JP4544402B2 - Threshing device - Google Patents

Description

  The present invention relates to a threshing apparatus, and in particular, relates to a configuration in the vicinity of the first and second receptacles, the first conveyor and the second conveyor.

Conventionally, an air blower is provided below the threshing chamber surrounded by the handle net below the handling cylinder, and a wind selection chamber is provided from the lower side of the threshing chamber to the terminal side in the direction of the processed material. An oscillating sorting device that sorts the grains by reciprocating oscillating in the blowing direction is provided, and a first receptacle and a second receptacle are provided below the oscillating sorter, respectively. The first conveyor and the second conveyor are respectively provided, and the first bottom plate is provided between the first conveyor and the second conveyor. The first bottom plate is the first receiving plate without scattering the grains. In order to guide the cereals, the steep slope that rises backward from the lower surface of the air duct that is provided toward the receiving side from the tang casing and resists the grains that are moved by the air blown by the blast tang to prevent scattering. The structure which is shown is shown (refer patent document 1).
JP-A-6-169633

In the above-mentioned known example, in order not to allow the grains that have fallen on the first bottom plate between the first conveyor and the second conveyor to be blown by the blow of the blown tang, it is provided from the tang casing to the most receiving side. There is a problem in that the steep slope is simply raised rearward from the lower surface of the air duct.
That is, the publicly known example is a technical idea that resists and prevents the scattering of the grain, so the existence of the steepest bottom plate naturally gives resistance to the air blown from the blown tang, so However, this method is not devised and considered at all, and the sorting efficiency and accuracy are low.
In the present application, the structure in the vicinity of the first bottom plate between the first conveyor and the second conveyor is devised to achieve both prevention of grain scattering and improvement in sorting efficiency and accuracy.

In the present invention, a blow air trap 10 is provided below a threshing chamber 8 surrounded by a handling net 9 below the handling cylinder 7, and a wind selection chamber 15 is provided from the lower side of the threshing chamber 8 to the terminal side in the processed product transfer direction. The selection chamber 15 is provided with an oscillation sorting device 17 that sorts the grains by blowing and swinging the blower tongue 10, and the first receiving rod 23 and the second receiving rod 26 are provided below the oscillation sorting device 17, respectively. The first conveyor 24 and the second conveyor 27 are respectively provided in the first receiver 23 and the second receiver 26, respectively. The plate 30 is provided, and the first sink plate 30 is swung up and down in a gently inclined state substantially parallel to the first bottom plate 31 provided between the first conveyor 24 and the second conveyor 27. The first bottom plate 31 is moved between a steeply inclined state and a steeply inclined state. The inclination angle and placement, and configured to be positioned substantially and substantially coplanar with the same inclination from the winnowing fan casing 11 and the inclination of the lower surface 32 of the air duct which is provided toward the top受樋23 of the blower winnowing fan 10 The threshing device is a threshing device, and the cereal straw supplied to the threshing chamber 8 is threshed by the rotating handling cylinder 7, and the fallen object falling from the handling net 9 is sorted by the swing sorting device 17 and dropped from the sorting net 22. The finished grain enters the first receptacle 23 and is conveyed outside the machine by the first conveyor 24 in the first receptacle 23.
The grains that have fallen on the first sink plate 30 between the first conveyor 24 and the second conveyor 27 are recovered by the first sink 23 by the vertical swing of the first sink plate 30, and the first sink When the plate 30 is moved downward, the passage of air from the air blower 10 is made good, and the dust and dust are discharged well.
The present invention is the threshing device in which the first sink plate 30 is divided into front and rear or provided with a movable sink plate 30A that is movable at the rear, and the length thereof can be changed and adjusted. The length of the first sink plate 30 is changed according to various factors such as the work object, weather conditions, and field conditions.
The threshing apparatus according to the present invention is such that a plurality of racks 46 having transfer projections 47 for transferring sawdust to the rear side are arranged in parallel at a predetermined interval in the uppermost plate 30 or the moving plate 30A. The sawdust dropped on the rack 46 is shaken by the swing of the first sink plate 30, and the grains in the sawdust are separated by swinging and collected in the second receiving tray 26. The waste is transferred toward the end by the transfer protrusion 47 of the rack 46 and discharged.
In the present invention, a threshing device is provided between the first conveyor 24 and the second conveyor 27, and a threshing device provided with an end side blow air tang 50 for blowing air to the rack 46. The non-processed material that is blown from the end-side blower 50 and falls in the vicinity thereof is wind-selected.

