JP6833968B1 - Harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harvester capable of continuing a good feeding action of a harvested grain culm by a horizontal feeding auger for a long period of time. SOLUTION: A lateral feed auger 18 for transferring a harvested grain auger in the width direction of the machine body, a cylindrical auger drum 27 rotating around a horizontal axis core, and an auger drum 27 rotating integrally while moving out of the auger drum as it rotates. A scraping body 28 for sending out the harvested auger, an insertion hole 47 through which the scraping body is inserted, and a sliding guide body 39 for sliding and guiding the scraped body so as to be able to move in and out, and a sliding guide body are provided. A stay 49 for attaching to the auger drum is provided, and the stay is provided inside the auger drum, and the insertion hole forming portion 53 in which the insertion hole 47 is formed in the sliding guide is formed by the auger drum rather than the stay. A protruding portion 57 that protrudes inward in the radial direction is provided. [Selection diagram] Fig. 4

Description

The present invention relates to a harvester configured to collect harvested crops in the lateral width direction of the machine by a lateral feed auger and transport them to the rear side by a feeder.

In a conventional combine harvester, which is an example of a harvester, conventionally, a sliding guide body that slides and guides the scraped body so as to move out of the auger drum is located on the inner peripheral surface side of the auger drum and is located on the inner peripheral side. In some cases, the side surface of the fixture was attached from the inner side in the radial direction while being sandwiched by a plate-shaped connecting member in the fixture unit. The sliding guide body is made of a synthetic resin material with less wear, and the connecting member is made of a metal material to firmly support it (see, for example, Patent Document 1).

JP-A-2017-158450

In the above-mentioned conventional configuration, when the tip of the scraping body in the lateral feed auger is worn due to long-term use, the scraping body penetrates inward in the radial direction from the sliding guide body and slides with the sliding guide body. In some cases, the auger drum may be out of motion and enter the inside of the auger drum so that it cannot be pulled out, and there is a risk that the good feeding action of the lateral feed auger cannot be continued. In particular, when the scraped body is bent in the circumferential direction in the middle due to the reaction force acting on the scraped body during the scraping action of the cut grain culm, there is a great risk of entry as described above. It was.

Therefore, there has been a demand for a harvester capable of continuing the good feeding action of the harvested culm by the horizontal feeding auger for a long period of time.

The characteristic configuration of the harvester according to the present invention is a lateral feed auger that transfers the harvested grain auger in the lateral width direction of the machine body, and a harvested grain auger that is transferred by the lateral feed auger and then sent out to the rear side of the machine body. A feeder is provided, and the lateral feed auger is provided with spiral blades for transferring grains on the outer periphery thereof, and a cylindrical auger drum that rotates around the horizontal axis core and the auger that rotates with the rotation of the auger drum. A scraping body that rotates integrally while moving out of the drum to send the harvested grain to the feeder, and an insertion hole provided at a position corresponding to the opening formed in the auger drum and through which the scraping body is inserted are formed. At the same time, a sliding guide body for sliding and guiding the scraping body from the auger drum and a stay for attaching the sliding guide body to the auger drum are provided, and the stay is provided. wherein provided on the inside of the auger drum, the insertion hole forming portion into which the insertion hole is formed out of the sliding guide member, and the projecting portion is provided which protrudes toward the radially inner side of the stay In the insertion hole, a narrow portion having a narrow width in the horizontal axis direction is formed in the middle portion in the radial direction, and the narrow portion is radially inward with respect to the outer peripheral portion of the auger drum. It is at the point where it is formed closer to.

According to the present invention, the scraping body moves in and out of the auger drum through the insertion hole formed in the sliding guide body. At that time, since the insertion hole forming portion in which the insertion hole is formed of the sliding guide body is provided with a protruding portion that protrudes inward in the radial direction, the radial direction of the insertion hole forming portion that guides the scraped body. The width of is increased.

As a result, even when the tip of the scraping body is worn, it is possible to prevent the scraping body from entering the radial inward side of the sliding guide body, and the lateral feed auger is used. It has become possible to continue the feeding action of good harvested grain culms for a long period of time.

Further, according to this configuration, since a narrow portion is formed in the middle portion in the radial direction of the insertion hole, it is easy to prevent the scraping body from passing through the insertion hole and entering the inward side in the radial direction. Can be made.

In the present invention, it is preferable that the narrow portion is formed at a position closer to the outer side in the radial direction than the stay.

