JP2019103406A - Combine - Google Patents

Abstract

To provide a combine that can prevent planted grain culms from being trodden even if the number of reaping rows is changed.SOLUTION: A reaping part 2 is divided into a first reaping part 2R and a second reaping part at a boundary of pick-up devices adjacent to each other in a state that non-operating return routes are close to each other of a plurality of pick-up devices 11. In the reaping part 2, the second reaping part is configured so as to be attached to and detached from the first reaping part 2R, and is configured so as to perform reaping work whether in a broad width state that the second reaping part is attached to the first reaping part 2R or in a narrow width state that the second reaping part is detached from the first reaping part 2R. The reaping width is configured to be broader than a travelling width of right and left travelling devices 4 both in the broad width state and in the narrow width state. The reaping part 2 is disposed at such a position that the travelling width of the right and left travelling devices 4 is within the reaping width with respect to a machine body.SELECTED DRAWING: Figure 31

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a combine, and more particularly, to a combine equipped with a reaper for harvesting a plurality of rows of planted grain weirs at the front of an airframe, and wherein the airframe is equipped with left and right traveling devices.

  A combine with a large number of cutting lines such as eight-row cutting has a large cutting width (width) by the cutting section and exceeds the regulation width when traveling on the road, so for example, it can be loaded and transported on a transport vehicle In this case, there are problems such as being unable to travel on the road as it is.

  In the prior art, in order to support a plurality of wedging tools of a reaper section, the front and back direction frames located on both ends of the cutting width direction among a plurality of front and back direction frames extending in the front and back direction of the machine are removed There has been a configuration in which a long cutting blade extending across the entire width of the above is removed so that the width can be contained within a predetermined width (see, for example, Patent Document 1).

JP, 2009-278902, A

  Such a combine is configured to be capable of cutting work, even in a wide state where multiple lines can be cut at once, or in a compact narrow state where several lines are removed.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a combine that does not step on a grain casket even if the number of cutting lines is changed.

  In order to achieve the above-mentioned object, the characteristic configuration of the combine according to the present invention is provided with a reaping section for reaping a plurality of rows of planted grain weirs at the front of the airframe, and the airframe is provided with left and right traveling devices. A combine device, wherein a plurality of raising devices corresponding to at least the number of cutting lines, a cutting device for cutting the origin of the planted rice straw, and a conveying device for carrying the harvested rice grain toward the rear of the machine A plurality of the protracting devices, a protracting action path for moving in a state where the propelling claw protrudes, and a non-acting return path for moving in a state in which the propelling claw retracts; In the boundary between the raising devices adjacent to each other in the state where the non-operation return paths are close to each other among the raising devices, the first cutting unit and the second cutting unit are divided, and the cutting unit is the second cutting unit Unit is paired with the first reaper In a wide state where the second reaper is attached to the first reaper and in a narrow state where the second reaper is removed from the first reaper The cutting operation is possible even if there is any, and the cutting width of both the wide state and the narrow state is wider than the traveling width of the left and right traveling devices, and the cutting portion is relative to the machine body Therefore, the travel width of the left and right travel devices is provided at a position where the travel width falls within the cutting width.

  According to the above-described configuration, the cutting width in both the wide state and the narrow state is wider than the traveling width of the left and right traveling devices, and the cutting part is the traveling width of the left and right traveling devices with respect to the airframe. The second reaper is removed from the first reaper even when the second reaper is attached to the first reaper because the second reaper is attached to the first reaper. Even in the narrow state, the traveling device does not step on the pre-harvested grained weir during the reaping operation.

  In the present invention, a forward and downward drive shaft for transmitting power from a power source provided to the machine body to the reaper is provided, and the drive shaft is in the lateral direction of the reaper when in the wide state. It is preferable to be disposed at the center of the

  The motive power from the motive power source provided in the airframe is transmitted to the reaper via the front lower drive shaft. The power is distributed in the left-right direction of the reaper by the distribution mechanism, and transmitted to each group of raising devices, cutting devices, and transfer devices provided in the reaper. At that time, from the viewpoint of the efficiency of power transmission, it is preferable that the difference between the distance from the distribution mechanism to the leftmost device group and the distance from the distribution mechanism to the rightmost device group be as small as possible.

  By the way, the reaper is at the left end from the distribution mechanism between the wide state where the second reaper is attached to the first reaper and the narrow state where the reaper is removed from the first reaper The distance to the group of devices and the distance from the distribution mechanism to the group of devices on the right end are different.

  For example, when the distribution mechanism is disposed at the center in the left-right direction of the reaper in the narrow state, the distance from the distribution mechanism to the leftmost device group and the distribution mechanism to the rightmost device group in the wide state The distance of d varies greatly depending on the size of the second reaper.

  On the other hand, when the distribution mechanism is disposed at the center in the horizontal direction of the reaper in the wide state, the distance from the distribution mechanism to the leftmost device group and the distribution mechanism to the rightmost device group in the narrow width state The difference in distance is smaller than when the distribution mechanism is disposed at the center in the left-right direction of the reaper in the narrow state. By arranging the drive shaft at the center in the left-right direction of the reaper when in the wide state, the distribution mechanism that distributes the power transmitted from the drive shaft to the left and right can be arranged at the center in the left-right direction. A reduction in the efficiency of power transmission can be reduced.

  In the present invention, the cutting drive shaft for transmitting the power from the driving shaft to the raising device, the cutting device and the conveying device extends in the cutting width direction of the cutting portion at the front end of the driving shaft. A lift drive shaft, which is interlocked with the drive shaft and transmits power from the reaper drive shaft to the lift device, is interlocked with the reaper drive shaft so as to extend in the vertical direction. Preferably, the drive shaft is provided at the rear of the raising device at an end portion of the first cutting portion at the side of the boundary with the second cutting portion.

  According to the above-described configuration, by devising the arrangement of the cutting drive shaft and the raising drive shaft, it is possible to use the internal space of the cutting unit as a transportation route for the cutting grain basket.

  In the present invention, preferably, the second reaper is configured to be removable from the first reaper by moving the second reaper in the left-right direction.

  If the second reaper is moved upward with respect to the first reaper to remove it in order to change the number of reaming strips, such as a crane for lifting the second reaper or a lifting jack The device is necessary and complicated. On the other hand, according to the above-mentioned configuration, the second reaper can be easily attached to and detached from the first reaper by moving in the left-right direction, so that a device such as a crane or a jack is unnecessary. is there.

