JP6594830B2 - Combine - Google Patents

Description

  The present invention relates to a combine equipped with a reaping part for reaping uncut cereal grains in a field and a threshing part for threshing grains of the harvested cereal grains.

  Conventionally, a cutting part having a grain header, a feeder house and a cutting blade, a threshing part having a handling cylinder, a traveling machine body provided with a traveling part and an engine, and a bowl receiving a grain from the threshing part via a grain discharge conveyor There is a technology that includes a portion, continuously chops uncooked cereal grains in the field and threshs, and fills the sack bag of the culm receiving part with the grains of the threshing part (see Patent Documents 1 to 3).

JP 2005-192525 A JP 2012-126325 A Japanese Utility Model Publication No. 62-059719

  In Patent Literature 1 to Patent Literature 2, a cooling cooler fan is attached to an intermediate shaft provided in a transmission path between an engine and a hydraulic continuously variable transmission. However, the cooling cooler fan is applied to a large combine used for a harvesting operation in a large-area field. The radiator for cooling the engine with water is cooled. On the other hand, in a harvesting operation in a small-area farm, a light-weight combine that allows a compact configuration of the entire machine body while ensuring the harvesting width of the cereals is used. Traveling with a hydraulic continuously variable transmission provided in the transmission case for driving the traveling unit, an oil cooler that cools the hydraulic oil of the hydraulic continuously variable transmission, and a cooling cooler fan, while considering downsizing of the entire combine Improvements in performance or simplification of maneuvering operations are desired. Since Patent Document 1 is a traveling unit drive structure suitable for a high-power engine, there is a structural problem such that a traveling unit drive structure suitable for a small-power engine mounted on a small and light-weight combine cannot be easily configured. is there. For example, the threshing unit is mounted on the upper surface of the traveling machine body in a horizontal orientation directed in the left-right direction, the engine and the hook receiving part are disposed behind the threshing part, and the left and right rear parts of the rear side of the traveling machine body There is a structural problem such as that it is not possible to construct a combine with a small and light structure by arranging the rod receiving part and the steering column side by side.

  Moreover, in patent document 3, in order to take in the cooling air which cools the radiator in an engine room, the intake duct is provided in the engine room outer side, However, It is intended for a large combine. However, in a small combine, for example, when an oil cooler and a cooling cooler fan for cooling the hydraulic oil of a hydraulic continuously variable transmission are provided, it is necessary to provide an intake duct for taking in cooling air for cooling the oil cooler. There is a problem that a sufficient cooling effect cannot be obtained due to buffering with other parts.

  Therefore, the present invention seeks to provide an ordinary combine that has been improved by examining these current conditions.

  In order to achieve the above object, the combine of the present invention includes a cutting part having a cutting blade, a threshing part having a handling cylinder, a traveling machine body provided with a traveling part and an engine, and a threshing part via a grain discharge conveyor. An oil cooler that cools the hydraulic oil of the hydraulic continuously variable transmission is provided by a cooling cooler fan in a combine that includes a sorting unit that sorts grain and includes a hydraulic continuously variable transmission in a transmission case for driving the traveling unit. Is installed on the outside of the machine, the opposite side of the oil cooler from the cooling cooler fan is covered with a suction duct, and the suction duct has a triangular shape with at least a lower surface opened and an inclined upper surface. These are arranged below the sorting unit.

  In the combine, the traveling direction of the traveling machine body may be a front-rear direction, the suction duct may protrude in the left-right direction with respect to the oil cooler, and the front-rear surface of the suction duct may be opened. .

  In the combine, a basket receiving column supporting the sorting unit is erected from the traveling machine body, and a basket receiving arm on which the bag is suspended is cantilevered behind the basket receiving column, and the suction duct The suction duct may be installed behind the rod receiving column such that the inclined upper surface is positioned below the rod receiving arm.

  In the above combine, the sorting unit includes a wind-selective meandering passage communicating with the outlet of the grain discharge conveyor, and a filling hopper for feeding the grains into the straw bag is behind the sorting unit and the wind-selective meandering passage The suction fan device is connected to the wind-selective meandering passage in front of the sorting unit, and the soot receiving column is disposed between the dust exhaust port of the suction fan device and the soot input port of the filling hopper. And the suction duct may be disposed.

  According to the present invention, since the lower surface of the suction duct is opened to form the outside air intake port, the suction of dust and dust falling from above is small, and the cooling effect in the oil cooler can be maintained. In addition, since the suction duct has an inclined surface whose upper surface is inclined, a space can be provided above the suction duct, and for example, a storage place for a spare bag can be configured. In addition, even when the storage bag is a spare bag space above the suction duct, the outside air intake port on the lower surface of the suction duct is not blocked, so the cooling effect in the oil cooler may be reduced. Absent.

  According to the present invention, the front and rear surfaces of the suction duct are opened to form the outside air intake, so that it is possible to prevent a shortage of cooling air with respect to the capacity of the oil cooler.

  According to the present invention, since the saddle receiving arm body can be spaced apart from the inclined surface with the upper surface of the suction duct inclined upward, the spare bag bag that is hung and stored on the saddle receiving arm body is provided in the opening of the suction duct. It does not hang down on the part. That is, the outside air inlet provided in the suction duct is not blocked by a spare bag or the like, and a reduction in the amount of outside air taken into the suction duct can be prevented.

  According to the present invention, the soot receiving column is disposed between the dust outlet of the suction fan device and the suction duct, so that the soot receiving column in front of the suction duct becomes an obstacle, Outside air with little dust can be taken into the suction duct. Further, since the suction duct is installed in front of the soot inlet of the filling hopper, the soot bag attached to the soot inlet becomes an obstacle, and the amount of soot contained in the outside air taken into the suction duct can be suppressed. Accordingly, it is possible to reduce the amount of dust and soot attached to the dust net of the outside air intake port provided in the suction duct, and to suppress the deterioration of the cooling effect of the oil cooler.

It is a left view of the normal type combine which shows embodiment of this invention. It is a top view of the combine. It is a right view of the combine. FIG. 2 is an enlarged explanatory view of FIG. 1. FIG. 3 is an enlarged explanatory view of FIG. 2. FIG. 4 is an enlarged explanatory view of FIG. 3. It is a perspective view of the traveling machine body seen from the left rear. FIG. 8 is an enlarged explanatory diagram of FIG. 7. It is a perspective view of the traveling body viewed from the right front. FIG. 10 is an enlarged explanatory view of FIG. 9. It is a drive system diagram of a normal type combine. It is a hydraulic circuit diagram of a normal type combine. It is right side explanatory drawing which shows the drive transmission part of an engine. It is expansion explanatory drawing of FIG. It is right side sectional drawing of a threshing part. It is a perspective view which shows the structure of the drive system around a cooling cooler. It is a perspective view which shows the structure of the engine periphery seen from the left back. It is a perspective view which shows the periphery structure of a cooling air intake duct body. It is a perspective view which shows the internal structure of a cooling air intake duct body. It is a disassembled perspective view which shows the attachment structure of a cooling air intake duct body. It is a left view which shows the structure of a grain extraction part lower side. It is a perspective view of the grain extraction part seen from the left rear. It is a perspective view which shows the support structure of a grain extraction part. It is a perspective view of the grain extraction part seen from the left front. It is a perspective view of the grain extraction part seen from the right side back. It is a left view of a grain extraction part. FIG. 27 is an enlarged explanatory diagram of FIG. 26. It is a perspective view which shows the structure of the engine periphery seen from the right side rear.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings (FIGS. 1 to 28) applied to an ordinary combine. First, the general structure of a general combine will be described with reference to FIGS. 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.

  As shown in FIGS. 1 to 6 and the like, the ordinary combine in the embodiment includes a traveling machine body 1 supported by a pair of left and right crawler belts 2 made of rubber crawlers as a traveling portion. At the front part of the traveling machine body 1, a harvesting part 3 that is taken in while harvesting uncut grain cereal such as rice (or wheat) is mounted by a single-acting lifting hydraulic cylinder 4 so as to be adjustable up and down.

  A threshing unit 9 for threshing the harvested cereal meal supplied from the harvesting unit 3 is mounted on the front upper surface of the traveling machine body 1. Inside the threshing unit 9, a handling cylinder 21 is disposed as a cereal threshing rotor described later. On the right side of the rear part of the traveling machine body 1, a driving operation unit 5 that is operated by an operator while walking is mounted. An engine 7 as a power source for each part of the combine is disposed in the central part of the traveling machine body 1. On the rear left side of the traveling machine body 1 (on the left side of the driving operation unit 5), a ridge receiving unit 6 for taking out the grain from the threshing unit 9 is arranged. The grain in the threshing part 9 is carried out by the grain discharge conveyor 8 toward the jar receiving part 6. An air passage forming duct body 10 serving as a grain sorting unit for sorting out cereals is provided at the feed terminal of the grain discharge conveyor 8 in a low posture before and after high posture.

  The mowing unit 3 includes a feeder house 11 that communicates with the handling port supply unit at the front part of the threshing unit 9 and a horizontally long bucket-like grain header 12 that is provided continuously at the front end of the feeder house 11. A scraping auger 13 (platform auger) is rotatably supported in the grain header 12. A take-up reel 14 with a tine bar is disposed above the front portion of the take-up auger 13. A clipper-shaped cutting blade 15 is disposed in front of the grain header 12. Left and right weed bodies 16 are provided to project from the left and right sides of the front part of the grain header 12. In addition, a supply conveyor 17 is installed in the feeder house 11. The lower surface portion of the feeder house 11 and the front end portion of the traveling machine body 1 are connected via a lifting hydraulic cylinder 4, and the cutting portion 3 moves up and down using a cutting input shaft 18 (feeder house conveyor shaft) described later as a lifting fulcrum. The hydraulic cylinder 4 is moved up and down.

  With the above configuration, the tip of the uncut grain culm between the left and right weed bodies 16 is scraped by the scraping reel 14, and the uncut grain culm is trimmed by the cutting blade 15. The harvested cereal grains are collected near the entrance of the feeder house 11 near the center of the left and right width of the grain header 12. The whole amount of the harvested cereal meal of the grain header 12 is conveyed by the supply conveyor 17 in the feeder house 11 and is put into the treatment chamber 22 from the treatment port supply plate 9a provided on the left side of the threshing part 9. ing.

