JP2017169504A - combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine capable of discharging threshing discharge dust to a limited narrow location in a field on a back face of a grain header 12 and easily preventing the threshing discharge dust from scattering in an unreaped grain direction in the field.SOLUTION: A combine includes: a reaping part 3 including a grain header 12, a feeder house 11, and a reaping blade 15; a threshing part 9 including a threshing cylinder 21; and a travel machine body 1 including a travel part 2 and engine 7. The threshing part 9 is mounted on an upper face side of the travel machine body 1 in a lateral arrangement posture with the threshing cylinder 21 facing a right/left direction. Grain culms are fed from the reaping part 3 to a threshing port 9b on one side front part of the threshing part 9 and threshing discharge dust is discharged from a dust discharge port 23 on the other side part of the threshing part 9. The dust discharge port 23 is arranged while facing a front lower part above the travel part 2 on one side of the travel machine body 1 and the dust discharge port 23 is formed while facing a back face of the grain header 12. The threshing discharge dust of the threshing part 9 is discharged toward the back face of the grain header 12.SELECTED DRAWING: Figure 20

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.

  2. Description of the Related Art Conventionally, there is a technique that includes a cutting unit having a grain header, a feeder house, and a cutting blade, a threshing unit having a handling cylinder, and a traveling machine body provided with a traveling unit and an engine. There is a technology for supplying cereals from a reaping section to the mouth of a threshing section. There is a technique for discharging threshing dust from a dust outlet on one side of the threshing part (see Patent Documents 1 to 3). There is also a technique of mounting the threshing unit on the upper surface side of the traveling machine body in a horizontal posture in which the handling cylinder is horizontally oriented.

Japanese Utility Model Publication No. 51-133628 Japanese Utility Model Publication No. 2-107944 JP-A-9-252641

  In Patent Document 1, since the dust exhaust port is provided toward the lower front part of the machine body, the crawler belt moves above the dust exhaust, but the dust exhaust port is formed on the upper surface side of the cutting unit. The cutting blade also has structural problems such as easy draining of threshing dust. In Patent Document 2, a drive case for transmitting power is arranged on the side of the dust outlet, but is a structure in which threshing dust is deposited on the upper surface of the field between the left and right traveling crawlers, and the threshing dust is collected. There are work problems such as (incineration work of threshing dust, work to level out). There is also a technique for discharging threshing dust on the non-installation side upper surface of the crawler belt as in Patent Document 3, but since the threshing dust is discharged on the rear upper surface among the upper surfaces on the crawler track non-installation side, While the threshing dust is transported to the front part of the crawler belt through the gap on the upper surface of the crawler belt, there is a structural problem such that the mud in the field and the threshing dust adhering to the crawler belt are kneaded and easily adhere to the traveling machine body.

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

  In order to achieve the above object, the combine of the invention according to claim 1 comprises a traveling machine body provided with a grain header, a feeder house, a cutting part having a cutting blade, a threshing part having a handling cylinder, a traveling part and an engine, The threshing part is mounted on the upper surface side of the traveling machine body in a horizontal orientation with the handling cylinder facing left and right, and the threshing part is supplied to the front side of the threshing part from the reaping part, and the other side part of the threshing part In a combine that discharges threshing dust from the dust outlet, the dust outlet is opened forward and downward above the traveling part on one side of the traveling machine body, and the dust outlet is formed facing the back of the grain header. The threshing dust from the threshing portion is discharged toward the back of the grain header.

  According to a second aspect of the present invention, in the combine according to the first aspect, a machine outer side plate on one side of the threshing portion is extended forward and downward, and a dust discharge machine is provided at a part of the outer side plate of the machine case. Forming an outer dust discharge guide and projecting forward from the front surface of the threshing portion between the dust guide body inside the dust ejector and the front projecting portion of the outer casing plate, the dust outlet is directed forward and downward. Is formed.

