JP6075860B2 - Threshing device - Google Patents

Description

  The present invention relates to a threshing apparatus including a handling cylinder that is driven to rotate about an axis in the vertical direction.

  A threshing device including a handling cylinder that is rotationally driven in a handling chamber and a conveying body that conveys the cereal with the tip pointed to the handling cylinder side is known in the art. Grains that are supported so as to face in the vertical direction and are arranged in parallel along the axial direction of the rotating shaft to provide a plurality of comb-shaped teeth on the outer peripheral surface side of the barrel and are conveyed by the carrier A threshing apparatus described in Patent Document 1 that performs threshing treatment with a rotating barrel that rotates the knives is conventionally known.

JP 2011-97857 A

  However, the threshing apparatus of the above document has a sorting chamber in which the spikes of the cereals occur during the threshing process due to the plurality of comb-shaped teeth handling teeth, and the chopped grains etc. sort the grains from the processed product on the lower side of the handling chamber The drop of the grain in the sorting room may deteriorate the grain sorting performance.

  In the present invention, in a threshing apparatus comprising a handling cylinder that rotates around a vertical rotation axis and a plurality of comb-shaped teeth that are arranged in parallel along the axial direction of the handling cylinder, it occurs during threshing processing. It is an object of the present invention to provide a threshing device that can prevent the grain sorting performance of the sorting room from being lowered due to the broken rice cake.

In order to solve the above problems, the present invention firstly includes a handling cylinder 6 that is rotationally driven around the vertical rotation shaft 31 in the handling chamber 2, and a cereal with the tip pointed to the handling cylinder 6 side. A plurality of teeth 32A having a comb shape by being arranged in parallel along the axial direction of the barrel 6 on the outer peripheral surface side of the barrel 6. In a threshing apparatus that is provided and threshing by a handling cylinder 6 that rotates the grain pod conveyed by the conveying body 4, a sorting chamber 3 for sorting the grains from the processed product that has been threshed is directly below the handling cylinder 6. And a flat fall prevention plate 57 for preventing at least a part of non-sorted items other than the grains leaving the grain during the threshing process from falling. The fall prevention plate 57 is handled in plan view. A sorting hole 57 which is arranged on the upper sorting side of the chamber 2 and allows the grain to leak. Is formed on the lower end side of the handling cylinder 6 and is disposed on the lower sorting side of the handling chamber 2 in a plan view. A communication port 66 that communicates with the sorting chamber 3 side is provided, and the removal object 59 is rotationally driven to wrap the processed material that does not fall from the fall prevention plate 57 with the rotation locus of the removal body 59 in plan view. It transfers to the said communicating port 66 side, It is made to fall to the sorting chamber 3 side, It is characterized by the above-mentioned.

  According to the above configuration, when the cereals carried by the carrier are threshed by the fall prevention means provided on the lower side of the handling cylinder, the cereals that are cut off from the cereals by the tooth handling and separated Since non-sorted materials other than grains can be prevented from falling into the sorting chamber, the sorting performance in the sorting chamber is further improved.

  In addition, according to the fall prevention member disposed on the upper side of the sorting room in plan view, it is possible to prevent the sorting waste from dropping from the handling room to the upper side of the sorting room, thereby improving the sorting efficiency. In addition, cutting chips etc. fall from the handling chamber to the lower sorting side of the sorting chamber, so that it is possible to prevent clogging of processed materials and cutting chips on the fall prevention plate.

  In addition, according to the fall prevention member formed with a circular sorting hole that allows grain leakage, the processed material such as the grain falls from the fall prevention member to the sorting chamber, so that the sorting efficiency is further improved. improves.

  According to the invention, the fall prevention member is constituted by a fall prevention plate, and the removal body that rotates on the fall prevention plate in accordance with the rotational drive of the handling cylinder is provided on the lower end side of the handling cylinder. The scraps accumulated on the plate can be swept out to the outside of the handling chamber by the removal body, and the removal body is rotated by using the rotational drive of the handling cylinder, so that the configuration of the removal body can be simplified.

