WO2017047679A1 - Moissonneuse-batteuse - Google Patents

Moissonneuse-batteuse Download PDF

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Publication number
WO2017047679A1
WO2017047679A1 PCT/JP2016/077207 JP2016077207W WO2017047679A1 WO 2017047679 A1 WO2017047679 A1 WO 2017047679A1 JP 2016077207 W JP2016077207 W JP 2016077207W WO 2017047679 A1 WO2017047679 A1 WO 2017047679A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
central
transport mechanism
transmission
scraping
Prior art date
Application number
PCT/JP2016/077207
Other languages
English (en)
Japanese (ja)
Inventor
今田　光一
森山　浩二
Original Assignee
ヤンマー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2015186100A external-priority patent/JP6528179B2/ja
Priority claimed from JP2015186101A external-priority patent/JP6624633B2/ja
Application filed by ヤンマー株式会社 filed Critical ヤンマー株式会社
Priority to KR1020187009625A priority Critical patent/KR102102064B1/ko
Priority to CN201680049104.9A priority patent/CN108024504A/zh
Publication of WO2017047679A1 publication Critical patent/WO2017047679A1/fr

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D57/00—Delivering mechanisms for harvesters or mowers
    • A01D57/12—Rotating rakes
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D57/00—Delivering mechanisms for harvesters or mowers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D61/00—Elevators or conveyors for binders or combines
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D61/00—Elevators or conveyors for binders or combines
    • A01D61/008—Elevators or conveyors for binders or combines for longitudinal conveying, especially for combines
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
    • A01D69/08—Clutches

Definitions

  • This invention relates to the combine provided with the torque limiter, and the structure of the power transmission of the cutting part in a combine.
  • a combine including a central stock transport mechanism, a right stock transport mechanism, and a left stock transport mechanism in a reaping section is known (see Patent Document 1).
  • a central scraping mechanism is connected to the central stock transport mechanism, a right scraping mechanism is connected to the right stock transport mechanism, and a left scraping mechanism is connected to the left stock transport mechanism.
  • the right-side stock transport mechanism transports the stocks of the two cereals on the right side, and transports the cereals transported by the central stock transport mechanism and the left-hand stock transport mechanism.
  • the right side stock transport mechanism that transports the stocks of the cereals for two strips, first, the sprouts transported by the central stock transport mechanism are joined, and then the sprouts transported by the left stock transport mechanism Are merged.
  • Each scraping mechanism scrapes the stock of the cereals backward, and delivers the squeezed cereal to each stock transporting mechanism.
  • the torque limiter described in Patent Document 2 is a drive shaft that transmits power to a scraping conveyance device as a scraping mechanism, and is provided at the lower end portion of the shaft that faces in the vertical direction.
  • the power of the engine as the drive unit is transmitted to the shaft via the transmission shaft, and the lower end portion of the shaft is connected to the front end of the transmission shaft inside the transmission case.
  • a star wheel is attached to the middle part of the shaft, and a pulley for supporting the scraping belt is attached to the upper end part of the shaft.
  • the torque limiter is provided at the lower end of the shaft inside the transmission case, so that when the torque limiter is maintained, it is difficult for an operator to reach the torque limiter. The work is difficult. Also, even if you attempt to maintain the torque limiter after removing the shaft from the transmission case, the pulleys and star wheels attached to the top and middle parts of the shaft are either removed from the shaft or connected to them. It is necessary to disassemble the parts. Such work requires a great deal of time, and the weight of these parts connected to the shaft causes heavy labor on the operator.
  • Such a torque limiter is used to cut off transmission of power to the central stock transport mechanism among the central stock transport mechanism, the right stock transport mechanism, and the left stock transport mechanism. And maintenance is particularly difficult. That is, since the central stock transport mechanism and the central scraping mechanism are sandwiched between the left and right stock transport mechanisms and the scraping mechanism, the working space is particularly limited.
  • the present invention provides a torque limiter in a combine provided with a torque limiter that cuts off transmission of power to a central stock transport mechanism, a right stock transport mechanism, a left stock transport mechanism, and a central stock transport mechanism.
  • the purpose is to enable easy maintenance.
  • the transport path of the central stock transport mechanism is relatively short, and the transport path of the junction with the right stock transport mechanism is narrow. Therefore, when a bundle of cereals overlaps a relatively narrow path, the central stock transport mechanism tends to clog the cereals, and the load is likely to be great. Therefore, conventionally, a configuration of a central stock transport mechanism that can stabilize the transport performance in the cutting unit has been studied.
  • the present invention aims to provide a combine equipped with a central stock transport mechanism capable of stabilizing the transport performance.
  • the invention according to the first aspect includes a central stock transport mechanism, a right stock transport mechanism, a left stock transport mechanism, and a central stock transport mechanism, which grip and transport the harvested cereal stock back. Combined with a right-side stock transport mechanism and a left-hand stock transport mechanism, each of which has a central scraping mechanism, a right-hand scraping mechanism, and a left-hand scraping mechanism in the reaping section.
  • the invention according to a second aspect is the combine described in the first aspect, further comprising a longitudinal transmission case that houses the longitudinal transmission shaft, and a split pipe joint connected to the longitudinal transmission case, the intermediate shaft and the A lateral transmission shaft is coupled to the inside of the split pipe joint, the intermediate shaft projects upward from the split pipe joint, and the torque limiter is provided at a projecting end of the intermediate shaft.
  • the top cover covers the protruding end portion and the torque limiter.
  • the invention according to a third aspect is the combine described in the second aspect, further comprising a drive wheel with a boss having a shaft hole through which the intermediate shaft passes, and the split pipe joint together with the intermediate shaft through the shaft hole.
  • a shear pin passes through an upper end portion of the drive wheel with boss projecting upward and the projecting end portion of the intermediate shaft, and the top cover includes the projecting end portion of the intermediate shaft and the drive wheel with boss. The upper end portion and the shear pin are covered.
  • the invention which concerns on a 4th aspect is connected with the said intermediate
  • the transmission case is supported by the middle conveyance drive shaft and supports the central scraping mechanism and the central stock transport mechanism.
  • the invention according to a fifth aspect is the combine described in the fourth aspect, wherein the central stock transport mechanism is a drive wheel that rotates by receiving the operation of the power transmission mechanism, and an endless belt shape that is wound around the drive wheel.
  • the central scraping mechanism includes a scraping wheel that rotates together with the driving wheel, and a rotating shaft that supports the driving wheel and the scraping wheel in a relatively non-rotatable manner.
  • the transmission case is supported in a relatively rotatable manner, and the transmission case is provided below the endless belt-like body and above the stir ring.
  • the invention according to a sixth aspect is the combine described in the fourth aspect or the fifth aspect, further comprising a central tip transport mechanism that transports the tip side of the cereals above the central stock transport mechanism, the intermediate transport The drive shaft penetrates the transmission case up and down and transmits power to the central tip transport mechanism.
  • the invention according to a seventh aspect is the combine described in any one of the fourth to sixth aspects, wherein the transmission case and the power transmission mechanism are configured to be rotatable with respect to the intermediate conveyance drive shaft.
  • the central stock transport mechanism and the central scraping mechanism are configured to be rotatable about the middle transport drive shaft.
  • the invention according to an eighth aspect is the combine described in any one of the fourth aspect to the seventh aspect, wherein the drive wheel that rotates by receiving the operation of the power transmission mechanism, and the scraper that rotates together with the drive wheel.
  • the drive wheel that rotates by receiving the operation of the power transmission mechanism
  • the scraper that rotates together with the drive wheel.
  • the transmission case so that the wheel is supported by a rotation shaft so as not to rotate relative to the wheel, and the scraping wheel that rotates together with the rotation shaft and the drive wheel is disposed along the lower surface of the transmission case. It is what has been said.
  • the torque limiter on the intermediate shaft, when performing maintenance of the torque limiter, the central stock transport mechanism and the central scraping mechanism connected to the middle transport drive shaft Since it is not necessary to remove from the transport drive shaft or disassemble the central stock transport mechanism and the central scraping mechanism, maintenance can be easily performed.
  • the cereal can be prevented from being caught on the intermediate shaft including the torque limiter.
  • the torque limiter provided on the intermediate shaft can be easily maintained by removing the top cover.
  • the torque limiter can be easily maintained by removing the top cover, including replacing the shear pin.
  • the central case mechanism and the central stock transport mechanism are supported by the transmission case supported by the middle transport drive shaft. It can support more firmly and can stabilize the conveyance performance of the cereal.
  • the cereals are not sandwiched in the space, and the disorder of the posture of the cereals is suppressed. Grains can be transported stably.
  • the drive wheel of the central stock transport mechanism and the drive wheel of the central take-up mechanism are arranged separately on one end side and the other end side of the rotary shaft, respectively, thereby torsion applied to the rotary shaft. It is possible to prevent the torque from being concentrated on one end side or the other end side. At the same time, it is possible to prevent the rotation center of the rotation shaft from being inclined. In this way, the operation of the central scraping mechanism and the central stock transport mechanism can be stabilized, so that the transport performance of the cereal can be stabilized.
