JP2010045982A - Threshing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a threshing apparatus capable of preventing a third loss, and well unloading straw wastes to the outside of a machine. <P>SOLUTION: The wind for sorting is fed toward a waste discharge port 27 on the transportation downstream side of a material to be treated with a fan mill 10 of the threshing apparatus, and a shielding member 20 capable of shielding the dust discharge port 27, and displaceable on the transportation downstream side of the material to be treated is included. The upper part of the shielding member 20 is hung from a supporting member 22, and the lower part thereof is formed from a plurality of platy members 21a individually shakable in the width direction. The third loss due to the jumping up of chaff is prevented by the shielding member 20. Furthermore, the straw wastes are readily released from gaps between the adjacent platy members 21a. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a threshing apparatus including a shielding member that restricts the opening of a dust outlet that discharges sorted waste to the outside of the machine.

  In the conventional threshing apparatus, for example, as disclosed in Patent Document 1, a shielding member is provided in the vicinity of the dust outlet. The shielding member is provided to prevent the grain repelling from being discharged from the dust outlet to the outside of the machine when the amount of swarf discharged outside the machine is reduced by the sorting wind by the Karatsu. Yes.

JP-A-8-252024 (FIG. 3)

As disclosed in Patent Document 1, the shielding member provided in the vicinity of the dust outlet can prevent so-called third loss in which the grains are discharged from the dust outlet.
Since the shielding member provided in the vicinity of the dust outlet of the conventional structure is formed of a series of plate-like bodies that are long in the width direction, the shielding member is Operates in the direction to be closed. When a series of shielding members are in a closed position, the shielding members are formed in a series even if the waste is about to be discharged by the sorter wind of Kara, so the shielding members are open even if the waste hits the shielding members. Therefore, the shielding member hinders the discharging of the sawdust, and there is a disadvantage that the sorting efficiency cannot be kept good.

  The object of the present invention is to realize a threshing device that can prevent the third loss and that can efficiently discharge the swarf even when the wind power of the red pepper is relatively weak at a light load. .

(Configuration of the first invention)
The first invention is provided with a swing sorting device below the handling chamber, and provided with a red pepper on the lower side of the processed material transfer side of the swing sorting device, to the dust outlet on the lower transfer side of the processed product. A threshing device having a shielding member that can supply the sorting air in the direction and shield the dust outlet and be displaceable on the lower conveyance side of the processed product, the shielding member having an upper portion suspended from the support member In addition, the lower portion is formed of a plurality of plate-like portions that can swing independently in the width direction.

(Function)
According to the first aspect of the present invention, when there is a large amount of sawdust discharged outside the machine due to sorting, the shielding member is largely retracted rearward by the strong sorting wind, and the dust outlet is greatly opened. In addition, when the amount of the sorting air that is supplied from the tang is reduced due to a decrease in the amount of sorting performed when the aircraft is turning, the shielding member swings in the closing direction and the dust outlet The opening narrows.

  As the threshing amount decreases, even if the output is reduced and the selection air volume by the tang is reduced slightly, the cocoon that has moved to the vicinity of the dust outlet tends to rebound (jump) and be easily discharged outside the machine. However, according to the first feature of the present invention, the soot that is about to be discharged out of the machine is restrained from being received by the shielding member and discharged out of the machine. On the other hand, the upper part of the shielding member is suspended from the support member, and its lower part is formed of a plurality of plate-like parts that can swing independently in the width direction. Since the waste scraps are discharged not only from the lower space where the shielding member is narrowed, but also from the gaps between the widened plate-like parts, each plate-like part is shaken or the side part is turned over. The hull can be collected well by the shielding member and the third loss can be reduced, but the waste can be discharged out of the machine without causing clogging and the sorting efficiency can be improved. I was able to.

(The invention's effect)
By forming the lower part of the shielding member with a plurality of plate-like parts that can swing independently in the width direction, it does not hinder the discharge of sawdust at a high flow rate with a large amount of processing, When the amount of processing is low, such as when turning, at low flow rates, even if the output (selection air volume) is reduced, each narrow plate-shaped part is easily turned up, and a gap is likely to occur between adjacent plate-shaped parts. The third loss can be effectively prevented while discharging the waste well.

(Configuration of the second invention)
According to a second invention, in the configuration of the first invention, the shielding member is formed of an elastically deformable plate-like body, the upper part is integrally connected in the width direction, and the lower part thereof is divided into left and right by a plurality of slits in the width direction. It is formed in the plate-shaped part.

(Configuration of the third invention)
According to a third invention, in the configuration of the first invention, the plate-like portion of the shielding member is constituted by a plurality of small plate-like bodies divided from the upper end to the lower end.

