JP2012044879A - Dust discharging device of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust discharging device of a combine harvester which can discharge dust from a feeder in a condition that it is easy to avoid tangling of straw bodies and leaves.SOLUTION: The dust discharging device is provided with a dust discharging hood 31 provided outside of a feeder case 20 in a condition to communicate with a dust intake 26 provided on a top plate 24 of the feeder case 20 of the feeder 11. In the dust discharging hood 31, an axial-flow dust intake/discharge rotary fan 32 is provided to be freely rotatable around an axis X parallel to the top plate 24 in a condition that a lower edge 32a of a rotation track is located near the periphery 27a of the dust intake 26.

Description

  TECHNICAL FIELD The present invention relates to a combine dust remover that acts on a feeder that supplies a threshing device with a harvested cereal meal from a harvester.

A dust suction hood provided on the top plate of the feeder case of the feeder, a dust hood provided outside the feeder case in a state communicating with the dust suction port, and a dust suction rotary fan provided rotatably inside the dust hood The dust generated in front of the feeder and inside the feeder case is sucked into the dust hood from the dust inlet by the action of the dust suction and rotation fan, and flows inside the dust hood. Conventionally, for example, those described in Patent Documents 1 and 2 have been described as a dust removal device configured to flow out from a discharge port of a hood to a predetermined discharge location.
The device described in Patent Document 1 includes a hood as a dust hood and an electric axial flow fan as a suction and discharge rotary fan. The one described in FIG. 9 of Patent Document 2 is provided with a top hood as a dust hood and a sirocco fan as a dust suction and rotation fan.

JP 2009-39024 A JP 2000-50721 A

  When the dust discharge device is configured by adopting the technique described in Patent Document 1, the suction / exhaust dust rotary fan is in close proximity to the dust suction port so that the entire suction / exhaust dust rotation fan covers the dust suction port. When the dust removal device is configured by adopting the technique described in FIG. 9 of Patent Document 2, the suction / exhaust dust rotary fan is close to the dust suction port so that almost half of the suction / exhaust dust rotation fan covers the dust suction port. become. As a result, when the cereals that are transported inside the feeder case pass through the part where the dust suction port is provided, if the slime or leaves may enter the dust hood from the dust suction port, The body and leaves were easily entangled. When a net is provided in the dust suction port so as to prevent slimming and leaves from entering the dust hood from the dust suction port, the slimming and leaves are easily entangled with the net.

  An object of the present invention is to provide a combine dust remover that can remove dust from a feeder in a state where it is easy to avoid troubles involving slimming and entanglement of leaves.

This 1st invention is the dust discharge device of the combine which acts on the feeder which supplies the threshing device to the threshing device.
A dust hood provided on the outside of the feeder case in a state communicating with a dust suction port provided on the top plate portion of the feeder case of the feeder,
Inside the dust hood, an axial-flow type dust suction rotary fan can be rotated around an axis parallel to the top plate with the lower end of the rotation locus positioned at or near the periphery of the dust suction port. Is provided.

  According to the configuration of the first aspect of the invention, the suction / exhaust dust rotary fan is in a state in which the dust suction / exhaust rotary fan stands with respect to the top plate portion and the entire suction / exhaust dust rotary fan is located near the outside of the dust inlet. Is installed inside the dust hood, and even if the slime and leaves of the cereals transferred by the feeder enter the dust hood from the dust inlet, it is difficult to touch the dust suction rotary fan. The rotating fan can exert a suction force on the dust inlet. Since the lower end portion of the rotation locus of the suction / exhaust dust rotation fan is located at or near the periphery of the dust suction port, the suction force of the suction / exhaust dust rotation fan reaching the dust suction port need not be reduced. Thereby, it is possible to make it difficult to touch the slimming body and leaves to the dust suction rotary fan without providing a net for preventing the slimming and leaves from entering the dust hood from the dust suction port.

