JP5654231B2 - Combine harvester - Google Patents

Description

  The present invention relates to a harvesting unit for a combine, and in particular, to a power transmission structure for a cutting edge conveying device of the harvesting unit.

  Conventionally, the technique regarding the harvesting part of the 7-saw combine combine is known. For example, as shown in Patent Document 1, the harvesting portion of such a seven-row combine combiner is provided with three scoring devices that scrape two rows of cereals in the left-right direction. A scraping device for scraping the heel is disposed between the left and right center side scraping device and the right side scraping device. In addition, this reaping part has three lower conveyors (root conveyor chains) that transport the grain side of the cereal for two lines in the left-right direction, and conveys the base side of the cereal for one line. The lower transfer device is disposed between the lower transfer device on the left and right center side and the lower transfer device on the right side. In addition, this cutting part has three upper transport devices (tip transport lugs) that transport the tip side of the cereal for two lines in the left-right direction, and the upper part that transports the tip side of the cereal for one line. The transfer device is disposed between the upper left and right upper transfer devices and the right upper transfer device.

  The cutting unit is configured such that the power of the engine mounted on the combine is transmitted to the upper conveying device that conveys the tip of the cereal portion of the grain via a transmission device including a transmission shaft and the like. Yes.

JP 2009-153436 A

  However, in the harvesting part of the combine as shown in Patent Document 1, the transmission device is provided behind the upper conveying device and the lower conveying device that conveys one grain of cereal, so each upper conveying device and each The structure in the vicinity of the conveyance end portion of the lower conveyance device, that is, in the vicinity of the merging portion where the cereal straws being conveyed by the conveyance device are merged becomes complicated. As a result, there is a problem in that the culm being transported is caught on the peripheral parts including the transmission device, and the culm is easily clogged at this junction.

  The present invention has been made in view of the problems as described above, and simplifies the structure in the vicinity of the merging portion where the cereals being conveyed are merged by the conveying device, thereby suppressing clogging of the cereals in the vicinity of the merging portion. An object of the present invention is to provide a harvester for a combine harvester.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

In claim 1, in the harvesting part of the combine including a pulling device, a scraping device, a cutting device, and a conveying device, the scraping device is a pair of right and left scraping wheels and a scraping belt. A first scoring device that stirs cereals for one minute, a second scoring device for scrambling one portion of cereals on one side of the three left and right central sides with a single scoring wheel and a scoring belt, A third scoring device that scrapes the remaining 2 grain cereals out of the 3 left and right center strips with a pair of left and right scraping wheels and a scraping belt, and the left 2 strips with a pair of left and right scraping wheels and a scraping belt A fourth scoring device for scoring the cereal of rice, and the single scoring wheel of the second scoring device and the single scrambling of the third scoring device The conveyor device meshes with the adjacent scraper wheel, and the transport device transports the tip of the cereal that has been scraped by the first scraper device, and the second scraper wheel. A second upper transporting device for transporting the tip of the corn straw scraped by the device, a third upper transporting device for transporting the tip of the cereal scraped by the third scraping device, and the fourth scraping A drive sprocket that includes a fourth upper transport device that transports the tip of the cereal squeezed by the device, projects a rotating shaft of a scraping wheel of the second scraping device upward, and is fixed to the rotating shaft; , A chain, a driven sprocket, and a cover member constitute a transmission device, the transmission device is projected rearward, and a driven rotation shaft extending parallel to the rotation shaft is supported at the rear of the transmission device, and the driven device The driven sprocket is fixed to a rotating shaft, a rotating plate is fixed to a portion where the driven rotating shaft protrudes upward from the transmission device, and is pivotally supported by the rotating plate and an outer peripheral portion of the rotating plate. A plurality of tines projecting on the guide member, and upper and lower plates, Configure feeder, with respect to the second upper conveying device is intended to transmit power through a single scraping ring of the second scraping apparatus from scraping ring of the third scraping device .

  In the present invention, the thickness of the scoring device includes a single scoring wheel of the second scoring device and a scoring wheel of the third scoring device meshing with the single scoring wheel. Is set to be thicker than the thickness of the other scraping wheel.

  According to a third aspect of the present invention, the scraping device includes a single scraper wheel of the second scraper device and a pair of left and right scraper wheels of the third scraper device. Are arranged at a position higher than the pair of left and right scratching wheels of the fourth scraping device.

  As effects of the present invention, the following effects can be obtained.

In Claim 1, the power transmission structure to the 2nd upper conveyance apparatus will be provided above the 2nd pick-up apparatus. Therefore, it is possible to simplify the structure in the vicinity of the merging portion where the corn straws being conveyed by the conveying device join together, and to suppress clogging of the cereal in the vicinity of the merging portion.
That is, the transmission device for transmitting power to the second upper conveyance device 320 as in the prior art is conveyed by the lower conveyance device 200, which is in the vicinity of the merging portion where the grains of the pieces being conveyed are merged by the conveyance device 60. It is not necessary to provide it in the vicinity of the junction 182 where the stock side of the inner cereals merges or in the vicinity of the junction 192 where the tips of the cereals being conveyed by the upper conveying device 300 merge. Therefore, the structure in the vicinity of the junction can be simplified, and clogging of the cereals in the vicinity of the junction can be suppressed. Further, the power transmission structure to the second upper transfer device 320 can be simplified.
And since it is what conveys the upper part of the grain straw 173 for one line, the power required in order to drive the 2nd upper conveying apparatus 320 can be lessened. That is, the second upper transport device 320 can be sufficiently driven even when the power is transmitted from the scraping wheel 131 via the scraping wheel 121 and the transmission device 150.

  In Claim 2, it becomes difficult to remove | deviate mesh | engagement with the single stirring ring of a 2nd stirring device, and the stirring ring of a 3rd stirring device. Therefore, power can be reliably transmitted from the scoring wheel of the third scoring device to the single scoring wheel of the second scoring device, and as a result, from the third scoring device to the second upper transporting device. It can be reliably transmitted via the scraping device.

  In claim 3, interference between a single scoring wheel of the second scoring device and a pair of left and right scoring wheels of the third scoring device and a pair of left and right scoring wheels of the first scoring device is prevented. By avoiding this, it becomes possible to reduce the distance between each other. Also, avoid interference between the single scraper wheel of the second scraper and the pair of left and right scrapers of the third scraper and the pair of left and right scrapers of the fourth scraper. Can be narrowed. Therefore, a cutting part can be comprised compactly.

The whole side view of a combine. The side view of a cutting part. The top view which shows the lower conveying apparatus of a cutting part. The top view which shows the upper conveying apparatus of a cutting part. The figure which shows the power transmission structure of a cutting part. The partial cross section side view of a cutting part. The top view which shows the vicinity of a 2nd stirring device and a 3rd stirring device. The figure which shows the scoring ring of a 2nd scoring apparatus, and the scoring ring of a 3rd scoring apparatus. The partial cross section top view which shows a 2nd picking device and a 2nd upper conveyance apparatus. The perspective view which shows a 2nd scraping apparatus and a 2nd upper conveyance apparatus.

  Hereinafter, embodiments of the present invention will be described in detail.

  First, the overall configuration of the seven-stripe combine 1 according to an embodiment of the present invention will be described.

