JP2013000092A - Grain discharging structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a grain transfer efficiency from a vertical auger to a horizontal auger while stabilizing a rotary action of the horizontal auger to the vertical auger.SOLUTION: In a state in which an inlet of a horizontal auger tube is joined to an outlet of the vertical auger, the horizontal auger cylinder is connected to the vertical auger cylinder rotatably around the center of outlet, and a vertical conveying shaft is equipped with a release blade at a point lower than the center of the outlet and in a manner that at least a part of the release blade faces the outlet. A transmission shaft having one end part operably connected to a vertical shaft body and the other end extended to the outside of the horizontal auger cylinder from the opposite side of the vertical auger cylinder is arranged coaxially with the outlet and the inlet. The horizontal auger cylinder is equipped with a transmission unit for operably connecting the other end part of the transmission shaft to the base end part of a horizontal shaft body, and the transmission shaft is equipped with a pushing blade at least partially overlapping a horizontal conveying shaft with respect to a shaft line direction position.

Description

  The present invention relates to a grain discharge structure for discharging grains stored in a Glen tank to the outside.

  Various grain discharging structures including a vertical auger that conveys grains stored in a grain tank upward and a horizontal auger that is connected to the upper part of the vertical auger so as to be vertically rotatable are proposed.

  For example, in Patent Document 1 below, a blade body is provided at the upper end of the vertical conveyance shaft of the vertical auger, and the grains conveyed upward by the vertical spiral of the vertical conveyance shaft are discharged to the horizontal auger by the blade body. A grain discharge structure configured as described above is disclosed.

  However, in the grain discharging structure described in Patent Document 1, the transmission shaft for transmitting rotational power from the vertical conveyance shaft to the horizontal conveyance shaft of the horizontal auger is the vertical auger cylinder of the vertical auger and the horizontal auger. It is provided outside the horizontal auger tube.

  Accordingly, a separate transmission shaft case for supporting the transmission shaft rotating together with the horizontal auger with respect to the vertical auger is required on the outer side of the vertical auger tube and the horizontal auger tube. There arises a problem of inviting.

  Patent Document 2 below proposes a grain discharging structure in which the transmission shaft is disposed inside the vertical auger cylinder and the horizontal auger cylinder.

  However, in the grain discharging structure described in Patent Document 2, a transmission structure that operatively connects the downstream end portion in the transmission direction of the transmission shaft and the base end portion of the horizontal conveyance shaft is provided inside the horizontal auger tube. Therefore, the problem that smooth conveyance of a grain is impaired arises.

  Furthermore, in the grain discharging structure described in Patent Document 2, the grain supply from the vertical auger to the horizontal auger is performed by a joint spiral provided on the transmission shaft. There is also the problem of complexity.

JP 2010-75161 A JP 2009-00006 A

  The present invention has been made in view of such prior art, and is a grain discharging structure comprising a vertical auger and a horizontal auger connected to an upper portion of the vertical auger so as to be vertically rotatable. It is an object of the present invention to provide a grain discharging structure capable of improving the grain transfer efficiency from the vertical auger to the horizontal auger while stabilizing the rotational movement of the auger with respect to the vertical auger.

  In order to achieve the object, the present invention includes a vertical auger having a vertical auger cylinder and a vertical conveying shaft, and a horizontal auger having a horizontal auger cylinder and a horizontal conveying axis, and is formed on the side of the base of the horizontal auger cylinder. The horizontal auger tube is connected to the vertical auger tube so as to be rotatable about the center of the discharge port in a state where the formed receiving port is concentrically joined to the discharge port formed on the upper side of the vertical auger tube. The vertical conveying shaft is operatively connected to a drive source, a vertical helix provided on the vertical axis, and the vertical helix above the vertical helix. The vertical auger cylinder has the vertical conveyance so that at least a part of the discharge blade faces the discharge port while the discharge blade is positioned below the center of the discharge port. The horizontal conveying shaft is provided on the horizontal shaft body and the horizontal shaft body. The horizontal auger cylinder has at least a part of the horizontal helix in which the upper end of the horizontal helix is located below the center of the receiving port in a standard posture in which the horizontal auger cylinder is placed on the auger rest. Is a transmission shaft that is arranged concentrically with the discharge port and the receiving port, and has one end operatively connected to the vertical body and the other end. A transmission shaft extending outward from the opposite side of the vertical auger tube in the horizontal auger tube, and the other end of the transmission shaft operatively connected to the base end of the horizontal shaft body A transmission unit provided in a horizontal auger cylinder and a pushing blade provided on the transmission shaft are provided, and the pushing blade at least partially overlaps the horizontal conveying shaft with respect to an axial position of the transmission shaft. Provide a grain discharge structure That.

