JP2009284801A - Chaff-discharging apparatus of combine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chaff-discharging apparatus of a combine having a chaff-discharging hood with a chaff-suction port opened on a transportation path and a chaff-discharging fan driven by an electric motor, and sucking and discharging chaffs of the transporting path of a feeder to transport reaped grain stalks to a thresher by the hood and fan, and facilitate the mounting of the electric motor while effectively applying the suction force of the chaff-discharging fan to the feeder. <P>SOLUTION: The chaff-discharging apparatus has the chaff-discharging fan 40 disposed in the chaff-suction port 33, and the electric motor 41 is supported on a wall 31b positioned opposite to the chaff-suction port 33 of the chaff-discharging hood 31. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention sucks dust on a transport path of a feeder that transports a harvested cereal meal to a threshing device by a dust hood having a dust suction opening opened in the transport path and a dust exhaust fan that is rotationally driven by an electric motor. The present invention relates to a dust remover for a combine harvester.

Conventionally, for example, Patent Document 1 discloses a dust removing device described above.
In the dust discharge device described in Patent Document 1, a dust-proof hood 25 (corresponding to a dust hood) attached to an upper surface and a left side surface of a feeder house 18 (corresponding to a feeder) and a dust suction fan 26 (corresponding to a dust exhaust fan). ) And an electric motor 30. (The symbols added to each member and each component are the symbols described in the publication.)

JP 2002-345320 A (paragraphs [0006]-[0008], FIGS. 6 and 7)

  In this kind of dust removal device, the suction force of the dust removal fan acts on the feeder more effectively as the location of the dust removal fan is closer to the feeder. As a result, when the dust exhaust fan is disposed at the dust suction port of the dust exhaust hood and the motor mounting member is disposed at the dust suction port and the motor mounting member supports the electric motor, the electric motor is disposed in the dust exhaust hood. Therefore, it is difficult to assemble the electric motor.

  An object of the present invention is to provide a combine dust removal device that can easily avoid the occurrence of the above-mentioned problem while effectively applying the suction force of a dust discharge fan to a feeder.

The first aspect of the present invention is a dust exhaust hood having a dust suction port that opens to the transport path, and a dust exhaust fan that is rotationally driven by an electric motor. In the combine dust remover that sucks and discharges by
The dust exhaust fan is disposed in the dust suction port, and the electric motor is supported on a wall portion facing the dust suction port of the dust hood.

  According to the configuration of the first aspect of the present invention, since the dust exhaust fan is disposed in the dust suction port, the dust exhaust fan can be brought close to the feeder as much as possible to effectively perform the suction action on the feeder. Since the electric motor is supported by the wall of the dust hood, the electric motor can be installed outside the dust passage of the dust hood or outside as much as possible so that the electric motor can be easily assembled. It becomes easy to arrange the mounting part outside or outside the dust hood.

  Therefore, it is possible to easily perform the assembly work from the assembly surface of the electric motor while being a dust discharger that can strongly suck the dust of the feeder.

  In the second aspect of the invention, the electric motor enters a motor mounting hole provided in the wall portion.

  According to the configuration of the second invention, in addition to exhibiting the operation of the configuration of the first invention, the mounting portion of the electric motor and a part or the whole of the main body are arranged outside the dust hood, and the electric motor is assembled. Can be easily done. Further, the heat generated in the electric motor can be easily discharged out of the dust hood.

  Therefore, the dust of the feeder can be strongly sucked, the assembly work can be performed more efficiently, and troubles due to overheating of the electric motor can be easily avoided.

The third aspect of the present invention includes a rotating shaft that interlocks the dust discharging fan and the electric motor in a state where the dust discharging fan and the main body of the electric motor are separated from each other, and a cylinder cover that houses the rotating shaft. ,
The cylinder cover has the same or substantially the same outer diameter as the boss portion to which the blades of the dust exhaust fan are connected.

  According to the configuration of the third invention, in addition to exhibiting the action of the first invention, the electric motor main body is separated from the dust exhaust fan, so that the electric motor mounting portion can be easily arranged outside the dust hood. The heat generated in the electric motor can be easily discharged out of the dust hood. In addition, the cylinder cover can prevent dust from adhering to the rotating shaft while preventing the dust flowing in the dust hood from being wrapped around the cylinder cover.

