Harvester

Abstract

The present application provides a harvester. It is urgently desired that even if the left and right positions are different, the crop can be well picked up by the pick-up body. In the harvesting part, a transverse conveying auger (29) is provided, in which a cylindrical auger drum is provided with helical blades (38) for crop transfer on the outer peripheral part and rotates around a horizontal axis core (P4); and a plurality of pick-up bodies (37) rotate integrally with the auger drum while entering and exiting, thereby picking up the crop to the rear of the machine body; in the transverse conveying auger (29), the plurality of pick-up bodies (37) are dispersedly arranged at different positions in the left and right directions in a state that the front end rotating tracks (Q1, Q2) of the front end parts rotating with the auger drum are different when observed from the side of the machine body.

Description

Technical Field

[0001] This invention relates to harvesters such as combine harvesters and corn harvesters. Background Technology

[0002] The harvester includes a harvesting section for harvesting crops and a crop conveying device for conveying the harvested crops to the rear of the machine. The harvesting section includes a transverse conveying auger that moves the crops in the left-right direction and conveys them toward the inlet of the crop conveying device.

[0003] In a transverse conveying auger, a cylindrical auger drum and multiple feeders are included. These feeders move in and out of the auger drum while rotating together with it, thus feeding the crop backward. The rotation axis of the feeders is eccentric to the rotation axis of the auger drum, and the amount of protrusion of the feeders from the auger drum varies with rotation. Furthermore, conventionally, the movement trajectories of the multiple feeders relative to the front end of the auger drum are configured to trace identical trajectories, with the largest protrusion occurring at the lower front part of the auger drum (for example, see Patent Document 1).

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2017-158450 Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] In the existing structure described above, the crop being moved to the vicinity of the straw conveyor's inlet can be smoothly pushed backward using the pushing body. However, at the part where the crop separates to the left or right from the inlet of the crop conveyor, for example, there are cases where the crop may become stuck against the side wall of the harvesting section. For such crops, it may not be possible to achieve a good pushing effect.

[0009] Therefore, there is an urgent need to ensure that crops can be successfully inserted using the inserter even if the positions are different in the left and right directions.

[0010] means for solving problems

[0011] The harvester of the present invention is characterized by comprising: a harvesting section for harvesting crops; and a crop conveying device for conveying the harvested crops toward the rear of the machine body; wherein the harvesting section comprises: a harvesting section frame having left and right side walls; and a transverse conveying auger that is driven to rotate across the left and right side walls to convey crops along the transverse width of the machine body toward the inlet of the crop conveying device; wherein the transverse conveying auger comprises: a cylindrical auger drum having helical blades for crop conveying provided on its outer periphery and rotating about a transverse axis; and a plurality of feeders that move in and out of the auger drum while rotating integrally with the auger drum, thereby feeding crops toward the rear of the machine body; wherein the plurality of feeders are distributed at different positions in the left and right directions with different front-end rotation trajectories when viewed from the side of the machine body, as the front ends rotate with the auger drum.

[0012] According to the present invention, multiple feeders distributed at different positions in the left and right directions of the transverse conveying auger have different front-end rotation trajectories when viewed from the side of the machine body. For example, the feeder's front-end rotation trajectories can be made different from those of the feeders near the inlet of the crop conveying device and those separated to the left and right from the inlet of the crop conveying device, thus changing the feeder's feeding action. As a result, it is possible to set a state in which the feeder can easily and effectively perform its feeding action, depending on the condition of the crop, which varies depending on its position in the left and right directions.

[0013] Therefore, in a transverse conveying auger, even if the positions in the left and right directions are different, the feeder can still feed the crop effectively.

[0014] In this invention, preferably, among the plurality of inserts, on at least one side of the transverse conveying auger in the left-right direction, the maximum protruding position of the front end rotation trajectory of the end-side insert located on the end side is set to be higher than the rotation center position of the auger drum from the outer periphery of the auger drum.

[0015] According to this structure, the end-side feeder located at the left and right ends of the transverse conveying auger can feed the crop at a position where its maximum protrusion is higher than the rotation center of the auger drum. As a result, for example, even crops leaning against the side wall of the harvesting section can be easily fed in.

