JP2011024461A - Combine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine which prevents the husking and being pulverized of tailings and simultaneously grading grains. <P>SOLUTION: The combine has a retreating device 59 for retreating the tailings on the conveying end side of a tailings returning device 58, 160 for returning the tailings to a threshing device 5 after threshed and graded. The lower portion of the retreating device 59 communicates with the threshing device 5 through a tailings-releasing portion 215 arranged below the rotation shaft 158 of a threshing cylinder 51 in the threshing device 5. The lower portion of the retreating device 59 is connected to the rear upper side of the tailings-releasing portion 215. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a combine for threshing a harvested cereal and selecting and collecting fine grains from the cereal.

  Conventionally, a combine harvester harvests a traveling machine body on which an engine is mounted, a traveling crawler as a left and right traveling unit that supports the traveling machine body, a driving unit having a steering handle and a driving seat, and an uncut grain culm in a field. A reaping device and a threshing device for threshing the harvested cereals are provided, and are configured to continuously harvest and thresh uncut cereals in the field and collect the grains.

  In the above-described conventional combine, the second product (grains with branches, grain cuts, etc.) taken out from the swing sorter by the second conveyor is returned to the swing sorter via the reduction cylinder. It is configured to (return). A configuration is also well known in which a reprocessing device is arranged on the feed end side of the reducing cylinder, and the second product is reprocessed by the reprocessing device and then returned to the swing sorter (for example, Patent Document 1).

  In the structure of the said patent document 1, the side of the threshing device is erected on the side of the threshing device, and the cerealing cylinder for taking out the first thing (the fine grain after the threshing) from the first conveyor below. In addition, a reduction cylinder is connected to the feed terminal end side of the second conveyor disposed behind the first conveyor on the lower rear side of the swing sorter. The reduction cylinder is arranged so as to extend upward and forward from the rear of the threshing cylinder on the side of the threshing device on the side where the cerealing cylinder is arranged. Accordingly, the whipping cylinder and the reduction cylinder cross each other in a side view. The reprocessing device extends in the left-right width direction, and the reprocessing cylinder is disposed in the reprocessing device so as to be rotatable around a longitudinal axis.

JP 2007-111057 A

  By the way, in the configuration of Patent Document 1, the feeding and dispersion of the second object returned from the reprocessing apparatus is mainly performed by the swinging motion of the swing sorting board. Due to the relationship between the opening direction of the reprocessing apparatus and the rotation direction of the reprocessing cylinder, the rotation of the reprocessing cylinder does not contribute much to dispersing the second object on the swing sorter. For this reason, the second item from the reprocessing device tends to be biased directly below the discharge port of the reprocessing device. Moreover, the threshing that has been threshed by the handling cylinder of the threshing device is more likely to fall to a side closer to the rotation downstream side of the handling cylinder than to the left and right center of the swing sorter. Therefore, threshing and second deposits tend to concentrate and accumulate on one side of the rocking sorter near the rotation downstream side of the handling cylinder (near the discharge port), and threshing and no. There was a risk that the sorting processing ability of the product was reduced, leading to third loss and poor sorting.

  Therefore, the present invention has a technical problem to provide a combine that improves the current situation as described above.

  Invention of Claim 1 is a combine which has the reprocessing apparatus for reprocessing the said 2nd thing in the feed terminal side of the 2nd reduction | restoration apparatus which returns the 2nd thing after the threshing selection to a threshing apparatus, The lower part of the reprocessing device communicates with the threshing device via a second thing discharge portion located below the rotation axis of the handling cylinder in the threshing device, and the second thing discharge portion The lower part of the reprocessing device is connected to the rear upper side.

  According to a second aspect of the present invention, in the combine according to the first aspect, the cerealing device for conveying the first thing after the threshing selection to the Glen tank is arranged in front of the second reduction device in a posture extending vertically. And the outer shape of the second thing discharge part is formed in a funnel shape spreading obliquely downwards forward, and is inclined so as to approach one side wall of the threshing device as it goes forward and downward, The discharge part is arranged so as to partially overlap the longitudinal midway part of the cerealing device in a side view.

  According to a third aspect of the present invention, in the combine according to the first or second aspect, the front end side of the discharge port in the second product discharge portion is located on the feed pan of the threshing device in side view, while the release The rear end side of the outlet is located on the chaff sheave of the threshing device.

  According to invention of Claim 1, it is a combine which has the reprocessing apparatus for reprocessing the said 2nd thing on the feed terminal side of the 2nd reduction | restoration apparatus which returns the 2nd thing after the threshing selection to a threshing apparatus. The lower part of the reprocessing device communicates with the threshing device via a second thing discharging portion located below the rotation shaft of the handling cylinder in the threshing device, and the second thing discharging portion. Since the lower part of the reprocessing device is connected to the rear upper side, the reprocessed (rethreshing) second thing is made difficult to collide with the handling cylinder or the like, from the rotating shaft of the handling cylinder. From a low position, it will be fed into the threshing device. For this reason, there is an effect that the sorting process can be executed while suppressing the deflation and pulverization of the processed second product due to the collision with the handling cylinder or the like.

  According to invention of Claim 2, in the combine described in Claim 1, the cerealing device for conveying the first thing after the threshing selection to the Glen tank is disposed in front of the second reduction device in a vertically extending posture. The outer shape of the second thing discharge part is formed in a funnel shape spreading obliquely downwards forward, and is inclined so as to approach one side wall of the threshing device as it goes forward and downward, Since the product discharge part is arranged so as to partially overlap with the longitudinal middle part of the cerealing device in a side view, the second product discharge part that is formed narrower in the left-right width as it goes forward is the threshing device. It extends to the front using the space between the cerealing device and the cerealing device. For this reason, there exists an effect that the processed 2nd thing can be widely disperse | distributed in the said threshing apparatus, and can be discharge | released. Further, since the second thing discharge part is inclined so as to approach the threshing device as it goes downward, the second thing that has been processed smoothly from the lower part of the reprocessing device via the second thing discharge part. There is also an advantage that can be guided to fall.

  According to the invention of claim 3, in the combine described in claim 1 or 2, the front end side of the discharge port in the second product discharge part is located on the feed pan of the threshing device in side view, Since the rear end side of the discharge port is located on the chaff sheave of the threshing device, the discharge port of the second discharge unit opens widely on one side wall of the threshing device, and the second item The processed second product can be efficiently guided and discharged from the discharge port of the discharge portion toward the feed pan. Therefore, it is possible to secure a sufficient distance to move the processed second product while being sorted in the threshing device, and to improve the combine sorting ability.

It is a left view of the combine for 4 line cutting. It is a right view of a combine. It is a top view of a combine. It is a front view of a combine. It is a power transmission system diagram of a combine. It is left side sectional drawing of a threshing apparatus. It is an expanded left side sectional view of the threshing device lower part. It is front sectional drawing of a threshing apparatus. It is an expanded front sectional view which shows the relationship between a threshing apparatus and a reprocessing apparatus. It is an expansion left side sectional view showing the relation between a threshing device and a reprocessing device. It is an expansion right view of a threshing apparatus. It is an expanded plane sectional view which shows the relationship between a threshing apparatus and a reprocessing apparatus. (A) is a partially cutaway enlarged bottom view showing the drive structure of the swing sorter, and (b) is a side cross-sectional view taken along the line bb of (a).

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following description, the left side in the forward direction of the traveling machine body 1 is simply referred to as the left side, and the right side in the forward direction is also simply referred to as the right side.

