WO2017150630A1

WO2017150630A1 - Harvester and combine

Info

Publication number: WO2017150630A1
Application number: PCT/JP2017/008176
Authority: WO
Inventors: タンチアユアン; 有本敬; 林茂幸; 小▲柳▼大河; 青山祐也; 小林宜泰; 一二三慶城
Original assignee: 株式会社クボタ
Priority date: 2016-03-01
Filing date: 2017-03-01
Publication date: 2017-09-08
Also published as: CN108697049B; PH12018501767A1; CN108697049A

Abstract

The present invention is provided with: a cross-feed auger 18 for transferring reaped grain culm in the width direction of the machine; and a feeder 6 for conveying, to the rear of the harvester, reaped grain culm that has been transferred by the cross-feed auger 18 and subsequently fed rearward. The cross-feed auger 18 is provided with: a cylindrical auger drum 27 that rotates about a horizontal axis, a helical vane 26 for transferring grain culm being provided to the outer periphery of the cylindrical auger drum 27; scraping bodies 28 for feeding the reaped grain culm out to the feeder 6, the scraping bodies 28 rotating integrally with the rotation of the auger drum 27 while moving in and out of the auger drum 27; and slide-guiding bodies 39 for guiding the scraping bodies 28 in a sliding manner so as to allow movement in and out of the auger drum 27, the slide-guiding bodies 39 being provided to the inner peripheral surface side of the auger drum 27.

Description

Harvester and combine

The present invention relates to a harvester and a combine.

[Background 1]
As a conventional harvesting machine, there is a harvesting machine in which harvested crops are gathered together in the lateral width direction of the machine body by a lateral feed auger and conveyed to the rear side by a feeder. In an ordinary combine that is an example of a conventional harvesting machine, a lateral feed auger has a spiral blade for transferring cereals on the outer periphery of a cylindrical auger drum, and is scraped from the auger drum as the auger drum rotates. Is configured to rotate integrally while being withdrawn and to send the harvested cereal meal to the feeder. The scraping body is supported so as to be freely withdrawn and retracted in a state where the sliding guide body provided in the auger drum is inserted, and the sliding guide body is configured to be attached to the auger drum from the outer peripheral side. (For example, refer to Patent Document 1).

[Background Technology 2]
As a conventional combine, there is a combine provided with a cutting part connected to the front part of the traveling machine body and a feeder that conveys the harvested cereal from the cutting part toward the rear side of the traveling machine body by rotational driving of an endless chain. . As this type of combiner, the feeder can be rotated around the horizontal axis along the left-right direction of the traveling machine body on the feeder case and one end side in the conveying direction of the feeder case. A pair of sprockets that are spaced apart from each other, a rotating body that is supported on the other end in the conveying direction of the feeder case in a state of being rotatable around a horizontal axis, and a pair of sprockets A pair of endless chains that are wound around the rotating body and a pair of endless chains that are attached to the endless chains at positions spaced in the longitudinal direction. There existed a thing provided with a transportation object which moves grain husk in a conveyance direction (for example, refer to patent documents 2).
As shown in FIG. 14, the sprocket includes a recess 203 that is located between the teeth H adjacent in the circumferential direction of the sprocket 200 and into which the pin portion 202 </ b> A of the endless chain 202 can be engaged. Yes.
Moreover, the recessed part 203 is the side part 203a of the other side in the circumferential direction of the tooth | gear H located in one side in the circumferential direction among the adjacent teeth H, and the circumferential direction of the tooth | gear H located in the other side in the circumferential direction. The side portion 203b on one side is formed in a curved shape continuous along the outer peripheral surface of the pin portion 202A of the endless chain 202.

Japanese Unexamined Patent Publication No. 2007-215453 Japanese Unexamined Patent Publication No. 2015-35984 (FIGS. 3 to 5)

[Problem 1] (Corresponding to [Background Technology 1] above)
In the above-described conventional configuration, the sliding guide body is configured to be attached to the auger drum from the outer peripheral side, and thus is in a state of projecting radially outward from the outer peripheral surface of the auger drum. As a result, when the harvesting operation is performed and the harvested cereal mash is fed to the feeder by the scraping body, the sliding projecting radially outward even after the scraping body is retracted radially inward The guide body may get caught and stay. Then, such harvested cereals may accumulate in the vicinity of the sliding guide and cause clogging of the cereals in the lateral feed auger.

Therefore, it has been desired that the harvested cereals can be caught and deposited with less risk.

[Problem 2] (Corresponding to [Background Technology 2] above)
In the feeder case, a part of the harvested cereal rice cake in the middle of the conveyance is fitted in the recess of the sprocket, and it may be sandwiched between the endless chain and rotated together with the sprocket.
According to the conventional combine described above, as shown in FIG. 14, the inner peripheral portion of the recess 203 of the sprocket 200 has a curved shape along the outer peripheral surface of the pin portion 202A of the endless chain 202. When the harvested culm K is positioned, since the pin portion 202A is placed thereon, the portion of the endless chain 202 is pushed up to the diameter expansion side.

The pitch Ps of the recess 203 of the sprocket 200 (the linear separation distance on the circumference with the radius of the distance between the axis of the sprocket 200 and the axis of the pin 202A engaged with the recess 203), and the endless chain 202 Since the pitch Pc of the pin portions 202A (the distance between the adjacent pin portions 202A) is set to the same dimension, the pin portions 202A are pushed up to the diameter-expanded side by the harvested cereal mill K, so that the adjacent pins The portions 202A are arranged so as to be displaced in the circumferential direction from the centers of the corresponding concave portions 203 (see FIGS. 14 to 16).
Accordingly, at the adjacent portion, the pin portion 202A is lifted from the bottom of the recess 203. The positional deviation of the pin portion 202A appears in a state where it is accumulated in each adjacent pin portion 202A. When the accumulated amount of misalignment reaches the pitch of the recesses 203, the teeth are engaged with one tooth shifted (see FIG. 16).

As a result, one of the pair of endless chains arranged in parallel with a gap is in a state shifted by one tooth in the conveying direction (referred to as tooth skipping).
When tooth skipping occurs, the transport body attached over the pair of endless chains is also inclined with respect to the transport direction, and a biased stress acts on the attachment portion between the endless chain and the transport body to cause deformation or damage. There is.
In addition, since the state where the conveying body is inclined is easily misunderstood as the state where the endless chain is loose, there is a possibility that erroneous recognition may be generated and erroneous correspondence such as strengthening of the endless chain may be taken.

Therefore, an object of the present invention is to provide a combine that solves the above-described problems and is unlikely to cause tooth skipping even when another object is fitted in the recess of the sprocket.