  The outer shape of the horizontal transfer shaft when the horizontal transfer shaft is viewed along the axial direction when the horizontal auger tube is in the reference posture approaches the closest point closest to the vertical auger from the uppermost point located at the uppermost position. 1st arcuate part located below according to the above, the second arcuate part located below as approaching the lowest point located most downward from the proximity point, and the most spaced from the vertical auger from the lowest point A third arcuate portion that is positioned upward as it approaches the separation point, and a fourth arcuate portion that is positioned upward as it approaches the uppermost point from the separation point. It may have an arcuate region along at least a part of the first arcuate portion while allowing a part of the horizontal conveying shaft to face the discharge vane below the pushing blade in the reference posture.

Preferably, the horizontal auger tube accommodates the horizontal conveyance shaft so that a lower end of the horizontal spiral is positioned below a lower end of the receiving port in the reference posture.
That is, the horizontal auger cylinder can be formed such that a lower portion of the horizontal cylinder portion that accommodates the horizontal conveying shaft of the horizontal auger cylinder forms a recess recessed downward from the receiving port in the reference posture.

In one embodiment, the transmission unit includes a downstream intermediate shaft that is disposed coaxially with the horizontal shaft body, and whose one end is connected to the base end of the horizontal shaft so as not to rotate relative to the axis, and one end. Is operatively connected to the downstream intermediate shaft and extends radially outward of the downstream intermediate shaft to the opposite side of the vertical auger cylinder with reference to a virtual vertical plane passing through the axis of the downstream intermediate shaft. An upstream intermediate shaft, and a transmission mechanism for transmitting rotational power from the other end of the transmission shaft to the other end of the upstream intermediate shaft.
The horizontal auger cylinder surrounds the horizontal conveyance shaft, a downstream cylindrical part extending from the horizontal cylinder part toward the proximal end and surrounding the downstream intermediate shaft, and an upstream intermediate shaft. And an upstream cylinder portion and a box portion surrounding the transmission mechanism. The box portion has an opening opposite to the vertical auger tube, and the opening can be closed by a detachable lid member.

  In the various configurations, preferably, the grain discharging structure is pivotally supported by the vertical auger cylinder so as to be positioned coaxially with the center of the discharge port and extend to the opposite side of the horizontal auger cylinder. A support shaft, a width direction extending arm supported on the horizontal auger tube so as not to rotate relative to the horizontal auger tube so as to be substantially parallel to the rotation support shaft at a tip side from the receiving port, the rotation support shaft, A longitudinally extending arm that connects the free ends of the widthwise extending arms, a bracket that is supported by the widthwise extending arm so as not to be relatively rotatable, and an end portion that is relatively rotatably connected to the bracket. And a hydraulic cylinder device having the other end connected to the vertical auger tube so as to be relatively rotatable.

According to the grain discharging structure of the present invention, the transmission shaft that forms a part of the transmission path from the vertical axis of the vertical conveyance shaft to the horizontal axis of the horizontal conveyance shaft is substantially a vertical auger cylinder and a horizontal auger cylinder. Since the transmission shaft is disposed inside the vertical auger tube and the lateral auger tube, the transmission shaft case is unnecessary, which is necessary in the conventional configuration, and the cost is reduced. it can.
In the grain discharging structure according to the present invention, the transmission shaft is disposed coaxially with the center of rotation of the horizontal auger cylinder relative to the vertical auger cylinder, so that the transmission shaft is rotated by the horizontal auger cylinder. It also acts as a moving fulcrum shaft and can stabilize the vertical rotation of the horizontal auger tube.

  Furthermore, in the grain discharging structure according to the present invention, a transmission unit that operatively connects the transmission shaft to the horizontal shaft body is provided in the horizontal auger tube. That is, the transmission unit is integrated with the horizontal auger tube that rotates with respect to the vertical auger tube. Therefore, it is possible to stabilize the vertical rotation of the horizontal auger tube as compared to the conventional configuration in which the transmission unit is separated from the horizontal auger tube.

Furthermore, in the grain discharging structure according to the present invention, one end of the transmission shaft is operatively connected to the longitudinal body, and the other end is outward from the side opposite to the vertical auger tube in the horizontal auger tube. The transmission shaft is disposed so as to straddle the horizontal conveyance shaft, and a push blade is provided on the transmission shaft so as to at least overlap the horizontal conveyance shaft with respect to the axial position of the transmission shaft.
According to such a configuration, the inside of the vertical cylinder portion is transported upward by the vertical spiral of the vertical transport shaft, and the horizontal auger tube from the vertical auger cylinder through the discharge port and the receiving port by the discharge blade of the vertical transport shaft. The transfer efficiency of the grain sent to the auger tube can be improved.

That is, the discharge blade discharges the grain conveyed upward in the vertical auger cylinder by the vertical spiral toward the horizontal conveyance axis, but some grains do not go to the horizontal conveyance axis. It scatters in the internal space of the vertical auger tube and the horizontal auger tube. Moreover, a part of the grain discharged toward the horizontal conveyance shaft by the discharge blade is repelled by the horizontal conveyance shaft and scattered in the internal space. When the amount of the scattered grain increases, the grain transfer efficiency from the vertical auger cylinder to the horizontal auger cylinder deteriorates.
In this regard, since the pushing blades are provided in the grain discharging structure according to the present invention, the grains scattered from the discharging blades and / or the grains repelled by the lateral conveying shaft are released. The blades and the horizontal conveying shaft can be pushed into the facing space, thereby improving the grain transfer efficiency from the vertical auger tube to the horizontal auger tube.