(1). First, the overall structure of the combine will be described mainly with reference to FIGS. As shown in FIGS. 1 to 4, the combine according to the embodiment includes a traveling machine body 1 supported by a pair of left and right traveling crawlers 2 (traveling portions). At the front part of the traveling machine body 1, a four-row mowing device 3 for mowing cereals is mounted by a single-acting hoisting hydraulic cylinder 4 so as to be adjustable up and down around the mowing pivot fulcrum shaft 4a. . A threshing device 5 having a feed chain 6 and a grain tank 7 for storing grain after threshing are mounted on the traveling machine body 1 side by side. In addition, the threshing apparatus 5 is arrange | positioned at the left side toward the advancing direction of the traveling body 1, and the Glen tank 7 is arrange | positioned at the right side toward the advancing direction of the traveling body 1 (refer FIG. 3).

  A discharge auger 8 for discharging the grains in the grain tank 7 from the rear to the top of the grain tank 7 is provided. Centering on the vertical auger 8a of the discharge auger 8, the front part of the glen tank 7 can be rotated to the side of the machine body. A driving unit 10 is provided in front of the Glen tank 7 and on the right front of the traveling machine body 1. The driving unit 10 includes an operation device including a step 10a on which an operator gets on, a driver's seat 10b, a steering handle 10c, various operation levers, switches, and the like. An engine 20 as a power source is disposed at a location below the driver's seat 10b in the traveling machine body 1. A mission case 19 is disposed in front of the engine 20 and between the traveling crawlers 2 for appropriately shifting the power from the engine 20 and transmitting it to the traveling crawlers 2.

  As shown in FIGS. 1 and 2, left and right track frames 21 are arranged on the lower surface side of the traveling machine body 1. The track frame 21 includes a drive sprocket 22 that transmits the power of the engine 20 to the traveling crawler 2, a tension roller 23 that maintains the tension of the traveling crawler 2, and a plurality of track rollers that hold the ground side of the traveling crawler 2 in a grounded state. 24 is provided. The driving sprocket 22 supports the front side of the traveling crawler 2, the tension roller 23 supports the rear side of the traveling crawler 2, and the track roller 24 supports the grounding side of the traveling crawler 2.

  As shown in FIG. 1 to FIG. 3, the reaping device 3 includes a four-row culm pulling device 31 that causes uncut cereals in the field and a clipper-type cutting device that cuts the stock of uncut cereals in the field. A cutting blade device 32 and a culm transport device 33 that transports the chopped culm from the culm pulling device 31 to the front end (feed start end side) of the feed chain 6 are provided. While driving the traveling crawler 2 with the engine 20 and moving in the field, the reaping device 3 is driven to continuously shave the uncut grain culm on the field. In this case, the cereal pulling device 31 causes uncut cereals in the field, the cutting blade device 32 cuts the stock of the uncut cereal, and the cereal pulling device 31 cuts the harvested cereal at the front end of the feed chain 6. The kite is transported. In addition, in front of the lower part of the cereal habit raising device 31, a weeding body 38a for 4 ridges for weeding uncut cereal cereals in the field is projected.

  In the threshing device 5, a handling cylinder 51 for threshing threshing, an oscillating sorting board 52 that sorts threshing falling below the handling cylinder 51, and a tang fan 53 that supplies sorting wind to the oscillating sorting board 52. And a dust exhaust fan 61 that discharges dust at the rear of the swing sorter 52 to the outside of the apparatus. A crimp net 60 that divides the handling cylinder 51 and the swing sorter 52 is stretched below the handling cylinder 51. The stocker side of the cereals conveyed from the reaping device 3 by the cereal conveying device 33 is inherited by the feed chain 6 and is nipped and conveyed. Then, the tip side of the cereal is carried into the handling chamber 173 (see FIG. 6 and FIG. 7 etc.) of the threshing device 5 and threshed by the handling cylinder 51. A handling cylinder rotating shaft 158 (see FIG. 5) for rotating the handling cylinder 51 extends along the conveying direction of the cereal by the feed chain 6 (in other words, the traveling direction of the traveling machine body 1). The handling cylinder 51 is configured to be driven to rotate in the clockwise direction around the handling cylinder rotation shaft 158 in FIGS. 8 and 9.

  As shown in FIGS. 1 and 2, an exhaust chain 62 is disposed on the rear end side (feed end side) of the feed chain 6. The waste passed through the feed chain 6 from the rear end side of the feed chain 6 (the grain from which the grain has been threshed) is discharged to the rear of the traveling machine body 1 in a long state, or the rear side of the threshing device 5 After being cut to a suitable length by the waste cutter 63 provided at the front, the paper is discharged to the lower rear of the traveling machine body 1.

  On the lower side of the swing sorter 52, a first conveyor 55 for picking up the grain (first thing) sorted by the swing sorter 52, and grains such as grain, swarf, and branch-branch are mixed. A second conveyor 56 for taking out the second item is provided. In addition, from the front side in the forward direction of the traveling machine body 1, the first conveyor 55 and the second conveyor 56 are arranged in the order above the rear part of the traveling crawler 2 on the upper surface side of the traveling machine body 1 in a side view.

  The swing sorting board 52 is configured to swing-sort (specific gravity sort) the cereal grains that have fallen below the handling cylinder 51. The grain (first thing) that has fallen from the swing sorter 52 is removed from the grain by the sorting air from the Kara fan 53 and falls first onto the conveyor 55. In the first conveyor 55, the cerealing cylinder 57 extending in the vertical direction is connected to the terminal portion protruding outward from the right side wall 180 a (see FIGS. 8 and 9) near the grain tank 7 in the threshing device 5. Yes. The grain taken out first from the conveyor 55 is carried into the Glen tank 7 by the cereal conveyor 159 (see FIG. 5) in the cereal cylinder 57 and collected in the Glen tank 7. The whipping cylinder 57 and the whipping conveyor 159 constitute a whipping device that conveys the first thing after threshing and sorting to the glen tank 7.

  The rocking sorter 52 is configured to drop a second thing such as a grain with a branch stem on the second conveyor 56 by rocking sorting (specific gravity sorting). The second product taken out by the second conveyor 56 is returned to the upper surface side of the swing sorter 52 through the reduction conveyor 160 (see FIG. 5) in the reduction cylinder 58 and the reprocessing device 59 and is re-sorted. The Further, swarf, dust and the like during cerealing from the handling drum 51 are discharged from the rear portion of the traveling machine body 1 toward the field by the sorting air from the Kara fan 53 and the dust suction and exhaust action of the dust fan 61. . The reduction cylinder 58 and the reduction conveyor 160 constitute a second reduction device that returns the second product after the threshing selection to the threshing device 5.

(2). Next, the power transmission system of the combine will be described with reference to FIG. One of the power from the engine 20 is branched and transmitted in the two directions of the traveling crawler 2 (reaping device 3) and the threshing device 5. Other power from the engine 20 is transmitted toward the discharge auger 8. The branching power from the engine 20 toward the traveling crawler 2 is once transmitted to the mission case 19 via the pulley / belt transmission system. In this case, the branching power from the engine 20 is appropriately shifted in the mission case 19 and the like, and is output to the left and right drive sprockets 22 via the drive output shafts 151 protruding from the mission case 19 to the left and right. In the mission case 19, a cutting PTO shaft 152 protrudes separately from the drive output shaft 151. The shifting power transmitted from the transmission case 19 to the cutting PTO shaft 152 is cut by the cutting clutch 153 and then cut through the cutting input shaft 154 in the horizontally long cutting rotation fulcrum shaft 4a (see FIG. 1). It is transmitted to each of the devices 31 to 33 of the device 3. In this case, each of the devices 31 to 33 of the reaping device 3 is driven at a speed synchronized with the traveling speed (vehicle speed) of the traveling machine body 1.