It is a whole side view of a combine. It is a whole top view of a combine. It is a front view of a reaper. It is a side view of the reaper in a wide state. It is a side view of the reaper in a folded state. FIG. 5 is a simplified plan view of the transport device in the wide state; It is a simplified top view of the conveyance apparatus of a folded state. It is a figure which shows the transmission structure of a reaper. It is a rear view of a raising device. It is a top view of a cutting device. It is a vertical front view of a scraping part and a cutting device. It is a partial top view of a cutting device. It is a partial vertical front view of a cutting device. It is a perspective view of a 2nd frame. It is a side view of the 2nd frame. It is a perspective view of a 2nd frame. It is a perspective view of a first frame. It is a side view of the first frame. It is a whole perspective view of a reaper frame. It is explanatory drawing of the link mechanism in the wide state, and a drive mechanism. It is an explanatory view of a link mechanism and a drive mechanism in a folding state. It is explanatory drawing of the flame | frame for connection, and a front connection part. It is explanatory drawing of a back connection part and a lower connection part. It is explanatory drawing of a back connection part and a lower connection part. It is explanatory drawing of a back connection part and a lower connection part. It is explanatory drawing of the coupling mechanism in a raising drive shaft. It is explanatory drawing of a control mechanism. It is explanatory drawing of horizontal attitude | position control. It is explanatory drawing of horizontal attitude | position control. It is a side view of the reaper in a narrow state. FIG. 5 is a simplified plan view of the transport device in a narrow state;

  Hereinafter, an embodiment of a combine according to the present invention will be described based on the drawings.

〔overall structure〕
As shown in FIG. 1 and FIG. 2, the combine according to the present invention comprises an airframe 1 and a reaper section 2 for reaping a plurality of (in this embodiment, eight) planted cereals. The reaper 2 is pivotably connected to a support 90 (see FIG. 4) of the airframe 1 at the front portion of the airframe 1 about the horizontal axis P1, and is a lift cylinder as an elevating mechanism provided on the airframe 1. The supine angle to the field is configured to be changeable by the expansion and contraction of 3.

  In the present embodiment, the side on which the reaper 2 is provided in FIGS. 1 and 2 is the front, and the opposite side is the rear in the front-rear direction of the airframe 1. Therefore, the vertical width direction of the airframe 1 corresponds to the front-rear direction of the airframe 1. In the forward traveling state in which the vehicle 1 travels forward with respect to the left and right direction of the vehicle body 1, the right hand side of the driver viewing the traveling direction is the right, and the left hand side is the left. Therefore, the lateral width direction of the airframe 1 corresponds to the left-right direction of the airframe 1.

  The airframe 1 comprises a pair of left and right crawler type traveling devices 4 and an operation unit 5 on the right side of the front part, and a threshing device 6 for threshing the grain scraped by the reaper 2 behind the threshing device A grain tank 7 for storing grains obtained by the treatment is provided in line with the left and right direction of the airframe 1.

  The traveling device 4 is provided with a posture changing mechanism 4A, and the position changing mechanism 4A is configured so that the vertical position relative to the machine 1 is variable, and the vertical position of the machine 1 is made different between front and rear or left and right. The posture is configured to be changeable. The posture change mechanism 4A is controlled by the control mechanism 600 (see FIG. 27).

  The driving unit 5 is covered by a cabin 5A. The operation unit 5 is provided with an operation tool 5B related to the operation of each unit of the combine.

  The threshing device 6 squeezes the ear tip side in the inside of the throttling chamber while holding and conveying the stock origin of the reaping grain crucible transferred from the reaper 2 with the threshing feed chain 8, and is provided at the lower part of the throttling chamber The sorting unit is configured to sort and process grains and dust. The grains are stored in a grain tank 7 and dust is discharged to the outside of the machine. The grains stored in the grain tank 7 can be discharged to the outside by the discharge device 7A. The waste straw after the threshing treatment is shredded by the shredding device 9 and discharged out of the machine.

[Mowing section]
As shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 6, the reaper 2 has a plurality (in this embodiment, the number of reaping streaks is eight) in the division draft of the planted grain weirs of the reaping streak 9) Weighing tools 10 are provided at the front end of the reaper 2 and a plurality of (i.e., eight) raising devices 11 corresponding to the number of cuttings are provided at the rear of the former and the stock origin of the planted rice straw It comprises a cutting device 12 for cutting, a conveying device 13 for conveying the reaper to the rear of the machine body 1, and a reaper frame F for supporting these.

  The reaper 2 is larger than the traveling device 4 on the left side (uncut side) and protrudes to the left side. As a result, there is no risk of stepping on the uncut grain weir by the traveling device 4 on the left side, and the reaping work can be performed satisfactorily (see FIG. 6). In addition, about 165 mm is provided in the right side (right stepping space TR), and about 650 mm is provided in the left side (left stepping space TL). By making the right stepping allowance TR sufficiently taken, it is easy to carry out the reaping work at the right end of the field, for example, even at the edge.

  In the present embodiment, in the reaper 2, a portion corresponding to the six right sides constitutes the first reaper 2R, and a portion corresponding to the two left sides forms the second reaper 2L.

  The second reaper 2L of the reaper 2 is a boundary L between the sixth raising device 11 and the seventh raising device 11 from the right end of the eight raising devices 11. The first reaper 2R is configured to be removable.

  FIGS. 4 and 6 show the state of the reaper 2 in a wide state in which the second reaper 2L is attached to the first reaper 2R, and FIGS. 30 and 31 show the second reaper 2L. A state of the reaper 2 in a narrow state removed from the first reaper 2R is shown. However, in FIG.4 and FIG.5, description of the cover C (refer FIG.1 and FIG.2) which covers the front side surface of the reaper part 2 is abbreviate | omitted.

[Trigger]
As shown in FIG. 1 and FIG. 4, the raising device 11 is provided in a standing posture in which the rear end inclines so as to be positioned on the front side of the airframe 1 toward the lower end and to the rear side of the airframe 1 toward the upper end. . Then, as shown in FIG. 9, the raising device 11 includes the drive sprocket 15 and the tensioning sprocket 16 positioned on the upper side in the inside of the raising case 14 that constitutes a part of the cutting frame F, and the lower side. An endless pivoting chain 18 is provided which is wound around each of the positioned driven sprockets 17, and the endless pivoting chain 18 is provided with a plurality of protracting claws 19 at predetermined intervals along the longitudinal direction. There is. The raising claw 19 is supported by the endless rotation chain 18 so as to be changeable in a standing posture and a lying posture.

  As shown in FIG. 9, a raising drive shaft 20 is provided which extends in the left-right direction across the tops of the eight raising devices 11. The power from the raising drive shaft 20 is transmitted to the drive sprocket 15 via the relay transmission shaft 22 provided inside the relay transmission case 21. The raising drive shaft 20 has a hexagonal cross-sectional shape, and is configured to transmit power in a square fitting state.

[Scissors]
Of the nine branching tools 10, the two branching tools 10 located on the outermost side in the left-right direction of the airframe 1 separate the planted weirs into a target for harvesting and a target for harvesting, and a target for harvesting Is introduced into the wake path adjacent to the wefting tool 10, and an unintended cereal grain is guided laterally outside the wake path. The other dividing tool 10 splits the grain which is to be planted on the two planting streaks on both sides of the dividing tool 10 and introduces it to the raising path on both sides of the dividing tool 10.

