JP2019146522A - Thresher - Google Patents

Abstract

To provide a thresher facilitating avoiding insufficient threshing, and damages of threshed materials regardless of properties of crops and an input quantity of crops to a threshing chamber.SOLUTION: A plurality of plate members 31 aligned in a circumferential direction of a threshing cylinder 12 are provided in one area in a direction along a threshing cylinder spindle 12a in a basket-shaped threshing processing part 60. The plate members 31 close voids between threshing tooth bearing members 61. The plate members 31 are provided in a radial direction inside of the threshing cylinder 12 than the tip parts of threshing teeth 62.SELECTED DRAWING: Figure 2

Description

  The present invention is provided with a handling chamber into which the entire harvested crop is put, and a handling chamber provided in the handling chamber so as to be rotatable about a handling spindle in a direction along the front-rear direction of the handling chamber. The present invention relates to a threshing apparatus provided with a handling cylinder for threshing a crop put into the plant.

  In the above-described threshing apparatus, the handling cylinder is provided at the front part of the handling cylinder, and is provided on the rear side of the scraping part, and a scraping part that scrapes the input crop toward the rear of the handling cylinder. And a handling unit that handles the crops scraped by the unit while moving the crops toward the rear of the handling cylinder, and a tapered base portion having a smaller diameter toward the front end side of the handling cylinder. And a spiral blade provided on the outer peripheral portion of the base portion. This makes it possible for the crops thrown into the handling room to be smoothly supplied to the handling processing unit by the scraping unit.

  As this type of threshing apparatus, there are threshing apparatuses disclosed in Patent Document 1 and Patent Document 2, for example. In the threshing apparatus shown in Patent Document 1, the handling cylinder is pivotally supported horizontally in the longitudinal direction of the machine body across the front and rear side walls of the handling chamber. The handling cylinder is configured by connecting a tapered taper cylinder part to a starting end part of a cylindrical straight cylinder part. A spiral scraper blade is provided in the tapered body portion to constitute a scraper. Spiral teeth are attached to the outer peripheral surface of the straight body portion.

  In the threshing apparatus shown in Patent Document 2, a handling cylinder that rotates around a support shaft facing forward and backward is provided in a handling chamber. The handling cylinder is provided with a frustoconical scoring portion provided at the front end portion thereof, and a handling processing portion connected to the rear end of the scavenging portion. Helical teeth are integrally provided on the outer peripheral surface of the scraping unit to handle the harvested cereal meal and scrape and transport it toward the processing unit. The handling unit is supported by the support shaft via the first support plate, the second support plate, and the third support plate, and is arranged in a circumferential direction along the support shaft in a circumferential direction with a space therebetween. The frame and each handle frame are configured by a plurality of handle teeth arranged so as to be arranged at intervals in the front-rear direction in a posture protruding from the handle frame toward the outside of the handle cylinder.

JP 2006-14708 A JP 2013-146272 A

  In the threshing apparatus shown in Patent Document 1, the entire handling unit in the handling cylinder is a drum type. In the case of this type of threshing device, the threshing product is easily transferred to the rear of the handling room, and depending on the crop, such as being difficult to thresh, or when the amount of crops thrown into the handling room is large, There is a possibility that shortage of threshing is likely to occur due to being discharged from the handling room before being sufficiently treated. In addition, threshing losses occur where threshing is discharged with dust.

  In the threshing apparatus shown in Patent Document 2, the entire handling section of the handling cylinder is bowl-shaped. In the case of this type of threshing device, the threshing processed product is excessively transferred when the threshing processed product is difficult to be transferred to the rear of the barrel and when threshing crops that are easy to thresh, or when the amount of crops thrown into the handling room is small. There is a risk of damage due to handling.

  The present invention provides a threshing device that can easily avoid the above-described trouble at low cost regardless of the properties and input amount of crops.

The threshing device according to the present invention comprises:
A handling room into which the entire harvested crop is put,
The handling chamber is provided rotatably around a handling cylinder support shaft in a direction along the front-rear direction of the handling chamber, and a handling cylinder for threshing a crop put into the handling chamber is provided,
The handling cylinder is provided at the front part of the handling cylinder, and is provided on the rear side of the scraping part, the scraping part that scrapes the input crop toward the rear of the handling cylinder, and the scraping part. And a handling unit that handles the crops scraped by moving while moving toward the rear of the handling cylinder,
The scraping portion is provided with a tapered base portion having a smaller diameter toward the front end side of the handling cylinder, and a spiral blade provided on the outer peripheral portion of the base portion,
A plurality of rod-shaped tooth support members supported by the handle cylinder support shaft in a state along the handle cylinder support shaft and spaced apart in the circumferential direction of the handle cylinder in the handle processing section, In each of the plurality of tooth handling support members, the handling teeth are protruded from the tooth handling support member toward the radially outer side of the handling cylinder and are spaced apart in a direction along the handling cylinder support shaft. A plurality of bar-shaped teeth supported by a tooth support member, and
A gap between the tooth-handling support members is closed in a part of the treatment processing portion in a direction along the treatment barrel support shaft on a radially inner side of the treatment drum from the distal end portion of the tooth treatment. In addition, a plurality of plate members arranged in the circumferential direction of the handling cylinder are provided.