According to this configuration, even if a strong reaction force due to the cut grain culm acts on the scraped body and it bends, it bends starting from the narrow part located on the outer side in the radial direction from the stay. Compared to the case where the stay is bent from the starting point, the bent portion is closer to the radial outer side, and this also reduces the possibility that the scraping body enters the radial inner side of the auger drum.

In the present invention, the sliding guide is provided with bolts mounted from the radial outer side of the auger drum at each of the locations located on both sides of the insertion hole in the circumferential direction of the auger drum. It is preferable that the bolt is fixed to the auger drum together with the radial inner side end portion of the bolt and the radial inner side end portion of the protruding portion is provided adjacent to each other.

According to this configuration, the sliding guide body is stably and firmly fixed by bolts on both sides in the circumferential direction of the insertion hole. Since the bolts are mounted along the radial direction of the auger drum, the front and rear bolts are arranged so that the inner ends in the radial direction approach each other. Then, the bolts and the protruding portions are provided close to each other so as not to interfere with each other. As a result, the protruding length of the protruding portion can be increased to the extent that it does not interfere with the bolt, and it is easy to prevent the scraping body from entering the radial inward side.

The characteristic configuration of the harvester according to the present invention is a lateral feed auger that transfers the harvested grain culm in the width direction of the machine body, and a harvested grain culm that is transferred by the horizontal feed auger and then sent out to the rear side of the machine body. Equipped with a feeder,
To the horizontal feed auger
A cylindrical auger drum that has a spiral blade for transferring culms on the outer circumference and rotates around the horizontal axis,
With the rotation of the auger drum, a scraping body that rotates integrally while moving out of the auger drum and sends the cut grain culm to the feeder.
Sliding provided at a position corresponding to the opening formed in the auger drum, an insertion hole through which the scraping body is inserted is formed, and the scraping body is slidably guided to move out of the auger drum. Guide body and
A stay for attaching the sliding guide body to the auger drum is provided.
The stay is provided inside the auger drum and
The insertion hole forming portion of the sliding guide body on which the insertion hole is formed is provided with a protrusion that protrudes inward in the radial direction of the auger drum from the stay.
A surrounding portion surrounding the protruding portion is formed on the stay.
A rising portion extending along the radial direction is formed at an end portion of the surrounding portion in the horizontal axis direction .

According to this configuration, when the stay is attached from the inside of the auger drum, the stay is attached so as to surround the protruding portion of the sliding guide by the surrounding portion, and is attached to the auger drum with a bolt or the like. At that time, the mounting work can be performed by having a rising portion formed at the lateral end portion of the surrounding portion. Since the rising portion extends along the radial direction, it is easy to grip and operate.

In the present invention, it is preferable that the stay is provided with a flat plate portion having a shape that bends along the circumferential direction of the auger drum, and one flat surface portion of the flat plate portion is provided with the rising portion.

According to this configuration, the flat plate portion of the stay can be manufactured by bending the flat plate-shaped member along the circumferential direction. Moreover, at that time, since the rising portion is formed on one flat surface portion of the flat plate portion, the rising portion is provided in a state of being connected to one flat surface portion. That is, by bending at the same time as the bending process, the rising portion can be formed without increasing the labor of the process.

It is the whole side view of the ordinary type combine. It is a partial cross-sectional plan view of the front part of the combine. It is a vertical sectional side view of a horizontal feed auger. It is a partial longitudinal side view of a lateral feed auger. It is a perspective view of a sliding guide body and a stay. It is a partial longitudinal side view of the horizontal feed auger of a reference embodiment.

Hereinafter, a case where the embodiment of the harvester according to the present invention is applied to a conventional combine as an example of the harvester will be described with reference to the drawings. In this embodiment, when the front-rear direction of the machine body is defined, it is defined along the machine body traveling direction in the working state. That is, the direction indicated by the reference numeral (F) in FIG. 1 is the front side of the machine body, and the direction indicated by the reference numeral (B) in FIG. 1 is the rear side of the machine body.

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. At the same time, the operation unit 5 is arranged in front of the grain tank 4. A feeder 6 for transporting a cutting grain culm is connected to the front portion of the threshing device 3 so as to swing up and down around the horizontal axis P1, and a cutting portion 7 having a cutting width substantially equal to the width of the machine body is connected to the front end of the feeder 6. It is connected. A rotary reel 8 for scraping the planted crops backward is provided above the front portion of the cutting portion 7. At the rear of the machine body, a grain discharge device 9 for discharging grains stored in the grain tank 4 to the outside is provided. An engine 10 is provided below the driving unit 5, and the power of the engine 10 is transmitted to each part of the machine body so that the cutting work can be performed while the machine body is running.