It is a side view of the threshing device to which the present invention is applied. It is principal part side sectional drawing of the threshing apparatus to which this invention is applied. It is a principal part top view of the threshing apparatus to which this invention is applied. It is a principal part front view of the threshing apparatus to which this invention is applied. It is the side view which showed the structure of the 2nd helix. It is a principal part top view of the threshing part which shows the structure of the other Example of a guide mechanism. (A), (B) is the principal part top view and principal part side view of a threshing part which show the structure of the other Example of a guide mechanism. It is a principal part top view of the threshing part which shows the structure of the other Example of a guide mechanism.

Hereinafter, embodiments of the present invention will be described based on illustrated examples.
1 thru | or 4 are the side view, principal part sectional drawing, principal part top view, and principal part front view of the threshing apparatus to which this invention is applied. The threshing apparatus 1 shown in the figure is installed on the left side in the forward direction (hereinafter simply referred to as “left”) of the combine traveling machine body, and threshs the cereal grains in the field that have been harvested by a preprocessing unit that is connected to the front of the traveling machine body so as to be movable up and down. Configured to process.

  The threshing apparatus 1 includes a handling chamber 2 in which a cylindrical handling cylinder is supported so as to be rotatable about an axis in the vertical direction, and a processing object that is disposed below the handling chamber 2 and falls from the handling chamber 2. And a feed chain (conveying body) 4 that receives the stock of cereal rice cake and conveys it backward on the front end side of the traveling machine body.

  And the cereal that has been harvested by the pre-processing unit of the above-mentioned combine and transported to the front end side of the traveling machine body is passed to the feed chain 4, the stock is sandwiched and the tip is inserted into the handling chamber, It is conveyed backward. The cereal grains conveyed rearward by the feed chain 4 are threshed by a handling process by a handling cylinder 6 that is rotationally driven in the handling chamber 2, and become a scouring cutter 7 on the rear end side of the traveling machine body. In addition to being discharged outside the machine after being cut in step, the processed material that has been handled falls down into the sorting chamber 3. The processed material falling into the sorting chamber 3 is sorted into grains such as straw and other kinds of sawdust, etc., and the sawdust is discharged outside the machine, and the grain is installed on the right side of the traveling machine body. Housed in a Glen tank.

  The sorting chamber 3 is formed between a pair of left and right plate-like side frames 8, 8 that face each other in a parallel state, and in this sorting chamber 3, a sorting body 9 in the front-rear direction for sorting a processed material, A tang fan 11 that raises the sorting air obliquely upward and rearward in the sorting chamber 3, a first helix 12 in the left-right direction disposed near the center in the front-rear direction in the sorting chamber 3, and the rear of the first helix 12 No. 2 spiral 13 is provided. Incidentally, the side frame 8 constitutes a part of the frame of the threshing device, and the rear of the sorting chamber 3 is opened to discharge the sawdust and the like outside the machine. Incidentally, the sorting body 9 may be configured to be capable of swinging and sorting by supporting it so as to swing in the front-rear direction.

  The processed material falling from the upper handling chamber 2 is the grain that falls to the first spiral 12 side with little influence of the sorting wind and the second thing that is slightly affected by the sorting wind. It is wind-selected to the second thing falling to the spiral 13 side and the above-mentioned sawdust blown up to the rear upper side of the sorting chamber 3 under the influence of the sorting wind. Incidentally, from the above configuration, the upper side of the rear end portion in the sorting chamber 3 is a dust discharge portion where dust and the like are blown up.

  Incidentally, as shown in the side view of the second spiral in FIG. 5, the second thing dropped on the second spiral 13 is split into two branches by a single graining process using the protrusions 16 provided around the axis. Grains that have been processed after infarction, etc., and selected after the single grain treatment, are sent to the Glen tank.

  As shown in FIG. 5, the second spiral is provided with a front partition plate 17 that covers the front upper side of the second spiral 13 and a rear partition plate 18 that covers the rear upper side of the second spiral 13. Bending portions 17a and 18a bent toward the second spiral 13 side are formed on the upper ends of the partition plates 17 and 18, respectively. With this configuration, it is possible to efficiently prevent spiked grains, sawdust, etc., which are processed into a single grain by the protrusion 16 of the second spiral 13 from jumping out of the second spiral 13.