  According to a third aspect of the present invention, in the combine according to the first aspect, a drive case for transmitting power from the handling barrel to a lower grain take-out conveyor is vertically moved along the outer surface of the threshing unit. The dust discharge port is formed between a dust discharge guide body inside the dust discharge port machine that extends forward from the front of the threshing unit and the lower end of the drive case.

  According to a fourth aspect of the present invention, in the combine according to the first aspect, the traveling portion is formed by a crawler track extending on the front low rear height on the non-installation side, and is inclined to the front low rear height. The dust outlet is opened toward the upper surface of the crawler belt on the non-installation side, and the threshing dust from the threshing portion is discharged toward the front end of the crawler belt.

  According to the first aspect of the present invention, the cutting machine includes a cutting unit having a grain header, a feeder house, and a cutting blade, a threshing unit having a handling cylinder, and a traveling machine body provided with a traveling unit and an engine. The threshing unit is mounted on the upper side of the traveling machine body in a horizontally placed posture, and the threshing unit is supplied to the handling port on the one side front part of the threshing unit, and the threshing is performed from the dust outlet of the other side part of the threshing unit In the combine that discharges dust, the dust outlet is opened forward and downward above the traveling part on one side of the traveling machine body, the dust outlet is formed facing the back of the grain header, and the grain header Since it is configured to discharge the threshing dust of the threshing portion toward the back side, the threshing dust can be discharged to a narrow place of the limited field on the back side of the grain header, and the uncut grain cereal of the field Easily prevent threshing dust from splashing in the direction. That. Moreover, the threshing dust discharged | emitted from the dust outlet of the said threshing part to the field of the grain header back surface can be pressed in the mud of the field by the forward rotation of the said traveling part. It is possible to reduce scattering of threshing dust discharged to the field and to promote composting of threshing dust.

  According to the second aspect of the present invention, the outer shell plate on one side of the threshing portion is extended forward and downward, and the dust guide on the outer side of the dust outlet is formed by a part of the outer shell plate. In addition, since the dust discharge port is formed to face forward and downward between the dust discharge guide body inside the dust discharge port machine projecting forward from the front surface of the threshing unit and the front projection portion of the outer casing plate. In addition, it can be configured at low cost by reducing the number of components of the dust outlet forming part by utilizing the machine housing outer plate on one side of the threshing part, and among the places surrounded by the grain header and feeder house, Threshing dust can be appropriately discharged to a specific place such as a forward position of the traveling unit, and in addition to preventing scattering of threshing dust, composting of threshing dust can be promoted.

  According to invention of Claim 3, the drive case for transmitting motive power from the said handling cylinder to the lower grain extraction conveyor is extended up and down along the said threshing machine outer surface, The said threshing Since the dust discharge port is formed between the dust discharge guide body inside the dust discharge machine that projects forward from the front of the unit and the lower end of the drive case, the drive case of the grain take-out conveyor By utilizing this, it is possible to reduce the number of components of the dust outlet forming portion and to reduce the cost, and by using a highly rigid drive case, the rigidity of the dust outlet forming portion can be easily improved.

  According to the invention described in claim 4, the non-installation side is a structure in which the traveling portion is formed by a crawler belt extending at a front low rear height, and the non-installation side of the crawler belt inclined at a front low rear height. The non-installation side of the crawler belt that is inclined to the front low and high after opening the dust discharge port toward the upper surface and discharging the threshing dust of the threshing portion in the front end direction of the crawler belt By the guidance of the upper surface, the threshing dust can be appropriately discharged from the dust outlet of the threshing portion toward the field on the back of the grain header. Further, the threshing dust can be appropriately discharged to a specific field scene where the crawler belt advances, and the threshing dust discharged from the dust outlet toward the field on the back of the grain header is transferred to the field by the forward rotation of the crawler belt. Therefore, it is possible to reduce scattering of threshing dust discharged to the field and promote composting of threshing dust.

