JP7260498B2 - combine - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine harvester provided with a culm conveying section for conveying harvested culms rearward in a reaping section at the front of the machine body.

The culm conveying unit is provided with a conveying device having an endless rotating body, such as an endless rotating chain, which rotates along the circulation path. The endless rotating body rotates along the circulation path and exerts a feeding action on the culms. Conventionally, in this type of combine, the horizontal side of the grain culm conveying section is open (see, for example, Patent Document 1).

JP 2015-213448 A

As described above, if the lateral side of the grain culm conveying section is open, for example, when harvesting tall planted grain culms, the planted grain culms may fall inside the machine during work. , there is a risk of damage due to contact with an endless rotating body or the like provided in the grain culm conveying section.

Therefore, there has been a demand for a combine harvester capable of reducing the risk of the planted grain culms or the like collapsing toward the grain culm conveying section.

A characteristic configuration of a combine according to the present invention is provided with a reaping unit provided in the front part of the machine body, and a threshing device for threshing the harvested grain culms harvested by the reaping unit. A lifting device for raising grain culms, a cutting device for cutting the base of the raised planted grain culms, a grain culm conveying unit for conveying harvested grain culms toward the threshing device, An upper frame positioned above the grain culm conveying section and extending in the longitudinal direction of the machine body, and a lower frame positioned below the grain culm conveying section and extending in the longitudinal direction of the machine body in a side view of the machine body are provided. A cover member is provided between the lifting device and the threshing device in view to cover the grain culm conveying portion from the lateral outer side, and the cover member covers the grain culm over the upper frame and the lower frame. It covers the conveying section from the lateral outside and is supported by the upper frame and the lower frame .

According to the present invention, since the culm conveying section is covered from the lateral outer side by the cover member, for example, the tips of tall planted culms may fall inside the machine during harvesting. Also, since the tip portion of the planted grain culm is received by the cover member, it is possible to prevent it from entering the inside of the machine body. As a result, it is possible to prevent the planted culms from being damaged by coming into contact with the endless rotating body or the like provided in the culm conveying section.

By the way, in order to prevent the tips of planted grain culms from coming into contact with the endless rotating body, for example, it is conceivable to provide a cover that covers only the periphery of the endless rotating body provided in the grain culm conveying section. With such a configuration, when the planted culms are tall, there is a risk that the tip side will climb over the cover body and fall inside the body. On the other hand, in the present invention, since the cover member covers the grain culm conveying portion from the lateral outside, it covers not only the periphery of the endless rotating body but also a wide range, so that the planted grain culm is tall. It is possible to satisfactorily prevent the other side from falling inward.

In addition, since the cover member covers the culm conveying section over a wide range, it also has the advantage of preventing the noise of the culm conveying section or the noise of the engine provided inside the fuselage from leaking laterally outward. be.

Therefore, even if the planted grain culm is tall, it can prevent the planted grain culm from collapsing toward the grain culm conveying part, and a good reaping operation can be performed. It is possible to continue.
Further, the cover member effectively utilizes the upper frame and the lower frame provided in the culm conveying section, and even if the cover member has a wide area in the vertical direction, it can be stably and satisfactorily supported. becomes possible.

In the present invention, the culm conveying unit is provided with a conveying device having an endless rotating body that rotates along the circulation path, and the endless rotating body is positioned inward in the left-right direction of the machine body in the circulation path. and a return path positioned on the outer side in the left-right direction of the machine body and exposed laterally outward, and the cover member preferably covers the return path from the lateral outer side. be.

According to this configuration, the endless rotating body rotates along the circulation path, and performs, for example, clamping transport or locked transport in the feeding path, thereby exerting a feeding action for the culms. The return path is a path for returning to the feed path forming the circulation path, and the endless rotating body rotates in a state where it does not act on the culms. In this return path, the endless rotating body is exposed laterally outward, so if the planted culm comes into contact with it, the culm may be damaged. Therefore, by covering the return path as described above from the lateral outer side with a cover member, it is possible to prevent contact between the planting culms and the endless rotating body.

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

According to this configuration, when the transport device is clogged with straw waste or the like and accumulated thereon, the worker can approach the location where the straw is accumulated in the transport device by removing the cover member, thereby can be easily removed.

