JP5046140B2 - Combine threshing equipment - Google Patents

Description

  The present invention relates to a combine threshing apparatus excellent in sorting ability.

  In the sorting unit of the threshing apparatus, the wind selection process is performed by blowing air from the Karatsu to the swing sorting shelf and between the first and second product collection units. Conventionally, an airflow direction plate is provided between the top surface and the bottom surface portion of the air outlet of the red pepper, and an upper air passage is provided between the top surface portion and the wind direction plate, and a lower airflow is provided between the wind direction plate and the bottom surface portion. A structure in which a side air passage is formed, and the wind direction plate is rotatable within an angular range centering on a horizontal axis orthogonal to the air blowing direction and having an upper surface and a lower surface obliquely upward toward the air blowing direction downstream side. What was comprised is well-known (patent document 1).

JP-A-7-274696

However, although this known example can change the wind direction of the upper air passage and the lower air passage, the air volume cannot be adjusted. That is, in the above-mentioned known example, even if the inclination angle of the wind direction plate with respect to the horizontal plane is increased or decreased, the degree of opening of the upper airway and the lower airway does not change. Does not change.
However, if only the wind direction of the upper airway and the lower airway can be changed, it will not be possible to blow appropriately against the threshing conditions (processed amount, crop state, etc.) that will be changed in an unusual manner, and the sorting performance will be kept high. It is difficult.
Therefore, a main problem of the present invention is to make it possible to adjust not only the wind direction of the upper air passage and the lower air passage but also the air volume so that the sorting performance can be maintained high.

The present invention that has solved the above problems is as follows.
That is, the invention described in claim 1 includes a threshing chamber (11) containing the handling cylinder (10), and a sorting chamber (18) located below the threshing chamber (11),
A swing sorting shelf (20) is provided in the sorting chamber (18). Under the swing sorting shelf (20), a red pepper (16), a first thing recovery section (19A), and a second thing recovery. Part (19B) in this order in the transfer direction of the workpieces on the shelf of the swing sorting shelf (20),
The tang (16) has a blower opening (65) formed between the top surface portion (67) and the bottom surface portion (68),
An air split (66) is provided between the top surface portion (67) and the bottom surface portion (68), and the air blow port (65) is connected to the upper air passage (74) and the lower air passage ( 75)
The top surface portion (67) is configured to be rotatable so that a portion on the downstream side in the air blowing direction moves up and down,
The air split (66) is arranged so that the vertical rotation center of the air split (66) is located in the middle part of the blowing direction, and the part of the wind split (66) on the upstream side and the downstream side of the blowing direction is turned up and down. Configure freely
The top surface portion (67) and the air split (66) are configured to be configured to rotate in conjunction with the same rotation direction.

  In such a structure, the distribution ratio of the wind supplied from the tang (16) to the upper air passage (74) and the lower air passage (75) is the upper air passage (74) and the lower air passage (75). It is determined by the ratio of the opening degree. That is, when the top surface portion (67) and the air split (66) rotate in the same direction in the direction in which the degree of opening of the lower air passage (75) decreases, the air volume in the lower air passage (75) is increased. On the contrary, the air volume in the upper air passage (74) increases while decreasing. The wind direction of the lower air passage (75) changes according to the change in angle of the lower surface of the air split (66), and the air direction of the upper air passage (74) is the lower surface of the top surface portion (67) and the upper surface of the air split (66). It changes according to the angle change.

  On the other hand, when the top surface portion (67) and the wind division (66) rotate in the same direction in the direction in which the degree of opening of the lower air passage (75) increases, the air volume of the lower air passage (75) is increased. On the contrary, the air volume in the upper air passage (74) decreases while increasing. The wind direction of the lower air passage (75) changes according to the change in angle of the lower surface of the air split (66), and the air direction of the upper air passage (74) is the lower surface of the top surface portion (67) and the upper surface of the air split (66). It changes according to the angle change.

  Thus, according to the present invention, the wind direction and the air volume of the upper air passage (74) and the lower air passage (75) can be adjusted simultaneously.

Further, the invention according to claim 2 is provided with a processing amount detection sensor (95) for detecting the amount of the processed product on the shelf of the swing sorting shelf (20),
Based on the detection result of the processing amount detection sensor (95), when the amount of the processing object on the shelf increases, the inclination angle of the air split (66) and the top surface part (67) with respect to the horizontal plane is decreased, and the processing object on the shelf is reduced. The combine threshing device according to claim 1, further comprising a control device that increases an inclination angle of the air division (66) and the top surface portion (67) with respect to a horizontal plane when the amount of the air flow decreases.

  In this way, the amount of the processed product on the shelf is detected by the processing amount detection sensor (95), and the air direction and the air amount of the upper air passage (74) and the lower air passage (75) are adjusted according to the detection result. As a result, the sorting performance can be maintained higher.

According to the third aspect of the present invention, a second processing chamber (40) containing a second processing cylinder (41) and a second product collected in the second product recovery section (19B) are processed in the second processing. A second transfer device (27) for supplying the chamber (40),
Opening the second treatment product return port (43) in the second treatment chamber (40) above the upstream side of the swing sorting shelf (20);
A processing amount detection sensor (95) for detecting the amount of the processed material on the shelf of the swing sorting shelf (20) in the vicinity of the second processed material reducing port (43);
Based on the detection result of the processing amount detection sensor (95), when the amount of the processing object on the shelf increases, the inclination angle of the air split (66) and the top surface part (67) with respect to the horizontal plane is decreased, and the processing object on the shelf is reduced. The combine threshing device according to claim 1, further comprising a control device that increases an inclination angle of the air division (66) and the top surface portion (67) with respect to a horizontal plane when the amount of the air flow decreases.

