JP5870361B2 - Threshing device - Google Patents

Description

  The present invention relates to a threshing device for reducing and transporting a second selected item to a handling room or a sorting room.

  A transport path for selectively returning the second product sorted by the sorting unit to the handling chamber side and the sorting unit side below the handling chamber is formed, and the second product is transported horizontally in the transport path. A transport case that covers the periphery of the spiral and horizontal spiral is provided, the terminal end of the transport case is opened to form a threshing side communication port that communicates with the handling chamber side, and at least the lower part of the middle part of the transport case is opened to be selected A switching member that forms a sorting side communication port that communicates with the section side, and provides a jumping body that jumps the second thing to the threshing portion side through the threshing side communication port on the terminal side of the horizontal spiral, and closes the sorting side communication port. Conventionally, a threshing apparatus described in Patent Document 1 that switches the transport path in the transport case of the second item by attaching and detaching from the transport case is known.

Japanese Patent No. 3159173

  In the threshing device of the above-mentioned document, when returning the second picked up to the handling room, the second thing is smoothly discharged from the threshing side communication port by the jumping plate provided on the terminal side of the horizontal spiral. When returning the second item to the sorting unit side, the second item is transferred to the sorting side communication port provided on the lower side of the middle part of the transport case. There is a problem in that it may not be able to be smoothly returned to the sorting section due to clogging at the sorting communication port.

  In the present invention, a route for returning to the handling room via the threshing side communication port provided on the terminal side of the horizontal helix, and a route for returning to the sorting unit side via the selection side communication port provided in the middle of the horizontal helix It is an object of the present invention to provide a threshing device capable of smoothly reducing and transporting a second selected item even when switching to any one of the transport routes.

In order to solve the above-mentioned problems, the present invention firstly forms a transport path for selectively reducing the second product sorted by the sorting unit 17 to the handling chamber 19 side and the sorting unit 17 side below the handling chamber 19. In the transfer path, a horizontal helix 51 for transferring the second object in the horizontal direction and a transfer case 52 covering the periphery of the horizontal helix 51 are provided, and the terminal end of the transfer case 52 is opened to communicate with the handling chamber 19 side. The threshing side communication port 61 is formed, and at least the lower part of the middle part of the transport case 52 is opened to form the sorting side communication port 62 communicating with the sorting unit 17 side, and the second through the threshing side communication port 61 A jumping body 59 for jumping the object to the side of the handling chamber 19 is provided on the terminal side of the lateral spiral 51, and a switching member 54 that closes at least a part of the sorting-side communication port 62 is attached to and detached from the transfer case 52. the conveying destination of the inside carrying case 52 of the threshing side communication In threshing apparatus to change without blocking the mouth 61, it is characterized by comprising by larger opening than the threshing side communication openings 61 sorting side communication port 62.

  Secondly, the sorting side communication port 62 is formed so as to open the lower side and the side of the middle part of the transport case 52, and the side of the sorting case 17 extends from the sorting side communication port 62 of the transport case 52 to the side. A guide case 67 extending to the sorting portion 17 is provided, and the second item from the sorting side communication port 62 is introduced into the sorting portion 17 side through the guide case 67.

  Third, the switching member 54 is formed so that a part of the sorting side communication port 62 is opened even when the sorting side communication port 62 is closed by the switching member 54.

  According to the above configuration, when the second thing is reduced and conveyed to the threshing portion side, the second thing conveyed to the terminal side of the conveyance path is forcibly discharged from the threshing side communication port by the jumping body, and the second thing is In the case of reduction conveyance to the sorting unit side, since the sorting communication port is opened larger than the threshing communication port, the conveyed second product is smoothly discharged without clogging the sorting communication port.

  Further, a sorting side communication port is formed so as to open the lower side and the side of the middle part of the transport case, and a guide case is provided that extends to the side from the sorting side communication port of the transport case and extends to the sorting unit side, When the second item from the sorting side communication port is introduced to the sorting unit side through the guide case, the left and right direction of the sorting side communication port is formed wider than the threshing side communication port, Since the lateral side is largely opened, the second object conveyed by the horizontal spiral is smoothly discharged from the sorting side communication port, and the sorting side communication port is not easily clogged.

  In addition, even when the sorting side communication port is closed by the switching member, the amount of the second object conveyed to the threshing side communication port is large by forming the switching member so that a part of the sorting side communication port is opened. Even in this case, a part of the second item is reduced from the sorting side communication port to the sorting unit side, so that the horizontal spiral and the transport case are not easily clogged.

