JP2004154004A - Reaping unit of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the operation efficiency by making a grass diving rod at the right end or plant feet of grain stalks visible from an operating part and to improve the grass dividing of the grain stalks and raising up performances thereof in the part of the grass diving rod at the right end in reaping operation of a combine harvester. <P>SOLUTION: A reaping unit of the combine harvester is composed of a plurality of raising up devices for raising up plant grain stalks in a plurality of rows, a plurality of grass dividing rods provided in front of the raising up devices for grass dividing of the grain stalks and a transporting device for reaping the grain stalks raised up by the raising up devices with a reaping blade and transporting the reaped grain stalks to a rear threshing device in front of the threshing device. A grain tank for temporarily storing grains threshed and separated with the threshing device is installed on the right side of the threshing device and the operating part is provided in front of the grain tank. In the combine harvester, the grass dividing rod located at the right end in the plurality of grass diving rods is composed so as to provide a greater width and a greater height than those of the other grass diving rods. The reaping unit is equipped with a vertical raising up device for grass dividing of the grain stalks and raising up of the grain stalks in front of the grass dividing rod. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a combine harvester that is an agricultural machine.
[0002]
[Prior art]
The prior art is a combine harvester in which a weeding rod is provided in front of the raising device, in which an assist bar is provided on the rightmost weeding rod among the weeding rods. (For example, refer to Patent Document 1).
[0003]
[Patent Document 1]
Published Japanese Utility Model Application No. Hei 6-57119
[Problems to be solved by the invention]
In the above configuration, the operator driving the combine can recognize the position of the weeding rod at the right end by visually recognizing the assist bar from the operation unit, but the planted grain culm surrounds the periphery of the assist bar. Therefore, there is a disadvantage that the weeding rod at the right end cannot be visually recognized directly from the operation unit. That is, since the field scene cannot be visually recognized, the operator cannot confirm the position of the root of the planted grain culm from the operation unit, and therefore, the boundary between the ridge and the planted grain culm at the time of the first round cutting at the beginning of cutting. The position, the boundary between the root of the cut culm and the root of the uncut culm during the side-cutting work, and the position of the root of the lodging culm to the right during the round-cutting were confirmed. It was not possible, and it was difficult to drive the harvester on the combine. Therefore, there is a disadvantage that the working efficiency is poor because the traveling speed is low. Further, in the configuration in which the assist bar for recognizing the position of the weeding rod at the right end is not provided with the vertical raising device, there is a disadvantage that it is difficult to raise the lodging grain culm.
[0005]
[Means for Solving the Problems]
The present invention takes the following technical means in order to solve the above-mentioned problems. That is, according to the first aspect of the present invention, a threshing device 3 is provided above the undercarriage 2 having the traveling device 1, and in front of the threshing device 3, a plurality of raisings that cause multiple rows of planted grain culms are provided. The device 4, a plurality of weeding rods 10 provided in front of the raising device 4 for weeding the cereal culm, and the culm caused by the raising device 4 are cut with a cutting blade 5, and the cut culm is removed. A mowing device 7 comprising a transport device 6 for transporting to the rear threshing device 3 is provided, and a grain tank 8 for temporarily storing the grains threshed and selected by the threshing device 3 is provided on the right side of the threshing device 3. In a combine provided with the operation unit 9 in front of the Glen tank 8, the weeding rod 25 located at the right end of the plurality of weeding rods 10 is wider and higher than other weeding rods, In front of the weeding rod 25, a vertical pulling device 4 for weeding and causing the culm. The is obtained by a combined of cutting device, characterized in that provided.
[0006]
According to the above configuration, when the combine starts harvesting work in the field, the planted grain culm is weeded by the weeding rod 10 and the weeding rod 25 and is caused by the raising device 4. After that, it is cut by the cutting blade 5. In the front part of the weeding rod 25 at the right end, the planted grain culm is caused while being weeded by the vertical pulling device 4a, and is then weeded by the weeding rod 25.
