JP2010148463A - Threshing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a threshing machine for wind-sorting cereal grains, etc., sorted by specific gravities with a rocking sorting body, by sorting wind in a good efficiency. <P>SOLUTION: This threshing machine is equipped with a threshing part for threshing conveyed-in cereal culms and a sorting part for sorting the cereal grains threshed by the threshing part, and also equipped with a rocking sorting unit performing the specific gravity sorting by rocking in front and rear direction and a fanning mill for performing the wind-sorting by blowing the sorting wind in the sorting part is provided by arranging the fanning mill in the frontal lower direction of the rocking sorting unit, and a sorting wind upper-guiding body for guiding the sorting wind in the upper direction at the upper part in the rear direction of the fanning mill, and on the one hand since a sorting wind rear direction-guiding body for guiding the sorting wind which is guided in the upper direction through the sorting wind upper direction-guiding body, in rear direction is arranged at the rocking sorting unit, it is possible to guide the sorting wind surely from the frontal part and facing to rear direction of the rocking sorting unit by the sorting wind rear direction-guiding body. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a threshing machine including a threshing unit and a sorting unit.

  Conventionally, as one form of a threshing machine, a threshing unit that threshs the cereal that has been carried in, and a sorting unit that sorts the grain threshed by the threshing unit, and the sorting unit swings back and forth. In particular, there is a rocking sorter that performs specific gravity sorting and a tang that performs wind sorting by blowing a sorting wind (see, for example, Patent Document 1).

  Further, the red pepper is disposed in front of and below the swinging sorter so as to blow an underslow sorting wind from the same sort toward the swinging sorter (from the front lower side to the rear upper side). Further, the swing sorter is provided with a feed pan, a chaff sheave disposed below the feed pan, and a grain sheave disposed below the chaff sheave.

Here, a plurality of sorting wind guides are arranged at the rear position of the tang, and the sorting wind is guided between the feed pan and the chaff sheave or between the chaff sheave and the Glen sheave through the sorting wind guides. ing.
JP 2000-139183 A

  However, in the above threshing machine, since a plurality of sorting wind guide bodies are arranged at the rear position of the Karatsu, the sorting wind is blown rearward along the upper surface of the chaff sheave from the Karatsu to improve the wind sorting efficiency. It was difficult. Further, since the above-described threshing machine only blows a selected wind having a constant wind pressure in a fixed wind path, a large tang for blowing a predetermined air volume is required to ensure the wind sorting efficiency. For this reason, it has been difficult to reduce the size of the tang and reduce the size of the threshing machine itself.

  (1) The threshing machine according to the present invention as set forth in claim 1 includes a threshing unit for threshing the carried cereal straw, and a sorting unit for sorting the grains threshed by the threshing unit. In a threshing machine equipped with a rocking sorter that swings in the front-rear direction and performs specific gravity sorting, and a karakoshi that blows the sorting wind and performs wind sorting, a red pepper is arranged below the front of the rocking sorter. In addition, a sorting wind upper guiding body for guiding the sorting wind upward is arranged at the upper rear of the same carp, while the sorting wind guided upward through the sorting wind upper guiding body to the swing sorting body is guided rearward. The sorting wind rear guiding body is arranged.

  (2) The threshing machine according to the present invention described in claim 2 is the threshing machine according to claim 1, wherein the swing sorter includes a feed pan, a chaff sheave disposed below the feed pan, The sieve is arranged below the feed pan and in front of the chaff sheave. The sorting wind rear guide body is located above the sorting wind upper guide body. The sorting air guided to the top of the chaff sheave through the feed pan and the chaff sheave is branched and guided to the lower flow path that leads between the chaff sheave and the Glen sheave. Features.

  (3) The threshing machine according to the present invention described in claim 3 is the threshing machine according to claim 2, wherein the sorting wind rear guiding body swings in the front-rear direction integrally with the swing sorting body. The starting end side flow path diameters of the upper flow path and the lower flow path are alternately expanded and reduced so that the wind pressure of the selection air guided to the upper flow path and the lower flow path is changed alternately. .