[0016] In this invention, preferably, the maximum protruding position of the end-side insert is located upstream in the rotational direction compared to the maximum protruding position of the insert corresponding to the inlet of the crop conveying device.

[0017] The maximum protruding position of the feeder corresponding to the inlet of the crop conveying device is located on the lower front side of the auger drum to facilitate feeding the crop into the conveying device. However, the maximum protruding position of the feeder on the end side is located on the upstream side in the rotation direction, i.e., on the upper side as viewed from the lower front side of the auger drum, compared to the maximum protruding position of the feeder corresponding to the inlet. Therefore, even crops leaning against the side wall of the harvesting section can be easily fed into the feeder.

[0018] In contrast, the end-side feeder has the largest protruding position on the upstream side of the rotation direction compared to the feeder corresponding to the inlet of the same crop conveying device. Therefore, it is located at a higher position in the front of the auger drum, so it can easily perform the feeder function even when the rice stalks are being cut in an upright posture or against the side wall.

[0019] In this invention, preferably, the maximum protruding position of the end-side insert is located within the rotation range spanning the front and upper positions of the auger drum.

[0020] According to this structure, the end-side insert has the most prominent position on the upper front part of the auger drum, thus enabling it to act efficiently on crops leaning against the side wall.

[0021] In this invention, preferably, the cylinder device is provided in a state that is laterally outer than the sidewall and protrudes upward more than the upper surface of the sidewall when viewed from the side, and the maximum protrusion position of the end-side insert corresponds to the area of ​​the cylinder device protruding upward from the sidewall.

[0022] If the harvested stalks are cut from the side wall outwards, they may get stuck on the cylinder device. Therefore, in this structure, since the maximum protrusion of the end-side pusher corresponds to the area of ​​the cylinder device protruding upwards from the side wall, it is easy to push the crop that may get stuck on the cylinder device backwards.

[0023] In this invention, preferably, the maximum protruding position of the end-side insert is located on an imaginary line connecting the base of the protruding portion of the cylinder device protruding upward from the side wall and the rotation center of the auger drum when viewed from the side.

[0024] The front end of the crop leaning towards the sidewall is located on the lateral outer side of the sidewall, while the root side is located on the lateral inner side. Therefore, in this structure, since the crop leaning towards the sidewall is likely to get stuck on the cylinder device, the action is precisely applied to the crop stuck on the cylinder device, thus enabling good insertion.

[0025] In this invention, preferably, a plurality of the said end-side inserts are provided.

[0026] According to this structure, crop feeding can be reliably carried out with fewer unexpected issues.

[0027] In this invention, preferably, a rotating reel for pushing the crop backward is provided above the harvesting section. The rotating reel includes: left and right reel frames; a support rod that spans the left and right reel frames; and a plurality of spring teeth that are spaced apart from the support rod. The end-side pusher closest to the sidewall is positioned closer to the sidewall than the spring teeth closest to the sidewall.

[0028] There are areas at the left and right ends of the rotating reel where the tweezers are difficult to operate. Therefore, in this structure, an end-side feeder is provided at a position closer to the sidewall than the tweezers closest to the sidewall. With this configuration, even in areas where the tweezers are difficult to operate, the end-side feeder can be used to feed the crop.

[0029] In this invention, preferably, a posture holding mechanism is provided on one side of the rotating reel in the left-right direction to maintain the spring tooth in a drooping posture, and an end side feeder is provided on the side of the transverse conveying auger on which the posture holding mechanism is provided.

[0030] According to this structure, when the reel rotates, the support rod also rotates as a whole, but the spring teeth maintain a drooping posture through the action of the posture holding mechanism. This allows for efficient stalk feeding. The posture holding mechanism is located at one end of the reel in the left-right direction. Because of this mechanism, areas where the spring teeth cannot be positioned are created. Therefore, by providing an end-side feeder on the side where the posture holding mechanism is located, the crop can be fed backwards with minimal omissions.

[0031] In this invention, preferably, the number of the feeders corresponding to the inlet of the crop conveying device is greater than the number of the feeders on the end side.

