JP5882853B2 - Combine - Google Patents

Description

  The present invention relates to a combine, and in particular, to a combine that can improve the transportability of the cereals harvested by the harvesting unit to the threshing unit.

  Conventionally, there exists a combine disclosed by patent document 1 as one form of a combine. That is, in Patent Document 1, a plurality of cereal grains planted in a field are harvested by a harvesting part attached in front of the traveling machine body, and the harvested grain straws are threshed by a threshing part disposed on the traveling machine body. The combine comprised in 1 is disclosed. And the clipper type cutting blade device that cuts the stock of multiple cereals is arranged in the left and right direction in the cutting part, and a cylindrical transmission case that extends in the left and right direction behind the cutting blade device is provided. It arrange | positions and the cylinder is rotatably fitted in the outer peripheral surface of a transmission case. Moreover, the cereal conveyance apparatus is arrange | positioned from the position right above a cutting body to the position near the traveling body.

  It is possible to thresh the cereals at the threshing part of the traveling machine body, configured in this way, by holding the cereal grains that have been harvested by the cutting blade device and passing them to the traveling machine body side. I am doing so. At this time, the stock holder of the corn straw that is sandwiched and conveyed by the corn straw conveying device interferes with the upper peripheral surface of the cylinder and rotates the cylinder. Therefore, mud with a high water content adhering to the root of the culm, wet leaf sheath (so-called “hama”) mixed in between the cereals, cereal that was missed by the culm transporting device, and Even if weeds or the like (hereinafter referred to as “mud etc.”) are dropped on the upper peripheral surface of the cylinder, they are dropped on the field by the rotation of the cylinder. As a result, mud or the like does not accumulate in the shape of the transmission case, and it does not become a conveyance resistance of the cereal bowl to which the mud or the like is conveyed.

Japanese Utility Model Publication No. 4-34670

  However, the field scene where cereals are planted is not necessarily flat and has a convex surface, so when the lower peripheral surface of the cylindrical body interferes with this convex surface, the cylinder is rotated by the cereal. May be rotated in the opposite direction. That is, the rotation direction of the cylinder when rotating by interfering with the convex portion of the field is opposite to the rotation direction in which the cylinder is rotated by the root of the cereal seeds interfering with the upper peripheral surface of the cylinder ( (The opposite direction), the cylinder may not be sufficiently rotated or may not be rotated. Therefore, the mud fallen on the cylinder body may accumulate, and it may become the conveyance resistance of the cereal mash in which these deposits are conveyed. That is, in the structure of the above-mentioned Patent Document 1, there is a problem that the transportability of the cereal is not ensured satisfactorily.

  Moreover, since the stock source of the cereals interferes with the upper peripheral surface of the cylinder, the transport posture of the cereals to be transported may be disturbed, and the subsequent threshing work efficiency may be adversely affected.

  Therefore, an object of the present invention is to provide a combine that can prevent the accumulation of mud and the like regardless of the levelness of the farm scene and can ensure a good conveying posture of the cereal.

The combine according to the invention described in claim 1 is a cutting blade device for cutting a plurality of grain culms planted in a field, while the cutting unit is attached to the front of the traveling machine body so that the cutting unit can be turned up and down freely. A combine case comprising: a transmission case that transmits power to the cutting blade device; and a cereal conveyor device that is disposed above the transmission case and that transports cereals cut by the cutting blade device to the rear, wherein the transmission case is It is formed by extending in the left-right width direction, and an accumulation prevention body such as mud that extends along the transmission case and covers the front and upper peripheral surfaces of the transmission case is arranged in front of the transmission case, and mud accumulation The prevention body pivotally supports the middle part of the front-rear width so as to be swingable about the axis in the left-right direction, and when mud or the like dropped from the culm is attached below the cereal conveyed by the cereal conveying device There is no interference with cereals, especially in the pivot Characterized in that so as to shake off the swing has been deposited with mud.

  In such a combine, a sediment prevention body such as mud covering the front peripheral surface and the upper peripheral surface of the transmission case is arranged below the grain straw transported by the grain transport device, and the sediment prevention body such as mud is of a front and rear width. The middle part is pivotably supported around the axis in the left and right direction, and when mud falling from the culm adheres to the sediment prevention body such as mud, it does not interfere with the cereal with the pivot part as the center. Since the rocking part is moved up and down, an inertial force acts on the mudstone accumulation preventing body and an impact is applied to the mud sediment accumulation preventing body. Therefore, the mud and the like adhering to the sediment prevention body such as the mud are shaken down steadily. Therefore, no mud or the like is deposited on the mud or other accumulation prevention body. That is, it is possible to prevent accumulation of mud or the like on the accumulation preventive body such as mud or the like regardless of the levelness of the farm scene. And since the accumulation prevention bodies, such as mud, are rock | fluctuated without interfering with a corn straw, the conveyance attitude | position of the corn straw conveyed by the corn straw conveying apparatus can be ensured favorably. In addition, the front and upper part of most of the transmission case can be covered and protected by the front and upper peripheral surfaces of the mud deposit prevention body, preventing mud soil from adhering and accumulating on the transmission case. can do. As a result, the trouble of cleaning the transmission case can be reduced.

  The combine according to the second aspect of the invention is the combine according to the first aspect of the invention, wherein the muddy soil accumulation preventing body is attached to the transmission case or the member connected to the transmission case in the cutting position of the cutting portion. The end balance comes into contact and takes a static posture, so that the mud etc. dropped from the grain cereal being transported adheres to the front side of the sediment prevention body such as mud, etc. It is characterized in that it can be swung around.