  Therefore, while the harvested culm acts on the feeder that is transported in the state of the long culm and can effectively suck and discharge dust, defective dust discharge due to tangling of the slime and leaves occurs. It is possible to obtain a high-quality dust exhaust device that is difficult to perform.

  In the second aspect of the present invention, the suction / exhaust dust rotary fan is disposed in the vicinity of the lateral end of the top plate portion.

  When the distance from the suction / exhaust dust rotation fan to the horizontal edge of the top plate becomes large, the dust flowing from the suction / exhaust dust rotation fan toward the lateral outer side of the feeder falls on the top plate part way to the lateral outer side. It becomes easy to do. According to the configuration of the second invention, the distance from the suction / exhaust dust rotary fan to the lateral outer side of the feeder is reduced, and the dust flowing from the suction / exhaust dust rotary fan toward the lateral outer side of the feeder falls on the top plate portion. It can be difficult.

  Therefore, it is possible to provide an excellent discharge performance so that it is difficult for the dust to be discharged from the dust hood to fall and stay on the top plate portion.

  In the third aspect of the invention, the motor for driving the suction / exhaust dust rotary fan is arranged on the upper side of the dust flow direction with respect to the suction / exhaust dust rotary fan and supported by the support portion of the dust hood.

  According to the configuration of the third aspect of the invention, the dust sucked into the dust hood from the feeder case through the dust suction port passes through the suction and suction rotary fan from the side where the motor is located to the side opposite to the side where the motor is located. It is possible to make it difficult for the dust to flow into the portion where the motor is accommodated.

  Therefore, the sealing means for preventing the inflow of dust into the motor can be obtained with a simple structure and inexpensively.

It is a side view which shows the whole combine. It is a top view which shows the whole combine. It is a vertical front view which shows a feeder and a dust removal apparatus. It is a top view which shows a dust removal apparatus. It is a cross-sectional top view which shows a dust removal apparatus. FIG. 6 is a sectional view taken along the line VI-VI in FIG. 3. It is a vertical front view which shows the arrangement | positioning part of the suction / exhaust dust rotation fan in a dust removal apparatus. It is a vertical front view which shows the arrangement | positioning part of the suction / exhaust dust rotation fan in the dust exhaust apparatus which shows a 1st another Example. It is a vertical front view which shows the arrangement | positioning part of the suction / exhaust dust rotation fan in the dust exhaust apparatus which shows a 2nd another Example. It is a top view of the dust removal apparatus which shows a 3rd another Example. It is a top view of the dust removal apparatus which shows a 4th another Example. It is a top view of the dust removal apparatus which shows a 5th another Example. It is a top view of the dust removal apparatus which shows a 6th another Example. It is the schematic which shows the drive structure of the suction / exhaust dust rotation fan in the dust exhaust apparatus which shows a 7th another Example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing the entire combine according to the embodiment of the present invention. FIG. 2 is a plan view showing the entire combine according to the embodiment of the present invention. As shown in these drawings, the combine according to the embodiment of the present invention is configured to travel by a pair of left and right crawler traveling devices 1 and 1, and is provided on the lateral end side of the front portion of the traveling machine body. Traveling machine body provided with a part 2 and a driving part 3, a threshing device 5 provided at the rear part of the machine body frame 4 of this traveling machine body, and a grain tank provided at the rear part of the machine body frame 4 behind the operation part 2 6 and a reaping portion 10 having a feeder 11 connected to the front portion of the threshing device 5.