As shown in FIGS. 1, 2 and 3, the cutting section 7 forms a back plate 13 forming a back surface and a bottom surface on a cutting section frame 12 formed by connecting a square pipe, an angle member having an L-shaped cross section, and the like. A frame structure is formed in which the transport deck 14 and the pair of left and right side plates 15 and 16 forming the left and right side surfaces are connected and fixed. Hair clipper type cutting devices 17 are deployed along the front ends of the transport deck 14 over the left and right side plates 15 and 16, and the cut grain culms are directed toward the middle side in the width direction of the machine body over the left and right side plates 15 and 16. A horizontal feed auger 18 for collecting and transporting is erected.

The feeder 6 is configured by equipping a scraping conveyor 20 inside a transport case 19 formed in a substantially square tubular shape. The scraping conveyor 20 is laterally spread over a drive rotating body 21 that rotates around a horizontal axis core, a driven rotating body 22, a pair of left and right transport chains 23 wound around them, and a pair of left and right transport chains 23. A plurality of transport bars 24 that are vertically connected are provided, and the crops that are laterally fed and delivered by the lateral feed auger 18 are scraped up and transported along the bottom surface of the transport case 19 and transported to the front end of the threshing device 3. It is supposed to be thrown into.

A hydraulic cylinder C is erected between the front portion of the fuselage frame 25 and the lower portion of the feeder 6 in the traveling machine body 2. The cutting section 7 is configured so that the cutting section 7 can swing up and down around the horizontal axis P1 integrally with the feeder 6 by the expansion and contraction operation of the hydraulic cylinder C.

The lateral feed auger 18 will be described.
The lateral feed auger 18 is provided with a spiral blade 26 for transferring culms on the outer periphery thereof, and has a cylindrical auger drum 27 that rotates around the horizontal axis core and moves out of the auger drum 27 as the auger drum 27 rotates. It is provided with a scraping body 28 that rotates integrally to send the cut grain culm to the feeder 6. That is, as shown in FIGS. 2 and 3, a pair of left and right spiral blades 26 that exert a lateral feed function toward the front end portion of the feeder 6 with rotation are provided on the outer circumference of the large-diameter auger drum 27, and the feeder is provided. A round bar-shaped scraping body 28 that moves in and out of the auger drum 27 in a lateral width range facing the front end entrance 6a of No. 6 is provided at four locations in the circumferential direction, two on each side. It should be noted that even in the middle of the lateral feed area on the right side, one scraping body 28 that moves in and out of the auger drum 27 is provided.

As shown in FIG. 2, lid plates 29 and 30 are fixed inside the auger drum 27 near both left and right ends, and a pair of intermediate support plates 31 and 32 are provided inside the auger drum 27 at intervals. It is fixed. The rotary support shaft 33 is supported by the lid plate 30 on the right side and the intermediate support plate 32 on the right side, the connecting flange 34 key-connected to the rotary support shaft 33 is bolted to the lid plate 29 on the right side, and the rotary support shaft 33 is an auger drum. It is configured to be integrally connected to 27.

A fixed support shaft 35 is connected and fixed to the left side plate 15 in a state of being located on the coaxial core with the rotary support shaft 33, and the fixed support shaft 35 is connected and fixed to the left lid plate 29 of the auger drum 27 via a bearing 37. It is configured to rotatably support the outer fitting.

An eccentric support shaft 36 is provided in a state where the rotation is fixed to the fixed support shaft 35 by key connection, and a scraping body 28 is attached to the outer peripheral portion of the eccentric support shaft 36 via a mounting boss 38. It is rotatably mounted around the shaft core P3 along 35. Each of the plurality of scraping bodies 28 is configured so that the auger drum 27 can be slid and guided by a sliding guide body 39 provided on the auger drum 27. A pair of left and right eccentric support shafts 36 are provided, and the left and right eccentric support shafts 36 are connected by a relay shaft 40 rotatably supported by an intermediate support plate 31 on the right side.

In the lateral feed auger 18, when the rotary support shaft 33 is driven and rotated and the auger drum 27 rotates counterclockwise around the shaft core P3 of the rotary support shaft 33, each scraping body 28 follows and the eccentric support shaft 36 At this time, the distance between the eccentric support shaft 36 and the sliding guide 39 changes depending on the rotation phase, and each scraping body 28 comes out of the auger drum 27. It rotates while retreating, and scrapes the crop into the feeder 6 while avoiding interference with the transport deck 14 and the back plate 13.

