JP2009027993A - Threshing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To shorten the adjustment time for a threshing state which is carried out, when the kind of grain culms to be threshed is changed. <P>SOLUTION: The threshing device is constituted so that the attachment angle α of a threshing tooth body 33, related to the extension direction of a screw blade body 32, may be changed within the range of ±15° by sliding the attaching position of a connector 35. As a result, the adjustment time for the threshing state, carried out when the kind of the grain culms to be threshed is changed, can be shortened because the threshing action angle provided by the threshing action edge part 75 of the threshing tooth body 33 and the screw blade body 32 can be regulated by collectively changing the attaching angle of each threshing tooth body, without having to detach the large number of threshing tooth bodies from the screw blade body 32. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a threshing apparatus mounted on a general-purpose combine.

  2. Description of the Related Art Conventionally, in a handling chamber of a threshing device mounted on a general-purpose combiner, a substantially cylindrical handling cylinder that is rotated around its central axis by engine power is provided. A spiral screw blade body is wound as a spiral handle on the peripheral surface of the handle cylinder main body constituting the handle cylinder.

  In this screw blade body, a large number of tooth-handling bodies are arranged at appropriate intervals along the extending direction, and one end thereof protrudes outward in the radial direction of the barrel body from the outer peripheral edge of the screw blade body. It is arranged.

  At the time of harvesting, the harvested cereals are transported into the handling chamber, and the tooth handling bodies are handled by the rotation of the handling cylinder, whereby the grains are handled (shedded) from the cereals. The grain is collected.

  However, in the handling of the grain that is performed with the rotation of the barrel, the time that the grain and the toothed body interfere with each other depends on the variety of the crop and the state of the grain (that is, the residence time). Thus, it is known that there is a difference in the quantity and quality of the recovered grains.

  Therefore, in a general-purpose combine that harvests a relatively wide variety of grains, it is desirable that the residence time can be freely adjusted according to the properties of the grains in order to keep the threshing state in an optimum state.

  Therefore, in order to adjust the residence time, some proposals have been made that can adjust the protruding length of the tooth handling body disposed in the vicinity of the outer periphery of the screw blade body.

  For example, the tooth-handling body is composed of three tooth bodies whose projecting heights are different from high, medium and low, and a mounting base part continuous to the tooth body, and a bolt insertion hole drilled in the center of the mounting base part. The bolt is inserted into the screw blade body so that it can rotate freely, and the toothed body is rotated around the bolt and fixed at a predetermined position to change the projection height in three stages. A tooth handling structure that has been made possible is known (for example, see Patent Document 1).

  Further, there is known a tooth handling body structure in which a tooth handling body mounting bracket is provided on the screw blade body, and the tooth handling body is inserted into the mounting bracket so as to be freely inserted and retracted so that the position can be adjusted and fixed (for example, , See Patent Document 2).

  According to the tooth handling structure such as these, the protrusion length of the tooth handling body can be changed according to the varieties of crops and the state of cereals, and the threshing efficiency is increased by adjusting the residence time as appropriate. Can do.

Japanese Utility Model Publication No. 6-36671 Japanese Utility Model Publication No. 6-26119

  By the way, in order to improve the threshing efficiency from cereals, in addition to the method of changing the protruding length of the toothed body according to the above-mentioned conventional crop varieties and the state of the cereal, the handling effect of the toothed body It is becoming clear from the study by the present inventors that a method of changing the angle (the angle formed by the handling action edge of the tooth handling body and the tip peripheral edge of the screw blade body) is also useful.

  Rather, the method of adjusting the handling angle of the tooth treatment body according to the variety of crops and the state of the cereals not only improves the threshing efficiency, but also appropriately adjusts the direction of the force applied to the grain. Can be expected to contribute greatly to grain quality improvement.

  However, in the conventional tooth handling body structure, the angle remains fixed, and the handling angle of the tooth handling body cannot be changed.

  Therefore, there is a demand for a threshing device that can change the handling angle of the tooth handling body.

  Further, considering the conventional tooth handling body structure from other viewpoints, it is very troublesome to individually adjust a large number of tooth handling bodies arranged on the screw blade body.

  That is, in order to adjust the tooth treatment body fixed to the screw blade with a bolt or the like, it is necessary to remove the bolt and the tooth treatment body from the screw blade once, change the direction of the tooth treatment body, and reattach it. It takes a long time to perform this operation on each tooth handling body.

