JP2008043264A - Structure of sorting part of thresher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve a structure of a sorting part of a thresher, having high sorting efficiency by devising the structure of a sieve member. <P>SOLUTION: The structure of the sorting part of the thresher 1 equipped with a grain pan 6, a chaff sieve 7 and a rotary fan 14 feeding sorting air to an end terminal part of the grain pan 6 has a sieve member 15 at the end terminal of the grain pan 6. The sieve member 15 is extended from the end terminal part of the grain pan 6 to the downstream side of conveyance of a treated material in a cantilever shape, and is constituted of an elastic member. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sorting unit structure of a threshing apparatus including a rotary fan that supplies sorting wind toward a terminal end of a Glen pan.

  As a conventional technique, for example, as disclosed in Patent Document 1, a sieving line as an example of a sieving member is provided at the end of a Glen pan to promote separation of grain and sawdust, And a screening unit structure of a threshing device that is configured to improve the efficiency of sorting waste and a screening line that is an example of a screening member provided at the end of a Glen pan as disclosed in Patent Document 2. 2. Description of the Related Art There is known a screening unit structure of a threshing device that is configured to promote vertical separation of grain and swarf by swinging up and down, thereby improving the screening efficiency of grain and swarf.

JP-A-11-225560 JP 2000-201524 A (FIGS. 4 and 6)

  As disclosed in Patent Document 1, a sieving line is provided at the end of the grain pan, and by this sieving line, a lump of the processing material falling from the gren pan to the chaff sheave is broken up or the processing object is sprinkled up. It is thought that separation of grain and sawdust can be promoted. Moreover, as disclosed in Patent Document 2, when the sieve line provided at the end of the Glen pan is swung up and down, the mass of the processed material can be efficiently solved as compared with the case where the sieve line is fixed. It is considered that the processed product can be raised up high, and the separation of the grain and the sawdust can be further promoted.

However, like the sieve line described in Patent Document 2, when the sieve line is swung up and down by interlocking the swing sorter and the sieve line using an arm or a roller, the roller swings the swing sorter. It moves back and forth regularly with respect to the movement, and the sieving line swings at a constant speed. Therefore, for example, when the amount of the processed material increases or decreases, it is considered that a difference occurs in the sorting efficiency by the sieving line. Therefore, if the sieving line can be swung quickly and irregularly, the lump of the processed material can be solved more efficiently, the processed material can be further raised upward, and the sorting efficiency can be improved. It is thought that you can.
An object of the present invention is to realize a sorting unit structure of a threshing device with high sorting efficiency by devising a structure of a sieving member.

[I]
(Constitution)
According to a first aspect of the present invention, there is provided a swing sorting device below a handling chamber, and the swing sorting device receives a processed material dropped from the handling chamber and performs a sorting process while transporting, In the sorting unit structure of the threshing apparatus, which includes a chaff sheave that performs sorting processing while inheriting and transferring the processed material from the grain pan, and includes a rotating fan that supplies the sorting wind toward the terminal end of the grain pan, the configuration is as follows: There is to do.
A sieve member is provided at the end of the Glen pan,
The sieving member is extended in a cantilevered manner from the end of the grain pan toward the lower conveyance side of the processed material, and the sieving member is constituted by an elastic member.

(Function)
According to the first feature of the present invention, when the end portion of the grain pan is provided with the sieving member, the swing sorting device oscillates, and when the processed material is supplied to the end portion of the glen pan, the processed material becomes the sieving member. It hits. When the processed material hits the sieving member, a lump of the processed material can be unraveled, and the processed material can be flipped upward, thereby promoting separation of the grain and swarf.

  According to the first feature of the present invention, the sieving member extends in a cantilevered manner from the terminal end of the grain pan toward the lower conveyance side of the processed material, and the sieving member is formed of an elastic member, whereby the swing sorting device is When swinging, the sieving member extending in a cantilevered manner toward the lower conveyance side of the processed product swings up and down by the elastic deformation of the sieving member itself composed of an elastic member, with the end portion of the Glen pan as a fulcrum. Then, in addition to the swing of the swing sorting device, the restoring force due to the elastic deformation of the sieve member itself acts on the sieve member, and the sieve member can be swung quickly and irregularly.

  According to the first feature of the present invention, the sieving member is extended in a cantilevered manner from the end portion of the grain pan toward the lower conveyance side of the processed material, and this sieving member is constituted by an elastic member. As in the case of the sieving wire described in (1), a structure for swinging using an arm, a roller or the like is not necessary.

(The invention's effect)
According to the first feature of the present invention, since the separation of the grain and the sawdust can be promoted, when the sorting air is supplied from the rotary fan toward the end of the Glenpan, the heavy grain of its own weight falls. The light weight of the sawdust is supplied to the downstream side of the processed material on the sorting wind. Therefore, grains and sawdust can be selected.