  As shown in FIG. 1, in the combine 1, the traveling unit 2 is supported by a pair of left and right traveling crawlers 3. A mowing unit 4 that takes in the cereal grains in the field while mowing is attached to the front part of the traveling unit 2 so as to be adjustable up and down. A threshing unit 5 for threshing the cereals harvested by the reaping unit 4 is disposed in the upper left part of the traveling unit 2. A sorting unit 6 that sorts the processed product threshed by the threshing unit 5 is disposed in the lower left portion of the traveling unit 2. A grain tank 7 that stores the grains selected by the selection unit 6 is disposed on the right side of the traveling unit 2. A discharge auger 8 for discharging the grains stored in the grain tank 7 to the outside is disposed at the right rear portion of the traveling unit 2. A driving unit 9 that operates each of the above-described units is disposed on the right front portion of the traveling unit 2.

  Next, the configuration of the cutting unit 4 will be described in detail.

  As shown in FIG. 2, the cutting unit 4 includes a cutting frame 10, a weeding tool 30, a pulling device 40, a scraping device 100, a cutting device 50, and a conveying device 60.

  The cutting frame 10 supports the weeding tool 30 and each device. The cutting frame 10 includes a cutting input pipe 11, a vertical transmission pipe 12, a horizontal transmission pipe 13, a plurality of weed frames 14, 14..., A drive pipe 15, and a pulling vertical transmission pipe 16. The frame includes a pulling lateral transmission pipe 17, a plurality of pulling drive pipes 18, a connecting frame 19, and an intermediate conveyance transmission pipe 20.

  The cutting input pipe 11 is rotatably provided at the left front portion of the traveling unit 2 with its axial direction as the left-right direction. The longitudinal transmission pipe 12 extends downward from the right end portion of the cutting input pipe 11 in the front oblique direction, with its axial direction orthogonal to the axial direction of the cutting input pipe 11. The horizontal transmission pipe 13 extends in the left-right direction from the extending end of the vertical transmission pipe 12 with its axial direction as the left-right direction.

  Each weed frame 14 extends forward from the lateral transmission pipe 13 with its axial direction being generally the front-rear direction. A plurality of weeding frames 14, 14... Are arranged in parallel in the left-right direction at appropriate intervals. The drive pipe 15 is horizontally mounted between the weeding frames 14 and 14 located on the outermost left and right sides with the axial direction of the drive pipe 15 being the left and right direction. The drive pipe 15 is positioned in front of the lateral transmission pipe 13 and is arranged in parallel with the lateral transmission pipe 13.

  The pulling longitudinal transmission pipe 16 extends from the left end portion of the lateral transmission pipe 13 forward and obliquely upward, with its axial direction orthogonal to the axial direction of the lateral transmission pipe 13. The vertical connection frame extends from the right end portion of the horizontal transmission pipe 13 forward and obliquely upward, with its axial direction being orthogonal to the axial direction of the horizontal transmission pipe 13.

  The pulling horizontal transmission pipe 17 is horizontally mounted between the extending end portion of the pulling vertical transmission pipe 16 and the extending end portion of the vertical connection frame, with the axial direction thereof being the left-right direction. Each pulling drive pipe 18 extends forward from the pulling lateral transmission pipe 17 with its axial direction being generally vertical. .. Are arranged in parallel in the left-right direction at predetermined intervals.

  The connecting frame 19 extends rearward from the left and right midway portion of the pulling lateral transmission pipe 17 with its axial direction being generally the front-rear direction. The connection frame 19 is connected to the cutting input pipe 11 side of the longitudinal transmission pipe 12 at its extended end. The middle conveying transmission pipe 20 extends from the side of the horizontal transmission pipe 13 of the vertical transmission pipe 12 to the upper front obliquely.

  The weeding tool 30 separates (splits) cereal grains in the field for each line. The weeding tool 30 includes eight weeding boards 31, 31... (See FIG. 3). Each weed board 31 is formed such that its tip is narrowed. Each weed board 31 is attached to the front end portion of each weed frame 14 so that its tip faces forward.

  The pulling device 40 causes cereals after weeding. The pulling device 40 includes seven pulling cases 41 that support the tine-equipped chain 42 so as to be rotationally driven. The plurality of elevating cases 41 are arranged in an inclined shape with front, rear, and rear heights behind the weeding tool 30, and are arranged at appropriate intervals in the left-right direction. Each pulling case 41 is positioned between each weeding frame 14 and each pulling drive pipe 18 and supported by these.

  The scraping device 100 scrapes the stock of cereals caused by the pulling device 40. The scraping device 100 is arranged behind the pulling device 40 in a slanted shape with a front, a rear, and a height. As shown in FIG. 3, the scraping device 100 includes a first scraping device 110, a second scraping device 120, a third scraping device 130, and a fourth scraping device 140. These scraping devices 110 to 140 are arranged behind the pulling device 40 in an inclined shape with front, rear, and rear heights, and are arranged at appropriate intervals in the left-right direction.

  The first stirrer 110 stirs the stock of the right side of the cereal for 7 cereals (the first and second cereals 171 and 172 counted from the right side). The first raking device 110 includes a pair of left and right star-shaped raking wheels 111 and 112 and a pair of left and right rabbing belts 113 and 114. The first scraping device 110 is disposed on the rightmost side among the plurality of scraping devices 110 to 140.

  The scraper wheel 111 is arranged in a slanted shape with front and rear and rear heights, and is provided to be rotatable around the rotation shaft 161. The take-up wheel 112 is arranged in an inclined shape with front, rear, and rear heights, and is provided to be rotatable around the rotation shaft 162. The picking wheel 111 and the picking wheel 112 are arranged so as to be adjacent to each other in the left-right direction and mesh with each other.

  A large-diameter pulley 115 is disposed above the picking wheel 111 and is fixed to the rotating shaft 161 together with the picking wheel 111. The small-diameter pulley 116 is disposed on the right front side of the large-diameter pulley 115 and is provided so as to be rotatable with respect to the cutting frame 10. Then, the take-in belt 113 is wound around the large-diameter pulley 115 and the small-diameter pulley 116.

  A large-diameter pulley 117 is disposed above the take-up wheel 112 and is fixed to the rotating shaft 162 together with the take-up wheel 112. A small-diameter pulley 118 is disposed on the left front side of the large-diameter pulley 117 and is rotatably provided with respect to the cutting frame 10. Then, the take-up belt 114 is wound around the large-diameter pulley 117 and the small-diameter pulley 118.

  Thus, the scraping belt 113 and the scraping belt 114 are arranged so as to be adjacent to each other in the left-right direction, and between the belt surfaces facing each other, that is, the left outer surface of the scraping belt 113 and the right outer surface of the scraping belt 114. The distance between the two is stretched substantially in the front-rear direction so that the distance from the front gradually decreases from the front to the rear, that is, in a substantially square shape when viewed from the front.

  The second stirrer 120 is one side of the left and right center side of the seven cereals, and in this embodiment, the right side of the culm (the third culm 173 counted from the rightmost side). Is to stir up the stockholder. The second raking device 120 includes a single star-shaped raking wheel 121 and a single raking belt 122 with a protrusion. The second stirrer 120 is arranged on the left side of the first stirrer 110 on the left and right center side among the plurality of stirrers 110 to 140.

  The take-up wheel 121 is arranged in an inclined shape with front and rear and rear heights, and is provided to be rotatable around the rotation shaft 163. The take-up wheel 121 is located on the left side of the left take-in wheel 112 of the first take-up device 110 and is not meshed with the left take-in wheel 112.

  The large-diameter pulley 123 is disposed above the pick-up wheel 121 and is fixed to the rotating shaft 163 together with the pick-up wheel 121. A small-diameter pulley 124 is disposed on the left front side of the large-diameter pulley 123 and is rotatably provided with respect to the cutting frame 10. Then, the take-up belt 122 is wound around the large diameter pulley 123 and the small diameter pulley 124.

