JP5702679B2 - Normal combine - Google Patents

Description

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

  Conventionally, a traveling machine body having a traveling unit and a driver's seat, a reaping device having a cutting blade, a threshing device having a handling cylinder, a feeder house for supplying reaped cereals from the reaping device to the threshing device, and an engine for driving each unit And a grain sorting mechanism for sorting the threshing material of the threshing device, and a grain tank that collects the grain of the threshing device, and there is a technology for continuously harvesting and threshing the uncut cereal grains in the field (Patent Document) 1). In addition, a technique for supplying cereal meal from a reaping device to a threshing device via a feeder house and a beater is also known (see Patent Document 2).

JP 2008-263865 A JP 2000-14230 A

  In the prior art shown in Patent Literature 1 or Patent Literature 2, since drive belts or chains are provided on both the left and right sides of the reaping device and the threshing device, a mounting space for the drive mechanism is secured on both the left and right sides of the reaping device and the threshing device. There is a problem in structure such that the arrangement structure of the reaping device or the threshing device is restricted to each other and the drive belt or the like cannot be easily replaced. Further, in the prior art, since the forward drive belt and the reverse drive belt are distributed on the left and right sides of the reaping device (feeder house), there is a problem that maintenance workability of the reaping drive structure cannot be improved. .

  Accordingly, 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, an ordinary combine according to a first aspect of the present invention includes a reaping device, a threshing device having a handling cylinder, and a traveling machine body mounted with an engine, from the reaping device to the threshing device. In a normal combine that supplies cereals via a countershaft, the countershaft for driving the reaper and the handling cylinder, and a counter case provided with the countershaft, the countershaft is connected to the output shaft of the engine via a threshing clutch. And a front rotor is disposed between the threshing device and the feeder house , wherein the counter case is provided with a forward / reverse switching case, the forward / reverse switching case is provided with a forward / reverse output shaft, connecting the input shaft reaper to the reverse rotation output shaft, the connecting the thresher axis noninverting output shaft, via the reaper clutch and reaper drive belt, the said forward and reverse output shaft It is the concatenation of the Rontorota.

According to a second aspect of the present invention, in the ordinary combine according to the first aspect, the counter shaft and the forward / reverse output shaft are provided on the same axis, and the forward / reverse rotation is provided between the counter shaft and the forward / reverse output shaft. A clutch is arranged.

According to the first aspect of the present invention, a reaping device, a threshing device having a handling cylinder, and a traveling machine body equipped with an engine are provided, and cereals are supplied from the reaping device to the threshing device via a feeder house. In the ordinary combine, the countershaft for driving the mowing device and the handling cylinder, and a counter case for providing the countershaft, the countershaft is connected to the output shaft of the engine via a threshing clutch, and the threshing device A structure in which a front rotor is disposed between feeder houses, a forward / reverse switching case is provided in the counter case, a forward / reverse output shaft is provided in the forward / reverse switching case, and a cutting input shaft is provided in the forward / reverse output shaft. ligated, connects the thresher shaft to the noninverting output shaft, via the reaper clutch and reaper drive belt, it is obtained by connecting the front rotor in the forward-reverse output shaft Et al., Forward and reverse rotation transmission structure for transmitting the driving force to the input shaft reaper from the counter shaft can be configured compact. The forward / reverse switching operation mechanism attached to the forward / reverse switching case can be simplified. Maintenance workability of the cutting drive structure can be improved. Further, a forward / reverse switching operation mechanism and a mowing clutch operating mechanism can be installed separately, forward / reverse switching operability for forward or reverse rotation of the forward / reverse output shaft can be improved, and a mowing for driving or stopping the mowing device. Clutch operability can be improved.

Moreover, the output of an engine can be easily branched to the reaping device and the threshing device, and the drive structure of the threshing device can be made compact. Furthermore , the front rotor can be driven to rotate forward or reversely in conjunction with the conveyor in the feeder house via the cutting drive belt, and the stagnation of the cereal between the conveyor in the feeder house and the handling cylinder can be prevented. Although it can be easily prevented by the front rotor, the conveyor in the feeder house and the front rotor can be reversed to easily perform the operation of removing waste in the feeder house or in the front rotor portion.