[0007]
According to the second aspect of the present invention, there is provided a combine harvester according to the first aspect, wherein an opening 25a through which a field scene can be seen is provided above the right weeding rod 25. is there.
According to the above configuration, together with the operation of the first aspect, the operator performs the reaping operation while visually confirming the situation of the field scene and the position of the plant base of the planted cereal stem from the opening 25a above the weeding rod 25 from the operation unit 9. Do.
[0008]
According to the third aspect of the present invention, the right weeding rod 25 is composed of an upper weeding rod 25c and a lower weeding rod 25b, and at least the upper weeding rod 25c and the lower weeding rod 25b. The combine harvester according to claim 1 or 2, wherein the weeding rod 25c is made of a synthetic resin material.
[0009]
According to the above configuration, together with the function of the second aspect, when the cereal stem comes into contact with the upper weeding rod 25c, weeding is performed with less impact.
[0010]
【The invention's effect】
Since the present invention is configured as described above, according to the first aspect of the present invention, the traveling becomes easy while visually confirming the position of the weeding rod 25 at the right end when the combine is traveling forward. In addition, in front of the weeding rod 25 at the right end, which is used as a guide for traveling, the weeding and raising of the lodging grain culm is improved by the vertical raising device 4a, so that the weeding rod 25 can be easily recognized.
[0011]
According to the second aspect of the invention, together with the effect of the first aspect, the reaping operation can be performed while visually recognizing the situation of the field scene and the location of the grain stem from the opening 25a. That is, since the operator can confirm the position of the root of the planted grain culm from the operation unit 9, the boundary position between the ridge and the planted grain culm at the time of the first round cutting at the start of cutting, and the existing position at the time of the side cutting work. It is possible to easily confirm the boundary position between the root of the cut culm and the root of the uncut culm, and the position of the root of the lodging culm on the right side during the round cutting. Thereby, the harvesting traveling operation in the combine is facilitated, so that the traveling speed of the harvesting operation is increased, and the harvesting operation with high working efficiency can be performed.
[0012]
According to the third aspect of the invention, together with the effect of the second aspect, even if the cereal stalk contacts the upper weeding rod 25c, the impact is small, so that it is possible to prevent shedding of the grain, tearing of the cereal stem, and pulling out.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
FIGS. 1, 2 and 3 show a combine embodying the embodiment of the present invention.
A mowing device 7 is provided in front of the chassis 2 having the traveling device 1. The cutting device 7 includes a plurality of weeding tools 10 for weeding the planted grain culm, a plurality of raising devices 4 for causing the planted grain culm, a cutting blade 5 for cutting the planted grain culm, and the cutting blade 5. There is provided a transport device 6 for nipping and transporting the grain stalks cut at 5 backward. The transport device 6 includes a stock transport device 12 behind the cutting blade 5 and a feed transport device 13 that takes over the cereal culm transported from the stock transport device 12 and supplies it to the threshing device 3.
[0014]
The reaper 7 is supported by a reaper supporting frame 15 that moves up and down about a rotation shaft 14 a provided above a suspension stand 14 erected at the front of the chassis 2 at a substantially left and right intermediate portion thereof. . The mowing device 7 is configured to move up and down together with the mowing device support frame 15.
[0015]
Above the undercarriage 2, a threshing device 3 having a feed chain 16 that takes over and transports the grain stalks transported from the supply and transport device 13, and a right side of the threshing device 3, A Glen tank 8 for temporarily storing the threshed-selected grains, and an operation unit 9 located in front of the Glen tank 8 and performing various operations of the combine are mounted. A traveling transmission 2 a for driving the traveling device 1 is provided at a front portion of the chassis 2.
[0016]
Behind the threshing device 3, there are a culm chain 17 that takes over and conveys the culm conveyed from the feed chain 16, and a cutter device 18 that cuts the culm below the end of the culm chain 17. Is provided. Further, another working machine such as a knotter for binding the culm may be attached to the rear of the cutter device 18 of this embodiment.