  Of the power from the engine 20, the branching power toward the threshing device 5 is transmitted via the threshing clutch 155 to the red pepper fan shaft 156 for rotationally driving the red pepper fan 53. A part of the power transmitted to the Kara fan shaft 156 is transmitted to the cylinder input shaft 157 via the pulley / belt transmission system, and the cylinder rotation shaft 158 and the exhaust chain 62 are connected to the cylinder input shaft 157. Is transmitted to.

  Further, from the Kara fan shaft 156, the first conveyor 55, the cereal conveyor 159, the second conveyor 56, the reduction conveyor 160, the reprocessing drum 161, and the swing sorter 52 are swung through a pulley / belt transmission system. Power is also transmitted to the shaft 162, the dust removal shaft 163 of the dust removal fan 61, and the waste cutter 63. The branching power via the dust removal shaft 163 is transmitted to the feed chain 6 via the feed chain shaft 164.

  The power from the barrel input shaft 157 can be transmitted to the cutting input shaft 154 via a pouring clutch 165 that transmits a constant rotational force to the cutting device 3. That is, by directly transmitting the power from the engine 20 to the reaping device 3 without going through the mission case 19, the reaping device 3 is forcibly driven at a constant high speed regardless of whether the vehicle speed is fast or slow. Is possible.

  The power from the engine 20 toward the discharge auger 8 is transmitted through the Glen input gear mechanism 166 and the power interrupting auger clutch 167 to the bottom conveyor 168 in the Glen tank 7 and the vertical conveyor 169 in the vertical auger 8a in the discharge auger 8. Then, the power is transmitted to the discharge conveyor 171 in the horizontal auger in the discharge auger 8 through the transfer screw 170.

(3). Detailed structure of threshing apparatus Next, the detailed structure of the threshing apparatus 5 will be described with reference to FIGS. As described above, the threshing device 5 includes the handling cylinder 51, the swing sorter 52, the red pepper fan 53, and the dust exhaust fan 61. Above the rocking sorter 52 in the threshing device 5, a handling chamber 173 is provided that is partitioned by a front partition wall 174 and a rear partition wall 175. The handling cylinder 51 is located between the front and rear partition walls 174 and 175, and a handling cylinder rotating shaft 158 is rotatably supported by the partition walls 174 and 175. A feed port 176 is provided below the front partition wall 174 for feeding the tip of the harvested cereal rice bran in the feed chain 6. A waste outlet 177 through which the tip side of the waste is carried out is provided.

  A support frame 178 surrounding the substantially lower half of the handling cylinder 51 is attached to the inside of the handling chamber 173 far from the feed chain 6 (glen tank 7 side), and the crimp net 60 is stretched on the support frame 178. It is installed. The front / rear length of the support frame 178 is set to be shorter than the front / rear length of the handling chamber 173, that is, the arrangement interval of the front / rear partition walls 174, 175. The support frame 178 according to the embodiment is disposed in the handling chamber 173 in a state where the front portion is brought close to the front partition wall 174 side and the rear portion is separated from the rear partition wall 175 side. For this reason, an opening space opened rearward and downward is formed between the support frame 178 and the rear partition wall 175, and the opening space serves as a discharge port 177 at the rear portion of the handling chamber 173.

  In this case, the tip side of the harvested cereal rice cake held and conveyed by the feed chain 6 enters the handling chamber 173 from the supply port 176 located below the front partition wall 174, and is between the handling cylinder 51 and the crimp net 60. , And is sent out from the discharge port 177 located below the rear partition wall 175 toward the discharge chain 62.

  The swing sorter 52 located below the crimp net 60 is inclined forward and downward to the threshing machine casing 180 constituting the outer shape of the threshing device 5 through the swing shaft 162 and the pair of front and rear guide rails 181 and 182. It is arranged to be able to reciprocate backward and upward. Due to the turning action of the swing shaft 162 by the power from the engine 20, the swing sorter 52 reciprocates from the front obliquely downward to the rear obliquely upward.

  The swing sorter 52 includes a feed pan 183 located below the crimp net 60, a chaff sheave 184 located behind the feed pan 183, a grain sheave 185 located between the chaff sheave 184 and the first conveyor 55, and a chaff sheave 184. A Strollac 186 located behind is provided. A evacuation plate 187 is provided below the evacuation port 177 in the upper surface side of the chaff sheave 184. A plurality of sieve wires 188 for guiding threshing backward and to the center of the machine body are attached to the rear side of the waste plate 187.

  The threshing that has been threshed by the handling cylinder 51 and leaked from the crimp net 60 falls on the feed pan 183 of the reciprocating rocking sorter 52 and is subjected to rocking sorting (specific gravity sorting), while the rear chaff sheave 184 is placed. Sent to. The threshing on the chaff sheave 184 is subjected to oscillating sorting by the chaff sheave 184 itself and also receives a sorting wind flowing backward from the tang fan 53. Due to the interaction of such rocking and wind sorting, the threshing is separated into grains and swarf.

  In addition, the feed pan 183 of the embodiment is a plate-like shape inclined obliquely downward and rearward from the front right side (front part near the grain tank 7) to the rear left side (rear part near the feed chain 6). Due to the inclined surface, the threshing that has been threshed by the handling cylinder 51 rolls (spreads) on the feed pan 183 toward the feed chain 6.

  The first thing that has fallen from the chaff sheave 184 and the Glen sheave 185 is collected at the most conveyor 55 while removing the dust in the sorting air from the hot fan 53. The second item that cannot pass through the chaff sheave 184 and the Glen sheave 185 falls from the Strollac 186 and the like, and is collected at the position of the second conveyor 56 that is behind the first conveyor 55. Note that relatively light soot on the chaff sheave 184 is sucked into the dust exhaust fan 61 and discharged out of the machine from a suction discharge port 189 formed behind the dust exhaust fan 61. Further, relatively heavy sawdust on the chaff sheave 184 passes through the Strollac 186 and is discharged out of the machine from a swing discharge port 190 (so-called third port) formed at the rear of the swing sorting plate 52.

(4). Next, with reference to FIG. 7, the air path structure of the selected air supplied from the Chinese fan 53 to the chaff sheave 184 will be described. Here, the Kara fan 53 of the embodiment is configured to rotate in the counterclockwise direction in FIG. The fan case 200 of the Kara fan 53 includes a main sorting air passage 201 for supplying the sorting wind of the Kara fan 53 to the Glen sheave 185 and the first conveyor 55, a rear end side of the feed pan 183, and a front end side of the chaff sheave 184. Between the first pre-air path 202 for supplying the selection air of the tang fan 53 to the upper surface side of the chaff sheave 184 and the front of the chaff sheave 184 on the bottom side of the swing sorter 52 and the front end side of the chaff sheave 184 A second pre-air passage 203 is formed on the lower surface side for supplying the selection air of the tang fan 53.

  The main sorting air path 201 is formed so that the sorting wind from the Chinese fan 53 moves from the front lower side of the Glen sheave 185 toward the rear upper side via the upper surface side of the main wind direction body 204. Further, the above-described main sorting air passage 201 is formed so that the sorting air from the Kara fan 53 moves from the front side toward the rear side above the conveyor 231 via the lower surface side of the main wind direction body 204. Has been. That is, the grain and dust that fall from the grain sieve 185 to the conveyor 55 first are selected by the selection wind from the tang fan 53.