According to the invention of claim 2 , the counter shaft and the forward / reverse output shaft are provided on the same axis, and a forward / reverse clutch is disposed between the counter shaft and the forward / reverse output shaft. While the forward / reverse clutch can be easily formed by a simple switching mechanism such as a claw clutch and the forward / reverse switching case can be made compact, a cutting drive structure such as the forward / reverse clutch can be constructed at low cost.

It is a left view of the combine which shows 1st Embodiment of this invention. It is a right view of the combine. It is a top view of the combine. It is the left perspective view which looked at the same combine from diagonally forward. It is the right perspective view which looked at the same combine from diagonally back. It is a drive system figure of the combine. It is the right perspective view which looked at the engine from diagonally backward. It is the right perspective view which looked at the engine from diagonally forward. It is the left perspective view which looked at the engine and the threshing device from diagonally forward. It is a section explanatory view of a counter axis attachment part. It is front explanatory drawing of a counter shaft attachment part.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings (FIGS. 1 to 3) applied to an ordinary combine. 1 is a left side view of the combine, FIG. 2 is a right side view thereof, FIG. 3 is a plan view thereof, FIG. 4 is a left side perspective view of the combine seen from diagonally forward, and FIG. FIG. First, the general structure of the 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 FIG. 1 to FIG. 5, the ordinary combine in the embodiment includes a traveling machine body 1 supported by a pair of left and right rubber crawler crawler belts 2 as a traveling portion. At the front part of the traveling machine body 1, a reaping device 3 for capturing uncut cereal grains such as rice (or wheat, soybeans or corn) is mounted by a single-acting lifting / lowering hydraulic cylinder 4 so as to be adjustable up and down. ing.

  On the left side of the traveling machine body 1, a threshing device 9 for threshing the harvested cereal meal supplied from the reaping device 3 is mounted. In the lower part of the threshing device 9, a grain sorting mechanism 10 for performing swing sorting and wind sorting is arranged. A driver's cab 5 on which an operator is boarded is mounted on the front right side of the traveling machine body 1. An engine 7 as a power source is arranged on the cab 5. Behind the cab 5 (on the right side of the traveling machine body 1), a grain tank 6 for temporarily storing the grains taken out from the threshing device 9, and a bowl receiving base for filling the grains in the grain tank 6 into the bag 8a. 8 is arranged. An auxiliary worker gets on board the cradle cradle 8 to carry out the grains in the grain tank 6 to the cocoon bag 8a.

  The reaping device 3 includes a feeder house 11 that communicates with a handling port 9 a at the front part of the threshing device 9, and a horizontally long bucket-like grain header 12 that is continuously provided at the front end of the feeder house 11. A scraping auger 13 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 feeder conveyor 17 is provided in the feeder house 11. A reaper 18 (front rotor) is provided on the feed end side of the supply conveyor 17 (the handling port 9a). In addition, the lower surface part of the feeder house 11 and the front end part of the traveling machine body 1 are connected via the lifting hydraulic cylinder 4, and the reaping device 3 moves up and down by the lifting hydraulic cylinder 4.

  With the above configuration, the tip side of the uncut grain culm between the left and right weed bodies 16 is scraped by the scraping reel 14, and the heel side of the uncut grain culm is cut by the cutting blade 15, and the rotation of the scraping auger 13. By driving, the grain headers 12 are collected in the vicinity of the center of the left and right width. The whole amount of the harvested cereal meal of the grain header 12 is conveyed by the supply conveyor 17 and is configured to be put into the handling port 9a of the threshing device 9 by the beater 18. The grain header 12 is provided with a horizontal control hydraulic cylinder (not shown) that rotates about the horizontal control fulcrum shaft, and the grain header 12 is adjusted by the horizontal control hydraulic cylinder to adjust the horizontal inclination of the grain header 12. 12, the cutting blade 15, and the take-up reel 14 can be supported horizontally with respect to the field scene.

  Moreover, as shown in FIG. 1 thru | or FIG. 3, the handling cylinder 21 is rotatably provided in the handling chamber of the threshing device 9. A handling cylinder 21 is pivotally supported on a handling cylinder shaft 20 extended in the front-rear 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 spiral screw blade-shaped intake blade 25 projects outward in the radial direction on the outer peripheral surface of the front portion of the handling cylinder 21.