Thus, by detecting the amount of the processed product on the shelf in the vicinity of the second processed product reducing port (43) with the processed amount detection sensor (95), the change in the processed amount including the second processed product is higher. It is possible to detect with high accuracy, and by adjusting the air direction and the air volume of the upper air passage (74) and the lower air passage (75) according to the detection result, the sorting performance can be maintained higher.
According to a fourth aspect of the present invention, the processing amount detection sensor (95) includes a float (97) that rises by contacting a processing object on the swing sorting shelf (20),
At a portion of the swing sorting shelf (20) downstream of the float (97) with respect to the workpiece transfer direction, a closing plate (98) that is inclined with respect to the swing direction of the swing sorting shelf (20) in plan view is provided. A combine threshing apparatus according to claim 2 or claim 3 characterized by that.

  As described above, the invention according to claim 1 makes it possible to adjust not only the wind direction of the upper air passage (74) and the lower air passage (75) but also the air volume, so that the sorting performance can be maintained high, and by combining. The efficiency of threshing work can be improved.

  Further, the invention described in claim 2 has the effect of the invention described in claim 1 above, and the upper air passage (74) and the lower air flow according to the change in the amount of the processed material on the swing sorting shelf (20). The wind direction and the air volume of the path (75) can be adjusted, so that the sorting accuracy can be kept high.

The invention described in claim 3 has the effect of the invention described in claim 1 above, and adjusts the wind direction and the air volume of the upper air passage (74) and the lower air passage (75) according to the amount of the processing object. In this case, it is possible to detect the change in the amount of the processed material with higher accuracy including the second processed material, and to maintain the sorting accuracy higher.
Further, the invention described in claim 4 has the effect of the invention described in claim 2 or claim 3, and is further provided on the swing sorting shelf (20) by the float (97) of the processing amount detection sensor (95). It is possible to detect the layer thickness of the processed material flowing along the gathering plate (98).

It is a left view of a combine. It is a top view of a combine. It is a front view of a combine. It is a rear view of a combine. It is a longitudinal cross-sectional view of a threshing apparatus. It is a principal part enlarged view of FIG. It is a horizontal sectional view of a threshing apparatus. It is a horizontal sectional view in the other position of a threshing apparatus. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. It is an enlarged view of the drive mechanism part of a top | upper surface part and a wind split. It is a longitudinal cross-sectional view of a threshing device when the inclination angle of the top surface portion / wind split is maximized. It is a longitudinal cross-sectional view of a threshing device when the inclination angle of the top surface portion and the wind split is minimized. It is a front view of an operation panel.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In addition, in order to make an understanding easy, although it showed and demonstrated the direction for convenience, the structure is not limited by these.

  Reference numeral 1 in the figure denotes a combine body frame, reference numeral 2 denotes a traveling device having a pair of left and right crawlers, reference numeral 3 denotes a threshing device provided above the body frame 1, and reference numeral 4 denotes a cutting part provided on the front side of the threshing device 3. Reference numeral 6 denotes a Glen tank provided at the side of the threshing device 3, Reference numeral 6 denotes a control unit provided in front of the Glen tank 5, and Reference numeral 7 denotes a discharge pipe for discharging the stored grains in the Glen tank. Yes.

  The threshing device 3 is provided with a threshing chamber 11 at the top, and a cereal supply and transport device 12 is provided on one side of the threshing chamber 11 (on the left side in the machine traveling direction). The grains that have been run by the traveling device 2 and are harvested by the cutting unit 4 are taken over by the grain supply and transport device 12 and are sandwiched between the basket 13A of the grain supply and transport device 12 and the supply and transport chain 13B. The threshing is carried out in the threshing chamber 11 while being conveyed rearward. After the threshing, the slaughtered waste is taken over by the sewage transfer device 14.

(Threshing room)
In the threshing chamber 11, a handling cylinder 10 is mounted substantially horizontally, and the lower side of the handling cylinder 10 is mainly surrounded by a handling net 15. Is provided. The downstream (rear) end of the threshing chamber 11 is a dust removal treatment chamber introducing portion 11E isolated by an intermediate partition wall 11K with respect to the upstream portion, and is downstream (rear) of the handling cylinder 10. The end portion extends through the intermediate partition wall 11K and into the dust removal processing chamber introduction portion 11E. The intermediate partition wall 11K of the dust removal processing chamber introducing portion 11E is fixed to the body frame 1 side.

  The handling depth of the cereals harvested by the mowing unit 4 is adjusted, and the tip side is inserted into the threshing chamber 11. The cereal grains supplied to the threshing chamber 11 are threshed by the rotating handling cylinder 10, and the threshed grains fall from the handling net 15, are supplied to the sorting chamber 18, and are sorted by the swing sorting device 21. Of the objects threshed in the threshing chamber 11, those to be processed that do not leak from the handling net 15 reach the dust disposal chamber introduction part 11 </ b> E at the rear of the threshing chamber 11, and then the dust disposal chamber 30 through the communication port 35. To be supplied.