  In such a combine, when the mowing part is in the mowing position, the rear edge of the accumulation preventing body such as mud is brought into contact with the transmission case or a member connected to the transmission case to take a stationary attitude. And when mud etc. are dropped from the grain straw conveyed by the grain straw carrying device and the mud etc. adheres to the front part side of the sediment prevention body such as mud, the stationary balance of the sediment prevention body such as mud is destroyed. Thus, the front side is rotated downward around the pivotal support. At this time, if the cutting height is adjusted by slightly raising the cutting portion, the mud attached to the mud mud and the like is prevented from being deposited by the inertial force. In addition, when turning the aircraft, the cutting part is greatly raised, and in that case, the rear edge of the muddy soil accumulation prevention body is rotated rearward around the pivot part, and the transmission case Or, it may collide with a member connected to the transmission case. In this case, mud etc. adhering to the sediment prevention body such as mud due to the impact at the time of collision is shaken off. As a result, mud etc. can be prevented from accumulating on the mud sediment prevention body, and mud mud etc. can be prevented from adhering to and deposited on the transmission case by the mud sediment prevention body. .

  The combine which concerns on invention of Claim 3 is a combine which concerns on invention of Claim 1 or 2, Comprising: While deposit prevention bodies, such as a mud, are formed in the strip | belt shape extended in the left-right direction, a front peripheral surface and upper periphery The surface is formed into a convex arc shape in front view, and the middle part of the front and rear width is pivoted around the axis in the left-right direction at the tip of the support arm protruding forward from the transmission case. It is characterized by being swingable at the center.

  In such a combine, a sedimentation prevention body such as mud can be mounted on and supported by a transmission case in a lightweight and simple structure, so that it can swing and be supported, so that a smooth and steady swinging operation can be secured and the manufacturing cost is low. And can be

  The combine which concerns on invention of Claim 4 is a combine which concerns on invention of any one of Claims 1-3, Comprising: The cereal haul conveying apparatus joins the multiple cereals to one merging point A collective conveyance path that collectively conveys the cereals that have been merged at the merging point of the merging conveyance path to the traveling machine body, and disposed an accumulation prevention body such as mud at the lower position of the merging point It is characterized by.

  In such a combine, since a mud sediment prevention body is arranged at a position below the junction, the mud sediment accumulation prevention body is placed at a lower position where the stocks of the multiple mulch grains are collectively arranged. Can be rocked steadily. Therefore, the mud and the like that are collectively dropped on the sediment prevention body such as mud are steadily shaken off by the sedimentation prevention body that is swung. As a result, it is possible to prevent mud from accumulating on the sediment prevention body such as mud and further on the transmission case. Moreover, since the bundled multiple pieces of grain straws are transported without interfering with an accumulation prevention body such as mud, the grain posture of the grain straws is well maintained and the transportability can be ensured satisfactorily.

  According to the present invention, the following effects are exhibited. That is, the mud deposit prevention body to which mud or the like adheres during the lifting and lowering operation of the cutting part is swung without interfering with the cereal stocks around the pivot part, It is possible to provide a simple and inexpensive structure that does not require the provision of power means for swinging it. And the mud etc. adhering to the sediment prevention body such as mud is firmly shaken off when the sediment prevention body such as mud is rocked, and no mud etc. is deposited on the sediment prevention body such as mud. Therefore, it is possible to prevent accumulation of mud and the like on the accumulation preventive body such as mud and so on regardless of the levelness of the farm scene. Moreover, since the sediment prevention bodies such as mud do not interfere with the corn straw, the conveying posture of the corn straw is ensured satisfactorily.

The side view of the combine which concerns on this invention. Side surface explanatory drawing of a cutting part. Plane | planar explanatory drawing of the upper part side of the rake device of a cutting part, and a corn straw conveying apparatus. Plane explanatory drawing of the lower part side of the rake device of a reaping part, and the cereal conveyance apparatus. Plane explanatory drawing in the attachment state of accumulation prevention bodies, such as mud. II sectional view explanatory drawing of FIG. II-II sectional view explanatory drawing of FIG. III-III sectional view explanatory drawing of FIG. Explanatory drawing of the reaper harvesting of the harvesting part.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a seven-strike combine 1 according to the present invention. First, the overall configuration of the combine 1 will be described.

[Overview of overall structure of combine]
As shown in FIG. 1, the combine 1 includes a traveling machine body 3 having a pair of left and right traveling units 2 that can travel in the front-rear direction. In front of the traveling machine body 3, a harvesting part 4 that takes in grain crops while harvesting them is mounted so as to be adjustable up and down. A threshing unit 5 for threshing the cereals harvested by the mowing unit 4 is disposed on the upper left side of the traveling machine body 3. In the lower left part of the traveling machine body 3, a sorting unit 6 that sorts the processed product threshed by the threshing unit 5 is disposed. A driving part 7 for operating each part is disposed on the right front part of the traveling machine body 3. A grain tank 8 for storing the grains selected by the selection unit 6 is disposed at the right rear part of the traveling machine body 3. A discharge auger 9 that discharges the grain stored in the grain tank 8 to the outside is disposed at the right rear end of the traveling machine body 3.

[Description of the configuration of the cutting part]
Next, the configuration of the cutting unit 4 will be described in detail. That is, as shown in FIG. 2, the cutting unit 4 is configured by supporting the weeding body 11, the pulling device 12, the scraping device 13, the cutting blade device 14, and the cereal conveying device 15 on the cutting support machine frame 10. Yes. And power is transmitted to these apparatuses 12-15 from the motor | power_engine part (not shown) mounted on the traveling body 3 so that each apparatus 12-15 may operate | move suitably.

  The reaping support machine frame 10 includes first to sixth transmission cases 16 to 21 having a support function and a transmission function, left and right extension connection pieces 22 extending in the left-right direction, and a plurality of extension parts extending forward from the left and right extension connection pieces 22. A plurality of (8 in this embodiment) herbaceous body support pieces 23 that support (in this embodiment, 8) herbaceous bodies 11, and a first transmission case 16 and a fifth transmission case 20 that extend in the front-rear direction. The front-rear extension connecting piece 24 is interposed between the two.

