JP2021083313A - combine - Google Patents

Abstract

To increase a function of raking crops to an inlet in a reaping unit of a combine.SOLUTION: In a reaping unit 7, there are provided a cross-feed screw 17 having a body unit 30 and a spiral body 31 and conveying the cut crops along the horizontal direction toward an inlet 13. In the cross-feed screw 17, there are included multiple movable raking members 21-24 provided in a portion positioned in front of the inlet 13 in the body unit 30 and raking the crops to the inlet 13, while protruding radially outward from an outer circumferential surface of the body unit 30 in a front side area to the body unit 30 and getting into the inside of the body unit 30 in an area opposed to the inlet 13. In the cross-feed screw 17, there are included multiple fixation raking members 33 mounted in a portion positioned in front of the inlet 13 in the body unit 30 and raking the crops to the inlet 13, while protruding radially outward from the outer circumferential surface of the body unit 30.SELECTED DRAWING: Figure 3

Description

The present invention relates to the configuration of a harvesting section for harvesting field crops in a combine harvester.

In the combine harvester, as disclosed in Patent Document 1, the harvester is provided with a cutting frame having left and right horizontal frames, a bottom portion, and a rear wall portion, and is provided with a cutting device and a lateral feed screw. Is supported by the harvesting frame.

As the machine progresses, the roots of the crops in the field are cut by the cutting device, and the cut crops are moved to the left and right by the lateral feed screw toward the input port provided on the rear wall of the cutting frame. Transported along. The crops are fed into the transport device from the input port, transported to the threshing device by the transport device, and threshed in the threshing device.

In Patent Document 1, in the lateral feed screw, a plurality of movable scraping members are provided at a portion of the main body of the lateral feed screw located in front of the insertion port.
The movable scraping member protrudes radially outward from the outer peripheral surface of the main body of the lateral feed screw in the region on the front side with respect to the main body of the lateral feed screw, and the main body of the lateral feed screw in the region facing the insertion port. It is configured to go inside the.

As the lateral feed screw is rotationally driven, the movable scraping member is rotationally driven together with the lateral feed screw while operating as described above, and the movable scraping member scrapes the crop into the input port. Be included.
By entering the inside of the main body of the lateral feed screw in the region where the movable scraping member faces the input port, the crop can be easily separated from the movable scraping member. As a result, the crop entwined with the movable scraping member is less likely to be returned from the area facing the input port to the area on the front side of the main body of the lateral feed screw without being input to the input port. ..

Japanese Unexamined Patent Publication No. 2015-165816

In the lateral feed screw, the movable scraping member makes it easier for the crop to separate from the movable scraping member by entering the inside of the main body of the lateral feed screw in the region facing the inlet. The ability to scrape crops into the inlet is reduced. As a result, it is necessary to enhance the function of scraping the crop into the input port so that the crop can be harvested in a large amount by the cutting section.

An object of the present invention is to enhance the function of scraping crops into the input port in the harvesting section of the combine harvester.

The combine of the present invention includes a cutting unit for harvesting crops in a field, a transport device for transporting the crops harvested by the harvesting section from the cutting section, and a grain removal device for degraining the crops transported by the transport device. The harvesting section is provided with a cutting frame having left and right horizontal frames, a bottom portion, and a rear wall portion, an input port provided in the rear wall portion so as to feed crops into the transport device, and a field. It has a cutting device supported by the cutting frame so as to cut the root of the crop, a main body portion that is rotationally driven around the axis along the left-right direction, and a spiral body attached to the outer peripheral surface of the main body portion. A lateral feed screw supported by the cutting frame is provided so as to transport the crop cut by the cutting device toward the input port in the left-right direction. On the other hand, it is located in front of the insertion port in the main body portion in a state of protruding outward in the radial direction from the outer peripheral surface of the main body portion in the front side region and entering the inside of the main body portion in the region facing the insertion port. A plurality of movable scraping members provided in the portion and scraping the crop into the input port are provided, and the lateral feed screw is in a state of protruding outward in the radial direction from the outer peripheral surface of the main body portion, and the said in the main body portion. It is attached to a portion located in front of the input port and is provided with a plurality of fixed scraping members that scrape the crop into the input port.

According to the present invention, in the lateral feed screw provided in the cutting portion, in addition to the plurality of movable scraping members being provided in the portion of the main body portion of the lateral feed screw located in front of the insertion port, a plurality of movable scraping members are provided. A fixed scraping member is provided.