  With the above configuration, the harvested cereal mash introduced from the handling port 9 a is kneaded between the handling cylinder 21 and the receiving net 24 while being conveyed toward the rear of the traveling machine body 1 by the rotation of the handling cylinder 21 and threshing. Is done. The threshing of grains or the like smaller than the mesh of the receiving net 24 leaks from the receiving net 24. The sawdust and the like that do not leak from the receiving net 24 are discharged from the dust outlet 23 at the rear of the threshing device 9 to the field by the conveying action of the barrel 21.

  A plurality of dust feed valves (not shown) for adjusting the conveying speed of shed grains in the handling chamber are pivotally mounted on the upper side of the handling cylinder 21 so as to be rotatable. By adjusting the angle of the dust feed valve, the conveying speed (residence time) of threshing in the handling chamber can be adjusted according to the variety and properties of the harvested cereal. On the other hand, the grain sorting mechanism 10 disposed below the threshing device 9 includes a rocking sorter 26 for specific gravity sorting having a grain pan, a chaff sheave, a grain sheave, a Strollac, and the like.

  In addition, the grain sorting mechanism 10 includes a tang fan 29 that supplies sorting wind. The threshing that has been threshed by the handling cylinder 21 and leaked from the receiving net 24 is the first of the grains (fine grains, etc.) by the specific gravity sorting action of the swing sorter 26 and the wind sorting of the Kara fan 29, It is configured so as to be sorted into second crops such as grain with branch stems and sawdust.

  A first conveyor mechanism 30 and a second conveyor mechanism 31 are provided on the lower side of the swing sorter 26 as the grain sorting mechanism 10. By selecting the swing sorter 26 and the tang fan 29, the first item such as the grain dropped from the swing sorter 26 is collected in the glen tank 6 by the first conveyor mechanism 30 and the cereal conveyor 32. A second thing such as a grain with a branch is returned to the sorting start end side of the swing sorting board 26 via the second conveyor mechanism 31 and the second reduction conveyor 33 and is re-sorted by the swing sorting board 26. . The sawdust and the like are configured to be discharged from the dust outlet 23 at the rear of the traveling machine body 1 to the field.

  Further, as shown in FIGS. 1 to 3, the cab 5 is provided with a control column 41 and a driver seat 42 on which an operator sits. The steering column 41 includes a control lever 43 that changes the path of the traveling machine body 1, a main transmission lever 44 and a sub-transmission lever 45 that switch the moving speed of the traveling machine body 1, and a cutting clutch lever that drives or stops the cutting device 3. 46 and a threshing clutch lever 47 for driving or stopping the threshing device 9 are arranged. In addition, you may attach the roof body for an awning to the upper side of the cab 5 via a support | pillar.

  As shown in FIG. 1, left and right track frames 50 are arranged on the lower surface side of the traveling machine body 1. The track frame 50 includes a drive sprocket 51 that transmits the power of the engine 7 to the crawler belt 2, a tension roller 52 that maintains the tension of the crawler belt 2, a plurality of track rollers 53 that hold the ground side of the crawler belt 2 in a grounded state, An intermediate roller 54 that holds the non-grounding side of the crawler belt 2 is provided. The front side of the crawler belt 2 is supported by the drive sprocket 51, the rear side of the crawler belt 2 is supported by the tension roller 23, the ground side of the crawler belt 2 is supported by the track roller 53, and the non-grounded side of the crawler belt 2 is supported by the intermediate roller 54. Configure to support.

  Next, the combine drive structure will be described with reference to FIGS. As shown in FIG. 6, a transmission continuously variable transmission 64 having a traveling hydraulic pump and a hydraulic motor (not shown) is provided in the mission case 63. The engine 7 is mounted on the upper right side of the front part of the traveling machine body 1, and the mission case 63 is arranged on the front part of the traveling machine body 1 on the left side of the engine 7. Further, an output shaft 65 projecting leftward from the engine 7 and an input shaft 66 projecting leftward from the mission case 63 are connected via an engine output belt 67. A charge pump 68 that drives the lifting hydraulic cylinder 4 and the like and a cooling fan 69 are arranged in the engine 7, and the charge pump 68 and the cooling fan 69 are driven by the engine 7.

