JP2022067274A - Harvester - Google Patents

Abstract

To solve the problem that it is desired that raking of crops by a rake body is suitably performed even when positions in the horizontal direction differ.SOLUTION: A harvesting part is provided with a crossfeed auger 29. The crossfeed auger 29 is provided with: a cylindrical auger drum rotating around a horizontal shaft core P4 in which screw blades 38 for crop transfer are provided on an outer periphery; and a plurality of rake bodies 37 which integrally rotate with the auger drum while advancing/retracting as the auger drum rotates and rake crops backward of a machine body. In the crossfeed auger 29, at different positions in the horizontal direction, the plurality of rake bodies 37 are arranged in dispersion in different states of end rotary orbits Q1, Q2 in a machine body lateral view at an end part rotating as the auger drum rotates.SELECTED DRAWING: Figure 4

Description

The present invention relates to a harvester such as a combine harvester or a corn harvester.

The harvester is equipped with a harvesting section for harvesting crops and a crop transporting device for transporting the harvested crops to the rear side of the machine. It is equipped with a horizontal feed auger that transports towards the entrance.

The lateral auger is equipped with a cylindrical auger drum and a plurality of scraping bodies that rotate integrally with the auger drum while moving out of the auger drum as the auger drum rotates and scrape the crop backwards. ing. The rotating shaft core of the scraping body and the rotating shaft core of the auger drum are eccentric, and the amount of protrusion of the scraping body from the auger drum is configured to change with rotation. In the past, the tip movement loci of a plurality of scraping bodies with respect to the auger drum were all configured to draw the same locus, and the front lower portion of the auger drum was projected most (for example). See Patent Document 1).

Japanese Unexamined Patent Publication No. 2017-158450

In the above-mentioned conventional configuration, the crop transferred to the vicinity of the entrance of the grain culm transport device can be satisfactorily scraped backward by the scraping body. However, at a location distant from the vicinity of the entrance of the crop transport device in the left-right direction, for example, there is a case where the crop is leaning against the side wall of the harvesting portion and staying there. There was a risk that a good scraping action could not be exerted on such crops.

Therefore, it has been desired that the crops can be squeezed well by the scraping body even if the positions in the left-right direction are different.

The characteristic configuration of the harvester according to the present invention includes a harvesting section for harvesting crops and a crop transporting device for transporting the harvested crops to the rear side of the machine body, and the harvesting section has left and right side walls for harvesting. The horizontal feed auger is provided with a section frame and a lateral feed auger that is rotationally driven over the left and right side walls to transport crops along the lateral width direction of the machine and transports the crop toward the entrance of the crop transport device. In addition, a spiral blade for transferring crops is provided on the outer peripheral portion, and the cylindrical auger drum that rotates around the horizontal axis core and the auger drum are integrated with the auger drum while moving out of the auger drum as the auger drum rotates. A plurality of scraping bodies that rotate and scrape the crop to the rear of the machine body are provided, and in the lateral feed auger, the plurality of scraping bodies rotate at different positions in the left-right direction as the auger drum rotates. It is a point that the tip rotation loci in the side view of the machine body at the tip portion are distributed and arranged in different states.

According to the present invention, the plurality of scraping bodies dispersedly arranged at different positions in the left-right direction in the lateral feed auger have different tip rotation trajectories in the side view of the machine body. For example, the method of scraping action is changed by making the tip rotation trajectories of the scraping body near the entrance of the crop transporting device and the scraping body at a location distant from the entrance of the crop transporting device in the left-right direction different from each other. It becomes possible to do. As a result, it is possible to make it easy to exert a good scraping action against the situation of the crop that changes due to the difference in the position in the left-right direction.

Therefore, in the lateral feed auger, even if the positions in the left-right direction are different, it is possible to make the crops squeeze well by the scraping body.

In the present invention, among the plurality of the scraping bodies, the auger drum in the tip rotation locus of the end side scraping body located on the end side on at least one side in the left-right direction of the lateral feed auger. It is preferable that the maximum protrusion position from the outer peripheral portion is set to be higher than the rotation center position of the auger drum.