It is a left view of the ordinary combine which shows 1st 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. It is an expansion explanatory view of FIG. 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 front explanatory drawing of a threshing part. It is front explanatory drawing of the dust outlet part of a threshing part. It is plane explanatory drawing of a threshing part. It is a plane explanatory view of the dust outlet part of a threshing part. It is a perspective view of the threshing part seen from the right front.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments embodying the present invention will be described with reference to the drawings (FIGS. 1 to 15) applied to a normal 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, 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), there is arranged a hook receiving unit 6 for taking the grain from the threshing unit 9. The grain in the threshing part 9 is carried out by the grain discharge conveyor 8 toward the bowl 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, the handling cylinder 21 is rotatably provided in the handling chamber 22 of the threshing part 9. FIG. 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. 4-6, the air-path formation duct body arrange | positioned in the feed terminal part of the grain discharge conveyor 8 of the grain discharge conveyor 8 of the front low back high position as a grain classification | selection part which performs the selection of threshing. 10 and a suction fan device 34 that sucks and exhausts dust by introducing the sorting air into the air passage forming duct body 10. 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 bowl 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 rod receiving portion 6 is connected to the left rear end portion of the traveling machine body 1 via the stand support frame 38a, and the rod mount attached to the left rear end portion of the traveling vehicle body 1 via the column frame body 39. An arm body 39a is provided. Further, the air path 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 path forming duct body 10, and the straw bag 37 is provided on the saddle 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, 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 and 8, a driver seat 42 on which an operator sits is detachably disposed behind the control 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. doing.

  Further, as shown in FIGS. 7 and 8, a foot guard body 114 disposed between the feet of the operator sitting on the driver's seat 42 and the rear end 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, the left and right front support legs 32 and the rear support legs 33 protrude downward from the lower surface side of the traveling machine body 1, and the left and right support leg bodies 32, 33 are provided on the lower surface side of the traveling machine body 1. The left and right track frames 50 are arranged via the. 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 drive structure of the combine will be described with reference to FIGS. As shown in FIGS. 11 and 12, the transmission case 63 is provided with a hydraulic continuously variable transmission 64 for traveling speed change, in which the traveling hydraulic pump 30 and the traveling hydraulic motor 31 are built. 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.

Further, the front traveling output belt 67a is tensioned by a tension roller type traveling clutch 68, and power is transmitted from the engine 7 to the transmission case 63 to drive the left and right crawler belts 2. As shown in FIGS. 8 and 14, an 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. .

  In addition, as shown in FIGS. 10, 13, and 14, the intermediate frame 131 is erected in a backward inclined posture on the traveling machine body 1, and the left intermediate pulley 133 is connected to the upper end side of the intermediate frame 131 via the intermediate shaft 132. The right intermediate pulley 134 is pivotally supported so as to be integrally rotatable, and the front traveling output belt 67a is hung between the traveling drive pulley 69 and the left intermediate pulley 133 via the traveling clutch 68, and the right intermediate pulley 134 and the right intermediate pulley 134 are shifted. A rear traveling output belt 67b is wound around the 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, and FIG. 14, a counter shaft 72 for driving the cutting unit 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. It is comprised so that it may convey toward the air path formation duct body 10 by the grain discharge plate body 8b.

  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, and suction and discharge of the handling cylinder 21 and the suction fan device 34 are performed. The dust fan 34b is configured to be driven in conjunction. 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. Is driving.

Next, the drive structure of the cutting unit 3 will be described with reference to FIGS. 1 to 3, 7, 8, and 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 FIGS. 1 to 3, the base end portion of the reel support frame 151 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 distal ends 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. Reel support arms 155 that support the intermediate portions of the left and right reel support frames 151 are provided on the left and right side surfaces of the grain header 12.

  Further, a reel drive shaft 153 is provided on the right side surface portion of the grain header 12, the reel drive sprocket 98 and the reel drive pulley 161 are supported on the reel drive shaft 153, and the reel drive sprocket 98 and the reel drive pulley 161 are integrated. It is stuck to. 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 216 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 216 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 configured to return to the hydraulic oil tank 55 from the hydraulic continuously variable transmission 64 or the lift hydraulic circuit 216 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 so as to maintain the hydraulic oil in the hydraulic oil tank 55 at a predetermined temperature or lower.

