JP2014212747A - Threshing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such a problem that the drop/recovery efficiency of free grains stuck in grain culms is low.SOLUTION: A threshing device is configured by: forming a dust removal communication section H coming into communication with a dust removing device 30 provided at the rear side of a threshing chamber 12; forming a fourth processing chamber S for recovering grains stuck in discharged culms after threshing at the rear side of the dust removal communication section H; providing a body side partition plate 64 provided at the side plate 63 of the threshing device 3 and an upper side partition plate 61 provided at the threshing cylinder top cover 60 between the dust removal communication section H and the fourth processing chamber S; disposing the body side partition plate 64 and the upper side partition plate 61 so as to be partially overlapped in a front view; and disposing the body side partition plate 64 positioned at the upstream side in the rotating direction of the threshing cylinder 11 on the front side more than the upper side partition plate 61 positioned at the downstream side in the rotating direction of the threshing cylinder among the body side partition plate 64 and the upper side partition plate 61.

Description

  The present invention relates to a threshing apparatus.

  Conventionally, a handling chamber is formed on the lower side of a handling cylinder for threshing cereals conveyed by the corn supply / conveying device to form a handling chamber, and the rear part of the handling chamber opposite to the installation side of the cereal supply / conveying device Provided on the side is a dust treatment device having a dust treatment cylinder that communicates with the handling chamber through a dust vent, and the front part of the end of the handling chamber where no handling net is present is the dust vent. A threshing device is known which is formed in the dust draining communication portion formed with the rear end portion of the end portion of the handling chamber where the handling net does not exist in the stabbed grain collecting portion (Patent Document 1). .

JP 2008-237194 A

In the known example, a stab particle recovery unit is provided for dropping and recovering stabbed grains that have been stabbed in the cereal cocoon. As such, there is a problem of dropping on the sheave and increasing the sorting load.
Although the present application has a configuration in which a stabbed grain collection unit is provided, the sorting load is reduced, and the sorting accuracy and sorting efficiency are improved.

According to the first aspect of the present invention, a swing sorting shelf 22 for sorting the grains in the workpiece is provided below the handling chamber 12 on which the handling cylinder 11 is mounted. In the threshing apparatus provided with the tang 19, a dust exhaust communication portion H communicating with the dust exhaust processing device 30 provided on the rear side of the handle chamber 12 is formed in the rear portion of the handle chamber 12, and the dust exhaust communication portion. Formed on the rear side of H is a fourth processing chamber S that collects the grains stuck in the waste after threshing, and is disposed between the dust removal communicating portion H and the fourth processing chamber S on the side plate 63 of the threshing device 3. A threshing device provided with a provided main body side partition plate 64 and an upper partition plate 61 provided on the handling cylinder upper cover 60, and arranged so that a part of the main body side partition plate 64 and the upper partition plate 61 overlap in front view. The threshed threshing was dropped from the handling chamber 12 onto the swing sorting shelf 22 and sorted and threshed in the handling chamber 12. Part of the cereal that does not fall from the handling net 18 out of the grain enters the dust exhausting communication section H from the discharge port 35 at the end of the handling chamber 12 and is taken into the dust processing apparatus 30. The cereals that do not enter enter the fourth processing chamber S.
The cereals that have entered the dust exhaust communication portion H are subjected to resistance of movement by the main body side partition plate 64 and the upper partition plate 61, and are smoothly transferred to the dust disposal apparatus 30.
According to the second aspect of the present invention, of the main body side partition plate 64 and the upper partition plate 61, the main body side partition plate 64 positioned on the upper side in the rotational direction of the handle cylinder 11 is positioned on the lower side in the rotational direction of the handle cylinder. The threshing device is arranged on the front side of the upper partition plate 61, and the threshing that is transferred backward while circling in the rotation direction of the handling cylinder 11 in the handling chamber 12 is the main body side partition plate 64 and the upper partition plate. The entry into the fourth processing chamber S from the gap 61 is prevented.
The invention according to claim 3 is a threshing device in which a cutting blade 68 is provided on the front side of the main body side partition plate 64, and the threshing that has entered the dust discharge communicating portion H is moved by the upper partition plate 61. The cutting blade 68 acts in the state which received resistance, and a sawdust is cut | disconnected.
The invention according to claim 4 is a threshing device provided with cutting blades 68 on the front side of the main body side partition plate 64 and the rear side of the upper partition plate 61, respectively, on both the front and rear sides of the upper partition plate 61, The cutting blade 68 cuts the sawdust.
The invention according to claim 5 is a threshing device in which a guide 72 is provided in the dust exhaust communication portion H to provide resistance to backward transfer of the dust exhaust, and the dust exhaust in the dust exhaust communication portion H. Is processed while receiving transfer resistance by the guide 72.