This combine harvests rice and wheat.
That is, in the cutting unit 10, the feeder 11 is pivoted up and down with respect to the threshing device 5 by the hydraulic cylinder 12, so that the cutting unit frame 13 is lowered to the ground and the cutting unit frame 13 is moved downward. Ascend and descend to the ascending work state that rises high from the ground. When the mowing unit 10 is lowered to the lowering operation state and the traveling machine body is run, the mowing unit 10 extends from the base of the mowing unit frame 13 so as to be swingable up and down so that it can freely move up and down. 14, the planted culm is squeezed and harvested by the reaper device 16 while being scraped up against the clipper-shaped reaper device 16 provided on the front end side of the bottom part of the reaper part frame 13 by the rotary reel 15 that is supported rotatably by the sway 14. Whole cereals are transferred to the front part of the feeder 11 by the spiral feed plate 17a of the rotary auger 17 provided in the inside of the cutting part frame 13, and reach the front part of the feeder 11 from the root to the tip of the chopped cereals. Is fed to the feeder 11 by a scraping arm 18 provided on the rotary auger 17 and supplied to the threshing device 5 by the feeder 11.

  The threshing device 5 introduces the whole of the supplied harvested cereal culm from the stock source to the tip of the cereal into a handling room (not shown) and performs threshing processing. In the grain tank 6, the threshing grains sent out by the threshing device 5 are sent and stored by the supply device 7, and the stored threshing grains are discharged by a discharge auger 8 formed of a screw conveyor.

  As shown in FIGS. 1 and 3, the feeder 11 includes a cylindrical feeder case 20 having a rectangular cross section extending from the rear wall portion of the reaping portion frame 13 to the front wall portion of the threshing device 5, and the inside of the feeder case 20. A pair of endless rotating chains 21, 21 arranged in a lateral direction on the feeder so as to be freely rotatable, and a pair of endless rotating chains 21, 21 arranged at a plurality of locations in the longitudinal direction of the endless rotating chain 21. And a conveying body 22 attached over the entire area.

  Accordingly, the feeder 11 passes the cereal cereals fed into the feeder case 20 from the cereal feed outlet (not shown) located on the rear wall portion of the reaping part frame 13 by the scraping arm 18 inside the feeder case 20. A grain input port located on the front wall portion of the threshing device 5 by being transported by the transport body 22 transferred by the pair of endless rotating chains 21 and 21 along the inner surface of the bottom plate portion 23 of the feeder case 20. (Not shown).

  As shown in FIGS. 1 and 2, the feeder 11 includes a dust removal device 30 disposed at the conveyance start end of the feeder case 20, and removes dust such as dust that has entered the feeder case 20 together with the harvested culm. The apparatus 30 discharges to the outside of the feeder case 20, and supplies the threshing culm with the dust removed to the threshing device 5. In addition, the dust removal device 30 sucks dust generated in front of the feeder 11 through the feeder case 20 and discharges the dust to a place away from the operation unit 2.

The dust removal device 30 will be described.
FIG. 3 is a longitudinal front view showing the dust exhaust device 30. FIG. 4 is a plan view showing the dust discharger. As shown in these drawings, the dust exhaust device 30 includes a dust exhaust hood 31 provided on the outside of the feeder case 20 and an axial flow type dust intake / exhaust rotary fan 32 (hereinafter referred to as a rotation) provided inside the dust exhaust hood 31. Abbreviated as fan 32).

  The dust hood 31 spans the suction hood portion 33 located on the outer surface side of the top plate portion 24 of the feeder case 20, the lateral side portion of the suction hood portion 33, and the outer surface side of the lateral plate portion 25 of the feeder case 20. And a discharge hood portion 34 that is positioned at the bottom of the suction hood portion 33, and a top plate around a dust suction port 26 provided in the top plate portion 24 of the feeder case 20 by a mounting flange 33 t provided at the lower end portion of the suction hood portion 33. It is connected to the part 24. As shown in FIG. 6, the vertical cross-sectional shape in the direction along the axis X of the rotary fan 32 of the upper portion 33 </ b> U of the suction hood portion 33 that accommodates the upper half of the rotary fan 32 becomes a semicircular shape. The longitudinal cross-sectional shape in the direction along the axial center X of the rotary fan 32 of the lower part 33D of the suction hood part 33 which accommodates half is a rectangle. The dust hood 31 communicates with the dust suction port 26 through a rectangular communication hole 33 a provided in the suction hood portion 33, and the dust flow from the dust suction port 26 to the discharge port 35 formed at the lower end of the discharge hood portion 34. Forming a road. The suction hood portion 33 and the discharge hood portion 34 are made of a resin material molded into a predetermined shape. The suction hood portion 33 and the discharge hood portion 34 are connected to a connection flange 33 f integrally formed at the lateral end portion of the suction hood portion 33 and a connection flange 34 f integrally formed at the lateral end portion on the upper end side of the discharge hood portion 34. They are connected by screw connection.