  (1) According to the present invention of claim 1, the threshing unit for threshing the cereals that have been carried in and the sorting unit for sorting the grains threshed by the threshing unit are provided. In a threshing machine comprising an oscillating sorter that moves and sorts specific gravity, and a tang that blows the selected wind and performs wind sorting, the culm is arranged below the front of the oscillating sorter. A sorting wind rear guide that guides the sorting wind upward through the sorting wind upper guide to the swinging sorting body is provided on the rear side of the sorting wind upper guide that guides the sorting wind upward. The body is arranged.

  Thus, since the sorting wind rear guiding body for guiding the sorting wind guided upward through the sorting wind upper guiding body to the rear is arranged on the swinging sorting body, the swinging sorting body is shaken by the sorting wind rear guiding body. The sorting wind can be guided firmly from the front of the moving sorter to the rear. As a result, it is possible to efficiently sort the grains and the like that are selected by the rocking sorter with the sorting wind.

  (2) The present invention of claim 2 is the threshing machine according to claim 1, wherein the rocking sorter includes a feed pan, a chaff sheave disposed below the feed pan, and a lower portion of the chaff sheave. And a sorting wind rear guide body disposed below the feed pan and in front of the chaff sheave. The sorting wind rear guide body is guided upward through the sorting wind upper guide body. The wind is branched and guided to an upper flow path that leads to the upper side of the chaff sheave through between the feed pan and the chaff sheave and a lower flow path that leads between the chaff sheave and the Glen sheave.

  In this manner, the sorting wind rear guide body guides the sorting wind guided upward through the sorting wind upper guide body to the upper flow path leading to the upper side of the chaff sheave, and the lower flow path leading between the chaff sheave and the Glen sheave. Since they are branched and guided, the sorting efficiency can be improved by a synergistic effect of the specific gravity sorting effect by the chaff sheave and the wind sorting effect by the sorting wind.

  (3) The present invention of claim 3 is the threshing machine according to claim 2, wherein the sorting wind rear guiding body swings in the front-rear direction integrally with the swing sorting body, The starting end side channel diameter of the lower channel is alternately expanded and contracted so that the wind pressure of the selection air guided to the upper channel and the lower channel is changed alternately.

  In this way, the wind pressure of the sorting wind guided to the upper flow path and the lower flow path is alternately changed in conjunction with the back and forth swinging motion of the swing sorting body, so that the wind pressure of the sorting wind is intermittent. Strong and strong winds with high wind sorting effect can be obtained alternately. As a result, the selection efficiency can be further improved by the synergistic effect of the specific gravity selection effect by the chaff sheave and the wind selection effect by the selection wind.

  An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view of a combine C equipped with a threshing section as a threshing machine according to the present invention, and FIG. 2 is a sectional side view of a threshing section, a dust disposal section, and a sorting section.

  As shown in FIG. 1, the combine C has a machine body frame 1 disposed on a pair of left and right crawler type traveling units 2, 2, and cereals are added to the left front end of the machine body frame 1 via a lifting mechanism 11. A mowing part 3 for mowing is attached so as to be rotatable up and down. The harvesting unit 3 is provided with a transport mechanism 12 that transports the harvested culm. A threshing unit 5 for threshing the transported cereal is disposed at the front left side of the machine body frame 1, which is the rear position of the transport mechanism 12. In the rear position of the threshing unit 5, a dust discharge processing unit 6 that performs dust discharge processing on the threshed cereals is disposed. Below the threshing unit 5 and the dust removal processing unit 6, a sorting unit 7 that sorts the threshed grain into the first grain and the second grain is disposed. A driving unit 8 and a motor unit (not shown) are arranged vertically on the right front part of the machine body frame 1, and a grain storage unit 10 is disposed at a position behind the driving unit 8 and the motor unit. is doing. Reference numeral 13 denotes a grain carry-out section linked to the grain storage section 10, and reference numeral 14 denotes an excretion processing section disposed at the rear part of the body frame 1. The drive unit is configured to drive other units.

