JP2011097857A - Thresher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thresher having improved threshing performance by smoothly conveying grain culms directed to a threshing cylinder side and preventing cutting of grain culms by threshing teeth in the thresher in which the threshing teeth forming a comb-like shape along in the axial direction of the threshing cylinder are arranged at the outer circumference side of the threshing cylinder. <P>SOLUTION: In the thresher that is equipped with the threshing cylinder 3 rotated and driven around a shaft and a carrier 8 for conveying grain culms 2 in a state in which ear tips 2b are directed to the threshing cylinder 3 side in which a plurality of the threshing teeth 34 forming a comb-like shape by arrangement in a line along the axial direction of the threshing cylinder 3 are arranged at the outer circumference side of the threshing cylinder 3 and the grain culms 2 conveyed by the carrier 8 are threshed by the revolving threshing cylinder 3, the carrier 8 is constituted so that the threshing cylinder is supported in such a way that the direction of the rotary shaft 33 of the thresher cylinder 3 is an approximately vertical direction and the conveying direction of the grain culms 2 by the carrier 8 is an approximately horizontal direction. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a threshing device in which a plurality of comb-shaped teeth are arranged on the outer peripheral side of a barrel.

  2. Description of the Related Art Conventionally, a threshing device having a handling cylinder that is driven to rotate about an axis and a conveying body that conveys cereal with the tip pointed toward the handling cylinder, and a tooth handling provided on the outer peripheral side of the handling cylinder is conventionally known However, by arranging a plurality of teeth in parallel in the axial direction of the barrel so as to form a comb shape, the power required for rotationally driving the barrel is reduced, and swarf generated during threshing is reduced. The reduced threshing apparatus shown in Patent Documents 1 and 2 is known.

JP 2002-112614 A (FIG. 5) Japanese Patent Laid-Open No. 2002-112618 (FIG. 2)

However, in the threshing device of the above document, the tooth movement direction is substantially perpendicular to the conveying direction of the corn flour, and the corn flour is handled while being beaten by a plurality of comb-shaped teeth handling teeth. Therefore, the tooth-handling acts so as to cut the whole body of the cereal and the breakage of the ear is likely to occur, and the conveyance resistance due to the tooth-handling is increased, and the tip side is the handling cylinder. In addition to the problem that the threshing performance may be lowered due to the difficulty in smoothly transporting the cereal grains directed to the cereal, in the initial stage of threshing, where the cereal grains start to contact the handling cylinder, the head side from the cereal seed side Therefore, there is also a problem that the threshing action range by the tooth-handling is too strong, and the tensile force due to the ironing of the tooth-handling becomes too strong to cut the cereal and reduce the threshing efficiency.
The present invention solves the above-mentioned problem, and in a threshing device in which comb-like teeth along the axial direction of the handle cylinder are provided on the outer peripheral side of the handle cylinder, the grain shed directed toward the handle cylinder side is smoothly conveyed It aims at providing the threshing apparatus which improved the threshing performance by preventing the cutting | disconnection of the cereal by a tooth-handling.

  In order to solve the above problem, the threshing apparatus of the present invention firstly includes a handling cylinder 3 that is driven to rotate about an axis, and a carrier 8 that conveys the cereal basket 2 with the tip 2b facing the handling cylinder 3 side. Are provided along the axial direction of the handle 3 and provided with a plurality of comb-like teeth 34 on the outer peripheral side of the handle 3, and the pestle 2 conveyed by the carrier 8 is rotated. In the threshing apparatus that performs the threshing process by the handling cylinder 3, the rotation axis 33 direction of the handling cylinder 3 is supported so as to be substantially vertical, and the conveying direction of the pestle 2 by the conveying body 8 is substantially horizontal. The conveyance body 8 is configured.

  Secondly, rod-shaped guide members 30L, 30R, 31L, 31R, and 32 for supporting and guiding the cereal basket 2 conveyed by the conveying body 8 from the lower side into the handling chamber 4 in which the handling cylinder 3 is installed. It is characterized by the desire to provide.