[Solution 1] (Corresponding to [Problem 1] above)
The characteristic configuration of the harvester according to the present invention is:
A transverse feed auger that transports the harvested cereals in the lateral direction of the machine body, and a feeder that conveys the harvested cereal grains that have been transported rearward after being transported by the lateral feed auger to the rear side of the machine body,
The lateral feed auger
A cylindrical auger drum that is provided with a spiral blade for transferring cereals on the outer periphery and rotates around a horizontal axis;
A scraping body that rotates integrally with the rotation of the auger drum while the auger drum rotates and sends the harvested cereal meal to the feeder;
And a sliding guide body which is attached to the inner peripheral surface side of the auger drum and which slides and guides the scraping body so as to be able to move out and retract from the auger drum.

According to the present invention, since the sliding guide body is attached to the inner peripheral surface side of the auger drum, the sliding guide body is scraped by the sliding guide body in a state where it does not protrude radially outward from the outer peripheral surface of the auger drum. It becomes possible to slide and guide the embedded body from the auger drum.

As a result, even when some of the harvested cereals remain on the auger drum side when the sown cereals that have been laterally fed while the auger drum rotates are sent to the feeder by the scraping body, they remain. In the harvested cereal, the scraper is retreated inward in the radial direction, and the outer peripheral surface of the auger drum in the vicinity thereof does not protrude greatly outward. It will be separated from the part.

Therefore, there is less risk of clogging in the lateral feed auger due to catching and accumulation of the harvested cereals on the outer periphery of the auger drum, making it possible to perform good harvesting operations.

In the present invention, the sliding guide body is fixed and attached by a fixture unit in a state where the radially outer side portion of the sliding guide body is in contact with the inner peripheral surface of the auger drum. It is preferable.

According to this configuration, since the radially outer side portion of the sliding guide body is in contact with the inner peripheral surface of the auger drum, when the sliding guide body is fixed by the fixture unit, it is applied to the auger drum. It can be firmly fixed when attached.

Therefore, while the sliding guide body is located on the inner peripheral surface side of the auger drum, the sliding guide body can be reliably fixed to the auger drum by the fixture unit.

In the present invention, the sliding guide body is formed with an insertion hole through which the scraping body is inserted,
Of the sliding guide body, on the portions located on both sides of the insertion hole in the circumferential direction of the auger drum, a protruding portion that protrudes toward the scraping body side is formed,
It is preferable that the protruding portion is provided at a location in the sliding guide body that is in contact with the inner peripheral surface of the auger drum.

According to this configuration, the scraping body is supported by the sliding guide body so as to be freely withdrawn and retracted in the state of being inserted through the insertion hole when it is withdrawn from the auger drum as the auger drum rotates. At that time, the scraping body is slidably guided in a state of being received by the protrusions formed at the portions located on both sides of the insertion hole.

And since the protrusion part which protrudes toward the scraping body side is provided in the part which touches the inner peripheral surface of an auger drum among sliding guide bodies, it slides from the scraping body with the withdrawal movement. Even if the guide body receives a pressing force along the circumferential direction, the force is received by the inner peripheral surface of the auger drum, and it is possible to avoid applying an excessive force to the sliding guide body. As a result, there is little risk of damage to the sliding guide body, and durability can be improved.

In the present invention, the sliding guide body is formed with an insertion hole through which the scraping body is inserted,
The fixture unit is attached to the auger drum from the radially inner side, and includes an inner fixing portion that sandwiches the sliding guide body with an inner peripheral surface of the auger drum,
It is preferable that the inner fixing portion is provided with an extension guide portion that extends the inner peripheral surface of the insertion hole inward in the radial direction.

According to this configuration, the sliding guide body is in a state where the radially outer side portion is in contact with the inner peripheral surface of the auger drum, with the inner fixing portion in the fixture unit and the inner peripheral surface of the auger drum, It is firmly fixed in a state where the sliding guide body is sandwiched.

Then, the inner peripheral surface of the insertion hole through which the scraper is inserted is extended radially inward by the extension guide portion provided in the inner fixing portion. When the scraper is retracted radially inward, the tip of the scraper is radially inward from the insertion hole of the sliding guide due to assembly errors of the entire lateral feed auger. Even if the position is displaced, the catching body can be prevented from coming off by being received and supported by the extension guide portion.

In the present invention, the sliding guide body is formed with an insertion hole through which the scraping body is inserted,
It is preferable that the sliding guide body is fixed to the auger drum by the fixture unit at each of the positions located on both sides of the insertion hole in the circumferential direction of the auger drum.

According to this configuration, the sliding guide body is fixed by the fixture unit at each of the positions located on both sides of the insertion hole along the circumferential direction of the auger drum. That is, since it is fixed at each side of the insertion hole through which the scratching body is inserted, even if the scraping body slides repeatedly, it is stably supported in a state where both sides of the insertion hole are fixed. Therefore, the sliding guide body can exhibit a good guide function over a long period of time.

In the present invention, the fixture unit preferably includes a pair of fasteners positioned on both sides of the insertion hole in the circumferential direction of the auger drum, and a connecting member that connects the pair of fasteners. It is.

According to this configuration, the sliding guide body is fixed to the auger drum by the fasteners provided separately in each of the locations located on both sides of the insertion hole in the circumferential direction of the auger drum. And since a pair of these fasteners are connected by the connection member, a pair of fastener does not fall apart at the time of an assembly | attachment, a maintenance work, etc., handling is easy and workability | operativity improves.

In the present invention, it is preferable that a fitting portion into which the pair of fasteners and the connecting member are fitted is formed on the inner peripheral surface of the sliding guide body.

According to this configuration, when the sliding guide body is attached to the inner peripheral surface of the auger drum during assembly or maintenance work, the pair of fasteners and the connecting member are formed on the inner peripheral surface of the sliding guide body. It can be easily positioned by being fitted into the fitting portion, and the assembling work can be easily performed.

In the present invention, in the fixture unit, the bolt head is positioned on the outer peripheral side of the auger drum, the bolt inserted in the radial direction through the auger drum, and positioned on the inner peripheral side of the auger drum, A nut to which the bolt is fastened,
Between the bolt head and the outer peripheral surface of the auger drum, a flat washer that is in contact with the outer peripheral surface of the auger drum on the shaft of the bolt, and located between the flat washer and the bolt head It is preferable that a spring washer is attached.

According to this configuration, the bolt is inserted from the outer peripheral side of the auger drum to the radially inner side, and the nut positioned on the inner peripheral side of the auger drum is fastened to the bolt. It can fix to the inner peripheral surface of the.

A flat washer and a spring washer are mounted between the bolt head located on the outer peripheral side of the auger drum and the outer peripheral surface of the auger drum. The flat washer is in contact with the outer peripheral surface of the auger drum, and the spring washer is located between the flat washer and the bolt head.

