JP2011092094A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester advantageous from the viewpoints of structure and weight and capable of performing a peripheral area harvesting as well as center area harvesting while stably traveling and easily avoiding tramp of grain culm. <P>SOLUTION: A distance between tips of a first outer grass divider and a first inner grass divider is made larger than the distance between tips of a second outer grass divider and a second inner grass divider, and larger than the distance between tips of the first inner grass divider and the second inner grass divider. The tip position of the first outer grass divider almost coincides with the outer end 16a of a crawler belt 16 in lateral direction of a traveling body. The tip position of the second outer grass divider coincides with the outer end 16a of the crawler belt 16 in the lateral direction of the traveling body. A core metal 47 embedded in the crawler belt 16 and a grounding wheel 14 are positioned at a side deviated outside of the traveling body relative to the center position C2 of the crawler belt 16 in lateral direction of the belt. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a combine including a traveling machine body having a pair of left and right crawler traveling devices, and a pre-cutting processing unit including four weeding tools arranged in the lateral direction of the traveling machine body coupled to the front portion of the traveling machine body.

Conventionally, there has been a combine described in Patent Document 1, for example.
The combine described in Patent Literature 1 supports a cutting unit main frame of a cutting unit so as to be slidable along a driving shaft, and a transverse feed member engaged with the cutting unit main frame, and a threaded engagement with the transverse feeding member A transverse feed mechanism having a screw shaft and a geared motor that drives and rotates the screw shaft. The mowing part is slid to the right with respect to the machine body to the maximum by the lateral feed mechanism to perform the middle cutting operation.

Further, the crawler traveling device of the conventional combine traveling machine body, as is well known, a crawler belt in which a core metal having a protrusion protruding toward the inner peripheral side of the belt is embedded at a predetermined interval along the belt longitudinal direction, A grounding roller around which a crawler belt is wound so as to be engaged with the protrusion, and the cored bar and the grounding wheel are disposed at a center position in the belt width direction.
And, in the case of middle cutting work, the interval between the outer ends of the crawler belts of the pair of left and right crawler traveling devices is narrowed so that the crawler belts can be prevented from being stepped on the side of the uncut mow on both sides. It is.

JP-A-10-327644 (paragraphs [0034], [0036], [0037], FIGS. 2 and 3)

  When the above-mentioned conventional technology is applied to obtain a combine that can perform both cutting and cutting in the form of swivel cutting and cutting in the middle of cutting, the pre-cutting processing unit can be slid horizontally Therefore, a supporting structure for supporting the structure was necessary. Furthermore, it is necessary to configure the culm transport by the transport device that supplies the threshing device that has been cut by the pre-cutting processing unit to the threshing device, regardless of the displacement of the pre-cutting processing unit. It was disadvantageous in terms of structure and weight.

Also, in the case of mid-cutting work, the distance between the outer ends of the crawler belts of the pair of left and right crawler traveling devices is narrowed so as to avoid stepping of the planted cereals by the crawler belt on the uncut ground on both sides. Therefore, the sideways fall angle of the combine (the limit angle at which the combine does not fall) may be reduced.
In other words, when the combine is tilted sideways, the grounded crawler belt portion is tilted at the fulcrum in either of the pair of left and right crawler travel devices, but the crawler belt is tilted in the belt width direction. The portion where no ring exists is easily bent and deformed, and the portion where the core metal and the ground wheel are present is not easily bent and deformed.
Therefore, when the combine is tilted sideways, a portion of the crawler belt where the cored bar and the grounding wheel do not exist is bent and deformed, and a portion where the cored bar and the grounded wheel are present and is not easily bent and deformed serves as a fulcrum. And lean.
As described above, the crawler traveling device included in the conventional combine traveling machine body includes the cored bar and the grounding wheel at the center position in the belt width direction.
For this reason, as the distance between the outer ends of the crawler belts of the pair of left and right crawler traveling devices is narrowed, the position of the core metal and the ground wheel to be the fulcrum of inclination is set on the inward side of the traveling machine, and the sideways of the combine The fall angle may be small.

  The object of the present invention is to enable cutting and running while stably running in a state in which it is easy to avoid stepping on the cereals in both the rotary cutting operation and the middle cutting operation, and is advantageous in terms of structure and weight. It is to provide a combine that can be obtained.

A first characteristic configuration of the present invention includes a traveling machine body having a pair of left and right crawler traveling devices, and a cutting pretreatment unit including four weeding tools arranged in the lateral direction of the traveling machine body is connected to the front part of the traveling machine body In the combined combine
A first outer weeding tool located at the end of one of the four weeding tools in the lateral direction of the traveling body and a first middle weeding tool located adjacent to the first outer weeding tool. A distance between the tips is set such that the second outer weeding tool located at the extreme end of the other of the four weeding tools in the lateral direction of the traveling body and the second outer weeding tool located adjacent to the second outer weeding tool. Set the interval between the tips of the mid-divided tools, and larger than the interval between the tips of the first and second divided-plotted tools,
The position of the tip of the first outer weed tool and the crawler belt in the crawler traveling device located on the lateral end side of the traveling machine body on the side where the first outer weed tool is located among the pair of left and right crawler traveling devices. The position of the outer edge in the lateral direction of the traveling machine body coincides or substantially coincides with the lateral direction of the traveling machine body,
The crawler belt travels in the crawler traveling device located on the lateral end side of the traveling machine body on the side where the second weeding tool is located, of the pair of left and right crawler traveling devices. The position of the outer edge in the lateral direction of the fuselage is the same or almost the same in the lateral direction of the traveling aircraft,
Each of the crawler traveling devices includes a crawler belt in which a metal core having a protrusion protruding toward the inner peripheral side of the belt is embedded at predetermined intervals along the belt longitudinal direction, and the crawler belt so as to engage with the protrusion. And a grounding wheel wound with
The core metal and the grounding wheel are provided at a position offset from the center position in the belt width direction of the crawler belt toward the outer side of the traveling machine body.

  With the combine having this configuration, the cutting and traveling can be performed both in the form of the turn mowing work and in the form of the middle cutting work.