FIG. 1 is a side view of a combine to which a grain discharging structure according to an embodiment of the present invention is applied. FIG. 2 is a plan view of the combine shown in FIG. FIG. 3 is a transmission schematic diagram of the combine shown in FIGS. 1 and 2. FIG. 4 is a partial perspective view of the grain discharging structure, and is a partial perspective view seen from the right rear side along the arrow IV in FIG. FIG. 5 is a partial perspective view of the grain discharging structure, and is a partial perspective view seen from the side along the arrow V in FIG. 2. FIG. 6 is a longitudinal rear view of the grain discharging structure taken along line VI-VI in FIG. 2. FIG. 7 is a cross-sectional plan view of the grain discharging structure along the line VII-VII in FIG. FIG. 8 is a rear perspective view of the grain discharging structure in a state where the vertical auger tube and the horizontal auger tube are cut out. FIG. 9 is a perspective view of the grain discharge structure along the arrow IV in FIG. 2 and shows a state where the lid member is removed.

Hereinafter, an embodiment of a grain discharging structure according to the present invention will be described with reference to the accompanying drawings.
The side view of the combine 1 provided with the grain discharge structure 100 which concerns on this embodiment, a top view, and a transmission schematic diagram are respectively shown in FIGS.

  As shown in FIG. 1 and FIG. 2, the combine 1 transports the traveling machine body 2, a traveling unit 3 including a pair of left and right crawlers, a mowing unit 4, and cereals harvested by the mowing unit 4 into the machine. Transporting unit 5, threshing unit 6 that performs threshing processing on the harvested cereal meal sent by the transporting unit 5, and screening unit 7 that performs sorting processing on the cereals threshed by the threshing unit 6. A grain tank 8 for storing the grains selected by the sorting unit 7, a waste processing unit 9 for processing the waste sent from the threshing unit 6, and a control provided with a driver's seat The grain discharging structure 100 according to the present embodiment is applied to the combine 1 in order to discharge the grain stored in the Glen tank 8.

As shown in FIG. 3, the combine 1 further includes an engine 11 supported by the traveling machine body 2, and a transmission 12 that changes the rotational power input from the engine 11. The shifted rotational power is transmitted to the traveling unit 3.
On the other hand, the rotational power from the engine 11 is operatively transmitted to the grain discharging structure 100 together with the cutting unit 4, the transport unit 5, the threshing unit 6, and the sorting unit 7 without passing through the transmission 12. ing.

  As shown in FIGS. 1 and 2, the cutting unit 4 includes a platform 41 connected to a front end portion of the following feeder house 51 in the transport unit 5, and the inside of the platform 41 in a state where the rotation axis is along the left-right direction. A lateral feed auger 42 disposed on the front side, a cutting blade 43 and a divider 44 disposed immediately before the lateral feed auger 42, and the feeder via an elevating mechanism 45 so as to be positioned above the divider 44. It has a take-up reel 46 supported by the house 51 or the platform 41 so as to be movable up and down.

  The mowing unit 4 rakes the cereal planted in the field with the divider 44 and the take-up reel 46 and sews the cereal with the cutting blade 43. Collected in the center and delivered to the transport unit 5 that follows.

  As shown in FIGS. 1-3, the said conveyance part 5 raises / lowers the said feeder house 51 supported by the front-end part of the said traveling body 2 along the front-back direction so that vertical rotation is possible, and the said feeder house 51. As shown in FIG. Elevating device (not shown), a conveyor 52 disposed inside the feeder house 51, and a front conveyor beater for conveying the cereals inherited from the conveyor 52 to the subsequent threshing section 6 (FIG. Not shown).

As shown in FIG. 3, the transport unit 5 and the cutting unit 4 are driven by rotational power transmitted from the engine 11 through a counter case 13.
In addition, the code | symbol 14 in FIG. 3 is a cutting clutch which engages / disengages transmission of the rotational power from the engine 11 to the conveyance part 5 and the cutting part 4.

The threshing unit 6 includes a handling chamber 61 whose front end communicates with the rear end of the feeder house 51, and a handling drum 62 disposed in the handling chamber 61.
The handling cylinder 62 has a predetermined interval between a handling cylinder main body driven in the longitudinal direction of the machine body and driven around the rotational axis by the rotational power from the engine 11, and an outer peripheral wall of the handling cylinder main body. A plurality of teeth handling teeth provided.
The handling chamber 61 is provided with a receiving net located directly below the handling cylinder 62 and along the lower portion of the outer peripheral wall of the handling cylinder main body.