  According to the first feature of the present invention, since the sieving member can be quickly and irregularly swung, it is possible to efficiently unravel the lump of the processed material and to bounce the processed material high upward. It is done. Therefore, it is considered that the separation of the grain and the sawdust can be further promoted, and the sorting efficiency of the grain and the sawdust can be improved.

  According to the first feature of the present invention, since a structure for swinging using an arm, a roller, or the like is not required, a structure for swinging the sieving member can be realized simply. Therefore, the number of parts is reduced, and the manufacturing cost can be reduced.

[II]
(Constitution)
The second feature of the present invention resides in the following configuration in the screening unit structure of the threshing device of the first feature of the present invention.
The sieving member is provided with an inclined portion extending toward the upper side on the lower conveyance side of the processed product.

(Function)
According to the second feature of the present invention, the “action” described in the preceding item [I] is provided in the same manner as the first feature of the present invention, and in addition to this, the following “action” is provided.
According to the second feature of the present invention, the sieving member is provided with an inclined portion extending upward toward the lower side of the workpiece to be conveyed, whereby the oscillating sorting device is oscillated, and the end portion of the Glen pan is processed. When the product is supplied and the processed product hits the sieving member, the processed product is sprung up toward the conveyance upper side by the inclined portion of the sieving member. That is, it is possible to add a change in the conveying direction as well as the vertical direction to the processed material that is flipped up. Therefore, it is considered that a large amount of grain and sawdust can be diffused by the inclined portion of the sieving member.

(The invention's effect)
According to the second feature of the present invention, the “effect of the invention” described in the preceding item [I] is provided in the same manner as the first feature of the present invention. In addition, the following “effect of the invention” is provided. ing.
According to the 2nd characteristic of this invention, since it is thought that many grains and swarf can be spread | diffused by the inclination part of a sieving member, isolation | separation of a grain and swarf can further be accelerated | stimulated, and grain It is considered that the sorting efficiency of grains and sawdust can be improved.

  FIG. 1 shows a threshing apparatus 1 mounted on a combine. In the best mode for carrying out the present invention, in order to show an example in which the threshing apparatus 1 is mounted on a combine, the left side in FIG. 1 corresponds to the upper conveyance side of the processed material, and the right side in FIG. 1 corresponds to the lower conveyance side of the processed product, and the front side in FIG. 1 corresponds to the feed chain 2 side (the same applies to FIGS. 2 and 3). In the following description, the upper side of the processed product is indicated as the front, and the lower side of the processed product is indicated as the rear.

  As shown in FIG. 1, the threshing apparatus 1 is provided with a handling chamber A on the upper side, a swing sorting apparatus B on the intermediate side, and a recovery apparatus C on the lower side. In the threshing device 1, a handling cylinder 3 for handling the harvested cereal while being held and conveyed by the feed chain 2 is pivoted on the handling chamber A, and the receiving net 5 for leaking the treated product. Is disposed below the barrel 3.

  The swing sorting device B includes a grain pan 6 that receives the processed material leaked from the receiving net 5, a chaff sheave 7 and a strolacac 8 that are sequentially positioned behind the grain pan 6, and a grain sheave 9 that is positioned below the chaff sheave 7. And is mounted on a sheave case 16 that is driven to swing back and forth.

  The recovery device C includes a tang 10 located on the lower side of the grain pan 6 and a first thing transporting screw that collects the leakage (first thing) from the grain sheave 9 below the grain sieve 9 and laterally feeds it to the horizontal side. 11, and a second article conveying screw 12 that collects leaked material (second article) from the grain sheave 9, the chaff sheave 7, etc. and laterally feeds it to the horizontal one side, and the first article conveying screw 11 and the second article. A sorting fan 13 that is located between the product transporting screws 12 and that supplies the sorting air toward the upper side of the second product transporting screw 12 is disposed.

  Below the front part of the swing sorter B, in front of the tang 10, there is a rotating fan 14, which is guided by the upper fan case 18 and the lower fan case 19 and is provided at the end of the Glen pan 6. It is comprised so that a selection wind may be supplied toward. Further, a rotating drum 17 is provided at the lower rear of the handling drum 3, and the processed material discharged from the rear end of the handling drum 3 is processed by the rotating drum 17 so as to take out grains from dust. In addition, a dust exhaust fan 4 for discharging the sawdust to the outside of the machine is disposed behind the rotating drum 17.