In the present invention, a dividing rod extending from the lateral side of the lifting device to the rear of the machine body through the lateral side of the grain culm conveying portion is provided, and the cover member includes the dividing rod and the grain culm conveying unit. It is preferable that it is passed between the parts.

According to this configuration, among the planted grain culms located in the uncut area, the planted grain culms located near the machine body may tend to lean toward the machine body side during the harvesting operation. Therefore, by providing the dividing rod, it is possible to guide the planted culms to be leaned on so as to move outward in the left-right direction of the machine body. Since the weeding rod is composed of a rod-like member elongated in the front-rear direction, it is not possible to hold down the tip-side portion extending upward from the location guided by the weeding rod. If the planted grain culm is a long culm, the tip portion extending upward from the portion guided by the dividing rod becomes longer, and this portion may collapse inward in the left-right direction of the machine body. However, since the cover member is provided on the inner side in the left-right direction of the body from the dividing rod, it is possible to receive the tip side portion extending upward and effectively prevent the tip-side portion from falling inward in the left-right direction of the body.

In the present invention, a side cover is provided to cover the lateral outer side of the pulling device, a crawler traveling device is provided below the threshing device, and the cover member comprises the side cover and the front end of the crawler traveling device. preferably extends in a plane across the .

According to this configuration, the cover member extends planarly over a wide range in the front-rear direction from the rear portion of the lateral outer side cover of the lifting device to the front end of the crawler traveling device. As a result, it is possible to cover substantially the entire region opened laterally outside the culm conveying section. As a result, it is possible to reliably prevent the tip portion of the planted culm from entering the inner side in the left-right direction of the machine body by the wide planar cover member.

In the present invention, it is preferable that the cover member is positioned on the inner side in the left-right direction of the aircraft body with respect to the rear end portion of the side cover.

According to this configuration, it is possible to satisfactorily prevent the planted culms received and guided by the side cover from entering inward in the left-right direction of the machine body through the gap between the side cover and the cover member. .

It is the whole combine side view. It is a top view of a grain culm conveying part. It is a side view of a grain culm conveying part. It is a top view of a cover member arrangement|positioning part.

An embodiment of the present invention will be described based on the drawings. In the following description, the direction of the arrow "F" is the "front side of the aircraft" (see FIGS. 1 and 3), the direction of the arrow "B" is the "back side of the aircraft" (see FIGS. 1 and 3), and the direction of the arrow " The direction of the arrow "R" is defined as the "right side of the aircraft" (see FIGS. 2 and 4).

〔overall structure〕
As shown in FIG. 1, the combine according to the present invention includes a traveling body 1 and a reaping section 2 capable of reaping six planted grain culms. The reaping unit 2 is connected to the traveling machine body 1 so as to be able to swing up and down around a horizontal axis P1.

The traveling machine body 1 is provided with left and right crawler traveling devices 4 as traveling devices, and a driving unit 5 on the right side (one side in the left-right direction) of the front part of the machine body. A state in which a threshing device 6 for threshing the culms harvested by the harvesting unit 2 and a grain tank 7 for storing grains obtained by the threshing processing are arranged in the lateral direction of the machine behind the operation unit 5. is provided with The operating part 5 is covered with a cabin 8 . Although not shown, the threshing device 6 thresh the tip side of the harvested grain culm transported from the harvesting unit 2 while nipping and transporting it with the threshing feed chain 9, and threshing the tip side of the threshing chamber. Grains and dust are sorted in the sorting unit provided at the bottom. Grains are stored in a grain tank 7, and dust is discharged outside the machine. A grain discharging device 10 capable of discharging grains stored in the grain tank 7 to the outside is provided.

As shown in FIGS. 3 and 4, the reaping unit 2 is provided with a front-rear cylindrical reaping support frame 12 that also serves as a transmission case and is inclined forward downward. , is connected to and supported by the traveling machine body 1 so as to be vertically swingable about a horizontal axis P1, and is driven and vertically swung by a hydraulic cylinder (not shown).

