JP5543271B2 - Threshing device - Google Patents

Description

  The present invention includes a holding and conveying mechanism for holding a cutting stock side of the harvested cereal and conveying the harvested cereal and a threshing process on the tip side of the harvested cereal that is rotated and driven by the holding and conveying mechanism. And a guide plate that guides the processed threshing product that flows down toward the stock side of the harvested cereal rice cake with the rotation of the handling barrel toward the handling barrel. The upper side of the cereal conveyance is located on the lower side with respect to the rotation axis of the treatment cylinder, and the lower side of the cereal conveyance lower side is located on the upper side, and the rotation of the treatment cylinder is provided. Accordingly, the present invention relates to a threshing apparatus in which a passage slit for passing a tooth treatment provided in the treatment barrel is cut out.

  The guide plate is scattered in the inside of the chamber while being rotated by the teeth provided on the barrel along with the rotation of the barrel, and the stock side is nipped by the nipping and conveying mechanism and conveyed in the inside of the chamber. The threshing product is conveyed by the sandwiching conveyance mechanism by guiding the threshing product such as a branched grain flowing down toward the plant origin side in the cereal to the handling cylinder. In order to prevent the occurrence of so-called small grains that enter the stock side of the harvested cereal, the grains obtained by the threshing process become crushed grains by providing such a guide plate. It is intended to improve the grain recovery efficiency by preventing it from being discharged out of the machine together with the harvested cereal after processing.

  And in the conventional threshing apparatus, with respect to the extending direction in which the slit for passage through which the tooth handling provided in the handling drum passes extends along the grain trajectory conveying direction of the guide plate so as to follow the rotation trajectory of the tooth handling The width of the passing slit is substantially the same from the slit entrance side part to the innermost part of the slit back side part, and also exhibits the function of guiding the threshing product. In order to do so, a passage slit is formed in the guide plate in a narrow form (see, for example, Patent Document 1).

JP 2000-83456 A

  In the case where the width of the passage slit is substantially the same from the slit entrance side part to the innermost part of the slit back side part as in the above-described conventional configuration, the threshing processed product is rotated together with the teeth handling teeth. When the tooth is passing through the passage slit, clogging occurs in a wide range from the slit entrance side portion of the passage slit to the innermost portion of the slit rear side portion. There is a possibility that the driving load when driving is increased. In particular, in the case of a threshing product that easily gets entangled with the tooth handling, such as a grain with branches, the driving load may increase when the tooth handling passes through the passage slit due to the threshing treatment product staying in the tooth handling. There is.

  Therefore, in order to reduce the driving load of such a handling cylinder, it is conceivable to increase the lateral width of the slit over a wide range from the slit entrance side portion of the passage slit to the innermost portion of the slit back side portion. In this case, there is a disadvantage that the function of preventing the threshing processed product from entering the harvested cereal culm is lowered.

  The purpose of the present invention is to form the shape of the slit for passage reasonably, so that the threshing processed material enters the harvested cereal and becomes a grain while reducing the driving load when driving the barrel. It is in the point which provides the threshing apparatus which becomes possible to avoid.

The threshing apparatus according to the present invention includes a holding conveyance mechanism for holding a cutting stock side of the harvested cereal and transporting the harvested cereal, and a tip side of the harvested cereal that is rotated and driven by the holding and conveying mechanism. And a guide plate that guides the threshing product that flows down toward the stock side of the harvested cereal rice cake with the rotation of the handling cylinder toward the handling cylinder, The culm by the sandwiching and transporting mechanism so that the guide plate is in an oblique position so that the upper side of the cereal conveyance is located on the lower side with respect to the rotational axis of the handling cylinder, and the upper side is located on the lower side of the cereal conveyance It is provided in a state extending along the conveying direction, and a passage slit for passing a tooth treatment provided in the treatment cylinder along with the rotation of the treatment cylinder is notched. The first characteristic configuration is a center line in the cutout width direction of the passage slit. The width of the slit entrance side portion through which the proximal end portion of the tooth treatment passes in a form that is inclined with respect to the cereal conveyance direction by the clamping conveyance mechanism so as to follow the rotation locus of the tooth treatment And the passage slit is formed in the guide plate, and the passage slit is a conveyance path for the harvested cereal meal A plurality of the guide plates formed in an elongated shape along the guide line are formed at intervals, and the innermost portion of the slit back side portion of the plurality of passage slits approaches the rotation trajectory of the distal end portion of the tooth handling tooth. As described above, the passage slit is formed in the guide plate in a form in which arcuate trajectories are drawn and arranged .

