JP2013169169A - Post-processing device of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a post-processing device of a combine harvester that can more uniformly separate cut waste straws to right and left when the cut waste straws cut by a cutting unit and falling are separated by a horizonal diffusing spiral to right and left.SOLUTION: A post-processing device of a combine harvester includes a cutting unit 24 for cutting grain culm thrashed and made into waste straws. A horizontal diffusing spiral 26 for diffusing the cut straws cut by the cutting unit 24 is disposed below the cutting unit 24. A guide member 27 for receiving and guiding the cut straws falling from the cutting unit 24 so that the straws remain on the diffusing spiral 26 side is disposed below the diffusing spiral 26 with a space S secured between them. The guide member 27 is so formed that in the space S between the diffusing spiral 26 and the guide member 27, the guided side of the cut straw on the tip side is narrower than the guided side of the cut straw on the root side.

Description

  The present invention relates to a combine post-processing apparatus.

  A cutting part that cuts cereals that have been threshed and discharged is provided, and a lateral diffusion spiral that diffuses the cut material cut by the cutting part is disposed below the cutting part and falls from the cutting part. A combine post-processing apparatus shown in Patent Document 1 in which a guide member that receives a cut piece to be guided and stays on the diffusion spiral side with a gap formed on the lower side of the diffusion spiral is known. ing.

Japanese Patent No. 4847194

In the combine post-processing apparatus shown in the above document, the guide member acts to distribute the cut pieces of the cereal to the left and right, while the volume on the tip side of the cereal that has been rejected, Since the volumes are different, the cut object may fall to a predetermined position in the left-right direction in the left-right direction.
The present invention provides a combine that can distribute the cut pieces more evenly to the left and right when distributing the cut waste pieces that have been cut by the cutting portion to the left and right using the lateral diffusion spiral. It is an object to provide a processing apparatus.

  In order to solve the above-mentioned problem, first, a lateral diffusion spiral that includes a cutting unit 24 that cuts cereals that have been threshed and discharged, and that diffuses the cut material that has been cut by the cutting unit 24. 26 is disposed below the cutting portion 24, and a guide member 27 that receives the cut material falling from the cutting portion 24 and guides it to stay on the diffusion spiral 26 side is provided with a gap S below the diffusion spiral 26. In the combine post-processing apparatus arranged in an open state, the guide side of the tip-side cut product in the gap S between the diffusion spiral 26 and the guide member 27 is narrower than the guide side of the stock-side cut product. The guide member 27 is formed.

  Secondly, the guide member 27 includes a tip side guide surface 38 that is a guide surface of the tip side cut product, a stock source side guide surface 39 that is a guide surface of the stock side cut product, a tip side guide surface 38 and the stock. A connecting surface 41 that connects the original guide surface 39, and the stock guide side 39 is separated from the diffusion spiral 26 rather than the tip side guide surface 38 so that the two guide surfaces 38, 39 is formed in a lateral direction along the diffusion spiral 26, and the connecting surface 41 is inclined so as to gradually approach the diffusion spiral 26 from the stock side guide surface 39 toward the tip side guide surface 38. .

  Thirdly, an adjusting means for adjusting the inclination of the connecting surface 41 is provided.

  Since the guide side of the tip side cut material in the gap between the diffusion spiral and the guide member is narrower than the guide side of the stock side cut material, it is cut evenly across the entire width by the lateral diffusion spiral. Things diffuse and efficient processing takes place.

  The guide member includes a tip side guide surface that is a guide surface of the tip side cut product, a stock side side guide surface that is a guide surface of the stock side cut material, a tip side guide surface, and a stock side side guide surface. The two guide surfaces are formed laterally along the diffusion spiral so that the stock side guide surface is separated from the diffusion spiral rather than the tip side guide surface. The surface is inclined so as to gradually approach the diffusion spiral from the stock side guide surface toward the tip side guide surface, and according to what provided the adjusting means for adjusting the inclination of the connecting surface, by adjusting the inclination, Uniform diffusion can be applied to various cereals, improving versatility.

It is a side view of the self-removing combine to which the present invention is applied. It is a side view which shows the structure of the threshing apparatus and post-processing apparatus which were installed in the combine of FIG. It is a side view which shows the whole structure of a post-processing apparatus. It is a rear view which shows the whole structure of a post-processing apparatus. It is a lower surface side perspective view which shows the whole structure of a post-processing apparatus. It is a side view which shows the structure of another embodiment of a post-processing apparatus. It is a rear view which shows the structure of another embodiment of a post-processing apparatus. (A) is a perspective view which shows the structure of an adjustment means, (B) is a perspective view which shows the structure of the other example of an adjustment means.