When a cereal clogging occurs in the lateral feed auger, an excessive force may be applied to the bolt due to the relative movement of the auger drum and the scraper. If only the spring washer with a smaller outer diameter is provided between the bolt head and the outer peripheral surface of the auger drum, the corner of the outer peripheral portion of the spring washer becomes the outer peripheral surface of the auger drum when the bolt is slightly inclined. There is a possibility that the auger drum is locally loaded and contacted with the outer peripheral surface of the auger drum.

Therefore, by interposing a plain washer having a larger contact area than the spring washer, the contact area with the outer peripheral surface of the auger drum is increased, and the force acting on the outer peripheral surface of the auger drum is dispersed to locally Load can be reduced and breakage of the auger drum can be avoided.

In the present invention, it is preferable that the sliding guide body is formed with a convex portion that protrudes radially outward and fits into an opening formed in the auger drum.

According to this configuration, the protrusion formed on the sliding guide body is fitted into the opening formed on the auger drum, whereby the position of the sliding guide body along the peripheral surface of the auger drum is determined. In this way, the convex portion fits into the opening, so that the sliding guide body can be restricted from moving along the peripheral surface of the auger drum. Therefore, the sliding guide is supported in a stable state with little positional deviation in the direction along the peripheral surface of the auger drum.

In the present invention, it is preferable that an insertion hole through which the scratching body is inserted is formed in a state where the inside of the convex portion of the sliding guide body is inserted along the radial direction.

According to this configuration, the scraping body is inserted through the insertion hole formed in the convex portion of the sliding guide body. Since the insertion hole is formed in the convex portion that fits into the opening formed in the auger drum in this way, a force acts in a direction along the peripheral surface of the auger drum as the scraping body slides. Moreover, when the convex part fits into the opening, it is possible to prevent the positional deviation in the direction along the peripheral surface of the sliding guide body.

[Solution 2] (Corresponding to [Problem 2] above)
A feature of the present invention is a cutting part connected to the front part of the traveling body,
A feeder that conveys the harvested cereals harvested by the harvesting unit toward the rear of the traveling machine body, and
The feeder includes a feeder case,
Plurally located at one end side in the conveying direction in the feeder case, in a state of being rotatable around the horizontal axis along the left-right direction of the traveling machine body and spaced apart in the horizontal axis direction With sprockets,
On the other end side in the conveying direction in the feeder case, a rotating body supported in a rotatable state around the horizontal axis,
A plurality of endless chains wound around the sprockets and the rotating body;
A transport body attached across the plurality of endless chains at a position spaced in the longitudinal direction of the endless chain, and moving the harvested cereal meal in the transport direction as the endless chain rotates. ,
The sprocket includes a recess that is located between teeth adjacent to each other in the circumferential direction of the sprocket and into which a pin portion of the endless chain can be engaged,
The concave portion is a side portion on the other side in the circumferential direction of the teeth located on one side in the circumferential direction among the adjacent teeth, and the circumferential direction of a tooth located on the other side in the circumferential direction. A side portion provided on one side, a side portion on the other side, and a side portion on the one side are provided with a flat bottom portion along the circumferential direction.

According to the present invention, since the bottom portion of the flat shape along the circumferential direction of the sprocket is formed across the tooth side portions (the one side portion and the other side portion) facing each other across the concave portion of the sprocket, The opening width of the concave portion can be formed longer than the conventional one by the length corresponding to the width in the circumferential direction. Since the bottom itself is formed in a flat shape along the circumferential direction of the sprocket as described above, the pin portion of the endless chain is allowed to move along the circumferential direction in the recess.

Therefore, even if another object such as a harvested cereal rice cake is fitted in the recess, the pin part moves along the circumferential direction in the recess so that it can escape in a direction to avoid the other object. Therefore, as in the prior art, it is possible to relieve the pin portion overlapping the other object in the recess and moving greatly in the diameter increasing direction.
In addition, in the other adjacent recesses, the pin portions that fit in the same manner can move in the circumferential direction, and therefore, in each of the adjacent recesses, the pin portion is difficult to ride on the side portion of the tooth. Teeth skipping is less likely to occur.

In the present invention, it is preferable that the boundary between the bottom and the other side and the boundary between the bottom and the one side are equidistant from the rotation center of the sprocket. .

According to this configuration, the shape of the bottom portion is axisymmetric with respect to a center line passing through the center of the bottom portion in the circumferential direction and the rotation center of the sprocket. Therefore, when the pin part fitted in the concave part moves along the bottom part, the sprocket rotates in the normal direction or in the reverse direction, and the same condition is not easily generated in any direction. it can.

In the present invention, it is preferable that the shape of the tooth tip of the tooth is a flat shape along the circumferential direction.

According to this configuration, since the tip shape of the sprocket is a flat shape along the circumferential direction, it is difficult to cause trouble such as the tip of the tooth being caught when fitting with an endless chain, and the rotational driving force can be smoothly generated. Can communicate.

In the present invention, it is preferable that the circumferential width of the tooth tip of the tooth is larger than the outer diameter of the pin portion.

According to this configuration, since the width of the tooth tip is larger than the outer diameter of the pin portion, the effective cross-sectional area of the tooth tip as a sprocket increases compared to the width smaller than the outer diameter of the pin portion. Can be configured. Further, if the tooth tip width of the sprocket is increased, the number of teeth in the circumferential direction can be reduced, and the member cost can be reduced by reducing the processing effort.

In the present invention, it is preferable that the width of the bottom portion in the circumferential direction is 2 mm or more and 5 mm or less.

Since there are many diameters of 2 mm or more of the cutting cereals that fit into the recesses, the width of the bottom part is set to 2 mm at a minimum so that the pin part avoids the cutting cereals in the recesses and Easier to escape in the direction. As a result, tooth skipping is less likely to occur.
In addition, if the width of the bottom portion is too large, the movement range of the pin portion in the bottom portion may be excessively increased, and there is a possibility that play occurs or transmission loss of rotational driving force occurs. If the width of the bottom is 5 mm or less, such a problem is unlikely to occur.
Thus, according to this configuration, it is possible to more suitably realize prevention of tooth skipping and smooth rotation driving force transmission between the sprocket and the endless chain.