That is, FIG. 5A illustrates a traveling procedure in the case of the swallowing work. The circles shown in FIG. 5 (a) indicate planted cereals, and the symbols x shown in FIG. 5 (a) indicate stumps. As shown in this figure, in the state where the first outer weeding tool 22 is located in the already cut area C, the front between the first outer weeding tool 22 and the tips 22a and 25a of the second outer weeding tool 25. The traveling machine body is caused to travel while aligning the pre-cutting processing unit with the planted culm so that the Sanjo planted culm is positioned at the same position.
Then, between the first outer weed tool 22 and the tips 22a, 23a of the first middle weed tool 23, between the first middle weed tool 23 and the tips 23a, 24a of the second middle weed tool 24, One set of planted cereals can be introduced between the tips 25a and 24a of the second outer weed tool 25 and the second middle weed tool 24. A planted cereal to be introduced between the second outer weed tool 25 and the second middle weed 24, and a planted cereal which is located in the uncut area A in a state adjacent to the planted cereal The second outside weeding tool 25 is positioned in between, and the second outside weeding tool 25 is used to divide the planted cereal into a planted cereal to be harvested and a planted cereal to be non-reached. It is possible to carry out cutting and running in the form of a rotating mowing operation while cutting the Sanjo planted cereals.

  In this cutting and traveling, the position of the tip 25a of the second outer weed tool 25 and the position of the outer end 16a of the crawler belt 16 in the crawler traveling device on the side of the traveling machine body where the second outer weed tool 25 is located Is the same or almost the same in the lateral direction of the traveling machine body, it is easy to secure the distance between the planted cereals of the uncut area A and the crawler belt 16 located on the lateral outer side of the second outer weeding tool 25. It is easy to avoid trampling of the planted cereal of the uncut area A by the crawler belt 16.

FIG.5 (b) has illustrated the driving | running | working procedure in the case of the middle cutting operation. The circles shown in FIG. 5 (b) indicate planted cereals. As shown in this figure, in the state where uncut ground A or B is located on the lateral outer side of the first outer weeding tool 22 and the second outer weeding tool 25, the first outer weeding tool 22 and the second outer weeding tool 22 The traveling machine body is caused to travel while aligning the pre-cutting processing unit with respect to the planted cereal so that the four rows of planted cereal are positioned in front of the tips 22a and 25a of the grass tool 25.
Then, between the front ends 22a and 23a of the first outer weeding tool 22 and the first middle weeding tool 23, and between the second outer weeding tool 25 and the front ends 25a and 24a of the second middle weeding tool 24. And the first middle weed tool 23 and the second middle weed tool 24 are set to be larger than between the tips 23a, 24a of the second middle weed tool 24 and the first outer weed tool 22 and the first middle weed tool Two rows of planted cereals can be introduced between the tips 22a and 23a of the 23, and between the tips 23a and 24a of the first and second weeds 23 and 24, and the second A single set of planted cereals can be introduced between the outer weed tools 25 and the tips 25a, 24a of the second middle weed tools 24. A planted cereal to be introduced between the first outer weed 22 and the first middle weed 23, and a planted cereal which is located in an uncut region B in a state adjacent to the planted sorghum The first outer weed tool 22 is positioned in between, and the first outer weed tool 22 divides the planted cereal into a planted cereal to be harvested and a planted cereal to be harvested. it can. A planted cereal to be introduced between the second outer weed tool 25 and the second middle weed 24, and a planted cereal which is located in the uncut area A in a state adjacent to the planted cereal The second outside weeding tool 25 is positioned between them, and the second outside weeding tool 25 can divide the planted cereal into a planted cereal that is to be harvested and a planted cereal that is not to be harvested. Thus, the cutting and traveling can be carried out in the middle-cutting cutting mode while cutting the Shijo planted cereals.

  In this cutting and traveling, the position of the tip 22a of the first outer weed tool 22 and the position of the outer end 16a of the crawler belt 16 in the crawler traveling device on the side of the traveling machine body where the first outer weed tool 22 is located Of the crawler belt 16 in the crawler traveling device on the lateral end side of the traveling machine body where the second outer weed tool 25 is located, and the position of the tip 25a of the second outer weed tool 25. Since the position of the outer end 16a coincides or substantially coincides with the traveling machine body in the lateral direction, the planted grain culm of the uncut area B located on the lateral outer side of the first outer weeding tool 22 and the crawler belt 16 It is easy to secure the distance between the planted cereals of the uncut area A and the crawler belt 16 located on the laterally outer side of the second outer weeding tool 25. Treading of planted grains with crawler belt 16 Avoid easy.

Further, the combine of this configuration is such that each of the crawler traveling devices is engaged with a crawler belt in which a core metal having a protrusion protruding toward the inner peripheral side of the belt is embedded at predetermined intervals along the belt longitudinal direction. The crawler belt is wound around the grounding wheel, and the cored bar and the grounding wheel are provided at a position offset to the outer side of the traveling machine body from the center position in the belt width direction of the crawler belt. Yes.
For this reason, in the case of mid-cutting work, the distance between the outer ends of the crawler belts of the pair of left and right crawler traveling devices is avoided so that the stepping of the planted cereals by the crawler belt in the uncut area on both sides can be avoided. Even if it is narrowed, it is possible to avoid the setting of the position of the core metal and the ground wheel to be the fulcrum of the inclination toward the inside of the traveling machine, and it is easy to ensure a large lateral fall angle of the combine.

  Therefore, the crawler of the planted stalks in the uncut area can be used for cutting and traveling in any form while being able to perform the cutting and traveling in any form of the rotary cutting work and the middle cutting work. It is possible to easily avoid the stepping by the belt and easily perform the work, and to perform the cutting operation while running stably. In addition, a simple structure in which the intervals between the weeding tools are set to appropriate intervals is sufficient, and a light weight and low cost can be obtained.

  According to a second characteristic configuration of the present invention, the grounding wheel is configured by concentrically connecting an outer ring on the outer side of the traveling machine body and an inner ring on the inner side of the traveling machine body, and between the outer ring and the inner ring. The protrusion is engaged with the outer ring, and the width along the belt width direction of the facing surface of the outer ring facing the inner circumferential surface of the crawler belt is formed wider than the width of the facing surface of the inner ring along the belt width direction. It is in the point.