  According to the threshing apparatus of the present invention configured as described above, the comb-shaped tooth handling teeth are moved in parallel along the direction substantially parallel to the conveying direction of the corn straw. Compared to the case where the comb-shaped tooth movement moves in the crossing direction with respect to the conveying direction of the cereals, the cereals are conveyed more smoothly with the tip side directed to the handling cylinder and the threshing performance is improved. The threshing action range of the tooth-treating cereals is only at the tip side of the cereal at the initial stage of threshing where the cereals begin to contact the handling cylinder, and then gradually in the process of being conveyed Since it spreads to the side, it is possible to suppress the cutting of ears at the initial stage of threshing, where there are many occurrences of cuttings, and there is an effect of reducing the number of grains and improving the threshing efficiency.

  Also, by providing a rod-shaped guide member that supports and guides the cereals conveyed by the carrier from the lower side in the handling chamber in which the handling cylinder is installed, the posture of the cereals supplied to the handling cylinder is correct. Since it is hold | maintained, there exists an effect that it becomes possible to perform a threshing process more smoothly.

It is principal part side sectional drawing of the threshing apparatus to which this invention is applied. It is a principal part plane sectional view of the threshing device to which the present invention is applied. It is a principal part sectional drawing of the threshing apparatus to which this invention is applied.

Embodiments of the present invention will be described below based on the illustrated example.
1 thru | or 3 is a principal part sectional side view, principal part top sectional view, and principal part front sectional drawing of the threshing apparatus to which this invention is applied. The threshing apparatus 1 shown in the figure is installed on the left in the forward direction (hereinafter simply referred to as “left”) of the traveling machine body of the combine, and the grain threshing 2 2 harvested by the pre-processing unit connected to the front of the traveling machine body so as to be movable up and down. It is configured to thresh.

  Specifically, the threshing apparatus 1 includes a handling chamber 4 in which a cylindrical handling cylinder 3 is supported so as to be rotatable around an axis, and a process in which the threshing device 1 is disposed below the handling chamber 4 and falls from the handling chamber 4. A sorting chamber 7 that sorts the objects 6 and a feed chain (conveying body) 8 that receives the stock 2a of the grain basket 2 and conveys it backward on the front end side of the traveling machine body are provided.

  Then, the cereal grains 2 cut by the above-described combine pretreatment unit and conveyed to the front end side of the traveling machine body are transferred to the feed chain 8, the stock 2a is sandwiched, and the tip 2b is inserted into the handling chamber 4. In this state, it is conveyed backward. The cereal basket 2 conveyed rearward by the feed chain 8 is threshed by the handling process of the handling cylinder 3 that is rotationally driven in the handling chamber 4, and is shed to be removed from the rear end of the traveling machine body. In addition to being discharged, the treated product 6 falls into the sorting chamber 7. The processed material 6 that has fallen into the sorting chamber 7 is sorted into grains such as cocoons and other swarf, etc., and the swarf is discharged outside the machine, and the grains are installed on the right side of the traveling machine body. Stored in a Glen tank.

  The sorting chamber 7 is formed between a pair of left and right plate-like side frames 9L, 9R facing each other in a parallel state. The sorting chamber 7 is supported so as to be movable back and forth and swings the workpiece 6. An oscillating sorting body 11 in the front-rear direction for sorting, a tang fan 12 for raising a sorting wind in the sorting chamber 7 obliquely upward and rearward, and a left-right direction 1 arranged near the center in the front-rear direction in the sorting chamber 7. The second helix 13 and the second helix 14 arranged behind the first helix 13 in the sorting chamber 7 are provided. Incidentally, the pair of side frames 9L and 9R constitutes a part of the frame 1a of the threshing apparatus 1, and the rear of the sorting chamber 7 is opened to discharge the sawdust and the like outside the machine. .

  The processed material 6 falling from the upper side falls to the No. 1 spiral 13 side with little influence from the No. 1 spiral 13 and to the No. 2 spiral 14 side slightly affected by the sort wind. It is wind-selected by the 2nd thing and the above-mentioned sawdust etc. which are blown up to the rear upper part of the sorting chamber 7 under the influence of the sorting wind. The first product is conveyed as grain to the above-described Glen tank by the first spiral 13 or the like, and the second product is returned to the sorting room from the upper side by the second spiral 14 or the like and wind-selected. By the way, from the above configuration, the upper side of the rear end of the sorting chamber 7 is a dust discharge part 7a where dust and so on are blown up. The rear upper part of the dust discharge part 7a is obliquely upward toward the front. It is covered with a tilted dust exhaust top plate 17.