It is a whole side view of the ordinary combine which concerns on 1st Embodiment. It is a partial vertical side view of the combine front part which concerns on 1st Embodiment. It is a partial cross section top view of the combine front part which concerns on 1st Embodiment. It is a top view of the state where the auger drum concerning a 1st embodiment developed. It is a vertical side view of the transverse feed auger according to the first embodiment. It is a partially vertical side view of the transverse feed auger according to the first embodiment. It is explanatory drawing which shows the attachment state of the sliding guide body which concerns on 1st Embodiment. It is a perspective view of the sliding guide body which concerns on 1st Embodiment. It is a left view of the combine which concerns on 2nd Embodiment. It is a left side sectional view of a feeder concerning a 2nd embodiment. It is top surface sectional drawing of the feeder which concerns on 2nd Embodiment. It is explanatory drawing which shows the structure of the endless chain which concerns on 2nd Embodiment. It is explanatory drawing which shows the fitting condition of the sprocket which concerns on 2nd Embodiment, and an endless chain. It is explanatory drawing which shows the fitting condition of the sprocket of the prior art example which concerns on 2nd Embodiment, and an endless chain. It is explanatory drawing which shows the fitting condition of the sprocket of the prior art example which concerns on 2nd Embodiment, and an endless chain. It is explanatory drawing which shows the fitting condition of the sprocket of the prior art example which concerns on 2nd Embodiment, and an endless chain. It is left side surface sectional drawing of the feeder which concerns on another embodiment of 2nd Embodiment.

(1) [First Embodiment]
Hereinafter, the case where 1st Embodiment which is an example of this invention is applied to the normal type combine as an example of a harvesting machine is described based on drawing. In this embodiment, when defining the longitudinal direction of the aircraft, it is defined along the aircraft traveling direction in the working state. That is, the direction indicated by reference numeral (F) in FIG. 1 is the front side of the aircraft, and the direction indicated by reference numeral (B) in FIG.

As shown in FIG. 1, this combine is provided in a traveling machine body 2 having a pair of left and right crawler traveling devices 1, in which an axial flow type threshing device 3 and a grain storage grain tank 4 are arranged in parallel on the left and right. In addition, a driving unit 5 is provided in front of the grain tank 4. A feeder 6 for conveying the harvested cereal rice cake is connected to the front part of the threshing device 3 so as to be swingable up and down around the horizontal axis P1, and a cutting part 7 having a cutting width substantially corresponding to the lateral width of the machine body is connected to the front end of the feeder 6. It is connected. A rotary reel 8 that scrapes the planted crops backward is provided above the front part of the cutting unit 7. A grain discharging device 9 for discharging the grains stored in the grain tank 4 to the outside is provided. An engine 10 is provided below the operation unit 5, and the power of the engine 10 is transmitted to each part of the machine body so that the cutting operation can be performed while the machine body is running.

As shown in FIGS. 1, 2, and 3, the cutting unit 7 forms a back plate 13 that forms a back surface and a bottom surface on a cutting unit frame 12 configured by connecting a square pipe, an angle member having an L-shaped cross section, and the like. The conveyance 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 to form a frame structure. A clipper type mowing device 17 is provided across the left and

right side plates

15, 16 along the front end of the transport deck 14, and the harvested cereals are directed toward the intermediate side in the body width direction across the left and

right side plates

15, 16. A transverse feed auger 18 for collecting and transporting is installed.

The feeder 6 is configured by installing a scraping conveyor 20 inside a transfer case 19 formed in a substantially rectangular tube shape. The scraping conveyor 20 includes a drive rotating body 21 that rotates around a horizontal axis, 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 connected to each other are provided, and the crop that has been laterally fed by the lateral feed auger 18 is picked up and transported along the bottom surface of the transport case 19 to be the front end of the threshing device 3. It is to be thrown into.

A hydraulic cylinder C is installed between the front part of the machine body frame 25 and the lower part of the feeder 6 in the traveling machine body 2, and the cutting part 7 swings around the horizontal axis P <b> 1 integrally with the feeder 6 by the expansion and contraction of the hydraulic cylinder C. It is configured to be movable up and down.

The lateral feed auger 18 will be described.
The lateral feed auger 18 is provided with a spiral blade 26 for transferring cereals on the outer peripheral portion thereof, and a cylindrical auger drum 27 that rotates around the horizontal axis, and the auger drum 27 withdraws and retracts as the auger drum 27 rotates. And a scraping body 28 that integrally rotates to send the harvested cereal meal to the feeder 6. That is, as shown in FIGS. 2 and 3, the outer periphery of the large-diameter auger drum 27 is provided with 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 forward rotation. Two bar-like scraping bodies 28 that extend and retract from the auger drum 27 in the lateral width region facing the front end inlet 6a of the feeder 6 are provided at four locations in the circumferential direction. Note that a single scraping body 28 that moves out of the auger drum 27 is also provided in the middle of the right lateral feed region.

As shown in FIG. 3,

lid plates

29 and 30 are fixed inside the auger drum 27 in the vicinity of both left and right ends, and a pair of

intermediate support plates

31 and 32 are spaced inside the auger drum 27. It is fixed. The rotation support shaft 33 is supported by the right cover plate 30 and the right intermediate support plate 32, and a connection flange 34 key-connected to the rotation support shaft 33 is bolt-connected to the right cover plate 29. The rotation support shaft 33 is connected to the auger drum. 27 to be integrally connected.

A fixed support shaft 35 is connected and fixed to the left side plate 15 so as to be positioned coaxially with the rotation support shaft 33, and the fixed support shaft 35 is connected to the left cover plate 29 of the auger drum 27 via a bearing 37. Is configured to be rotatably fitted and supported.

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 the scraper 28 is fixed to the outer periphery of the eccentric support shaft 36 via a mounting boss 38. 35 is rotatably mounted around an axis P2 along the axis 35. The plurality of scraping bodies 28 are configured to be slidably guided through the auger drum 27 by sliding guide bodies 39 provided on the auger drum 27, respectively. A pair of left and right eccentric support shafts 36 are provided. The left and right eccentric support shafts 36 are connected by a relay shaft 40 that is rotatably supported by the right intermediate support plate 31.

When the rotation support shaft 33 is driven and rotated and the auger drum 27 rotates counterclockwise around the axis P3 of the rotation support shaft 33 in FIG. The shaft 36 rotates about the axis P4 of the support shaft 36. At this time, the distance between the eccentric support shaft 36 and the sliding guide body 39 changes depending on the rotation phase. Rotating while leaving and exiting 27, the crop is scraped into the feeder 6 while avoiding interference with the transport deck 14 and the back plate 13.

As shown in FIG. 4, three assembling

holes

41 a, 41 b, which are largely opened to attach or remove the scraping body 28 or the like, are provided at positions corresponding to the mounting positions of the scraping body 28 on the auger drum 27. 41c is formed, and the

assembly holes

41a, 41b, 41c are closed by

detachable covers

42a, 42b, 42c. The

covers

42 a, 42 b, 42 c are configured to be fixed to the auger drum 27 by a plurality of bolts 43. The bolts 43 for attaching the

covers

42a, 42b, and 42c are not described in detail, but in order to reduce the risk of catching crops, the outer shape of the head is cylindrical, and the top of the head is A hexagon hole is formed, and a fastening operation and a removal operation can be performed using a hexagon wrench (not shown).