  Moreover, as shown in FIGS. 4-6 etc., the handling cylinder 21 is rotatably provided in the handling chamber 22 of the threshing part 9. A handling cylinder 21 is pivotally supported on a handling cylinder shaft 20 extended in the left-right direction of the traveling machine body 1. On the lower side of the handling cylinder 21, a receiving net 24 for allowing the grains to leak is stretched. In addition, a handling port supply plate 9 a that communicates with the cereal feed end side of the supply conveyor 17 is formed in the lower left portion of the handling chamber 22, while a dust outlet 23 is formed in the lower right portion of the handling chamber 22. . That is, a horizontal handling posture cylinder 21 is mounted on the front part of the traveling machine body 1 and the feeder house 11 is disposed at the left end of the threshing part 9, and the feeder house 11 that is long in the front-rear direction is provided. It is comprised so that the moving direction of the harvested cereal meal in the threshing part 9 of the horizontal placement posture may be changed to the orthogonal direction.

  With the above-described configuration, the harvested cereal mash introduced from the handling port supply plate 9 a by the supply conveyor 17 is conveyed from the left side to the right side of the traveling machine body 1 by the rotation of the handling cylinder 21, while the handling cylinder 21 and the receiving net 24. And kneaded in between. The threshing of grains or the like smaller than the mesh of the receiving net 24 leaks from the receiving net 24. The sawdust or the like that does not leak from the receiving net 24 is discharged from the dust outlet 23 on the lower right side of the handling chamber 22 to the cut surface of the farm field through the upper surface side of the right crawler belt 2 by the conveying action of the handling cylinder 21. It is configured.

  Moreover, as shown in FIGS. 4-10 etc., the air-path formation duct arrange | positioned in the feed terminal part of the grain discharge conveyor 8 rear end side of the front low rear high posture as a grain classification | selection part which performs the grain removal selection A body 10 and a suction fan device 34 that sucks and discharges dust by introducing a sorting wind into the air passage forming duct body 10 are provided. A grain takeout conveyor 36 is placed horizontally below the receiving net 24, and the threshing that has been threshed by the handling cylinder 21 and leaked from the receiving net 24 is made to pass through the grain takeout conveyor 36 and the grain discharge conveyor 8. The cereal grains carried into the air passage forming duct body 10 through the air passage forming duct body 10 are converted into heavy grains, light shavings, and the like by the air sorting action of the suction fan device 34. It is configured to be sorted.

  On the other hand, on the left side of the threshing unit 9, the grain discharge conveyor 8 is extended between the threshing unit 9 and the basket receiving unit 6 in a front low and high posture. The feed start end side of the front end portion of the grain discharge conveyor 8 is connected to the feed end side of the left end portion of the grain take-out conveyor 36. A grain take-out conveyor 36 is provided inside the V-shaped grain take-out bottom of the threshing section 9. The grains that have leaked from the receiving net 24 to the grain takeout conveyor 36 are transferred from the left end of the grain takeout conveyor 36 to the front end of the grain discharge conveyor 8, and the air passage forming duct on the rear end side of the grain discharge conveyor 8. It is configured to be transferred from the body 10 to the bag receiving unit 6 and collected in the bag 37 of the bag receiving unit 6.

  That is, the saddle receiving portion 6 is connected to the left rear end portion of the traveling machine body 1 via the base support frame 38a, and the saddle receiver attached to the left rear end portion of the traveling machine body 1 via the support frame body 39. An arm body 39a is provided. Further, the air passage forming duct body 10 is supported on the upper end side of the support frame body 39, and the filling hopper 19 is provided at the grain outlet of the air passage forming duct body 10, and the straw bag 37 is attached to the straw receiving arm body 39a. The opening of the straw bag 37 is attached to the hanging and filling hopper 19, and the grains discharged from the filling hopper 19 are filled into the straw bag 37.

  On the other hand, as shown in FIGS. 4 to 6 and the like, a steering column 41 is disposed in the driving operation unit 5. The steering column 41 is used to drive or stop the left and right side clutch levers 43 and 44 that change the course of the traveling machine body 1, the traveling speed change lever 45 that switches the traveling speed of the traveling machine body 1, and the reaping part 3 or the threshing part 9. A working clutch lever 46, a cutting lift lever 47 for lifting and lowering the cutting unit 3, and a parking brake lever 48 are arranged. In addition, a walking handle 49 is protruded rearward on the rear side of the steering column 41, and the accelerator lever 40 is attached to the left grip portion of the walking handle 49. Left and right side clutch levers 43, 44, a mowing lift lever 47, and a travel speed change lever 45 are arranged in parallel in order from the right side on the upper surface side of the control column 41, and the operation position of the travel speed change lever 45 on the inner side of the body is set. It is formed higher than the operation position of the other levers 43, 44, 46, 47, and the traveling speed change lever 45 that is operated less frequently during the harvesting operation that moves the field at a substantially constant speed is supported on the inner side of the machine body. The side clutch levers 43 and 44 and the mowing lift lever 47, which are frequently operated during work, are configured to be supported on the outer side of the machine body.

  As shown in FIGS. 7 to 10 and the like, a driver seat 42 on which an operator sits is detachably disposed behind the steering column 41. A driver's seat bracket body 111 is provided at the right rear end portion of the traveling machine body 1, and the front end portion of the driver's seat frame 112 is detachably bolted to the driver seat bracket body 111. Further, the rear end side of the driver's seat frame 112 extends substantially horizontally from the right rear end of the upper fuselage frame 1b to the rear, and the driver seat 42 is attached to the rear end portion of the driver's seat frame 112. A driver's seat 42 is arranged behind the driver's operation unit 5 via the driver so that an operator sitting on the driver's seat 42 can operate the levers 43, 44, 45, 46, 47, 48, etc. of the driver's operating unit 5. is doing.

  Further, as shown in FIGS. 7 to 10 and the like, a foot guard body 114 disposed between the feet of the operator sitting on the driver's seat 42 and the rear end portion of the right crawler belt 2 is provided. The guard body support frame 115 is extended downward from the lower surface side of the driver seat bracket body 111, the foot guard body 114 is fixed to the guard body support frame 115, and the operator's feet are in contact with the right crawler belt 2. The foot guard body 114 is configured to block. In addition, the footrest frame 112a is extended downward from the front and rear intermediate portion of the driver seat frame 112, the footrest 113 is fixed to the lower end portion of the footrest frame 112a, and the operator seated on the driver seat 42 The foot is configured to be placed on the footrest 113.

  Further, as shown in FIGS. 7 to 10 and the like, left and right front support legs 32 and rear support legs 33 project downward from the lower surface side of the traveling machine body 1, and the left and right support leg bodies 32, The left and right track frames 50 are arranged via 33. The track frame 50 has a drive sprocket 51 that transmits the power of the engine 7 to the crawler belt 2, a tension roller 52 that is supported via a tension mechanism 53 that maintains the tension of the crawler belt 2, and the ground side of the crawler belt 2 is held in a grounded state. A plurality of track rollers 54 are provided. The front side of the crawler belt 2 is supported by the tension roller 52, the rear side of the crawler belt 2 is supported by the drive sprocket 51, the ground side of the crawler belt 2 is supported in a horizontal posture by the track roller 54, and the non-ground side of the crawler belt 2 is It is configured to support a low rear and high posture.

  Next, the combine drive structure will be described with reference to FIGS. As shown in FIGS. 7 to 12 and the like, a transmission continuously variable hydraulic continuously variable transmission 64 incorporating a traveling hydraulic pump 30 and a traveling hydraulic motor 31 is provided in a transmission case 63. The engine 7 is mounted on the center upper surface of the traveling machine body 1, and a mission case 63 is disposed at the rear of the traveling machine body 1 behind the engine 7. Further, a travel drive pulley 69 on the engine output shaft 65 projecting leftward from the engine 7 and a shift input pulley 70 on the speed change input shaft 66 projecting leftward from the transmission case 63 are connected to the front travel output belt 67a. And the rear traveling output belt 67b.

  In addition, the front traveling tension belt 68a is tensioned by the front traveling tension pulley 68a, and the rear traveling output belt 67b is tensioned by the rear traveling tension pulley 68b to transmit power from the engine 7 to the transmission case 63. The left and right crawler belts 2 are configured to be driven. As shown in FIGS. 8 and 14, the input pulley fan 70a is fixed to the outer surface of the left side of the transmission input pulley 70, and the hydraulic continuously variable transmission 64 is cooled by the input pulley fan 70a. Yes.

  In addition, as shown in FIGS. 10, 13, 14, and the like, the intermediate frame 131 is erected on the traveling machine body 1 in a backward inclined posture, and the left intermediate pulley 133 is connected to the upper end side of the intermediate frame 131 via the intermediate shaft 132. And the right intermediate pulley 134 are pivotally supported integrally, and the front traveling output belt 67a is hung around the traveling driving pulley 69 and the left intermediate pulley 133 via the front traveling tension pulley 68a. A rear traveling output belt 67b is wound around a rear traveling tension pulley 68b between the transmission 134 and the transmission input pulley 70. The transmission case 63 on the rear side of the engine 7 is disposed closer to the right side of the body with respect to the center line of the longitudinal direction of the body, and the mounting position of the transmission input pulley 70 is formed closer to the center of the traveling body 1 than the mounting position of the traveling drive pulley 69. .

  The input pulley fan 70a supported by the transmission input pulley 70 on the rear end side of the rear traveling output belt 67b is disposed on the rear side of the front traveling output belt 67a. A hydraulic continuously variable transmission 64 can be integrally mounted and fixed on the upper part of the transmission case 63 between the left and right crawler tracks 2 behind the engine 7, and the heavy-duty engine 7 and the transmission case 63 are connected to the center of the left and right width of the body (front and rear of the body). The weight balance in the left-right direction of the aircraft is well formed.

  As shown in FIG. 7 to FIG. 11, FIG. 13 to FIG. 15, etc., a counter shaft 72 for driving the cutting part 3 and the handling cylinder 21 is provided. A counter shaft 72 is rotatably provided on the upper surface side of the traveling machine body 1 (upper machine frame 1b) via the left bearing body 71a and the right bearing body 71b. A threshing drive pulley 57 on the output shaft 65 protruding leftward from the engine 7 and a counter shaft pulley 58 at the left end of the counter shaft 72 are connected via a threshing drive belt 59. The threshing drive belt 59 is tensioned by the tension roller type work clutch 60, and power is transmitted from the engine 7 to the counter shaft 72.