According to this configuration, the end-side scraping body located on the left-right end side of the lateral feed auger can scrape the crop at a position where the maximum protrusion position is higher than the rotation center position of the auger drum. It is possible. As a result, for example, even a crop leaning on the side wall of the harvesting portion can easily exert a scraping action.

In the present invention, it is preferable that the maximum protruding position of the end-side scraping body is located on the upper side in the rotational direction than the maximum protruding position of the scraping body corresponding to the inlet of the crop transport device. Is.

The maximum protruding position in the scraping body corresponding to the entrance of the crop transporting device is provided at the lower front part of the auger drum so that the scraping into the crop transporting device can be performed well. The maximum protruding position of the body is provided on the upper side in the rotational direction than the maximum protruding position in the scraping body corresponding to the entrance, that is, at a higher position on the upper side from the lower front part of the auger drum. As a result, even a crop that leans against the side wall of the harvesting portion can easily exert a scraping action.

On the other hand, the end side culm is higher in the front part of the auger drum because the maximum protrusion position is located on the upper side in the rotation direction than the culm corresponding to the entrance of the crop transport device. Since it is in a position, it is easy to exert a scraping action even if the cut grain culm is in a standing position or a leaning position on the side wall.

In the present invention, it is preferable that the maximum protruding position of the end-side scraping body is located within the rotation range extending between the front end position and the upper end position of the auger drum.

According to this configuration, since the end-side scraping body has the maximum protruding position on the front upper side of the auger drum, it can efficiently act on the crop leaning on the side wall.

In the present invention, the cylinder device is provided in a state of being located laterally outward from the side wall and protruding upward from the upper surface of the side wall in a side view, and the maximum protruding position of the end side scraping body is set. It is preferable that the cylinder device corresponds to a region protruding upward from the side wall.

If the cut grain culm falls outward from the side wall, it may get caught in the cylinder device and stay there. Therefore, in this configuration, since the maximum protruding position of the end-side scraping body corresponds to the region where the cylinder device protrudes upward from the side wall, it is easy to scrape the crops that may be caught in the cylinder device backward.

In the present invention, the maximum protruding position of the end-side scraping body is a virtual connection between the base end position of the protruding portion where the cylinder device protrudes upward from the side wall and the rotation center of the auger drum in a side view. It is preferable that it is located on the line.

The crop that collapses on the side wall is located on the lateral outer side of the side wall on the tip side, but on the inner side in the left-right direction on the stock root side. Therefore, in this configuration, the crops that fall on the side wall act on the crops that are just caught in the cylinder device at the places where they are easily caught in the cylinder device, so that the scraping can be performed satisfactorily.

In the present invention, it is preferable that a plurality of the end-side scraping bodies are provided.

According to this configuration, it is possible to reliably scrape crops in a state where there are few omissions.

In the present invention, a rotary reel for scraping crops backward is provided in a state of being located above the harvesting portion, and the rotary reel is provided over the left and right reel frames and the left and right reel frames. A support bar and a plurality of tines provided at intervals on the support bar are provided, and the end-side scraping body closest to the side wall among the end-side scraping bodies is the most said side wall. It is preferable that the tine is provided closer to the side wall than the tine.

At the left-right end of the rotary reel, there is a region where tine is difficult to act. Therefore, in this configuration, the end side scraping body is provided at a position closer to the side wall than the tine closest to the side wall. With this configuration, the crop can be scraped by the end-side scraping body even in the region where the tine is difficult to act.

In the present invention, a posture holding mechanism for maintaining the tine in a downward hanging posture is provided on one side portion in the left-right direction of the rotary reel, and the end portion is provided on the side provided with the posture holding mechanism in the lateral feed auger. It is preferable that a side scraping body is provided.

According to this configuration, when the rotary reel rotates, the support bar also rotates integrally, but the Tyne maintains the downward hanging posture by the action of the posture holding mechanism. As a result, the culm can be squeezed well. The posture holding mechanism is provided at one end of the rotary reel in the left-right direction, and the presence of this posture holding mechanism creates a region in which a tine cannot be provided. Therefore, by providing the end side scraping body on the side where the posture holding mechanism is provided, the crop can be scraped backward with little leakage.