  Therefore, the present invention has been made in view of such circumstances, it is possible to adjust the handling action angle of the tooth handling body performed according to the type of crop to be threshing and the nature of the cereal, It aims at providing the threshing apparatus which can shorten the adjustment time of the handling action angle.

  In order to solve the above-described problems, the threshing apparatus according to the present invention includes a handling cylinder, and the handling cylinder is configured such that a handling cylinder body having a cylindrical peripheral wall can be rotated around its axis, and the handling cylinder is provided. In the threshing device constructed by projecting a spirally extending screw blade body on the peripheral wall surface of the main body and projecting a plurality of tooth handle bodies on the screw blade body, each tooth handle body extends in a spiral shape. The screw blade body is attached to the screw blade body in a radial direction centered on the axis of the handle body, and the handle direction formed by the direction of each tooth handle body and the extension direction of the screw blade body extending in a spiral shape is attached. The attachment angle of the tooth body can be adjusted without removing each tooth-handling body from the screw blade body.

  The following points are also characteristic.

(1) Each tooth-handling body pivotally supports the base end portion of the screw blade body so as to be rotatable in the extending direction of the screw blade body, while the connecting body is connected to the screw blade body in the extending direction of the screw blade body. Attached to the connecting body in the middle of each tooth handle body, and a plurality of tooth handle bodies are integrally rotated through the connected body to attach a plurality of tooth handle bodies. The angle can be adjusted simultaneously.

  (2) While each tooth-handling body is attached to one side of the screw blade body, a connection body is attached to the other side surface of the screw blade body, and the connection body spirals along the side surface of the screw blade body. It was formed by extending the screw to make contact with the side surface of the screw blade body so that the sliding position can be adjusted.

  According to the threshing apparatus according to claim 1, the mounting angle of the tooth-handling body is changed without removing each tooth-handling body from the screw blade body. The angle formed by the tip peripheral edge of the threshing can be adjusted, so that the adjustment time of the threshing state performed according to the properties of the cereal to be threshed can be shortened.

  Moreover, according to the threshing device according to claim 2, by only finely adjusting the position of the coupling body along the screw blade body, by changing the mounting angle of the plurality of tooth-handling bodies, their handling action angles. Can be adjusted easily and reliably at one time, and the labor of such adjustment work can be greatly reduced.

  Further, according to the threshing apparatus of the present invention, the coupling body is formed by extending spirally along the side surface of the screw blade body, and the sliding position can be adjusted by making surface contact with the side surface of the screw blade body. Since it is attached, the coupling body also functions as a reinforcing plate for the screw blade body.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a side view of the entire combine A on which the threshing apparatus according to one embodiment of the present invention is mounted, and FIG. 2 shows a top view of the entire combine A. Combine A is an all-throw-in type combine that harvests and threshes multiple types of cereals such as soybean and buckwheat, as well as rice and wheat. As shown in FIGS. 1 and 2, in the combine A, the cutting unit 2 is attached in front of the traveling machine body 1. The traveling machine body 1 can be moved forward or backward by the configuration described later, and when the traveling machine body 1 moves forward, the cereals in front of the traveling machine body 1 enter the cutting unit 2 and enter. The cereal husk is cut in the cutting unit 2.

  First, the configuration of the traveling machine body 1 will be described. In the traveling machine body 1, the machine body frame 4 is provided on a pair of left and right crawler type traveling parts (3, 3) that can move forward or backward. By changing the number of rotations of the left and right traveling sections (3, 3), the left and right courses can be changed.

  A threshing unit 5 as a threshing device is disposed on the upper left side above the body frame 4, and a sorting unit 6 is disposed below the threshing unit 5. An operation part 7, a storage part 8, a prime mover part 10, and a grain carry-out auger 9 are arranged on the upper right side on the machine body frame 4 from the front to the rear.

  An uncut grain culm within a predetermined cutting width enters the cutting unit 2 as the traveling unit (3, 3) advances. In the cutting unit 2, the uncut cereal meal is scraped to the platform 28 side by the cooperation of the divider 31 and the take-up reel 33. Then, the stock of the uncut cereal rice bran that has been raked is cut by the cutting blade 30 and is laterally fed to the substantially central portion by the lateral feed auger 29.

