JP2006223261A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester capable of smoothly transferring culm at a reaping part. <P>SOLUTION: The combine harvester has a reaping part comprising right, left and central plant foot confluent transfer chains which nip and transfer each right, left and central reaped culm feet to flow together, and right, left and central raking wheels for raking the right, left and central culm feet to transfer starting parts of the right, left and central plant foot confluent transfer chains, wherein power for driving a central foot confluent transfer chain 33C is transmitted from a reaping input shaft 19 to a central transfer shaft 83 through a vertical driving shaft 44 and a horizontal driving shaft 45, a transmitting case 80 is set on a non-transfer work side of the central foot confluent transfer chain between a left foot confluent transfer chain and the central foot confluent transfer chain, a central transfer driving case 81 transmitting power not to the transfer end of the central foot confluent transfer chain but to the longitudinally central part of the non-transfer work side is set so as to transmit power from the horizontal driving shaft to the central transfer driving shaft set on the central transfer driving case. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a combine that harvests cereal grains in a field using a reaping unit and conveys the cereal grains to a threshing unit.

  Conventionally, in a harvesting part of a combine, a harvesting input case for interpolating a harvesting input shaft to which power from an engine is transmitted is supported in the left-right direction of the machine body immediately before the threshing part by a bearing attached to the front end of the machine base. A vertical transmission case for interpolating a vertical transmission shaft linked to the cutting input shaft is integrally extended from the middle portion of the cutting input case obliquely downward to the front and linked to the vertical transmission shaft. An intermediate portion of the horizontal transmission case for interpolating the horizontal transmission shaft is integrally connected to the tip of the vertical transmission case, the horizontal transmission case is supported in the left-right direction of the machine body, and the rear portion is integrated with the horizontal transmission case by the horizontal connection frame. The rear end portions of a plurality of integrated cutting frames corresponding to the number of connected cutting lines are integrally connected, and the cutting frame is integrally extended from the lateral transmission case toward the front of the machine body. The cutting frame is attached with a weed lifting device, a scraping device, and a cutting blade device according to the number of cutting lines. It is set as the structure which cuts the stock source of a chopped potato with a cutting blade, and reaps the uncut cereal potato of the field.

  In addition, the cereal masher provided in the reaping unit is configured such that the root part of the reaped cereal culm is nipped and transported by the chain, and the tip part is locked and transported by the tine to be transported to the threshing part. Of such grain feeders, as the chain for the cutting parts of the 5th and 6th cuttings, a pair of right and left sides of the right side of the right side of the right side that has been squeezed by a pair of right scraping wheels (traveling direction right side) Right stock merging / conveying chain that holds and transports the harvested cereal slaughter base upward and after the left skew, and the left two slashed cereal slaughter stock with the pair of left and right left wheels Arranged between the left stock merging and transport chain that is sandwiched and transported upward after the slant to join the transport end of the right stock merging and transport chain, and a pair of right and one set With one central streak ring, one central streak of the harvested cereal crop stock (in the case of 5 streaks) or a pair of left and right central streak rings The central two-row harvested cereal cocoon stock (in the case of Article 6) is positioned between the left and right stock merging and transporting chains, and is sandwiched and transported to the upper right and diagonally to the left of the right stock former merging and transporting chain. Central stock merger transport chain that joins before the merging part with the harvested cereal sorghum root, and the termination end part of the right stock merging transport chain for the merged 5 or 6 harvested cereal cocoon roots From the left side of the vertical transmission case, there is provided a stock transport chain (vertical transport chain) that is handed over to the transport start end of the feed chain that is stretched on the left side of the threshing section.

  In such a cutting part, the left and right stock former merge transport chains can be independently driven among the right and left stock merge merge chains. Of the pair of left and right stirring wheels provided on the transport start end side of the left stock merging and transporting chain, the right left stirring wheel is engaged with the central stirring wheel or linked via a transmission mechanism. It is configured so that power is transmitted from the left scratching wheel to the central scratching wheel when the left scratching wheel is driven and rotated. The central stock merge transfer chain, in which the transfer start end portion is wound and supported on a ring, can be driven (see, for example, Patent Documents 1 and 2). However, when the central stock merge transfer chain is driven, an excessive load is applied to the scraper wheel, and the scraper wheel is likely to be damaged or worn. Therefore, there is a problem that the transporting side of the central stock merger transport chain becomes a loose side and the non-transporter side becomes a tight side, so that the transport force of the central stock merger transport chain becomes weak.

Then, the above-mentioned problem is solved by providing a transmission path in the reaper that enables the central stock merge merge chain to be driven independently like the left and right stock merge merge chains. For example, in the middle part of the vertical transmission case, a power take-out part is provided below the rotating body on which the conveyance end side of the right stock confluence conveyance chain is wound, and the central stock confluence is located downstream of the power take-out part. A power take-out unit is provided below the rear part of the transfer chain to drive the right stock merge and transfer chain and the central stock merge and transfer chain (see, for example, Patent Documents 3, 4, and 5), and the left stock merge and transfer chain on the left. It was set as the structure driven from the transmission path to the raising case and the transmission case.
Japanese Utility Model Publication No. 62-39435 Japanese Utility Model Publication No. 62-39436 JP 2001-148927 A JP-A-9-172845 Japanese Utility Model Publication No. 1-66820

  However, as in Patent Document 3, if the gear mechanism that is the rear part of the central stock merger and transfer chain and serves as the input part and the transmission part is arranged above the power take-out part, the case is formed by the gear mechanism. Since the center stock merge transfer chain is located between the left and right stock merge transport chains, it is located at the rear of the gear mechanism and the central stock merge transport chain. The input shaft erected from the case hindered the stock transportation, causing catch and accumulation of grass and mud. Further, since the input sprocket is located at the highest position at the rear, there is a problem that the input shaft becomes long and the strength is lowered.