It is the whole general purpose combiner provided with the threshing device to which the present invention is applied. It is a principal part left view which shows the internal structure of a threshing apparatus. It is a principal part right view which shows the internal structure of a threshing apparatus. It is a principal part top view which shows the internal structure of a threshing apparatus. It is a perspective view which shows the reduction | restoration conveyance body switched to the handling chamber return path | route. It is AA sectional drawing which shows the state switched to the treatment room return path | route. It is BB sectional drawing which shows the state switched to the treatment room return path | route. It is CC sectional drawing which shows the state switched to the treatment room return path | route. It is a perspective view which shows the reduction | restoration conveyance body switched to the selection reduction path | route. It is BB sectional drawing which shows the state switched to the selective reduction path | route.

Hereinafter, embodiments of the present invention will be described based on illustrated examples.
FIG. 1 is an overall side view of a general-purpose combiner equipped with a threshing apparatus to which the present invention is applied. FIGS. 2 to 4 are a left side view, a right side view, and a main part of a main part showing an internal structure of the threshing apparatus. It is a top view. The general-purpose combiner includes a traveling machine body 2 supported by a pair of left and right crawler-type traveling devices 1 and 1 that are traveling parts, and a front side of the traveling machine body 2 that can be moved up and down to harvest grain cereals in a field. The traveling machine body 2 includes a maneuvering unit 4 in which an operator gets behind the mowing unit 3 and performs a steering operation, and a left rear side of the maneuvering unit 4 and the mowing unit 3. The threshing device 6 that performs the threshing operation of the cereals that have been harvested in step 1 and the discharge unit 7 that discharges the slag and the like from the rear end side of the traveling machine body 2 are provided.

  The mowing unit 3 includes a conveyor 8 that conveys the harvested cereal to the threshing device 6 side, a mowing frame 9 that is connected to the front end side of the conveyor 8 and extends forward, and the front end of the mowing frame 9 A divider 11 provided on the side, a pair of left and right support arms 12 extending forward from the rear end side serving as the base end of the cutting frame 9, and the extending ends of the left and right support arms 12 And a take-up reel 13 that is rotatably supported.

  The culm harvested by the reaping part 3 having the above configuration is sent to the front end side of the feeder 14 by a conveying auger (not shown) on the reaping frame 9 side, and the culm conveyed to the feeder 14 is provided inside the feeder 14. It is conveyed rearward by the conveyor 8. The harvested cereals conveyed to the rear end side of the feeder 14 are sent to the upper front end side of the threshing device 6.

  The threshing device 6 is an upper side of the threshing device 6 and performs a threshing portion 16 for performing threshing work on the harvested cereal mash that is conveyed from the conveyor 8, and a lower side of the threshing device 6 and the threshing portion 16 includes a sorting unit 17 that sorts the cereals threshed by 16 into the first grain, the second, and the dusts such as sawdust.

  The threshing section 16 includes a handling chamber 19 into which the harvested cereal rice cake is introduced from the rear end side of the conveyor 8, and a front and rear handling cylinder rotation shaft 21 formed over the entire front and rear direction of the handling chamber 19. And a cylindrical handle 22 having a funnel-shaped front end, and an arcuate shape in which the center side is recessed along the shape of the handle 22. And a plurality of dust feeding valves arranged on the ceiling side of the handling chamber 22 in the front-rear direction.

  The harvested cereal mash introduced into the front side of the handling chamber 19 is provided along the handling teeth 24 and the plate-like handling teeth 24 spirally provided on the side surface of the handling cylinder 22. It is guided to the rear side of the handling chamber by the dust delivery valve. That is, when the handling cylinder 22 rotates about the handling cylinder rotating shaft 21, the harvested cereal mash introduced into the handling room 19 is transferred to the rear side of the handling room 19.

  Thereby, the harvested cereals fed into the handling chamber 19 are handled and threshed by the projections 26 attached to the handle teeth 24 at a predetermined interval and the receiving net 23. That is, since the whole harvested cereal mash that has been harvested by the reaping unit 3 is put into the handling chamber 19, threshing work is performed on the entire cereal shed. The threshing that has undergone the threshing process passes through the receiving net 23 and falls to the sorting unit 17 on the lower side. The handling chamber 19 and the sorting unit 17 are partitioned by a receiving net 23.