  In the first pre-air path 202, the sorting air from the Chinese fan 53 moves from the front side to the rear side on the upper side of the chaff sheave 184 via the upper surface side of the pre-winding body 205 provided on the swing sorting board 52. It is formed to do. That is, when the threshing that has fallen from the handling cylinder 51 to the upper surface of the feed pan 183 through the crimp net 60 falls from the rear end side of the feed pan 183 to the front end side of the chaff sheave 184, the sorting wind from the Chinese fan 53 Will be selected in the wind.

  The second pre-air path 203 is formed so that the sorting air from the Chinese fan 53 moves from the front side to the rear side on the upper side of the Glen pan 191 via the lower surface side of the pre-wind direction body 205. In other words, the second pre-air passage 203 is formed so that the sorting air from the tang fan 53 moves from the lower front side of the chaff sheave 184 toward the upper rear side of the chaff sheave 184. That is, the grain and dust falling from the chaff sheave 184 to the Glen pan 191 and Glen sheave 185 are selected by the sorting wind from the Kara fan 53.

  In this case, among the cereals that have moved to the upper surface of the chaff sheave 184, the swarf (lightweight material) on the lower layer side of the cereal that is close to the upper surface of the chaff sheave 184 is sent to the upper layer side by the sorting air and falls from the chaff sheave 184 The amount of scrap will be reduced. In addition, due to the specific gravity sorting action of the chaff sheave 184 and the wind selection of the sorting wind from the tang fan 53, the grain (heavy material) on the upper layer side of the threshing moves to the lower layer side and leaks early from the chaff sheave 184. To do. The specific gravity sorting action of the chaff sheave 184 is facilitated by the sorting wind from the tang fan 53 and improves its sorting capacity (sorting accuracy).

  In addition, the sorting air from the tang fan 53 supplied from the main sorting air passage 201, the first pre-air passage 202, and the second pre-air passage 203 is sucked into the dust exhaust fan 61 and from the suction discharge port 189. It is discharged from the swinging outlet 190. As a result, swarf and dust during threshing are discharged from the rear of the threshing machine casing 180 to the outside of the machine.

(5). Detailed Structure of Second Reduction Device and Reprocessing Device Next, the detailed structure of the second reduction device and the reprocessing device 59 will be described with reference to FIGS. The second reduction device including the reduction cylinder 58 and the reduction conveyor 160 is for returning the second product after the threshing selection to the threshing device 5. A reprocessing device 59 for reprocessing the second item is provided on the feed end side of the second reduction device (reduction cylinder 58). The reducing cylinder 58 is supported along the outer surface of one side wall (right side wall 180a in the embodiment) of the threshing machine casing 180 in a vertically long posture inclined slightly forward. The reduction conveyor 160 is rotatably disposed in the reduction cylinder 58. The feed start end side (lower end side) of the reduction conveyor 160 is connected to the feed end portion protruding outward from the right side wall 180a of the threshing machine basket 180 in the second conveyor 56 so that power can be transmitted.

  As shown in FIGS. 6 to 11, a transfer case 210 is disposed on the outer surface of the right side wall 180 a in the threshing machine housing 180. The lower end side of the reduction cylinder 58 is connected to the upward opening side of the transfer case 210. The reduction cylinder 58 and the whipping cylinder 57 are arranged between the threshing device 5 and the glen tank 7 so as to extend in the longitudinal direction in parallel in the front-rear direction. In this case, they are arranged in a posture extending in parallel with each other in the order of the whipping cylinder 57 and the reduction cylinder 58 from the front side in the forward direction of the traveling machine body 1.

  The right end side of the second shaft 211 in the second conveyor 56 and the lower end side of the reduction shaft 212 in the reduction conveyor 160 are rotatably supported by the transfer case 210 via bearing bearings (not shown). . The right end side of the second shaft 211 and the lower end side of the reduction shaft 212 are connected via a bevel gear mechanism 213. The feed end side (upper end side) of the reduction shaft 212 is rotatably supported by the case body 231 of the drive case 230 that covers the feed end face (upper end surface) of the reduction cylinder 58. The second thing that has leaked from the Strollac 186 to the second conveyor 56 is passed from the second conveyor 56 to the reduction conveyor 160. The second item inherited by the reducing conveyor 160 is inherited from the reducing conveyor 160 to the reprocessing cylinder 161 of the reprocessing device 59 by the scraping blade 214 provided on the feeding end side of the reducing shaft 212. Note that the reduction conveyor 160 of the embodiment is configured to be driven to rotate counterclockwise around the reduction shaft 212 in FIG.

  The feeding end side of the reduction cylinder 58 and the right side wall 180a of the threshing machine basket 180 are communicated with each other via the reprocessing device 59 and the second thing discharge unit 215. The reprocessing device 59 is attached to the feeding end side of the reduction cylinder 58 and is disposed between the cerealing cylinder 57 and the reduction cylinder 58 so as to overlap the region of the handling chamber 173 of the threshing device 5 in a side view. ing. The reprocessing device 59 includes a reprocessing case 216 constituting the outer shape thereof, and a reprocessing cylinder 161 disposed in the reprocessing case 216 so as to be rotatable around a vertical axis. As shown in FIGS. 10 and 11, the reprocessing shaft 217 that is the rotating shaft of the reprocessing cylinder 161 and the reducing shaft 212 that is the rotating shaft of the reducing conveyor 160 extend in parallel. The reprocessing cylinder 161 of the embodiment is driven to rotate counterclockwise around the reprocessing shaft 217 in FIG. 12 (the same rotation direction as the reducing conveyor 160) via a pulley / belt transmission mechanism 233 in the drive case 230. Is configured to do.

  A second thing discharge part 215 for guiding the treated second thing from the reprocessing case 216 into the threshing device 5 is connected to the lower side of the front part of the reprocessing case 216. As shown in detail in FIGS. 9, 10, and 12, the right side wall 180 a of the threshing machine housing 180 has a side surface at a position below the handle rotation shaft 158 and ahead of the rear frame 218 of the support frame 178. A communication hole 219 is formed to open up and down with respect to the lower surface of the handling cylinder 51 when viewed. The second thing discharge | release part 215 is connected with the outer surface (side surface by the side of the Glen tank 7) of the right side wall 180a so that the communication hole 219 of the right side wall 180a may be covered from the outer side.

  In other words, the rear upper side of the second discharge part 215 communicating with the lower side of the front part of the reprocessing case 216 serves as a processed second intake 215a. The discharge port 215b of the second object discharge portion 215 is connected to the crimp net 60 via a communication hole 219 that is lower than the barrel rotation shaft 158 and forward of the rear frame 218 of the support frame 178 in the right side wall 180a. And the upper surface side of the feed pan 183 (front side in the threshing device 5). Therefore, in the side view, the front end side of the discharge port 215 b in the second object discharge unit 215 is located on the feed pan 183. Further, in the side view, the rear end side of the discharge port 215 b in the second object discharge portion 215 is located on the chaff sheave 184. As is apparent from FIGS. 6 to 11, the second object discharge portion 215 itself is also located below the handle rotation shaft 158 and ahead of the rear frame 218 of the support frame 178.

