JP2006254823A - Combine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine having a reduced length of the longitudinal direction of the machine body, while feeding sorting air effectively over the whole region of a chaff sieve. <P>SOLUTION: This combine is equipped with a swinging selection mechanism 150A including the chaff sieve 220, a primary trough 310 made of an inclined plate positioned on the front side and a primary flow cereal plate positioned on the rear side into a recessed shape from a side view, a winnower fan 410 arranged in front of and below the chaff sieve, a winnower fan case 420 having a fan case body 421 and an air passage case 422, and a primary air-deflecting plate 710 arranged on the upstream side in the flow direction of the sorting air flow from the swinging selection mechanism and dividing the sorting air as an upward wind and downward wind. The primary air-deflecting plate is arranged so that the end part on the upstream side in the flow direction of the sorting air is positioned in the air passage case and the end on the downstream side in the flow direction of the sorting air is protruded rearward from the rear end, and further the primary air-deflecting plate is made into an upward projection from a side view so as to direct the downward air to the primary flow cereal plate. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a combine.

The combine includes a harvesting unit that harvests the cereal, a threshing unit that threshs the cereal that has been harvested by the harvesting unit, and a selection unit that selects the grain from the cereal to be threshed by the threshing unit.
The sorting unit includes a swing sorting mechanism including a chaff sheave for sorting grains, and a wind sorting mechanism including a tang fan that sends sorting wind to the swing sorting mechanism.

By the way, the tang fan is disposed in front of and below the chaff sheave (see Patent Document 1).
That is, the tang fan is configured to supply the selection air obliquely from the front and the bottom to the rear and the upper side to the chaff sheave, and the selection air that has passed through the chaff sheave is desired or according to the specifications. With a suction fan that is provided, the light is discharged out of the machine together with light unnecessary items such as dust.

However, in the configuration in which the tang fan is disposed in front of and below the chaff sheave, the chaff sheave is brought close to the tang fan with respect to the longitudinal direction of the fuselage in order to shorten the length of the sorting portion in the longitudinal direction of the fuselage ( That is, when the chaff sheave is disposed forward, the sorting wind is difficult to be supplied to the entire area of the chaff sheave, particularly the front portion, and the chaff sheave sorting action is deteriorated.
On the other hand, if the chaff sheave is separated from the tang fan in the longitudinal direction of the fuselage in order to supply the sorting air to the entire area of the chaff sheave (that is, the chaff sheave is disposed rearward), the longitudinal length of the sorting unit is reduced. It becomes long.
JP 2004-97164 A

  The present invention has been made in view of the above prior art, and it is an object of the present invention to provide a combine that can effectively supply sorting air to the entire area of the chaff sheave while shortening the longitudinal length of the sorting unit. And

In order to achieve the above object, the present invention provides a rocking sorter mechanism having a chaff sheave that sorts grains from the threshed grains that have been threshed by the threshing section, and a first basket disposed below the chaff sheave. A first bowl that is concave in a side view by an inclined plate located on the front side and a first cereal plate located on the rear side, and disposed in front of and below the chaff sheave. And a fan case main body that surrounds the red fan and a front end portion that is fluidly connected to the fan case main body and a rear end portion that opens toward the swing selection mechanism. And a first wind direction plate disposed on the upstream side in the flow direction of the sorting wind from the swing sorting mechanism, the first wind direction plate dividing the sorting wind into an upper wind and a lower wind. Combine with Subjected to.
The first wind direction plate has an end on the upstream side in the sorting air flow direction located in the air passage case, and an end on the downstream side in the sorting air flow direction protrudes rearward from the rear end of the air passage case. Further, the first wind direction plate is convex upward in a side view so as to direct the downward wind toward the first flown grain plate.

In one aspect, a Glen sheave may be further provided between the chaff sheave and the first heel.
In such an aspect, the first wind direction plate is disposed below the grain sieve.

Preferably, the second wind direction plate divides the upper wind into a first upper wind that flows in the uppermost direction and a second upper wind that flows between the first upper wind and the lower wind. A second wind direction plate disposed above the wind direction plate may be provided.
The second wind direction plate has an end on the upstream side in the sorting air flow direction positioned in the air passage case, and an end on the downstream side in the sorting air flow direction projects rearward from the rear end of the air passage case. Furthermore, the second wind direction plate is convex upward in a side view so as to direct the second upward wind toward the first flown plate.