With this configuration, as the combine is tilted sideways and the grounding wheel is tilted, the opposite surface of the outer ring facing the inner peripheral surface of the crawler belt is received by the portion where the cored bar is embedded, and The tilting of the wheel can be restricted.
Further, when the opposing surface of the outer ring can be received by the portion where the core metal is embedded, the width along the belt width direction of the opposing surface of the outer ring is the width along the belt width direction of the opposing surface of the inner ring. Since it is formed wider than that, it is possible to control the tilting of the grounding wheel at an early stage and to make it run more stably.

  According to a third characteristic configuration of the present invention, each of the outer ring and the inner ring is configured such that a cylindrical member that forms the facing surface is integrally provided on an outer peripheral portion of the disk-shaped member, and the disk-shaped member in the outer ring is formed. Is thicker than the thickness of the disk-shaped member in the inner ring.

If it is this structure, since each of the opposing surface of an outer ring | wheel and an inner ring | wheel is formed in the outer peripheral surface of the cylindrical member integrally provided in the outer peripheral part of the disk-shaped member, while aiming at weight reduction of a grounding wheel It is easy to ensure the width along the belt width direction of the opposing surface.
In addition, since the thickness of the disk-shaped member in the outer ring is thicker than the thickness of the disk-shaped member in the inner ring, the center of gravity position of the combine can be lowered, and the strength of the outer ring can be easily secured, and the grounding rotation can be ensured. The tilting of the wheel can be reliably controlled.

According to a fourth characteristic configuration of the present invention, the outer ring is formed by integrally providing a cylindrical member forming the facing surface on an outer peripheral portion of the disk-shaped member,
The inner ring is formed in a disk shape thicker than the thickness of the disk-shaped member in the outer ring.

With this configuration, the opposing surface of the outer ring is formed by the outer peripheral surface of a cylindrical member that is integrally provided on the outer peripheral portion of the disk-like member. It is easy to ensure the width along the belt width direction of the surface.
Also, since the inner ring is formed in a disk shape thicker than the disk-shaped member of the outer ring, the weight of the disk-shaped inner ring is easily increased compared to the outer ring, and the center of gravity position of the combine is increased. The vehicle can be made to travel more stably.

It is a side view which shows the whole combine. It is a front view which shows a combine. It is a top view which shows arrangement | positioning of a weeding tool, a crawler travel apparatus, and a raising apparatus. It is sectional drawing of a crawler belt and a grounding wheel. (A) is explanatory drawing which shows the driving | running point in the case of performing a cutting operation, (b) is explanatory drawing which shows the driving | running point in the case of performing a middle cutting operation. It is sectional drawing of the crawler belt and grounding roller which show 2nd Embodiment. It is a principal part side view of the combine which shows 3rd Embodiment. It is a principal part side view of the combine which shows 4th Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
FIG. 1 is a side view showing the entire combine according to the embodiment of the present invention. FIG. 2 is a front view showing a main part of the combine according to the embodiment of the present invention.
The combine according to the embodiment of the present invention includes a traveling machine body equipped with a pair of left and right crawler traveling devices 10a and 10b, and a pre-processing unit frame 21 is connected to the front part of the body frame 1 of the traveling machine body. A reaping pretreatment unit 20 is provided, and a threshing device 2, a grain tank 3, and an auger device 9 for conveying the grain are provided on the rear side of the machine body frame 1 of the traveling machine body.

  This combine performs harvesting operations such as rice and wheat, and is configured in detail as follows.

  The traveling machine body includes a driving unit equipped with an engine 4 provided at the right end portion on the front end side of the machine body frame 1, and drives the pair of left and right crawler traveling devices 10 a and 10 b by the driving force output from the engine 4 to self-run. To do. The traveling machine body includes a driving unit 5 equipped with a driving seat 5 a provided above the engine 4, and is of a riding type so as to ride on the driving unit 5 for driving.

  As shown in FIG. 1, each of the left and right crawler travel devices 10 a and 10 b can be driven to a track frame 12 connected to a body frame 1 of a traveling machine body via a posture changing mechanism 11 and a front end portion of the machine frame 1. A supported crawler driving wheel 13, six grounding wheels 14 that are rotatably supported by the track frame 12 arranged in the front-rear direction of the traveling machine, and a crawler tension wheel provided rotatably at the rear end of the track frame 12. 15, a rubber crawler belt 16 wound around each of the wheel bodies 13 and 15 and the grounding wheel 14 is provided.

  The posture changing mechanism 11 supports a pair of front and rear swing arms 7a and 7b swingably on the body frame 1 and the track frame 12, and simultaneously swings and drives the swing arms 7a and 7b. The posture with respect to the twelve body frames 1 can be changed in the vertical direction.

  As shown in FIG. 4, each of the six grounded rolling wheels 14 is configured by concentrically connecting an outer ring 41 on the outer side of the traveling machine body and an inner ring 42 on the inner side of the traveling machine body with a rotation shaft 43. A bearing 45 mounted on a boss 44 fixed to the track frame 12 is rotatably supported. The boss 44 is integrally provided with a guide 40 for preventing the crawler belt 16 from coming off.

  The crawler belt 16 is configured by embedding a cored bar 47 having two left and right projections 46 projecting toward the inner peripheral side of the belt in a rubber belt main body 16b at predetermined intervals along the belt longitudinal direction. The protrusion 46 is wound around each of the grounding rollers 14 so as to engage between the outer ring 41 and the inner ring 42.

  The core metal 47 has a symmetrical cross-sectional shape, and its center line C1 is shifted to the outer side of the traveling machine body from the center line C2 of the belt body 16b so that a large lateral fall angle of the combine can be secured. The cored bar 47 and the grounding wheel 14 are provided at a position offset toward the outer side of the traveling machine body from the center position C2 in the belt width direction.