  A counter shaft sprocket 73 is pivotally supported at the right end portion of the counter shaft 72. A countershaft sprocket 73 and a handlebar shaft input sprocket 74 at the right end of the handlebar shaft 20 are connected by a threshing drive chain 75, and the handlebar cylinder 21 is driven via the countershaft 72. Further, a grain delivery sprocket 76 is pivotally supported on the right end of the barrel 20. The grain delivery sprocket 76 and the delivery input sprocket 77 at the right end of the grain takeout conveyor 36 are connected by a delivery drive chain 78, and the grain takeout conveyor 36 is driven via the counter shaft 72. Yes.

  In addition, the feed start end side of the grain discharge conveyor 8 is connected to the left end of the grain take-out conveyor 36 via a grain discharge sprocket 79. The grain discharge conveyor 8 has an endless belt-like grain discharge chain 8a and a plurality of grain discharge plates 8b arranged at equal intervals on the grain discharge chain 8a. The grain discharge chain 8a is hung around the grain discharge sprocket 79, the grain extraction conveyor 36 and the grain discharge conveyor 8 are driven in conjunction, and a plurality of grains are extracted from the left end of the grain extraction conveyor 36. The grain discharge plate body 8b is configured to convey the bottom plate of the grain discharge conveyor 8 toward the air duct forming duct body 10 along the bottom plate.

  On the other hand, the fan drive pulley 82 on the left end of the counter shaft 72 and the blower fan pulley 83 on the fan shaft 34 a of the suction fan device 34 are connected by a fan drive belt 84 that is tension-supported by the fan tension pulley 81. Yes. The power from the engine 7 is transmitted to the cylinder 21 and the suction / exhaust dust fan 34b of the suction fan device 34 via the counter shaft 72, so that the cylinder 21 and the intake / exhaust dust fan 34b are driven in conjunction with each other. ing. By operating the work clutch 60 of the work clutch lever 46 disposed on the left side of the control column 41, each part of the threshing part 9 (the handling cylinder 21, each conveyor 8, 36, and the dust suction / discharge fan 34b) is set at a constant rotational speed. Driving.

  Next, the drive structure of the cutting unit 3 will be described with reference to FIGS. 1 to 3 and FIGS. 7 to 11. A handling shaft output sprocket 85 provided at the left end portion of the handling shaft 20 and a cutting input sprocket 86 provided at the left end portion of the cutting input shaft 18 which is a lifting fulcrum of the cutting portion 3 are connected by a cutting input chain 87. The barrel 21 and the supply conveyor 17 are driven in conjunction with each other via a cutting input shaft 18 that supports the entire cutting unit 3 so as to be movable up and down. In addition, a header drive shaft 91 is provided on the rear surface side of the grain header 12 left side of the cutting unit 3 via a pair of header drive bearing bodies 141. The left end of the cutting input shaft 18 is connected to the right end of the header drive shaft 91 via header drive sprockets 88 and 89 and a header drive chain 90.

  Further, the grain header 12 is provided with a scraping shaft 93 that pivotally supports the scraping auger 13. The left end portion of the header drive shaft 91 is connected to the left end portion of the take-in shaft 93 via a take-in drive chain 92 and take-in drive sprockets 94 and 95. The scraping auger 13 is driven via the cutting input shaft 18 and the header drive shaft 91.

  Further, as shown in FIG. 1 to FIG. 3 and the like, a reel support frame 151 base end is fixed to the upper surface of the grain header 12. In addition, a reel shaft 96 that pivotally supports the take-up reel 14 is provided, and the left and right end portions of the reel shaft 96 are pivotally supported at the front end portions of the left and right reel support frames 151. The scraping reel 14 is supported on the upper surface side of the grain header 12 via left and right reel support frames 151. Note that a reel support arm 155 that supports an intermediate portion of the left and right reel support frames 151 is provided on the left and right sides of the grain header 12.

  Further, as shown in FIG. 7 to FIG. 11 and the like, a reel drive shaft 153 is provided on the right side surface portion of the grain header 12, and a reel drive sprocket 98 and a reel drive pulley 161 are supported on the reel drive shaft 153 and a reel drive. The sprocket 98 and the reel drive pulley 161 are integrally fixed. A reel drive chain 97 is wound around a reel input sprocket 99 and a reel drive sprocket 98 provided at the right end of the take-in shaft 93. A reel drive belt 164 is wound around a reel driven pulley 163 and a reel drive pulley 161 provided at the right end of the reel shaft 96.

  In addition, a reel drive tension pulley 166 is pivotally supported at the tip of the reel drive tension arm 165 so as to be rotatable. A reel shaft 96 is linked to the header drive shaft 91 via a reel drive chain 97 and a reel drive belt 164. The reel driving shaft 153 supports the base end of the reel driving tension arm 165, the reel driving belt 164 is pressed against the reel driving tension pulley 166 by the reel driving tension spring force, and the reel driving tension pulley 166 causes the reel driving belt to rotate. Supports 164 in tension. In addition, a scraping drive chain 92 is installed in the chain cover body 169 on the left side of the cutting unit 3, and a reel driving belt 164 is installed in the belt cover body 170 on the right side of the cutting unit 3.

  Further, the cutting blade 15 is connected to the right end portion of the driving shaft 93 via the cutting blade drive crank mechanism 100. By the operation of the work clutch lever 46 with the work clutch 60, each part of the cutting unit 3 (the supply conveyor 17, the take-up auger 13, the take-up reel 14, and the cutting blade 15) is driven, and the uncut rice in the field It is configured to continuously cut the tip side of the reed. The cutting blade drive crank mechanism 100 is installed in the cutting blade drive cover body 171 on the right side of the cutting unit 3.

  Next, the hydraulic circuit structure of the combine will be described with reference to FIG. As shown in FIG. 12, the traveling hydraulic pump 30 and the traveling hydraulic motor 31 of the hydraulic continuously variable transmission 64 for traveling speed change are connected by a closed loop hydraulic circuit 211 and a charge pump 212 that supplies hydraulic oil to the closed loop hydraulic circuit 211. Is provided. In addition, an elevating hydraulic circuit 214 having an elevating valve 213 is provided, and a working pump 215 for moving the elevating hydraulic cylinder 4 up and moving the elevating valve 213 by operating the cutting elevating lever 47 is provided. The charge pump 212 and the work pump 215 are configured to be driven in conjunction with the traveling hydraulic pump 30 via the transmission input shaft 66.

  With the above configuration, the hydraulic oil in the hydraulic oil tank 55 is pumped to the hydraulic continuously variable transmission 64 or the lifting hydraulic circuit 214 by the charge pump 212 and the work pump 215, and traveled by the traveling hydraulic pump 30. While the hydraulic motor 31 is actuated to output continuously variable speed, the working pump 215 moves up and down the hydraulic cylinder 4 to raise and lower the cutting unit 3. In addition, the hydraulic oil is returned from the hydraulic continuously variable transmission 64 or the lift hydraulic circuit 214 to the hydraulic oil tank 55 via the oil cooler 217. The oil cooler 217 is configured to be air-cooled by a cooling cooler fan 218 provided on the intermediate shaft 132 to maintain the hydraulic oil in the hydraulic oil tank 55 at a predetermined temperature or lower.

  Next, the structure of the traveling aircraft body 1 will be described with reference to FIGS. 4 to 10 and FIGS. 13 to 15. The traveling machine body 1 is configured in a vertical multistage eaves structure by the lower machine body frame 1a, the upper machine body frame 1b, and the support frame 1c. The left and right track frames 50 are fixed to the lower surface side of the lower body frame 1 a via the front support legs 32 and the rear support legs 33, and the left and right crawler belts 2 are mounted via the left and right track frames 50. Further, the lower surface of the engine 7 is connected to the mounting portion on the upper surface of the upper body frame 1b, and the engine 7 is mounted on the upper body frame 1b. The engine 7 is a traveling body 1 between the driving operation section 5 and the saddle receiving section 6. Located in the center.

  That is, the engine 7 is arranged at the center of the left and right width of the traveling machine body 1, and the driving operation unit 5 is arranged at the rear part of the upper body frame 1 b on the right side of the engine 7 (rear right side of the traveling machine body 1) centering on the engine 7. A saddle receiving portion 6 is arranged at the rear of the upper body frame 1b on the left side of the engine 7 (the rear left side of the traveling body 1), and a hydraulic oil tank is disposed on the upper right side of the upper body frame 1b on which the engine 7 is mounted. 55 and a battery 56 are arranged. The battery 56 is used as a starting power source for the engine 7.

  Further, the upper body frame 1b protrudes left and right with respect to the lower body frame 1a. The left rear part of the upper body frame 1b extends outward from the left crawler belt 2, and a support frame body 39 that supports the air passage forming duct body 10 is erected on the extended part of the left rear part. . On the other hand, the right side portion of the upper body frame 1b extends toward the upper side of the right crawler belt 2, and the driving operation unit 5 is installed at the rear end portion of the right side portion. In addition, a hydraulic oil tank 55 and a battery 56 are mounted in order from the front on the upper surface of the extended portion in the right side portion of the upper body frame 1b.

  On the other hand, the front end side of the lower fuselage frame 1a extends forward from the front end side of the upper fuselage frame 1b, and the bottom portion of the threshing portion 9 is placed on the upper surface of the front end side of the lower fuselage frame 1a. The engine 7 is installed on the upper surface of the upper body frame 1b on the rear side of the threshing part 9, and the upper surface height of the threshing part 9 and the height of the upper surface of the engine 7 are made to coincide with each other. An installation surface (upper surface of the lower machine frame 1a) of the threshing portion 9 is formed lower than the upper machine frame 1b (upper surface). A handling port supply plate 9 a is arranged at a low position on the left front part of the threshing unit 9, and a handling port 9 b (cutting grain culm inlet) of the threshing unit 9 is configured at a low position of the traveling machine body 1.

  A lifting hydraulic cylinder 4 is attached to the front end of the lower body frame 1a. The hydraulic oil tank 55 is disposed on the upper right side of the upper body frame 1 b and the hydraulic oil such as the lifting hydraulic cylinder 4 is stored in the hydraulic oil tank 55. A hydraulic oil tank 55 and a battery 56 are mounted side by side on the right side of the engine 7 on the upper surface of the upper body frame 1b. That is, the hydraulic oil tank 55 is mounted on the right front end portion (the rear surface of the threshing portion 9) of the upper body frame 1b, and the battery 56 is mounted behind the hydraulic oil tank 55.