  According to the first feature configuration, when the handle barrel is driven to rotate, the tooth handling rotates in a state of passing through the passage slit. This passage slit is a slit through which the proximal end portion of the tooth treatment passes. The lateral width of the entrance side portion is wider than the lateral width of the slit back side portion through which the tip side portion of the tooth-handling passes.

  As a result, since the lateral width of the slit back side portion through which the tip side portion of the tooth-handling passes is narrow, when the threshing processed material that is being rotated at the tip side portion of the tooth-handling passes through the narrow slit, the guide It is received by the plate, separated from the tooth handling teeth, and easily guided toward the handling drum by the guide plate, so that the occurrence of small grains can be prevented.

  On the other hand, since the lateral width of the slit entrance side portion through which the base end side portion of the tooth treatment passes is widened, the threshing processed product rotating while being rotated at the base end side portion of the tooth treatment is Since it becomes easy to pass the passing slit with the tooth handling without being received, it is possible to reduce the driving load when the tooth handling passes through the passing slit in the state where the threshing processed product is rotated. . The proximal end portion of the tooth handle acts on the portion of the harvested cereal bowl that is transported by the clamping transport mechanism from the root side to the tip side. The threshing product that is rotating is less likely to enter the stock base side of the harvested cereal meal that is transported by the clamping transport mechanism, and falls toward the sorting section that is provided on the lower side of the handling drum while being scattered in the handling chamber. It will be easy.

In addition, the center line in the notch width direction of the passage slit is inclined with respect to the extending direction extending along the grain conveying direction of the guide plate so as to follow the rotation trajectory of the tooth handling. Since the guide plate is provided, when the tooth-handling passes through the passage slit, the tooth-handling passes near the center in the notch width direction of the passage slit.
As a result, the gap between the tooth-handling and the inner edge in the notch width direction of the passage slit can be ensured in the same way on both the left and right sides, for example, The driving load can be reduced by avoiding the disadvantage that the driving load becomes large despite the fact that the space between the inner end edge on one side is narrowed and the lateral width of the slit entrance side portion is widened.

  Therefore, by forming the shape of the slit for passage rationally, avoiding the threshing processed material entering the harvested cereal and becoming a grain while reducing the driving load when driving the barrel. Can be provided.

Further, the guide plate is those provided in a form extending in an oblique direction as the transport upstream side with respect to the rotational axis of the threshing drum is positioned above the more the position is conveyed downstream side to the lower side, the number of double The passage slit is formed in the guide plate in a form that draws an arc-shaped locus so that the innermost portion of the slit rear side portion of the passage slit approaches the rotation locus of the tip portion of the tooth handling tooth. In each of the plurality of passage slits, the innermost part of the slit rear side part can be brought as close as possible to the rotation trajectory through which the tip part of the tooth-handling passes.

  By comprising in this way, it becomes easy to guide the threshing processed material by the guide plate, separating it from the tooth handling and guiding it toward the treatment drum in substantially the entire range in the arrangement direction of the plurality of passage slits. .

  If the explanation is added, the outer peripheral surface of the handle cylinder is cylindrical, and the trajectory through which the tip portions of the handle teeth pass is also formed in a cylindrical shape along the rotation axis. If a slit for passage is formed on the guide plate in a state where the innermost portion of the slit rear side of the slit is lined up along a linear trajectory, the slit is formed in the middle portion of the plurality of passage slits in the arrangement direction. The rotation trajectory of the tip of the tooth treatment is closest to the innermost part of the rear part, and the innermost part of the slit rear part is the rotation trajectory of the tip of the tooth treatment at the upper conveyance side and lower conveyance side in the alignment direction. It will be in the state separated from. As a result, in the middle part of the arrangement direction of the plurality of passage slits, the threshing processed product that is being rotated at the tip side portion of the tooth handling is received by the guide plate and separated from the tooth handling and handled by the guide plate. Although it is easy to guide toward the trunk, the innermost part of the slit rear side part is separated from the tip part of the tooth handling tooth at the upper conveyance side and the lower conveyance side in the arrangement direction of the plurality of passing slits. The threshing processed product is difficult to be separated by the guide plate.