  As shown in FIGS. 6 to 10, a handling cylinder drive case 71 that pivotally supports the front end side of the handling cylinder shaft 20 is provided. A barrel driving case 71 is provided on the front wall of the threshing device 9. A counter shaft 72 for driving the reaping device 3 and the handling cylinder 21 is pivotally supported on a handling cylinder drive case 71. A tang input pulley 83 is provided at the right end of the tang shaft 76 that supports the tang fan 29. A tang input pulley 83 at the right end of the tang shaft 76 is connected to the output shaft 65 of the engine 7 via a threshing clutch 84 that also serves as a tension roller and a threshing drive belt 85. That is, the red shaft 76 is connected to the output shaft 65 of the engine 7 via the threshing drive belt 85. A handling cylinder drive pulley 86 is provided at the end of the Chinese shaft 76 on the machine side where the Chinese input pulley 83 is disposed, of the right side of the Chinese shaft 76 near the engine 7. In other words, the barrel driving pulley 86 is arranged on the hot shaft 76 which is closer to the hot fan 29 than the hot input pulley 83.

  A counter input pulley 88 is disposed at the right end of the counter shaft 72 on the side close to the engine 7. A counter input pulley 88 at the right end of the counter shaft 72 is connected to the barrel driving pulley 86 via a permanent tension barrel driving belt 87. A front end side of the barrel shaft 20 is connected to an intermediate portion of the counter shaft 72 extending in the left-right direction via a bevel gear mechanism 75. The power of the engine 7 is transmitted from the Kara shaft 76 to the counter shaft 72.

  The threshing clutch 84 is controlled to be turned on and off by the operator's threshing clutch lever 47 operation. When the threshing clutch 84 is turned on, the handling cylinder 21 is driven via the counter shaft 72, and the cereals thrown in from the beater 18 are continuously threshed by the handling cylinder 21.

  Further, a tang shaft 76 is connected to the left end portion of the first conveyor shaft 77 of the first conveyor mechanism 30 and the left end portion of the second conveyor shaft 78 of the second conveyor mechanism 31 via the conveyor drive belt 111. ing. The left end portion of the second conveyor shaft 78 is connected to the left end portion of the crank-shaped swing drive shaft 79 pivotally supported by the rear portion of the swing sorting plate 26 via the swing sorting belt 112. The cereal conveyor 32 is driven via the first conveyor shaft 77, and the first selected grain of the first conveyor mechanism 30 is collected in the glen tank 6. In addition, the second reduction conveyor 33 is driven via the second conveyor shaft 78, and the second selected grain mixed with the sawdust from the second conveyor mechanism 31 is returned to the upper surface side of the rocking sorter 26.

  On the other hand, a beater shaft 82 that pivotally supports the beater 18 is provided. The left end portion of the beater shaft 82 is connected to the left end portion of the counter shaft 72 via the mowing drive belt 114 and the mowing clutch 115. A cutting input shaft 89 that pivotally supports the feed end side of the supply conveyor 17 is provided. The left end portion of the cutting input shaft 89 is connected to the beater shaft 82 via the cutting drive chain 116. A header drive shaft 91 is provided on the grain header 12. The right end of the cutting input shaft 89 is connected to the header drive shaft 91 via the header drive chain 90. A scraping shaft 93 that pivotally supports the scraping auger 13 is provided. A header drive shaft 91 is connected to the drive shaft 93 via a drive drive chain 92.

  A reel shaft 94 that pivotally supports the take-up reel 14 is also provided. A header drive shaft 91 is connected to the reel shaft 94 via an intermediate shaft 95 and reel drive chains 96 and 97. The cutting blade 15 is connected to the right end portion of the header driving shaft 91 via a cutting blade driving crank mechanism 98. By the turning-on / off operation of the mowing clutch 242, the feed conveyor 17, the auger 13, the hoisting reel 14, and the cutting blade 15 are driven and controlled so as to continuously mow the tip of the uncut grain culm in the field. It is configured.

  Next, as shown in FIG. 7, a tension support body 221 for disposing the threshing clutch 84 is provided. A tension support body 221 is erected on the traveling machine body 1 between the battery 222 provided on the traveling machine body 1 behind the engine 7 and the Karatsu input pulley 83. A base end portion of the tension arm 224 is pivotally supported on the upper end portion of the tension support body 221 via a support shaft 223. A tension pulley type threshing clutch 84 is rotatably provided at the tip of the tension arm 224.