  As shown in FIGS. 8 to 12, the outer shape of the second object discharge portion 215 is formed in a funnel shape that extends diagonally forward and downward, and approaches the right side wall 180 a of the threshing machine housing 180 as it goes forward and downward. So as to be inclined. And the second thing discharge | release part 215 is arrange | positioned so that it may overlap with the longitudinal middle part of the whipping cylinder 57 partially (wrapping) by side view. That is, the second thing discharge | release part 215 is located between the right side wall 180a of the threshing machine housing 180, and the longitudinal halfway part of the whipping cylinder 57. FIG.

  The second thing inherited by the reprocessing cylinder 161 is reprocessed (rethreshing) by the rotational drive of the reprocessing cylinder 161, and the back side of the crimp net 60 and the feed pan 183 through the second discharge unit 215. To the upper surface side (front side in the threshing device 5). In particular, in the embodiment, the outer shape of the second object discharge portion 215 is formed in a funnel shape that extends obliquely downwards forward, and is inclined so as to approach the right side wall 180a of the threshing machine housing 180 as it goes forward and downward. By rotating the reprocessing cylinder 161 counterclockwise around the reprocessing shaft 217 in FIG. 12, the processed second product is placed on the inclined inner surface of the second product discharger 215 near the milling cylinder 57. Along the feed pan 183 on the front side of the threshing machine housing 180, the feed pan 183 is discharged from the upper right side toward the upper left side (see FIG. 12). On the other hand, the threshing that has been threshed below the handling cylinder 51 that rotates clockwise in FIGS. 8 and 9 scatters from the upper left side of the feed pan 183 toward the upper right side.

  That is, the scattering direction of threshing from the handling cylinder 51 (the direction from the feed chain 6 side to the Glen tank 7 side) and the scattering direction of the second thing from the second thing discharge part 215 (from the Glen tank 7 side to the feed chain). 6) in the vicinity of the center of the left and right of the feed pan 183. Therefore, it is possible to disperse the cereal and the second thing by colliding with the left and right center part of the feed pan 183 and disperse them, and on the right side of the feed pan 183 (near the second thing discharge part 215). It can prevent threshing and accumulation of second crops. Further, the threshing and the second thing swinging and moving from the feed pan 183 to the chaff sheave 184 can be diffused (dispersed) in the left-right width direction of the chaff sheave 184, and the sorting efficiency can be improved.

  As shown in FIGS. 10 to 12, the reprocessing case 216 constituting the reprocessing device 59 has an upward opening cylinder (box) shape fastened to the right side wall 180 a of the threshing machine basket 180 with a bolt or the like from the outside. Is. The upward opening side of the reprocessing case 216 is covered with a drive case 230 that relays the rotational power of the reduction conveyor 160. A second object discharge portion 215 that covers the communication hole 219 of the right side wall 180a from the outside is fixed to the lower side of the front portion of the reprocessing case 216 by welding or the like. The rear upper side of the reprocessing case 216 is fastened with bolts and nuts to the open end side of the U-shaped cover 220 that surrounds the outer peripheral side of the scraping blade 214 on the feed end side of the reduction shaft 212. A cylindrical flange 221 that penetrates the reduction shaft 212 is fixed to the lower end side of the U-shaped cover 220 by welding or the like. A ring portion that protrudes downward from the cylindrical flange 221 is fitted on the feed end side of the reducing cylinder 58. The case main body 231 of the drive case 230 is bolted to the upper end side of the U-shaped cover 220 and the upper end side of the reprocessing case 216. A feed end portion of the reduction shaft 212 is rotatably supported at a portion of the case main body 231 on the U-shaped cover 220 side.

  As shown in FIGS. 10 and 12, the open end side of the U-shaped cover 220 on the feed end side of the reducing cylinder 58 and the rear upper side of the reprocessing case 216 communicate with each other. In other words, the opening end side of the U-shaped cover 220 and the rear upper side of the reprocessing case 216 are connected via the upper transfer port 222. The second item inherited by the reduction conveyor 160 is transferred into the reprocessing case 216 via the upper transfer port 222 in a reverse U-turn shape in a side view. As shown in FIG. 12, the peripheral walls 216a and 220a of the upper transfer port 222, that is, the peripheral walls 216a and 220a facing each other on the Glen tank 7 side in the reprocessing case 216 and the U-shaped cover 220 (along the second material flow direction). The portion) is abutted linearly in plan view so as to form the same plane along the common tangent line TL extending over the inner periphery of the reprocessing case 216 and the U-shaped cover 220. The combination of this configuration and the reprocessing cylinder 161 being driven to rotate counterclockwise in FIG. 12 allows the second item inherited by the reduction conveyor 58 to reduce the conveying force by the scraping blades 214 without much reduction. It will be smoothly transferred to the reprocessing case 216 side along the peripheral walls 216a and 220a of the upper transfer port 222.

  As shown in FIGS. 9, 10, and 12, on the inner surface of the reprocessing case 216 near the threshing device 5, the guide is inclined obliquely downward as it goes from the upstream side to the downstream side in the rotational direction of the reprocessing cylinder 161. The plate 241 is fixed by welding or the like. Moreover, the shielding plate 242 which closes the said part is provided in the site | part near the threshing device 5 (in the embodiment, the inner surface of the U-shaped cover 220 near the threshing device 5) in the upper transfer port 222 (see FIG. 12). . The second object fed to the upper side of the reprocessing case 216 falls while turning around the reprocessing cylinder 161 in the counterclockwise direction of FIG. 12, but on the inner surface side of the reprocessing case 216 near the threshing device 5. The second object that has turned around does not return to the upper transfer port 222 but hits the lower surface side of the guide plate 241 and is guided to the lower side of the reprocessing case 216. In addition, even if the second item passes through the location of the guide plate 241, the presence of the shielding plate 242 at the upper transfer port 222 blocks the return of the second item to the reduction cylinder 58 (U-shaped cover 222) side. . Therefore, the presence of the guide plate 241 and the shielding plate 242 functions in a mutually complementary manner, and the second product once released from the reduction cylinder 58 (U-shaped cover 222) to the reprocessing case 216 side is returned to the reduction cylinder 58 side. Without returning, the drop can be guided smoothly and accurately from the upper side to the lower side of the reprocessing case 216.

  As shown in FIGS. 6 to 12, the reprocessing cylinder 161 for reprocessing (rethreshing) the second product includes a vertical reprocessing shaft 217 extending in parallel with the reduction shaft 212. The lower end side of the reprocessing shaft 217 is rotatably supported on the bottom plate of the reprocessing case 216. The upper end side of the reprocessing shaft 217 is rotatably supported by a portion of the case main body 231 of the drive case 230 on the reprocessing case 216 side. At least an upper part of the reprocessing shaft 217 is provided with a scraper plate 224 for preventing the second object (swarf etc.) from being wound around the reprocessing shaft 217. The scraper plate 224 of the embodiment extends from the upper inner surface to the lower inner surface of the reprocessing case 216 and is fitted to the reprocessing shaft 217 so as to rotate integrally. As apparent from FIG. 12, the length R of the scraper plate 224 in the radial direction (the length from the center of the reprocessing shaft 217 to the side edge outside the radius of the scraper plate 224) is a plan view of the reprocessing case 216. It is set to about half of the radius.

  With the above configuration, when the second product is sent to the reprocessing case 216 side through the upper transfer port 222, the space between the peripheral walls 216a and 220a of the upper transfer port 222 and the side end portion on the radially outer side of the scraper plate 224 is set. Since the second object is guided and thrown toward the gap, it is possible to reliably avoid the rotation of the scraper plate 224 from interfering with the inheritance of the second object. Therefore, the second item can be inherited in the reprocessing case 216 very smoothly. In addition, it is possible to suppress the winding and unloading of sawdust around the upper portion of the reprocessing cylinder 161 (the upper portion of the reprocessing shaft 217) from the relationship between the presence of the scraper plate 224 and the guide / injection direction of the second item.

