JP2021185783A - combine - Google Patents

Abstract

To provide a combine capable of smoothly delivering transported grain culm even when a large amount of moisture is included in a root of grain culm.SOLUTION: A combine comprises: a feed chain 15 holding a root of grain culm transported by a grain culm transport device for transporting the grain culm rearward; a thresher 4 for threshing an ear tip of the grain culm; a first auxiliary transport unit 32 being provided inside of a machine body relative to the feed chain 15, for transporting the root of the grain culm transported; and a second auxiliary transport unit 48 for transporting a part on outside of a machine body relative to a part transported by the first auxiliary transport unit 32 on the root of the grain culm to be transported, toward a transport start end of the feed chain 15.SELECTED DRAWING: Figure 3

Description

The present invention is a feed chain that sandwiches a grain culm transport device that transports the culm cut by the cutting section to the rear and a stock culm of the culm transported by the grain culm transport device, and transports the grain culm to the rear. The present invention relates to a combine provided with a grain removing device for handling and processing the tip of a grain culm while being sandwiched and transported by the feed chain.

The grain culm transport device is provided with a stock root holding and transporting unit that sandwiches and transports the stock root of the harvested culm, and a tip locking transport unit that locks and transports the tip of the culm. Transport backward while guiding to change to posture. The tip locking transport unit is configured to lock and transport the tip to the vicinity of the grain culm supply port of the threshing device. Then, between the stock holding and transporting unit and the feed chain, an auxiliary transport device composed of an endless rotating chain is provided at a position slightly closer to the inside of the machine (tip side) than the feed chain. In addition, a rod-shaped guide member may be provided between the stock holding and transporting unit and the feed chain to guide the stock while supporting the stock from below while extending rearward from the transport end of the stock holding and transporting unit. (See, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2006-121938

In the above-mentioned conventional configuration, the culm can be transported satisfactorily if the culm is in a dry and normal state, but for example, when the stock of the culm contains a large amount of water, the feed chain There was a risk that the culm would stay at the delivery point and could not be transported properly.

To add an explanation, there is no problem when the culm is dry, but when the culm has a large amount of water, the culm becomes heavy. When the stock root is wet and heavy in this way, the stock root hangs down and comes into contact with the member located below the grain culm, increasing the sliding resistance and increasing the resistance to the transfer of the stock root. The transportation seems to be delayed. Since the tip is forcibly locked and transported to the vicinity of the grain culm supply port of the threshing device, the tip may be transferred in a state where the tip is too advanced, and the transport posture may be disturbed. Then, the grain culms will stay due to the disorder of the transport posture, and the subsequent cut grain culms will be deposited, and the transport will not be performed well.

Therefore, there has been a demand for smooth delivery of the transported culm even when the stock of the culm contains a large amount of water.

The characteristic configuration of the combine according to the present invention is that the grain culm is sandwiched between a grain culm transport device that transports the culm cut by the cutting section to the rear and a stock culm of the culm transported by the grain culm transport device. The feed chain to be transported to the rear, the grain removal device for handling and processing the tips of the grain culms while being sandwiched and transported by the feed chain, and the stock origin of the grain culms to be transported located inside the machine body from the feed chain are described above. Between the first auxiliary transport device that transports toward the transport start end of the feed chain, the grain culm transport device, and the feed chain, the feed chain is located outside the machine body and is located outside the first auxiliary transport device. A second portion of the stock culm to be transported in a state of being located in the front, which is outside the machine body from the portion transported by the first auxiliary transport device, is transported toward the transport start end of the feed chain. It is equipped with an auxiliary transfer device.

According to the present invention, the grain culm transported by the grain culm transport device is fed by the first auxiliary transport device and is transported toward the feed chain. At this time, the portion outside the machine body is conveyed toward the feed chain by the second auxiliary transfer device, rather than the portion conveyed by the first auxiliary transfer device. As a result, even if there is a risk that the stock root contains a large amount of water and the sliding resistance increases, the stock root is forcibly transported by the second auxiliary transport device, so that the stock root of the grain culm stays. There is no culm, and it is well transported toward the beginning of the feed chain.

