JP2019092476A - Reaping device of combine - Google Patents

Abstract

To solve the problems that in the case of introducing two-row grain culms in a two-row combine by expanding a grass-dividing tool at an already reaped field side to the outside and widening a little a width between a grass-dividing support frame at an already reaped field side and a central grass-dividing support frame, excessive grass-dividing resistance is added to the central grass-dividing support frame so as to affect reaping properties.SOLUTION: A reaping device of a combine, formed in a bent form is such that: a central grass-dividing support frame (20C) for supporting a grass-dividing tool (11C) has the front side positioned at an already reaped field side, and a rear side positioned at an un-reaped field side as becoming close to a reaping blade side, to a center of a tip locus of left and right raising lugs (12,12) in a plane view.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a combine harvester.

  Conventionally, the center separating support frame in the combine reaper is formed in a straight line parallel to the center of the left and right raised lug tip trajectory in plan view (see, for example, Patent Document 1).

JP, 2012-200238, A

  In the above-mentioned conventional configuration, for example, in the combine of two-row cutting, the pre-harvested side branching tool is spread outward to form the pre-cut-side branching herb support frame and the center pre-harvesting support frame. In the case of introducing two rows of grain weirs by slightly widening the width of weeds, there was a problem that excessive weeding resistance was added to the center weed supporting frame, which in turn affected the harvesting performance.

  The present invention reduces the grass resistance and improves the harvesting performance by bending the center branching support frame shape so that the distance between the center and the branching support frame on the side of the harvested area becomes wider on the cutting blade side. The aim is to

  The present invention takes the following technical measures in order to solve the above problems.

  That is, according to the invention as set forth in claim 1, the center herb supporting frame (20C) for supporting the wedging tool (11C) is relative to the center of the tip lag of the left and right raising lugs (12, 12) in plan view. The front side is located on the side of the reaping area, and the reaping device is a bend-formed combine harvester located on the side of the unremoving area closer to the rear side closer to the cutting blade.

  According to the second aspect of the invention, the front part and the rear part of the bending support frame (20C) are formed in a straight line in plan view with respect to the front part and the rear part of the bending part (21) formed in the middle part. It is set as the reaper of the combine according to Claim 1.

  In the invention according to claim 3, the rear end portion of the center herb supporting frame (20C) is not cut compared with the junction of the left and right scratching belts (15) or the left and right scratching star wheels (16). It is set as the reaper of the combine of Claim 1 or Claim 2 arrange | positioned at the side.

  In the invention according to claim 4, the central branch support frame (20C) is formed to be longer in linear shape than the branch support frames (20L, 20R) on the left and right in a side view. It is set as the reaper of the combine of Claim 2 or Claim 3.

  The invention according to claim 5 is characterized in that the central branch support frame (20C) has a straight portion connecting the front side and the rear side in a side view parallel to the cutting blade (14). It is set as the reaper of the combine of Claim 1 or Claim 2 or Claim 3 or Claim 4 formed.

  According to the invention as set forth in claim 1, even if two rows of grain weirs are introduced, the center of the center so that the distance between the branch support frame on the cropping side and the center branch support frame becomes wider toward the cutting edge. Since the branching support frame is bent near the cutting blade, the branching resistance is reduced, and the grain can be prevented from being pushed down, and the cutting performance can be significantly improved.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, the front side portion and the rear side portion of the bent portion formed in the front-rear direction middle portion of the center side branch support frame are Since it is formed in a straight line in a plan view, the grain crucible to be branched is introduced and guided smoothly in the branching width and smoothly transported to the rear even after cutting by the cutting blade.

  According to the invention of claim 3, in addition to the effect of the invention of claim 1 or claim 2, the rear end portion of the center herb supporting frame is the left and right scratching belts or the left and right scratching star foils Because it is arranged closer to the unharvested area than the confluence area of the area, even when two grain weirs are introduced within the divided weed width on the already It will be.

  According to the invention of claim 4, in addition to the effect of the invention of claim 1 or claim 2 or claim 3, the center branch support frame is more straight than the left and right branch support frames in side view. Since the portion of the shape is formed to be long, the contact area of the center herb supporting frame is increased, and the penetration into the flooding scene is reduced.

  According to the invention of claim 5, in addition to the effect of the invention according to claim 1 or claim 2 or claim 3 or claim 4, the rectilinearly shaped portion in a side view of the center side branch support frame is a cutting blade And the cutting blade can be provided with a gap at a fixed distance between the herb-supporting frame and the cutting blade, which makes it possible to discharge mud, scraps and the like better, and improve maintenance.

Side view of combine Top view of combine Top view of the main part of the reaper Top view of the same main part Top view of the same main part Side view of the main part of the reaper Side view of the main part of the reaper

  An embodiment according to the combine reaper of the present invention will be described based on the drawings.

  1 and 2 show a side view and a plan view of the combine, and on the traveling vehicle body 1 provided with a pair of traveling crawlers 2 on the left and right sides, a threshing device (threshing portion) 3 at the rear, and its front portion The reaper 4 is installed on the A driver's seat 5, a front operation box 6 on the front side of the driver's seat, a side operation box 7 on the left side of the driver's seat, and the like are provided on the lateral side of the reaper 4; Is equipped with a gren tank 8 for temporarily storing threshing grains. The grain in the gren tank 8 is discharged out of the machine by the discharge auger 9.

