JP2011244793A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grass-dividing device well dividing grain stalks on the reaping work of a combine harvester without leaving unreaped grain stalks and without overriding the grain stalks with a crawler.SOLUTION: In the combine harvester, an auxiliary grass-dividing guide (14) ranging from the tip end portion of a right-side grass divider (7a) to a position backward from the rear end of the right-side grass divider (7a), is provided on the front side of the right-side grass divider (7a) disposed on a grass-dividing frame (13) at the right-side end portion among the grass dividing frames (13) of a reaping device (3), the auxiliary grass-dividing guide (14) has a front end pivoted at a tip end portion of the right-side grass divider (7a), and a rear end portion pivoted on the lower side of the rear end portion of the rear end portion of the right-side grass divider (7a), and the grass-dividing terminal end portion of the auxiliary grass-dividing guide (14) is formed to be freely switched between a position placed on the outside of a machine frame relative to the right end of the reaping device (3) and a position placed on the grain stalk pick-up route side of a right-side end pick-up device (8) arranged in back of the right-side grass divider (7a) relative to the left end portion of the right-side grass divider (7a).

Description

  The present invention relates to a combine.

  Conventionally, a combine attaches a weeding body to the tip of a cutting part in front of the machine body, and separates it into an uncut grain culm group in the field to perform cutting work while weeding. At this time, a so-called turning-cutting operation is generally performed in which the field is cut and driven in the counterclockwise direction from the edge toward the center. In this work, the left side of the machine is facing the uncut grain cocoon, but in general, the combine is constructed by moving the harvesting device to the left side of the machine, so There is no trampling.

  In order to efficiently perform the cutting operation, in the middle splitting operation so as to pass through the group of uncut grain pods, the uncut grain pods are positioned on both the left and right sides of the machine body. Accordingly, as exemplified in Patent Document 1 below, in a small combine, the right side weed body at the right end is switched to the right side of the body, and the tip of the right side weed body is positioned on the right side of the right end of the traveling device. A technique for performing a cutting operation is known.

  Patent Document 2 discloses a technique in which an auxiliary weeding guide is provided above the front side of the right weeding body so that the operator can easily confirm the tip of the weeding body.

JP 2006-158332 A JP 2004-154097 A

  However, in the conventional technique as described in the above-mentioned patent document, the tip of the cereals enters between the weeding surface of the right side weed body and the upper end of the auxiliary guide body, Moreover, there was a problem that the cutting and conveying could not be performed smoothly, and the tip of the cereal was cut off, resulting in a loss of harvest, and the efficiency of the cutting operation was reduced. In addition, since the auxiliary weed guide has a uniformly larger slope than that of the right weed body, there is a problem that cereals are caught on the base of the auxiliary weed guide and shed.

In order to solve the above-mentioned problems, the present invention takes the following technical means.
That is, the invention described in claim 1 is provided with a cutting device (3) on the front side of the traveling device (2), and the cutting device (3) includes a weed body (7) for weeding the planted cereals, A plurality of pulling devices (8) for raising the weed cereals and a cutting blade device (30) for harvesting the raised cereals and driving the pulling device (8) and the cutting blade device (30) A plurality of weeding frames (13) are extended forward from the lower transmission frame (12) side that transmits force in the left-right direction at intervals, and a weeding body ( 7) In a combine equipped with a rearwardly inclined posture, the right side weed body (7a) provided on the weed frame (13) at the right end of the plurality of weed frames (13) Auxiliary weeding guide extending from the tip of the weeding body (7a) to the rear side of the rear end of the right weeding body (7a) ( 4), and the auxiliary weed guide (14) is pivotally supported at the front end of the right weed body (7a), and the rear end of the auxiliary weed guide (14) on the lower surface side of the rear end portion of the right weed body (7a). The auxiliary weeding guide (14) has a weeding action end portion located outside the right end of the cutting device (3) and a left end portion of the right weeding body (7a). Also, the combine is characterized in that it is configured to be switchable to the position on the grain raising path side of the pulling device (8) at the right end located on the rear side of the right weed body (7a).

  According to a second aspect of the present invention, the auxiliary weeding guide (14) includes a gentle inclined portion (14a) along the inclined surface of the right side weed body (7a) at a front end portion thereof, and the right side portion is provided at an intermediate portion thereof. A herbicidal action part (14b) that is steeply inclined upward from the grass body (7a) is provided, and the rear end part of the weeding action part (14b) is located on the outer side of the machine body from the right end of the cutting device (3). The position is switched from the left end portion of the right side weed body (7a) to the position on the grain raising path side of the pulling device (8) at the right end portion arranged on the rear side of the right weed body (7a). The combine according to claim 1, wherein the combine is freely configured.