  Therefore, the dust of the feeder can be strongly sucked, the assembly work can be performed more efficiently, and troubles due to overheating of the electric motor can be more easily avoided. In addition, it is difficult for the dust to wrap around the rotating shaft and the cylinder cover, and it is easy to avoid the dust discharge failure and the drive failure caused by the wrapping dust.

  In this 4th invention, the said cylinder cover is provided with the seal | sticker cylinder part which extends from the cover main body of this cylinder cover, enters the inside of the said boss | hub part, and covers the circumference | surroundings of the said rotating shaft.

  According to the configuration of the fourth invention, in addition to exhibiting the action of the configuration of the third invention, even if dust enters the gap between the cover body of the cylinder cover and the boss portion of the dust exhaust fan, it can enter the rotating shaft. Is easily prevented by the seal tube.

  Accordingly, the dust of the feeder can be strongly sucked and the assembly work and the trouble of the electric motor can be easily avoided, but the dust around the rotating shaft and the cylinder cover is less likely to occur. Thus, it is possible to obtain a dust removal device that can more easily avoid a dust removal failure and a drive failure due to wrapping dust.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an overall left side view of a combine equipped with a dust removing device 30 according to an embodiment of the present invention. FIG. 2 is a right side view of the entire combine equipped with the dust removing device 30 according to the embodiment of the present invention. FIG. 3 is an overall plan view of the combine equipped with the dust removing device 30 according to the embodiment of the present invention. As shown in these figures, the combine is self-propelled by a pair of left and right crawler type traveling devices 1, 1 and has a driving unit 2 having a driving seat 2a and a canopy 2b for awning, The threshing device 4 provided on the rear side of the machine body frame 3 of the traveling machine, the grain bagging unit 10 equipped with the bagging tank 11 provided on the side of the threshing device 4, and the front of the threshing device 4 And a cutting part 20 having a feeder 21 connected to the part.

This combine harvests rice and wheat.
That is, the cutting unit 20 includes the feeder 21, a cutting frame 22 connected to the front end of the feeder 21, a divider 23 provided on both sides of the front end of the cutting frame 22, and the platform unit. A clipper-shaped trimming device 24 provided at the front end of 22a so as to be driven, and disposed near the rear of the trimming device 24 and on the upper surface side of the platform portion 22a so as to be driven and rotated on the trimming frame 22. The auger 25 and a rotary reel 27 supported by a pair of left and right support arms 26 and 26 extending forward from an upper part on the base end side of the cutting frame 22 are rotatably supported.

  The reaping unit 20 is configured such that the platform portion 22a of the reaping frame 22 is close to the ground when the feeder 21 is swung up and down with respect to the threshing device 4 around a lifting shaft core P facing the body by a hydraulic cylinder 28. Are moved up and down to a lowered working state and the raised non-working state in which the cutting frame 22 is raised from the ground. When the cutting unit 20 is in the descending work state and the traveling machine body is driven, the cutting unit 20 performs the cutting process of the planted cereal cocoon and the supply of the chopped cereal meal to the threshing device 4.

  That is, the cutting device is divided into a cutting target and a non-cutting target by the pair of left and right dividers 23, 23, and this cutting device is raked into the cutting device 24 by the rotary reel 27. Reap by 24. The harvested cereals are laterally fed forward of the feeder 21 along the platform portion 22a by the spiral plates 25a positioned at both ends of the auger 25. The harvested cereal that reaches the front of the feeder 21 is fed to the entrance 21a (see FIG. 4) of the feeder 21 located on the rear side of the auger 25 by scraping the transfer arm 25b provided in the middle of the auger 25 so as to be rotatable together. Send it in. The harvested cereals that have entered the feeder 21 are conveyed to the rear of the feeder 21 by a conveying path 21d located inside the feeder 21 and a conveyor 29 located in the conveying path 21d. The whole of the harvested cereal culm that reaches the rear end of the feeder 21 from the head to the tip is put into the handling room (not shown) of the threshing device 4 by the scraping action of the conveyor 29.

  The threshing device 4 performs threshing processing by a handling cylinder 4a that rotates the harvested cereal straw that has been put into the handling room.