[0032] According to this structure, compared to the end portion of the transverse conveying auger, the crops are clustered and exist in a dense state at the portion corresponding to the inlet of the crop conveying device. Therefore, by having a larger number of feeders at this portion, the crops can be fed backwards more efficiently.

[0033] In this invention, preferably, the inner circumferential side of the auger drum includes: a support shaft that supports the inner end of the insert; a retaining portion that is externally supported on the support shaft and supports the inner circumferential end of the insert; and a connecting member that, while the insert is held by the retaining portion, is fastened along the axial direction of the support shaft to fix the insert to the retaining portion; the connecting members at adjacent retaining portions along the axial direction overlap each other in the axial direction.

[0034] According to this structure, the inner end of the dial-up body is supported on the support shaft via a retaining part, and the front end protrudes outward from the auger drum. One end of the retaining part is externally supported on the support shaft, and the dial-up body is held at the other end of the retaining part. Furthermore, the dial-up body is fixed by fastening the retaining part using a connecting member.

[0035] Since the connecting parts are fastened from both sides in the direction of the shaft core, they protrude further in the direction of the shaft core compared to the parts that are externally supported on the support shaft. However, since the connecting parts at adjacent retaining parts overlap each other in the direction of the shaft core, even when multiple inserts are supported on the support shaft, the retaining parts can be arranged as close as possible to each other in the direction of the shaft core.

[0036] In this invention, preferably, the portion of the retaining part that is externally supported on the base end side of the support shaft is configured to be narrower along the shaft axis direction than the portion of the retaining part that is connected by the connecting member.

[0037] According to this structure, since the portion of the external support on the base end of the support shaft is relatively narrow, even when multiple retaining parts are arranged along the shaft core direction, they can be compactly configured along the shaft core direction. Attached Figure Description

[0038] Figure 1 This is an overall side view of a combine harvester.

[0039] Figure 2 This is a top view of the harvest section.

[0040] Figure 3 yes Figure 2 Sectional view along line III-III.

[0041] Figure 4 yes Figure 2 Sectional view along line IV-IV.

[0042] Figure 5 This is an unfolded diagram of the dragon drum.

[0043] Figure 6 This is a cross-sectional top view of the transverse conveying auger.

[0044] Figure 7 This is a top view of the harvesting section in another embodiment.

[0045] Explanation of reference numerals in the attached figures

[0046] 8 Harvest Department

[0047] 9. Crop conveying devices

[0048] 9a Entrance

[0049] 11 Rotating reel

[0050] 15. Reel Frame

[0051] 16 Support rods

[0052] 17 spring teeth

[0053] 18 Attitude holding mechanism

[0054] 22 Harvest Section Framework

[0055] 26, 27 Sidewalls

[0056] 29 Lateral Conveyor Screw

[0057] 36. Twisted Dragon Drum

[0058] 37 dial-in body

[0059] 37a End-side insert

[0060] 38 Helical blades

[0061] 48 Support shaft

[0062] 50. Maintaining section

[0063] 50a Basement side portion

[0064] 50b Connection Part

[0065] 54 Connecting parts

[0066] Q1, Q2 Front-end rotation trajectory Detailed Implementation

[0067] Hereinafter, based on the accompanying drawings, an embodiment of the harvester of the present invention will be applied to a full-feed combine harvester as an example of a harvester. Note that in the following description, the direction of arrow "F" is designated as "front of the machine body", and the direction of arrow "B" is designated as "rear of the machine body" (see reference). Figure 1 , Figure 3 , Figure 4 Set the direction of arrow "L" to "left side of the aircraft" and the direction of arrow "R" to "right side of the aircraft" (see reference). Figure 2 , Figure 6 ).

[0068] like Figure 1 As shown, the combine harvester is equipped with an axial-flow threshing unit 3 and a grain storage bin 4 arranged side-by-side on a traveling body 2 having a pair of left and right tracked traveling devices 1. A driving unit 5 is located in front of the grain storage bin 4. A grain discharge device 6 is provided to discharge the grains stored in the grain storage bin 4 to the outside.