A cylindrical lateral support frame 15 that also serves as a transmission case is connected to the front end of the reaping support frame 12 . Left and right raising frames 16 are connected to the left and right side portions of the horizontal support frame 15 in an upwardly extending state, and left and right dividing grass frames 17 are connected in a forwardly extending state. The left lifting frame 16 also serves as a transmission case, and a branch transmission case 18 extends from the upper and lower middle portions. The branch transmission case 18 is configured to transmit power to a left merging conveying device 23, which will be described later. A connecting portion 17a at the rear end of the leftmost divided grass frame 17 is connected to the left end portion of the horizontal support frame 15 by a plurality of bolts Bo. The leftmost weed frame 17 corresponds to the lower frame positioned below the culm conveying section H in a side view of the machine body.

As shown in FIGS. 2 and 3, the reaping unit 2 includes six raising devices 19 for raising the planted grain culm to a predetermined reaping posture, and a clipper-type cutting device for cutting the root of the raised planted grain culm. A device 20, an auxiliary conveying belt 21 that rakes the lifted grain culms backward, a rotating packer 22 that rakes and conveys the base of the harvested grain culms backward, and gradually turns the harvested grain culms in an upright posture to a sideways posture. A culm conveying section H is provided for conveying rearward while changing. Side covers 27 are provided laterally outside the lifting devices 19 on both the left and right sides.

On the left side of the reaping unit 2, a dividing rod 51 is provided that extends from the lateral side of the raising device 19 at the left end through the lateral side of the culm conveying portion H to the rear of the machine body. The branch rod 51 is formed of a rod-shaped member and provided in a state of being elongated in the front-rear direction. The branching rod 51 is supported so as to be able to switch between a retracted posture in which it is retracted toward the inside of the machine body and an operating posture in which it projects laterally outward and guides planted culms while gathering them outward. The branch rod 51 is supported on the left end of the lateral support frame 15 via a support bracket 52 so as to be able to swing about the front-rear axis X1. can be switched to

The grain culm conveying unit H includes three sets of merging conveying devices 23, 24, and 25 that convey harvested grain culms two by two to an intermediate portion within the cutting width and merge, and a threshing device 6 that transports the merged grain culms. A feeding and conveying device 26 for conveying to the starting end of the feed chain 9 provided on the lateral outside of the feed chain 9, and the like are provided.

An upper support rod 54 extends forward from the right side of a horizontal transmission case 53 provided at the rear end base of the reaping support frame 12 , bypassing the upper part of the reaping part 2 . is connected to the upper lateral frame 55 of the . A lateral support rod 56 extends leftward from the middle part of the upper support rod 54 in the front-rear direction so as to detour above the conveying path of harvested grain culms. The lateral support rod 56 supports the rear end of an upper cover 57 extending rearward from the upper portion of the lifting device 19 at its left-right middle portion. The lateral support rod 56 is connected to the transport support rod 33 at its left end.

A band plate-like connecting member 58 is provided that extends in the front-rear direction to connect the left end portion of the lateral support rod 56 and the upper and lower middle portions of the left raising frame 16 . The connecting member 58 is positioned above the culm conveying section H in a side view. Therefore, the connecting member 58 corresponds to an upper frame positioned above the culm conveying section H and extending in the longitudinal direction of the machine body.

The feeding and conveying device 26 includes a tip locking and conveying mechanism 28 configured by extending two right tip conveying mechanisms 41 to the front of the feed chain 9, and three sets of merging conveying devices 23, 24 and 25. It is provided with a rearwardly extending stock holding and conveying mechanism 29 and a laterally rotating relay conveying mechanism 30 arranged in front of the feed chain 9. - 特許庁

The standing culms joined by the merging conveying devices 23, 23, and 25 are received by the starting end of the feeding and conveying device 26, and while being conveyed rearward and upward, the culms are changed to a sideways posture, and the feed chain 9 is fed. It is designed to be delivered to the starting end. A clamping rail 32 provided to face the endless rotating chain 31 in the relay transport mechanism 30 is supported by a cylindrical transport support rod 33 extending rearward and upward from the branch transmission case 18 .

The carrying support rod 33 is supported by the branch transmission case 18 . That is, a cylindrical holding member 34 is provided in a state of being supported by the branch transmission case 18 and extending upward. A frame-like member 35 made of a plate material formed in a substantially U-shape is fixed to the holding member 34, and the rear portion of the support rod 33 is connected to the frame-like member 35 so that the support rod 33 cantilevers rearward. extended upwards.