  As shown in FIG. 2, the grain bagging unit 10 includes the bagging tank 11, and bags the upper end side of the grain bag mounted on the discharge cylinder 12 positioned at the lower part of the bagging tank 11. A bag support portion is provided which is supported by a support basket 13 and supports the lower end side of the grain bag by a bag receiving deck 14.

  The bagging tank 11 is supplied with the threshing grains from the sorting unit (not shown) of the threshing apparatus 4 and stored by the flocculation apparatus 15 (see FIG. 3), and the stored threshing grains are transferred from the discharge cylinder 12 to the grains. Drain into the bag.

  As shown in FIGS. 2 and 3, the grain bag filling unit 10 includes a pair of front and rear work auxiliary tools 16 and 16. Each work auxiliary tool 16 is positioned in a downward use posture protruding from the bag support portion laterally outward as shown by a solid line in FIGS. 2 and 3 and above the bagging tank 11 as shown by a two-dot chain line in FIG. It is supported so as to be able to swing and switch to the raised storage posture. Each work auxiliary tool 16 is positioned at an arrangement height at which the height from the upper surface of the bag receiving deck 14 becomes 1.0 to 1.1 m by switching to the lowering use posture. An operator who has boarded for bagging work can be used as a waist rest member.

  As shown in FIGS. 1 and 3, the mowing unit 20 includes the dust removing device 30 equipped with a dust removing hood 31 provided in the feeder 21.

  FIG. 4 is a longitudinal side view of the dust removing device 30. FIG. 5 is a front view of the dust exhaust device 30. FIG. 7 is a longitudinal front view of the dust removing device 30. FIG. 8 is a perspective view of the dust exhaust device 30. As shown in these drawings, the dust removal device 30 includes the dust hood 31, a dust exhaust fan 40 provided inside one end of the dust hood 31 in the lateral direction of the traveling machine body, An electric motor 41 provided above the dust exhaust fan 40 is provided.

  The dust hood 31 includes a lower wall portion 31a, an upper wall portion 31b, and a side wall portion 31c extending over the entire circumference of the lower wall portion 31a and the upper wall portion 31b. The dust hood 31 includes an air blowing guide 32 connected over one end side of a lower wall portion 31a and a side wall portion 31c. The dust hood 31 forms a dust suction port 33 toward the top plate 21b of the feeder 21 by the air blowing guide 32, and a dust discharge port toward the ground by a cylindrical body connected to the other end side of the lower wall portion 31a. 34 is formed, and a dust discharge path 35 communicating with the dust suction port 33 and the dust discharge port 34 is formed inside.

  The dust suction port 33 of the dust hood 31 is open to a transport path 21 d inside the feeder 21 through a communication port 50 provided in the top plate 21 b of the feeder 21. The communication port 50 of the feeder 21 is constituted by a through hole provided in the top plate 21b and a sheet metal member 52 (see FIG. 8) provided on the upper surface side of the top plate 21b.

  As shown in FIG. 7, the dust exhaust fan 40 is disposed in the dust suction port 33. The dust exhaust fan 40 is rotatably supported by a cylindrical cover 60 supported by the upper wall portion 31 b of the dust hood 31 via a rotary shaft 61, and the output of the electric motor 41 via the rotary shaft 61. It is linked to the shaft 41a.

  That is, the dust removal device 30 drives the electric motor 41 by turning on a switch 44 (see FIG. 3) disposed and provided on the lateral side of the front end side of the feeder 21 so as to be operated from the operation unit 2. Then, the dust exhaust fan 40 is rotated by the electric motor 41, and dust that has entered the transport path 21 d of the feeder 21 from the entrance 21 a and dust generated in the transport path 21 d are removed from the dust exhaust fan 40 and the dust hood 31. And suck out.

  That is, the suction force of the dust exhaust fan 40 is applied to the transport path 21 d of the feeder 21 via the communication port 50 of the feeder 21, and the dust on the transport path 21 d is connected to the communication port 50 of the feeder 21 and the dust suction port of the dust hood 31. 33 is sucked into one end side of the dust hood 31 from the dust 33 and the dust flowing into the dust hood 31 is blown by the dust fan 40 to flow along the dust path 35 to the dust outlet 34, and this dust outlet Drain from 34 to the aircraft downward. At this time, dust scattering is prevented by a rubber plate dustproof cover 36 suspended from the dust outlet 34.