(Function and effect)
The second invention can provide the same effects as the first invention by a plate-like body formed by a plurality of slits in the width direction, and the third invention can have a plurality of plate-like bodies in the width direction divided from the upper end to the lower end.

(Configuration of the fourth invention)
According to a fourth aspect of the present invention, in the first to third aspects of the invention, the shielding member is made of a synthetic resin made of vinyl chloride.

(Function and effect)
According to the fourth invention, the shielding member can be made of hard vinyl chloride. However, if it is made of soft vinyl chloride, it is highly flexible, and the side portion with the slits can be partially turned over easily, and the air volume can be reduced. Even if a small amount of swarf is reduced, it can be easily discharged from between the slits, and the dust discharging function can be improved.

(Constitution)
According to a fifth invention, in the configurations of the first to fourth inventions, the shielding member is configured such that two or more plate-like bodies can be overlaid.

(Function and effect)
According to the fifth invention, for example, in the case of a relatively heavy crop, two or more plate-like bodies may be stacked so that the plate-like bodies cannot be easily turned up. As a result, it is possible to reduce a state in which a relatively heavy crop easily turns up the plate-like body and is discharged. On the other hand, in the case of relatively light crops (such as wheat), the number of stacked plate bodies can be reduced, or the plate bodies can be easily turned up as a single plate body without overlapping. You can do it. Thereby, it is possible to reduce a state in which relatively light sawdust cannot be turned up without being able to turn up the plate-like body.

  FIG. 1 shows a threshing apparatus 1 mounted on a combine. In the best mode for carrying out the present invention, in order to show an example in which the threshing apparatus 1 is mounted on a combine, the left side in FIG. 1 corresponds to the upper conveyance side of the processed material, and the right side in FIG. This corresponds to the lower conveyance side of the processed material. In the following description, the upper side of the processed product is indicated as the front, and the lower side of the processed product is indicated as the rear.

  This threshing apparatus 1 has a handling chamber A on the upper side, a swing sorting apparatus B on the intermediate side, and a recovery apparatus C on the lower side. In the threshing apparatus 1, a handling cylinder 3 for handling and processing the harvested cereal while being held and fed by the feed chain 2 is pivoted on the handling chamber A, and the receiving net 5 for leaking the treated product. Is disposed below the barrel 3.

  The swing sorting device B includes a grain pan 6 that receives the processed material leaked from the receiving net 5, a chaff sheave 7 and a stroll rack 8 that are sequentially positioned behind the grain pan 6, and a grain sheave 9 that is positioned below the chaff sheave 7. In addition to being installed on a sheave case 16 that is driven to swing back and forth, a tang 10 that can adjust the air volume is provided below the gren pan 6.

  The swing sorting device B receives the processed material leaked from the handling chamber A by the chaff sheave 7 whose opening degree can be adjusted and the coarse sorting portion 39 for performing rough sorting while swinging and transferring, and leaked from the coarse sorting portion 39. The sheave case 16 is provided with a fine sorting unit 40 that sorts the sorted processed products into grains and second products while swinging and transferring them. A straw transporting stroller 8 extending behind the chaff sheave 7 toward the lower side of the processed product is disposed so as to operate while receiving the sorting air from the bottom 10 so as to discharge the waste. It is configured to be discharged from the dust outlet 27 to the outside of the machine body.

  The red pepper 10 is provided with a red fan 23 in a red case 23 and disposed below the front part of the handling room A.

  The Strollac 8 collects the sieved grains while being transported to the rear dust outlet 27 in cooperation with the sorting air generated by the Karatsu 10 while shaking the swarf by the swinging sorter B swinging. The

  The recovery device C is provided with a first object conveying screw 11 that recovers a leakage (first thing) from the grain sheave 9 and laterally feeds it horizontally to the lower side of the grain sieve 9, as well as the grain sheave 9 and the chaff sheave. A second object conveying screw 12 that collects the leakage (second object) from 7 etc. and laterally feeds it to the horizontal one side is disposed.

  As shown in FIG. 1, a processing cylinder 17 is provided at the lower rear of the handling cylinder 3, and the processed material discharged from the rear end of the handling cylinder 3 is unwound and processed by the processing cylinder 17, and the grain is taken out from the dust. It is configured as follows. A dust exhaust fan 4 is disposed behind the processing cylinder 17, and an upper fan guide 14 is attached to cover the upper side of the dust exhaust fan 4. A shielding member 20, which will be described later, is attached over the entire width between the left and right side walls 18 and 18 below the lower fan guide 15 attached so as to cover the lower side of the dust exhaust fan 4, and near the dust outlet 27. A dust-removing lower lip plate 28 is disposed at the rear end of the sheave case 16 located at a position so as to be freely adjustable so as not to prevent the swinging of a shielding member 20 described later.