  The sorting unit 17 includes a swing sorting body 27 that swings and sorts the cereal that has passed through the receiving net 23, a sorting case 28 that houses the swing sorting body 27, and a red fan 29 that blows the sorting wind. , The second sorting fan 31 for discharging the sorted waste to the outside, the first spiral 32 for collecting and transporting the sorted first thing, and the second for collecting and transporting the sorted second thing And a helix 33. As a result, the cereals falling from the receiving net 23 are dropped onto the chaff sheave of the swinging sorter 27, and further spilled downward while being sorted by the chaff sheave.

  The cereal that has leaked from the rocking sorter 27 can select the grain that is the first thing by the sorting air by the tang fan 29 and the second thing by the sorting wind by the second sorting fan 31. And dust can be sorted out.

  The first spiral 32 extends in the left-right direction behind the red pepper fan 29, conveys the selected first thing to the left and right sides of the threshing device 6 (right side in the illustrated example), and the two The second helix 33 extends in the left-right direction behind the second sorting fan 31 and conveys the second picked-up item to the right side of the threshing device 6.

  Further, on the right side of the threshing device 6, a grain conveying device 36 that conveys the first item conveyed by the first spiral 32 to the grain tank 34 side and a second item conveyed by the second helix 33 are handled. And a reduction transfer device 37 for reducing transfer to the chamber 19 or the sorting unit 17.

  The grain conveying device 36 includes a grain conveying case 38 erected upward from the terminal end of the spiral 32, and a drive body 39 that is chain-driven in the vertical direction provided in the grain conveying case 38. And a cup-shaped transport body 41 that transports the top thing scooped up at the lower end side by providing a plurality of the drive body 39 at a predetermined interval, and is disposed on the upper front side of the drive body 39 and extends to the right side. And a grain helix 42 that conveys the first item to the glen tank 34.

  That is, the first thing conveyed to the terminal end side of the first spiral 32 is scooped up by the conveying body 41 at the lower end side of the grain conveying case 38, and the grain arranged on the front side at the upper end side of the grain conveying case 38. It is discharged to the grain spiral 42 side and supplied to the grain tank 34 arranged on the right side of the grain transport device 36.

  The reducing and conveying device 37 includes an upper conveying body 43 that conveys the second article conveyed by the second helix 33 upward, and a second article conveyed by the upper conveying body 43 to the front, And a reduction carrier 44 that returns to the sorting unit.

  The upper transport body 43 includes an upper transport case 46 erected upward from the terminal side of the second spiral 33, and a drive body 47 that extends in the vertical direction in the upper transport case 46 and drives the chain. The drive body 47 is provided with a plurality of plate-like transport plates 48 provided at predetermined intervals, and the second product transported by the second spiral 33 is transported upward and discharged to the rear end side of the reduction transport body 44.

  The reduction transport body 44 extends from the upper side of the upper transport body 43 toward the front side, and transports the second transported material forward to the front side and secondly to the handling chamber 19 or the sorting unit 17. Drain things. Incidentally, the reduction transport body 44 is arranged on the inner side in the left-right direction (left side in the illustrated example) with respect to the grain transport device 36 (the grain transport case 38), and the front end (the grain spiral 42) of the grain transport device 36. ) Extending to the front side (see FIGS. 3 and 4). The detailed configuration of the reduction carrier 44 will be described later.

  In the threshing unit 16, the relatively large waste on the receiving net 23 remaining after the threshing process is transferred by the spiral plate-like handle 24 and guided by the dust feed valve 19. It is transferred to the rear end side, falls from the rear end portion of the receiving net 23 to the discharge portion 7, and is discharged outside the apparatus. Further, among the cereals on the swinging sorter that has fallen from the receiving net 23 in the sorting unit 17, dusts such as sawdust sorted by the sorting unit 17 are sent from the second sorting fan 31 and the like. The sorting air is discharged from the rear end side of the sorting case 28 to the outside by the sorting wind.

  That is, from the discharge part 7, it is a comparatively big waste etc. which fall from the rear end part of the receiving net 23 of the threshing part by the said structure, and the fine waste etc. discharged | emitted from the rear end side of the selection part 17. The configuration is such that the dust is discharged toward the rear of the traveling machine body 3.

Next, the configuration of the reducing carrier will be described with reference to FIGS.
5 to 8 are a perspective view, a cross-sectional view taken along a line AA, a cross-sectional view taken along a line BB, and a cross-sectional view taken along a line C-C. It is the perspective view and BB sectional drawing which show the reduction | restoration conveyance body switched to the selection reduction path | route.

