JP2004000254A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sorting device of a combine harvester capable of leading into a rocking body a large-capacity sorting wind corresponding to the increase in grain amount, and maintaining a high level of sorting performance. <P>SOLUTION: A winnower 35 for blowing the sorting wind is arranged on the front and lower side of a rocking body 51 of the sorting device B. The device is provided with a shutter 279 with which an upper suction port 8a of the winnower can be opened and closed a shutter 277 with which a lower suction port 8b of the winnower can be opend and closed, a connecting arm 276 fixed onto the shutter, and a turning arm 285 for fixing the shutter. An operating wire 258 connected to an operating arm 253 of a waste straw amount detection means 250 is connected to the connecting arm 276. When detecting a large amount of waste straws by the waste straw amount detection means 250, the connecting arm 276 is turned to rotate the shutter 279, thereby opening the upper suction port 8a. Furthermore, the turning arm 285 is turned to rotate the shutter 277, thereby opening the lower suction port 8b. <P>COPYRIGHT: (C)2004,JPO

Description

(4) The present invention relates to a configuration for adjusting the amount of Karin air that generates a sorting wind below a sorting device in a combine.

2. Description of the Related Art Conventionally, a swinging body disposed in a sorting chamber such as a combiner has a front portion of the swinging body pivotally supported so as to be swingable, and a rear portion of the swinging body connected to a crankshaft or an eccentric shaft to drive the shaft. As a result, the swinging body is swung in the front-rear direction, and sorting is performed while sending chaff and straw chips backward, and at the same time, the sorting wind from Karino, which is disposed below the swinging body, is sent to the inside of the swinging body and the swinging body. A wind selection was performed by blowing air downward, and a specific gravity selection was performed in the chaff sheave section to sort into the first thing, the second thing, straw waste, and the like.
In addition, the difference in the amount of cereal stalk between the time of recirculation at the end of the field or at the beginning or 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.

JP-A-7-123849

The present invention solves the following problems.
First, the amount of air sucked from the suction port is adjusted by turning the second shutter and the third shutter in the rotation of Karino, so that the air volume can be adjusted with a simple configuration. There is no need to provide a complicated speed change mechanism, such as changing the number, and the structure is reduced in cost.
Second, when an increase in waste is detected, the second shutter and the third shutter are rotated, the amount of intake air to each fan is increased, and a large-volume sorting wind is shaken in accordance with the increase in the amount of grain. Provided is a sorting device that can be introduced into a moving main body and maintains a high sorting performance.

The present invention is configured as follows in order to solve such a problem.
At the front lower part of the swinging body 51 of the sorting device B, there is provided a Karino 35 for sucking air from the side and blowing the sorting wind to the swinging body 51, and a shutter 279 capable of opening and closing the upper suction port 8a of the Karino 35. And a connecting arm 276 fixed to the shutter 279, a shutter 277 for opening and closing the lower suction port 8b of the Karino 35, and a rotating arm 285 for fixing the shutter 277. The operation wire 258 connected to the operating arm 253 of the straw amount detection means 250 is connected to the connection arm 276 so that the operation wire 258 is connected to the connection arm 276. When a large amount of straw is detected by the straw amount detecting means 250, the connecting arm 276 is rotated, the shutter 279 is rotated upward, the upper suction port 8a is opened, and the rotation arm is further rotated. 285 is rotated, the shutter 277 is rotated downward, in which lower suction port 8b is opened.

With the configuration described above, the present invention has the following effects.
At the front lower part of the swinging body 51 of the sorting device B, there is provided a Karin 35 which sucks air from the side and blows a sorting wind to the swinging body 51, and the second suction port 8a of the Karino 35 can be opened and closed. A shutter 279, a connecting arm 276 fixed to the second shutter 279, a third shutter 277 for opening and closing the lower suction port 8b of the Karino 35, and a rotating arm 285 for fixing the third shutter 277, The second shutter 279 and the third shutter 277 are urged by a spring to a position where the upper suction port 8a and the lower suction port 8b are always covered. When the operation wire 258 connected to the operation arm 253 is connected and a large amount of straw is detected by the straw amount detection means 250, the connection arm 276 rotates and the second shutter 279 rotates upward. Then, the upper suction port 8a is opened, the rotation arm 285 is further turned, the third shutter 277 is turned downward, and the lower suction port 8b is opened, so that the following effects are obtained. Things.
First, the amount of air sucked from the suction port is adjusted by turning the second shutter and the third shutter in the rotation of Karino, so that the air volume can be adjusted with a simple configuration. There is no need to provide a complicated speed change mechanism, such as changing the number, and the cost is reduced.
Second, when an increase in waste is detected, the second shutter and the third shutter are rotated, the amount of intake air to each fan is increased, and a large-volume sorting wind is shaken in accordance with the increase in the amount of grain. It is possible to provide a sorting device that can be introduced into the moving main body and maintains a high sorting performance.