  On the scraper plate 224 on the reprocessing shaft 217, a feed auger body 243 formed in a spiral shape, a plurality of second processing teeth 225 for stirring the second object inherited from the reduction conveyor 160, A plurality of (two in the embodiment) discharge vanes 226 for discharging and scattering the second item from the lower transfer port 223 of the reprocessing case 216 communicating with the intake port 215a of the second item discharge unit 215; Yes. A feeding auger body 243 is provided at a position facing the upper transfer port 222 in the scraper plate 224. A plurality of second processing teeth 225 are arranged radially at a position lower than the upper transfer port 222 in the scraper plate 224. Receiving teeth 227 are attached to the inner surface side of the reprocessing case 216 so as to pass between two sets of second processing teeth 225. That is, in the reprocessing case 216, as the reprocessing cylinder 161, a scraper plate 224, a single feed auger body 243, a plurality of second processing teeth 225, a plurality of receiving teeth 227, and two sheets The discharge vanes 226 are accommodated.

  In the embodiment shown in FIGS. 9 to 11, the group of the second processing tooth 225 and the receiving tooth 227 is located between the two transfer ports 222 and 223 in the reprocessing case 216. Two discharge blades 226 face the lower transfer port 223 of the reprocessing case 216. In addition, the vertical length Lu of the upper transfer port 222, the vertical length Ld of the lower transfer port 223, and the vertical length Lc between the transfer ports 222 and 223 are set to be approximately equal (Lu). ≈Ld≈Lc). Further, each receiving tooth 227 is provided integrally with the reprocessing case 216 so as to protrude to the outer surface side of the reprocessing case 216, and constitutes a strength member of the reprocessing case 216.

  The second object transferred into the reprocessing case 216 via the upper transfer port 222 by the scraping blade 214 of the reduction conveyor 160 falls from the upper side to the lower side of the reprocessing case 216, and the second processing tooth 97. It is reprocessed by the tooth receiving 100 (sagging of stabbed grains or degreasing of swarf). The processed second product sent to the lower side of the reprocessing case 216 is discharged from the lower transfer port 223 toward the inclined inner surface of the second product discharge unit 215 by the discharge blade 98.

  As shown in FIGS. 8 to 11, a drive case 230 is attached to the upper end side of the reducing cylinder 58 (U-shaped cover 220) and the upward opening side of the reprocessing case 216. The drive case 230 includes a plate-like case main body 231 and a case lid 232 that detachably covers the case main body 231. A pulley / belt transmission mechanism 233 for transmitting the rotational power of the reduction conveyor 160 to the reprocessing cylinder 161 is disposed on the case body 231.

  In the embodiment, a drive pulley 234 is fixed to a protruding end portion on the feed end side of the reduction shaft 212 that is pivotally supported by the case body 231. Similarly, a driven pulley 235 is fixed to a protruding end portion on the feed start end side of the reprocessing shaft 217 that is pivotally supported by the case main body 231. An endless belt 236 is wound around the both flat gears 234 and 235. The endless belt 236 is configured to adjust the tension with a tension roller 237. Due to the action of the pulley / belt transmission mechanism 233, the reprocessing cylinder 161 rotates in the counterclockwise direction around the reprocessing shaft 217 in FIG. 12 (the same rotation direction as the reducing conveyor 160) using the rotational power of the reducing conveyor 160. To drive. The case lid 232 is bolted to the case body 231 with the pulley / belt transmission mechanism 233 covered from above. If the case lid 232 is removed by loosening the bolt, the pulley / belt transmission mechanism 233 is exposed on the case body 231. The power transmission mechanism from the reduction conveyor 160 to the reprocessing cylinder 161 is not limited to the pulley / belt transmission mechanism 233 described above, and may be a sprocket / chain type or a gear type.

  According to the above configuration, when the reaped cereals in the field are reaped by the reaping device 3 and the reaped cereals supplied from the reaping device 3 are threshed by the threshing device 5, the threshing that has fallen from the threshing device 5 is removed. Then, sorting is performed by the swing sorter 52. The most refined particles selected by the swing sorter 52 are collected in the Glen tank 7 by the first conveyor 55. Further, when the mixture of grain and sawdust as the second product selected by the rocking sorter 52 falls onto the second conveyor 56, the second product is transferred from the second conveyor 56 to the reduction conveyor 160. Then, it is conveyed from the reduction conveyor 160 into the reprocessing case 216.

  The second thing taken into the inside of the reprocessing case 216 from the feed end side (upper end side) of the reducing conveyor 160 by the scraping blades 214 is reprocessed by the second processing teeth 225 and the receiving teeth 227 (sagging of the stabbed grains). And separation of the sawdust, etc.), the discharge blade 226 discharges the waste from the second discharge unit 215 to the upper surface of the feed pan 183, and the sorting is performed again by the swing sorter 52. Therefore, the grain remaining in the second item first falls on the conveyor 55 and then is carried into the Glen tank 7. Further, the sawdust in the second item is discharged out of the machine from the suction discharge port 189 or the swing discharge port 190 of the dust discharge fan 61 through the upper surface of the chaff sheave 184.

  In addition, the second conveyor 56, the reduction conveyor 160, and the reprocessing cylinder 161 always rotate in conjunction with each other, but their rotational speeds are different. In the embodiment, the reduction conveyor 160 is rotated at a higher speed than the second conveyor 56, and the reprocessing cylinder 161 is rotated at a higher speed than the reduction conveyor 160. That is, the conveyance amount per unit time of the reduction conveyor 160 is made larger than the conveyance amount per unit time of the second conveyor 56, and the conveyance per unit time of the reprocessing cylinder 161 is larger than the conveyance amount per unit time of the reduction conveyor 160. By increasing the amount, it is possible to prevent clogging of the second item during the conveyance by the reduction conveyor 160 and the reprocessing cylinder 161.

(6). Next, the drive structure of the swing sorter 52 will be described with reference to FIGS. 13 (a) and 13 (b). As shown in FIG. 13A, a pair of left and right support boss bodies 251 are bolted to the rear lower surface side of the swing sorter plate 52 in a posture protruding downward. A guide roller 253 is rotatably provided on one end side (left and right outer sides) of a lateral roller shaft 252 that is inserted and fixed to a boss portion of each support boss body 251. The left and right guide rollers 253 are supported by the corresponding rear guide rail 182 so as to be able to roll. The other end side (right and left inner sides) of each roller shaft 252 is rotatably supported on one end side in the front-rear direction of the swing link 254 via a bearing member (not shown). On the other end side of the swing link 254 in the front-rear direction, a longitudinal midway portion (a reciprocating shaft portion 162y described later) of the swing shaft 162 is rotatably supported via a bearing member 255.

  The oscillating shaft 162 is for converting its own rotational motion into the reciprocating motion of the oscillating sorter 52, and is mounted on the left and right side walls 180a and 180b of the threshing machine housing 180 (in a doubly supported beam shape). Supported). The swing shaft 162 of the embodiment includes a first rotating shaft portion 162x supported by the left side wall 180b of the threshing machine housing 180, a second rotating shaft portion 162z supported by the right side wall 180a of the threshing device housing 180, and both It is comprised by the reciprocating shaft part 162y which connects a rotating shaft part. As shown in FIG. 13, the shaft centers (rotation centers) of the two rotation shaft portions 162x and 162z are positioned on the same axis. The shaft center of the reciprocating shaft portion 162y is extended in a substantially parallel shape while being eccentric with respect to the shaft center (rotation center) of both the rotating shaft portions 162x and 162z. A drive input for receiving rotational power from the Kara fan shaft 156 via a transmission belt 257 is provided on the projecting end side (a support shaft portion 162x1 described later) projecting outward from the threshing machine housing 180 in the first rotation shaft portion 162x. A pulley 256 is fixed.

