JP2021141856A - combine - Google Patents

Abstract

To provide a combine that can reduce a risk of unreaped grain culms and the like coming into contact with an endless turning body.SOLUTION: A reaping part 2 in a front part of a machine body is provided with a raising device 19 for raising planted grain culms, a cutting device 20 for cutting roots of the raised planted grain culms and reaping the grain culms, and a grain culm conveyance part H for conveying the reaped grain culms backward. The grain culm conveyance part H is provided with endless turning bodies 42 and 68 that turn along a circulation route. The circulation route of the endless turning bodies 42 and 68 is provided with a sending path that acts on the grain culms in a state of being positioned inside the machine body and a return path exposed on a lateral side in a state of being positioned outside the machine body. A cover member 80 is provided, which is positioned on a lateral side of the return path of the grain culm conveyance part H, and extends along the return path.SELECTED DRAWING: Figure 3

Description

The present invention relates to a combine in which a harvester at the front of the machine body is provided with a culm for transporting the cut culm to the rear.

The grain culm transport unit is provided with a transport device having an endless rotating body including, for example, an endless rotating chain that rotates along a circulation path. Of the circulation paths of the endless rotating body, the feeding path acting on the grain is located inside the machine body, and the return path is located outside the machine body. In this type of combine, conventionally, the lateral side of the grain culm transporting portion has been opened (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2015-21448

As described above, if the lateral side of the grain culm transport section is open, for example, when cutting a tall planted grain culm, the tip of the uncut grain culm is inside the machine during work. There is a risk of falling into contact with the endless rotating body passing through the return path and damaging it.

Therefore, there has been a demand for a combine that can reduce the risk of uncut grain culms and the like coming into contact with the endless rotating body.

The characteristic configuration of the combine according to the present invention is provided with a cutting section provided at the front portion of the machine body and a threshing device for threshing the cut grain culms cut by the cutting section, and the combine is planted in the cutting section. A raising device for causing a grain culm, a cutting device for cutting the root of the raised planted culm, and a culm transporting unit for transporting the harvested culm toward the threshing device are provided, and the grain is provided. The culm transport unit is provided with a transport device having an endless rotating body that rotates along a circulation path, and the circulation path of the endless rotating body includes a feeding path that acts on the culm while being located inside in the left-right direction of the machine. A point that is provided with a return path that is located on the outside in the left-right direction of the machine and is exposed to the outside, and is provided with a cover member that is located on the outside of the return path of the transfer device and extends along the return path. It is in.

According to the present invention, since the cover member is provided on the outside of the return path of the transport device, for example, the tip of the tall planted culm may fall inside the machine body during the cutting operation. However, it is possible to prevent the cover member from entering the machine body and coming into contact with the endless rotating body of the transport device.

By the way, in order to prevent the tip portion of the planted culm from coming into contact with the endless rotating body, it is conceivable to provide a large cover that covers the outer side of the culm transport portion over a wide area. However, in this configuration, there is a risk that the cover becomes large and the cost is high, and there are disadvantages such as difficulty in performing maintenance work on the grain culm transport section. However, according to the present invention, there is no such disadvantage, and it is possible to efficiently avoid contact with the endless rotating body of the culm with a simple configuration.

Therefore, with a simple structure and less risk of hindering maintenance work, the risk of the planted culm coming into contact with the endless rotating body is reduced, and good cutting work can be continuously performed.

In the present invention, it is preferable that the cover member is provided adjacent to the return path in the endless rotating body.

According to this configuration, since the cover member is provided adjacent to the endless rotating body, it is possible to reliably prevent the tip portion of the culm from entering through the gap between the cover member and the endless rotating body.

In the present invention, it is preferable that the cover member overlaps with the endless rotating body in a side view.

According to this configuration, even if the planted culm tries to fall from the lateral side toward the inside of the machine, it can be appropriately received by the cover member.

In the present invention, it is preferable that the cover member is detachably supported.