[Proceding action route and non-action return route]
The raising device 11 includes a raising action path H1 which moves in a state where the raising claws 19 protrude sideways, and a non-action return path H2 which moves in a state where the raising claws 19 are retracted. That is, one of the vertical movement paths on the left and right sides of the endless rotation chain 18 is set as the raising action path H1, and the other is set as the non-action return path H2. In the raising action path H1, a guide plate (not shown) is provided at a place where the endless rotation chain 18 passes, for raising and raising the raising claws 19.

  The plurality of raising devices 11 are arranged side by side in the left-right direction in a state where the raising action paths H1 are close to each other and the non-action return paths H2 are close to each other. In each raising device 11, the rotation direction is set such that the raising claw 19 moves upward in the raising action path H1. That is, in the raising and lowering devices 11 coming in contact with each other, the rotation directions of the endless rotation chain 18 are set to be opposite to each other.

  In the raising mechanism 11 having such a configuration, in the raising action path H1, the raising claw 19 protruding sideways moves up while acting on the grain scale and moves upward, and when the rising end is reached, it is removed from the grain scale The non-action return path H2 of the raising case 14 is lowered to return to the raising action path H1 side. As a result, each raising device 11 causes the uprising claw 19 moving upward to raise and process the cereal grain introduced into the raising path, and supplies it to the cutting device 12.

[Cutting device]
As shown in FIG. 4, FIG. 10 and FIG. 11, the cutting device 12 spans the entire width in the left-right direction (corresponding to the cutting width direction) so as to act on the planted cereal weirs of all cutting object strips (eight lines). It is formed in a long shape and is composed of a clipper-type cutting blade of a known structure.

  The cutting device 12 is a right cutting portion 12R (which is a cutting portion on the first cutting portion 2R side) acting on the right six cutting edges among the eight cutting edges, and a left side cutting acting on the left two cutting edges. It is divided into a part 12L (which is a cutting part on the side of the second mowing part 2L).

The right side cutting unit 12R will be described.
As shown in FIG. 10 and FIG. 11, the right side cutting portion 12R is a left and right cut for driving two sets of two divided clipper-type cutting blades 25 arranged in parallel in the left and right direction and two sets of cutting blades 25 respectively. And a blade drive mechanism 26.

  As shown in FIG. 12, the left and right cutting blades 25 are each provided with a fixed blade 27 in which a large number of teeth 27A are juxtaposed in the left and right direction, and a large number of teeth 28A arranged in sliding contact with the upper side of the fixed blade 27. The movable blade 28, the cradle 29 for receiving and supporting the fixed blade 27, and a plurality of knife clips 30 for preventing the floating of the movable blade 28 are provided.

  As shown in FIG. 10, the movable blade operating body 31 is provided near the outside of each of the left and right movable blades 28, and the movable blade 28 is fixed by driving the cutting blade drive mechanism 26 acting on the movable blade operating body 31. The blade 27 is configured to be reciprocated in the left-right direction along the left-right direction.

  The movable blade operating body 31 is provided with a U-shaped engaging groove 32 in plan view. The cutting blade driving mechanism 26 has an arm 34 provided at one end with an operation roller 33 engaged with the engagement groove 32 of the movable blade operating body 31, an interlocking rod 35 whose one end is connected to the other end of the arm 34, A drive rotating body 36 functioning as a crank arm connected to the other end side of the interlocking rod 35 is provided. Then, the rotary drive force of the drive rotating body 36 is converted into a reciprocating power to drive the movable blade 28 back and forth.

  The movable blade 28 is driven to slide in a reciprocating manner in the left-right direction, whereby the planted cereal weir is cut by the movable blade 28 and the fixed blade 27. The movable blades 28 of the cutting blade 25 on both the left and right sides are configured to slide in opposite directions to each other, so as to minimize the vibration associated with the sliding operation of the movable blade 28 as much as possible.

  As shown in FIG. 12 and FIG. 13, the upper left fixed blade 37 positioned on the upper side of the left and right movable blades 28 is provided at the left and right middle butt between the left and right both cutting blades 25. As described above, in the butt portion, the fixed blade 37 is located on the upper side, thereby preventing dust from being caught between the fixed blade 37 and the movable blade 28 at the butt portion. The fixed blades 37 on the upper side are separately provided to the left and right cutting blades 25 respectively.

The left side cutting unit 12L will be described.
As shown in FIG. 10, the left side cutting part 12L is provided with a cutting blade 38 having a configuration similar to that of the cutting blade 25 in the right side cutting part 12R and a cutting blade drive mechanism 39 for driving the cutting blade 38. There is. Since the cutting blade 38 is the same as the cutting blade 25 of the right side cutting portion 12R except that the number of cutting strips is different, the detailed description will be omitted. The cutting blade driving mechanism 39 is also the same as the cutting blade driving mechanism 26 of the right side cutting portion 12R, and thus the detailed description is omitted. Thus, the right side cutting part 12R and the left side cutting part 12L are respectively provided with the cutting blade drive mechanisms 26 and 39 separately.

  At the butt between the cutting blade 25 of the right side cutting portion 12R and the cutting blade 38 of the left side cutting portion 12L, like the butting portion of the right side cutting portion 12R, the upper fixed blade 37 located above the movable blade 28 Is equipped. The fixed blade 37 on the upper side is separately provided to the cutting blade 25 in the right side cutting portion 12R and the cutting blade 38 of the left side cutting portion 12L. The movable blade 28 in the cutting blade 38 of the left cutting portion 12L is configured to slide in the direction opposite to the sliding movement direction of the movable blade 28 in the cutting blade 25 in the right cutting portion 12R.

  The right cutting portion 12R and the left cutting portion 12L are formed so that the movable blade 28, the fixed blade 27, and the cradle 29 can be separated separately, and are arranged in close proximity in the butt state.

[Conveying device]
As shown in FIG. 4 and FIG. 6, the transport device 13 is provided with a plurality of scraping portions 40 for scraping backward while collecting harvest grain clumps by two streaks, and two streaks of the first and second streaks from the right side The first intermediate conveyance unit 41 that conveys the reaping grain casket to the left rear side joining point, and the second line conveying the reaping grain crest of the second line from the right to the third line and the fourth line to the backward side joining point The middle conveyance part 42, the third middle conveyance part 43 which conveys the reaping grain weirs of the fifth row and the sixth row from the right to the joining location, the second row of the seventh row and the eighth row from the right In other words, the fourth intermediate transport unit 44 that transports the left end two rows of reaping grain pods backward, the left junction transport part 45 that inherits the reaping grain pods transported by the fourth intermediate transport portion 44, and transports them to the merging point, At the beginning of the threshing feed chain 8 the Hachijo reaping grain weirs joined at the meeting point The feeding and conveying unit 46 for conveying by, the harvesting grain weir conveyed by the first intermediate conveying unit 41, and the ear tip retention conveying device that acts on the ear tip side of the harvesting grain weir joined at the merging point to hold and guide the ear tip side It has 47.