(Sorting room)
Below the threshing chamber 11, a sorting chamber 18 is formed for sorting grains and foreign matter by blowing air from the red pepper 16, and reciprocates in the air blowing direction (front-rear direction) of the hot rice 16 at the upper part of the sorting chamber 18. A swing sorting device 21 constituted by a swing sorting shelf 20 that swings is provided.

(Oscillating sorting shelf, red pepper, shelf board, etc.)
The start end (front end) of the swing sorting shelf 20 is formed as a transfer shelf 22 positioned above the red pepper casing 17. The configuration of the transfer shelf portion 22 is arbitrary, and the downstream side in the transfer direction is inclined low, or the upper surface of the transfer shelf portion 22 is provided with protrusions and irregularities so that the swing sorting device 21 is located downstream in the transfer direction. What is necessary is just to be able to transfer the leakage from the handling net 15 toward the grain sieve 23.

  Glen sieve 23 is a sieve that sorts out grains and foreign matter that have leaked from handling net 15, and in the illustrated example, a thin plate-like body that is inclined so that the downstream side (rear side) in the transfer direction becomes higher is the swinging direction. Are arranged in parallel at predetermined intervals. A chaff sheave 24 is provided on the downstream side (rear side) of the grain sheave 23 in the transfer direction to sort the grains and chaff (straw dust). In the illustrated example, the chaff sheave 24 is formed by arranging a plurality of thin plate-like bodies with adjustable inclination angles at predetermined intervals in the swinging direction. Further, on the downstream side of the chaff sheave 24, the cedar adhering grains and the like are screened out from the relatively large swarf that has not leaked from the glen sieve 23 and the chaff sheave 24, and these are leaked onto the second shelf 19B described later. A stroller 25 is provided for lowering.

  In the lower part of the sorting chamber 18, there are a Kara 16, a bowl-shaped first shelf 19 </ b> A (first thing collection section), and a bowl-shaped second shelf 19 </ b> B (second collection section). They are provided in this order in the 20 transfer directions (from front to back). The tang 16 has a blower opening that faces between the swing sorting shelf 20 and the first shelf 19A. A spiral conveyor type first conveyor 26 communicating with the Glen tank 5 is disposed in the collar portion of the first shelf 19A, and a spiral conveyor communicating with the second processing chamber 30 is disposed in the collar portion of the second shelf 19B. A second conveyor 27 of the type is arranged. Further, a sorting net 28 is provided between the swing sorting shelf 20 and the first shelf 19A so as to extend from the vicinity of the boundary between the Glen sheave 23 and the chaff sheave 24 to the vicinity of the shelf tip 19C of the first shelf 19A. It has been.

  Since the swing sorting shelf 20 swings up and down and forward and backward by a drive mechanism (not shown), the object to be processed is subjected to wind sorting while receiving air from the tang 16 while moving to the rear side. 23 and the chaff sheave 24 are leaked and supplied to the sorting net 28, and the object to be processed on the sorting net 28 receives the sorting air from the tang 16 from the lower side and blows away fine dusts. What is leaked from the sorting net 28 during this transfer is collected by the first shelf 19 </ b> A, conveyed by the first conveyor 26, and put into the glen tank 5. The grain stored in the Glen tank 5 is carried out of the combine through the discharge cylinder 7. As described above, the processed material that leaks from the sorting net 28 and is collected by the first shelf 19 </ b> A is mainly cereal grains (clean grains) that have little branch raft adhesion.

  On the other hand, those that do not leak from the sorting net 28 are transported rearward on the sorting net 28, reach the second shelf 19B from the rear end of the sorting net 28, and are collected. The workpieces supplied to the second shelf 19B without leaking from the sorting net 28 are mainly branch rachis adhering grains and small shavings.

  Of the objects to be processed on the oscillating sorting shelf 20, lightweight ones do not leak the sheaves 23, 24, but are blown off by the oscillating action of the oscillating sorting shelf 20 and air blown by the tangs 16. The second item having a smaller size moves on the Strollac 25 and is collected by the second shelf 19B. It leaks from the rear portions of the sheaves 23 and 24 and the stroller 25 and is supplied to the second processing chamber 40 by the second conveyor 27. What is taken into the second conveyor 27 is a mixture of shoots adhering grains, scum and grains mixed in swarf. These peduncle adhering grains and sawdust are reprocessed as the second reduced product. In addition, the object to be processed (mainly sawdust) that does not leak from the sheaves 23 and 24 and the stroller 25 is further transferred rearward and discharged from the third dust outlet 56. Some grains may be contained in this, and the selection accuracy of the threshing apparatus is evaluated by this amount (ratio).

(Dust disposal chamber)
Behind the threshing chamber 11, a dust collection chamber introduction portion 11 </ b> E is provided, and the dust collection chamber introduction portion 11 </ b> E communicates with the dust collection chamber 30 through the communication port 35. In the dust removal processing chamber 30, a dust removal treatment cylinder 31 that is substantially parallel to the axial center of the handling cylinder 10 is mounted. The side opposite to the swing sorting shelf 20 of the dust removal processing cylinder 31 (right side toward the front) is surrounded by the side plate 32, and the swing sorting shelf 20 side (left side toward the front) of the dust removal processing cylinder 31 is processed. A discharge port 33 is provided. A blade body 34 is provided at the end portion (rear end portion) in the transfer direction of the processed material on the outer peripheral surface of the dust removal treatment cylinder 31, and dust removal treatment teeth 36 are provided at the start end side of the blade body 34. .