  • the central scraping mechanism and the central stock transport mechanism rotate about the middle transport drive shaft, thereby spacing between two adjacent scraping mechanisms including the central scraping mechanism. And the width of the transport path of the central stock transport mechanism can be widened. This makes it possible to easily remove the cereals clogged between the two adjacent scraping mechanisms and in the transport path of the central stock transport mechanism.
  • mud or the like that adheres to the lower surface of the transmission case from the lower surface of the transmission case can be scraped off by the rotation of the additional wheel. That is, the transmission case can serve as a scraper for the take-up wheel.
  • FIG. 1 It is a perspective view which shows the split pipe coupling connected to a vertical transmission case. It is a perspective view which shows the state from which the top cover of the storage case attached to the upper surface of a split pipe joint was removed. It is sectional drawing of the XII-XII line
  • FIG. 1 is a side view of the combine 1.
  • FIG. 2 is a plan view of the combine 1.
  • the direction of the arrow A shown in FIG. 1 is the forward direction of the traveling direction.
  • the front-back direction and the up-down direction of the combine 1 are represented.
  • the front-back direction and the left-right direction of the combine 1 are represented.
  • the combine 1 includes a traveling unit 2, a mowing unit 3, a threshing unit 4, a feed chain 5, a grain tank 6, a discharge auger 7, a driving operation unit 8, and an engine 9.
  • the traveling unit 2 includes a traveling machine body 2a and a crawler 2b.
  • the pair of left and right crawlers 2b support the traveling machine body 2a.
  • the harvesting unit 3 is a part that harvests corn straw in the combine 1.
  • the cutting part 3 is provided in the front part of the traveling body 2a. As will be described later, the harvesting portion 3 of the combine 1 has a configuration for six-row cutting.
  • the threshing unit 4 is a part that separates the grains from the ears of the grains in the combine 1.
  • the threshing part 4 is provided in the upper part of the traveling body 2a.
  • the feed chain 5 provided in the threshing unit 4 conveys the culm backward while grasping the stock of the cereal during threshing.
  • the Glen tank 6 is for storing the grains after threshing and sorting in the combine 1.
  • the Glen tank 6 is provided on the side of the threshing unit 4.
  • the discharge auger 7 is for discharging the grains stored in the Glen tank 6 to the outside.
  • the discharge auger 7 has a cylindrical shape.
  • the discharge auger 7 shown in the figure is in a state of being accommodated in the combine 1 and lies in a range extending from the rear of the Glen tank 6 to the left front portion of the combine 1.
  • the cutting unit 3 includes a cutting frame 10, a pulling device 31, a weed plate 32, a cutting blade 33, a scraping device 34, and a conveying device 35.
  • each weed board 32 is pointed, and the rear part has a rounded shape.
  • Each weed plate 32 separates the culm to be harvested from the cereal that is left in the field, and separates the culm to be harvested for each line.
  • the pulling device 31 causes the cereals separated for each line by each weed board 32.
  • the pulling device 31 has six pulling cases 61 for six strips.
  • Each pulling case 61 supports a chain 62 with tine so as to be rotationally driven.
  • Each raising case 61 is located behind the weed board 32.
  • the pulling cases 61 are tilted rearward so that the rear ends thereof are disposed at positions higher than the front ends, and are arranged at appropriate intervals along the left-right direction.
  • the pulling device 31 includes pulling tines S ⁇ b> 1, S ⁇ b> 2, S ⁇ b> 3, S ⁇ b> 4, S ⁇ b> 5, and S ⁇ b> 6 that erect uncut cereal buds for each line.
  • Each pulling tine S1,..., S6 is provided in each pulling case 61.
  • the rake device 34 rakes the cereal base caused by the pulling device 31.
  • the take-in device 34 includes a first take-in mechanism Rk1, a second take-in mechanism Rk2, and a third take-in mechanism Rk3.
  • the first to third scrambling mechanisms Rk1 to Rk3 are tilted rearward so that the front side is disposed below the rear side, and are arranged at appropriate intervals along the left-right direction. As shown in FIG. 3, the scraping device 34 is disposed behind the pulling device 31.
  • the cutting device including the cutting blade 33 is provided below the scraping device 34.
  • the cutting blade 33 cuts the stalks C1 to C6 for the six strips scraped by the scraping device 34.
  • the cutting frame 10 includes a cutting input case 11, a vertical transmission case 12, a horizontal transmission case 13, a plurality of weed frames 14, a drive pipe 15, a pulling vertical transmission case 16, a vertical connecting frame (not shown), and a pulling horizontal transmission case. 17, a plurality of pull-up drive cases 18 and an intermediate conveyance drive case 20.
  • Each of these cases is a metal pipe member and has a hollow shape.
  • the cutting input case 11 lies along the left-right direction in front of the threshing portion 4.
  • a pair of left and right mounting bases 83 are provided above the crawler 2b.
  • a split pipe joint 84 is provided on the top of each mounting base 83.
  • the left and right ends of the cutting input case 11 are rotatably and detachably attached to the top of each mounting base 83 via a split pipe joint 84.
  • the vertical transmission case 12 is connected to an intermediate portion of the cutting input case 11 so that the front end of the vertical transmission case 12 is positioned below the rear end.
  • the axial direction of the vertical transmission case 12 is substantially orthogonal to the axial direction of the cutting input case 11.
  • the front end of the vertical transmission case 12 is connected to the middle part of the horizontal transmission case 13.
  • the axial direction of the horizontal transmission case 13 is substantially parallel to the axial direction of the cutting input case 11 and is substantially orthogonal to the axial direction of the vertical transmission case 12.
  • the weeding frame 14 is composed of seven pipe members for six strips.
  • the pipe members of the weeding frame 14 are arranged at appropriate intervals along the left-right direction.
  • the weeding frame 14 faces in the front-rear direction.
  • the weed board 32 is attached to the front end portion of each weed frame 14 so that the tip of each weed board 32 faces forward.
  • a drive pipe 15 is connected below the weed frame 14. By connecting the pipe members of the weeding frame 14 by the drive pipe 15, the seven pipe members for the six strips constitute the weeding frame 14 as a unit.
  • the drive pipe 15 is located below the front transmission case 13 and is bridged in the left-right direction between the left end tube member and the right end tube member of the weed frame 14.
  • the pulling vertical transmission case 16 is connected to the left end of the horizontal transmission case 13.
  • the pulling vertical transmission case 16 stands upright in a forward leaning posture so that the upper end of the pulling vertical transmission case 16 is positioned forward of the lower end.
  • the axial direction of the pulling vertical transmission case 16 is directed in the vertical direction.
  • a vertical connection frame is connected to the right end of the horizontal transmission case 13 (not shown).
  • the axial direction of the vertical connection frame is directed in the vertical direction.
  • the pulling lateral transmission case 17 is stretched between the upper end portion of the pulling vertical transmission case 16 and the upper end portion of the vertical connection frame along the left-right direction.
  • a pulling drive case 18 is connected to the pulling lateral transmission case 17.
  • the pulling drive case 18 is composed of six pipe members for six strips. The axial direction of each pipe member of the pulling drive case 18 is directed in the vertical direction. Each pipe member is arranged at predetermined intervals along the left-right direction. The upper end of each pipe member is connected to the pulling lateral transmission case 17.
  • the pulling cases 61 are disposed between the weed frames 14 and the pulling drive cases 18. Each pulling case 61 is supported by the rear lower weeding frame 14 and the rear upper pulling drive case 18.
  • the middle conveyance drive case 20 is connected to an intermediate portion of the lateral transmission case 13.
  • the middle conveyance drive case 20 stands in a forward inclined posture so that the upper end of the middle conveyance drive case 20 is positioned forward of the lower end.
  • the axial direction of the middle conveyance drive case 20 is inclined more largely than the pulling longitudinal transmission case 16 with respect to the vertical direction.
  • the middle transport drive case 20 supports a central stock transport mechanism BC of the lower transport device B, which will be described later, and a left scraping mechanism R2L of the second scraping mechanism Rk2 from below along with the support frame 85.
  • the support frame 85 is connected to the weed frame 14 via a bracket 86.
  • An upper transport drive case 21 is provided above the middle transport drive case 20.
  • the axial direction of the upper transport drive case 21 points obliquely upward in the front, and substantially coincides with the axial direction of the middle transport drive case 20.
  • An upper end of the middle conveyance drive case 20 and a lower end of the upper conveyance drive case 21 are connected to a transmission case 22 that houses a power transmission mechanism 30 described later.
  • a support pipe 23 is provided between the central stock transport mechanism BC and the central tip transport mechanism UC.
  • the cutting frame 10 includes an upper center frame 19.
  • the upper center frame 19 faces in the front-rear direction and is connected to the cutting input case 11.
  • the front end of the upper center frame 19 is connected to the intermediate part of the pulling lateral transmission case 17, and the rear end is connected to the intermediate part of the cutting input case 11.
  • the upper center frame 19 is located above the vertical transmission case 12.
  • the upper center frame 19 is located above the take-in device 34 and the transport device 35.
  • the combine 1 includes a hydraulic cylinder 36.