  The feed chain 8 is configured to form a long ring in the front-rear direction and move backward on the upper side while moving forward on the lower side, and a holding member 18 in the front-rear direction is disposed above the feed chain 8. Has been. The clamping body 18 is supported in a state where the vertical movement is permitted and is elastically biased toward the feed chain 8 side, and the stockholder 2a is sandwiched between the feed chain 8 and the clamping body 18. The grain basket 2 is conveyed rearward along the handling chamber 4.

  In other words, a conveying path L for the corn straw 2 is formed between the feed chain 8 and the sandwiching body 18, and this conveying path L extends in a substantially horizontal direction, more specifically toward the rear in the conveying direction. The state is slightly inclined upward.

  The handling chamber 4 covers a front wall 19 that covers the front of the handling cylinder 3, a rear wall 21 that covers the rear, a top plate 22 that covers the top, and a side opposite to the feed chain 8. The lower side of the handling chamber 4 is opened so as to communicate with the sorting chamber 7, and the side of the handling chamber 4 on the side of the feed chain 8 is connected to the stock 2 a by the feed chain 8. It is opened so that the tip 2b side of the sandwiched grain pod 2 can be inserted.

  A supply port 19a in the left-right direction is formed in the central portion of the front wall 19 in the vertical direction, and the tip 2b side of the grain pod 2 with the stock 2a side held between the feed chain 8 via the supply port 19a In addition to being supplied into the handling chamber 4 from the front side, a gap forming a discharge port 24 is formed between the lower end of the rear wall 21 and the dust discharger top plate 17, and a feed chain is formed via the discharge port 24. 8, the tip 2b side of the grain pod 2 sandwiched between the stock 2a side is discharged out of the handling chamber 4 from the rear side of the handling chamber 4. Incidentally, the front end portion of the dust discharger top plate 17 is located on the rear side of the lower end portion of the rear wall 21.

  In addition to this, inclined surfaces 26L and 26R that are inclined downward toward the center in the left-right direction of the sorting chamber 7 are formed on the left and right sides of the lower portion of the handling cylinder 3 in the handling chamber 4 so as to extend in the front-rear direction. A guide plate 27 is integrally extended from the lower end portion of the supply port 19a in the front wall 19 toward the front.

  The left and right inclined surfaces 26L and 26R function to guide the processing unit 6 handled in the handling chamber 4 to the sorting chamber 7 side, and the lower ends of the left and right inclined surfaces 26L and 26R are the left and right side frames described above. It is connected to the inner side upper ends of 9L and 9R. The guide plate 27 supports the grain pod 2 located on the upstream side of conveyance of the supply port 19a from the lower side so that the introduction of the cereal basket 2 from the supply port 19a to the handling chamber 4 is performed smoothly. It functions so that the supply of the grain candy 2 from 19a to the inside of the treatment room 4 is performed smoothly.

  In addition, the handling chamber 4 extends in the front-rear direction so as to guide the conveyance of the cereal basket 2 in the handling chamber 4 and the scattering prevention members 28A, 28B, 29 for preventing the processed product 6 from scattering during handling. Guide members 30L, 30R, 31L, 31R, and 32, which are round bars, are provided, which will be described later.

  The handling cylinder 3 is rotatable about an axis in a substantially vertical direction by supporting a rotating shaft 33 arranged at the axis thereof so as to be rotatable about the axis in a substantially vertical direction. Is supported in the handling chamber 4. Then, by transmitting engine power to the rotating shaft 33 by means described later, the handling cylinder 3 is rotationally driven on the feed chain 8 side in the direction opposite to the conveying direction of the cereal basket 2 (clockwise in FIG. 2). Lowering processing is performed.

  A plurality of teeth 34 projecting outward in a V shape are provided on the outer periphery of the barrel 3, and the teeth 34 are arranged in parallel in a direction parallel to the rotation shaft 33 in the adjacent state. Thus, a comb-shaped tooth treatment row 36 in which wedge-shaped peaks and valleys are alternately arranged is formed, and this tooth treatment row 36 is arranged at a predetermined interval (in the illustrated example, etc. Every interval) is provided uniformly.

  Incidentally, the tooth-handling row 36 may be formed integrally or separately for each tooth-handling 34, but in the example shown in the figure, it is formed integrally and adjacent pairs of tooth-handling 34. , 34 are formed with circular holes 36a in the bottom portions of the valleys formed by the two portions so as to widen the space between the bottom portions.

