JPH10295175A - Selector for combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust the amount of a selected wind by a husk filter and a pre-fan to send a selecting air to a rocking main body by sucking air from a side part at the front/lower side of the rocking main body within a selecting room at the lower part of a threshing selector. SOLUTION: A first shutter 278 capable of opening/closing the suction port 8c of the pre-fan 41 and a second shutter 279 capable of opening/closing the upper part of the suction port 8c of the fan mill 35 are connected with each other by a connecting arm 276, a third shutter 277 opening/closing the lower part of a suction port 8b of the fan mill 35 is rotated by abutting a projecting and abutting pin 287 on the connection arm, plural wind direction boards are arranged in a right/left direction on an air path behind the fan mill 35 in a tilting state so as to make the rear part of each wind direction board face outward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arrangement for adjusting the air volume of Karin and prefan for generating a separation wind below a separation device.

[0002]

2. Description of the Related Art Conventionally, a swinging body disposed in a sorting chamber such as a combiner has a front part of the swinging body pivotally supported so as to be swingable, and a rear part of the swinging body connected to a crankshaft or an eccentric shaft. By driving the shaft, the swing body swings in the front-rear direction,
Sorting is performed while sending paddy and straw scraps backward, and at the same time, wind sorting is performed by blowing the sorting wind from Karino placed below the swinging body into the swinging body and below the swinging body. In the chaff sheave section, specific gravity sorting for sorting the first thing, the second thing, straw waste and the like has been performed. Also, the difference in the amount of cereal stalk between the time of recirculation at the end of the field and the beginning and end of harvesting, and the time of normal work, so that the number of rotations of Karamin is increased or decreased according to the amount of cereal, Techniques for changing the amount of suction into Karino are known.

[0003]

However, in the case of a combine harvester with multiple rows, a large amount of shedding may be sent to the sorting device at a stretch, and in this case, the sorting process may not be performed sufficiently. So, we set up Karino and another fan,
It is conceivable to increase the sorting efficiency by sending the sorting wind to a rocking sorting device. At this time, if the suction amount is changed in accordance with the amount of the karino kernels, the other fan will have a constant air volume and the sorting accuracy will change. Therefore, a configuration in which the suction amount of another fan can be changed in accordance with the grain is desired.

[0004]

SUMMARY OF THE INVENTION In order to solve such a problem, the present invention suctions air from a side portion of a swinging body in a sorting chamber below a grain sorting apparatus and sucks air into the swinging body. A connection arm is used to connect the Karin that sends the sorting wind, the first shutter that can open and close the suction port of the prefan, and the second shutter that can open and close the suction port of the Karin. The third shutter that opens and closes the lower portion of the suction port is rotated by bringing a contact member protruding from the connecting arm into contact. In addition, a plurality of wind direction plates are arranged in the left and right direction on the air path at the rear of Karino, which sucks air from the side and blows the sorting wind to the swinging body, in front of and below the swinging body in the sorting room below the sorting device. The wind direction plates are arranged in an inclined manner so that the rear portion faces outward.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The problems to be solved by the present invention and the means for solving them are as described above. Next, the configuration of the embodiment shown in the accompanying drawings will be described. FIG. 1 is a side view of the entire combine, FIG. 2 is a skeleton diagram showing a power transmission structure to the sorting device, FIG. 3 is a sectional side view of the sorting device, FIG. 4 is a side view showing a side of a sorting room, and FIG. FIG. 6 is a side view showing a front part of a sorting chamber having a suction amount adjusting mechanism, FIG. 6 is a partial side view showing a sorting chamber having Karin, a partial cross-sectional view, and FIG. 7 is a partial plan view showing an arrangement of wind direction plates; FIG. 3 is a side view showing the amount of straw detection means.

Referring to FIG. 1, the overall structure of the combine will be described. A body frame 2 is mounted on a crawler-type traveling device 1, and a raising and reaping device A is arranged at the front end of the body frame 2 so as to be able to move up and down. The cutting and reaping device A projects the weeding board 3 at the front end to sown the culm, and raises the stalk to the rear of the stalk.
The raising of the tine raises the grain stem by the rotation of the tine protruding from the case 4, and cuts the root of the plant with the cutting blade 5 disposed at the rear of the weeding board 3, and the upper transport device, the lower transport device, It is transported to the rear by the vertical transport device 6, and the vertical transport device 6
The feedstock is passed from the upper end of the feed chain 7 to the feed chain 7 and conveys the culm into the threshing device. The provided straw cutter device 17 cuts the delivered straw and discharges it to the field. On the side of the threshing device, a Glen tank 12 for storing the sorted fine granules is provided, and in front of the Glen tank 12, an operation unit 19 is provided.