Although not shown, an assembly hole having a large opening for assembling or removing the scraping body 28 or the like is formed at a position corresponding to the mounting position of the scraping body 28 on the auger drum 27. The holes are closed with a removable cover. The cover is detachably attached to the auger drum 27 by a plurality of bolts.

Next, the sliding guide body 39 will be described.
The sliding guide body 39 is integrally formed of a synthetic resin material. As shown in FIGS. 3, 4 and 5, the sliding guide body 39 has a narrow width along the axis direction of the auger drum 27 and a wide width along the circumferential direction, and has a long shape along the circumferential direction. Is formed in. The sliding guide body 39 is provided at a position corresponding to the opening 46 formed in the auger drum 27.

An insertion hole 47 is formed in the sliding guide body 39 for the scraping body 28 to insert the auger drum 27 in the radial direction. The sliding guide 39 is provided inside the auger drum 27 by bolts 48 mounted from the radial outer side of the auger drum 27 at each of the locations located on both sides of the insertion hole 47 in the circumferential direction of the auger drum 27. It is fixed to the auger drum 27 together with the stay 49 provided. To add an explanation, the sliding guide 39 has a stay 49 and an auger drum 27, which are abutted from the radial inner side in a state where the radial outer side is in contact with the inner peripheral surface of the auger drum 27. The nut 50 welded to the stay 49 and the bolt 48 are fastened and fixed in a state of being sandwiched between the two.

The fastening bolt 48 is mounted so that the auger drum 27 is inserted in the radial direction with the bolt head 48a located on the outer peripheral side of the auger drum 27. Further, between the bolt head 48a and the outer peripheral surface of the auger drum 27, a flat washer 51 that contacts the outer peripheral surface of the auger drum 27 on the shaft portion of the bolt 48, and the flat washer 51 and the bolt head 48a. A spring washer 52 located between them is attached.

The flat washer 51 that comes into contact with the outer peripheral surface of the auger drum 27 is made of a wooden washer having a large flat portion so that even wood is not buried by tightening the bolt 48. By using such a washer, the contact area with the outer peripheral surface of the auger drum 27 becomes large, and even when the pressing force of the bolt 48 is applied, for example, the corners of the washer come into contact with each other. It is possible to prevent the outer surface of the auger drum 27 from being damaged by a local load.

The sliding guide body 39 has a smooth arc surface along the inner peripheral surface of the auger drum 27 in a region other than the insertion hole forming portion 53 in which the insertion hole 47 is formed on the outer side surface in the radial direction. .. On the outer side surface in the radial direction, a portion corresponding to the insertion hole forming portion 53 is formed with a circular convex portion 54 that fits into the circular opening 46 formed in the auger drum 27. The convex portion 54 has a small amount of protrusion that does not protrude outward in the radial direction from the auger drum 27 in a state of being fitted to the opening 46 of the auger drum 27. As a result, since the sliding guide body 39 does not protrude outward in the radial direction from the outer peripheral surface of the auger drum 27, there is less risk of dust or the like being caught, and the convex portion 54 fits into the opening 46, so that the auger drum It is possible to prevent the position from shifting in the circumferential direction with respect to 27.

Bolt insertion holes 55 through which the bolts 48 are inserted are formed at locations located on both sides of the insertion hole forming portions 53 of the sliding guide body 39 in the circumferential direction in a radial direction. A circular arc surface along the inner peripheral surface of the auger drum 27 is formed in a region of the laterally inward side surface of the sliding guide body 39 excluding the insertion hole forming portion 53. Then, in this region, a fitting portion 56 into which the stay 49 is fitted is formed so as to be recessed inward. By fitting the stay 49 into the fitting portion 56, the stay 49 can be aligned with the sliding guide body 39. As a result, the bolt 48 can be easily mounted from the radial outer side of the auger drum 27 with the stay 49 fitted in the fitting portion 56.

The radial inward side of the insertion hole forming portion 53 of the sliding guide body 39 is provided with a protruding portion 57 projecting toward the radial inward side of the auger drum 27 from the stay 49. The protruding portion 57 has a substantially cylindrical shape, and is large toward the inward side in the radial direction so as to have substantially the same width as the width along the radial direction of the region of the sliding guide body 39 excluding the insertion hole forming portion 53. It has a protruding shape. That is, the width along the radial direction of the insertion hole forming portion 53 is largely projected so as to be approximately twice the width along the radial direction of the region excluding the insertion hole forming portion 53.