  Each rotating shaft portion 162x (162z) is configured by a supporting shaft portion 162x1 (162z1) serving as a rotation center and a boss portion 162x2 (162z2) integrally connected thereto. The left and right tip sides of the reciprocating shaft portion 162y are inserted into each boss portion 162x2 (162z2). The boss portion 162x2 of the first rotating shaft portion 162x and the tip end side of the reciprocating shaft portion 162y are detachably connected by a key 258 and a pin 259. The boss portion 162z2 of the second rotating shaft portion 162z is formed with a slit 260 (notch groove) communicating with the boss hole of the boss portion. The second rotating shaft portion 162z and the reciprocating shaft portion 162y are connected so as not to be detached by welding using the slit 260 in a state where the tip end side of the reciprocating shaft portion 162y is inserted into the boss portion 162z2 (FIG. 13 ( a) In (b), the weld is indicated by w). Therefore, the rocking shaft 162 of the embodiment is configured to be separable into two members by a set of the first rotating shaft portion 162x and the reciprocating shaft portion 162y and the second rotating shaft portion 162z. Consideration is given to the ease of separation of the shaft 162. In this case, for example, there is an advantage that maintenance work such as replacement of the bearing member 255 that pivotally supports the swing shaft 162 is easily performed.

  When the rotary shafts 162x and 162z are rotated on the same axis by the rotational power from the fan shaft 156 via the drive input pulley 256, the reciprocating shaft 162y is circularly moved around the axis of the rotary shafts 162x and 162z. To do. The circular motion of the reciprocating shaft portion 162y is converted into a reciprocating motion along the rear guide rails 182 of the both supporting boss bodies 251 via both swing links 254. As a result, the swing sorter 52 reciprocates (swings) from the front diagonally downward to the rear diagonally upward.

(7). Summary As is clear from the above description and FIGS. 6 and 10 to 12, the cerealing devices 57 and 159 for conveying the first thing after the threshing selection to the Glen tank 7 and the second thing after the threshing selection are threshed. And a second reduction device 58 and 160 for returning to the device 5, and a combiner having a reprocessing device 59 for reprocessing the second product on the feed end side of the second reduction device 58 and 160. The threshing devices 57 and 159 and the second reduction devices 58 and 160 are connected to the threshing devices 57 and 159 and the second reduction device between the threshing device 5 and the Glen tank 7. 58 and 160 are arranged in the front-and-rear order and vertically extended, and between the cerealing devices 57 and 159 and the second reduction devices 58 and 160, the handling chamber 173 of the threshing device 5 is seen in a side view. Position the reprocessing device 59 to overlap the area. Therefore, the occupied space in the left-right width direction of the cerealing devices 57 and 159, the second reduction devices 58 and 160, and the reprocessing device 59 can be reduced, and between the threshing device 5 and the grain tank 7 can be reduced. Thus, the cerealing devices 57 and 159, the second reduction devices 58 and 160, and the reprocessing device 59 can be arranged in a compact manner. For this reason, the occupied space in the left-right width direction of the threshing device 5 and the grain tank 7 can be expanded without enlarging the left-right width direction of the combine, and the threshing capacity and grain storage can be achieved without increasing the size of the combine. There is an effect that the ability can be improved.

  In addition, as described above, the reprocessing device 59 is overlapped between the cerealing devices 57 and 159 and the second reduction devices 58 and 160 so as to overlap the area of the handling chamber 173 of the threshing device 5 in a side view. Since it is located, the re-processed (re-threshing) second thing can be smoothly returned into the handling chamber 173 of the threshing device 5 without being scattered randomly. Therefore, it is possible to secure a sufficient distance for the processed second product to move while being sorted in the threshing device 5, and it is possible to contribute to the improvement of the sorting processing capability in the combine.

  As is clear from the above description and FIGS. 6, 10, and 11, the rotation shaft 212 of the reduction conveyor 160 in the second reduction device 58, 160 and the reprocessing cylinder 161 in the reprocessing device 59. Therefore, the length of the reprocessing cylinder 161 in the direction of the rotation axis 217 can be increased along the reduction conveyor 160. Therefore, it is possible to sufficiently secure the distance that the second object moves in the reprocessing device 59 for reprocessing (rethreshing), and the reprocessing function of the second object by the reprocessing cylinder 161 can be improved. Play.

  As is clear from the above description and FIGS. 10 and 12, the lower part of the reprocessing device 59 communicates with the threshing device 5 via a second object discharge unit 215, and is attached to one side wall of the threshing device 5. Since the discharge port 215b of the second product discharge unit 215 is opened in front of a support frame 218 for supporting a certain crimp net 60, the inside of the threshing device 5 is released from the discharge port 215b of the second product discharge unit 215. Toward the front side (the front side of the rocking sorter 52), the processed second object can be smoothly guided and discharged without being randomly scattered. For this reason, it is possible to suppress the possibility that the processed second product is locally deposited, for example, in the vicinity of the second product discharge part 215, and the effect of contributing to further improvement of the sorting processing capability in the combine.

  As apparent from the above description and FIGS. 6 to 11, the second thing is reprocessed on the feed end side of the second reduction devices 58 and 160 that return the second thing after the threshing selection to the threshing device 5. The combine which has the reprocessing apparatus 59, Comprising: The lower part of the said reprocessing apparatus 59 has the 2nd thing discharge | release part 215 located below the rotating shaft 158 of the handling cylinder 51 in the said threshing apparatus 5. Since the lower part of the reprocessing device 59 is connected to the rear upper side of the second product discharger 215, the second product reprocessed (rethreshing), The threshing device 5 is fed from a position lower than the rotating shaft 158 of the handling cylinder 51 so as not to collide with the handling cylinder 51 and the crimp net 60. There is an effect that it is possible to suppress the deflation and pulverization of the processed second product due to the collision with the handling cylinder 51 and the like.

  As apparent from the above description and FIGS. 10 to 12, the second reduction device 58, 160 is in a posture in which the cerealing devices 57, 159 that convey the first thing after the threshing selection to the glen tank 7 extend vertically. The outer shape of the second object discharge part 215 is formed in a funnel shape that extends obliquely downward in the forward direction, and approaches the one side wall 180a of the threshing device 5 as it goes forward and downward. Since the second product discharge part 215 is arranged so as to partially overlap the longitudinal middle part of the cerealing devices 57 and 159 in a side view, the left and right width is formed narrower toward the front. The second product discharger 215 is extended forward using the gap space between the threshing device 5 and the cerealing devices 57 and 159. For this reason, there exists an effect that the processed 2nd thing can be widely disperse | distributed in the said threshing apparatus 5, and can be discharge | released. Further, since the second product discharger 215 is inclined so as to approach the threshing device 5 as it goes downward, the second product discharger 215 is smoothly processed from the lower part of the reprocessing device 59 via the second product discharger 215. There is also an advantage that the second item can be guided to fall.