  FIG. 1 is a side view of a self-removing combine to which the present invention is applied, and FIG. 2 is a side view showing configurations of a threshing apparatus and a post-processing apparatus installed in the combine of FIG. The combine is connected to the front side of the traveling machine body 2 so as to be able to be lifted up and down.

  The traveling machine body 2 is provided with a threshing device 6 on the left (left) half of the traveling direction on the machine frame 4 supported by the left and right crawler type traveling devices 3, 3, and the right side of the threshing device 6 on the machine frame 4. A grain tank 7 is arranged on the side, a post-processing device (cutter device) 8 is provided behind the grain tank 7 and the threshing device 6 on the body frame 4, and an operator is placed in front of the grain tank 7 on the body frame 4. Is installed in the cabin 9, and a control unit (not shown) is installed in the cabin 9. The left and right crawler type traveling devices 3, 3, the body frame 4, the threshing device 6, the Glen tank 7, The traveling machine body 2 is constituted by the post-processing device 8, the cabin 9, and the like.

  The threshing device 6 includes a handling chamber 12 in which a handling cylinder 11 formed into a cylindrical shape in the front-rear direction is supported so as to be rotatable around an axis, and a sorting chamber 13 below the handling chamber 12. A swing sorter 14 is supported on the upper portion of the sorting chamber 13 so as to be able to swing back and forth, and a tang fan 16 is installed below the front portion of the sorting chamber 13 for raising the sorting wind obliquely upward at the rear. On the upper rear side of the chamber 13, a dust exhaust fan 17 for raising the exhaust air obliquely below the rear is installed, and the first spiral 18 is provided at the rear of the Kara fan 16 and below the swinging sorter 14. A second spiral 19 is provided behind the first spiral 18 and below the swinging sorter 14.

  According to the combine of this structure, the culm that has been harvested by the pre-processing unit 1 and is conveyed rearward is delivered to the threshing feed chain 21 in the front-rear direction installed on the left side of the traveling machine body 2. The threshing feed chain 21 conveys the cereal rice cake in a state where the stock side is held and the tip side is inserted into the handling chamber 12. The cereals are threshed by the handling cylinder 11 in the handling chamber 12 in the backward conveyance process by the threshing feed chain 21 and become waste, and the processed material threshed by the handling cylinder 11 leaks the receiving net 22. And introduced into the sorting chamber 13.

  The processed material that has fallen into the sorting chamber 13 is slightly affected by the first thing falling to the spiral 18 side with little influence from the back-and-forth swing by the swinging sorter 14 and the sorting wind from the tang fan 16. It is sorted into a second thing that is received and dropped to the second spiral 19 side, and a waste such as sawdust blown to the dust exhaust fan 17 side under the influence. The first thing is transported into the grain tank 7 by the first spiral 18 and a not-shown crushed grain spiral, and is accommodated in the grain tank 7 as grains such as straw. The second product is returned to the upper part of the sorting chamber 13 or the handling chamber 12 by the second helix 19 and a reduced helix not shown. The discharged material is discharged from the rear end of the traveling machine body 2 by the discharged air.

  On the other hand, the cereal that has been rejected is conveyed rearward to the post-processing device 8 side by a waste transporting body such as a waste chain 23 in a lying state with the stock side facing left and the tip side facing right. . The waste conveyed to the post-processing device 8 side is discharged out of the apparatus as it is, or is discharged out of the apparatus after being cut.

Next, the configuration of the post-processing apparatus will be described with reference to FIGS.
3 to 5 are a side view, a rear view, and a bottom perspective view showing the overall configuration of the post-processing apparatus. The post-processing device 8 is arranged along a range from the front surface to the lower surface of the diffusion spiral 26, a cutting portion 24 that cuts the waste, a right and left diffusion spiral 26 disposed immediately below the cutting portion 24, and A plate-like left and right guide body (guide member) 27 inclined obliquely downward and rearward, a box-shaped post-processing case 28 in which a cutting portion 24 and a diffusion spiral 26 are provided and an upper side is formed open, and the post-processing And a switching plate 29 that opens and closes the upper open portion of the case 28.

  The switching plate 29 is supported on the rear edge side of the open end portion of the post-processing case 28 so as to rotate up and down with the rear end portion as a fulcrum. By this up and down rotation, the switching plate 29 falls forward. Thus, the position can be switched between a closed posture in which the upper side of the post-processing case 28 is closed and an open posture in which the upper side of the post-processing case 28 is opened by standing obliquely upward.