  The feed chain 4 has a long ring shape in the front-rear direction and is configured to move backward on the upper side and move forward on the lower side. A holding body 20 in the front-rear direction is disposed above the feed chain 4. Has been. This clamping body 20 is supported in a state in which vertical movement is allowed and elastically biased toward the feed chain 4, and the stock is sandwiched between the feed chain 4 and the clamping body 20. The cereals are conveyed rearward along the handling chamber 2.

  That is, a transport path for cereals is formed between the feed chain 4 and the sandwiching body 20, and this transport path extends in a substantially horizontal direction, more specifically, slightly upwardly inclined toward the rear in the transport direction. It will be in the state. According to the above configuration, since the tooth handling is conveyed rearward along a direction substantially parallel to the conveying direction of the corn straw, compared with the case where the tooth handling moves in the crossing direction with respect to the conveying direction of the corn straw. Thus, the transportation of the cereals becomes smoother and the threshing performance is improved.

  Incidentally, an auxiliary transport body 19 is provided between the feed chain 4 and the handling cylinder 6 so as to extend in parallel with the feed chain 4 and assist the backward transportation of the cereal. The auxiliary transport body 19 has a long ring in the front-rear direction and moves rearward on the lower side, and is provided with tines 21 protruding from the upper side of the cereals on the transport path toward the cereal side at predetermined intervals. The tine 21 is configured to move backward in accordance with the drive of the feed chain 4 while supporting the cereal.

  The auxiliary transport body 19 supports the cereals that are transported rearward at a position close to the handling cylinder 6, and is configured to transport the culms while being locked by the tines 21 of the auxiliary transport body 19. Breakage of the cereal can be prevented by carrying it while securing the degree of freedom. Moreover, it is possible to prevent the posture of the cereal from being disturbed during the threshing operation by supporting the cereal with the feed chain 4 and the auxiliary transport body 19.

  Further, a rod-shaped auxiliary guide member 22 inclined obliquely downward and rearward is attached to the rear end side of the auxiliary transport body 19 (see FIG. 1). According to the auxiliary guide member 22, the waste after the threshing process is prevented from being wound around the tine 21 of the auxiliary transport body 19 or entering the sorting chamber 3, and the waste is smoothly removed. It can be guided to the cutter part 7 behind the feed chain 4.

  The handling chamber 2 includes a front wall 24 that covers the front of the above-described handling cylinder, a rear wall 26 that covers the rear, a top plate 25 that covers the top, and a side (right side) opposite to the feed chain. It is formed by a side wall 28 and the like to cover, and the lower side of the handling chamber 2 is opened so as to communicate with the sorting chamber 3. In addition, the side of the handling chamber 2 on the side of the feed chain 4 is opened so that the head side of the cereal with the stock held by the feed chain 4 can be inserted.

  A supply port in the left-right direction is formed in the central portion of the front wall 24 in the vertical direction, and the tip side of the cereal with the stock side sandwiched by the feed chain 4 is supplied into the handling chamber 2 through the supply port. The rear wall 26 is provided with a recess 27 for the passage of the cereals conveyed rearward from the feed chain 4 side end toward the barrel 6 side. The waste after the threshing process is discharged to the outside of the handling chamber 2 by the feed chain 4 through the discharge port 27 and conveyed to the cutter unit 7.

  The upper and lower ends of the discharge port 27 are formed with recesses 27 a and 27 a for allowing the tine 21 of the auxiliary transfer device 19 to pass through. The auxiliary transfer device 19 extends from the front to the rear of the handling chamber 2. It can be arranged.

  In addition, on the side wall 28 on the opposite side of the feed chain 4 (right side in the illustrated example) across the handling cylinder 6 of the handling chamber 2, the air flowing in the rotational direction is stabilized by the rotational drive of the handling cylinder 6, and A guide mechanism that prompts the fall of the threshing processed product is provided. The detailed configuration of the guide mechanism will be described later.