  Thus, the take-up belt 122 is stretched substantially in the front-rear direction. In addition, a guide rod (not shown) is provided between the pick-up belt 122 and the pick-up belt 114 of the first pick-up device 110 so as to face the right outer surface of the pick-up belt 122 with a predetermined interval. Placed in.

  The third scraping device 130 is the remaining two of the left and right central three of the seven grains, and in this embodiment, the middle one and the left one of the grains (counting from the rightmost) 4th and 5th grain rice cakes 174 and 175). The third scraping device 130 includes a pair of left and right star-shaped scraping wheels 131 and 132 and a pair of left and right scraping belts 133 and 134 with protrusions. The third scraping device 130 is disposed on the left side of the second scraping device 120 on the left and right center side among the plurality of scraping devices 110 to 140.

  The take-up wheel 131 is arranged in an inclined shape with front and rear and rear height, and is provided so as to be rotatable around the rotation shaft 164. The take-up wheel 132 is arranged in an inclined shape with front and rear and rear heights, and is provided to be rotatable around the rotation shaft 165. The picking wheel 131 and the picking wheel 132 are arranged so as to be adjacent to each other in the left-right direction and mesh with each other.

  The pick-up wheel 131 is located on the left side of the pick-up wheel 121 of the second pick-up device 120 and is arranged adjacent to the pick-up wheel 121 in the left-right direction. That is, the picking wheel 131 is arranged so as to be sandwiched between the left picking wheel 132 and the right picking wheel 121. Then, the scraping wheel 131 is meshed with the scraping wheel 132 as described above, and is also meshed with the scraping wheel 121.

  A large-diameter pulley 135 is disposed above the picking wheel 131 and is fixed to the rotating shaft 164 together with the picking wheel 131. A small-diameter pulley 136 is disposed on the right front side of the large-diameter pulley 135 and is rotatably provided with respect to the cutting frame 10. Then, the take-in belt 133 is wound around the large diameter pulley 135 and the small diameter pulley 136.

  A large-diameter pulley 137 is disposed above the pick-up wheel 132 and is fixed to the rotating shaft 165 together with the pick-up wheel 132. A small-diameter pulley 138 is disposed on the left front side of the large-diameter pulley 137 and is rotatably provided with respect to the cutting frame 10. Then, the driving belt 134 is wound around the large diameter pulley 137 and the small diameter pulley 138.

  Thus, the scraping belt 133 and the scraping belt 134 are arranged so as to be adjacent to each other in the left-right direction, and between the belt surfaces facing each other, that is, the left outer surface of the scraping belt 133 and the right outer surface of the scraping belt 134. The distance between the two is stretched substantially in the front-rear direction so that the distance from the front gradually decreases from the front to the rear, that is, in a substantially square shape when viewed from the front.

  The fourth stirrer 140 scrapes stocks of the left side of the cereal for 7 cereals (the 6th and 7th stalks 176 and 177 counted from the right side). The fourth raking device 140 includes a pair of left and right star-shaped raking wheels 141 and 142 and a pair of left and right raking belts 143 and 144 with protrusions. The fourth scraping device 140 is disposed on the leftmost side of the plurality of scraping devices 110 to 140 and adjacent to the left of the third scraping device 130.

  The take-up wheel 141 is arranged in an inclined shape with front, rear, and rear heights, and is provided to be rotatable around the rotation shaft 166. The take-up wheel 142 is arranged in an inclined shape with front and rear and rear height, and is provided so as to be rotatable around the rotation shaft 167. The picking wheel 141 and the picking wheel 142 are arranged so as to be adjacent to each other in the left-right direction and mesh with each other.

  A large-diameter pulley 145 is disposed above the picking wheel 141 and is fixed to the rotating shaft 166 together with the picking wheel 141. A small-diameter pulley 146 is disposed on the right front side of the large-diameter pulley 145 and is provided to be rotatable with respect to the cutting frame 10. Then, the take-in belt 143 is wound around the large diameter pulley 145 and the small diameter pulley 146.

  The large-diameter pulley 147 is disposed above the take-up wheel 142 and is fixed to the rotating shaft 167 together with the take-up wheel 142. A small-diameter pulley 148 is disposed on the left front side of the large-diameter pulley 147 and is provided so as to be rotatable with respect to the cutting frame 10. Then, the take-in belt 144 is wound around the large diameter pulley 147 and the small diameter pulley 148.

  Thus, the scraping belt 143 and the scraping belt 144 are arranged so as to be adjacent to each other in the left-right direction, and between the mutually facing belt surfaces, that is, the left outer surface of the scraping belt 143 and the right outer surface of the scraping belt 144. The distance between the two is stretched substantially in the front-rear direction so that the distance from the front gradually decreases from the front to the rear, that is, in a substantially square shape when viewed from the front.

  Further, in the scraping device 100, as shown in FIG. 8, the thickness of the scraping wheel 121 of the second scraping device 120 and the right scraping wheel 131 of the third scraping device 130 that meshes with the scraping wheel 121. Is set to be thicker than the thicknesses of the other scraping wheels 111, 112, 132, 141, 142. That is, the width in the axial direction of the rotation shaft 163 of the picking wheel 121 and the width in the axial direction of the rotation shaft 164 of the picking wheel 131 are respectively the other picking wheels 111, 112, 132, 141, and 142. Is set larger than the width in the axial direction of the rotating shafts 161, 162, 165, 166, and 167.

  In the present embodiment, the thickness of the scraping wheel 121 of the second scraping device 120 and the thickness of the right scraping wheel 131 of the third scraping device 130 are both set to the same thickness L1. On the other hand, the thicknesses of the other scraping wheels 111, 112, 132, 141, 142 are all set to the same thickness L2. The thickness L1 and the thickness L2 are in a relationship of L1> L2 where the thickness L1 is larger than the thickness L2.

  Further, in the scraping device 100, as shown in FIG. 8, the scraping wheel 121 of the second scraping device 120 and the pair of left and right scraping wheels 131 and 132 of the third scraping device 130 are the first It arrange | positions in the position higher in the up-down direction rather than the picking-up wheels 111 * 112 of the picking-up apparatus 110 and the picking-up rings 141 * 142 of the fourth picking-up apparatus 140. Specifically, the lower surfaces of the picking wheel 121 and the picking wheels 131 and 132 are arranged at higher positions in the vertical direction than the upper surfaces of the picking wheels 111 and 112 and the picking wheels 141 and 142.

  In the present embodiment, the lower surface height of the scraping wheel 121 of the second scraping device 120 and the lower surface height of the right scraping wheel 131 of the third scraping device 130 are both set to the same lower surface height H1. . The lower surface height of the left raking wheel 132 of the third scraping device 130 is set to the lower surface height H2. The upper surface height of the scraping wheels 111 and 112 of the first scraping device 110 and the upper surface height of the scraping wheels 141 and 142 of the fourth scraping device 140 are both set to the same upper surface height H3. The lower surface heights H1 and H2 and the upper surface height H3 have a relationship of H1 and H2> H3 where the lower surface heights H1 and H2 are higher than the upper surface height H3.

  As shown in FIG. 2, the cutting device 50 is scraped 7 by the first scraping device 110, the second scraping device 120, the third scraping device 130, and the fourth scraping device 140 of the scraping device 100. The cereal grains are cut by the cutting blade 51 on the stock side. The cutting device 50 is disposed below the scraping device 100 in an inclined shape with a front, a rear, and a height.

  The conveyance device 60 conveys the cereals cut by the cutting device 50 toward the threshing unit 5. The conveyance device 60 is arranged behind the pulling device 40 and from above the scraping device 100 and the cutting device 50 to the upper rear. The transport device 60 includes a lower transport device 200, an upper transport device 300, a vertical transport device 70, an auxiliary transport device 80, and a tip transport device 90.