According to the present invention, in the region on the front side with respect to the main body portion of the lateral feed screw, the crop is scraped by the movable scraping member and the fixed scraping member protruding radially outward from the outer peripheral surface of the main body portion of the lateral feed screw. Is done.

In the area facing the input port, the movable scraping member enters the inside of the main body of the lateral feed screw, so that the crop can be easily separated from the movable scraping member, and the movable scraping member can scrape the crop into the input port. Decreases.
In this case, even in the region facing the input port, the fixed scraping member exerts the function of scraping the crop into the input port, and the movable scraping member reduces the function of scraping the crop into the input port. , Supplemented by a fixed scraping member.
As described above, in the lateral feed screw, by providing the fixed scraping member in addition to the movable scraping member, the function of scraping the crop into the input port can be enhanced.

In the present invention, the fixed scraping member is a portion of the fixed scraping member that is closer to the outermost portion in the radial direction of the main body of the fixed scraping member so that the fixed scraping member is attached to the main body. It is preferable that the virtual line passing through the shaft core is configured to be separated from the imaginary line in the direction opposite to the rotation direction of the main body.

According to the present invention, the portion of the fixed scraping member that hits the crop has a receding angle with respect to the rotation direction of the lateral feed screw. Therefore, in the region facing the loading port, the fixed scraping member feeds the crop. The crop is more likely to separate from the fixed scraping member after being scraped into.

As a result, the crop entwined with the fixed scraping member is less likely to be returned to the area on the front side of the main body of the lateral feed screw from the area facing the input port without being input to the input port. ..

In the present invention, it is preferable that the outermost portion of the main body portion of the fixed scraping member in the radial direction is extended to a position corresponding to the outer peripheral portion of the spiral body in a side view.

According to the present invention, the function of scraping the crop into the input port by the fixed scraping member is high.

In the present invention, it is preferable that the fixed scraping member is arranged with a left-right interval along the left-right direction.

According to the present invention, by arranging the fixed scraping members with a left-right spacing along the left-right direction, the fixed scraping member can scrape crops in a relatively wide area in the left-right direction. Even if the fixed scraping member is not provided more than necessary, the function of scraping the crop into the input port by the fixed scraping member is high.

In the present invention, it is preferable that the fixed scraping member is arranged with the same left-right spacing along the left-right direction.

According to the present invention, by arranging the fixed scraping members with the same left-right spacing along the left-right direction, even if the fixed scraping members are not provided more than necessary, the fixed scraping members can be used for the crop input port. The scraping function is high.

In the present invention, a substrate member is provided which is extended along the left-right direction and the fixed scraping member is attached along the left-right direction with the left-right spacing, and the substrate member is attached to the main body portion. It is preferable to have.

According to the present invention, since a plurality of fixed scraping members are supported by the substrate member and the plurality of fixed scraping members and the substrate member form one unit, it is easy to handle the plurality of fixed scraping members and the substrate member. This makes it easy to attach a plurality of fixed scraping members to the main body of the lateral feed screw.

In the present invention, it is preferable that a reinforcing member attached to the outer peripheral surface of the main body portion along the left-right direction to reinforce the main body portion is provided, and the substrate member is attached to the reinforcing member.

When crops are collected toward the input port by the lateral feed screw in the cutting section, the collected crops may cause a load to bend the main body of the lateral feed screw.
According to the present invention, a reinforcing member for reinforcing the main body of the lateral feed screw is attached to the outer peripheral surface of the main body of the lateral feed screw along the left-right direction, and the strength of the main body of the lateral feed screw is increased.

According to the present invention, in a plurality of fixed scraping members and substrate members, the substrate members can be easily attached to the reinforcing members by being the substrate members along the left-right direction and being the reinforcing members along the left-right direction. Can be done.
By attaching the substrate member to the reinforcing member, it can be expected that the substrate member also functions as a part of the reinforcing member, so that the strength of the main body portion of the lateral feed screw is increased.

In the present invention, a plurality of sets of the movable scraping members arranged so as to be arranged along the left-right direction are arranged in a lateral view with a circumferential interval along the circumferential direction of the main body portion. It is preferable that the fixed scraping member is arranged between two sets of the movable scraping members adjacent to each other in a side view.

According to the present invention, since the fixed scraping member is arranged between two sets of movable scraping members adjacent to each other in a side view, the movable scraping member and the fixed scraping member simultaneously scrape the same crop. Instead, the movable scraping member and the fixed scraping member alternately scrape the crop.

As a result, it is unlikely that the movable scraping member and the fixed scraping member will interfere with each other for their respective scraping functions. Especially in the region facing the input port, the fixed scraping member rarely interferes with the state where the movable scraping member enters the inside of the main body of the lateral feed screw and the crop is easily separated from the movable scraping member. ..