  The harvesting unit 2 is provided with a rectangular cylindrical feeder house 25. The harvested cereals are conveyed into the feeder house 25 from the carry-in entrance 27 of the feeder house 25. In the feeder house 25, a conveyer 35 is disposed. A carry-out port 26 opened at the rear end of the feeder house 25 is connected to the handling chamber 22 of the threshing unit 5 in communication. The cereals that have been transported into the feeder house 25 are slid by the transport slats of the transport conveyor 35 along the bottom of the feeder house 25 so as to be raked up and back, and the unloading part of the feeder house 25 26 to the threshing unit 5.

  The threshing unit 5 is provided with a handling room 22. The handling chamber 22 is sealed during threshing, but can be opened and closed for maintenance by an operator. An axial flow type (screw type) handling cylinder 11 is horizontally installed in the handling chamber 22 so that its axis is in the front-rear direction. In the threshing unit 5, the handling cylinder 11 rotates around its axis, whereby the cereals harvested by the reaping unit 2 are threshed.

  The sorting unit 6 includes a swinging sorter 12 that swings and sorts the grains threshed by the threshing unit 5, and a first tang 13 that further wind-sorts the sorting selected by the swinging sorter 12. And the 2nd Karatsu 14, the 1st conveyor 15 which collects the first grain wind-selected by these Karatsu 13 and 14, the 2nd conveyor 16 which collects the 2nd grain, etc. are provided.

  In the operation unit 7, an operation column 18 is erected on the front portion in the cabin 17. Various operation systems such as a handle 19 are provided at the upper end of the operation column 18. A driver's seat 20 is disposed behind the handle 19.

  The storage unit 8 stores the first grain collected by the first conveyor 15 provided in the sorting unit 6.

  The grain carrying out auger 9 carries out the first grain stored in the storage unit 8 to a loading platform of a transport vehicle.

  An engine 21 and the like are mounted on the prime mover unit 10. By driving the engine 21, each component, that is, the cutting unit 2, the traveling unit 3, the threshing unit 5, the sorting unit 6, the storage unit 8, and the grain carrying out auger 9 are operated.

  3 shows a side view of the handling cylinder 11, and FIG. 4 shows a front view of the handling cylinder 11. As shown in FIG.

  As shown in FIG. 3, a rotating shaft 34 extending in the front-rear direction is horizontally placed between a front wall 71 and a rear wall 72 that form a part of the handling chamber 22, and the handling cylinder 11 is attached to the rotating shaft 34. Is pivoted. Here, the rotating shaft 34 is rotated by driving the engine 21 of the prime mover unit 10.

  As shown in FIGS. 3 and 4 as a whole, the handling cylinder 11 includes a handling cylinder body 31, a screw blade body 32, and a tooth handling body 33. The barrel body 31 is formed by attaching a cylindrical peripheral wall 73 extending in the front-rear direction to a rotating shaft 34 via a disk-shaped front end wall 76 and a rear end wall 77. The central axis coincides with the axis of the rotating shaft 34 and rotates integrally with the rotating shaft 34 (in the present embodiment, it rotates counterclockwise when viewed from the front).

  The screw blade body 32 is rolled on the peripheral surface of the peripheral wall 73 of the barrel body 31 (that is, spirally extends along the peripheral surface of the peripheral wall 73 of the barrel body 31), For example, it is a band-shaped material made of carbon steel material, and is a so-called spiral tooth. The screw blade body 32 is also called a rotor screw. When the barrel body 31 rotates counterclockwise as viewed from the front side of the combine A, the cereal grains in the handling chamber 22 are sent backward by the screw blades 32.

  As shown in FIG. 4, the screw blade body 32 is provided with a large number of tooth handling bodies 33. The tooth handling bodies 33 are arranged at 45 ° intervals along the extending direction of the screw blade body 32. Thereby, eight tooth-handling bodies come to be attached per round of the screw blade body 32. The individual tooth handling bodies 33 project from the screw blade bodies 32 in the extending direction of the screw blade bodies 32 so as to be directed in a substantially radial direction around the axis of the handle body 31. The barrel 11 is rotated around the rotation shaft 34, and the tooth handling bodies 33 handle the cereal so that the grain is handled from the cereal.

  The tooth-handling body 33 is a thin piece made of a general structural rolled steel material such as a carbon steel material. A part of the thin piece extends from the screw blade body 32 to the outer side in the substantially radial direction of the handle body 31, and a portion protruding from the screw blade body 32 has a mountain shape.