  According to the first aspect of the present invention, the cereal can be guided without being caught between the right side weed body (7a) and the auxiliary weeding body guide (14), so that it is possible to reduce the harvest loss due to the cutting edge of the cereal. The harvesting efficiency in the cutting operation can be increased.

  On the other hand, when the auxiliary weeding guide (14) is tilted and adjusted to the right side of the machine, the uncut wheat straw does not interfere with the reaping device (3), so that the mid-split operation can be performed satisfactorily. When the tilt adjustment of 14) is adjusted to the left side, the weed cereal straw can be smoothly transferred to the pulling device (8), so that the efficiency of the cutting operation can be improved.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the cereal is supported from the right weed body (7a) through the gentle slope part (14a) to the weed action part (14b). Therefore, there is no problem of handling the slimming at the base of the auxiliary weeding guide (14) and causing the grain to fall, and the harvesting efficiency in the cutting operation can be increased.

Combine side view Combine front view Right side view of the cutting part Side view showing the main part of the cutting part Plan view showing the main part of the mowing part Side view of right weed Rear view of right weed The top view which shows the principal part of the cutting part of another Example

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a front view of a combine, which includes a reaping device 3 for cutting cereals in front of a body frame 1 on a pair of left and right crawler type traveling devices 2, and a threshing device 4 on the left side of the body frame behind it. With an operation seat 6 and a Glen tank 5 on the right side.

  A shift operation tool 31 is provided on the left side of the operation seat 6, and a steering operation tool 32 is provided on the front side of the operation seat 6. The speed change operation tool 31 is connected to a speed change shaft (trunnion shaft) of a hydrostatic continuously variable transmission, and the output rotation speed of the continuously variable speed change device is changed by operating the speed change operation tool 31 before and after. Adjust. Further, the steering operation tool 32 is configured to be tiltable in the front-rear and left-right directions, and as described later, the height of the machine body of the reaping device can be adjusted by tilting back and forth. In the left and right tilting operation of the steering operation tool 32, the difference between the driving speeds of the left and right crawlers of the traveling device 2 is changed to turn and steer the aircraft.

  The reaping device 3 has a weeding body 7 that is positioned at the front end of the reaping device 3 and divides the planted cereals in rows, and a plurality of pulling devices 8 that cause the cerealed cereals to stand upright, A clipper-type cutting blade device 30 that cuts the root of the culm that has been raised and a lifting and conveying device 9 that sandwiches the sown culm and conveys it backward. The lifting and conveying device 9 is composed of a stock-side conveying device 9a made of an endless chain and a tip side conveying device 9b made of a number of resin lugs attached to the endless chain at equal intervals. By moving the start end side up and down, the takeover clamping position in the slimming direction of the cereal can be changed freely, and the length for inserting the tip into the threshing device 4 is adjusted. The harvested corn straw is taken over by the feed chain 27 from the end of the lifting and conveying apparatus 9 and is supplied to the threshing apparatus 4 with the slimming body in a horizontal posture and subjected to a degranulation process.

  A cutting support frame 10 that supports the cutting device 3 is pivotally supported at the front end of the machine body so as to be pivotable up and down about the machine body lateral axis A. A mowing lift cylinder 11 and a mowing support spring 33 are provided between the mowing support frame 10 and the body frame 1, and the mowing apparatus 3 is adjusted up and down by the expansion and contraction of the single-action mowing lift cylinder 11. The mowing support spring 33 is a compression spring provided to constantly urge the mowing device 3 upward. The mowing device 3 can be easily lifted and retracted when the mowing device 3 receives a pushing-up force from a field scene. Is made to follow the unevenness of the farm scene, to keep the stock uniform and to improve the harvesting efficiency. Although not shown, a ground support hook is provided at the lower portion of the reaping device 3.

  A cutting lower transmission frame 12 arranged in the left-right direction and a plurality of weeding frames 13 extending forward from the cutting lower transmission frame 12 are provided on the distal end side of the cutting support frame 10. A herbicidal body 7 located on the front side of the pulling device 8 is equipped at the tip. This weed body 7 has an inclined surface that rises backward as the width in the left-right direction increases toward the rear. In this way, the culm is erected while the whole body is being crushed, and the culm is taken over from the rear end of the inclined surface to the pulling device 8.