  The object to be processed supplied to the dust treatment chamber 30 is discharged from the treatment object discharge port 33 onto the swing sorting shelf 20 in the process of moving to the terminal side while being crushed and processed by the rotating dust removal treatment cylinder 31. In addition, the end of the dust removal processing chamber 30 is closed, and the processed material reaching here is discharged onto the strola rack 25 of the swing sorting shelf 20 by the blades 34, and these discharged processed products are swung. The grain is collected by the sorting shelf 20, and the sawdust and the like are discharged out of the machine. The processing object supplied to the dust removal processing chamber 30 includes a small amount of grain with attached branch branches, and the branch seed attached grains and small shavings swing from the processed product outlet 33. It falls on the sorting shelf 20.

(Second processing room)
A second processing chamber 40 for processing the second item collected by the second conveyor 27 is provided on the front side of the dust removal processing chamber 30. In the second processing chamber 40, a second processing cylinder 41 having intermittent spiral blades on the outer peripheral surface is mounted coaxially and in series with the dust removal processing cylinder 31. The lower part of the second processing cylinder 41 is surrounded by a bowl-shaped receiving plate 42 except for the terminal part thereof, and the lower part of the terminal part (front end part) 9 of the second processing cylinder 41 is the second processing object reducing port. 43 is opened above the side of the second processing chamber 40 on the upstream side of the swing sorting shelf 20. Further, a supply port 44 for a second object supplied from the second conveyor 27 is opened above the start end side (rear end side) of the second processing cylinder 41.

  In the second processing chamber 40, after the separation of the grain and the removal of the branch leaf from the branch leaf adhering grain while the second thing is being conveyed by the second processing cylinder 60, the second processing material reduction port 43 is obtained. Then, it falls onto the swing sorting shelf 43 and merges with the object to be processed from the handling chamber 40 to be re-sorted.

(Suction dust exhaust fan)
A dust suction port 44 of the suction dust exhaust fan 43 is opened above the terminal end (rear end) of the swing sorting shelf 20. The suction dust exhaust fan 43 is covered with a casing 45 having an air exhaust port 46. In the illustrated example, a suction dust exhaust fan 43 is attached to a side wall of the upper space of the swing sorting shelf 20 on the side opposite to the dust disposal chamber 30 so as to face the dust disposal chamber 30. Although the dust suction port 44 is open in the part, these attachment positions are not limited to the illustrated example.

(Exhaust treatment device)
On the rear side of the threshing device 3, the cereal that has finished threshing through the threshing chamber, that is, the waste, is handed over to the waste transporting device 14, and a cutter device 48 as a waste processing device from the terminal portion of the waste transporting device 14. To be discharged. The cutter device 48 has a structure in which the waste dropped from above is cut between a pair of rotary cutter blades 49. The outer side of the rotary cutter blade 49 is covered with a hood, and on the front side of the rotary cutter blade 49 is a cutting guide plate 50 for guiding the cut waste of the cut waste to fall backward. Is provided. The upper part of the cutting guide plate 50 is located at substantially the same height as the lower part of the upper cutter blade 49, and is inclined downward so as to be located on the rear side as it goes downward. Is located below the lower part of the lower cutter blade 49. Instead of the cutter device 48, another waste disposal device can be used.

(No. 3 dust outlet)
A third dust outlet 56 is opened in the rear side wall 55 of the threshing device 3, and the rear portion of the swing sorting shelf 20 is configured to face the third dust outlet 56. Also, a third dust outlet shutter 57 for opening and closing the third dust outlet 56 is provided. For example, when the third dust drain shutter 57 is finished cutting and turning toward the next side, the third dust outlet shutter 57 is provided. Is closed, the grain contained in the treated dust discharged from the treated product outlet 33 of the dust treated chamber 30 is not discharged from the third dust outlet 56, and the chaff sheave 24 of the swing sorting shelf 20 is discharged. Or it can supply to Strollac 25 and can collect | recover by sieve selection. Therefore, the occurrence of third loss can be prevented and the threshing efficiency can be improved. Further, the dust collection chamber 30 and the dust suction port 44 of the suction dust exhaust fan 43 are arranged so as to face each other with the swing sorting shelf 20 interposed therebetween. Since the processed dust exhausted from the processing chamber 30 diffuses widely toward the suction port 44 side of the suction dust exhaust fan 43, the recovery efficiency of keys and the like is further improved.

(Surface / Wind Division)
The blower port 65 of the tang casing 17 is opened between a top surface portion 67 positioned above and a bottom surface portion 68 positioned below, and an air split 66 is provided between the top surface portion 67 and the bottom surface portion 68 in the middle of the top and bottom. Is provided. Thus, the air outlet 65 is partitioned into an upper air passage 74 between the air divider 66 and the top surface portion 67 and a lower air passage 75 between the air divider 66 and the bottom surface portion 68. The top surface portion 67 and the bottom surface portion 68 have a plate shape in the illustrated example, but are not limited thereto.

  The air split 66 in the illustrated example has a shape having an inverted triangular cross section having a vertex 70 below. As a result, the upper surface 69 of the air split 66 in the illustrated example is formed by a flat surface having substantially the same inclination as the top surface portion 67 of the tang casing 17, and the lower surface of the air split 66 is formed by the lower front inclined surface 71 and the lower rear inclined surface. 72, and is formed by a bent surface. When the air split 66 has such a shape, the wind sent from the upper air passage 74 flows toward the swing sorting shelf 20 without diffusing so much along the upper surface of the air split 66. The wind sent from the lower air passage 75 flows toward the further downstream side of the swing sorting shelf 20 while diffusing upward along the lower rear inclined surface 72 of the air split 66. (See FIG. 5).