In the first aspect of the present invention, the cereal that has entered the dust exhaust communication portion H receives the resistance of the main body side partition plate 64 and the upper partition plate 61, so that the transition to the dust disposal apparatus 30 can be made smooth. In addition, it is possible to prevent the sawdust from being transferred into the fourth processing chamber S.
In the invention described in claim 2, in addition to the effect of the invention described in the above-mentioned claim, it is possible to prevent the sawdust from entering the fourth processing chamber S from the gap between the main body side partition plate 64 and the upper partition plate 61. Further, it is possible to make the transition from the dust removal communication part H of the grain removal to the dust treatment apparatus 30 smooth.
In the invention described in claim 3, in addition to the effect of the invention described in the above-mentioned claim, since the cutting blade 68 cuts the sawdust, the occurrence of clogging of the dust communication part H can be suppressed.
In the invention described in claim 4, in addition to the effects of the invention described in the above-mentioned claim, since the cutting blade 68 cuts the sawdust, the occurrence of clogging of the dust exhaust communication part H and the increase in the processing load of the dust processing apparatus 30 are further increased. Can be suppressed.
In the invention according to claim 5, in addition to the effect of the invention according to the above-mentioned claim, the transfer resistance is given to the cereal in the dust exhausting communication part H by the guide 72, so the dust exhausting treatment device from the dust exhausting communication part H The transition to 30 can be further facilitated, and the intrusion of sawdust into the fourth processing chamber S can be suppressed.

The side view of a combine. The longitudinal side view of a threshing apparatus. The cross-sectional plan view. The same part front view. The front view of the Example which provided the cutting blade. Plan view The same side view. The side view of the other Example which provided the same cutting blade. The side view of the other Example which provided the same cutting blade. The partially omitted bottom view of the embodiment provided with the guide. A partially omitted bottom view of an embodiment provided with a guide and a cutting blade. The same side view. The top view of a waste transport apparatus. The rear view.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings of a combine. Reference numeral 1 denotes a fuselage frame of the combine, 2 a traveling device provided below the fuselage frame 1, 3 a threshing device provided above the fuselage frame 1, and 4 a threshing A mowing unit provided on the front side of the device 3, 5 is a Glen tank provided on the side of the threshing device 3, and 6 is a control unit provided on the front side of the Glen tank 5.
The threshing device 3 is provided with a handling chamber 12 in which a handling cylinder 11 having a handling tooth 10 on an upper portion thereof is mounted substantially horizontally. On one side of the handling chamber 12, a supply and transport chain 14 of a cereal supply and transfer device 13 that supplies and transports the cereal that has been cut by the mowing unit 4 is provided. For ease of understanding, the following explanation will be given by showing directions such as front and rear, right and left for convenience, but the configuration is not limited thereby.
The handling cylinder 11 is mounted on the front plate 16 and the handling chamber rear plate 17 of the threshing device 3, and the lower side of the handling cylinder 11 is surrounded by a handling net 18. A tang casing 20 of tang 19 is provided below the handling net 18. A wind selection chamber 21 capable of wind-selecting grains and foreign matters by blowing air from the Karatsu 19 is formed below the handling chamber 12, and in the wind selection chamber 21 in the air blowing direction (front-rear direction) of the Karatsu 19. A swing sorting device 23 constituted by a swing sorting shelf 22 that swings back and forth is provided.

The configuration of the swing sorting device 23 is arbitrary, but as an example, the starting end portion (front end portion) of the swing sorting shelf 22 is positioned above the hot casing 20 and formed in the transfer shelf 24. Although not shown in the drawing, the upper surface of the transfer shelf 24 is provided with protrusions and irregularities so that falling objects from the handling net 18 are transferred to the lower side of the swing sorting shelf 22 in the transfer direction.
A sheave 25 is provided on the lower side of the transfer shelf 24 in the transfer direction. The sheave 25 is composed of a front-side glensieve 25A and a rear-side chaff sheave 25B.
The sheave 25 is for selecting grains and foreign substances, and a plurality of sheaves 25 are arranged in parallel in the swinging direction at a predetermined interval. The sheave 25 is formed in a thin flat plate shape, and is configured so that the inclination angle can be adjusted within an angular range where the lower side (rear side) in the transfer direction is high.
A Strollac 26 is provided on the lower side (rear side) of the chaff sheave 25B in the transfer direction. A first conveyor 27 is provided below the swing sorting shelf 22, and a second conveyor 28 is provided behind the first conveyor 27. Reference numeral 29 denotes a sorting net provided below the sheave 25.