  • the hydraulic cylinder 36 is connected to the traveling machine body 2a and the longitudinal transmission case 12 so that the front end of the hydraulic cylinder 36 is located above the rear end.
  • the cutting unit 3 rotates around the cutting input case 11 by the expansion and contraction of the hydraulic cylinder 36. This rotation raises and lowers the cutting unit 3.
  • the first scraping mechanism Rk ⁇ b> 1, the second scraping mechanism Rk ⁇ b> 2, and the third scraping mechanism Rk ⁇ b> 3 will be described as the scraping device 34.
  • the first scratching mechanism Rk1 as the right scratching mechanism is a scratching mechanism disposed on the rightmost side of the scraping device 34.
  • the first stapling mechanism Rk1 scoops the stock of the right-side two-row cereal (the first and second cereals C1 and C2 counted from the right side) of the six-row cereals.
  • the first scraping mechanism Rk1 includes a pair of left and right star-shaped scraping wheels ST1 and ST2, and a pair of left and right projection belts BL1 and BL2.
  • the first scratching mechanism Rk1 has a right-side scratching mechanism and a left-side scratching mechanism.
  • the right side take-in mechanism includes a right take-in wheel ST1, a right take-in belt BL1, a large-diameter pulley Pl1, a small-diameter pulley Ps1, and a rotation shaft G1 (see FIG. 6).
  • the left side take-in mechanism includes a left take-in wheel ST2, a left take-in belt BL2, a large-diameter pulley Pl2, a small-diameter pulley Ps2, and a rotation shaft G2 (see FIG. 6).
  • the second scraping mechanism Rk2 as the central scraping mechanism is a scraping mechanism arranged on the left side of the first scraping mechanism Rk1 in the scraping device 34.
  • the second stapling mechanism Rk2 scoops the stock of the middle 2 grains of 6 grains (the 3rd and 4th grains).
  • the second scraping mechanism Rk2 includes a pair of left and right scraping wheels ST3 and ST4 each having a star shape, and a pair of left and right scraping belts BL3 and BL4 each having a protrusion.
  • the second scratching mechanism Rk2 has a right scratching mechanism R2R and a left scraping mechanism R2L.
  • the right take-in mechanism R2R includes a right take-in wheel ST3, a right take-in belt BL3, a large diameter pulley Pl3, a small diameter pulley Ps3, and a rotation shaft G3 (see FIG. 6).
  • the left side take-in mechanism R2L includes a left take-in wheel ST4, a left take-in belt BL4, a large-diameter pulley Pl4, a small-diameter pulley Ps4, and a rotation shaft G4 (see FIG. 6).
  • the right stirring wheel ST3 is fixed to the rotation shaft G3 so as to be rotatable around the rotation shaft G3.
  • the rotation shaft G3 is tilted forward with respect to the vertical direction so that the upper end is positioned forward of the lower end, and the right take-up wheel ST3 is tilted rearward.
  • the left stirring wheel ST4 is fixed to the rotation shaft G4 so as to be rotatable about the rotation shaft G4.
  • the rotation shaft G4 is tilted forward with respect to the vertical direction so that the upper end is positioned forward of the lower end, and the left stirring wheel ST4 is tilted rearward.
  • the rotation axis G3 and the rotation axis G4 are substantially parallel.
  • the right take-up wheel ST3 and the left take-up wheel ST4 are arranged so as to be adjacent to each other along the left-right direction and mesh with each other.
  • the right take-up wheel ST3 is located on the left side of the left take-up wheel ST2 of the first take-up mechanism Rk1, and is arranged adjacent to the take-in wheel ST2 in the left-right direction. That is, the right take-up wheel ST3 is arranged so as to be sandwiched between the left-side left take-up wheel ST4 and the right-side left take-up wheel ST2. Then, the right take-up wheel ST3 is engaged with the left take-up wheel ST4.
  • the large-diameter pulley Pl3 is disposed above the right stirring wheel ST3 and is fixed to the rotation shaft G3.
  • the small-diameter pulley Ps3 is disposed on the right front side of the large-diameter pulley Pl3 and is provided to be rotatable with respect to the cutting frame 10.
  • the right take-up belt BL3 is wound around the large diameter pulley Pl3 and the small diameter pulley Ps3.
  • the large-diameter pulley Pl4 is disposed above the left stirring wheel ST4 and is fixed to the rotation shaft G4.
  • the small-diameter pulley Ps4 is disposed on the right front side of the large-diameter pulley Pl4 and is provided to be rotatable with respect to the cutting frame 10.
  • the left take-up belt BL4 is wound around the large-diameter pulley Pl4 and the small-diameter pulley Ps4.
  • the right take-up belt BL3 and the left take-up belt BL4 are arranged so as to be adjacent to each other along the left-right direction, and are arranged along the front-rear direction in a stretched state.
  • the distance between the belt surfaces facing each other, i.e., the left outer surface of the right take-up belt BL3 and the right outer surface of the left take-up belt BL4 gradually decreases from the front to the rear.
  • the third scratching mechanism Rk3 as the left scratching mechanism is a scraping mechanism arranged on the left side of the second scraping mechanism Rk2 in the scraping device 34, that is, on the leftmost side.
  • the third stapling mechanism Rk3 scoops the stock of the left 2 grain cereals (5th and 6th grains) among the 6 grains.
  • the third scraping mechanism Rk3 includes a pair of left and right scraping wheels ST5 and ST6 each having a star shape, and a pair of left and right scraping belts BL5 and BL6 each having a protrusion.
  • the third scratching mechanism Rk3 has a right scratching mechanism and a left scratching mechanism.
  • the right side take-in mechanism includes a right take-in wheel ST5, a right take-in belt BL5, a large-diameter pulley Pl5, a small-diameter pulley Ps5, and a rotation shaft G5 (see FIG. 6).
  • the left side take-in mechanism includes a left take-in wheel ST6, a left take-in belt BL6, a large-diameter pulley Pl6, a small-diameter pulley Ps6, and a rotation shaft G6 (see FIG. 6).
  • each of the scraping belts BL1, BL2, BL3, BL4, BL5, BL6 is covered with belt covers Bc1, Bc2, Bc3, Bc4, Bc5, Bc6.
  • the rotation shafts G1, G2, G3, G4, G5, and G6 rotate by receiving power. Therefore, the drive wheels ST1, ST4, ST6 and the drive belts BL1, BL4, BL6 fixed to the rotation shafts G1, G4, G6 are driven according to the power.
  • the pick-up wheels ST2, ST3, ST5 fixed to the rotation shafts G2, G3, G5 and the pick-up belts BL2, BL3, BL5 rotate by receiving the rotation of the pick-up wheels ST2, ST3, ST5.
  • the right stirring wheel ST1 rotates counterclockwise in plan view
  • the left stirring wheel ST2 rotates clockwise.
  • the right picking wheel ST4 rotates clockwise in plan view
  • the right picking wheel ST3 rotates counterclockwise.
  • the left picking wheel ST6 rotates clockwise in plan view
  • the right picking wheel ST5 rotates counterclockwise.
  • the power used in the combine 1 is not limited to the output of the engine 9, but may be an output of another configuration such as an electric motor.
  • the conveying device 35 will be described.
  • the direction in which the cereals are transported is referred to as the “transport direction”.
  • the upstream means the one closer to the cutting blade 33 in the transport direction.
  • the term “downstream” refers to a direction closer to the threshing unit 4 in the transport direction and away from the cutting blade 33.
  • the transport device 35 transports the cut cereals to the threshing unit 4. As shown in FIG. 4, the transport device 35 includes a lower transport device B, an upper transport device U, a vertical transport device V, an auxiliary transport device S, and a tip transport device T.
  • the lower conveying device B conveys the harvested cereal stock to the vertical conveying device V and conveys it to the rear upper side.
  • the lower transport device B includes a right stock transport mechanism BR, a central stock transport mechanism BC, and a left stock transport mechanism BL.
  • the central stock transport mechanism BC is located between the left stock transport mechanism BL and the right stock transport mechanism BR.
  • the lower transfer device B is formed with an intermediate junction X1 and a final junction X2.
  • the intermediate junction part X1 and the final junction part X2 are located in the forward path of the right side stock transport mechanism BR.
  • the intermediate junction X1 is formed at a position close to the central stock transport mechanism BC.
  • the final junction X2 is formed at a position close to the left stock transport mechanism BL.
  • the intermediate junction X1 faces the final point on the forward path of the central stock transport mechanism BC.
  • the intermediate junction X1 is located downstream of the transfer start end of the right stock transport mechanism BR.
  • the middle merge part X1 the third and fourth grain culms are added to the stock of the stalks corresponding to the second number.
  • the final junction X2 faces the final point in the forward path of the left stock transport mechanism BL.
  • the final junction X2 is located downstream of the intermediate junction X1.
  • the 5th and 6th grain candy is added to the stock of the 4th grain mash.
  • the right stock transport mechanism BR is the stock of the two cereals that are transported from the central stock transport mechanism BC to the stock of the two cereals of the right hand that have been scraped by the first scratching mechanism Rk1. , And the stocks of the cereals for 2 rows transported from the left side stock transport mechanism BL are joined, and the stocks of the cereals for 6 strips are transported rearward and upward while being gripped to the vertical transport device V .
