JP2006246719A - Threshing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To compose a threshing apparatus designed to smoothly transport grain culms during threshing without damaging a good surface forming a bow-shaped wall part in a receiving net. <P>SOLUTION: The threshing apparatus is equipped with a transport auxiliary member N in a position adjacent to a threshing port Y on the basis of the bow-shaped wall part W formed in the receiving net M. The transport auxiliary member N is mounted in a lower lip plate 35 and is provided with a guide part 38 having a guide surface to be a tilted posture where the plant foot side of the grain culms is lifted to the upstream side of the transport direction of the grain culms. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  According to the present invention, a handling cylinder that rotates around a front and rear axis is arranged inside a handling chamber, and a receiving net that is arcuate along the outer periphery of the handling cylinder is arranged below the handling cylinder. A throat having a bow-shaped wall portion that projects in the radial direction of the handle cylinder in a region along the circumferential direction of the handle cylinder, and a throat that is held and conveyed by the feed chain on the side surface of the handle chamber The present invention relates to a threshing apparatus that performs threshing by supplying the wire between a receiving net and a handling cylinder and moving the arched wall portion over the arched wall portion.

  As a threshing device configured as described above, a plurality of sheet metal arcuate members (vertical bars) arranged in a region along the rotation direction of the barrel, and a posture along the rotation axis direction of the barrel. A receiving net is formed by combining a plurality of straight steel members (horizontal crosspieces) provided in a lattice pattern, and some of the plurality of arc-shaped members forming the receiving net are closer to the handling cylinder than others. By projecting into a state, there is a device in which the arc-shaped member is also used as a bow-shaped partition plate (the arcuate wall portion of the present invention) (for example, see Patent Document 1).

JP 2001- 211728 A (paragraph numbers [0007] to [0013], FIGS. 2 and 4)

  As in the threshing device described in Patent Document 1, in the case where the receiving net is provided with an arched partition plate (the arched wall portion of the present invention), the tip portion of the cereal bowl conveyed by the feed chain is arched. When getting over the partition plate, the tip portion approaches the side of the handling cylinder, and the handling action of the handling cylinder is strongly received to promote grain threshing. However, as described in Patent Document 1, when a bow-shaped partition plate is formed in the receiving net portion, the tip of the kernel is brought into contact with the bow-shaped partition plate at the time of transporting the kernel. The posture in which the side is delayed to the upper side in the conveying direction, that is, the stock base part of the culm held by the feed chain falls into a posture that precedes the stylus side, so that the handling action of the handling cylinder on the cereal side of the cereal is reduced Sometimes it was inconvenient.

  In addition, when the tip part gets over the bow-shaped partition plate, it is impossible to avoid a phenomenon in which a strong force acts in the direction of suppressing the conveyance of the cereal, and a large load in the direction of suppressing the conveyance with the feed chain. Acted.

  As described above, the threshing performance is improved when the receiving net is provided with a bow-shaped partition plate. However, as described above, the posture of carrying the cereals becomes improper in the handling chamber, causing unhandled items, etc. In addition to lowering the threshing performance, there is room for improvement in terms of increasing the conveying load of the cereals in the feed chain.

  An object of the present invention is to rationally configure a threshing device that can smoothly transport cereal grains during threshing without impairing a good surface in which an arcuate wall portion is formed on the receiving net.

A feature of the present invention is that a handling cylinder that rotates around a front and rear axis is arranged inside the handling chamber, and an arc-shaped receiving net that is arranged along the outer periphery of the handling cylinder is arranged below the handling cylinder. An arcuate wall that protrudes in the radial direction of the handle cylinder is formed in the area along the circumferential direction of the handle cylinder on the upper surface of the receiving net, and the cereals that are nipped and conveyed by the feed chain are formed on the side surface of the chamber In the threshing apparatus for supplying threshing by moving between the receiving net and the handling cylinder from the handling mouth and moving in the form of getting over the arcuate wall,
A guide plate is provided between the end of the receiving net on the handling port side and the handling port to guide the stock of the cereal bud, and the handling port based on the arcuate wall portion of the guide plate A conveyance auxiliary member that lifts the cereal by contacting the stock side of the cereal held and conveyed by the feed chain at a position adjacent to the side, and the conveyance auxiliary member conveys the cereal by the feed chain The guide part which becomes the attitude | position which lifts a corn straw with the conveyance of the said corn straw is formed in the upper side of the direction.