Therefore, even when the stock of the grain culm contains a large amount of water, it is possible to smoothly deliver the transported grain culm.

In the present invention, a guide member is provided for supporting the stock of the grain culm transported by the supply transport device from below in a state of being located outside the machine body of the first auxiliary transport device, and the second auxiliary transport device is provided. It is preferable that the device is located outside the machine body with respect to the guide member.

According to this configuration, even when the stock root is heavy due to a large amount of water, the stock root portion is supported from below by the guide member, so that the stock root is prevented from hanging downward. , Can be transported backwards. Even if a sliding resistance acts when supporting by such a guide member, the transporting force of the second auxiliary transporting device acts to enable smooth transport without staying.

In the present invention, it is preferable that the second auxiliary transport device is a rotating body having a locking portion for transfer on the outer peripheral portion.

According to this configuration, the second auxiliary transport device is composed of a rotating body, and has a simpler configuration than a configuration such as an endless rotating chain spanning a plurality of wheels, but on the outer peripheral portion. The provided locking portion can lock the stock of the grain culm and reliably exert the feeding action.

In the present invention, it is preferable that the working surface of the locking portion that engages with the grain culm is inclined so as to be located on the upper side in the rotational direction toward the outer side in the radial direction.

According to this configuration, the locking portion of the second auxiliary transport device releases the locking action on the grain culm from the rotary transfer region where the locking portion of the second auxiliary transport device is locked to the stock base portion of the grain culm and exerts a feeding action, and the grain culm is released. When it is rotated to the release area where the culm is fed backward, the working surface of the locking portion is easily disengaged from the locked culm.

In the present invention, the first auxiliary transport device includes a plurality of guide wheels and an endless rotating body spanned over the plurality of guide wheels, and is the most front side of the guide wheels among the plurality of guide wheels. It is preferable that the rotating shaft of the front side guide wheel body located at the position is extended and projected toward the outside of the machine body, and the second auxiliary transport device is attached to the protruding portion of the rotating shaft.

According to this configuration, by utilizing the rotational power of the guide wheel body of the first auxiliary transfer device, the state synchronized with the first auxiliary transfer device is not caused by the complicated structure such as the provision of a dedicated transmission mechanism. Then, the second auxiliary transfer device can be rotationally driven.

It is an overall side view of a combine. It is a top view of the grain culm transport device. It is a top view of the place where the grain culm is delivered to the feed chain. It is a side view of the place where the grain culm is delivered to the feed chain. It is a side view of the 2nd auxiliary transfer apparatus arrangement part. It is a top view of the 2nd auxiliary transfer apparatus arrangement part.

An embodiment 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", the direction of the arrow "B" is the "rear side of the aircraft" (see FIGS. 1, 4 and 5), and the direction of the arrow "L" is ". The direction of "left side of the aircraft" and the arrow "R" is "right side of the aircraft" (see FIGS. 2, 3 and 6).

As shown in FIG. 1, in the combine, the cutting and transporting unit 3 is connected to the front portion of the traveling machine body 2 provided with the left and right crawler traveling devices 1 so as to be swingable around the horizontal axis P, and the rear portion of the traveling machine body 2. A threshing device 4 and a grain tank 5 for storing grains are provided in a state of being lined up in the horizontal direction of the machine. A boarding operation unit 7 covered with a cabin 6 is provided on the right side of the front portion of the traveling aircraft 2.

The cutting transport section 3 is supported by the machine body so as to be swingable around the horizontal axis P via a cylindrical cutting section frame 8 that also serves as a transmission case. The cutting section frame 8 is provided in a forward-down inclined posture, and the rear end base portion of the cutting section frame 8 is moved up and down with the horizontal axis P as the center on the support base 9 erected at the front end portion of the traveling machine body 2. It is swingably connected and supported. A support frame portion 10 of the cutting transport portion 3 is connected to the front end portion of the cutting portion frame 8. The cutting transport unit 3 is integrally swung up and down by the hydraulic cylinder 11 together with the cutting unit frame 8.