In the present invention, it is preferable that the fixed scraping member is arranged only between one of two sets of adjacent movable scraping members in a side view.

According to the present invention, since the fixed scraping member is arranged only between one of the two sets of the movable scraping members adjacent to each other in the side view, the crop entwined with the fixed scraping member is input. It is possible to reduce the situation where the lateral feed screw is returned to the region on the front side of the main body of the lateral feed screw from the region facing the inlet without being inserted into the mouth.

In the present invention, it is preferable that the fixed scraping member is formed in a round cross section.

According to the present invention, the crop is less likely to get entangled with the fixed scraping member, and the crop is easily separated from the fixed scraping member.
This reduces the situation in which the crops entwined with the fixed scraping member are not thrown into the loading port and are returned from the area facing the loading port to the area on the front side of the main body of the lateral feed screw. be able to.

It is a left side view of the combine. It is a top view of the cutting part. It is the left side view of the vertical section in the vicinity of the lateral feed screw and the transport device in a cutting part. It is an exploded perspective view of a lateral feed screw and a fixed scraping member. It is a cross-sectional plan view in the vicinity of a lateral feed screw and a transport device in a cutting part. It is a vertical sectional left side view of a lateral feed screw. It is a perspective view of the fixed scraping member. It is a developed view which shows the arrangement of a spiral body, a movable scraping member, and a fixed scraping member in a lateral feed screw. It is an exploded perspective view near the guide member.

FIGS. 1 to 9 show a conventional combine, in which F indicates a forward direction, B indicates a backward direction, U indicates an upward direction, and D indicates a downward direction. Indicated, R indicates the right direction, and L indicates the left direction.

(Overall composition of combine harvester)
As shown in FIG. 1, the body 1 is supported by the right and left crawler type traveling devices 2. The driver unit 3 on which the worker is boarding is provided on the right side of the front portion of the machine body 1. The threshing device 4 is provided on the left side of the rear part of the machine body 1, and the grain tank 5 is provided on the right side of the rear part of the machine body 1.

The rear portion of the transport device 6 is supported by the front portion of the threshing device 4 so as to swing up and down around the axis P1 along the left-right direction, and the transport device 6 extends to the front side. A cutting section 7 is connected to the front portion of the transport device 6, and a cutting section 7 for harvesting crops in the field is provided at the front portion of the machine body 1.

An elevating cylinder 8 which is an elevating mechanism is connected to the machine body 1 and the transport device 6. The lifting cylinder 8 swings the transport device 6 up and down, so that the cutting unit 7 and the transport device 6 are lifted and lowered.

With the above configuration, the crops in the field are introduced into the cutting unit 7 and harvested as the machine body 1 progresses, and the crops are transported through the transport device 6 and supplied to the threshing device 4. The crop is threshed by the threshing device 4, and the grains recovered by threshing by the threshing device 4 are stored in the grain tank 5.

(Overall composition of the cutting section)
As shown in FIGS. 1, 2 and 3, the cutting unit 7, the cutting frame 9, the weeding tool 14, the scraping reel 15, the cutting device 16, the lateral feed screw 17, and the scraping member are movable. The scraping members 21, 22, 23, 24, 25 and the fixed scraping member 33 are provided.

The cutting frame 9 serves as a skeleton of the cutting portion 7. In the cutting frame 9, an arcuate bottom portion 10 in a side view is provided over the entire width of the cutting portion 7 in the left-right direction. The rear wall portion 11 is connected to the rear portion of the bottom portion 10, and the right and left horizontal frames 12 are connected to the right portion and the left portion of the bottom portion 10 and the rear wall portion 11.

A slot 13 is provided in the rear wall portion 11. The front portion of the transport device 6 is connected to the portion of the input port 13 in the rear wall portion 11, and the cutting portion 7 is connected to the front portion of the transport device 6.
The right and left weeding tools 14 are connected to the front of the right and left lateral frames 12. The scraping reel 15 is supported on the upper part of the cutting frame 9, and the clipper type cutting device 16 is supported on the front part of the cutting frame 9 (bottom 10).

A lateral feed screw 17 is attached to the right and left lateral frames 12 of the cutting frame 9 and is supported by the cutting frame 9. Movable scraping members 21 to 25 and fixed scraping members 33, which are scraping members, are provided on the lateral feed screw 17.

(Structure of scraping reel)
As shown in FIGS. 1, 2 and 3, the right and left rotating frames 18, a plurality of frames 19 attached to the right and left rotating frames 18, and the frames 19 downward as shown in FIGS. A large number of attached tines 20 are provided.