In the invention of claim 1, it is possible to achieve both prevention of grain scattering and improvement in sorting efficiency and accuracy.
According to the second aspect of the invention, the amplitude of the up and down swing of the first flow plate 30 can be adjusted, can be appropriately actuated, and can be used effectively.
In the invention of claim 3, the grain and the sawdust can be separated by utilizing the swing of the first sink plate 30, and a more rational configuration can be achieved.
In the fourth aspect of the invention, the accuracy and efficiency of the wind-selective action near the end of the first flow plate 30 can be improved.

An embodiment of the present invention will be described with reference to the drawings of the combine. 1 is a fuselage frame of the combine, 2 is a traveling device provided below the fuselage frame 1, 3 is a threshing device provided above the fuselage frame 1, and 4 is a threshing device. A cutting part provided on the front side of 3, 5 is a Glen tank provided on the side part of the threshing device 3, and 6 is a control part provided on the front side of the Glen tank 5.
In the upper part of the threshing device 3, a threshing chamber 8 having a handling cylinder 7 is provided. A lower side of the handling cylinder 7 is surrounded by a handling net 9. The air blower 10 blows air toward the axial direction end side (rear side) of the handling cylinder 7. In other words, the cereal feed direction of the cereal supply device 12 that supplies cereals to the threshing chamber 8 is changed from the front to the rear, and the air blown from the blower tang 10 is blown toward the rear side.

From the bottom of the threshing chamber 8 to the rear, a wind selection chamber 15 capable of wind-selecting grains and foreign matters is formed by blowing air from the blower tang 10, and in the wind selection chamber 15, in the blowing direction of the blow tang 10 A swing sorting device 17 configured by a swing sorting shelf 16 that swings back and forth is provided.
The starting end portion of the swing sorting shelf 16 of the swing sorting device 17 is positioned above the Kara casing 11, and the transfer protrusion 18 is arranged on the upper surface in the swing direction to form the transfer shelf portion 19. Subsequently, a sheave 20 for selecting grains and foreign matters is provided, and a stroller 21 that can transfer sawdust following the sheave 20 is juxtaposed in the left-right direction. A suction dust exhaust fan 28 for sucking dust and soot is provided above the stroller 21.

A sorting screen 22 is provided on the swing sorting shelf 16 below the sheave 20. A first receiving rod 23 is provided below the sorting net 22, a first conveyor 24 is provided in the first receiving plate 23, and a second receiving rod 26 is provided on the rear side of the first conveyor 24. A second conveyor 27 is provided in the basket 26.
A first sink plate 30 is provided between the first conveyor 24 and the second conveyor 27. The most sink plate 30 is formed in a flat plate shape, with the front portion of the most sink plate 30 as a base, and the tip (rear end) of the most sink plate 30 moves up and down.
The most sink plate 30 is inclined so that the tip is high and the base is low, and the tip moves up and down between a gentle inclination state and a steep inclination state where the inclination angle is steeper than this. To do.

Therefore, the first bottom plate 31 is provided between the first conveyor 24 and the second conveyor 27. The first bottom plate 31 is positioned below the first flow plate 30, and its inclination angle and arrangement are substantially the same as the inclination of the lower surface 32 of the air duct provided from the Kara casing 11 toward the first receiving plate 23. The first sink plate 30 is positioned on the same plane with the same inclination, and is configured to be substantially parallel to the first side bottom plate 31 when the first sink plate 30 is in a gently inclined state.
As a result, the air path from the opening 13 of the tang casing 11 to the first sink plate 30 in the gently inclined state can be configured linearly, the sorting wind can smoothly escape to the rear, and soot and dust can easily fly backward, Sorting performance is improved.
That is, conventionally, the portion corresponding to the first side bottom plate 31 of the present application is inclined more steeply than the inclination of the lower surface 32 of the air duct in order to prevent the grains from being scattered by the air blown from the air blower 10. By providing the first sink plate 30 whose tip moves up and down (up and down swing), the inclination angle and arrangement of the first bottom plate 31 and the first sink plate 30 are matched to the lower surface 32 of the air duct, While preventing scattering, it improves air flow and makes the soot and dust fly backwards to improve sorting performance.

In addition, since the tip of the first sink plate 30 swings up and down and the grains on the first sink plate 30 are directed toward the first receptacle 23, even if the first sink plate 30 is in a gently inclined state. The grain that has undergone the roaring movement does not fly backward, but moves toward the receiving bowl 23 and is collected.
Further, in the present application, since the first sink plate 30 is provided, the first bottom plate 31 below the first sink plate 30 prevents leakage rather than the action of guiding the grain to the first receptacle 23. Is provided. The first sink plate 30 may be formed to fill the width direction of the first bottom plate 31.
Further, when the arrangement of the first side bottom plate 31 is lowered by one step with respect to the lower surface 32 of the air duct, the first sink plate 30 in a gently inclined state is arranged so as to substantially coincide with the extension of the lower surface 32 of the air duct. Further, it is possible to suppress the turbulence of the air blowing air 10 caused by the presence of the first flow plate 30, which is more preferable.