Threshing device B As shown in FIG. 3, a handling chamber in which a handling cylinder 20 having a shaft center in the front-rear direction and a dust outlet treatment cylinder 21 are laid horizontally is formed above the sorting device B. At the lower part of B, below this handling room, there is formed a sorting room for sorting threshed paddy and rice straw. The blades 20a, 20a,... Are planted around the handling cylinder 20 in the handling room, and a crimping net 31 is provided around the lower portion of the handling cylinder 20 so that only the chaff or small straw chips leak down, and the inside of the sorting chamber. I am trying to be sorted out. The dust outlet processing cylinder 21 is provided in the Glen tank 12 at the rear of the handling cylinder 20.
It is horizontally laid on the side parallel to the handling cylinder 20, and treats the attached spikelets and the like that could not be processed by the handling cylinder 20, conveys the unprocessed material backward, and discharges it outside the machine.

Next, a driving structure will be described with reference to a skeleton diagram shown in FIG. An output shaft 60 projects in the left-right direction of the engine E, and one end of the output shaft 60 is connected to a gear case 259.
To drive the traveling device by transmitting power from the gear case 259 to the transmission case via pulleys and belts, and to a lifting mechanism disposed at the front of the fuselage via a work clutch in the gear case 259. Then, the power is transmitted to the reaper A, and at the same time, the sorting device B and the straw processing device are driven. An output shaft protruding rearward from the gear case 259 drives a dust outlet processing cylinder 21 and a handling cylinder 20 via pulleys and belts.

A drive shaft 261 protrudes laterally from the gear case 259, and an end of the drive shaft 261 is input to a power transmission unit arranged on the left side of the body, and is pulled rearward via a pulley and a belt. Karino 35 is transmitting the power to the first sorting conveyor 22. Further, a pulley 269 is attached to the conveyor shaft 273 of the first conveyor 22.
Separately, a second pulley 274 is fitted, a belt is wound around the second pulley 274, and the second conveyor 23,
It is also possible to drive the sorting main body 51, the exhaust fan 30 for exhausting, and the straw cutter device 17 and transmit power to a binding device disposed at the rear of the body. Further, on the other side of the first conveyor 22, a frying conveyor 1 is connected via a bevel gear.
3 is driven, and the paddy conveyed by the first conveyor 22 is conveyed to the Glen tank 12 through the fry conveyor 13. A reduction conveyor 62 is driven via a bevel gear to the other end of the second conveyor 23, and the discharge port at the other end of the reduction conveyor 62 is connected to the crimp net 3 of the handling room.
It is arranged so as to face the front side of No. 1 and the second product is reduced and sorted again.

On the other hand, power can be transmitted from the output shaft 60 projecting to the right side of the engine E to the discharge conveyor 63 via pulleys, belts, interlocking shafts and bevel gears, and the vertical conveyor 64 and the discharge auger 65 can be driven. As a configuration,
The paddy stored in the Glen tank 12 can be discharged.

As shown in FIG. 3, a swinging body 51, a Karamin 35, a pre-fan 41 and the like are arranged in the sorting room, and threshed paddy and straw chips are separated by specific gravity and wind. Sorting is performed for the first thing, the second thing and straw waste.
As shown in FIG. 4, the sorting room is provided with several support columns 25, 25... Standing upright, and the support columns 25, 25.
The side wall 8 is fixedly provided at the side, and the outer side surface of the sorting chamber is formed. Further, an actuator 257 is disposed at the front of the sorting chamber, and the actuator 257 is driven by the operation of the operation unit 1, and a later-described chaff unit 5 of the swinging body 51.
5 is being operated.

The swinging body 51 is formed by welding a steel material such as an iron plate in a box shape to increase rigidity. The front end of the swing main body 51 is disposed below the front end of the handling cylinder 20, and the rear end of the swing main body 51 extends below the rear of the dust outlet processing cylinder 21. A pivot shaft 52 is provided at a lower front portion of the swing main body 51, and a rear portion thereof is pivotally supported by a crankshaft 53, and swings by the rotation of the crankshaft 53. The swinging body 51 has a first Glen pan 58 disposed at the front, a second Glen pan 59 with the lower part lowered one step, and a separation wind introduction port 51a opened at the front of the second Glen pan 59. Then, the rear portion of the second Glen pan 59 is swelled downward from the rear portion to form a swelling portion 51b, and a drop port 51 is formed on the lower surface of the swelling portion 51b.
c is open.