  As shown in FIG. 6, the upper end side portion 31 </ b> U in the direction along the axis X of the rotary fan 32 of the dust hood 31 is formed in an arc shape along the outer periphery of the rotary fan 32, and the upper end of the dust hood 31 is formed. A lower end side portion 31D located between the side portion 31U and the top plate portion 24 of the feeder case 20 is formed in a linear shape that faces the feeder up and down. A suction hood portion is provided with a resin seal wall plate 41 that fills the gap between the outer peripheral edge of the rotary fan 32 on both sides of the lower portion of the rotary fan 32 and the lower end side portion 31D of the dust exhaust hood 31 and enhances the dust exhaust performance. It is provided inside the dust hood 31 in a state of being integrally formed with 33. The upper end 41 a of the seal wall plate 41 is located at a placement height that is slightly lower than the axis X of the rotary fan 32. The upper portion 33U of the suction hood portion 33 and the seal wall plate 41 function as a fan shroud of the rotary fan 32.

  As shown in FIGS. 5, 6, and 7, the rotary fan 32 has a lower end 32 a of the rotation locus of the rotary fan 32 at the lateral end of the peripheral edge 27 of the dust suction port 26 opposite to the operation part side of the dust suction port 26. It arrange | positions so that it may be located in the vicinity of the part 27a located in and the horizontal end vicinity of the top-plate part 24 of the feeder case 20. FIG. The rotary support shaft 32b of the rotary fan 32 is supported by an output shaft 38a of an electric motor 38 disposed so as to be positioned on the upper side of the dust flow direction with respect to the rotary fan 32. The motor 38 is supported by the suction hood. It is detachably attached to a flange-shaped support portion 36 a located at the end of a cylindrical stay 36 provided inside the portion 33 by a connecting screw, and the rotary fan 32 rotates to the stay 36 via a motor 38. The motor 38 is rotationally driven around an axis X that is supported freely and that is the axis of the rotation support shaft 32 b and is parallel to the top plate portion 24 of the feeder case 20. The rotary fan 32 is provided with a seal cover 40 for preventing dust from flowing into the rotary support shaft 32b and the motor 32 in a state of being attached to the base of the rotary support shaft 32b so as to be integrally rotatable.

  As shown in FIG. 7, the stay 36 that supports the motor 38 is integrally formed with the lateral side plate portion 37 of the suction hood portion 33 so as to extend from the lateral side plate portion 37 of the suction hood portion 33 toward the rotary fan 32. A working opening 42 used for attaching / detaching the motor 38 is formed in the lateral side plate portion 37 of the suction hood portion 33. A wiring groove 43 is formed in the stay 36 at the same time as the stay 36 is formed, and an electric wire 44 for driving the motor 38 is drawn from the motor 38 to the outside of the suction hood portion 33 through the wiring groove 43. A motor cover 45 that prevents dust from entering the motor 38 from outside the suction hood 33 is provided inside the stay 36. The motor cover 45 is made of sponge, and is packed in the hole of the stay 36 through the work opening 42 and attached. A part of the peripheral edge of the motor cover 45 enters the inside of the wiring groove 43, and the electric wire 44 is pushed into the wiring groove 43 and fixed. The lateral side plate portion 37 of the suction hood portion 33 extends from the lower end 37p located at a lower arrangement height than the arrangement height of the stay 36 to the upper end, and inclines in a state approaching the rotary fan 32 toward the upper end. A connecting plate portion 33r for connecting the mounting flange 33t and the lateral plate portion 37 is provided across the lower end 37p of the lateral plate portion 37 and the mounting flange 33t. The connecting plate portion 33r is located slightly above the dust suction port 26, and forms a dust flow path from the end of the dust suction port 26 toward the lower end side portion 37d of the side plate portion 37 below the connecting plate portion 33r. Yes.