  With the above configuration, as shown in FIG. 5, the engine 7 is installed inside the engine room cover 225, and the battery cover 226 is provided between the engine room cover 225 and the basket receiving base 8. The tension support 221 and the battery 222 are covered with a battery cover 226. The battery cover 226 can also be used as an air duct that introduces engine 7 cooling air (warm air) toward the tang fan 29. By removing the battery cover 226, the threshing drive belt 85 You can also check for damage.

  On the other hand, as shown in FIGS. 8 to 10, left and right mowing columns 231 are erected on the traveling machine body 1 in front of the threshing device 9. Both ends of the cutting input shaft 89 are pivotally supported on the left and right cutting posts 231 via the left and right cutting bearing bodies 232. The cutting device 3 is supported by the cutting input shaft 89 so as to be movable up and down. Further, the beater 18 is pivotally supported via a beater shaft 82 between the left and right mowing columns 231.

  Next, the forward / reverse switching structure of the reaping device 3 will be described with reference to FIGS. 6 and 8 to 11. As shown in FIGS. 6 and 8 to 11, the handling cylinder drive case 71 is extended to the left of the bevel gear case 233 as a forward / reverse switching case incorporating a bevel gear mechanism 75 for forward / reverse switching, and the bevel gear case 233. And a right cylindrical body 235 extending to the right side of the bevel gear case 233. The bevel gear case 233, the left cylindrical body 234, and the right cylindrical body 235 are integrally connected in the left-right direction. The counter shaft 72 is passed through the bevel gear case 233, the left cylinder 234, and the right cylinder 235.

  The bevel gear mechanism 75 includes a forward rotation small-diameter bevel gear 241 as a forward rotation output gear, a large-diameter bevel gear 242, and a reverse rotation small-diameter bevel gear 243 as a reverse rotation output gear. The diverted small-diameter bevel gear 241 is supported on the engaging shaft, and the large-diameter bevel gear 242 is supported on the handling cylinder input shaft 245 supported on the bevel gear case 233. A counter input pulley 88 is pivotally supported at the right end portion of the counter shaft 72 protruding from the right cylindrical body 235. A front end portion of the handling cylinder shaft 20 is connected to the handling cylinder input shaft 245. The large-diameter bevel gear 242 is engaged with the small-diameter bevel gear 241 for forward rotation, and this driving force is transmitted from the counter shaft 72 to the handling cylinder 21.

  Further, a small diameter bevel gear 243 for reverse rotation is rotatably supported on the right end portion of the forward / reverse output shaft 246, and the small diameter bevel gear 243 for reverse rotation is engaged with the large diameter bevel gear 242. A forward / reverse switching clutch body 247 is supported on an engagement shaft at the right end of the forward / reverse output shaft 246. The forward / reverse switching clutch body 247 is engaged with the forward rotation small-diameter bevel gear 241 via the forward rotation pawl clutch 248, while the forward / reverse switching clutch body 247 is engaged with the reverse rotation small-diameter bevel gear 243 via the reverse rotation pawl clutch 249. It is configured to make it. A counter output pulley 236 is pivotally supported at the left end portion of the forward / reverse output shaft 246 protruding from the left cylindrical body 234, and the cutting drive belt 114 is wound around the counter output pulley 236. A forward / reverse switching arm 252 for switching the forward / reverse switching clutch body 247 is provided, and the forward / reverse switching arm 252 is connected to the forward / reverse switching operation tool 251 via an operation rod 253.

  With the above-described configuration, the operator operates the forward / reverse switching operation tool 251 so that the forward / reverse switching clutch body 247 is engaged with the forward rotating small-diameter bevel gear 241 via the forward rotation pawl clutch 248, and the operator moves the threshing clutch 84. Is operated to operate the threshing device 9, and the reaping clutch 115 is operated to operate the reaping device 3, and the threshing is carried out while continuously harvesting the culm in the field, and the grains are collected in the glen tank 6. . On the other hand, during the harvesting operation, when the feeder house 11 or the beater is clogged with the harvested cereal grains, the operator first operates the forward / reverse switching operation tool 251 to the reverse rotation small-diameter bevel gear 243 and the reverse claw clutch 249. In the state in which the forward / reverse switching clutch body 247 is engaged, after the cutting clutch 115 is turned on, the threshing clutch 84 is turned on to feed the feed conveyor 17 and the beater 18 in reverse, and the feeder house 11 The cereals packed in etc. are moved back to the grain header 12 side, and the cereals packed in the feeder house 11 are taken out from the grain header 12 side to the outside.