The right and left support frames 26 that rotatably support the right and left portions of the scraping reel 15 (rotary frame 18) around the axis P2 along the left-right direction, and the right and left support frames 26. A connecting frame 27 that is connected is provided.

A plurality of stays 28 are connected to the upper portion 11a of the rear wall portion 11 of the cutting portion 7 (cutting frame 9). The connecting frame 27 is supported by the upper portion 11a of the rear wall portion 11 of the cutting portion 7 (cutting frame 9) in a state along the left-right direction, and is rotatably supported around the axis P3 along the left-right direction. ..

With the above configuration, as the machine body 1 advances, the scraping reel 15 is rotationally driven in the counterclockwise direction of FIG. 1, the crops in the field are scraped by the scraping reel 15, and the root of the crops in the field is raised. , It is cut by the cutting device 16.

Right and left elevating cylinders 29 are connected to the horizontal frame 12 and the support frame 26. The height of the scraping reel 15 with respect to the cutting device 16 and the lateral feed screw 17 is changed by swinging the support frame 26 and the connecting frame 27 around the shaft core P3 by the elevating cylinder 29.

(Structure of lateral feed screw)
As shown in FIGS. 2, 3, 4, and 5, the lateral feed screw 17 is provided with a main body 30, spiral bodies 31, 32, movable scraping members 21 to 25, and fixed scraping members 33.

The main body 30 is formed in a cylindrical shape, and a disk-shaped right side portion 30a, left side portion 30b, and intermediate portions 30c and 30d are connected to the inside of the main body portion 30.
The drive shaft 34 is rotatably supported at the position of the shaft core P4 of the right horizontal frame 12, and the drive shaft 34 is connected to the right side portion 30a and the intermediate portion 30c of the main body portion 30. The fulcrum shaft 35 is rotatably connected to the position of the shaft core P4 of the left horizontal frame 12, and the left side portion 30b of the main body portion 30 is rotatably supported by the fulcrum shaft 35 by a bearing.

The spiral body 31 is attached to the outer peripheral surface of the main body 30 in a region on the right side of the portion of the main body 30 located in front of the insertion port 13. The spiral body 32 is attached to the outer peripheral surface of the main body 30 in the region on the left side from the portion of the main body 30 located in front of the insertion port 13. The spiral bodies 31 and 32 are not provided in the portion of the main body 30 located in front of the insertion port 13.

At a portion of the main body 30 located in front of the insertion port 13, an elongated flat plate-shaped reinforcing member 42 is attached to the outer peripheral surface of the main body 30 along the left-right direction, and the right end portion and the left end portion of the reinforcing member 42 are attached. It is connected to the spiral bodies 31 and 32, and the main body 30 is reinforced by the reinforcing member 42.

The reinforcing member 42 is attached in an inclined posture having a receding angle in a side view with respect to the rotation direction A1 of the lateral feed screw 17, which will be described later. A plurality of triangular support plates 43 when viewed from the side are attached over the reinforcing member 42 and the main body portion 30, and the inclined posture of the reinforcing member 42 is maintained.

The movable scraping member 21 to 24 and the fixed scraping member 33 are provided in a portion of the main body 30 located in front of the insertion port 13, and the movable scraping member 25 is in front of the insertion port 13 in the main body 30. It is provided in the area on the right side from the part located in.

With the above configuration, the lateral feed screw 17 (main body portion 30) is supported by the cutting frame (right and left lateral frames 12) so as to be rotatable around the axis P4 along the left-right direction. By transmitting the power to the drive shaft 34, the lateral feed screw 17 (main body portion 30) is rotationally driven by the drive shaft 34 in the rotation direction A1 around the shaft core P4.

The crops that have been scraped by the scraping reel 15 and cut by the cutting device 16 are conveyed to the right by the spiral body 31 toward the loading port 13 by the transverse feed screw 17, and left toward the loading port 13 by the spiral body 32. Will be transported to. In the portion of the lateral feed screw 17 (main body 30) located in front of the input port 13, the crop is scraped into the input port 13 by the movable scraping members 21 to 24 and the fixed scraping member 33.

(Structure of movable scraping member)
As shown in FIGS. 3, 4, 5 and 6, the fulcrum shaft 36 is supported inside the main body 30 at the position of the shaft core P4 of the intermediate portion 30d of the main body 30 via a bearing. The fulcrum shaft 37 is connected to the arm portion 35a fixed forwardly to the end of the fulcrum shaft 35 and the arm portion 36a fixed forward to the left end of the fulcrum shaft 36.

