JP4149988B2 - Combine - Google Patents

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, the harvesting part of the combine is supported in the left-right direction of the machine body just before the threshing part by a bearing attached to the front end of the machine base, with a harvesting input case for interpolating a harvesting input shaft to which power from the engine is transmitted, A longitudinal transmission case that interpolates a longitudinal transmission shaft that is linked to the cutting input shaft is integrally extended from an intermediate portion of the cutting input case obliquely downward to the front, and is laterally coupled to the vertical transmission shaft. The intermediate part of the horizontal transmission case that interpolates the 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 part is integrally connected by the horizontal connection frame. The rear ends of the corresponding plural cutting frames are integrally connected to the lateral transmission case, and the cutting frame is integrally extended from the lateral transmission case toward the front of the machine body.

  Further, a weed lifting device, a scraping device, and a cutting blade device corresponding to the number of cutting strips are attached to the cutting frame, and the uncut rice mash in the field is scraped while being lifted after weeding, The cereal stock is cut and the uncut cereals in the field are cut.

Further, the harvested cereals are nipped and conveyed at the base part by the chain, and the tip part is also conveyed by locking by the tine and conveyed to the threshing part. The chain for the harvesting part of the harvester is a right stock former merging and transporting chain that clamps and conveys the right side of the two crops of the right side of the harvested cereal stock with a pair of right and left rake wheels. Then, the left two reaped harvested rice bran roots that have been scraped by the left and right pair of left and right wheels are clamped and transported upwards after the right angle, and merged with the transport end of the right stock former merge transport chain Harvested cereals for one central strip that have been squeezed by one central rake wheel, which is arranged between the left stock former conveying chain, a pair of right rake wheel and a pair of left rake wheel The root part (in the case of Article 5) or the pair of left and right pairs of the central rake rings and the central two parts of the harvested cereal potato stock (in the case of Article 6) The middle stock former confluence conveyance chain which is sandwiched between the right stock former confluence conveyance chain and located before the merge portion with the left harvested grain straw stock base is joined to The root part of the harvested cereal for 6 or 6 parts is inherited from the conveying end of the right stock former converging conveyance chain on the left side of the longitudinal transmission case, and is inherited to the conveying start end of the feed chain stretched on the left side of the threshing part A stock transport chain (vertical transport chain) for transport was provided (see, for example, Patent Document 1).
JP-A-1-171408

  A drive wheel that winds and supports the conveyance end portion of the central stock former confluence conveyance chain among the left and right and central stock former confluence conveyance chains that sandwich and convey each of the left and right and middle harvested grain straw stock formers. In order to transmit the power easily from as close as possible, the central transfer drive case is raised from the vicinity of the connection part of the vertical transmission case with the horizontal transmission case, and the lower end is transmitted vertically by being inserted into this central transfer drive case. Install the drive wheel on the central transport drive shaft to be interlocked with the shaft, or raise the central transport drive case through the vertical transmission case that is shorter forward than the middle part of the horizontal transmission case, and insert it into this central transport drive case. When the drive wheels are mounted on the central transport drive shaft that interlocks the lower end with the horizontal transmission shaft, the central stock confluence transport chain is located between the left and right stock confluence transport chains, and the left and right stock confluence transport chains Because it is sandwiched between the transporting action side, the central transport drive case rises at a position close to the transport path of the harvested cereal slaughter base and close to the junction,・ The problem is that mud and other sediments are easily deposited.

Therefore, in the present invention, in a combine that includes an erecting case having an erecting tine that erects an uncut cereal meal after weeding and an elevating drive case that drives the erecting case, the tip is conveyed to the elevating drive case. An upper tip transport drive case having an upper tip transport tine is detachably attached, and the pull-up drive case has an input end of the upper tip transport drive case at a lower end surface on an extension line of the pull-up drive shaft inserted thereinto. A hole for connecting the part is formed, and an input end of the upper tip conveyance drive case or a lid for closing the hole is integrally attached to the outer surface of the pulling drive case around the hole with a set bolt. A flange for coupling is formed, and the pulling drive shaft is formed with a shaft end portion extending to a position near the hole, while the upper tip conveying drive case is internally provided. A shaft coupling with the shaft end of the pulling drive shaft is fixed to the input end of the force shaft, and the end of this shaft coupling is protruded from the output end of the upper tip transport driving case. flange is formed corresponding to the flange of the causes drive case side to the input end outer surface, the lower end of the cause drive case through the flange and the set bolts, the upper tip conveyance drive case so as to integrally connecting one An upper tip conveyance drive case is connected to the pulling drive case of the section, and a combine is provided in which the lid is attached to the remaining pulling drive case .

In the present invention, an upper tip transport drive case having an upper tip transport tine for transporting the tip is detachably attached to the pull drive case, and the pull drive case is on an extension line of the pull drive shaft inserted therein. A hole for connecting the input end of the upper tip conveyance drive case is formed on the lower end surface, and the input end of the upper tip conveyance drive case or the hole is closed on the outer surface of the pulling drive case around the hole. A flange for integrally connecting the lid body for releasability with a set bolt is formed, and the pulling drive shaft is formed with a shaft end portion extending to a position near the hole, while an upper tip conveyance drive case In the input end of the built-in input shaft, a shaft coupling with the shaft end of the pulling drive shaft is fixed, and the end of this shaft coupling protrudes from the output end of the upper tip conveying drive case, Tip transporter A flange corresponding formed in the flange of the causes drive case side to the input end outer face of the case, the lower end of the cause drive case through the flange and the set bolts, the upper tip conveyance drive case so as to integrally connected The upper tip conveyance drive case is connected to a part of the drive case, and the lid is attached to the other drive case .
Therefore, there is no need to prepare two types of pulling drive cases, one with or without the upper tip conveying tine, the pulling drive case can be unified into one type, and the manufacturing cost can be reduced. It is possible to respond appropriately even if the mounting position and number of upper tip conveying tines differ depending on the difference, and also to appropriately respond to the use / non-use of upper tip conveying tine depending on the type and variety of crops to be cut Become.

  Embodiments of the present invention will be described below in detail with reference to the drawings.

   1 is an overall side view of the combine, and FIG. 2 is an overall plan view of the combine. In FIG. 1, 1 is a track frame on which the left and right traveling crawlers 2 are installed, 3 is a machine base installed on the track frame 1, and 4 is a feed A threshing section that stretches the chain 5 on the left side and incorporates a handling cylinder 6, 7 is a reaping section for cutting 6 that is provided in front of the threshing section 4, and 8 is a slaughtering process part that faces the terminal end of the staking chain 9. Reference numeral 10 denotes a grain tank that carries the grain from the threshing unit 4 through the milling cylinder 11, 12 a discharge auger that discharges the grain in the grain tank 10 to the outside, 13 a driving operation unit 14 such as a steering handle, and the like. A driving cabin 16 provided with a driver's seat 15 is an engine provided below the driving cabin 13, and is configured so as to continuously cut cereals with the cutting unit 7 and thresh with the threshing unit 4 while traveling on the field. .