That is, by providing the first sink plate 30 whose tip moves up and down (up and down swinging), it is possible to prevent the grains from being scattered. Therefore, the inclination angle and arrangement of the first bottom plate 31 can be set to the lower surface 32 of the air duct. It is possible to position them on the same surface according to the above, and it is possible to achieve both prevention of grain scattering and improvement of the wind path.
Thus, the base of the first flow plate 30 may be pivotally attached to the body fixing portion. In the embodiment, a stay 33 is provided on the first bottom plate 31, and a shaft 34 is provided above the stay 33 by a shaft 34. It can be pivoted.
The first flow plate 30 is configured to move up and down by transmitting rotation from the swing drive system K of the swing sorting shelf 16 of the swing sorting device 17. The shaft 34 has a base fixed to the arm 35, one end of a rod 36 is attached to the tip of the arm 35, and the other end of the rod 36 is connected to the swing drive system K.

The structure of the swing drive system K is arbitrary, and the rod 36 is attached to a crankshaft 41 provided so as to be eccentric to an input pulley 40 for rotational input from the engine, and the rotational motion of the crankshaft 41 is controlled by the rod 36 and the arm 35. Thus, the oscillating motion is changed and transmitted to the shaft 34 so that the tip of the first flow plate 30 is moved up and down.
Therefore, the cycle of the vertical movement (swing) of the first flow plate 30 and the swing cycle of the swing sorting shelf 16 are the same, so that the stagnation of the grains is eliminated and smooth grain transport can be performed.

That is, the turning cycle by the vertical swing of the first sink plate 30 and the swing cycle of the swing sorting shelf 16 become the same, and the grain is more efficiently turned toward the receiving tray 23. Thus, even when the most sink plate 30 is in a gently inclined state, it is recovered by the first receptacle 23 without being scattered.
Reference numeral 42 is an engine, 43 is a transmission, 44 is a mission, and 45 is a grain supply / feed chain.

Thus, the most sink plate 30 is configured such that its front-rear length can be changed and adjusted. In the embodiment, a moving sink plate 30 </ b> A whose front and rear position is adjustable is provided at the rear of the first sink plate 30. The moving sink plate 30A is attached to the long hole 37 at the rear of the first sink plate 30 by a fixture 38 such as a bolt or a nut so as to be movable back and forth.
In this case, it is only necessary to adjust the position of the rear edge of the first flow plate 30. Therefore, the rear first flow plate 30B on the rear side of the first flow plate 30 formed in the front and rear direction may be configured to be movable back and forth. Good.

Further, when a rack 46 is arranged in the left-right direction at the rear part of the first sink plate 30 or the moving sink plate 30A, the object to be processed falling on the second receiving plate 26 is received by the first sink plate 30, and the vertical swing sorting is performed. By doing so, the waste and dust falling on the second conveyor 27 can be sorted in two stages together with the rack 46, and the sorting ability is improved.
The rack 46 is formed in a long and long manner so as to protrude above the second conveyor 27 by a vertical plate, like the Strollac 21, and a transfer protrusion 47 for transferring to the rear side is provided on the upper surface. A plurality are arranged in parallel in the left-right direction at a predetermined interval.

In this case, if the end side air blow 50 is provided below the rack 46, the wind from the end side air blow 50 blows through between the racks 46 arranged side by side, so that an improvement in the wind selection effect can be expected. And improve accuracy.
The terminal-side air blow 50 is provided in a casing 51 provided between the first side bottom plate 31 and the second receiving plate 26 so as to send air toward the rack 46 from the opening (air outlet) 52 of the casing 51. I have to.
Therefore, the non-processed material falling from the rear portion of the sheave 20 above the most sink plate 30 and the stroller 21 has a higher content of sawdust and dust than the sheave 20 of the front portion, but it moves up and down. The wind from the terminal-side blower tang 50 blows toward the rack 46 of the first sink plate 30 to improve the separation of the grains in the sawdust and improve the sorting performance.