[0069] The machine body has a harvesting section 8 at the front for harvesting upright rice stalks, one example of a crop. At the rear of the harvesting section 8, there is an intermediate conveying trough 9, which serves as a crop conveying device, transporting the harvested rice stalks to the rear of the machine body. The harvesting section 8 and the intermediate conveying trough 9 are supported at the front of the threshing device 3 in a manner that allows them to swing up and down together around a horizontal axis P1. The configuration allows the harvesting section 8 and the intermediate conveying trough 9 to swing up and down together around the horizontal axis P1 via the extension and retraction of a hydraulic cylinder 10. Above the harvesting section 8, a rotating reel 11 is provided for pushing the upright crop backward.

[0070] Harvesting Department 8 is able to Figure 1 The system operates between a cutting position, which descends to near the ground as shown, for cutting operations, and an ascending position, not shown, where the system rises significantly upwards around the horizontal axis P1.

[0071] The rotating reel 11 is cantilevered by a pair of left and right support arms 12 extending forward from the rear upper part of the harvesting section 8. The left and right support arms 12 are supported so that they can swing upward with their rear ends as fulcrums, and are configured to be driven to rise and fall by a hydraulic cylinder 13 (hereinafter referred to as the reel cylinder) which is connected to the middle of its front and rear parts.

[0072] like Figure 2 , Figure 3 , Figure 4 As shown, the rotating reel 11 includes a drive shaft 14 extending in the left-right direction and supported by left and right support arms 12, left and right reel frames 15, multiple support rods 16 extending in the left-right direction, multiple spring teeth 17 extending downward, and a posture holding mechanism 18 that maintains the spring teeth 17 in a drooping posture.

[0073] The drive shaft 14 is configured such that its left and right ends are rotatably supported at the front ends of the left and right support arms 12, and are driven to rotate by power transmitted from the machine body. The left and right reel frames 15 are roughly star-shaped with five protrusions. Support rods 16 are mounted on the five tops of the left and right reel frames 15, respectively, in the left-right direction. Each support rod 16 is rotatably supported on the left and right reel frames 15. Multiple spring teeth 17 are supported on the support rods 16 in a left-right direction arrangement.

[0074] The attitude holding mechanism 18 is located near the left reel frame 15. The attitude holding mechanism 18 includes a generally star-shaped auxiliary rotating frame 20 and five connecting rods 21 respectively disposed on the top of the auxiliary rotating frame 20 and connecting each top of the auxiliary rotating frame 20 to a support rod 16. When the left and right reel frames 15 are rotated about a transverse rotating axis P2, the auxiliary rotating frame 20 is rotated about a transverse axis P3 offset from the rotating axis P2. As a result, the spring tooth 17 rotates about the rotating axis P2 while maintaining a downward orientation.

[0075] The harvesting section 8 has a harvesting section frame 22, which is a frame structure that supports the entire harvesting section 8. The harvesting section frame 22 has a back plate 24 forming the back, a conveying bottom plate 25 forming the bottom, and left and right side walls 26 and 27 forming the left and right sides on a frame 23 made of square tubes or angle steel with an L-shaped cross section.

[0076] The support arm 12 of the rotating reel 11 is supported on the upper rear part of the harvesting section 8. The reel cylinder 13 is positioned laterally outward than the side wall 26 and protrudes upward more than the upper surface of the side wall 26 when viewed from the side. The lower part of the reel cylinder 13 is supported on the side wall 26 via a bracket (not shown).

[0077] A pusher-type cutting device 28 is provided along the front end of the conveyor base plate 25, spanning the left and right side walls 26 and 27. A transverse conveying auger 29 is installed across the left and right side walls 26 and 27 to gather and convey the cut straw toward the middle side of the machine body in the transverse width direction.

[0078] The intermediate conveying trough 9 is constructed by equipping a conveyor 31 inside a conveying box 30, which is generally rectangular in shape. The conveyor 31 includes a driving rotating body 32 and a driven rotating body 33 that rotate around a horizontal axis, a pair of left and right conveying chains 34 wound around them, and a plurality of locking components 35 that span and connect the left and right pair of conveying chains 34. The configuration is such that the crop that has been transversely conveyed and transferred by the transverse conveying auger 29 is lifted and conveyed along the bottom surface of the conveying box 30 and fed into the front end of the threshing device 3 by the locking components.