On the other hand, in the first characteristic configuration, the plurality of passage slits are used for passage in a form in which an arcuate locus is drawn and arranged so that the innermost portion of the slit rear side portion approaches the rotation locus of the tip of the tooth handling tooth. Since the slit is formed, the leading end of the tooth handle approaches the innermost part of the back part of the slit also in the transport upper side part and the transport lower side part in the arrangement direction, and a plurality of passing slits are arranged. In all the ranges in the direction, the processed threshing product is received by the guide plate, separated from the handling teeth, and easily guided toward the handling cylinder.

The second characteristic configuration of the present invention includes a pinch transport mechanism that pinches the stock side of the harvested cereal cocoon and transports the chopped grain pod, and a tip of the harvested cereal pod that is rotated and driven by the pinch transport mechanism And a guide plate that guides a threshing product that flows down toward the stocker side of the harvested cereal rice cake with the rotation of the handling cylinder toward the handling cylinder. The cereal by the sandwiching and conveying mechanism is such that the guide plate is in an oblique position so that the upper side of the cereal conveyance is located on the lower side of the rotation axis of the handling cylinder and the upper side of the cereal conveyance lower side. A threshing device provided in a state extending along the ridge conveying direction, and having a slit for passage through which a tooth handle provided in the treatment cylinder passes as the treatment cylinder rotates. And the center line in the notch width direction of the passage slit is the rotation of the tooth-handling. The width of the slit entrance side portion through which the base end side portion of the tooth treatment passes is set to be inclined with respect to the cereal conveyance direction by the clamping conveyance mechanism so as to follow the trajectory, and the distal end of the tooth treatment The passage slit is formed in the guide plate in a form wider than the lateral width of the slit back side portion through which the side portion passes, and the passage slit is elongated along the conveying path of the harvested cereal A plurality of the guide plates formed at intervals are formed at intervals, and an edge portion of the guide plate located between the frontmost portions of the slit entrance side portions of the plurality of passage slits is the handle cylinder. The guide plate is formed in a form in which an arc-shaped locus is drawn and arranged so as to approach the outer peripheral surface.

The guide plate is those provided in a form extending in an oblique direction as the transport upstream side with respect to the rotational axis of the threshing drum is positioned above the more transport downstream side located below, to the second feature structure According to the form in which the arc edge trajectory is lined up so that the edge of the guide plate located between the frontmost portions of the slit entrance side portions of the plurality of passage slits approaches the outer peripheral surface of the handling cylinder, Since the guide plate is formed, the guide plate can be as close as possible to the outer peripheral surface of the handling cylinder.

  By comprising in this way, it becomes easy to guide the threshing processed material by the guide plate, separating it from the tooth handling and guiding it toward the treatment drum in substantially the entire range in the arrangement direction of the plurality of passage slits. .

  As described above, the outer peripheral surface of the handling cylinder is cylindrical as described above, for example, the edge portion of the guide plate located between the frontmost portions of the slit entrance side portions in the plurality of passage slits, If the guide plate is formed in a line with a linear trajectory, the outer peripheral surface of the barrel is closest to the edge of the guide plate at the middle of the alignment direction. At the side portion and the lower conveyance side portion, the edge portion of the guide plate is in a state of being separated from the outer peripheral surface of the handling cylinder. As a result, in the middle part of the arrangement direction of the plurality of slits for passing, the threshing product is easily received by the guide plate and guided toward the handling cylinder with the guide plate approaching the outer peripheral surface of the handling cylinder. However, since the edge of the guide plate is separated from the outer peripheral surface of the barrel at the upper transfer side and the lower transfer side in the direction in which the plurality of passage slits are arranged, the threshing product is separated by the guide plate. It becomes difficult to be done.