An arm portion 39 is forwardly supported at the end of the drive shaft 34 via a bearing, and the fulcrum shaft extends over the arm portion 36b fixed forward to the right end of the fulcrum shaft 36 and the arm portion 39. 38 are connected.

By connecting the fulcrum shafts 36, 37, and 38 to the fulcrum shaft 35, even if the lateral feed screw 17 (main body portion 30) is rotationally driven as described in the above (configuration of the lateral feed screw), the fulcrum is fulcrum. The shafts 36, 37, and 38 are fixed at the positions of the shaft cores P5 along the left-right direction.

Eight boss members 40 are rotatably attached to the fulcrum shaft 37, and one boss member 41 is rotatably attached to the fulcrum shaft 38. The movable scraping members 21 to 24 are connected to the boss member 40 and protrude radially outward from the opening of the main body 30, and the movable scraping member 25 is connected to the boss member 41 and is connected to the main body 30. It protrudes radially outward from the opening of.

With the above configuration, when the main body 30 is rotationally driven around the shaft core P4 in the rotation direction A1, the movable scraping members 21 to 25 rotate together with the main body 30 around the shaft core P5. It is rotationally driven in the direction A1.

Since the shaft core P5 is located on the front side with respect to the shaft core P4, in the lateral feed screw 17, the movable scraping members 21 to 25 are located on the outer peripheral surface of the main body portion 30 in the region on the front side with respect to the main body portion 30. It protrudes outward in the radial direction from the above, and enters the inside of the main body 30 in the region facing the insertion port 13.

(Structure of fixed scraping member)
As shown in FIGS. 3, 4, 6 and 7, the fixed scraping member 33 is formed by bending a rod-shaped member having a circular cross section and a circular cross section into an arc shape, and six fixed scraping members are formed. A member 33 is provided.

An elongated flat plate-shaped substrate member 44 extending along the left-right direction is provided, and the six fixed scraping members 33 are fixed so as to be arranged with the same left-right spacing W1 along the left-right direction. The base portion 33a of the scraping member 33 is attached to the substrate member 44 by welding. The substrate member 44 is attached to the reinforcing member 42 by bolts, and the fixed scraping member 33 and the substrate member 44 are attached to the main body 30 via the reinforcing member 42.

With the above configuration, in the lateral feed screw 17, a plurality of fixed scraping members 33 are arranged in a state of protruding outward in the radial direction from the outer peripheral surface of the main body 30 and with the same left-right spacing W1 along the left-right direction. In this state, it is attached to a portion of the main body 30 located in front of the insertion port 13.

As shown in FIGS. 6 and 7, when the virtual line B1 passing through the portion (base 33a) where the fixed scraping member 33 is attached to the main body 30 and the shaft core P4 is assumed in the side view, the fixed scraping member 33 is viewed from the side so that the closer the fixed scraping member 33 is to the outermost portion 33b of the main body 30 in the radial direction, the farther away the virtual line B1 is from the rotation direction A1 of the main body 30. It is configured in.
In the fixed scraping member 33, the outermost portion 33b of the main body portion 30 in the radial direction is extended to a position corresponding to the outer peripheral portions of the spiral bodies 31 and 32 in a side view.

(Position of movable scraping member and spiral body in lateral feed screw)
As shown in FIGS. 6 and 8, in the main body 30 of the lateral feed screw 17, when the phases C1, C2, C3, and C4 are assumed at intervals of 90 degrees along the circumferential direction, the left end portion of the spiral body 31 is assumed. 31a is located in phase C3 (or in the vicinity of phase C3), and the right end 32a of the spiral body 32 is located in phase C1 (or in the vicinity of phase C1).

The left end portion 31a of the spiral body 31 is the rearmost portion of the spiral body 31 in the rotation direction A1, and is the portion of the spiral body 31 that is closest to the left and right central portions of the insertion port 13 in the left-right direction.
The right end portion 32a of the spiral body 32 is the rearmost portion of the spiral body 32 in the rotation direction A1, and is the portion of the spiral body 32 that is closest to the left and right central portions of the insertion port 13 in the left-right direction.

The two movable scraping members 21 are arranged so as to be arranged along the left-right direction in the phase C1. The two movable scraping members 22 are arranged so as to be arranged along the left-right direction in the phase C2.

The two movable scraping members 23 are arranged so as to be arranged along the left-right direction in the phase C3. The two movable scraping members 24 are arranged so as to be arranged along the left-right direction in the phase C4. One movable scraping member 25 is arranged between the phase C1 and the phase C4.

