JP2009011193A - Grain recovery part structure of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grain recovery part structure of a combine harvester, which carries out unloader operation, without inhibiting the compaction of a machine body or deteriorating operability, on the side of the operation seat inside the machine body. <P>SOLUTION: In the grain recovery part structure of a combine harvester which is equipped with a grain tank 22, with an unloader at the side of a threshing apparatus 4 and an operation part 7 ahead of the grain tank 22, the operation part 49 of the unloader 23 is installed at the threshing apparatus side from the side face of the grain tank 22 inside the machine body, and the threshing apparatus 4 is set below the operation part 49. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a combine grain recovery unit structure in which a grain tank with an unloader is provided on the side of a threshing apparatus and an operation unit is provided in front of the grain tank.

The unloader equipped in the grain tank is a vertical feed auger that lifts the grain carried out from the bottom of the grain tank, and an up-and-down swivel that transports the fed grain horizontally and discharges it from the tip. What is comprised with a transverse feed auger is used abundantly, and it is common for the operator who boarded the operation part to change the attitude | position of the said transverse feed auger, and to start and stop an unloader. Conventionally, as disclosed in, for example, Patent Document 1 or Patent Document 2, the operation unit of the unloader is disposed behind the driver seat and on the inner side of the fuselage.
Japanese Patent Laid-Open No. 10-304754 (FIG. 7) Japanese Patent Laying-Open No. 2006-238897 (FIG. 2)

  When the operation part of the unloader is deployed behind the driver's seat, the front end position of the driver part will be located in front, and the cutting body protrudes ahead of the driver part, so that the overall length of the aircraft becomes larger. This is disadvantageous in achieving compactness in the front-rear direction. When the unloader operation part is deployed inside the fuselage behind the driver's seat, the front and rear length of the side panel placed inside the fuselage inside the driver's seat is restricted, and various operating tools and monitors equipped on the side panel are packed together. This tends to reduce the operability of the operating tool.

  The present invention has been made by paying attention to such points, and without uncomfortable downsizing of the fuselage or deteriorating operability on the lateral side of the driver seat inside the fuselage, The main purpose is to obtain a combine harvester structure that can be operated.

The 1st invention is the grain recovery part structure of the combine which arranged the grain tank with an unloader on the side of the threshing device, and arranged the operation part ahead of the grain tank.
The operation part of the unloader is installed at a position higher than the threshing device in the body from the grain tank, and the threshing device is inserted below the operation part.

  According to the above configuration, the operation part of the unloader will be located in the upper rear part of the operation part, and the operation part is placed close enough to the grain tank, so that the front end position of the operation part can be located behind the fuselage. In addition, by positioning the front end position of the cutting part protruding forward of the driving part at the rear of the machine body, it is effective in achieving downsizing of the machine body in the front-rear direction.

  The unloader's operation part is located at the upper rear of the operation part, so the side panel to be deployed inside the airframe of the operation part can be provided long in the front and back, and various operation tools, operation switches, and monitors are overcrowded. It becomes easy to arrange in a side panel in the state which does not become.

  By placing the threshing device in the lower part of the unloader operation section, the grain tank and the threshing device can be installed sufficiently close to each other in the horizontal direction, and without sacrificing the lateral width of the grain tank. The lateral width can be reduced, which is effective in making the aircraft compact in the left-right direction.

  The operation unit located at the upper rear part of the operation unit is easy to see from the operator and can easily perform the Ander operation in the grain carrying-out operation.

  Therefore, according to the first aspect of the invention, it is effective in reducing the size of the airframe in the front-rear direction and the left-right direction, and various operations and andor operation on the side of the inside of the airframe of the driver seat can be performed lightly and satisfactorily. .

According to a second invention, in the first invention,
The said operation part is supported on the upper part of the threshing apparatus stood up from the threshing apparatus.

  According to the above configuration, the operation unit can be installed at a desired high position using a rugged and tall cerealing device without requiring a dedicated support column or support frame, and the support structure of the operation unit is simplified. can do.

According to a third invention, in the first or second invention,
A vertical feed auger that lifts the grain unloaded from the bottom of the grain tank; and a undulating and swivelable lateral feed auger that horizontally conveys the pumped grain and discharges it from the tip. An auger receiver configured to receive and support the transverse feed auger in a predetermined posture of the machine body is provided at an upper part of the cerealing device.

  According to the above configuration, the auger receiver can be installed at a desired high position using a sturdy and tall cerealing device without requiring a dedicated support column or support frame, and the support structure of the auger receiver is simplified. Effective.

  The whole combine is shown by FIGS. In this combine, a cutting unit 3 is connected to a front part of a traveling machine body 2 having a pair of left and right crawler traveling devices 1 so as to be able to swing up and down, and a threshing device 4 and a grain recovery unit 5 are connected to the traveling machine body 2. It is mounted in parallel on the left and right, and has a structure in which a driving unit 7 including a driving unit 6 is provided in front of the grain collection unit 5.

  The mowing unit 3 includes a pair of right and left pulling devices 8, which perform two reapings during normal rotating mowing work, and are set to a reaping width that allows three reapings as necessary. The stepping width of the crawler traveling device 1 is substantially matched with the cutting width, so that the entire surface can be cut.