[0017]
When the amount of grains in the Glen tank 8 becomes full, the grains are discharged from the fryer cylinder 19 and the grain discharge auger 20 to the outside of the machine. The lifting cylinder 19 is configured to be pivotable by an electric motor (not shown), and the grain discharge auger 20 is configured to be movable up and down by a hydraulic cylinder 21. Since the grain discharge auger 20 is connected to the upper part of the fryer cylinder 19 and is integrally formed, when the fryer cylinder 19 turns, the grain discharge auger 20 also turns.
[0018]
When the harvesting operation is performed by moving such a combine forward, the culm planted in the field scene is weeded by the weeding tool 10 and then raised by the raising device 4 to the cutting blade 5. Reaping. Thereafter, the paper is conveyed backward by the stock carrier 12 and transferred to the supply carrier 13. The grain culm carried over by the supply conveyance device 13 is further conveyed backward. Then, the grain is transferred to the feed chain 16 of the threshing apparatus 3 and the culm is threshed and sorted by the threshing apparatus 3 while being conveyed backward by the feed chain 16.
[0019]
The kernels thus threshed and sorted are transported from the first-stage grain bin 22 into the Glen tank 8 and temporarily stored therein. When the amount of grains stored in the Glen tank 8 becomes full, the operator is notified by the notification means (buzzer or display device) of the operation unit 9. Then, the operator interrupts the harvesting operation and starts the operation of discharging the grains in the Glen tank 8 to the outside of the machine. The combine is moved to an arbitrary position (position near the truck), the grain discharge auger 20 is separated from the auger receiver 23, and the grain discharge port 20a is moved to a position such as a truck bed. Then, the grain discharge lever 24 provided on the operation unit 9 is set to the on state, and the grains in the Glen tank 8 are discharged to the outside of the machine. When the grain discharge in the Glen tank 8 is completed, the grain discharge auger 20 is stored in the auger receiver 23 again.
[0020]
In such a combine, of the plurality of weeding rods 10 provided in front of the raising device 4, the size of the right weeding rod 25 itself is configured to be larger than the other weeding rods 10. Specifically, it is wider and taller than other weeding rods. The vertical raising device 4a is provided in front of the weeding rod 25 at the right end.
[0021]
A specific mounting configuration of the weeding rod 25 will be described.
A plate 29 is provided at the distal end of a weeding frame 27 extending forward from a horizontal frame 26 provided at the distal end of the mowing device support frame 15, and a plate 29a is further extended forward from the plate 29, The plate 29a supports the lower rear part of the weeding rod 25.
[0022]
The vertical raising device 4a is configured to be supported by a frame 4b protruding forward from an upper portion of the raising device 4. A transmission shaft (not shown) for driving the vertical pulling device 4a is provided in the frame 4b.
Thus, when the combine starts the harvesting operation in the field, the planted culm is weeded by the weeding rod 10 and the weeding rod 25 and is caused by the raising device 4. After that, it is cut by the cutting blade 5. In the front part of the weeding rod 25 at the right end, the planted grain culm is caused while being weeded by the vertical pulling device 4a, and is then weeded by the weeding rod 25.
[0023]
Therefore, when the combine is traveling forward, traveling becomes easy while visually recognizing the position of the weeding rod 25 at the right end. In addition, in front of the weeding rod 25 at the right end, which is used as a guide for traveling, the weeding and raising of the lodging grain culm is improved by the vertical raising device 4a, so that the weeding rod 25 can be easily recognized.
[0024]
An opening 25a through which the field scene can be seen is provided above the weeding rod 25 at the right end. Thus, the operator performs the harvesting operation while visually confirming the situation of the field scene and the position of the root of the planted grain culm from the opening 25a above the weeding rod 25 from the operation unit 9.