The first grain pan 58 and the second grain pan 59 are formed by making the plate into a wavy shape with resin so that the paddy can be easily transported backward. The first Glen Pan 58
And the second Glen pan 59 are oscillated using the bolts.
Is screwed into.

At the rear of the first grain pan 58, a sieve body 71 is disposed so as to protrude rearward, and thereafter a plurality of chaff fins 54.5 are connected to the lower second grain pan 59.
.. Are arranged horizontally. The mesh-shaped grain sheave 57 extends from the front part of the falling port 51c at the lower part of the chaff part 55 to the middle part rearward. Further, a pre-fan 41 is arranged in front of and below the oscillating body 51, and a karamino 35 is arranged below a halfway position of the oscillating body 51 in the front-rear direction. The wind passes between the lower surface of the first Glen pan 58 and the upper surface of the second Glen pan 59, and the chaff portion 5
The paddy conveyed on the top 5 is sorted by wind. The wind of the Kara-Mino 35 is passed through the drop 51c and the chaff 5
5 is blown up as a sorting wind, and the specific gravity sorting and the wind sorting by the chaff 55 are performed by the swing of the swing body 51 and the sorting wind.

The chaff portion 55 has a movable chuff portion 55a which can automatically change the angle of the chaff fins 54, 54... A manual chaff portion 55b capable of changing the
The fixed chaff 55c in which the angle of 54 is fixed
Are formed. The movable chaff portion 55a is provided with a grain sheave 57 disposed at a drop port 51c of the swinging main body 51 from a position behind the second Glen pan 59 at a front portion of the swinging main body 51.
Is formed to the upper rear. The manual chaff section 55
The b is disposed above the drop port 51c that is not covered by the grain sheave 57 behind the movable chaff section 55a, and the fixed chaff section 55c is disposed at the rear of the swing body 51. .. Of the movable chaff portion 55a are connected by a connecting plate 88 arranged on the side of the swinging body 51 shown in FIG. It is connected to the above-described actuator 257 through a wire 254 and is connected to the above-mentioned actuator
It is connected to.

The cereal culm amount detecting means 250 is disposed below the straw conveying device 16. As shown in FIG. 8, the straw amount detection means 250 includes a rotation arm 251 pivotally supported, and a detection arm 252 that projects horizontally in the rotation axis 251 and an operation arm 253 that projects upward in the vertical direction. And the other end of the operation wire 256 is connected to the operation arm 253. Therefore, the stock of the straw is clamped by the chain and the rail of the straw transport device 16, and when the amount of the straw is large, the rail moves downward, the detection arm 252 is rotated, and the operating arm is moved. 253, the operation wire 256 is pulled, and the link mechanism 255 is rotated.
The connecting plate 88 is moved, and the chaff fins 54 are integrally tilted.

Next, the configuration of the Karino 35 and the prefan 41 will be described. As shown in FIG. 4, the Karamin 35 has a rotating shaft 236 having a shaft center in the left-right direction and the rotating shaft 236.
The blade body 238.2 protruding radially from the radial direction 36
.., And the rotating shaft 236 of the Karino 35 is supported by a pivot plate 227 fixed to the side.
The front guide plate 23 is located in front of the rotation of the Karino 35.
9, and the lower guide plate 240 is shaped like a circular arc when viewed from the side.
The upper part is covered with the upper guide plate 234. A rear guide plate 241 is arranged at the end of the lower guide plate 240 in parallel with the upper guide plate 234, and an air passage is formed between the rear guide plate 241 and the upper guide plate 234. An opening is provided in the side wall 8 on the side of the Karino 35, and suction ports 8a and 8b are formed vertically above and below the pivot plate 227, and the air introduced therefrom is supplied to the lower guide plate 240. The wind flows along the front guide plate 239 to generate wind, and the upper guide plate 234 and the rear guide plate 2 are moved along the upper guide plate 234.
The air is blown to the air path between 41 and.