The threshing unit 6 conveys the cereals sent from the conveyance unit 5 to the rear side while performing the threshing process.
That is, threshing including grains and ears cut off from the cereal by the threshing unit 6 passes through the receiving net by its own weight and flows down to the sorting unit 7 positioned below, while being relatively large. The waste is transferred from the handling chamber 61 to the waste treatment unit 9 at the rear.
As shown in FIG. 3, the threshing unit 6 receives rotational power from the engine 11 via a threshing clutch 15, and the waste disposal unit 9 receives rotational power from the engine 11 via a waste clutch 16. Enter.

  As shown in FIG. 3, the sorting unit 7 includes a swing sorting unit 71 that performs swing sorting on the cereals flowing down from the receiving net, and a front and lower upper side with respect to the swing sorting unit 71. A wind sorting unit 72 that sends a sorting wind toward the first and second and second rice cakes (not shown) that aggregate the first and second grains sorted by the swing sorting unit 71, It has the 1st conveyor 73 and the 2nd conveyor 74 which were each arrange | positioned at the said 1st basket and the said 2nd basket.

The first grain aggregated in the first bowl is transferred to the grain tank 8 through the first conveyor 73 and the cereal conveyor.
On the other hand, the second grain aggregated in the second basket is returned to the swing sorting unit 71 via the second conveyor 74 and the reduction conveyor 75.

  As shown in FIG. 3, the first conveyor 73, the second conveyor 74, the cereal conveyor and the reduction conveyor 75 receive rotational power from the engine 11 through the counter case 13.

  The Glen tank 8 includes a tank body 81 for storing the first grain supplied via the first conveyor 73 and the cereal conveyor, and a book for discharging the grains in the tank body 81 to the outside. The grain discharging structure 100 according to the embodiment is included.

In the present embodiment, the Glen tank 8 further has a grain discharge conveyor 82 disposed in the lower part of the tank body 81 as shown in FIG. The processed grain is sent to the grain discharge structure 100 by the grain discharge conveyor 82.
As shown in FIG. 3, the grain discharge conveyor 82 receives rotational power from the engine 11 via the grain discharge clutch 17.

FIG. 4 is a partial perspective view of the grain discharging structure 100, showing a partial perspective view seen from the right rear side along the arrow IV in FIG.
FIG. 5 is a partial perspective view of the grain discharging structure 100 and shows a partial perspective view seen from the side along the arrow V in FIG.
Furthermore, FIG. 6 shows a longitudinal rear view of the grain discharging structure 100 along the line VI-VI in FIG.

The grain discharging structure 100 is a structure for discharging the grains stored in the Glen tank 8 to the outside.
Specifically, as shown in FIGS. 4 to 6, the grain discharging structure 100 includes a vertical auger 110 including a vertical auger cylinder 120 and a vertical conveyance shaft 130, a horizontal auger cylinder 150 and a horizontal conveyance shaft 160. And a horizontal auger 140.
In FIG. 4, a part of the horizontal auger tube 150 is not shown, and the horizontal conveying shaft 160 is illustrated.

  The vertical auger cylinder 120 is erected along a substantially vertical direction, and has a receiving port (communication with the tank main body 81 so as to receive the grain sent by the grain discharge conveyor 82 at a lower end portion thereof ( And a circular discharge port 121 (see FIG. 6) that opens to the side.

As shown in FIG. 6, the horizontal auger tube 150 has a circular receiving port 151 that opens laterally at the base end.
The horizontal auger tube 150 rotates around the center of the discharge port 121 (hereinafter referred to as a rotation center C as appropriate) around the vertical auger tube 120 in a state where the receiving port 151 is concentrically joined to the discharge port 121. It is linked movably.

  In the present embodiment, the portion of the vertical auger tube 120 where the discharge port 121 is formed is inserted into the receiving port 151 of the horizontal auger tube 150. A portion of the tube 150 where the receiving port 151 is formed can be inserted into the discharge port 121 of the vertical auger tube 120.

  Alternatively, the vertical auger cylinder 120 is provided with a vertical auger side flange surrounding the discharge port 121, and the horizontal auger cylinder 150 is provided with a horizontal auger side flange surrounding the receiving port 151, the vertical auger side flange and the horizontal auger It is also possible to connect the horizontal auger tube 150 to the vertical auger tube 120 so as to be rotatable about the rotation center C with the auger side flange in contact therewith.

  As shown in FIG. 3, the vertical conveying shaft 130 is inserted into the vertical auger cylinder 120 in a state in which it is operatively connected to the engine 11, and rotates about its axis by the rotational power from the engine 11. Then, the grain is conveyed from the lower end portion of the vertical auger cylinder 120 to the upper end portion.

  Specifically, as shown in FIG. 6, the vertical conveyance shaft 130 includes a vertical body 131 that is driven to rotate around an axis by rotational power from the engine 11, and a vertical spiral 132 that is provided on the vertical body 131. And have.

  The vertical body 131 is supported by the vertical auger cylinder 120 so as to be rotatable about its axis in a state in which a lower end portion is operatively connected to the grain transport conveyor 82 so as to input rotational power from the grain transport conveyor 82. Has been.