  Next, the structure of the traveling machine body 1 will be described with reference to FIGS. 7 to 10, 13, and 14. 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 unit 5 and the saddle receiving unit 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. The saddle receiving portion 6 is disposed 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 the battery 56 is disposed on the right upper surface of the upper body frame 1b on which the engine 7 is mounted. It arrange | positions and it is comprised so that the battery 56 may be utilized for the starting power supply of the engine 7, etc.

  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.

  In addition, the lifting hydraulic cylinder 4 is attached to the front end of the lower fuselage frame 1a, and the hydraulic oil tank 55 is disposed between the front end of the upper fuselage frame 1b (the rear surface of the threshing portion 9) and the lower fuselage frame 1a, and the lifting hydraulic pressure is increased. The hydraulic oil such as the cylinder 4 is configured to be stored in 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. 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.

  The travel tension arm 149 on which the travel clutch 68 is supported is supported by the intermediate frame 131, and 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. A belt cover body 183 is stretched on the left side of the engine 7. 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 and 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 sawdust can be supplied to the oil cooler 217 as cooling air.

  Further, as shown in FIGS. 4 to 6 and the like, the heel support 38 is disposed at the rear portion of the left crawler belt 2, the heel loading port 19a of the filling hopper 19 is disposed above the heel receiving table 38, and 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 FIGS. 4 to 7, 13, 15, and the like, the handling cylinder 21 is separated from the four round pipe cylinder frames 21 a arranged on the same circumference and the cylinder frame 21 a 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 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 body 123 is detachably fastened to the body 121 with a bolt 125, and the rear cross frame end surface is attached to the rear frame body 122 and the rear horizontal frame body 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, the dust outlet 23 structure of the threshing unit 9 will be described with reference to FIGS. 5, 6, and 16 to 20. As shown in FIGS. 16 to 20, the left and right end portions of the barrel shaft 20 are rotatably supported between the left and right machine housing outer plates 451 and 452 of the threshing portion 9 through a barrel bearing body 453. A right end portion of the front surface of the grain extraction basket 25 for covering the lower surface side of the receiving net 24 is cut out, and a dust outlet chute 454 is attached to the right end portion of the front surface of the grain extraction basket 25. A dust discharge guide body 455 is attached to the right end of the front face of the grain extraction basket 25, the rear end side of the dust discharge guide body 455 is connected to the left side of the dust outlet chute 454, and the right end of the front face of the grain extraction basket 25 is connected. The front end side of the dust discharge guide body 455 is extended forward along. A right-side housing outer plate 452, a dust outlet chute 454, and a dust guide body 455 form a bowl-shaped dust outlet 23, and the dust outlet 23 formed on the upper surface side of the dust outlet chute 454 The inside of the right side of the chamber 22 is communicated.

That is, the right machine housing outer plate 452 on the right side of the threshing portion 9 extends forward and downward, and a dust discharge guide on the outside of the dust outlet 23 machine is formed by a part of the right machine housing outer plate 452. The dust outlet 23 is opened forward and downward between the dust guide body 455 on the inside of the machine 23 and the front projection of the right machine outer side plate 452. The threshing dust discharged from the right side of the handling chamber 22 to the upper surface of the dust outlet chute 454 is discharged forward and downward, and the threshing portion 9 is placed on the upper side of the traveling machine body 1 so that the handling cylinder 21 is in the horizontal orientation. It is mounted so that the harvested cereal meal is supplied from the harvesting part 3 to the handling port 9b on the left front part of the threshing part 9 through the feeder house 11, and the threshing dust is discharged from the dust outlet 23 on the right side of the threshing part 9. It is configured.

