JP2007181428A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent deformation of a winnower caused by receiving negative pressure by opening or closing a suction port part of a winnower side part to enable adjustment of separation air amount of the winnower. <P>SOLUTION: In a combine harvester in which an air suction port part is formed on a side part of a winnower for blowing separation air and slidably moving winnower shutters 41 and 42 are installed in the vicinity of the suction port part and the air suction port part is opened and closed by slide movement of the winnower shutters 41 and 42 to enable adjustment of separation air amount of the winnower, the winnower shutters 41 and 42 are constituted so as to enable slide movement around pivotally supporting parts 41C and 42C supporting one side end and a regulating body is installed in the vicinity of the winnower shutters 41 and 42 and movement of the regulating body in a direction which is perpendicular to the suction air port part is regulated regardless of slide positions of the winnower shutters 41 and 42. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a combine that can adjust the sorting air volume of tang.

  Conventionally, as one form of combine, there is a sorter that sorts the threshed grain, and a grain that is subjected to rocking and sorting is further provided with a tang for blowing the selected wind (for example, Patent Document 1).

In addition, the tang has a suction port on the side and a tang shutter that slides on the lower side of the suction port. It is adjustable.
JP-A-10-33048

  However, in the above-described tang, the tang shutter that receives the selection air may be subjected to negative pressure and deformed over time, so that the tang shutter may not perform an appropriate sorting air volume adjustment function.

  In addition, since the red-hot shutter is provided in the lower part of the intake port portion and is disposed in the vicinity of the crawler-type traveling portion, mud or the like scattered upward by the crawler-type traveling portion is covered with the red-hot shutter. The Tang Dynasty shutter may be damaged or deformed, and the Tang Dynasty shutter may not perform an appropriate sorting air volume adjustment function.

  Furthermore, there is a risk that the scraps wound up by the traveling crawler will enter the tang and hinder the selection, or the eel will be sucked into the tang and then the tang will be wound around the tang shaft and hinder the intake air. is there.

  In addition, there is a risk that scattered mud or the like may enter the tang and lower the wind selection function of the tang, and in such a case, it is necessary to frequently maintain the tang.

  Therefore, in the present invention, a suction port portion is formed on the side portion of the tang that blows the selection air, and a tang shutter that slides in the vicinity of the suction port portion is provided. In a combine that can be opened and closed to adjust the sorting air volume of the red pepper, the red pepper shutter is slidable around a pivot that pivots one end, and a regulating body is provided in the vicinity of the red shutter. The regulating body provides a combine characterized in that the movement of the red-hot shutter in the direction orthogonal to the intake port is restricted regardless of the slide position of the red-hot shutter.

  Further, in the present invention, the restricting body is arranged with a restricting body main body extending in the front-rear direction at least in the vicinity of the upper or lower portion of the intake port portion, and a restriction oblong hole that opens in the up-down direction is formed in the restricting body main body. Then, a part of the red pepper shutter is slidably fitted into the restriction long hole so as to restrict the movement of the red pepper shutter in the direction orthogonal to the intake port, and the upper surface of the restriction body is It is also characterized in that it is formed in a downwardly inclined shape toward the outside downward.

  (1) In the first aspect of the present invention, an air inlet portion is formed on the side portion of the red pepper that blows the sorting air, and a hot spring shutter that slides in the vicinity of the air inlet portion is provided. In a combine that can adjust the sorting air volume of the tang by opening and closing the inlet port by moving, the tang shutter is not slidable around the pivot that pivots one end, and is near the tang shutter A restricting body is provided at the same time, and the restricting body restricts the movement of the red-hot shutter in the direction orthogonal to the air inlet portion regardless of the slide position of the red-hot shutter.

  In this way, the movement of the red-hot shutter in the direction orthogonal to the inlet port is regulated regardless of the slide position of the red-hot shutter. Therefore, it is possible to surely prevent the occurrence of a problem of being deformed over time, and to ensure an appropriate sorting air volume adjustment function by the same-shaped shutter.

  (2) In the present invention described in claim 2, the restricting body has a restricting body extending in the front-rear direction disposed at least in the vicinity of the upper portion or the lower portion of the intake port portion, and opens vertically in the restricting body. A restriction long hole is formed, and a part of the red pepper shutter is slidably inserted into the restriction long hole so as to restrict the movement of the red pepper shutter in the direction perpendicular to the intake port. The upper surface of the body body is formed so as to be inclined downward toward the outside and downward.