  According to this configuration, the drum portion is formed by the plate member in a partial region of the bowl-shaped handling processing unit, and the tooth handling in the bowl-shaped handling processing unit protrudes from the drum unit to the outside in the radial direction, A drum-type handling section is configured, and the handling cylinder includes a drum-type handling section and a bowl-shaped handling section, so that the transfer force of the crop that the handling cylinder has to the rear of the handling cylinder is a bowl-shaped handling section. This improves the handling cylinder provided only with the processing unit, and the threshing power of the crop of the handling cylinder is improved as compared with the handling cylinder provided only with the drum-type handling processing unit.

  Therefore, crops of any nature, such as easy to thresh or difficult to thresh, and any amount of input, such as a small or large amount of crops that are thrown into the handling room, are not sufficient for threshing. Easy to avoid damage or loss. In addition, it is only necessary to provide a plate member in a partial area of the bowl-shaped handling processing unit, and it can be obtained at low cost.

  In the present invention, it is preferable that the plate member straddles the tooth support member adjacent in the circumferential direction of the handle cylinder.

  According to this configuration, since there is no joint between the plate members between the tooth support members, the threshing is difficult to be damaged or the shed is easily transferred.

  In the present invention, it is preferable that the plate member is detachable.

  According to this configuration, it is possible to provide the handling cylinder with the handling function of the drum-type handling processing portion and the drum-type handling processing portion simply by attaching the plate member, and simply by removing the plate member. The handling cylinder can be provided with a handling function only by the bowl-shaped handling unit.

  In the present invention, it is preferable that the plate member has an opening through which the tooth handle is inserted, and is locked to a root portion of the tooth handle inserted through the opening.

  According to this configuration, the plate member can be prevented from shifting due to contact with the crop or a threshing reaction force by a simple positioning structure using the tooth handling as a stopper.

  In the present invention, the plate member has, as the opening, a connection hole provided at one end of the plate member in the circumferential direction of the handling cylinder, and the other end of the plate member in the circumferential direction of the handling cylinder. It is preferable that a notch provided in the part is provided.

  According to this configuration, even if the other end portion of the plate member is locked to the tooth-handling, the notch portion has the engagement flexibility, so that the connection hole can be easily made to the tooth-handling using the engagement flexibility. The one end part of a board member can be locked to a tooth-handling by aligning. In a state where the one end and the other end of the plate member are locked to the tooth handling, the plate member is locked against the tooth handling by the locking with respect to the tooth handling at the connecting hole and the locking with respect to the tooth handling at the notch. Positioning in the circumferential direction of the barrel and positioning in the longitudinal direction of the barrel are performed. That is, while the plate member can be easily attached to the handling cylinder, the plate member can be firmly positioned with respect to the handling cylinder.

  In the present invention, end portions of the plate members adjacent to each other in the circumferential direction of the cylinder overlap each other in the circumferential direction of the cylinder, and the plate member on the lower side in the rotation direction of the cylinder among the overlapping plate members. It is preferable that the end portion of the plate member overlaps the surface side of the end portion of the plate member on the upper side in the handling cylinder rotation direction among the overlapping plate members.

  According to this structure, since the edge part of an adjacent board member overlaps, a clearance gap cannot be made between adjacent board members. There is a step due to the overlap between the adjacent plate members, but the end of the plate member on the lower side of the barrel rotation direction overlaps the surface side of the upper end of the barrel rotation direction, so crops and It is hard for threshing to get caught on steps. That is, it is possible to prevent cereals and the like from entering between the adjacent plate members while preventing crops and cereals from being caught by the steps.

  In the present invention, it is preferable that a fastener for connecting the end portions of the overlapping plate members is provided.

  According to this structure, since the adjacent plate member is firmly connected by the fastening portion, it is possible to avoid problems such as the plate member being lifted.

  In the present invention, on the surface side of the plate member, there is provided a feed blade that is detachably provided across the teeth that are adjacent to each other in the circumferential direction of the barrel, and feeds the threshing processed product to the rear of the barrel. Is preferred.

  According to this structure, the transfer force of the crop and threshing in the drum-type handling portion can be improved by the feeding member, and the crop and threshing are transferred more smoothly toward the rear of the handling cylinder.