In the present invention, it is preferable that the number of the scraped bodies corresponding to the inlet of the crop transport device is larger than the number of the scraped bodies on the end side.

According to this configuration, the crops are gathered together and the crops exist in a dense state at the portion corresponding to the entrance of the crop transport device as compared with the portion on the end side of the lateral feed auger. Therefore, in this place, it is possible to efficiently scrape backward by increasing the number of scraping bodies.

In the present invention, on the inner peripheral side of the auger drum, a support shaft that supports the inner end portion of the scraped body and an inner peripheral end portion of the scraped body that is externally supported and supported by the support shaft are provided. It is provided with a holding portion for supporting and a fastener for fixing the scraped body to the holding portion by tightening the scraped body along the axis direction of the support shaft while the scraped body is held by the holding portion. It is preferable that the fasteners in the holding portions adjacent to each other in the axis direction overlap each other in the axis direction.

According to this configuration, the inner end of the scraped body is supported by the support shaft via the holding portion, and the tip side protrudes outward from the auger drum. One end of the holding portion is externally supported by the support shaft, and the scraping body is held on the other end side. Then, the holding portion is tightened by the fastener to fix the scraping body.

Since the fastener is fastened from both sides in the axial core direction, it is in a state of protruding in the axial core direction from the portion externally supported by the support shaft. However, since the fasteners in the adjacent holding portions overlap each other in the axis direction, the holding portions should be brought as close as possible along the axis direction even when a large number of scraped bodies are supported on the support shaft. It can be placed in a state of being.

In the present invention, the base end side portion of the holding portion that is fitted and supported by the support shaft is narrower in the axial core direction than the portion of the holding portion that is fastened by the fastener. It is preferable that it is configured to be.

According to this configuration, since the base end side portion that is externally supported by the support shaft is narrow, even if a plurality of holding portions are lined up in the axis direction, they are compactly deployed along the axis direction. It becomes possible.

It is an overall side view of a combine. It is a top view of the harvesting part. FIG. 2 is a cross-sectional view taken along the line III-III of FIG. FIG. 2 is a sectional view taken along line IV-IV of FIG. It is a development view of an auger drum. It is a cross-sectional plan view of a lateral feed auger. It is a top view of the harvest part of another embodiment.

Hereinafter, a case where the embodiment of the harvester according to the present invention is applied to an ordinary combine as an example of the harvester will be described with reference to the drawings. In the following description, the direction of the arrow "F" is the "front side of the aircraft", the direction of the arrow "B" is the "rear side of the aircraft" (see FIGS. 1, 3 and 4), and the direction of the arrow "L" is the "aircraft". The direction of "left side" and the arrow "R" is "right side of the aircraft" (see FIGS. 2 and 6).

As shown in FIG. 1, in this combine, an axial flow type threshing device 3 and a grain tank 4 for storing grains are arranged side by side on a traveling machine 2 provided with a pair of left and right crawler traveling devices 1. Has been done. The operation unit 5 is arranged in front of the grain tank 4. A grain discharging device 6 for discharging grains stored in the grain tank 4 to the outside is provided.

A harvesting section 8 for harvesting planted culms, which is an example of crops, is provided at the front of the machine. At the rear of the harvesting section 8, a feeder 9 is provided as a crop transporting device for transporting the harvested harvested grain culms to the rear side of the machine body. The harvesting section 8 and the feeder 9 are integrally supported by the front portion of the threshing device 3 so as to be vertically swingable around the horizontal axis P1. By expanding and contracting the hydraulic cylinder 10, the harvesting portion 8 swings around the horizontal axis P1 integrally with the feeder 9 so that it can be raised and lowered. Above the harvesting section 8, a rotary reel 11 for scraping the planted crops backward is equipped.

As shown in FIG. 1, the harvesting unit 8 extends over a cutting work position for descending to near the ground to perform cutting work, and an ascending position (not shown) that greatly rises upward around the horizontal axis P1. It can be raised and lowered.