As a result, a plurality of sets of movable scraping members 21 to 24 arranged so as to be lined up in the left-right direction are formed with a circumferential interval W2 (angle) along the circumferential direction of the main body 30 in a side view. It is in a state of being arranged in pairs.

By rotationally driving the lateral feed screw 17 (main body portion 30) in the rotation direction A1, the movable scraping member 21 passes through the loci L1 and L5, and the left end portion 31a of the spiral body 31 has the locus L1 (or locus L1). (Near L1).

The movable scraping member 22 passes through the loci L3 and L7. The movable scraping member 23 passes through the loci L4 and L8. The movable scraping member 24 passes through the loci L2 and L6. The right end portion 32a of the spiral body 32 passes through the locus L8 (or in the vicinity of the locus L8). In this way, the movable scraping members 21 to 24 pass through different trajectories L1 to L8.

(Position of fixed scraping member in lateral feed screw)
As shown in FIGS. 6 and 8, in the main body 30 of the lateral feed screw 17, the reinforcing member 42 is arranged between the phases C1 and C2, and the position where the reinforcing member 42 is arranged is the spiral body 32. It is a position slightly separated from the right end portion 32a of the above on the opposite side of the rotation direction A1.

Between the phases C1 and C2, between the phases C2 and C3, between the phases C3 and C4, and between the phases C4 and C1, in the left-right direction of the spiral body 31 and the spiral body 32 between the phases C1 and C2. The distance between the two is larger than the distance between the spiral body 31 and the spiral body 32 in the left-right direction.

With the fixed scraping member 33 (board member 44) attached to the reinforcing member 42, the fixed scraping member 33 has a set of adjacent movable scraping members 21 and a set of movable scraping members 22 in a side view. It is placed between the two sets of.
The fixed scraping member 33 is between one of the two sets of the adjacent movable scraping members 21 to 24 (between the set of the movable scraping member 21 and the set of the movable scraping member 22) in the side view. ) Is placed only.

With the fixed scraping member 33 (board member 44) attached to the reinforcing member 42, the distance W3 between the fixed scraping member 33 at the left end and the spiral body 32 in the left-right manner is the fixed scraping member 33 at the right end. It is larger than the distance W4 between the spiral body 31 and the spiral body 31 in the left-right method.

With the fixed scraping member 33 (board member 44) attached to the reinforcing member 42, of the six fixed scraping members 33, the four fixed scraping members 33 on the left and right center sides have loci L2 and L4. , L6, L8. The fixed scraping member 33 at the right end passes on the right side with respect to the locus L1, and the fixed scraping member 33 at the left end passes on the left side with respect to the locus L8.

In the fixed scraping member 33 and the movable scraping members 21 and 22 adjacent to the fixed scraping member 33 in the circumferential direction, the fixed scraping member 33 and the movable scraping members 21 and 22 have different trajectories L1 and 2. Pass through L8.

(Structure of transport device)
As shown in FIGS. 1, 3 and 5, the transport device 6 is provided with a drive rotating body 46, a driven rotating body 47, a transport chain 48, a transport member 49 and a case 45, and the drive rotating body 46 and the driven rotating body 46. 47, the transport chain 48 and the transport member 49 are covered with the case 45.

The case 45 has an upper surface portion 45a, a lower surface portion 45b, and right and left lateral surface portions 45c, and is formed in a cylindrical shape having a rectangular cross section. The front portion of the case 45 is a rear wall portion of the cutting frame 9. It is connected to the portion of the input port 13 in 11.

Inside the case 45, the drive rotating body 46 is rotatably supported at the position of the shaft core P1, and the driven rotating body 47 is rotatably supported around the shaft core P6 along the left-right direction. The right and left transport chains 48 are attached across the drive rotating body 46 and the driven rotating body 47, and a plurality of transport members 49 are attached across the right and left transport chains 48.
The drive rotating body 46 is rotationally driven by the transmitted power, and the driven rotating body 47, the transport chain 48, and the transport member 49 are rotationally driven in the rotation direction A2.

With the above configuration, as described in the above-mentioned (configuration of the lateral feed screw), the crop is scraped into the input port 13 by the movable scraping members 21 to 24 and the fixed scraping member 33 in the lateral feed screw 17. When fed to the transport device 6, in the transport device 6, the crop is transported along the lower surface portion 45b of the case 45 by the transport member 49 and is fed to the threshing device 4.