  In the present invention, a plurality of support frames are provided that are supported by the handling cylinder support shaft and extend radially outward of the handling cylinder, and the plate member is provided across the adjacent support frames. It is preferable that

  According to this configuration, since the plate member is supported from the inside of the handling cylinder by the support frame against the threshing reaction force, the plate member is unlikely to be distorted or deformed.

  In the present invention, an attachment portion that is folded back inward in the radial direction of the handling cylinder is provided at an end portion of the plate member in the direction along the handling cylinder support shaft, and the attachment portion overlaps the support frame. It is preferable that they are combined and connected to the support frame.

  According to this configuration, since the mounting portion of the plate member is received and supported by the support frame, the plate member is not easily displaced in the longitudinal direction of the barrel.

  In the present invention, it is preferable that the front end portion of the plate member is located on the inner surface side of the base portion in a state of entering the rear end portion of the base portion.

  According to this configuration, since the rear end portion of the base portion covers the front end portion of the plate member and guides the crop toward the plate member, the crop scraped by the scraping portion flows smoothly to the drum portion. .

It is a left view which shows the whole combine. It is a vertical side view which shows a threshing apparatus. It is a vertical side view which shows a handling cylinder. FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2. It is a VV cross-sectional arrow view of FIG. It is sectional drawing of the front part of a handling cylinder. It is sectional drawing which shows the attachment structure of a plate member. It is a top view of a plate member. It is sectional drawing which shows the board member attachment structure provided with another implementation structure.

  Hereinafter, embodiments of the present invention will be described based on the drawings when applied to a combine.

[About the overall structure of the combine]
In the following description, regarding the combine body 1, the direction of the arrow F shown in FIG. 1 is “front of the body”, the direction of arrow B is “back of the body”, the direction of the front side of the plane is “left side of the body”, The direction shall be “right”.

  As shown in FIG. 1, the combine includes a machine body 1 configured by connecting a plurality of steel materials such as a square pipe material, and a crawler type traveling device 2 installed on the left and right of the machine body 1. An operation unit 3 is formed at a right side portion of the front portion of the body 1. The operation unit 3 is covered with a cabin 4. A driving part (not shown) having an engine (not shown) is formed below the operating part 3. In front of the airframe 1, a cutting unit 5 for harvesting crops such as rice, wheat and soybeans is provided. A threshing device 6 is provided at the rear of the machine body 1. A feeder 7 is provided across the front part of the threshing device 6 and the rear part of the reaping part 5. The whole of the crops harvested by the cutting unit 5 from the stock source to the tip is supplied to the threshing device 6 by the feeder 7. At the rear part of the threshing device 6, there is provided a culling device 8 for chopping the threshing waste. A threshing tank 9 for storing threshing obtained by the threshing device 6 is provided at the rear of the machine body 1. A threshing discharge device 10 that discharges the cereal from the threshing tank 9 is connected to the rear part of the threshing tank 9.

[About the configuration of the threshing device 6]
The threshing device 6 is supported by the body 1 such that the front-rear direction of the threshing device 6 matches the front-rear direction of the body 1. As shown in FIG. 2, the threshing device 6 includes a threshing unit 6 </ b> A formed in the upper part of the threshing device 6 and a sorting unit 6 </ b> B formed in the lower part of the threshing device 6.

  As shown in FIG. 2, the threshing unit 6 </ b> A includes a handling chamber 11, a handling cylinder 12 provided in the handling chamber 11, and a receiving net 13 provided on the outer periphery of the lower portion of the handling cylinder 12. The handling chamber 11 is formed by the front wall 14, the rear wall 15, the top plate 16, and the receiving net 13 of the threshing machine body. The top plate 16 is provided with a dust feed valve 16 a arranged in the front-rear direction of the handling chamber 11 with a space therebetween. An entrance 17 is formed in the front part of the handling chamber 11. The inlet 17 communicates with the conveyance end portion of the feeder 7. A dust feed port 18 is formed at the rear of the handling chamber 11. The dust feed port 18 communicates with the shredding case of the discharge shredding device 8. The handling cylinder 12 has a handling cylinder support shaft 12a provided across the front and rear portions of the handling cylinder 12, and is supported by the front wall 14 and the rear wall 15 via the handling cylinder support shaft 12a. The handling cylinder 12 is supported by the threshing machine body so as to be rotatable about a handling cylinder support shaft 12 a along the front-rear direction of the handling chamber 11. A drive mechanism 19 is interlocked and connected to the front end of the barrel support shaft 12a.

[About the structure of the barrel 12]
As shown in FIG. 2, the handling cylinder 12 includes a scraping portion 20 provided at the front portion of the handling cylinder 12, a drum-type handling processing portion 30 provided adjacent to the trailing portion 20, and a drum-type handling portion. There is provided a bowl-shaped handling portion 40 provided adjacent to the handling portion 30.