  • the driven sprocket Sn1 of the right stock transport mechanism BR is fixed to the rotating shaft G1 of the first scraping mechanism Rk1.
  • the right stock transport mechanism BR includes a transport chain H1, a driven sprocket Sn1 fixed to the rotation shaft G1, a drive sprocket Sv1, idle pulleys R1a and R1b provided on the left and right sides of the drive sprocket Sv1, and a drive sprocket Sv1. And a tension pulley PT1 provided on the right front side.
  • the conveyance chain H1 is wound around a driven sprocket Sn1, a drive sprocket Sv1, idle pulleys R1a and R1b, and a tension pulley PT1. In this manner, the right stock transport mechanism BR is connected to the right scraping mechanism of the first scraping mechanism Rk1.
  • the central stock transport mechanism BC transports the stock stock of the cereal grains for the two central strips scraped by the second scraping mechanism Rk2 to the upper middle portion X1 while gripping it.
  • the central stock transport mechanism BC is arranged behind the second scraping mechanism Rk2 and in front of the left stock transport mechanism BL.
  • the transport start end of the central stock transport mechanism BC is positioned above the left stir wheel ST4, and the transport end is positioned to the right rear of the transport start end.
  • the central stock transport mechanism BC is tilted backward so that its front end is positioned below the rear end (see FIG. 3).
  • the drive sprocket Sv2 of the central stock transport mechanism BC is fixed to the rotation shaft G4 of the second scraping mechanism Rk2 so as not to be relatively rotatable. That is, the rotation shaft G4 supports the drive sprocket Sv2 so as not to be relatively rotatable.
  • the central stock transport mechanism BC includes a transport chain H2, a drive sprocket Sv2 fixed to the rotation shaft G4, a driven sprocket Sn2 provided behind the drive sprocket Sv2, and an idler provided to the right of the driven sprocket Sn2. It has a pulley R2a, an idle pulley R2b provided in front of the driven sprocket Sn2, and a tension pulley PT2 provided in front of the idle pulley R2b.
  • the conveyance chain H2 is wound around the driving sprocket Sv2, the idle pulley R2a, the driven sprocket Sn2, the idle pulley R2b, and the tension pulley PT2. In this way, the central stock transport mechanism BC is connected to the left-hand drive mechanism R2L of the second drive mechanism Rk2.
  • the endless belt-like body of the central stock transport mechanism BC is not limited to the transport chain H2, but includes a drive pulley as a drive wheel that is supported relatively unrotatably on the rotation shaft G4, a lower frame 90a, and an upper frame 90b. It may be a belt with a protrusion wound around a driven pulley supported so as to be relatively rotatable.
  • the left side stock transporting mechanism BL transports the stock of the left two cereal grains scraped by the third stapling mechanism Rk3 to the final joining portion X2 and transports it backward and upward.
  • the transport start end of the left stock transport mechanism BL is located above the left stir wheel ST6, and the transport end is positioned to the right rear of the transport start end.
  • the left stock transport mechanism BL is tilted rearward so that its front end is positioned below the rear end.
  • the driven sprocket Sn3 of the left stock transport mechanism BL is fixed to the rotation shaft G3 of the third scraping mechanism Rk3.
  • the left stock transport mechanism BL includes a transport chain H3, a driven sprocket Sn3 fixed to the rotation shaft G6, a drive sprocket Sv3, two idle pulleys R3a and R3b provided on the right rear side of the drive sprocket Sv3, A tension pulley PT3 provided in front of the drive sprocket Sv3.
  • the transport chain H3 is wound around a driven sprocket Sn3, a drive sprocket Sv3, idle pulleys R3a and R3b, and a tension pulley PT3. In this way, the left stock transport mechanism BL is connected to the left scratching mechanism of the third scraping mechanism Rk3.
  • the right stock transport mechanism BR first transports the halves of the first and second sections (first and second sections), and in the middle merging section X1, adds the second halves of the middle section and transports them to the final merging section. . Then, the right stock transport mechanism BR adds the left two cereal grains to the four cereal grains in the final junction X2. Then, the 6 grains of cereals that have passed through the final junction X2 are conveyed to the feed chain 5 via the vertical conveying device V shown in FIG.
  • the vertical conveying device V conveys the stocks of the 6 cereal grains inherited from the terminal portion in the conveying path of the right-side stock conveying mechanism BR to the auxiliary conveying device S and conveys it rearward and upward.
  • the vertical conveyance device V is located rearward of the lower conveyance mechanism B, and is inclined rearward so that its front end is located below the rear end. Further, the front end portion of the vertical transfer device V is positioned near the end portion in the transfer path of the lower transfer mechanism B, and the rear end portion is positioned left obliquely rearward of the front end portion and forward of the feed chain 5.
  • Auxiliary conveyance device S conveys the stock of 6 cereal grains inherited from the terminal portion in the conveyance path of vertical conveyance device V to threshing unit 4 (see FIG. 1).
  • the auxiliary conveyance device S is disposed on the rear upper side of the vertical conveyance device V.
  • the front end portion of the auxiliary transport device S is located near the end portion in the transport path of the vertical transport device V, and the rear end portion is located rearward and upper than the front end portion.
  • the upper transport device U transports the tips of the cereals that the lower transport device B transports.
  • the upper transport device U is positioned rearward and upward from the lower transport device B and above the vertical transport device V, and is tilted rearward so that the front end of the upper transport device U is positioned below the rear end.
  • the upper transport device U transports the right tip transport mechanism UR that transports the tips of the right side two cereals C1 and C2 and the tip of the center two cereals C3 and C4. It includes a central tip transport mechanism UC and a left tip transport mechanism UL that transports the tips of the left cereal grains C5 and C6.
  • the ear tip transport device T transports the tips of six cereal grains that are transported by the right stock transport mechanism BR, the vertical transport device V, and the auxiliary transport device S.
  • the tip conveying device T is disposed on the upper rear side of the upper conveying device U.
  • the front end portion of the tip transport device T is located in the middle of the transport path of the upper transport device U, and the rear end portion is located rearward and upper than the front end portion.
  • Each pipe or the like constituting the cutting frame 10 accommodates a shaft for transmitting power to the configuration having the drive function of the cutting unit 3.
  • the cutting input case 11 (see FIG. 4) accommodates a cutting input shaft 41 (see FIG. 5).
  • the axial center direction of the cutting input shaft 41 is substantially parallel to the left-right direction.
  • An input pulley 40 (see FIG. 5) to which power of the engine 9 is input is fixed to the left end portion of the reaping input shaft 41, and a longitudinal transmission shaft 42 is connected to the middle portion of the reaping input shaft 41.
  • the vertical transmission shaft 42 is accommodated in the vertical transmission case 12 (see FIG. 4).
  • the axial center of the vertical transmission shaft 42 faces the front-rear direction.
  • the rear end of the longitudinal transmission shaft 42 is connected to the cutting input shaft 41 via a bevel gear.
  • a front end of the vertical transmission shaft 42 is connected to an intermediate portion of the horizontal transmission shaft 43 via a bevel gear.
  • the lateral transmission shaft 43 is accommodated in the lateral transmission case 13 (see FIG. 4).
  • the axial center direction of the lateral transmission shaft 43 is substantially parallel to the left-right direction.
  • the power extracted from the middle part of the vertical transmission shaft 42 is transmitted to the drive sprocket Sv1 of the right side stock transport mechanism BR.
  • the rotation of the drive sprocket Sv1 drives the transport chain H1 of the right stock transport mechanism BR between the drive sprocket Sv1 and the driven sprocket Sn1.
  • the right take-up wheel ST1 starts rotating around the rotation axis G1 to which the driven sprocket Sn1 is fixed.
  • the right scratching mechanism of the first scratching mechanism Rk1 is driven and the left scratching mechanism is driven.
  • the power extracted from the left end of the horizontal transmission shaft 43 is transmitted to the drive sprocket Sv3 of the left stock transport mechanism BL. Due to the rotation of the drive sprocket Sv3, the transport chain H3 of the left stock transport mechanism BL is driven between the drive sprocket Sv3 and the driven sprocket Sn3. Then, the left stirring wheel ST6 starts rotating around the rotation axis G6 (see FIG. 6) to which the driven sprocket Sn3 is fixed. As a result, the left scratching mechanism of the third scraping mechanism Rk3 is driven and the right scratching mechanism is driven.
  • the power extracted from the left end of the horizontal transmission shaft 43 is transmitted to the left tip transfer mechanism UL.
  • the power extracted from the middle part of the vertical transmission shaft 42 is transmitted to the right-handed tip transport mechanism UR and the vertical transport device V.
  • the power extracted from the midway part of the cutting input shaft 41 is transmitted to the auxiliary conveying device S and the tip conveying device T.
  • the power extracted from the intermediate portion of the horizontal transmission shaft 43 is transmitted to the central stock transport mechanism BC and the central tip transport mechanism UC via the output mechanism 50.