FIG. 2 is a longitudinal side view of the handling cylinder 3 showing details of the handling bar 31 forming the extensible handling teeth 31a at the tip, and FIG. 3 is a longitudinal rear view of the handling cylinder 3.
The drum 30 of the barrel 3 having the teeth 32 has a front end wall 30a and an intermediate wall 30b fixed to the barrel rotating shaft 33, and a rear end wall 30c fixed to the rear wall 26 of the chamber A. Further, an input pulley 34 is fixed to a shaft portion protruding forward from the front wall 25 of the handling chamber A of the handling cylinder rotating shaft 33. A fixed bracket 36 and a second fixed shaft 37 are extended from the first fixed shaft 35 in a crank shape to the first fixed shaft 35 at a position below the first fixed shaft 35 inside the handling cylinder 3. A rear end portion of the barrel rotation shaft 33 is rotatably supported on a shaft support member 41 fixed to the fixed shaft 37. Two handling bars 31 are supported on the second fixed shaft 37 so as to be rotatable around the second fixed shaft 37. When the tip of the handling bar 31 is positioned downward and downward, the tip of the handling bar 31 is provided. When the handle 31 is positioned upward and upward, the non-projecting posture retracted from the drum 30 of the handling cylinder 3 is formed. The length of the handling bar 31 is set so as to be.

  The base of the handling bar 31 is rotatably supported by the second fixed shaft 37, and the free end of the handling bar 31 is held in a state of being guided by a handling bar guide body 38 having a handling bar guide hole formed on the outer periphery of the drum 30. Has been. Accordingly, when rotational power is received from the input pulley 34, the handling cylinder 3 rotates around the handling cylinder rotation shaft 33, and the handling bar 31 is guided by the handling bar guide body 38 of the drum 30, and is rotated around the second fixed axis 37. 3, and protrudes outward from the drum 30 as the extensible handle 31a at the free end is directed downward, retracts into the drum 30 as the extendable handle 31a rotates upward, and is shown in FIG. 3 near the upper end position. It will be in the most retracted state. In this way, the expansion / contraction teeth 31a handle the scissors in the lower part by the expansion / contraction operation of the handling bar 31, and the handling bar 31 is retracted in the vicinity of the upper end part. As a result, the processed product with wrinkles is released and threshed, so that the threshing process can be performed efficiently.

  As shown in FIGS. 4 and 5, the shielding member 20 is a support member for attaching a shielding plate 21 made of a plate-like body to the lower surface of the lower fan guide 15 attached between the left and right side walls 18, 18. 22 is fixed, and the shielding plate 21 is suspended by screwing the support member 22 at a plurality of positions in the width direction.

As shown in FIG. 5, the shielding member 20 includes a shielding plate 21 whose upper portion is suspended from the support member 22, and the shielding plate 21 is integrally connected in the width direction at the upper portion, and in the width direction at a lower portion thereof. The slit 19 divided | segmented into right and left in multiple places is formed and comprised.
The shielding plate 21 is formed of a soft elastically deformable vinyl chloride resin.
In this way, by forming the shielding member 20 from a lightweight elastically deformable resin, the shielding member 20 is moved rearward according to the air volume of the sorting air sent from the red pepper 10 toward the rear dust outlet 27. It is configured to swing as it lifts.

  More specifically, in the state where the air volume of the tang 10 is maximized, the shielding plate 21 suspended from the support member 22 of the shielding member 20 is largely bent backward, and the lower end portion of the shielding plate 21 swings rearward and upward. By moving, the space between the dust-removing lower lip plate 28 is greatly opened, and soot is discharged outside the machine.

  Since the shielding plate 21 is formed into a plurality of small plate-like portions 21a in the width direction by slits 19 in which the lower majority portion except the upper end portion is cut in the vertical direction, the plate at a location where wind perception is strong due to the Kara 10 The shape portion 21a has a larger amount of rearward deflection than a weakly wind-affected portion according to the air volume, and an opening according to the air volume is formed, and the exhaust wall is discharged to the outside with an opening volume according to the air volume. Compared to a conventional shielding device without a slit, the processing efficiency is good.

