JP2007151448A - Grain-lifting conveyor of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester carrying out lifting and sending operation smoothly and having improved operability. <P>SOLUTION: The combine harvester has a grain-lifting conveyor (a bucket-type elevator) 144 for lifting and sending the grain obtained by threshing to a grain tank 30, and a leveling disc 309 for scattering the grain in the grain tank 30, and installed in a grain-charging opening 308 of the grain tank 30. The combine harvester has a rotary shaft 310 in a bitten-off part 307a present at the top part of a rear plate 300 of the upper part in the bucket-type elevator 144 and in a grain-discharging opening 307. The rotary shaft 310 is rotated by a belt 312 wound over a pulley 303a and a fixed tensioner 310a installed in the edge part of the rotary shaft 310 by the rotation of the pulley 303a possessed by the upper part in the grain-lifting conveyor 144. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an apparatus capable of smoothly discharging a grain to a glen tank in a general purpose combine mashing conveyor for transferring the cereal obtained by threshing in a bucket.

  In the conventional combine, the grain obtained by threshing with the threshing device etc. equipped with the threshing device provided at the upper part of the fuselage harvested by the harvesting device provided at the front part of the aircraft is lifted by the cereal conveyor from the upper part of the Glen tank As shown in FIG. 8, the lower tip of the guide plate 403 is disposed below the axial center of the upper sprocket 402 around which the chain 401 of the whipping conveyor 400 is wound as shown in FIG. It becomes easy to drop on the disk 404, and the grain is scattered by the leveling disk 404, and the grain filling rate in the Glen tank 405 is improved (Patent Document 1).

JP 2004-275053 A

However, in such a conventional combine harvesting conveyor, when the grains are harvested by the bucket 406 of the lifting conveyor 400 and put into the glen tank 405, the grain outlet provided at the top of the lifting conveyor 400 is provided. As seen from the side view, mud, swarf, and the like accumulate on the cut-out portion 407 having a substantially triangular shape, and they become walls, and the grains discharged from the bucket 406 cannot be dropped into the grain tank 405. In addition, the circulation of the grains in the cereal conveyor increases, which causes problems such as damage to the grains and damage to the parts of the corn conveyor due to clogging of the cerealing device. Therefore, it is necessary to periodically disassemble the cereal conveyor and inspect and maintain it, so workability has been reduced.
SUMMARY OF THE INVENTION An object of the present invention is to provide a combine that performs a lifting operation smoothly and improves workability.

  For this reason, the invention described in claim 1 is a combine equipped with a cereal conveyor for pumping cerealed grains to a grain tank, and is a top part of a rear plate in the upper part of the cereal conveyor, It is characterized by providing a rotating shaft in the cutting part which has in a grain discharge port.

  Invention of Claim 2 is the leveling which sprinkles a grain in a grain tank at the grain inlet of the grain conveyor of the grain tank which raises the grain obtained by threshing to the grain tank, and the grain tank In the combine comprising a disk, the top part of the rear plate in the upper part of the cereal conveyor, the rotary part is provided in the cut-out part of the grain discharge port, and the fixed tension provided at the end of the rotary shaft The rotating shaft is rotated by a wound belt.

  According to a third aspect of the present invention, in the combine according to the first or second aspect, the rotation shaft is rotated by the belt wound around the pulley by the rotation of the pulley included in the upper part of the cereal conveyor. It is characterized by that.

  According to the first aspect of the present invention, in the combine including the cereal conveyor for lifting the grain obtained by threshing to the grain tank, the top of the rear plate in the upper part of the cereal conveyor, Since a rotary shaft is provided in the cut-off portion provided in the discharge port, accumulation of mud, chips, etc. can be prevented on the cut-off portion. As a result, the lifting operation can be performed smoothly and the workability can be improved.

  According to the invention described in claim 2, the cereal conveyor for transporting the grain obtained by threshing to the grain tank, and the level for scattering the grain into the grain tank at the grain inlet of the grain tank. In a combine equipped with a ring disc, the top of the rear plate in the upper part of the cereal conveyor, which is provided with a rotary shaft at the cut-off portion of the grain outlet and wound around a fixed tension provided at the end of the rotary shaft Since the rotating shaft is rotated by the belt to be mounted, accumulation of mud, small debris and the like can be prevented on the biting portion. As a result, the lifting operation can be performed smoothly and reliably, and workability can be improved.

  According to invention of Claim 3, since a rotating shaft is rotated with the belt wound around a pulley by rotation of the pulley which has in the upper part in a whipping conveyor, the power which rotates a rotating shaft is used for a mashing conveyor. It can be obtained from a pulley having a position close to the rotating shaft to be rotated. As a result, the number of parts to be used can be reduced, and the lifting work can be performed efficiently and reliably.