Accordingly, the rear discharge port 53 is opened at the position where the end of the Strollac 21 faces, and the second suction dust exhaust fan 55 is provided at the rear discharge port 53. The second suction dust exhaust fan 55 sucks fine dust and dust falling from the Strollac 21, and in the embodiment, the second suction dust exhaust fan 55 is constituted by a cross-flow suction fan and is provided with a suction port 56 and a discharge port provided to face each other. The suction port 56 is opened upward toward the rear discharge port 53, and the discharge port 57 is opened downward.
The second suction dust exhaust fan 55 sucks fine debris and dust in the non-processed material falling from the rear sheave 20 and the Strollac 21 to thereby remove the foreign matter in the non-processed material falling on the second receiving bowl 26. Can reduce the burden of processing the second product, and improve the overall sorting performance.

In addition, the second suction dust exhaust fan 55 can suck the sorting air from the blower fan 10 and the terminal-side fan fan 50, so that the sorting performance in the first sink plate 30 and / or the rack 46 can be improved.
60 is a second return device connected to the end of the second conveyor 27, 61 is a second processing device for processing the returned second product, 62 is a waste transporting device, 63 is a dust removal processing device, and 64 is a cutter device. It is.
A horizontal discharge auger 66 is attached to the top of the vertical cerealing device 65 that discharges the grain in the grain tank 5, and the auger grain that rotates in the circumferential direction with respect to the axial direction is attached to the tip of the horizontal discharge auger 66. An auger tip discharge portion 68 having a discharge port 67 is rotatably provided. In addition, since the auger grain discharge port 67 also turns to the center of the vertical cerealing device 65, it is expressed as “rotation” with the center of the axis of the horizontal discharge auger 66 being distinguished from this. The configuration is not limited.

The auger tip discharge portion 68 has a mounting tube portion 69 formed of a cylindrical member concentric with the horizontal discharge auger 66 attached to the tip of the horizontal discharge auger 66 so as to be rotatable only. On the other hand, an upper side part of the discharge cylinder part 70 in the intersecting direction is provided, the auger grain discharge port 67 is opened at the lower part of the discharge cylinder part 70, and the entire auger tip discharge part 68 rotates with respect to the horizontal discharge auger 66. To do.
Although the structure of the discharge port rotation mechanism of the auger grain discharge port 67 by the rotation of the auger tip discharge unit 68 is arbitrary, for example, a passive gear 71 is provided on the outer periphery of the mounting tube portion 69, and the passive gear 71 is provided. The opening gear (angle) is detected by a potentiometer or the like although not shown in the figure.
The auger tip discharge portion 68 is provided with a camera 75 for photographing the opening direction of the auger grain discharge port 67. The camera 75 is connected so as to display a photographed image on the monitor 76 of the control portion. When the auger grain outlet 67 is turned to the grain outlet position, the monitor 76 automatically switches to display the image of the camera 75, and when the auger grain outlet 67 is turned to the retracted position, the original The display screen of the monitor 76 is returned to.

Therefore, the state of grain discharge to the receiving tray 77 can be visually recognized and monitored at the time of grain discharge, and these operations and operations can be automated to improve operability.
Reference numeral 78 denotes an operation lever of the auger tip discharge portion 68.
15 to 17 are configured such that the lateral discharge auger 66 is divided into front and rear parts, and the front side portion provided with the auger tip discharge part 68 is expanded and contracted.

  Further, the image of the monitor 76 displays the image of the camera 75 on the monitor 76 when the grain discharging operation is started due to the operation of the auger operation lever 80 of the clutch 79 that turns on and off the operation of the lateral discharge auger 66. Thus, it may be configured to automatically return to the display screen of the original monitor 76 when the grain discharging operation is completed (FIGS. 19 to 21).

Similarly, when the horizontal discharge auger 66 starts moving from the state in which it is stored in the auger storage receptacle 81, the image of the monitor 76 is automatically switched to display the image of the camera 75 on the monitor 76, When the original auger storage receiver is stored in the auger storage receiver 81, it may be configured to return to the display screen of the original monitor 76 (FIGS. 22 to 23).
82 is an auger discharge movement switch.

Next, the operation of the configuration of the embodiment will be described.
When the machine is driven by the traveling device 2, the cereals are harvested by the harvesting unit 4, and the harvested cereals are supplied to the threshing chamber 8 and threshed by the rotating barrel 7 in the threshing chamber 8. The fallen fallen thing falls on the transfer shelf 19 of the rocking sorter 17 and reaches the sheave 20, and the grains and swarf are separated by the rocking of the rocking sorter 17 and the blow of the blower 10. The grains fall from the gap between the sheaves 20 arranged in front and rear, the sawdust moves to the discharge side, and dust and sawdust are sucked out by the dust suction fan 28 at the terminal side of the wind sorting chamber 15. Then, the sawdust that is not sucked by the dust suction fan 28 reaches the Strollac 21 and the waste that does not fall from the Strollack 21 is discharged outside the machine.