  The lower conveyance device 200 joins and harvests the harvested cereal stocks to the vertical conveyance device 70. As shown in FIG. 3, the lower transfer device 200 includes a first lower transfer device 210, a second lower transfer device 220, a third lower transfer device 230, and a fourth lower transfer device 240.

  The first lower conveying device 210 is connected to the stock of the two rows of grain straws 171 and 172 that have been scraped by the first scraping device 110, and the grain straws 173, 174, The stocks of 175, 176, and 177 are joined together, and the stocks of seven cereal grains 171, 172, 173, 174, 175, 176, and 177 are nipped and transported to the vertical transport device 70. The first lower transport device 210 is arranged in a slanted shape with a front low rear height behind the first scraping device 110 and the second scraping device 120, and from the vicinity of the first scraping device 110 toward the left oblique rear. It is extended.

  The first lower transfer device 210 includes a transfer chain 211, a driven sprocket 212 fixed to the rotating shaft 161, a drive sprocket 213, idle pulleys 214 and 215 provided on the left and right sides of the drive sprocket 213, and a drive. A tension pulley 216 provided on the right front side of the sprocket 213. The conveyance chain 211 is wound around a driven sprocket 212, a drive sprocket 213, idle pulleys 214 and 215, and a tension pulley 216.

  The second lower conveying device 220 sandwiches and conveys the stock of the stalks 173 for one line scraped by the second raking device 120 to the junction 182 with the first lower conveying device 210. The second lower conveying device 220 is arranged in a slanted shape with a front low and a rear height behind the second scraping device 120 and in front of the left side of the first lower conveying device 210. The first lower transfer device 210 extends rearward to the vicinity of the middle of the transfer.

  The second lower transfer device 220 includes a transfer chain 221, a drive sprocket 223 fixed to the rotary shaft 163, two idle pulleys 224 and 225, and a tension pulley 226. The conveyance chain 221 is wound around the drive sprocket 223, the idle pulleys 224 and 225, and the tension pulley 226.

  The third lower transport device 230 sandwiches and transports the stocks of the two cereal grains 174 and 175 raked by the third scraping device 130 to the junction 181 with the fourth lower transport device 240. The third lower transport device 230 is arranged in a slanted shape with a front, rear, and rear height behind the third scraping device 130 and in front of the right side of the fourth lower transport device 240. The lower transfer device 240 extends rearward to the vicinity of the middle of the transfer.

  The third lower transfer device 230 includes a transfer chain 231, a driven sprocket 232 fixed to the rotary shaft 164, a drive sprocket 233, an idle pulley 234 provided on the left side of the drive sprocket 233, and a drive sprocket 233. And a tension pulley 235 provided in front of the. The conveyance chain 231 is wound around a driven sprocket 232, a drive sprocket 233, an idle pulley 234 and a tension pulley 235.

  The fourth lower transporting device 240 is a stock of the culm 174/175 that is conveyed while being sandwiched and transported by the third lower transporting device 230 to the stock of the stalks 176/177 of the two strips that have been scraped by the fourth scraping device 140. The formers are merged, and the stocks of the cereal grains 174, 175, 176, and 177 for the four strips are nipped and conveyed to the junction 183 with the first lower conveying device 210. The fourth lower transport device 240 is arranged in a slanting shape at the front, rear, and rear height behind the fourth scraping device 140, and is tilted rightward from the vicinity of the third scraping device 130 to the vicinity of the transport end portion of the fourth lower transport device 240. It extends toward the rear.

  The fourth lower transfer device 240 includes a transfer chain 241, a driven sprocket 242 fixed to the rotary shaft 167, a drive sprocket 243, idle pulleys 244 and 245 provided to the right of the drive sprocket 243, a drive A tension pulley 246 provided in front of the sprocket 233. The transport chain 241 is wound around a driven sprocket 242, a drive sprocket 243, idle pulleys 244 and 245, and a tension pulley 246.

  The upper conveying device 300 is configured to latch and convey the ear of the cereal that is nipped and conveyed by the lower conveying device 200. As shown in FIG. 2, the upper transport device 300 is disposed above and below the lower transport device 200 in a front-rear and rear-inclined shape and extends rearward from the vicinity of the upper portion of the scraping device 100. As shown in FIG. 4, the upper transfer device 300 includes a first upper transfer device 310, a second upper transfer device 320, a third upper transfer device 330, and a fourth upper transfer device 340.

  The first upper transfer device 310 applies the tips of the cereal 173 transferred and locked from the second upper transfer device 320 to the tips of the two halves 171 and 172 conveyed by the first lower transfer device 210. The heads of the grain ridges 171, 172, and 173 for the three strips are locked and conveyed. The first upper transfer device 310 is disposed above the first lower transfer device 210 and extends from the vicinity of the first scraping device 110 toward the left oblique rear.

  The first upper transfer device 310 includes a transfer chain 311, a tine 312 attached to the transfer chain 311 so as to be able to protrude and house at a predetermined interval, a drive sprocket 313, and a tension pulley 314. The conveyance chain 311 is wound around the drive sprocket 313 and the tension pulley 314.

  The 2nd upper conveyance apparatus 320 carries out the latch conveyance of the ear | tip of the grain straw 173 for 1 piece conveyed by the 2nd lower conveyance apparatus 220 to the junction part 192 with the 1st upper conveyance apparatus 310 (for details). Will be described later).

  The third upper transport device 330 is configured to lock and transport the tips of the two cereal grains 174 and 175 transported by the third lower transport device 230 to the junction 191 with the fourth upper transport device 340. The third upper transfer device 330 is disposed above the third lower transfer device 230 and extends from the vicinity of the third scraping device 130 toward the left oblique rear.

  The third upper transfer device 330 includes a transfer chain 331, a tine 332 attached to the transfer chain 331 so as to be able to protrude and house at a predetermined interval, a driving sprocket 333, a tension pulley 334, and an idle pulley 335. . The conveyance chain 331 is wound around the drive sprocket 333, the tension pulley 334, and the idle pulley 335.

  The fourth upper transport device 340 is configured to hold the grain straws 174 and 175 conveyed from the third upper transport device 330 to the tips of the two grain straws 176 and 177 conveyed by the fourth lower transport device 240. The heads are joined, and the tips of the four cereal grains 174, 175, 176, and 177 are locked and conveyed to the junction 193 with the first upper conveyance device 310. The fourth upper transfer device 340 is disposed above the fourth lower transfer device 240 and extends from the vicinity of the fourth scraping device 140 toward the right rear side.

  The fourth upper transfer device 340 includes a transfer chain 341, a tine 342 attached to the transfer chain 341 so as to be able to protrude and house at a predetermined interval, a drive sprocket 343, a tension pulley 344, and idle pulleys 345 and 346. Is provided. The conveyance chain 341 is wound around the drive sprocket 343, the tension pulley 344, and the idle pulleys 345 and 346.

  The vertical conveyance device 70 sandwiches and conveys the stock of seven cereal grains inherited from the conveyance terminal portion of the first lower conveyance device 210 to the auxiliary conveyance device 80. As shown in FIG. 2, the vertical conveyance device 70 is disposed in a slanted shape at the front, rear, and rear height behind the lower conveyance device 200, and extends from the vicinity of the conveyance terminal portion of the lower conveyance device 200 toward the left diagonal rear. .