  As shown in FIGS. 3 and 4, left and right cutting attachment frames 17 are raised from the front end of the machine base 3 to the front side of the threshing portion 4, and a split pipe joint 18 is provided on the upper portion of each cutting attachment frame 17. A cutting input case 20 for interpolating a cutting input shaft 19 for transmitting the power from is provided in the cutting unit 7, and both ends of the cutting input case 20 are freely rotatable on the upper part of the left and right cutting mounting frame 17 via the split pipe joint 18. The cutting input case 20 is horizontally supported horizontally in the left-right direction of the machine body immediately before the threshing portion 4, and is integrally extended downward from the middle portion of the cutting input case 20 to the front oblique direction. The vertical transmission case 21 to be installed, the horizontal transmission case 22 that is integrally connected to the front end of the vertical transmission case 21 and horizontally supported horizontally at the front end of the vertical transmission case 21 at the front end of the vertical transmission case 21, and the rear part is connected laterally Frame 2 The cutting frame 24 is integrally connected to each other by six, and the rear portion of the cutting frame 24 is integrally connected to the lateral transmission case 22 so that the cutting frame 24 is integrated in parallel from the lateral transmission case 22 toward the front of the machine body. The integral cutting input shaft 20, the vertical transmission case 21, the horizontal transmission case 22, and the cutting frame 24 are used as the main frame of the cutting unit 7, and components of the cutting unit 7 described later are assembled to the main frame. The reaping portion 7 is configured, and a hydraulic cylinder 25 is stretched between the machine base 3 and the longitudinal transmission case 21, and the reaping portion 7 is moved up and down by extending and contracting the hydraulic cylinder 25. It is configured as follows.

  The 6-cut mowing section 7 separates the cereals to be harvested and the uncut cereals and separates the cereals to be harvested for every 6 strips, A pretreatment mechanism consisting of six pulling cases 29 having six pulling tines 28 for raising the chopped rice bran, and two pulling grains R on the right after pulling introduced from between the two pulling cases 29 on the right The right star wheel 30R, which is a pair of left and right pairs, and a pair of right and left pairs of right protrusion belts 31R, which is a pair of right protrusions. Left star wheel that is a pair of left and right left-handed wheels that scrape and scrape the stock base part of the left-side 2 grain cereal L introduced from between the two pulling cases 29 30L and a pair of left and right left belt 31L, which is a pair of left projection belts, and a guide between two pulling cases 29 in the center The central star wheel 30C, which is a pair of left and right pairs, and a pair of left and right pairs of the central star wheel 30C and the pair of right and left pairs A pair of right star wheels 30R, a scoring mechanism composed of a central scoring belt 31C, which is a belt with protrusions, a scissor mechanism comprising a clipper-shaped cutting blade 32 that simultaneously cuts six stocks of cereal grains during scoring, and a pair of right star wheels 30R And a right stock former merging and conveying chain 33R that clamps and conveys the stock portion of the two right-handed harvested cereal ridges R that have been scraped by the right take-up belt 31R, and a pair of left star wheels 30L and Left strain that is clamped and transported to the upper end of the right-hand merging / conveying chain 33R by holding and transporting the stock portion of the left-hand two-line harvested grain culm L by the left rake belt 31L to the upper right after obliquely skewing Former merge chain 33L and a set of right star wheel 30R and Retrieval of two central strips that have been scraped by a pair of central star wheel 30C and central scraping belt 31C disposed between the scraping belt 31R, the pair of left star foil 30L, and the left scratching belt 31L The stock base part of the cereal basket C is located between the left and right stock merge transport chains 33L and 33R, and is clamped and transported upward after the right oblique, and the left side of the right stock former merge transport chain 33R is harvested. 33 centrifuging harvested rice cakes L merged by the central stock former confluence conveyance chain 33C to be merged before the confluence section with the stock base portion of L, and left and right stock confluence conveyance chains 33R, 33L, 33C Longitudinal conveyance chain that inherits the stock part of R and C from the conveyance end part of the right stock merging and conveying chain 33R, and sandwiches and conveys it to the upper part after the left slant to the conveyance start end part of the feed chain 5 of the threshing part 4 Stock former transportation chain 34 and stock former transportation chain It consists of auxiliary stock-source transport chains 35 and 36 that transfer and inherit the stock base parts of the six reaped cereal grains L, R, and C from the transport terminal end of the chain 34 to the transport start end of the feed chain 5. A right-hand tip transport tine 37R that locks and transports the head portion of the right-hand two-line harvested rice straw R holding and transporting the stock base portion by the right stock former confluence transport chain 33R, The left head tip tine 37L that latches and transports the tip of the harvested cereal L of the left two strips that are sandwiched and transported by the stock former confluence transport chain 33L, and the central stock former confluence transport chain 33C The stock head part is formed by a central tip transport tine 37C that latches and transports the head part of the harvested cereal mash C for two central strips that sandwich and transport the part, a stock transport chain 34, and auxiliary stock transport chains 35 and 36. 6 chopped grains L, R, The tip of the rear tip of the right side of the cedar R, which is introduced from between the two raising cases 29 on the right side, and the tip of the right side tip of the right tip transporting tine 37R. Grain for the two left-hand ridges after being introduced from between the upper right-hand tip transport tine 39R, which is locked and transported on the opposite side of the right-hand tip transport tine 37R, and the two left-hand pulling cases 29, further above the transport start end. From the space between the two upper raising cases 29 and the upper left tip conveying tine 39L that locks and conveys the tip of the heel L on the opposite side of the left tip conveying tine 37L above the conveying start end of the left tip conveying tine 37L. Central upper tip transport that locks and transports the tip of the grain cereal C for the two middle centimeters to be introduced, further above the transport start end of the central tip transport tine 37C, on the opposite side of the central tip transport tine 37C Tyne 39C Ranaru and a grain 稈搬 feed mechanism consisting of cereal 稈穂 destination transport mechanism.