  In the various aspects, a suction fan located above the swing sorting mechanism, the suction fan for sucking the sort air from the Kara fan and discharging it outside the apparatus, and the rear of the chaff sheave The airframe is configured to guide the sorting air from the Kara fan to the suction fan between the Strollac that transports unnecessary items to the discharge passage at the rear of the airframe and the chaff sheave and the Strollack in the longitudinal direction of the airframe. And a third wind direction plate extending in the width direction.

Preferably, a lower end portion of the third wind direction plate is positioned below a lower end portion of the chaff sheave so as to be close to the first cereal plate.
More preferably, a plurality of the third wind direction plates arranged side by side in the longitudinal direction of the airframe with a gap between each other can be provided, and the plurality of third wind direction plates are located at the foremost wind direction. It is comprised so that an upper end part may be located upwards as it goes to the wind direction board which guides the selection wind guided most frequently by the said 1st flow grain board from a board.

  Preferably, the plurality of third wind direction plates may be configured such that a lower end portion thereof is positioned downward from a wind direction plate located on the front side to a wind direction plate located on the rear side.

As described above, in the present invention, the first wind direction plate disposed on the upstream side in the flow direction of the sorting wind from the swing sorting mechanism, the first wind direction plate dividing the sorting wind into the upper wind and the lower wind. And an end on the upstream side in the sorting air flow direction is located in the air passage case, and an end on the downstream side in the sorting air flow direction is arranged to protrude rearward from the rear end of the air passage case. In the side view, the downward wind is convex upward so that the downward wind is directed toward the first cereal board.
According to such a structure, the said downward wind can be reflected on a 1st flow grain board, and can be made to go upwards from a substantially perpendicular lower part.
Therefore, in order to shorten the length of the sorting unit in the longitudinal direction of the machine body, even if the chaff sheave is close to the tang fan in the longitudinal direction of the machine body (that is, the chaff sheave is arranged forward), it is effective over the entire area of the chaff sheave. Sorting air can be supplied.

In an aspect in which a Glen sheave is disposed between the chaff sheave and the first ridge, the first wind direction plate is disposed below the Glen sheave so that it is reflected by the first flow grain plate and is substantially vertical. Sorting air diffusing from below to above can be effectively supplied to the grain sheave and the chaff sheave.
Accordingly, it is possible to improve the efficiency of the sorting operation in the grain sheave and the chaff sheave while shortening the longitudinal direction of the sorting section.

  A second wind direction plate that divides the upper wind into a first upper wind flowing in the uppermost part and a second upper wind flowing between the first upper wind and the lower wind; A second wind direction plate disposed above the plate, the second wind direction plate having an end on the upstream side in the sorting air flow direction located in the air passage case and on the downstream side in the sorting wind flow direction. When the end portion is disposed so as to protrude rearward from the rear end portion of the air passage case, and the second upward wind is directed upward in the side view so as to be directed toward the first flown cereal plate, It is possible to more effectively form the flow of the sorting wind that diffuses from substantially vertically downward to upward.

  If a third wind direction plate is provided between the chaff sheave and the Strollac in the longitudinal direction of the machine body to guide the sorting wind from the Kara fan to the suction fan, the effective sorting wind from the Kara fan to the suction fan can be reduced. A flow can be formed.

  If the lower end portion of the third wind direction plate is positioned lower than the lower end portion of the chaff sheave so as to be close to the cereal plate that defines the air path of the selected wind from the tang fan, The effective area can be increased, and the flow of the sorting wind can be formed more effectively.

  In an aspect in which a plurality of the third wind direction plates are provided, the upper end portion is upward as it goes from the third wind direction plate located at the foremost position to the third wind direction plate that guides the most selected wind guided by the flown slab. If it arrange | positions in this, the flow of the effective selection wind from a Kara fan to a suction fan can be formed, maintaining the conveyance property of the unwanted material from a chaff sheave to a Strollac.

  Further, in the aspect in which a plurality of the third wind direction plates are provided, if the lower end portion is positioned downward from the third wind direction plate located on the front side to the third wind direction plate located on the rear side, The effective area of the third wind direction plate can be increased, and an effective sorting air flow from the tang fan to the suction fan can be formed.