  The driving section 6 is configured by accommodating and deploying an engine 10 in a bonnet 9 formed in a box shape, and a driver seat 11 is mounted on the bonnet 9. The bonnet 9 is configured such that the engine room can be largely exposed by swinging and opening laterally outward with the fulcrum a at the outer lower end as a center.

  The driver 7 is configured such that a control tower 12 and an arch-shaped fixed handle 13 are erected in front of the driver seat 11, and a side panel 14 is provided inside the fuselage of the driver seat 11. A control lever 15 is erected on the control tower 12 so as to be able to perform a cross swing operation. By operating the control lever 15 to swing left and right, the aircraft is steered in the lever tilting direction, and the control lever 15 is moved forward and backward. The mowing unit 3 is configured to descend and rise by a swing operation. The side panel 14 is provided with electrical equipment 18 such as a shift lever 16, an accelerator lever 17, various operation switches, monitor lamps, and the like that perform forward / reverse switching and continuously variable transmission in the forward / backward direction.

  In the grain recovery unit 5, a grain tank 22 that stores and collects the grain lifted by a screw-type cerealing device 21 erected from the threshing device 4, and a screw type that carries out the stored grain. The unloader 23 is provided. The grain tank 22 is composed of a bottom case 22A fixed to the traveling machine body 2 and a detachable tank main body 22B. The tank main body 22B is detachably fitted and connected to the bottom case 22A. Yes. The bottom case 22A has a sheet metal structure and is formed in a bowl-like shape toward the front and rear. A bottom screw 24 for discharging the grain is rotatably supported across the front wall plate 22f and the rear wall plate 22r of the bottom case 22A. In addition, a downflow guide plate 25 having a mountain-shaped cross section is installed and fixed over the front wall plate 22f and the rear wall plate 22r above the bottom screw 24.

  A drive case 26 is provided on the front wall plate 22 f, and a drive shaft 27 and a front end of the bottom screw 24 that are mounted laterally on the drive case 26 are interlocked with a bevel gear in the drive case 26. The inward end of the drive shaft 27 and the output shaft 10a of the engine 10 are wound and interlocked via the transmission belt 28, and the bottom screw is turned on and off by the belt tension type discharge clutch 29 acting on the transmission belt 28. 24 is driven and stopped.

  The tank body 22B is formed by blow molding of a resin material, and as shown in FIG. 5, an inspection cover 31 is provided on the upper surface of the tank body so as to be freely opened and closed, and a transparent window 30 is provided on the upper portion of the front surface of the tank. And the lower end part of the tank main body 22B is formed in the shape of a constriction, and it is comprised so that it may be inserted and connected to the upper end opening part of 22 A of bottom cases so that insertion / extraction is possible. As shown in FIGS. 5 to 7 and FIG. 9, a recess 32 is formed along the vertical direction on the side face of the tank body 22 </ b> B facing the aircraft body, leaving a part of the upper end side, and the upper end of the recess 32. An opening 33 is formed from the upper part to the upper part thereof, and the cerealing device 21 enters and is disposed in the recess 32, and the upper part of the cerealing device 21 is inserted and deployed in the opening 33. Thus, the grain storage space is also formed on the front side and the rear side of the cerealing device 21 by arranging the cerealing device 21 so as to enter the recess 32, thereby increasing the tank capacity. As shown in FIG. 1, the upper half of the front surface of the tank body 22B bulges forward so that it overlaps above the prime mover 6, thereby further increasing the tank capacity.

  In order to avoid the bonnet 9 from interfering with the front bulging portion 22b of the tank body 22B when the bonnet 9 in the driving portion 6 swings and opens around the fulcrum a of the outer lower end, The corner portion 9a is formed in a shape that is obliquely lacking.

  As shown in FIGS. 5 to 9, a connecting plate 34 is fixed to the upper portion of the cerealing device 21, and a buckle type equipped on the upper surface of the tank body 22 </ b> B is attached to a hook 35 provided at the upper end of the connecting plate 34. By locking and fastening the clamp metal fitting 36, the tank book 22B whose lower end is fitted and supported in the bottom case 22A is fixed in a predetermined standing posture. The connecting plate 34 includes a series of a vertical plate portion 34a positioned at the outer end of the threshing device 21 on the threshing device side, and an inclined plate portion 34b that obliquely penetrates and supports the threshing device 21, and a clamp fitting. The upper portion of the tank body 22B that is drawn toward the inside of the machine body by the fastening action of 36 is applied to and supported by the connecting plate 34, so that the opening 33 is closed. A sponge-like sealing material 37 is provided around the outer surface of the coupling plate 34, and the upper part of the cerealing device 21 and the grain tank 22 are connected in close contact, and blown out from the upper end discharge port 21 a of the cerealing device 21. The dust in the tank is prevented from leaking from the opening 33 on the exhausted air.