  Further, 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, 30C of the set are meshed and rotated, and the left and right and left and right set of left and right scraping belts 31L, 31R, 31C have conveyance end portions at the upper ends of the left and right rotary shafts 40a, 40b. When the large diameter pulley 41 that is integrally attached is wound and supported, the conveyance start end portion is wound and supported by the small diameter pulley 42 that is pivotally supported in front of the large diameter pulley 41, and the same set of left and right scratching belts 31L and 31R. , 31C is stretched in the shape of a letter C that widens forward, and power is transmitted to one of the left and right rotary shafts 40a, 40b to drive and rotate, so that the rotary shaft 40a or The star wheels 30L, 30R, 30C attached to 40b and the take-up belts 31L, 31R, 31C are driven to rotate, and the star wheels 30L, 30R, 30C and the take-up belts 31L, 31R, attached to the other rotary shaft 40a or 40b, 31C is driven to rotate, and the left and right star wheels 30L, 30R, and 30C and the stir belts 31L, 31R, and 31C and the right star wheels 30L, 30R, and 30C and the stir belts 31L, 31R, and 31C in the same set are reversed. It is configured to rotate and to take the culm L, R, C.

  Further, among the pair of right star wheel 30R and right take-up belt 31R in a pair of left and right, the right stock former confluence conveyance chain is placed in the middle of the right rotating shaft 40b for attaching the right star wheel 30R and the right take-up belt 31R. The driven sprocket 43R that winds and supports the conveyance start end portion of 33R is supported by an engagement shaft, and of the pair of right star wheel 30R and right take-up belt 31R in a pair of left and right, of the right star wheel 30R and the take-up belt 31R. The right stock former confluence conveyance chain 33R is stretched between the vertical transmission case 21 and the horizontal transmission case 22 to a position substantially above the gap between the left star wheel 30L and the left stirring belt 31L. The left end wheel 30L and the left take-up belt 31L are attached to the intermediate portion of the left rotating shaft 40a, and the driven start end of the left stock former merging and conveying chain 33L is wound and supported. The vertical transmission case 21 and the lateral transmission case 22 are supported between the left star wheel 30L and the left take-up belt 31L of the left star wheel 30L and the left take-up belt 31L as a pair of left and right pairs. The left stock former confluence conveyance chain 33L is stretched just before the conveyance end portion of the left stock former confluence conveyance chain 33L at a position substantially above the connection portion with a pair of left and right central star wheels 30C and a central rake belt. 31C, a driven sprocket 43C for winding and supporting the conveyance start end portion of the central stock merge conveyance chain 33C around the intermediate portion of the left rotation shaft 40a to which the left star wheel 30C and the left take-up belt 31C are attached is an engagement shaft. A pair of left and right star wheels 30C and 31C, of the pair of left and right star wheels 30C and 31C. 21 at the upper position of the connecting portion between the lateral transmission case 22 and the left stock former confluence conveyance chain in front of the junction with the stock base portion of the left-hand two-line harvested rice cake L of the right stock former confluence conveyance chain 33R. The central stock merge transport chain 33C is stretched just before the end of the 33L transport, and the left and right and central star wheels 30L, 30R, 30C and scratches are rotated by the rotation of the left and right and central stock stock merge transport chains 33L, 33R, 33C. The insertion belts 31L, 31R, 31C are configured to rotate.

  The left and right star wheels 30L and 30R and the scraping belts 31L and 31R are supported by shifting the center star wheel 30C and the scraping belt 31C to a position one step higher, and the left and right star wheels 30L and 30R and scratching belts 31L and 31R. The interference belts 31L, 31R are configured to prevent interference between the central star wheel 30C and the scraping belt 31C.

  Then, as shown in FIG. 6, a vertical transmission shaft 44 that interlocks and connects an upper end to the cutting input shaft 19 via a bevel gear is inserted into the vertical transmission case 21, and a lower end of the vertical transmission shaft 44 is connected to the lower end of the vertical transmission shaft 44 via a bevel gear. A horizontal transmission shaft 45 that interlocks and connects the intermediate portion is inserted into the horizontal transmission case 22, and the driving power of the components of the cutting unit 7 is extracted from the vertical transmission shaft 44 and the horizontal transmission shaft 45. From the left end of the transmission case 22, the vertical vertical transmission case 46 is raised in a forward leaning posture toward the upper position of the vertical case 29 in a side view, and the horizontal transmission is started horizontally from the upper end of the vertical transmission case 46. A case 47 is extended, a pulling drive case 48 for each pulling case 29 is extended downward from the pulling lateral transmission case 47, and the lower part of each pulling drive case 48 is exposed to the upper back side of each pulling drive case 48. Not each A pulling tine drive shaft 49 protrudes from the lower end portion of the pulling drive case 48 to the inner upper portion of each pulling case 29, and the upper end of the tine chain for mounting the pulling tine 28 at equal intervals is wound around the protruding end portion. A sprocket 50 is provided, and is inserted into the longitudinal vertical transmission case 46 so that the lower end is interlocked with the left end of the lateral transmission shaft 45 via a bevel gear, and the longitudinal end transmission shaft 51 is inserted into the longitudinal lateral transmission case 47 and the left end is inserted. A pulling lateral transmission shaft 52 linked to the upper end of the pulling vertical transmission shaft 51 via a bevel gear; and an upper end of the pulling vertical transmission shaft 52 linked to the pulling lateral transmission shaft 52 via a bevel gear. The pulling drive shaft 53 that interlocks the lower part with the pulling tine drive shaft 49 via a bevel gear, and the pulling tine drive sprocket of each pulling case 29 from the lateral transmission shaft 45. The transmission 50 is configured to transmit power, and a pulling transmission case 55 having a pulling transmission mechanism 54 is provided above the pulling vertical transmission case 46, and the pulling transmission mechanism 54 is provided in the middle of the pulling vertical transmission shaft 51. Built-in, the drive speed of the pulling tine 28 of each pulling case 29 is changed to high speed, medium speed, and low speed.

  Further, the cutting blade 32 divides the movable blade into two at the central portion of the cutting width and reciprocates the left and right movable blades 32 in opposite directions to cancel vibrations. The crankshaft 56a, which is the left cutting blade drive shaft, is lifted upward from a slightly inner side from the left end portion of the horizontal transmission shaft 45, and the crank, which is the right cutting blade drive shaft, from the right end portion of the lateral transmission shaft 45 via the bevel gear. The shaft 56b is raised upward, the left and right crankshafts 56a, 56b are projected upward from the lateral transmission case 22, and the power of the left and right movable blades 32 is taken out from the lateral transmission shaft 45.

  Further, among the transfer chains and the transfer tines constituting the cereal transfer mechanism, the power of the auxiliary stock former transfer chains 35, 36 and the rear tip transfer tine 38 is taken out from the upper part of the vertical transmission shaft 44. A rear transport drive case 57 extending leftward from the upper portion of 21 and interpolating and connecting the right end to the upper portion of the vertical transmission shaft 44 via a bevel gear by being inserted into the rear transport drive case 57; A drive sprocket 59 of one auxiliary transfer chain 36 and a rear end tip transfer tine drive sprocket 60 that winds and supports a transfer end portion of the tine chain that attaches the rear end tip transfer tine 38 at equal intervals are provided on the lower end of the drive sprocket shaft 61. The left end of the drive shaft 58 is interlocked and connected via a bevel gear, and the drive sprocket 59 of one auxiliary transport chain 36 is connected to the top of the vertical transmission shaft 44. A driving sprocket 63 of the other auxiliary transfer chain 35 is provided on the driven sprocket shaft 62 of one auxiliary transfer chain 36, and power is transmitted to the tip transfer tine drive sprocket 60. It is configured to communicate.