The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 is an overall side view of a general purpose combine, FIG. 2 is an overall plan view of the general purpose combine, and FIG. 3 is a front view of the general purpose combine.

  A machine frame 13 is mounted on the crawler type traveling device 1, and an engine room 33 that houses the threshing unit 18, the sorting device 19, the engine 26, and the like is placed and fixed on the machine frame 13. A Glen tank 30 is disposed, and a discharge auger 23 and a rotating auger 40 for discharging grains stored therein are disposed on the side of the Glen tank 30. Further, the cutting part 8 projects forward from the machine frame 13.

  The mowing unit 8 accommodates the lateral feed auger 3 in the platform 2 in the left-right direction and rotationally drives it so as to collect the cereals at the substantially left-right center. A cutting blade 4 is provided horizontally at the lower front end of the platform 2, and a scraping reel 5 is disposed in front of the cutting blade 4. The rear part of the elevating link 6 is pivotally supported on the rear part on both sides of the platform 2, and the take-up reel 5 is rotatably supported at the front end of the elevating link 6, and the take-up reel 5 is driven to rotate by a hydraulic motor or the like. In addition, weed bodies 7 are disposed at the front ends of both sides of the platform 2.

  A conveying device 9 is disposed between the reaping unit 8 and the threshing unit 18, and the conveying device 9 stores a conveyor 11 in the feeder house 10, and is slightly on the left side with respect to the traveling direction from the center of the rear portion of the platform 2. The front end of the feeder house 10 communicates with the feed end position of the screw blade of the lateral feed auger 3 at the side. Furthermore, the terminal end of the feeder house 10 is communicated with a threshing inlet 12, and a cylindrical beater 34 having a rotation axis in the horizontal direction is arranged in the threshing inlet 12, and the threshing portion 18 is forcibly pushed into the cereal. To send to. The rear part of the feeder house 10 is supported by the machine frame 13 so as to be rotatable up and down.

  The feeder house 10 is disposed to be shifted to the left in plan view from the driver seat 15 in the center of the cabin 17 arranged at the upper position in the center of the left and right sides of the fuselage, and between the lower surface of the feeder house 10 and the machine frame 13. The cutting part 8 can be moved up and down through a hydraulic cylinder (not shown). Further, since the cabin 17 is arranged at an upper position in the center of the left and right sides of the machine body, the field of view is good, it is easy to check the cutting operation, and it is possible to get on and off from both the left and right sides. And the feeder house 10, the beater 34, and the threshing inlet 12 are provided in the left side toward the advancing direction of the machine body, and the threshing inlet 12 is arranged at the left front part of the first rotor (front rotor) 21 so that the cereal can be placed. The first rotor 21 is rotated to the right.

  The threshing unit 18 includes a rotor unit 20 including a first rotor (front rotor) 21 and a second rotor (rear rotor) 22 having axial centers on the left and right sides. The engine room 33 can be provided by using the space above the rear part, and is arranged efficiently. In addition, a sorting device (oscillating sorting device) 19 is arranged below the threshing unit 18, and the structure thereof is a drifting grain plate 25, an oscillating body 35, a tang 27 that generates a sorting wind, and the first thing selected. It consists of a first conveyor 28 that conveys in the left-right direction, a second conveyor 31 that conveys the second article, and the like.

  The first conveyor 28 and the second conveyor 31 are laterally arranged behind the crawler type traveling device 1 in a side view, and are connected to the left end portion of the first conveyor 28 and arranged in a vertical shape, which will be described later. 144, the reduction conveyor 32 connected to the left end of the first conveyor 28, and the crawler type traveling device 1 have an efficient layout. Further, the sorting device 19 is accommodated between the front and rear middle portions of the machine frame 13 and the rear portion, and the mission device 14 for running the machine body can be arranged at the front of the machine frame 13 in front of the sorting device 19 and the position behind the feeder house 10. The overall length can be shortened as an efficient layout.

  The oscillating body 35 is arranged from below the front end of the first rotor 21 to the rear end of the sorting device 19, and is supported by the oscillating link mechanism 36 so as to be oscillatable. A grain pan 35 a is formed at the front of the oscillating body 35 to receive the cereal that has fallen over the first rotor 21 and the second rotor 22. A guide plate 37 extends to the middle of the rear portion of the sorting device 19, and a waste beater 38 that forcibly sends waste to the rear is provided between the rear upper portion of the guide plate 37 and the bottom of the engine room 33. ing.