  As shown in FIG. 6, the scraping portion 40 is positioned near the upper side of the cutting device 12 side by side in the left-right direction of the airframe 1, and is engaged with and rotated by a pair of rotary packers 48 and 49 for scraping. A lower scraping device 50 (which is a scraping rotary body formed in a substantially star-like shape) and a pair of endless rotating belts with a projection positioned above the lower scraping device 50 And 51 an upper scraping device 52. And four sets (scraping part 40A-40D) are provided in the state which is lined with the said scraping part 40 in the left-right direction (cutting width direction).

  The lower side scraping device 50 scrapes the stock origin side of the two rows of reaping grain cropped by the cutting device 12 between the pair of packers 48 and 49 and sends out from the packers toward the rear of the airframe 1 . In the lower side scraping device 50, one packer 48 of the pair of packers 48, 49 is configured as a drive-side packer to which power is transmitted, and the other packer 49 is engaged with the packer 48 to be driven. It is configured as a driven packer.

  The pair of endless rotating belts 51 in the upper side scraping device 52 are configured to rotate by receiving power from the left and right packers 48 and 49 respectively, and locking and conveying the stock origin side of the two rows of reaping grain gutters Scrape it and send it back.

  As shown in FIG. 11, the three sets of lower scraping devices 50 (50A to 50C) located on the right side are arranged such that the packers 48 and 49 are located at the same vertical height, and the left end A pair of lower scraping devices 50 (50D) located in the section are arranged at a lower height than the lower scraping devices 50 (50A to 50C).

  Although the transmission structure will be described later, since the three sets of scraping portions 40 (40A to 40C) located on the right side are driven by power from the same transmission shaft, they rotate in synchronization. Therefore, even if the packers 48 and 49 of the adjacent lower side scraping devices 50 (50A to 50C) partially overlap in plan view, a good meshing state can be maintained.

  As shown in FIG. 6 and FIG. 8, the first intermediate conveyance section 41 holds the stock origin of the two rows of reaping grain pods scraped by the rightmost scraping section 40 (40A), and on the left rear side It comprises a first stock origin sandwiching and conveying device 53 for conveying toward the merging point, and a front side endless rotary body 47F which is a front half portion of the ear tip engaging and conveying device 47.

  The first stock origin sandwiching and conveying apparatus 53 includes an endless rotation chain wound around a plurality of sprockets. A pinching rail (not shown) is provided to face the endless pivoting chain, and the end of the harvesting pivoting barrel is pinched by the endless pivoting chain and the pinching rail and conveyed backward.

  The ear tip locking and conveying device 47 includes an endless turning chain 57 with a locking projection wound around a plurality of sprockets, and a tip guide plate 58 for guiding while placing the tip end of the cutting grain weir (see FIG. 4). And FIG. 5). The endless pivoting chain 57 is provided with a locking projection 59 at a predetermined pitch, and the endless pivoting chain 57 is pivoted so as to lock the tip end of the reaping grain casket, and at the tip of the reaping grain casket While being guided by the tip guide plate 58 and transported to the left rear. The rear end side endless rotating body 47B, which is the second half of the ear tip locking and conveying device 47, is configured to carry out the ear tip side locking and conveying with respect to eight rows of reaping grain weirs joined at the merging point.

  The second intermediate conveyance unit 42 conveys the second row of reaping grain pod scraped by the second scraping portion 40 (40B) from the right end toward the rear side merge point while holding the stock origin An intermediate stock source holding and conveying device 61, and a second intermediate ear tip engaging and conveying device 62 for conveying toward the rear side merging point while engaging and conveying the tip side of two rows of harvest grain weirs are provided.

  The second intermediate stock origin holding conveyance device 61 is configured in the same manner as the first stock origin holding conveyance device 53. The second intermediate ear tip locking and conveying device 62 includes an endless pivoting chain with a locking projection wound around a plurality of sprockets, and the tip end side of the reaping grain casket is rotated by the rotation of the endless pivoting chain. Transport backward while locking.

  The third intermediate transport unit 43 transports the second row of reaping grain gravel scraped in by the third scraping portion 40 (40C) from the right end, while conveying it toward the junction on the rear side An intermediate stock source holding conveyance device 67 and a third intermediate ear tip holding conveyance device 68 that conveys the tip side of two rows of reaping grain caskets while conveying it toward the rear side.

  The third intermediate stock origin holding conveyance device 67 is configured in the same manner as the first stock origin holding conveyance device 53. The third middle ear tip retention transport device 68 is configured in the same manner as the second middle ear tip retention transport device 62.

  The fourth intermediate transport unit 44 transports a second intermediate stock to the rear side while holding the stock origin of two rows of reaping grain gourd scraped by the leftmost scraping portion 40 (40D) The original holding and conveying device 74 is provided. This fourth intermediate stock origin holding conveyance device 74 is configured in the same manner as the first stock origin holding conveyance device 53.

  The left side confluence conveyance unit 45 inherits the harvesting grain casket conveyed by the fourth intermediate conveyance unit 44, and carries out the left side confluence stock source holding conveyance device 77 which conveys toward the rear side confluence location while holding the stock origin. And a left-hand-joining-point-earliers-conveying device 78 for conveying toward the rear-side merging point while engaging and conveying the ear tip side of the harvesting grain weir.

  The left-hand side merging stock holding and conveying apparatus 77 is configured in the same manner as the first stock holding and conveying apparatus 53. The left confluence ear tip retention transport device 78 is configured in the same manner as the second intermediate ear tip retention transport device 62.

  The second reaper 2L is cut away by the fourth intermediate conveyance portion 44, which is a conveyance carrier for the second reaper 2L side, and the left junction conveyance portion 45, which is a conveyance body for a confluence on the first reaper 2R side. A merging conveyance unit 120 configured to convey the reaping grain crusher to the merging point is configured.

  The feeding and conveying unit 46 is conveyed by the first intermediate conveying unit 41, the second intermediate conveying unit 42, the third intermediate conveying unit 43, and the left side merging and conveying unit 45, and is the stock origin of the reaping grain casket joined at the joining location Conveying device 84 for pinching and conveying toward the threshing feed chain 8, and a delivery / supply device 85 for delivering the reaping grain crib from the conveying device 84 for the handling depth to the start end of the threshing feed chain 8 Is equipped.

  The handling depth conveying device 84 and the delivery / supply device 85 are both configured in the same manner as the first stock source holding and conveying device 53.

  Although not shown, the threshing depth transport device 84 is swingably supported so that the transport end side moves in the hook length direction with the transport start end side as a fulcrum, By changing the position in the vertical direction), the penetration depth to the threshing device 6 can be changed and adjusted.

  The transport device 13 is divided into a right side transport portion 13R provided in the first reaper portion 2R and a left side transport portion 13L provided in the second reaper portion 2L, and as shown in FIG. The scraping unit 40, the first intermediate conveyance unit 41, the second intermediate conveyance unit 42, the third intermediate conveyance unit 43, the left side merging conveyance unit 45, and the supply conveyance unit 46 correspond to the right conveyance unit 13R, The four intermediate conveyance units 44 and the leftmost scraping unit 40 correspond to the left conveyance unit 13L.