By the way, it is conceivable that the region of the sliding guide body 39 excluding the insertion hole forming portion 53 is also configured to be as wide as the protruding portion 57, but in such a configuration, the connecting distance by the bolt 48 is long. As a result, the fastening state may become loose with use, and a good working state may not be maintained.

The auger drum 27 is formed in a cylindrical shape, and as shown in FIG. 4, the connecting bolts 48 on both sides are in an oblique posture so that the radially inward ends are close to each other. The radial inward end of the bolt 48 and the radial inward end of the protrusion 57 are provided adjacent to each other. With this configuration, the protruding portion 57 can be projected inward as much as possible without changing the distance between the bolts 48 on both sides, and an insertion hole 47 suitable for sliding guidance can be formed.

The insertion hole 47 formed in the sliding guide body 39 is formed with a narrow portion 58 having a narrow width in the horizontal axis direction in the middle portion in the radial direction. The narrow portion 58 is formed at a position closer to the outer side in the radial direction than the stay 49. The radial outer side of the narrow portion 58 is formed so that the width along the circumferential direction becomes larger toward the outer side in the axial direction. The radial inner side of the narrow portion 58 is formed so that the width along the circumferential direction becomes larger toward the inner side in the axial direction. The width of the insertion hole 47 along the rotation axis direction of the auger drum 27 is substantially the same in all regions, and is set to a width slightly larger than the external dimensions of the scraping body 28. With this configuration, it is possible to allow a relative posture change along the circumferential direction while restricting the posture change along the axial core direction of the scraping body 28.

Next, the stay 49 will be described.
As shown in FIG. 5, the stay 49 is provided with a flat plate portion 59 having a shape that bends along the circumferential direction of the auger drum 27, and two nuts 50 for connecting in a state of being welded to the flat plate portion 59. .. The flat plate portion 59 is provided with three flat surface portions 59A, 59B, 59C that are bent so as to substantially follow the circumferential direction of the auger drum 27. The nut 50 is welded to the inside of the two flat surfaces 59A, 59C located on both sides in the circumferential direction of the three flat surfaces 59A, 59B, 59C. A rising portion 60 extending along the radial direction is formed in one of the three flat surfaces 59A, 59B, 59C located at the center in the circumferential direction.

When the flat plate portion 59 is bent, the flat plate portion 59 is bent at the same time to form the three flat portions 59A, 59B, 59C and the rising portion 60 at once without increasing the labor of processing. It is possible.

A surrounding portion 61 that surrounds the protruding portion 57 of the sliding guide body 39 is formed on the stay 49, and a rising portion 60 that extends along the radial direction is formed at the end portion of the surrounding portion 61 in the horizontal axis direction. That is, a large-diameter circular opening 62 is formed centering on the central flat surface portion 59B of the three flat surface portions 59A, 59B, 59C and extending to the flat surface portions 59A, 59C on both sides. The stay 49 is mounted on the inner peripheral side of the sliding guide body 39 in a state where the cylindrical protrusion 57 of the sliding guide body 39 inserts the opening 62. The surrounding portion 61 is formed by the periphery of the opening 62, and both end portions in the axial direction of one flat surface portion 59B located at the center in the circumferential direction are bent into a substantially L shape to form a rising portion 60.

Since the rising portion 60 is provided in a posture orthogonal to the flat surface portion 59B of the flat plate portion 59, it is easy to perform the picking operation with a finger. Therefore, when the sliding guide body 39 is assembled to the auger drum 27, the stay 49 can be easily supported while sandwiching the left and right rising portions 60 by hand.

Although not included in the scope of rights of the present application, the reference forms of the present application are shown below. In the above embodiment, the sliding guide body 39 is provided on the inner peripheral side of the auger drum 27. Instead of this configuration, for example, as shown in FIG. 6, the sliding guide body 39 is provided on the auger drum 27. It is conceivable that the configuration is provided on the inner peripheral side of. In the reference embodiment, the sliding guide 39 is provided on the outer peripheral side of the auger drum 27, and the stay 49 having the same configuration as that of the above embodiment is provided on the inner peripheral side of the auger drum 27. Then, the sliding guide body 39 is fixed by fastening the bolt 48 mounted from the outer side of the auger drum 27 and the nut 50 welded to the stay 49. The protruding portion 57 of the sliding guide body 39 projects from the stay 49 toward the radial inward side of the auger drum 27 through the opening 46 formed in the auger drum 27.