  In this way, for example, when the restricting body is arranged in the vicinity of the upper portion of the intake port portion, the upper surface of the restricting body is formed in a downwardly inclined shape toward the lower outside, so that it falls from above. Dust and dust can be slid outward and downward along the upper surface of the regulating body, and dust and dust can be prevented from being sucked into the air. As a result, it is possible to satisfactorily ensure the wind selection efficiency by the Kara.

  In addition, when a restricting body is arranged near the lower part of the air inlet part, mud soil or the like scattered from below by the crawler type traveling part collides with the Kara shutter, and the Kara shutter is damaged or deformed. Can be prevented. As a result, it is possible to satisfactorily ensure the wind selection efficiency by the Kara.

  In addition, it can prevent the sawdust wound up by the traveling crawler from entering the carp and ensure a good sorting function, and it prevents the long carp from being sucked into the carp air inlet and winds the carp. Can be secured satisfactorily.

  In addition, it is possible to prevent the scattered mud from entering the tang, so that the wind selection function of the tang can be secured well and the maintenance frequency of the tang is greatly reduced. be able to.

  FIG. 1 is a left side view of a combine A according to an embodiment of the present invention, and FIG. 2A is a schematic rear view showing a configuration of a main part in the combine A shown in FIG. FIG. 3B is a schematic side view showing the main configuration of the combine A shown in FIG. 1, and FIG. 3 is a rear view of the tang portion shown in FIG. In addition, this invention is not limited to the combine A which concerns on this Embodiment, It can apply widely to the combine (self-desorption type | mold and a general purpose type | mold) provided with a red pepper in the selection part.

  That is, the combine A is provided with a pair of left and right crawler type traveling units 2 and 2 below the body frame 1, the cutting unit 3 is attached to the front end of the body frame 1, and the threshing unit 4 is mounted on the left rear part on the body frame 1. In addition, a sorting unit 5 is disposed below the threshing unit 4, a waste disposal unit 6 is disposed on the rear side, and a driving unit 7 is disposed on the front right side on the body frame 1. At the same time, a grain storage unit 8 is disposed behind the operation unit 7.

  As shown in FIG. 1, the cutting unit 3 pivotally supports the base end of the cutting frame 11 between the upper ends of a pair of left and right supports 10, 10 erected on the left front end of the body frame 1. The mowing frame 11 is turned up and down to freely move up and down.

  In the cutting frame 11, a stalk body 12 that divides the cereal into a plurality of strips (four in the present embodiment), and a culm raising device that causes the stalks of stalks that have been split by the split weed 12 13 and the stock base part scraping device 14 that stirs the stock base part of Shijo's grain spear caused by the grain spawning device 13 and the stock base part of the grain sprinkled by the stapling device 14 Blade device 15 for harvesting, a lower transport device 16 for transporting the lower part of the four rows of cereals harvested by the blade device 15 to the threshing unit 4 side, and an upper part of the cereal basket for transporting to the threshing unit 4 side Auxiliary transfer device 17, tip portion transport device 18 that transports the head portion of the same cereal to the threshing portion 4 side, and assistance when delivering the cereal from the upper and lower transport devices 17, 16 to a feed chain 22 that will be described later And an auxiliary conveying device 19 for performing the above.

  As shown in FIG. 1, the threshing unit 4 is configured by a feed chain 22 disposed on the left side of the threshing unit 4 by disposing a handling cylinder 21 in the handling chamber 20 so as to be rotatable around an axis in the front-rear direction. In the state where the head portion of the grain pod is inserted into the handling chamber 20, the tip portion is threshed by the handling barrel 21 while the grain pod is transferred from the front to the rear.

  The sorting unit 5 has a swinging sorter 23 disposed below the handling cylinder 21, a tang 24 is disposed below the front part of the swinging sorter 23, and the most conveyor is located behind the tang 24. 25 and No. 2 conveyor 26 are arranged, and the grain threshed in the threshing section 4 is subjected to rocking and sorting by the rocking sorter 23 and wind-sorted by the Kara 24 to obtain the first grain. While being recovered by the first conveyor 25 and stored in the grain storage unit 8, the second grain is recovered by the second conveyor 26 and returned to the threshing unit 4.

  The waste disposal unit 6 is provided with a waste transporting mechanism 27 and a waste cutter 27a, and the waste that has been threshed by the threshing unit 4 is transported rearward by the waste transporting mechanism 27 and the waste cutter 27a. Therefore, the waste is cut into short pieces and discharged to the outside. A dust exhaust fan 28 is disposed above the swing sorting body 23, and dust, soot, and the like that are no longer required by the swing sorting work are sucked by the dust exhaust fan 28 and discharged to the outside. I am doing so.