[0079] The intermediate conveyor trough 9 is positioned slightly to the left of the left center of the machine body, passing through the left side of the driving section 5. The harvesting section 8 has a left-right width approximately the same as the left-right width of the driving body 2, and is connected to the intermediate conveyor trough 9 in a state of being offset to the right relative to the intermediate conveyor trough 9.

[0080] Next, the transverse conveyor auger 29 will be described.

[0081] The transverse conveying auger 29 has a transverse cylindrical auger drum 36 and a rod-shaped feeding body 37. The feeding body 37 rotates as it moves in and out of the auger drum 36, thereby feeding the harvested rice stalks backward.

[0082] like Figure 3 , Figure 4 , Figure 6 As shown, the auger drum 36 is formed into a large-diameter cylindrical shape. Spiral blades 38 for conveying straw are provided on the outer periphery of the auger drum 36. The auger drum 36 rotates around its transverse axis... Figure 3 The spiral blades 38 rotate counterclockwise. They are positioned on the left and right sides of the area facing the inlet 9a of the intermediate conveying trough 9. The spiral blades 38, in conjunction with the rotation of the auger drum 36, laterally convey the cut straw towards the area facing the inlet 9a of the intermediate conveying trough 9. In other words, the right-side spiral blade 38 conveys the cut straw to the left, and the left-side spiral blade 38 conveys the cut straw to the right.

[0083] In the transverse conveying auger 29, multiple inserters 37 are distributed at different positions in the left and right directions. That is, as shown... Figure 6 As shown, multiple feed bodies 37 are provided in the part of the transverse conveying auger 29 corresponding to the inlet 9a of the intermediate conveying trough 9 and the right end part of the transverse conveying auger 29 which is one side in the left and right direction.

[0084] In the transverse conveying auger 29, in the portion corresponding to the inlet 9a of the intermediate conveying trough 9, five or more guide bodies 37 are provided with different circumferential phases. That is, six guide bodies 37 (hereinafter referred to as inlet-side guide bodies 37a) are provided on the auger drum 36 in the area facing the inlet 9a of the intermediate conveying trough 9, with each guide body 37 staggered by 60 degrees in phase along the circumference. To further explain, the inlet-side guide bodies 37a are arranged in groups of two guide bodies 37 that are adjacent in the same circumferential phase position, with five or more groups, specifically six groups, totaling twelve bodies, with different circumferential phases.

[0085] Four pusher bodies 37 (hereinafter referred to as end-side pusher bodies 37b) are provided on the auger drum 36 at a 90-degree phase offset along the circumference, located on the right end side portion of the transverse conveying auger 29.

[0086] like Figure 6As shown, cover plates 39 and 40 are fixedly installed inside the auger drum 36 near its left and right ends. Inside the auger drum 36, a pair of intermediate support plates 41 and 42 are fixedly connected at intervals. The rotating shaft 43 is supported by the right cover plate 39 and the right intermediate support plate 41 in a manner that allows it to rotate around the transverse axis P4. The connecting flange 43a, which is keyed to the rotating shaft 43, is bolted to the right cover plate 39, and the rotating shaft 43 is integrally connected to the auger drum 36.

[0087] On the left sidewall 27, a fixed support shaft 44 is connected and fixed on the same axis as the rotating support shaft 43. The fixed support shaft 44 is externally fitted with the left cover plate 40 of the auger drum 36 via a bearing 45 in a rotatable manner. On the left middle support plate 42, a relay shaft 46 is rotatably supported via a bearing on the same axis as the rotating support shaft 43.

[0088] On the right side of the fixed support shaft 44, a first eccentric support shaft 48 is provided as a support shaft at an eccentric position relative to the fixed support shaft 44 via a support bracket 47. The right end of the first eccentric support shaft 48 is supported on the relay shaft 46 in an eccentric state via a support bracket 49. The fixed support shaft 44, the first eccentric support shaft 48, and the relay shaft 46 are connected together in a state where relative rotation is prevented. Therefore, even if the auger drum 36 rotates, the first eccentric support shaft 48 maintains the same position when viewed from the side.