[Mowing frame]
Next, the mowing frame F will be described.
As shown in FIGS. 14 to 19, the cutting frame F is configured by connecting a plurality of frames as described below. In the reaper frame F, a portion belonging to the first reaper 2R is a first frame FR, and a portion belonging to the second reaper 2L is a second frame FL.

  The reaper frame F is provided with a cylindrical support frame 91 oriented in the front-rear direction for supporting the entire reaper 2. In the support frame 91, a laterally oriented pivot portion 92 provided on the base end side of the rear upper portion is rotatably supported by a support base 90 on the airframe side about the transverse axis P1. The support frame 91 extends from the support base 90 toward the front lower side of the airframe 1. The support frame 91 is disposed substantially at the center in the left-right direction of the cutting frame F.

  A cylindrical lower lateral frame 93 extending in the left-right direction, that is, in the cutting direction, is connected to the front end of the support frame 91. A cylindrical weighing frame 94 extending forward of the airframe 1 is connected to each end of the lower horizontal frame 93. A rectangular cylindrical cutting blade support frame 95 extending in the cutting width direction is bridged between the front and rear middle portions of the two sorting frames 94. The cutting device 12 is supported by the cutting blade support frame 95.

  Between the two branching frames 94, seven branching frames 94 are provided at intervals. The plurality of branching frames 94 provided at intervals are disposed in a cantilever posture in which the rear end portion is connected to the cutting blade supporting frame 95. At the front end of these nine weighing frames 94, a weighing tool 10 is provided.

  At the right end of the lower horizontal frame 93, a cylindrical right vertical frame 97 extending generally upward on the front of the airframe 1 is connected, and at the left end of the lower horizontal frame 93, generally forwardly on the front of the airframe 1 An extending cylindrical left vertical frame 96 is connected.

  An upper horizontal frame 98 extending in the cutting direction is connected to the upper ends of the two vertical frames 96 and 97. The upper lateral frame 98 extends in the left-right direction over the upper ends of the eight raising devices 11.

  As shown in FIGS. 17 and 18, a cylindrical middle vertical frame 99 is extended upward from the left end side of the right side portion 93R of the lower horizontal frame 93 belonging to the first frame FR side. The middle vertical frame 99 is raised to a height capable of bypassing the transport device 13 provided in the reaper 2, bent from there horizontally right, and then bent forward and upward and connected to the upper horizontal frame 98 . A gear transmission mechanism 111 is provided at a portion of the middle vertical frame 99 bent forward and upward.

  Each of the eight raising devices 11 is connected at its upper end to the upper lateral frame 98 and at its lower end to the separating frame 94. Therefore, each raising device 11 also functions as a frame member that connects the upper lateral frame 98 and the branching frame 94 in the connected state.

  Each raising device 11 is supported so as to be rotatable relative to the upper lateral frame 98 integrally with the relay transmission case 21 about the lateral axis. Therefore, when the connection to the sorting frame 94 is released, the entire raising device 11 can be turned around the lateral axis, and the front part of the reaper 2 can be largely opened.

  When the front portion of the reaper 2 is in an open state, a load is applied to the upper sideward frame 98. Therefore, in order to ensure the rigidity of the reaper 2, as shown in FIG. 17 to FIG. 19, a plurality of vertically oriented auxiliary connecting rods 100 are provided, which connect the upper horizontal frame 98 and the branching frame 94.

  Furthermore, in order to ensure the rigidity of the reaper 2, the upper detour frame 101 connecting the upper end portion of the support frame 91 and the middle portion in the left-right direction of the upper horizontal frame 98 is provided. A raising support frame 102 is provided which connects the vicinity of the upper end of the rising portion of the middle vertical frame 99 of the middle vertical frame 99 and the center slightly leftward in the left-right direction of the upper horizontal frame 98.

  The raising support frame 102 extends rearward and upward from a bracket provided in the vicinity of the upper end of the rising portion of the middle vertical frame 99, then rises therefrom and extends forward similarly to the upper bypass frame 101 in side view, Its tip is connected to the upper lateral frame 98.

  The cutting frame F is configured by connecting a plurality of types of frames as described above. In this cutting frame F, a side view of the airframe 1 is provided with a branching frame 94 located at both ends in the left and right direction, vertically oriented frames 96 and 97 at the left and right, and a raising device 11 located at both ends in the left and right direction. Are arranged and connected in a substantially triangular shape. As a result, a strong support structure is formed at both ends in the left-right direction.

[Mowing section attachment and detachment structure]
In order to make the second reaper 2L removable with respect to the first reaper 2R, the lower horizontal frame 93, the cutting blade support frame 95, and the upper horizontal frame 98 can be separated from each other at the boundary L in order to make the second rear 2R removable. Is configured.

  As shown in FIG. 14 to FIG. 19, in each of the first frame FR on the side of the first cutting unit 2R and the second frame FL on the side of the second cutting unit 2L, an upper horizontal frame 98 and A rectangular cylindrical connecting frame 121, 122 extending in the vertical direction is provided across the frame 94.

  As shown in FIGS. 17 and 18, the connecting frame 121 provided in the first frame FR on the side of the first reaper 2R is the seventh from the right end of the right side portion 98R of the upper horizontal frame 98 and the seventh from the right end. It is connected across the separating frame 94. The connecting frame 121 is inclined rearwardly and generally parallel to the front surface of the raising case 14 of the raising device 11 in a side view, but the lower side is bent so as to bypass the weighing tool 10. It is in the shape of retreating.

  As shown in FIG. 14, FIG. 15 and FIG. 16, the connecting frame 122 provided in the second frame FL on the side of the second reaper 2L includes the right end portion of the left portion 98L of the upper horizontal frame 98 and the lower horizontal direction. It extends from the frame 93 to the front of the airframe 1 and extends in the front-rear direction support rod 123 located slightly above the seventh weighing frame 94 from the right end so as not to step on the cropped rice bowl. Are connected. The front end portion of the front and rear support rods 123 and the upper horizontal frame 98 have support strength with respect to the connecting frame 122 by the vertical auxiliary connecting rods 124.

  Similarly to the coupling frame 121, the coupling frame 122 is also inclined upward and generally parallel to the front surface of the raising case 14 of the raising device 11 in a side view. It is bent and retracted to bypass the

[Front connection part]
The coupling frames 121 and 122 are provided with a front coupling portion 200 that couples the first cutting unit 2R and the second cutting unit 2L in a detachable manner at the boundary L.

  As shown in FIG. 17, FIG. 18 and FIG. 22, in the connecting frame 121 belonging to the first frame FR side, the upper right middle boss 201, right middle boss 202 and right lower 203 are provided.

  The right upper boss portion 201 is configured such that the periphery of one cylindrical member 201A disposed in front of the coupling frame 121 is wound by a single flat plate portion 201B.

  The right central boss portion 202 is two cylinders arranged at the front and the rear of the connecting frame 121 with an interval sufficient to sandwich and arrange a cylindrical member 205A of the left central boss portion 205 described later with appropriate play. The periphery of the member 202A is configured to be wound by a single flat plate member 202B. The flat plate member 202B is configured such that a portion corresponding to the space between the upper and lower cylindrical members 202A is cut out. The lower right boss portion 203 is configured in the same manner as the right central boss portion 202.