The rotary reel 11 is cantileveredly supported by a pair of left and right support arms 12 extending forward from the rear upper portion of the harvesting portion 8. The left and right support arms 12 are supported so as to be swingable upward with the rear end as a fulcrum, and are configured to be driven and raised by a hydraulic cylinder 13 (hereinafter referred to as a reel cylinder) as a cylinder device connected to the front and rear intermediate portions. There is.

As shown in FIGS. 2, 3 and 4, the rotary reel 11 has a drive shaft 14 extending in the left-right direction and supported by the left and right support arms 12, left and right reel frames 15, and along the left-right direction. A plurality of extending support bars 16, a plurality of tines 17 extending downward, and a posture holding mechanism 18 for maintaining the tines 17 in a downward hanging posture are provided.

The left and right ends of the drive shaft 14 are rotatably supported by the front ends of the left and right support arms 12, respectively, and are rotationally driven by the power transmitted from the machine body side. The left and right reel frames 15 have a substantially star-shaped shape with five protrusions. Support bars 16 are hung across the five tops of the left and right reel frames 15 in the left-right direction. Each support bar 16 is rotatably supported by the left and right reel frames 15. The plurality of tines 17 are supported in a state of being arranged along the left-right direction on the support bar 16.

The posture holding mechanism 18 is arranged in the vicinity of the reel frame 15 on the left side. The posture holding mechanism 18 is provided with an auxiliary rotation frame 20 having a substantially star shape and each of the five tops of the auxiliary rotation frame 20, and a link connecting each top of the auxiliary rotation frame 20 and each support bar 16 respectively. 21 and are provided. When the left and right reel frames 15 are rotationally driven around the horizontal rotary shaft core P2, the auxiliary rotary frame 20 is rotationally driven around the horizontal shaft core P3 that is displaced from the rotary shaft core P2. As a result, the tine 17 rotates and moves around the rotation axis P2 while maintaining the downward posture.

The harvesting unit 8 includes a harvesting unit frame 22 composed of a framework structure that supports the entire harvesting unit 8. The harvesting section frame 22 has a back plate 24 forming a back surface, a transport deck 25 forming a bottom surface, and left and right side walls 26 forming left and right side surfaces, to a frame body 23 connecting a square pipe, an angle material having an L-shaped cross section, and the like. It has 27 mag.

The support arm 12 of the rotary reel 11 is supported on the rear upper portion of the harvesting portion 8. The reel cylinder 13 is provided so as to be located laterally outward from the side wall 26 and to project upward from the upper surface of the side wall 26 in a side view. The lower part of the reel cylinder 13 is supported by the side wall 26 via a bracket (not shown).

A clipper-type cutting device 28 is provided along the front end of the transport deck 25 so as to extend to the left and right side walls 26 and 27. A lateral feed auger 29 for collecting and transporting the cut grain culms toward the middle side in the lateral width direction of the machine body is erected over the left and right side walls 26 and 27.

The feeder 9 is configured by equipping a conveyor 31 inside a transport case 30 formed in a substantially square cylinder shape. The conveyor 31 is horizontally connected over the drive rotating body 32 and the driven rotating body 33 that rotate around the horizontal axis core, the pair of left and right transport chains 34 wound around them, and the pair of left and right transport chains 34. It is provided with a plurality of locking members 35. The crops that have been laterally fed and delivered by the laterally fed auger 29 are configured to be scraped up and transported along the bottom surface of the transport case 30 by a locking member and thrown into the front end of the threshing device 3.

The feeder 9 is provided at a position deviated to the left from the center of the left and right sides of the machine so as to pass through the left side of the driving unit 5. The harvesting portion 8 has a left-right width substantially the same as the left-right width of the traveling machine 2, and is connected to the feeder 9 in a state of being eccentric to the right side.

Next, the lateral feed auger 29 will be described.
The laterally feed auger 29 includes a laterally cylindrical auger drum 36 and a rod-shaped scraping body 37 that rotates integrally while moving out of the auger drum 36 as the auger drum 36 rotates to scrape the cut grain culm backward. , Is equipped.