  As shown in FIGS. 2 and 3, a sieving member 15 that extends rearward from the terminal end of the grain pan 6 is supported in a cantilevered manner at the terminal end of the grain pan 6. The sieving member 15 includes a horizontal portion 15a that is detachably fixed to the end portion of the grain pan 6, and an inclined portion 15b that extends obliquely rearward and upward from the rear end portion of the horizontal portion 15a. . As shown in FIG. 3, by forming a plurality of recesses 15c opened rearward on the inclined portion 15b over the entire surface, the inclined portion 15b has a flat plate shape (strip shape) having a predetermined lateral width in plan view. It is comprised so that it may become. In this way, by configuring the inclined portion 15b to have a strip shape, it is possible to secure a wide area where the processed object hits the sieving member 15, so that a large amount of the processed object can be bounced up. Can diffuse a lot.

  The sieving member 15 is configured by bending a thin spring steel plate into the shape described above, and the sieving member 15 is configured by this spring steel plate when the oscillating sorting device B oscillates. The slanted portion 15b of the sieving member 15 formed into a strip shape is elastically deformed so as to swing up and down quickly and irregularly by the restoring force due to the elastic deformation with respect to the movement of the swing sorting device B. Has been. In this way, by configuring the sieving member 15 with a spring steel plate, for example, as in the sieving wire (28) described in Patent Document 2, a swing sorter ( 25) and the sieving wire (28) can be linked to each other (the part in () is the part number in Patent Document 2), and the structure for swinging the sieving member 15 can be realized simply. Therefore, the number of parts is reduced, and the manufacturing cost can be reduced.

  FIG. 2 is a schematic view showing a state where the processed product is supplied from the grain pan 6 toward the chaff sheave 7. As shown in FIG. 2, when the processed product handled by the handling cylinder 3 falls on the grain pan 6, the processed product gradually moves backward on the upper part of the grain pan 6 due to the swing of the swing sorting device B. Then, it is supplied to the position of the sieving member 15 provided at the terminal portion of the Glen pan 6. A part of the processed material supplied to the position of the sieving member 15 falls from the recess 15 c provided in the sieving member 15 toward the chaff sheave 7. When the sorting air is supplied from the rotary fan 14 to the position where the treated product falls, the heavy grain falls toward the chaff sheave 7 and the swarf contained in the light weight treated material rides on the sorting wind. Then it is conveyed backward.

  The inclined portion 15b formed in a strip shape of the sieving member 15 swings up and down in the direction of the arrow shown in FIG. 2 with the position of the horizontal portion 15a of the sieving member 15 as a fulcrum by the swing of the swing sorting device B. When the processed product supplied to the position of the sieving member 15 hits the inclined portion 15b, the processed product that hits the inclined portion 15b is bounced up diagonally forward and falls again on the gren pan 6 or the sieving member 15. Thus, it is thought that the lump 15b of the sieving member 15 can efficiently unravel the lump of the processed material, can leap the processed material high up, and can diffuse a large amount of the processed material. It is done.

  The processed material diffused by the inclined portion 15b of the sieving member 15 is supplied again to the sieving member 15 and passes through the concave portion 15c provided in the sieving member 15. Is supplied, and the heavy grain falls to the chaff sheave 7, and the sawdust contained in the light weight processed material is transported backwards in a sorting wind, thereby the grain contained in the processed material. It can be separated from the sawdust.

[First Alternative Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention], an example is shown in which the sieving member 15 is formed of a bent spring steel plate. However, the material of the sieving member 15 is a spring steel plate if it is an elastic member. For example, a resin plate, a plastic plate, a hard rubber plate, or the like may be employed.

  In the above-mentioned [Best Mode for Carrying Out the Invention], an example in which the sieving member 15 is configured by a plate material has been shown. However, the elastic member is not limited to a plate material, and for example, a bar-shaped sieving member 15 is configured. May be.

[Second Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention] and [First Alternative Embodiment], an example in which the threshing device 1 mounted on a combiner is provided with a sieving member 15 is shown. The threshing apparatus 1 is not limited to the threshing apparatus 1, and is also applicable to the threshing apparatus 1 mounted on a harvester (not shown) that does not include a cutting part (not shown).

Longitudinal side view of threshing device Longitudinal side view showing structure of sieve member and sorting state Cross-sectional plan view showing the structure of the sieve member

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Threshing apparatus 6 Glen pan 7 Chaff sheave 14 Rotating fan 15 Sieve member 15b Inclined part A Handling room B Oscillating sorter

Claims (2)

A swing sorting device is provided below the handling chamber, and the swing sorting device receives and conveys the processed material dropped from the handling chamber, and transfers the processed material from the grain pan. A sorting unit structure of a threshing apparatus comprising a chaff sheave that performs sorting processing and a rotating fan that supplies a sorting wind toward the end of the Glenpan,
A sieve member is provided at the end of the Glen pan,
The screening part structure of the threshing device, wherein the sieving member is extended in a cantilevered manner from the end of the grain pan toward the lower conveyance side of the processed product, and the sieving member is formed of an elastic member.   The sorting part structure of the threshing apparatus according to claim 1, wherein the sieving member is provided with an inclined part that extends upward toward the lower conveyance side of the processed product.

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