of a swing sorting device provided below a handling cylinder so that the chaff fins can be tilted. A swing sorting device, wherein a hole to be inserted into a side plate of the swing body and a supporting hole are arranged to face each other, and the inserted hole and the supporting hole are alternately arranged in the front-rear direction. .