As shown in FIGS. 1 and 2, the cutting and transporting unit 3 is a variable can type as a cutting unit for cutting a plurality of raising devices 12 that cause a fallen planted culm and a stock root of the raised planted culm. The grain culm transport device 14 that transports the cut grain culm in the vertical position whose root is cut by the cutting blade 13 to the grain removal device 4 located on the rear side of the machine while gradually changing the posture to the sideways position. Etc. are provided.

As shown in FIG. 1, a feed chain 15 for sandwiching and transporting the stock root of the grain culm is provided behind the grain culm transport device 14, and the threshing device 4 is transported by sandwiching the stock root by the feed chain 15. The tip side of the grain culm is threshed in the internal handling room. In the handling room, although not shown, the tip of the grain culm is handled and processed by the handling cylinder and the receiving net. Then, a grain sorting process for the threshed product is executed in the sorting section provided in the lower part of the handling room, and the obtained grains are stored in the grain tank 5. Although not described in detail, a grain discharge device 16 for discharging grains stored in the grain tank 5 to the outside is provided.

As shown in FIG. 3, the grain culm transport device 14 has an auxiliary transport belt 17 that lightly scrapes the raised culm rearward for each row, and scrapes the stock of the cut culm rearward for each row. Rotating packer 18 for crowded transport, 3 sets of merged transport devices 19, 20, 21 for transporting and merging two cut grain culms to the intermediate part within the cutting width, and a grain removal device for the merged grain culms. A supply transport device 22 or the like for transporting to the start end portion of the feed chain 15 provided on the lateral side of the 4 is provided.

As shown in FIG. 2, the merging transport device 19 on the left side of the machine body is composed of a stock root transport mechanism 19a for sandwiching and transporting the stock roots of the two cut grain culms on the left and a tip transport mechanism 19b for locking and transporting the tip. Ru. The merging transfer device 20 in the central portion is composed of a stock source transfer mechanism 20a for the middle two rows and a tip transfer mechanism 20b. The merging transfer device 21 on the right side of the machine is composed of a stock transfer mechanism 21a for the right two rows and a tip transfer mechanism 21b. Auxiliary transport belts 17 and rotary packers 18 are provided at the front ends of the stock transfer mechanisms 19a, 20a, and 21a, respectively, and adjacent rotary packers 18 are meshed and interlocked with each other in units of two rows.

The supply transport device 22 includes a tip locking transport mechanism 23 in which the tip transport mechanism 21b on the right two threads is extended to the front of the feed chain 15, and a grain culm merging point by three sets of merging transport devices 19, 20, 21. It is composed of a stock-holding transport mechanism 24 extending rearward from the feed chain 15 and a lateral rotation type relay transport device 25 deployed in front of the feed chain 15. The vertical culms merged by the merging and transporting devices 19, 20 and 21 are received by the start end of the supply and transport device 22, and the culms are changed to the sideways posture while being transported upward to the rear, and the start end of the feed chain 15. It is designed to be handed over to the department.

As shown in FIG. 3, the relay transport device 25 includes a transport chain 25a wound in an inclined posture and a pinch rail 25b for sandwiching the transport grain culm. The transport chain 25a is wound around a plurality of ring bodies 25c rotatably supported by a support plate (not shown), and is rotated by power from the tip locking transport mechanism 23. A holding rail 23b is provided at a position guided by the support plate of the transport chain 25a in an arc shape. The holding rail 23b is supported in a state where a spring (not shown) housed inside the holding frame 26 is pressed toward the transport chain 25a. The holding frame 26 is supported by the rear end portion of the support rod 27 extending rearward and upward from the front end portion of the cutting portion frame 8.

A rod-shaped guide member 28 that is fixed to the back surface side of the support plate (not shown) of the relay transfer device 25 and extends diagonally backward and outward and extends in a cantilever shape is attached. The guide member 28 receives the portion of the stock of the grain culm on the end side of the stock from the portion sandwiched by the relay transport device 25 from the lower side and slides and guides the portion toward the feed chain 15.