The left merging and conveying device 23 located on the left side of the machine body is composed of a left stem base conveying mechanism 36 for pinching and conveying the base of the left two rows of harvested grain culms and a left tip conveying mechanism 37 for locking and conveying the tips. . The middle confluence conveying device 24 located in the central portion is composed of a middle bristle base conveying mechanism 38 and a middle tip conveying mechanism 39 for middle 2 strands. The right joining conveying device 25 located on the right side of the machine body is composed of a right stem conveying mechanism 40 and a right ear tip conveying mechanism 41 for the right two strands. An auxiliary conveying belt 21 and a rotating packer 22 are provided at the front end of each of the stock base conveying mechanisms 36, 38, 40, and the adjacent rotating packers 22 are meshed and interlocked in units of two.

[Left stock source transport mechanism]
The left stock base conveying mechanism 36 in the left merging conveying device 23 includes an endless rotating chain 42 as an endless rotating body rotated along the circulation path, and a plurality of guide wheels for winding and guiding the endless rotating chain 42. A body 43 and a support member 44 supporting a plurality of guide wheels 43 are provided.

The circulation path of the endless rotating chain 42 includes a feeding path L1 that acts on the culms inside the machine body and a return path L2 that is positioned outside the machine body and exposed to the side. The guide wheel 43 on the upper transport side is provided so as to rotate coaxially with the drive shaft of the rotary packer 22 . Also, a clamping rail 50 is provided so as to face the feed path L1 of the endless rotating chain 42 .

[Left tip transport mechanism]
The left tip conveying mechanism 37 in the left merging conveying device 23 is driven to rotate along the circulation path, and is an endless rotating body in which a plurality of locking claws 67 are supported at appropriate intervals so as to be able to undulate and swing. An endless rotating chain 68, 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, the endless rotating chain 68 and the like from both upper and lower sides. It is A tip guide plate 71 is provided above the left tip conveying mechanism 37 for receiving and slidingly guiding the tip side of the harvested grain culms to be conveyed.

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

[Cover member]
The left stem base conveying mechanism 36 and the left ear tip conveying mechanism 37 as described above are provided in a state in which the respective return paths L2 face outward on the left side of the culm conveying section H. As shown in FIG. Therefore, in this combine harvester, a cover member 80 is provided to cover the lateral sides of the respective return paths of the left stock base conveying mechanism 36 and the left tip conveying mechanism 37 in a side view of the machine body.

As shown in FIGS. 1 and 3, the cover member 80 is provided between the raising device 19 and the threshing device 6 in a side view of the machine body so as to cover the culm conveying section H from the lateral outside. In a side view, the cover member 80 extends vertically over the connecting member 58 and the left end dividing frame 17, and extends in the front-rear direction over the left side cover 27 and the front end of the crawler traveling device 4. , are formed in a planar shape. That is, the cover member 80 is formed in a planar shape that extends wide in both the vertical direction and the front-rear direction, and widely covers the grain culm conveying section H from the lateral outer side. Such a wide cover member 80 covers the return route L2 of the left stem base conveying mechanism 36 and the left tip conveying mechanism 37 from the lateral outside.

As shown in FIG. 4, the cover member 80 is passed between the dividing rod 51 and the grain culm conveying section H. As shown in FIG. In addition, the cover member 80 is located on the inner side in the left-right direction of the fuselage with respect to the rear end portion of the left side cover 27 . With this configuration, the cover member 80 can move the planted culm conveying portion H of planted culms without interfering with the attitude change between the retracted attitude and the working attitude of the dividing rod 51 . Prevents tipping over to the side.

The cover member 80 is composed of a soft hump member made of fiber material, resin material, or the like. An upper end portion of the cover member 80 is fixed to the connecting member 58 by fastening bolts at a plurality of locations spaced apart in the front-rear direction. The lower end portion of the cover member 80 is fixed by fastening a bolt in a state of being tightened together with the connection portion 17a at the rear end of the leftmost dividing frame 17 . Since the branch rod 51 is located on the outer side in the left-right direction of the machine body than the cover member 80, the branch rod 51 is sandwiched between the cover member 80 and the left end portion of the lateral support frame 15. The support bracket 52 is fixed and supported by tightening bolts in a jointly tightened state. Therefore, the cover member 80 can be easily removed by releasing the fastening of the bolts at the connection points on both the upper and lower sides.