  The air split 66 has an angular range in which a horizontal rotation shaft 66x (see FIG. 12) orthogonal to the air blowing direction is a rotation center, and the upper surface 69 and the lower surfaces 71 and 72 are obliquely upward toward the downstream side in the air blowing direction. Further, the rotation shaft 66x of the air split 66 is positioned in the middle of the air blowing direction, and rotates so that the upstream side and the downstream side of the rotary shaft 66x move up and down. It is like that. Both ends of the rotation shaft 66x of the air split 66 are pivotally supported on both side walls 18S of the sorting chamber 18. Further, when the inclination angle of the airflow 66 with respect to the horizontal plane (hereinafter also simply referred to as the inclination angle) is increased to the maximum by the rotation of the airflow 66, the end of the airflow 66 on the tang 16 side is the bottom surface portion of the air outlet 65. It is comprised so that 68 may be adjoined or contacted (refer FIG.5 and FIG.6).

  Further, the top surface portion 67 is also in the same direction as the airflow 66 within an angular range in which the horizontal rotation shaft 67x orthogonal to the air blowing direction is the rotation center and the lower surface is obliquely upward toward the air blowing direction downstream side. It is configured to rotate. Although the rotation shaft 67x of the top surface portion 67 is located at the end of the top surface portion 67 on the side of the Karatsu 16 in the illustrated example, it can be located at the middle of the blowing direction or at the downstream side of the blowing direction, either way. What is necessary is just to rotate so that the downstream side of the top | upper surface part 67 may go up and down. Both ends of the rotation shaft 67x of the top surface portion 67 are also pivotally supported on both side walls 18S of the sorting chamber 18.

  In such a structure, the distribution ratio of a certain amount of wind supplied from the tang 16 to the upper air passage 74 and the lower air passage 75 is determined by the ratio of the opening degrees of the upper air passage 74 and the lower air passage 75. . Therefore, when the top surface portion 67 and the wind split 66 rotate in the same direction in the direction in which the opening degree of the lower air passage 75 decreases, the air volume of the lower air passage 75 decreases, and conversely the upper air passage. As the airflow of the airflow 74 increases, the airflow direction of the lower air passage 75 changes according to the angle change of the lower surface of the airflow 66, and the airflow direction of the upper airway 74 changes the angle of the top surface portion 67 and the lower surface of the airflow 66. It changes according to the angle change. On the other hand, if the top surface portion 67 and the wind split 66 are rotated in the same direction in the direction in which the opening degree of the lower air passage 75 increases, the air volume of the lower air passage 75 increases, and conversely the upper air passage. The airflow at 74 decreases. The wind direction of the lower air passage 75 changes in accordance with the change in angle of the lower surface of the wind divider 66, and the wind direction of the upper air passage 74 changes in accordance with the change in angle of the top surface portion 67 and the lower surface of the wind divider 66. That is, the wind direction and the air volume of the upper air passage 74 and the lower air passage 75 can be adjusted simultaneously.

  The driving means for rotating the air divider 66 and the top surface portion 67 can be appropriately selected and designed as long as the air divider 66 and the top surface portion 67 are rotated in conjunction with each other. A power source may be used. In the illustrated example, one end portion of the rotation shaft 66x of the air split 66 protrudes from the side wall 18S of the sorting chamber 18, and the tip end portion of the main swing rod 81 is attached to this protruding portion. The air split 66 is rotated integrally. A stay 82 is attached to the outer surface of the side wall 18S of the sorting chamber 18, a pinion gear 83g is attached to a drive shaft 83x of a motor 83 mounted on the stay 82, and a fan-shaped gear 84 that meshes with the pinion gear 83g is a stay 82. The circumferential end portion (first eccentric position) on one side of the fan gear 84 and the base end portion of the main swing rod 81 are connected via a linkage 85, and each connection portion Is freely connected by a pin 85p. Further, a rotation amount detection device 86 such as a potentiometer is mounted on the stay 82, and the tip end portion of the auxiliary swing rod 87 is attached to the detection shaft 86 x of the rotation amount detection device 86. The rotation amount is detected, and a pin 87p protrudes from the circumferential end (second eccentric position) on the opposite side of the fan-shaped gear 84. It is configured to slide in the groove 87d along the longitudinal direction. In addition, a portion of the air split 66 on the downstream side in the air blowing direction from the rotation shaft 66x and a portion of the top surface portion 67 on the downstream side in the air blowing direction from the rotation shaft 67x are connected to each other in both sides of the sorting chamber 18. Are connected to each other, and each connecting portion is freely connected by a pin 88p.

  Therefore, when the motor 83 is driven forward / reversely, the air division 66 is rotated forward / reversely via the fan gear 84, the linkage 85, and the main swing rod 81, and the rotation amount is determined by the fan gear 84 and the auxiliary swing. It is detected by the rotation amount detection device 86 through the flange 87. Further, along with the rotation of the wind split 66, the top surface portion 67 connected thereto via the linkage 88 also rotates in conjunction with it. Therefore, the wind split 66 and the top surface portion 67 can be simultaneously rotated in the same direction and adjusted to predetermined angles, respectively, and the adjustment operation is facilitated.