According to this configuration, when straw debris or the like is adhered and accumulated on the transport device, it is possible to easily perform the work of approaching and removing the straw dust accumulation portion in the transfer device by removing the cover member.

In the present invention, the transport device is provided with an upper support plate located on the upper side of the endless rotating body and a lower support plate located on the lower side of the endless rotating body, and the cover member is provided on the upper side. The upper plate portion located on the upper side of the support plate, the lower plate portion located on the lower side of the lower support plate, and the vertical covering acting portion located on the side of the endless rotating body are connected in a series. In this state, it is preferable that the cross-sectional shape is formed in a substantially U shape.

According to this configuration, the endless rotating body is wound around a plurality of wheel bodies, and is provided with an upper support plate and a lower support plate for supporting the plurality of wheel bodies. Therefore, by using these upper support plates and lower support plates, the upper plate portion and the lower plate portion of the substantially U-shaped cover body are supported, and the upper and lower sides are fixed, and the endless rotation is performed. The outer side of the return path of the moving body can be effectively covered. Then, by connecting the upper support plate and the lower support plate with the cover member in this way, the support strength can be improved.

In the present invention, the cover member is attached to either an upper plate portion located above the endless rotating body or a lower plate portion located below the endless rotating body, and to the side of the endless rotating body. It is preferable that the cross-sectional shape is formed in a substantially L shape in a state in which the vertically oriented covering action portion to be located is connected in a series.

According to this configuration, in a cover member having a substantially L-shaped cross section, the upper plate portion is supported on the upper side of the endless rotating body, or the lower plate portion is supported on the lower side of the endless rotating body. With the cover member fixed, the vertical covering action portion can effectively cover the outer side of the return path of the endless rotating body. With this configuration, the configuration of the cover member is simplified, and the cover member can be attached from either the upper side or the lower side of the transport device, which facilitates the attachment work.

In the present invention, the transport device is provided with a plurality of guide wheels for winding and guiding the endless rotating body, and a support member for supporting the plurality of guide wheels. Of the plurality of guide wheels, the guide wheels are supported so that the posture can be switched between a pinching action position close to the pinching rail arranged opposite to the transporting action path of the endless rotating body and a non-acting position away from the pinching rail. The lower side unit that supports the guide wheel body located on the lower side of the transport covers the working posture in which the endless rotating body is tensioned by the guide wheel body and the non-acting posture in which the endless rotating body is relaxed. It is preferable that the cover member is supported by the support member so as to be swingable around the axis of the support member, and the cover member is supported by a portion on the transport side of the support member and the connecting support shaft.

According to this configuration, when the grain culm is clogged at the confluence with other transport devices on the lower side of the transport device, the lower side unit is swung to a non-acting posture to easily move the grain culm. Can be removed. Further, when the grain culm is clogged in the middle of the transport path of the transport device, the grain culm can be easily removed by switching the entire transport device including the support member to the non-acting position. Since the cover member is supported by the transport upper side portion of the support member and the connecting support shaft, either when the lower side unit is swung to the non-acting posture or when the entire transport device is switched to the non-acting position. Even in the case of, it is not necessary to remove the cover member, and the cover member does not interfere with the culm removal work.

In the present invention, it is preferable that the cover member is provided with a groove-shaped oil reservoir at a position through which the endless rotating body passes.

According to this configuration, when the endless rotating body rotates, it passes through the oil sump portion provided in the cover member, so that smooth operation can be continuously performed.