  The unloader 23 is a vertical feed auger 23A connected to the rear wall plate 22r of the bottom case 22A, and a horizontal feed connected to the upper end of the vertical feed auger 23A so as to swing up and down around a horizontal fulcrum x. The lower end of the vertical screw 38 built in the vertical feed auger 23A and the rear end of the bottom screw 24 are interlocked with the bevel gear, and the upper end of the vertical screw 38 and the horizontal feed auger 23B are built in. The base end of the transverse screw 39 is linked to the bevel gear via the intermediate screw 40 provided at the fulcrum x.

  The vertical feed auger 23A is supported by the connection case 41 connected to the rear wall plate 22r of the bottom case 22A so as to be pivotable about a vertical fulcrum y concentric with the screw shaft, and the vertical feed auger 23A. A ring gear 43 provided at the lower end is interlocked with a pinion gear 45 driven by an electric motor 44 so that the entire unloader 23 is swiveled forward and backward around the longitudinal fulcrum y by forward and reverse rotation of the electric motor 44. It has become.

  An electric cylinder 46 is installed over the longitudinal feed auger 23A and the lateral feed auger 23B, and the lateral feed auger 23B is vertically swung around the lateral fulcrum x by the expansion and contraction operation of the electric cylinder 46. . The lateral feed auger 23B is configured in a two-part structure that can be folded and stored in the middle in the longitudinal direction.

  As shown in FIGS. 6 to 8, the connecting plate 34 is provided with an auger receiver 48 and an unloader operating portion 49 via a bracket 47. The auger receiver 48 is formed in an upward U shape, and is configured to receive and support the lateral feed auger 23B in a predetermined storage position. In addition, when the non-working is performed, the supported lateral feed auger 23B is pressed and held by the rubber band 50, so that the lateral feed auger 23B is prevented from floating due to the shaking of the airframe.

  The operation portion 49 for the unloader is provided with an operation box 51 that protrudes toward the threshing device side from the side surface of the tank body 22B toward the body side and does not protrude forward from the front surface of the tank body 22B. A part of the threshing device 4 is disposed below the operation box 51. A swivel switch 52 for operating the electric motor 44 in the forward / reverse direction is provided at the upper front of the operation box 51, and an elevating switch 53 for extending / contracting the electric cylinder 46 is provided below the swivel switch 52. By operating the switch 52 and the raising / lowering switch 53, the transverse feed auger 23B can be swung and raised / lowered, and the discharge position at the tip thereof can be arbitrarily changed.

  A discharge clutch lever 55 linked to the tension arm 29a of the discharge clutch 29 via an operation wire 54 is provided on the right side of the front face of the operation box 51 so as to be able to swing up and down and project forward. . By moving the discharge clutch lever 55 to the upper operation position beyond the dead point, the tension arm 29a is lifted and swung to engage the discharge clutch 29, and the discharge clutch lever 55 is moved to the lower operation position beyond the dead point. Thus, the tension clutch 29a can be swung downward to cut the discharge clutch 29.

  As shown in FIG. 4, the threshing device 4 can swing the upper case 4a pivotally supported on a handling cylinder (not shown) with the upper part on the grain tank side as a fulcrum to open the handling chamber. The operation portion 49 is installed at a height that does not interfere with the upper case 4a swinging upward.

[Other Examples]
(1) The operation unit 49 of the unloader 23 can be mounted on a support or a support frame provided in the traveling machine body 2 or the threshing device 4.

  (2) A dedicated support column for supporting the auger receiver 48 can be provided upright, and the operation portion 49 of the unloader 23 can be mounted on this support column.

(3) Only the turning switch 52 and the raising / lowering switch 53 may be provided in the operation box 51 in the operation unit 49 of the unloader 23, and the discharge clutch lever 55 may be installed at another location near the driver's seat. Conversely, only the discharge clutch lever 55 can be provided in the operation box 51 of the operation unit 49, and the turning switch 52 and the lift switch 53 can be installed in the operation box 51 at another location near the driver's seat.
The present invention can be applied not only to a self-removing combine but also to a full-throw-in (ordinary) combine.

Combine side view Top view of the combine Combine side view Combine front view Front view of grain recovery unit Side view of the top of the grain tank as seen from inside the aircraft Plan view showing the operation part of the unloader Side view showing the operation structure of the discharge clutch Exploded perspective view showing the connection between the grain tank and the cerealing device

Explanation of symbols

4 Threshing device 7 Driving unit 21 Grain raising device 22 Grain tank 23 Unloader 23A Vertical feed auger 23B Horizontal feed auger 48 Auger receiver 49 Operation unit

Claims (3)

While deploying a grain tank with an unloader on the side of the threshing device, in the grain recovery part structure of the combine in which the operation part is deployed in front of the grain tank,
The operation unit of the unloader is installed at a position higher than the threshing device inside the machine body from the grain tank, and the threshing device is inserted below the operation unit. Construction.   2. The combine grain recovery unit structure according to claim 1, wherein the operation unit is supported on an upper part of a cerealing device erected from the threshing device.   A vertical feed auger that lifts the grain unloaded from the bottom of the grain tank; a undulating and swivelable transverse auger that transports the lifted grain laterally and discharges it from the tip; The combine grain recovery part structure according to claim 1 or 2, further comprising an auger receiver configured to receive and support the lateral feed auger in a predetermined posture of the machine body.

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