  On the other hand, the rear ends of the lower body frame 1a are connected to the rear ends of the left and right track frames 50 by the left and right rear support legs 33, and the upper ends of the left and right rear support legs 33 are extended toward the rear upper side of the lower body frame 1a. The left and right axle cases 63a on both sides of the transmission case 63 are detachably supported on the upper ends of the left and right rear support legs 33, and the rear end side of the upper fuselage frame 1b is located behind the rear end side of the lower fuselage frame 1a. The upper end side of the transmission case 63 is detachably supported on the rear end side of the upper body frame 1b via the upper connecting body 62. The upper end side of the rear support leg 33 and the upper body frame 1b The mission case 63 is disposed in a backward inclined posture on the rear end side.

  The rear end portions of the left and right crawler belts 2 are stretched over the left and right axle cases 63 a on the lower end side of the transmission case 63 via the left and right drive sprockets 51. That is, the drive sprocket 51 is supported on the upper end side of the rear support leg 33 via the left and right axle cases 63a, and the crawler belt 2 is formed between the tension roller 52 at the front end of the track frame 50 and the drive sprocket 51 on the upper end side of the rear support leg 33. The non-grounding side is stretched, and the non-grounding side of the crawler belt 2 is supported in a front low rear high posture in which the crawler belt 2 is inclined forward and downward.

  On the other hand, a mission protection frame 116 for bolting both ends to the right rear end portion and the left axle case 63a of the upper fuselage frame 1b is provided. The mission protection frame 116 surrounds the rear side of the mission case 63, and the mission protection frame. A mission protection cover 117 is attached to 116, and the upper side and the rear side of the hydraulic continuously variable transmission 64 above the mission case 63 are covered with the mission protection cover 117.

  A counter shaft 72 is installed in a horizontal posture above the upper body frame 1b at the front of the traveling machine body 1. That is, the left bearing mounting base 415 is fixed above the left edge of the front part of the upper body frame 1b, while the right bearing mounting base 416 is fixed above the right extension part of the front part of the upper body frame 1b. The left and right bearing bodies 71a and 71b are fixed to the upper surfaces of the left and right bearing mounting bases 415 and 416 fixed on the upper body frame 1b, so that the counter shaft 72 pivotally supported by the bearing bodies 71a and 71b is provided. The upper body frame 1b is extended in the left-right direction above the front side.

  Further, a side plate support frame 145 and an engine side plate body 146 are erected on the upper left side of the upper body frame 1b, and the side plate support frame 145 and the engine side plate body 146 are connected and fixed, and the threshing tension arm 147 base side of the side plate support frame 145 is provided. The working clutch 60 is disposed on the tip side of the threshing tension arm 147 extended forward, the threshing driving belt 59 is stretched via the working clutch 60, and the counter shaft 72 is connected to the output shaft 65 of the engine 7. ing.

  The fan case 29 of the suction fan device 34 is fixed to the support frame body 39, the suction fan device 34 is disposed on the left side of the engine side plate 146 on the left side of the engine, and the suction fan is provided on the left side of the engine 7 via the engine side plate 146. A device 34 is provided. The suction fan device 34 is configured to suck warm air around the engine 7 through the engine side plate 146. Further, the base end side of the fan tension arm 148 is attached to the lower left side of the upper body frame 1b, and the fan tension pulley 81 is disposed at the front end side of the fan tension arm 148 extending forward, so that the fan shaft 34a and the counter shaft 72 are connected. A fan drive belt 84 to be connected is stretched.

  Further, the front traveling tension arm 149a supported by the front traveling tension pulley 68a is supported by the intermediate frame 131, and the rear traveling tension arm 149b supported by the rear traveling tension pulley 68b is supported by the intermediate frame 131. A belt cover body 183 is stretched on the left side of the engine 7 on which the threshing drive belt 59, the front travel output belt 67a, the rear travel output belt 67b, and the fan drive belt 84 are disposed. The upper surface wall portion of the belt cover body 183 extends in the front-rear direction along the upper surface side of each of the belts 59, 67a, 67b, 84.

  A threshing drive belt 59 that erects an engine side plate 146 on the front side of the side plate support frame 145 and extends in the front-rear direction on the left side of the engine 7, a front travel output belt 67a, a rear travel output belt 67b, a fan The upper surface side and the left side surface side of each of the drive belts 84 are closed by the left side wall portion and the upper surface wall portion of the engine side plate body 146 and the belt cover body 183, and are covered by the engine side plate body 146 and the belt cover body 183. The outside air in the installation spaces of the belts 59, 67 a, 67 b, 84 is configured to be supplied to the oil cooler 217 via the cooling cooler fan 218.

  With the above-described configuration, the engine side plate 146 and the engine side plate 146 are separated from a place where relatively less dust is present in the opening on the lower surface side of the engine side plate 146 and the belt cover body 183 (near the upper body frame 1b installation portion or the engine 7 placement portion). Outside air is sucked into the space covered by the belt cover body 183, and the outside air inside the space can be supplied to the oil cooler 217 by the cooling cooler fan 218. Therefore, air with relatively little dust such as soot can be supplied to the oil cooler 217 as cooling air.

  Further, as shown in FIGS. 16 to 23 and the like, the cooler case body 412 is fixed to the outer surface of the side plate support frame 145 via the case bracket body 411, and the oil cooler 217 and the cooling cooler fan 218 are attached to the cooler case body 412. It is installed internally. The pair of upper and lower case bracket bodies 411 has a front end fixed to an upper end of the side plate support frame 145 and a lower middle portion, and extends rearward. The upper and lower edges of the cooler case body 412 are fixed to each of the pair of upper and lower case bracket bodies 411, so that the cooler case body 412 is disposed behind the support frame body 39 and on the inner side of the saddle receiving arm body 39a. The A cooling air intake opening 451 provided on the left side surface (outer side surface) of the cooler case body 412 is connected to a polygonal box type (triangular box type) cooling air intake duct body (suction duct) 452.

  With the above configuration, outside air is sucked into the cooler case body 412 from the cooling air intake duct body 452 installed in a place where there is relatively little soot under the air path forming duct body 10, and taken into the cooler case body 412. The outside air can be supplied to the oil cooler 217 by the cooling cooler fan 218. Therefore, air with relatively little dust such as soot can be supplied to the oil cooler 217 as cooling air. Further, the oil cooler 217 can be supported with high rigidity by using the side plate support frame 145 without specially installing a support member for the oil cooler 217, and the number of parts to be attached to the oil cooler 217 can be reduced to achieve a low cost. .

  The structure is provided with pulleys 133 and 134 and belts 67a and 67b for transmitting the power of the engine 7 to the hydraulic continuously variable transmission 64, and is provided at the machine outer end of the intermediate shaft 132 on which the pulleys 133 and 134 are pivotally supported. A cooling cooler fan 218 is provided, and an oil cooler 217 is disposed on the outer side of the cooling cooler fan 218. Therefore, the oil cooler 217 can be brought close to the hydraulic continuously variable transmission 64 at the top of the transmission case 63 and can be compactly supported, and air with less dust behind the engine 7 can be supplied to the oil cooler 217 as cooling air.

  The transmission case 1 is disposed on the traveling machine body 1 behind the engine 7, the intermediate shaft 132 is provided on the transmission path between the engine 7 and the hydraulic continuously variable transmission 64 of the transmission case 63, and the intermediate shaft 132 is disposed in the lateral direction of the traveling machine body 1. The cooling cooler fan 218 is attached to the intermediate shaft 132, and the cooling cooler fan 218 is disposed on the opposite side of the steering column 41 with the transmission case 63 interposed therebetween. Therefore, the hydraulic continuously variable transmission 64, the oil cooler 217, and the cooling cooler fan 218 are provided, and a driving unit (crawler belt 2) driving structure with high driving performance can be easily configured, but a small and lightweight combining is easy. Can be configured. The threshing portion 9 is mounted on the upper surface of the traveling machine body 1 in a horizontal orientation directed in the left-right direction, and the engine 7 and the heel receiving portion 6 can be arranged behind the threshing portion 9 and the heel receiving portion is located on the left and right rear portions on the rear side of the engine 7 6 and the steering column 41 can be juxtaposed.

  The cooling air intake duct body (suction duct) 452 includes a triangular box type duct body housing 453. That is, the duct main body housing 453 has a shape close to a triangular prism having a substantially triangular front and rear surface having an inclined left side surface (left inclined surface) 455. The duct body housing 453 is detachably fixed to the outer side surface (left side surface) of the cooler case body 412, and the dust removal wind on the right side surface of the duct body housing 453 is inserted into the cooling air intake opening 451 of the cooler case body 412. The outlet 454 is in communication.

  The duct main body housing 453 opens outside air intake ports 456 to 458 each provided with a dustproof net in three directions of the bottom surface and the front and rear surfaces. The duct main body housing 453 is installed between the rod receiving base 38 and the column frame body 39, and the outside air intake port 456 on the bottom surface is positioned above the front bent portion of the rod receiving base 38. Accordingly, it is possible to prevent soot or the like that has been spilled on the saddle receiving base 38 from being sucked into the duct body housing 453 through the outside air intake 456 on the bottom surface. Further, by providing the outside air intake ports 457 and 458 on the front and rear surfaces of the duct body housing 453, it becomes easier to take outside air into the duct body housing 453, so that the cooling effect in the oil cooler 217 can be improved.

  The left inclined surface 455 of the duct main body housing 453 is configured by an inclined surface inclined downward toward the outer side (left side) of the duct body housing 453, and a rod receiving arm body 39a having one end fixed to the support frame body 39 is provided. It is arranged above the left inclined surface 455. That is, a space is formed above the left inclined surface 455 of the duct body housing 453, and the eaves receiving arm body 39a is spaced from the left inclined surface 455 of the duct body housing 453.

  The bag receiving arm body 39a extends rearward from the column frame body 39, and has a bag bag fixing part 39b configured to have a convex shape with its rear end bent upward, and the bag bag fixing part 39b includes a concave bent portion 39c configured to be bent by bending the front side downward, and a spare bag disposition portion 39d provided in front of the concave bent portion 39c. The plurality of bag bags 37 including the spare bag bag 37 are suspended by passing the bag ports through the two bag receiving arm bodies 39a. Then, with the single bag 37 into which the grains are put, the bag mouth is mounted on the bag input 19a in a state where it is hung on the bag fixing portion 39b adjacent to the bag input 19a of the filling hopper 19. The

  Further, the empty empty bag 37 serving as a spare is hung on the concave bent portion 39c, the spare bag placing portion 39d, and the like, so that the space with the left inclined surface 455 of the duct main body housing 453 below the rod receiving arm body 39a. It hangs down. Therefore, the outside air intake ports 456 to 458 of the duct body housing 453 are not blocked by the empty bag 37, and outside air is taken into the duct body housing 453, and the cooling effect in the oil cooler 217 can be maintained. In addition, by disposing the front surface of the duct main body housing 453 behind the support frame body 39, the empty bag 37 does not hang down in front of the duct main body housing 453.