[0025]
Therefore, the reaping operation can be performed while visually checking the situation of the field scene and the root position of the cereal stem from the opening 25a. That is, since the operator can confirm the position of the root of the planted grain culm from the operation unit 9, the boundary position between the ridge and the planted grain culm at the time of the first round cutting at the start of cutting, and the existing position at the time of the side cutting work. It is possible to easily confirm the boundary position between the root of the cut culm and the root of the uncut culm, and the position of the root of the lodging culm on the right side during the round cutting. Thereby, the harvesting traveling operation in the combine is facilitated, so that the traveling speed of the harvesting operation is increased, and the harvesting operation with high working efficiency can be performed.
[0026]
Next, the right weeding rod 25 is composed of an upper weeding rod 25c and a lower weeding rod 25b, and at least the upper weeding rod 25c of the upper weeding rod 25c and the lower weeding rod 25b is formed. It is composed of a synthetic resin material.
Thereby, even if the cereal stem comes into contact with the upper weeding rod 25c, the impact is small, so that it is possible to prevent shedding of grain, tearing of the cereal stem, and pulling out.
[0027]
Although there are various types of synthetic resin materials, the synthetic resin material constituting the upper weeder rod 25c is made of a material that transmits light. Thereby, the light is inserted into the weeding rod 25 and becomes brighter, so that the worker can more easily see the field scene from the opening 25a. Further, the upper weeding rod 25c may be made of a transparent member.
[0028]
Further, as shown in FIG. 2, the line of sight A of the operator of the operation unit 9 can see the field scene from the opening 25a, and also see the standing state of the raising lug 4c of the vertical raising device 4a. It is a configuration that can be performed. Thus, the worker can check the status of the operation of the vertical pulling device 4a. Further, in the case of cutting, since it is possible to confirm whether or not the raised rug 4c is along the grain stalk, it is possible to easily correct the traveling direction of the combine.
[0029]
Next, as shown in FIG. 3, the line of sight A of the worker is shifted from the line of action 4d of the raising lug 4c of the vertical raising device 4a. In this case, the tip of the line of sight A of the worker is the tip of the weeding rod 25. Accordingly, since the arrangement of the vertical raising device 4a is displaced from the line of sight A of the worker, it is possible to prevent an obstacle to the work, and it is possible to perform efficient reaping work.
[0030]
Next, the ground angle of the weeding rod 25 will be described. The rearward angle C of the weeding rod 25 is smaller than the ground angle B of the front part of the weeding rod 25. This makes it possible to easily scoop up the extreme lodging grain culm at the tip of the weeding rod 25. In addition, since the ground angle C is configured to be large at the rear portion of the weeding rod 25, the weeding performance of the entangled grain stem is improved.
[0031]
Next, FIG. 4 will be described.
This figure is a view of the weeding rod 25 at the right end viewed from a plane. The weeding rod 25 has a V-shape in plan view. As a result, as shown by an arrow D, the space between the vertical raising device 4a and the raising device 4 is necessarily covered. Thereby, the cereal stem is smoothly guided while abutting on the portion of the arrow D, so that it is possible to prevent threshing, pulling out of the cereal stem, and the like.
[0032]
Next, FIG. 5 will be described.
A hole 30 is formed in the upper weeding rod 25c, and a plate 31 made of a synthetic resin material or a transparent member that transmits light is provided in this portion. Thereby, light is inserted into the inside of the weeding rod 25 and brightened while the strength of the upper weeding rod 25c is secured.
[0033]
Next, FIGS. 6 and 7 will be described.
The weeding rod 25 is configured to be rotatable in the left-right direction about a longitudinal axis 32 provided behind the weeding rod 25 as an axis. Specifically, a vertical axis 32 is provided rotatably with respect to a U-shaped plate 29 in a side view, a plate 29a is provided on the vertical axis 32, and a weeding rod 25 is provided at a front portion of the plate 29a. It is configured to be fixedly provided. Further, a plate 32 a is provided on the vertical axis 32, a cable 33 is provided on the plate 32 a, and the cable 33 is pushed and pulled by an operation lever 34 provided on the operation unit 9 for operation. This makes it possible to easily change the weeding width.
[0034]
In particular, when the weeding rod 25 is likely to come into contact with the ridge at the edge of the ridge, the weeding rod 25 is moved away from the ridge. Rotate in the direction that does not push.