Further, a plurality of wind direction plates 270, 270,..., Which are long in the front-rear direction, are disposed in an air path formed between the upper guide plate 234 and the rear guide plate 241. The wind direction plates 270, 270,... Are fixed on the fixed plate 271 laid horizontally in the sorting room in the front-rear direction, as shown in FIGS. Side fixed base 272
It is placed and fixed on the upper part. The wind direction plates 270 and 270
.. Are plate members formed in an L shape, one surface of which is fixed on the fixed plate 271 and the other surface of which is upright. The wind direction plate 270
., Are arranged on the fixed plate 271 in the left-right direction, and the rear part of each wind direction plate 270, 270,. That is,
The wind direction plates 270, 270,... Disposed on the left side (upper side on the paper surface of FIG. 7) among the wind direction plates 270, 270,.
-With the rear part facing the left side and the right side (the lower side on the paper of FIG. 7)
The wind direction plates 270, 270,... The wind direction plate 270.
As for the inclination angle of 270..., The inclination angle (inclination angle with respect to the front-rear direction) of the inner wind direction plates 270 and 270 is arranged larger than the left and right outer sides, and the wind in the air path is guided to the left and right sides. The amount of air blown between the Glen Sheave 57 of the oscillating body 51 and the first conveyor 22 is adjusted uniformly in the left-right direction, thereby preventing the accuracy of sorting on the right and left sides of the oscillating body 51 from being reduced.

As shown in FIGS. 3 and 5, the pre-fan 41 comprises a fan shaft 242 and vanes 244 projecting radially from the fan shaft 242. It is arranged between the component plates 8. That is,
A substantially circular opening is formed in the side plate 8, and a substantially “４６” -shaped pivot plate 246 is fixed to the upper and lower central portions of the opening, and a fan is provided between the left and right pivot plates 246. Axis 2
42 is pivoted. The opening on the side of the prefun 41,
The suction ports 8c and 8d are formed with the pivot plate 246 as a boundary. Further, the front and lower surfaces of the pre-fan 41 are covered using arc-shaped guides, and the rotation of the pre-fan 41 causes air to be sucked from the suction ports 8c and 8d. The air is blown from the inlet 51a to perform wind selection. Further, a suction port 245 is opened at the front of the pre-fan 41 so that hot air generated by exhaust heat of the engine E can be introduced into the pre-fan 41.

As described above, the Karino 35 and the pre-fan 41 are configured so that air can be sucked from the side, and the present invention is provided with a suction amount adjusting mechanism K for adjusting the suction amount. The suction amount adjusting mechanism K is, as shown in FIG.
First shutter 27 covering suction port 8c of side plate 8
8, a second shutter 279 covering the suction port 8a on the side of Karino 35, a third shutter 277 covering the suction port 8b on the side of Karino 35, a first shutter 278 and a second shutter 27.
9, a horizontal shaft 275 for pivotally supporting the arm 276, a rotary arm 285 for fixing the third shutter 277, and a horizontal shaft 286 for pivotally supporting the rotary arm. I have.

That is, the horizontal shaft 275 protrudes laterally from the support column 25, the central portion of the connecting arm 276 is pivotally supported by the horizontal shaft 275, and the first shutter 27 is attached to the front end of the connecting arm 276.
8, a second shutter 279 is fixed to the rear end of the connecting arm 276 behind the horizontal axis 275, and the connecting arm 27
A contact pin 287 protrudes from the lower part of the center part of the frame. The connecting arm 276 is urged in a closing direction by a spring (not shown), and a first shutter 278 and a second shutter 279 are provided.
Are held at the positions where the suction ports 8c and 8a are covered. An operation wire 258 is fixedly provided at a front portion of the connection arm 276, and the other end of the operation wire 258 is guided into the outer case 259, and is connected to the operation arm 253 of the straw amount detection means 250 described above. ing.

A horizontal shaft 286, which is the center of rotation of the third shutter 277, projects laterally from the front upper portion of the pivot plate 227. One end of a rotary arm 285 is pivotally supported by the horizontal shaft 286, The third shutter 27 is provided at the other end of the rotation arm 285.
7 is fixed and urged by a spring (not shown) to a position where the opening 8b is covered. A rod 288 is fixedly mounted on the front upper portion of the rotation arm 285, and the rod 288 is positioned above the contact pin 287 on the connection arm 276, on a rotation locus about the horizontal axis 275 of the contact pin 287. Has been extended.