  The waste beater 38 is smaller than the outer diameters of the first rotor 21 and the second rotor 22 and has a compact and easy-to-assemble shape. The waste beater 38 has a rotational speed higher than the rotational speed of the second rotor 22 for waste. The peripheral speed of the beater 38 is set to a speed equal to or higher than that of the first rotor 21 and the second rotor 22 to enhance the performance of sending the waste to the rear. The waste beater 38 is a cylindrical body having pivot shafts on the left and right sides. The waste beater 38 conveys the waste discharged from the discharge port 24 in the left and right directions and is horizontally mounted on the rear end of the machine body in the left and right directions. The chipper type spreader 39 is cut by a plurality of bowl-shaped blades and discharged from the rear end of the machine body. Thus, the waste dropped from the discharge port 24 is forcibly sent backward by the waste beater 38 so that the waste is not dropped onto the sorting device 19. The performance is not degraded.

  In this way, the culm planted in the field is scraped by the scraping reel 5, the root part of the culm is cut by the cutting blade 4, and the culm collected by the platform 2 is transferred to the conveyor 11 and the beater 34. Is conveyed to the rear threshing unit 18. These cereals are threshed while being transferred in order from the left end to the right end of the first rotor 21 and then from the left end to the right end of the second rotor 22, and the grains that have fallen by their own weight pass through the grain pan 35a. To the sorting device 19.

  The grain that has been oscillated and sorted by the sorting device 19 is stored in the glen tank 30 from the first conveyor 28 via the cereal conveyor 144, and is carried out of the machine by the discharge auger 23 and the rotating auger 40. Then, the grain that has been screened and is insufficiently threshing is reduced to the first rotor 21 by the second conveyor 31 and threshed again. Further, after the threshing process, the waste dropped from the discharge port 24 is conveyed to the spreader 39 by the waste beater 38, and is shredded and discharged outside the machine.

  Next, the structure of the whipping conveyor which is this invention is explained in full detail. FIG. 4 is an internal schematic view of the cereal conveyor 144 and the vicinity of the entrance of the Glen tank 30 of FIG. A cereal conveyor (bucket type elevator) 144 in this example is formed by a rear plate 300, a front plate 301, and left and right side plates 302, and pulleys 303, 304 having axial centers at the upper and lower portions inside the bucket type elevator 144. Are provided, and an endless belt (chain) 305 is wound around the pulleys 303 and 304. A plurality of buckets 306 such as a substantially U-shape in a side view as viewed from above are attached to the belt 305 at appropriate intervals.

  The driving force of the first conveyor 28 is transmitted to a pulley 304 (not shown in detail) at the lower part of the bucket type elevator 144, and the belt 305 is driven as the pulley 304 rotates, and the pulley 303 at the upper part of the bucket type elevator 144. The bucket 306 moves along the belt 305 between the upper and lower sides of the grain outlet 307 provided at the upper part of the bucket type elevator 144 from the grain supply port (not shown) provided at the lower part of the bucket type elevator 144. Circulated.

  A cylindrical rotary shaft 310 such as a circular shape in a side view is provided on the cut-off portion 307a that is the top of the rear plate 300 in the grain outlet 307 in the upper part of the bucket elevator 144. The rotary shaft 310 is fixed by bearings or the like (not shown) provided at both ends of the cut-off portion 307a, and a fixing tension, which will be described later, is provided at the end of the rotary shaft 310 extending to the back surface (left side surface) side. Provided.

  FIG. 5 is a left side view of the upper part of the bucket type elevator 144, and shows the configuration of power transmission. A belt 312 is wound between a pulley 303a connected to the pulley 303 on the back surface of the pulley 303 and a fixed tension 310a provided at an end of the rotating shaft 310 via a movable tension 311b.

  Here, the grain that has passed through the Glen Sheave 137 and dropped downward and recovered most in the recovery unit 146 is beaten and raised by a plurality of buckets 306 that continuously circulate together with the belt 305, and the upper pulley 303. When the buckets 306 are reversed from the ascending direction to the descending direction along the outer periphery of the sliver, the grains are released and discharged from the grain outlet 307.

  At this time, since the pulley 303a connected to the pulley 303 rotates and the belt 312 is driven, the fixing tension 310a also rotates. As a result, the rotation shaft 310 rotates counterclockwise in the left side view (with the belt 312 and the bucket 306). In order to rotate in the same direction), mud, chips, grains, etc. do not accumulate on the rotary shaft 310 that is the cut-off portion 307a. The grain is smoothly discharged into the Glen tank 13.

  As described above in detail, the combine of this example includes a cereal conveyor (bucket type elevator) 144 that feeds the grain obtained by threshing to the grain tank 30, and a rear plate in the upper part of the bucket type elevator 144 It is a top part of 300, Comprising: The rotary shaft 310 is provided in the cut-off part 307a which the grain discharge port 307 has. In addition, the rotation shaft 310 is rotated by the belt 312 wound around the pulley 303a by the rotation of the pulley 303a provided in the upper part of the cereal conveyor 144.