  With this configuration, when the tip portion of the corn straw conveyed by the feed chain reaches the arcuate wall portion, the stock source side of the corn straw is lifted along with the conveyance by contacting the guide portion of the conveyance auxiliary member. Therefore, the force in the direction to suppress the conveyance acts simultaneously on the tip side and the stock side of the cereal, and only the tip side of the cereal is conveyed at the time of conveyance like a conventional threshing device. It is possible to suppress the phenomenon of falling in a posture that is delayed in the direction. Further, by smoothly lifting the stock side of the cereal for transport by the feed chain, the tip side can also be lifted smoothly at the same time, and the load acting on the cereal can be reduced. As a result, a threshing device that can smoothly convey cereals during threshing and reduce the load acting on the feed chain without impairing the point of improving threshing performance by forming an arcuate wall in the receiving net is reasonable. Configured.

  In the present invention, the protruding amount of the conveyance auxiliary member from the guide plate may be substantially equal to the protruding amount of the arcuate wall portion from the receiving net.

  With this configuration, when the head of the cereal is brought into contact with the arcuate wall, the stock side of the cereal is lifted by an amount equal to the amount by which the tip of the cereal is lifted. There is no reason to move.

  In the present invention, a guide portion may be formed on the upper side of the bow-shaped wall portion in the conveying direction of the cereals by the feed chain so as to lift the culm along with the transportation of the cereals.

  With this configuration, when the head side of the cereal passes over the arcuate wall, the tip side is also lifted smoothly with the movement of the culm, and the load acting on the feed chain can be further reduced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a handling chamber A is arranged at the upper portion, a swing sorting portion B is placed at the lower portion of the handling chamber A, and a tang 1 that supplies sorting air to a position below the swing sorting portion B is provided. The threshing apparatus which is disposed and is disposed on the combine by arranging the diffusion cylinder 2 and the dust exhaust fan 3 on the rear side of the handling chamber A is configured.

  As shown in FIGS. 1 and 2, inside the chamber A, a handling cylinder 5 having a large number of teeth 5A projecting on the outer peripheral surface is supported so as to be driven to rotate about an axis X in a front-back orientation. A receiving net M having an arc shape along the outer periphery of the handling cylinder 5 is disposed below the handling cylinder 5, and a handling mouth Y is formed on the side surface of the handling chamber A. A feed chain 6 for supplying the air and a guide rail 7 are provided. In the rear position of the handling chamber A, there is provided a waste straw chain 8 that feeds the waste straw from the feed chain 6 (the grain after the handling process).

  The swing sorting portion B forms a first gren pan 11 at a front end position of a sheave case 10 that swings in the front-rear direction, and includes a chaff sheave 12 at a rear position of the first glen pan 11, and a second lower portion of the chaff sheave 12. A Glen pan 13 and a Glen sheave 14 are provided, a first Strollac 15 is provided at an upper position of the chaff sheave 12, and a second Strollac 16 is provided at a rear position thereof.

  A No. 1 screw 21 that collects the grain is disposed below the Glen sheave 14, and a No. 2 screw 22 that collects a processed product that is not sufficiently granulated is disposed at the rear position. The No. 1 screw 21 is arranged in a horizontal posture so as to convey the recovered grain in the horizontal direction, and the grain recovered by the No. 1 screw 21 is transferred to a grain tank (not shown) by a grain tank (not shown). (Not shown). The processed product collected by the second screw 22 is returned to the swing sorting unit B by the reduction device 23.

  In this rocking sorting part B, the grain and straw scraps are separated by the specific gravity sorting by rocking and the sorting wind from the Kara 1 and the grain is collected in the first screw 21 and needs to be reprocessed. The processed material is recovered by the # 2 screw 22 and returned to the swing sorting part B, and the waste waste discharged from the handling chamber A is discharged from the rear end of the apparatus by the exhaust wall chain 8 and is generated in the apparatus. Is discharged out of the apparatus by the dust exhaust fan 3.