  Further, in the bag receiving arm body 39a, the concave bent portion 39c is provided between the bag bag fixing portion 39b and the spare bag bag arranging portion 39d, so that the operator can use the spare bag bag 39d for the spare bag bag arranging portion 39d. The bag 37 can be easily moved to the bag fixing part 39b, and the bag 37 can be easily attached to the bag loading port 19a of the filling hopper 19. Further, in the bag receiving arm body 39a, a concave bent portion 39c is provided in front of the bag bag fixing portion 39b, so that the bag bag 37 is attached to the bag loading port 19a of the filling hopper 19 in the bag bag fixing portion 39b. At this time, the spare bag bag 37 can be prevented from moving to the bag bag fixing portion 39b.

  An oil cooler 217 for cooling the hydraulic oil of the hydraulic continuously variable transmission 64 is installed on the outer side of the cooling cooler fan 218, and a cooling air intake duct body (suction duct) 452 is opposite to the cooling cooler fan 218 of the oil cooler 217. Covered by. The cooling air intake duct body 452 has a triangular shape with at least a lower surface opened and an inclined upper surface, and is disposed below the air path forming duct body 10 (selecting portion).

  The cooling air intake duct body 452 has the lower surface of the duct body housing 453 opened to form the outside air intake port 456, so that the suction of dust and dust falling from above is small, and the cooling effect in the oil cooler 217 is achieved. Can be maintained. Further, the cooling air intake duct body 452 has a left inclined surface 455 in which the upper surface of the duct main body housing 453 is inclined, so that a space can be provided above the cooling air intake duct body 452. 37 storage locations can be configured. Further, even if the space above the cooling air intake duct body 452 is used as a storage space, the outside air intake port 456 on the lower surface of the duct body housing 453 is not blocked, so that the oil cooler The cooling effect in 217 is not reduced.

  The traveling direction of the traveling machine body 1 is the front-rear direction, and the cooling air intake duct body 452 is projected leftward (toward the outside of the machine) with respect to the oil cooler 217, and the front and rear surfaces of the cooling air intake duct body 452 are open. Has been. Since the cooling air intake duct body 452 has the front and rear surfaces of the duct body housing 453 opened to form the outside air intake ports 457 and 458, it is possible to prevent the cooling air from being insufficient with respect to the capacity of the oil cooler 217.

  A support frame body (support receiving column) 39 that supports the air path forming duct body 10 is erected from the traveling machine body 1, and the support arm body 39 a on which the support bag 37 is suspended is cantilevered behind the support frame body 39. Has been. The cooling air intake duct body 452 is installed behind the support frame body 39 so that the inclined upper surface is positioned below the saddle receiving arm body 39a.

  With the above-described configuration, the hook receiving arm body 39a can be spaced upward from the left inclined surface 455 with the upper surface of the duct main body housing 453 inclined, so that the spare bag bag 37 that is hung and stored on the hook receiving arm body 39a. However, it does not hang down from the opening portion of the cooling air intake duct body 452. That is, the outside air intake ports 456 to 458 provided in the duct main body housing 453 are not blocked by the spare bag bag 37 or the like, and a decrease in the amount of outside air taken into the cooling air intake duct body 452 can be prevented.

  As shown in FIGS. 22 to 27, the air passage forming duct body 10 includes a wind-selective meandering passage 231 that communicates with the outlet 8 c of the grain discharge conveyor 8, and a filling hopper 19 that puts the grain into the bag 37. Is connected to the wind selecting meandering passage 231 behind the air passage forming duct body 10, while the suction fan device 34 is connected to the wind selecting meandering passage 231 in front of the air path forming duct body 10. A support frame body 39 and a cooling air intake duct body 452 are disposed between the dust exhaust port 222 a of the suction fan device 34 and the soot inlet 19 a of the filling hopper 19.

  Since the support frame body 39 is disposed between the dust exhaust port 222a of the suction fan device 34 and the cooling air intake duct body 452, the support frame body 39 in front of the cooling air intake duct body 452 becomes an obstacle, and the suction fan apparatus It is possible to take outside air with less soot and dust discharged from the cooling air intake duct body 452. Further, since the cooling air intake duct body 452 is installed in front of the soot inlet 19a of the filling hopper 19, the soot bag 37 attached to the soot inlet 19a becomes an obstacle and is taken into the cooling air intake duct body 452. The amount of soot contained in the outside air can be suppressed. Accordingly, it is possible to reduce the amount of dust and soot adhering to the dust nets of the outside air intake ports 456 to 458 provided in the cooling air intake duct body 452, and to suppress the decrease in the cooling effect of the oil cooler 217.

  Further, the cooling air intake duct body 452 has the bottom side machine inner side end portion (right side end portion) of the cooling air intake duct body 452 positioned on the machine inner side (right side) of the dust exhaust port 222a of the suction fan device 34. Accordingly, since dust and the like are discharged from the dust outlet 222a of the suction fan device 34 to the outside of the machine, the cooling air intake duct body 452 is disposed in a space where there is less dust and dust, and the cooling air intake duct It is possible to reduce the amount of dust and soot adhering to the dust nets of the outside air intake ports 456 to 458 provided in the body 452.

  As shown in FIGS. 19 to 21, the cooling air intake duct body 452 is configured to be detachable from the cooler case body 412. The cooling air intake duct body 452 has an insertion hole 460 into which a screw portion 459 projecting from the upper surface of the cooler case body 412 is inserted, on the right edge side of the upper surface of the duct body housing 453, and the bottom surface of the cooler case body 412. A locking hole 462 into which a locking protrusion 461 projecting further upward is inserted is formed on the right edge side of the bottom surface of the duct main body housing 453. On the other hand, the cooling air intake duct body 452 has an insertion hole 460 and a locking hole 462 into which the threaded portion 459 and the locking projection 461 are inserted at the upper and lower positions of the dust removing air outlet 454 in the duct body housing 453.

  The cooling air intake duct body 452 has a female part 459 protruding from the upper surface of the duct body housing 453 with the screw part 459 and the locking projection 461 of the cooler case body 412 inserted into the insertion hole 460 and the locking hole 462. By fastening the screw (wing screw) 463, the cooler case body 412 is detachably fixed to the left side surface. Since the duct body housing 453 has a structure having a left inclined surface 455 that is inclined downward toward the left side, a sufficient space is formed above the cooling air intake duct body 452. It becomes easy to attach and detach. Therefore, the cooling air intake duct body 452 can be easily attached to and detached from the cooler case body 412 and the maintainability around the oil cooler 217 is improved.

  Further, as shown in FIG. 4 to FIG. 6 and the like, a hook receiving base 38 is disposed at the rear portion of the left crawler belt 2, and the paddle inlet 19 a of the filling hopper 19 is disposed above the paddle receiving base 38. A bag 37 is attached and the bag 37 is filled with bag. The straw bag 37 filled with straw is dropped onto the field, and empty straw bags 37 are sequentially attached to the straw input port 19a, and are continuously carried out from the grain discharge conveyor 8 through the air duct forming duct body 10. A plurality of koji bags 37 can be filled with koji (grain).

  Next, as shown in FIG. 4 to FIG. 7 and FIG. 13 to FIG. 15, the handling cylinder 21 has four round pipe cylinder frames 21 a arranged on the same circumference, and the cylinder frame 21 a is arranged at equal intervals. It has a large number of V-shaped teeth 21b that are erected in an orientation, and a dust exhaust blade plate 21c that is erected on the outer peripheral surface of the right end of the trunk frame 21a that faces the dust outlet 23. Both end portions of each barrel frame 21a are fixed to the outer periphery of the disc-shaped left and right side plate bodies 21d of the handle barrel 21, and both V-shaped end portions of the handle teeth 21b are fixed to the barrel frame 21a by welding.

  In addition, a cross-section end face installed in parallel on the front upper surface side of the traveling machine body 1 in the left-right direction is provided with a front frame body 121 having an inverted V shape (saddle shape) and a cross-section end face having an L-shaped rear frame body 122. A support frame in which a front frame body 121 having an inverted V-shaped cross section (weld shape) is welded and fixed to the front end portion of the lower body frame 1a (running body 1) and the front end portion of the upper body frame 1b is integrally connected. A rear frame 122 having an L-shaped cross-section is welded and fixed to the upper end of the frame 1c (the traveling machine body 1). The prop frame 1c at the front part of the traveling machine body 1 extends upward from the upper machine body frame 1b, and the rear frame body 122 is arranged above the upper machine body frame 1b.

  The lower end of the left and right threshing mounts 128 are welded and fixed to the front end portion of the lower body frame 1a, and the lower surface of the front frame body 121 is welded and fixed to the upper ends of the left and right threshing mounts 128. A lifting hydraulic cylinder 4 is attached. The threshing mount 128 is formed shorter than the support frame 1c, and the support height of the rear frame body 122 is higher than the support height of the front frame body 121.

  A front frame 121 having an inverted V-shaped (∧-shaped) front frame 121 and a front horizontal frame 123 having an inverted V-shaped (∧-shaped) sectional end surface is detachably combined from above. The front horizontal frame 123 is detachably fastened to the body 121 with a detachable bolt 125, and the rear cross frame end 124 is attached to the rear frame 122 and the rear horizontal frame 124 is attached to and detached from the upper side. The rear lateral frame body 124 is fastened to the rear frame body 122 with bolts 126.

  The reverse V-shaped bottom surface portion (front horizontal cross frame 123) of the threshing portion 9 is fixed to the front frame body 121 whose cross-section end surface is reverse V-shaped, and the rear frame body 122 whose cross-section end surface is L-shaped. The L-shaped rear part (rear horizontal frame body 124) at the rear part of the threshing part 9 is fixed to the front frame body 121 and the rear frame body 122 so that the bottom side of the threshing part 9 is detachable from above. The grain extraction conveyor 36 is disposed on the grain extraction basket 25 at the bottom of the threshing section 9, and the front frame body 121 is joined to the outer surface of the grain extraction basket 25 via the front horizontal frame 123. I support it.