  As is apparent from the above description and FIGS. 6, 7, and 10 to 12, the front end side of the discharge port 215 b in the second object discharge unit 215 is located on the feed pan 183 of the threshing device 5 in a side view. On the other hand, since the rear end side of the discharge port 215b is located on the chaff sheave 184 of the threshing device 5, the discharge port 215b of the second discharge unit 215 is one side wall 180a of the threshing device 5. In addition, the processed second object can be efficiently guided and discharged from the discharge port 215b of the second object discharge part 215 toward the feed pan 183. Therefore, it is possible to secure a sufficient distance for the processed second product to move while being sorted in the threshing device 5 and to improve the combine processing capability of the combine.

  As apparent from the above description and FIGS. 9 to 11, the second thing is reprocessed on the feed terminal side of the second reduction devices 58 and 160 that return the second thing after the threshing selection to the threshing device 5. A combine having a reprocessing device 59, wherein the reprocessing device 59 includes an upper transfer port 222 communicating with the second reduction devices 58 and 160, and a lower transfer port 223 communicating with the threshing device 5. A plurality of receiving teeth 227 are provided between the upper transfer port 222 and the lower transfer port 223 on the inner surface side of the reprocessing device 59, and provided in the reprocessing device 59. The reprocessing cylinder 161 is provided with processing teeth 225 located between the respective receiving teeth 227. In the reprocessing apparatus 59, the second item is transferred from the upper transfer port 222 to the lower transfer port. Move towards 223 Because they are configured, double-dip product inherited from the double-dip reducer 58,160 would be dropped the reprocessing apparatus 59 in its own weight. For this reason, each processing tooth 225 and each receiving tooth 227 only need to have functions such as stabping stabbed grains and squeezing the lumps, and the function of transporting the second object becomes unnecessary. Therefore, there is an effect that each processing tooth 225 and each receiving tooth 227 can have a simple structure without reducing reprocessing (rethreshing) ability.

  As is apparent from the above description and FIG. 10, the vertical length Lu of the upper transfer port 222, the vertical length Ld of the lower transfer port 223, and the vertical length Lc between the transfer ports 222 and 223. Are set to approximately equal dimensions (Lu≈Ld≈Lc), the reprocessing device 59 is almost divided into three parts, and the reprocessing device 59 maintains the reprocessing (rethreshing) capability. However, it is possible to reduce the possibility that the respective processing teeth 225 and the respective receiving teeth 227 will retain the second object in the reprocessing device 59 for a long time. Therefore, the clogging in the reprocessing device 59 is suppressed, and the processed second product can be smoothly returned to the threshing device 5 side.

  As is apparent from the above description and FIGS. 8 to 11, each receiving tooth 227 protrudes to the outer surface side of the reprocessing device 59 and constitutes a strength member of the reprocessing device 59. Each receiving tooth 227 itself also serves as a reinforcing member for the reprocessing device 59. For this reason, there exists an effect that the rigidity of the said reprocessing apparatus 59 (reprocessing case 216) can be improved.

  As apparent from the above description and FIGS. 10 to 12, the second thing is reprocessed on the feed end side of the second reduction devices 58 and 160 that return the second thing after the threshing selection to the threshing device 5. A combine having a reprocessing device 59, a rotating shaft 212 of a reducing conveyor 160 in the second reducing devices 58 and 160, and a rotating shaft 217 of a reprocessing drum 161 in the reprocessing device 59. Is extended in parallel, and the second reduction device 58, 160 to the reprocessing device 59 among the peripheral wall of the upper transfer port 222 that connects the second reduction device 58, 160 and the reprocessing device 59. The portions 216a and 220a along the flow direction of the second product are shaped along the common tangent line TL extending over the inner circumferences of the second reduction devices 58 and 160 and the reprocessing device 59. 16 The second item inherited by the second transfer member 160 is not along the portion 216a, 220a of the peripheral wall of the upper transfer port 222 but outside the radius of the reprocessing cylinder 161 without significantly reducing the conveying force on the feed end side of the reduction conveyor 160. Toward the reprocessing apparatus 59 side. Accordingly, it is possible to smoothly transfer the second item from the second reduction device 58, 160 to the reprocessing device 59, and to prevent retention at the time of the transfer, the second reduction device 58, 160 and the reprocessing. There is an effect that clogging with the device 59 can be suppressed.

  As apparent from the above description and FIGS. 10 to 12, the scraper plate 224 for preventing the second object from being wound around the rotary shaft 212 at least above the rotary shaft 212 in the reprocessing cylinder 161. Of the peripheral wall of the upper transfer port 222 toward the gap between the portions 216a, 220a along the common tangent and the radially outer side end of the scraper plate 224. Since it is configured to throw in a thing, when the second thing is fed to the reprocessing device 59 side through the upper transfer port 222, the rotation of the scraper plate 224 prevents the second thing from being inherited. Can be surely avoided. Therefore, the second product can be fed into the reprocessing device 59 very smoothly. In addition, the relationship between the presence of the scraper plate 224 and the second guide / injection direction also has the advantage that curling and detachment of the sawdust around the reprocessing cylinder 161 can be suppressed.

  As is apparent from the above description and FIGS. 9 to 11, the scraper plate 224 extends from the upper inner surface to the lower inner surface of the reprocessing device 59, and is positioned lower than the upper transfer port 222 in the scraper plate 224. Since the plurality of treatment teeth 225 are attached to each other, the presence of the scraper plate 224 makes the treatment teeth 225 stable while suppressing the scumming and de-wapping of the reprocessing cylinder 161. There is an effect that can be supported.

(8). Others The present invention is not limited to the above-described embodiment, and can be embodied in various forms. For example, the present invention is not limited to the above-described self-removing combine, but can also be applied to a normal combine. In addition, the structure of each part is not limited to embodiment of illustration, A various change is possible in the range which does not deviate from the meaning of this invention.

DESCRIPTION OF SYMBOLS 1 Traveling machine body 5 Threshing apparatus 51 Handling cylinder 52 Oscillating sorter board 53 Kara fan 55 First conveyor 56 Second conveyor 57 Flouring cylinder 58 Reduction cylinder 59 Reprocessing apparatus 60 Crimp net 158 Handling cylinder rotating shaft 159 Graining conveyor 160 Reduction Conveyor 161 Reprocessing drum 173 Handling chamber 180 Threshing machine casing 180a Right side wall 183 Feed pan 184 Chaff sheave 212 Reduction shaft 215 Second thing discharge part 215b Release port 216 Reprocessing case 216a, 220a Peripheral wall 218 Rear frame 222 Upper transfer port 223 Lower transfer Mouth 224 Scraper plate 225 Second treated tooth 227 Counter teeth

Claims (3)

A combine having a reprocessing device for reprocessing the second product on the feed terminal side of a second reduction device for returning the second product after threshing selection to the threshing device,
The lower part of the reprocessing device communicates with the threshing device via a second thing discharge unit located below the rotation axis of the handling cylinder in the threshing device, and the rear part of the second thing discharge unit The lower part of the reprocessing device is connected to the upper side,
Combine. A threshing device that conveys the first thing after threshing to the Glen tank is arranged in front of the second reduction device in a vertically extending posture, and the outer shape of the second thing discharge part is obliquely downward forward Is formed so as to be closer to one side wall of the threshing device as it goes forward and downward, and the second discharge part is a longitudinal middle part of the cerealing device in a side view. Arranged to overlap,
The combine according to claim 1. In front view, the front end side of the discharge port in the second discharge part is located on the feed pan of the threshing device, while the rear end side of the discharge port is located on the chaff sheave of the threshing device,
The combine according to claim 1 or 2.

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