As shown in FIGS. 3, 4, and 6, the auger drum 36 has a large diameter and is formed in a cylindrical shape. A spiral blade 38 for transferring a grain culm is provided on the outer peripheral portion of the auger drum 36. The auger drum 36 rotates around the horizontal axis in the counterclockwise direction of FIG. The spiral blades 38 are provided on both the left and right sides of the region facing the inlet 9a of the feeder 9. As the spiral blade 38 and the auger drum 36 rotate, the cut grain culm is laterally forwarded and transferred toward the region facing the inlet 9a of the feeder 9. That is, the spiral blade 38 on the right side is configured to transfer the cut grain culm to the left, and the spiral blade 38 on the left side is configured to transfer the cut grain culm to the right.

In the lateral feed auger 29, a plurality of scraping bodies 37 are dispersedly arranged at different positions in the left-right direction. That is, as shown in FIG. 6, the scraping body 37 is a portion of the lateral feed auger 29 corresponding to the inlet 9a of the feeder 9, and a portion on the right side of the lateral feed auger 29 as one side in the left-right direction. Each of them has more than one.

The portion of the lateral feed auger 29 corresponding to the inlet 9a of the feeder 9 is provided with five or more scraping bodies 37 having different phases in the circumferential direction. That is, six scraping bodies 37 (hereinafter referred to as inlet-side scraping bodies 37a) provided in the region facing the inlet 9a of the feeder 9 are provided in a state where the phases differ by 60 degrees in the circumferential direction with respect to the auger drum 36. Has been done. Further, to explain, the inlet side scraping body 37a has two scraping bodies 37 adjacent to each other at positions in the same phase in the circumferential direction as one set, and five or more sets in a state where they have different phases in the circumferential direction, specifically. There are 6 sets, 12 in total.

The scraping body 37 (hereinafter referred to as the edge-side scraping body 37b) provided on the right end side portion of the lateral feed auger 29 is 4 in a state where the phases differ by 90 degrees in the circumferential direction with respect to the auger drum 36. The book is provided.

As shown in FIG. 6, the lid plates 39 and 40 are fixedly installed inside the auger drum 36 in the vicinity of the left and right ends. A pair of intermediate support plates 41 and 42 are fixedly connected to the inside of the auger drum 36 at intervals. The rotary support shaft 43 is rotatably supported around the horizontal shaft core P4 by the lid plate 39 on the right side and the intermediate support plate 41 on the right side. The connecting flange 43a key-connected to the rotary support shaft 43 is bolted to the right lid plate 39, and the rotary support shaft 43 is integrally connected to the auger drum 36.

A fixed support shaft 44 is connected and fixed to the left side wall 27 in a state of being located on the coaxial core with the rotary support shaft 43. The fixed support shaft 44 rotatably supports the left lid plate 40 of the auger drum 36 via the bearing 45. The relay shaft 46 is rotatably supported on the left intermediate support plate 42 via a bearing while being located on the coaxial core with the rotary support shaft 43.

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

The inlet side scraping body 37a is supported on the outer peripheral portion of the first eccentric support shaft 48 via the holding portion 50. The inlet side scraping body 37a is rotatably supported around the lateral axis P5 of the first eccentric support shaft 48. As shown in FIG. 5, the plurality of inlet-side scraping bodies 37a are arranged in a state in which the phases are sequentially different toward the other end side in the axial core direction, assuming that one end portion in the axial core direction is the first. Then, the seventh inlet-side scraping body 37a from one end in the axial center direction is in phase with the first inlet-side scraping body 37a, and thereafter, two of them are sequentially provided in the same phase. .. Each of the twelve inlet-side scraping bodies 37a is slidably guided outward from the outer peripheral surface of the auger drum 36 by the sliding guide body 51 provided on the auger drum 36. It is configured.