  The cylindrical members 201A, 202A, and 203A are arranged such that the axes of the through holes 201C, 202C, and 203C, respectively, coincide with each other.

  As shown in FIG. 14, FIG. 15, FIG. 16 and FIG. 22, the connection frame 122 belonging to the second frame FL side is provided with a left upper boss 204 at a position corresponding to the right upper boss 201; A left center boss 205 is provided at a position corresponding to the right center boss 202, and a left lower boss 206 is provided at a position corresponding to the right lower boss 203.

  The left upper boss portion 204 is composed of a cylindrical member 204A provided on a driven member 303 described later.

  The left central boss portion 205 is configured to support one cylindrical member 205A at the front right side of the coupling frame 122 by an L-shaped bracket 205B in a front view. The lower left boss portion 206 is configured in the same manner as the left central boss portion 205.

  The cylindrical members 204A, 205A, and 206A are arranged such that the axes of the through holes 204C, 205C, and 206C, respectively, coincide with one another, and are predetermined for connecting the first frame FR and the second frame FL to each other. When arranged at the positions, they are also arranged to coincide with the axial centers of the through holes 201C, 202C and 203C of the cylindrical members 201A, 202A and 203A.

  As shown in FIG. 22, the cylindrical member 204A of the upper left boss portion 204 is disposed on the cylindrical member 201A of the upper right boss portion 201, and the through hole 201C and the through hole 204C are penetrated as a inserting member. By inserting the bolt 207 and screwing the nut 208 to the tip end of the bolt 207, the upper right boss portion 201 and the upper left boss portion 204 are connected.

  The cylindrical member 205A of the left central boss 205 is disposed between the two cylindrical members 202A of the right central boss 202, and the nut 208 is screwed into the tip of the bolt 207 so as to penetrate the through hole 202C and the through hole 205C. Thus, the right central boss 202 and the left central boss 205 are connected.

  Similarly, a cylindrical member 206A of the lower left boss portion 206 is disposed between two cylindrical members 203A of the lower right boss portion 203, and a nut 208 is attached to the tip of the bolt 207 so as to penetrate the through hole 203C and the through hole 206C. By screwing together, the lower right boss portion 203 and the lower left boss portion 206 are connected.

  However, the driven member 303 is not an essential component for making the second reaper 2L removable from the first reaper 2R, and similarly, the upper right boss 201 and the upper left boss 204 are required. It is not a configuration. Therefore, at least the right central boss 202 and the lower right boss 203 are the first boss according to the present invention, and the left central boss 205 and the left lower boss 206 are the second boss according to the present invention. The first boss portion, the second boss portion, and the bolt 207 as an insertion member constitute a front connecting portion. The connection of the connecting frame 121 and the connecting frame 122 makes it impossible to separate the second cutting unit 2L from the first cutting unit 2R in front of the cutting unit 2.

  In the embodiment described above, although the case where the nut 208 for securing is screwed to the bolt 207 has been described, a shaft-like member having a head is used as the insertion member, and the split pin is attached to this tip It may be a configuration.

[Rear connection part]
As shown in FIGS. 23 to 25, the lower sideward frame 93 is divided into a right side portion 93R belonging to the first frame FR side and a left side portion 93L belonging to the second frame FL side at the boundary L. The 93R and the left side portion 93L are provided with a rear connecting portion 210 that connects the first reaper 2R and the second reaper 2L in a detachable manner.

  Behind the left end of the right side portion 93R, a right rear boss portion 211 is provided. The right rear boss portion 211 is composed of two flat members 211A arranged in parallel with an interval sufficient to sandwich and arrange the flat plate member 212A of the left rear boss portion 212 described later with appropriate play. The axial centers of the through holes 211C that each has are arranged to coincide with each other. The axial center of the through hole 211C is provided, for example, in parallel with the axial center of the through hole 202C of the cylindrical member 202A.

  A left rear boss 212 projecting rightward from the rear of the right end of the left portion 93L is provided. The left rear boss portion 212 is formed of a flat plate member 212A which can be sandwiched between the upper and lower two flat plate members 211A of the right rear boss portion 211. The flat plate member 212A is provided with a through hole 212C which is coaxial with the through hole 211C when inserted between the flat plate members 211A.

  As shown in FIG. 23, the right side portion 93R and the left side portion 93L are connected by inserting the shaft-like portion 213A of the insertion member 213 so as to penetrate the through hole 211C and the through hole 212C.

  That is, the right rear boss portion 211, the left rear boss portion 212, and the insertion member 213 constitute a rear connection portion. The connection of the right side portion 93R and the left side portion 93L makes it impossible to separate the second reaper 2L from the first reaper 2R at the rear of the reaper 2.

  In the insertion member 213, the operation portion 213B is extended in a direction that intersects the insertion direction of the right rear boss portion 211 and the left rear boss portion 212 of the shaft portion 213A.

  The retaining member 214 is formed of a flat plate member screwed to the right end of the left side portion 93L, and the flat plate member extends rearward from the screwing portion and has a rear end slightly bent downward. .

  The retaining member 214 is in contact with the surface of the operation portion 213B opposite to the insertion direction of the shaft portion 213A, and the insertion member 213 is inserted through the right rear boss portion 211 and the left rear boss portion 212 of the shaft portion 213A. Movement in the direction opposite to the direction is easily restricted.

  When the insertion member 213 is attached to the right rear boss portion 211 and the left rear boss portion 212, a coil spring 215 as urging means is interposed between the right rear boss portion 211 and the operation portion 213B. There is. The insertion member 213 is biased by the coil spring 215 in the direction in which the operation portion 213B abuts the retaining member 214, and hence is biased in the direction opposite to the insertion direction.

  Therefore, the operation portion 213B of the insertion member 213 is rotated about the axis of the shaft-like portion 213A, and moved from the retaining restriction position in contact with the retaining member 214 to the retaining release position not in contact with the retaining member 214. Even if it does, the operation part 213B is caught at the bending point of the rear end of the retaining member 214. As described above, the operation portion 213B is prevented from unintentionally moving from the detachment prevention position to the detachment release position.

  In order to change the position of the operating portion 213B from the locking restricted position to the locking release position, the operating portion 213B is moved in the insertion direction of the shaft-like portion 213A against the biasing force of the coil spring 215. Thus, the operating portion 213B can be moved from the locking position to the locking release position without being hooked to the bent portion of the rear end of the locking member 214, and the shaft portion 213A of the insertion member 213 can be It can be extracted from the boss portion 211 and the left rear boss portion 212, and the connection between the right portion 93R and the left portion 93L is released.

  The reaping frame F of the reaping unit 2 includes a branching frame 94 located at both ends in the left-right direction, vertically oriented frames 96 and 97 at the left and right, and a raising device 11 located at both ends in the left-right direction. Since they are arranged and connected in a substantially triangular shape in a side view of the airframe 1, even if the reaper 2 is separated at the boundary L, a strong frame is formed in each of the first reaper 2R and the second reaper 2L. A structure is formed, and it has a structure which has supporting strength.