  Therefore, in the present invention, the transmission portion is arranged at a low position so as to lower the center of gravity so as not to obstruct the conveyance, and the input portion of the central stock merger conveyance chain is also arranged at a position where it does not obstruct the conveyance, thereby smoothly. We intend to provide a central stock transporter that can be transported and has strength.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

  That is, in claim 1, the left and right and central stock former confluence conveyance chains that sandwich and convey each of the left and right and central harvested cereal stocks, and the left and right and central stock former confluence conveyance chains are conveyed. In a combine having a cutting part with left and right and center cutting wheels that scrape the left and right and center cutting cereal stalk bases at the start end, the central stock from the cutting input shaft through the vertical and horizontal transmission axes It is configured to transmit power to the central transport drive shaft that drives the original confluence transport chain, and is transmitted to the non-conveying action side of the central stock confluence transport chain between the left stock confluence transport chain and the central stock confluence transport chain Provide a case, provide a central conveyance drive case that transmits power from the transmission case to the front and rear intermediate portion of the non-conveying action side instead of the conveyance terminal end of the central stock merger conveyance chain, and from the lateral transmission shaft Central transfer drive case It is obtained by configured to transmit the configuration to the power to transmit the power to the central transfer drive shaft provided in.

  In Claim 2, the said transmission case is arrange | positioned along the vertical transmission case provided with the vertical transmission shaft from right above the horizontal transmission case provided with the horizontal transmission shaft.

  According to a third aspect of the present invention, the transmission case is provided in a horizontal transmission case integrally connected to the tip of the vertical transmission case, and a central conveyance drive case is disposed behind the horizontal transmission case of the transmission case.

  In Claim 4, the central stock transport apparatus which latches and conveys the head part of the harvested cereal rice bran is provided above the central stock merge transport chain, and the driving wheel of the central stock transport apparatus is connected to the central stock merge transport chain. This is configured so as to be driven and rotated integrally with a driven wheel that winds and supports the conveying terminal portion.

  As effects of the present invention, the following effects can be obtained.

  In claim 1, the left and right and center stock former confluence conveyance chains that sandwich and convey each of the left and right and central harvested rice straw stock bases, and the conveyance start end of the left and right and center stock former confluence conveyance chains In a combine having a cutting part with left and right and center cutting wheels that rake the left and right and center cutting cereal stalk bases into the middle, the central stock merging from the cutting input shaft via the vertical and horizontal transmission axes It is configured to transmit power to the central conveyance drive shaft that drives the conveyance chain, and a transmission case is provided on the non-conveying action side of the central share merging conveyance chain between the left share merging conveyance chain and the central share merging conveyance chain. Provide a central conveyance drive case that transmits power from the transmission case to the front and rear intermediate part of the non-conveying action side instead of the conveyance terminal end of the central stock merger conveyance chain. Provided in the drive case Since the power is transmitted to the central conveyance drive shaft, the central conveyance drive case is separated from the conveyance passage of the harvested cereal culm root, and is also launched at a position away from the merging part of the cereal culm. Therefore, it is possible to prevent the catch of the harvested grain culm stock in the middle of conveyance and the accumulation of grass, mud, etc., so that the cereal can be transported smoothly. Moreover, the central stock merger transport chain can be supported not only at the transport start end and transport end by the transmission case and the central transport drive case at the intermediate part on the non-transport side, The strength of the structure can be increased.

  In Claim 2, since the said transmission case was arrange | positioned along the vertical transmission case provided with the vertical transmission shaft from right above the horizontal transmission case provided with the horizontal transmission shaft, It is possible to prevent the transportation failure of the original part.

  In claim 3, since the transmission case is provided in a horizontal transmission case integrally connected to the tip of the vertical transmission case, and a central conveyance drive case is disposed behind the horizontal transmission case of the transmission case, It is effective in preventing catching of the harvested cereal stock and the accumulation of grass, mud, etc., and the transmission case does not hinder the transportation of the harvested cereal stock by the left stocked conveyance chain Such positioning of the front and rear positions and the left and right positions of the central conveyance drive case and the setting of the transmission direction by the transmission case can be easily performed.

  In Claim 4, the central stock transport apparatus which latches and conveys the head part of the harvested cereal rice bran is provided above the central stock merge transport chain, and the driving wheel of the central stock transport apparatus is connected to the central stock merge transport chain. Because it is configured to be driven and rotated integrally with a driven wheel that supports and winds the conveying terminal end, the central tip conveying device is driven in the same direction as the central stock merged conveying chain, and the conveying action side is set to the tension side. Thus, the tip of the harvested cereal can be smoothly transported without impairing the transport force of the central tip transport device. Moreover, the attaching / detaching operation of the central tip conveying device is simplified, and the maintenance can be easily performed.

  Next, embodiments of the invention will be described.

  1 is an overall side view of the combine, FIG. 2 is an overall plan view of the combine, FIG. 3 is a side view of the cutting unit, FIG. 4 is a plan view of the cutting unit, FIG. Is a drive system diagram of the cutting unit, FIG. 7 is a side view of the central transport drive unit, FIG. 8 is a plan view of the central transport drive unit, FIG. 9 is a plan view of the central stock transport merge chain, and FIG. FIG.