(Structure of guide member)
As shown in FIG. 1, the guide member 50 is provided above the transfer device 6. As shown in FIGS. 2, 3 and 9, the guide member 50 is formed by bending a flat plate, and has an upper surface portion 50a, a front portion 50b, right and left side surface portions 50c, a mounting portion 50d, and a cut. The notch 50e is provided in the guide member 50.

In the guide member 50, the upper surface portion 50a and the front portion 50b are flat, and the front portion 50b is bent and extends downward. The right and left lateral surface portions 50c are flat and extend downward from the right end portion and the left end portion of the upper surface portion 50a. The mounting portion 50d is provided at the rear end portion of the upper surface portion 50a, and the notch portion 30e is formed at the right end portion of the rear end portion of the upper surface portion 50a.

With the guide member 50 provided above the transport device 6, the mounting portion 50d of the guide member 50 is bolted to the upper surface 45a of the case 45, and the front portion 50b of the guide member 50 is bolted to the stay 28. Has been done.

(Arrangement state of guide members)
In a state where the guide member 50 is provided above the transport device 6, the relationship between the guide member 50 and each part is as described below.

As shown in FIGS. 1 and 2, the guide member 50 (upper surface portion 50a) is in a forward-down inclined posture in a working state in which the cutting portion 7 is lowered to the ground.
As shown in FIGS. 2 and 9, the width W5 of the guide member 50 (upper surface portion 50a) is set to be substantially the same as the width W6 of the case 45, and the guide member 50 (upper surface portion 50a) is the case 45. It is provided over the entire width in the left-right direction.

As shown in FIGS. 2, 3 and 9, the front portion 50b of the guide member 50 passes above the connecting frame 27 of the scraping reel 15 and the upper portion 11a of the rear wall portion 11 of the cutting portion 7 (cutting frame 9). , The connecting frame 27 and the rear wall portion 11 are extended to the front side of the upper portion 11a.

In the front portion 50b of the guide member 50, the portion on the front side of the connecting frame 27 and the portion on the front side of the upper portion 11a of the rear wall portion 11 are bent downward and extended, and the front surface of the upper portion 11a of the rear wall portion 11 is extended. It is formed downward so as to face the portion 11ab.

The front portion 50b of the guide member 50 is arranged close to the front portion 11ab of the upper portion 11a of the rear wall portion 11, and the front portion 50b of the guide member 50 is the rear wall portion of the cutting portion 7 (cutting frame 9). It is connected to the stay 28 provided in 11.

The lower end portions of the right and left lateral surface portions 50c of the guide member 50 are in contact with the right end portion and the left end portion of the upper surface portion 45a of the case 45, and the downward portion and the lateral surface portion of the front portion 50b of the guide member 50. The connecting frame 27 and the upper portion 11a of the rear wall portion 11 are arranged along the left-right direction between the 50c and the connecting frame 27.

The right side surface portion 50c of the guide member 50 closes the space between the right portion of the guide member 50 and the upper surface portion 45a of the case 45. The left side surface portion 50c of the guide member 50 closes the space between the left portion of the guide member 50 and the upper surface portion 45a of the case 45.

As shown in FIG. 2, a light 51 that illuminates the scraping reel 15 and the lateral feed screw 17 is attached to a stay 28 provided on the right side of the upper portion 11a of the rear wall portion 11.
The harness 52 from the machine body 1 extends forward along the transport device 6 (case 45) and enters the inside of the guide member 50 (inside the right lateral surface portion 50c) from the notch 50e of the guide member 50. I'm out. The harness 52 passes through the inside of the guide member 50, protrudes to the right from between the downward portion of the front portion 50b of the guide member 50 and the right lateral surface portion 50c, and is connected to the light 51.

(First alternative form of carrying out the invention)
The fixed scraping member 33 may be formed of a rod-shaped member having an elliptical cross section having a round cross section, or may be formed of a hollow pipe having a circular cross section or an elliptical cross section having a round cross section.

The fixed scraping member 33 may be formed by bending a rod-shaped member or a hollow pipe into a triangular shape, a circular shape or an elliptical shape in a side view, and is not a rod-shaped member or a hollow pipe but a triangular shape in a side view. , It may be composed of a flat plate-shaped member having a circular shape or an elliptical shape.

(Second alternative form of carrying out the invention)
In the fixed scraping member 33, 5 or less or 7 or more fixed scraping members 33 may be provided.

In the circumferential direction of the lateral feed screw 17, the fixed scraping member 33 has two or more of the phases C1 and C2, the phases C2 and C3, the phases C3 and C4, and the phases C4 and C1. It may be arranged between them, and the fixed scraping member 33 may be arranged in the same phase C1 to C4 as the movable scraping members 21 to 24.