Next, the sliding guide 39 will be described.
As shown in FIGS. 6, 7, and 8, the sliding guide body 39 is integrally formed of a synthetic resin material, and the width along the axial direction of the auger drum 27 is narrow and the width along the circumferential direction. Is wide and formed in a long shape along the circumferential direction. The width is narrower from the middle portion in the longitudinal direction toward both side ends, and both end portions are formed in an arc shape. The sliding guide 39 is formed in a smooth circular arc surface along the inner peripheral surface of the auger drum 27 over the entire side surface on the radially outer side. The side surface on the radially inner side of the sliding guide 39 is formed on three flat surfaces that are bent so as to be substantially along the circumferential direction of the auger drum 27.

The sliding guide body 39 is fixed and attached by the fixture unit 45 in a state where the radially outer side portion is in contact with the inner peripheral surface of the auger drum 27. The sliding guide 39 is formed with an insertion hole 46 through which the scraping body 28 passes the auger drum 27 in the radial direction. The sliding guide body 39 is fixed to the auger drum 27 by a fixture unit 45 at each of the positions located on both sides of the insertion hole 46 in the circumferential direction of the auger drum 27.

The fixing unit 45 includes bolts 47 attached in a state where the auger drum 27 is inserted in the radial direction from the outer peripheral side of the auger drum 27 at locations positioned on both sides of the insertion hole 46 in the circumferential direction of the auger drum 27. And a nut 48 as a fastener that is positioned on the inner peripheral side of the auger drum 27 and to which the bolt 47 is fastened. The pair of nuts 48 is formed in a square shape, and the pair of nuts 48 are integrally connected by a plate-like connecting member 49. The pair of nuts 48 and the connecting member 49 that are integrally connected in this way correspond to the inner fixing portion 50 that is mounted in a state where the sliding guide body 39 is sandwiched from the radially inner side.

The sliding guide body 39 is formed with an insertion hole 46 through which the scraping body 28 is inserted so as to penetrate the central portion in the longitudinal direction along the radial direction. Bolt insertion holes 51 are formed at both sides in the circumferential direction of the insertion hole 46, that is, at positions located on both sides of the insertion hole 46 along the longitudinal direction of the sliding guide body 39 so that the bolts 47 are inserted. ing.

A protruding portion 53 that protrudes radially outward and fits into an opening 52 formed in the auger drum 27 is formed at a radially outward portion of the central portion of the sliding guide 39. An insertion hole 46 through which the scraping body 28 is inserted is formed in a state where the inside of the convex portion 53 is inserted along the radial direction.

In the auger drum 27, an opening 52 for fitting the convex portion 53 of the sliding guide body 39 is formed at a position corresponding to the attachment position of the scraping body 28. When the sliding guide body 39 is attached to the auger drum 27, the sliding guide body 39 is mounted from the inner peripheral side of the auger drum 27 in a state where the convex portion 53 is fitted in the opening 52. Then, the inner fixing portion 50 is attached from the radially inner side of the sliding guide body 39, the bolt 47 is inserted from the radially outer side of the auger drum 27, and is screwed onto the nut 48 and tightened. The sliding guide 39 is fixed. Such a mounting operation of the sliding guide 39 can be performed from the radially outer side of the auger drum 27 through the

assembly holes

41a, 41b, 41c with the

covers

42a, 42b, 42c opened.

As shown in FIG. 6, the convex portion 53 formed at the radially outer side portion of the central portion of the sliding guide body 39 does not protrude radially outward from the outer peripheral surface of the auger drum 27. The protrusion 27 is formed as a protrusion having a small protrusion amount that fits into the opening 52 formed in the drum 27. As a result, the sliding guide body 39 does not protrude radially outward from the outer peripheral surface of the auger drum 27, so that there is little possibility of trapping of scraps and the like, and the convex portion 53 fits into the opening 52 so that the auger drum is fitted. 27 can be prevented from being displaced in the circumferential direction.

As shown in FIG. 8, the inner fixing portion 50, that is, a pair of nuts 48 (fasteners) and a connecting member 49 that are integrally connected are fitted to the inner peripheral surface of the sliding guide body 39. Is formed. The fitting portion 54 is formed so as to be recessed in the inner peripheral surface of the sliding guide body 39. The inner fixing portion 50 is attached to the sliding guide body 39 in a state of being aligned by fitting into the fitting portion 54. As a result, the bolt 47 can be easily mounted from the radially outer side of the auger drum 27 with the inner fixing portion 50 fitted in the fitting portion 54. The inner fixing portion 50 is mounted in a state of being fitted into the fitting portion 54 and being applied to the inner peripheral surface of the sliding guide body 39 without a gap.

As shown in FIGS. 6 and 7, in the sliding guide body 39, protruding portions 55 that protrude toward the scraping body 28 are formed at portions located on both sides of the insertion hole 46 in the circumferential direction of the auger drum 27. Has been. The protruding portion 55 is provided at a location in the sliding guide 39 that contacts the inner peripheral surface of the auger drum 27. When the description is added, as shown in FIG. 8, the insertion hole 46 has a long hole shape in the circumferential direction at the inner peripheral surface side portion of the sliding guide body 39. As shown in FIGS. 6 and 7, a protruding portion 55 is formed so that the inner surface of the insertion hole 46 protrudes toward the scraper 28 side, that is, the side close to each other toward the radially outer side. The protruding portion 55 has a shape in which a portion that contacts the inner peripheral surface of the auger drum 27 protrudes most. As a result, the insertion hole 46 has a substantially circular shape on the outer peripheral surface side of the sliding guide 39 (see FIG. 4).

The inner surface of the projecting portion 55 is formed in an inclined shape so as to approach each other toward the radially outer side. With this configuration, the inner surface of the scraping body 28 and the insertion hole 46 is inserted at a position where the auger drum 27 is inserted while allowing a relative change in the posture of the scraping body 28 accompanying the rotation of the auger drum 27. And the dust can be prevented from entering the auger drum 27 through the insertion hole 46.

In such a configuration, for example, when cereal clogging occurs and an excessive force is applied to the scraped body, the sliding guide body is located at a position where the protruding portion 55 of the insertion hole 46 protrudes most. A pressing force acts on 39. However, since the projecting portion 55 is the most projecting portion is in contact with the inner peripheral surface of the auger drum 27, the pressing force as described above is received by the auger drum 27 and the force is dispersed, so that the sliding guide It is possible to avoid the body 39 from being damaged.