As shown in FIGS. 1 and 4, the holding rail 29 is provided so as to face the upper side of the feed chain 15, and the feeding chain 15 and the holding rail 29 hold the root of the grain culm and convey it to the rear. It is configured.

As shown in FIGS. 2, 3 and 4, the front end portion of the feed chain 15 is provided with a pressing member 30 for pressing and guiding the transported grain culm from above. The pressing member 30 is pressed and urged toward the feed chain 15 by the spring 31.

In front of the entrance of the threshing device 4, the first auxiliary transport device 32 that transports the stock of the grain culm toward the transport start end of the feed chain 15 while being located slightly inside the machine body (tip side) from the feed chain 15. Is provided. The first auxiliary transport device 32 includes a transport chain 33 with a protrusion that is vertically rotated and wound, and a pressing member 34 that is arranged facing above the transport chain 33 and that presses and guides the transported grain culm from above. ing. The pressing member 34 is pressed and urged toward the transport chain 33 by a spring (not shown).

As shown in FIGS. 5 and 6, the transport chain 33 is located below the front and rear guide wheels 35 and 36 located on the upper side, the drive wheels 37 located below them, and the drive wheels 37. It is wound around the tension wheel 38. Each wheel body 36 to 38 is supported by a pipe frame 39 extending upward from the support base 9. The upper part of the pipe frame 39 is bent in a substantially L shape in the front-rear direction so as to extend in the lateral direction, and the support member 40 is connected to the tip of the lateral portion. A shaft support portion 41 having a substantially U-shape in a plan view is provided on both front and rear sides of the support member 40, and the rotation shafts 35a and 36a of the front and rear guide wheels 35 and 36 are rotatably supported by the front and rear shaft support portions 41. ing. The pivot boss portion 42 is connected to the upper and lower intermediate portions of the pipe frame 39, and the rotation shaft 37a mounted in a state where the drive wheel body 37 is integrally rotatable is rotatably interpolated and supported by the pivot support boss portion 42. ing.

A drive chain 43 for transmitting power to the transfer chain 33 is provided inside the machine body of the transfer chain 33. The drive chain 43 is wound around a drive wheel body 44 and a driven wheel body 45 provided at positions corresponding to the swing fulcrum portion of the cutting and transporting unit 3. The driven wheel body 45 is mounted in a state of being integrally rotated with a rotating shaft 37a rotatably inserted and supported by the pivot boss portion 42. The power from the engine is transmitted to the drive wheel body 44, and is transmitted to the transfer chain 33 via the drive chain 43, the rotary shaft 37a, and the drive wheel body 37.

A swing arm 46 is supported on the outer peripheral portion of the rotary shaft 37a so as to be swingable around the axis. A tension wheel 38 is rotatably supported on one swinging end of the swinging arm 46, and a tension spring 47 is provided on the other swinging end of the swinging arm 46. The tension wheel body 38 is moved and urged in a direction in which a tension force is applied to the transport chain 33 via the swing arm 46 by the urging force of the tension spring 47.

The guide member 28 is provided in a state where the guide member 28 extends rearward at a portion closer to the outside of the machine body than the first auxiliary transport device 32. The stock root of the grain culm is slidably guided by a guide member 28 extending rearward from the relay transport device 25 in a cantilever shape.

As shown in FIG. 3, between the grain culm transport device 14 and the feed chain 15, the grains to be transported are located outside the machine body and in front of the feed chain 15 with respect to the first auxiliary transport device 32. A second auxiliary transport device 48 for transporting a portion of the culm stock that is outside the machine body to the transport start end portion of the feed chain 15 is provided.

The second auxiliary transport device 48 is located outside the machine body from the guide member 28, and is composed of a rotating body having a locking portion 49 for transfer on the outer peripheral portion. That is, as shown in FIGS. It is composed of shaped members.