The holding portion 50 is externally supported by the first eccentric support shaft 48, and also supports the inner peripheral end portion of the inlet side scraping body 37a. In the holding portion 50, the proximal end side portion 50a is externally fitted and mounted on the first eccentric support shaft 48, and is supported so as to be relatively rotatable. The holding portion 50 holds the inner peripheral end portion of the inlet side scraping body 37a in the extending portion extending radially outward from the base end side portion 50a.

In the extended portion of the holding portion 50, a recessed portion 52 into which the inner end portion of the inlet-side scraping body 37a is inserted and inserted is formed so as to extend along the radial direction. With the inlet-side scraping body 37a inserted into the recess 52, insert them into the holding portion 50 and the inlet-side scraping body 37a in the axial direction of the first eccentric support shaft 48 from the bolt and nut. Fastener 54 is attached.

By attaching and tightening the fastener 54, the inlet side scraping body 37a is fixed to the holding portion 50. The portion tightened by the fastener 54 corresponds to the fastener target portion 50b.

As shown in FIG. 6, in the holding portion 50, the base end side portion 50a is narrower in the axial core direction than the fastening target portion 50b by the fastener 54. The holding portions 50 are provided close to each other along the axis direction, and the adjacent fasteners 54 overlap each other along the axis direction.

On the right side of the relay shaft 46, a second eccentric support shaft 58 is provided at a position eccentric with respect to the relay shaft 46 via the support bracket 57. The right end of the second eccentric support shaft 58 is supported in a state of being eccentric with respect to the rotary support shaft 43 via the support bracket 59. The support bracket 59 is fixedly connected to the second eccentric support shaft 58 and is rotatably supported by the rotary support shaft 43. Therefore, the second eccentric support shaft 58 maintains the same position in the side view even when the auger drum 36 rotates, similarly to the first eccentric support shaft 48.

An end-side scraping body 37b is rotatably mounted around the shaft core P6 along the second eccentric support shaft 58 on the outer peripheral portion of the second eccentric support shaft 58 via the holding portion 50. Each of the four end-side scraping bodies 37b is slidably guided outward from the outer peripheral surface of the auger drum 36 by the sliding guide body 51 provided on the auger drum 36. It is configured in. The four end-side scraping bodies 37b are provided in a state of being lined up in a region on the right side of the first eccentric support shaft 48 at intervals in the axial center direction. The support structure of the end-side scraping body 37b with respect to the second eccentric support shaft 58 is the same as that of the inlet-side scraping body 37a.

As shown in FIGS. 2 and 3, the first eccentric support shaft 48 and the second eccentric support shaft 58 are provided at different positions in the circumferential direction of the rotary support shaft 43 in the side view. In the cutting work posture in which the harvesting portion 8 approaches the ground, the first eccentric support shaft 48 is located diagonally forward and downward with respect to the rotary support shaft 43, and the second eccentric support shaft 58 is the rotary support shaft 43. It is located diagonally upward to the front.

As shown in FIG. 4, four assembly holes 60 having large openings for assembling and removing the scraping body 37 are formed at locations corresponding to the mounting positions of the scraping body 37 in the auger drum 36. The assembly hole 60 is closed by a removable cover 61. The cover 61 is configured to be fixed to the auger drum 36 by a plurality of bolts 62, respectively.

In the lateral feed auger 29, when the rotary support shaft 43 is driven and rotated and the auger drum 36 rotates counterclockwise around the shaft core P4 of the rotary support shaft 43 in FIG. 3, the inlet side scraping body 37a becomes the first eccentric. It follows and rotates around the shaft core P5 of the support shaft 48. Further, the end-side scraping body 37b follows and rotates around the shaft core P6 of the second eccentric support shaft 58.

At this time, the distance between the sliding guide 51 provided on the peripheral surface of the auger drum 36 and the first eccentric support shaft 48 and the second eccentric support shaft 58 changes depending on the rotation phase, and each scraping body The 37 rotates while moving out of the auger drum 36.

As a result, the tip rotation locus of the inlet side scraping body 37a and the end side scraping body 37b at the tip portion that rotates with the rotation of the auger drum 36 is different from each other in the side view of the machine body. That is, the tip rotation loci Q1 and Q2 in the side view of the machine body at the tip portion that rotates with the rotation of the auger drum 36 are different from each other at different positions in the lateral feed auger 29 in the left-right direction. A scraping body 37 is provided.