On the other hand, in the second characteristic configuration, the arcuate shape is such that the edge of the guide plate located between the frontmost portions of the slit entrance side portions of the plurality of passage slits approaches the outer peripheral surface of the barrel. Since the guide plate is formed in a form that draws a trajectory, the edge of the guide plate approaches the outer peripheral surface of the handling cylinder also in the transport upper side location and the transport lower side location in the arrangement direction, In all the ranges in the arrangement direction of the plurality of passage slits, the threshing product is received by the guide plate, separated from the tooth handling and easily guided toward the handling cylinder.

It is a vertical side view of a threshing apparatus . It is a vertical rear view of a threshing apparatus . It is a side view which shows a clamping rail. It is a cross-sectional top view which shows the structure of a clamping rail. It is a side view of the principal part of a guide plate. It is a vertical rear view which shows the arrangement state of a guide plate. Ru side view showing a guide plate.

  Hereinafter, an embodiment in which a threshing apparatus according to the present invention is applied to a threshing apparatus for a self-decomposing combine will be described with reference to the drawings.

  FIG. 1 shows a longitudinal side of a threshing apparatus 1 mounted on a self-decomposing combine, and FIG. 2 shows a longitudinal rear side thereof. The threshing apparatus 1 is connected to a body frame (not shown). Threshing in the processing space formed by the lower case 2 and the upper case 3 connected to the lower case 2 so as to be able to open and close swing while moving the harvested cereals backward. A threshing unit 4 that performs processing, a sorting unit 5 that performs a sorting process on a processed product obtained by the threshing process, and a recovery unit 6 that collects the first and second products obtained by the sorting process Has been.

  The threshing unit 4 is driven to rotate about a holding and transporting mechanism 7 and a front and rear support shaft 8 for holding the cereal side of the chopped cereal and transporting the chopped cereal in a lateral orientation. A handling cylinder 9 for performing a threshing process on the tip side of the head, and a receiving net 10 for leaking a processed product obtained by the threshing process toward the lower sorting unit 5 are configured. Behind the receiving network 10 is formed a dust feed port 11 through which the processed material that has not leaked from the receiving network 10 flows down toward the sorting unit 5 below.

  By the threshing process in the threshing unit 4, the threshing processed material having a large content such as a single grain or a grain with branches is directed from the receiving net 10 toward the upper side (front side) in the selection direction of the selection unit 5. Further, the processed material having a high content such as cut straw and straw scraps flows down from the dust feed port 11 toward the lower side (rear side) in the sorting direction of the sorting unit 5.

  The sorting unit 5 includes a swing sorting mechanism 12 that swings and sorts a processed product from the threshing unit 4 and a red pepper 13 that generates a sorting wind. The sorting unit 5 receives the threshing unit 4 by swing sorting and wind sorting with respect to the processed product. Processed material that has leaked the net 10 is a single grain as No. 1, a mixture such as grain with branch branch as a No. 2 and straw scraps, and a cut straw as No. 3 It is configured to sort into straw scraps.

  The collection unit 6 includes a first collection unit 14 formed below the upper side of the sorting direction of the swing sorting mechanism 12 and a second collection unit 15 formed below the lower side of the sorting direction of the swing sorting mechanism 12. The No. 1 recovery unit 14 collects the first item (grain) selected by the selection unit 5 and the No. 1 screw 16 arranged in the left-right direction on the bottom of the recovered first item, It is configured to be conveyed toward a lifting screw (not shown) that is connected to the right end thereof. The lifting screw is configured to lift the first item conveyed by the first screw 16 and to supply and store it in a grain tank (not shown) arranged side by side on the laterally outer side of the threshing device 1. .

  The second collection unit 15 collects the second item selected by the selection unit 5, and the collected second item is connected to the right end thereof by a second screw 17 arranged in the left and right direction at the bottom thereof. It is configured to convey toward the number reduction screw 17A. The second reduction screw 17 </ b> A performs the threshing process on the second item conveyed by the second screw 17, and then lifts and reduces the swinging selection mechanism 12.

  As shown in FIG. 2, a lower lip plate 18 is provided at the upper left portion of the lower case 2, and an upper lip plate 19 is provided at the lower left portion of the upper case 3. A mouthpiece 20 is formed that enables supply of the harvested cereal bowl between the barrel 9 and the receiving net 10.