  Next, with reference to FIGS. 21 to 27 and the like, the structure of the air passage forming duct body 10 (grain selecting unit) and the suction fan device 34 for selecting the grain will be described. As shown in FIGS. 21 to 27 and the like, the fan case 29 is detachably fixed to the front side of the support frame body 39 via a pair of left and right suction fan support brackets 221, and the suction fan device is attached to the front side of the support frame body 39. 34 is supported. The air passage forming duct body 10 is detachably fixed to the rear upper end portion of the support frame body 39 via the duct body mounting base 223, and the grain discharge conveyor 8 feed end point is fed to the sorting inlet 10a of the air passage forming duct body 10. The discharge port 8c is bonded and fixed. A wind selection meandering passage 231 is formed inside the air passage forming duct body 10, and a filling hopper 19 is provided on the outlet side of the wind selection meandering passage 231 to feed grains into the straw bag 37 of the straw receiving portion 6. The filling hopper 19 is configured to communicate with the dispensing port 8 c of the grain discharge conveyor 8 through the selection meandering passage 231.

  That is, the filling hopper 19 is joined and fixed to the sorting outlet 10b of the air passage forming duct body 10, and the air passage forming duct body 10 and the filling hopper 19 are connected in an inverted V shape to the feed terminal of the grain discharge conveyor 8. A suction fan device 34 is provided below the inverted V-shaped connecting portion of the grain discharge conveyor 8 and the air passage forming duct body 10. A suction fan device 34 is provided in the vicinity of the feed end portion of the grain discharge conveyor 8 and the connection portion of the air passage forming duct body 10, and the grains taken out via the grain discharge conveyor 8 are sucked by the suction fan device 34. It is configured to wind-select.

  A dust collection duct 222 is provided on the exhaust side of the fan case 29, the dust collection duct 222 is extended downward from the fan case 29, and the sorting dust outlet 222 a on the lower end side of the classification dust discharge duct 222 is connected to the traveling machine body 1. Open toward the left side. In addition, left and right suction ducts 224 are disposed on the left and right sides of the fan case 29 in the suction fan device 34, and the dust collection duct 225 is joined and fixed to the dust suction side of the left and right suction ducts 224.

  That is, the engine 7 is mounted on the rear side of the threshing portion 9 in the horizontal position where the handling cylinder 21 is supported sideways, and the suction fan device 34 is juxtaposed on the left side of the engine 7, and the front, rear, and rear height grains. The dust collection duct 225 is arranged along the lower surface side of the grain discharge conveyor 8 feed terminal, and the dust collection duct 225 is extended from the left and right suction ducts 224 along the lower surface side of the grain discharge conveyor 8 to collect the dust. The left and right suction ducts 224 are communicated with the dust suction port 10c of the air path forming duct body 10 through the duct 225, and the left and right width dimensions of the air path forming duct body 10 are formed larger than the left and right width dimensions of the grain discharge conveyor 8. The suction fan device 34 for sucking and discharging dust is disposed at the connecting portion between the grain discharge conveyor 8 and the air passage forming duct body 10, and the dust of the suction fan device 34 is placed in the dust suction port 10 c of the meandering passage 231 for wind selection. Suction side (collection It is configured so as to communicate the suction side) of the duct 225.

  A wind selection outside air intake port 10d is formed above the selection outlet 10b of the wind selection meander passage 231, and a suction control valve 232 is attached to the suction side (dust suction port 10c) of the dust collection duct 225. A suction amount adjusting port 233 is opened on the suction side upper surface of the dust collection duct 225. The suction amount adjustment port 233 of the dust collection duct 225 is opened and closed by a suction adjustment valve 232, and the outside air intake amount for wind selection (the dust suction force of the dust suction port 10c) taken in from the outside air intake port 10d for wind selection is adjusted. is doing.

  With the above configuration, when the suction amount adjustment port 233 is opened by the suction adjustment valve 232, the amount of wind selection outside air taken in from the wind selection outside air intake port 10d is reduced, and the dust suction force of the dust suction port 10c is weak. On the other hand, when the suction amount adjustment port 233 is closed by the suction adjustment valve 232, the amount of wind selection outside air taken in from the wind selection outside air intake port 10d increases, and the dust suction force of the dust suction port 10c increases.

  A valve opening setting portion 239 of the suction adjustment valve 232 is installed on the inner side surface (right side surface) of the dust collection duct 225. By rotating the valve opening setting portion 239, the suction adjustment valve 232 is rotated. The suction amount adjusting port 233 is opened and closed. By providing the valve opening setting portion 239 on the side surface of the dust collection duct 225 on the side of the control column 41, an operator who operates the control column 41 or a work assistant who fills the straw bag 37 with a grain easily opens the valve. The degree setting unit 239 can be operated, and the adjustment of the dust suction force in the dust collection duct 225 (the wind selection outside air intake amount taken in from the wind selection outside air intake port 10d) is facilitated.

  A suction fan device 34 is provided in the vicinity of the connecting portion between the feed terminal portion of the grain discharge conveyor 8 and the air passage forming duct body 10 for forming the sorting air passage. The left and right suction ducts 224 are arranged on both sides of the fan case 29 in the suction fan device 34, and the left and right suction ducts 224 are communicated with the dust suction port 10 c of the air passage forming duct body 10. Therefore, the suction fan device 34 can be utilized as a support member for the connecting portion between the grain discharge conveyor 8 and the air passage forming duct body 10, while ensuring the connection strength between the grain discharge conveyor 8 and the air passage forming duct body 10, The connection structure of the grain discharge conveyor 8 and the air passage forming duct body 10 or the attachment structure of the suction fan device 34 can be simplified. Further, the suction width of the left and right suction ducts 224 can be easily increased according to the left and right widths of the air passage forming duct body 10, and the sorting loss can be reduced by preventing erroneous suction of grains and the like. The sorting width of the body 10 can be easily secured and the sorting function can be improved.

  The air passage forming duct body 10 is connected in an inverted V shape to the feed end portion of the grain discharge conveyor 8, and the suction fan device 34 is disposed below the reverse V shape connecting portion of the grain discharge conveyor 8 and the air path forming duct body 10. Is provided. Therefore, the front-rear and rear-height grain discharge conveyor 8 is connected to the air channel forming duct body 10 in an inverted V shape so that the front and rear width dimensions of the grain discharge conveyor 8 and the air path forming duct body 10 can be made compact. However, the sorting air passage can be formed long to improve the sorting accuracy, and the suction fan device 34 can be compactly installed below the connecting portion between the grain discharge conveyor 8 and the air passage forming duct body 10. The connection structure of the grain discharge conveyor 8 and the air path forming duct body 10 can be simplified while securing the connection strength of the grain discharge conveyor 8 and the air path forming duct body 10.

  Left and right suction ducts 224 (dust collection ducts 225) are extended along the lower surface side of the front and lower grain discharge conveyor 8 feed terminal. Therefore, the shape of the left and right suction ducts 224 can be easily adapted to the mounting position of the suction part (fan case 29) of the suction fan device 34 or the suction part (dust suction port 10c) of the air passage forming duct body 10.

  The engine 7 is mounted on the rear side of the threshing portion 9 in a horizontal posture in which the handling cylinder 21 is supported in the left-right direction, and a suction fan device 34 is provided in parallel on the left side of the engine 7. Therefore, the suction fan device 34 can be installed compactly in the vicinity of the engine 7, and the suction fan device 34 can be easily driven via the high rotation output portion of the engine 7. The number of components such as the drive structure of the suction fan device 34 can be easily reduced, and can be configured at low cost.

  Furthermore, the comb-shaped sieving line 234 that opposes the outlet 8c (selection inlet 10a) of the grain discharge conveyor 8 and the flow direction of the grain falling from the sieving line 234 are changed inside the air duct forming duct body 10. A flow guide short plate (first flow guide plate) 235, a flow guide long plate (second flow guide plate) 236, and a grain sorting flow plate 237 formed on the bottom plate of the air passage forming duct body 10. . Further, the air passage forming duct body 10 has an inlet-side flow-down plate 238 that connects the lower end of the sorting inlet 10a and the upper end of the dust suction port 10c, and a flow-down guide short plate 235 extends from the lower end of the inlet-side flow-down plate 238. ing. The sieve line 234 is configured in a comb shape in which one end of a plurality of rods is fixed to the rotation shaft 234a in the left-right direction at equal intervals, and is configured to be swingable in the front-rear (vertical) direction about the rotation shaft 234a. The inclination angle with respect to the sorting inlet 10a is set.

  The sloping lower end side of the flow guide short plate 235 is directed to the upper surface side of the flow guide long plate 236, the slant lower end side of the flow guide long plate 236 is directed to the upper surface side of the grain sorting flow plate 237, and the grain sorting flow A dust suction port 10c is formed on the inclined upper end side of the plate 237, and the filling hopper 19 is connected to the inclined lower end side of the grain sorting flow-down plate 237 via the sorting outlet 10b. A wind-meandering meandering passage 231 is formed by the plates 235 to 238 and the sieve wire 234.

  A sieving line 234 is provided so as to face the discharge port 8 c of the grain discharge conveyor 8, and a dust suction port 10 c is formed facing the wind selection outlet side of the sieving line 234, and the discharge port 8 c of the grain discharge conveyor 8 is formed. Then, the meandering passage 231 for wind selection is communicated through the sieving line 234, and the lump of grain and swarf sent from the dispensing port 8c of the grain discharge conveyor 8 is decomposed. In addition, the sorting wind is taken in from the outside air intake 10d for wind selection to the lower inclined side of the grain sorting flow plate 237, and the selected wind is sucked into the suction fan device 34 from the dust suction port 10c on the upper tilt side of the grain sorting flow plate 237. It is. Thereby, the sawdust or dust falling on the grain sorting flow-down plate 237 is discharged to the suction fan device 34 side, and the grain falling on the grain sorting flow-down plate 237 flows down to the filling hopper 19 side.

  The sieving line 234 is configured so that an inclination angle can be set around the rotation shaft 234a located at the upper end, and is substantially parallel to the opening surface of the discharge port 8c from an inclination angle substantially parallel to the flow guide long plate 236. It is possible to incline in the range of inclination angles. That is, when the lower end of the sieving line 234 is moved to the outlet 8c side, the lower end of the sieving line 234 moves away from the upper surface of the flow guide long plate 236 and approaches the flow guide short plate 235, and the inclination angle of the screen line 234 Transitions to an angle parallel to the long guide plate 236. Further, when the lower end of the sieving wire 234 is moved toward the flow guide long plate 236, the lower end of the sieving wire 234 moves away from the lower end of the flow guide short plate 235 and approaches the upper surface of the flow guide long plate 236, and the sieving wire 234. The angle of inclination changes to an angle that is perpendicular to the traveling machine body 2.