  Also, the power of the stock transport chain 34, the right stock transport chain 33R and the right tip transport tine 37R is taken out from the middle part of the vertical transmission shaft 44, and from the middle part of the vertical transmission case 21 to the right stock transport chain 33R. The right transport drive case 64 is raised at a right angle to the rotation plane, and the vertical transport drive case 65 is extended from the lower part of the right transport drive case 64 to the upper left oblique direction, and is inserted into the right transport drive case 64. The right conveying drive shaft 67 that interlocks and connects the lower end to the intermediate portion of the vertical transmission shaft 44 via a bevel gear, and the lower end is inserted into the lower portion of the right conveying drive shaft 67 via the bevel gear. A vertical transfer transmission shaft 68 is provided for interlocking connection, and a right stock transfer chain drive sprocket 69 and a right tip transfer tine 37R for winding and supporting the transfer end of the right stock transfer chain 33R are mounted at equal intervals. A right tip transfer tine drive sprocket 70 that winds and supports the transfer end of the tine chain is provided on the right transfer drive shaft 67, and a lower end thereof is connected to the vertical transfer drive shaft 68 via a bevel gear on the vertical transfer drive shaft 71. A stock transport chain drive sprocket 72 that winds and supports the transport start end of the stock transport chain 34 is provided, and a right stock transport chain drive sprocket 69 and a right tip transport tine drive sprocket 70 are provided from an intermediate portion of the vertical transmission shaft 44. The power is transmitted to the stock transport chain drive sprocket 72.

  Further, the power of the left stock former transfer chain 33L and the left tip transfer tine 37L is taken out from the left end portion of the horizontal transmission shaft 45 via the pulling vertical transmission shaft 51, and rightward from the intermediate portion of the pulling vertical transmission case 46, and A left transport drive case 73 extends in parallel with the rotation plane of the left stock transport chain 33L, and is inserted into the left transport drive case 73 so that the left end is interlocked with the intermediate portion of the vertical transmission shaft 51 via a bevel gear. The left stock source transport chain drive sprocket 75 for providing the left stock drive shaft 74 to be wound and supporting the intermediate portion of the left stock source transport chain 33L around the non-transport side and the left tip transport tine 37L are mounted at equal intervals. The right end of the left conveyance drive shaft 74 is interlocked and connected via a bevel gear to the intermediate portion of the drive sprocket shaft 77 provided with the left tip conveyance tine drive sprocket 76 for winding and supporting the intermediate portion, It is configured so as to transmit power to the left stock based transport chain drive sprocket 75 and the left fore conveying tines driving sprocket 76 from the left end of the transmission shaft 45.

  Moreover, the central stock which takes out the power of the central stock transport chain 33C and the central tip transport tine 37C from the intermediate portion of the horizontal transmission shaft 45 by a drive structure which will be described later and winds and supports the transport end portion of the central stock transport chain 33C. Power is transmitted to a central tip transport tine drive sprocket 79 that winds and supports a transport end portion of a tine chain that attaches the original transport chain drive sprocket 78 and the central tip transport tine 37C at equal intervals.

  As described above, the right stock former transport chain 33R and the right tip transport tine 37R, the left stock transport chain 33L and the left tip transport tine 37L, the central stock transport chain 33C and the central tip transport tine 37C, respectively. These are driven independently, and the central stock transport chain 33C and the central stock transport tine for the right stock transport chain 33R and the right stock transport tine 37R, the left stock transport chain 33L and the left stock transport tine 37L. 37C is 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. Central star foil by connecting the star foils 30L, 30R, 30C to each other. To prevent troubles such as breakage of each star wheel L, 30R, 30C due to excessive load caused by omission of the drive structure of the 0C and the central scraping belt 31C, the central stock transport chain 33C, and the central tip transport tine 37C It is configured.

  As shown in FIGS. 7 and 8, the power of the central stock transport chain 33C and the central tip transport tine 37C is taken out from the intermediate part of the horizontal transmission shaft 45, and the intermediate part of the horizontal transmission case 22 (of the horizontal transmission case 22) The central transport drive case 80 is raised from the right side of the connecting portion with the vertical transmission case 21 at a right angle to the rotation plane of the central stock transport chain 33C, and the transport start end of the central stock transport chain 33C is wound. The central conveyance drive case 80 is raised to the position near the rear side (immediately) of one (left side) central star wheel 30C provided on the same axis 40a as the driven sprocket 43C that supports the rotation. A transmission case 81 extends parallel to the rotation plane of the central stock transport chain 33C toward the rear end of the stock transport chain 33C toward the right end of the stock transport chain 33C. The lower end is interlocked with the intermediate portion of the horizontal transmission shaft 45 via a bevel gear and the upper end is inserted into the front inside of the transmission case 81, and the lower central portion is connected to the rear of the transmission case 81. A rear center transport drive shaft 83 that is inserted perpendicularly from the rear portion of the transmission case 81 toward the transport terminal end of the central stock transport chain 33C and is perpendicular to the rotation plane of the central stock transport chain 33C; A central tip transport tine drive sprocket that winds and supports a transport terminal end of a tine chain that attaches a central stock transport chain drive sprocket 78 and a central tip transport tine 37C that support the winding end of the central stock transport chain 33C. 79 is provided on the rear central transport drive shaft 83 and is provided at the upper end of the front central transport drive shaft 82 to be inserted inside the front portion of the transmission case 81. A rocket 84, an input-side sprocket 85 provided at the lower end of the rear central transport drive shaft 82 to be inserted into the rear inner side of the transmission case 81, and the upper end and rear central transport of the front central transport drive shaft 82 via the sprockets 84 and 85. A transmission chain 86 that is stretched between the lower end of the drive shaft 83 and interlocks and connects the front central transport drive shaft 82 and the rear central transport drive shaft 83 is inserted into the transmission case 81, A crank-shaped transmission path is formed in a side view for transmitting power to the central stock transport chain drive sprocket 78 and the central tip transport tine drive sprocket 79, and the central stock transport chain drive sprocket 78 The power is transmitted to the central tip conveying tine drive sprocket 79.