  FIG. 6 is an internal schematic view showing another example of the bucket type elevator 144 constituting the rotating shaft 310 as seen from the right side. In this case, the grain input port 308 of the grain tank 30 is provided with a leveling disk 309. By rotating the leveling disk 309, the grain input from the grain input port 308 is converted into the grain. It is possible to scatter to the entire inside of the tank 30.

  FIG. 7 is a left side view of the upper part of the bucket elevator 144 similarly to the above, and shows the configuration of power transmission. Between the pulley 303a connected to the pulley 303 on the back surface of the pulley 303, the fixed tension 310a provided at the end of the rotating shaft 310, and the pulley 309a provided at the lower part of the leveling disk 309, there is a fixed tension 311a. The belt 312 is wound through the movable tension 311b.

  Since the pulley 303a connected to the pulley 303 rotates and the belt 312 is driven, the fixing tension 310a also rotates. As a result, the rotation shaft 310 rotates counterclockwise in the left side view (the same as the belt 312 and the bucket 306). ), The mud, chips and grains do not accumulate on the rotary shaft 310 that is the cut-off portion 307a, so that they do not form a wall on the rotary shaft 310, and the inside of the bucket 306 The grain is smoothly discharged onto the leveling disk 309.

  Further, since the pulley 309a is rotated by the belt 312, the leveling disk 309 rotates, the grains discharged on the leveling disk 309 are scattered, and the whole of the Glen tank 13 is filled without being biased. It becomes possible to make it. Further, since the driving force of the first conveyor 28 is transmitted to the belt 312 via the pulley 304 and the pulley 303, the leveling disk 309 and the rotating shaft 310 can be rotated without requiring a new driving source.

  As described above in detail, the combine of this example is provided in the cereal conveyor (bucket type elevator) 144 for transporting the grain obtained by threshing to the grain tank 30 and the grain inlet 308 of the grain tank 30. A leveling disk 309 for scattering the grain into the grain tank 30, the top of the rear plate 300 in the bucket elevator 144, and the rotary shaft 310 on the cutting part 307 a of the grain outlet 307. The rotating shaft 310 is rotated by the belt 312 wound around the fixed tension 310a provided at the end of the pulley 303a and the rotating shaft 310 by the rotation of the pulley 303a provided in the upper part of the cereal conveyor 144. is there.

  The shape of the rotating shaft 310 is not limited to a cylindrical shape in a side view, but may be a cylindrical shape such as a triangle or a hexagon in a side view and any shape that is difficult to deposit mud on the rotating shaft. Moreover, the shape of the bucket 306 is not limited to a substantially U shape when viewed from the side of the upper opening, and may be any shape as long as the grain can be lifted, such as a substantially V shape when viewed from the upper side.

  The drive source of the bucket elevator 144 is not limited to the driving force from the conveyor 28. A motor (not shown) is provided above the bucket elevator 144, and the pulley 303 is rotated in conjunction with the motor. Thus, the belt 305 or the belt 312 may be circulated.

It is a whole side view which shows an example of the combine of this invention. It is a whole top view of the combine of FIG. It is a front view of the combine of FIG. It is the internal schematic diagram seen from the right side which expanded the threshing conveyor 144 and the Glen tank 30 vicinity in the combine of FIG. It is a left view of the bucket type elevator 144 upper part in the combine of FIG. It is the internal schematic diagram seen from the right side surface which expanded the cereal conveyor 144 and the Glen tank 30 vicinity of another Example in the combine of FIG. It is a left view of the bucket type elevator 144 upper part of another Example in the combine of FIG. It is a left view which shows the upper part in the cereal conveyor of the conventional combine.

Explanation of symbols

18 Threshing section 28 First conveyor 30 Glen tank 144 Lifting conveyor (bucket type elevator)
300 Rear plate 301 Front plate 302 Side plate 303, 303a, 304, 309a Pulley 305, 312 Belt 306 Bucket 307 Grain discharge port 307a Cutting portion 308 Grain insertion port 309 Leveling disc 310 Rotating shaft 310a, 311a Fixed tension 311b Movable tension

Claims (3)

In a combine equipped with a cereal conveyor that lifts the grain obtained by threshing to a grain tank,
A combine comprising: a top portion of a rear plate in the upper part of the cereal conveyor, and a rotary shaft provided in a cut-off portion provided at a grain outlet. A cereal conveyor for lifting threshing grains to a glen tank;
In a combine equipped with a leveling disk that scatters grains into the grain tank at the grain inlet of the grain tank,
The top part of the rear plate in the upper part of the cereal conveyor, provided with a rotary shaft in the cut-off part in the grain outlet, and by the belt wound around the fixed tension provided at the end of the rotary shaft A combine characterized by rotating a rotating shaft.   The combine according to claim 1 or 2, wherein the rotation shaft is rotated by the belt wound around the pulley by rotation of a pulley provided in an upper portion of the cereal conveyor.

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