[Lower connecting part]
As shown in FIG. 23 to FIG. 25, the cutting blade support frame 95 is divided at the boundary L into a right side portion 95R belonging to the first frame FR side and a left side portion 95L belonging to the second frame FL side. The lower connecting portion 220 is provided in the portion 95R and the left portion 95L.

  As the lower connecting portion 220, in the present embodiment, the left side portion 95L is provided with a cylindrical member 95A which can be inserted into the right side portion 95R. The cylindrical member 95A generally has an outer diameter capable of circumscribing the inner surface of the right side portion 95R, and is configured to have a slightly reduced diameter at the insertion tip side with respect to the right side portion 95R.

  When the first reaper 2R and the second reaper 2L are separated, the cylindrical member 95A is pulled out from the right side 95R as the left side 95L separates, and the first reaper 2R and the second reaper 2L When connected, the cylindrical member 95A is inserted from the right side portion 95R with the proximity of the left side portion 95L. By inserting the cylindrical member 95A into the right portion 95R, the right portion 95R and the left portion 95L can integrally support the load.

  The lower connecting portion 220 is not limited to the above-described configuration, and a prismatic member may be provided instead of the cylindrical member 95A.

  As described above, the reaper 2 can remove the second reaper 2L from the first reaper 2R by releasing the connection in the front connection 200 and the rear connection 210.

  When removing the second reaper 2L, a truck is disposed at the bottom of the second reaper 2L, and the connection in the front connection 200 and the rear connection 210 is released. Thus, the connection between the second reaper 2L and the first reaper 2R is released, and the second reaper 2L can be removed by moving the carriage. The attachment of the second reaper 2L to the first reaper 2R is performed in the reverse procedure. As described above, the second reaper 2L of the reaper 2 is removable from the first reaper 2R by moving it in the left-right direction.

  In addition, it is also possible to change to a trolley | bogie and to use a jack and an exclusive stand as a structure which supports the 2nd reaper part 2L. In this case, the combine is moved to relatively move the second reaper 2L relative to the first reaper 2R in the left-right direction.

  The left-right direction is a direction in which the first reaper 2R and the second reaper 2L are aligned, and therefore, is a horizontal direction when the combine is in a horizontal field. The second reaper 2L is a play of the front connecting portion 200 and the rear connecting portion 210 relative to the first reaper 2R, for example, the two cylindrical members 202A of the right center boss 202 and the left center boss 205 It can be moved up and down as much as the play with the cylindrical member 205A. Therefore, the left-right direction in which the 2nd mowing part 2L moves includes a diagonal direction.

  In addition, even if the second reaper 2L is attached to the first reaper 2R (see FIG. 6), the second reaper 2L is removed from the first reaper 2R even if the second reaper 2L is in a wide state (see FIG. 6) Even in the state (see FIG. 31), mowing work is possible.

  Even if the reaper 2 is in a wide state (see FIG. 6) or in a narrow state (see FIG. 31), the cutting width is wider than the traveling width W of the left and right traveling devices 4 and The traveling width W of the left and right traveling devices 4 with respect to the machine body 1 is provided at such a position as to fall within the cutting width. The cutting width is the sum of the right treading space TR, the travel width W and the left treading space TL.

  When the reaper 2 is in a narrow state, the right treading margin TR is about 165 mm as described above, while the left treading margin TL is about 5 mm. As described above, even in the narrow state, by securing the left treading margin TL as the treading margin on the left side of the traveling device 4, there is no risk of stepping on the uncut grain pod by the traveling device 4 on the left side.

[Transmission structure]
Next, based on FIG. 8, the power transmission structure of the reaper 2 will be described.
The airframe 1 is provided with an engine (not shown) as a power source, and the pivot portion of the support frame 91 after the power output from the engine is shifted by a cutting stepless transmission (not shown). It is transmitted to a transverse transmission shaft 103 provided inside the 92. Then, from the sideways transmission shaft 103 to the sideways input shaft 105 provided inside the lower sideways frame 93 of the reaper 2 via the power transmission shaft 104 as a front-down driving shaft provided inside the support frame 91. It is transmitted. As shown in FIGS. 9 and 10, the power transmission shaft 104 is disposed substantially at the center in the left-right direction of the reaper 2, and the power transmitted from the power transmission shaft 104 is substantially the same in the left-right direction of the input shaft 105. Input in the center.

  The power transmitted to the input shaft 105 is transmitted to the right cutting portion 12R of the cutting device 12 through the branched portion 106 provided in the vicinity of the left end of the left and right end portions of the input shaft 105 and the right end 93R of the lower horizontal frame 93. It is respectively transmitted to the two sets of cutting blades 25 belonging to it and the pair of cutting blades 38 belonging to the left side cutting portion 12L.

  The power transmitted to the input shaft 105 is a vertical transmission shaft provided inside the vertical frame 96 via a branch portion 107 provided near the left end of the right side portion 93R of the lower horizontal frame 93 in the input shaft 105. It is transmitted to 109. The power transmitted to the vertical transmission shaft 109 is transmitted to the left side merging conveyance part 45 via the branch part 108 provided in the middle of the vertical transmission shaft 109.

  The power transmitted to the input shaft 105 is transmitted to the fourth intermediate conveyance unit 44 via the branch unit 110 provided on the left end side of the input shaft 105, and the scraping on the leftmost side via the fourth intermediate conveyance unit 44 It is transmitted to the insertion part 40 (40D).

  A power transmission shaft is provided for each of the three sets of scraping portions 40 (40A to 40C) located on the right side, the first intermediate conveyance unit 41, the second intermediate conveyance unit 42, the third intermediate conveyance unit 43, and the supply conveyance unit 46. Power is transmitted from an intermediate portion of the transmission of 104.

  As shown in FIG. 8, power is split and transmitted to the third branch transmission shaft 118 and the fourth branch transmission shaft 119 at the second branch portion 117 provided in the transmission middle portion of the power transmission shaft 104, and the third branch transmission shaft The power is transmitted from 118 to the first stock origin holding conveyance device 53 of the first intermediate conveyance unit 41, and the power of the first stock origin holding conveyance device 53 is transmitted to the rightmost scraping portion 40 (40A). The power is transmitted from the lateral transmission shaft 103 to the endless rotating chain 57 in the tip-end locking transport device 47, and the power is transmitted from the fourth branch transmission shaft 119 to the handling depth transport device 84.

  Power is branched and transmitted to the first branch transmission shaft 113 at the first branch portion 112 provided in the transmission middle portion of the power transmission shaft 104, and the second intermediate stock of the second intermediate conveyance portion 42 from the first branch transmission shaft 113. Power is transmitted to the original pinching and conveying device 61 and the second intermediate ear tip locking and conveying device 62. And the motive power of the 2nd intermediate stock origin holding conveyance device 61 is transmitted to the 2nd scraping part 40 (40B) from the right side.