Below, the combine which concerns on preferable embodiment of this invention is demonstrated, referring an accompanying drawing.
1 and 2 are a side view and a plan view of a combine 1A according to the present embodiment, respectively.

First, the overall configuration of the combine will be described.
As shown in FIG. 1 and FIG. 2, the combine 1 </ b> A includes a crawler type traveling device 1, a body frame 2 connected to the crawler type traveling device, and a driving unit disposed in front of the right side of the body frame 2. 14, a cutting and raising device 3 connected to the front portion of the machine body frame 2 so as to be movable up and down, conveying devices 8a, 8b and 8c for conveying the culm cut by the cutting and raising device 3, and the conveying A feed chain device 9 that inherits the stock of the culm from the devices 8a, 8b, and 8c and conveys it to the rear, and a threshing device that threshs the culm and sorts the cereal while being conveyed by the feed chain device 9 100, a grain tank 13 for storing the grain selected by the threshing apparatus 100, and a grain discharger for discharging the grain stored in the grain tank 13 to the outside 15, and a straw discharge chain 10 inherit the straw discharge from the feed chain 9, the straw discharge processing device 11 for processing the straw discharge that has been conveyed by the exhaust straw chain device 10.

  The mowing / raising device 3 includes a weed plate 4 provided at a front end, a cause mechanism 5 erected at the rear of the weed plate 4, and a cutting blade disposed at the rear of the cause mechanism 5. 7 so that the cereals sown by the weed board 4 are caused by the tine 6 provided in the raising mechanism 5 and the stock of the erected cereals is reaped by the cutting blade 7 It is configured.

  The conveying devices 8a, 8b, 8c include a lower conveying device 8a, an upper conveying device 8b, and a vertical conveying device 8c, and are configured to inherit the cereal stock from the vertical conveying device 8c to the feed chain device 9. ing.

The feed chain device 9 is configured to convey the culm backward in a state in which the tip of the culm is threshed by the handling barrel 130 in the threshing device 100.
The threshing apparatus 100 will be described later.

The Glen tank 13 is configured to store the first grain that is sorted by the threshing apparatus 100 and concentrated in the first basket 310 described below.
Specifically, the first grain collected in the first bowl 310 is carried into the Glen tank 13 via the first transport conveyor 330 and the cereal conveyor (not shown) described below.
In the present embodiment, the Glen tank 13 is disposed behind the operation unit 14 provided in front of the right side of the fuselage frame 2.

The grain discharging device 15 includes a discharge conveyor (not shown) provided at the bottom of the Glen tank 13, a vertical discharge auger 17 that conveys the grain from the discharge conveyor upward, and a base end portion of the grain discharging apparatus 15 A horizontal discharge auger 18 communicated with the upper end of the vertical discharge auger 17, and the grains in the grain tank 13 are discharged to the outside through a discharge port 19 provided at the tip of the horizontal discharge auger 18. Configured to get.
In the present embodiment, the Glen tank 13 is pivotable laterally around the vertical discharge auger 17, thereby enabling driving equipment and hydraulic equipment disposed inside the fuselage. Maintainability is improved.

  The said waste disposal apparatus 11 can be equipped with a waste cutter and a spreading | diffusion conveyor so that the waste after threshing by the said threshing apparatus 100 may be cut | disconnected or it may be discharged | emitted outside without cut | disconnecting. It is configured.

Here, the threshing apparatus 100 will be described.
3 and 4 show a schematic cross-sectional view and a schematic rear view of the threshing apparatus 100, respectively.
The threshing device 100 is disposed under the threshing unit 110 for performing the threshing process on the cereals conveyed backward by the feed chain device 9, and is threshed by the threshing unit 110 and And a sorting unit 150 that sorts the grains from the fallen grains to be flowed down.

As shown in FIGS. 3 and 4, the threshing unit 110 includes a handling chamber 120 defined by a threshing machine frame 121, and a handling unit that is driven to rotate about a rotation axis along the longitudinal direction of the machine body in the handling chamber 120. A cylinder 130 and a cylinder receiving net 140 disposed below the cylinder 130 are provided.
The handle 130 has teeth 131 standing upright on the outer peripheral surface, and the teeth 131 can be used to perform threshing on the tips of the cereals conveyed through the feed chain device 9. It has become.
The handling cylinder receiving net 140 is configured to allow only the grains to be threshed by the handling cylinder 130 to have a predetermined outer diameter or less flow down to the sorting unit 150 below.
Further, the barrel receiving net 140 has a feeding port 141 in the vicinity of the rear end portion, and is configured such that a large-diameter grain to be removed falls from the feeding port 141 to the chaff sheave 220.