It is an overall side view of a combine. It is a top view of the grain culm transport part. It is a side view of a cutting part. FIG. 3 is a cross-sectional plan view of the IV-IV line of FIG. FIG. 3 is a cross-sectional plan view of the VV line in FIG. It is a perspective view of the left stock origin transport mechanism. It is an exploded perspective view of the left stock origin transport mechanism. It is a vertical sectional side view of the left stock origin transport mechanism. It is a top view which shows the left stock origin transport mechanism when the lower side unit is in a non-acting posture. It is a top view which shows the left stock origin transfer mechanism when the whole left stock origin transfer mechanism is in a non-acting position. It is a cross-sectional plan view of the left tip transfer mechanism. It is a perspective view which shows the assembled state of the tip side cover. It is sectional drawing which shows the assembled state of the tip side cover. It is a cross-sectional plan view of the left tip transfer mechanism of another embodiment. FIG. 14 is a cross-sectional view taken along the line XV-XV of FIG. It is a side view of the cutting part of another embodiment. FIG. 16 is a cross-sectional view taken along the line XVII-XVII of FIG. It is a cross-sectional plan view which shows the stock base cover of another embodiment. It is a vertical sectional side view which shows the stock base cover of another embodiment. It is a perspective view which shows the stock base cover of another embodiment.

Embodiments of the present invention will be described with reference to the drawings. In the following description, the direction of the arrow "F" is the "front side of the aircraft" (see FIGS. 1 and 2), the direction of the arrow "B" is the "rear side of the aircraft" (see FIGS. 1 and 2), and the arrow " The direction of "L" is defined as "the left side of the aircraft" (see FIG. 2), and the direction of the arrow "R" is defined as "the right side of the aircraft" (see FIG. 2).

〔overall structure〕
As shown in FIGS. 1 and 2, the combine according to the present invention includes a traveling machine body 1 and a cutting section 2 capable of cutting 6 rows of planted culms. The cutting portion 2 is connected to the traveling machine body 1 so as to swing up and down around the horizontal axis P1.

The traveling machine body 1 is provided with left and right crawler traveling devices 4 as traveling devices, and is provided with a driving unit 5 on the right side (one side in the left-right direction) of the front portion of the machine body. Behind the driving unit 5, a threshing device 6 for threshing the culms cut by the cutting unit 2 and a grain tank 7 for storing the grains obtained by the threshing process are arranged in the horizontal direction of the machine body. It is equipped with. The driving unit 5 is covered with a cabin 8. Although not shown, the threshing device 6 handles and processes the tip side in the handling chamber while sandwiching and transporting the root of the harvested culm transported from the harvesting unit 2 by the threshing feed chain 9, and is used in the handling chamber. Grains and dust are sorted by the sorting section provided at the bottom. The grains are stored in the grain tank 7, and the dust is discharged to the outside of the machine. A grain discharge device 10 capable of discharging grains stored in the grain tank 7 to the outside is provided.

The cutting unit 2 is provided with a cylindrical front-rear cutting support frame 12 that also serves as a transmission case in a forward-down inclined posture, and the rear end base portion of the cutting support frame 12 stands on the front end portion of the traveling machine body 1. It is connected and supported on a support base 13 provided so as to be vertically swingable around the horizontal axis P1, and is driven and swinged vertically by a hydraulic cylinder 14.

The frame structure of the cutting unit 2 will be described.
As shown in FIGS. 1, 3 and 4, a cylindrical lateral support frame 15 also serving as a transmission case is connected to the front end of the cutting support frame 12. The left and right raising frames 16 are connected to the left and right side portions of the lateral support frame 15 in a state of extending upward, and the left and right weed frames 17 are connected in a state of extending forward. The raising frame 16 on the left side also serves as a transmission case, and a branch transmission case 18 extends from the upper and lower intermediate portions. The branch transmission case 18 is configured to transmit power to the merging and conveying device 23 on the left side, which will be described later.

In the cutting section 2, six raising devices 19 that raise the planted culms to a predetermined cutting posture, a varican-type cutting device 20 that cuts the roots of the raised culms, and a raised culms are provided. Auxiliary transport belt 21 that scrapes backward for each row, rotary packer 22 that scrapes and transports the root of the harvested culm rearward for each strip, and gradually changes the posture of the harvested culm in the standing position toward the sideways posture. A grain culm transporting unit H is provided for transporting the culm to the rear while allowing the culm to be transported backward. Side cover bodies 27 are provided on the lateral outer sides of the raising devices 19 on both the left and right sides.