  As shown in an enlarged view in FIG. 5A, the tooth handling body 33 has two bolt insertion holes 41 and 42 formed therein. The two bolt insertion holes 41 and 42 are arranged with a space therebetween in a substantially radial direction of the handling body main body 31. Among these, the bolt insertion hole 41 is a perfect circular through hole, but the bolt insertion hole 42 has a barrel main body 31 so that the tooth handling body 33 can be attached to the screw blade body 32 in an adjustable manner. This is a long hole whose longitudinal direction is the radial direction.

  FIG. 5 (b) shows a front view of the screw blade body 32 constituting the handling cylinder 11. As shown in FIG. 5B, the inner diameter of the screw blade body 32 is substantially the same as the outer shape of the barrel body 31. In FIG.5 (b), although the screw blade body 32 looks cyclic | annular, it is actually helical. 5B, the screw blade body 32 is provided with bolt insertion holes 43 and 44 at positions corresponding to the bolt insertion holes 41 and 42 of the tooth handling body 33, respectively. . The bolt insertion hole 43 is a perfect through hole, but the bolt insertion hole 44 is a long hole whose longitudinal direction is the direction in which the screw blade 32 extends spirally.

  Further, the handling cylinder 11 further includes a connecting body 35 in addition to the handling cylinder main body 31, the screw blade body 32, and the tooth handling body 33 described above. FIG. 5C shows a front view of the coupling body 35 constituting the handling cylinder 11. In FIG.5 (c), although the connection body 35 appears to be cyclic | annular, it is actually helical. As shown in FIG. 5C, the outer diameter of the connecting body 35 is the same as the outer diameter of the screw blade body 32. Further, the helical pitch of the coupling body 35 is the same as the helical pitch of the screw blade body 32.

The coupling body 35 is a strip-like long plate member that is spirally extended along the side surface of the screw blade body 32, and one side surface of the screw blade body 32 (the side surface opposite to the side surface to which the tooth handling body 33 is attached). ). The width of the connecting body 35 is shorter than the width of the screw blade body 32. Further, the length of the connecting body 35 in the extending direction is the length of one round of the screw blade body 32. As shown in FIG. 3, since the screw blade body 32 makes eleven rounds on the cylindrical side surface of the barrel body 31, a total of eleven coupling bodies 35 are attached to the screw blade body 32. .

  As shown in an enlarged view in FIG. 5C, the coupling body 35 is provided with a bolt insertion hole 45 at a position corresponding to the bolt insertion hole 41 of the tooth handling body 33. The bolt insertion hole 45 is a perfect circular through hole.

  The eight tooth handling bodies 33 shown in FIG. 5 (a), the screw blade body 32 shown in FIG. 5 (b), and the connecting body 35 shown in FIG. 5 (c) are composed of bolts and nuts. Connected. 6A shows an enlarged view of the vicinity of the tooth handling body 33, and FIG. 6B shows a B-B ′ cross-sectional view of FIG. 6A.

  6 (a) and 6 (b), the tooth handling body 33 and the screw blade body 32 are connected in this order by a bolt 51 and a nut 53, and the tooth handling body 33, The connecting body 35 is connected by a bolt 52 and a nut 54 via a bolt insertion hole 44 of the screw blade body 32.

  The bolt 51 is screwed into the nut 53 while being inserted into the washer 56 and the collar 55 and then inserted into the bolt insertion hole 41 of the tooth handling body 33. The bolt 52 is also inserted into the washer 56 and the collar 55, and is screwed into the nut 54 while being inserted into the bolt insertion hole 41 of the tooth handling body 33 and the bolt insertion hole 44 of the screw blade body 32. ing. The collar 55 is inserted to eliminate backlash between the bolts 51 and 52 and the bolt insertion hole 41 of the tooth handling body 33 and the bolt insertion hole 44 of the screw blade body 32.

  As described above, the tooth handling body 33 extends in a mountain shape from the screw blade body 32 substantially outward in the radial direction, and the rotation direction of the handling cylinder 11 is the direction indicated by the arrow in FIG. Counterclockwise). Therefore, the cereals carried into the handling chamber 22 hit the side on the rotation direction side of the protruding portion of the tooth handling body 33 (the handling action edge 75 in FIG. 6A) so that the grain is handled. become. In order to prevent the tooth handling body 33 itself from rotating due to the cereals hitting the tooth handling body 33, the tooth handling body 33 includes the screw blade body 32, the tooth handling body 33, and the coupling body 35. The bolts 51 and 52 and the nuts 53 and 54 are connected at two locations.