  The protruding length of the cored bar 47 to the outside is set so that the outer end 47a of the cored bar 47 in the lateral direction of the traveling machined body protrudes outward from the outer end 41a of the outer ring 41. The projecting length to the inside of the cored bar 47 is set so that the inner end 47b of the traveling machine body 47 in the lateral direction of the projecting body 47 projects inward of the traveling machine body from the inner end 42a of the inner ring 42. The distance between the outer end 47a of the core metal 47 and the outer end 41a of the outer ring 41 in the lateral direction of the traveling machine body is greater than the distance between the inner end 47b of the core metal 47 and the inner end 42a of the inner ring 42 in the lateral direction of the traveling machine body. It is set to small.

  The protruding length of the cored bar 47 is set so that the outer end 47a of the cored bar 47 in the lateral direction of the traveling machine body and the outer end 41a of the outer ring 41 substantially coincide with each other in the lateral direction of the traveling machined body. Thereby, it is possible to prevent an excessive bending force from acting on the cored bar 47 when a force that causes the combine to fall sideways is applied. The protruding length of the cored bar 47 may be set so that the outer end 47a of the cored bar 47 in the lateral direction of the traveling machine body and the outer end 41a of the outer ring 41 coincide with each other in the lateral direction of the traveling machined body. In a state where the outer end 47a in the lateral direction of the traveling body of the metal 47 is located on the inner side of the outer end 41a of the outer ring 41, the outer end 47a in the lateral direction of the traveling body of the core metal 47, and the outer end 41a of the outer ring 41 The protruding length of the cored bar 47 may be set so that the two substantially coincide with each other in the lateral direction of the traveling machine body.

  The distance between the outer end 47a of the core metal 47 and the outer end 16a of the crawler belt 16 in the lateral direction of the traveling machine body, and the distance between the center line C1 of the core metal 47 and the outer end 47a of the core metal 47 in the lateral direction of the traveling machine body. Are set to have the same or substantially the same interval, and the protruding length to the outside of the cored bar 47 is set. It should be noted that the distance between the outer end 47a of the core metal 47 and the outer end 16a of the crawler belt 16 in the lateral direction of the traveling machine body is the lateral direction of the traveling machine body between the center line C1 of the core metal 47 and the outer end 47a of the core metal 47. The protruding length of the cored bar 47 to the outside may be set so as to be smaller than the interval.

  The grounding wheel 14 includes an outer ring 41 and an inner ring 42 in which cylindrical members 48a and 48b are integrally provided concentrically on the outer periphery of the disk-like members 49a and 49b. The outer peripheral surfaces of the cylindrical members 48 a and 48 b are formed on the opposing surfaces 50 a and 50 b that oppose the inner peripheral surface of the crawler belt 16, and the width E1 along the belt width direction of the opposing surface 50 a in the outer ring 41 is The opposed surface 50b is formed wider than the width E2 along the belt width direction. The thickness of the disk-shaped member 49a in the outer ring 41 is made thicker than the thickness of the disk-shaped member 49b in the inner ring 42. The disc-shaped member 49a in the outer ring 41 is integrally formed with a convex portion 49b that protrudes outwardly from the outer surface side of the disc-shaped member 49a into a cylindrical shape (doughnut shape).

  The pre-processing unit frame 21 of the pre-cutting processing unit 20 is connected to the body frame 1 so as to be swingable up and down around the axis P. The pre-cutting processing unit 20 is arranged side by side in the lateral direction of the traveling machine body at the front end of the pre-cutting processing unit 20 when the pre-processing unit frame 21 is swung up and down with respect to the body frame 1 by the lifting cylinder 6. The four weeding tools 22 to 25 are moved up and down to a descending work state where the four weeding tools 22 to 25 are lowered near the farm scene, and the non-working state in which the four weeding tools 22 to 25 are elevated from the farm scene.

  When the traveling body is run with the pre-cutting processing unit 20 in the descending work state, the pre-cutting processing unit 20 raises the planted culm and cuts the mowing cereal, and the start end of the threshing feed chain 2a of the threshing device 2 To supply. The threshing device 2 sandwiches the stock side of the harvested cereal mash by the threshing feed chain 2a and conveys the traveling machine body backward, thereby supplying the tip side of the harvested cereal mash to the handling room (not shown). To process. The grain tank 3 collects and stores the threshed grains conveyed from the threshing apparatus 2.

The pre-cutting processing unit 20 will be described in detail.
As shown in FIGS. 1, 2, and 3, the pre-processing unit frame 21 of the pre-cutting processing unit 20 extends from the machine frame 1 of the traveling machine body so as to be swingable up and down around the axis P in the forward direction of the traveling machine body. Main frame 21a, and four traveling tool body support rods 21b and 21c facing the front and rear of the traveling machine body, which are connected to each other at a predetermined interval in the lateral direction of the traveling machine body on the extending end side of the main frame 21a. Configured. The left and right sides of the pre-cutting processing unit 20 are covered with left and right cutting covers 8a and 8b.

  The pre-harvest processing unit 20 includes four weeding tools 22 to 25 and three pulling devices 26, 27, and 28 arranged side by side in the traveling machine body on the rear side of the traveling machine body of the weeding tools 22 to 25. A clipper-shaped mowing device 29 provided on the base end side of the weeding tool support rods 21b, 21c, and a conveying device 30 provided from above the mowing device 29 to the front of the starting end portion of the threshing feed chain 2a. It is configured.

The four weeding tools 22 to 25 are fixed to the front end portions of the corresponding weeding tool support rods 21b and 21c among the four weeding tool support rods 21b and 21c.
The right weeding tool support rod 21c, the rightmost weeding tool support rod 21c among the weeding tool support rods 21b and 21c, is fixed to the right weeding tool support rod 21c. A support bracket 18 that supports the side is fixed to the pretreatment unit frame 21. The right weeding tool support rod 21c is disposed on the outer side of the body with respect to the right mowing cover 8b.