  Accordingly, the dust removal device 30 is driven around the axis X by the motor 38 to rotate around the axis X to cause the rotary fan 32 to exhibit suction and blowing action, and is generated in front of the feeder 11 and inside the feeder case 20. Dust flows from the dust suction port 26 into the suction hood portion 33 through the communication hole 33a, flows from the periphery of the stay 36 to the feeder sideways, passes through the rotary fan 32, and flows into the upper end portion of the discharge hood portion 34. The operation unit 3 is positioned with respect to the feeder 11 from the discharge port 35 by causing the flow to be changed to the downward flow of the feeder by the guide of the inclined inner surface 34b of the hood plate portion 34a forming the upper end portion of the discharge hood portion 34. The sheet is discharged toward the lower side of the feeder 11 on the side opposite to the side. Dust that has flowed from the dust suction port 6 to the periphery of the stay 36 of the suction hood 33 receives a flow guide due to the inclination of the side plate 37 and smoothly changes the flow direction toward the rotary fan 32 to flow. In particular, the dust sucked from the end of the dust suction port 6 opposite to the side where the rotary fan 32 is located flows into the suction hood portion 33 through the dust flow path below the connecting plate portion 33r, When flowing into the suction hood part 33, the flow is guided by the inclination of the lower end side part 37 d of the lateral side plate part 37, and the direction is smoothly changed to the direction of flow toward the rotary fan 32 to flow.

  In the dust exhaust device 30, the lower end portion 32 a of the rotation trajectory of the rotary fan 32 is positioned in the vicinity of the lateral end 24 a of the top plate portion 24 of the feeder case 20, and the rotational fan 32 to the lateral end 24 a of the top plate portion 24. Due to the short distance, the dust that has passed through the rotary fan 32 is dropped toward the discharge port 35 of the discharge hood portion 34 without dropping onto the top surface of the top plate portion 24.

[First alternative embodiment]
FIG. 8 is a longitudinal sectional front view showing an arrangement portion of the suction / exhaust dust rotary fan 32 in the dust exhaust device 30 showing the first alternative embodiment. As shown in this figure, the dust exhaust device 30 showing the first alternative embodiment has a different configuration from the dust exhaust device 30 of the above-described embodiment in that the dust exhaust hood 31 and the motor 38 are supported. In other respects, the configuration is the same as the dust exhaust device 30 of the above-described embodiment.

  In the dust exhaust device 30 according to the first alternative embodiment, the dust hood 31 includes a suction hood portion 33 made of sheet metal provided on the outer surface side of the top plate portion 24 of the feeder case 20, and a side of the suction hood portion 33. A resin discharge hood portion 34 provided across the side portion and the outer surface side of the lateral plate portion 25 of the feeder case 20 is provided. The suction hood portion 33 and the discharge hood portion 34 are connected by connecting the end portions with a connecting bolt.