  Further, one side piece of a mounting bracket 37 that is an angle-shaped member having an L-shape in plan view is bolted to both sides of the base end portion of the tooth handling row 36, and the base end of the tooth handling row 36 is provided. The tooth handling row 36 is installed and fixed to the handling cylinder 3 by bolting the other side piece of each of the pair of mounting brackets 37, 37 sandwiching the portion to the outer periphery of the handling cylinder 3. In addition to this, each of the plurality of teeth 36 is configured such that the protruding end draws the same rotation locus D in plan view when the handle 3 is driven to rotate.

  A transmission case 38 is fixed on the top plate 22 of the handling chamber 4, and a support bracket 39 fixed to the frame body 1 a of the threshing device 1 is disposed immediately below the transmission case 38 in the handling chamber 4. The upper part of the rotary shaft 33 is supported by the bearing 41 in the transmission case 38 and the lower part of the rotary shaft 33 is supported by the bearing 42 installed on the support bracket 39 so as to be rotatable about the axis. A rotary shaft 33 is supported so as to be rotatable about the axis.

  The transmission case 38 includes a driven bevel gear 43 that is attached to the upper end portion of the rotary shaft 33 and rotates integrally with the rotary shaft 33, and a main drive bevel gear 44 that always meshes with the driven bevel gear 43. The one end is attached and fixed to the other end of the left and right drive shaft 46 protruding from the transmission case 38 and is configured to rotate integrally with the drive shaft 46.

  The one end of the drive shaft 46 is close to the upper end side of the side wall 23, and a drive pulley 47 that rotates integrally with the drive shaft 46 is attached. Power from an engine 48 disposed so as to be substantially adjacent to the side wall 23 is transmitted to the drive pulley 47 by a belt, whereby engine power is transmitted to the rotary shaft 33. Incidentally, in the illustrated example, the engine power is transmitted to the drive pulley 47 by the output pulley 52 that rotates integrally with the output shaft 51 of the engine 48 and the transmission belt 53 wound around the drive pulley 47.

Next, the structure of the scattering prevention member and the guide member will be described with reference to FIGS.
The handling chamber 4 has a left and right rubber plate 28 </ b> A extending downward from the upper end side of the supply port 19 a and a left and right rubber plate extending downward from the upper end side of the discharge port 24 as scattering prevention members. 28B, and a hook-like member 29 made of an infinite number of yarns having a flexible lower end and extending in the front-rear direction so as to cover the side of the handling chamber 4 on the side of the feed chain 8 are provided. Yes.

  The upper end portions of the front and rear rubber plates 28A, 28B are attached and supported on the front wall 19 and the rear wall 21, respectively, and the rubber plates 28A, 28B normally extend downward in a side view, but the grain 2 The lower part is curved rearward in the conveying direction when passing. The two rubber plates 28A and 28B acting in this way can prevent the processing object 6 from scattering from the supply port 19a to the outside of the handling chamber 4 and the processing object 6 from the discharge port 24 to the outside of the handling chamber 4. The hook-shaped member 29 is suspended and supported by a support 54 that extends downward from the top plate 22, and an infinite number of yarns are elastically curved and deformed toward the handling chamber 4, thereby causing the handling chamber to move from the feed chain 8. While allowing the grain pod 2 to be inserted into 4, it normally covers the side of the feed chamber 8 in the handling chamber 4 to prevent the processing product 6 from scattering from the handling chamber 4 to the feed chain 8. Yes.

  The guide member provided in the handling chamber 4 is a round bar extending in the front-rear direction, and the guide member is arranged on the front side in the handling chamber 4 to support the tip 2b side of the cereal basket 2 from the lower side. A pair of left and right front guides 30L and 30R, a pair of left and right rear guides 31L and 31R that are arranged on the rear side in the handling chamber 4 and support the tip 2b side of the cereal basket 2 from the lower side, and the front in the handling chamber 4 Stock source side guide which is arranged closer to the feed chain 8 than the guides 30L, 30R and the rear guides 31L, 31R and supports the stock source 2a side to the midway side (stock source side in the illustrated example) from below. 32 are installed in the handling chamber 4.