The problems to be solved by the present invention and the means for solving the problems are as described above. Next, the configuration of the embodiment shown in the accompanying drawings will be described.
Figure 1 is a side view of the whole combine,
FIG. 2 is a skeleton diagram showing a power transmission configuration to the sorting device,
FIG. 3 is a side sectional view of the 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 a karamin
FIG. 7 is a partial plan view showing the arrangement of the wind direction plates,
FIG. 8 is a side view showing the amount of straw detection means.

In FIG. 1, the whole structure of the combine will be described.
The body frame 2 is placed on the crawler-type traveling device 1, and the raising and reaping device A is disposed at the front end of the body frame 2 so as to be able to move up and down. The raising and reaping device A projects the weeding board 3 at the front end. Then, the case 4 is raised and a case 4 is erected in the rear portion, and the tine is raised by rotating the tine protruding from the case 4 to raise the grain stalk, and the cutting blade 5 arranged at the rear of the weeding plate 3 The mower is harvested at, and transported to the rear by the upper transport device, the lower transport device, and the vertical transport device 6, and the root is transferred to the feed chain 7 from the upper end of the vertical transport device 6, and the culm is introduced into the threshing device. At the rear end of the feed chain 7, a straw conveying device 16 is disposed, and the discharged straw is cut by a straw cutter device 17 disposed below the rear of the straw conveying device 16. To the field. On the side of the threshing device, a grain tank 12 for storing the sorted granules is provided, and in front of the grain tank 12, an operation unit 19 is provided.

As shown in FIG. 3, in the threshing apparatus B, a handling chamber in which a handling cylinder 20 having a shaft center in the front-rear direction and a dust outlet processing cylinder 21 are laid horizontally is formed at an upper portion of the sorting device B, and a lower portion of the sorting device B is provided. A sorting room for sorting threshed paddy and paddy straw is formed below the handling room. The blades 20a, 20a... Are planted around the handling cylinder 20 of the handling room, and a crimping net 31 is provided around the lower portion of the handling cylinder 20 so that only chaff or small straw chips leak down, and the I am trying to be sorted out.
The dust discharge port processing cylinder 21 is horizontally laid parallel to the handling cylinder 20 on the side of the Glen tank 12 at the rear of the handling cylinder 20, and is configured to process unprocessed spike sticking particles and the like that could not be processed by the handling cylinder 20. Items are transported backward and discharged outside the machine.

Next, the drive configuration will be described with reference to the skeleton diagram shown in FIG.
The output shaft 60 projects in the left-right direction of the engine E, one end of the output shaft 60 is input to the gear case 259, and power is transmitted from the gear case 259 to the transmission case via a pulley and a belt to drive the traveling device. In addition, through a work clutch in the gear case 259, the power is transmitted to the raising and reaping device A disposed at the front of the machine body, and at the same time, the sorting device B and the straw discharge device are driven. An output shaft protruding rearward from the gear case 259 drives a dust port processing cylinder 21 and a handling cylinder 20 via pulleys and belts.

Further, the drive shaft 261 protrudes laterally from the gear case 259, and the end of the drive shaft 261 is input to a power transmission unit disposed on the left side of the body, and transmitted to the rear via a pulley and a belt. 35, the power is transmitted to the first sorting conveyor 22. Further, a second pulley 274 is fitted on the conveyor shaft 273 of the first conveyor 22 separately from the pulley 269, and a belt is wound around the second pulley 274, and the second conveyor 23, the sorting main body 51 It is also possible to drive the exhaust fan 30 and the straw cutter device 17 for exhausting and to transmit the power to a binding device disposed further rearward in the rear of the fuselage.
Further, on the other side of the first conveyor 22, a fry conveyor 13 is driven via a bevel gear, and the paddy conveyed by the first conveyer 22 is conveyed to the Glen tank 12 via the fry conveyor 13. ing. In addition, a reduction conveyor 62 is driven via a bevel gear at the other end of the second conveyor 23, and a discharge port at the other end of the reduction conveyor 62 is arranged facing the front side of the crimping net 31 in the handling room. , The second product is reduced and the sorting is performed again.

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

Then, as shown in FIG. 3, in the sorting room, a swinging main body 51, a Karamin 35, a pre-fan 41 and the like are arranged, and the threshed paddy and straw waste etc. are sorted out by specific gravity sorting and wind sorting. Sorting is performed on things, second things, straw chips, etc. As shown in FIG. 4, the sorting room has several support columns 25, 25... Standing upright, and side walls 8 are fixed to the support columns 25, 25. An outer side surface of the chamber is formed.
Further, an actuator 257 is provided 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 55 of the swinging main body 51 is operated.

The swing body 51 is formed by welding a steel material such as an iron plate into a box shape to increase rigidity. The front end of the swinging body 51 is disposed below the front end of the handling cylinder 20, and the rear end of the swinging body 51 extends to 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, so that the swing body is swung by the rotation of the crankshaft 53.
The swinging main 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 51 a opened at the front of the second Glen pan 59. Then, the rear part of the second Glen pan 59 is swelled downward from the rear part to form a swelled part 51b, and a drop port 51c is opened on the lower surface of the swelled part 51b.