  Power is split and transmitted from an intermediate portion of the first split transmission shaft 113 to the second split transmission shaft 114, and the third intermediate stock source holding transport device 67 and the third intermediate of the third intermediate transport section 43 from the second split transmission shaft 114 Power is transmitted to the ear tip locking transport device 68. And the motive power of the 3rd intermediate stock origin holding conveyance device 67 is transmitted to the 3rd scraping part 40 (40C) from the right end.

  Therefore, the three sets of scraping portions 40 (40A to 40C) located on the right side are driven by the power from the power transmission shaft 104 which is the same transmission shaft, and one set of scraping portions on the leftmost side The 40 (40D) is driven by the power transmitted from the power transmission shaft 104 via the input shaft 105.

  The upper lateral frame 98 is provided with a raising drive shaft 20 for transmitting power to each raising device 11 in the state of covering the entire width in the left-right direction. The power from the vertical transmission shaft 109 is shifted by the gear transmission mechanism 111 and then transmitted to the drive shaft 20. Power is transmitted from the raising drive shaft 20 to each of the eight raising devices 11.

[Drive shaft connection structure]
Next, the transmission shaft connection structure will be described.
As shown in FIG. 8, the input shaft 105 provided inside the lower horizontal frame 93 and the raising drive shaft 20 provided at the lower part of the upper horizontal frame 98 respectively generate power from the power source, In a portion belonging to the first power transmission mechanism DR to be transmitted to the raising device 11 and the like provided to the reaper 2R and a second power transmission mechanism DL to be transmitted to the raising device 11 and the like provided to the second reaper 2L It is divided into parts to which it belongs, and is configured to be able to transmit power via joint mechanisms 105C and 20C that can be connected and separated at division points.

  As shown in FIG. 23, FIG. 24 and FIG. 25, when the left side portion 105R and the right side portion 105L are butted, the joint mechanism 105C is engaged in the butt direction and the power transmission state is established. It consists of a meshed clutch of known construction, which, when pulled apart, causes the engagement to be pulled off and into a non-powered state.

  As shown in FIG. 26, the raising drive shaft 20 includes a right portion 20R (hereinafter referred to as a power transmission shaft 20R) belonging to the first power transmission mechanism DR and a left portion 20L belonging to the second power transmission mechanism DL ( Hereinafter, the power receiving shaft 20L is configured to be able to transmit power via the coupling mechanism 20C which can be connected and separated.

  The coupling mechanism 20C is screwed to an internal thread provided at the left end of the power transmission shaft 20R having a hexagonal cross-sectional shape, and has a bottomed cylindrical shape configured to be able to receive the right end of the power transmission shaft 20L. The receiving portion 20B and the right end portion of the power receiving shaft 20L having a hexagonal cross-sectional shape as well are provided with two insertion portions 20P radially protruding from the power receiving shaft 20L.

  The receiving portion 20B is provided with a notch 20K capable of inserting the insertion portion 20P provided on the power receiving shaft 20L side along the axis of the power receiving shaft 20L, and the receiving portion 20B and the insertion In the portion 20P, when the power transmission shaft 20R and the power transmission shaft 20L are butted, the insertion portion 20P is engaged with the notch 20K of the receiving portion 20B to be in a power transmission state, and the power transmission shaft 20R and the power transmission are transmitted. When the shaft 20L is pulled apart, the fitting is pulled off and the power is not transmitted.

  Accordingly, when the second reaper 2L is removed from the first reaper 2R, the input shaft 105 and the raising drive shaft 20 are jointed as the lower horizontal frame 93 and the upper horizontal frame 98 are separated at the connection location. It is automatically separated by the mechanisms 105C and 20C and is in the non-power transmission state. When the second reaper 2L is attached to the first reaper 2R, the input shaft 105 and the raising drive shaft 20 are automatically connected by the joint mechanisms 105C and 20C to be in a power transmission state.

[Another embodiment]
(1) In the embodiment described above, in the combine with eight-rows, the second reaper 2L corresponding to the left two rows in the reaper 2 and the other first reaper 2R corresponding to the remaining six rows are divided. However, the present invention is not limited to such a configuration, and the first reaping portion corresponding to the four reeds positioned between the second reaping portion 2L and the second reaping portion 2L, respectively, with the two left ends and the second end of the right end. It is good also as composition removable to 2R. The second reaper 2L is not limited to two, and may be configured in one or three or more as long as the non-operation return paths H2 are adjacent to each other.

(2) In the embodiment mentioned above, although the eight-row cutting combine was shown, seven-row cutting, eight-row cutting, etc. may be sufficient, and the number of cutting lines is not limited to eight.

  The present invention can be applied to a combine having a large number of cutting lines such as eight-row cutting.

DESCRIPTION OF SYMBOLS 1: Aircraft body 2: Reaper 2L: Second harvester 2R: First harvester 4: Traveling device 11: Raising device 12: Cutting device 13: Conveying device 19: Raising claw 20: Raising driving shaft H1: Raising Action path L: Boundary W: Driving width

Claims (4)

It is a combine equipped with a reaper for reaping a plurality of rows of planted grain weirs at the front of the vehicle body, and the vehicle body is equipped with left and right traveling devices,
The reaper is provided with a plurality of raising devices corresponding to at least the number of reapering strips, a cutting device for cutting the stock origin of the planted rice bran, and a transport device for transporting the reaped corn kernel toward the rear of the machine;
A plurality of the raising devices provided with a raising action path in which the raising claws move in a projecting state, and a non-action return path in which the raising claws move in a withdrawn state;
The reaper is divided into a first reaper and a second reaper at a boundary between adjacent ones of the plurality of raising devices adjacent to each other in a state where the non-operation return paths are close to each other.
In the widening state in which the second reaper is attached to the first reaper while the second reaper is configured to be attachable to and detachable from the first reaper Mowing work is possible even in any state of the narrow state where the part is removed from the first mowing part,
Both the cutting width in the wide state and the narrowing state are wider than the traveling widths of the left and right traveling devices,
The combine harvester is provided at a position where the travel width of the left and right travel devices falls within the cutting width with respect to the machine body. A forward and downward drive shaft is provided for transmitting power from a power source provided to the machine body to the reaper;
2. The combine according to claim 1, wherein the drive shaft is disposed at the center of the reaper in the lateral direction when in the wide state. The drive shaft is configured to transmit a power from the drive shaft to the raising device, the cutting device, and the transport device, and the cutting drive shaft extends in the cutting width direction of the cutting portion at the front end of the drive shaft. Interlocked with
The lift drive shaft is interlockingly connected to the reaper drive shaft such that a lift drive shaft for transmitting power from the reaper drive shaft to the lift device extends vertically.
3. The combine according to claim 2, wherein the raising drive shaft is provided at the rear of the raising device at an end of the first cutting unit on the side of the boundary with the second cutting unit.   The combine according to any one of claims 1 to 3, wherein the reaper is configured to be removable from the first reaper by moving the second reaper in the left-right direction.

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