A dust removal processing device 30 is provided on the rear (termination side) side of the handling cylinder 11 opposite to the installation side of the cereal supply and transfer device 13. The dust removal processing device 30 is provided with a dust removal treatment cylinder 31 that is substantially parallel to the axis of the treatment cylinder 11, and communicates with the treatment chamber 12 through a dust removal communication port 33 (FIG. 2) provided at the rear part of the treatment chamber 12. Let me configure. A start end portion of the dust removal processing cylinder 31 is mounted on the intermediate plate 34, and a discharge port 35 is provided between the intermediate plate 34 and the rear chamber plate 17 for discharging an object to be processed including waste dust that does not fall from the handling net 18. Provide.
A second processing device 36 for processing the second object collected by the second conveyor 28 is provided on the front side of the dust removal processing device 30.
The second processing drum 37 of the second processing device 36 is arranged concentrically with the dust removal processing drum 31. The second processing cylinder 37 is configured to convey the object to be processed toward the upper end side of the swing sorting shelf 22 in the direction opposite to the conveying direction of the grain supply / conveying device 13 and to the side of the handling net 18. Is located.
Reference numeral 38 denotes a suction dust exhaust fan, 38 A denotes a dust suction port, and 39 denotes a casing of the suction dust exhaust fan 38.

Therefore, the front side portion of the end side portion of the handling chamber 12 where the handling net 18 does not exist is formed in the dust exhaust communication portion H, and the dust exhaust communication port 33 is formed in the dust exhaust communication portion H.
The rear side portion of the end side portion of the handling chamber 12 where the handling net 18 does not exist is formed in the stabbed grain recovery unit (fourth processing chamber) S. The rear part of the handling cylinder 11 is extended and faced in the dust discharge communicating part H and the stabbed grain collecting part S.
A front portion of the discharge port 35 is formed in a front leakage portion 45 having a larger mesh size than that of the handling net 18, and a rear leakage portion 46 having a larger mesh size than the front leakage portion 45 is disposed on the rear side of the front leakage portion 45. The drop portion 47 is formed on the rear side of the rear leakage portion 46, and a drop guide 48 is provided in the drop portion 47.
The front side leakage portion 45 is provided at a position aligned with the dust discharge communication port 33, and the front side leakage portion 45 serves as a resistance when dropping waste that does not fall from the handling net 18 reaching the discharge port 35. Without moving downward from 35 as it is, the transition from the dust discharge port 33 to the dust treatment apparatus 30 is assisted, the load on the swing sorting device 23 is reduced, and the sorting efficiency is improved.

In other words, if the discharge port 35 is configured to be open, an object to be processed such as waste that does not fall from the handling net 18 reaching the discharge port 35 falls as it is, and the efficiency of transfer to the dust treatment apparatus 30 is reduced. Of the processed objects that do not fall from the handling net 18, a larger processed object that does not fall from the front leakage portion 45 is transferred from the dust discharge port 33 to the dust processing apparatus 30, and the efficiency of transfer to the dust processing apparatus 30 is increased. As a whole, the sorting accuracy and sorting efficiency are improved.
The front leakage portion 45, the rear leakage portion 46, and the dropping portion 47 of the discharge port 35 have different leakage diameters.
The front side leakage portion 45 includes a front side partition plate 50 which is vertical in the circumferential direction of the handle cylinder 11 at the front end portion thereof.
A first partition plate (intermediate partition plate) 51 is provided between the front leakage portion 45 and the rear leakage portion 46 in the circumferential direction.
The rear leakage portion 46 has a second partition plate (rear partition plate) 55 arranged in the circumferential direction of the handling cylinder 11 at the rear end thereof, and the first partition plate 51 is the lowest, and the front side The second partition plate 55 is formed higher than the partition plate 50.
For this reason, among the objects to be processed that do not fall from the handling net 18, the large object to be processed receives the resistance of the front leakage portion 45 that has a small scale, and shifts (feeds) from the dust discharge port 33 to the dust treatment apparatus 30. Smoothly, the rear leakage portion 46 drops the object to be processed on the swing sorting shelf 22 from a larger scale than the front leakage portion 45 to prevent clogging at the discharge port 35, and to the dust disposal apparatus 30. Improve migration efficiency and improve sorting accuracy and sorting efficiency as a whole.