[Another Embodiment]
( 1 ) In the above embodiment, the narrow portion 58 is formed in the middle portion in the radial direction of the insertion hole 47, and the narrow portion 58 is formed at a position closer to the outer side in the radial direction than the stay 49. However, instead of this configuration, the narrow portion 58 may be formed at the same position as the stay 49 or at a position closer to the inward side in the radial direction than the stay 49. Further, the insertion holes may be configured to have the same diameter along the radial direction without providing such a narrow portion, or the inner end portion or the outer end portion may be configured to have the smallest diameter .

( 2 ) In the above embodiment, one flat surface portion of the flat plate portion of the stay 49 is provided with rising portions at both end portions in the axial direction, but instead of this configuration, standing over a plurality of flat surface portions. A rising portion may be provided, or a rising portion may be provided at one end in the axial direction. Further, the rising portion 60 may not be formed.

( 3 ) In the above embodiment, the harvester applied to the ordinary combine is shown as an example of the harvester, but another type of harvester such as a corn harvester may be used.

The present invention can be applied to a harvester such as a conventional combine harvester or a corn harvester in which harvested crops are gathered in the lateral width direction of the machine by a horizontal feed auger and then transported to the rear side.

6 Feeder 18 Lateral feed auger 27 Auger drum 28 Scraping body 39 Sliding guide body 48 Bolt 49 Stay 53 Insertion hole forming part 57 Protruding part 58 Width narrow part 59 Flat plate part 59B Flat part 60 Rising part 61 Enclosing part

Claims (5)

It is equipped with a horizontal feed auger that transports the harvested culms in the width direction of the machine, and a feeder that transports the harvested culms that are transferred by the horizontal feed auger and then sent out to the rear of the machine.
To the horizontal feed auger
A cylindrical auger drum that has a spiral blade for transferring culms on the outer circumference and rotates around the horizontal axis,
With the rotation of the auger drum, a scraping body that rotates integrally while moving out of the auger drum and sends the cut grain culm to the feeder.
Sliding provided at a position corresponding to the opening formed in the auger drum, an insertion hole through which the scraping body is inserted is formed, and the scraping body is slidably guided to move out of the auger drum. Guide body and
A stay for attaching the sliding guide body to the auger drum is provided.
The stay is provided inside the auger drum and
The insertion hole forming portion of the sliding guide body on which the insertion hole is formed is provided with a protrusion that protrudes inward in the radial direction of the auger drum from the stay .
The insertion hole is formed with a narrow portion having a narrow width in the direction of the horizontal axis in the middle of the radial direction.
The narrow portion is a harvester formed at a position closer to the inner side in the radial direction than the outer peripheral portion of the auger drum. The harvester according to claim 1, wherein the narrow portion is formed at a position closer to the outer side in the radial direction than the stay. The sliding guide body is attached to the auger drum together with the stay by bolts mounted from the radial outer side of the auger drum at each of the locations located on both sides of the insertion hole in the circumferential direction of the auger drum. Fixed,
The harvester according to claim 1 or 2, wherein the radial inward end of the bolt and the radial inward end of the protrusion are provided adjacent to each other. It is equipped with a horizontal feed auger that transports the harvested culms in the width direction of the machine, and a feeder that transports the harvested culms that are transferred by the horizontal feed auger and then sent out to the rear of the machine.
To the horizontal feed auger
A cylindrical auger drum that has a spiral blade for transferring culms on the outer circumference and rotates around the horizontal axis,
With the rotation of the auger drum, a scraping body that rotates integrally while moving out of the auger drum and sends the cut grain culm to the feeder.
Sliding provided at a position corresponding to the opening formed in the auger drum, an insertion hole through which the scraping body is inserted is formed, and the scraping body is slidably guided to move out of the auger drum. Guide body and
A stay for attaching the sliding guide body to the auger drum is provided.
The stay is provided inside the auger drum and
The insertion hole forming portion of the sliding guide body on which the insertion hole is formed is provided with a protrusion that protrudes inward in the radial direction of the auger drum from the stay.
A surrounding portion surrounding the protruding portion is formed on the stay.
A harvester in which a rising portion extending along the radial direction is formed at an end portion of the surrounding portion in the horizontal axis direction. The stay is provided with a flat plate portion having a shape that bends along the circumferential direction of the auger drum.
The harvester according to claim 4, wherein the rising portion is provided on one flat surface portion of the flat plate portion.

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