[Another embodiment]
(1) In the above-described embodiment, the cover member 80 is positioned inward of the rear end portion of the side cover 27 in the left-right direction of the fuselage. A configuration in which the rear end portion and the rear end portion are substantially flush with each other, or the cover member 80 is provided in a state in which the cover member 80 is smoothly connected to the rear end portion of the side cover 27 , and the rear portion of the cover member 80 is located on the side cover 27 . It is good also as a structure provided in the state located in the left-right direction outer side of a body rather than a rear-end part.

(2) In the above embodiment, the cover member 80 is passed between the dividing rod 51 and the grain culm conveying section H, and the support bracket 52 of the dividing rod 51 is applied from the outer side of the cover member 80, Although the structure is such that the support brackets 52 are connected in a mutually tightened state, instead of this structure, the support brackets 52 may be supported by the lateral support frame 15 inside the cover member 80 . In that case, the support bracket 52 may be configured to pass through an insertion hole formed in the cover member 80 .

(3) In the above-described embodiment, the dividing rod 51 is provided, but instead of this structure, the dividing rod 51 is not provided, and the planted grain culm is prevented from falling down by the cover member 80. may

(4) In each of the above-described embodiments, the cover member 80 extends vertically across the connecting member 58 and the left end dividing frame 17 in a side view, and extends between the left side cover 27 and the front end of the crawler traveling device 4 . Although it is configured to extend in the front-rear direction over the entire length, the following configuration may be used instead of this configuration.

The cover member 80 may have a region extending vertically over the connecting member 58 and the leftmost split grass frame 17 and having a narrow width in the front-rear direction in a side view. Further, the cover member 80 may extend in the front-rear direction over the left side cover 27 and the front end of the crawler traveling device 4 in a side view and have a vertically narrow region.

(5) In the above embodiment, the cover member 80 is configured to be detachably supported, but may be configured to be supported in a state of being integrally connected and fixed to the frame on the reaping section side.

(6) In the above embodiment, the present invention is applied to a 6-row combine harvester.

INDUSTRIAL APPLICABILITY The present invention can be applied to a combine harvester provided with a culm conveying section for conveying cut culms rearward in a reaping section in the front part of the machine body.

2 reaping unit 6 threshing device 17 dividing frame (lower frame)
19 Lifting device 20 Cutting device 23 Conveying device 27 Side cover 42, 68 Endless rotating body 51 Branching rod 58 Connecting member (upper frame)
80 Cover member H Grain culm conveying part L1 Sending path L2 Returning path

Claims (6)

A reaping part provided in the front part of the fuselage,
a threshing device for threshing the harvested grain culms harvested by the harvesting unit,
In the harvesting unit, a raising device for raising planted grain culms, a cutting device for cutting the root of the raised planted grain culms, and a grain culm conveying unit for conveying the harvested grain culms toward the threshing device. an upper frame positioned above the culm conveying section and extending in the longitudinal direction of the machine body when viewed from the side of the machine body; and a lower frame positioned below the culm conveying section and extending in the longitudinal direction of the machine body when viewed from the side of the machine body. , is provided,
A cover member is provided between the lifting device and the threshing device in a side view of the machine body for covering the culm conveying portion from the lateral outer side,
The cover member covers the grain stalk conveying section from the lateral outer side across the upper frame and the lower frame, and is supported by the upper frame and the lower frame. The grain culm conveying unit is provided with a conveying device having an endless rotating body that rotates along the circulation path,
In the circulation path of the endless rotating body, there are a feeding path that acts on the culm while being positioned on the inner side in the left-right direction of the machine body, and a return path that is positioned on the outer side in the left-right direction of the machine body and exposed laterally outward. prepared,
The combine according to claim 1, wherein the cover member covers the return path from the lateral outside. The combine according to claim 1 or 2, wherein the cover member is detachably supported. A dividing rod extending from the lateral side of the lifting device to the rear of the machine body through the lateral side of the grain culm conveying section,
The combine according to any one of claims 1 to 3 , wherein the cover member is passed between the dividing rod and the grain culm conveying section. A side cover covering the lateral outer side of the lifting device is provided,
A crawler traveling device is provided below the threshing device,
The combine according to any one of claims 1 to 4 , wherein the cover member extends in a plane across the side cover and the front end of the crawler travel device. The combine according to claim 5 , wherein the cover member is located on the inner side in the left-right direction of the machine body from the rear end portion of the side cover.

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