As shown in FIG. 2, the grain culm transport section H includes three sets of merging and transporting devices 23, 24, 25 and merging, in which two cut culms are transported to an intermediate portion within the cutting width and merged. A supply and transport device 26 and the like for transporting the culm to the start end of the feed chain 9 provided on the lateral outer side of the threshing device 6 are provided.

The supply transport device 26 includes a tip locking transport mechanism 28 formed by extending the tip transport mechanism of the right two threads to the front of the feed chain 9, and rearward from the confluence of the three sets of merging transport devices 23, 24, 25. It is provided with a stock-holding transport mechanism 29 extended to the feed chain 9 and a lateral rotation type relay transport mechanism 30 deployed in front of the feed chain 9.

The standing culms merged by the merging and transporting devices 23, 23 and 25 are received at the start end of the supply and transporting device 26, and the culms are changed to the sideways posture while being transported upward and rearward, and the feed chain 9 It is designed to be handed over to the beginning. The holding rail 32 provided so as to face the endless rotating chain 31 in the relay transport mechanism 30 is supported by a cylindrical support rod 33 extending rearward and upward from the branch transmission case 18.

The support rod 33 is supported by the branch transmission case 18. That is, the cylindrical holding member 34 is provided while being supported by the branch transmission case 18 and extending upward. A frame-shaped member 35 made of a substantially U-shaped plate material is fixed to the holding member 34, the rear portion of the support rod 33 is connected to the frame-shaped member 35, and the support rod 33 extends rearward and upward in a cantilever shape. Has been done.

The left confluence transport device 23 located on the left side of the machine body is composed of a left stock base transport mechanism 36 for sandwiching and transporting the stock roots of the two left-row cut grain culms and a left tip transport mechanism 37 for locking and transporting the tip. .. The middle merging transport device 24 located in the central portion is composed of a middle stock source transport mechanism 38 for middle two rows and a middle tip transport mechanism 39. The right merging transfer device 25 located on the right side of the machine body is composed of a right stock transfer mechanism 40 for right two rows and a right tip transfer mechanism 41. Auxiliary transport belts 21 and rotary packers 22 are provided at the front ends of the stock transfer mechanisms 36, 38, and 40, respectively, and adjacent rotary packers 22 are meshed and interlocked with each other in units of two rows.

[Left stock transfer mechanism]
As shown in FIGS. 5 to 8, the left stock transfer mechanism 36 in the left merging transfer device 23 includes an endless rotating chain 42 as an endless rotating body that is rotationally driven along a circulation path and an endless rotating chain. A plurality of guide wheel bodies 43 for winding and guiding the 42, and a support member 44 for supporting the plurality of guide wheel bodies 43 are provided.

The circulation path of the endless rotating chain 42 includes a feed path L1 that acts on the grain while being located inside the machine body, and a return path L2 that is located outside the machine body and is exposed to the side. As the plurality of guide wheels 43, the guide sprocket 45 located on the upper side of the transport, the two lower guide rollers 46 arranged on the lower side of the transport, the drive sprocket 47 located in the front-rear intermediate portion of the return path, and the return path. An intermediate side guide roller 48 located in the middle and a spring-loaded tension roller 49 are provided.

The guide sprocket 45 on the transport side is provided so as to rotate on the same axis as the drive shaft of the rotary packer 22. The two guide rollers 46 arranged on the lower side of the transport are supported by the lower side unit 55, which will be described later. Further, the holding rail 50 is provided in a state of being arranged to face the feed path L1 of the endless rotating chain 42.