In addition, a vertical second partition plate 55 is provided between the dust discharge communication portion H and the stinging particle collection portion S, and the second partition plate 55 is provided between the front leakage body 54 and the rear leakage portion 46 of the front leakage portion 45. It is formed higher than the intermediate partition plate 51 provided between the rear leakage body 58.
The second partition plate 55 formed higher than the first partition plate (intermediate partition plate) 51 promotes the transition to the dust disposal apparatus 30 even if the amount of the object to be processed increases, and the stab particle recovery unit S Suppresses the flow of the material to be processed to reduce the fourth loss.
Thus, an upper partition plate 61 is provided on the handling cylinder upper cover 60 between the dust discharge communicating portion H and the stinged grain collection unit S, and the upper partition plate 61 is provided on the lower surface of the handling cylinder 11 on the upper side in the rotational direction. Is provided with a circular arc portion 62 (FIG. 4).
Therefore, it is suppressed that the sawdust is caught by the upper side partition plate 61, and the flow of a to-be-processed object is made smooth.
The side plate 63 of the threshing device 3 on the side of the Glen tank 5 is provided with a main body side partition plate 64 at substantially the same position as the second partition plate 55 in the front-rear direction, and the main body side partition plate 64 and the upper partition plate 61 are in front view. Configure to overlap.
Therefore, even if the main body side partition plate 64 is present, it does not affect the opening and closing of the handling cylinder upper cover 60, and the main body side partition plate 64 and the upper partition plate 61 smooth the flow of the object to be processed.

In this case, the upper partition plate 61 is positioned on the rear side with respect to the main body side partition plate 64.
Therefore, it is possible to prevent the sawdust from entering the fourth processing chamber S from the gap between the main body side partition plate 64 and the upper partition plate 61, and from the dust removal communication portion H for cereal removal to the dust removal processing device 30. The transition can be made smooth.
Further, the main body side partition plate 64 and the handling cylinder upper cover 60 may be arranged without being overlapped in a front view.
A cutting blade frame 66 is provided on the lower side in the rotational direction of the end portion of the upper partition plate 61, and the cutting blade frame 66 is provided with a cutting blade 68 having a pair of front and rear blade portions 67.
That is, of the partition plates, the upper partition plate 61 fixed to the handling cylinder upper cover 60 is arranged so that the left end of the machine body is on the axial center side of the handling cylinder 11 with respect to the cutting blade frame 66.
Therefore, it is suppressed that the sawdust is caught by the upper side partition plate 61, and the flow of a to-be-processed object is made smooth.
The cutting blade frame 66 is fixed to the machine frame 70 of the threshing device 3.

The cutting edge 68 is provided on the front side of the machine body of the upper partition plate 61 (FIG. 6).
Therefore, the cutting waste 68 is cut by the cutting blade 68 so that it is not taken into the dust disposal apparatus 30 and enters the stab particle recovery unit S, and the recovery efficiency of the stab particles is improved.
FIG. 8 shows another embodiment of the arrangement of the cutting blades 68, and a pair of the cutting blades 68 are provided on both the front and rear sides of the main body side partition plate 64 and the upper partition plate 61.
Therefore, the cutting waste 68 is cut by the cutting blade 68 so that it is not taken into the dust disposal apparatus 30 and enters the stab particle recovery unit S, and the recovery efficiency of the stab particles is improved.
FIG. 9 shows another embodiment of the arrangement of the cutting blades 68, and the cutting blades 68 are provided in parallel with the cutting blade frame 66 at the location facing the dust discharge communication port 33.
Therefore, the cutting waste 68 that is not taken into the dust removal processing device 30 is cut by the cutting blades 68 arranged in parallel to improve the recovery efficiency of the stabbed grains.
A guide 72 for returning dust in the handling chamber 12 to the front side of the machine body is provided on the handling cylinder upper cover 60 in a spatial position that does not come into contact with the tooth handling 10 in the front portion near the upper partition 61 (FIG. 10).
Therefore, it is easy to take in dust into the dust disposal apparatus 30 and makes it difficult for dust to enter the stabbed grain collection unit S.