  • the output mechanism 50 includes an intermediate shaft 38 coupled to the lateral transmission shaft 43 by meshing of the bevel gear 37a and the bevel gear 37b, an intermediate conveyance drive shaft 48 coupled to the intermediate shaft 38, and an intermediate conveyance drive shaft 48 extending from the intermediate shaft 38. And a transmission belt BL9 for transmitting power to the vehicle.
  • the intermediate conveyance drive shaft 48 has an axial length longer than that of the intermediate shaft 38.
  • the middle conveyance drive shaft 48 accommodated in the middle conveyance drive case 20 (see FIG. 3) has an axis that faces obliquely upward in the front. Power is transmitted from the intermediate shaft 38 to the intermediate conveyance drive shaft 48 by a transmission belt BL9 as an endless belt.
  • the intermediate shaft 38 is connected to the intermediate portion of the horizontal transmission shaft 43 by meshing of the bevel gear 37a and the bevel gear 37b.
  • a drive pulley 39a for rotating the transmission belt BL9 is attached to the intermediate shaft 38 so as not to be relatively rotatable.
  • the rotational force of the intermediate shaft 38 and the drive pulley 39a is transmitted to the intermediate conveyance drive shaft 48 via the transmission belt BL9.
  • the driven pulley Sn9 of the transmission belt BL9 is attached to the middle conveyance drive shaft 48 so as not to be relatively rotatable.
  • the driven pulley Sn9 rotates together with the intermediate conveyance drive shaft 48 by the power transmitted from the intermediate shaft 38 via the transmission belt BL9.
  • the rotational speed is changed by the intermediate shaft 38 provided between the lateral transmission shaft 43 and the intermediate conveyance drive shaft 48, and the power is transmitted from the lateral transmission shaft 43 to the intermediate conveyance drive shaft 48.
  • the intermediate shaft 38, the intermediate transport drive shaft 48, and the transmission belt BL9 constitute an output mechanism 50 that transmits power to the central stock transport mechanism BC and the second scavenging mechanism Rk2 as the central scrambling mechanism. ing.
  • the endless belt-like body is not limited to the transmission belt BL9, and may be a chain wound around a drive sprocket fixed to the intermediate shaft 38 and a driven sprocket fixed to the intermediate conveyance drive shaft 48.
  • Rotational force of the intermediate conveyance drive shaft 48 is transmitted to the power transmission mechanism 30.
  • the drive sprocket Sp1 of the power transmission mechanism 30 is fixed to the middle portion of the intermediate conveyance drive shaft 48 so as not to be relatively rotatable.
  • the rotation of the middle conveyance drive shaft 48 and the drive sprocket Sp1 is transmitted to the driven sprocket Sp2 via the transmission chain H7.
  • the transmission chain H7 is wound around the drive sprocket Sp1 and the driven sprocket Sp2.
  • the drive sprocket Sp1, the driven sprocket Sp2 and the transmission chain H7 constitute a power transmission mechanism 30 from the middle conveyance drive shaft 48 to the central stock transport mechanism BC and the left side take-in mechanism R2L.
  • the power transmission mechanism 30 power is transmitted to the driven sprocket Sp ⁇ b> 2 via the drive sprocket Sp ⁇ b> 1 that receives the rotational force of the intermediate conveyance drive shaft 48 and the transmission chain H ⁇ b> 7.
  • the power transmission mechanism 30 is accommodated in the transmission case 22 (see FIG. 3).
  • the driven sprocket Sp2 of the power transmission mechanism 30 is fixed to the rotation shaft G4 (see FIG. 6) so as not to be relatively rotatable, and the drive sprocket Sv2 of the central stock transport mechanism BC and the large-diameter pulley Pl4 of the left side take-in mechanism R2L It is fixed to the rotation shaft G4 so as not to be relatively rotatable. Therefore, the rotary shaft G4, the drive sprocket Sv2 of the central stock transport mechanism BC, and the left side take-up mechanism R2L are transmitted by the power transmitted from the intermediate transport drive shaft 48 via the transmission chain H7 and the driven sprocket Sp2 in the power transmission mechanism 30. The large-diameter pulley Pl4 and the driven sprocket Sp2 of the power transmission mechanism 30 rotate together.
  • the transport chain H2 of the central stock transport mechanism BC is driven between the drive sprocket Sv2 and the driven sprocket Sn2 by the rotation of the drive sprocket Sv2. Then, due to the rotation of the drive sprocket Sv2 of the central stock transport mechanism BC and the large-diameter pulley Pl4 of the left-side take-in mechanism R2L, the left take-up wheel ST4 starts to rotate around the rotation axis G4 (see FIG. 6). As a result, the left scratching mechanism R2L of the second scraping mechanism Rk2 is driven. The right scratching mechanism R2R is driven by driving the left scraping mechanism R2L of the second scraping mechanism Rk2.
  • the drive sprocket Sv2 is located on the start end side of the transport forward path.
  • the idle pulley R2a is positioned on the terminal end side of the transport forward path in the central stock transport mechanism BC, and faces the intermediate junction X1 (see FIG. 6). That is, power is transmitted from the middle transport drive shaft 48 to the transport start end portion of the central stock transport mechanism BC via the power transmission mechanism 30.
  • the conveyance start end portion in the central stock transport mechanism BC here refers to the vicinity of the portion of the drive sprocket Sv2 that faces the right scratching mechanism R2R of the second scratching mechanism Rk2.
  • the conveyance end portion in the central stock transport mechanism BC refers to the vicinity of the idle pulley R2a.
  • tension is applied to the transport return path of the central stock transport mechanism BC by the tension pulley PT2.
  • a tension coil spring 70 connected to a tension arm 80 is used for tension by the tension pulley PT2.
  • the tension arm 80 is fixed to the upper transport drive case 21 via a bracket 79 so as not to be relatively rotatable.
  • a bracket 79 provided integrally with the tension arm 80 is fixed to the upper transport drive case 21 by welding.
  • the upper transport drive case 21 is rotatably connected to the transmission case 22.
  • a clevis 78 with a rod is provided at one end 81 which is the spring receiving side of the tension arm 80.
  • a pulley shaft SP of the tension pulley PT2 is fixed to the other end 82 which is the pulley operating side of the tension arm 80.
  • the pulley shaft SP is supported on an inner ring of a radial bearing (not shown) provided on the tension pulley PT2 so that the tension pulley PT2 can freely rotate with respect to the pulley shaft SP.
  • the tension pulley PT2 is located inside the wheel of the transport chain H2.
  • a rib 97 as a spring base is provided on the upper frame 90b of the central stock transport mechanism BC so as not to be relatively movable.
  • a hook 71 at one end of the coil spring 70 is hooked in a hole formed in the rib 97 and supported by the upper frame 90b.
  • a plate portion 77 is formed at the tip of the rod of the clevis 78, and a hook 72 at the other end of the coil spring 70 is hooked in a hole formed in the plate portion 77.
  • the tension arm 80 can be rotated around the intermediate conveyance drive shaft 48 by the elastic force of the coil spring 70.
  • the tension arm 80 including the bracket 79 rotates around the middle conveyance drive shaft 48 together with the upper conveyance drive case 21.
  • the tension pulley PT2 presses the transport chain H2 from the inner side to the outer side of the wheel of the transport chain H2, and tension is applied to the transport chain H2.
  • the transmission case 22 is located at the front upper side of the left stirring wheel ST4 and is located at the rear lower side of the central stock transport mechanism BC. As shown in FIG. 8, even if a part of the transport forward path of the transport chain H ⁇ b> 2 is formed along the right side surface of the transmission case 22, the right side surface of the transmission case 22 is positioned to the right of the transport path.
  • the transmission case 22 and the power transmission mechanism 30 are configured such that the transmission case 22 does not interfere with the conveyance of the cereal, and the transmission case 22 is a conveyance path of the central stock transport mechanism BC. It is provided at a position that does not cross the outbound path.
  • the transmission case 22 is provided in parallel with the left stirring wheel ST4.
  • the rotation plane of the transmission chain H7 inside the transmission case 22 is parallel to the rotation plane of the left stirring wheel ST4.
  • the rotation plane of the transmission chain H7 is parallel to the rotation plane of the left scratching belt BL4 and the rotation plane of the conveyance chain H2 of the central stock transport mechanism BC, and is orthogonal to the rotation axis G4 and the intermediate conveyance drive shaft 48. ing.
  • the transmission case 22 is formed of a metal such as a steel material.
  • the transmission case 22 includes an upper case and a lower case.
  • the transmission case 22 includes the upper surface 22a and the lower surface 22b together with the left and right and front and rear side surfaces, and has a box shape.
  • the transmission case 22 is supported by the cutting frame 10 including the support frame 85, and is supported by the cutting frame 10 including the lateral transmission case 13 via the intermediate conveyance drive shaft 48 and the intermediate conveyance drive case 20. That is, the upper conveyance drive case 21 including the middle conveyance drive shaft 48, the middle conveyance drive case 20, the transmission case 22, and the support frame 85 constitute a rigid body as one strong structural member.