[Regarding the configuration of the scraping portion 20]
As shown in FIGS. 2 and 3, the scraping portion 20 includes a tapered base portion 21 having a smaller diameter toward the front end side of the handling cylinder 12. The front end portion of the base portion 21 is supported by the extending end portion of the first support frame 51 that extends from the front end portion of the handling cylinder support shaft 12 a toward the radially outer side of the handling cylinder 12. The first support frame 51 is supported by the handling cylinder support shaft 12a so as not to be relatively rotatable. The rear end portion of the base portion 21 is supported by an extended end portion of a second support frame 52 that extends from the handling cylinder support shaft 12 a toward the outside in the radial direction of the handling cylinder 12. The second support frame 52 is supported so as to be relatively non-rotatable at a portion of the handling cylinder support shaft 12a on the rear side of the portion to which the first support frame 51 is connected. The base portion 21 is supported by the handling cylinder support shaft 12a via the first support frame 51 and the second support frame 52 so as not to be relatively rotatable.

  As shown in FIG. 2, a double spiral spiral blade 22 is provided on the outer peripheral portion of the base portion 21. The base portions of the two spiral blades 22 are connected to the base portion 21, and the two spiral blades 22 are supported by the base portion 21 so as not to be relatively rotatable. The spiral blade 22 and the base part 21 are connected by welding. A spiral liner member 23 along the spiral blade 22 is provided on the conveying surface of each of the two spiral blades 22. The liner member 23 is detachably attached to the spiral blade 22 by a connecting screw.

[Configurations of the drum-type handling section 30 and the bowl-shaped handling section 40]
As shown in FIGS. 2 and 3, a bowl-shaped handling unit 60 is provided in a portion of the handling cylinder 12 adjacent to the scoring unit 20, and in a partial region of the bowl-shaped handling unit 60, By changing the shape of the drum-shaped handling unit 60 to the drum-type handling unit 30, the drum-type handling unit 30 is provided in a portion adjacent to the scrambling unit 20 in the handling unit 12. The drum-shaped handling part 30 is provided with a bowl-like handling part 40 at a position next to the drum-type handling part 30. In the present embodiment, as shown in FIG. 2, the specification of the portion of the processing region W1 that is about 1/3 of the processing region W of the bowl-shaped handling processing unit 60 is changed to a drum-type handling processing portion 30. Yes. About 2/3 of the processing area W of the processing area W of the bowl-shaped handling processing unit 60 is a bowl-shaped handling processing section 40. Not limited to this, depending on the properties of the crop to be processed, the amount of crop input in the handling chamber 11, etc., a portion of the processing area narrower than 1/3 of the processing area W of the bowl-shaped handling processing unit 60, or a bowl shape A part of the processing area wider than 1/3 of the processing area W of the handling processing unit 60 may be a drum-type handling processing part 30.

  Specifically, as shown in FIGS. 2, 3, and 4, the bowl-shaped handling processing unit 60 includes six rod-shaped tooth handling support members 61 in the direction along the handling cylinder support shaft 12 a. . The six tooth handling support members 61 are arranged at intervals in the circumferential direction of the handling cylinder 12. The front end portions of the six tooth handling support members 61 are supported by a second support frame 52 that supports the rear end portion of the base portion 21. Two portions of the middle portion of the six tooth support members 61 in the direction along the handle barrel support shaft 12a are provided with a third support frame 53 extending from the handle barrel support shaft 12a toward the radially outer side of the handle drum 12 and It is supported by the fourth support frame 54. The third support frame 53 is supported so as to be relatively non-rotatable at a rear portion of the barrel support shaft 12a with respect to a portion to which the second support frame 52 is coupled. The fourth support frame 54 is supported on a portion of the handling cylinder support shaft 12a on the rear side of the portion to which the third support frame 53 is coupled so as not to be relatively rotatable. The rear end portions of the six tooth handling support members 61 are supported by extending end portions of a fifth support frame 55 extending from the treatment barrel support shaft 12a toward the radially outer side of the treatment barrel 12. The fifth support frame 55 is supported so as not to rotate relative to a portion of the handling cylinder support shaft 12a on the rear side of the portion to which the fourth support frame 54 is connected. The six tooth handling support members 61 cannot rotate relative to the handling cylinder support shaft 12a via the second support frame 52, the third support frame 53, the fourth support frame 54, and the fifth support frame 55. It is supported.