  In this way, in the combine C, the cereals harvested by the reaping unit 3 are conveyed to the threshing unit 5 by the conveying mechanism 12 and threshed, and are subjected to dust removal processing by the dust disposal processing unit 6, Exclusion processing is performed by the exclusion processing unit 14. In addition, the threshed grain and the dust-treated grain are sorted into the first grain and the second grain by the sorting unit 7. The first grain selected by the sorting unit 7 is transported and stored in the grain storage unit 10, and is then carried out by the grain carrying-out unit 13. The second grain selected by the selection unit 7 is subjected to the selection process again. The threshed cereal, that is, the waste, is subjected to a waste treatment by being sheared by the waste treatment unit 14.

  As shown in FIG. 2, the threshing unit 5 has a handling cylinder 22 mounted between the front and rear walls 20 a and 20 b of the handling chamber 20 via a handling cylinder shaft 21 having an axis line in the front-rear direction. The handling cylinder 22 is biased to the left side of the handling chamber 20 and pivoted, and a cereal carry-in entrance 23 communicating with the transport mechanism 12 is formed in the lower part of the front wall 20a by opening in the front-rear direction and the left side. On the other hand, a waste outlet 24 is formed in the lower part of the rear wall 20b so as to open in the front-rear direction and the left side and communicate with the dust disposal unit 6. A feed chain 25 (see FIG. 1) is disposed on the left side wall of the handling chamber 20 in a erected manner.

  In this way, the cereals inherited from the transport mechanism 12 by the feed chain 25 are threshed by being transferred through the handling chamber 20 through the cereal carry-in entrance 23, carried out through the evacuation exit 24, It is made to transfer from the process part 6 to the exclusion process part 14. FIG.

  As shown in FIG. 2, the handling cylinder 22 is formed of a cylindrical peripheral wall portion 26 having an axis line in the front-rear direction and front and rear end wall portions 27, 28, and the peripheral wall portion 26 occupies most. It is formed of a large diameter portion 26a as a main body and a small diameter portion 26b having a stepped small diameter located at the rear end. 29a is a tooth-handling projecting from the large-diameter portion 26a, and 29b is a tooth-handling projecting from the small-diameter portion 26b. And the protrusion length of the tooth-handling 29b of the small diameter part 26b is formed long so that the rotation locus | trajectory of each front-end | tip of the tooth-handling 29a of the large diameter part 26a and the tooth-handling 29b of the small diameter part 26b may become substantially the same.

  Front and rear receiving net support walls 30 and 31 are arranged in a front-rear facing state at positions immediately below the front and rear portions of the large-diameter portion 26a. Both front / rear receiving net support walls 30 and 31 are formed by extending a thin plate-like body whose longitudinal end face is located at the top and bottom in an arc shape in the left-right width direction along the peripheral surface of the large-diameter portion 26a. Thus, it is installed between the left and right side walls forming the handling chamber 20. An arc shape along the circumferential surface of the barrel 22 between the front mesh support wall 30 and the midway portion in the vertical direction of the rear surface of the front mesh support wall 30 and the vertical midway portion of the front surface of the rear mesh support wall 31. It is bent in a detachable manner. In this way, while the tip of the grain pod is transferred rearward between the peripheral wall portion 26 of the handle 22 and the receiving net 32, the threshing is carried out by the teeth 29a and 29b of the rotating handle 22. I have to. The handling cylinder 22 is rotated clockwise in front view.

  As shown in FIG. 2, the dust removal processing unit 6 is provided with a suction dust discharge fan 34 obliquely above and behind the dust delivery port 33 of the handling chamber 20. 35 is a fan cover that covers the suction dust exhaust fan 34, 36 is a discharge path forming body disposed behind the suction dust exhaust fan 34, and 37 is a discharge path formed by the discharge path forming body 36 and communicating with the outside of the apparatus. It is. The suction dust exhaust fan 34 rotates clockwise in FIG. In this manner, the dust exhausted from the dust delivery port 33 is sucked by the suction dust exhaust fan 34 and discharged out of the apparatus through the discharge path 37.