  As shown in FIGS. 1 and 2, in a combine according to an embodiment of the present invention, a crawler type traveling device 2 is provided on the left and right sides of a track frame 1, and a machine base 3 is disposed on the track frame 1. ing. A threshing section 4 is provided on the machine base 3, and the threshing section 4 is provided with a handling cylinder 5, a feed chain 6 disposed on the side of the handling cylinder 5, and the like. A six-cut mowing unit 7 is provided in front of the threshing unit 4, and a rejection processing unit 8 is provided in the rear. The waste disposal unit 8 is provided with a waste chain 9, which is disposed so that the start end of the waste chain 9 faces the end of the feed chain 6.

  Moreover, the grain tank 10 which carries in the grain from the said threshing part 4 via the whipping cylinder 11 is provided in the side of the threshing part 4, and the grain in the grain tank 10 is behind and above the said grain tank 10. A discharge auger 12 is provided for discharging the gas to the outside of the machine. A driving cabin 13 is provided in front of the grain tank 10, a driving operation unit 14 such as a steering handle and a driver seat 15 are provided in the driving cabin 13, and an engine 16 is provided below the driving cabin 13. Thus, the combine is configured to continuously cut the cereals with the reaping unit 7 and thresh with the threshing unit 4 while running and moving in the field by driving the engine 16.

  As shown in FIGS. 3 and 4, left and right cutting attachment frames 17 are erected on the front side of the threshing portion 4 from the front end of the machine base 3, and a split pipe joint 18 is provided above each cutting attachment frame 17. Yes. Further, a cutting input case 20 is provided in the cutting unit 7, and a cutting input shaft 19 that transmits power from the engine 16 is inserted into the cutting input case 20. The cutting input case 20 is rotatably and detachably held at the upper ends of the left and right cutting mounting frames 17 via the split pipe joints 18 at both ends thereof, and immediately before the threshing portion 4 in the horizontal direction of the machine body. Horizontally supported horizontally.

  A longitudinal transmission case 21 is integrally extended from the intermediate portion of the cutting input case 20 toward the front obliquely downward direction, and a lateral transmission case 22 is integrally connected to the tip of the longitudinal transmission case 21 at the intermediate portion in the lateral direction of the body. Horizontally supported horizontally. The horizontal transmission case 22 is integrally connected to the horizontal transmission case 22 by a horizontal connection frame 23 at the rear, and is integrally connected in parallel toward the front of the machine body from the horizontal transmission case 22. ing.

  Thus, the cutting input case 20, the vertical transmission case 21, the horizontal transmission case 22, and the cutting frame 24 are integrated into a main frame of the cutting unit 7, and the configuration of the cutting unit 7 to be described later on the main frame. The cutting parts 7 are configured by assembling elements. The cutting unit 7 is configured to move up and down about the cutting input case 20 by expansion and contraction of a hydraulic cylinder 25 stretched between the machine base 3 and the vertical transmission case 21.

  The 6-cut mowing unit 7 includes a pre-treatment mechanism, a scraping mechanism, a mowing mechanism, and a culm transporting mechanism including a cereal stock former transporting mechanism and a corn spear tip transporting mechanism. The pre-processing mechanism erects the seven slaughter boards 27 for separating the cereals to be harvested and the unsheared sorghum and separating each stalk of the reaper to be harvested, and the uncut cereals after weeding. It comprises six pulling cases 29 having six pulling tines 28.

  The rake mechanism is a pair of right rakes that are paired on the right and left sides that rake the stock base part of the grain ridge 26R for the two right wings after being introduced from between the two right erection cases 29 into one bundle. A right star wheel 30R that is a ring, a right scraping belt 31R that is a pair of right and left protrusions, and a left side two-row cereal 26L that is introduced from between the two left side raising cases 29 The left star wheel 30L, which is a pair of left and right left wheels, and a pair of left and right left belts 31L, which is a pair of left protrusions, A central star wheel which is a pair of left and right central stirring wheels that scrape and scrape the stock base part of the grain cocoon 26C for the middle two strips after being introduced from between the two pulling cases 29 into one bundle. 30C and a pair of left and right central scraping belt 31C which is a pair of belts with a central protrusion. It is.

  The mowing mechanism is composed of a clipper-shaped mowing blade 32 that simultaneously cuts six stocks of cereal grains when scraped.

  Among the cereal transport mechanisms, the cereal stock transport mechanism is diagonally left after the stock portion of the right-hand two-row harvested cereal slag 26R that has been scraped by a pair of the right star wheel 30R and the right rake belt 31R. A right stock former converging and conveying chain 33R that holds and conveys upward, and a pair of left star wheel 30L and left pair of left rake belts 31L, and the stock base part of the left side of the harvested cedar 26L is obliquely upward Left stock former confluence conveyance chain 33L to be nipped and conveyed to the conveyance end portion of the right stock former confluence conveyance chain 33R, a pair of right star wheel 30R and a right take-up belt 31R, and a pair of left star foil 30L And a pair of central star wheels 30C disposed between the left rake belt 31L and the central two portions of the cut grain halves 26C raked by the central rake belt 31C, Former merge transport chain 33L / 33 Central stock merge transport that is sandwiched and transported to the upper part after the right slant and is merged before the merge part with the stock base part of the two left-handed reaper 26L for the right stock former merge transport chain 33R The chain 33C and the stock ends of the six harvested cereal grains 26L, 26R, and 26C joined by the right and left and center stock former confluence transport chains 33R, 33L, and 33C are transferred to the right end stock join transport chain 33R. From the stock source transport chain 34, which is a vertical transport chain that is handed over from the left obliquely and transferred to the beginning of transport of the feed chain 6 of the threshing unit 4, and from the transport end portion of the stock source transport chain 34 The feed chain 6 is composed of auxiliary stock source transport chains 35 and 36 for transporting and inheriting the stock base portions of the six reaped grain pods 26L, 26R, and 26C in an appropriate posture at the transport start end portion of the feed chain 6.