  As described above, the central stock transport chain 33C is a set disposed between the set of the right star wheel 30R and the right take-up belt 31R and the set of the left star wheel 30L and the left take-up belt 31L. The center part of the cut cereal rice cake C for the middle two strips, which is raked by the central star wheel 30C and the central rake belt 31C, is located between the left and right merging merging and transporting chains 33L, 33R. It is nipped and conveyed upward, and merged before the merged portion with the stock base part of the harvested cereal rice cake L for the left two strips of the right stock former confluence conveyance chain 33R, and is sandwiched and conveyed by the right stock former confluence conveyance chain 33R. In the merged part X1 between the stock base part of the harvested cereal rice cake R for the right two strips and the stock base part of the harvested grain cocoon C for the central two strips sandwiched and transported by the central stock former joint transport chain 33C, the right stock It is nipped and conveyed by the former confluence conveyance chain 33R. For the stock base part of the cut grain cereal R for the two side strands, the stock end part of the cut grain cereal C for the central two part strip sandwiched and transported by the central stock transport chain 33C is transferred to the transport end of the central stock transport chain 33C. It comes to join from the part.

  As is clear from the above, left and right and center stock former confluence transport chains 33L, 33R, 33C that sandwich and convey each of the left and right and middle harvested cereal grains L, R, and C stock base portions are provided, The left and right and center cutting wheels 30L, 30R and 30C are provided at the transfer start ends of the center stock merge transport chains 33L, 33R and 33C. In the combine, the central conveyance drive case 80 that rises in the vicinity of the rear side of the central take-up wheel 30C, and the power from the central conveyance drive case 80 toward the conveyance end portion of the central stock transfer merge chain 33C. A transmission case 81 is provided, and power is transmitted from the transmission case 81 to a drive wheel 78 that winds and supports the conveyance end portion of the central stock confluence conveyance chain 33C. Part The central conveyance drive case 80 is raised at a position away from the conveyance path and also away from the junction X1, and is raised to a position near the conveyance path of the harvested cereal rice cake R, C stock base and near the junction X1. In addition to eliminating the central conveyance drive case 80, a space S is provided below the transmission case 81 to prevent catching of the harvested cereal grains R and C stocks in the middle of conveyance and accumulation of hay and mud. It is configured.

  In plan view, the central conveyance drive case 80 is raised from the lateral transmission case 22 so that the front central conveyance drive shaft 82 is positioned on the left side of the rear central conveyance drive shaft 83, and the left side by the left stock transportation chain 33L. The transmission case transmits power from the front central conveyance drive shaft 82 to the rear central conveyance drive shaft 83 in the same direction (right diagonal rear direction) as the conveyance direction (right diagonal rear direction) of the two chopped grains L 81 is disposed and stored below the non-carrying action side of the central stock transport chain 33C between the transport action side of the left stock transport chain 33L and the transport action side of the central stock transport chain 33C. Is provided in a direction parallel to or away from the transport side of the left stock transport chain 33L, and the central transport drive case 80 and the transmission case 81 are trimmed by two left stock transport chains 33L Grain L Are configured to prevent a by conveying disorders and central lines based on the transport chain 33C of a strain base portion becomes the conveyance failure of a strain base portion of the cutting culms C of the central Article 2 min.

  Further, by raising the central conveyance drive case 80 from the horizontal transmission case 22 instead of the vertical transmission case 21, catching of the harvested cereal rice cake R and C stock in the middle of conveyance and accumulation of hay and mud are prevented. The central conveyance drive case 80 and the transmission case 81 are effective for the conveyance failure of the stock base part of the left-hand two-line harvested rice culm L by the left stock transport chain 33L and the central stock transport chain 33C. The position of the front and rear positions and the left and right positions of the central conveyance drive case 80 and the setting of the transmission direction by the transmission case 81 can be easily performed so as not to obstruct the conveyance of the stock base part of the chopped cereal C for two lines. It is composed.

  Transmission from the front central conveyance drive shaft 82 to the rear central conveyance drive shaft 83 may be performed by a transmission belt or a transmission shaft in addition to the transmission chain 86.

  As shown in FIGS. 9 to 12, the left stock former transfer chain 33L is, as described above, the left-side two-segment harvested grain culm L that has been raked by the left star wheel 30L and the left rake belt 31L. The stock base part is sandwiched and transported upward and then joined to the transport end part of the right stock base confluence transport chain 33R. The left two strips that are nipped and transported by the stock base part of the harvested pestle R, C for the total four strips of the stock base part of the cocoon R and the central two strips of the harvested grain cocoon C and the left stock former merge transport chain 33L At the junction X2 of the harvested cereal rice cake L with the stock base part, the left stock former transport chain is compared with the stock parts of the four crop harvested grain rice cakes R and C that are nipped and transported by the right stock former join transport chain 33R. The stock of the harvested cereal rice cake L for the left two strips held and transported by 33L So it is merged from the transfer terminal end portion of 33L.

  The rotary wheels 87 and 88, which are cereal transfer wheels that wind and support the conveyance end portion of the left stock transport chain 33L, are provided with brackets 89 that rotatably support the transfer end portion of the left stock transport chain 33L. Is attached to the transport frame 90 movably in the perspective direction by being fixed to a slide shaft 91 attached to the transport frame 90 so as to be movable in the perspective direction relative to the right stock former transport chain 33R. Is composed of a pipe member having a circular cross section into which a slide shaft 91 made of a solid round bar is inserted from one end, and supports the slide shaft 91 on one end side of the transport frame 90 so as to be movable in the perspective direction. The insertion end of the slide shaft 91 is brought into contact with the inner surface of the frame 90 which is slightly shorter than the axial length of the slide shaft 91 so that the slide shaft 91 is inserted. An inward step 92 that regulates the amount is formed, and the slide shaft 91 is movably supported in the perspective direction on one end side of the transport frame 90 with one end of the slide shaft 91 always protruding from one end of the transport frame 90. I am doing. Thus, the conveyance frame 90 and the slide shaft 91 have the same relationship as the cylinder and the piston rod, and the conveyance frame 90 corresponds to the cylinder and the slide shaft 91 corresponds to the piston rod. Even when the slide shaft 91 is most inserted into the transport frame 90, the bracket 89 is fixed to one end of the slide shaft 91 protruding from one end of the transport frame 90 so that the rotating wheels 87 and 88 can move in the perspective direction. It is configured to be attached to the transport frame 90.

  The rotary wheels 87 and 88 are normally held at the approach positions shown in FIG. 9 and FIG. 10, and the distance between the left and right stock transport chains 33L and 30R in the junction X2 (the transport passage width of the harvested cereals) The position holding mechanism 93 that holds the rotating wheels 87 and 88 in the approach position is provided to prevent Y from being narrowed and prevent a conveyance failure such as a posture disorder or dropout even with a small amount of harvested grains. Provided.