  Further, on the lower side of the handling cylinder 6 of the handling chamber 2, there is provided a hull fall prevention mechanism for preventing a broken wrinkle generated at the time of threshing from dropping to the upper sorting side of the sorting chamber 3. Details of the dredging fall prevention mechanism will be described later.

  In addition, a waste guide member 29 made of a round bar in the front-rear direction is provided on the rear side of the handling cylinder of the handling chamber 2, and the waste guide member 29 is arranged near the feed chain 4 in the left-right direction. And is inclined slightly upward in the transport direction (rear) along the slope of the transport path. With this configuration, the middle part of the waste that has been threshed in the handling chamber 2 and conveyed rearward by the feed chain 4 is supported from the lower side by the waste guide member 29, so that the waste is smoothly conveyed. Thus, it is possible to prevent the sawdust and waste from entering the sorting chamber 3.

  The handling cylinder 6 is pivotally supported so as to be rotatable about an axis in a state in which a rotating shaft 31 arranged at the axial center in the handling chamber 2 is oriented in a substantially vertical direction. Then, by transmitting the engine power to the rotating shaft 31, the handling cylinder 6 is rotationally driven on the feed chain 4 side so as to be in the opposite direction to the conveying direction of the cereal (clockwise in FIG. 3). Lowering processing is performed.

  A plurality of teeth 32A projecting outward in a V shape are provided on the outer periphery of the barrel 6. A plurality of teeth 32A are arranged adjacent to each other in parallel in the vertical direction parallel to the rotation shaft 31, thereby forming a comb-shaped teeth array 32 in which wedge-shaped peaks and valleys are alternately arranged. The tooth handling row 32 is uniformly installed in the circumferential direction of the handling barrel 6 at predetermined intervals.

  In addition, although this tooth treatment row | line | column 32 may be formed integrally or may be formed separately for every tooth treatment 32A, in the example shown in figure, it is integrally formed and adjacent pair of tooth treatment 32A. In each bottom portion of the valley formed by each other, an arc-shaped cutout portion 32B is formed so as to widen the interval between the bottom portions. In addition to this, each of the plurality of teeth 32A is configured such that the projecting end draws the same rotation locus in plan view when the handle 6 is driven to rotate.

  More specifically, each tooth treatment row 32 extends from the lower end of the outer periphery of the treatment barrel 6 upward to a midway portion (about one third of the upper side of the treatment barrel). In other words, the tooth treatment row 32 extends from the lower end of the treatment barrel 6 to the upper end position of the removal port 27 in a front view (see FIG. 4), and the tooth treatment line is located above the upper end of the removal port 27. Are not arranged. By the way, pressing the culm conveyed by the auxiliary transport body 19 from the upper side prevents the culm from being in an upper position than the tooth handling row 32.

  A transmission case 36 is fixed on the top plate 25 of the handling chamber 2, and a support bracket 37 fixed to the frame body of the threshing device 1 is disposed immediately below the transmission case 36 in the handling chamber 2. The upper part of the rotary shaft 31 is supported by the bearing 38 in the transmission case 36 and the lower part of the rotary shaft 31 is supported by the bearing 39 provided on the support bracket 37 so as to be rotatable about the axis. A shaft 31 is supported so as to be rotatable around the shaft.

  The transmission case 36 includes a driven bevel gear 41 that is attached to the upper end of the rotating shaft 31 and rotates integrally with the rotating shaft 31, and a main driving bevel gear 42 that always meshes with the driven bevel gear 41. The one end 42 is attached and fixed to the other end of the left and right drive shaft 43 protruding from the transmission case 36, and is configured to rotate integrally with the drive shaft 43.

  The one end of the drive shaft 43 is close to the upper end side of the side wall 28, and a drive pulley 44 that rotates integrally with the drive shaft 43 is attached. Power is transmitted from the engine disposed so as to be substantially adjacent to the side wall 28 to the drive pulley 44, whereby engine power is transmitted to the rotary shaft 31.