  In the present embodiment, six tooth support members 61 are provided. However, the present invention is not limited to this, and five or less or seven or more tooth support members 61 may be employed. In the present embodiment, the tooth handling support member 61 is made of a round pipe material. Not limited to this, as a member constituting the tooth handling support member 61, any member such as a square pipe material, an angle material, a round or a rectangular solid member may be adopted. In this embodiment, each support frame 51, 52, 53, 54, 55 is configured in a disc shape. The opening on the front end side of the base portion 21 is closed by the first support frame 51, and the opening on the rear end side of the handling cylinder 12 is closed by the fifth support frame 55. The second support frame 52 and the third support frame 53 are not limited to a disk shape, and, for example, a plurality of arms that extend radially from the barrel support shaft 12a toward the base portion 21 or the tooth support member 61. Or any other configuration such as a holed disc having an opening between the barrel support shaft 12a and the base portion 21 or between the barrel support shaft 12a and the tooth support member 61. The support frame may be used.

  In each of the six tooth handling support members 61, a plurality of bar-shaped handling teeth 62 project from the tooth handling support member 61 toward the radially outer side of the handling cylinder 12. A plurality of teeth 62 in each tooth support member 61 are arranged at intervals in a direction along the barrel support shaft 12a.

  In the present embodiment, the tooth handling 62 is fixed to the tooth handling support member 61 by penetrating the tooth handling support member 61 and welding the tooth handling 62 to the tooth handling support member 61. Not limited to this. For example, any fixing means may be employed, such as attaching a screw member to the tooth-handling portion protruding from the tooth-handling support member 61 to the inside of the tooth-handling barrel and fastening the tooth-handling 62 to the tooth-handling support member 61. . In this embodiment, a solid round bar tooth treatment is employed, but any form of tooth treatment such as a solid square bar, round pipe rod, square pipe rod, etc. may be employed.

  As shown in FIGS. 2 and 3, the drum-type handling part 30 is arranged in a circumferential direction of the handling cylinder 12 in a partial area of the bowl-shaped handling part 60 (an area adjacent to the scraping part 20). 6 plate members 31 arranged in parallel. Each plate member 31 is provided across the second support frame 52 and the third support frame 53 that are adjacent to each other in the front-rear direction of the handling cylinder 12.

  In each of the six plate members 31, as shown in FIGS. 3 and 6, the plate member 31 has the front end portion 31 a of the plate member 31 entering the inside of the rear end portion 21 a of the base portion 21 and the base portion 21. It is provided in the state located in the inner surface side. The crop is guided to the drum-type handling portion 30 by the rear end portion 21 a of the base portion 21 covering the front end portion 31 a of the plate member 31. Either a configuration in which the front end portion 31 a of the plate member 31 abuts against the inner surface of the base portion 21 or a configuration in which the front end portion 31 a is separated from the inner surface of the base portion 21 may be employed.

  In each of the six plate members 31, as shown in FIG. 8, a mounting portion 32 that is folded back inward in the radial direction of the handling cylinder 12 at the rear end portion in the direction along the handling cylinder support shaft 12 a of the plate member 31. Is provided. In the present embodiment, the attachment portions 32 are provided at two locations in the handling cylinder circumferential direction of each plate member 31. The attachment portion 32 may be provided at only one place on the plate member 31 or at three or more places on the plate member 31. As shown in FIG. 5, the attachment portion 32 of each plate member 31 is overlapped with the third support frame 53 from the rear side and connected to the third support frame 53. The attachment portion 32 is connected to the third support frame 53 by a connection bolt 32a. Each plate member 31 is detachably supported by the third support frame 53. The rear end side of each plate member 31 is detachably supported by the third support frame 53 via the attachment portion 32.

  As shown in FIG. 8, in each plate member 31, one tooth handling support of the tooth handling support members 61 adjacent in the circumferential direction of the handling cylinder 12 at one end portion in the handling cylinder circumferential direction of the plate member 31. A connection hole 33 is provided as an opening through which the tooth handling 62 of the member 61 is inserted. As an opening in which the tooth handling 62 of the other tooth handling support member 61 of the tooth handling support members 61 adjacent to each other in the circumferential direction of the handling cylinder 12 is engaged with the other end portion of the plate member 31 in the circumferential direction of the handling cylinder. A notch 34 is provided. As shown in FIG. 7, each plate member 31 closes the gap between the tooth handling support members 61 and is located on the radially inner side of the handling cylinder 12 with respect to the distal end portion of the tooth handling 62. The drum portion in the drum-type handling portion 30 is formed by the six plate members 31. The opening on the rear end side of the drum portion is closed by a disk-like third support frame 53. Teeth 62 in the bowl-shaped handling part 60 protrude from the plate member 31 to the outside in the radial direction of the handling cylinder 12, and serve as teeth in the drum-type handling part 30.

  As shown in FIG. 5, each plate member 31 straddles a tooth handling support member 61 adjacent in the circumferential direction of the handling cylinder 12. The gap between the tooth handling support members 61 is closed by the plate member 31 in a state where there is no seam between the tooth handling support members 61.