  The cutting section 24 includes a plurality of disc-shaped scribing blades 31 and cutting blades 32 arranged side by side in the left-right direction. Arranged to do so. The plurality of scribing blades 31 are pivotally supported by a left and right scoring shaft 33 that is inserted through the center of the scrambling blade 31 so as to be rotatable around the axis. A horizontal cutting shaft 34 inserted through the center of the blade 32 is pivotally supported around the shaft so as to be rotatable.

  The diffusion spiral 26 has a right and left diffusion shaft 36 rotatably supported between the left and right side walls of the post-processing case 28, a spiral shape along the outer periphery of the diffusion shaft 36, and the diffusion shaft 36. And a spiral plate 37 that rotates integrally. The spiral plate 37 is formed so that the left and right length per circumference of the diffusion shaft 36 is shorter on the side closer to the left and right ends than the center side in the left and right direction of the diffusion shaft 36. The diameter of 37 is the same or substantially the same over the entire axial direction of the diffusion shaft 36.

  According to the configuration as described above, by switching the switching plate 29 to the closed position, the waste from the waste chain 23 slides down the slope of the upper surface of the switching plate 29 of the post-processing device 8 and is cut as it is. Without being discharged.

  On the other hand, by switching the switching plate 29 to the open posture, the waste from the waste chain 23 is dropped and introduced into the post-processing case 28 in a state where it is lying down in the left-right direction. Incidentally, at this time, the lower surface side of the switching plate 29 acts so as to guide the cereal that has been rejected into the post-processing case 28. The left and right wastes dropped and supplied into the post-processing case 28 are cut while being scraped downward by a plurality of left and right scraping blades 31 and cutting blades 32, and are thus cut at a plurality of left and right positions. The processed cut pieces of cereal fall to the front side of the diffusion spiral 26, and are dropped and discharged outside the apparatus while being diffused evenly in the left-right direction by the diffusion spiral 26.

  During the diffusion operation of the cut object in the left-right direction by the diffusion spiral 26, the guide body 27 receives the dropping waste so that it stays on the diffusion spiral 26 side for a predetermined time. The action is assisted.

  More specifically, since the tip of the guide body 27 faces the right side and the stockholder faces the left side, the excavation in the lying state is cut by the cutting unit 24. The tip side guide surface 38 for receiving the cut material of the rice cake is formed, and the planter side guide surface 39 for receiving the cut material on the stock side of the cereal is formed on the left side of the back surface of the guide body 27. The center part in the left-right direction of the back surface of the guide body 27 constitutes a connecting surface 41 that connects the tip side guide surface 38 and the stockholder side guide surface 39.

  The stock side guide surface 39 and the tip side guide surface 41 are formed in the left-right direction that is parallel or substantially parallel along the diffusion axis 36 (the axial direction of the diffusion spiral 26). The connecting surface 41 is formed at a position farther from the diffusion spiral 26 than the side guide surface 41, and the connecting surface 41 gradually moves toward the diffusion shaft 36 (diffusion spiral 26) from the stock side guide surface 39 toward the tip side guide surface 38. It is inclined with respect to the diffusion axis 36 so as to approach. In other words, the tip side guide surface 38, the connecting surface 41, and the stockholder side guide surface 39 form a single guide surface divided into three by two bent portions.

  A gap S is formed between the diffusion spiral 26 and the guide body 27 over the entire axial direction of the diffusion shaft 36. As described above, the diffusion spiral 26 (specifically, from the tip side guide surface 38). The tip end side guide D of the gap S is shorter than the tip tip side interval D2 that is the distance from the stock source side guide surface 39 to the diffusion spiral 26. The surface 38 side is narrower than the stock market side guide surface 39 side.

  Due to the difference in the left-right direction of the gap S, it is possible to more evenly distribute left and right excavated cuts whose volume on the tip side is smaller than that on the stock side.

Next, based on FIG. 6 thru | or FIG. 8, about another embodiment of the post-processing apparatus 8, a different part from the above is demonstrated.
6 and 7 are a side view and a rear view showing the configuration of another embodiment of the post-processing apparatus. In the figure, the guide body 27 includes a plate-shaped first guide surface forming member 42 that forms the stock-source-side guide surface 39, a tip-side guide surface 38, and a second left-right direction that forms the connecting surface 41. The guide surface forming member 43 is provided, and the two guide surface forming members 42 and 43 are formed separately from each other.