  The nipping and conveying mechanism 7 includes a feed chain 21 provided on the left side of the lower case 2 to convey the harvested cereals along the lower lip plate 18, a rail base 22 equipped on the upper lip plate 19, and a lower portion of the rail base 22. And a plurality of push springs 24 for urging the holding rail 23 downward toward the feed chain 21.

  In addition, as shown in FIGS. 3 and 4, the sandwiching rail 23 is configured by pivotally connecting a plurality of rail unit bodies 25 having a substantially U-shaped cross section with connecting pins 26. The connecting pin 26 is configured to be biased downward by the push spring 24. Then, the restricting portion 28 at the upper end of the rod 27 which is built in the push spring 24 and is slidably movable with respect to the rail base 22 contacts the rail base 22 and the downward movement is restricted, whereby the sandwiching rail 23 is turned into a grain. The holding rail 23 is configured to be able to be displaced backwardly against the urging force of the push spring 24 by a pushing operation by the transporting culm.

  As shown in FIG. 2 and FIG. 4, for each of the plurality of rail unit bodies 25 of the sandwiching rail 23, it is possible to prevent wear on the inner surface side of the vertical surface portion located on the outer side of the apparatus. The wear prevention plate 29 is provided in a state of being fixed integrally. By providing the wear prevention plate 29 at the inner surface side in this manner, for example, compared to the case where the wear prevention plate 29 is provided at the outer surface side portion of the vertical surface portion, the wear prevention plate 29 is located on the opposite side to the sandwiching rail 23. When the upper case 3 is rocked around the axis of the rocking fulcrum X and the threshing portion 4 is opened, there is less possibility of interference between the feed chain 21 and the clamping rail 23 (abrasion prevention plate 29).

As shown in FIG. 6, on the upper lip plate 19, the threshing product that flows down from the upper part of the handling cylinder 9 toward the stock side of the harvested cereal as the handling cylinder 9 rotates is guided toward the handling cylinder 9. A strip-shaped guide plate 30 is attached. As shown in FIG. 1 , the guide plate 30 is slanted so that the upper side of the grain transporter is located on the lower side and the upper side of the lower side of the grain transporter is located on the upper side of the rotational axis P of the handling cylinder 9 in a side view. It is provided in the state extended along the grain conveying direction by the clamping conveyance mechanism 7 so that it may become a posture. Incidentally, the guide plate 30 is made of heat-resistant rubber having a predetermined hardness.

In other words, the guide plate 30 extends along the conveyance direction of the harvested corn straw to a position above the harvested corn straw that is nipped and conveyed by the nipping and conveying mechanism 7 except for the position at the conveyance start end side in the nipping and conveying mechanism 7. The nipping and conveying mechanism 7 is arranged along the handling port 20 so that the upper conveyance side is positioned below the rotation axis P of the handling cylinder 9 and the lower conveyance side is positioned higher. It is provided in a form extending in an oblique direction. As a result, as shown in FIG. 1 , the guide plate 30 extends in an oblique direction so that the upper conveyance side is positioned on the lower side with respect to the rotation axis P of the handling cylinder 9 and the upper conveyance side is positioned on the upper side. Will be provided.

The reason why the guide plate 30 is not provided at the conveyance start end portion in the nipping and conveying mechanism 7 is as follows. That is, at the conveyance start end side location in the clamping conveyance mechanism 7, all the harvested cereal grains conveyed to the threshing unit 4 are in a granulated state, and a place where a large driving load is applied to the threshing process by the handling action of the handling cylinder 9. This is because if the guide plate 30 is positioned in such a place, the driving load of the handling cylinder 9 may become excessive.

As shown in FIG. 6, the guide plate 30 is fixed by being bolted in a state where the upper side portion is sandwiched between the upper lip plate 19 and the pressing plate 31, and the lower side portion is a vertical surface of the upper lip plate 19. Is inclined at an angle α of about 45 degrees and extends so as to approach the handle cylinder 9.
In the rear view shown in FIG. 6, the guide plate 30 intersects the tip rotation trajectory of the tooth handling 32 at a portion below the rotation axis P of the handling cylinder 9, and the tip of the guide plate 30 is the lower lip plate 18. Is located at the same height as the upper end of the lower lip plate or below the upper end of the lower lip plate 18.