  Although the inclination angle (also referred to simply as the inclination angle) of the air split 66 and the top surface portion 67 with respect to the horizontal plane can be appropriately changed within the above-mentioned ranges, the majority of the selection air in the upper air passage 74 is the swing selection shelf 20. Of these, the sheave (chaff sheave 24 in the illustrated example, which may be the sorting net 28) is directed upstream from the downstream (rear) end, and the majority of the sorting air from the lower air passage 75 is downstream of the sheave (chaff sheave 24). It is preferable to set the inclination angle range of the air blow 66 and the top surface portion 67 so as to face the downstream side from the (rear side) end. Within this range, by changing the inclination angle of the air draft 66 and the top surface portion 67, even if the flow rate of the object to be processed is in a low flow rate state (at a low flow rate), a high flow rate state (at a high flow rate). Even if it exists, more appropriate selection can be performed, and grain loss can be reduced and selection can be improved.

  In particular, as shown in FIG. 13, the sorting winds of the upper air passage 74 and the lower air passage 75 are swung sorting shelves together with the sorting air of both the air passages 65A and 65B as the inclination angle of the air split 66 is increased. It is preferable that the air flow rate toward the upstream side (front side) 20 is increased and the air flow rate toward the downstream side (rear side) is reduced. It is further preferable that the air volume of the upper air path 74 is larger than the air volume of the lower air path 75 when the inclination angle of the air split 66 is maximized (state shown in FIG. 13). Further, when the inclination angle of the airflow 66 is maximized, the air blowing direction extension line 66L on the upper surface of the airflow 66 is positioned above the shelf edge 19C of the first shelf 19A at a predetermined interval in a side view. It is preferable to increase the sorting wind toward the upstream (front) portion of the swing sorting shelf 20 from the shelf tip 19C of the first shelf 19A. Thus, for example, when the flow rate is low or when the work speed is low, the sorting air on the downstream side of the oscillating sorting shelf 20 is reduced to reduce scattering outside the machine, and the sorting wind toward the upstream side of the oscillating sorting shelf 20 is increased. Therefore, it is possible to limit leakage of severance and branching leaf adhering grains and to keep the sorting state good.

  In particular, when the inclination angle of the airflow 66 is increased to a certain degree or more, for example, when the airflow 66 is maximized, the dust suction port 45 of the dust exhaust fan 43 opens on the blowing direction extension line 66L on the upper surface of the airflow 66 in side view ( In other words, it is preferable that the extension line 66L intersects the dust suction port 45). As a result, the dust blown up in the front can be efficiently sucked by the dust exhaust fan 43, and the selected wind is difficult to escape to the rear of the machine body (particularly in the case of having the third dust outlet shutter 57 as shown in the example). The dust can be effectively discharged outside the machine without impairing the sorting ability.

  Further, as shown in FIG. 14, the sorting winds of the upper air passage 74 and the lower air passage 75 are the swinging sorting shelves together with the sorting air of both the air passages 65A and 65B as the inclination angle of the air split 66 is reduced. It is preferable that the airflow direction is changed to the downstream side of 20 to reduce the air volume of the upper air path 74 and increase the air volume of the lower air path 75. When the inclination angle is minimized, it is more preferable that the air volume in the lower air path 75 is larger than the air volume in the upper air path 74. In addition, when the inclination angle is minimized, the blowing direction extension line 66L on the upper surface of the air divider 66 is positioned at the shelf tip 19C of the first shelf 19A and the vicinity thereof, and sorting toward the shelf tip 19C of the first shelf 19A is performed. It is preferable to increase the wind. This facilitates the removal of the sorting air from the sorting chamber to the outside of the machine during high-speed work and high flow rate, promotes the discharge of the waste on the swing sorting shelf 20 to the outside, and reduces the amount of reduction (No. 2 The amount taken into the conveyor 27) can be suppressed, and the adaptability to high-speed work can be improved.

  Although the amount of change in the inclination angle of the wind draft 66 and the top surface portion 67 may be the same, they may be made different. For example, as shown in the figure, when the inclination angle of the airflow 66 is rotated from the maximum state to the minimum state, the front end of the airflow 66 has a rotational amount of the front end of the top surface portion 67 (the side of the tang 16). If the rotation amount is configured to be large, the rotation amount of the front end of the top surface portion 67 (the side of the tang 16) is relatively small, so that the air direction can be changed without impairing the air volume of the upper air passage 74. Since the amount of rotation of the front end of the air split 66 is relatively large, the distribution ratio of the selected air to the upper air passage 74 and the lower air passage 75 can be greatly changed, and the air directions of both air passages can also be changed. This is preferable because it is possible.

  Although the upper limit (upper limit angle) and lower limit (lower limit angle) of the wind angle 66 and the top surface 67 may be fixed, the appropriate range of the wind angle 66 varies depending on the crop conditions and the crop type. It is preferable to be able to change in a stepwise or stepwise manner. In addition, when the upper limit angle and the lower limit angle can be changed, the upper limit angle and the lower limit angle can be manually adjusted to arbitrary angles, and it is also preferable that the upper limit angle and the lower limit angle can be automatically changed to a predetermined angle depending on the crop type. More preferably, the two can be switched. In the case of manual adjustment, when the combine is used, it is optional if the preset upper and lower limit angles do not match the crop conditions (for example, the amount of water in the crop, the degree of lodging of the crop, the increase or decrease in the amount of processed material) It can be corrected. On the other hand, in the case of automatic change, the upper limit angle and the lower limit angle can be switched according to the crop type in advance, such as rice and wheat, so that the upper limit angle and the lower limit angle can be easily switched according to the crop type, Appropriate sorting can be performed. For example, wheat has a smaller grain ratio in the processed amount than rice, and even if the flow rate is the same, the upper limit of the inclination angle of the wind rate 66 is made shallow so as to increase the efficiency of discharge outside the machine, so that the processing efficiency is improved. preferable.