  • the rotating shaft G4 can be rotated stably, and further, the left take-up belt BL4 and the left take-up wheel ST4 are stabilized. Can operate. Further, by receiving the stable operation of the left side scratching mechanism R2L including the left scratching belt BL4 and the left scratching wheel ST4, the right side scratching mechanism R2R can be stably operated. Further, with respect to the central stock transport mechanism BC, since the drive sprocket Sv2 supported by the rotation shaft G4 can be stably rotated, the rotation of the transport chain H2 is stabilized. Thus, according to the structure of the structural member including the transmission case 22, the second scraping mechanism Rk2 as the central scraping mechanism and the central stock transport mechanism BC can be stably operated.
  • the lower surface 22b of the transmission case 22 is parallel to the left stirring wheel ST4.
  • the left stirring wheel ST4 is provided immediately below the lower surface 22b of the transmission case 22 so that the surface of the left stirring wheel ST4 is disposed along the lower surface 22b. That is, there is almost no gap between the left stirring wheel ST4 and the lower surface 22b of the transmission case 22, and the gap between the left stirring wheel ST4 and the lower surface 22b of the transmission case 22 is, for example, left scratching. It is smaller than the thickness of the insert ring ST4 and smaller than the thickness of the belt cover Bc4. Therefore, the lower surface 22b of the transmission case 22 can scrape off mud and the like adhering to the left stirring wheel ST4 by the rotation of the left stirring wheel ST4.
  • the transmission case 22 can fulfill the function as a scraper of the left stirring wheel ST4. Further, the transmission case 22 has a guide function for conveying the cereals along the side surface of the transmission case 22 and prevents the bunches of cereals from overlapping in the central stock transport mechanism UC. Therefore, the conveyance performance of the cereals in the central stock transport mechanism UC can be stabilized.
  • the configuration of power transmission in the transmission case 22 is not limited to the configuration including the chain H7 and the sprockets Sp1 and Sp2, but a configuration in which shafts on which belts and pulleys, gears or splines are formed are connected, and spur gears are connected. Or the structure which transmits motive power by mesh
  • the central tip transport mechanism UC includes a drive pulley Pv1, a driven pulley Py1, and a pulley Py2.
  • the drive pulley Pv1 is fixed to the upper end portion of the middle conveyance drive shaft 48 so as not to be relatively rotatable.
  • the intermediate conveyance drive shaft 48 penetrates the transmission case 22 and protrudes upward.
  • a drive sprocket Sp ⁇ b> 1 of the power transmission mechanism 30 is attached to a portion of the middle conveyance drive shaft 48 that passes through the lower surface of the transmission case 22 and is accommodated in the transmission case 22. Further, the middle conveyance drive shaft 48 protrudes upward from the upper surface of the transmission case 22 in a portion above the portion to which the drive sprocket Sp1 is attached.
  • the projecting end of the middle transport drive shaft 48 passes through the lower frame 91 of the central tip transport mechanism UC, and a drive pulley Pv1 of the center tip transport mechanism UC is attached to the projecting end portion so as not to be relatively rotatable. .
  • a portion between the upper end portion and the intermediate portion of the middle conveyance drive shaft 48 is accommodated in the upper conveyance drive case 21.
  • a portion above the portion accommodated in the upper transport drive case 21 passes through the lower frame 91.
  • the rotary shaft G4 passes through the belt cover Bc4 so as to be relatively rotatable with respect to the belt cover Bc4 above the central stock transport mechanism BC, and a headed bolt is attached to the upper end of the rotary shaft G4.
  • the driven sprocket Sp2 of the power transmission mechanism 30 is attached so as not to be relatively rotatable below the portion of the rotary shaft G4 where the drive sprocket Sv2 of the central stock transport mechanism BC is attached.
  • the driven sprocket Sp ⁇ b> 2 is accommodated in the transmission case 22. A portion below the portion to which the driven sprocket Sp ⁇ b> 2 is attached protrudes downward from the transmission case 22.
  • a left stirring wheel ST4 is attached to the lower end of the rotation shaft G4 so as not to be relatively rotatable. That is, the rotation shaft G4 supports the left scraping wheel ST4 so as not to be relatively rotatable below the drive sprocket Sv2 of the central stock transport mechanism BC.
  • the driven pulley Py1 of the central tip transport mechanism UC is supported by the lower frame 91 and the upper frame 92 so as to be relatively rotatable behind the drive pulley Pv1. Further, the pulley Py2 of the central tip transport mechanism UC is supported by the lower frame 91 and the upper frame 92 in a relatively rotatable manner in front of the drive pulley Pv1.
  • the driven sprocket Sn2 of the central stock transport mechanism BC is supported by the lower frame 90a and the upper frame 90b so as to be relatively rotatable below the driven pulley Py1 of the central tip transport mechanism UC.
  • a rake belt BL8 with a protrusion is wound around the driving pulley Pv1, the driven pulley Py1, and the pulley Py2. Power is transmitted to the central tip transport mechanism UC from the middle transport drive shaft 48 via the drive pulley Pv1.
  • the drive pulley Pv1 constitutes a part of the transport return path and operates to pull the terminal end of the transport forward path. In this way, the operation of the drive pulley Pv1 prevents the take-up belt BL8 from being loosened, so that the central tip transport mechanism UC stably stabilizes the tip side of the cereal by the drive belt BL8 to the tip transport device T. Can be transported.
  • a pulling vertical transmission shaft 46 is connected to the left end of the horizontal transmission shaft 43 via a bevel gear.
  • the pulling vertical transmission shaft 46 is accommodated in the pulling vertical transmission case 16.
  • a pulling lateral transmission shaft 47 is connected to the upper end of the pulling vertical transmission shaft 46 via a bevel gear.
  • the pulling lateral transmission shaft 47 is accommodated in the pulling lateral transmission case 17.
  • a plurality of pulling drive shafts 59 are connected to the pulling lateral transmission shaft 47 through bevel gears.
  • a pulling tine drive shaft 57 is connected to each pulling drive shaft 59 via a bevel gear.
  • the pulling tine drive shaft 57 is inserted into the pulling drive case 18.
  • the lower end of the pulling tine drive shaft 57 protrudes from the lower end of the pulling drive case 18.
  • a drive sprocket 58 used for driving the pulling tines S1,..., S6 of the pulling case 61 is fixed to the lower end portion of each pulling tine drive shaft 57.
  • Each drive sprocket 58 is supported by winding the upper part of each tinned chain 62. Elevating tines S1,..., S6 are attached to the tine chain 62, respectively.
  • Power is transmitted from the horizontal transmission shaft 43 to the drive sprocket 58 of each pulling case 61 via the pulling vertical transmission shaft 46, the pulling horizontal transmission shaft 47, the pulling drive shaft 59, and the pulling tine drive shaft 57.
  • a pulling speed change mechanism 60 is incorporated in the middle of the pulling vertical transmission shaft 46.
  • the drive speeds of the pulling tines S1,..., S6 of the pulling case 61 are switched by the pulling transmission mechanism 60. Further, the power extracted from the lateral transmission shaft 43 is transmitted to the cutting blade 33.
  • the cereal grains C1 to C6 that are scraped backward by the scraping device 34 are cut by the cutting blade 33.
  • the cereal grains C1 and C2, the cereal grains C3 and C4, and the cereal grains C5 and C6 are conveyed to the threshing unit 4 while being merged with each other in the conveying device 35.
  • the stocks of the grain straws C1 to C6 are transported by the lower transport device B, the vertical transport device V and the auxiliary transport device S, and the tip is transported by the upper transport device U and the tip transport device T.
  • the transmission case 22 and the power transmission mechanism 30 are configured to be rotatable with respect to the cutting frame 10 (see FIG. 4) about the middle conveyance drive shaft 48. Further, the left side scraping mechanism R ⁇ b> 2 ⁇ / b> L corresponds to the cutting frame 10 including the support frame 85 together with the forward extension frame 87 as the transmission case 22 and the power transmission mechanism 30 rotate around the middle conveyance drive shaft 48. It is configured to be able to rotate.
  • the forward extension frame 87 firmly supports the belt cover Bc4, the small-diameter pulley Ps4, and the left take-in belt BL4 upward.
  • the left scraping mechanism R ⁇ b> 2 ⁇ / b> L is supported by the cutting frame 10 including the intermediate conveyance drive case 20 and the support frame 85 via the transmission case 22.
  • the forward extension frame 87 is provided between the transmission case 22 that supports the rotation shaft G4 and the belt cover Bc4, and is connected thereto.
  • the rotation shaft G4 is supported by the transmission case 22 so as to be relatively rotatable.
  • Outer rings of bearings 121 and 122 provided on the ceiling side and the bottom surface side of the transmission case 22 are supported by the transmission case 22.
  • An inner ring of the bearing 121 and an inner ring of the bearing 122 are supported on the rotation shaft G4.
  • the transmission case 22 is supported by the cutting frame 10 from below by being fixed to the support frame 85 via a lock mechanism (not shown).
  • the upper transport drive case 21 that accommodates a part of the upper side of the middle transport drive shaft 48 is connected to the lower frame 91 and the transmission case 22 of the central tip transport mechanism UC.
  • the transmission case 22 is supported from below by a support frame 85.