  Further, the bevel gear case 233 is fastened and fixed to the front wall plate 237 of the threshing device 9. Left and right upper surface frame bodies 238 that connect upper end portions of the left and right mowing columns 231 to the front wall plate 237 are provided. The support leg 234a at the left end of the left cylindrical body 234 is fastened and fixed to the upper surface side of the left upper frame body 238. The support leg 235a at the right end of the right cylindrical body 235 is fastened and fixed to the upper surface of the right upper frame body 238. That is, the handling cylinder drive case 71 can be suspended on the high-rigidity structure by using the right and left mowing posts 231. By connecting the upper end sides of the left and right cutting posts 231 with the handle driving case 71, the standing rigidity of the left and right cutting posts 231 can be improved. The support rigidity of the beater 18 can be improved.

  As shown in FIG. 1 and FIGS. 6 to 10, a reaping device 3, a threshing device 9 having a handling cylinder 21, and a traveling machine body 1 equipped with an engine 7 are provided. A feeder house 11 is provided from the reaping device 3 to the threshing device 9. In a normal combine that supplies cereals via a chopping device 3 and a countershaft 72 that drives the barrel 21, the engine 7 is connected to the tangle shaft 76 of the threshing device 9 via a threshing drive belt 85. In addition, a barrel driving pulley 86 is provided on the rod shaft 76 on the inner side where the rod input pulley 83 is arranged in the end portion of the rod shaft 76 on the side close to the engine 7. A counter input pulley 88 arranged at the end of the counter shaft 72 on the side close to the engine 7 is connected via a cylindrical handle driving belt 87. Therefore, since a high torque torque is applied to the end of the tang shaft 76 on the side close to the engine 7, it is not necessary to form the tang shaft 76 and this bearing structure with high rigidity unlike the conventional structure. Since the threshing drive belt 85 is arranged outside the permanent tension barrel driving belt 87, the threshing drive belt 85 can be maintained more easily than the conventional structure. That is, it is easy to reduce the weight or cost of the tang shaft 76 and the bearing structure, and the handling workability such as maintenance of the threshing drive belt 85 can be improved.

  As shown in FIGS. 6 to 10, a beater 18 serving as a front rotor is disposed between the threshing device 9 and the feeder house 11, and is handled via a bevel gear mechanism 75 for forward / reverse switching at an intermediate portion of the counter shaft 72. The body shaft 20 is connected, and the beater 18 is connected to a counter output pulley 236 connected to a counter shaft 72 on the side away from the engine 7 via a cutting clutch 115 and a cutting drive belt 114. . Therefore, the beater 18 can be driven in conjunction with the supply conveyor 17 in the feeder house 11 via the cutting drive belt 114, and the stagnation of the cereal between the supply conveyor 17 and the handling cylinder 21 can be easily prevented by the beater 18. Although it is a thing, the grain mash can be supplied to the handling cylinder 21 side while threshing with the beater 18, and the degranulation performance of the grain mash can be improved.

  As shown in FIGS. 6 to 10, one end side of a cutting input shaft 89 as a feeder house conveyor shaft is connected to a beater shaft 82 as a front rotor shaft of the beater 18 via a cutting drive chain 116, and a cutting input shaft is connected. A header drive shaft 91 as a platform auger shaft is connected to the other end side of 89. Therefore, compared to the structure in which the cutting input shaft 89 is belt-transmitted to the beater shaft 82, the relative rotational speeds of the beater 18, the supply conveyor 17, and the take-up auger 13 can be maintained constant by the power transmission of the cutting drive chain 116. The drive transmission structure can be configured at a low cost.