  The vertical spiral 132 is provided on the vertical axis 131 so as to convey the grain from below to above in accordance with the rotation of the vertical axis 131 about the axis.

In the present embodiment, as shown in FIG. 6, the vertical conveyance shaft 130 further has a discharge blade 133 provided on the vertical axis 131 above the vertical spiral 132.
The discharge blade 133 repels the grain conveyed upward by the vertical spiral 132 from the vertical auger cylinder 120 via the discharge port 121.

  As shown in FIG. 6, the vertical auger cylinder 120 includes the vertical auger cylinder 120 such that the discharge blade 133 is positioned below the center of the discharge port 121 and at least a part of the discharge blade 133 faces the discharge port 121. The conveyance shaft 130 is accommodated.

FIG. 7 shows a cross-sectional plan view of the grain discharging structure 100 along the line VII-VII in FIG.
FIG. 8 is a rear perspective view of the grain discharging structure 100 with the vertical auger cylinder 120 and the horizontal auger cylinder 150 cut out.

The horizontal conveying shaft 160 is supported by the horizontal auger tube 150 so as to be rotatable about its axis.
Specifically, as shown in FIGS. 6 to 8, the horizontal conveying shaft 160 includes a horizontal shaft body 161 that is supported by the horizontal auger tube 150 so as to be rotatable about the axis line, and a rotation around the axis line of the horizontal shaft body 161. Accordingly, a horizontal helix 162 is provided on the horizontal shaft body 161 so as to convey the grain from the proximal end side to the distal end side of the horizontal shaft body 161.

  As shown in FIGS. 6 and 8, the horizontal auger tube 150 is configured such that the upper end of the horizontal spiral 162 is the receiving port 151 in the standard posture in which the horizontal auger tube 150 is placed on the auger rest 21 (see FIG. 1). The horizontal conveying shaft 160 is accommodated so that at least a part of the horizontal spiral 162 faces the receiving port 151.

  As shown in FIGS. 6 to 8, the grain discharging structure 100 according to the present embodiment further includes a transmission shaft 170 and a transmission unit 200, and the lateral conveying shaft 160 is connected to the transmission shaft 170 and the transmission shaft 170. It is operatively connected to the vertical conveying shaft 130 via the transmission unit 200.

  As shown in FIGS. 6 and 8, the transmission shaft 170 is disposed concentrically with the discharge port 121 and the receiving port 151, and one end 171 is operatively connected to the vertical body 131. .

  In the present embodiment, as shown in FIGS. 6 and 8, one end portion 171 of the transmission shaft 170 is supported by the vertical auger cylinder 120 via a bearing member 175 so as to be rotatable about its axis, It is connected to the longitudinal axis 131 through a driving side bevel gear 171a and a driven side bevel gear 171b.

Specifically, the drive-side bevel gear 171a is supported on a portion of the longitudinal axis 131 that is positioned above the discharge blade 133 so as not to be relatively rotatable, and one end portion 171 of the transmission shaft 170 is supported by the drive-side bevel gear 171a. The driven bevel gear 171b is supported so as not to rotate relative to the bevel gear 171a.
Reference numeral 135 in FIGS. 6 and 8 denotes a bearing member that supports the longitudinal body 131 so as to be rotatable about its axis.

  As shown in FIGS. 6 and 8, the other end 172 of the transmission shaft 170 extends outward from the opposite side of the horizontal auger cylinder 150 to the vertical auger cylinder 120.

  The transmission unit 200 is provided in the horizontal auger tube 150 so as to operatively connect the other end 172 of the transmission shaft 170 to a proximal end portion of the horizontal shaft body 161.

  FIG. 9 is a perspective view of the grain discharging structure 100 viewed from the left rear along the arrow IV in FIG. 2, and shows a state in which the following lid member 155 is removed.

  In the present embodiment, as shown in FIGS. 6 to 9, the transmission unit 200 is disposed coaxially with the horizontal shaft body 161, and one end thereof is rotated around the axis of the base end portion of the horizontal shaft body 161. The longitudinal axis 201 is connected to the downstream intermediate shaft 201 that is relatively non-rotatable, and the vertical vertical plane P that passes through the axis of the downstream intermediate shaft 201 with one end operatively connected to the downstream intermediate shaft 201. An upstream intermediate shaft 202 extending radially outward of the downstream intermediate shaft 201 to the opposite side of the auger cylinder 120, and rotating from the other end 172 of the transmission shaft 170 to the other end of the upstream intermediate shaft 202 And a transmission mechanism 210 for transmitting power.

  The transmission mechanism 210 includes a drive-side rotating member 211 that is supported by the other end portion 172 of the transmission shaft 170 so as not to rotate relative to the other end portion of the upstream intermediate shaft 202 and a driven side that is supported by the other end portion of the upstream intermediate shaft 202 so as not to rotate relatively. The rotating member 212 includes an endless body 213 wound around the driving side rotating member 211 and the driven side rotating member 212.