  On the other hand, the grain tip transport mechanism includes a right tip transport device 37R that latches and transports the tip of the right-hand two-line harvested grain pod 26R that sandwiches and transports the stock base by the right stock merge transport chain 33R; Left head transfer device 37L that latches and transports the tip of the left-hand two-line harvested grain pod 26L that sandwiches and transports the stock base by the left stock confluence transport chain 33L, and the central stock former confluence transport chain 33C. The stock head part is sandwiched between the stock tip transport device 37C that latches and transports the head part of the cut cereal grains 26C for the two central strips that are transporting the stock, and the stock source transport chain 34 and the auxiliary stock source transport chains 35 and 36. A rear-tip transport device 38 that latches and transports the tips of the six chopped grain pods 26L, 26R, and 26C to be transported, and two right-hand portions after raising that are introduced from between the two right-hand raising cases 29 The tip of the cereal bowl 26R Further after the transfer start end of the right tip transfer device 37R, the upper right tip transfer device 39R that is locked and transferred on the opposite side of the right tip transfer device 37R, and the after-raising introduced from between the two raising cases 29 on the left side. The upper left tip conveying device 39L that locks and conveys the tips of the left two cereal grains 26L on the opposite side of the left tip conveying device 37L above the conveying start end of the left tip conveying device 37L, The tip of the cereal cocoon 26C for the middle two strips introduced from between the pulling cases 29 is locked and transported on the opposite side of the central tip transport device 37C, further above the transport start end of the central tip transport device 37C. And a central upper tip conveying device 39C.

  As shown in FIG. 5, the left and right star wheels 30L, 30R, and 30C in the left and right and center groups are integrally attached to the lower ends of the left and right rotating shafts 40a and 40b, which are two parallel axes, respectively. The left and right star wheels 30L, 30R, and 30C are meshed with each other so as to be rotatable. In addition, the conveying terminal portions of the left and right scrambling belts 31L, 31R, and 31C in the left and right and center groups are wound and supported by a large-diameter pulley 41 that is integrally attached to the upper ends of the left and right rotating shafts 40a and 40b. The conveyance start end portion is wound and supported by a small-diameter pulley 42 that is pivotally supported in front of the large-diameter pulley 41, and the left and right scratching belts 31L, 31R, and 31C of the same set are opened widely toward the front. Is stretched.

  Then, the power is transmitted to one of the left and right rotating shafts 40a and 40b and the rotating shaft 40a or 40b is driven to rotate so that the star wheel attached to the rotating shaft 40a or 40b. 30L / 30R / 30C and the drive belt 31L / 31R / 31C are driven to rotate, and the star wheel 30L / 30R / 30C and the drive belt 31L / 31R / 31C attached to the other rotary shaft 40b or 40a are driven to rotate. The left and right star foils 30L, 30R, and 30C and the scraping belts 31L, 31R, and 31C and the right star wheels 30L, 30R, and 30C and the scraping belts 31L, 31R, and 31C in the same set are rotated in the opposite directions, The cereals 26L, 26R, and 26C are configured to be scraped.

  Also, the driven sprocket 43R is engaged with an intermediate portion of the right rotating shaft 40b to which the right star wheel 30R and the right take-up belt 31R are attached, out of the pair of right star wheel 30R and the right take-up belt 31R. The transfer start end portion of the right stock former confluence transfer chain 33R is wound and supported on the driven sprocket 43R. The right stock merging / conveying chain 33R is composed of a pair of right and left star wheels 30R and 31R, and a right transmission wheel 21 and a horizontal transmission case 22 between the right star wheel 30R and the right belt 30R. Is extended to a position substantially above the connecting portion.

  Of the pair of left and right star wheels 30L and 31L, a driven sprocket 43L is supported on an intermediate portion of the left rotating shaft 40a to which the left star wheel 30L and the left stirring belt 31L are attached. And the conveyance start end part of the left stock former confluence conveyance chain 33L is wound and supported by the driven sprocket 43L. The left stock former merging / conveying chain 33L includes a pair of left and right star wheels 30L and 31L, and a pair of left and right star wheels 30L and 31L. Is stretched up to just before the conveyance end portion of the right stock former confluence conveyance chain 33R at a position substantially above the connection portion.

  Of the pair of left and right central star wheels 30C and 31C, the driven sprocket 43C is supported on the intermediate portion of the left rotating shaft 40a to which the left star wheel 30C and the left scraping belt 31C are attached. Then, the conveyance start end portion of the central stock merger conveyance chain 33C is wound and supported on the driven sprocket 43C. The central stock merging / conveying chain 33C includes a pair of left and right star wheels 30C and 31C of the pair of left and right star wheels 30C and 31C. At the upper end of the connecting portion to the left end of the left stock former confluence conveyance chain 33L before the joining portion of the right stock former confluence conveyance chain 33R with the stock base portion of the left two reaped harvested rice cake L It is stretched until just before.