  Since the opening from which the tooth handle 62 protrudes from the plate member 31 is the notch 34, the plate member 31 can be easily engaged with the tooth handle 62. The plate member 31 and the base of the tooth handle 62 are engaged with each other at the notch 34, and the plate member 31 and the base of the tooth handle 62 are engaged with each other at the connection hole 33. Thereby, the positioning of the plate member 31 with respect to the handling cylinder 12 in the circumferential direction of the handling cylinder and the positioning of the plate member 31 with respect to the handling cylinder 12 in the longitudinal direction of the handling cylinder are firmly performed. In the present embodiment, the connecting hole 33 is provided as an opening at one end of the plate member 31 and the notch 34 is provided as an opening at the other end of the plate member 31. The connection hole 33 may be provided in both one end and the other end of 31, and the notch 34 may be provided in both the one end and the other end of the plate member 31.

  As shown in FIGS. 5 and 7, the end portions 35 in the circumferential direction of the handling cylinder 12 in the plate members 31 adjacent to each other in the circumferential direction of the handling cylinder 12 overlap each other. The overlapping end portions 35 are connected by a connecting bolt 36 as a fastener. The bolt hole 36a shown in FIG. There is no gap between the adjacent plate members 31 for threshing. The end portion 35 of the overlapping plate member 31 on the lower side of the handle member rotation direction overlaps the surface side of the end portion 35 of the overlapping plate member 31 on the upper side of the handle member rotation direction plate member 31. Yes. Although a step is formed by the overlapping of the end portions 35 of the adjacent plate members 31, crops and threshing are not easily caught by the step.

  As shown in FIG. 7, the overlap between the end portions 35 of the adjacent plate members 31 is an overlap in a state where the end portion 35 including the notch portion 34 is positioned inside the end portion 35 including the connection hole 33. ing. The cutout portion 34 is covered from the front side by the end portion 35 having the connection hole 33 so that the cutout portion 34 is not exposed to the front side.

  As shown in FIGS. 2 and 3, a first feed blade 37 is provided on the surface side of the plate member 31 to send the threshing processed product to the rear of the handling cylinder. The first feed blade 37 is detachably supported across the teeth 62 adjacent to each other in the circumferential direction of the handle cylinder 12.

  Of the areas in the bowl-shaped handling section 60, the area other than the area changed to the drum-type handling section 30 is a bowl-shaped handling section 40.

  As shown in FIGS. 2 and 3, a second feed blade 41 that feeds the threshing product to the rear of the handling cylinder 12 is provided on the outer periphery of the bowl-shaped handling part 40. The second feed blade 41 is supported over adjacent tooth handling members 61. Specifically, the connecting cylinder portions 42 formed at both end portions of the second feed blade 41 are externally fitted to the handle teeth 57 from above, and the locking member 43 provided at one end portion of the second feed blade 41. Is engaged with the tooth handling support member 61.

  In the threshing section 6A, the handling cylinder 12a is driven by the drive mechanism 19 so that the handling cylinder 12 is rotationally driven in the rotation direction R (see FIGS. 4 and 5). The whole of the harvested cereal culm as a crop from the stock to the tip is fed by the feeder 7 through the inlet 17 onto the guide plate 11a in the front part of the handling chamber 11. The chopped cereals that have been thrown in are scraped toward the rear of the barrel 12 by the spiral blades 22 in the scraping portion 20 and flow into the drum-type handling portion 30. Since the front end portion 31 a of the plate member 31 enters the rear end portion of the base portion 21, the crop from the scraping portion 20 smoothly flows into the surface side of the plate member 31. The crop that has flowed into the drum-type handling part 30 is handled by hitting the teeth 62 of the drum-type handling part 30. The harvested cereal and the threshing product are transferred toward the rear of the handling cylinder 12 by the tooth handling 62 and the first feed blade 37. In addition, the threshing product to which the rotational force is applied by the tooth handling 62 comes into contact with the dust feeding valve 16 a and is guided by the dust feeding valve 16 a so as to flow toward the rear of the handling cylinder 12. As a result, the harvested cereal meal and the threshing processed product handled by the drum-type handling processing portion 30 are handled while being transferred toward the rear of the handling cylinder 12.