  The first transmission case 16 is formed in a pipe shape extending in the left-right direction, and pivots around the axis in the left-right direction at the upper end portion of the cutting-part pivot support body 30 erected at the front end portion of the traveling machine body 3. I support. A first transmission shaft (not shown) is inserted into the first transmission case 16. The first transmission shaft is linked to a prime mover section (not shown) such as an engine provided in the traveling machine body 3 via a power transmission mechanism.

  The second transmission case 17 is formed in a pipe shape extending in the front-rear direction, and a base end portion (rear end portion) is connected to the right end portion of the first transmission case 16 in an orthogonal state. The second transmission case 17 is arranged in a downwardly inclined manner in the front lower direction, and an elevating cylinder 31 is interposed between the middle part of the second transmission case 17 and the front end of the traveling machine body 3. That is, the mowing unit 4 is rotated up and down via the second transmission case 17 in conjunction with the expansion and contraction operation of the elevating cylinder 31. A second transmission shaft (not shown) is inserted into the second transmission case 17 and the base end portion of the second transmission shaft is interlocked and connected to the first transmission shaft. Further, a front branch transmission case 25 and a rear branch transmission case 26 for transmitting power to the cereal conveying device 15 are branched in the middle of the second transmission case 17 and spaced upward in the front-rear direction. doing.

  The third transmission case 18 is formed in a pipe shape extending in the left-right direction, and the central portion is connected to the front end portion (front end portion) of the second transmission case 17 in an orthogonal state. A third transmission shaft 150 (see FIGS. 6 to 8) is inserted into the third transmission case 18, and a middle portion of the third transmission shaft 150 is interlocked and connected to the tip of the second transmission shaft.

  The fourth transmission case 19 is formed in a pipe shape extending in the vertical direction, and the lower end portion is connected to the left end portion of the third transmission case 18 in an orthogonal state. A fourth transmission shaft (not shown) is inserted into the fourth transmission case 19, and the lower end portion of the fourth transmission shaft is interlocked and connected to the left end portion of the third transmission shaft 150.

  The fifth transmission case 20 is formed in a pipe shape extending in the left-right direction, and the left end is connected to the upper end of the fourth transmission case 19 in an orthogonal state. A fifth transmission shaft (not shown) is inserted into the fifth transmission case 20 and the left end portion of the fifth transmission shaft is interlocked and connected to the upper end portion of the fourth transmission shaft.

  The sixth transmission case 21 is formed in a pipe shape extending in the vertical direction, and a plurality (seven in this embodiment) of upper end portions of the sixth transmission case 21 are formed in the left-right direction at the lower peripheral surface of the fifth transmission case 20. Are connected in an orthogonal state with an interval. A sixth transmission shaft (not shown) is inserted into each sixth transmission case 21, and the upper end portion of each sixth transmission shaft is linked to the fifth transmission shaft.

  The left and right extending connecting piece 22 is formed in a pipe shape having a square cross section extending in the left and right direction, and extends horizontally between the stays 38 and 38 protruding forward from the left and right end portions of the third transmission case 18. The left and right elongated connecting pieces 22 are attached to the base end portions (rear end portions) of the eight herb body support pieces 23 extending in the front-rear direction in a parallel state at intervals in the left-right direction. The weed bodies 11 are attached to the tip portions (front end portions) of the eight weed body support pieces 23, respectively. Each weeding body 11 is formed to taper forward, so that the cereals in the field are weeded for each line.

  The pulling device 12 tilts the first to seventh seven lifting cases 32 between the lower ends of the sixth transmission cases 21 and the weed body support pieces 23 facing each other in the vertical direction. The first to seventh pulling cases 32 are provided side by side in the left-right direction. Each pulling case 32 is formed in a vertically long rectangular shape that is flat in the front-rear direction and extends in the up-down direction, and supports a tine-attached chain (not shown) so as to drive the grain straws K1 to K7 after weeding. doing.

  That is, a certain interval is provided between the first pulling case 32 arranged on the rightmost side and the second pulling case 32 arranged on the left side thereof, and the grain corresponding to the two right-hand grains among the seven grains稈 (first grain culm K1 and second grain culm K2 counting from the right side, but in FIG. 3 only one strain is represented by one strain, but each grain culm in order from the right column K1 to K7 )). A certain interval is provided between the second pulling case 32 and the third pulling case 32 arranged on the left side thereof. This causes the grain grain K3). The third pulling case 32 and the fourth pulling case 32 arranged on the left side of the third pulling case 32 are arranged close to each other and hardly form a gap. A certain interval is provided between the fourth pulling case 32 and the fifth pulling case 32 disposed on the left side thereof, and among the seven halves of the cereal, the cereal halves for the middle two (4 counted from the right side). This causes the grain ridge K4 and the fifth grain ridge K5). The fifth pulling case 32 and the sixth pulling case 32 arranged on the left side of the fifth pulling case 32 are arranged close to each other and hardly form a gap. A certain interval is provided between the sixth pulling case 32 and the seventh pulling case 32 disposed on the left side of the sixth pulling case 32. This causes the grain ridge K6 and the seventh grain ridge K7).

  The scraping device 13 is arranged at the rear lower part of the pulling device 12 in a slanted shape such as front and rear, and is configured to scrape the stocks of the culm K1 to K7 caused by the pulling device 12. That is, as shown in FIG. 3, the scraping device 13 includes a first scraping body 33, a second scraping body 34, a third scraping body 35, and a fourth scraping body 36. These scavenging bodies 33 to 36 are arranged in an inclined shape with front and rear and rear heights with appropriate intervals in the left-right direction.

  The first scraped body 33 is composed of seven cereal grains, and two cereal grains for the right-hand side caused by the first and second pulling cases 32 and 32 (first cereal grain K1 and second cereal counting from the right side). The cereal stock of K2 The first scraper 33 is arranged on the rightmost side among the plurality of scrapers 33 to 36.