  Next, a mechanism for adjusting the sorting air volume in the Chinese style 24 will be described.

  First, in the harvesting operation by the combine A, the harvesting operation and the threshing / sorting operation are performed at the same time. Therefore, the harvesting area (cutting speed) per unit time increases in proportion to the traveling speed of the combine during the harvesting operation. Therefore, it is also necessary to increase the processing speed of the threshing / sorting operation (that is, the processing capability in the sorting unit 5). That is, if the amount of cereals thrown into the threshing unit 4 increases, the opening of the chaff sheave 23a (see FIG. 1) provided in the rocking sorter 23 is increased, and the object to be processed falling below the chaff sheave 23a. In addition to increasing the amount, it is necessary to perform an operation to increase the sorting capacity by increasing the sorting volume by the Kara 24 that blows the sorting wind.

  Here, with regard to the opening of the chaff sheave 23a and the selection air volume of the tang 24, the opening degree of the chaff sheave 23a and the selection air volume of the tang 24 are adjusted in accordance with the amount of cereal conveyed by the waste conveying mechanism 27, as shown in FIG. As shown in (a), a conveyance guide body (clamping) 29 is disposed below the evacuation conveyance mechanism 27 so that the distance between the evacuation conveyance mechanism 27 and the evacuation conveyance mechanism 27 can be expanded or reduced. The adjustment lever (not shown) for adjusting the opening degree of the chaff sheave 23a is adjusted by operating the chaff sheave wire 30 shown in FIG. An adjusting mechanism 52 is provided that operates and adjusts a later-described Karatsu shutter 41, 41, 42, 42 to be adjusted via a Karatsu shutter wire 31 shown in FIG. The wire 31 in FIG. 2 (a) and the wire 31 in FIG. 2 (b) are connected to each other although they are indicated by alternate long and short dashed lines and omitted.

  That is, as shown in FIG. 2 (a), the adjusting mechanism 52 attaches a sliding rod 54 extending in the vertical direction to a rod support 53 provided in the rejection processing unit 6 so as to be slidable in the vertical direction. The upper end of the moving rod 54 is connected to the middle part of the conveyance guide body (clamp) 29, while a pressing roller 55 is rotatably mounted on the lower end of the sliding rod 54, and passively below the pressing roller 55. The arm 56 is disposed, and the base end of the passive arm 56 is attached to the pivot 57 attached to the support plate 60 with the axis line in the front-rear direction via the boss 58, and the wire working arm 59 is attached to the boss 58. The base ends of the chaff sheave wire 30 and the red wire shutter wire 31 are connected to the wire action arm 59. Reference numerals 61 and 62 denote wire receivers, 63 denotes a stopper body, and 64 denotes a restoring pressure spring that elastically urges the sliding rod 54 to restore upward.

  In this way, when the amount of waste is large, the conveyance guide body (clamp) 29 is pressed downward, and the distance from the waste conveyance mechanism 27 is expanded, so that sliding The rod 54 slides downward, presses the passive arm 56 downward via the pressing roller 55, and rotates the passive arm 56 clockwise about the pivot 57.

  Then, the wire action arm 59 linked to the passive arm 56 via the boss portion 58 is also rotated clockwise around the pivot 57, and the chaff sheave wire 30 connected to the wire action arm 59 and the Karatsu The shutter wire 31 is pulled to increase the degree of opening of the chaff sheave 23a and adjust it appropriately to increase the selection air volume of the tang 24.

  In addition, when the amount of waste is small, the transport guide body (clamp) 29 is restored upward via the sliding rod 54 by the restoring pressure spring 64, and is connected to the waste transport mechanism 27. By reducing the distance, the passive arm 56 is rotated counterclockwise about the pivot 57.

  Then, the wire action arm 59 linked to the passive arm 56 via the boss portion 58 is also rotated counterclockwise around the pivot 57, and the chaff sheave wire 30 connected to the wire action arm 59 and The tangyo shutter wire 31 is pushed to reduce the opening degree of the chaff sheave 23a and to adjust it appropriately to reduce the selection air volume of the tang 24.

  Next, the adjustment structure of the selected air volume in the Chinese style 24 will be described more specifically.