Next, the configuration of the guide mechanism will be described with reference to FIGS.
The guide mechanism is provided on the side wall 28 opposite to the feed chain 4 with the handling cylinder 6 of the handling chamber 2 interposed therebetween, and is bent along the handling cylinder in plan view, and the guide member A plurality of attached guide plates (drop facilitating means) 46, 47, 48, and a discharge port (opening) 49 for discharging the air guided by the guide member 50 from the rear wall 26 of the handling chamber 2, flow. And a guide body 51 that guides air, sawdust and the like to the discharge port 49.

  The guide member 50 is a plate-like member that is bent and formed in an arc shape along the shape of the handling cylinder in plan view and is attached to the side wall 28. In the illustrated example, the guide member 50 is located on the right side of the handling cylinder in plan view. A central guide surface 50b formed along the side wall 28 on the side, a front guide surface 50a bent toward the inside of the chamber 2 from the front end of the central guide surface 50b, and a rear end of the central guide surface 50b It is comprised from the back guide surface 50c bently formed inside the chamber 2 toward back. Thereby, the guide surface bent in the circular arc shape along the treatment cylinder right side by planar view is formed by the front guide surface 50a, the center guide surface 50b, and the back guide surface 50c. Incidentally, in the guide member 50, the guide surfaces 50a, 50b, and 50c may be formed as separate bodies, or the guide surfaces 50a, 50b, and 50c are integrally formed by a circular arc-like smooth bent surface in a plan view. It may be formed automatically.

  The guide surfaces 50a, 50b, and 50c are arranged with a predetermined distance shorter than or equal to the protruding width of the tooth handling 32A in a plan view between the rotation locus of the tip of the tooth handling 32A. Yes. More specifically, when the protrusion width of the tooth handling 32A is 1, the predetermined distance is configured to be about 0.5 to 1. With this configuration, the efficiency of the threshing process is improved by appropriately maintaining the distance between the tooth handling 32A and the guide surface.

  The guide plates 46, 47, 48 are attached to the front guide surface 50a side and inclined downward toward the rear, and attached to the central guide surface 50b side and inclined downward toward the rear. The second guide plate 47 and the third guide plate 48 attached to the rear guide surface 50c side and inclined downward toward the rear, each of the guide surfaces 50a, 50b, 50c in plan view. Extending toward the handle barrel 6 side and attached along the rotation locus of the tip of the handle teeth 32A.

  In the illustrated example, five first guide plates 46 and two second guide plates 47 are provided in the vertical direction. The third guide plate 48 is formed in an L-shaped cross section composed of a guide surface 48a and a mounting surface 48b longer than the first guide plate 46 and the second guide plate 47, and three third guide plates 48 are arranged side by side in the vertical direction. Each has an adjustment mechanism 52 that can adjust the vertical angle.

  The adjusting mechanism 52 is attached to the handling chamber 2 side so that the front end side of the third guide plate 48 serves as a rotation fulcrum, and the rear end side of the third guide plate 48 is drilled in the handling chamber 2 side. It is attached to the adjustment hole 53 by pin fixing or the like so as to be rotatable up and down. According to this configuration, the inclination angle of the third guide plate 48 attached so as to incline downward toward the rear can be adjusted according to the situation (see FIGS. 2 and 4).

  The discharge port 49 is provided on the rear wall 26 of the handling chamber 2 and on the right side (guide plate side) of the drainage port 27, and is formed over the vertical direction of the handling chamber 2. It is an air vent hole in the shape.

  The guide body 51 is a plate-like member that is provided at the end of the discharge port 49 on the side of the discharge port 27 (left side) and extends vertically from the discharge port 49. Each is formed to project. Specifically, the front end side of the guide body 51 extending inside the handling chamber 2 is bent toward the guide plate 46 side (right side) in a plan view, and the rotation locus of the tip of the tooth handling tip It is configured not to touch.