As shown in FIGS. 6 and 8, the grain discharging structure 100 according to the present embodiment further includes a pushing blade 180 provided on the transmission shaft 170.
The pushing blades 180 are arranged so as to at least partially overlap the lateral conveying shaft 160 with respect to the axial position of the transmission shaft 170.

In the grain discharging structure 100 having such a configuration, the following effects can be obtained.
The transmission shaft 170 forming a part of the transmission path from the vertical axis 131 of the vertical conveyance shaft 130 to the horizontal shaft 161 of the horizontal conveyance shaft 160 is substantially the vertical auger cylinder 120 and the horizontal auger. It is arranged in the cylinder 150. Therefore, the transmission shaft case which is necessary in the conventional configuration in which the transmission shaft 170 is disposed outside the vertical auger tube 120 and the horizontal auger tube 150 can be eliminated, and the cost can be reduced.

  In this embodiment, the transmission shaft 170 is arranged concentrically with the discharge port 121 and the receiving port 151, that is, coaxially with the rotation center C of the horizontal auger tube 150 relative to the vertical auger tube 120. As a result, the transmission shaft 170 can also act as a pivot fulcrum shaft of the horizontal auger tube 150, and the vertical rotation of the horizontal auger tube 150 can be stabilized.

  In the present embodiment, the discharge blade 133 is rotated while the transmission shaft 170 whose one end 171 is operatively connected to the longitudinal body 131 is positioned on the rotation center C of the lateral auger 140. The vertical axis 131 is provided below the moving center C and at least a part thereof faces the discharge port 121, and the other end 172 of the transmission shaft 170 is operatively connected to the base end of the horizontal axis 161. Since the transmission unit 200 is provided in the horizontal auger tube 150 outside the grain transfer space, a member for transmitting rotational power from the vertical transfer shaft 130 to the horizontal transfer shaft 160 is provided from the vertical auger tube 120 to the horizontal auger. The transmission unit 200 can be brought as close as possible to the rotation center C of the horizontal auger cylinder 150 while effectively preventing the transfer of the grain to the cylinder 150. Therefore, the moment of inertia when the horizontal auger 140 is rotated can be reduced, and the rotational stability of the horizontal auger 101 can be improved.

  Further, in the present embodiment, the transmission shaft 170 has one end portion 171 operatively connected to the longitudinal body 131 and the other end portion 172 from the opposite side of the horizontal auger tube 150 to the vertical auger tube 120. And extends across the horizontal conveyance shaft 160. The transmission shaft 170 is provided with the pushing blades 180 so as to at least overlap the lateral conveying shaft 160 with respect to the axial direction position of the transmission shaft 170.

  According to such a configuration, the horizontal auger tube 120 is transported upward by the vertical spiral 132 and is discharged from the vertical auger tube 120 by the discharge blade 133 through the discharge port 121 and the receiving port 151. The transfer efficiency of the grains transferred to the cylinder 150 can be improved.

That is, the discharge blade 133 discharges the grain conveyed upward in the vertical auger cylinder 120 by the vertical spiral 132 toward the horizontal conveyance shaft 160.
At this time, a part of the grain discharged by the discharge blade 133 is not directly directed to the lateral conveyance shaft 160 but is scattered in the space defined by the joint between the discharge port 121 and the receiving port 151. . Furthermore, even if the grain is directly discharged toward the horizontal conveying shaft 160 by the discharge blade 133, a part of the grain is repelled by the horizontal conveying shaft 160 (particularly, the horizontal spiral 162), It scatters in the space. When the amount of the scattered grain increases, the grain transfer efficiency from the vertical auger cylinder 120 to the horizontal auger cylinder 150 deteriorates.

  In this regard, in the present embodiment, as described above, the pushing blade 180 is provided. Accordingly, the grains scattered from the discharge blade 133 and / or the grains repelled by the horizontal conveyance shaft 160 are transferred to the transfer region where the discharge blade 133 and the horizontal conveyance shaft 160 are opposed to each other by the push blade 180. It is possible to push in, thereby improving the grain transfer efficiency from the vertical auger cylinder 120 to the horizontal auger cylinder 150.

  In the present embodiment, the pushing blade 180 allows a part of the horizontal conveying shaft 160 to face the discharge blade 133 below the pushing blade 180 when the horizontal auger tube 150 is in the reference posture. However, it has an arcuate region 181 along the outer shape of the horizontal conveying shaft 160.

  Specifically, as shown in FIG. 6, the outer shape of the horizontal conveyance shaft 160 when the horizontal conveyance shaft 160 is viewed along the axial direction when the horizontal auger tube 150 is in the reference posture is located at the uppermost position. A first arcuate portion 160 (1) positioned downward as it approaches the closest point 160b closest to the vertical auger 110 from the uppermost point 160a, and downward as it approaches the lowest point 160c positioned lower than the adjacent point 160b. A second arcuate portion 160 (2) located at the uppermost position, a third arcuate portion 160 (3) located above the lowermost point 160c as it approaches the separation point 160d farthest from the vertical auger 110, and A fourth arcuate portion 160 (4) positioned upward as it approaches the uppermost point 160a from the separation point 160d.