  The second scraping body 34 is one side of the left and right center side of the seven cereals of the cereals, and in this embodiment, the right side of the cereals (from the rightmost side). Counting the stock of the third grain cereal K3). The second scraping body 34 is disposed on the left side of the first scraping body 33 on the left and right center side among the plurality of scraping bodies 33 to 36.

  The third scraped body 35 is the remaining two of the three left and right central sides caused by the fourth and fifth pulling cases 32, 32 of the seven cereal grains, in the present embodiment, the central one And the left side of the grain mash (4th and 5th grain mash K4 and K5 counted from the rightmost side) are scraped. The 3rd scraping body 35 is arrange | positioned in the left-right center side among the several scraping bodies 33-36 at the left side of the 2nd scraping body 34. FIG.

  The fourth scraper 36 is the left side of the cereals caused by the sixth and seventh elevating cases 32, 32 among the cereals of the 7th part (the 6th and 7th part of the cereals counted from the right side). K6 and K7) stocks are being scraped. The fourth scraper 36 is disposed on the leftmost side of the plurality of scrapers 33 to 36 and adjacent to the left of the third scraper 35.

  As shown in FIG. 2, the cutting blade device 14 is arranged in a slanted shape with a front, a rear, and a height, below the scraping device 13 and in front of the left and right extension connecting pieces 22. The cutting blade device 14 has a clipper shape having a cutting blade 37 that reciprocally slides in the left-right direction. 37 is used for cutting.

  As shown in FIG. 1, the cereal conveying device 15 extends from the upper side to the rear upper side of the scraping device 13 and the cutting blade device 14, and includes a lower conveying device 40, an upper conveying device 41, a vertical conveying device 42, and a tip conveying device 43. An auxiliary transport device 44 is arranged. Then, the cereals whose stocks have been cut by the cutting blade device 14 are conveyed toward the threshing unit 5.

  As shown in FIG. 3, the lower transport device 40 includes a first lower transport body 45, a second lower transport body 46, a third lower transport body 47, and a fourth lower transport body 48. The stockholders are joined and conveyed to the vertical conveying device 42.

  The 1st lower conveyance body 45 is cereal rice cake K3- which is pinched and conveyed from the other lower conveyance bodies 46-48 to the stock source of the grain cocoons K1 and K2 of 2 articles | staffs which were raked in by the 1st cutting body 33 The stocks of the K7 stocks are merged, and the stocks of the cereals K1 to K7 for the seven strips are clamped and conveyed to the vertical transport device 42. The first lower transport body 45 is disposed in a slanted shape at the front, rear, and rear height behind the first scraper 33 and the second scraper 34, from the vicinity of the first scraper 33 toward the left oblique rear. It is extended.

  The second lower transport body 46 is configured to sandwich and transport the stock of the stalk K3 for one line scraped by the second scooping body 34 to the first junction 50 with the first lower transport body 45. . The second lower transport body 46 is disposed behind the second scraping body 34 and in front of the left side of the first lower transport body 45 in a front, rear, and rear inclined shape so that the second lower transport body 46 can be 1 The lower carrier 45 is extended backward to the vicinity of the middle of the conveyance. Here, the first merging portion 50 is in the middle of the conveyance of the first lower conveyance body 45 and is positioned close to the second lower conveyance body 46.

  The third lower transport body 47 sandwiches and conveys the stocks of the two cereal grains K4 and K5 scraped by the third scraping body 35 to the second junction 51 with the fourth lower transport body 48. ing. The third lower transport body 47 is arranged behind the third scraper 35 and in front of the right side of the fourth lower transport body 48 in a slanted shape with front, rear, and rear heights, and the third lower transport body 47 starts from the vicinity of the third scraper 35. 4 The lower carrier 48 is extended rearward to the vicinity of the middle of the conveyance. Here, the second merging portion 51 is in the middle of the transport of the fourth lower transport body 48 and is positioned close to the third lower transport body 47.

  The 4th lower conveyance body 48 is the stock of koji k6 and k7 for 2 stakes raked by the 4th scooping body 36. The stocks are merged, and the stocks of the cereal mashes K4 to K7 for the four strips are nipped and conveyed to the third junction 52 with the first lower conveyance body 45. The fourth lower transport body 48 is arranged in a slanted shape at the front, rear, and rear height behind the fourth scraping body 36, and the right from the vicinity of the third scraping body 35 to the vicinity of the transport end portion of the fourth lower transport body 48. Extends diagonally backward. Here, the third merging portion 52 is positioned downstream of the middle portion of the first lower carrier 45 and close to the fourth lower carrier 48.

  As shown in FIG. 4, the upper transport device 41 includes a first upper transport body 60, a second upper transport body 61, a third upper transport body 62, and a fourth upper transport body 63. The tip of the grain culm that is being nipped and conveyed is locked and conveyed. As shown in FIG. 1, the upper transport device 41 is disposed above the lower transport device 40 in a front, rear, rear, and height inclination and extends rearward from the vicinity of the upper portion of the scraping device 13.

  The first upper transport body 60 joins the tips of the grain culms K1 and K2 for the two strips transported by the first lower transport body 45 with the heads of the cereal K3 that is latched and transported from the second upper transport body 61. Then, the tips of the grain ridges K1 to K3 for the three strips are locked and conveyed. The first upper transport body 60 is disposed above the first lower transport body 45 and extends from the vicinity of the first scraping body 33 toward the left oblique rear side.

  The second upper transport body 61 locks and transports the tips of the cereals K3 for one line transported by the second lower transport body 46 to the fourth junction 53 with the first upper transport body 60. . The second upper transport body 61 is disposed above the second lower transport body 46. Here, the fourth merging portion 53 is in the middle of the conveyance of the first upper conveyance body 60 and is positioned close to the second upper conveyance body 61.