  On the back side of the first guide surface forming member 42, an inclined surface inclined obliquely downward and rearward is formed in the range from the front to the lower side of the diffusion spiral 27, and the tip side guide surface 39 is formed by this inclined surface. Yes.

  The second guide surface forming member 43 is a plate-like member that is attached and fixed to the right side portion of the inclined surface of the first guide surface forming member 42, and has a triangular portion 43 a on the left side of the second guide surface forming member 43 and a halfway A groove-like bent portion 43c is formed at the boundary between the side and right square portions 43b, and the triangular portion 43a can be bent with respect to the square portion 43b via the bent portion 43c.

  The upper edge portion of the rectangular portion 43b is attached and fixed to the inclined surface of the first guide surface forming member 42, while the upper edge portion of the triangular portion 43a is also bolted to the inclined surface of the first guide surface forming member 42 ( (See FIG. 8).

  In this state, an inclined surface that is gentler than the inclined surface of the first guide surface forming member 42 is formed on the back side of the rectangular portion 43b, and the inclined surface of the rectangular portion 43b is gently inclined downward toward the rear. The tip side guide surface 38 is arranged and formed at a position closer to the diffusion spiral 27 than the stock side guide surface 39 because of the difference in the degree of inclination.

  Further, a mounting hole 42a through which the bolt 44 for mounting the triangular portion 43a is inserted is formed in the first guide surface forming member 42. The mounting hole 42a is a long hole inclined upward toward the left side. This long hole 42a functions as an adjusting means for adjusting the degree and position of inclination of the connecting surface 41 (adjusting the inclination).

  FIG. 8A is a perspective view showing the configuration of the adjusting means, and FIG. 8B is a perspective view showing the configuration of another example of the adjusting means. As shown in FIG. 5A, when the bolt 44 is moved and adjusted in the mounting hole 42a, the folding angle of the triangular portion 43a with respect to the rectangular portion 43b is elastically deformed, and the inclination degree and position of the connecting surface 41 are changed (tilt adjustment). Is done. Further, the bolt 44 is a bolt with a handle, and the triangular portion 43 a is attached and fixed to the first guide surface forming member 42 side in combination with the nut 46.

  Further, the adjusting means shown in FIG. 5B is provided with a fixture 47 that detachably attaches and fixes the triangular portion 43a and the rectangular portion 43b to the first guide surface forming member. A plurality of bolts 47a are formed so as to protrude from the mounting tool 47, and mounting holes 42a through which the bolts 47a are inserted are formed in the first guide surface forming member 42 for each bolt 47a. Similarly to the above-described case, the nucleus attachment hole 42a is configured by a long hole that is inclined upward toward the left side.

  For this reason, the attachment position of the whole 2nd guide surface formation member 43 can be changed within the range which the volt | bolt 47a moves the long hole 42a, and, thereby, the inclination position of the connection part 41 becomes adjustable. Furthermore, the inclination degree of the connecting surface 41 can be adjusted by moving only the bolt 47a on the triangular portion 43a side in the elongated hole 42a.

24 cutting part 26 diffusion spiral 27 guide body (guide member)
38 Tip side guide surface 39 Stock source side guide surface 41 Articulating surface S Gap

Claims (3)

  A cutting part (24) for cutting the cereals that have been threshed and discharged is provided, and the lateral diffusion spiral (26) for diffusing the cut material cut by the cutting part (24) is cut into the cutting part ( 24), a guide member (27) for receiving the cut material falling from the cutting portion (24) and guiding it so as to stay on the diffusion spiral (26) side is provided below the diffusion spiral (26). In the combine post-processing apparatus arranged with a gap (S) on the side, the guide side of the tip-side cut material in the gap (S) between the diffusion spiral (26) and the guide member (27) A combine post-processing apparatus in which the guide member (27) is formed so as to be narrower than the guide side of the former cut material.   The guide member (27) includes a tip side guide surface (38) which is a guide surface of the tip side cut product, a stock side side guide surface (39) which is a guide surface of the stock side side cut product, and a tip side guide surface ( 38) and a joint surface (41) connecting the stock side guide surface (39), the stock side guide surface (39) is more diffused than the tip side guide surface (38). The two guide surfaces (38, 39) are formed laterally along the diffusion spiral (26) so as to be separated from each other, and the connecting surface (41) is connected to the tip side from the planter side guide surface (39). The combine post-processing device according to claim 1, wherein the combine post-treating device is inclined so as to gradually approach the diffusion spiral (26) toward the guide surface (38).   The combine post-processing apparatus according to claim 2, further comprising an adjusting means for adjusting the inclination of the connecting surface (41).

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