  From FIG. 5 to FIG. 10, the reducing transport body 44 includes a reducing spiral 51 (horizontal spiral) that transports the second product transported by the upper transporting body forward, and a front-rear direction that covers the periphery of the reducing spiral 51. A transfer case 52, a charging case 53 that guides the second item transferred upward by the upper transfer body 43 to the rear end side of the transfer case 52, and a handling chamber that returns the transfer route of the second item to the handling chamber 19. An opening / closing lid 54 (switching member) that switches to either the transport path or the sorting unit return path that returns to the sorting chamber 17 is provided. At this time, the reduction transport body 44 is connected to the upper transport case 46 via the input case 53, and the left side of the transport case 52 is connected to the right side of the threshing device 6, so that it can be stably fixed and held. Has been.

  The charging case 53 extends from the upper side of the upper conveyance case 46 toward the lower front side, so that the upper rear surface side of the charging case 53 communicates with the upper side of the upper conveyance case 46, and The lower left side of the input case 53 communicates with the transfer case 52. In addition, the charging case 53 is provided with an inclined surface 56 that is inclined downward toward the conveyance case 52 side (lower left), and the second item charged from the upper side of the upper conveyance case 46 is transferred to the conveyance case 52 side. It can guide you smoothly.

  The reduced spiral 51 includes a rotational shaft 57 in the front-rear direction that is rotationally driven by the power from the engine transmitted from the drive shaft 45 on the rear end side, and a helical plate integrally formed around the rotational shaft 57 in a spiral manner. 58 and a jumping plate 59 that rotates around the axis provided on the front end side of the rotation shaft 57, and the entire reduced spiral 51 is formed in a cylindrical shape that is long in the conveyance direction, and is supplied from the upper conveyance body 43. It is comprised so that a thing may be conveyed ahead. The reduced helix 51 extends to the front side of the handling chamber 19 along the handling cylinder 22.

  The transport case 52 is formed in a box shape extending in the front-rear direction so as to cover the periphery of the reduced spiral 51, and the lower surface side of the transport case 52 is formed along the shape of the reduced spiral 51. It is covered with a bent portion 50 (see FIG. 6). In the illustrated example, the bent portion 50 is formed on the lower side of the transport case 52, directly below the reduced spiral 51, with a horizontal plate-shaped bottom along the transport direction, and on both sides of the bottom toward the center of the reduced spiral. An inclined portion that is inclined downward is formed. The transport case 52 may be formed to be curved in an arc shape along the shape of the reduced spiral 51 provided on the inner side.

  The transport case 52 is a front portion side of the transport case 52, covers the periphery of the jump plate 59, and has a case front portion 52a in which a threshing side communication port 61 communicating with the handling chamber 19 is formed, A middle part 52b of the transfer case 52 adjacent to the case front part 52a and having a sorting side communication port 62 communicating with the sorting chamber 17 is formed.

  The case front part 52a forms a threshing side communication port 61 communicating with the handling chamber 19 by opening the lower left side in the case, and the front and rear positions of the threshing side communication port 61 are the front end of the reduced helix 51 It is provided at a position where the above-mentioned jump plate 59 faces (see FIG. 5). That is, the second object conveyed to the front end side of the transport case 52 by the reduced spiral 51 can be forcibly discharged from the threshing side communication port 61 to the front end side of the handling cylinder 22 in the handling chamber 19 by the jump plate 59. It is configured.

  The case middle portion 52b is formed with a sorting side communication port 62 on the lower surface side, and the sorting side communication port 62 extends in a U-shape extending toward the left and right outer sides (right side in the illustrated example). The left and right direction is formed wider than the left and right width of the transport case 52 by the protruding frame 63. At this time, in the case midway part 52b, the upper side from the right side of the reduced spiral 51 is opened along the overhanging frame 63 so that the opened space can be covered by the detachable upper cover 66. It is configured. Specifically, the upper cover 66 includes a peripheral wall portion 66a that rises from the overhanging frame 63 to the upper surface side of the transfer case, and a top plate portion 66b that covers the upper surface of the case midway portion 52b. The space protruding to the right side of 52b can be closed (see FIGS. 5, 7 and 10).