FIG. 3 is a plan view showing the arrangement of the weeding tools 22 to 25 and the crawler traveling devices 10a and 10b.
As shown in FIGS. 2 and 3, the arrangement of the four weeding tools 22 to 25 is the first outer branch located at the lateral end of the four weeding tools 22 to 25 on the side where the operation unit 5 is located. The distance D1 between the tips 22a and 23a of the first middle weed tool 23 located adjacent to the first tool 22 and the first outer weed tool 22 is the lateral end opposite to the side where the operating unit 5 is located. A distance D3 between the second outer weed tool 25 located at the front end 25a, 24a of the second middle weed tool 24 located adjacent to the second outer weed tool 25, and the first middle weed tool 23. And the arrangement | positioning set larger than the space | interval D2 of the front-end | tips 23a and 24a of the 2nd middle part cutting tool 24 is carried out. The distance D2 between the tips 23a, 24a of the first middle weed tool 23 and the second middle weed tool 24 is the distance D3 between the second outer weed tool 25 and the tips 25a, 24a of the second middle weed tool 24. A little narrower than.

  The arrangement of the first outer weed tool 22 with respect to the crawler traveling devices 10a and 10b is arranged at the position of the tip 22a of the first outer weed tool 22 and the side of the traveling machine body on the side where the first outer weed tool 22 is located. The position of the outer end 16a of the crawler belt 16 in the lateral direction of the traveling machine body in the crawler traveling apparatus 10b (hereinafter referred to as the right crawler traveling apparatus 10b) is substantially aligned in the lateral direction of the traveling machine body. Yes. That is, the front end 22a of the first outer weed tool 22 is slightly displaced inward of the traveling machine body with respect to the outer end 16a of the crawler belt 16 of the right crawler traveling device 10b.

  As for the arrangement of the first outer weed tool 22 with respect to the crawler traveling device 10b on the right side, the tip 22a of the first outer weed tool 22 is slightly displaced to the outer side of the traveling machine body with respect to the outer end 16a of the right crawler belt 16. Alternatively, an arrangement in which the position of the tip 22a of the first outer weed tool 22 and the position of the outer end 16a of the right crawler belt 16 coincide in the lateral direction of the traveling machine body may be employed.

  The arrangement of the second outer weeding tool 25 with respect to the crawler traveling devices 10a and 10b is arranged at the position of the tip 25a of the second outer weeding tool 25 and the side of the traveling machine body on the side where the second outer weeding tool 15 is located. The position of the outer end 16a of the crawler belt 16 in the lateral direction of the traveling machine body in the crawler traveling apparatus 10a (hereinafter referred to as the left crawler traveling apparatus 10a) is aligned in the lateral direction of the traveling machine body. .

  As for the arrangement of the second outer weed tool 25 with respect to the crawler traveling device 10a on the left side, the tip 25a of the second outer weed tool 25 is outside the traveling machine body with respect to the outer end 16a of the crawler belt 16 in the left crawler traveling device 10a. Alternatively, an arrangement that is slightly displaced inside the traveling machine body may be employed.

  As shown in FIG. 2, the outer end 2 a of the threshing device 2 in the lateral direction of the traveling machine body and the position of the tip 25 a of the second outer weed tool 25 are aligned or substantially coincided with each other in the lateral direction of the traveling machine body. The distance in the lateral direction of the traveling machine body between the outer end 2a of the threshing device 2 in the lateral direction of the traveling machine body and the tip 25a of the second outer weeding tool 25 is the outer side of the grain tank 3 in the lateral direction of the traveling machine body. The distance between the end 3a and the tip 22a of the first outer weed tool 22 in the lateral direction of the traveling machine body is narrower.

  The center 2b of the threshing device 2 in the lateral direction of the traveling machine body is located within the belt width of the crawler belt 16 in the left crawler traveling device 10a (inside the center line C1 of the core metal 47), and the grain tank 3 travels. The threshing device 2 and the grain tank 3 travel so that the center 3b in the lateral direction of the machine body is located within the belt width of the crawler belt 16 in the right crawler traveling device 10b (inside the outer end 41a of the outer ring 41). Deployed on the aircraft. Thereby, the weight balance of the body in the transverse direction of the traveling body can be improved. The grain tank 3 travels so that the center 3b of the grain tank 3 in the lateral direction of the traveling machine body is located inside the center line C1 of the cored bar 47 of the crawler belt 16 in the crawler traveling device 10b on the right side. It may be deployed on the aircraft.

  Further, the outer end 2a of the threshing apparatus 2 in the lateral direction of the traveling machine body and the outer end 16a of the crawler belt 16 in the left crawler traveling apparatus 10a are aligned or substantially coincided with each other in the lateral direction of the traveling machine body. The distance in the lateral direction of the traveling machine body between the outer end 2a of the threshing device 2 in the lateral direction of the traveling machine body and the outer end 16a of the crawler belt 16 in the crawler traveling device 10a on the left side is determined in the lateral direction of the traveling machine body of the grain tank 3. The distance between the outer end 3a and the outer end 16a of the crawler belt 16 in the lateral direction of the traveling machine body in the crawler traveling device 10b on the right side is narrower than the distance in the lateral direction of the traveling machine body.

  As shown in FIGS. 2 and 3, the first outer weeding tool 22, the first middle weeding tool 23, and the second outer weeding tool 25 are located rearward from the tip side of the weeding tools 22, 23, 25. Guide rods 22b, 23b, and 25b extending toward the pulling devices 26, 27, and 28 are provided, and the guide rods 22b, 23b, and 25b are used to raise the planted grain culm plant stock side backward. Guide to devices 26, 27, 28.

Fig.5 (a) is explanatory drawing which shows the driving | running | working point in the case of performing a swallowing work. FIG.5 (b) is explanatory drawing which shows the driving | running | working point in the case of performing the middle cutting operation.
The circles described in FIGS. 5 (a) and 5 (b) indicate planted cereals, and the symbol X in FIG. 5 (a) indicates a stump.

  As shown in these figures, the distance D1 between the tips 22a and 23a of the first outer weeding tool 22 and the first middle weeding tool 23 can introduce a single set of planted cereals in the case of swiveling work, In the case of middle cutting work, the spacing is such that two rows of planted cereal can be introduced. The distance D3 between the tips 25a and 24a of the second outer weed tool 25 and the second middle weed tool 24, and the distance D2 between the tips 23a and 24a of the first middle weed tool 23 and the second middle weed tool 24. The intervals are large enough to introduce a single set of planted cereals both in the case of turning and middle cutting.