[0089] An inlet-side insert 37a is supported on the outer periphery of the first eccentric support shaft 48 via a retaining portion 50. The inlet-side insert 37a is supported in a manner that allows it to rotate about the transverse axis P5 of the first eccentric support shaft 48. Figure 5 As shown, regarding the plurality of inlet-side dial-up bodies 37a, if the end in the axis direction is designated as the first, the plurality of inlet-side dial-up bodies 37a are arranged in a state where their phases are successively different as they face the other end in the axis direction. Furthermore, the seventh inlet-side dial-up body 37a from the end in the axis direction is in the same phase as the first inlet-side dial-up body 37a, and the subsequent ones are arranged in a state where two of each are in the same phase. The twelve inlet-side dial-up bodies 37a are configured to be guided to slide outward from the outer periphery of the auger drum 36 by sliding on the sliding guide body 51 respectively.

[0090] The retaining portion 50 is externally supported on the first eccentric support shaft 48 and supports the inner peripheral end of the inlet-side insert 37a. The base end portion 50a of the retaining portion 50 is externally mounted on the first eccentric support shaft 48 and is supported in a manner that allows relative rotation. The retaining portion 50 retains the inner peripheral end of the inlet-side insert 37a in an extension portion that extends radially outward from the base end portion 50a.

[0091] In the extension of the retaining portion 50, a recess 52 is formed in a radially extending state for the inner end of the inlet-side insert 37a to be inserted. With the inlet-side insert 37a inserted into the recess 52, a connecting member 54 consisting of bolts and nuts is installed on the retaining portion 50 and the inlet-side insert 37a, passing through them in the axial direction of the first eccentric support shaft 48.

[0092] By installing and tightening the connector 54, the inlet-side push-in body 37a is fixed to the retaining part 50. The part tightened by the connector 54 corresponds to the connecting part 50b.

[0093] like Figure 6 As shown, the base end portion 50a of the retaining portion 50 is narrower in the axial direction than the connecting object portion 50b fastened by the connecting member 54. Furthermore, the retaining portions 50 are arranged close to each other in the axial direction, and the adjacent connecting members 54 are overlapped in the axial direction.

[0094] On the right side of the relay shaft 46, a second eccentric support shaft 58 is provided at an eccentric position relative to the relay shaft 46 via a support bracket 57. The right end of the second eccentric support shaft 58 is supported eccentrically on the rotating support shaft 43 via a support bracket 59. The support bracket 59 is fixedly connected to the second eccentric support shaft 58 and is supported on the rotating support shaft 43 in a rotatable manner. Therefore, similar to the first eccentric support shaft 48, even if the auger drum 36 rotates, the second eccentric support shaft 58 maintains the same position when viewed from the side.

[0095] On the outer periphery of the second eccentric support shaft 58, an end-side insert 37b is mounted via a retaining portion 50 in a manner that allows it to rotate about the shaft core P6 along the second eccentric support shaft 58. The four end-side inserts 37b are configured to be guided to slide outwards from the outer periphery of the auger drum 36 by sliding guides 51 respectively provided on the auger drum 36. The four end-side inserts 37b are arranged at intervals along the shaft core direction in the region to the right of the first eccentric support shaft 48. The support structure of the end-side inserts 37b relative to the second eccentric support shaft 58 is the same as that of the inlet-side insert 37a.

[0096] like Figure 2 and Figure 3 As shown, the first eccentric support shaft 48 and the second eccentric support shaft 58 are positioned at different locations in the circumferential direction of the rotating support shaft 43 when viewed from the side. In the harvesting operation posture with the harvesting section 8 close to the ground, the first eccentric support shaft 48 is located on the front and slightly below the rotating support shaft 43, and the second eccentric support shaft 58 is located on the front and slightly above the rotating support shaft 43.

[0097] like Figure 4As shown, at the location of the auger drum 36 corresponding to the mounting position of the insert body 37, four mounting holes 60 with relatively large openings are formed for installing or removing the insert body 37. These mounting holes 60 are closed by removable covers 61. The covers 61 are respectively fixed to the auger drum 36 by multiple bolts 62.