  Thus, the left and right and central star wheels 30L, 30R, and 30C and the take-up belts 31L, 31R, and 31C are configured to rotate by the rotation of the left and right and center stock merge transport chains 33L, 33R, and 33C. The central star wheel 30C and the take-up belt 31C are arranged in a state shifted to a position one step higher than the left and right star wheels 30L and 30R and the take-up belts 31L and 31R. It is configured not to interfere with 30R and the take-in belts 31L and 31R.

  As shown in FIG. 6, the vertical transmission shaft 44 is inserted into the vertical transmission case 21, and the horizontal transmission shaft 45 is inserted into the horizontal transmission case 22. The lower end of the shaft 44 is interlocked and connected via a bevel gear. Then, the upper end of the vertical transmission shaft 44 is interlocked and connected to the cutting input shaft 19 via a bevel gear, and power is transmitted from the vertical transmission shaft 44 and the horizontal transmission shaft 45 to the driving components among the components of the cutting unit 7. It is configured to be removed.

  From the left end portion of the horizontal transmission case 22, a longitudinal vertical transmission case 46 is erected in a forward leaning posture toward the upper position of the pulling case 29 in a side view, and rightward from the upper end portion of the vertical transmission case 46 A pulling lateral transmission case 47 extends horizontally, and a pulling drive case 48 extends from the pulling lateral transmission case 47 downward for each pulling case 29. The lower part of each pulling drive case 48 is arranged on the upper back side of each pulling case 29, and a pulling tine drive shaft 49 projects from the lower end of each pulling drive case 48 to the inner upper part of each pulling case 29. A protruding tine drive sprocket 50 is provided at the protruding portion of the pulling tine drive shaft 49, and the upper part of the tine chain is wound and supported on the pulling tine drive sprocket 50.

  A pulling vertical transmission shaft 51 is inserted in the pulling vertical transmission case 46, a pulling horizontal transmission shaft 52 is inserted in the pulling horizontal transmission case 47, and the pulling vertical transmission shaft 51 is placed at the left end of the pulling horizontal transmission shaft 52. The upper end is interlocked and connected via a bevel gear. Further, a pulling drive shaft 53 is inserted into the pulling drive case 48, the upper ends of the pulling drive shaft 53 are linked to the pulling lateral transmission shaft 52 via bevel gears, and the lower part is connected to the pulling tine drive shaft 49 via the bevel gears. Linked together. The lower end of the pulling vertical transmission shaft 51 is connected to the left end of the horizontal transmission shaft 45 via a bevel gear so that power is transmitted from the horizontal transmission shaft 45 to the pulling tine drive sprocket 50 of each pulling case 29. The pulling tine 28 constructed and attached to the tine chain can be driven.

  A pulling transmission case 55 having a pulling transmission mechanism 54 is provided in the upper part of the pulling vertical transmission case 46, and the pulling transmission mechanism 54 is incorporated in the middle of the pulling vertical transmission shaft 51. The pulling tine 28 of each pulling case 29 is provided. The drive speed can be changed to high speed, medium speed, and low speed.

  Further, the cutting blade 32 is configured to divide the movable blade into two at the central portion of the cutting width, reciprocate the left and right movable blades in opposite directions, and cancel vibrations. The crankshaft 56a, which is the left cutting blade drive shaft, is raised upward from the left end portion of the horizontal transmission shaft 45 through a bevel gear from the inner side, and is raised upward from the right end portion of the horizontal transmission shaft 45 through the bevel gear. Thus, the left and right crankshafts 56 a and 56 b protrude upward from the lateral transmission case 22. In this way, power is transmitted from the lateral transmission shaft 45 to the left and right movable blades, so that the cutting blade 32 can be driven.

  A rear conveyance drive case 57 extends leftward from the upper part of the vertical transmission case 21, and a rear conveyance drive shaft 58 is inserted into the rear conveyance drive case 57. The lower end of the drive sprocket shaft 61 is linked to the left end of the rear transfer drive shaft 58, and the drive sprocket 59 of the auxiliary stock former transfer chain 36 and the tine of the rear tip transfer device 38 are attached to the drive sprocket shaft 61 at equal intervals. A rear-tip transfer device drive sprocket 60 that winds and supports the transfer end portion of the chain is provided. The right end of the rear transfer drive shaft 58 is interlocked and connected to the upper portion of the vertical transmission shaft 44 via a bevel gear, and the drive sprocket 59 of the auxiliary stock former transfer chain 36 and the rear tip transfer device from the upper portion of the vertical transmission shaft 44. Power is transmitted to the drive sprocket 60, and the auxiliary stock former transport chain 36 and the rear tip transport apparatus 38 can be driven.

  Further, a drive sprocket 63 of the other auxiliary stock source transport chain 35 is provided on the driven sprocket shaft 62 of one auxiliary stock source transport chain 36. Thus, power is transmitted to the drive sprocket 63 from the upper part of the vertical transmission shaft 44, so that the auxiliary stock former transport chain 35 can be driven.

  In addition, a right conveyance drive case 64 is erected from an intermediate portion of the vertical transmission case 21 at a right angle with respect to a rotation plane of the right stock merging conveyance chain 33R, and obliquely upward to the left from the lower portion of the right conveyance drive case 64. A vertical conveyance drive case 65 is extended toward the surface. A right transport drive shaft 67 is inserted into the right transport drive case 64, a vertical transport drive shaft 68 is inserted into the vertical transport drive case 65, and the lower end of the vertical transport drive shaft 68 is connected to the right transport drive shaft 67. It is linked to the lower part via a bevel gear.