  As shown in FIG. 3, the cutting device 29 includes a weeding tool support rod 21b located at one end of the four weeding tool support rods 21b and 21c in the lateral direction of the traveling machine body, and the other end. The cutting working area of the reaping device 29 is substantially equal to the distance D7 between the tips 22a and 25a of the first outer weeding tool 22 and the second outer weeding tool 25. It is a cutting area of size.

  As shown in FIGS. 1, 2, and 3, each pulling device 26, 27, 28 includes a pulling case 26 a, 27 a, 28 a supported by the preprocessing unit frame 21, and the pulling case 26 a, 27 a, An endless rotation type raising chain 31 provided inside 28a is provided. The raising cases 26a, 27a, 28a of the raising devices 26, 27, 28 are supported in an inclined posture in which the upper end side is located slightly on the rear side of the traveling machine body from the lower end side.

  The pull-up chain 31 is drivably positioned on the lower end side of the pulling cases 26a, 27a, 28a and the ring body 32 that is drivably positioned on the upper end side of the pulling cases 26a, 27a, 28a. It is wound around the ring body 33 and driven by the upper ring body 32 to raise and move up one end side of the traveling machine body in the lateral direction of the cases 26a, 27a, 28a, and raise the cases 26a, 27a, 28a. The other end side of the traveling machine body in the lateral direction is moved downward.

  The pull-up chain 31 includes pull-up claws 34 attached at predetermined intervals in the longitudinal direction thereof. Each raising claw 34 is raised when the raising chain 31 is raised and moves up one end side in the lateral direction of the traveling body of the cases 26a, 27a, 28a, and the leading end side of the raising claw 34 is raised to raise the case 26a, 27a, 28a. It moves upward as a mounting posture projecting sideways from the traveling machine body, causing it to act on the planted cereal.

The three raising devices 26, 27, 28 are arranged as shown in FIGS.
That is, of the three pulling devices 26, 27, and 28, the first external pulling device 26 located at the end on the side where the first external weeding tool 22 is positioned is the pulling of the first external pulling device 26. A distance D4 in the lateral direction of the traveling machine body between the center 26b in the lateral direction of the traveling machine body of the case 26a and the tip 22a of the first outer weed tool 22 and a lateral side of the traveling machine body of the raising case 26a of the first external raising device 26. The distance D5 in the lateral direction of the traveling machine body between the center 26b in the direction and the tip 23a of the first middle weed tool 23 is the same.

  The first outer raising device 26 raises the raising claw 34 and protrudes from the case 26a toward the side where the middle raising device 27 located in the middle of the three raising devices 26, 27, 28 is located. The raising case 26a of the first outer raising device 26 and the raising guide 35 provided along the side opposite to the raising side of the raising case 27a in the middle raising device 27 are moved upward. The raised nail 34 causes the planted cereals from the first outer weed tool 22 and the first middle weed tool 23 to be raised.

  Of the three pulling devices 26, 27, and 28, the second external pulling device 28 located at the end on the side where the second external weeding tool 25 is positioned is a pulling case 28 a in the second external pulling device 28. The center 28b of the traveling machine body in the lateral direction is positioned between the distal ends 25a and 24a of the second outer weed tool 25 and the second middle weed tool 24 in the traveling machine body lateral direction.

  The second outer raising device 28 raises the raising claw 34 and protrudes from the case 28a toward the side where the middle raising device 27 located in the middle of the three raising devices 26, 27, 28 is located. The second outside weeding tool 25 and the second middle weeding tool are caused by the raising claws 34 that move upward between the raising case 28a of the second raising device 28 and the raising case 27a of the middle raising device 27. Invoke planted cereal from 24.

  The middle lifting device 27 located in the middle of the three lifting devices 26, 27, and 28 has a center 27 b in the lateral direction of the traveling body of the lifting case 27 a of the middle lifting device 27, and the second middle weed. It arrange | positions between the tool 24 and the front-end | tips 24a of the 1st middle part weed tool 23, 23a and the position located between the running body horizontal direction.

  The intermediate raising device 27 raises the raising claw 34 so as to protrude from the case 27a toward the side where the second external device 28 is located, and causes the second raising case 27a of the intermediate raising device 27 to be raised. The raised claw 34 that rises and moves between the raising case 28a of the device 28 raises the planted cereals from the first middle weed tool 23 and the second middle weed tool 24.

  As shown in FIG. 3, the conveying device 30 has a conveying start end located behind the first outer pulling device 26 and above the reaping device 29, and a conveying terminal end of the conveying start end of the threshing feed chain 2 a. The first transfer device 30a located near the front, the second outer pulling device 28 and the middle pulling device 27 are located behind the reaping device 29 behind the second pulling device 28 and the first pulling device 29. And a second transfer device 30b connected in the middle of 30a.

  The conveying device 30 conveys the harvested cereal that has been raised and processed by the first outer raising device 26 and also cut by the reaping device 29 by the first conveying device 30a, and supplies the threshing feed chain 2a. The conveying device 30 causes the harvested cereals that have been raised and processed by the second outer raising device 28 and the intermediate raising device 27 and also mowed by the reaping device 29 to the first conveying device 30a by the second conveying device 30b. It conveys to the threshing feed chain 2a by conveying on the way and making it merge with the harvested grain trough which the 1st conveying apparatus 30a conveyed from the conveyance start end part.

As shown in FIGS. 2 and 3, the distance D6 between the outer ends of the crawler belt 16 of the pair of left and right crawler traveling devices 10a and 10b in the lateral direction of the traveling machine body is defined as the first outer weeding tool 22 and the second outer weeding. It is set to be slightly larger than the distance D7 between the tips 22a, 25a of the tool 25.
Therefore, even in the case of performing cutting and traveling in any form of the rotating mowing work and the middle cutting work, the crawler traveling devices 10a and 10b are grounded to the traveling place over a wide range in the lateral direction of the traveling machine body, thereby stably. The mowing operation can be performed while running.