The connecting member 49 in the inner fixing portion 50 is provided with an extension guide portion 56 that extends the inner peripheral surface of the insertion hole 46 radially inward. That is, as shown in FIGS. 6, 7, and 8, the connection member 49 is formed with an opening 57 for allowing the scraping body 28 to be inserted. Of the peripheral edge of the opening 57, the portions located on both sides in the circumferential direction are bent radially inwardly into an approximately L shape to form an extension guide portion 56.

Due to errors in assembly of the entire lateral feed auger 18 and the like, the scraping body 28 may be detached from the insertion hole 46 of the sliding guide body 39 when it is retracted inward in the radial direction of the auger drum 27. However, it is possible to avoid the scraping body 28 from being pulled out to the inward side of the auger drum 27 by being received by the extension guide portion 56 formed in the inner fixing portion 50.

The bolt 47 in the fixture unit 45 is mounted so that the auger drum 27 is inserted in the radial direction in a state where the bolt head 47a is positioned on the outer peripheral side of the auger drum 27. Further, between the bolt head 46 a and the outer peripheral surface of the auger drum 27, a flat washer 58 that abuts the outer peripheral surface of the auger drum 27 on the shaft portion of the bolt 47, and the flat washer 58 and the bolt head 47 a. A spring washer 59 located between them is mounted.

The flat washer 58 that contacts the outer peripheral surface of the auger drum 27 is a wooden washer, and is a plain washer having a large ratio of the outer diameter to the inner diameter. The wood washer is a washer having a large area in a flat portion so that it is not buried in the wood by tightening the bolts 47. By using such a washer, the contact area with the outer peripheral surface of the auger drum 27 is increased, and even when a pressing force is applied to the bolt, for example, the corner of the washer abuts on the local surface. It can be avoided that the outer surface of the auger drum 27 is damaged due to a heavy load.

Hereinafter, another embodiment of the first embodiment will be described.

(1-1) In the first embodiment, the fixture unit 45 includes the nut 48 positioned on the inner peripheral surface of the auger drum 27 and the bolt 47 attached from the outer peripheral surface side of the auger drum. However, instead of such a configuration, the fixture unit 45 is configured by a bolt positioned on the inner peripheral surface of the auger drum 27 and a nut attached from the outer peripheral surface side of the auger drum 27. But you can. The fixture unit 45 is not limited to one configured with bolts and nuts, and various types of configurations such as a configuration using an adhesive or a configuration that is fixed by pressing with an elastic body can be used. .

(1-2) In the first embodiment, the sliding guide body 39 is formed with the convex portion 53 protruding outward in the radial direction, and the insertion hole 46 is formed inside the convex portion 53. Although the configuration is exemplified, instead of such a configuration, for example, the scraping body 28 is in a state where the position is changed in the direction along the peripheral surface of the auger drum 27 with respect to the portion where the convex portion 53 is formed. You may form the insertion hole which penetrates.
The slide guide 39 may not be formed with the convex portion 53 as described above, but may be aligned with the auger drum 27 only by the connection by the fixture unit 45.

(1-3) In the first embodiment, the inner fixing portion 50 of the fixture unit 45 includes the pair of nuts 48 and the connecting member 49 that connects the pair of nuts 48. Instead of this, a pair of nuts may be mounted separately.

(1-4) In the first embodiment, the fitting portion 54 into which the pair of nuts 48 and the connecting member 49 are fitted is formed on the inner peripheral surface of the sliding guide body 39. What does not form the fitting part 54 may be sufficient.

(1-5) In the first embodiment, an example of a harvesting machine applied to an ordinary combine harvester has been shown. However, other types of harvesting machines such as a corn harvesting machine may be used.

(2) [Second Embodiment]
A second embodiment as an example of the present invention will be described below with reference to the drawings.
FIG. 9 shows an ordinary combine which is an embodiment of a combine according to the present invention. A traveling machine body 102 having a pair of left and right crawler traveling devices 101 is connected to an axial flow type threshing device 103 and a grain storage device. Grain tanks 104 are arranged in parallel on the left and right.

An operation unit 105 is provided in front of the grain tank 104.
A feeder 106 for conveying the harvested cereal meal is connected to the front part of the threshing device 103 so as to be swingable up and down around the horizontal axis, and at the front end of the feeder 106 there is a harvesting part 107 having a cutting width substantially corresponding to the lateral width of the machine body. It is connected.

Rotating reel 108 for scraping the planted crops backward is provided above the front part of the cutting part 107. Further, a grain discharging device 109 for discharging the grains stored in the grain tank 104 to the outside is provided.

An engine 111 is mounted below the driver seat 110 in the driver 105, and a mission case 112 is provided below the front of the fuselage. Further, a main transmission (not shown) constituted by a hydrostatic continuously variable transmission is provided on the upper side of the mission case 112.

The cutting unit 107 includes a cutting unit frame 127 configured by connecting square pipes, angle members having an L-shaped cross section, and the like, a back plate 128 that forms a back surface, a transport deck 129 that forms a bottom surface, and left and right sides that form left and right side surfaces. A frame structure in which each of the pair of side plates 130 is connected and fixed is configured.
A clipper type mowing device 132 is provided along the front end of the transfer deck 129 and across the left and right side plates 130. Further, across the left and right side plates 130, a transverse feed auger 133 that assembles and conveys the harvested cereal mash K toward the middle in the lateral direction of the machine body is installed, so that the chopped cereal K can be supplied to the front end inlet of the feeder 106. It is configured.

The feeder 106 will be described.
As shown in FIGS. 9 to 11, the feeder 106 has a feeder case 137 formed in a rectangular tube shape, and a rear end portion side (corresponding to one end portion side) in the transport direction inside the feeder case 137. , A drive shaft 138 that is rotatably driven around the horizontal axis X1 along the left-right direction of the traveling machine body 102, and a pair of sprockets that are provided on the drive shaft 138 at intervals in the horizontal axis X1 direction. 139 and a drum (an example of a rotating body) 141 supported on the front end side (corresponding to the other end side) in the conveying direction of the feeder case 137 in a state of being rotatable around the horizontal axis X2, A pair of endless chains 142 wound around the sprocket 139 and the drum 141, and at a position spaced in the longitudinal direction of the endless chain 142, are taken sideways across the pair of endless chains 142. Attached, and a carrier 143 which moves the culms K the conveying direction hooking reaper with rotation of the endless chain 142, a tension adjusting mechanism 144 tension is adjustable to the endless chain 142, the.