(Third alternative form of carrying out the invention)
Rather than the plurality of fixed scraping members 33 being arranged with the same left-right spacing W1 along the left-right direction, the left-right spacing W1 of adjacent fixed scraping members 33 may be configured to be different from each other.

In the lateral feed screw 17, the substrate member 44 may be attached to the outer peripheral surface of the main body 30 instead of the reinforcing member 42.
When the substrate member 44 is abolished, the fixed scraping member 33 may be attached to the reinforcing member 42, or the fixed scraping member 33 may be attached to the outer peripheral surface of the main body 30.

(Fourth alternative form of carrying out the invention)
In the movable scraping members 21 to 24, three or more movable scraping members 21 may be provided. Three or more movable scraping members 22 may be provided. Three or more movable scraping members 23 may be provided. Three or more movable scraping members 24 may be provided.
In the circumferential direction of the lateral feed screw 17, the movable scraping members 21 to 24 may be arranged in two phases or three phases, or may be arranged in five or more phases.

The present invention can be applied to a conventional combine harvester.

4 Threshing device 6 Transport device 7 Mowing part 9 Mowing frame 10 Bottom 11 Rear wall part 12 Horizontal frame 13 Input port 16 Cutting device 17 Horizontal feed screw 21 Movable scraping member 22 Movable scraping member 23 Movable scraping member 24 Movable scraping member Member 30 Main body 31 Spiral 32 Spiral 33 Fixed scraping member 33b Outermost 42 Reinforcing member 44 Board member B1 Virtual line P4 Axial core W1 Left-right spacing W2 Circumferential spacing

Claims (10)

It is provided with a cutting unit for harvesting crops in the field, a transport device for transporting the crops harvested by the harvesting section from the cutting section, and a threshing device for threshing the crops transported by the transport device.
A cutting frame having left and right horizontal frames, a bottom portion, and a rear wall portion in the cutting portion, an input port provided in the rear wall portion so as to feed the crop into the transport device, and a stock source of the crop in the field. The cutting device has a cutting device supported by the cutting frame so as to cut the crop, a main body portion that is rotationally driven around the axis along the left-right direction, and a spiral body attached to the outer peripheral surface of the main body portion. A lateral feed screw supported by the cutting frame is provided so as to transport the crops cut by the crop toward the input port in the left-right direction.
In the lateral feed screw, the main body is in a state of protruding outward in the radial direction from the outer peripheral surface of the main body in a region on the front side with respect to the main body and entering the inside of the main body in a region facing the insertion port. A plurality of movable scraping members provided in a portion of the section located in front of the loading port and scraping the crop into the loading port are provided.
A plurality of fixings of the lateral feed screw, which are attached to a portion of the main body portion located in front of the input port in a state of protruding outward in the radial direction from the outer peripheral surface of the main body portion, and scrape the crop into the input port. A combine equipped with a scraping member. The fixed scraping member is closer to the outermost portion of the fixed scraping member in the radial direction in the side view, the portion where the fixed scraping member is attached to the main body portion and the shaft core. The combine according to claim 1, wherein the combine is configured to be separated from the virtual line passing through the main body in the direction opposite to the rotation direction of the main body. The combine according to claim 1 or 2, wherein in the fixed scraping member, the outermost portion of the main body portion in the radial direction is extended to a position corresponding to the outer peripheral portion of the spiral body in a side view. The combine according to any one of claims 1 to 3, wherein the fixed scraping member is arranged with a left-right interval along the left-right direction. The combine according to claim 4, wherein the fixed scraping member is arranged along the left-right direction with the same left-right spacing. A substrate member extending along the left-right direction and having the fixed scraping member attached with the left-right spacing along the left-right direction is provided.
The combine according to claim 4 or 5, wherein the substrate member is attached to the main body. A reinforcing member that is attached to the outer peripheral surface of the main body portion in the left-right direction and reinforces the main body portion is provided.
The combine according to claim 6, wherein the substrate member is attached to the reinforcing member. A plurality of sets of the movable scraping members arranged so as to be arranged along the left-right direction are arranged in a lateral view with a circumferential interval along the circumferential direction of the main body portion.
The combine according to any one of claims 1 to 7, wherein the fixed scraping member is arranged between two sets of adjacent movable scraping members in a side view. The combine according to claim 8, wherein the fixed scraping member is arranged only between one of two sets of adjacent movable scraping members in a side view. The combine according to any one of claims 1 to 9, wherein the fixed scraping member is formed in a round cross section.

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