[0098] Regarding the transverse conveying auger 29, if the drive rotating shaft 43 rotates and causes the auger drum 36 to... Figure 3 When the pivot P4 of the central rotating support shaft 43 rotates counterclockwise, the inlet-side insert 37a rotates haphazardly around the pivot P5 of the first eccentric support shaft 48. Additionally, the end-side insert 37b rotates haphazardly around the pivot P6 of the second eccentric support shaft 58.

[0099] At this time, the distance between the sliding guide 51 and the first eccentric support shaft 48 and the second eccentric support shaft 58 on the circumference of the auger drum 36 changes according to the rotation phase, and each inserter 37 rotates while moving in and out of the auger drum 36.

[0100] As a result, the front rotation trajectories of the inlet-side feeder 37a and the end-side feeder 37b, which rotate with the auger drum 36, are different when viewed from the side of the machine body. That is, feeders 37 are provided at different positions in the left and right directions of the transverse conveying auger 29, and the front rotation trajectories Q1 and Q2 of the front ends, which rotate with the auger drum 36, are different when viewed from the side of the machine body depending on their positions.

[0101] If explained, then as follows Figure 3 As shown, the maximum protruding position M1 of the front end rotation trajectory Q1 of the inlet-side feeder 37a from the outer periphery of the auger drum 36 is located on the lower front side of the auger drum 36. With this configuration, the crop being transversely conveyed by the transverse conveying auger 29 is efficiently fed into the inlet a of the intermediate conveying trough 9 by means of the inlet-side feeder 37a.

[0102] On the other hand, such as Figure 4 As shown, the maximum protruding position M2 of the front end rotation trajectory Q2 of the end-side dialing body 37b on the outer periphery of the auger drum 36 is located upstream in the rotation direction in a region that is higher than the rotating shaft core P4 of the auger drum 36. This is compared to the maximum protruding position M1 of the front end rotation trajectory Q1 of the inlet-side dialing body 37a.

[0103] like Figure 4As shown, with the harvesting section 8 lowered to the cutting position, the maximum protrusion M2 of the end-side feeder 37b is located higher than the rotation center of the auger drum 36, and within the rotation range from the front end to the upper end of the auger drum 36. To elaborate further, the maximum protrusion M2 of the end-side feeder 37b is located in the area where the reel cylinder 13 protrudes upwards from the side wall 26, and is situated on the imaginary line Z connecting the base of the protruding portion of the reel cylinder 13 protruding upwards from the side wall 26 when viewed from the side.

[0104] With this configuration, even if the crop located at the right end of the transverse conveying auger 29 falls to the transverse outside, leans against the upper side of the side wall, and gets stuck on the reel cylinder 13 to form a pile, the crop can still be effectively reeled in.

[0105] [Other Implementation Methods]

[0106] (1) In the above embodiment, the end-side insert 37b closest to the sidewall is located further away from the sidewall 26 than the spring tooth 17 closest to the sidewall 26, but if Figure 7 As shown, the end-side insert 37b closest to the sidewall 26 can also be positioned closer to the sidewall 26 than the spring tooth 17 closest to the sidewall.

[0107] (2) In the above embodiment, the maximum protruding position M2 of the end side insert 37b is located in the area where the reel cylinder 13 protrudes upward from the side wall 26, and is located on the imaginary line Z connecting the base position of the protruding part of the reel cylinder 13 protruding upward from the side wall 26 when viewed from the side. However, this structure can be replaced by the configuration described in (2-1)(2-2)(2-3)(2-4)(2-5) below.

[0108] (2-1) The maximum protruding position M2 of the end side insert 37b is located in the part that is biased towards the downstream or upstream side of the drum rotation direction relative to the imaginary line Z.

[0109] (2-2) The maximum protruding position M2 of the end side feeder 37b is located in the part of the structure that deviates from the area protruding upward from the feeder cylinder 13 from the side wall 26.

[0110] (2-3) The structure of the part where the maximum protruding position M2 of the end side insert 37b is located within the rotation range of the front end position and the upper end position of the self-crossing auger drum 36.

[0111] (2-4) The maximum protruding position M2 of the end side insert 37b is located at a position lower than the rotation center of the auger drum 36.