  Further, a guide case 67 that extends downward from the sorting-side communication port 62 and communicates with the right side surface of the threshing device 6 is provided in the case midway portion 52b. The second object that has dropped to the sorting-side communication port 62 can be guided to the sorting unit 17. Specifically, the guide case 67 is connected to the upper right side on the front side of the swing sorter 27, and the second object that has fallen to the sorter side communication port 62 is handled by the receiving net 23. The threshing apparatus 6 is thrown into the threshing device 6 from the right side of the chamber 19 so that the second item falls to the front end side of the swing sorter 27 (see FIGS. 4 and 10).

  As shown in FIGS. 5 and 9, the opening / closing lid 54 is configured to be detachable on the transport case 52 side. Specifically, the open / close lid 54 includes a bottom 54a that covers the lower side of the reduced spiral 51, an inclined portion 54b that is inclined upward from the right end side of the bottom portion 54a, and an upper end side of the inclined portion 54b. A side part 54c bent upward, a bent part 54d bent downward from the left end side of the bottom part 54a, and bolt fixing parts 54e, 54e for fixing bolts to the transport case 52 side provided at the front and rear ends. And are formed.

  A contact member 68 that contacts the opening / closing lid 54 is provided on the left side of the sorting side communication port 62 of the case midway portion 52b. The contact member 68 includes an inclined portion 68a inclined from the left surface of the case midway portion 54 toward the selection side communication port 62 side at the center lower side, and an abutting portion 68b formed by bending the lower end side of the inclined portion 68a downward. Is formed so that it can be attached and fixed to the case midway 52b side.

  Thus, the opening / closing lid 54 is positioned by bringing the bent portion 54d of the opening / closing lid 54 into contact with the contact portion 68b of the contact member 68, and the bolt fixing portions at the front and rear ends of the opening / closing lid 54 in this state. The opening / closing lid 54 can be attached and fixed to the conveyance case 52 side by bolting to the conveyance case 52 side via 54e, 54e.

  With this configuration, the transport path of the reducing transport body 44 handles the second object transported to the reducing spiral 51 by attaching the opening / closing lid 54 to the transport case 52 side so as to cover the lower side of the reducing spiral 51. On the other hand, it is possible to switch to the handling chamber return path for transporting to the chamber 19 side (see FIGS. 5 to 8). It is possible to switch to the selective reduction path (see FIGS. 9 and 10).

  Thereby, when performing threshing work of rice, wheat, etc., it is possible to improve the threshing / sorting performance by reducing the threshing / sorting performance to the side of the handling room 19 through the handling room reduction route, In the case of a large grain, it is possible to suppress damage to the harvested product by reducing it to the sorting unit 17 through the sorting and reducing route, so that versatility is improved. Each conveyance path will be described below.

  As shown in FIGS. 5 to 8, when the transport path of the reduction transport body 44 is switched to the handling chamber return path, the sorting side communication port 62 on the lower surface side of the case midway portion 52 b is covered with the opening / closing lid 54, so that the reduced spiral 51 The second thing transported in the step can be transported to the case front part 52a without dropping at the sorting side communication port 62, and reduced and transported to the handling chamber 19 side through the threshing side communication port 61 of the case front part 52a. it can. At this time, the sorting-side communication port 62 is covered with a surface bent along the shape of the reduced spiral 51 by the abutting member 68 and the inclined portions 68a and 54b and the bottom portion 54a of the opening / closing lid 54. Can be efficiently transported.

  Further, as shown in FIG. 7, the reduction transport body 44 switched to the handling chamber reduction path covers from the lower side to the right side of the reduction helix 51 by the opening / closing lid 54, while the reduction helix in the middle of the path. An opening 70 is provided on the right upper side of 51, and the opening 70 is connected to the sorting side communication port 62 through a space formed on the right side of the reduced spiral 51 by the upper cover 66. It is configured. That is, by attaching the opening / closing lid 54 to the transport case 52 side, the sorting side communication port 62 (below the reducing spiral 51) is covered with the opening 70 connected to the sorting side communication port 62 being formed, A transport path for transporting the second item to the end of the transport case is secured.

  According to the above configuration, when switching to the treatment room reduction route, the second item conveyed by the reduced spiral 51 is conveyed to the case front portion 52a on the route end side and is moved to the threshing side communication port 61 by the jump plate 59. Discharged. At this time, since the communicating portion 62 communicates with the sorting side communication port 62 through the opening 70 formed on the upper right side of the reduced spiral 51 in the midway portion 52b, the transport amount of the second product by the reduced spiral 51 is larger than a predetermined amount. Then, a part of the second product conveyed by the reduced spiral 51 falls from the opening / closing lid 54 covering the lower side of the reduced spiral 51 to the opening 70 side and falls to the sorting side communication port 62. Therefore, it is possible to efficiently prevent clogging in the transport case 52 of the second product that is switched to the handling room return path and transported to the threshing side communication port 61.