  The closer the inclination angle of the sieving line 234 is to an angle that is parallel to the flow guide long plate 236, the sieving line 234 with respect to the dropping direction of the grains and swarf dropped from the outlet 8c of the grain discharge conveyor 8 The resistance due to increases. That is, when the grain dropped from the outlet 8c and the swarf are dry, the grain is likely to collide with the sieving line 234 by inclining the sieving line 234, compared with the swarf or dust. Heavy kernels are repelled by sieving lines 234 to separate the kernels from dust or dust.

  On the other hand, the closer the inclination angle of the sieving line 234 is to an angle parallel to the opening surface of the outlet 8c, the sieving line with respect to the dropping direction of the grains and swarf dropped from the outlet 8c of the grain discharge conveyor 8 The resistance due to 234 is reduced. When the grains and swarf dropped from the outlet 8c contain a lot of moisture or the amount of dust is large, the collision rate of the swarf and dust to the sieving line 234 is set up vertically. Not only becomes low, but also falls easily from the sieve wire 234. For this reason, it is possible to prevent the swarf and dust from staying by being caught on the sieve line 234, and to efficiently separate the swarf or dust and the grain.

  An angle setting unit 240 that sets an inclination angle of the sieving line 234 is installed on the inner surface (right side) of the air passage forming duct body 10, and the sieving line 234 is rotated by rotating the angle setting unit 240. The tilt angle of the sieving line 234 is changed. By providing the angle setting unit 240 on the side surface of the airflow forming duct body 10 on the side of the control column 41, an operator who operates the control column 41 or a work assistant who fills the straw bag 37 with grains can easily set the angle. The part 240 can be operated, and the adjustment of the sorting force (resistance by the sieving wire 234 against the input material) in the air passage forming duct body 10 is facilitated.

  The air duct forming duct body 10 has an upper viewing window 241 and a lower viewing window 242 that allow the inside of the wind-selective meandering path 231 to be visually recognized from the outside, and the upper viewing window 241 and the lower viewing window 242 An in-machine side surface (right side surface) of the path forming duct body 10 is provided. By providing the upper sight window 241 and the upper sight window 241 on the side surface of the air duct forming duct body 10 on the side of the control column 41, an operator who operates the control column 41 or a work assistant who fills the grains in the bag 37 However, the inside of the meandering passage 231 for wind selection can be visually recognized. Therefore, the operator or a work assistant can adjust the valve opening degree of the suction adjustment valve 232 and the inclination angle of the sieving line 234 to the optimum state in accordance with the state in the wind-selective meandering passage 231.

  The upper viewing window 241 is configured to be along the flow guide long plate 236 above the flow guide long plate 236. That is, the upper viewing window 241 is configured to be parallel to the upper surface of the flow guide long plate 236 from the position between the lower end of the flow guide short plate 235 and the flow guide long plate 236 obliquely upward. Yes. Thereby, the operator or the work assistant can confirm the separated state of the grains and the sawdust dropped from the dispensing port 8c while confirming the lower end position of the sieve line 234 through the upper viewing window 241. That is, the operator or the work assistant operates the angle setting unit 240 while checking the presence or absence of scum or the like in the sieve line 234 through the upper viewing window 241, thereby setting the sieve line 234 to the optimum inclination angle. Can be adjusted.

  The lower viewing window 242 is configured to be along the grain sorting flow plate 237 below the flow guide long plate 236. That is, the lower viewing window 242 is a grain sorting flow plate 237 from the position near the dust suction port 10c of the air passage forming duct body 10 below the lower end of the flow guide short plate 235 toward the sorting outlet 10b obliquely below. It is configured to be parallel to the upper surface. Thereby, the operator or the operation assistant can confirm the separated state of the grain and the sawdust on the upper surface of the grain sorting flow-down plate 237 through the lower viewing window 242. That is, the operator or the operation assistant operates the valve opening setting unit 239 through the lower viewing window 242 while confirming the selection state of the grains and swarf by the selection air from the outside air intake for wind selection 10d. Thus, the suction control valve 232 can be adjusted to an optimal valve opening.

  The filling hopper 19 is provided with a shutter 243 that opens and closes the basket inlet 19a. The shutter 243 is connected to a shutter lever 244 provided on the inner side surface (right side surface) of the filling hopper 19, and is configured to be rotatable by operating the shutter lever 244. Therefore, the auxiliary worker prohibits the discharge of the soot from the soot insertion port 19a with the shutter 243 closed by the shutter lever 244 until the soot bag 37 is attached to the soot insertion port 19a. When the bag 37 is attached to the bag loading port 19a, the shutter 243 is opened by the shutter lever 244, and the bag from the bag loading port 19a is filled into the bag bag 37. After that, when the bag 37 is filled up, the shutter 243 is closed by the shutter lever 244 to prohibit the discharge of the bag from the bag loading port 19a and to replace the bag 37 attached to the bag loading port 19a. Do work. Therefore, the straw bag 37 can be easily replaced by the temporary storage function of the filling hopper 19, and the grain filling workability into the straw bag 37 can be improved.

  A flow-down guide long plate (second flow-down guide plate) 236 that receives and flows down the grain input from the outlet 8c (selection inlet 10a) of the grain discharge conveyor 8 is part of the wind-selective meandering passage 231. A sieve line 234 is installed between the outlet 8c of the grain discharge conveyor 8 and the flow guide long plate 236. The sieve line 234 is installed behind the outlet 8c. Therefore, the number of components can be reduced as compared with a structure in which a swing sorter or the like is installed, and weight reduction or cost reduction can be easily achieved, and the combine machine structure can be configured compactly. Further, by providing the sieving line 234, it is possible to move while solving the lump of grains and dust falling into the wind-selection meandering passage 231 from the outlet 8c. By dropping the grain from the grain discharge conveyor 8 toward the sieving line 234, it is possible to efficiently separate the swarf or dust and the grain, and to easily improve the sorting performance of the grain taken out to the straw receiving part 6.

  The sieving line 234 is configured in a comb shape and is rotatable around a rotation shaft 234a that is parallel to the opening surface of the outlet 8c of the grain discharge conveyor 8, and from the grain discharge conveyor 8 The resistance to the grain put into the flow guide long plate 236 can be changed. By making it possible to change the inclination angle of the sieving line 234 with respect to the opening surface of the outlet 8c, the inclination angle of the sieving line 234 is optimal for the state in which the swarf or dust and the grains are easily separated depending on the state of the conveyed product. Can be set. Accordingly, stable grain sorting performance can be maintained regardless of the state of the conveyed product. That is, when the transported material is a wet material, the sieving line 234 is set up vertically so as to guide the downside of the downflow guide long plate 236 to prevent stagnation in the downflow guide long plate 236 or the sieving line 234. it can. On the other hand, when the conveyed product is a dry material, the sieve line 234 is laid so that the grain is repelled by the sieve line 234, and the grain conveyed along the flow guide long plate 236 is separated from the sawdust and the like. Easy to do.

  An angle setting unit 240 for setting the inclination angle of the sieving line 234 is installed on the in-machine side surface of the air passage forming duct body 10 constituting the wind selection meandering passage 231. Therefore, an operator or a work assistant can easily operate the angle setting unit 240, and it becomes easy to adjust the sorting force (resistance by the sieve line 234 against the input material) in the air passage forming duct body 10, and the grains to the straw bag 37 Filling workability can be improved.

  The wind-selective meandering passage 231 is in front of the downflow guide long plate 236 and below the throwing-out port 8c of the grain discharge conveyor 8 and is a dust suction port (dust outlet) 10c communicating with the dust collection duct 225. On the other hand, an air intake port 10d for wind selection is provided at a position behind the long flow guide long plate 236 and above the selection outlet 10b of the wind selection meander passage 231, and is sucked into the dust suction port 10c. A suction control valve 232 that adjusts the amount is rotatably provided in the dust collection duct 225, and a valve opening setting unit 239 that controls opening and closing of the suction control valve 232 is a steering column (control unit) in the dust collection duct 225. It is installed on the side which becomes 41 side. Therefore, an operator or a work assistant can easily operate the valve opening setting unit 239, and it is easy to adjust the dust suction force in the dust collection duct 225 (the wind-selecting outside air intake amount taken in from the wind-selecting outside air intake port 10d). The grain filling workability to the bag 37 can be improved.

  Viewing windows 241 and 242 that allow the inside of the wind selection meander passage 231 to be visually recognized are disposed between the outlet 8c of the grain discharge conveyor 8 and the flow guide long plate 236, and the flow guide long plate 236 and the wind selection. It is installed between the meandering passage 231 and the sorting outlet 10b. Since the operator or the operation assistant can easily visually recognize the inside of the wind selection meandering passage 231, the valve opening degree of the suction control valve 232 and the inclination angle of the sieve line 234 are optimized according to the state in the wind selection meandering passage 231. It can adjust to a state and can improve the grain filling workability | operativity to the bag 37.

  An air passage forming duct body 10 is provided in which a wind selection meandering passage 231 is formed, and the left and right width dimensions of the air passage forming duct body 10 are made larger than the left and right width dimensions of the grain discharge conveyor 8, and the wind of the sieving line 234 A dust suction port 10c is formed so as to face the selection outlet side. Therefore, the dust suction port 10c is made to face the upper flow side of the grain flowing down the wind selection meander passage 231 to efficiently remove the dust or dust from the upper flow side of the grain, and the downstream side of the wind selection meander passage 231 It is possible to reduce the amount of dust or dust scattered at the grain filling place (the place where the bag is placed).

  A filling hopper 19 for charging the grain into the straw bag 37 of the basket receiving portion 6 is provided on the outlet side of the wind-selective meandering passage 231, and is provided to the outlet 8 c of the grain discharge conveyor 8 via the wind-selective meandering passage 231. The filling hopper 19 is configured to communicate with each other. Therefore, the bag 37 can be easily replaced by the temporary storage function of the filling hopper 19. An air intake port 10d for wind selection can be easily formed on the outlet side of the meandering passage 231 for wind selection, the amount of air intake for wind selection sucked from the bag mounting portion of the filling hopper 19 can be reduced, and the grains to the bag 37 Filling workability can be improved.