  The position holding mechanism 93 restricts movement of the slide shaft 91 in the perspective direction by inserting a pin 95 provided on the conveyance frame 90 side into a groove 94 provided in the slide shaft 91 in a direction orthogonal to the perspective direction. Rings 87 and 88 are held at the approach position. The groove 94 is provided in a ring shape on the outer surface of the slide shaft 91 with a semicircular cross section, and the transport frame 90 is located when the rotary wheels 87 and 88 are at the approach position. The groove 94 is provided at a position apart from the insertion end of the insertion portion of the slide shaft 91 which is inserted into the insertion shaft at a length approximately half of the insertion length, while the pin 95 is formed of a short round bar. 94 is formed into a spherical surface having the same radius as the radius of curvature of the groove 94, and an end surface opposite to the side inserted into the groove 94 is also formed into a spherical surface. In a direction perpendicular to the direction, and are vertically movable furnished short cylindrical pin holder 96 which is fixed startup and at right angles to the pivoting plane of the left stock original conveying chain 33L. The pin holder 96 is provided at an outer surface position of the conveyance frame 90 which is a position directly above the groove 94 when the rotating wheels 87 and 88 are in the approach position, and an inner hole in which the pin 95 is housed is provided in the conveyance frame 90. It communicates with the inside. As a result, when the rotating wheels 87 and 88 are in the approach position, the groove 94 moves directly below the pin 95 housed in the pin holder 96, and the pin 95 moves down inside the pin holder 96 by its own weight. The lower end is automatically inserted into the groove 94 in a direction perpendicular to the perspective direction.

  The length of the pin 95 and the pin holder 96 is such that when the lower end of the pin 95 is inserted into the groove 94, the top of the pin 95 is at the same height as the upper end of the pin holder 96, and the lower end of the pin 95 is the groove. The top of the pin 95 is formed so as to protrude from the upper end of the pin holder 96 by the depth of the groove 94 when the pin 95 is removed from the outer surface of the slide shaft 91.

  The position holding mechanism 93 has a retaining member 97 that holds the head, which is the end of the pin 95 opposite to the side that is inserted into the groove 94, and a shaft 98 that is parallel to the pin 95. An operation lever 99 for rotating the center is provided, and the retaining member 97 and the operation lever 99 are made of a single plate material. From the outer surface of the boss 100 that is rotatably fitted to the outside of the shaft 98. A retaining member 97 is extended in one direction, and an operation lever 99 is extended in the opposite direction. Further, the shaft 98 is connected to the left stocker in the U-shaped bracket 101 having an open part extending downward from the outer surface of the transport frame 90 between the transporting side and the non-transporting side of the left stocker transport chain 33L. The holding member 97 and the operation lever 99 are fixed to the upper surface parallel to the rotation plane of the transfer chain 33L at a right angle, and the holding member 97 and the operation lever 99 are connected via the boss 100 to the transfer action side and the non-transfer action side of the left stock transfer chain 33L. Between the upper surface of the pin holder 96 that is higher than the upper surface of the left stock transport chain 33L, the retaining member 97, and the operation lever 99. The retaining member 97 and the operation lever 99 are rotated around the shaft 98 at a height at which the lower surfaces coincide. Further, the operation lever 99 extends from the outer surface of the boss 100 toward the left outer side of the cutting portion 7. Further, of the two side pieces of the bracket 101 facing in the moving direction of the slide shaft 91, one side is fixed to the corner portion formed by the front side piece and the conveyance frame 90 from the bent portion of the L-shaped lever support frame 102, and the other Is extended to the lower surface of the intermediate portion of the operation lever 99 when the retaining member 97 is rotated to the upper surface of the pin holder 96, and the hole 103 formed in the operation lever 99 and the hole formed in the other end portion of the lever support frame 102 are provided. By inserting the snap pin 105 through 104, the operation lever 99 is fixed at a position where the retaining member 97 rotates to the upper surface of the pin holder 96. In addition, an inclined stopper 106 that extends obliquely upward from one side of the plate-shaped retaining member 97 is provided, and before the retaining member 97 rotates and moves to the upper surface of the pin holder 96 by the operation of the operation lever 99. By allowing the stopper 106 to pass through the upper surface of the pin holder 96, the retaining member 97 is smoothly rotated to the upper surface of the pin holder 96, and when the retaining member 97 is rotationally moved to the upper surface of the pin holder 96, The front end of the stopper 106 is brought into contact with the frame 107 fixed to the rear side piece, and the rotation operation of the operation lever 99 is stopped when the retaining member 97 is rotated to the upper surface of the pin holder 96.

  In addition to the slide shaft 91, a slide shaft 108 is provided which is inserted and supported by the both side pieces on the tip end side of the bracket 101 opposite to the transport frame 90, and is attached to the transport frame 90 so as to be movable in the perspective direction. The bracket 89 is fixed to the end portion of the shaft 108 in the same manner as the slide shaft 91, and the slide shaft is constituted by two parallel shafts 91 and 108, and the bracket 101 is opposite to the fixed end of the bracket 89. A disc-shaped stopper 109 for restricting the movement of the slide shafts 91 and 108 in the approaching direction is detachably bolted to the end of the slide shaft 108 protruding from the front side piece of the rotary shafts 87 and 88. Is moved to the approach position, and when the groove 94 is moved directly below the pin 95, the stopper 109 is brought into contact with the side piece on the front side of the bracket 101. So that the stop moving the approaching direction of the slide shaft 91,108 Te.

  As shown in FIGS. 9 and 10, when the rotating wheels 87 and 88 are in the approach position, the two slide shafts 91 and 108 protrude greatly from the conveyance frame 90 and the bracket 101, and the stopper 109 is the bracket 101. The groove 94 provided on one slide shaft 91 moves to a position directly below the pin 95 provided in the pin holder 96 fixed to the transport frame 90, and the pin 95 is pinned by its own weight. The lower end of the pin 95 is inserted into the groove 94 in a direction perpendicular to the perspective direction. In this state, the operation lever 99 is rotated to the position shown in FIG. 10, the retaining member 97 is rotated to the upper surface of the pin holder 96 to close the open upper surface of the pin holder 96, and the top portion 97 of the pin 95 is retained. 97, the pin 95 is sandwiched between the groove 94 and the retaining member 97, and the pin 95 is prevented from being removed from the groove 94. Then, the operation lever 99 is fixed by the snap pin 105, and the position holding mechanism is 93, the position of the rotary wheels 87 and 88 at the approaching position is maintained, and the interval (the width of the harvesting cereal conveyance path) Y between the left and right stock transportation chains 33L and 30R in the junction X2 is reduced to a small amount. Even if it is a chopped cereal rice bran, the stock base part of the four chopped cereal rice cakes R and C that are nipped and conveyed by the right stock merging and conveying chain 33R while preventing the occurrence of poor conveyance such as disorder of posture and dropping off Whereas The strains based on the transport chain 33L is intended to properly merge the strain base portion of the cutting culms L of the left two rows fraction is pinched and conveyed from the conveying end portion of Hidarikabu original conveying chain 33L.