  As shown in FIG. 2, the sorting unit 7 can swing the swing sorting body 38 via an elliptic swing mechanism 39 at the upper part, that is, by making a horizontally long elliptical motion in the front-rear direction, And, it is arranged so as to make a small swinging motion in the vertical direction. The swing sorter 38 is formed to extend from a position below the handling chamber 20 of the threshing section 5 to a position below the suction dust exhaust fan 34. The swing sorter 38 has a feed pan 61 stretched at the front part of the sorter body 60 that is opened in the vertical direction and formed in a rectangular frame shape, a chaff sheave 62 is provided behind the feed pan 61, and a grain sheave 63 is provided below the feed pan 61. Is arranged. Further, a Kara 64 as a compressed air fan is provided below the starting end side of the swinging sorter 38, and a first rod 66 having a spiral conveyor 65 is mounted behind the Glen Sheave 63 and behind the Glen Sheave 63. Horizontally installed.

  Below the swinging sorter 38, a second spiral conveyor 67 for sorting and collecting grains mixed with chaff sheave 62, Glen sheave 63, and the first sort 66 that are not sorted and collected by the insufficiently sorted straw scraps. A second cage 68 is provided. Reference numeral 69 denotes a sorting stroller.

  As shown in FIG. 3, the chaff sheave 62 is formed by arranging a large number of chaff sheave forming pieces 62 a formed in a rectangular plate shape extending in the left-right direction with a certain interval in the front-rear direction. Then, the middle part of each chaff sheave forming piece 62a is pivoted around the axis in the left-right direction via the support shaft 62b, and the lower end of each chaff sheave forming piece 62a is integrated with the sorting body 60 via the connecting piece 62c. It is linked to.

  Thus, by sliding the connecting piece 62c in the front-rear direction, the opening amount of the opening 70 formed in a vertically connected state between the chaff sheave forming pieces 62a, 62a adjacent in the front-rear direction is adjusted. To be able to. Here, the opening amount becomes large when the chaff sheave forming piece 62a stands substantially vertically, and becomes small when lying horizontally.

  In addition, the tongue 64 is opened on the left side and the fan 73 is rotatably mounted via a fan shaft 72 in a horizontally long casing body 71 in the left-right direction, and the fan 73 is rotated to rotate the casing body 71. The intake air is sucked from the left side opening portion of the air and the sorting air is blown toward the swinging sorting body 38 at the rear upper side. Note that the fan 73 is rotated counterclockwise in FIGS.

  That is, as shown in FIG. 3, the casing body 71 includes a front casing piece 74 that covers the front of the tang 64, an upper casing piece 75 that covers the upper side of the tang 64, and a lower portion that covers the lower side of the tang 64. It forms from the casing piece 76, and the ventilation port 83 is formed in back. The rear end edge portion 75a of the upper casing piece 75 is positioned above the rear end portion of the rotation path K of the fan 73, and the rear end edge portion 75a extends downward so that the front sorting wind upper guide body 75b is provided. Forming. The lower casing piece 76 has a rear end edge extending rearward and upward to form a sorting wind rear guide body 76 a, and the sorting wind rear guide body 76 a is connected to the front end edge portion of the first rod 66.

  A rear sorting wind upper guide body 77 is disposed at the rear upper position of the fan 73, and a sorting wind rear branch guide body 78 is disposed at the rear lower position of the rear sorting wind upper guide body 77. The rear sorting wind upper guiding body 77 has a triangular shape in a side view from a front surface portion 77a which is a substantially vertical surface, an upper surface portion 77b which is a rear lower surface and a lower surface portion 77c which is an upper rear surface. And is formed in a cylindrical shape extending in the left-right direction. Then, a front face 77a of the rear sorting wind upper guide body 77 and a front sorting wind upper guide body 75b are opposed to each other in a substantially parallel state in the front-rear direction, and a flow path of the sorting wind blown upward from the fan 73; An upper flow path Ru is formed.

  The sorting wind rear branch guide body 78 is formed in a plate shape and is arranged in parallel with the sorting wind rear guide body 76a. A rear flow path Rb serving as a flow path for the selection air blown toward the rear upper chaff sheave 62 is provided between the lower surface portion 77c of the rear selection wind upper guide body 77 and the selection wind rear diversion guide body 78. To be formed. Further, the most upstream flow path Rt is formed between the sorting wind rear branch guide body 78 and the sorting wind rear guide body 76a.