  As shown in FIGS. 2 to 4, the receiving net M has a plurality of horizontal frames 31 formed in an arc shape along the rotation direction of the handle cylinder and a plurality of parallel frames with the rotation axis X of the handle cylinder 5. The vertical rods 32 are combined in a lattice pattern. The receiving net M has a function of forming a large number of meshes (mesh) by combining a plurality of horizontal frames 31 and a plurality of vertical rods 32 in a lattice pattern, thereby allowing the processed material to leak.

  By making the width (the dimension in the radial direction of the handling cylinder) of a part 31A of the plurality of horizontal frames 31 larger than the other horizontal frames 31, the horizontal frame 31 is projected to the handling cylinder side. An arcuate wall W is provided. A plurality of the arcuate wall portions W are formed in the receiving net M, but may be a single one.

  The bow-shaped wall portion W functions to promote the handling process by moving the tip side of the culm to get over the handle cylinder 5 by moving in the form that the tip of the culm gets over when the cereal is moved. In order to smoothly carry over the tip of the cereals in the arched wall W, an inclined plate 33 (guide) shown in FIG. The inclined plate 33 is arranged in an inclined posture so as to come into contact with the tip side along with the conveyance of the cereal and lift the tip side to the handling barrel side to easily get over the arcuate wall portion W. ing.

  As shown in FIG. 5, a lower lip plate 35 (an example of a guide plate) is formed between the handle Y and the side portion of the receiving net M. The lower lip plate 35 is provided in an inclined posture in which the mouthpiece side is at the highest level and the receiving network side is at a lower level. Of the lower lip plate 35, the level at the end on the mouthpiece side is set to a position close to the level at which the cereals are conveyed by the feed chain 6, and the upper surface of the end on the receiving net side is the upper surface of the receiving net M The level is set to match.

  As shown in FIG. 4, the lower lip plate 35 is positioned adjacent to the mouth opening side with respect to the arcuate wall portion W, on the stock side of the cereals that are nipped and conveyed by the feed chain 6. It has a conveyance auxiliary member N that comes into contact with and lifts the cereal. That is, the conveyance assisting member N is disposed at a plurality of locations located on the extended lines in the formation direction of the plurality of arcuate wall portions W in plan view.

  As shown in FIG. 6, the conveyance assisting member N is formed by integrally forming a main body 36, an attachment leg 37, and a guide part 38 using a metal material, and the attachment leg 37 and the guide part 38. It is fixed to the lower lip plate 35 by bolts 39 inserted through the through holes H formed respectively. The conveyance auxiliary member N may be manufactured by resin molding.

  The main body 36 is a wall-like member arranged on an extension line in the formation direction (longitudinal direction) of the arcuate wall portion W, and the height from the lower lip plate 35 is made to coincide with the height of the arcuate wall portion W. Yes. In addition, the guide portion 38 has a tilted guide surface 38G that comes into contact with the culm with the transport of the cereal and lifts the contact portion on the upper side in the transport direction of the cereal by the feed chain 6; A support surface 38 </ b> S for receiving the cereal stock from the mouth side is formed.

  Thus, when threshing is performed with this threshing apparatus, the tip side of the cereal culm with the stock side sandwiched between the feed chain 6 and the guide rail 7 is handled together with the drive of the feed chain 6. Supplied between the trunk 5 and the receiving net M. Thus, when the cereal is supplied, the stock side of the cereal is transported in a form in contact with the lower lip plate 35, and the tooth handling 5A of the barrel 5 comes into contact with the end of the tip, and the tip side arrives. The handling process which isolate | separates a grain from a grain part (threshing) is performed.

  When this handling process is performed, the tip side of the culm gets over the arcuate wall W with the movement of the stock side of the culm by driving the feed chain 6, and the tip side is on the side of the barrel when overcoming this The handling process is promoted by being lifted up by the angle.

  In addition, an inclined plate 33 is arranged on the upper side of the bow-shaped wall portion W in the grain-carrying direction, and the conveyance auxiliary member N is arranged at a position adjacent to the mouth side with respect to the arcuate wall portion W. In addition, a guide portion 38 is formed on the conveyance auxiliary member N. Accordingly, when the cereal is transported, a force acts in a direction that prevents the transport of the cereal from the bow-shaped wall portion W and the transport assisting member N. Since the stock side of the cereals gets over the conveyance auxiliary member N at the same timing as the timing of getting over, for example, it does not fall into the conveyance posture in which the tip side is delayed. In addition, when the tip side gets over the arcuate wall W, it is guided and lifted by the inclined plate 33, and when the stock side gets over the conveyance auxiliary member N, it is guided by the guide surface 38G of the guide part 38. Thus, an increase in load when conveying the cereal straw is suppressed.