  The sorting unit 150 is oscillated by a drive mechanism (not shown) to perform a specific gravity sorting by swinging, and a sorting wind is sent to the shaking sorting mechanism 150A and the sorting wind is sent. And a wind sorting mechanism 150B for discharging outside the machine.

The swing sorting mechanism 150A includes a feed pan 210 disposed below the threshing unit 110 so as to receive the threshing flowing down from the threshing unit 110, and the threshing unit 110 and the feed pan 210. A chaff sheave 220 that receives the cereals and sorts the grains from the cereals is provided, and a Strollac 230 disposed behind the chaff sheave 220.
The feed pan 210, the chaff sheave 220, and the stroll rack 230 are disposed between a pair of swing side plates 151 (see FIG. 4) extending in the longitudinal direction of the machine body.

The feed pan 210 is configured to convey the cereal to be drained flowing down from the threshing unit 110 to the chaff sheave 220.
Specifically, the feed pan 210 is a plate body having an upper surface formed in a wave shape in order to convey the grains to be removed to the rear.

The chaff sheave 220 is configured so as to be able to sort the grains to be removed from the threshing unit 110 and the feed pan 210 by specific gravity.
Specifically, the chaff sheave 220 has a plurality of fins 221 extending in the body width direction between a pair of swing side plates, and having a plurality of fins 221 arranged in parallel in the longitudinal direction of the body with a space therebetween. The grains selected by specific gravity fall through the interval to the first basket 310 disposed below.
The plurality of fins 221 can swing integrally around their respective upper ends, and the opening width of the gap can be adjusted by changing the inclination angle by a drive mechanism (not shown). It is said that.

The Strolac 230 conveys large unnecessary items such as waste from the cereals sent from the chaff sheave 220 to the rear of the fuselage, and the small cereals containing grains are disposed below. It is comprised so that it can be dropped to the gutter 320.
Specifically, the Strollac 230 is a plurality of plate-like members 231 extending in the longitudinal direction of the machine body, and has a plurality of plate-like members 231 arranged in parallel in the machine body width direction with a space therebetween. A small to-be-depleted grain such as a grain falls to the second pot 320 through the interval.
Each of the plurality of plate-like members 231 has an upper surface formed in a wave shape, thereby promoting the rearward transfer of a large unnecessary object such as waste.

The first basket 310 is formed in a concave shape when viewed from the side by an inclined plate 315 on the front side extending between both side plates 122 (see FIG. 4) of the threshing machine frame and a first drifting plate 311 on the rear side. It is comprised so that the first grain which fell from the chaff sheave 220 can be collected in a concave part.
The first conveyor 330 is disposed in the concave portion of the first hook 310 along the body width direction.
The conveyance downstream end of the first conveyor 330 is connected to the cereal conveyor (not shown), and the grains concentrated in the concave part of the first basin 310 are the first conveyor 330 and the cereal. It is carried into the Glen tank 13 by a conveyor.

In the present embodiment, the swing sorting mechanism 150A includes a glenve sheave 240 disposed between the chaff sheave 220 and the first hook 310.
The grain sieve 240 functions as a second selection unit, and is formed of, for example, a net-like body.

The second rod 320 is connected to the rear of the first rod 310.
Specifically, the second basket 320 is formed in a concave shape in a side view by an inclined plate 325 on the front side extending between both side plates 122 (see FIG. 4) of the threshing machine frame and a second cereal plate 321 on the rear side. The second grain dropped from the Strollac 230 can be concentrated in the concave portion.
A second conveyor 340 is disposed in the concave portion of the second basket 320 along the body width direction.
The downstream end of the conveyor of the second conveyor 340 is connected to a second reduction conveyor (not shown), and the second conveyor 340 and the second reduction conveyor are integrated into the concave portion of the second basket 320. The second grain is returned on the feed pan 210.