That is, in the case of the turn mowing work, the cutting travel is performed in the travel procedure shown in FIG. The circles shown in FIG. 5 (a) indicate planted cereals, and the X shown in FIG. 5 (a) indicates a stump.
That is, in the state where the first outer weeding tool 22 is located in the already cut area C, three strips are planted in front of the first outer weeding tool 22 and the tips 22a and 25a of the second outer weeding tool 25. The traveling machine body is caused to travel while aligning the pre-cutting processing unit 20 with the planted cereal so that the cereal is located.
Then, between the first outer weed tool 22 and the tips 22a, 23a of the first middle weed tool 23, between the first middle weed tool 23 and the tips 23a, 24a of the second middle weed tool 24, One set of planted cereals can be introduced between the tips 25a and 24a of the second outer weed tool 25 and the second middle weed tool 24.
A planted cereal to be introduced between the second outer weed tool 25 and the second middle weed 24, and a planted cereal which is located in the uncut area A in a state adjacent to the planted cereal The second outside weeding tool 25 is positioned in between, and the second outside weeding tool 25 can weed the planted cereal into a planted cereal that is to be harvested and a planted cereal that is not to be harvested, Cutting and running can be carried out in the form of rotating mowing while cutting Sanjo's planted cereals.

  In this cutting traveling, the position of the tip 25a of the second outer weed tool 25 and the position of the outer end 16a of the crawler belt 16 in the crawler traveling device 10a on the side of the traveling machine body where the second outer weed tool 25 is located. Are consistent in the lateral direction of the traveling machine body, it is easy to ensure the distance between the planted cereals of the uncut area A and the crawler belt 16 located on the lateral outer side of the second outer weeding tool 25, Cutting and traveling can be performed while avoiding stepping by the crawler belt 16 of the planted cereal of the cutting area A.

When performing the middle cutting operation, the cutting operation is performed according to the traveling procedure shown in FIG. A circle in FIG. 5B indicates a planted cereal.
That is, in a state where the uncut area B is located on the lateral outer side of the first outer weed tool 22 and the uncut area A is located on the lateral outer side of the second outer weed tool 25, The traveling machine body is caused to travel while aligning the pre-cutting processing unit 20 with the planted cereal so that the four rows of planted cereal are located in front of the tips 22a, 25a of the second outer weeding tool 25.
Then, it is possible to introduce two rows of planted cereals between the tips 22a and 23a of the first outer weed tool 22 and the first middle weed tool 23, and the first middle weed tool 23 and the second middle weed tool 23 A single set of planted culm can be introduced between the tips 23a and 24a of the weeding tool 24 and between the second outer weeding tool 25 and the tips 25a and 24a of the second middle weeding tool 24. .
A planted cereal to be introduced between the first outer weed 22 and the first middle weed 23, and a planted cereal which is located in an uncut region B in a state adjacent to the planted sorghum The first outer weed tool 22 is positioned in between, and the first outer weed tool 22 divides the planted cereal into a planted cereal to be harvested and a planted cereal to be harvested. it can. A planted cereal to be introduced between the second outer weed tool 25 and the second middle weed 24, and a planted cereal which is located in the uncut area A in a state adjacent to the planted cereal The second outside weeding tool 25 is positioned between them, and the second outside weeding tool 25 can divide the planted cereal into a planted cereal that is to be harvested and a planted cereal that is not to be harvested. Thus, the cutting and traveling can be performed in the middle-cutting mode while cutting the Shijo planted cereals.

  In this cutting and traveling, the position of the tip 22a of the first outer weed tool 22 and the position of the outer end 16a of the crawler belt 16 in the crawler traveling device 10b on the right side substantially coincide with each other in the lateral direction of the traveling body, and the second outer Since the position of the tip 25a of the weeding tool 25 and the position of the outer end 16a of the crawler belt 16 in the crawler traveling device 10a on the left side coincide with each other in the lateral direction of the traveling machine body, The distance between the planted cereal of the uncut area B located on the outside and the crawler belt 16 in the crawler traveling device 10b on the right side is also the planted grain of the uncut area A located on the laterally outer side of the second outer weed tool 25. It is easy to ensure the distance between the crawler and the crawler belt 16 in the crawler traveling device 10a on the left side, and cutting while avoiding the stepping by the crawler belt 16 of both the uncut areas A and B Ri can travel.

  Regardless of whether cutting is performed in any form of the rotary cutting operation or the middle cutting operation, the distance D6 between the outer ends 16a of the crawler belt 16 of the pair of left and right crawler traveling devices 10a, 10b is the first outer weeding tool 22. And a distance D7 between the tips 22a and 25a of the second outer weed tool 25, the pair of left and right crawler traveling devices 10a and 10b are grounded over a wide range in the lateral direction of the traveling machine body at the traveling location. To make the traveling aircraft run stably.

  Even in the case of performing the cutting and traveling in any form of the rotation cutting operation and the middle cutting operation, the center 26b of the raising case 26a in the first outer raising device 26 in the lateral direction of the traveling machine body and the first outer weeding tool 22 The distance D4 in the lateral direction of the traveling machine body from the tip 22a, the traveling machine body between the center 26b in the lateral direction of the traveling machine body of the raising case 26a in the first external pulling device 26 and the tip 23a of the first middle weed tool 23. Since the distance D5 in the lateral direction is the same, the first external raising device 26 raises and raises the claw 34 and moves it along the guide 35 with high precision, and the planted cereals are raised and the claw 34 is raised. The pulling process is performed while it is difficult for the pulling guide 35 to slip through the pulling guide 35.

[Second Embodiment]
FIG. 6 shows a grounding wheel 14 suitable for a combine in which the operation unit 5 includes a cabin (not shown). As in the first embodiment, the grounding wheel 14 is configured by connecting an outer ring 41 on the outer side of the traveling machine body and an inner ring 42 on the inner side of the traveling machine body concentrically with a rotation shaft 43.

  The outer ring 41 is configured by integrally providing a cylindrical member 48 a on the outer periphery of the disk-shaped member 49 a, and the inner ring 42 is formed in a disk shape that is thicker than the thickness of the disk-shaped member 49 a in the outer ring 41. That is, the inner ring 42 does not include a cylindrical member.