  A right stock merging / conveying chain drive sprocket 69 is provided on the right transport driving shaft 67, and the right stock merging / conveying chain drive sprocket 69 is wound around and supported by the right stock merging / conveying chain drive sprocket 69. In addition, the lower end of the vertical conveyance drive shaft 71 is linked to the vertical conveyance transmission shaft 68 via a bevel gear. A stock transport chain drive sprocket 72 is provided on the vertical transport drive shaft 71, and the transport start end of the stock transport chain 34 is wound around the stock transport chain drive sprocket 72.

  The lower end of the right transport drive shaft 67 is linked to the intermediate portion of the vertical transmission shaft 44 via a bevel gear so that the right stock confluence transport chain drive sprocket 69 and the stock transport chain are connected from the intermediate portion of the vertical transmission shaft 44. Power is transmitted to the drive sprocket 72, and the right stock merge transport chain 33R and the stock transport chain 34 can be driven.

  Further, a left conveyance drive case 73 extends from the middle part of the pulling vertical transmission case 46 in the right direction and parallel to the rotation plane of the left stock former merge conveyance chain 33L. A left transport drive shaft 74 is inserted into the left transport drive case 73, and the right end of the left transport drive shaft 74 is linked and connected to an intermediate portion of the drive sprocket shaft 77 via a bevel gear.

  The drive sprocket shaft 77 is provided with a left stock merging / conveying chain drive sprocket 75, and the left stock merging / conveying chain drive sprocket 75 is wound around and supported by the intermediate portion of the left stock merging / conveying chain 33L. . Further, a left tip transfer device drive sprocket 76 is provided on the drive sprocket shaft 77, and a non-transfer action side intermediate portion of a chain for attaching the tine of the left tip transfer device 37L at equal intervals to the left tip transfer device drive sprocket 76 is wound. Times supported.

  The left end of the left transport drive shaft 74 is linked to the intermediate portion of the pulling vertical transmission shaft 51 via a bevel gear, and the left stock merging transport chain drive is driven from the left end of the horizontal transmission shaft 45 via the pulling vertical transmission shaft 51. Power is transmitted to the sprocket 75 and the left tip transfer device drive sprocket 76 so that the left stock former confluence transfer chain 33L and the left tip transfer device 37L can be driven.

  Further, power is transmitted from the intermediate portion of the horizontal transmission shaft 45 to the central stock unit confluence transport chain drive sprocket 78 that winds and supports the transport end portion of the central stock unit confluence transport chain 33C by a drive structure described later. Thus, the central stock former merging and conveying chain 33C can be driven.

  In this way, the right stock former confluence transport chain 33R and right tip transport device 37R, the left stock former confluence transport chain 33L and the left tip transport device 37L, the central stock former confluence transport chain 33C and the central tip transport device 37C, Each power is transmitted and driven independently, and the central stock former confluence transport chain 33C with respect to the right stock former confluence transport chain 33R and the right stock transport device 37R, the left stock former confluence transport chain 33L and the left stock tip transport device 37L. And the central tip conveying device 37C are independently driven, and the right star wheel 30R and the right take-up belt 31R, the left star wheel 30L and the left take-up belt 31L, and the central star wheel 30C and the center take-up belt 31C are independently driven. The center by the star foil combination which mutually meshes the star foil 30L, 30R, 30C of right and left and the center Prevention of troubles such as breakage of each star wheel 30L / 30R / 30C due to excessive load caused by omission of drive structure of the terfoil 30C, the central drive belt 31C, the central stock merge transport chain 33C and the central tip transport device 37C Is planned.

  As shown in FIGS. 7, 8, and 9, the central stock merge transfer chain 33 </ b> C from the upper end of the lateral middle portion of the horizontal transmission case 22 (the left side of the connection portion of the horizontal transmission case 22 to the vertical transmission case 21). A transmission case 80 extends rearward toward the upper end of the vertical transmission case 21 in parallel with the rotation plane of the central stock merger transfer chain 33C. That is, in the plan view shown in FIG. 8, the transmission case 80 is disposed along the vertical transmission case 21 from directly above the horizontal transmission case 22, and is located at the lower position directly above the horizontal transmission case 22 and at the rear portion of the central scraping belt 31 </ b> C. The left stock former confluence transport chain 33L and the central stock confluence transport chain 33C are disposed on the non-conveying action side of the central stock confluence transport chain 33C. In this way, the transmission case 80 does not interfere with the transportation of the cereal by the central stock merger transport chain 33C. The transmission case 80 is opened a predetermined distance from the left stock former merging and transporting chain 33L, and does not interfere with the transport of the cereal. And the upper end of the transmission shaft 82 is inserted inside the front part of this transmission case 80, and the lower end of the center conveyance drive shaft 83 is inserted inside the rear part.

  An output-side sprocket 84 is provided at the upper end of the transmission shaft 82 inserted inside the front part of the transmission case 80, and an input-side sprocket 85 is provided at the lower end of the central transport drive shaft 83 inserted inside the rear part of the transmission case 80. Is provided. A transmission chain 86 is stretched between the upper end of the transmission shaft 82 and the lower end of the central conveyance drive shaft 83 via the sprockets 84 and 85, and the transmission shaft 82 and the central conveyance drive shaft 83 are connected to the transmission chain 86. It is linked and connected through.

  Also, a pipe-shaped central transport driving case 81 is erected integrally with the central transport drive case 81 from the rear of the transmission case 80 at a right angle to the rotation plane of the central stock merge transport chain 33C. 83 is interpolated. A central stock merging / conveying chain drive sprocket 78 is provided at the upper end of the central transport driving shaft 83, and an intermediate portion of the central stock merging / conveying chain drive sprocket 78 is wound around the non-conveying action side intermediate portion of the central stock merging / conveying chain 33 </ b> C. Times supported.