The wind sorting mechanism 150B is configured to send a sorting wind to the swing sorting mechanism 150A, and the sorting wind can promote the grain sorting by the swing sorting mechanism 150A. Yes.
Specifically, the wind sorting mechanism 150B is provided with a red fan 410 that sends the sorting wind that flows upward from below to the swing sorting mechanism 150A.

The tang fan 410 is configured to be driven to rotate about a rotation axis along the body width direction in front of and below the chaff sheave 220.
Specifically, the tang fan 410 is disposed in a space defined by both side plates 122 (see FIG. 4) of the threshing machine frame and a tang fan case 420 having an opening at the rear. In addition, the sorting air can be sent upward.
More specifically, the tang fan case 420 has a tang fan case main body 421 surrounding the tang fan fan 420, a front end portion fluidly connected to the tang fan fan case main body 421, and a rear end portion opened obliquely rearward. And a hollow air passage case 422.
The side plate 122 of the threshing machine frame is provided with a suction port for sucking air into the tang fan fan 410.

  Further, in the present embodiment, as shown in FIG. 3, in addition to the above-described configuration, the first wind direction plate 710 is disposed on the upstream side in the flow direction of the sorting air from the swing sorting mechanism 150A. The first wind direction plate 710 that divides the sorted wind into an upper wind 400U and a lower wind 400L is provided.

The first wind direction plate 700 has an end on the upstream side in the sorting air flow direction located in the air passage case 422, and an end on the downstream side in the sorting air flow direction from the rear end of the air passage case 422. It is disposed so as to protrude rearward, and further has an upward convex shape in a side view.
By providing the first wind direction plate 710, the lower wind 400L can be efficiently directed to the first flown grain plate 311, and thereby, the vertical sort toward the chaff sheave 220 from the lower side to the upper side. Wind can flow.

That is, the lower wind 400L guided toward the first flow grain plate 311 by the first wind direction plate 710 is reflected by the first flow grain plate 311 and is directed substantially vertically downward toward the chaff sheave 220. Flows upward.
Therefore, by arranging the chaff sheave 220 in the forward direction and reducing the longitudinal length of the sorting unit 150 as much as possible, the sorting air can be efficiently supplied to the entire area of the chaff sheave 220. .

Preferably, as shown in FIG. 3, the upper wind 400U is placed above the first wind direction plate 710 between the first upper wind 400U1 flowing in the uppermost position, the first upper wind 400U1 and the lower wind 400L. A second wind direction plate 720 that divides the second upward wind 400U2 flowing through the second wind direction plate 720 can be provided.
Similarly to the first wind direction plate 710, the second wind direction plate 720 has an end on the upstream side in the sorting wind flow direction located in the air passage case 422 and an end on the downstream side in the sorting wind flow direction. It arrange | positions so that it may protrude back from the rear-end part of the air path case 422, and also is made upward convex shape in side view.

  By providing such a second wind direction plate 720, the vortex generated by the first wind direction plate 710 can be suppressed, and the sorted wind flow that flows from the substantially vertical lower side toward the upper side toward the chaff sheave 220 is more efficiently formed. it can.

In the present embodiment, as described above, the grain sheave 240 is provided between the chaff sheave 220 and the first hook 310.
As shown in FIG. 3, the grain sheave 240 is preferably disposed above the second wind direction plate 720 and below the upper wall of the air passage case 422 with respect to the vertical position.
With such a configuration, the sorting wind reflected by the first cereal plate 311 passes through the Glen sheave 240 and the chaff sheave 220 from substantially vertically downward to upward. Therefore, it is possible to more effectively perform grain selection in the grain sheave 240 and the chaff sheave 220.

In the present embodiment, the wind sorting mechanism 150B further includes a suction fan 450 that sucks the sorted wind from the tang fan 410 and discharges it to the outside 500.
Specifically, the suction fan 450 is configured to be driven to rotate about a rotation axis along the body width direction above the swing sorting mechanism 150A.
More specifically, the suction fan 450 is covered with a suction fan cover 460 having a front opening 461 facing the swing sorting mechanism 150A and a rear opening 462 communicated with the outside 500, and the sorting wind is The air is sucked through the front opening 461 and discharged from the rear opening 462.
Note that both sides of the suction fan 450 are closed by the side wall 122 of the threshing machine frame.