A cutting edge 68 is provided facing the lower end of the guide 72 in the rotational direction of the handle cylinder 11 (FIGS. 11 and 12).
Therefore, the dust accumulated in front of the upper partition plate 61 of the stabbed grain collection unit S is cut by the cutting blade 68 so that the dust collected can be easily taken into the dust disposal apparatus 30.
In addition, a cutting edge 68 may be provided on the front side of a line on the circumferential surface of the handling cylinder 11 corresponding to the front side end of the guide 72.
A waste transporting device 75 is provided at the end of the grain supply and transport device 13.
76 is a stocker-side waste transporting device that transports the root side of waste, 77 is a stocker-side waste transporting device that transports the tip of the waste, 78 is a stocker-side waste transporting device 76 is an endless stock An original conveying chain 79 is a conveying lug provided in a plurality of undulations at a predetermined interval on the tip chain 80, 81 is a rejection input shaft to which the rotation of the handling cylinder 11 is transmitted, and an intermediate portion of the rejection input shaft 81 Passes through the tip side waste transporting device 77, and a stock chain drive gear 82 of a stock transport chain 78 is provided at the other end of the waste input shaft 81.

The stock chain drive gear 82 is meshed with an intermediate portion of the stock source transport chain 78, and a tip intermediate transmission gear 83 is provided on the rear side of the stock source chain drive gear 82 to mesh.
84 is a tip transmission shaft, and 85 is a tip input gear.
The length between the stock chain drive gear 82 and the tip input gear 85 is set to a length that divides the stock transport chain 78 into approximately three equal parts.
For this reason, the relative position of the stock transport chain 78 and the rail 86 is favorably maintained.
The length of the chain retainer 87 provided between the stock chain drive gear 82 and the tip input gear 85 is half the length of the stock transport chain 78 between the stock chain drive gear 82 and the tip input gear 85. That's it.
Therefore, the flutter of the stock transport chain 78 is suppressed.
A gear 88 is rotatably provided on the reject input shaft 81 passed through the intermediate portion of the tip chain 80 to suppress interference between the tip chain 80 and the reject input shaft 81.
The gear 88 is positioned at the front side of the intermediate portion of the tip chain 80.
Therefore, the flutter of the tip chain 80 is suppressed.
An oiling portion (not shown) of the stock transport chain 78 is provided in the vicinity of the rear of the tip input gear 85.
Therefore, maintenance is facilitated.

(Operation of Example)
The cereal mash that has traveled by the traveling device 2 and cut by the cutting unit 4 is supplied to the handling chamber 12 and threshed by the handling cylinder 11 of the handling chamber 12.
The threshed threshing falls on the swing sorting shelf 22 from the handling net 18, and is sorted by swinging the swing sorting shelf 22 and air blown from the Kara 19, and the grains are sorted by the swing sorting shelf 22. To the first conveyor 28, and the grains recovered by the first conveyor 28 are stored in the Glen tank 5.
Further, the second product collected on the second conveyor 28 is returned to the second processing device 36, reprocessed by the second processing cylinder 37 of the second processing device 36, and diffused and discharged to the start end of the swing sorting shelf 22. Is done.
Further, of the cereals threshed in the handling chamber 12, a part of the cereals that do not fall from the handling net 18 enters the dust treatment device 30 through the dust communication port 33 and is processed.
In addition, the processed material on the swing sorting shelf 22 is wind-selected in the wind sorting chamber 21, and among the processed materials that do not fall from the swing sorting shelf 22, sawdust and dust are sucked and discharged to the outside by the suction dust exhaust fan 38. The

Further, of the threshing threshed in the handling chamber 12, a part of the threshing that does not fall from the handling net 18 reaches the discharge port 35 at the end of the handling chamber 12.
Further, of the threshing that has been threshed in the threshing chamber 12, a part of the threshing that does not fall from the handling net 18 reaches the discharge port 35 at the end of the threshing chamber 12.
A front portion of the discharge port 35 is formed in a front leakage portion 45 having a larger mesh size than that of the handling net 18, and a rear leakage portion 46 having a larger mesh size than the front leakage portion 45 is disposed on the rear side of the front leakage portion 45. The drop part 47 is formed on the rear side of the rear leakage part 46, and a drop guide 48 is provided in the drop part 47, and the front leakage part 45 and the rear leakage part 46 are connected to the dust discharge communication port 33. Since the front leakage portion 45 becomes a resistance when dropping waste that does not fall from the handling net 18 reaching the discharge port 35, the front leakage portion 45 does not fall down and discharge from the discharge port 35 as it is. Assisting the transition from the dust discharge communication port 33 to the dust removal processing device 30, reducing the load on the swing sorting device 23 and improving the sorting efficiency.