  Of the plurality of weed bodies 7, the right weed body 7 a at the right end of the machine body is connected by a switching mechanism 17 so as to be turnable in the left-right direction by a remote control lever 16 provided at the upper end of the pulling device 8.

Next, the rotation mechanism of the right weed body 7a will be described with reference to FIGS.
The right side weed body 7a, the front side weed frame 17a, and the back side weed frame 17b are attached to the tip of the rear side weed frame 17b fixed to the cutting lower transmission frame 12, and the front side weed frame 17a is attached to the tip of the rear side weed so as to be rotatable left and right. The front weed frame 17a and the right weed body 7a rotate integrally. The front weed frame 17a and the rear weed frame 17b are provided with U-shaped connecting members 18a and 18b at their respective ends so that the openings face each other toward the pivot point provided between them. .

  The connecting members 18a and 18b are connected by a connecting pin 19 so as to be rotatable in the vertical axis, and the front weed frame 17a is rotated left and right around the connecting pin 19. Then, the turning arm 20 provided integrally with the connecting member 18a protrudes on both sides from the turning center of the connecting member 18a, and an extension wire 21 constituting the switching mechanism 17 is provided at one end of the protruding portion with a tensioner spring. The front and rear ends of the return spring 23 are connected between the other end of the protruding portion and the rear weed frame 17b. An abutting member provided integrally with the connecting member 18b by screwing and attaching the overhanging side rotation restricting bolt 24a and the storage side turning restricting bolt 24b that are arranged in parallel to the connecting member 18b. The tip is brought into contact with 25. The contact member 25 includes a surface provided perpendicular to the rear weed frame 17b so that the right side weed body 7a is in contact with the overhanging side rotation restricting bolt 24a at a position that is the outermost side of the body, and a center of the body. It is formed in a bent shape having an inclined surface with which the storage side rotation restricting bolt 24b abuts at a position close to it. The overhang side rotation restricting bolt 24a and the storage side turn restricting bolt 24b are configured to be adjustable in length by a lock nut 26, and by adjusting the contact position with the contact member 25, the front weed frame 17a. The rotation range is adjustable.

  Thus, the right weed body 7a is provided with an auxiliary weed guide 14, and a gentle slope portion 14a at the front end of the auxiliary weed guide 14 is provided at the tip of the right weed body 7a. Attached so that it can rotate along the slope.

  The fixed portion 14c at the rear end is rotatably attached to the rear upper end of the right side weed body 7a and is on the non-working side, and the gentle slope portion is formed by the weed action portion 14b that is steeper than the right side weed body 7a. 14a and the fixing | fixed part 14c are connected. Insert the slow inclined portion 14a of the auxiliary weeding guide 14 thus configured from the rear into a hole formed in a rearwardly inclined posture of the front end support portion 7c provided to protrude from the upper side surface of the front end portion of the right weed body 7a. The fixed portion 14c is attached to the shaft, and is inserted into a hole in an upwardly inclined posture formed on the auxiliary weed guide guide 7b formed in an L shape in a side view on the back surface of the right weed body 7a on the same axis as the gently inclined portion 14a. And are attached by fastening via a leaf spring 15.

  With the above configuration, the auxiliary weeding guide 14 is pivotally supported by inserting the gently inclined portion 14a from the rear side along the right weeded body 7a, so that the guide of the cereals is not hindered, and the fixing portion 14c is placed on the right side. Since it attaches to the back surface which becomes the non-operation side of the weeding body 7a, it can prevent degranulation and accumulation of dust.

Since the fixing portion 14c is fastened and attached to the right weed body 7a via the leaf spring 15, the rotation position can be held by the elastic force of the leaf spring 15 and can be adjusted to an arbitrary position.
In the harvesting operation of the combine, a so-called turning mowing operation in which the field is harvested counterclockwise from the edge toward the center is common. In this work, the left side of the machine body faces the uncut grain cocoon, but in general, the combine is configured by bringing the mowing device 3 to the left side of the machine body, so that the uncut cereal meal machine is driven No stepping on by 2. In order to efficiently perform the cutting operation, in the middle splitting operation so as to pass through the group of uncut grain pods, the uncut grain pods are positioned on both the left and right sides of the machine body. Therefore, in a small combine, the right weed body 7a is biased to the right of the machine body, and the cutting operation is performed with the tip of the right weed body 7a positioned on the right side of the right end of the traveling device.