Next, FIG. 8 will be described.
[0035]
This figure shows the attachment / detachment configuration of the weeding rod 25. A weeding frame 27 extending forward from a horizontal frame 26 provided at the tip of the mowing device support frame 15 is extended downward, and a pin 35 is pushed upward from the front of the weeding frame 27. It is provided upright. The pin 35 is provided with two bosses 36a and 36b fixed thereto. On the other hand, a pin 37a and a pin 37b that can be inserted into the bosses 36a and 36b are fixedly provided below the weeding rod 25. The pin 37a and the pin 37b are inserted into the bosses 36a and 36b, and the weeding rod 25 is mounted. And it is comprised so that a hairpin 38a and a hairpin 38b may not come off.
[0036]
Thereby, the attachment and detachment of the weeding rod 25 can be easily performed, so that the maintenance management is facilitated. Further, since the pins 37a and 37b are configured to be mounted rearward of the combine, even if the weeding rod 25 comes into contact with an obstacle, an excessive force acts on the weeding rod 25. Damage can be prevented.
[0037]
As shown in FIG. 9, the weeding rod 25 other than the weeding rod 25 at the right end may be configured by a weeding rod 39 having a large width and a high height. In this case, if the weeding rod 25 and the weeding rod 39 are shared, the cost can be reduced.
FIG. 10 shows a specific shape of the upper weeding rod 25c of the weeding rod 25. With respect to the opening angle E of the lower end of the upper weeding rod 25c, the opening angle increases as it goes upward. The opening angle of the upper end of the upper weeding rod 25c is F, so that E <F. As a result, the size of the opening 25a is inevitably increased, so that the worker can easily see the field scene from the opening 25a. Further, since the opening 25a is large, a lot of light enters into the weeding rod 25, so that the inside of the weeding rod 25 becomes bright. This makes it easier to see the field scene from the opening 25a.
[0038]
Next, FIGS. 11 and 12 will be described.
In this configuration, in the plurality of weeding rods 10 provided in front of the raising device 4, the second weeding rod 11 is provided in front of the rightmost weeding rod 10a. The upper part of the second weeding rod 11 is provided with an opening 11a through which the right weeding rod 10a can be viewed. This work situation is shown in FIG. 13 and FIG. As described above, the grain culm is pushed and spread by the second weeding rod 11 provided in front of the weeding rod 10a at the right end, so that the operator can easily recognize the weeding rod 10a and the root of the grain culm from the operation unit 9. become able to.
[0039]
That is, as shown in FIG. 13, the boundary position between the ridge and the ridge can be recognized, and as shown in FIG. 14, even at the time of the cross-cutting work, the root position of the weeding rod 10a at the right end and the origin of the grain culm can be easily confirmed. Become like Furthermore, since the second weeding rod 11 is configured to spread out toward the rear and extends almost to approach the rear raising device 4, the cereal stem is weeded by the second weeding rod 11. After that, it is conveyed along the surface of the second weeding rod 11 and is continuously conveyed to the raising lug 42 of the raising device 4 in such a state, so that the conveyance of the cereal stem is performed stably. become.
[0040]
In addition, since the distal end portion 42 of the second weeding rod 11 configured in a V shape is configured to be inclined backward, the weeding performance of the cereal stem is further improved.
Thus, when the harvesting operation is started with the combine in the field, the planted grain culm is weeded by the weeding rod 10, caused by the raising device 4, and then cut by the cutting blade 5. In the front part of the weeding rod 10a, the planted grain culm is weeded by the second weeding rod 11. At this time, as described above, the operator operates the operating section 9 to open the right side of the weeding rod 10a from the opening 11a at the top of the second weeding rod 11 and the surrounding field scene and the root of the planted grain culm. The mowing work can be performed while visually recognizing the position, so the boundary position between the ridge and the planted grain culm at the time of the first round mowing at the beginning of mowing, the root of the already harvested grain culm at the time of side mowing and the uncutting It is possible to easily confirm the boundary position of the grain culm with the root of the culm and the position of the lodged cereal culm to the right side when cutting around, so that the mowing work with high working efficiency can be performed. .