In other words, if the discharge port 35 is configured to be open, an object to be processed such as waste that does not fall from the handling net 18 reaching the discharge port 35 falls as it is, and the efficiency of transfer to the dust treatment apparatus 30 is reduced. Among the objects to be processed that do not fall from the handling net 18, larger objects to be processed that do not fall from the front leakage portion 45 and the rear leakage portion 46 are transferred from the dust discharge communication port 33 to the dust treatment device 30, and are subjected to dust treatment. The efficiency of transfer to the apparatus 30 is improved, and the sorting accuracy and sorting efficiency are improved as a whole.
The exhaust port 35, the dust exhaust communication portion H, and the fourth processing chamber S are partitioned by arranging a front front partition plate 50 and a first partition plate 51 in parallel in the circumferential direction of the handling cylinder 11. 50, 51, and 55 become resistances, improving the transfer efficiency to the dust disposal apparatus 30, and reducing the load on the swing sorting shelf 22.

Thus, since the upper barrel cover upper cover plate 61 is provided on the upper barrel cover 60 between the dust exhaust communication portion H and the stabbed grain recovery portion S, the upper upper partition plate 61 is provided. Resistance is given to the movement of the object to be processed, the transfer efficiency to the dust disposal apparatus 30 is improved, and the load on the swing sorting shelf 22 is reduced.
In addition, since the arcuate arc portion 62 is provided on the lower surface of the upper partition plate 61 on the upper side in the rotational direction of the handling cylinder 11, the upper partition plate 61 is restrained from being caught by the upper partition plate 61. Make the flow smooth.
The side plate 63 of the threshing device 3 on the Glen tank 5 side is provided with a main body side partition plate 64, and the main body side partition plate 64 and the upper partition plate 61 are configured to partially overlap in front view. Even on the side of the barrel 11, the main body side partition plate 64 provides resistance to the movement of the object to be processed, thereby improving the efficiency of transfer to the dust disposal apparatus 30 and reducing the load on the swing sorting shelf 22.

Moreover, since the main body side partition plate 64 is provided on the side plate 63 of the threshing device 3 on the side of the Glen tank 5, the presence of the main body side partition plate 64 does not affect the opening and closing of the handling cylinder upper cover 60, and The partition plate 64 and the barrel upper cover 60 smooth the flow of the object to be processed.
In this case, since the handling cylinder upper cover 60 is positioned on the rear side with respect to the main body side partition plate 64, the sawdust enters the fourth processing chamber S from the gap between the main body side partition plate 64 and the upper partition plate 61. This can be prevented, and the transition from the dust removal communication part H for cerealing to the dust treatment apparatus 30 can be made smooth.
A cutting blade frame 66 is provided on the lower side in the rotational direction of the end portion of the upper partition plate 61, and a cutting blade 68 having a pair of front and rear blade portions 67 is provided on the cutting blade frame 66. Suppressing scraps and smoothing the flow of workpieces.
Since the cutting blade 68 is provided on the front side of the machine body of the main body side partition plate 64, the cutting blade 68 cuts the swarf that is not taken into the dust disposal apparatus 30 and tries to enter the stab particle collection unit S, and the stab particles Recovery efficiency is improved.

Further, in another embodiment of the arrangement of the cutting blades 68 in FIG. 8, a pair of blade portions 67 of the cutting blades 68 are provided on both the front and rear sides of the main body side partition plate 64, so that they are not taken into the dust removal treatment device 30. The cutting waste 68 is cut by the cutting blade 68 to improve the recovery efficiency of the stabbed grains.
Further, in another embodiment of the arrangement of the cutting blades 68 in FIG. 9, since the cutting blades 68 are provided in parallel to the cutting blade frame 66 at the location facing the dust exhaust communication port 33, The cutting waste 68 that is not taken in is cut by the parallel cutting blade 68 to improve the recovery efficiency of the stabbed grains.
A guide 72 for returning dust inside the handling chamber 12 to the front side of the fuselage is provided on the handling cylinder upper cover 60 in a spatial position that does not contact the tooth handling 10 in the front portion near the upper partition 61. While making it easy to take in the dust removal processing apparatus 30, it makes it difficult for dust to enter the stabbed grain collection unit S.