  An air passage forming duct body 10 in which a wind selection meandering passage 231 is formed is provided, and a suction fan device 34 for sucking and discharging dust is arranged at a connecting portion between the grain discharge conveyor 8 and the air passage forming duct body 10, and the wind selection meandering passage The dust suction port 10c of 231 is configured to communicate with the dust suction side of the suction fan device 34. Therefore, the front-rear and rear-high grain discharge conveyor 8 can be connected to the air channel forming duct body 10 in an inverted V shape so that the front and rear width dimensions of the grain discharge conveyor 8 and the air path forming duct body 10 can be made compact. However, the suction fan device 34 can be compactly installed below the inverted V-shaped connecting portion of the grain discharge conveyor 8 and the air passage forming duct body 10.

  Next, the engine 7 and the cooling structure of the engine 7 will be described with reference to FIG. 5, FIG. 6, FIG. 17, FIG. The type of the engine 7 is a horizontal water-cooled four-cycle diesel engine, a fuel tank 312 having a fuel tank lid 311 is mounted on the front upper surface side of the engine 7, and a water-cooling radiator 314 having a radiator cap 313 is mounted on the rear upper surface of the engine 7. The air cleaner 315 and the exhaust silencer 316 are disposed on the rear side of the engine 7. A steering column 41 is disposed on the right rear side of the engine 7, an air cleaner 315 is located on the right side of the exhaust silencer 316, and a steering column 41 is located on the right side of the air cleaner 315. An engine starting battery 56 is placed on the upper surface of the traveling machine body 1 in front of the steering column 41 (to the right side of the engine 7).

  In addition, a cooling air intake opening 318 is formed in the upper right portion on the rear side of the engine 7, a cooling air discharge opening 319 is formed in the upper left portion on the rear side of the engine 7, and the engine cooling fan 317 is provided in the cooling air discharge opening 319. Arrange. The engine cooling fan 317 is driven via the engine output shaft 65, the cooling air is taken into the water cooling radiator 314 from the cooling air intake opening 318, the warm air of the water cooling radiator 314 is discharged from the cooling air discharge opening 319, The water cooling radiator 314 is configured to be cooled.

  Furthermore, a polygonal box type (triangular box type) cooling air intake duct body 321 connected to the cooling air intake opening 318 of the engine 7 is provided, and the cooling air intake duct body 321 has a triangular box type duct body housing 322. That is, the duct main body housing 322 has a shape close to a triangular prism having a substantially triangular lid surface and a bottom surface with the front right side cut out.

  The duct body housing 322 is fixed to the right side surface of the engine 7 at a position above the battery 56, and the battery 56 is disposed in front of the right front inclined surface of the duct body housing 322 in plan view. Therefore, not only can the battery 56 be replaced and charged without removing the cooling air intake duct body 321, but also the space on the right side of the engine 7 can be widened, so that access to the engine 7, hydraulic oil piping, etc. is easy. Therefore, maintainability can be improved.

  The left side surface of the duct body housing 322 is joined to the outside of the cooling air intake opening 318 of the engine 7, and the dust removal air outlet 324 of the duct body housing 322 is connected to the cooling air intake opening 318 on the upper right side of the engine 7. At this time, the size of the cooling air intake opening 318 of the engine 7 and the size of the dust removing air outlet 324 of the duct body housing 322 are formed to be substantially equal, and the cooling air intake opening 318 and the dust removing air outlet 324 are connected.

  On the other hand, outside air intakes 326 and 327 are opened in two directions of the right front inclined surface and the back surface of the duct body housing 322, respectively. The upper side of the control column 41 (operating lever 43, 44, 45, 47 mounting portion) provided behind the cooling air intake duct body 321 is opposed to the outside air intake port 327 on the rear surface of the duct body housing 322. While the outside air on the right side of the airframe is taken into the duct body housing 322 from the outside air inlet 326 on the right side surface of the duct body housing 322, the outside air on the upper surface side of the steering column 41 is drawn from the outside air inlet 327 on the back surface of the duct body housing 322. It is configured to be taken into the housing 322.

  In addition, a dust-proof net is stretched at the outside air inlets 326 and 327, and outside air after dust removal is taken into the duct body housing 322. During the harvesting operation, if dust or the like adheres to the dust nets of the outside air intakes 326 and 327, the operator behind the control column 41 can easily visually check the outside air intakes 326 and 327, and the state of attachment of the dust etc. can be easily achieved. It is configured so that it can be confirmed. Furthermore, by forming the outside air intake port 326 on the right front inclined surface of the duct body housing 322, the opening surface of the outside air intake port 326 can be configured widely.

  A cooling air intake duct body 321 having a polygonal box shape connected to the cooling air intake opening 318 of the engine 7 is provided. The cooling air intake duct body 321 has a duct body housing 322, and the cooling air intake opening 318 of the engine 7 is provided in the cooling air intake opening 318. A dust removal outlet 324 of the duct body housing 322 is connected. Therefore, the polygonal box-shaped side surface of the cooling air intake duct body 321 can be disposed opposite to the engine 7 or the steering column 41, and the engine 7 and the steering column 41 are surrounded by the engine 7 and the steering column 41 on the trimmed upper surface of the traveling machine body 1. The cooling-air intake duct body 321 can be compactly supported in a place where there is little dust, such as the upper surface.

  The steering column 41 is erected on the traveling body 1 on the right rear side of the engine 7, and a triangular box type cooling air intake duct body 321 is attached to the front side of the steering column 41 via a support frame body 325. A dust removal outlet 324 on the left side of the duct body housing 322 is connected to the cooling air intake opening 318 on the upper right side. Therefore, the size of the cooling air intake opening 318 of the engine 7 and the size of the dust removal air outlet 324 of the duct body housing 322 are formed to be substantially equal, and the connection structure between the cooling air intake opening 318 and the dust removal air outlet 324 is simplified. Can be configured. By utilizing the space in front of the steering column 41, the cooling air intake duct body 321 can be closely supported by the cooling air intake opening 318 of the engine 7.

  Open air intakes 326 and 327 are formed in two directions on the right side and the back side of the triangular box-shaped duct body housing 322, respectively, and a steering column 41 is provided behind the cooling air intake duct body 321. An operation lever (side clutch levers 43, 44 or traveling speed change lever 45 or cutting lift lever 47) mounting portion on the upper surface side of the control column 41 is opposed to the outside air inlet 327. Therefore, the opening area of the outside air intake ports 326 and 327 can be formed larger than the dust removing air outlet 324 of the duct body housing 322, the outside air intake pressure of the outside air intake ports 326 and 327 can be reduced, and the outside air intake ports 326 and 327 are attached. Can reduce the amount of dust.

  The steering column 41 is erected on the traveling body 1 on the right rear side of the engine 7, and a triangular box type cooling air intake duct body 321 is attached to the front side of the steering column 41 via a support frame body 325, and the steering column 41 is operated. The left and right side clutch levers 43, 44, the cutting lift lever 47, and the travel speed change lever 45 are arranged in parallel in the left and right directions in order from the right side on the upper surface of the column 41, and the operation position of the travel speed change lever 45 on the inner side of the machine body The lever (the side clutch levers 43 and 44 or the cutting lift lever 47) is formed higher. Therefore, it is possible to support the traveling speed change lever 45, which is operated less frequently during the harvesting operation that moves through the field at a substantially constant speed, on the inner side of the machine body, and the side clutch levers 43, 44 and the cutting lift lever that are also operated frequently during the harvesting operation. 47 can be supported on the outer side of the fuselage, so that an operator who sits on the driver seat 42 behind the control column 41 visually recognizes the position of the front cutting portion 3 near the outer side of the traveling aircraft 2 and the side clutch levers 43 and 44 and the cutting. The elevating lever 47 can be operated smoothly, and driving operability can be improved. In a walking harvesting operation in which an operator walks following the traveling machine body 1, the side clutch levers 43 and 44 and the cutting lift lever 47 can be easily operated from the outside of the traveling machine body 1, thereby improving the walking harvesting workability.

DESCRIPTION OF SYMBOLS 1 Traveling machine body 3 Cutting part 6 Grain receiving part 7 Engine 8 Grain discharge conveyor 9 Threshing part 10 Air channel formation duct body 15 Cutting blade 19 Filling hopper 21 Handling cylinder 34 Suction fan apparatus 36 Grain extraction conveyor 37 Grain bag 38 Grain receiving Base 38a Base support frame 39 Support frame body 39a Fence receiving arm body 39b Bending portion 39c Spare bag arrangement portion 217 Oil cooler 218 Cooler fan 451 Cooling air intake opening 452 Cooling air intake duct body 453 Duct body housing 454 Dust removal air outlet 455 Left inclined surface 456 Outside air intake (bottom)
457 Outside air intake (front)
458 Outside air intake (rear)
459 Screw part 460 Insertion hole 461 Locking protrusion 462 Locking hole 463 Female screw (wing screw)

Claims (4)

A cutting part having a cutting blade; a threshing part having a handling cylinder; a traveling machine body provided with a traveling part and an engine; and a sorting part for selecting a grain from the threshing part via a grain discharge conveyor, the traveling part. In a combine that provides a hydraulic continuously variable transmission in a transmission case for driving
An oil cooler that cools the hydraulic oil of the hydraulic continuously variable transmission is installed on the outer side of the cooling cooler fan, and a side opposite to the cooling cooler fan of the oil cooler is covered with a suction duct,
The suction duct has a triangular shape in which at least a lower surface is opened and an upper surface is inclined, and the combiner is disposed below the selection unit.   2. The traveling direction of the traveling machine body is a front-rear direction, the suction duct projects in the left-right direction with respect to the oil cooler, and front and rear surfaces of the suction duct are opened. Combine as described in. A basket receiving column supporting the sorting unit is erected from the traveling machine body, and a basket receiving arm on which the bag is suspended is cantilevered behind the basket receiving column,
3. The combine according to claim 1, wherein the suction duct is installed behind the rod receiving column such that the inclined upper surface of the suction duct is positioned below the rod receiving arm. . The sorting unit includes a wind-selective meandering passage communicating with the outlet of the grain discharge conveyor, and a filling hopper for feeding the grains into the straw bag is connected to the wind-selective meandering passage behind the sorting unit. On the other hand, a suction fan device is connected to the meandering passage for wind selection in front of the sorting unit,
The combine according to claim 3, wherein the soot receiving column and the suction duct are arranged between a dust outlet of the suction fan device and a soot inlet of the filling hopper.

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