  As shown in FIGS. 2 and 3, the carp 24 has an axis line in the left-right direction via shaft support pieces 34, 34 between a pair of left and right carp pivots 33, 33 provided on the left and right sides of the fan case 32. The tangling support shaft 35 facing the side is horizontally mounted around the axis, and a plurality of (in this embodiment, four) fans 36 are provided at equal intervals in the circumferential direction around the tangling support shaft 35. Attached.

  Then, an input pulley 37 is attached to the right end portion of the Karatsu support shaft 35, and rotational force transmitted from a prime mover (not shown) is taken into the input pulley 37, so that Karatsu 24 is shown in FIG. 2 (b). In the side view, the sorting wind is blown below the swinging sorter 23 by rotating counterclockwise. Reference numeral 38 denotes an output pulley attached to the left end portion of the Karatsu support shaft 35, so that power is transmitted from the output pulley 38 to the first conveyor 25 and the second conveyor 26 and further to the waste disposal processing section 6. I have to.

  In addition, air inlet portions 40, 40 are formed on the left and right side portions of the Kara 24, and a pair of left and right upper Kara shutters 41, 41 that slide in the vertical direction in the vicinity of the air inlets 40, 40, and a pair of left and right Lower Kara shutters 42 and 42 are provided, and the sliding air movement of these Kara shutters 41, 41, 42 and 42 opens and closes the air inlets 40 and 40, thereby making it possible to adjust the selection air volume of Kara 24.

  That is, the pair of left and right upper Kara shutters 41 and 41 are arranged with the side surfaces of the thin plate-like body extending in the front-rear direction along the upper part of the air inlets 40 and 40, and bulging upward at the upper edge. In the meantime, interference avoiding recesses 41b and 41b for avoiding interference with the Kara support shaft 35 are formed in the central portion of the lower end edge, and the pivot support portions 41c and 41c are formed in the front end portion. And pivotally supported by the pivot 43 formed by extending the pivotal support portions 41c, 41c in the left-right direction integrally with the front upper portions of the Karabu pivot supports 33, 33.

  Then, a wire connecting piece 41d extends downward from the left pivotal support 41c, and the tip of the red shutter wire 31 is connected to the wire connecting piece 41d.

  In addition, the pair of left and right lower shutters 42 and 42 are arranged with the side surfaces of the thin plate-like body extending in the front-rear direction along the lower portions of the intake ports 40 and 40, and bulge downward at the lower edge. Are formed in the upper end edge central portion, interference avoiding recesses 42b, 42b for avoiding interference with the Karatsu support shaft 35, and further, the rear end portion is pivotally supported portion 42c, 42c is formed, and is pivotally supported integrally with the rear lower portions of the Kara pivot supports 33 and 33 by a pivot 44 formed by extending the pivot supports 42c and 42c in the left-right direction.

  Then, the rotating action pieces 42d and 42d are extended rearward and upward from the left and right pivotal support parts 42c and 42c, and the right turning action piece 42d and the front part of the right upper Kara shutter 41 are viewed from the side. While interlockingly connected by an interlocking connecting piece 45 formed by bending in a square shape, a tension spring 47 is interposed between the left rotating action piece 42d and a spring connecting body 46 arranged behind the left acting part 42d.

  In this way, when the amount of culm introduced into the threshing section 4 increases, the tang shutter wire 31 shows the left upper culm shutter 41 via the left wire connecting piece 41d, as shown in FIG. In side view, the left upper pivot shutter 41 is pivoted (sliding) counterclockwise around the left pivot 41c, and the right upper tang shutter 41, which is integrally attached via the pivot 43, is also centered on the right pivot 41c. Is rotated (slidably moved) counterclockwise to increase the opening degree of the upper portions of the left and right intake port portions 40, 40.

  At this time, the right upper red shutter 41 is interlocked with the right lower red shutter 42 by the interlock connecting piece 45, and the right lower red shutter 42 is rotated counterclockwise integrally with the right upper red shutter 41. In addition to moving (sliding), the left lower shutter 42 attached integrally via the pivot 44 is also rotated (sliding) counterclockwise around the left pivot 42c, and left and right The opening degree of the intake ports 40 is increased.

  Further, when the amount of cereals thrown into the threshing unit 4 is reduced, the lower lower shutter 42 on the left side is rotated (sliding) clockwise by the tensile elastic biasing force of the tension spring 47, and the lower lower shutter shutter on the right side. 42 is also pivoted clockwise (sliding) integrally via the pivot 44.