  Further, as described above, the bolt insertion hole 44 provided in the screw blade body 32 is a long hole that is long in the rotation direction of the barrel body 31 (see FIG. 5B), and thus the bolt 52 is tightened. Is loosened, the connecting body 35 is slid in the extending direction of the screw blade body 32, and the mounting position thereof can be finely adjusted.

  When the connecting body 35 is slid in the extending direction of the screw blade body 32, the bolt 52 can be moved in the extending direction of the screw blade body 32 in the bolt insertion hole 44 in the screw blade body 32. When the bolt 52 moves, the tooth handling body 33 rotates around the bolt 51 with the movement. That is, by sliding the attachment position of the connecting body 35 in the extending direction of the screw blade body 32, an angle (mounting angle) formed by the extending direction of the screw blade body 32 and the protruding direction (directing direction) of the tooth handling body 33 is set. α can be changed within a predetermined range (in FIG. 6A, a range of ± 15 °).

  The bolt insertion hole 42 provided in the tooth handling body 33 is a long hole whose longitudinal direction is the radial direction of the barrel body 31. Thereby, it is possible to adapt even when the interval between the bolt 51 and the bolt 52 changes minutely.

  As described above, each tooth-treating body 33 has a base end portion pivotally supported by the screw blade body 32 and is rotatable in the extending direction of the screw blade body 32. Moreover, the connection body 35 is attached so that position adjustment is possible in the extending direction of a screw blade body, and the middle part of each tooth-handling body 33 is connected to the connection body 35. Therefore, if the position of the coupling body 35 is adjusted, the plurality of tooth handling bodies 33 can be integrally rotated via the coupling body 35, and the mounting angle α of the plurality of tooth handling bodies 33 can be adjusted simultaneously. .

  When the mounting angle α of the tooth handling body 33 with respect to the extending direction of the screw blade body 32 is changed, the posture of the handling action edge 75 of the tooth handling body 33 acting on the threshing grain, that is, the handling action edge 75 and the screw Since the angle (handling action angle) formed by the tip periphery of the blade body 32 changes, the threshing state (handling action degree) of the cereal can be changed.

  For example, the tooth handling body 33 is set to a position indicated by a solid line in FIG. 6A, and the attachment angle α of the tooth handling body 33 with respect to the rotation direction of the handling cylinder 11 is set to 90 degrees. In this case, since the rising angle (handling action angle) of the handling action edge 75 of the tooth handling body 33 becomes steep, the degree of handling action received from the handling action edge 75 by the grain meal increases. The time during which the cereal basket receives the handling action from the tooth handling body 33, that is, the residence time is shortened. As a result, how to handle the grain becomes rough. Moreover, the driving torque of the handling cylinder 11 is increased, and the threshing time is shortened.

  On the other hand, the tooth-handling body 33 is set to a position indicated by a one-dot chain line in FIG. 6A, and the mounting angle α of the tooth-handling body 33 with respect to the rotation direction of the hand drum 11 is set to 105 degrees. In this case, the rising angle (handling action angle) of the handling action edge 75 of the tooth handling body 33 becomes gentle, and the handling action degree received from the handling action edge 75 is reduced. The time during which the tooth body 33 receives the handling action, that is, the residence time becomes longer. As a result, the grain can be carefully handled from the cereal. Moreover, the drive torque of the handling cylinder 11 becomes small, and the threshing time becomes long.

  In the present embodiment, the worker attaches the coupling body 35 with respect to the extending direction of the screw blade body 32 so that the grain can always be threshed in an optimum state according to the type and state of the grain. Is threshed in a state where the attachment angle α of the tooth handling body 33 is appropriately set. For example, when performing threshing of a cereal with relatively easy handling of grains, the tooth handling body 33 is set to a position indicated by a solid line in FIG. 6A to shorten the threshing time. On the other hand, when threshing cereal grains where it is relatively difficult to handle grains, the tooth handling body 33 is set to the position indicated by the one-dot chain line in FIG. To do carefully.

  Moreover, as described above, the handling chamber 22 can be opened and closed for maintenance. The operator opens the handling chamber 22, loosens the bolts 51 and 52, and finely adjusts the mounting position of the coupling body 35, thereby adjusting the mounting angle α of the tooth handling body 33. In this way, the coupling body 35 is slid in the required direction along the screw blade body 32, the position of the coupling body 35 is finely adjusted, and then the bolts 51 and 52 are tightened. Since the attachment angle α of the tooth handling body 33 can be adjusted with high accuracy at a time and adjusted, it is possible to save the trouble of individually adjusting the individual tooth handling bodies 33 in the extending direction. As a result, the adjustment time for the threshing state can be further shortened.