  FIG. 15 shows an example of an operation panel for changing the upper limit angle and the lower limit angle of the air draft 66 and the top surface portion 67. In the vicinity of the opening degree adjustment of the sheave, the switching rotary switch 91 and the opening degree adjustment are shown. A rotary switch 92 is provided in parallel, and by setting the switch rotary switch 91 to “rice” or “wheat”, the upper limit angle and the lower limit angle of the wind split 66 and the top surface portion 67 are set according to each crop type. When the change rotary switch 91 is automatically changed to “manual”, the upper limit angle and the lower limit angle of the wind rate 66 and the top surface portion 67 are changed to arbitrary angles determined according to the rotation position of the opening degree adjustment rotary switch 92. The

  The setting of the upper limit angle and the lower limit angle of the air division 66 and the top surface portion 67 may be performed mechanically. However, as described above, the rotation of the air division 66 and the top surface portion 67 is performed by a driving source such as a motor. In this case, it is desirable to perform the driving control.

(Processing amount detection sensor)
The inclination angle of the air draft 66 and the top surface portion 67 may be fixed regardless of the amount of processed material. However, the appropriate wind direction and air volume in wind sorting differ depending on the amount of processed material. For example, when the flow rate is low or the speed is low, the sorting air on the downstream side of the oscillating sorting shelf 20 is reduced to reduce scattering outside the machine, and the sorting wind toward the upstream side of the oscillating sorting shelf 20 is increased. It is preferable to limit the leakage of cuts and branches, etc., and facilitates the removal of the sorting air from the sorting room to the outside of the machine during high-speed work or high flow rate. It is preferable to promote the discharge to the outside, suppress the reduction amount, and improve the adaptability to high-speed work. Therefore, when the inclination angle of the air split 66 and the top surface portion 67 is fixed regardless of the amount of processed material, there is a possibility that the sorting ability may be reduced due to increase or decrease in the amount of processed material.

  Therefore, a processing amount detection sensor 95 for detecting the amount of the processed product on the swing sorting shelf 20 is provided. Based on the detection result of the processing amount detection sensor 95, when the amount of the processed product on the shelf increases, 66 and a control device (not shown) for decreasing the inclination angle of the top surface portion 67 with respect to the horizontal surface and increasing the inclination angle of the air flow 66 and the top surface portion 67 with respect to the horizontal surface when the amount of the processed product on the shelf is reduced. preferable. As a result, even if there is an increase or decrease in the amount of processed material, the inclination angle of the wind rate 66 and the top surface portion 67 is automatically adjusted appropriately according to the detected result of the processed material amount on the swing sorting shelf 20, and the optimum grain loss and A sorting state can be obtained.

  The processing amount detection sensor 95 can be configured by using a known contact or non-contact sensor. In the illustrated example, the sensor stay 95S includes a terminal side (second treatment product return port side or front end side) portion of the receiving plate 42 of the second treatment chamber 40 and a lower end portion of the intermediate partition wall 11K of the dust removal treatment chamber introduction portion 11E. The rotation amount detecting device 96 such as a potentiometer is attached to the sensor stay 95S, and the float 97 is attached to the detection shaft 96x of the rotation amount detection sensor 96 in a suspended state. However, it comes into contact with the object to be processed moving on the transfer shelf 22 of the swing sorting shelf 20 and lifts while rotating in the moving direction of the object to be processed. The rotation amount detecting device 96 detects the layer thickness of the processed product.

  As described above, the sensor stay 95S causes the end side (second treatment product return port side or front end side) portion of the receiving plate 42 of the second treatment chamber 40 and the lower end portion of the intermediate partition wall 11K of the dust removal treatment chamber introduction portion 11E to If the structure connecting the two is used, the float 97 can be installed in a suspended state while avoiding the position where it interferes with the discharge and transfer of the second processed material from the second processed material reducing port 43. Since the 40 receiving plates 42, the intermediate partition wall 11K, and the sensor stay 95S can be connected in a triangular shape, there is an advantage that the machine frame 1 is strengthened.

  In the case of the type in which the float 97 rotates as in the illustrated example, the rotation center of the float 97 (that is, the detection shaft 96x in the illustrated example) is relative to the flow of the second reduced product or the entire processed product on the shelf. It is preferable that the configuration is substantially right-angled and inclined with respect to the swinging direction of the swing sorting shelf 20 in a plan view. As a result, the flow direction of the processed product on the shelf and the rotation direction of the float 97 contacting the same coincide with each other or close to each other, so that the float 97 operates smoothly and is accurate and sensitive to changes in the amount of processed product. To respond to.

  In this case, in order to make the operation of the float 97 smoother, with respect to the rotation center of the float 97 on one side in the rotation center direction in the float 97, particularly on the downstream side in the transfer direction of the movable shelf 22 as shown in the illustrated example. It is also a preferable form that a close-up plate 98 extending in a substantially orthogonal direction (substantially parallel to the rotation direction of the sensor float 97) is erected. As a result, even if the moving direction of the processed product on the shelf shifts due to the swinging action by the moving shelf 22, the moving direction is regulated by the approaching plate 98 in the vicinity of the float 97, so the flow direction of the processed product on the shelf And the rotation direction of the float 97 in contact therewith substantially match, so that the float 97 operates more smoothly.