In the combine 1 </ b> A according to the present embodiment, as shown in FIG. 3, an opening 510 is provided between the suction fan 450 and the Strolack 230 to communicate the suction side and the discharge side of the suction fan 450. ing.
By providing the opening 510, it is possible to effectively prevent or reduce the occurrence of turbulent flow in the sorting air from the hot fan 410, and it passes through the swing sorting mechanism 150A upward and is discharged out of the machine. It is possible to effectively form a sorting wind flow.

By the way, when the opening 510 is provided, it is easy to form an effective flow of the sorting wind, but the grains scattered from the swing sorting mechanism 150A are discharged to the outside of the machine through the opening 510. It tends to occur.
In view of this point, the combine 1A according to the present embodiment includes a blocking member 550 that can be elastically deformed around the base end portion so as to block at least a part of the opening 510, as shown in FIG. In addition, the blocking member 550 causes the scattered grains to flow down to the second basket 320 to reduce loss.
Further, since the shielding member 550 is formed of a member that can be elastically deformed, the shielding member 550 can be used even when there is a large amount of unnecessary material such as waste that is transported out of the machine by the Strollac 230. Since the 550 is bent, clogging is also prevented.
Such a blocking member 550 can be formed of various materials as long as it exhibits the above-described action. For example, rubber is preferably used.

Preferably, the Strollac 230 is configured to have a recess 232 between a front end and a rear end, and the free end 551 of the blocking member 550 is the same as the recess 230 in the longitudinal direction of the airframe. The blocking member 550 can be disposed so as to be located behind the position or the recess 232.
By providing such a configuration, it is possible to more effectively prevent clogging of unnecessary objects conveyed rearward by the Strollac 230.

Further, in the combine 1A according to the present embodiment, as shown in FIG. 3, the sorter air from the Kara fan 410 is passed between the chaff sheave 220 and the Strollac 230 in the longitudinal direction of the machine body. A third wind direction plate 600 that guides to 450 is provided, thereby improving the connectivity of the air path from the Kara fan 410 to the suction fan 450 and improving the grain sorting performance.
Specifically, the third wind direction plate 600 is a plate-like body extending along the width direction of the machine body, and has a backward inclined posture in which the lower end portion is positioned forward and the upper end portion is positioned rearward. Yes.

In the present embodiment, a plurality of the third wind direction plates 600 are provided.
The plurality of third wind direction plates 600 (in the illustrated form, first to third wind direction plates 601 to 603) are juxtaposed in the longitudinal direction of the machine body with a gap provided between them.
In such a configuration, the gap between the fin 221R at the rearmost end of the chaff sheave 220 and the wind direction plate (the third wind direction plate 601 in the illustrated embodiment) located in the forefront and between adjacent wind direction plates. This air gap forms an air passage from the hot fan 410 to the suction fan 450.

By providing such a third wind direction plate 600, it is possible to clarify the flow of the sorting wind from the Kara fan 410 to the suction fan 450 and effectively prevent the occurrence of turbulence. It is possible to effectively prevent discharge through the opening 510.
Further, in the present embodiment, as shown in FIG. 3, the base end portion 552 of the shielding plate 550 is connected to the vicinity of the lower end portion of the front opening 461 of the fan case 460.
Therefore, the scattered grains from the swinging selection mechanism 150A can be effectively dropped onto the second basket 320 by the shielding plate 550.

Preferably, the lower end portion of the third wind direction plate 600 is closer to the first flow grain plate 311 that defines the air path of the selected wind from the hot air fan 410 than the lower end portion of the fins 21 in the chaff sheave 220. Is also located below.
As described above, by positioning the lower end portion of the third wind direction plate 600 downward, the flow of wind from the hot fan 410 to the suction fan 450 can be more effectively formed.

Further, in the embodiment in which a plurality of the third wind direction plates 600 are provided as in the present embodiment, more preferably, the third wind direction plate 311 guides the first wind direction plate 311 from the third wind direction plate 601 located at the foremost position. The upper end of the third wind direction plate 600M (in the form shown in the figure, the third wind direction plate 602, hereinafter referred to as the maximum air flow direction plate) is arranged so as to be positioned upward. Accordingly, it is possible to more effectively form a wind flow from the hot fan 410 to the suction fan 450.
More preferably, the wind direction plate (in the illustrated form, the third wind direction plate 603) located behind the maximum air volume wind direction plate 600M goes to the wind direction plate arranged behind the maximum air volume air direction plate 600M. Accordingly, the upper end portion is configured to be positioned below, and thereby, it is possible to efficiently transport unnecessary objects such as waste from the chaff sheave 220 to the stroller 230.