  The third upper transport body 62 locks and transports the tips of the two cereal grains K4 and K5 transported by the third lower transport body 47 to the fifth junction 54 with the fourth upper transport body 63. ing. The third upper transport body 62 is disposed above the third lower transport body 47 and extends from the vicinity of the third scraping body 35 toward the left oblique rear side. Here, the fifth merging portion 54 is in the middle of the conveyance of the fourth upper conveyance body 63 and is positioned close to the third upper conveyance body 62.

  The fourth upper transport body 63 is configured to hold the cereals K4 and K5 that are latched and transported from the third upper transport body 62 to the tips of the two cereals K6 and K7 that are transported by the fourth lower transport body 48. The tips are merged, and the tips of the grain ridges K4 to K7 for the four strips are locked and conveyed to the sixth junction 55 with the first upper conveyance body 60. The fourth upper transport body 63 is disposed above the fourth lower transport body 48 and extends from the vicinity of the fourth scraping body 36 toward the right oblique rear side. Here, the sixth merging portion 55 is positioned downstream of the middle part of the transport of the first upper transport body 60 and close to the fourth upper transport body 63.

  As shown in FIG. 1, the vertical conveyance device 42 is arranged in a slanted shape with a front, rear, and rear height behind the lower conveyance device 40, and extends from the vicinity of the conveyance terminal portion of the lower conveyance device 40 toward the left diagonal rear. I am letting. The vertical conveying device 42 sandwiches and conveys the stock of seven cereal grains inherited from the conveying terminal portion of the first lower conveying member 45 to the auxiliary conveying device 44.

  As shown in FIG. 1, the tip transport device 43 is configured to lock and transport the tips of the cereals that are transported by the first lower transport body 45, the vertical transport device 42, and the auxiliary transport device 44. The tip conveying device 43 is disposed below the rear portion of the first upper conveyance body 60 and extends rearward from the vicinity of the middle of conveyance of the first upper conveyance body 60.

  As shown in FIG. 1, the auxiliary conveyance device 44 is arranged at the upper rear side of the vertical conveyance device 42 and extends rearward from the vicinity of the conveyance terminal portion of the vertical conveyance device 42. Then, the auxiliary transport device 44 sandwiches and transports the stock of seven cereal grains inherited from the transport terminal portion of the vertical transport device 42 to the threshing unit 5.

  With such a configuration, the cutting unit 4 drives each unit with power from the prime mover during the cutting operation, and takes in the grain culm planted in the field while harvesting. That is, in the cutting unit 4, the cereal straws K <b> 1 to K <b> 7 in the field are weeded so that they are separated by the weeding body 11 for each line. Thereafter, the weed cereals K1 to K7 are caused by the pulling device 12. Subsequently, the stocker side of the grain straws K1 to K7 caused by the pulling device 12 is scraped by the scraping device 13, and the stocker side of the scraped grain straws K1 to K7 is cut by the cutting blade device 14 ( Cut). The grain straws K1 and K2, the grain straws K3, the grain straws K4 and K5, and the grain straws K6 and K7 after cutting are merged and converged while being joined by the grain straw transporting device 15 in the middle. It is conveyed toward the threshing unit 5 later.

  Further, as shown in FIG. 5, the third transmission case 18 is formed by connecting the first divided case forming piece 80 to the fourth divided case forming piece 83 formed in a cylindrical shape in a straight line in the left-right direction. Yes. A first flange 84 formed in a bowl shape at the right end of the first split case forming piece 80 forming the left side, and a bowl formed at the left end of the second split case forming piece 81 The second flanges 85 are brought into contact with each other in abutting manner and are connected by the first connecting bolts 86. A third flange 87 formed in a hook shape at the right end of the second split case forming piece 81 and a hook shape formed at the left end of the third split case forming piece 82 forming the right portion. The fourth flanges 88 are brought into contact with each other in abutting manner and are connected by the second connecting bolts 89. A fifth flange 90 formed in a hook shape at the right end of the third split case forming piece 82 and a sixth flange 91 provided in a hook shape at the left end of the fourth split case forming piece 83. Are brought into contact with each other in a butting manner and connected by a third connecting bolt 92. The second divided case forming piece 81 and the second transmission case 17 are integrally formed in an inverted T shape, and the lower end portion of the second transmission case 17 is connected to the right side of the second divided case forming piece 81 in an orthogonal state. doing. And the 2nd transmission shaft inserted and arranged in the 2nd transmission case 17 and the 3rd transmission shaft 150 arranged and inserted in the 3rd transmission case 18 are bevel gears ( (Not shown).

An accumulation prevention body 100 such as mud is disposed in front of the third transmission case 18 of the cutting unit 4 configured as described above. Next, the configuration of the mudstone accumulation prevention body 100 will be described with reference to FIGS.

[Description of the structure of sediment prevention bodies such as mud]
As shown in FIG. 5, the muddy earth accumulation preventing body 100 extends in front of the third transmission case 18, which is a transmission case, and extends to the front of most of the third transmission case 18 except for the left and right end portions. It arrange | positions so that a surface and an upper peripheral surface may be coat | covered. And the mudstone deposit prevention body 100 is pivotally supported around the axis in the left-right direction in a stationary position below the stock of the culms K1 to K7 conveyed by the culm transport device 15. Balanced. Further, when mud or the like dropped from the stockholders of the grain culms K1 to K7 adheres to the mud sediment prevention body 100, the stationary balance of the mud sediment prevention body 100 is broken and swung. At this time, the sediment prevention body 100 such as mud does not interfere with the stocks of the grains K1 to K7. In particular, the muddy soil accumulation prevention body 100 is made to swing steadily around the pivotal support portion when the cutting unit 4 is moved up and down.