The grain that has fallen from the gap of the sheave 20 is taken out by the first conveyor 24 and temporarily stored in the glen tank 5.
In addition, the second product collected by the second conveyor 27 is returned to the second processing chamber for processing, supplied to the wind selection chamber 15 again, and subjected to wind selection processing.

The side view of a combine. The longitudinal side view of a threshing apparatus. The top view of a wind selection room. Schematic of a rotation transmission mechanism. The cross-sectional top view of a threshing apparatus. The top view of the other Example of the most sink plate. The same side view. The side view of a horizontal discharge auger. The side view of an auger tip discharge part. The discharge action state diagram. The front view. Schematic diagram of grain discharge operation. The top view of a control part. The example figure of the screen image of the monitor of a control part. Grain discharge operation state diagram. Grain discharge operation state diagram. Grain discharge operation state diagram. Block Diagram. The top view of a control part. Grain discharge operation state diagram. Block Diagram. The top view of a control part. Grain discharge operation state diagram. Block Diagram.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Airframe frame, 2 ... Traveling device, 3 ... Threshing device, 4 ... Mowing part, 5 ... Glen tank, 6 ... Steering part, 8 ... Threshing room, 9 ... Handling net, 10 ... Air blower, 11 ... Kara casing, DESCRIPTION OF SYMBOLS 12 ... Grain supply device, 15 ... Wind selection room, 16 ... Swing sorting shelf, 17 ... Swing sorting device, 20 ... Sheave, 21 ... Strolack, 22 ... Sorting net, 23 ... Most receiving, 24 ... most conveyors, 26 ... double-dip受樋, 27 ... double-dip conveyor 28 ... dust-exhaust suction fan, 30 ... top sink plate, 31 ... top-side base plate, 32 ... lower surface of the air duct, 34 ... shaft, 35 ... arm, 36 ... rod, 37 ... long hole, 38 ... fixture, 40 ... input pulley, 41 ... crankshaft, 42 ... engine, 43 ... transmission, 44 ... mission, 45 ... grain supply / feed chain, 46 ... Rack 47 ... Transfer protrusion 50 ... Terminal air blow 51, Casin 53 ... Rear discharge port, 55 ... Second suction dust exhaust fan, 56 ... Suction port, 57 ... Discharge port, 58 ... Casing, 67 ... Auger grain discharge port, 68 ... Auger tip discharge unit, 69 ... Mounting cylinder , 70 ... Discharge cylinder part, 71 ... Passive gear, 72 ... Motor for turning, 73 ... Drive gear, 75 ... Camera, 76 ... Monitor, 77 ... Loading platform, 78 ... Operation lever, 80 ... Auger operation lever, 81 ... Auger Storage receptacle.

Claims (4)

An air blower (10) is provided below the threshing chamber (8) surrounded by the handling net (9) below the handling cylinder (7), and wind selection is performed from the lower side of the threshing chamber (8) to the end side in the direction of workpiece transfer. The chamber (15) is provided, and the wind sorting chamber (15) is provided with a rocking sorting device (17) for sorting the grains by the blowing and swinging of the blower tang (10), and below the rocking sorting device (17). The first receptacle (23) and the second receptacle (26) are respectively provided in the first receptacle (23) and the second receptacle (26). ) And a first sink plate (30) whose tip is swung up and down is provided between the first conveyor (24) and the second conveyor (27), and the first sink (30) is moved up and down. The movement is a gentle inclined state substantially parallel to the first bottom plate (31) provided between the first conveyor (24) and the second conveyor (27), So as to be performed between the steep slope state steep than the inclined state, the most-side base plate (31), the angle of inclination and arrangement, the first bridge from the winnowing fan casing 11 of the blower winnowing fan (10) It was comprised so that it might be located on the substantially the same inclination as the inclination of the lower surface (32) of the ventilation duct provided toward the eaves (23) .   The threshing apparatus according to claim 1, wherein the first sink plate (30) is divided into front and rear portions or provided with a movable sink plate (30A) that is movable at a rear portion thereof so that the length thereof can be changed and adjusted.   3. The rack (46) having a transfer projection (47) for transferring sawdust to the rear side on the top surface of the first sink plate (30) or the moving sink plate (30A) according to claim 1 or claim 2. Threshing devices arranged in parallel in the direction at predetermined intervals.   In Claim 1 or Claim 2 or Claim 3, between the first conveyor (24) and the second conveyor (27), there is provided a terminal-side air blower (50) for blowing air upward or to the rack (46). Threshing device.

Images