  Incidentally, among the processed products obtained by supplying between the handling cylinder 5 and the receiving net M, the processed products containing a large amount of single grains are allowed to leak from the receiving net M and the swing sorting section B. To be supplied. In this oscillating sorting part B, the grain is leaked from the chaff sheave 12 while performing the specific gravity selection by oscillating, and further the fine straw scraps mixed in the cereal by acting the sorting wind from the Kara 1 After being blown away, the first screw 21 is used for recovery. The grains thus collected are stored in a glen tank (not shown).

  Further, the processed material that could not leak through the receiving net M falls from the rear end portion of the receiving net M to the first stroller 15. Most of the processed products received by the first Strollac 15 are relatively large straw scraps, and the straw scraps are loosened in the diffusion cylinder 2 to separate the grains, and the separated grains and single grains are separated. Grains that are insufficiently converted are recovered by the # 2 screw 22 and reduced to the swinging selection section B by the reduction device 23, and the selection is performed again.

[Another embodiment]
The present invention may be configured as follows in addition to the embodiment described above.

(A) In order to form the arcuate wall portion W in the receiving net, a member having an arc shape is manufactured using a material such as metal or tough resin, and the member is formed in a form to be attached to the receiving net. In this way, in the case where the arcuate wall portion W is formed using a member separate from the receiving net, the guide portion (inclined plate 33) can be formed integrally, the mounting position can be arbitrarily set, and replacement is easy. Become.

(B) The receiving net M is manufactured using a punching metal, a crimp net, or a resin net.

(C) When the lower lip plate 35 (guide plate) is pressed to form the conveyance auxiliary member N, a portion corresponding to the conveyance auxiliary member N is projected so as to be integrated with the lower lip plate 35. Form.

(D) In order to form the conveyance auxiliary member N, resin is used as the material of the lower lip plate 35, and the conveyance auxiliary member N is formed integrally by blow molding, or the conveyance auxiliary member N is formed by blow molding. Integrally formed.

(E) The threshing apparatus of the present invention may be provided in an apparatus that operates without moving the machine body, such as a harvester.

Longitudinal side view of threshing device Longitudinal front view showing the structure of the treatment room Longitudinal side view of receiving net Plan view showing the part of the lower lip plate from the end of the receiving net Longitudinal front view showing the mounting position of the auxiliary conveyance member The perspective view which shows the structure of a conveyance auxiliary member

Explanation of symbols

5 Handling cylinder 6 Feed chain 33 Guide part: Inclined plate 35 Guide plate: Lower lip plate 38 Guide part A Handling chamber M Receiving net N Transport auxiliary member W Arcuate wall part X Axis core Y Handle

Claims (3)

A handling cylinder that rotates around the front and back axis is arranged inside the handling chamber, and an arc-shaped receiving net is arranged under the handling cylinder at the lower side of the handling cylinder. An arched wall portion that projects in the radial direction of the handle cylinder is formed in a region along the circumferential direction of the handle cylinder, and the receiving net is formed from the handle mouth formed on the side surface of the chamber with the cereals that are nipped and conveyed by the feed chain A threshing device that performs threshing by feeding between the barrel and the barrel and moving it over the arcuate wall,
A guide plate is provided between the end of the receiving net on the handling port side and the handling port to guide the stock of the cereal bud, and the handling port based on the arcuate wall portion of the guide plate A conveyance auxiliary member that lifts the cereal by contacting the stock side of the cereal held and conveyed by the feed chain at a position adjacent to the side, and the conveyance auxiliary member conveys the cereal by the feed chain A threshing device which forms a guide portion on the upper side in the direction to be in a posture to lift the culm with the transport of the cereal.   The threshing apparatus according to claim 1, wherein a protruding amount of the conveyance auxiliary member from the guide plate is substantially equal to a protruding amount of the arcuate wall portion from the receiving net.   The guide part used as the attitude | position which raises a corn straw with conveyance of the said corn straw is formed in the upper side of the conveyance direction of the corn straw by the said feed chain among the said arcuate wall parts. Threshing device.

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