The arcuate region 181 extends along the upper region of the first arcuate portion 160 (1) while allowing the lower region of the first arcuate portion 160 (1) to face the discharge blade 133.
According to such a configuration, it is possible to effectively ensure the effect of pushing the grain by the pushing blade 180 while securing the grain transfer passage from the discharge blade 133 to the lateral transport shaft 160.

  As shown in FIG. 6, in the present embodiment, in addition to the arcuate region 181, the discharge vane 180 is connected to the transmission shaft 170 from the end of the arcuate region 181 on the side close to the vertical auger 110. A first linear region 182 extending toward the vertical auger 110 along the axial direction, and an end of the arcuate region 181 on the side away from the vertical auger 110 along the axial direction of the transmission shaft 170. And a second straight region 183 extending in a direction away from the auger 110.

  Further, in the present embodiment, as shown in FIG. 6, the horizontal auger tube 150 is arranged so that the lower end of the horizontal spiral 162 is positioned below the lower end of the receiving port 151 in the reference posture. The shaft 160 is accommodated.

That is, as shown in FIGS. 6 and 8, the horizontal auger cylinder 150 has a horizontal cylindrical body 150a that accommodates the horizontal conveying shaft 160 and a receiving portion 151b in which the receiving port 151 is provided. .
In the reference posture, the horizontal cylinder 150a and the receiving portion 150b are arranged so that the lower part of the horizontal cylinder 150a is recessed downward from the receiving port 151.

  According to such a configuration, the concave portion formed by the lower portion of the horizontal cylinder 150a in the reference posture of the horizontal auger cylinder 150 is transferred from the vertical auger cylinder 120 to the horizontal auger cylinder 150 by the discharge blade 133. It will be used as a temporary storage space for the grain, and the amount of rebound of the grain released toward the horizontal auger tube 150 by the discharge blade 133 can be reduced.

In the present embodiment, as shown in FIGS. 4, 7 and 9, the horizontal auger cylinder 150 is provided with the horizontal cylinder portion 150 a surrounding the horizontal conveyance shaft 160 and the receiving port 151. In addition to the receiving portion 150b, a downstream cylindrical portion 150c extending from the horizontal cylindrical portion 150a to the proximal end side and surrounding the downstream intermediate shaft 201, and an upstream cylindrical portion 150d surrounding the upstream intermediate shaft 202 And a box portion 150e surrounding the transmission mechanism 210.
The box 150e has an opening opposite to the vertical auger cylinder 120, and the opening is closed by a detachable lid member 155.
According to such a configuration, the assembly work efficiency of the transmission mechanism 210 can be improved.

  As shown in FIGS. 4, 5, and 8, the grain discharging structure 100 according to the present embodiment further includes a hydraulic cylinder device that rotates the horizontal auger 140 in the vertical direction with respect to the vertical auger 110. In order to stabilize the raising / lowering operation of the horizontal auger 140 by the hydraulic cylinder device 250, the following configuration is provided.

That is, as shown in FIGS. 4 to 6 and 8, the grain discharging structure 100 is located on the same axis as the rotation center C and extends in the opposite direction to the side auger tube 150. The pivot support shaft 260 supported by the auger cylinder 120 and the lateral auger cylinder 150 are supported so as not to rotate relative to the horizontal auger cylinder 150 so as to be substantially parallel to the pivot support shaft 260 on the tip side from the receiving portion 151. A width-direction extending arm 265, a longitudinally extending arm 270 that connects the rotation support shaft 260 and the free ends of the width-direction extending arm 265, and the width-direction extending arm 265 are relatively unrotatable. And a supported bracket 275.
In this configuration, the hydraulic cylinder device 250 has one end connected to the bracket 275 so as to be relatively rotatable and the other end connected to the vertical auger tube 120 so as to be relatively rotatable.

  In the present embodiment, as shown in FIG. 4, the base end portion of the longitudinally extending arm 270 is located on the base end side from the receiving port 151, and the receiving end is connected via a connecting member 280. It is connected to the portion 150b.