  As shown in FIGS. 7 and 12, the dust exhaust fan 40 includes a boss portion 43 having a cylindrical portion 43 a made of resin and a disc portion 43 b continuously provided inside the cylindrical portion 43 a, and the cylindrical portion. A plurality of resin blades 42 that are radially connected to the outer peripheral side of 43a by integral molding with the cylindrical portion 43a are provided.

  As shown in FIGS. 7, 8, and 12, the electric motor 41 is supported by the upper wall portion 31 b by entering a motor mounting hole 38 provided in the upper wall portion 31 b of the dust hood 31. That is, the electric motor 41 includes a motor main body 41b that enters the motor mounting hole 38, and mounting portions 41c that are provided outside the upper wall portion 31b at three locations around the motor main body 41b. Provided, and is connected to the upper wall portion 31b at each mounting portion 41c.

As shown in FIGS. 7 and 12, the upper end side of the rotating shaft 61 is connected to the output shaft 41 a of the electric motor 41 via a connecting member 62 so as to be integrally rotatable, and the lower end side of the rotating shaft 61 is connected via a connecting member 63. It is connected to the disk part 43b of the dust exhaust fan 40 so as to be integrally rotatable.
In other words, the rotary shaft 61 positions the electric motor 41 in the vicinity of the outside of the dust discharge path 35 in a state where the dust fan 40 and the motor body 41 b are separated from each other and the dust fan 40 and the electric motor 41 are interlocked. I am letting.

  As shown in FIG. 12, the tube cover 60 includes a cover main body 60 a that houses the rotating shaft 61, and a bottom plate portion 64 of the cover main body 60 a that extends downward and has an end extending from the dust exhaust fan 40. The boss portion 43 includes a seal cylinder portion 60b that enters the periphery of the rotation shaft 61 inside the cylindrical portion 43a. The cover body 60a includes a cylindrical shaft support portion 65 that supports the rotating shaft 61 via a pair of upper and lower bearings connected to the inner surface side of the cover body 60a by a connecting plate 66 and the bottom plate portion 64. And is a member that supports the rotating shaft 61.

  In other words, the cylinder cover 60 covers the rotating shaft 61 by the cover body 60a and prevents the dust from being wound around the rotating shaft 61 while preventing the dust from winding around the cover body 60a due to the size of the outer diameter D2 of the cover body 60a. To prevent. Further, the seal cylinder portion 60b of the cylinder cover 60 acts as a seal between the cover main body 60a and the boss portion 43, and even if dust enters the gap between the cover main body 60a and the cylindrical portion 43a of the boss portion 43, this dust Is prevented from entering the rotating shaft 61.

  As shown in FIG. 7, the dust hood 31 is supported by the top plate 21 b of the feeder 21 through pivotal support means 51 provided at the lateral end opposite to the side where the dust outlet 34 is located. And swings up and down with respect to the feeder 21 around the dust hood opening / closing axis X of the traveling body of the pivot support means 51.

  5 and 7 show a state in which the dust hood 31 is lowered and closed. As shown in these drawings, when the dust hood 31 is lowered around the dust hood opening / closing axis X, the sealing material 37 attached to the lower end of the air blowing guide plate 32 is attached to the sheet metal member 52. It comes into contact and closes. Then, the dust suction port 33 of the dust hood 31 communicates with the transport path 21 d of the feeder 21. At this time, the space between the feeder 21 and the dust exhaust hood 31 is sealed by the sealing material 37 around the dust suction port 33. Further, by operating the lock means 70 (see FIG. 11) provided over the dust hood 31 and the top plate 21b of the feeder 21, the dust hood 31 can be fixed in the lowered closed state.

  FIG. 6 is a front view of the dust hood 31 in the ascending open state. As shown in this figure, when the dust hood 31 is lifted around the dust hood opening / closing axis X, the air blowing guide 32 is lifted from the top plate 21b of the feeder 21 and is opened. Then, the dust exhaust fan 40 is attached to the dust hood 31 and is lifted so that it is opened at the dust suction port 33 so that it can be easily inspected and cleaned. At this time, the support rod 57 supported on the upper surface side of the feeder 21 is moved up and down by the support bracket 56 formed by the sheet metal member 52, and the dust hood 31 moves the free end portion of the support rod 57 to the free end portion. It attaches to the locking hole 58 (refer FIG. 8) with which it is equipped. Then, the support rod 57 supports the dust hood 31 in a stretched manner and maintains the lifted open state.