  At that time, when the auxiliary weeding guide 14 is tilted and adjusted to the right side of the machine body, the uncut wheat straw does not interfere with the reaping device 3, and the middle splitting work can be performed satisfactorily. In addition, since the rightmost end of the auxiliary weeding guide 14 is located on the inner side of the right side end of the machine body, it is possible to perform work without interfering with obstacles such as reeds and wall surfaces when cutting the reeds.

  When the auxiliary weeding guide 14 is positioned in the aircraft traveling direction, a larger angle than the right weeding body 7a can be obtained, and the working efficiency is improved by the reliable weeding action, and from the right weeding body 7a, Since the cereal is supported and guided to the weeding action part 14b through the gentle slope part 14a, there is no trouble such as handling the slimming at the base part of the auxiliary weeding guide 14, and the harvesting efficiency in the cutting operation is improved. Can be increased.

  When the auxiliary weed guide 14 is tilted and adjusted to the left side, the cereals are moved from the left end of the right side weed body 7a to the side of the grain raising path of the pulling device 8 at the right end located on the rear side of the right side weed body 7a. Therefore, it is possible to smoothly take over the cereals that have been weeded to the pulling device 8, so that the efficiency of the cutting operation can be improved.

Another embodiment will be described with reference to FIG.
A wire receiving portion 14d is provided on the fixed portion 14c of the auxiliary weed guide 14 at a position opposite to the rotating shaft with respect to the weed action portion 14b, and the rotating arm 20 and the auxiliary weed guide 14 are connected to each other. The interlocking wire 29 to be connected is attached, and the cable outer 29a is fixed to the back side of the pulling device 8 and the rear weed frame 17b.

  By rotating the turning arm 20 in the direction in which the front weed frame 17a is on the right side of the machine body, the interlocking wire 29 pulls the wire receiving portion 14d to the right side of the machine body, and the auxiliary weeding guide 14 is provided on the right weed body 7a. The tilt is adjusted to the left side.

  With this configuration, when the operator operates the remote control lever 16 from the operation seat 6, the right weed body 7a rotates to the right side of the aircraft, and the auxiliary weed guide 14 tilts to the left with respect to the right weed body 7a. Since the right weed body 7a and the auxiliary weed body 14 can be switched by a single operation by operating the remote control lever 16 at the time of the above-mentioned middle split operation, the cutting width is increased to perform the middle split operation. When the work is performed, the auxiliary weeding body 14 projects to the grain raising path side of the pulling device 8 at the right end, smoothly guiding the grains and improving the efficiency of the cutting operation.

DESCRIPTION OF SYMBOLS 2 Traveling device 3 Cutting device 7 Weeding body 7a Right side weeding body 8 Pulling device 12 Lower transmission frame 13 Weeding frame 14 Auxiliary weeding guide 14a Slowly inclined part 14b Weeding action part 30 Cutting blade apparatus

Claims (2)

A cutting device (3) is provided on the front side of the traveling device (2), and the cutting device (3) includes a weeding body (7) for weeding planted cereals and a plurality of parts for raising the weeded cereals. Lower transmission frame (12) that includes a pulling device (8) and a cutting blade device (30) that cuts the raised cedar and transmits a driving force to the pulling device (8) and the cutting blade device (30). From the side, a plurality of weeding frames (13) are extended forward in the left-right direction at intervals, and a weeding body (7) is provided at the front end of each weeding frame (13) in a tilted posture. In the combine,
A right weed body (7a) is provided on the front side of the right weed body (7a) provided on the weed frame (13) at the right end of the plurality of weed frames (13) from the tip of the right weed body (7a). 7a) Auxiliary weeding guide (14) extending rearward from the rear end is provided, and the auxiliary weeding guide (14) pivotally supports the front end of the right weeding body (7a) at the rear end. And the weeding end of the auxiliary weeding guide (14) is located on the outer side of the machine body from the right end of the cutting device (3). And a position that is on the grain raising path side of the pulling device (8) of the right end portion disposed on the rear side of the right weed body (7a) rather than the left end portion of the right weed body (7a). A combine that is configured to be switchable.   The auxiliary weeding guide (14) includes a gentle inclined part (14a) along the inclined surface of the right side weed body (7a) at the front end thereof, and the middle part thereof is raised rearward from the right side weed body (7a). And a position where the rear end of the weeding action part (14b) is located on the outer side of the body from the right end of the cutting device (3), and the right weeding body ( 7a) is configured to be switchable from the left end portion of the right side weed body (7a) to a position on the grain raising path side of the pulling device (8) of the right end portion arranged on the rear side of the right weed body (7a). The combine according to claim 1.

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