  The auxiliary conveyance device 80 sandwiches and conveys the stock of seven cereal grains inherited from the conveyance terminal portion of the vertical conveyance device 70 to the threshing unit 5. The auxiliary conveyance device 80 is disposed on the rear upper side of the vertical conveyance device 70, and extends backward from the vicinity of the conveyance end portion of the vertical conveyance device 70.

  The tip conveying device 90 is a device that latches and conveys the tip of the cereal that is conveyed by the first lower conveying device 210, the vertical conveying device 70, and the auxiliary conveying device 80. The tip transfer device 90 is disposed below the rear portion of the first upper transfer device 310 and extends rearward from the vicinity of the transfer intermediate portion of the first upper transfer device 310 (see FIG. 4).

  Next, the power transmission structure of the cutting unit 4 will be described.

  In the cutting frame 10, that is, each of the pipes constituting the cutting frame 10, a transmission shaft for transmitting power to each device is inserted along the longitudinal direction. Specifically, for example, as shown in FIG. 6, a cutting input shaft 411 is inserted into the cutting input pipe 11. A longitudinal transmission shaft 412 is inserted into the longitudinal transmission pipe 12. A lateral transmission shaft 413 is inserted into the lateral transmission pipe 13. An intermediate conveyance transmission shaft 420 is inserted into the intermediate conveyance transmission pipe 20.

  The reaping input shaft 411 is linked to the engine mounted on the traveling unit 2 and linked to the longitudinal transmission shaft 412. The vertical transmission shaft 412 is appropriately interlocked and connected to the horizontal transmission shaft 413, the intermediate conveyance transmission shaft 420, and other transmission shafts. In this way, the power transmitted from the engine to the cutting input shaft 411 can be further transmitted from the cutting input shaft 411 to the pulling device 40, the scraping device 100, the cutting device 50, and the conveying device 60 via the vertical transmission shaft 412. The

  Here, the power transmission structure from the cutting input shaft 411 to the second scavenging device 120 will be described in detail.

  As shown in FIGS. 5 and 6, an input pulley 410 to which engine power is input is fixed at the left end of the cutting input shaft 411, and a bevel gear is fixed at the right end. A bevel gear that meshes with the bevel gear is fixed to the rear end of the vertical transmission shaft 412. The right end of the cutting input shaft 411 is interlocked with the rear end of the vertical transmission shaft 412. A bevel gear is fixed to the front end of the vertical transmission shaft 412, and a bevel gear that meshes with the bevel gear is fixed to the left and right middle portions of the horizontal transmission shaft. The front end of the vertical transmission shaft 412 is interlocked with the left and right middle portions of the horizontal transmission shaft 413.

  Further, a bevel gear is fixedly provided at a front portion of the vertical transmission shaft 412, specifically, a position slightly behind the front end of the vertical transmission shaft 412, and interlocked with one end (lower side) of the intermediate conveyance transmission shaft 420 via the bevel gear. Connected. A drive sprocket 233 of the third lower transfer device 230 is fixedly provided in the middle of the middle transfer transmission shaft 420 in the longitudinal direction.

  As described above, the transport chain 231 is wound around the drive sprocket 233 together with the driven sprocket 232 as shown in FIG. The driven sprocket 232 is fixed to the rotating shaft 164 together with the stirring wheel 131. The right side scraping wheel 131 of the third scraping device 130 is engaged with the scraping wheel 121 of the second scraping device 120.

  With such a structure, the power transmitted from the engine to the input pulley 410 is a cutting input shaft 411, a longitudinal transmission shaft 412, a middle conveyance transmission shaft 420, a drive sprocket 233, a conveyance chain 231, a driven sprocket 232, a rotation shaft 164, It is transmitted in the order of the picking wheel 131 and further transmitted from the picking wheel 131 to the picking wheel 121.

  In addition, when the scraping wheel 121 is rotated by the transmission of power, the driving sprocket 223 of the second lower conveying device 220 is rotated, and the conveying chain 221 wound around the driving sprocket 223 is rotated ( (See FIG. 3).

  In such a configuration, the cutting unit 4 drives each device with the power from the engine during the cutting operation, and takes in the grain culm while cutting. That is, in the cutting unit 4, the cereals after the weeding are caused after the cereals in the field are divided by the weeding tool 30 so as to be separated for each line. Subsequently, the stocker side of the cereal caused by the pulling device 40 is scraped by the scraping device 100.

  Specifically, in the first stirrer 110, the stirrer wheel 111 and the large-diameter pulley 115 rotate around the rotation shaft 161 in the direction of the arrow in FIG. The rotation of the large-diameter pulley 115 causes the take-up belt 113 to rotate. Further, by the rotation of the picking wheel 111, the picking wheel 112 that meshes with the picking wheel 111 rotates around the rotation shaft 162 in the direction of the arrow in FIG. The large-diameter pulley 117 is rotated by the rotation of the scraping wheel 112. Then, by the rotation of the large-diameter pulley 117, the take-up belt 114 rotates. Thereby, the stock origin side of the grain halves 171 and 172 for the two right-hand sides is scraped backward by the scraping wheels 111 and 112 and the scraping belts 113 and 114.

  In the second scraping device 120 and the third scraping device 130, the scraping wheel 131 and the large-diameter pulley 135 rotate around the rotation shaft 164 in the direction of the arrow in FIG. The rotation of the large-diameter pulley 135 causes the take-up belt 133 to rotate. Further, by the rotation of the picking wheel 131, the picking wheels 121 and 132 meshing with the picking wheel 131 rotate around the rotation shafts 163 and 165 in the direction of the arrow in FIG. Due to the rotation of the scraping wheel 121, the large-diameter pulley 123 rotates in the direction of the arrow in FIG. Then, as the large-diameter pulley 123 rotates, the take-up belt 122 rotates. Further, the large-diameter pulley 137 is rotated by the rotation of the scraping wheel 132. Then, as the large-diameter pulley 137 rotates, the take-up belt 134 rotates. As a result, the stock side of the grain 173 for the right one of the three right and left central sides is raked rearward by the picking wheel 121 and the picking belt 122, and the remaining one of the three left and right central sides is left. The stock side of the cereal grains 174 and 175 of the two strips is scraped backward by the scraping wheels 131 and 132 and the scraping belts 133 and 134.

  In the fourth scraping device 140, the scraping wheel 142 and the large-diameter pulley 147 rotate around the rotation shaft 167 in the direction of the arrow in FIG. By the rotation of the large-diameter pulley 147, the take-up belt 144 rotates. Further, by the rotation of the picking wheel 142, the picking wheel 141 that meshes with the picking wheel 142 rotates around the rotation shaft 166 in the direction of the arrow in FIG. The large-diameter pulley 145 is rotated by the rotation of the scraping wheel 141. Then, by the rotation of the large diameter pulley 145, the take-in belt 143 rotates. Thereby, the stock origin side of the left side two cereal grains 176 and 177 is scraped backward by the scraping wheels 141 and 142 and the scraping belts 143 and 144.

  The cutting device 50 cuts the grains 171 172, the grains 173, the grains 174 175, and the grains 176 177 on the stock market side. The cereal grains 171, 172, cereal grains 173, cereal grains 174, 175, and cereal grains 176, 177 after the cutting are conveyed toward the threshing unit 5 while being merged on the way by the conveying device 60. In the transport device 60, first, the stock side of the cereal baskets 171, 172, 173, 174, 175, and 176 177 are transported by the lower transport device 200, and the tip side is transported by the upper transport device 300. .

  Specifically, in the third lower transport device 230, the transport chain 231 is rotated by the rotation of the drive sprocket 233. As a result, the stock side of the two stalks 174 and 175 raked by the third rake device 130 is transported to the merging portion 181 on the upper side after the slant. Here, the merging portion 181 is in the middle of the conveyance of the fourth lower conveyance device 240 and is positioned close to the third lower conveyance device 230.