As shown in FIG. 6, of the front and rear guide wheel bodies 35 and 36 that support the transport chain 33, the rotation shaft 35a of the front side guide wheel body 35 located on the front side of the machine body extends toward the outside of the machine body. It is protruding. The second auxiliary transfer device 48 is attached to the protruding portion 35b of the rotating shaft 35a in a state of being integrally rotated. When the transport chain 33 of the first auxiliary transport device 32 rotates, the guide wheel 35 on the front side rotates together with the rotation shaft 35a, and the second auxiliary transport device 48 rotates in synchronization with the rotation. .. As a result, the second auxiliary transport device 48 locks and transports the stock of the grain culm toward the feed chain 15.

As shown in FIG. 5, the action surface 49a that engages with the grain culm in the locking portion 49, that is, the end surface located on the lower side in the rotation direction is inclined so as to be located on the upper side in the rotation direction toward the outer side in the radial direction. ing. That is, the locking portion 49 has a receding angle that recedes in the direction opposite to the rotation direction, and when the locking portion 49 is locked with respect to the stock root of the culm and sent out to the lower side in the transport direction, the locking portion 49 is the grain. It becomes easy to come off from the culm, and the grain culm can be smoothly transported.

[Another Embodiment]
(1) In the above embodiment, the second auxiliary transport device 48 is located outside the machine body with respect to the guide member 28, but instead of this configuration, the second auxiliary transport device 48 is inside the machine body with respect to the guide member 28. It may be configured to be located in. Further, the guide member 28 may not be provided.

(2) In the above embodiment, the second auxiliary transport device 48 is composed of a rotating body having a locking portion 49 for transfer on the outer peripheral portion, but instead of this configuration, a plurality of wheel bodies are shown. It may be configured to include an endless rotating chain with protrusions that are wound over.

(3) In the above embodiment, the second auxiliary transfer device 48 is rotationally driven by using the rotary shaft 35a of the guide wheel body 35 of the first auxiliary transfer device 32, but instead of such a configuration. For example, the power may be transmitted from the feed chain 15.

The present invention can be applied to a head-feeding combine.

4 Threshing device 13 Cutting part 14 Grain culm transport device 15 Feed chain 28 Guide member 32 First auxiliary transport device 33 Endless rotating body 35, 36 Guide wheel body 35a Rotating shaft 35b Protruding part 48 Second auxiliary transport device 49 Locking part 49a Action surface

Claims (5)

A grain culm transport device that transports the culm cut by the reaping section to the rear,
A feed chain that holds the stock of the culm transported by the culm transport device and transports the culm backward.
A threshing device that handles and processes the tips of grain culms while sandwiching and transporting them with the feed chain.
A first auxiliary transport device located inside the machine body of the feed chain and transporting the stock of the culm to be transported toward the transport start end of the feed chain.
Of the stock culms to be transported between the grain culm transport device and the feed chain in a state of being located outside the machine body and in front of the feed chain from the first auxiliary transport device. A combine including a second auxiliary transport device for transporting a portion outside the machine body to a transport start end portion of the feed chain, rather than a portion transported by the first auxiliary transport device. A guide member is provided to support the stock root of the grain culm transported by the grain culm transport device from below in a state of being located outside the machine body from the first auxiliary transport device.
The combine according to claim 1, wherein the second auxiliary transport device is located outside the machine body of the guide member. The combine according to claim 1 or 2, wherein the second auxiliary transport device is a rotating body having a locking portion for transfer on the outer peripheral portion.
combine. The combine according to claim 3, wherein the action surface that engages with the grain culm in the locking portion is inclined so as to be located on the upper side in the rotational direction toward the outer side in the radial direction. The first auxiliary transport device includes a plurality of guide wheels and an endless rotating body spanned over the plurality of guide wheels.
The rotation axis of the front side guide wheel body located on the front side of the machine body among the plurality of guide wheel bodies is extended and projected toward the outside of the machine body.
The combine according to any one of claims 1 to 4, wherein the second auxiliary transport device is attached to a protruding portion of the rotating shaft.

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