  • the support frame 85, the intermediate conveyance drive case 20, the intermediate conveyance drive shaft 48, the transmission case 22, the belt cover Bc4, and the forward extension frame 87 are formed as a single rigid body with the central stock transport mechanism BC and the left-side scraping mechanism R2L. I support it.
  • a support pipe 23 is provided between the central stock transport mechanism BC and the central tip transport mechanism UC.
  • the support pipe 23 is connected to the lower frame 91 of the central tip transport mechanism UC and the upper frame 90b of the central stock transport mechanism BC.
  • the central tip transport mechanism UC is supported by the upper frame 90b of the central stock transport mechanism BC via the support pipe 23 in addition to the middle transport drive shaft 48 and the upper transport drive case 21.
  • the lower end portion of the support pipe 23 is fixed to the upper frame 90b of the central stock transport mechanism BC.
  • the upper end portion of the support pipe 23 is fixed to the lower frame 91 of the central tip transport mechanism UC.
  • the transmission case 22 is configured to be rotatable with respect to the middle conveyance drive shaft 48.
  • the outer ring of the bearing 123 provided on the ceiling side of the transmission case 22 and the outer ring of the bearing 124 provided on the bottom side are supported by the transmission case 22. Further, the inner ring of the bearing 123 and the inner ring of the bearing 124 are supported by the intermediate conveyance drive shaft 48. Thereby, the transmission case 22 and the power transmission mechanism 30 can rotate with respect to the middle conveyance drive shaft 48.
  • the left-side scratching mechanism R2L including the rotation shaft G4 rotates.
  • the transmission case 22, the power transmission mechanism 30, and the left side scraping mechanism R2L including the belt cover Bc4 and the rotation shaft G4 can rotate integrally with the support frame 85.
  • the drive sprocket Sv2 attached to the rotation shaft G4 rotates around the middle conveyance drive shaft 48, so that the central stock transport mechanism BC can also rotate.
  • the transmission case 22 and the power transmission mechanism 30 can be rotated manually.
  • an operation lever (not shown) and the above-described locking mechanism are provided on the left side surface of the transmission case 22.
  • the restriction on the rotation of the transmission case 22 by the lock mechanism is released.
  • the transmission case 22 and the power transmission mechanism 30 shift to a state in which they can freely rotate with respect to the intermediate conveyance drive shaft 48.
  • the transmission case 22 and the power transmission mechanism 30 rotate. Further, due to the rotation of the transmission case 22 and the power transmission mechanism 30, the left scratching mechanism R ⁇ b> 2 ⁇ / b> L rotates around the middle conveyance drive shaft 48 as the rotation shaft G ⁇ b> 4 moves. As described above, as the transmission case 22 and the power transmission mechanism 30 rotate around the middle conveyance drive shaft 48, the belt cover Bc4, the left stirring wheel ST4, the large diameter pulley Pl4, the small diameter pulley Ps4, and The left side picking mechanism R2L including the left picking belt BL4 can rotate with respect to the cutting frame 10 including the support frame 85 together with the forward extending frame 87.
  • the right scratching mechanism R2R in the second scraping mechanism Rk2 is such that a predetermined gap Gb is generated between both pitch circles P1 and P2 by the rotation of the left scratching mechanism R2L.
  • the left side scraping mechanism R2L can be released.
  • the drive sprocket Sv2 of the central stock transport mechanism BC rotates together with the rotation shaft G4, whereby the distance between the transport start end of the transport chain H2 (see FIG. 6) and the right stock transport mechanism BR can be increased. Therefore, the grain straw jammed between the respective scraping mechanisms in the second scraping mechanism Rk2 can be easily removed.
  • a drive shaft of a motor that rotates the transmission case 22 and the power transmission mechanism 30 is connected to the transmission case 22. Due to the rotation of the motor, the transmission case 22 and the power transmission mechanism 30 rotate with respect to the intermediate conveyance drive shaft 48.
  • the structure rotated with the central stock transport mechanism BC may be sufficient, and the structure which does not rotate with rotation of the central stock transport mechanism BC may be sufficient.
  • the lower end portion of the support pipe 23 is fixed to the upper frame 90b of the central stock transport mechanism BC via a lock mechanism (not shown).
  • the transmission case 22 and the power transmission mechanism 30 are rotated, the fixing of the lower end portion of the support pipe 23 to the upper frame 90b can be canceled by releasing the fixing by the lock mechanism.
  • the central tip transport mechanism UC can remain in its original position.
  • the combine 1 is comprised so that the raising apparatus 31 can rotate.
  • the pulling drive case 18 and the pulling case 61 rotate upward about the pulling lateral transmission case 17.
  • the rotation of the pulling drive case 18 and the pulling case 61 all six lines may be rotated.
  • the pulling drive case 18 and the pulling case 61 may be rotated about a vertical axis provided at either the left end or the right end in the pulling device 31.
  • the pulling device 31 may be provided with a double door opening configuration at any position between the pulling tine S1 and the pulling tine S6.
  • the scraping device 34 is exposed on the front surface of the combine 1, so that the operator can eliminate clogging of cereal grains such as the lower transport device B and the scraping device 34 as described above.
  • the torque limiter 140 provided on the intermediate shaft 38 of the output mechanism 50 will be described with reference to FIGS.
  • the lateral transmission case 13 includes a left case 13a and a right case 13b.
  • a split pipe joint 113 is connected to the vertical transmission case 12.
  • a left case 13a and a right case 13b are connected to the left and right sides of the split pipe joint 113, respectively.
  • the bevel gear 37a and the bevel gear 37b are accommodated in the split pipe joint 113.
  • a housing case 130 is attached to the upper surface of the split pipe joint 113 with a plurality of bolts.
  • the housing case 130 includes a belt case 131 and a belt cover 132.
  • the belt cover 132 covers the upper part of the belt case 131.
  • the drive pulley 39a, the transmission belt BL9, and the driven pulley Sn9 are accommodated in a space surrounded by the belt case 131 and the belt cover 132.
  • a shaft hole 138 through which the intermediate shaft 38 passes is formed in the bottom surface 137 of the belt case 131.
  • a lower end portion 38 c of the intermediate shaft 38 is connected to the lateral transmission shaft 43 (see FIG. 5) inside the split pipe joint 113.
  • a bevel gear 37b (see FIG. 5) attached to the intermediate portion of the lateral transmission shaft 43 is meshed with the bevel gear 37b attached to the lower end portion 38c so as not to be relatively rotatable.
  • the intermediate shaft 38 is exposed inside the belt case 131 through the shaft hole 138.
  • a pulley 39 with a boss including a drive pulley 39 a is attached to the outer periphery of the intermediate portion of the intermediate shaft 38.
  • the outer ring of the radial bearing 145 is supported in the shaft hole 138.
  • a concave groove 146 is formed in the shaft hole 138, and the outer ring of the bearing 145 is fitted into the concave groove 146.
  • a retaining ring 147 that restricts the downward movement of the bearing 145 is provided below the bearing 145.
  • the inner ring of the bearing 145 is supported by the intermediate shaft 38. Therefore, the intermediate shaft 38 that receives power from the lateral transmission shaft 43 can freely rotate together with the bevel gear 37b with respect to the belt case 131.
  • a cylindrical portion 134 constituting the lower end portion of the intermediate conveyance drive case 20 is formed on the upper surface of the belt cover 132 in the housing case 130.
  • An intermediate conveyance drive shaft 48 is accommodated inside the cylindrical portion 134 that extends obliquely upward and forward from the upper surface of the belt cover 132.
  • a lower end portion of the intermediate conveyance drive shaft 48 is disposed inside the belt case 131, and a driven pulley Sn9 (see FIG. 5) around which the transmission belt BL9 is wound is attached to the lower end portion so as not to be relatively rotatable.
  • the middle conveyance drive shaft 48 can freely rotate with respect to the housing case 130.
  • a recess (not shown) for supporting an outer ring of a bearing (not shown) is formed on the bottom surface (not shown) of the belt case 131, and the inner ring of the bearing is supported by the lower end portion of the intermediate conveyance drive shaft 48.
  • a driven pulley Sn9 is provided above the bearing, and another bearing (not shown) is provided above the driven pulley Sn9.
  • the inner ring of the upper bearing is supported in the middle part of the middle conveyance drive shaft 48, and a recess for supporting the outer ring of the bearing is formed on the ceiling surface (not shown) of the belt cover 132.
  • the belt cover 132 has a shaft hole 136 formed therein.
  • the shaft hole 136 penetrates from the ceiling surface inside the belt cover 132 to the upper surface 135.
  • the shaft hole 136 and the cylindrical portion 134 are formed side by side in the belt cover 132.
  • a pulley 39 with a boss protrudes from the shaft hole 136 above the belt cover 132 together with the intermediate shaft 38.
  • Each of these protruding ends is covered with a top cover 133 (see FIG. 10).
  • the top cover 133 is detachably attached to the upper surface 135 of the belt cover 132 with a plurality of bolts (see FIGS. 10 and 11).
  • a torque limiter 140 is provided at the protruding end of the intermediate shaft 38 protruding above the belt cover 132. More specifically, the projecting end portion of the intermediate shaft 38 is provided with a torque limiter 140 constituted by an upper end portion 39 d as a projecting end portion of the pulley 39 with boss and a shear pin 141. The shear pin 141, the projecting end of the intermediate shaft 38, and the projecting end of the pulley 39 with boss are covered with a top cover 133.