  In addition, the sorting body main body 60 is provided with a sorting wind rear guide body 79, and the sorting wind rear guide body 79 guides the sorting wind upward through the front and rear sorting wind upper guide bodies 75b and 77. The wind is branched into two sorting winds and guided backwards. In other words, the sorting wind rear guide body 79 horizontally spans the support shaft 80 extending in the left-right direction between the left and right side portions of the sorting body main body 60 at a position below the middle of the feed pan 61 and at a position in front of the chaff sheave 62. The lower end edge portion of the front guide body forming piece 79a formed in the shape of an inclined plate having a front, rear and rear height is fixed to the support shaft 80, and the chaff sheave forming piece 62a is formed from the upper end edge portion of the front guide body forming piece 79a. An upper surface guide body forming piece 79b extending in a descending inclined plate shape toward the lower end edge is formed, and is formed in a shape of “he” in a side view. Reference numeral 60a denotes a front wall inner surface portion of the sorting body main body 60. The front wall inner surface portion 60a is formed on an inclined surface having a front low, a rear high height, and the sorting wind guided upward is rearward along the lower surface of the feed pan 61. To guide you to. Reference numeral 81 denotes a front shield that hangs down from the front surface of the sorting body 60 to the upper surface of the upper casing piece 75, and 82 denotes a rear part that hangs down from the middle of the lower surface of the sorting body 60 to the upper surface 77 b of the rear sorting wind upper guide 77. These front and rear shields 81 and 82 are formed of a flexible material such as elastic rubber so as to shield the front-rear space while swinging and deforming in the front-rear direction.

  Then, as shown in the conceptual diagram of the air passage in FIG. 4, the sorted air rear guide body 79 is branched and guided to the upper flow passage Ru1 and the lower flow passage Ru2. The upper flow channel Ru <b> 1 is a flow channel that guides the sorting wind along the upper surface side of the sorting wind rear guiding body 79 and guides it to the upper side of the chaff sheave 62 through the feed pan 61 and the chaff sheave 62. The lower flow path Ru <b> 2 is a flow path that guides the sorting wind along the lower surface side of the sorting wind rear guide body 79 and guides it between the chaff sheave 62 and the grain sheave 63. Further, the sorting wind rear guide body 79 swings by the swinging width W in the front-rear direction integrally with the swing sorting body 38 at the end portion of the upper flow path Ru, and branches at the end portion of the upper flow path Ru. The starting end side flow passage diameters of the upper flow passage Ru1 and the lower flow passage Ru2 formed in this manner are alternately expanded and contracted, and the wind pressure of the selection wind guided to the upper flow passage Ru1 and the lower flow passage Ru2 is alternately changed. I am doing so. Wu is an upper sorting wind flowing along the upper flow path Ru, Wu1 is an upper branch sorting wind flowing along the upper flow path Ru1, Wu2 is a lower branch sorting wind flowing along the lower flow path Ru2, and Wb is a backward flow. The rear sorting wind flowing along the path Rb, Wt, is the first soot sorting wind flowing along the most solitary flow path Rt. Wu3 is an upper flow sorting wind that circulates between the chaff sheave forming pieces 62a and 62a from the lower branch sorting wind Wu2, and Wb1 is a rear flow sorting wind that flows from the rear sorting wind Wb through the grain sheave 63.

  In this way, as shown in FIG. 4, in the present embodiment, the sorting air generated by the fan 73 can be pumped upward and rearward through the blower opening 83. At this time, a sorting wind rear guiding body 79 is disposed on the swing sorting body 38, and the upper sorting wind Wu guided upward through the front / rear sorting wind upper guiding bodies 75b and 77 is guided by the sorting wind rear guide. Since the body 79 guides backward, the upward sorting wind Wu can be guided firmly from the front of the swing sorting body 38 toward the rear. As a result, it is possible to efficiently sort the grains, etc., having a specific gravity sorted by the swing sorter 38 with the upper sorting wind Wu.

  Then, the upper sorting wind Wu is guided by the sorting wind rear guide body 79 along the upper channel Ru1 that is guided upward of the chaff sheave 62, and the lower channel that is guided between the chaff sheave 62 and the Glen sheave 63. Since it is branched to the lower branch sorting wind Wu2 flowing along Ru2, it is selected by a synergistic effect of the specific gravity sorting effect by the chaff sheave 62 and the wind sorting effect by the upper and lower branch sorting winds Wu1, Wu2. Efficiency can be improved.