  FIG. 10 is a plan view of the pivot means 51. As shown in FIG. 7, FIG. 7 and FIG. 8, the pivot means 51 includes a pivot bracket 53 constituted by a part of the sheet metal member 52, and a pair of front and rear pin holders 54 provided in the pivot bracket 53. , 54 and a pair of front and rear connecting pins 55 and 55 provided in the dust hood 31 so as to be rotatably fitted separately.

  FIG. 11 shows a side view structure of the locking means 70. As shown in FIG. 7 and FIG. 7, the locking means 70 is provided on the front and rear sides of the dust hood 31. Each lock means 70 fixes the dust hood 31 in the descending closed state by attaching a lock bolt 76 over the dust hood 31 and a fixing piece 75 provided on the top plate 21 b of the feeder 21. The lock means 70 releases the closed fixing of the dust hood 31 when the lock bolt 76 is removed from the fixing piece 75.

  As shown in FIGS. 1, 3, and 4, the dust removal device 30 includes a rubber plate cover 80 extending from the dust hood 31 toward the upper portion of the cutting frame 22. The cover 80 covers an upper portion of the portion where the support rod 57 and the front locking means 70 are located, and prevents dust from entering the portion.

[Another Example]
Instead of the dust removal device 30 of the above-described embodiment, a communication port is provided in the lateral plate 21c of the feeder 21, and the dust suction port 33 of the dust hood 31 communicates with the transport path 21d of the feeder 21 through this communication port. The present invention can also be applied to the case of the adopted dust removing device. In this case, the electric motor 41 is supported by the horizontal wall portion of the dust hood 31. Therefore, the upper wall portion 31 b and the lateral wall portion are collectively referred to as a wall portion 31 b that is positioned to face the dust suction port 33.

  Instead of the cylinder cover 60 of the above-described embodiment, a cylinder cover having the same outer diameter as the outer diameter of the boss portion 43 of the dust exhaust fan 40 may be adopted. Also in this case, the object of the present invention can be achieved.

Combine left side view Right side view of the entire combine Overall plan view of combine Vertical side view of dust collector Front view of dust collector Front view of the dust hood with the lift open Longitudinal front view of dust collector Perspective view of dust collector IX-IX cross-sectional arrow view of FIG. Top view of pivoting means XI-XI cross section arrow view of FIG. Cross section of tube cover and dust exhaust fan

Explanation of symbols

4 Threshing device 21 Feeder 21d Transport path 31 Dust hood 31b Dust hood wall 33 Dust inlet 38 Motor mounting hole 35 Dust path 40 Dust fan 41 Electric motor 43 Dust fan boss 60 Cylinder cover 60a Cylinder cover Main body 60b seal cylinder part 61 rotation axis D2 outer diameter of cylinder cover

Claims (4)

A combiner that sucks and discharges dust on a conveying path of a feeder that conveys the harvested cereal meal to a threshing device by a dust hood having a dust suction opening opened in the conveying path and a dust fan that is rotationally driven by an electric motor. A dust removal device,
The dust exhaust fan is disposed in the dust suction port,
A dust collector for a combine, wherein the electric motor is supported by a wall portion facing the dust suction port of the dust hood.   The combine dust removal device according to claim 1, wherein the electric motor enters a motor mounting hole provided in the wall portion. A rotating shaft that interlocks the dust discharging fan and the electric motor in a state where the dust discharging fan and the main body of the electric motor are separated from each other, and a cylinder cover that includes the rotating shaft.
The combine dust removal device according to claim 1 or 2, wherein the cylinder cover has an outer diameter that is the same as or substantially the same as a boss portion to which a blade of the dust discharge fan is connected.   4. The combine dust removing device according to claim 3, wherein a seal cylinder part is provided on the cylinder cover so as to extend from a cover main body of the cylinder cover and enter the inside of the boss part to cover the periphery of the rotating shaft.

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