  On the other hand, in the third upper transport device 330, the transport chain 331 is rotated by the rotation of the drive sprocket 333. As a result, the tip side of the two grain culms 174 and 175 to which the stock source side is transported by the third lower transport device 230 is locked and transported to the confluence portion 191 on the upper side after the slant. Here, the merging portion 191 is in the middle of the transport of the fourth upper transport device 340 and is positioned close to the third upper transport device 330.

  In the fourth lower transfer device 240, the transfer chain 241 is rotated by the rotation of the drive sprocket 243. As a result, the stock side of the cereal grains 176 and 177 of the two stalks raked by the fourth stirrer 140 and the stock side of the cereal grains 174 and 175 inherited by the merge part 181 are joined together at the upper part after the slant. It is conveyed to the part 183. Here, the merging portion 183 is located at a position downstream of the intermediate conveyance portion of the first lower conveyance device 210 and close to the fourth lower conveyance device 240.

  On the other hand, in the fourth upper transport device 340, the transport chain 341 is rotated by the rotation of the drive sprocket 343. As a result, the tip side of the two grain culms 176 and 177 conveyed by the fourth lower conveying device 240 is transferred to the tip side of the corn 174 and 175 that is locked and conveyed by the third upper conveying device 330. After merging, the tips of the grain ridges 174, 175, 176, and 177 for the four strips are latched and conveyed to the upper junction 193 after the diagonal. Here, the merging portion 193 is positioned downstream of the middle transfer portion of the first upper transfer device 310 and close to the fourth upper transfer device 340.

  In the second lower transfer device 220, the transfer chain 221 is rotated by the rotation of the drive sprocket 223. Thereby, the stock-source side of the grain scum 173 for one strip that has been scraped by the second scraping device 120 is conveyed to the rear upper junction 182. Here, the merging portion 182 is a midway transfer portion of the first lower transfer device 210 and is positioned close to the second lower transfer device 220.

  On the other hand, in the second upper transport device 320, the tip side of the stalk 173 for one line that the stock source side is transported by the second lower transport device 220 is latched and transported to the rear upper junction 192. Here, the merging portion 192 is in the middle of the conveyance of the first upper conveyance device 310 and is positioned close to the second upper conveyance device 320.

  In the first lower transport device 210, the transport chain 211 is rotated by the rotation of the drive sprocket 213. As a result, the stock side of the two stalks 171 and 172 raked by the first stirrer 110 is conveyed upward after the slant and is inherited at the junctions 182 and 183, 173, 174, and 175 -It is conveyed to the vertical conveyance apparatus 70 with the stockholder side of 176 * 177.

  On the other hand, in the first upper transport device 310, the transport chain 311 is rotated by the rotation of the drive sprocket 313. As a result, the tip side of the two cereal rice cakes 171 and 172 to which the stock source side is conveyed by the first lower conveying device 210 is combined with the ear of the cereal rice cake 173 inherited at the junction 192, and the third rice cake 171.・ The tips of 172 and 173 are locked and conveyed upward after the slant.

  In other words, in the lower transport device 200, the stock source side of the grain straws 174 and 175 transported by the third lower transport device 230 is the stock origin of the grain straws 176 and 177 transported by the fourth lower transport device 240 at the junction 181. The cereal baskets 174, 175, 176, and 177 that are being conveyed become one bundle for four strips, and the bundle is conveyed to the merge unit 183. And the stocker side of the grain straws 171 and 172 transported by the first lower transporting device 210 joins the stocker side of the grain straw 173 transported by the second lower transporting device 220 at the joining part 182 and is being transported. Cereal grains 171, 172, and 173 form one bundle for three strips, and this bundle merges with the cereal grains 174, 175, 176, and 177 conveyed by the fourth lower conveying device 240 at the junction 183. In this way, the stock side of the seven cereal grains 171, 172, 173, 174, 175, 176, and 177 as one bundle is passed to the conveyance start end of the vertical conveyance device 70.

  In the upper conveying device 300, the tip side of the grain ridges 174 and 175 conveyed by the third upper conveying device 330 merges with the tip side of the grain 176 and 177 conveyed by the fourth upper conveying device 340 at the junction 191. Thus, the grains 174, 175, 176, and 177 being conveyed become one bundle of four strips, and this bundle is conveyed to the junction 193. Then, the tip side of the grain pods 171 and 172 conveyed by the first upper conveying device 310 merges with the tip side of the corn 173 conveyed by the second upper conveying device 320 at the merging portion 192, and the corn candy being conveyed The bundles 171, 172, and 173 become one bundle of three strips, and this bundle joins the cereal grains 174, 175, 176, and 177 conveyed by the fourth upper conveyance device 340 at the junction 193. The tip side of the seven cereal grains 171, 172, 173, 174, 175, 176, and 177 as a bundle is transferred to the intermediate transfer portion of the tip transfer device 90. In addition, the conveyance start end part of the tip conveyance apparatus 90 is the downstream of the confluence | merging part 192, Comprising: Below the 1st upper conveyance apparatus 310, the 1st grain candy which is nipped and conveyed by the 1st lower conveyance apparatus 210 is 1st From the middle of the conveyance of the upper conveyance device 310, the first conveyance device 310 and the first upper conveyance device 310 are engaged and conveyed.

  And, the grain side 171, 172, 173, 174, 175, 176, and 177 of the 7 stalks are nipped and conveyed by the vertical conveying device 70 while the tip side is locked and conveyed by the tip conveying device 90, Finally, it is passed to the threshing unit 5 via the auxiliary conveyance device 80.

  Next, a detailed structure of the second upper transport device 320 and a power transmission structure to the second upper transport device 320 will be described. As shown in FIG. 7, FIG. 9 and FIG. 10, power is transmitted to the second upper transport device 320 from the scraping wheel 121 of the second scraping device 120 via the transmission device 150.

  The transmission device 150 includes a chain 151, a drive sprocket 152, a driven sprocket 153, and a cover member 154. The drive sprocket 152 is fixed to the rotating shaft 163 together with the scraping wheel 121. The driven sprocket 153 is pivotally supported by a rotating shaft 155 that extends diagonally to the right of the drive sprocket 152 and extends in parallel with the rotating shaft 163. The chain 151 is wound around the drive sprocket 152 and the driven sprocket 153.

  The chain 151, the drive sprocket 152, and the driven sprocket 153 are covered with a substantially rectangular cover member 154. A columnar first transmission pipe 156 having a rotating shaft 163 inserted therein is projected from the front lower portion of the cover member 154. The transmission device 150 is supported by the second scraping device 120 via the first transmission pipe 156. In addition, a cylindrical second transmission pipe 157 having a rotating shaft 155 inserted therein is projected from the rear upper part of the cover member 154. The second upper transfer device 320 is supported by the transmission device 150 via the second transmission pipe 157.

  The second upper transport device 320 includes a rotating plate 321, a plurality (four) of tines 322, 322, 322, 322, an upper plate 323, a lower plate 324, and a guide member. The rotating plate 321 is formed in a substantially disc shape. A rotating shaft 155 is inserted into the center of the rotating plate 321 and fixed to the rotating plate 321. At the radially outer peripheral end of the rotating plate 321, there are one end portions (base portions 322 a) of tines 322, 322, 322, and 322 that are substantially square-shaped at predetermined intervals (approximately 90 °) in the circumferential direction around the rotating shaft 155. It is pivoted. The base portion 322a of each tine projects in the axial direction of the support shaft 322b and on the opposite side to the rotating plate 321.