  Preferably, the plurality of third wind direction plates 600 are configured such that a lower end portion is positioned downward from a wind direction plate located on the front side to a wind direction plate located on the rear side. A wind flow from the fan 410 to the suction fan 450 can be more effectively formed.

FIG. 1 is a side view of a combine according to an embodiment of the present invention. FIG. 2 is a plan view of the combine shown in FIG. FIG. 3 is a schematic cross-sectional view of the threshing apparatus in the combine shown in FIGS. 1 and 2. FIG. 4 is a schematic rear view of the threshing apparatus shown in FIG. 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1A Combine 110 Threshing part 150 Sorting part 150A Oscillating sorting mechanism 220 Chaff sheave 230 Strollac 240 Glen sheave 400U1 First upper wind 400U2 Second upper wind 400L Lower wind 410 Kara fan 420 Kara fan case 421 Fan case body 422 Air channel case 450 Suction Fan 460 Suction fan cover 500 Outside 510 510 Opening 550 Blocking member 600 Third wind direction plate 710 First wind direction plate 720 Second wind direction plate

Claims (7)

An oscillating sorter mechanism having a chaff sheave for sorting the grains from the threshed grains threshed by the threshing unit;
The most saddle disposed below the chaff sheave, which is concaved in a side view by an inclined plate located on the front side and a first cereal plate located on the rear side,
A tang fan that is arranged in front of and below the chaff sheave and sends the sorting air to the swing sorting mechanism;
A fan case main body surrounding the fan, and a fan case having a front end fluidly connected to the fan case main body and an air passage case having a rear end opening toward the swing sorting mechanism;
A first wind direction plate disposed on the upstream side in the flow direction of the sorting wind from the swing sorting mechanism, the first wind direction plate for dividing the sorting wind into an upper wind and a lower wind;
The first wind direction plate has an end on the upstream side in the sorting air flow direction located in the air passage case, and an end on the downstream side in the sorting air flow direction protrudes rearward from the rear end of the air passage case. Further, the combine is characterized in that the first wind direction plate is convex upward in a side view so as to direct the downward wind toward the first flown plate. It further comprises a Glen sheave disposed between the chaff sheave and the first collar,
The combine according to claim 1, wherein the first wind direction plate is disposed below the grain sieve. A second wind direction plate that divides the upper wind into a first upper wind that flows in the uppermost direction and a second upper wind that flows between the first upper wind and the lower wind is above the first wind direction plate. Arranged,
The second wind direction plate has an end on the upstream side in the sorting air flow direction located in the air passage case, and an end on the downstream side in the sorting air flow direction protrudes rearward from the rear end of the air passage case. Further, the second wind direction plate is convex upward in a side view so as to direct the second upward wind toward the first drifting plate. Item 3. A combine according to item 1 or 2. A suction fan located above the swinging sorting mechanism, which sucks the sorting wind from the Kara fan and discharges it outside the machine;
A stroller that is disposed behind the chaff sheave and conveys unnecessary materials to a discharge passage behind the fuselage,
A third wind direction plate extending in the width direction of the airframe is provided between the chaff sheave and the Strollac in the longitudinal direction of the airframe so as to guide the selected air from the Kara fan to the suction fan. The combine according to any one of claims 1 to 3.   The combine according to claim 4, wherein a lower end portion of the third wind direction plate is positioned below a lower end portion of the chaff sheave so as to be close to the first cereal plate. A plurality of the third wind direction plates arranged side by side in the longitudinal direction of the fuselage with a gap between each other;
The plurality of third wind direction plates are arranged such that their upper end portions are positioned upward as they go from the wind direction plate located at the foremost position to the wind direction plate that guides the most selected wind guided by the first flow grain plate. The combine according to claim 5, which is configured. A plurality of the third wind direction plates arranged side by side in the longitudinal direction of the fuselage with a gap between each other;
7. The plurality of third wind direction plates are configured such that lower ends thereof are positioned downward from a wind direction plate located on the front side to a wind direction plate located on the rear side. Combine in any one of.

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