21 auger rest 100 grain discharge structure 110 vertical auger 120 vertical auger cylinder 121 discharge port 130 vertical conveyance shaft 131 vertical body 132 vertical spiral 133 discharge blade 140 horizontal auger 150 horizontal auger cylinder 150a horizontal cylinder part 150b receiving part 150c downstream cylinder part 150d Upstream cylinder portion 150e Box 151 Receiving port 155 Lid member 160 Horizontal transport shaft 160a Top point 160b Proximity point 160c Bottom point 160d Separation point 160 (1) First arcuate part 160 (2) Second arcuate part 160 (3 ) Third arc-shaped portion 160 (4) Fourth arc-shaped portion 161 Horizontal shaft body 162 Horizontal spiral 170 Transmission shaft 171 Transmission shaft one end 172 Transmission shaft other end 180 Pushing blade 181 Arc-shaped region 200 Transmission unit 201 Downstream intermediate shaft 202 Upstream intermediate shaft 210 Transmission mechanism 250 Hydraulic cylinder device 260 Rotation support shaft 265 Width Direction extending arm 270 longitudinal extending arm 275 bracket

Claims (5)

A vertical auger having a vertical auger tube and a vertical conveying shaft, and a horizontal auger having a horizontal auger tube and a horizontal conveying shaft, and a receiving port formed on the side of the base of the horizontal auger tube is on the upper side of the vertical auger tube A grain discharging structure in which the horizontal auger tube is connected to the vertical auger tube so as to be rotatable about the center of the discharge port in a state of being concentrically joined to the discharge port formed on the side,
The vertical conveying shaft has a vertical axis operatively connected to a drive source, a vertical spiral provided on the vertical axis, and a discharge blade provided on the vertical axis above the vertical spiral. ,
The vertical auger cylinder accommodates the vertical conveying shaft such that at least a part of the discharge blade faces the discharge port while the discharge blade is positioned below the center of the discharge port,
The horizontal conveying shaft has a horizontal shaft body and a horizontal spiral provided in the horizontal shaft body,
The horizontal auger cylinder has an upper end of the horizontal spiral located below the center of the receiving port and a portion of the horizontal spiral facing the receiving port in a standard posture in which the horizontal auger tube is placed on the auger rest. So as to accommodate the horizontal conveying shaft,
A transmission shaft disposed concentrically with the discharge port and the receiving port, one end portion of which is operatively connected to the vertical body and the other end portion of the horizontal auger tube from the side opposite to the vertical auger tube. A transmission shaft extending outward, a transmission unit provided in the horizontal auger tube so as to operatively connect the other end of the transmission shaft to a proximal end of the horizontal shaft body, and provided in the transmission shaft And provided pushing blades,
The grain discharging structure according to claim 1, wherein the pushing blade at least partially overlaps the lateral conveying shaft with respect to the axial direction position of the transmission shaft. The outer shape of the horizontal transfer shaft when the horizontal transfer shaft is viewed along the axial direction when the horizontal auger tube is in the reference posture approaches the closest point closest to the vertical auger from the uppermost point located at the uppermost position. 1st arcuate part located below according to the above, the second arcuate part located below as approaching the lowest point located most downward from the proximity point, and the most spaced from the vertical auger from the lowest point A third arcuate portion positioned upward as approaching the separation point, and a fourth arcuate portion positioned upward as approaching the uppermost point from the separation point,
The pushing blade is along at least a part of the first arcuate portion while allowing a part of the horizontal conveying shaft to face the discharge blade below the pushing blade when the horizontal auger cylinder is in a reference posture. The grain discharging structure according to claim 1, wherein the grain discharging structure has an arcuate region.   The said horizontal auger pipe | tube has accommodated the said horizontal conveyance axis | shaft so that the lower end of the said horizontal spiral may be located in the downward direction from the lower end of the said receiving port in the said reference | standard posture. Kernel discharge structure. The transmission unit is disposed coaxially with the horizontal shaft body and has one end portion connected to the base end portion of the horizontal shaft body so as not to be relatively rotatable around the axis, and one end portion is the downstream intermediate portion. An upstream intermediate shaft extending outward in the radial direction of the downstream intermediate shaft toward the opposite side of the vertical auger tube with reference to a virtual vertical plane passing through the axis of the downstream intermediate shaft in a state of being operatively connected to the shaft; A transmission mechanism for transmitting rotational power from the other end portion of the transmission shaft to the other end portion of the upstream intermediate shaft,
The horizontal auger cylinder surrounds the horizontal conveyance shaft, a downstream cylindrical part extending from the horizontal cylinder part toward the proximal end and surrounding the downstream intermediate shaft, and an upstream intermediate shaft. And integrally having an upstream tube portion and a box portion surrounding the transmission mechanism,
The grain discharging structure according to any one of claims 1 to 3, wherein the box portion has an opening opposite to the vertical auger tube, and the opening is closed by a detachable lid member.   A rotation support shaft that is positioned coaxially with the center of the discharge port and that is supported by the vertical auger tube so as to extend to the opposite side of the horizontal auger tube, and the rotation support shaft that is closer to the distal end than the receiving port A longitudinally extending arm that is supported by the horizontal auger tube so as not to rotate relative to the horizontal auger so as to be substantially parallel to the horizontal auger, and a free end of the rotationally supporting shaft and the laterally extending arm. An extending arm, a bracket supported by the widthwise extending arm so as not to be relatively rotatable, one end of which is connected to the bracket to be relatively rotatable, and the other end is connected to the vertical auger tube to be relatively rotatable. The grain discharging structure according to any one of claims 1 to 4, further comprising a hydraulic cylinder device.

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