  On the other hand, when the harvested cereal grains L, R, C are clogged at the junction X2, the machine is stopped, and the rotating wheels 87, 88 are moved by the position holding mechanism 93 from the left outer side of the harvester 7. By releasing the position holding at the approach position and moving the rotating wheels 87 and 88 back to the separation position, the interval Y between the left and right stock transport chains 33L and 33R in the junction portion X2 is expanded, and from the junction portion X2 Of the harvested cereal grains L, R, and C, that is, the clogging of the harvested cereal grains L, R, and C at the junction X2 is released. After the snap pin 105 fixing the operation lever 99 is pulled out from the holes 103 and 104, the operation lever 99 is rotated from the position holding position shown in FIG. 10 to the release position shown by the solid line in FIG. The member 97 is connected to the upper surface of the pin holder 96. Rotating and moving to a non-operating position that is disengaged, releasing the upper surface of the pin holder 96, and allowing the pin 95 to be pulled out of the groove 94 due to the upward movement of the pin 95, and thereafter the harvested cereal meal at the junction X2 Reaction force of clogging of L, R, C (left and right stock merging and conveying chain at the merging portion X2 by the harvested cereal grains L, R, and C tightly packed between the left and right stock merging and conveying chains 33L and 33R at the merging portion X2 Each of the slide shafts 91 and 108 is moved backward by the force acting in the direction of expanding the distance Y to 33L and 33R, that is, the force acting in the direction of moving the rotating wheels 87 and 88 backward, and at the start of the movement. The slide shafts 91 and 108 are further moved backward in a state where the pin 95 is automatically pushed up by the fitting shape of the lower end and the groove 94 and the pin 95 is lifted on the outer surface of the slide shaft 91. The rotating wheel 87, 88 is to retract the separation position shown in solid lines in solid lines and 12 of FIG. 11.

  In addition, after releasing the clogging of the harvested cereal grains L, R, and C at the junction X2, the rotating wheels 87 and 88 are returned to the original approach position again and held in that position, that is, the rotating wheels 87, The resetting of 88 is stopped when the slide shafts 91 and 108 are moved forward by pushing the bracket 89 or the like, and the forward movement is stopped by the stopper 109 coming into contact with the front side piece of the bracket 101. The groove 94 is moved to a position directly below the pin 95, and the pin 95 is moved down inside the pin holder 96 by its own weight, and the lower end of the pin 95 is automatically changed to the groove 94 in a direction perpendicular to the perspective direction. Is included. Thereafter, when the operation lever 99 is rotated from the position shown by the solid line in FIG. 12 to the position direction shown in FIG. 10, the rotation is stopped by the front end of the stopper 106 coming into contact with the frame 107. 97 is rotated to the upper surface of the pin holder 96, and the operation lever 99 is fixed by the snap pin 105 at that position.

  As apparent from the above, of the pair of left and right stock former confluence transport chains 33L and 33R that sandwich and convey each of the left and right harvested cereal grains L and R stock base parts, In the groove 94 provided in the slide shaft 91, the rotating shafts 87, 88 for winding and supporting the conveyance end portion are supported on the conveyance frame 90 so as to be movable in the perspective direction with respect to the other stock merge transportation chain 33R. A position holding mechanism for holding the rotary wheels 87 and 88 at the approach position by restricting the movement of the slide shaft 91 in the near and near direction by inserting a pin 95 provided on the transport frame 90 side in a direction orthogonal to the perspective direction. 93, and by removing the pin 95 from the groove 94, it is easy to release the position holding at the approach position without moving the rotating wheels 87 and 88 from the approach position. Done so, reaper culms L at the joining portion X2, is configured so as to perform jam releasing of R comfortably well workability.

  Further, the slide shaft is composed of two parallel shafts 91 and 108, and a groove 94 for inserting the pin 95 is provided on one slide shaft 91 of the two slide shafts 91 and 108. It is configured to suppress the occurrence of twisting when the wheels 87 and 88 are moved in the perspective direction, and to smoothly move the rotating wheels 87 and 88.

  Further, a retaining member 97 that holds the end of the pin 95 opposite to the side to be inserted into the groove 94, and an operation lever for rotating the retaining member 97 about a shaft 98 parallel to the pin 95. 99 is composed of a single plate material, and by rotating the operation lever 99, the rotary wheels 87 and 88 are held at their approach positions and released, and the harvested cereal grains L and R at the junction X2 It is configured so that clogging can be easily released with a non-tool and with good workability.

  Further, the groove 94 is provided in a ring shape on the outer surface of the slide shaft 91 with a semicircular cross section, and the end surface of the pin 95 on the side to be inserted into the groove 94 is formed into a spherical surface having the same curvature radius as that of the groove 94. Thus, the pin 95 is configured to be pulled out of the groove 94 and retracted to the separated position of the rotating wheels 87 and 88 by the clogging reaction force.

  As shown in FIGS. 13 and 14, the left and right and center stock former transport chains 33L, 33R, 33C, the stock former transport chain 34, the auxiliary stock former transport chains 35, 36, and the like are used to construct the grain stock former transport mechanism. 110 is provided with a pinching mechanism 111 for pinching and transporting the stock parts of the harvested cereal grains L, R, and C to and from the transfer chain 110. A bracket 113 formed in a gate shape in cross section is attached to a fixed plate 112 fixed to a main frame or the like of the section 7 so that the position thereof can be adjusted in a perspective direction with respect to the conveying action side of the conveying chain 110, and a pair of clamping rails is attached to the bracket 113. The support arm 114 is inserted and supported so as to be movable in the perspective direction, and the sandwiching rail 115 is provided at the ends of the pair of sandwiching rail support arms 114 protruding between the transfer chain 110 and the bracket 113. Firmly adhered, and repression support toward the nip 扼 rail 115 to the conveying action side of the conveyor chain 110 by a spring 116.

  In addition, the pinching mechanism 111 with respect to the fixing plate 112 has a pair of bolts 117 erected and fixed on the upper surface of the bracket 113 in a pair of long holes 118 opened in parallel to the perspective direction on the upper fixing plate 112. The bolt 117 is fastened to the fixing plate 112 with two upper and lower nuts 119 and 120 that are inserted and screwed to the bolt 117 on the upper surface side and the lower surface side of the fixing plate 112, thereby adjusting the vertical position of the pinching mechanism 111. It is also used for fixing, so that the position of the pinch mechanism 111 can be easily adjusted to the center of the conveying chain 110, and the posture of the harvested cereal grains L, R, C due to the misalignment of the pinch mechanism 111 is prevented or dropped. It is configured to improve the cereal transfer function.