In other words, the power from the engine 111 is transmitted to the drive shaft 138, and the pair of sprockets 139 rotate together with the drive shaft 138, whereby the endless chain 142 is rotationally driven. With the rotation of the endless chain 142, the transport body 143 moves along the transport direction, and the harvested cereal cake K can be transported.
In the present embodiment, the conveying path of the harvested grain culm K is a space between the lower chord side of the endless chain 142 and the bottom portion of the feeder case 137, and the sprocket 139 in the drawing is around the horizontal axis X1. The counterclockwise rotation state is the normal rotation state.

As shown in FIG. 11, the endless chain 142 is configured by connecting a number of link members L in a tandem state, and a pair of endless chains 142 are arranged in parallel at intervals in the width direction of the feeder 106. Yes.
As shown in FIG. 12, the basic structure of the link member L includes a pair of pins 142Aa (or bushings 142Ab) arranged in parallel at intervals in the column direction, and one end portions of the pair of pins 142Aa (or bushings 142Ab). And a pair of outer plates 142Ba (or inner plates 142Bb) that connect the other ends to each other, and a roller 142Ac that is externally fitted to the bush 142Ab.

Outer links L1 having a pair of pins 142Aa and a pair of outer plates 142Ba, and inner links L2 having a pair of bushings 142Ab and a pair of inner plates 142Bb are alternately arranged in the column direction.
The connecting portion between the outer link L1 and the inner link L2 is such that the pin 142Aa of the outer link L1 is fitted in the inner space of the bush 142Ab of the inner link L2, so that both links L1, L2 are around the pin 142Aa. It is connected in a swingable state.

The pin part 142A is provided with a pin 142Aa, a bush 142Ab, and a roller 142Ac. The pin 142A engages with a recess U of the sprocket 139 described later, whereby the rotational driving force of the sprocket 139 is transmitted to the endless chain 142, and the entire endless chain 142 circulates in the direction of the arrow in FIG. it can.

Of all the outer links L1, some of the outer links L1 arranged at intervals in the column direction have the above-mentioned state over the left and right endless chains 142 as shown in FIGS. A carrier 143 is attached.
Specifically, the corresponding outer link L1 is provided with a flange portion f for attaching the transport body 143 to the outer plate 142Ba, and the transport body 143 is screwed to the flange portion f.
In addition, the transport body 143 is configured by an elongated member having a “U” cross section, and the curved opening of the cross section “U” is attached so as to face outward of the circulation locus of the endless chain 142.

The endless chain 142 may use the offset link L3 interposed between the outer link L1 and the inner link L2 described above (see FIGS. 11 and 12). The length of the endless chain 142 can be adjusted by using the offset link L3. Further, the offset link L3 and the link L adjacent to the offset link L3 can be connected and disconnected by using a bolt nut (see FIG. 12) for the pin 142Aa, or by engaging a retaining locking pin with the rod-shaped pin. A structure (not shown) for stopping can be employed.

The pitch Pc of the pin portion 142A in the longitudinal direction of the endless chain 142 is set to the same value as the pitch Ps of the recess U of the sprocket 139 described later (see FIG. 13).

The sprocket 139 will be described.
As shown in FIG. 13, the sprocket 139 has a plurality of teeth H along the circumferential direction of the sprocket 139, and the pin portion 142 </ b> A of the endless chain 142 is engaged in the recess U between the adjacent teeth H. It is formed to be able to.
The concave portion U includes, on the other side in the circumferential direction, the side portion 150 on the other side in the circumferential direction of the teeth H located on one side in the circumferential direction (the circumferential direction of the sprocket 139) among the adjacent teeth H. The side part 152 of the one side in the said circumferential direction of the tooth | gear H located is provided, and the bottom part 151 over the other side part 150 and the one side part 152 is provided.

The bottom portion 151 is formed in a flat shape along the circumferential direction, and the other side portion 150 and the one side portion 152 are formed in a curved shape along the outer shape of the roller 142Ac of the endless chain 142. .
A boundary portion g between the bottom portion 151 and the other side portion 150 and a boundary portion g between the bottom portion 151 and the one side portion 152 are separated from the horizontal axis X1 that is the rotation center of the sprocket 139. Is equidistant.
The circumferential width 151a of the bottom 151 is set to 2 mm or more and 5 mm or less.

Accordingly, the pin portion 142A of the endless chain 142 that engages in the concave portion U can be positioned in the concave portion U at an arbitrary position in the range of the circumferential width 151a of the bottom portion 151.
As a result, as shown in FIG. 13, even if the pin portion 142A of the endless chain 142 is engaged with the recess U of the sprocket 139 while the cut grain K is fitted in the recess U, the pin portion 142A is By moving along the circumferential direction, it is possible to remove the harvested cereal mash K, and avoid a state of riding on the harvested cereal mash K.
Therefore, each adjacent pin part 142A can also maintain each engagement in the corresponding recessed part U in the state which shifted | deviated similarly, and can prevent the said tooth skip.

The tooth tip 153 of the tooth H is formed in a flat shape along the circumferential direction, and the circumferential width 153a of the tooth tip 153 is the outer diameter R of the roller 142Ac (outside the pin portion 142A). It is set to a larger value.

According to the combine of the second embodiment, even if the harvested culm K is sandwiched between the sprocket 139 and the endless chain 142, the tooth skip is less likely to occur as described above. This effect can be expected when the sprocket 139 rotates forward or backward.
Further, since the tooth tip 153 has a flat shape along the circumferential direction, it is difficult to get caught when the tooth tip 153 is fitted to the endless chain 142.
That is, it is possible to more suitably realize tooth skip prevention and smooth rotational driving force transmission between the sprocket 139 and the endless chain 142.

Hereinafter, another embodiment of the second embodiment will be described.

(2-1) The feeder 106 is not limited to the shape and structure described in the second embodiment. For example, the arrangement of the drum 141 and the sprocket 139 is the drum 141 on the front end side and the sprocket 139 on the rear end side. Instead of the example, the front end side may be a sprocket 139 and the rear end side may be a drum 141, which may be set on the opposite side.
Further, the rotating body 141 itself may be replaced with a drum and configured by a sprocket.
Further, the sprocket 139 is not limited to the one provided on the drive shaft 138 but may be disposed on the driven shaft.

(2-2) The sprocket 139 is not limited to the shape and structure described in the second embodiment, and can be changed as appropriate.
For example, the circumferential width 153a of the tooth tip 153 may be set to be equal to or smaller than the outer diameter of the pin portion 142A.
Further, the number of teeth H is not limited.

(2-3) The bottom 151 has a flat shape along the circumferential direction. However, the flat shape here is not limited to a simple flat surface, but a curved shape along the circumferential direction of the sprocket 139. In short, in the concave portion U, the pin portion 142A is a generic name including a flat shape including a flat shape within a range in which the pin portion 142A can be displaced along the circumferential direction except for the harvested rice cake K. To do.