  The guide plate 30 is notched with a passage slit 33 through which the tooth handling 32 provided on the barrel 9 passes as the barrel 9 rotates. A plurality of passage slits 33 are formed at intervals along a guide plate 30 formed in a long shape along the conveying path of the harvested cereal meal, and the center line L in the notch width direction of the passage slit 33 is formed. However, in line with the rotation trajectory of the tooth handling 32 (so as to overlap), more specifically, with respect to the grain transporting direction Q of the sandwiching transport mechanism 7, more specifically, along the sandwiching transport mechanism 7 of the guide plate 30. A passage slit 33 is formed in the guide plate 30 in an inclined posture with respect to the end portion 34 on the side of the barrel that extends in a shape.

  Further, the guide plate 30 is configured such that the lateral width W1 of the slit entrance side portion 33A through which the proximal end side portion of the tooth handling 32 passes is wider than the lateral width W2 of the slit back side portion 33B through which the distal end side portion of the tooth handling 32 passes. Passing slits 33 are formed in the upper part.

  That is, as shown in FIGS. 5 and 7, the passing slit 33 is tapered such that the width W1 of the slit entrance side portion 33A is wide and the width W2 of the slit back side portion 33B is narrowed toward the inner depth side. It is formed so as to be in a shape. Then, the culm conveyance direction Q of the nipping and conveying mechanism 7 (along the nipping and conveying mechanism 7 of the guide plate 30) so that the center line L of the passing slit 33 becomes the same as (or overlaps) the rotation locus of the tooth handling 32. In addition, a passage slit 33 is formed in the guide plate 30 so as to be inclined with respect to the lower end portion 34) of the lower portion extending in a straight line.

By providing such a guide plate 30, the grains flowing down from the upper part of the handling cylinder 9 toward the stock side of the harvested cereal as the handling cylinder 9 rotates are directed toward the handling cylinder 9 by the guide plate 30. As a result, it is possible to prevent the occurrence of the small grains that enter the stock side of the harvested cereal grains that are transported by the holding and transport mechanism 7, and the stock side of the harvested cereal grains Generation | occurrence | production of the inconvenience which the grain which penetrated is discharged | emitted out of the machine with the harvested grain mash after the threshing process can be prevented.

As shown in FIG. 7 , an arcuate locus Z1 is drawn so that the innermost portion 33C of the slit rear side portion of the plurality of passage slits 33 approaches the rotation locus of the distal end portion of the tooth handling 32 having a cylindrical shape. It is then configured to form a passage slit 33 to the guide plate 30 in a form lined Te. Furthermore, the edge 34 of the guide plate 30 on the handle cylinder side, that is, the edge of the guide plate 30 positioned between the frontmost portions of the slit entrance side portions of the plurality of passage slits 33 is the handle cylinder 9. The guide plate 30 is formed in a form in which an arcuate locus Z2 is drawn and arranged so as to approach the outer peripheral surface 9A .

[Another embodiment]
(1) In the above embodiment, the arc-shaped trajectory Z1 is drawn so that the innermost portion 33C of the passage slit 33 approaches the rotation trajectory of the distal end portion of the handle 32, and the edge of the guide plate 30 on the handle cylinder side Although the thing of the structure which draws circular arc-shaped locus | trajectory Z2 so that the part 34 may approach the outer peripheral surface 9A of the handling cylinder 9 was illustrated, it replaced with the said structure and the innermost part of the slit back | inner side part in the some slit 33 for passage The passage slit 33 is formed in the guide plate 30 in a form in which an arc-shaped locus Z1 is drawn and arranged so that 33C approaches the rotation locus of the distal end portion of the cylindrical tooth handle 32. It is good also as a structure which forms the guide plate 30 in the state in which the edge part 34 by the side of the said handling cylinder is located in a line.