  More specifically, as shown in FIG. 5, the sediment prevention body 100 such as mud is formed by dividing it into left and right parts and arranged in close proximity to the left and right sides, and the left and right sides thereof. 1st-4th pivotal bodies 103-106 each provided in the side part are comprised. The left and right main bodies 101 and 102 are each formed in a strip shape extending in the left-right direction, and as shown in FIGS. 6 to 8, the front peripheral surfaces 107 and 108 and the upper peripheral surfaces 109 and 110 protrude forward in a side view. It is formed in the shape of an arc of a strip and covers a range of approximately 120 degrees, which is the front peripheral surface and the upper peripheral surface of the third transmission case 18. 129 shown in FIG. 5 is a left interference avoiding recess formed in the right side portion of the rear end edge of the left main body 101. When the left main body 101 is rotated backward by the left interference avoiding recess 129, the second transmission case 17 is provided. To avoid interference. Reference numeral 160 shown in FIG. 5 is a right interference avoiding recess formed on the right side of the front edge of the right main body 102. When the right main body 102 is rotated forward by the right interference avoiding recess 160, the right stay 38 Interference with a transmission mechanism (not shown) or the like to the blade device 14 is avoided. In addition, the left and right main bodies 101 and 102 are made of stainless steel that does not slide and adhere even if weeds or the like containing moisture are intended to prevent accumulation.

  The left main body 101 is provided with a flat fan-shaped plate-like first pivotal body 103 and a second pivotal body 104 that extend in the front-rear direction on the left and right side portions on the back side so as to face each other in the left-right direction. Further, the right main body 102 is provided with a flat fan-shaped plate-like third pivot body 105 and a fourth pivot body 106 extending in the front-rear direction on the left and right sides of the back surface so as to face in the left-right direction. In the middle of these first to fourth pivotal bodies 103 to 106, first to fourth pivotal support holes 111 to 114 that open in the left-right direction are formed in alignment with each other on the same imaginary line extending in the left-right direction. Yes.

  The left and right side portions and the middle portion of the front peripheral surface of the third transmission case 18, that is, the left side portion of the first split case forming piece 80, the right side portion of the fourth split case forming piece 83, and the right side of the second split case forming piece 81. At the ends, left and right side support arms 115 and 116 and a midway support arm 117 project forward. And the 1st-4th pivot holes 111-114 formed in the middle part of the back side of the right-and-left side main bodies 101 and 102 at the front-end | tip of each support arm 115-117 are pivotally supported around the axis line of the left-right direction, The left and right main bodies 101 and 102 are individually pivotable on the same axis around the first to fourth pivot holes 111 to 114, respectively.

  That is, the left and right side support arms 115 and 116 are formed in a rod shape, and left and right on the left side of the front peripheral surface of the first split case forming piece 80 and the right side of the front peripheral surface of the fourth split case forming piece 83. The base ends of the support arms 115 and 116 are fixed by left and right fixing bolts 127 and 128 via side fixing brackets 125 and 126, respectively. The front ends of the support arms 115 and 116 extend forward and upward, and are opposed to each other on the same axis that is bent inward and extends in the left-right direction. The tip of the left side support arm 115 is inserted into the first pivot hole 111 formed in the first pivot body 103, while the tip of the right side support arm 116 is formed in the fourth pivot body 106. A pivot part is formed by being inserted into the fourth pivot hole 114.

  The midway portion support arm 117 is formed in a narrow plate shape, and the base end portion of the midway portion support arm 117 is fixed to the right end portion of the front peripheral surface of the second divided case forming piece 81. The front end of the midway support arm 117 extends forward and upward, and a pivot hole 118 is formed at the front end. The second pivot hole 112 formed in the second pivot body 104, the third pivot hole 113 formed in the third pivot body 105, and the pivot hole 118 disposed between these pivot holes 112, 113 are left and right. It is arranged on the same imaginary line (same axis) extending in the direction, and is pivoted through a straight rod-shaped common support shaft 119 extending in the left-right direction in these pivot support holes 112, 113, 118. Is forming.

  With this configuration, the left and right main bodies 101 and 102 are pivotally supported on the distal ends of the left and right support arms 115 and 116 via the first and fourth pivot holes 111 and 114, respectively. It is pivotally supported at the front end of the midway support arm 117 via an interlocking rod 119 that passes through the holes 112, 113, and 118, and can swing individually about the same axis in the left-right direction.

  In other words, the left and right main bodies 101 and 102 are pivotable downward (counterclockwise in left side view) with the front peripheral surfaces 107 and 108 about the pivot portion, while the upper peripheral surface 109 is centered on the pivot portion. 110 are pivotable backwards (clockwise in the left side view) and are swingable in both directions.

  In the mowing position of the mowing unit 4, the left main body 101 of the mud deposit prevention body 100 is a connecting flange (in the present embodiment, the first flange) which is a member connected to the third transmission case 18 or the third transmission case 18. The rear end edge portion 140 abuts on the intermediate edge portion 93 of the upper edge 84 (this position is also referred to as an “upward rotation restricting position”) to take a stationary posture. That is, the left main body 101 takes a neutral posture in which the left main body 101 is stationary with its rearward rotation restricted. Further, the right main body 102 is connected to the third transmission case 18 or a connecting flange (a front edge upper portion 94 of the fourth flange 88 in this embodiment) which is a member connected to the third transmission case 18. The rear end 142 abuts (this position is also referred to as an “upward rotation restricting position”) to take a stationary posture. That is, the right-side main body 102 takes a neutral posture in which the right-side main body 102 is stationary in a state where the backward rotation is restricted. When mud etc. dropped from the stocks of the culm K1 to K7 conveyed by the culm conveying device 15 adheres to the front surface side of the left and right main bodies 101, 102 (front side from the pivot point), the left and right sides The stationary balance of the main bodies 101 and 102 is broken, and the left and right main bodies 101 and 102 are rotated downward about the pivotal support. The front end edge portion 141 of the left main body 101 abuts on the front edge lower portion 95 of the first flange 84 (this position is also referred to as a “downward rotation restricting position”) so as to be stationary. That is, the left main body 101 is restricted from being rotated rearward and downward. Further, the front end edge portion 143 of the right main body 102 abuts on the front edge lower portion 96 of the fourth flange 88 (this position is also referred to as “downward rotation restricting position”) so as to be stationary. In other words, the right main body 102 is restricted from turning rearward and downward.