  The threshing processed material transferred toward the rear of the handling cylinder 12 by the drum-type handling part 30 flows into the bowl-like handling part 40 and is handled by the bowl-like handling part 40. That is, the threshing processed material passes between the tooth handling support members 61 and enters the internal space of the processing portion 40, and the threshing processed material around the processing portion 40 and the threshing processed material that has entered the internal space are stirred. However, a handling process is performed by striking the tooth handling support member 61 and the tooth handling 62. Even if the threshing product enters the internal space of the handling part 40, entering the internal space of the drum part of the handling part 30 from the internal space of the handling part 40 blocks the opening on the rear end side of the drum part. This is prevented by the third support frame 53. The threshing product is transferred toward the rear of the barrel 12 by the tooth handling 62 and the second feed blade 41. In addition, the threshing product to which the rotational force is applied by the tooth handling support member 61 and the tooth handling 62 abuts on the dust feed valve 16 a and is guided by the dust feed valve 16 a so as to flow toward the rear of the handling cylinder 12. . Thereby, the threshing processed material handled and processed by the handling part 40 is handled while being transferred toward the rear of the handling cylinder 12.

  Threshed grains such as threshing grains obtained by the handling process by the drum-type handling process part 30 and the handling process by the bowl-shaped handling process part 40 fall through the leakage holes of the receiving net 13. Threshing dust such as straw scraps produced by the handling process by the handling process part 30 and the handling process part 40 is discharged from the handling chamber 11 through the dust feed port 18 and enters the discharge shredding device 8.

  By removing the first feed blade 37 and releasing the connection of the attachment portion 32 of the six plate members 31 to the third support frame 53 and removing the six plate members 31, the handling cylinder 12 is removed. Is a state in which only the bowl-shaped handling unit 60 is provided adjacent to the rear of the scraping unit 20, and the crop thrown into the handling chamber 11 in the threshing unit 6A is handled and processed only by the bowl-shaped handling unit 60. Can be changed.

  As shown in FIG. 2, the sorting unit 6 </ b> B is provided with a swing sorting device 70 provided below the receiving net 13. Dust such as cereal and straw scraps falling from the receiving net 13 is received by the swing sorting device 70, shaken by the Glen pan 71, chaff sheave 72, Glen sheave 73, etc., and transferred toward the rear of the swing sorting device 70. Sorted. Fine grains as the first grain obtained by the sorting process, untreated grains as the second grain fall from the rocking sorter 70, and dust such as sorted straws is the rear part of the rocking sorter 70 Is discharged toward the discharge shredding device 8.

  A red pepper 74 is provided in front of and below the swing sorting device 70. A first air blower 75 is provided above the hot pot 74. A first screw conveyor 76, a second screw conveyor 77, and a second air blower 78 are provided below the swing sorting device 70. A sorting wind that passes through the inside of the rocking sorting device 70 rearward and upward is supplied by the Kara 74. The first air blower 75 supplies the sorting air passing rearward in the upper part of the swing sorting device 70. The second blowing device 78 supplies the sorting air that passes above the second screw conveyor 77 toward the rear of the swing sorting device 70. The first grain dropped from the rocking sorter 70 is collected on the first screw conveyor 76 and conveyed toward the threshing tank 9 by the first screw conveyor 76. The second grain dropped from the swing sorting device 70 is collected on the second screw conveyor 77, conveyed to the reduction device 79 by the second screw conveyor 77, and reduced to the starting end of the swing sorting device 70 by the reduction device 79. The

[Another embodiment]
(1) FIG. 9 is a sectional view showing another mounting structure of the plate member 31. In another mounting structure, the plate member 31 is provided on the inner space side of the handle cylinder 12 with respect to the tooth support member 61. The plate member 31 is held so as not to be separated from the tooth handling support member 61 by a holder 80 connected to the adjacent plate member 31 through the outer side of the tooth handling support member 61 in the treatment cylinder radial direction. By removing the holder 80 from the plate member 31, the plate member 31 can be removed from the handle teeth 62 to the inside of the handle cylinder 12.

(2) In the above-described embodiment, the example in which the plate member 31 is provided in the portion adjacent to the rear portion of the scraping portion 20 in the bowl-shaped handling processing section 60 is not limited to this, but the bowl-shaped handling section 60 is provided. The plate member 31 may be provided in an intermediate part or a rear end part of the processing part 60 that is away from the scraping part 20. Further, the plate members 31 may be provided at a plurality of locations dispersed in the front-rear direction in the bowl-shaped handling unit 60.

(3) In the above-described embodiment, an example in which six plate members 31 are provided has been described. However, the configuration is not limited thereto, and a configuration in which five or less plate members or seven or more plate members are provided may be employed. A configuration in which one plate member is provided over three or more tooth-supporting support members 61 may be employed. That is, a configuration in which the number of plate members 31 and the number of tooth support members 61 are different may be employed.

(4) In the above-described embodiment, the example in which both the connection hole 33 and the notch 34 are employed as the opening through which the tooth handling 62 is inserted is not limited to this, but only the connection hole 33 or the notch is provided. Only the part 34 may be adopted.