  • the top cover 133 includes a protruding end portion of the intermediate shaft 38 and an upper end of the pulley 39 with the boss protruding from the split pipe joint 113 obliquely upward in the front (specifically, obliquely upward in front of the housing case 130 from the split pipe joint 113).
  • the portion 39d and the torque limiter 140 are covered.
  • a pulley 39 with a boss as a drive wheel with a boss having a substantially cylindrical shape is provided on the outer periphery of the intermediate shaft 38 so as to be able to rotate together with the intermediate shaft 38.
  • the boss-equipped pulley 39 has a shaft hole 39b through which the intermediate shaft 38 passes, and includes a disk-shaped drive pulley 39a.
  • the pulley 39 with the boss is attached along the outer periphery of the intermediate shaft 38 so that the axis of the pulley 39 with the boss substantially coincides with the axis C38 of the intermediate shaft 38.
  • the drive pulley 39a around which the transmission belt BL9 (see FIG. 5) is wound is formed integrally with the lower portion of the pulley 39 with the boss.
  • the inner ring of the radial bearing 142 is supported on the boss 39c above the portion where the drive pulley 39a is formed.
  • the outer ring of the bearing 142 is supported by the belt cover 132 so as not to be relatively rotatable. That is, the pulley 39 with the boss is supported by the belt cover 132 so as to be relatively rotatable.
  • a thrust bearing 143 is attached to the boss portion 39c above the bearing 142.
  • a pin hole 39e and a recess 39f are formed in the upper end 39d of the pulley 39 with boss.
  • the pin hole 39e passes through two locations of the boss portion 39c through the shaft core of the pulley 39 with boss (that is, the shaft core C38 of the intermediate shaft 38).
  • the concave portion 39f is formed by cutting so that the outer surface of the upper end portion 39d is recessed inward.
  • the concave portion 39f is formed in a substantially circular shape along the outer periphery of the upper end portion 39d, and the pin hole 39e crosses the concave portion 39f perpendicular to the axis of the pulley 39 with boss.
  • the shaft hole 39b that penetrates the intermediate shaft 38 is formed from the upper end to the lower end of the pulley 39 with boss.
  • the intermediate shaft 38 passes vertically through the pulley 39 with boss through the shaft hole 39b.
  • the upper end of the intermediate shaft 38 is located above the upper end of the pulley 39 with boss.
  • a pin hole 38 b is formed in the upper end portion 38 a as a protruding end portion of the intermediate shaft 38.
  • the pin hole 38b is perpendicular to the axial direction of the intermediate shaft 38, passes through the shaft core C38, and passes through the intermediate shaft 38.
  • the torque limiter 140 is provided at the upper end 38 a of the intermediate shaft 38 by inserting the shear pin 141 into the pin hole 38 b of the intermediate shaft 38 and the pin hole 39 e of the pulley 39 with boss.
  • the shear pin 141 passes through the upper end 39 d of the pulley 39 with boss and the upper end 38 a of the intermediate shaft 38.
  • the torque limiter 140 is provided on the intermediate shaft 38 of the output mechanism 50 (see FIG. 5) including the intermediate shaft 38, the intermediate conveyance drive shaft 48, and the transmission belt BL9.
  • the pulley 39 with boss can rotate together with the intermediate shaft 38.
  • the pulley 39 with boss and the intermediate shaft 38 rotate as a unit, power is transmitted from the lateral transmission shaft 43 to the intermediate conveyance drive shaft 48 via the transmission belt BL9 as shown in FIG.
  • the drive pulley 39a is housed in the housing case 130 together with the transmission belt BL9.
  • a retaining ring 144 is attached to the recess 39f of the pulley 39 with boss.
  • the shear pin 141 can be pulled out from the pin holes 38b and 39e after the retaining ring 144 is removed from the outer periphery of the pulley 39 with the boss.
  • the illustration of the retaining ring 144 is omitted for the sake of convenience in order to illustrate the shear pin 141.
  • the operation of the torque limiter 140 is as follows. In the case where clogging of cereals occurs in the central stock transport mechanism BC or the second scraping mechanism Rk2 (both see FIG. 6), a predetermined amount is applied to the central stock transport mechanism BC or the second scraping mechanism Rk2. The above load is applied. In such a case, the rotation of the conveyance chain H2 (see FIG. 6) decreases, and the rotation of the intermediate conveyance drive shaft 48 (see FIG. 5) and the pulley 39 with bosses causes the horizontal transmission shaft 43 (see FIG. 5). This is slower than the rotation of the intermediate shaft 38 that receives power from the motor. That is, the rotation of the pulley 39 with the boss is restricted with respect to the input torque from the intermediate shaft 38.
  • the torque limiter 140 is configured so that when the central stock transport mechanism BC or the second scraping mechanism Rk2 is loaded with a predetermined amount or more, the central stock transport mechanism BC and the second scraping mechanism as the central scraping mechanism are used. The transmission of power to the insertion mechanism Rk2 (see FIG. 6) is interrupted.
  • the torque limiter 140 can be easily maintained including the replacement of the shear pin 141 by removing the top cover 133 from the upper surface 135 of the belt cover 132.
  • the top cover 133 covers the upper end portion 38a as the protruding end portion of the intermediate shaft 38, the upper end portion 39d as the protruding end portion of the cylindrical rotating body, and the shear pin 141.
  • the upper end 38 a see FIG. 12
  • the upper end 39 d of the pulley 39 with boss are exposed from the housing case 130.
  • a shear pin 141 passes through the pin holes 38b and 39e formed in the upper end portions 38a and 39d.
  • the shear pin 141 can be easily pulled out from the pin holes 38b and 39e with the shear pin 141 exposed to the outside from the housing case 130. .
  • the torque limiter 140 provided on the intermediate shaft 38 is not limited to the configuration using the shear pin 141, and may be another known configuration used for the torque limiter, such as a clutch having an overrunning clutch mechanism. Good.
  • the top cover 133 may be configured to cover such a torque limiter.
  • the configuration of the cutting unit 3 of the combine 1 of the present invention can be applied to the configuration of five-row cutting or seven-row cutting.
  • the cutting part for 5-row cutting can be applied to a configuration in which power is transmitted to one central scraping mechanism.
  • either one or both of the configurations of transmitting power to each of the scoring mechanisms connected to the two central stock transport mechanisms among the three central scoring mechanisms Can be applied.
  • the present invention can be used for a combine.

Abstract

L'invention concerne une moissonneuse-batteuse dans laquelle une unité de fauchage comprend un mécanisme de transport de base de plante central, un mécanisme de transport de base de plante droit, un mécanisme de transport de base de plante gauche, et un limiteur de couple pour bloquer le transfert de force motrice au mécanisme de transport de pied de plante central, le limiteur de couple étant apte à être entretenu facilement. En conséquence, la moissonneuse-batteuse comprend un arbre de transmission longitudinal (42) relié à un arbre d'entrée de fauchage (41), un arbre de transmission transversal (43) relié à l'arbre de transmission longitudinal (42), un arbre intermédiaire (38) relié à l'arbre de transmission transversal (43), et un arbre de transport intermédiaire (48) relié à l'arbre intermédiaire (38) et transférant une force motrice à un mécanisme de transport de base de plante central (BC) et un mécanisme d'admission central (Rk2). L'arbre intermédiaire (38) comprend un limiteur de couple (140) pour bloquer le transfert de force motrice au mécanisme de transport de base de plante central (BC) et au mécanisme d'admission central (Rk2) lorsqu'une charge d'une quantité spécifique ou plus est appliquée sur le mécanisme de transport de base de plante central (BC) ou le mécanisme d'admission central (Rk2).
PCT/JP2016/077207 2015-09-18 2016-09-15 Moissonneuse-batteuse WO2017047679A1 (fr)

Priority Applications (2)

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KR1020187009625A KR102102064B1 (ko) 2015-09-18 2016-09-15 콤바인
CN201680049104.9A CN108024504A (zh) 2015-09-18 2016-09-15 联合收割机

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JP2015-186101 2015-09-18
JP2015-186100 2015-09-18
JP2015186100A JP6528179B2 (ja) 2015-09-18 2015-09-18 コンバイン
JP2015186101A JP6624633B2 (ja) 2015-09-18 2015-09-18 コンバイン

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JP4948075B2 (ja) * 2006-08-03 2012-06-06 三菱農機株式会社 コンバイン
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JP4149988B2 (ja) * 2004-11-09 2008-09-17 ヤンマー農機株式会社 コンバイン
JP4948075B2 (ja) * 2006-08-03 2012-06-06 三菱農機株式会社 コンバイン
JP2012085550A (ja) * 2010-10-18 2012-05-10 Mitsubishi Agricultural Machinery Co Ltd 多条刈りコンバイン
JP2012105613A (ja) * 2010-11-19 2012-06-07 Mitsubishi Agricultural Machinery Co Ltd ７条刈りコンバイン

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KR102102064B1 (ko) 2020-04-17
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