  As shown in FIG. 3, the above-described corn straw transporting device 15 joins a plurality of (seven in the present embodiment) corn straws K <b> 1 to K <b> 7 to the third merging portion 52 that is one merging point. ~ 4th merging conveyance path 120-123 and threshing culm K1-K7 merged at the merging point (third merging part 52) of these merging conveyance paths 120-123 collectively, threshing part 5 side of traveling machine body 3 A collective conveyance path 124 for conveying to the lower side is provided, and an accumulation prevention body 100 such as mud is disposed at a position below the junction (third junction 52). That is, the mud deposit prevention body 100 covers the third transmission case 18 that is the place where the mud etc. is most likely to be shaken off from the roots of the grains K1 to K7, and the mud dirt etc. that has been shaken off is most likely to accumulate. The third transmission case 18 is protected by being arranged as described above. And the mud deposit prevention body 100 is a stationary balance when mud etc. fall on the mud deposit prevention body 100 (mainly the front part side (front side from a pivot point)) from the stockholders of the grains K1 to K7. Is broken and rotated downward so that mud or the like on the sediment prevention body 100 such as mud is slid down or shaken off. Therefore, no mud or the like is deposited on the mud or other accumulation preventing body 100.

  The mudstone accumulation prevention body 100 is configured as described above, and the mudstone accumulation prevention body 100 produces the following effects. That is, for example, when the mowing unit 4 is arranged in the mowing posture when performing the mowing work in the paddy field, the left and right main bodies 101 and 102 of the mudstone accumulation preventing body 100 are in the neutral posture as shown in FIG. The stationary posture that is. And when mud etc. are dropped from the stock of the grain straws K1-K7 conveyed by the grain straw transporting device 15, as shown in FIG. In some cases, mud D or the like adheres mainly to the front surface side of 101, 102 (front side from the pivot point). Then, the stationary balance of the left and right main bodies 101 and 102 is lost, and the left and right main bodies 101 and 102 are individually rotated rearward and downward about the pivotal support. When there is much adhesion amount of mud D etc., it rotates to the downward rotation control position.

  At this time, if the cutting unit 4 is slightly moved up and down for adjusting the cutting height, the right and left main bodies 101 and 102 that are controlled to rotate rearward and downward or to the rearward and downward are not subject to inertia. Since the force acts and the ends of the left and right main bodies 101 and 102 collide with the lower rotation restricting position or the upper rotation restricting position and receive an impact, the adhering mud D is swung to the field G. Be dropped.

  Therefore, it is possible to prevent the accumulation of mud or the like on the left and right main bodies 101 and 102 regardless of the levelness of the farm scene. And since the right-and-left side main bodies 101 and 102 are rocked without interfering with the stock holders of the grain straws K1 to K7, the posture of the grain straws K1 to K7 transported by the grain straw transporting device 15 is ensured satisfactorily. can do. Further, since most of the front and upper sides of the third transmission case 18 can be covered and protected by the front peripheral surface and the upper peripheral surface of the left and right main bodies 101, 102, mud or the like adheres to the third transmission case 18. Can be prevented from being deposited. As a result, the labor for cleaning the third transmission case 18 can be reduced.

  Further, when the traveling machine body 3 is turned (U-turn), the cutting unit 4 is greatly raised. At that time, the rear end edge portion 140 of the left main body 101 collides with the middle portion 93 of the upper edge of the first flange 84 which is the upper rotation restricting position. Further, the rear end portion 142 of the right main body 102 collides with the front edge upper portion 94 of the fourth flange 88 that is the upper rotation restricting position. The mud and the like adhering to the left and right main bodies 101 and 102 are steadily shaken off even in the impact at the time of these collisions. As a result, mud etc. can be prevented from accumulating on the left and right main bodies 101, 102, and mud etc. can be adhered and accumulated on the third transmission case 18 by the left and right main bodies 101, 102. Can be prevented.

  In addition, since the left and right main bodies 101 and 102 are pivotally supported, the stationary balance is lost even when receiving vibration from the traveling machine body 3 in addition to the lifting operation and vibration of the cutting unit 4, and the upper or It may collide with the lower rotation restricting position, and the mud D and the like adhering to the impact at that time can be shaken off.

  Since the muddy soil accumulation prevention body 100 can be mounted and supported in a swingable manner in the third transmission case 18 with a simple structure, a smooth and steady swinging operation can be ensured and the manufacturing cost can be reduced. Can be

  Since the sediment prevention body 100 such as mud is disposed below the junction (the third junction 52), mud etc. are disposed at the lower position where the bundled multiple grains K1 to K7 are collectively disposed. The left and right main bodies 101 and 102 of the deposition preventing body 100 can be rocked firmly. Therefore, mud and the like that are collectively dropped on the left and right main bodies 101 and 102 are firmly shaken off by the left and right main bodies 101 and 102 that are swung. As a result, accumulation of mud on the left and right main bodies 101 and 102 and further on the third transmission case 18 can be prevented. In addition, since the bundled multiple grains of rice cakes K1 to K7 are conveyed without interfering with the left and right main bodies 101, 102, the conveyance posture of the grains of rice cakes K1 to K7 is well maintained and the transportability is ensured. can do.