As shown in FIGS. 7 and 8, the support member 44 is connected and fixed to the plate-shaped base member 51 that supports the drive sprocket 47 and the intermediate side guide roller 48, and is substantially U-shaped in a side view. It is provided with a cylindrical support 52 extending in a straight line and a base end portion 53 having a U-shaped cross section connected to a front end portion of a lower portion of the tubular support 52. A holding member 34 is fixed to the base member 51 via a connecting tool 54.

The lower side unit 55 that supports the two guide rollers 46 located on the lower side of the transport is supported by the base end portion 53 so as to be swingable around the vertical axis Y1. The lower unit 55 includes a pair of upper and lower plate members that pivotally support the guide roller 46 from above and below, and these plate members can swing with respect to the base end portion 53 via the connecting support shaft 56 that faces up and down. It is supported. The support member 44 is supported by a linear chain rail 57 that guides the endless rotating chain 42 of the feed path L1 by sliding contact from the back portion.

An operation lever 58 made of a plate material that can swing around the fulcrum Y2 is mounted on the front-rear intermediate portion of the support member 44. An L-shaped bent receiving portion 59 is fixedly provided on the upper surface of the upper plate material of the lower unit 55. The outer peripheral edge of the operating lever 58 on the rear end side is formed on a cam 60 having a linear stabilizing cam portion 60a and a convex riding cam portion 60b, and the stabilizing cam portion 60a is a receiving portion. By linearly contacting the flat outer surface s of 59, the lower unit 55 is stably held in a state where the guide roller 46 is located at a predetermined action position.

The operating lever 58 can be fixed at the working position by the lever lock mechanism 61. The lever lock mechanism 61 is configured to screw a bolt with a knob 62 attached to the operating lever 58 into a fixing portion 44a provided on the support member 44, and the operating lever 58 is arbitrarily disengaged from the operating posture due to vibration of the machine body or the like. Is prevented.

When the lock by the lever lock mechanism 61 is released and the lower unit 55 is swung to the non-acting posture (see FIG. 9) so that the guide roller 46 is separated from the endless rotating chain 42, the endless rotating chain 42 is relaxed. Can be made to.

Therefore, the lower unit 55 is configured so that the posture can be switched between an acting posture in which the endless rotating chain 42 is tensioned by the two guide rollers 46 and a non-acting posture in which the endless rotating chain 42 is relaxed.

Further, the entire left stock transfer mechanism 36 is supported so that the posture can be switched between a pinching action position in which the feed path of the endless rotating chain 42 is close to the pinching rail 50 and a non-acting position in which the feed path is separated from the pinching rail 50. ..

The support member 44 is mounted so as to be fitted onto the branch transmission case 18 that also serves as a frame, and is supported so as to be relatively rotatable and fixed around the vertical axis Y3 with respect to the cylindrical branch transmission case 18. ing. The branch transmission case 18 is equipped with a vertically oriented drive shaft 63, and the drive shaft 63 is provided with a drive sprocket 47. That is, the support member 44 is rotatably supported by the branch transmission case 18 around the axis of the drive shaft 63. As shown in FIGS. 6 and 7, two bolt holes 64 are formed in the flange portion 18A of the branch transmission case 18, and the support member 44 is replaced with the bolt 66 for inserting the bolt hole 65 provided in the support member 44. Is configured to be switchable between a holding action position (FIG. 9) and a non-acting position (FIG. 10).

With the above configuration, for example, when the grain culm is clogged at the culm confluence on the lower side of the left stock transfer mechanism 36, the lower unit 55 is switched to the non-acting posture to cause the clogged culm. Can be removed. Further, when the grain culm is clogged in the middle of the transport path of the left stock transfer mechanism 36, the clogged culm can be removed by switching the support member 44 to the non-acting position.

[Left tip transport mechanism]
As shown in FIG. 11, the left tip transfer mechanism 37 in the left merging transfer device 23 is rotationally driven along a circulation path, and a plurality of locking claws 67 are supported so as to be undulating and swingable at appropriate intervals. An endless rotating chain 68 as an endless rotating body, a plurality of guide wheels 69 for winding and guiding the endless rotating chain 68, and a support frame 70 for supporting the plurality of guide wheels 69 and the endless rotating chain 68. Is provided. Above the left tip transfer mechanism 37, a tip guide plate 71 that receives and guides the tip side of the cut grain culm to be transported is provided (see FIG. 3).