  As described above, the bolt 117 that fastens the pinching mechanism 111 to the fixing plate 112 is provided in a direction that adjusts the vertical position, and both the vertical adjustment and fixing of the pinching mechanism 111 are used. The function of positioning the scissors mechanism 111 at the center of the transport chain 110 can be stabilized. In addition, the structure can be simplified because both vertical position adjustment and fixing are used, and the clamping bolt of the pinching mechanism 111 does not protrude on the conveyance path side, so that catching and accumulation of conveyance grains and sawdust are suppressed. It is possible to easily adjust not only the vertical position of the pinching mechanism 111 but also the position in the perspective direction, and both the vertical position adjusting portion and the fixing portion are in the center of the bracket 113. In addition, it is possible to suppress catching and accumulation of transported grains and sawdust.

  As shown in FIGS. 15 and 16, each pulling drive case 48 is connected to the lower end surface of the pulling drive shaft 53 to be inserted thereinto by connecting the input end portion of the upper tip conveying drive case, which will be described later. And a lid 122 for closing the hole 121 is set bolt 123 on the outer surface of each pulling drive case 48 around the hole 121. The pulling drive shaft 53 is formed on the pulling drive shaft 53 out of a pair of bevel gears 125 and 126 that are linked to the pulling tine drive shaft 49. A shaft end portion 127 is formed so as to protrude from one bevel gear 125 provided in the shaft and extend to a position near the hole 121.

  On the other hand, each tine case 128 of each upper tip conveying tine 39L, 39R, 39C is attached to the output end portion, and an upper portion forming an input end portion 129a connected to the hole 121 of each pulling drive case 48 is formed. A tip conveyance drive case 129 is provided. The upper tip conveyance drive case 129 includes an input shaft 130, an output shaft 131, and a pair of bevel gears 132 and 133 for interlockingly connecting the two shafts 130 and 131. The shaft coupling 134 is fixed to the shaft end 127 of the drive shaft 53, the end of the shaft coupling 134 is projected from the output end of the upper tip transport drive case 129, and the output shaft 131 is moved to the upper tip transport drive case 129. The rotation end 135 is projected from the output end of the tine case 128, and the rotation end 135 is attached to the protruding end at equal intervals. Further, each pulling drive is provided on the outer surface of the input end 129 a of the upper tip conveyance drive case 129. A flange 129b corresponding to the flange 124 on the case 48 side is formed.

  Then, the input end portion 129a of the drive case 129 of the upper left tip conveying tine 39L is connected to the hole 121 of the pulling drive case 48 of the second pulling case 29 from the left, and the shaft coupling 134 of the input shaft 130 is lifted. The drive case 129 is spline-fitted to the shaft end portion 127 of the drive shaft 53, and the drive case 129 is integrally connected to the lower end portion of the pull-up drive case 48 of the second pull-up case 29 from the left via the flange 124 and the set bolt 123. The left upper tip conveying tine 39L is mounted and supported on the upper rear side of the second raising case 29 from the left, and power is transmitted to the tine 39L for rotational driving. Similarly, the drive case 129 of the upper right tip conveying tine 39R is integrally connected to the lower end portion of the pulling drive case 48 of the second pulling case 29 from the right, and the upper rear side of the second pulling case 29 from the right The drive case 129 of the center upper tip transport tine 39C is driven and supported by the third pull-up case 29 from the right. 48 is integrally connected to the lower end of 48, and the upper upper tip conveying tine 39C is mounted and supported on the back side upper part of the third pulling case 29 from the right, and the tine 39C is driven to rotate while being driven. A hole 121 for connecting the upper tip conveyance drive case of the pull-up drive case 48 of the pull-up case 29 is provided with the lid 122 and a set bolt 123 and a flange. It is configured to close the process and fixed through 124.

  With the above configuration, there is no need to prepare two types of the pulling drive case 48, that is, the case where the upper tip conveying tines 39L, 39R, 39C are attached and the case where it is not attached, the pulling drive case 48 can be unified into one type, and the manufacturing cost is reduced. The top tip transport tines 39L, 39R, and 39C can be properly adapted to different mounting positions and numbers depending on the model, and the top tip transport tine depends on the type and variety of crops to be cut. It is possible to appropriately cope with use / nonuse of 39L, 39R, and 39C.

The whole side view of a combine. The whole top view of a combine. The side view of a cutting part. The cutting part top view. 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 side view of a position holding mechanism part. The top view of a position holding mechanism part. The side view of the position holding mechanism part of a cancellation | release state. The top view of the position holding mechanism part of a cancellation | release state. Cross-sectional explanatory drawing of a clamping mechanism part. Plane explanatory drawing of a clamping mechanism part. Sectional side view of the pulling drive case which removed the upper tip conveyance tine. Sectional side view of the pulling drive case which attached the upper tip conveyance tine. The perspective view of the raising drive case which attached the upper tip conveyance tine. The front view of an upper tip conveyance drive case. The top view of a cover body.

Explanation of symbols

22 Horizontal transmission case 30L, 30R, 30C Stirring wheel (star wheel)
33L, 33R, 33C Stock merging transport chain 78 drive wheel (central stock transport chain drive sprocket)
80 Central conveyance drive case 81 Transmission case

Claims (1)

In a combine comprising an erecting case having an erecting tine for erecting an uncut cereal meal after weeding, and an elevating drive case for driving the erecting case,
In the pulling drive case, an upper tip transport drive case having an upper tip transport tine for transporting the tip is detachably attached,
The pulling drive case is formed with a hole for connecting the input end of the upper tip conveying drive case on the lower end surface on the extension line of the pulling drive shaft inserted therein, and the pulling drive case around the hole A flange for integrally connecting the input end portion of the upper tip conveying drive case or the lid for closing the hole with a set bolt so as to be removable with a set bolt is formed on the outer surface of the upper tip conveying drive case. While forming the shaft end that extends to a nearby position,
In the upper tip transport drive case, a shaft joint with the shaft end of the pulling drive shaft is fixed to the input end of the internally mounted input shaft, and the end of this shaft joint is connected to the output end of the upper tip transport drive case. Protruding, forming a flange corresponding to the flange on each pulling drive case side on the outer surface of the input end of the upper tip conveyance drive case,
The upper tip conveying drive case is integrally connected to the lower end of the pulling drive case via a flange and a set bolt ,
The combine is characterized in that the upper tip conveying drive case is connected to a part of the drive case, and the lid is attached to the other drive case .

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