  As shown in FIGS. 1 and 2, the pulling device 12 has the weed ridges 130 attached to the side edges of the first, second, third, fifth, and seventh pulling cases 32. That is, the weed ridge 130 is attached to the side edge portion on the side where the tine of each pulling case 32 does not cause a pulling action so as to bulge forward. The weed ridge 130 is formed integrally with a rising piece 131, a backward inclined piece 132, a forward inclined piece 133, and a curved piece 134 by bending a bar-like piece. The rising piece 131 is formed by raising from the rear part of the weeding body 11 arranged in the vicinity of each pulling case 32 directly upward. The rearwardly inclined piece 132 is formed to extend rearward and upward from the upper end portion of the rising piece 131. The forward inclined piece 133 is formed by extending from the upper end portion of the backward inclined piece 132 forward and upward. The curved piece 134 is formed by bending backward from the upper end of the forward inclined piece 133 and extending rearward and upward. The front end (rear end) of the curved piece 134 is disposed in the vicinity of the upper front portion of each pulling case 32. The upper end portion of the forward tilting piece 133 is connected and supported by the tip of a weed ridge stay 135 protruding from the front surface of each pulling case 32. That is, the weed ridge 130 is constructed between the weed body 11 and the weed ridge stay 135. The upper end portion of the forward inclined piece 133 is disposed slightly rearward from the upper end portion of the rising piece 131. A bent portion 136 bent in a “<” shape is formed between the distal end (upper end) of the backward inclined piece 132 and the proximal end (lower end) of the forward inclined piece 133.

  In this way, not only the grain culm that is caused by the weed culm 130 but also a so-called floating wall such as a weed, a hakama, or a cut culm is forcibly dropped. That is, the floating wall pushed upward from the rising piece 131 along the backward inclined piece 132 is bent at the connecting portion between the backward inclined piece 132 and the forward inclined piece 133 to form a bent portion 136. Therefore, the floating wall pushed backward is dropped downward at the bent portion 136. Further, since the remaining floating wall pushed up along the forward inclined piece 133 is curved at the connecting portion with the curved piece 134, the floating wall 133 reaches the upper end of the forward inclined piece 133 and all the floating wall is moved forward. It is pushed upward and dropped downward. In this way, since the floating wall can be pushed out by cooperating both the backward inclined piece 132 and the forward inclined piece 133, the floating wall can be efficiently and steadily eliminated.

  Conventionally, not only cereals to be raised, but also so-called floating weirs such as weeds, hakama, or chopped straws are lifted after being lifted and conveyed upward while being guided by the side edge of the raising case. Stagnating at the upper part between the path and the raising path, the accumulated floating wall is occasionally pulled and entangled with the raising claw that moves along the path and pulled into the raising case, which causes the function of the triggering device Sometimes it couldn't be done enough. Therefore, as a means for solving such a problem, a structure of a pulling device provided with a weed ridge is disclosed in Japanese Utility Model Publication No. 7-19219.

  In other words, the pulling device has a plurality of pulling cases arranged side by side in the machine body width direction, and is turned horizontally to one side of each pulling case to cause a type of pulling nail to protrude to the side of the pulling case. In addition, among the pulling cases, the front part of the pulling case that exists between adjacent pulling paths and the side opposite the pulling case side edge of the pulling claw protruding side to the pulling path At the position close to the edge, a weeding fence that covers the entire length of the lifting case is fixed, and at the upper part of this weeding fence, a front overhanging part having a guide edge that leans forward from the vertical line and has an inclined posture is formed. ing.

  According to such a weed fold, the floating wall is gradually separated from the raising case in the process of being raised and lifted upward by the claw. When the floating straw reaches near the top of the weed ridge, it is restricted from being lifted upward by the presence of the front overhanging portion of the weed ridge, and is further forward by the guide edge tilted forward from the vertical line. Is finally pushed down. As a result, the occurrence of a situation where the floating wall is raised and entangled with the claws and drawn into the raising case is reduced, and the planted stem is raised and reliably raised by the device.

  However, in such a weed weed, the floating wall is pushed forward by the guide edge formed at the upper part thereof, so that the floating wall is not moved to the front of the guide edge unless it is lifted up to the upper part of the pulling case. As a result, there was a problem in efficiency and solidity that the floating wall was unnecessarily lifted up to the upper part of the raising case.

  Therefore, the present embodiment aims to improve the efficiency and solidity of the conventional weed pods by configuring the weed pods as described above.

DESCRIPTION OF SYMBOLS 1 Combine 2 Traveling part 3 Traveling machine body 4 Mowing part 100 Mudstone accumulation prevention bodies

Claims (4)

A cutting part is attached to the front of the traveling machine body so that the cutting part can be pivoted up and down, and the cutting part is a cutting blade device that cuts a plurality of grain culms planted in the field, and a transmission case that transmits power to the cutting blade device. , A combine comprising a culm conveying device that is arranged above the transmission case and conveys the cereal that has been cut by the cutting blade device to the rear,
The transmission case is formed by extending in the left-right width direction, and a deposit prevention body such as mud extending along the transmission case and covering the front peripheral surface and the upper peripheral surface of the transmission case is disposed in front of the transmission case,
Mud deposit prevention body pivots the middle part of the front and rear width so as to be swingable around the axis in the left-right direction. A combine that is characterized in that when it adheres, it is swung around the pivot part without interfering with the cereal and shakes off the adhering mud.   In the mowing position of the mowing part, the sediment prevention body such as mud is dropped from the culm being transported so that the rear end edge part comes into contact with the transmission case or a member connected to the transmission case and takes a stationary posture. The combine according to claim 1, wherein mud soil or the like adheres to the front surface side of the sediment prevention body such as mud soil, and thereby the stationary balance is broken and the combine is swung around the pivotal support portion.   The mudstone deposit prevention body is formed in a belt shape extending in the left-right direction, and the front peripheral surface and the upper peripheral surface are formed in a convex arc shape in front view, and projecting forward from the transmission case The combine according to claim 1 or 2, wherein a middle part in the front-rear width is pivotally supported around the axis in the left-right direction at the tip of the arm so as to be swingable around the pivotal part. The corn straw transporting apparatus comprises a merging transport path for joining a plurality of cereal mashes at one merging point, and a collective transport path for transporting the joined cereal straws collectively to the traveling machine body side,
The combine according to any one of claims 1 to 3, wherein a deposit prevention body such as mud is disposed at a position below the junction.

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