[0041]
Further, the upper end of the second weeding rod 11 is configured to be substantially the same height as the planted cereal culm or to a position higher than the planted cereal culm.
As a result, the tip portion of the planted grain culm does not block the opening 11a above the second weeding rod 11. Therefore, since the tip portion of the planted grain culm does not block the opening 11a on the upper part of the second weeding rod 11, it is easy to visually recognize the root position of the weeding rod 10a and the grain culm from the opening 11a. It becomes possible.
[0042]
In such a configuration, as shown in FIG. 11, a gap 40 is provided between the right weeding rod 10a and the second weeding rod 11 as indicated by a hatched portion. As a result, light enters the second weeding rod 11 from this gap 40, so that the inside of the second weeding rod 11 becomes bright, and the root of the weeding rod 10a and the grain culm from the opening 11a as described above. It becomes even easier to see.
[0043]
Next, FIG. 15 will be described.
The second weeding rod 11 is formed in a V-shape, and its surface is formed in a planar shape without unevenness. Further, the angle G for forming the V shape of the second weeding rod 11 is acute. Thereby, the weeding performance of the cereal stem is improved. A plurality of holes 41 are provided on the surface of the second weeding rod 11. Of course, the number of the plurality of holes 41 is provided so as not to affect the weeding of the grain stalk. Thereby, light enters into the second weeding rod 11 from the hole 41, so that the inside of the second weeding rod 11 becomes bright, and as described above, the weeding rod 10a and the stem of the cereal stem are opened from the opening 11a. Is much easier to see.
[Brief description of the drawings]
FIG. 1 is a left side view FIG. 2 is a right side view FIG. 3 is a front view FIG. 4 is a plan view FIG. 5 is a right side view FIG. 6 is a right side view FIG. 7 is a plan view FIG. Right side view [Fig. 9] Front view [Fig. 10] Rear view and perspective view [Fig. 11] Right side view [Fig. 12] Front view [Fig. 13] Plan view [Fig. 14] Plan view [Fig. Explanation of code]
DESCRIPTION OF SYMBOLS 1 ... Traveling device, 2 ... chassis, 3 ... Threshing device, 4 ... Raising device, 4a ... Vertical raising device, 5 ... Cutting blade, 6 ... Conveying device, 7 ... Cutting device, 8 ... Glen tank, 9 ... Operation part, 10: weeding rod, 25: right end weeding rod, 25a: opening, 25b: lower weeding rod, 25c: upper weeding rod.

Claims (3)

A threshing device 3 is provided above the undercarriage 2 having the traveling device 1, and a plurality of raising devices 4 for causing multiple rows of planted grain culms in front of the threshing device 3, and a front of the raising device 4. And a plurality of weeding rods 10 for weeding the culm and the culm caused by the raising device 4 are cut by the cutting blade 5 and the cut culm is conveyed to the threshing device 3 at the rear. A harvesting device 7 comprising a conveying device 6 is provided, and a grain tank 8 for temporarily storing grains selected by threshing by the threshing device 3 is provided on the right side of the threshing device 3. An operation unit 9 is provided in front of the grain tank 8. Of the plurality of weeding rods 10, the weeding rod 25 located at the right end of the plurality of weeding rods 10 is wider and higher than the other weeding rods 25. Combination provided with a vertical pulling device 4a for causing weeding of culms Of cutting equipment. 2. The combine harvester according to claim 1, wherein an opening 25a is provided above the right weeding rod 25 so that the field scene can be seen. The right weeding rod 25 is composed of an upper weeding rod 25c and a lower weeding rod 25b, and at least the upper weeding rod 25c of the upper weeding rod 25c and the lower weeding rod 25b is made of a synthetic resin material. 3. The combine harvester according to claim 1, wherein the harvester comprises:

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