(2-4) Not limited to the description of the second embodiment, the sprocket 139 having the flat bottom 151 may be applied to a feeder not provided with the tension adjusting mechanism 144 as shown in FIG. good.

As described above, the reference numerals are used for convenience of comparison with the drawings. However, the present invention is not limited to the configurations of the attached drawings. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.

[First Embodiment]
6 Feeder 18 Lateral feed auger 26 Spiral blade 27 Auger drum 28 Scratching body 39 Sliding guide body 45 Fixing unit 46 Insertion hole 47 Bolt 47a Bolt head 48 Nut (fastener)
50 Inner fixing portion 52 Opening 53 Protruding portion 55 Protruding portion 56 Extension guide portion 58 Plain washer 59 Spring washer [second embodiment]
DESCRIPTION OF SYMBOLS 102 Traveling machine body 106 Feeder 107 Cutting part 137 Feeder case 139 Sprocket 141 Drum (an example of a rotary body)
142 endless chain 142A pin portion 143 carrier 150 other side portion 151 bottom portion 151a circumferential width 152 one side portion 153 tooth tip 153a circumferential width g boundary portion H tooth K mowing grain R roller outer diameter Dimensions (equivalent to the outer diameter of the pin)
U Recess X1 Horizontal axis X2 Horizontal axis

Claims

A transverse feed auger that transports the harvested cereals in the lateral direction of the machine body, and a feeder that conveys the harvested cereal grains that have been transported rearward after being transported by the lateral feed auger to the rear side of the machine body,
The transverse auger
A cylindrical auger drum that is provided with a spiral blade for transferring cereals on the outer periphery and rotates around a horizontal axis;
A scraping body that rotates integrally with the rotation of the auger drum while the auger drum rotates and sends the harvested cereal meal to the feeder;
A harvesting machine, comprising: a sliding guide that is attached to an inner peripheral surface side of the auger drum and that slides and guides the scraping body so as to be freely retractable from the auger drum.
The said sliding guide body is fixed and attached by the fixture unit in the state which the location of the radial direction outer side of the said sliding guide body contact | connects the inner peripheral surface of the said auger drum. Harvesting machine.
The sliding guide body is formed with an insertion hole through which the scraping body is inserted,
Of the sliding guide body, on the portions located on both sides of the insertion hole in the circumferential direction of the auger drum, a protruding portion that protrudes toward the scraping body side is formed,
The harvesting machine according to claim 2, wherein the protruding portion is provided in a portion of the sliding guide body that is in contact with an inner peripheral surface of the auger drum.
The sliding guide body is formed with an insertion hole through which the scraping body is inserted,
The fixture unit is attached to the auger drum from the radially inner side, and includes an inner fixing portion that sandwiches the sliding guide body with an inner peripheral surface of the auger drum,
The harvesting machine according to claim 2, wherein the inner fixing portion is provided with an extension guide portion that extends an inner peripheral surface of the insertion hole radially inward.
The fixture unit is attached to the auger drum from the radially inner side, and includes an inner fixing portion that sandwiches the sliding guide body with an inner peripheral surface of the auger drum,
The harvesting machine according to claim 3, wherein the inner fixing portion is provided with an extension guide portion that extends an inner peripheral surface of the insertion hole radially inward.
The sliding guide body is formed with an insertion hole through which the scraping body is inserted,
The harvesting machine according to claim 2, wherein the sliding guide body is fixed to the auger drum by the fixture unit at each of the positions located on both sides of the insertion hole in the circumferential direction of the auger drum.
The sliding guide body is fixed to the auger drum by the fixture unit at each of the positions located on both sides of the insertion hole in the circumferential direction of the auger drum. Harvesting machine according to item.
The said fixture unit is provided with a pair of fasteners located in the both sides of the said insertion hole in the circumferential direction of the said auger drum, and the connection member which connects a pair of said fasteners. Harvesting machine.
The harvesting machine according to claim 8, wherein a fitting portion into which the pair of fasteners and the connecting member are fitted is formed on an inner peripheral surface of the sliding guide body.
A bolt inserted through the auger drum in a radial direction in a state where a bolt head is located on the outer peripheral side of the auger drum, and an inner peripheral side of the auger drum, and the bolt is fastened to the fixture unit. And a nut,
Between the bolt head and the outer peripheral surface of the auger drum, a flat washer that is in contact with the outer peripheral surface of the auger drum on the shaft of the bolt, and located between the flat washer and the bolt head The harvesting machine according to any one of claims 2 to 9, wherein a spring washer is mounted.
11. The protrusion according to claim 1, wherein the sliding guide body has a convex portion that protrudes radially outward and that fits into an opening formed in the auger drum. Harvester.
The harvesting machine according to claim 11, wherein an insertion hole through which the scraper is inserted is formed in a state where the inside of the convex portion in the sliding guide body is inserted along a radial direction.
A cutting part connected to the front part of the traveling body;
A feeder that conveys the harvested cereals harvested by the harvesting unit toward the rear of the traveling machine body, and
The feeder includes a feeder case,
Plurally located at one end side in the conveying direction in the feeder case, in a state of being rotatable around the horizontal axis along the left-right direction of the traveling machine body and spaced apart in the horizontal axis direction With sprockets,
On the other end side in the conveying direction in the feeder case, a rotating body supported in a rotatable state around the horizontal axis;
A plurality of endless chains wound around the sprockets and the rotating body;
A transport body attached across the plurality of endless chains at a position spaced in the longitudinal direction of the endless chain, and moving the harvested cereal meal in the transport direction as the endless chain rotates. ,
The sprocket includes a recess that is located between teeth adjacent to each other in the circumferential direction of the sprocket and into which a pin portion of the endless chain can be engaged,
The concave portion is a side portion on the other side in the circumferential direction of the teeth located on one side in the circumferential direction among the adjacent teeth, and the circumferential direction of a tooth located on the other side in the circumferential direction. A combine provided with a side portion on one side, a side portion on the other side and a side portion on the one side, and a flat bottom portion along the circumferential direction.
The combine according to claim 13, wherein a boundary portion between the bottom portion and the other side portion and a boundary portion between the bottom portion and the one side portion are equidistant from the rotation center of the sprocket.
The combine according to claim 13 or 14, wherein a shape of a tooth tip of the tooth is a flat shape along the circumferential direction.
The combine according to any one of claims 13 to 15, wherein a width of the tooth tip of the tooth in the circumferential direction is larger than an outer diameter of the pin portion.
The combine according to any one of claims 13 to 16, wherein a width of the bottom portion in the circumferential direction is not less than 2 mm and not more than 5 mm.