  Further, as shown in FIGS. 5, 6, and 16 to 20, a threshing drive case 458 in which a threshing drive chain 75 that couples the countershaft shaft 20 to the countershaft 72 is provided, A conveyor drive case 459 for transmitting power to the grain takeout conveyor 36 is disposed on the right side surface portion of the threshing section 9. The threshing drive case 458 is extended forward and backward in a tilted manner, and the upper end side of the conveyor drive case 459 is connected to the front lower surface side of the threshing drive case 458, and the lower end side of the conveyor drive case 459 is extended vertically downward. The dust drive port 455 extends vertically along the outer surface of the threshing unit 9 and protrudes forward from the front surface of the threshing unit 9. The dust outlet 23 is formed between 459 lower ends.

  Furthermore, a dust exhaust port 23 is opened forward and downward above the traveling unit (right crawler belt 2) on the right side of the traveling machine body 1 to form a dust exhaust port 23 so as to face the rear surface of the grain header 12, and the rear surface ( The threshing dust of the threshing portion 9 (handling chamber 22) is discharged toward the upper front end portion of the right crawler belt 2 and a traveling portion is formed in the crawler belt 2 in which the non-installation side extends to the front low and high. The dust outlet 23 is opened toward the non-installation side upper surface of the right crawler belt 2 inclined to the front low and rear height, and is configured to discharge the threshing dust in the handling chamber 22 toward the front end of the right crawler belt 2. .

  That is, the threshing dust is discharged from the dust outlet 23 toward the field on the back side of the grain header 12 by the guidance of the upper surface of the right crawler belt 2 which is inclined to the front low and the rear high. Therefore, the threshing dust in the handling chamber 22 is discharged in a specific field scene in which the right crawler belt 2 moves forward, and the threshing dust discharged from the dust outlet 23 toward the field on the back of the grain header 12 is It is configured to be pressed into the mud in the field by forward rotation. It goes without saying that when the threshing dust discharged from the dust outlet 23 is pressed into the mud, scattering of the threshing dust discharged to the field is reduced and composting of the threshing dust is promoted. Absent.

  As shown in FIGS. 3, 5, 6, and 16 to 20, the harvesting part 3 having the grain header 12, the feeder house 11, and the cutting blade 15, the threshing part 9 having the handling cylinder 21, and the traveling part A traveling machine body 1 provided with a crawler belt 2 and an engine 7 is provided, and a threshing unit 9 is mounted on the upper surface side of the traveling machine body 1 in a horizontal orientation in which the handling cylinder 21 is horizontally oriented. In the combine that supplies the cereal meal from 3 and discharges the threshing dust from the dust outlet 23 on the other side of the threshing unit 9, the dust outlet 23 is opened forward and downward above the right crawler belt 2 on the right side of the traveling machine body 1. The dust outlet 23 is formed so as to face the right side rear surface of the grain header 12, and the threshing dust discharged from the threshing unit 9 is discharged toward the rear surface of the grain header 12.

  Therefore, the threshing dust of the threshing part 9 can be discharged toward the limited narrow field in the rear side of the right side of the grain header 12, and the threshing dust of the threshing part 9 is scattered in the direction of the uncut grain culm in the field. Can be easily prevented. Further, the threshing dust discharged from the dust outlet 23 of the threshing portion 9 to the field on the back side of the right side of the grain header 12 can be pressed into the mud of the field by the forward rotation of the right crawler belt 2. While scattering of the threshing dust of the threshing part 9 discharged to the field can be reduced, composting of the threshing dust of the threshing part 9 can be promoted. In addition, as shown in FIG. 5, the left-right width dimension of the grain header 12 is formed larger than the left-right width dimension of the threshing part 9, and the right side surface of the threshing part 9 and the right side surface of the grain header 12 are arranged substantially flush with each other. And the left side part of the grain header 12 is made to protrude from the left side of the threshing part 9 to the outside of the machine.