  In addition, the sorting wind rear guide body 79 provided integrally with the swinging sorter 38 in conjunction with the swinging movement of the swinging sorter 38 in the front-rear direction is also swung in the front-rear direction. Since it swings only by W, the upper flow path Ru1 formed at the end of the upper flow path Ru and the lower flow path Ru2 start end side in conjunction with the forward / backward movement of the sorting wind rear guide body 79 The channel diameter is alternately enlarged or reduced. That is, as shown in FIG. 4B, when the sorting wind rear guide body 79 advances forward, the starting end side channel diameter of the upper channel Ru1 is reduced and the starting end side of the lower channel Ru2 is also reduced. The channel diameter is increased. And as shown to Fig.4 (a), when the selection wind back guide body 79 retracts back, the starting end side flow path diameter of upper flow path Ru1 is expanded, and the start end side of lower flow path Ru2 The channel diameter is reduced. As described above, the starting end side flow passage diameters of the upper flow passage Ru1 and the lower flow passage Ru2 are alternately enlarged and reduced, so that the upper branch sorting wind Wu1 guided to the upper flow passage Ru1 and the lower flow passage Ru2 guided to the lower flow passage Ru2. The wind pressure of the side branch sorting wind Wu2 is changed alternately. As a result, intermittent strength can be generated in the wind pressures of the upper and lower branch sorting winds Wu1 and Wu2, and the upper and lower branch sorting winds Wu1 and Wu2 become a pulsating flow having a high wind sorting effect. be able to. Therefore, a strong sorting wind having a high wind sorting effect is obtained alternately. Then, by causing a horizontally long elliptical motion in the front-rear direction, a specific gravity sorting effect by the chaff sheave 62 of the swinging sorter 38 that swings in the front-rear direction and small in the up-down direction and a strong sorting wind are alternately generated. The selection efficiency can be further improved by a synergistic effect with the high wind sorting effect by the upper and lower branch sorting winds Wu1 and Wu2.

The side view of the combine which carries the threshing part as this invention threshing machine. Cross-sectional side explanatory drawing of a threshing part, a dust removal process part, and a selection part. Side surface explanatory drawing of a selection part. Sorting air path explanatory drawing.

Explanation of symbols

C Combine 5 Threshing unit 6 Dust removal processing unit 7 Sorting unit 37 Suction dust exhaust fan 38 Swinging sorter 64 Kara Ru Upper flow path Rb Rear flow path Ru1 Upper flow path Ru2 Lower flow path W Swing width Wu Upper sorting wind Wu1 Upper branch sorting wind Ru1 Upper flow path Lower Wu2 Side branch sorting wind

Claims (3)

An oscillating sorter that includes a threshing unit for threshing the carried cereal and a sorting unit for sorting the grains threshed by the threshing unit, and the sorting unit swings in the front-rear direction to perform specific gravity sorting. And a threshing machine equipped with a tang that blows the sorting wind and performs wind sorting,
A Kara is arranged below the front of the swinging sorter, and a sorting wind upper guiding body for guiding the sorting wind upward is arranged behind the upper side of the Karatake while a sorting wind upper guide is provided on the swinging sorter. A threshing machine comprising a sorting wind rear guiding body for guiding the sorting wind guided upward through the rear. The swing sorter is provided with a feed pan, a chaff sheave disposed below the feed pan, and a grain sheave disposed below the chaff sheave, and the sorting wind rear guide body below the feed pan and in front of the chaff sheave. As well as
The sorting wind rear guide body is arranged between an upper flow path that guides the sorting wind guided upward through the sorting wind upper guide body and above the chaff sheave through the feed pan and the chaff sheave, and between the chaff sheave and the Glen sheave. The threshing machine according to claim 1, wherein the threshing machine is branched and guided to a lower flow path to be guided.   The sorting wind rear guide body swings in the front-rear direction integrally with the swing sorting body, and alternately expands / contracts the diameter of the upper end flow path and the lower end flow path to the upper flow path and the lower flow path. The threshing machine according to claim 2, wherein the wind pressure of the sorting wind guided to the road is changed alternately.

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