  The pair of left and right front guides 30 </ b> L and 30 </ b> R project rearward from the lower end of the supply port 19 a in the front wall 19, and the front guide 30 </ b> R on one side of the left and right (right side in the illustrated example) It is a front-side front guide that supports the tip side of the tip 2b of the grain pod 2, and the front guide 30L on the other side of the left and right supports the side closer to the stock 2a of the tip 2b of the grain pod 2 in the handling chamber 4 It is a previous guide. In addition to this, the rear ends of the front guides 30L and 30R protrude to a position close to the rotation trajectory D, and the halfway front guide 30L moves toward the conveyance direction along the inclination of the conveyance path L. It is slightly inclined upward.

  The pair of left and right rear guides 31L and 31R project forward from the front end portion of the dust discharger top plate 17, and the rear guides 31R on one of the left and right sides (right side in the illustrated example) are grains in the handling chamber 4. It is a front-end side rear guide that supports the front end side of the tip 2b of the cocoon 2, and the rear guide 31L on the other side on the left and right sides supports the stock side of the tip 2b of the grain pod 2 in the handling chamber 4 It is. In addition to this, the front ends of the rear guides 31L and 31R protrude to a position close to the rotation trajectory D described above, and the intermediate rear guide 33L is a rear side in the transport direction along the inclination of the transport path L described above. It is slightly inclined upward.

  The stocker side guide 32 is installed and fixed between the lower end portion of the supply port 19a of the front wall 19 and the dust discharger top plate 17, and slightly tilts upward in the conveyance direction along the inclination of the conveyance path L described above. It is arranged on the feed chain side with respect to the rotation trajectory D described above.

  According to the threshing apparatus 1 configured as described above, as shown in FIG. 2, the conveying direction of the cereal husk 2 by the feed chain 8 intersects the vertical axis of rotation 33 of the handling cylinder 3, and further Specifically, since it is set in a substantially orthogonal direction, the tooth handling 34 moves along the reverse direction parallel to the conveying direction of the cereal basket 2. Thereby, it becomes difficult to produce the turbulent conveyance of the cereal basket 2, it becomes possible to perform a smooth threshing process, and the threshing efficiency is further improved. In addition, since the tooth-handling 34 acts so as to whisper the grain candy 2, it is also possible to prevent the grain candy 2 from being cut by the tooth handling 34.

  The five guide members 30L, 30R, 31L, 31R, and 32 facilitate the supply of the cereal 2 from the supply port 19a and the discharge of the cereal 2 from the discharge port 24, and the tip 2b in the handling chamber 4 The side of the grain basket 2 is prevented from drooping and the posture of the grain basket 2 is maintained well, and the scattering of the processed material 6 from the handling cylinder 3 side to the outside of the handling chamber 4 is prevented by the three scattering prevention members 28A, 28B, 29. Therefore, this also improves the efficiency of the threshing process.

  Furthermore, since the grain basket 2 is beaten by the tooth handling 34 on the front side as described above, the amount of fall of the processed material 6 to the sorting chamber is larger on the front side than on the rear side. In addition to being able to shorten the length, the front and rear length of the handling chamber 4 may be set to be slightly longer than the diameter of the handling barrel 3, so that the front and rear length of the handling chamber 4 can be set shorter.

2 Grain 2b Tip 3 Handling cylinder 4 Handling room 8 Feed chain (conveyance body)
30L Front side front guide (guide member, front guide)
30R Midway front guide (guide member, front guide)
31L Front end rear guide (guide member, rear guide)
31R Midway rear guide (guide member, rear guide)
32 Stockholder side guide 33 Rotating shaft 34 Teeth

Claims (2)

  A handling cylinder (3) that is driven to rotate around an axis, and a carrier (8) that conveys the cereal (2) with the tip (2b) facing the handling cylinder (3), A plurality of comb teeth (34) arranged in parallel along the axial direction of 3) are provided on the outer peripheral side of the barrel (3), and the cereal grains (2) conveyed by the conveyor (8) ) In a threshing apparatus that performs threshing treatment by a rotating barrel (3), and supports the barrel (3) so that the rotation axis (33) is substantially vertical, Threshing apparatus which comprised the conveyance body (8) so that the conveyance direction of 2) may become a substantially horizontal direction.   Rod-shaped guide members (30L), (30R) for supporting and guiding the cereals (2) conveyed by the conveying body (8) in the handling chamber (4) in which the handling cylinder (3) is installed. ), (31L), (31R), (32).

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