  Further, the transmission shaft 82 projects downward from the front portion of the transmission case 80 to the intermediate portion of the lateral transmission case 22, and the lower end of the transmission shaft 82 and the intermediate portion of the lateral transmission shaft 45 are linked via a bevel gear. It is connected. In this way, a crank-shaped transmission path is formed in a side view for transmitting power from the lateral transmission shaft 45 to the central stock merging and conveying chain drive sprocket 78, and the central stock merging and conveying chain drive sprocket is formed from an intermediate portion of the lateral transmission shaft 45. Power is transmitted to 78, and the central stock merger transport chain 33C can be driven such that its transport side is the tension side.

  In addition, the conveyance end portion of the central stock former confluence conveyance chain 33C is not wound and supported by a driving sprocket as in the prior art, but is wound and supported by a driven sprocket 87. Therefore, the central conveyance drive case 81 is not the rear end of the central stock merge transfer chain 33C, but the central stock merge flow chain drive sprocket 78, the driven sprocket, the central star wheel 30C, and the like arranged in front. The load is received at the center portion, and it is possible to support the load more stably than at the rear end. Further, the length of the central conveyance driving case 81 can be shortened, and the rigidity can be increased even if the diameter is the same.

  The driven sprocket 87 is pivotally supported on a bracket 92 attached to the transport frame 91. That is, a pipe-shaped rear conveyance drive case 89 is erected on the bracket 92 at a right angle to the rotation plane of the central tip conveyance device 37C, and a driven sprocket shaft 88 is inserted into the rear conveyance drive case 89, A driven sprocket 87 is provided at the lower end of the driven sprocket shaft 88.

  A drive sprocket 79 of the central tip conveying device 37C is provided at the upper end of the driven sprocket shaft 88 so that it can be driven and rotated integrally with the driven sprocket 87. As shown in FIG. 10, the conveyance end portion of the chain 37Cb in which the tine 37Ca of the central tip conveyance device 37C is attached to the drive sprocket 79 at equal intervals is wound and supported, and is provided near the upper portion of the central star wheel 30C. The start end of the chain 37Cb is wound and supported on the driven sprocket 90. Thus, power is transmitted to the drive sprocket 79 by driving the central stock merging and transporting chain 33C, and the central tip transporting device 37C is transported in the same manner as the central stock merging and transporting chain 33C. It can be driven so that the working side becomes the tension side.

  Further, an arm 93 is rotatably supported on the bracket 92 that supports the driven sprocket shaft 88 of the center lower former merging / conveying chain 33C, from the conveying terminal end side to the conveying starting end side of the central stock merging / conveying chain 33C. The front is extended in parallel with the rotation plane of the central stock merge transport chain 33C. A tension roller 95 is provided on a rotating shaft 94 that is rotatably supported at the tip of the arm 93. The tension roller 95 is disposed between the central stock merger transport chain drive sprocket 78 and a driven sprocket 43C that winds and supports the transport start end of the central stock merger transport chain 33C. In this way, the central stock merger transport chain drive sprocket 78 is disposed at a substantially central part in the front and rear of the central stock merger transport chain 33C, and therefore is disposed between the rear end and the front end of the central stock merger transport chain 33C. In addition, the distance at which the central stock former merging / conveying chain 33C is wound around the tension roller 95 is long (the angle is large), so that it is difficult to come off and the tension can be reliably established.

  Further, a spring 96 is interposed between the front portion of the arm 93 and the bracket 92, and the arm 96 is urged by the spring 96 so as to rotate toward the transfer action side of the central stock merge transfer chain 33C. ing. Thus, the tension roller 95 is configured to come into contact with the central stock merging / conveying chain 33C between the central stock merging / conveying chain drive sprocket 78 and the driven sprocket 43C so that the central stock merging / conveying chain 33C is tensioned. ing.

  In this way, the central stock merger transport chain 33C has a pair of central portions disposed between the pair of right star wheels 30R and the right take-up belt 31R and the pair of left star wheels 30L and the left take-up belt 31L. The stock base part of the harvested cereal grain 26C for the two central strips, which are raked by the star wheel 30C and the central rake belt 31C, is positioned between the left and right tie stock transfer chains 33L and 33R, and on the upper right after the right diagonal. It sandwiches and conveys, and it is comprised so that it may join before the junction part with the stock base part of the cut grain cereal 26L for the left two lines of the right stock former confluence conveyance chain 33R.

  In other words, the stock base part of the right two-line harvested grain pod 26R sandwiched and transported by the right stock former confluence transport chain 33R and the central two strips of the harvested grain shear 26C sandwiched and transported by the central stock former confluence transport chain 33C. In the junction part X1 with the stock base part, it is sandwiched and transported by the central stock joint confluence transport chain 33C with respect to the stock part of the two right-side harvested cereal grains 26R that is sandwiched and transported by the right stock confluence transport chain 33R. The stock base part of the cut grain cereal 26C for the central two strips is configured to join from the transport end part of the central stock base confluence transport chain 33C.