The circulation path of the endless rotating chain 68 includes a feed path L1 that acts on the culm while being located inside the machine body, and a return path L2 that is located outside the machine body and is exposed to the side. The feed path L1 is provided in a substantially L shape in a plan view, and the return path L2 extends substantially linearly along the front-rear direction.

As the plurality of guide wheels 69, the start end side guide sprocket 72 located on the transport superior side of the feed path L1, the intermediate side guide sprocket 73 located at the position where the feed path L1 bends in the middle of transport of the feed path L1, and the feed. A terminal guide sprocket 74 located at the end of the path L1 and a drive sprocket 75 located on the lower rotation side of the return path L2 are provided.

The support frame 70 includes an upper support plate 76 located above the endless rotating chain 68 and a lower support plate 77 located below the endless rotating chain 68. The lower support plate 77 is supported by a cylindrical support 52 from the lower side at a portion on the feed path L1 side. The return path L2 side of the lower support plate 77 is supported from the lower side by the upper end portion of the holding member 34. A plate-shaped connecting stay 78 is provided at the upper end of the holding member 34, and the connecting stay 78 is bolted to the lower support plate 77.

The support shafts 72a, 73a, 74a that rotatably support the three guide sprockets 72, 73, 74 of the plurality of guide wheels 69 are supported on both the upper and lower sides by the upper support plate 76 and the lower support plate 77. It is provided in a state where it is used. The drive sprocket 75 is rotatably supported by the lower support plate 77. Further, the upper support plate 76 and the lower support plate 77 support a guide rail 79 that is provided along the feed path L1 and guides the locking claw 67 in an upright position. The upper support plate 76 is provided only at a position corresponding to the feed path L1.

[Cover member]
The combine is provided with a cover member 80 located on the outer side of the return path L2 of the endless rotating chains 42 and 68 in the left confluence transfer device 23 and extending along the return path.

As shown in FIGS. A stock source side cover 82 located on the outer side of the return path L2 of the moving chain 42 is provided.

The tip side cover 81 will be described.
As shown in FIGS. 11, 12, and 13, the tip side cover 81 is located below the upper plate portion 83 located above the upper support plate 76 in the support frame 70 and below the lower support plate 77 in the support frame 70. The lower plate portion 84 and the vertical covering acting portion 85 located on the side of the endless rotating chain 68 are connected in a series, and the cross-sectional shape is formed in a substantially U shape.

At the rear side portion of the tip side cover 81, the upper plate portion 83 and the upper support plate 76 are fixed by bolt connection, and the lower plate portion 84 and the lower support plate 77 are fixed by bolt connection. At this time, one of the connecting portions to the upper support plate 76 is connected to the connecting bolt of the support arm 86 for supporting the tip guide plate 71 in a co-tightened state. The other connection portion with respect to the upper support plate 76 and the connection portion with respect to the lower support plate 77 of the lower plate portion 84 are connected in a co-tightened state by using the support shaft 74a of the terminal guide sprocket 74.

At the front side portion of the support frame 70, the upper support plate 76 is provided only at the portion corresponding to the feed path L1 and not at the portion corresponding to the return path L2. Therefore, the upper plate portion 83 of the tip side cover 81 is extended long and is bolted to the support stay 87 extending from the upper support plate 76.

The lower plate portion 84 of the tip side cover 81 is bolted to the lower support plate 77. At this time, one of the connecting portions to the lower support plate 77 is connected to the bolt for connecting the connecting stay 78 to the lower support plate 77 in a co-tightened state. The covering action portion 85 of the tip side cover 81 is provided adjacent to the return path L2 of the endless rotating chain 68, and is provided so as to cover the lateral outer side of the return path L2.