  The upper plate 323 and the lower plate 324 are plate members having a plate surface larger than the rotating plate 321. The upper plate 323 is disposed so that its plate surface faces the plate surface of the rotating plate 321 and is substantially parallel to the rotating plate 321 above the rotating plate 321 in a side view. The lower plate 324 is disposed so that its plate surface faces the plate surface of the rotating plate 321 and is substantially parallel to the rotating plate 321 below the rotating plate 321 in a side view. That is, the upper plate 323 and the lower plate 324 are disposed to face each other with a predetermined interval in the axial direction of the rotation shaft 155, and the rotation plate 321 is disposed between the upper plate 323 and the lower plate 324.

  A rotation shaft 155 is inserted into the center portion of the upper plate 323 and the lower plate 324. The upper plate 323 and the lower plate 324 are supported by the rotating shaft 155 via bearings or the like. Then, the upper plate 323 is fastened to the lower plate 324 with a bolt nut 325 or the like. First guide members 326 and 326 are protruded toward the rotating plate 321 side along the outer peripheral shape on the inner side surfaces at the outer peripheral ends (right sides) of the upper plate 323 and the lower plate 324. The width between the first guide members 326 and 326 is set to be larger than the width of each tine 322 in the axial direction of the rotation shaft 155. On the inner surfaces of the upper plate 323 and the lower plate 324 that are slightly closer to the inner periphery than the outer peripheral ends, substantially arc-shaped second guide members 327 and 327 centering on the rotation shaft 155 are directed toward the rotation plate 321. Projected.

  With such a structure, the drive sprocket 152 of the transmission 150 is rotated by the rotation of the scraping wheel 121, and the driven sprocket 153 is rotated via the chain 151 wound around the drive sprocket 152. As the driven sprocket 153 rotates, the rotating plate 321 rotates in the arrow direction. At this time, the tine 322 pivotally supported by the rotating plate 321 rotates around the rotating shaft 155, and when the base portion 322a contacts the second guide members 327 and 327, the rotating plate 321 rotates around the supporting shaft 322b. Rotate in the direction of rotation. Thereby, the front-end | tip part 322c of the tine 322 protrudes outward rather than the 1st guide member 326 * 326. Thereafter, the base portion 322a of the tine 322 moves between the first guide members 326 and 326 and the second guide members 327 and 327, and the protruding state of the tine 322 is maintained. That is, the tine 322 latches and conveys the tip side of the grain candy. The tine 322 rotates around the support shaft 322b in the direction opposite to the rotation direction of the rotating plate 321 when the base 322a is not in contact with the second guides 327 and 327. Thereby, the front-end | tip part 322c of the tine 322 is located inside the 1st guide member 326 * 326, and does not protrude outside. That is, the tine 322 is stored.

  In addition, you may comprise so that the tip side of the grain ridge 173 conveyed with the 2nd upper conveying apparatus 320 may be conveyed, making it contact | abut with the outer edge of the transmission apparatus 150, and guiding. That is, you may comprise so that the cover member 154 of the transmission apparatus 150 may serve as the guide rod of the corn straw to which it is conveyed.

  As described above, the harvesting unit 4 of the seven-row harvesting combine 1 according to the embodiment of the present invention is the harvesting of the combine 1 including the pulling device 40, the scraping device 100, the cutting device 50, and the conveying device 60. In the section 4, the scraping device 100 includes a first scraping device 110 that scrapes the right side two cereal grains 171 and 172 with a pair of left and right scraping wheels 111 and 112 and a scraping belt 113 and 114; A second scraping device 120 that scrapes the cereal bud 173 of one side out of the three strips on the left and right central sides with one scraping ring 121 and a scraping belt 122, a pair of left and right scraping wheels 131 and 132, and a scraper. A third scoring device 130 for scrambling the remaining two cereal grains 174 and 175 out of the three left and right central parts with the scooping belts 133 and 134, a pair of left and right scoring wheels 141 and 142, and a scrambling belt 143 At 144, the left side cereals 稈A fourth scraping device 140 that scrapes the first scraping wheel 7, and a single scratching wheel 121 of the second scraping device 120 and a single scratching wheel of the third scraping device 130. A first upper transport device 310 that transports the tip of the cereal grains 171 and 172 that have been scraped by the first scraping device 110; The second upper transport device 320 that transports the tip of the grain culm 173 squeezed by the second scraping device 120 and the tip of the stalk 174 and 175 that is scratched by the third scoring device 130 are transported. A third upper transport device 330, and a fourth upper transport device 340 that transports the tips of the grains 176 and 177 scraped by the fourth scraping device 140, and power is supplied to the second upper transport device 320. From the third stirrer 130 to the second stirrer 120 It is intended to convey Te.

  Thereby, the power transmission structure to the second upper transfer device 320 is provided above the second scraping device 120. That is, a conventional transmission device for transmitting power to the second upper conveyance device 320 as in the prior art, in the vicinity of the merging portion where the cereal grains of the pieces being conveyed are merged by the conveyance device 60, specifically, the lower conveyance device It is not necessary to provide it in the vicinity of the merge part 182 where the stock side of the grain straws being conveyed by 200 joins or in the vicinity of the merge part 192 where the tips of the grain straws being conveyed by the upper conveyance device 300 meet. Therefore, the structure in the vicinity of the junction can be simplified, and clogging of the cereals in the vicinity of the junction can be suppressed. Further, the power transmission structure to the second upper transfer device 320 can be simplified.

  And since it is what conveys the upper part of the grain straw 173 for one line, the power required in order to drive the 2nd upper conveying apparatus 320 can be lessened. That is, as in the present embodiment, the second upper transfer device 320 can be sufficiently driven even when the power is transmitted from the scraping wheel 131 via the scraping wheel 121 and the transmission device 150.

  Further, the scraping device 100 includes a single scraping wheel 121 of the second scratching device 120 and a scraping wheel 131 of the third scraping device 130 that meshes with the single scraping wheel 121. Is set to be thicker than the thicknesses of the other scraping wheels 111, 112, 132, 141, 142. Thereby, it becomes difficult to disengage the single scoring wheel of the second scoring device and the scoring wheel of the third scoring device. That is, in the scraping device 100, when there is a pair of scraping wheels 131 and 132 as in the third scraping device 130, when sandwiching and transporting the cereal straw, the pair of scraping wheels 131 and 132 are left and right. Distortion occurs symmetrically, and there is no hindrance to the power transmission from one scraper wheel 131 to the other scraper wheel 132. On the other hand, when there is only a single stirrer wheel 121 as in the second stirrer 120, when the grain candy is sandwiched and transported, the single stirrer wheel 121 is also distorted. However, this may not correspond to the distortion generated in the scraping wheel 131, and in some cases, the meshing may be disengaged and the transmission of power from the scraping wheel 131 to the single stirring wheel may be hindered. It was. However, the single scraper wheel 121 and the scraper wheel 131 are thicker than the other scraper wheels 111, 112, 132, 141, and 142, so that they are difficult to disengage from each other. Therefore, power can be reliably transmitted from the scraping wheel 131 of the third scraping device 130 to the single scraping wheel 121 of the second scraping device 120, and eventually to the second upper transport device 320. It can be reliably transmitted from the batting device 130 via the second raking device 120.