Therefore, when a large amount of straw is detected by the straw amount detecting means 250, the chaff fins 54 of the movable chaff portion 55a are tilted, and at the same time, the connecting arm 276 is connected via the operation wire 258. Rotates,
As shown by the two-dot chain line in FIG.
By rotating the second shutter 279 upward, the suction port 8c and the suction port 8a are opened, the amount of air flowing into the fans 41 and 35 is increased, and the amount of air can be increased to sort large amounts of grains. Like that. Further, when a large amount of straw is detected by the straw amount detecting means 250, the connecting arm 276 rotates, and the contact pin 287 on the connecting arm 276 contacts the rod 288 at the end of the rotating arm 285. And the rotating arm 2
85 about a horizontal axis 286, and a third shutter 277.
Is rotated downward, the suction ports 8a and 8c and the suction port 8b are opened, the amount of air flowing into the fans 41 and 35 is further increased, and the ability of the swinging body 51 to select specific gravity is improved.

Conversely, when the amount of straw is reduced, the operation wire 258 is returned and the shutters 277, 278, 279 are returned.
Are rotated in the direction to close the suction ports 8a, 8b, 8c to reduce the amount of inflow air and prevent the fine particles from being discharged. However, the other end of the wire 258 is connected to a lever provided in the operation unit 19 to manually change the air volume, or the end of the wire 258 is connected to an actuator, and the actuator is connected to a grain amount sensor, It can be changed according to the grain.

[0025]

As described above, the present invention has the following effects. That is, as described in claim 1, the amount of air sucked from the suction port is adjusted by opening and closing the first shutter, the second shutter, and the third shutter by the rotation of the pre-fan and the kara-min. With this configuration, the air volume can be adjusted, and there is no need to provide a complicated speed change mechanism for changing the number of revolutions of the pre-fan and Karin, so that the cost is reduced. Further, when the increase of the straw is detected, the first shutter and the second shutter are rotated by a small amount to slightly increase the sorting wind to the swing main body, and further, when the straw amount is increased. In addition, all of the first shutter, the second shutter, and the third shutter are rotated, the amount of air taken into each fan is increased, and a large-volume sorting wind in accordance with the increase in the amount of grain is introduced into the swinging body. It is possible to provide a sorting device that can be introduced and that keeps sorting performance high.

Further, as described in the second aspect, when the sorting wind by Karino is introduced into the swinging body, the sorting wind is concentrated at the center in the left-right direction, and the fine particles are conveyed to the second conveyor. In order to prevent the sorting wind on the left and right sides of the swinging body from weakening and mixing rice straw into the first thing conveyor, multiple wind direction boards are arranged on the wind path of Karamin, and the downstream side of this wind direction board is By arranging it toward the outside, the sorting wind concentrated in the center of the sorting room in the left and right direction is diverted in the left and right direction, so that the sorting wind can be sent evenly to the left and right inside the swinging body In addition, specific gravity sorting can be reliably performed in the entire range within the swinging body, and the sorting performance is improved.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a skeleton diagram showing a power transmission configuration to a sorting device.

FIG. 3 is a side sectional view of a sorting device.

FIG. 4 is a side view showing the side of the sorting room.

FIG. 5 is a side view showing the front part of the sorting chamber having the suction amount adjusting mechanism of the present invention.

FIG. 6 is a partial side view and a partial cross-sectional view showing a sorting room having Kara-min.

FIG. 7 is a partial plan view showing an arrangement configuration of a wind direction plate.

FIG. 8 is a side view showing the amount of straw detection means.

[Explanation of symbols]

 B Sorting device 35 Karino 41 Prefan 8a, 8b, 8c, 8d Suction port 51 Swing body 270 Winding plate 276 Connecting arm 277 Third shutter 278 First shutter 279 Second shutter 287 Contact pin

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Toshio Yamanaka 428 Enami, Okayama City

Claims (2)

[Claims] 1. A mining machine for sucking air from the side and blowing a sorting wind to the swinging body, and a pre-fan disposed below and in front of the swinging body of the sorting device, and opening and closing a suction port of the pre-fan. The first shutter that can be connected to the second shutter that can open and close the upper part of the Karino suction port is connected by a connecting arm, and the third shutter that opens and closes the lower part of the Karino suction port is brought into contact with the contact member protruding from the connecting arm. A combine sorting device characterized in that the combine sorting device is rotated. 2. A plurality of wind direction plates are disposed in the front and lower part of the swinging main body of the sorting device in the left and right direction on an air passage at a rear part of Karamin which sucks air from a side portion and sends a sorting wind to the swinging body. A combine sorter, wherein a rear portion of each wind direction plate is inclined so as to face outward.