[0112] (2-5) The structure located downstream in the rotation direction compared to the maximum protrusion position M2 of the end-side insert 37b and the maximum protrusion position M1 of the inlet-side insert 37a.

[0113] (3) In the above embodiment, a structure in which the connecting members 56 of the retaining part 50 overlap each other in the axis direction is adopted, but a structure in which the connecting members 56 do not overlap in the axis direction may also be adopted.

[0114] (4) In the above embodiment, the base end side portion 50a of the retaining portion 50 is configured to be narrower in the axial direction than the connecting object portion 50b, but the base end side portion 50a of the retaining portion 50 may also be configured to have the same width as or be wider than the connecting object portion 50b.

[0115] Industrial applicability

[0116] This invention can be applied to harvesters such as combine harvesters and corn harvesters.

Claims

1. A harvester, characterized in that, It is equipped with: a harvesting section for harvesting crops; and a crop conveying device for conveying the harvested crops to the rear of the machine. The harvesting section includes: a harvesting section frame having left and right side walls; and a transverse conveying auger that is driven to rotate across the left and right side walls to convey crops along the transverse width of the machine body towards the inlet of the crop conveying device. The transverse conveying auger includes: a cylindrical auger drum with spiral blades for crop transfer on its outer periphery, which rotates around a transverse axis; and a plurality of feeders that move in and out of the auger drum while rotating together with it, thereby feeding the crop toward the rear of the machine. In the transverse conveying auger, the plurality of feed bodies are distributed at different positions in the left and right directions, with different front-end rotation trajectories when viewed from the side of the machine body, as the auger drum rotates. The plurality of dial-up contacts are configured with different phases in the circumferential direction. In the plurality of said inserts, on at least one side of the transverse conveying auger in the left-right direction, the maximum protrusion position of the front end of the end-side insert located at the end side is set to be higher than the rotation center position of the auger drum from the outer periphery of the auger drum. The cylinder device is positioned laterally outward than the sidewall and protrudes upward more than the upper surface of the sidewall when viewed from the side. The maximum protruding position of the end-side insert corresponds to the area where the cylinder device protrudes upward from the side wall. The maximum protruding position of the end-side insert, when viewed from the side, is located on an imaginary line connecting the base of the protruding portion of the cylinder device protruding upward from the side wall to the rotation center of the auger drum.

2. The harvester as described in claim 1, characterized in that, The maximum protruding position of the end-side feeder is located upstream in the rotation direction compared to the maximum protruding position of the feeder corresponding to the inlet of the crop conveying device.

3. The harvester as described in claim 1 or 2, characterized in that, The maximum protruding position of the end-side insert is located within the rotation range spanning the front and upper positions of the auger drum.

4. The harvester as described in claim 1 or 2, characterized in that, It has multiple end-side inserts.

5. The harvester as described in claim 4, characterized in that, A rotating reel is provided above the harvesting section to push the crop backward. The rotating reel includes: left and right reel frames; a support rod that spans across the left and right reel frames; and a plurality of spring teeth that are spaced apart from the support rod. The end-side insert closest to the sidewall is positioned closer to the sidewall than the spring tooth closest to the sidewall.

6. The harvester as described in claim 5, characterized in that, On one side of the rotating reel in the left-right direction, there is a posture holding mechanism to keep the spring teeth in a drooping position. On one side of the transverse conveying auger where the attitude holding mechanism is set, the end side pusher is provided.

7. The harvester as described in claim 6, characterized in that, The number of feeders corresponding to the inlet of the crop conveying device is greater than the number of feeders on the end side.

8. The harvester as described in claim 1 or 2, characterized in that, The inner circumferential side of the auger drum includes: a support shaft that supports the inner end of the insert body; a retaining part that is externally supported on the support shaft and supports the inner circumferential end of the insert body; and a connecting member that, while the insert body is held by the retaining part, is fastened along the axial direction of the support shaft to fix the insert body to the retaining part. The connecting members at the adjacent retaining portions along the axis direction overlap each other in the axis direction.

9. The harvester as described in claim 8, characterized in that, The portion of the retaining part that is externally supported at the base end of the support shaft is configured to be narrower along the axis direction than the portion of the retaining part that is connected by the connecting member.

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