  In addition, the scraping device 100 includes a single scraping wheel 121 of the second scraping device 120 and a pair of left and right scraping wheels 131 and 132 of the third scraping device 130. 110, a pair of left and right scraping wheels 111 and 112 and a pair of left and right scraping wheels 141 and 141 of the fourth scraping device 140 are arranged at higher positions. As a result, a single scraping wheel 121 of the second scraping device 120 and a pair of left and right scraping wheels 131 and 132 of the third scraping device 130 and a pair of left and right scraping wheels of the first scraping device 110 It is possible to reduce the distance between each other while avoiding interference with 111 and 112. Also, a single scraper wheel 121 of the second scraper 120, a pair of left and right scrapers 131 and 132 of the third scraper 130, and a pair of left and right scrapers 141 of the fourth scraper 140. -The interference with 142 can be avoided and the distance between each other can be reduced. At the same time, in the scraping device 100, the single scraping belt 122 of the second scraping device 120 and the pair of left and right scraping belts 133 and 134 of the third scraping device 130 are the left and right of the first scraping device 110. The pair of scrambling belts 113 and 114 and the pair of left and right scoring belts 143 and 144 of the fourth scoring device 140 are disposed at higher positions. Thereby, similarly to the above, the single scraping belt 122 of the second scraping device 120 and the pair of left and right scraping belts 133 and 134 of the third scraping device 130 and the pair of right and left of the first scraping device 110 are arranged. It is possible to avoid interference with the scraping belts 113 and 114 and to reduce the distance between them. In addition, the single scraping belt 122 of the second scraping device 120, the pair of left and right scraping belts 133 and 134 of the third scraping device 130, and the pair of left and right scraping belts 143 of the fourth scratching device 140. -The interference with 144 can be avoided and the distance between each other can be reduced. Therefore, the space | interval of adjacent scraping apparatuses can be narrowed in the left-right direction, and the installation part of a scraping apparatus and by extension, the cutting part 4 can be comprised compactly.

  In addition, a single scraper wheel 132 on the right side of the third scraper 130 and a single one of the second scraper 120 that are juxtaposed on both left and right sides from one scraper 131 of the third scraper 130. It is comprised so that motive power may be transmitted to the picking wheel 121. FIG. Thereby, power is allocated with good balance from the picking wheel 131 to the two picking wheels 121 and 132 arranged in parallel on the left and right sides of the picking wheel 131. Therefore, the load on each of the scraping wheels 121, 131, 132 is distributed, and the failure rate of the second scraping device 120 and the third scraping device 130 can be reduced.

  Further, the scraping wheel 121 of the second scraping device 120 and the right scraping wheel 131 of the third scraping device 130 are meshed and arranged in parallel, and the first transmitted by the power transmitted from the scraping wheel 121 is the first. The second lower transfer device 220 is configured to be driven. As a result, the transmission device for transmitting power to the second lower conveying device 220 as in the prior art is in the vicinity of the merging portion where the grains of the stalks being conveyed by the conveying device 60 merge, specifically, the lower conveying The apparatus 200 does not have to be provided in the vicinity of the junction 182 where the stocker side of the grain culm being transported joins, or in the vicinity of the merger 192 where the tip of the grain cocoon being transported by the upper transport device 300 joins. Therefore, the structure in the vicinity of the junction can be simplified, and clogging of the cereals in the vicinity of the junction can be suppressed. In addition, a transmission device such as a drive shaft that transmits power to the second lower conveyance device 220 is not necessary. That is, the power transmission structure to the second lower transfer device 220 can be simplified and the number of parts can be reduced.

  In the present embodiment, the scoring device 100 is configured to convey the cereal rice flour for the left and right central side into three parts on the right side and two on the left side, and convey it to the rear side. Swapping device 120 and third scrambling device 130 are reversed left and right, second lower transport device 220 and third lower transport device 230 are interchanged left and right, second upper transport device 320 and third upper transport device As a structure in which 330 is replaced, it is also possible to divide the left and right central three-row cereal into two pieces on the right side and one piece on the left side and transport it backward.

  In addition, a plurality of scoring devices having a pair of left and right scoring wheels and a scoring belt are arranged side by side to constitute a trimming part for even-numbered trimming, and a single scoring wheel and When further arranging the scoring device having a scoring belt to configure the cutting part for odd-numbered trimming, only by composing a single scoring wheel with a pair of left and right scoring wheels, A power transmission mechanism to a single scraping device can be easily configured. Furthermore, when it is set as the structure which transmits motive power from the meshed single picking wheel to the lower conveying apparatus which conveys the stock source of the single squeezed cereal and the upper conveying apparatus which conveys the tip, these The power transmission structure to the lower transfer device and the upper transfer device can be simplified.

DESCRIPTION OF SYMBOLS 1 Combine 4 Cutting part 100 Scratching device 110 1st scraping device 120 2nd scraping device 130 3rd scraping device 140 4th scraping device 200 Lower conveying device 210 First lower conveying device 220 Second lower conveying device 230 Third lower transfer device 240 Fourth lower transfer device 300 Upper transfer device 310 First upper transfer device 320 Second upper transfer device 330 Third upper transfer device 340 Fourth upper transfer device 111 Scraping ring 112 Scratch ring 121 Scratch Stirring wheel 131 Stirring wheel 132 Stirring wheel 141 Stirring wheel 142 Stirring wheel 113 Straining belt 114 Straining belt 122 Straining belt 133 Straining belt 134 Straining belt 143 Straining belt 144 Scratching belt 144 Scratching belt 144

Claims (3)

In the harvesting part of the combine comprising the pulling device, the scraping device, the cutting device, and the conveying device,
The scraping device is
A first scoring device that scrapes the right side of the cereals with a pair of left and right scoring wheels and a scoring belt;
A second scoring device that stirs cereal grains for one side of the left and right center side with a single scooping wheel and a scooping belt;
A third scoring device that stirs the remaining 2 grain cereals out of the 3 left and right middle strips with a pair of left and right scraping wheels and a scraping belt;
A fourth scraping device that scrapes the left side of the cereals with a pair of left and right scraping wheels and a scraping belt,
Meshing the single scoring wheel of the second scoring device and the scoring wheel adjacent to the single scoring wheel of the third scoring device;
The transfer device
A first upper transport device that transports the tip of the cereal that has been stirred by the first scraping device;
A second upper transporting device for transporting the tip of the cereal that has been stirred by the second scraping device;
A third upper transporting device for transporting the tip of the cereal that has been stirred by the third scraping device;
A fourth upper transport device that transports the tip of the cereal squeezed by the fourth scraping device,
A transmission device is configured by a drive sprocket, a chain, a driven sprocket, and a cover member that protrude upward from the rotation shaft of the stirrer wheel of the second scraping device, and are fixed to the rotation shaft.
The transmission device protrudes rearward, a driven rotation shaft extending in parallel with the rotation shaft is supported at the rear of the transmission device, and the driven sprocket is fixed to the driven rotation shaft,
A rotating plate is fixed to a portion where the driven rotating shaft protrudes upward from the transmission device, the rotating plate, a plurality of tines that are pivotally supported by the outer peripheral portion of the rotating plate and project in the circumferential direction, and a guide member And the upper and lower plates constitute the second upper transport device,
Combine harvesting , wherein power is transmitted to the second upper transport device from a scraping wheel of the third scraping device via a single scraping wheel of the second scraping device. Department.   The scraping device is configured to determine the thicknesses of a single scoring wheel of the second scoring device and a scoring wheel of the third scoring device that meshes with the single scoring wheel. The combine harvester according to claim 1, wherein the combine harvester is set to be thicker than the thickness of the insert ring.   The above-mentioned scoring device includes a single scoring wheel of the second scoring device and a pair of left and right scoring wheels of the third scoring device. 3. The combine harvester according to claim 1 or 2, wherein the combine harvester is disposed at a position higher than the pair of left and right scraping wheels of the fourth scraping device.

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