Since the blade portion 67 of the cutting blade 68 is provided so as to straddle the upper circumferential line of the handle cylinder 11 corresponding to the front end of the guide 72, the dust collected in front of the upper partition plate 61 of the stabbed grain collecting portion S. The object is cut by the cutting blade 68 so that the dust is easily taken into the dust treatment apparatus 30.
Each of the above-described embodiments is illustrated or described separately or mixed for easy understanding, but these can be combined in various ways, and the expression, configuration, action, etc. It is not limited, and there are of course cases where a synergistic effect is obtained.

  DESCRIPTION OF SYMBOLS 1 ... Airframe frame, 2 ... Traveling apparatus, 3 ... Threshing device, 4 ... Cutting part, 5 ... Glen tank, 6 ... Steering part, 11 ... Handling cylinder, 12 ... Handling room, 13 ... Grain supply / conveying device, 14 ... Supply conveyance chain, 16 ... front plate, 17 ... rear plate of handling chamber, 18 ... handling net, 19 ... red pepper casing, 20 ... red pepper casing, 21 ... wind sorting chamber, 22 ... swing sorting shelf, 23 ... swing sorting device, 24 ... Transfer shelf, 25 ... Sheave, 26 ... Strolack, 27 ... First conveyor, 28 ... Second conveyor, 29 ... Selection net, 30 ... Dust removal processing device, 31 ... Dust removal treatment cylinder, 33 ... Dust removal Communication port, 35 ... discharge port, 36 ... second processing device, 37 ... second processing cylinder, 38 ... suction dust exhaust fan, 45 ... front side leaking part, 46 ... rear side leaking part, 47 ... dropping part, 48 ... falling Guide, 50, 51 ... Partition plate, 60 ... Handling cylinder upper cover, 61 ... Upper partition plate, 62 ... Arc part, 63 Side plate, 64 ... Body side partition plate, 66 ... Cutting blade frame, 67 ... Blade portion, 68 ... Cutting blade, 70 ... Machine frame, 72 ... Guide, 75 ... Exhaust / conveyance device, 76 ... Stock source side excretion / conveyance device , 77... Tip side waste transporting device, 78... Stock transport chain, 79... Transport lug, 80... Tip chain, 81 ... stock input shaft, 82 ... stock chain drive gear, 83. ... head transmission shaft, 85 ... tip input gear, 87 ... chain presser, 88 ... gear.

Claims (5)

  A swing sorting shelf (22) for sorting the grains in the object to be processed is provided below the handling chamber (12) provided with a shaft (11). The lower side of the swing sorting shelf (22). In the threshing apparatus provided with the tang (19), the dust discharge communicating part (30) communicating with the dust treatment apparatus (30) provided on the rear side of the handling chamber (12) at the rear part of the handling chamber (12) H) is formed, and a fourth processing chamber (S) for collecting the grains stuck in the waste after threshing is formed on the rear side of the dust discharge communication part (H), and the dust discharge communication part (H) Between the fourth processing chamber (S), the main body side partition plate (64) provided on the side plate (63) of the threshing device (3), and the upper partition plate (61) provided on the barrel upper cover (60). A threshing device in which the main body side partition plate (64) and the upper partition plate (61) are arranged so as to partially overlap in a front view.   The main body side partition plate (64) located on the upper side in the rotational direction of the handle cylinder (11) among the main body side partition plate (64) and the upper partition plate (61). A threshing device disposed on the front side of the upper partition plate (61) located on the lower side in the rotational direction of the trunk.   The threshing apparatus according to claim 2, wherein a cutting blade (68) is provided on the front side of the main body side partition plate (64).   The threshing apparatus according to claim 1 or 2, wherein a cutting blade (68) is provided on each of a front side of the main body side partition plate (64) and a rear side of the upper partition plate (61).   4. The threshing apparatus according to claim 2, wherein a guide (72) for providing resistance to backward transfer of the dust is provided in the dust communication part (H).

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