As shown in FIGS. 5, 6, and 16 to 20, the right machine casing outer plate 452 on the right side of the threshing section 9 extends forward and downward, and a portion of the right machine casing outer plate 452 has 23 dust outlets. A dust discharge port 23 that forms an outer dust discharge guide and protrudes forward from the front surface of the threshing portion 9 is disposed between the dust discharge guide body 455 inside the machine and the front protrusion portion of the right housing outer plate 452. Is formed forward and downward. Therefore, by utilizing the right machine housing outer plate 452 on the right side of the threshing portion 9, the number of components of the dust outlet 23 forming portion can be reduced and configured at a low cost, and the place surrounded by the grain header 12 and the feeder house 11 Among them, the threshing dust can be appropriately discharged to a specific place such as the forward position of the right crawler belt 2, and in addition to preventing the threshing dust from being scattered, composting of the threshing dust can be promoted.

  As shown in FIGS. 6 and 16 to 20, a conveyor drive case 459 for transmitting power from the handling cylinder 21 to the lower grain take-out conveyor 36 extends vertically along the outer surface of the threshing unit 9. The dust outlet 23 is formed between the dust outlet guide body 455 inside the dust outlet 23 and the lower end of the conveyor drive case 459. Accordingly, the use of the conveyor drive case 459 can reduce the number of components of the dust outlet 23 forming portion and reduce the cost, and the rigidity of the dust outlet 23 forming portion can be achieved by using the high rigidity conveyor drive case 459. Etc. can be improved easily.

  As shown in FIGS. 3, 6, and 16 to 20, the crawler belt 2 has a structure in which a traveling portion is formed by a crawler belt 2 that is extended to the front low rear height on the non-installation side, and is inclined to the front low rear height. A dust outlet 23 is opened toward the upper surface of the non-installation side, and the threshing dust of the threshing portion 9 is discharged toward the front end of the crawler belt 2. Therefore, the threshing dust can be properly discharged from the dust outlet 23 of the threshing portion 9 toward the field on the back of the grain header 12 by the guidance of the upper surface of the crawler belt 2 that is inclined to the front low and the rear high. Further, the threshing dust can be appropriately discharged to a specific field scene where the crawler belt 2 moves forward, and the threshing dust discharged from the dust outlet 23 toward the field on the back of the grain header 12 is caused by the forward rotation of the crawler belt 2. Since it can be pressed into mud in the field, it is possible to reduce scattering of threshing dust discharged to the field and to promote composting of threshing dust.

1 traveling body 2 crawler track (traveling section)
3 Cutting part 7 Engine 9 Threshing part 9b Handling port 11 Feeder house 12 Grain header 15 Cutting blade 21 Handling cylinder 23 Dust outlet 36 Grain extraction conveyor 452 Right machine outer plate 455 Dust removal guide body 459 Conveyor drive case

Claims (4)

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 the handling cylinder is placed in a horizontal orientation with the handling cylinder facing left and right. In the combine that is mounted on the side and supplies cereals from the harvesting part to the handling port on the one side front part of the threshing part, and discharges threshing dust from the dust outlet of the other side part of the threshing part,
The dust outlet is opened forward and downward above the traveling part on one side of the traveling machine body, the dust outlet is formed facing the back of the grain header, and the threshing part of the threshing part is directed toward the back of the grain header. A combine that is configured to discharge threshing dust.   A machine outer side plate on one side of the threshing part is extended forward and downward, a dust discharge guide on the outside of the dust outlet is formed by a part of the machine outer side plate, and protrudes forward from the front of the threshing part. The combine according to claim 1, wherein the dust discharge port is formed to face forward and downward between a dust discharge guide body inside the dust discharge port machine and a front projecting portion of the outer casing plate.   A dust outlet that allows a drive case for transmitting power from the handling cylinder to the lower grain take-out conveyor to extend vertically along the outer surface of the threshing unit and to protrude forward from the front surface of the threshing unit. The combine according to claim 1, wherein the dust discharge port is formed between a dust discharge guide body inside the machine and a lower end portion of the drive case.   The non-installation side is configured to form the traveling portion with a crawler belt extending to the front low and rear height, and the dust outlet is opened toward the non-installation side upper surface of the crawler belt inclined to the front low and rear height. The combine according to claim 1, wherein the combine is configured to discharge threshing dust from the threshing portion toward the front end of the crawler belt.

Images