By connecting the plurality of attachment points with bolts in this way, the tip side cover 81 can be removed by releasing the fastening of the bolts. Therefore, the tip side cover 81 is detachably supported.

Next, the stock owner side cover 82 will be described.
As shown in FIGS. A plate body having a substantially L-shaped cross section is provided with 82a and a vertical surface portion 82b extending along the outer side of the endless rotating chain 68.

The vertical surface portion 82c is formed by bending the horizontal surface portion 82a on the transport side in a substantially L shape, and the vertical surface portion 82c is in contact with the vertical surface portion 51a formed at the front end portion of the base member 51. It is applied in a state and connected with bolts. Further, the rear portion of the horizontal surface portion 82a is extended in the lateral direction to a position corresponding to the connecting support shaft 56, and is supported by the connecting support shaft 56. The horizontal surface portion 82a is supported so that the connecting support shaft 56 can be inserted and removed so that it can be inserted and removed, and the horizontal surface portion 82a can be relatively rotated. Therefore, the stock source side cover 82 can be removed by releasing the fastening of the bolts, and the stock source side cover 82 is detachably supported.

As a result, the stock source side cover 82 is supported in a state where the position does not change while allowing the lower side unit 55 to swing. Further, the stock source side cover 82 is configured to be supported in a state where the position does not change without getting in the way even when the entire left stock source transport mechanism 36 is changed in posture.

[Another Embodiment]
(1) In the above embodiment, the tip side cover 81 is formed in a substantially U-shaped cross section in a state in which the upper plate portion 83, the lower plate portion 84, and the covering action portion 85 are connected in a series. However, instead of this configuration, a configuration as described below may be used.

As shown in FIGS. 14 and 15, the tip side cover 81 has a lower plate portion 90 located on the lower side of the endless rotating chain 68 and a vertical covering acting portion 91 located on the side of the endless rotating chain 68. And, may be formed in a substantially L-shape in a cross-sectional shape in a state in which a series of In this configuration, the lower plate portion 90 is supported by being bolted to the lower side of the lower support plate 77 of the support frame 70 at appropriate positions on both front and rear portions.
When the tip side cover 81 is formed in a substantially L shape, an upper plate portion located on the upper side of the endless rotating chain 68, a vertical covering acting portion located on the side of the endless rotating chain 68, and a vertical covering acting portion. The cross-sectional shape may be formed in a substantially L-shape in a state in which the above are connected in a series.

Further, as another configuration, as shown in FIGS. 16 and 17, the tip side cover 81 is erected and supported over the upper and lower intermediate positions of the left raising frame 16 and the intermediate portion of the support rod 33 extending in a cantilever shape. It may be composed of a strip-shaped member to be formed. The tip side cover 81 is not provided in a state of being adjacent to the return path L2 of the endless rotation chain 68, but is provided in a state of overlapping with the return path L2 of the endless rotation chain 68 in a side view. There is.

(2) In the above embodiment, the stock base side cover 82 is provided with a horizontal surface portion 82a and a vertical surface portion 82b, and is composed of a plate having a substantially L-shaped cross section. The configuration may be as shown in FIGS. 18, 19, and 20.

In this configuration, the stock base side cover 82 has a cylindrical cross section so as to surround the endless rotating chain 42 in the region corresponding to the return path L2 on the left and right outer sides of the machine body of the endless rotating chain 42. It is formed. In the region corresponding to the feed path on the left and right inward sides of the machine body of the endless rotating chain 42, the periphery is open so that the endless rotating chain 42 is exposed to the outside.

The endless rotating chain 42 is designed to store lubricating oil inside in the cylindrically formed region corresponding to the return path. Therefore, in this embodiment, the stock base side cover 82 covers the return path L2 of the endless rotating chain 42, and is provided with an oil sump portion 93 at a position where the endless rotating chain 42 passes.