  Furthermore, according to this embodiment, in the screw blade body 32, it is attached to the side surface on the opposite side to the side surface to which each tooth handling body 33 is attached. That is, since the connecting body 35 is connected in a state of being in surface contact with the screw blade body 32 by being spirally extended along one side surface of the screw blade body 32, the connecting body 35 is connected to the screw blade body 32. This also functions as a reinforcing plate, and the support function of the tooth handling body 33 by the screw blade body 32 can be ensured well.

  As described above in detail, according to the present embodiment, the handling angle can be adjusted by changing the attachment angle α of the tooth handling body 33 without removing the tooth handling body 33 from the screw blade body 32. Therefore, the adjustment time of the threshing state performed according to the property of the threshing threshing can be shortened.

  In the above-described embodiment, the length of the connecting body 35 is the length of one round of the screw blade body 32. However, the length of the connecting body 35 may be shorter or longer. This length is preferably determined as appropriate depending on the attachment error of the coupling body 35 with respect to the screw blade body 32.

  Of course, the number of tooth pairs 33 around the screw blade body 32 is not limited to eight (45 degree intervals) and can be determined arbitrarily.

  As described above, the threshing apparatus of the present invention is suitable for being mounted on a general-purpose combine.

It is a side view of the combine which concerns on one Embodiment of this invention. It is a top view of the combine which concerns on one Embodiment of this invention. It is a side view of the handling cylinder of the combine of FIG. It is a front view of the treatment cylinder of the combine of FIG. Fig.5 (a) is a front view of a tooth-handling body, FIG.5 (b) is a front view of a screw blade | wing, FIG.5 (c) is a front view of a connection body. Fig.6 (a) is an enlarged view of a tooth handling body, FIG.6 (b) is B-B 'sectional drawing of Fig.6 (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling machine body 2 Cutting part 3 Traveling part 4 Machine body frame 5 Threshing part 6 Sorting part 7 Driving part 8 Storage part 9 Grain carrying out auger 10 Motor part 11 Handling cylinder 12 Oscillating sorter 13 1st Kara 14 2nd Kara 15 1 Number conveyor 16 Second conveyor 17 Cabin 18 Operation column 19 Handle 20 Driver's seat 21 Engine 22 Handling room 25 Feeder house 26 Unloading port 27 Loading port 28 Platform 29 Cross feed auger 31 Handling cylinder body 32 Screw blade body 33 Teeth body 34 Rotating shaft 35 Linked body 41, 42 Bolt insertion hole 43, 44 Bolt insertion hole 45 Bolt insertion hole 51, 52 Bolt 53, 54 Nut 55 Collar 56 Washer 71 Front wall 72 Rear wall 73 Peripheral wall 75 Handling edge 76 Front end wall 77 Rear end wall A Combine

Claims (3)

In addition to having a handling cylinder, the handling cylinder is configured so that a handling cylinder main body having a cylindrical peripheral wall can be rotated around its axis, and a screw blade body extending in a spiral shape projects on the peripheral wall surface of the handling cylinder main body. In the threshing device constructed by projecting a plurality of tooth handling bodies on the screw blade body,
Each tooth-handling body is attached to the screw blade body extending in a spiral shape so as to project in a radial direction centered on the axis of the barrel body,
The mounting angle of the tooth handling body formed by the directing direction of each tooth handling body and the extension direction of the screw blade body extending in a spiral shape can be adjusted without removing each tooth handling body from the screw blade body. Threshing device. Each tooth-handling body pivotally supports the screw blade body at the base end, and is rotatable in the extending direction of the screw blade body, while adjusting the position of the connecting body in the screw blade body in the extending direction of the screw blade body. Attach freely,
It is possible to adjust the mounting angle of multiple tooth handling bodies at the same time by connecting the middle part of each tooth handling body to the connected body and rotating the multiple tooth handling bodies integrally through the connection body. The threshing apparatus according to claim 1, wherein While attaching each tooth-handling body to one side of the screw blade, while attaching a connecting body to the other side of the screw blade,
3. The connecting body according to claim 2, wherein the connecting body is formed by extending spirally along a side surface of the screw blade body, and is attached to the side surface of the screw blade body so that the sliding position can be adjusted. A threshing apparatus according to claim 1.

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