As shown in FIG. 3, the maximum protrusion position M1 of the tip rotation locus Q1 of the tip rotation locus Q1 from the outer peripheral portion of the auger drum 36 in the inlet side scraping body 37a is located at the front lower side portion of the auger drum 36. are doing. With this configuration, the crops laterally fed by the laterally fed auger 29 are satisfactorily scraped and transported toward the inlet a of the feeder 9 by the inlet side scraping body 37a.

On the other hand, as shown in FIG. 4, the maximum protrusion position M2 of the tip rotation locus Q2 from the outer peripheral portion of the auger drum 36 in the end side scraping body 37b is a region above the rotation axis core P4 of the auger drum 36. In the inlet side scraping body 37a, the tip rotation locus Q1 is located on the upper side in the rotation direction than the maximum protrusion position M1.

As shown in FIG. 4, when the harvesting portion 8 is lowered to the cutting work position, the maximum protruding position M2 of the end side scraping body 37b is located at a position higher than the rotation center position of the auger drum 36. Moreover, it is located within the rotation range from the front end position to the upper end position of the auger drum 36. Further explaining, the maximum protruding position M2 of the end side scraping body 37b is a region where the reel cylinder 13 protrudes upward from the side wall 26, and the reel cylinder 13 in the region is viewed from the side. Is located on the virtual line Z connecting the base end position of the protruding portion protruding upward from the side wall 26 and the rotation center of the auger drum 36.

With this configuration, even if the crop located at the right end of the lateral feed auger 29 collapses laterally outward, leans on the upper side of the side closure, and is caught on the reel cylinder 13 and deposited. It can exert a good scraping action on this crop.

[Another Embodiment]
(1) In the above embodiment, the end-side scraping body 37b closest to the side wall of the end-side scraping body 37b is provided at a position farther from the side wall 26 than the tine 17 closest to the side wall 26. As shown in FIG. 7, the end side scraping body 37b closest to the side wall 26 may be provided at a position closer to the side wall 26 than the tine 17 closest to the side wall.

(2) In the above embodiment, the maximum protruding position M2 of the end-side scraping body 37b is a region where the reel cylinder 13 projects upward from the side wall 26, and the reel in the region in the side view. The configuration is such that the cylinder 13 is located on the virtual line Z connecting the base end position of the protruding portion protruding upward from the side wall 26 and the rotation center of the auger drum 36, but instead of this configuration, the following (2- 1) It may be configured as described in (2-2) (2-3) (2-4) (2-5).
(2-1) A configuration in which the maximum protruding position M2 of the end-side scraping body 37b is located closer to the lower side or the upper side in the drum rotation direction with respect to the virtual line Z.
(2-2) The configuration in which the maximum protruding position M2 of the end-side scraping body 37b is located outside the region where the reel cylinder 13 protrudes upward from the side wall 26.
(2-3) The configuration in which the maximum protruding position M2 of the end-side scraping body 37b is located outside the rotation range extending between the front end position and the upper end position of the auger drum 36.
(2-4) The configuration in which the maximum protruding position M2 of the end-side scraping body 37b is located at a position lower than the rotation center position of the auger drum 36.
(2-5) The configuration in which the maximum protruding position M2 of the end-side scraping body 37b is located on the lower side in the rotational direction than the maximum protruding position M1 of the inlet-side scraping body 37a.

(3) In the above embodiment, the fasteners 56 in the holding portion 50 overlap each other in the axis direction, but the fasteners 56 may not overlap in the axis direction.

(4) In the above embodiment, the proximal end side portion 50a of the holding portion 50 is configured to be narrower in the axial core direction than the fastening target portion 50b, but the proximal end side portion 50a of the holding portion 50 is the fastening target portion 50b. It may be configured to have the same width as or wider than that.

The present invention can be applied to harvesters such as combines and corn harvesters.