  When the threshing amount is light and the load is light, the output is loosened and the air volume by the tang 10 is weakened. At this time, the shielding member 20 blocks the dust outlet 27 and shields it freely, and when grain waste containing grains that could not be recovered by the recovery device C is supplied from the front, this grain is supplied to the shielding member 20. The swarf hits and the grains with heavy specific gravity fall into the sheave case 16. Even if the shavings having a low specific gravity hit the shielding member 20, they are guided to the rear through the space between the shielding member 20 and the sheave case 16 on the sorting wind supplied from the tang 10. In this way, even when repellent particles are about to be discharged outside the machine at a low flow rate, they are prevented from being discharged from the dust outlet by the shielding member 20 and are guided into the sheave case 16, so that they are discharged from the dust outlet 27. Third loss can be reduced.

[First Alternative Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention], the shielding plate 21 is composed of a single plate-like body whose upper portion is integrally connected in the width direction. You may comprise by arranging two or more small-sized plate-shaped bodies (plate-shaped part) divided | segmented over in the width direction.

[Second Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention], the shielding plate 21 is made of a soft vinyl chloride resin that can be elastically deformed. However, the shielding plate 21 is divided into a small width from the upper end to the lower end. In the case where the shield plate 21 is composed of a rigid body, the shielding plate 21 is composed of hard vinyl chloride or other plate body that is not easily elastically deformed, and each plate body is predetermined by a biasing member such as a coil spring when not working. It is supported so that it can rotate around the horizontal axis so as to maintain an angular posture, and each plate-like body can rotate independently around the horizontal axis according to the pressing force of the sawdust during work. Also good.

[Third Another Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention], an example in which the shielding member 20 is formed of a material made of vinyl chloride synthetic resin has been shown. Synthetic rubber, plastic plates, etc. may be employed.

[Fourth Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention], the slit 19 is formed in the shielding plate 21, but as the slit 19, the single shielding plate 21 is simply cut by a predetermined length with a cutter. Instead, it may be cut so as to form a narrow gap. Moreover, in the 1st another form, you may arrange in parallel in the state which forms a small clearance gap between adjacent narrow plate-shaped body pieces.

[Fifth Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention], the example in which the shielding plate 21 of the shielding member 20 is formed by a single plate-like body formed of a vinyl chloride resin material has been shown. It is good also as a plate-like body which piled up two thin plate-like bodies, or was multiplexed more than that.
By changing the number of stacked plates, the opening for the same air volume can be changed, so depending on the crop conditions such as rice and wheat, for example, when harvesting wheat, the plate is more than in the case of rice. There is an advantage that the opening degree adapted to the crop conditions can be obtained by reducing the number of stacked sheets.

[Other Embodiments of the Invention]
In the case where the shielding plate 21 is formed of soft vinyl chloride or the like so as to be elastically deformable, in a state where the swing sorting device B is driven to swing back and forth in a no-load state (a state where the wind sorting by Kara is not performed), The lower end portion of the shielding plate 21 is always in contact with a member (for example, the Strollac 8) attached to the sheave case 16 (in a state where the sheave case 16 is located at the lowest position). It is configured to follow and swing. In this way, the shielding plate 21 can be prevented from being sucked by the dust exhaust fan 4, and the adjacent small width can be obtained by the swinging of the sheave case 16 even in a working state where the swinging air is sorted with a relatively light load. As a result, a gap is formed between the plate-like portions, and good sorting can be performed while preventing third loss.

Longitudinal side view of threshing device Longitudinal side view of the barrel Longitudinal rear view of the barrel Vertical side view showing the structure of the shielding member Rear view showing the structure of the shielding member

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Kara 19 Slit 20 Shielding member 21a Plate-like part 22 Support member 27 Dust outlet A Handling chamber B Swing sorter

Claims (5)

A swing sorting device is provided below the handling chamber, and a red pepper is provided below the upper side of the processed material transported by the swing sorting device. In the threshing apparatus provided with a shielding member capable of shielding the dust outlet and displaceable on the lower conveyance side of the processed product,
The threshing apparatus is characterized in that the shielding member has an upper portion suspended from a support member and a lower portion formed of a plurality of plate-like portions that can independently swing in the width direction.   The shield member is formed of an elastically deformable plate-like body, the upper part is integrally connected in the width direction, and the lower part thereof is formed in a plate-like part divided into left and right by a plurality of slits in the width direction. The threshing device according to 1.   The threshing apparatus according to claim 1, wherein the plate-like portion of the shielding member is constituted by a plurality of small plate-like bodies divided from the upper end to the lower end.   The threshing device according to any one of claims 1 to 3, wherein the shielding member is made of a synthetic resin made of vinyl chloride.   The threshing device according to any one of claims 1 to 4, wherein the shielding member is configured to be able to overlap two or more plate-like bodies.

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