  The side plate portion 37 of the suction hood portion 33 includes a substantially vertical upper plate portion 37a to which the stay 36 is coupled, and a tilted lower plate positioned between the upper plate portion 37a and the top plate portion 24 of the feeder case 20. Part 37b. The lower plate portion 37 b includes an inclined inner surface 37 c that decreases in distance from the rotary fan 32 as it approaches the stay 36. The inclined inner surface 37c flows and guides the dust flowing into the suction hood portion 33 from the dust suction port 26. As a result, when the dust flowing into the feeder upward from the dust suction port 26 and entering the suction hood portion 33 reaches the periphery of the stay 36, the direction is smoothly changed to the lateral flow direction of the feeder, and in the vicinity of the stay 36. Dust is less likely to stall. The dust hood 31 includes an inclined guide 31 a that guides the dust that has fallen from the lower end of the rotary fan 32 toward the discharge hood 34.

  In the dust removal apparatus 30 showing the first alternative embodiment, the stay 36 that supports the motor 38 is constituted by a sheet metal formed in a cylindrical shape, and around the work opening 42 provided in the lateral wall portion 37 of the suction hood portion 33. It is connected to the lateral wall portion 37 by a connecting bolt.

[Second alternative embodiment]
FIG. 9 is a longitudinal sectional front view showing an arrangement portion of the suction / exhaust dust rotary fan 32 in the dust exhaust device 30 showing the second alternative embodiment. As shown in this figure, in the dust discharger 30 showing the second alternative embodiment, the dust discharge of the above-described embodiment in terms of the dust hood 31 and the point where the motor 38 and the suction / exhaust dust rotary fan 32 are supported. It has a configuration different from that of the device 30, and has the same configuration as the dust exhaust device 30 of the above-described embodiment in other points.

  In the dust exhaust device 30 showing the second alternative embodiment, the dust exhaust hood 31 has the same configuration as the feeder case 20 in the dust exhaust device 30 of the first alternative embodiment.

  In the dust removing device 30 showing the second alternative embodiment, the motor 38 is detachably connected to the horizontal wall portion 37 with a connecting bolt in a state where the motor 38 is fitted in the motor mounting hole provided in the horizontal wall portion 37 of the suction hood portion 33. It is.

  In the dust exhaust device 30 according to the second alternative embodiment, the rotation support shaft 32 b of the dust suction / exhaust rotary fan 32 is supported by the support portion 36 a provided at the end of the stay 36 and the output shaft 38 a of the motor 38. . The rotation support shaft 32b is connected to the output shaft 38a of the motor 38 via a connector 39 so as to be integrally rotatable.

[Third alternative embodiment]
FIG. 10 is a plan view of a dust removal device 30 showing a third alternative embodiment. In the dust exhaust device 30 according to the third alternative embodiment, the rotary fan 32 is positioned such that the lower end portion of the rotation locus of the rotary fan 32 is located along the rear end of the dust suction port 26 in the peripheral edge 27 of the dust suction port 26. It is provided in a state of being arranged so as to be located immediately above the portion.

[Fourth Embodiment]
FIG. 11 is a plan view of a dust removal device 30 showing a fourth alternative embodiment. In the dust exhaust device 30 according to the fourth alternative embodiment, the rotating fan 32 is positioned such that the lower end portion of the rotation locus of the rotating fan 32 is positioned along the front end of the dust suction port 26 in the peripheral edge 27 of the dust suction port 26. It is provided in a state of being arranged so as to be located immediately above the portion.

[Fifth alternative embodiment]
FIG. 12 is a plan view of a dust removal device 30 showing a fifth alternative embodiment. In the dust exhaust device 30 showing the fifth alternative embodiment, the rotary fan 32 is positioned at the lower end of the rotation locus of the rotary fan 32 on the opposite side of the peripheral edge 27 of the dust suction port 26 from the operating part side of the dust suction port 26. It is provided in a state of being arranged so as to be located immediately above the portion located at the corner on the front side on the lateral end side.

[Sixth alternative embodiment]
FIG. 13 is a plan view of a dust removal device 30 showing a sixth alternative embodiment. In the dust exhaust device 30 according to the sixth alternative embodiment, the rotary fan 32 is positioned such that the lower end portion of the rotation locus of the rotary fan 32 is located on the opposite side of the peripheral edge 27 of the dust suction port 26 from the operating portion side of the dust suction port 26. It is provided in a state of being arranged so as to be located immediately above the portion located at the corner on the rear side on the lateral end side.