  In the front operation box 6, a power steering lever 10 or the like is provided which steers and controls the traveling direction of the machine by the operation in the left and right direction and lifts and lowers the reaper 4 by the operation in the front and back direction.

  The reaper 4 has left and right with left and right branching tools 11L and 11R for centering the growing grain and left and right middle rugs 11C with a raising lug 12 for raising the growing grain. A pair of grain raising devices 13L, 13R, a hair clipper type cutting edge device 14 for cutting off the grain after raising, scraping belt 15 for scraping and conveying the grain after cutting, scraped star foil 16 and the like It is composed of a scraping transport device, a lifting transport device (transporting and feeding device for threshing depth adjustment) 18 that transports and transports the grain crucible after scraping transport to the threshing part 3 and raises and lowers the vehicle body up and down. Equipped with possible.

  A narrow guide 19 is provided on the uncut side lateral side of the reaper 4 so as to be switchable between a branching action posture that projects outward and a storage posture that is stored on the machine side.

  The right-hand side (pre-harvest side) of the weeding implement 11R is pivoted about the vertical axis in the vertical direction provided in the middle of the branching support frame 20R so that the tip side pivots toward the left inner side or right outer side It is freely pivoted and can be operated manually from the driving position.

  And when performing normal two-row mowing work, the right-hand side dividing tool 11R is in the closed position state, and one grain of each grain is placed between the left and right side dividing tools 11L and 11R and the middle-branching tool 11C. A gutter has been introduced, and two rows of grain gutters have been drafted on the side of the cutting blade.

  In addition, when the right branching tool 11R is opened outward, two rows of cereals are introduced between the middle branching tool 11C and the right branching tool 11R, and the middle branching tool 11C and the left branching tool Three grains of rice husk are to be introduced in combination with one grain of rice husk to be introduced between 11L.

  Therefore, the width of the pre-harvested area is set so as to be slightly larger than the width of the un-cut area.

  The grass supporting frame 20C for supporting the middle middle weeding implement 11C is located forward of the center of the tip trajectory of the left and right raising lugs 12 and 12 in plan view and is located on the side of the cropland and is the rear cutting blade 14 side The bending inclination part 21 is provided so that it may bend and incline toward the unharvested ground side. That is, it is set as the composition of D1 <D2 so that it may become the parting width D2 so that the usual parting width D1 by the side of a cutting ground is closer to the cutting blade 14.

  Further, the front and rear end sides of the bending inclined portion 21 are formed in a linear shape parallel to the front and rear direction in plan view. Moreover, the linear shape is configured to be parallel in the vertical direction.

  The rear end portion of the herbage support frame 20C is connected to the transmission box 22 in the lateral direction along the rear side of the cutting blade device 14 in the same manner as the right and left weed frames.

  The rear end of the support frame 20C is straight in the front-rear direction, but is set at a position closer to the unharmed ground than the junction of the left and right scratching belts 15 and the left and right scratching star foils 16. ing. According to this, since two rows of cereal gravels may be introduced on the already harvested area side, the transportation route is secured, the flow of cereal gravels is good, and handover can be smoothly performed.

  As shown in FIG. 6, the center branching support frame 20 </ b> C is configured to be longer than the straight line-shaped parts B of the left and right branch support frames in the side view, thereby increasing the floating effect. In addition, by forming the rectilinear portion A in a side view of the herb support frame 20C in parallel with the cutting blade 14 (see FIG. 7), a gap of a certain distance is provided between the herb supporting frame and the cutting blade. It can be secured, it is easy to discharge the mud and scraps, and maintenance is improved.

  A center separation support frame 20C is disposed closer to the uncarriage side than the mounting surface of the vertically movable mower support frame 23 for mounting the reaper transmission shaft to the reaper 4 with respect to the lateral transmission box 22.

  The grass supporting frame 20C is mounted on the cutting blade device 14, but is mounted so as to avoid the upper side of the blade pushing tool 24 that holds the nearby cutting blade.

4 reaper part 11L left branching tool (unharvested land side)
11 R right handed grass tool (pre-harvest side)
11C Medium dividing herb 12 raising lug 13 raising device 14 cutting blade device 15 scratching belt 16 scratching star wheel 20 L left branch supporting frame 20 R right branch supporting frame 20 C central branch supporting frame 21 bending inclined portion

Claims (5)

  The center side of the grass supporting frame (20C) for supporting the wedging tool (11C) is on the side of the remnant area with respect to the center of the tip of the left and right raising lugs (12, 12) in plan view. A bent-shaped combine harvester that is positioned and located closer to the unharvested side toward the rear side closer to the cutting blade.   The combine according to claim 1, wherein a portion on the front side and a portion on the rear side of the bending portion (21) formed in the longitudinal middle portion of the branching support frame (20C) are formed in a straight line in plan view. Harvester.   The rear end portion of the center branch support frame (20C) is disposed closer to the unharvested side than the junction of the left and right scratching belts (15) or the left and right scratching star wheels (16). Or the reaper of the combine according to claim 2.   The said center branching support frame (20C) was formed in the linear-shaped part longer than the branch support frame (20L, 20R) on either side in a side view. Combine harvester. The formed central branch support frame (20C) is characterized in that a straight portion connecting the front side and the rear side in a side view is formed parallel to the cutting blade (14) The reaper of the combine according to claim 2 or claim 3 or claim 4.

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