(3) In each of the above embodiments, as the cover member 80, the tip side cover 81 that covers the outer side of the return path L2 of the endless rotation chain 68 in the left tip transfer mechanism 37 and the endless rotation in the left stock transfer mechanism 36. Although the configuration is such that the stock base side cover 82 that covers the outer side of the return path L2 of the chain 42 is provided, only one of the tip side cover 81 and the stock base side cover 82 may be provided.

(4) In the above embodiment, the cover member 80 is detachably supported, but it may be supported in a state of being integrally connected and fixed to the support brake 4 and the support frame 70.

(5) In the above embodiment, it is applied to the combine of the 6-row cutting type, but it can be applied not only to the 6-row cutting but also to the combine having 5 or less or 7 or more cutting rows.

The present invention can be applied to a combine equipped with a grain harvester transporting device for transporting the cut grain to the rear in the cutting section at the front of the machine body.

2 Cutting part 6 Threshing device 19 Raising device 20 Cutting device 23 Transport device 42, 68 Endless rotating body 43 Guide wheel 44 Support member 50 Holding rail 55 Lower side unit 56 Connecting support shaft 76 Upper support 77 Lower support 80 Cover member 83 Upper plate part 84 Lower plate part 85 Covering action part 90 Lower plate part 91 Covering action part 93 Oil pool part H Grain rail transport part L1 Feed path L2 Return path

Claims (8)

The cutting section provided at the front of the machine and
A threshing device for threshing the cut grain culms cut by the cutting section is provided.
The harvesting unit includes a raising device that causes a planted culm, a cutting device that cuts the root of the planted culm that has been caused, and a grain culm transporting unit that transports the harvested culm toward the culm removal device. , Is provided,
The grain culm transport unit is provided with a transport device having an endless rotating body that rotates along a circulation path.
The circulation path of the endless rotating body is provided with a feed path that acts on the culm while being located inside in the left-right direction of the machine and a return path that is located outside in the left-right direction of the machine and is exposed to the outside.
A combine that is provided with a cover member that is located outside the return path of the transfer device and extends along the return path. The combine according to claim 1, wherein the cover member is provided adjacent to the endless rotating body in the return path. The combine according to claim 1 or 2, wherein the cover member overlaps the endless rotating body in a side view. The combine according to any one of claims 1 to 3, wherein the cover member is detachably supported. The transport device is provided with an upper support plate located above the endless rotating body and a lower support plate located below the endless rotating body.
The cover member has an upper plate portion located on the upper side of the upper support plate, a lower plate portion located on the lower side of the lower support plate, and a vertical covering action located on the side of the endless rotating body. The combine according to any one of claims 1 to 4, wherein the portions are connected in a series and the cross-sectional shape is formed in a substantially U shape. The cover member is either an upper support plate located on the upper side of the endless rotating body or a lower support plate located on the lower side of the endless rotating body, and a vertical orientation located on the side of the endless rotating body. The combine according to any one of claims 1 to 4, wherein the cross-sectional shape is formed in a substantially L-shape in a state in which the covering action portion of the above is connected in a series. The transport device is provided with a plurality of guide wheels for winding and guiding the endless rotating body, and a support member for supporting the plurality of guide wheels.
The transport device is supported so as to be able to switch its posture between a pinch action position close to the pinch rail arranged to face the transport action path of the endless rotating body and a non-action position away from the pinch rail.
The lower side unit that supports the guide wheel body located on the lower side of the guide wheel among the plurality of guide wheel bodies tensions the endless rotating body with the guide wheel body and relaxes the endless rotating body. It is supported by the support member so as to be swingable around the axis of the connecting support shaft over the non-acting posture.
The combine according to any one of claims 1 to 6, wherein the cover member is supported on a portion on the transport side of the support member and the connecting support shaft. The combine according to any one of claims 1 to 7, wherein the cover member is provided with a groove-shaped oil reservoir at a position where the endless rotating body passes.

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