  As shown in FIGS. 9 and 10, when the transport path of the reduction transport body 44 is switched to the selective reduction path, the second side transported by the reduced spiral 51 is changed to the sorting side formed below the middle part of the reduced spiral 51. It can be dropped to the communication port 62 and returned to the sorting unit 17 side.

  The opening / closing lid 54 removed by switching to the sorting and reducing path can be accommodated by being attached to the inner surface side of the upper cover body 66. Specifically, the opening / closing lid 54 is rotated by 90 ° when viewed from the front, and the opening / closing lid 54 is moved to the upper cover body in a state where the side portion 54c of the opening / closing lid 54 is in contact with the top plate portion 66b of the upper cover body 66. It can be bolted to the 66 side. Accordingly, the opening / closing lid 54 is accommodated in a space formed by the upper cover 66, and the inclined portion 54 b of the opening / closing lid 54 is attached so as to cover the upper right side of the upper cover body 66.

  With the above configuration, the sorting-side communication port 62 is greatly opened in the front, rear, left, and right as compared with the threshing-side communication port 61, so that the second item can smoothly enter the sorting unit 17 without clogging the sorting-side communication port 62. Reduced and transported. At this time, the reduced helix 51 is driven counterclockwise when viewed from the front (see FIG. 10), so that the second object is easily blown into the open space on the right side of the opened reduced helix 51. The second product can be smoothly supplied to the sorting side communication port 62.

  In addition, since the threshing side communication port 61 is kept open even after switching to the sorting and reducing route, the transport amount of the second item by the reduced spiral 51 is increased, and a part of the second item is sorted. Even if it does not fall to the communication port 61, the second product is discharged from the threshing side communication port 61 after being transported to the case front portion 52a side, so the second product is clogged in the transport case 52. This can be prevented.

  The above-described reduction conveyance device 37 includes an upper conveyance body 44 in the vertical direction that conveys the second object collected and conveyed by the second spiral 33, and a front-rear direction that conveys the upper conveyance body 44 from the upper end side to the front. Although this is constituted by the reducing carrier 44, this is extended from the terminal side of the second helix 33 toward the front obliquely upper side on the threshing side communication port 61 or the sorting side communication port 62 side. Alternatively, it may be constituted by a reducing carrier (not shown).

17 Sorting section 19 Handling room 51 Reduced helix (horizontal helix)
52 Transport case 54 Opening / closing lid (switching member)
59 Jumper 61 Threshing side communication port 62 Sorting side communication port 67 Guide case

Claims (3)

A transport path for selectively reducing the second product sorted by the sorting section (17) to the handling chamber (19) side and the sorting section (17) side below the handling chamber (19) is formed. The horizontal helix (51) for transferring the second object in the horizontal direction and a transfer case (52) for covering the periphery of the horizontal helix (51) are provided, and the end of the transfer case (52) is opened to open the handling chamber (19 The threshing side communication port (61) communicating with the) side is formed, and at least the lower part of the middle part of the transport case (52) is opened to form the sorting side communication port (62) communicating with the sorting unit (17) side. And a jumping body (59) for jumping the second thing to the handling chamber (19) side through the threshing side communication port (61) is provided on the terminal side of the horizontal spiral (51), and the sorting side communication port (62) By attaching / detaching the switching member (54) that at least partially closes the transfer case (52), The conveying destination of the transport within the case (52), the threshing apparatus to change without blocking the threshing side communication openings (61), by larger opening than the threshing side communication port sorting side communication opening (62) (61) Threshing device that becomes.   The sorting side communication port (62) is formed so as to open the lower side and the side of the middle part of the transport case (52), and is extended laterally from the sorting side communication port (62) of the transport case (52). A guide case (67) extending toward the sorting portion (17) is provided, and the second item from the sorting side communication port (62) is introduced into the sorting portion (17) side through the guide case (67). The threshing apparatus according to 1.   3. The switching member (54) according to claim 1 or 2, wherein the switching member (54) is formed so that a part of the sorting side communication port (62) is opened even when the selection side communication port (62) is closed by the switching member (54). The threshing device described.

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