  As described above, the left and right and center stock former merging and conveying chains 33L, 33R, and 33C that sandwich and convey each of the left and right and middle harvested cereal mash stock base portions 26L, 26R, and 26C, Star wheels 30L, 30R, and 30C that serve as left and right and center stirring wheels that scrape the left and right and center harvested cereal grains 26L, 26R, and 26C into the transport start end of the stock merge transport chain 33L, 33R, and 33C In the combine having the reaping part 7 equipped with the motive power, the motive power is transmitted from the reaping input shaft 19 to the central conveyance driving shaft 83 that drives the central stock merging and conveying chain 33C via the vertical transmission shaft 44 and the horizontal transmission shaft 45. , A transmission case 80 is provided on the non-conveying action side of the central stock merger transport chain 33C between the left stock former merger transport chain 33L and the central stock merger transport chain 33C. A central conveyance drive case 81 is provided to transmit power from the center 80 to the front and rear intermediate portions of the non-carrying action side instead of the conveyance termination portion of the central stock merge conveyance chain 33C. Since the power is transmitted to the central conveyance drive shaft 83 provided in 81, the central conveyance drive case 81 is separated from the conveyance passage of the harvested cereal grains 26L, 26R and 26C, and from the merging part of the cereal grains Will be able to be launched at a remote location to prevent the catch of the harvested cereals 26L, 26R and 26C from being transported and the accumulation of cocoon and mud, etc., and transport the cereals smoothly. Can do. In addition, the central stock merger / conveyor chain 33C can be supported by the transmission case 80 and the central transport drive case 81 not only at the transport start end and transport end but also at the intermediate part on the non-transport working side. The strength of the support structure of the chain 33C can be increased.

  Further, since the transmission case 80 is arranged along the vertical transmission case 21 with the vertical transmission shaft 45 from directly above the horizontal transmission case 22 with the horizontal transmission shaft 45, the harvested grain 26L by the left stock former conveying chain 33L.・ It is possible to prevent the 26R / 26C stock base from becoming a transport obstacle.

  Further, the transmission case 80 is provided in the horizontal transmission case 22 integrally connected to the tip of the vertical transmission case 21, and the central conveyance drive case 81 is disposed behind the horizontal transmission case 22 of the transmission case 80. Effective in preventing catching of the harvested cereal rice cake 26L / 26R / 26C on the way and accumulation of grass, mud, etc., and the transmission case 80 is a harvested cereal rice cake produced by the left stocker confluence conveying chain. It is possible to easily set the front and rear positions and the left and right positions of the central transport drive case 81 and set the transmission direction by the transmission case 80 so as not to obstruct the transport of the 26L / 26R / 26C stock base.

  Further, a central tip transport device 37C for locking and transporting the tip portion of the harvested grain pod 26C is provided above the central stock former confluence transport chain 33C, and a drive sprocket 79 serving as a drive wheel of the central tip transport device is installed in the central stock. Since the driven sprocket 87, which is a driven wheel that winds and supports the conveying end portion of the former confluence conveying chain 33C, is configured to be driven and rotated integrally, the central tip conveying device 37C is moved in the same direction as the central stock former converging conveying chain 33C. By driving, the conveying action side can be set as the tension side, and the tip portion of the cut grain pod 26C can be smoothly conveyed without impairing the conveying force of the central tip conveying device 37C. Moreover, the attaching / detaching operation of the central tip conveying device is simplified, and the maintenance can be easily performed.

The whole side view of a combine. The whole top view of a combine. The side view of a cutting part. The top view of a cutting part. The top view of stock former confluence conveyance chain. The drive system figure of a cutting part. The side view of a center conveyance drive part. The top view of a center conveyance drive part. The top view of a central stock former conveyance confluence chain. The top view of a center tip conveyance apparatus.

Explanation of symbols

21 Vertical transmission case 22 Horizontal transmission case 30L / 30R / 30C Stirring wheel (star wheel)
33L / 33R / 33C Stock former confluence transport chain 37L / 37R / 37C Tip transport device 44 Vertical transmission shaft 45 Horizontal transmission shaft 79 Drive wheel (drive sprocket)
80 Transmission case 81 Central transport drive case 83 Central transport drive shaft 87 Driven wheel (driven sprocket)

Claims (4)

  Left, right, and center slaughter cereal stocks are clamped and transferred to the left, right, and center stock source merge and transfer chains, and the left and right and center stock cuts are fed to the transfer start ends of the left and right and center stock source merge and transfer chains. In the combine which has a cutting part provided with the right and left and the central picking wheel which rakes the cereal stock base part, the center which drives the central stock base confluence conveyance chain from the cutting input shaft via the vertical transmission shaft and the horizontal transmission shaft A power transmission case is provided on the non-conveying action side of the central stock merging and transporting chain between the left stock merging and transporting chain and the central stock merging and transporting chain. A central transport drive case that transmits power toward the front and rear intermediate portions of the non-transport action side is provided instead of the transport end portion of the stock source confluence transport chain in the center, and the center provided in the central transport drive case from the lateral transmission shaft On the transport drive shaft Combine, characterized by being configured to transmit the configuration to the power to transmit force.   The combine according to claim 1, wherein the transmission case is disposed along a vertical transmission case provided with a vertical transmission shaft from directly above a horizontal transmission case provided with a horizontal transmission shaft.   3. The combine according to claim 2, wherein the transmission case is provided in a horizontal transmission case integrally connected to a front end of the vertical transmission case, and a central conveyance drive case is disposed behind the horizontal transmission case of the transmission case. . A central tip transport device that locks and transports the tip of the harvested cereal cocoon is provided above the central stock merge transport chain, and the driving wheel of the central stock transport device is wound around the transport end portion of the central stock merge transport chain. The combine according to any one of claims 1 to 3, wherein the combine is configured so as to be driven and rotated integrally with a driven wheel that supports the rotation.

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