  In addition, the lower right shutter 42 on the right side is interlocked with the upper upper shutter shutter 41 on the right side by the interlocking connecting piece 45, and the upper upper shutter shutter 41 on the right side is rotated clockwise integrally with the lower lower shutter 42 on the right side. At the same time, the left upper cover shutter 42 attached integrally via the pivot 43 is also rotated (slidably moved) clockwise around the left pivot 41c, and the left and right intake ports 40, 40 are rotated. The opening degree is reduced.

  In addition, upper restriction bodies 48, 48 are provided in the vicinity of the upper part of the pair of left and right upper Kara shutters 41, 41, while lower regulation bodies 49, 49 are provided in the vicinity of the lower part of the pair of left and right lower Kara shutters 42, 42. Regulating bodies 48, 48, 49, 49 are arranged in the direction orthogonal to the intake ports 40, 40 regardless of the rotation position (sliding position) of the red shutters 41, 41, 42, 42, The movement of the red-hot shutters 41, 41, 42, 42 in the direction is restricted.

  That is, the upper and lower restricting bodies 48, 48, 49, 49 are arranged with restricting body bodies 48a, 48a, 49a, 49a extending in the front-rear direction in the vicinity of the upper and lower portions of the intake ports 40, 40, respectively. Each regulation body 48a, 48a, 49a, 49a is formed with regulation long holes 50, 50, 51, 51 that open in the vertical direction. , 41, 42, 42 regulated pieces 41 a, 41 a, 42 a, 42 a are slidably fitted into each of the tangential shutters 41, 41, 42, 42 in the direction perpendicular to the air inlet 40, 40 (left-right direction) ) Can be regulated regardless of the rotation position (slide position) of the Kara shutters 41, 41, 42, 42.

  In addition, the upper surfaces of the regulating body main bodies 48a, 48a, 49a, 49a are formed in a downwardly inclined shape toward the outer lower side.

  In this way, since the upper surfaces of the restricting body bodies 48a, 48a of the pair of left and right upper restricting bodies 48, 48 are formed so as to be inclined downward toward the outside and downward, dust or dust falling from above Can be slid outward and downward along the upper surface of each regulating body 48a, 48a, dust and dust can be prevented from accumulating on the upper surface of the regulating body 48a, 48a, It can be made difficult. As a result, it is possible to satisfactorily ensure the wind selection efficiency by the Kara.

  In addition, since the upper surfaces of the restricting body bodies 49a, 49a of the pair of left and right lower restricting bodies 49, 49 are formed to be inclined downward toward the outside and downward, they are scattered from below by the crawler type traveling units 2, 2. It is possible to prevent the occurrence of a problem that the mud mud etc. collides with the Tang Dynasty shutter 41, 41, 42, 42 and the Tang Dynasty shutter 41, 41, 42, 42 is damaged or deformed, and it is scattered from below. Mud etc. can adhere to the input pulley 37 and output pulley 38 and prevent the belt from slipping, damage to the belt, rusty pulley, and dust and dirt on the upper surface of the regulator body. . As a result, it is possible to ensure a good wind selection efficiency by the Kara 24.

  Moreover, it is possible to prevent the scattered mud from entering the tang 24, and to ensure a good wind selection function of the tang 24, and to greatly increase the frequency of maintenance of the tang 24. Can be reduced.

The side view of the combine which concerns on this invention. (A) is back surface explanatory drawing of the principal part, (b) is side explanatory drawing of the principal part. Cross-sectional back side explanatory view of Karatsu.

Explanation of symbols

A Combine 1 Airframe 2 Traveling part 3 Cutting part 4 Grain part 5 Sorting part 6 Exclusion processing part 7 Driving part 8 Grain storage part
24 Tang
40 Air intake
41 Upper Kara Shutter
41a Regulated piece

Claims (2)

An air inlet is formed on the side of the tang that blows the sorting wind, and a tang shutter that slides in the vicinity of the air inlet is provided. In a combine that can adjust the air volume,
The tangyo shutter is slidable around a pivot that pivots on one side, and a restricting body is provided near the tangyo shutter. The combine is characterized in that the movement of the red-hot shutter in the direction orthogonal to the section is restricted.   The restricting body has a restricting body extending in the front-rear direction, disposed at least in the vicinity of the upper or lower portion of the air inlet portion, and a restriction long hole that opens in the up-down direction is formed in the restricting body. A part of the red pepper shutter is slidably fitted into the long hole so that the movement of the red pepper shutter in the direction perpendicular to the air inlet is restricted, and the upper surface of the regulator body is lowered outward and downward. The combine according to claim 1, wherein the combine is formed in an inclined shape.

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