  According to the guide member 50 of the guide mechanism described above, the air flowing in the rotational direction of the barrel 6 caused by the rotation of the tooth handling row 32 as the barrel 6 rotates is supplied to the barrel 6. The air that flows toward the rear of the handle cylinder along the guide surfaces 50a, 50b, and 50c of the guide member 50 that is bent along the guide member 50 and flows to the rear end of the handle chamber 2 is handled from the discharge port 49 by the guide body 51. It is guided to be discharged out of the chamber 2.

  Therefore, since the air flowing in the chamber 2 is sequentially stably guided to the outside of the chamber 2 by the rotational drive of the cylinder 6, the flowing air is disturbed in the chamber 2 and the processed material is treated in the chamber 2. It can be prevented from splashing outside. That is, the guide member 50 on which the guide surfaces 50a, 50b, and 50c are formed functions as an air guide plate that guides air that flows along the rotation direction of the barrel.

  Further, according to the guide plates 46, 47, 48, when the cereals that have been transported into the handling chamber 2 by the feed chain 4 are handled and handled by the tooth handling 32A on the front side of the barrel 6 in particular, Even in the case where the processed product that has been threshed is flipped away to the side of each guide plate 46, 47, 48 with the momentum threshed from the cereal basket, each guide plate 46, which is inclined downward toward the rear, By being guided by 47 and 48, the momentum of the processed material is killed and the fall to the lower sorting chamber 3 is urged. That is, each guide plate 46, 47, 48 functions as a dust feed guide that promotes the fall of the processed material to the sorting chamber 3 side.

  At this time, since the third guide plate 48 can adjust the inclination of the downward inclination by the adjustment mechanism 52, it is possible to adjust the degree of promotion of the fall of the processed product.

Next, based on FIGS. 2 to 4, the configuration of the heel drop prevention mechanism will be described.
The heel drop prevention mechanism includes a support frame 56 that extends in the left-right direction to rotatably support the handling cylinder 2 on the lower end side of the rotating shaft 31 of the handling cylinder 2, and is supported on the support frame 56 and in plan view. A punching metal (falling prevention member) 57 provided toward the front side of the barrel 2 and an inclined plate 58 supported on the support frame 56 and provided toward the rear side of the barrel 2 in plan view. The removal body 59 is provided between the lower end of the cylinder 2 and the punching metal 57 and rotates integrally with the rotating shaft 31 of the handling cylinder 2.

  The punching metal 57 includes a plate-like member having a plurality of leakage holes (selection holes) 57 a, and one end of the plate-like punching metal 57 extends along the support frame 56 and the support frame 56. It is attached from the center of the barrel 2 toward the front side by being sandwiched by the long front holding member 61 (see FIG. 3). In other words, the punching metal 57 is configured to cover the front side of the sorting chamber 3, specifically, the front upper side of the first spiral 12 (see FIG. 2).

  The leakage hole 57a formed in the punching metal 57 is a circular punching hole formed in the plate-like member, and the chopped potatoes dropped from the cereal being transported are not dropped downward and are threshed. The processed material is formed in a size that allows it to fall to the sorting chamber 2 side. Moreover, the leakage hole 57a is formed uniformly in the same size on the whole punching metal 57, and according to the punching metal 57, the leaking hole 57a has almost the same leakage anywhere on the punching metal 57 due to the circular punching hole. It is configured to demonstrate its performance.

  The punching metal 57 may be a mesh member. Further, if the purpose is to prevent the fall of the basket into the sorting chamber, the sorting becomes worse. However, the fall preventing member may be replaced with a punching metal 57 and may be a plate-like member having no leakage hole 57a.

  The punching metal 57 includes a pair of guide surfaces 62 and 62 inclined inwardly toward the sorting chamber 3 from the lower end sides of the left and right walls of the handling chamber 2 and the sorting chamber from the lower end side of the front wall 24 of the handling chamber 3. 3 is arranged so as to be substantially horizontal at a height position where the guide surface 63 inclined rearward toward 3 is formed. Between the front end side of the punching metal 57 and the guide surface 63, a processed material or the like is disposed. A falling gap is formed.