(5) In the above-described embodiment, the end portion 35 of the plate member 31 on the lower side in the handling drum rotation direction of the adjacent plate members 31 is on the surface side of the end portion 35 of the plate member 31 on the upper side in the handling drum rotation direction. Although an example in which an overlapping configuration is adopted is shown, an overlap opposite to this overlap may be adopted.

(6) In the above-described embodiment, an example in which the end portions of the adjacent plate members 31 overlap each other is shown. However, the present invention is not limited to this. For example, the end surfaces of adjacent plate members are in contact with each other. Any arrangement may be adopted.

(7) In the above-described embodiment, an example in which the first feed blade 37 and the second feed blade 41 are provided is shown, but not limited to this, the first feed blade 37 and the second feed blade 41 A configuration that does not include both, or a configuration that includes only one of the first feed blade 37 and the second feed blade 41 may be employed.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a threshing apparatus for harvesting various crops such as buckwheat, red beans, black beans and corn in addition to rice, wheat and soybeans.

DESCRIPTION OF SYMBOLS 11 Handling chamber 12 Handling cylinder 12a Handling cylinder support shaft 20 Scratching part 21 Base part 21a Rear end part 22 Spiral blade 31 Plate member 31a Front end part 22 Attachment part 33 Connection hole (opening)
34 Notch (opening)
35 End 36 Connection bolt (fastener)
60 Handling unit 61 Teeth support member 62 Teeth

Claims (11)

A handling room into which the entire harvested crop is put,
The handling chamber is provided rotatably around a handling cylinder support shaft in a direction along the front-rear direction of the handling chamber, and a handling cylinder for threshing a crop put into the handling chamber is provided,
The handling cylinder is provided at the front part of the handling cylinder, and is provided on the rear side of the scraping part, the scraping part that scrapes the input crop toward the rear of the handling cylinder, and the scraping part. And a handling unit that handles the crops scraped by moving while moving toward the rear of the handling cylinder,
The scraping portion is provided with a tapered base portion having a smaller diameter toward the front end side of the handling cylinder, and a spiral blade provided on the outer peripheral portion of the base portion,
A plurality of rod-shaped tooth support members supported by the handle cylinder support shaft in a state along the handle cylinder support shaft and spaced apart in the circumferential direction of the handle cylinder in the handle processing section, In each of the plurality of tooth handling support members, the handling teeth are protruded from the tooth handling support member toward the radially outer side of the handling cylinder and are spaced apart in a direction along the handling cylinder support shaft. A plurality of bar-shaped teeth supported by a tooth support member, and
A gap between the tooth-handling support members is closed in a part of the treatment processing portion in a direction along the treatment barrel support shaft on a radially inner side of the treatment drum from the distal end portion of the tooth treatment. A threshing device provided with a plurality of plate members arranged in the circumferential direction of the handling cylinder.   The threshing apparatus according to claim 1, wherein the plate member straddles the tooth handling support member adjacent in the circumferential direction of the handling drum.   The threshing apparatus according to claim 1 or 2, wherein the plate member is detachable.   The threshing apparatus according to any one of claims 1 to 3, wherein the plate member has an opening through which the tooth handle is inserted and is locked to a root portion of the tooth handle inserted through the opening. .   In the plate member, as the opening, a connection hole provided in one end portion of the plate member in the circumferential direction of the handle cylinder and provided in the other end portion of the plate member in the circumferential direction of the handle cylinder The threshing apparatus according to claim 4, further comprising a notch. Ends in the circumferential direction of the handle cylinder in the plate member adjacent in the circumferential direction of the handle cylinder overlap,
Of the overlapping plate members, the end portion of the plate member on the lower side in the handling cylinder rotation direction overlaps the surface side of the end portion of the plate member on the upper side in the handling cylinder rotation direction of the overlapping plate members. The threshing device according to any one of claims 1 to 5.   The threshing apparatus according to claim 6, further comprising a fastener that connects the end portions of the overlapping plate members.   The feed blade according to claim 1, further comprising: a feed blade that is detachably provided on the surface side of the plate member so as to be detachable across the teeth that are adjacent to each other in the circumferential direction of the cylinder, and feeds the threshing product to the rear of the cylinder. Threshing apparatus as described in any one A plurality of support frames are provided that are supported by the handling cylinder support shaft and extend radially outward of the handling cylinder,
The threshing apparatus according to any one of claims 1 to 8, wherein the plate member is provided across the adjacent support frames. At the end of the plate member in the direction along the handling cylinder support shaft, an attachment portion is provided that is folded back inward in the radial direction of the handling cylinder,
The threshing apparatus according to claim 9, wherein the attachment portion is overlapped with the support frame and connected to the support frame.   The threshing device according to any one of claims 1 to 10, wherein the front end portion of the plate member is located on the inner surface side of the base portion in a state of entering the rear end portion of the base portion.

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