  As shown in FIGS. 1, 6, and 8 to 11, a reaping device 3, a threshing device 9 having a handling cylinder 21, and a traveling machine body 1 on which an engine 7 is mounted are provided, and a feeder is fed from the reaping device 3 to the threshing device 9. An ordinary combine that supplies grain straws via a house 11 includes a countershaft 72 that drives the reaping device 3 and the handling cylinder 21, and a handling cylinder drive case 71 as a counter case provided with the countershaft 72. The countershaft 72 is connected to the output shaft 65 via a threshing clutch 84, and a bevel gear case 233 as a forward / reverse switching case is provided in the barrel driving case 71, and the bevel gear case 233 for forward / reverse switching is A reverse rotation output shaft 246 is provided, and a cutting input shaft 89 is connected to the forward / reverse rotation output shaft 246. Therefore, the forward / reverse transmission structure for transmitting the driving force from the counter shaft 72 to the cutting input shaft 89 can be configured in a compact manner. The forward / reverse switching operation mechanism attached to the bevel gear case 233 can be simplified. Maintenance workability of the cutting drive structure can be improved. Further, the forward / reverse switching operation mechanism and the reaping clutch operation mechanism can be installed separately, the forward / reverse switching operability for forward / reverse rotation of the forward / reverse output shaft 246 can be improved, and the reaping for driving or stopping the reaping device 3 Clutch operability can be improved.

  As shown in FIGS. 6 and 8 to 11, a beater 18 as a front rotor is arranged between the threshing device 9 and the feeder house 11, and a handling cylinder input as a normal output shaft is input to the bevel gear case 233. A shaft 245 is provided to connect the handling cylinder shaft 20 to the handling cylinder input shaft 245, while the beater 18 is connected to the forward / reverse output shaft 246 through the cutting clutch 115 and the cutting drive belt 114. Therefore, the output of the engine 7 can be easily branched to the reaping device 3 and the threshing device 9, and the drive structure of the threshing device 9 can be made compact. In addition, the beater 18 can be driven to rotate forward or reversely in conjunction with the conveyor 17 in the feeder house 11 via the cutting drive belt 114, and the stagnation of the grain between the conveyor 17 and the handling cylinder 21 in the feeder house 11 can be prevented. Although it can be easily prevented by the beater 18, the conveyor 17 and the beater 18 in the feeder house 11 can be reversed to easily remove the waste in the feeder house 11 or the beater 18 portion.

  As shown in FIGS. 6 and 8 to 11, the counter shaft 72 and the forward / reverse output shaft 246 are provided on the same axis, and the forward rotation as a forward / reverse clutch is provided between the counter shaft 72 and the forward / reverse output shaft 246. A claw clutch 248 and a reverse claw clutch 249 are arranged. Accordingly, the forward claw clutch 248 and the reverse claw clutch 249 can be easily formed by a simple switching mechanism such as a claw clutch and the forward / reverse switching bevel gear case 233 can be configured compactly. Further, a cutting drive structure such as the reverse claw clutch 249 can be configured at low cost.

1 traveling machine body 3 reaping device 7 engine 9 threshing device 11 feeder house 18 beater (front rotor)
20 Handle cylinder 21 Handle cylinder 65 Output shaft 71 of engine Handle drive case (counter case)
72 Countershaft 84 Threshing clutch 89 Cutting input shaft 114 Cutting drive belt 115 Cutting clutch 233 Bevel gear case (forward / reverse switching case)
245 Handling cylinder input shaft (forward output shaft)
246 Forward / reverse output shaft 248 Forward claw clutch (forward / reverse clutch)
249 Reverse Claw Clutch (Forward / Reverse Clutch)

Claims (2)

In a normal combine that includes a reaping device, a threshing device having a handling cylinder, a traveling machine body equipped with an engine, and supplies cereals from the reaping device to the threshing device via a feeder house,
A countershaft for driving the mowing device and a handling cylinder; and a counter case for providing the countershaft; the countershaft is connected to an output shaft of the engine via a threshing clutch; and between the threshing device and the feeder house A structure in which a front rotor is disposed ,
A forward / reverse switching case is provided in the counter case, a forward / reverse output shaft is provided in the forward / reverse switching case, a cutting input shaft is connected to the forward / reverse output shaft, a handle shaft is connected to the forward output shaft, 2. A normal combine according to claim 1 , wherein the front rotor is connected to the forward / reverse output shaft through a cutting clutch and a cutting drive belt . 2. The ordinary combine according to claim 1 , wherein the counter shaft and the forward / reverse output shaft are provided on the same axis, and a forward / reverse clutch is disposed between the counter shaft and the forward / reverse output shaft .

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