8 Harvesting part 9 Crop transporting device 9a Inlet 11 Rotating reel 15 Reel frame 16 Support bar 17 Tyne 18 Posture holding mechanism 22 Harvesting part frame 26, 27 Side wall 29 Side feed auger 36 Auger drum 37 Scraping body 37a End side scraping body 38 Spiral blade 48 Support shaft 50 Holding part 50a Base end side part 50b Fastening part 54 Fastener Q1, Q2 Tip rotation locus

Claims (12)

It is equipped with a harvesting section for harvesting crops and a crop transport device for transporting the harvested crops to the rear side of the machine.
The harvesting section has a harvesting section frame having left and right side walls, and the crop is rotationally driven over the left and right side walls to transport the crop along the width direction of the machine and to transport the crop toward the inlet of the crop transport device. With an auger,
The laterally feed auger is provided with a spiral blade for transferring crops on the outer peripheral portion thereof, and a cylindrical auger drum that rotates around a horizontal axis, and the auger drum that moves in and out of the auger drum as the auger drum rotates. It is equipped with multiple scraping bodies that rotate integrally with the auger drum and scrape the crop to the rear of the aircraft.
In the lateral feed auger, the plurality of scraping bodies are distributed and arranged at different positions in the left-right direction in a state where the tip rotation locus in the side view of the machine body is different at the tip portion that rotates with the rotation of the auger drum. Harvesting machine. The maximum from the outer peripheral portion of the auger drum in the tip rotation locus of the end-side scraping body located on the end side on at least one side of the lateral feed auger in the left-right direction among the plurality of scraping bodies. The harvester according to claim 1, wherein the protruding position is set to be higher than the rotation center position of the auger drum. The harvest according to claim 2, wherein the maximum protruding position of the end-side scraping body is located on the upper side in the rotation direction of the scraping body corresponding to the entrance of the crop transport device. Machine. The harvester according to claim 2 or 3, wherein the maximum protruding position of the end-side scraping body is located within a rotation range extending over the front end position and the upper end position of the auger drum. The cylinder device is provided in a state of being located laterally outward from the side wall and protruding upward from the upper surface of the side wall in a side view.
The harvester according to any one of claims 2 to 4, wherein the maximum protruding position of the end-side scraping body corresponds to a region in which the cylinder device protrudes upward from the side wall. The maximum protruding position of the end-side scraping body is located on a virtual line connecting the base end position of the protruding portion where the cylinder device protrudes upward from the side wall and the rotation center of the auger drum in a side view. The harvester according to claim 5. The harvester according to any one of claims 2 to 6, further comprising a plurality of end-side scraping bodies. It is equipped with a rotary reel that scrapes the crop backwards while being located above the harvest section.
The rotary reel is provided with a left and right reel frame, a support bar provided over the left and right reel frames, and a plurality of tines provided at intervals on the support bar.
The harvester according to claim 7, wherein the end-side scraping body closest to the side wall is provided at a position closer to the side wall than the tine closest to the side wall. .. A posture holding mechanism for maintaining the tine in a downward hanging posture is provided on one side of the rotary reel in the left-right direction.
The harvester according to claim 8, wherein the end side scraping body is provided on the side of the lateral feed auger provided with the posture holding mechanism. The harvester according to claim 9, wherein the number of the scraping bodies corresponding to the inlet of the crop transporting device is larger than the number of the scraping bodies on the end side. On the inner peripheral side of the auger drum, a support shaft that supports the inner peripheral end portion of the scraping body, and a holding portion that is externally supported by the support shaft and supports the inner peripheral end portion of the scraping body. , A fastener for fixing the scraped body to the holding portion by tightening the scraping body along the axis direction of the support shaft while the scraping body is held by the holding portion.
The harvester according to any one of claims 1 to 10, wherein the fasteners in the holding portions adjacent to each other in the axis direction overlap each other in the axis direction. The base end side portion of the holding portion that is externally supported by the support shaft is configured to be narrower in the axial core direction than the portion of the holding portion that is fastened by the fastener. The harvester according to claim 11.

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