  One end side of the inclined plate 58 is sandwiched between the support frame 56 and a longitudinal rear holding member 64 along the support frame 56, so that the inclined plate 58 extends in a substantially horizontal direction from the center of the handling cylinder 2 to the rear. Installed as done. The middle part of the inclined plate 58 is bent downward so that the rear side of the inclined plate 58 becomes the inclined surface 58a inclined downward toward the rear. Specifically, the middle part of the inclined plate 58 is bent downward at a position ahead of the rotation trajectory of the handling cylinder 6 in plan view (see FIGS. 2 and 3).

  As a result, a communication port 66 communicating with the rear side of the sorting chamber 3 is formed between the inclined surface 58a of the inclined plate and the side of the rear chamber wall 26. From the inclined surface 58a that forms the communication port, a communication port 66 is formed. The sorter 9 is arranged rearward. In other words, the communication port 66 is formed on the upper side of the sorting body 9 between the first spiral 12 and the second spiral 13 on the lower sorting side in the sorting chamber (see FIG. 2). Further, the communication port 66 is formed wider by bending the inclined plate 58 at a front position than the rotation locus of the handling cylinder 6 in plan view, and the rotation locus of the handling cylinder 6 and the tooth handling 32A in plan view. Since the wrapping is performed, it is possible to more reliably drop the processed material that is accompanied by the rotation of the handling cylinder 6 to the communication port 66.

  The removal body 59 is a rod-like member attached to the lower end side of the handling cylinder 6 so that the center side integrally rotates with the rotating shaft 31 of the handling cylinder 6, and the lower side (punching metal 57 side) of the rod-like member. Is provided with a brush portion 67. With this configuration, the punching metal 57 provided substantially horizontally on the same plane and the removal body 59 integrally rotate with the handle cylinder 6 on the upper surface side of the inclined plate 58 on the front side of the bent portion, whereby the brush portion 67 is formed. The upper surface side of the plate-like punching metal 57 and the upper surface side of the inclined plate 58 in front of the bent portion can be swept.

  According to the above-described culm fall prevention mechanism, when the cereals are threshed, non-sorted items other than the grains, such as chopped grains that are cut by the comb-shaped teeth and detached from the cereal, are punched metal 57. Since it is received above, it is possible to prevent the uncut material such as cuttings from falling to the upper sorting side (front side) of the sorting chamber 3 and clogging the sorting chamber or reducing the sorting efficiency. In addition, the processed material such as grain is allowed to fall to the sorting chamber 3 side while preventing the cuttings and the like from dropping from the punching metal 57 by the large number of leakage holes 57a formed in the punching metal 57. Therefore, sorting efficiency is improved.

  In addition, since cuttings including unprocessed material such as spiked grains falling on the punching metal 57 are swept toward the communication port 66 by the brush portion 67 of the removing body 59 that rotates integrally with the handling cylinder 6, The punched metal 57 and the inclined plate 58 can be prevented from being clogged with cuttings and the like, and the processed material such as the grains on the punching metal 57 is pressed against the punching metal 57 by the brush portion 67, whereby the processed material is processed. Can be dropped from the leakage hole 57a while making a single particle, so that the sorting efficiency is further improved. In other words, as for the unprocessed material such as the cut grain that has fallen on the punching metal 57, only the processed material that has been made into a single grain by the brush portion 67 on the punching metal 57 falls to the sorting chamber 2 side. The untreated material is transported around the handling cylinder toward the communication port 66 until it becomes a single grain. Thereby, the single granulation processing performance became stable and good.

  Further, according to this configuration, since it is not necessary to separately form a transmission structure for driving the removal body 59 to rotate, the removal body 59 that is driven to rotate can be provided easily and inexpensively.

  The brush portion 67 may be a rubber plate or an iron plate scraper in place of the brush portion 67 because the brush portion 67 only needs to be capable of sweeping off the cuts and the like on the punching metal 57 and the inclined plate 58. Further, the brush portion 67 may be in contact with the upper surface side of the punching metal 57 or may be non-contact as long as it can sweep the wrinkles on the punching metal 57.