[Seventh Embodiment]
FIG. 14 is a schematic diagram showing a drive structure of the suction / exhaust dust rotary fan 32 in the dust exhaust device 30 showing a seventh alternative embodiment. In the dust discharger 30 showing the seventh alternative embodiment, the dust suction rotary fan 32 is driven by the driving force transmitted from the driving unit 3 to the feeder driving shaft 50 as the cutting unit driving shaft via the transmission belt 50a. In addition, a drive structure of the suction / exhaust dust rotary fan 32 is configured.

That is, the drive structure of the suction / exhaust dust rotary fan 32 includes a tension sprocket 53 that engages with an endless rotating chain 52 that transmits power from the feeder driving shaft 50 to the reaper driving shaft 51, and tensions the endless rotating chain 52; A transmission pulley 54 provided on the rotary shaft that supports the tension sprocket 53 so as to be rotatable integrally therewith, and a rotary pulley 32 b of the rotary fan 32 provided so as to be integrally rotatable while being linked to the transmission pulley 54 by a transmission belt 55. A fan drive pulley 56 is provided.
That is, the driving force transmitted from the feeder drive shaft 50 to the reaper drive shaft 51 is extracted by the tension sprocket 53 and transmitted to the transmission pulley 54, and the transmission pulley 54 is accelerated by the transmission belt 55 and the fan drive pulley 56. The dust suction rotary fan 32 is driven by transmitting the rotation to the rotation support shaft 32b.

[Another Example]
(1) Although the example which provided the rectangular dust suction opening 26 in the top-plate part 24 of the feeder case 20 was shown in the above-mentioned Example, various shapes other than a rectangle, for example, circular and elliptical dust suction openings 26 are provided. May be implemented.
(2) In the above-described embodiment, the rotary fan 32 is positioned immediately above the lateral end 24a of the top plate portion 24, that is, the rotary fan 32 protrudes laterally outward from the lateral end 24a of the top plate portion 24. Or you may arrange | position in the state located in the directly upper side of the peripheral edge 27 (part 27a) of the dust inlet 26, ie, the state where the rotation fan 32 entered the inside of the dust inlet 26 rather than the peripheral edge 27 (part 27a).

  In the present invention, the threshing grain from the threshing device 5 is stored in the grain tank 6 and is taken out from the grain tank 6 by the discharge auger 8. The threshing grains can be stored in a bagging tank, and can also be used in a dust discharging device equipped in a bagging type combine that is taken out from the bagging tank into a grain bag.

DESCRIPTION OF SYMBOLS 5 Threshing apparatus 11 Feeder 16 Mowing apparatus 20 Feeder case 24 Top plate part 26 Dust collection port 27a Periphery 31 Dust collection hood 32 Dust collection rotation fan 32a Rotation trace lower end part 36b, 37 Dust collection hood support part 38 Motor X axis

Claims (3)

A dust collector for a combine that acts on a feeder that supplies the threshing device with the harvested cereal from the reaping device,
A dust hood provided on the outside of the feeder case in a state communicating with a dust suction port provided on the top plate portion of the feeder case of the feeder,
Inside the dust hood, an axial-flow type dust suction rotary fan can be rotated around an axis parallel to the top plate with the lower end of the rotation locus positioned at or near the periphery of the dust suction port. Combine dust remover provided in the   The combine dust exhaust device according to claim 1, wherein the dust suction rotary fan is disposed in the vicinity of a lateral end of the top plate portion.   The exhaust of the combine according to claim 1 or 2, wherein a motor for driving the suction / exhaust dust rotation fan is disposed on the upper side of the dust flow direction with respect to the suction / exhaust dust rotation fan and supported by a support portion of the dust hood. Dust equipment.

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