  In addition, the shape of the float 97 is at least a portion in contact with the processed product on the shelf as in the illustrated example (in the illustrated example, the surface on the upstream side in the movement direction of the processed product in the non-contact state where there is no processed product on the shelf) However, it is preferable that it is an arcuate curved surface that protrudes toward the middle part in the sliding direction of the processed material on the shelf.

  On the other hand, the amount of processed material is generally unevenly distributed on the moving shelf 22, and the amount of processed material in the vicinity of the lower portion of the second processed material reducing port 43 is particularly large. Therefore, it is desirable that the processing amount detection sensor 95 is configured to detect the amount of the processed product on the shelf of the swing sorting shelf 20 in the vicinity of the second processed product reducing port 43. For this reason, in the illustrated example, the float 97 is disposed in the vicinity of the second processed material reducing port 43.

  The present invention can be applied to a combine threshing apparatus.

  DESCRIPTION OF SYMBOLS 1 ... Airframe frame, 2 ... Traveling apparatus, 3 ... Threshing apparatus, 4 ... Cutting part, 5 ... Glen tank, 6 ... Steering part, 10 ... Handling cylinder, 11 ... Threshing room, 12 ... Grain supply and transfer device, 13A ...挾 扼 杆, 13B: supply conveyance chain, 14: evacuation conveyance device, 15 ... handling net, 16 ... karako, 17 ... karaoke casing, 18 ... sorting room, 19A ... first shelf, 19B ... second shelf, DESCRIPTION OF SYMBOLS 20 ... Swing sorting shelf, 21 ... Swing sorting apparatus, 22 ... Transfer shelf part, 23 ... Glen sheave, 24 ... Chaff sheave, 25 ... Strolack, 26 ... First conveyor, 27 ... Second conveyor, 30 ... Dust disposal processing Chamber 31 ... Processing cylinder 40 ... Second processing chamber 43 ... Suction dust exhaust fan 44 ... Dust suction port 45 ... Case casing 48 ... Cutter device 49 ... Cutter blade 50 ... Cut guide plate 55 ... Rear Side wall, 56 ... No. 3 dust outlet, 65 ... Blower port, 66 ... Wind , 67 ... top surface part, 68 ... bottom surface part, 69 ... upper surface, 70 ... apex, 71 ... lower front inclined surface, 72 ... lower rear inclined surface, 74 ... upper air passage, 75 ... lower air passage, 95 ... Processing amount detection sensor.

Claims (4)

A threshing chamber (11) containing the handling barrel (10), and a sorting chamber (18) located below the threshing chamber (11);
A swing sorting shelf (20) is provided in the sorting chamber (18). Under the swing sorting shelf (20), a red pepper (16), a first thing recovery section (19A), and a second thing recovery. Part (19B) in this order in the transfer direction of the workpieces on the shelf of the swing sorting shelf (20),
The tang (16) has a blower opening (65) formed between the top surface portion (67) and the bottom surface portion (68),
An air split (66) is provided between the top surface portion (67) and the bottom surface portion (68), and the air blow port (65) is connected to the upper air passage (74) and the lower air passage ( 75)
The top surface portion (67) is configured to be rotatable such that a portion on the downstream side in the air blowing direction moves up and down, and the air split (66) is arranged at a portion in the middle of the air blowing direction by arranging the center of the vertical rotation. The upper part (67) and the wind part (66) are interlocked with the same turning direction. A combine threshing device characterized in that it is configured to rotate. A processing amount detection sensor (95) for detecting the amount of processed material on the shelf of the swing sorting shelf (20) is provided,
Based on the detection result of the processing amount detection sensor (95), when the amount of the processing object on the shelf increases, the inclination angle of the air split (66) and the top surface part (67) with respect to the horizontal plane is decreased, and the processing object on the shelf is reduced. The combine threshing device according to claim 1, further comprising a control device that increases an inclination angle of the air division (66) and the top surface portion (67) with respect to a horizontal plane when the amount of the air flow decreases. Second processing chamber (40) containing a second processing cylinder (41), and second transfer for supplying the second processing chamber (40) to the second processing chamber (40). A device (27),
Opening the second treatment product return port (43) in the second treatment chamber (40) above the upstream side of the swing sorting shelf (20);
A processing amount detection sensor (95) for detecting the amount of the processed material on the shelf of the swing sorting shelf (20) in the vicinity of the second processed material reducing port (43);
Based on the detection result of the processing amount detection sensor (95), when the amount of the processing object on the shelf increases, the inclination angle of the air split (66) and the top surface part (67) with respect to the horizontal plane is decreased, and the processing object on the shelf is reduced. The combine threshing device according to claim 1, further comprising a control device that increases an inclination angle of the air division (66) and the top surface portion (67) with respect to a horizontal plane when the amount of the air flow decreases. The processing amount detection sensor (95) includes a float (97) that rises by contact with the processing object on the swing sorting shelf (20),
At a portion of the swing sorting shelf (20) downstream of the float (97) with respect to the workpiece transfer direction, a closing plate (98) that is inclined with respect to the swing direction of the swing sorting shelf (20) in plan view is provided. The combine threshing apparatus according to claim 2 or 3 , characterized in that.

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