(2) Instead of the above-described configuration, an arc-shaped locus Z2 is drawn so that the edge 34 on the side of the handling cylinder of the guide plate 30 approaches the outer peripheral surface 9A of the cylindrical handling cylinder 9. The passage slits 33 may be formed in the guide plate 30 in a state where the innermost portions 33 </ b> C of the slit rear side portions of the plurality of passage slits 33 are linearly arranged.

(3) In the above embodiment, the heat-resistant rubber is exemplified as the guide plate 30. However, for example, the guide plate 30 may be made of sheet metal, and is configured by applying a resin coating to a canvas or the like. It may be what was done.

(4) Although the threshing device mounted on the combine is shown in the above embodiment, the threshing device may be mounted on a harvester.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a threshing apparatus that handles the tip side in the handling chamber while carrying the cereal culm while holding the root stock and performing the threshing process.

7 Nipping and Conveying Mechanism 9 Handling Cylinder 9A Outer Surface 30 Guide Plate 32 Teeth Handling 33 Passing Slit 33A Slit Entrance Side Part 33B Slit Back Side Part 33C Deepest L Center Line Q Wheat Grain Transporting Direction W1 Horizontal W2 Horizontal

Claims (2)

A holding and conveying mechanism for holding the cutting grain side of the harvested cereal and conveying the harvested cereal, and a handling cylinder for performing a threshing process on the tip side of the harvested cereal that is rotated and driven by the holding and conveying mechanism; And a guide plate for guiding the threshing processed product flowing down toward the stock side of the harvested cereal rice cake with the rotation of the handling cylinder,
The culm by the sandwiching and transporting mechanism so that the guide plate is in an oblique position so that the upper side of the cereal conveyance is located on the lower side with respect to the rotational axis of the handling cylinder, and the upper side is located on the lower side of the cereal conveyance A threshing device which is provided in a state extending along the conveying direction, and is formed with a slit for passage through which a tooth handle provided in the treatment cylinder passes as the treatment cylinder rotates. There,
In the form in which the center line in the notch width direction of the passing slit is inclined with respect to the grain transporting direction by the holding and transporting mechanism so as to follow the rotation trajectory of the tooth handling, and the tooth handling The passage slit is formed in the guide plate in a form in which the lateral width of the slit entrance side portion through which the proximal end portion of the guide passes is wider than the lateral width of the slit back side portion through which the distal end side portion of the tooth handling portion passes. with there,
A plurality of the slits for passing are formed at intervals in the guide plate formed in a long shape along the conveying path of the harvested cereal meal,
The passage slit is arranged on the guide plate in a form in which the innermost part of the slit rear side portion of the plurality of passage slits is arranged in an arc-like locus so as to approach the rotation locus of the tip portion of the tooth handling tooth. Threshing device being formed . A holding and conveying mechanism for holding the cutting grain side of the harvested cereal and conveying the harvested cereal, and a handling cylinder for performing a threshing process on the tip side of the harvested cereal that is rotated and driven by the holding and conveying mechanism; And a guide plate for guiding the threshing processed product flowing down toward the stock side of the harvested cereal rice cake with the rotation of the handling cylinder,
The culm by the sandwiching and transporting mechanism so that the guide plate is in an oblique position so that the upper side of the cereal conveyance is located on the lower side with respect to the rotational axis of the handling cylinder, and the upper side is located on the lower side of the cereal conveyance A threshing device which is provided in a state extending along the conveying direction, and is formed with a slit for passage through which a tooth handle provided in the treatment cylinder passes as the treatment cylinder rotates. There,
In the form in which the center line in the notch width direction of the passing slit is inclined with respect to the grain transporting direction by the holding and transporting mechanism so as to follow the rotation trajectory of the tooth handling, and the tooth handling The passage slit is formed in the guide plate in a form in which the lateral width of the slit entrance side portion through which the proximal end portion of the guide passes is wider than the lateral width of the slit back side portion through which the distal end side portion of the tooth handling portion passes. And
A plurality of the slits for passing are formed at intervals in the guide plate formed in a long shape along the conveying path of the harvested cereal meal,
In a form in which the edge portions of the guide plate located between the frontmost portions of the slit entrance side portions of the plurality of passage slits are arranged in an arcuate locus so as to approach the outer peripheral surface of the handling cylinder. A threshing device in which the guide plate is formed.

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