  Next, points different from the above-described points will be described with reference to FIG. FIG. 6: is a principal part top view of the threshing part which shows the structure of the other Example of a guide mechanism. As shown in the figure, a buffer portion (fall promotion means) 71 having a surface formed in a wave shape is provided on the guide surface of the guide member 50 formed in an arc shape along the handling cylinder 6. The buffer portion 71 may extend in an arc shape along the side wall 28 to the discharge port 49 side.

  According to this configuration, as shown in FIG. 6, when the cereals conveyed by the feed chain 4 are threshed by the tooth handling on the front side of the handling cylinder, the processed material is rotated in the rotational direction of the handling cylinder 6 (the handling cylinder). Even if it is blown vigorously to the right front side), the treated object is made to collide with the wave-like buffer portion 71 as described above, thereby weakening the momentum of the treated object and promoting the fall. It can be smoothly guided to the sorting room 3 side.

  Next, points different from the above-described points will be described with reference to FIG. FIGS. 7A and 7B are a plan view and a side view of main parts of a threshing unit showing the configuration of another embodiment of the guide mechanism. As shown in the figure, the guide mechanism provided with the fall accelerating means is formed on the guide surface of the guide member 50 formed in an arc shape along the handling cylinder 6 and formed in an arc shape in plan view along the handling cylinder 6. A belt-like rectifying plate 72 bent downward from the right side of the cylinder to the rear is provided, and a partition 73 that guides the processed material to the sorting chamber 3 side at a position facing the rear end side of the rectifying plate 72. Was provided. At this time, the discharge port 49 is arranged between the rear end of the current plate 72 and the partition portion 73.

  According to this configuration, the processed product that has been threshed by the tooth handling 32 </ b> A and blown off is guided along the flow straightening plate 72, so that the flow of the processed material in the treatment chamber 2 is improved and the flow straightening plate 72. Thus, the processed material guided to the rear of the handling chamber 2 collides with the partition portion 73, and the momentum is weakened and falls toward the sorting chamber 3. Therefore, it can prevent that the processed material skipped by the threshing process is scattered outside the handling chamber.

  Next, points different from the above-described points will be described with reference to FIG. FIG. 8: is a principal part top view of the threshing part which shows the structure of the other Example of a guide mechanism. As shown in the figure, a rubber body 74, which is a resilient cushioning material, is provided as a guide mechanism that constitutes a fall promoting means for promoting the fall of the processed product so as to cover the periphery of the handling cylinder. According to the rubber body 74, it is possible to eliminate the momentum of the processed material that is blown off during the threshing process, and to prevent the grains and the like from being damaged.

2 Handling room 4 Feed chain (conveyance body)
6 Handle cylinder 31 Rotating shaft 32A Teeth handle 57 Punching metal (fall prevention member, fall prevention plate)
57a Leakage hole (sorting hole)
59 Remover

Claims (1)

The barrel (6) that is driven to rotate around the vertical rotation axis (31) in the chamber (2), and the head side of the cereal is held with the tip pointed to the barrel (6) side. And a plurality of teeth (32A) having a comb shape by being arranged in parallel along the axial direction of the handling cylinder (6). In the threshing apparatus provided on the side and threshing by the handling cylinder (6) that rotates the cereal bowl conveyed by the conveying body (4), the sorting chamber (3) for sorting the grains from the threshing processed product A flat fall prevention plate (57) is provided directly below the handling barrel (6) and prevents at least a part of non-sorted items other than the grains that leave the cereal during the threshing process from falling. The fall prevention plate (57) is arranged on the upper side of the sorting room (2) in a plan view, and leaks the grain. A removing hole (59) which is formed with a permissible sorting hole (57a) and rotates on the fall prevention plate (57) at the lower end side of the handling cylinder (6) as the handling cylinder (6) is driven to rotate. Provided with a communication port (66) arranged on the lower sorting side of the handling chamber (2) in plan view and communicating with the sorting chamber (3) side, and by the rotational drive of the removal body (59), A threshing device for transferring a processed product that does not fall from the fall prevention plate (57) to the side of the communication port (66) that wraps with the rotation trajectory of the removal body (59) in plan view, and dropping it to the sorting chamber (3) side .

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