  The outer peripheral surface of the cylindrical member 48 a is formed on a facing surface 50 a that faces the inner peripheral surface of the crawler belt 16, and the outer peripheral surface of the disk-shaped inner ring 42 is formed on a facing surface 50 b that faces the inner peripheral surface of the crawler belt 16. The width E1 of the outer ring 41 along the belt width direction of the facing surface 50a is formed wider than the width E2 of the facing surface 50b of the inner ring 42 along the belt width direction.

In the present embodiment, since the inner ring 42 is formed in a disk shape thicker than the thickness of the disk-like member 49a in the outer ring 41, the weight of the disk-shaped inner ring 42, which is easier to simplify the structure than the outer ring 41, is efficient. It increases well and lowers the position of the center of gravity of the combine, and even a combine with a cabin that tends to increase the position of the center of gravity can be driven stably.
Other configurations are the same as those of the first embodiment.

[Third Embodiment]
FIG. 7 shows another embodiment of the support structure of the grounding wheel 14, and among the six grounding wheels 14, the four grounding wheels 14 a on the front side of the machine body include two adjacent grounding wheels 14 a. As a set, two grounding wheels 14b on the rear side of the machine body are rotatably supported by a swing bracket 19 that is swingably provided on the track frame 12, and a fixed shaft provided on the track frame 12. It is supported rotatably around the core.
Other configurations are the same as those of the first embodiment.

[Fourth Embodiment]
FIG. 8 shows another embodiment of the support structure of the grounding wheel 14. Of the six grounding wheels 14, two grounding wheels 14 a on the front side of the machine body are provided swingably on the track frame 12. A swinging arm 19a (spring (not shown)) is rotatably supported by a swinging bracket 19, and a fourth grounding wheel 14 from the front side of the machine body is swingably provided on the track frame 12. The remaining three grounding wheels 14 are rotatably supported around a fixed axis provided on the track frame 12.
Other configurations are the same as those of the first embodiment.

[Another embodiment]
Of the four weeding tools, the distance between the weeding tool located at the end on the driving unit side and the tip of the weeding tool located next to the weeding tool is located at the end opposite to the driving unit side. Instead of setting the spacing between the cutting tool and the tip of the weeding tool located adjacent to it, the weeding tool located at the end of the four weeding tools on the side opposite to the driving side. And the distance between the tips of the weeding tools located adjacent to this is set to be larger than the distance between the weeding tool located at the end of the driving section and the tips of the weeding tools located next to it. However, in the case of the middle cutting operation, it may be carried out by adopting a configuration that enables the cutting of the four rows of planted stems. Also in this case, the object of the present invention can be achieved.

  The present invention can also be used in a combine that employs a pulling device that is configured to protrude from the case toward the side where the first external pulling device is located as the middle pulling device.

DESCRIPTION OF SYMBOLS 10a, 10b Crawler traveling apparatus 14 Ground roller 16 Crawler belt 16a Outer end of crawler belt 20 Cutting pretreatment part 22 First outer weed tool 22a First outer weed tool tip 23 First middle weed tool 23a First Front end of middle weed tool 24 Second middle weed tool 24a Front end of second middle weed tool 25 Second outer weed tool 25a Front end of second outer weed tool 41 Outer ring 42 Inner ring 46 Protrusion 47 Core metal 48a Cylindrical shape Member 48b Cylindrical member 49a Disk-like member 49b Disk-like member 50a Opposing surface 50b Opposing surface C2 Center position in the belt width direction D1 Distance between the first outer weed tool and the tip of the first middle weed tool D2 First middle part The distance between the tips of the grass tool and the second middle weed tool D3 The distance between the tips of the second outer weed tool and the second middle grass tool E1 Width of the facing surface E2 Width of the facing surface

Claims (4)

A combine including a traveling machine body having a pair of left and right crawler traveling devices, and a pre-cutting processing unit including four weeding tools arranged in the lateral direction of the traveling machine body is coupled to the front part of the traveling machine body,
A first outer weeding tool located at the end of one of the four weeding tools in the lateral direction of the traveling body and a first middle weeding tool located adjacent to the first outer weeding tool. A distance between the tips is set such that the second outer weeding tool located at the extreme end of the other of the four weeding tools in the lateral direction of the traveling body and the second outer weeding tool located adjacent to the second outer weeding tool. Set the interval between the tips of the mid-divided tools, and larger than the interval between the tips of the first and second divided-plotted tools,
The position of the tip of the first outer weed tool and the crawler belt in the crawler traveling device located on the lateral end side of the traveling machine body on the side where the first outer weed tool is located among the pair of left and right crawler traveling devices. The position of the outer edge in the lateral direction of the traveling machine body coincides or substantially coincides with the lateral direction of the traveling machine body,
The position of the tip of the second outer weed tool and the crawler belt in the crawler traveling device located on the lateral end side of the traveling machine body on the side where the second outer weed tool is located among the pair of left and right crawler traveling devices. The position of the outer edge in the lateral direction of the traveling machine body coincides or substantially coincides with the lateral direction of the traveling machine body,
Each of the crawler traveling devices includes a crawler belt in which a metal core having a protrusion protruding toward the inner peripheral side of the belt is embedded at predetermined intervals along the belt longitudinal direction, and the crawler belt so as to engage with the protrusion. And a grounding wheel wound with
A combine in which the core metal and the grounding wheel are provided at a position offset from the center position in the belt width direction of the crawler belt toward the outer side of the traveling machine body. The grounding wheel is configured by concentrically connecting an outer ring on the outer side of the traveling machine body and an inner ring on the inner side of the traveling machine body,
The protrusion is engaged between the outer ring and the inner ring,
The width along the belt width direction of the facing surface of the outer ring facing the inner peripheral surface of the crawler belt is formed wider than the width along the belt width direction of the facing surface of the inner ring. Combine. Each of the outer ring and the inner ring is configured by integrally providing a cylindrical member that forms the facing surface on the outer peripheral portion of the disk-shaped member,
The combine according to claim 2, wherein a thickness of the disk-shaped member in the outer ring is larger than a thickness of the disk-shaped member in the inner ring. The outer ring is configured by integrally providing a cylindrical member forming the facing surface on the outer peripheral portion of the disk-shaped member,
The combine according to claim 2, wherein the inner ring is formed in a disk shape thicker than a thickness of the disk-shaped member in the outer ring.

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