第一 The first Glen pan 58 and the second Glen pan 59 are formed so that the plate is made wavy by resin and the paddy is easily transported backward. The first Glen pan 58 and the second Glen pan 59 are screwed to the swing body 51 using bolts.

At the rear of the first grain pan 58, the sieve body 71 is disposed so as to protrude rearward, and thereafter, a chaff portion 55 is provided to horizontally connect a plurality of chaff fins 54, 54. are doing. The mesh-shaped grain sheave 57 extends from the front part of the fall port 51c at the lower part of the chaff part 55 to the middle part rearward.
Further, a pre-fan 41 is disposed below and in front of the oscillating body 51, and a Karamin 35 is disposed below an intermediate position in the front-rear direction of the oscillating body 51, and the pre-fan 41 is introduced from the sorting wind introduction port 51 a. The wind passes between the lower surface of the first Glen pan 58 and the upper surface of the second Glen pan 59, and sorts the paddy conveyed on the chaff 55 by the wind.
The wind of the Kara-Mino 35 is passed through the falling port 51c and blown up as a sorting wind from the chaff 55, and the swinging of the swinging body 51 and the sorting wind perform specific gravity sorting and wind sorting by the chaff 55.

The chief portion 55 has a movable chaff portion 55a that can automatically change the angle of the chaff fins 54, 54... Are formed, and a fixed chaff portion 55c in which the angles of the chaff fins 54 are fixed.
The movable chaff portion 55a is formed from a position behind the second grain pan 59 at a front portion of the swinging body 51 to a position above and behind a grain sheave 57 disposed at the dropout 51c of the swinging body 51. The manual chaff 55b is disposed above the dropout 51c that is not covered by the grain sheave 57 behind the movable chaff 55a, and the fixed chaff 55c is disposed at the rear of the swinging body 51.
.. Of the movable chaff portion 55a are connected by a connecting plate 88 disposed on the side of the swinging body 51 shown in FIG. It is connected to the above-described actuator 257 via a wire 254 and connected to a straw amount detecting means 250 described later via an operation wire 256.

The grain stalk amount detecting means 250 is disposed below the straw conveying device 16. As shown in FIG. 8, the straw amount detecting means 250 includes a rotation arm 251 pivotally supported by a rotation arm 251 and a detection arm 252 projecting horizontally and an operation arm 253 projecting vertically upward. 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. The operation wire 256 is pulled through the 253, 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 pre-fan 41 will be described.
As shown in FIG. 6, the Karamin 35 is composed of a rotating shaft 236 having a shaft center in the left-right direction and vanes 238 projecting radially from the rotating shaft 236 in a radial direction. The rotating shaft 236 of the Karino 35 is supported by a pivot plate 227 fixed on the side.
Further, the front around the rotation of the Karino 35 is covered with a front guide plate 239, the lower portion is covered with an arc-shaped lower guide plate 240 in a side view, and the upper portion is covered with an upper guide plate 234. A rear guide plate 241 is disposed 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 pivoting plate 227. The air flows along the front guide plate 239 to generate wind, and is blown along the upper guide plate 234 to the air passage between the upper guide plate 234 and the rear guide plate 241.

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. It is placed and fixed on the upper part of the fixed base 272 on the side surface.
The wind direction plates 270, 270,... Are L-shaped plates, one surface of which is fixed on the fixed plate 271 and the other surface of which is upright. Are arranged in the left-right direction on the fixed plate 271, and the rear part of each of the wind-direction plates 270, 270 is arranged in an inclined manner so as to face left and right outside. ing.
, Arranged on the left side (upper side on the plane of FIG. 7) of the wind direction plates 270, 270,. The wind direction plates 270, 270,... Disposed on the lower side (on the paper surface) are inclined so that the rear portions thereof face right.
The inclination angles (inclination angles with respect to the front-rear direction) of the inner wind direction plates 270, 270 are larger than the inclination angles of the wind direction plates 270, 270 from the left and right outer sides. To adjust the air flow between the sheave 57 of the swinging body 51 and the first conveyor 22 uniformly in the left-right direction, thereby preventing the accuracy of sorting on the left and right sides in the swinging body 51 from being reduced. Out.

3 and 5, the pre-fan 41 comprises a fan shaft 242 and blades 244 projecting radially from the fan shaft 242. It is located between.
That is, a substantially circular opening is formed in the side plate 8, and a substantially “U” -shaped pivot plate 246 is fixed to the upper and lower central portions of the opening, and a position between the left and right pivot plates 246 is provided. The fan shaft 242 is pivotally supported. The openings on the side of the pre-fan 41 are formed with suction ports 8c and 8d with the pivot plate 246 as a boundary.
Also, 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. Air is blown from the inlet port 51a to perform wind separation.
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 suction amount adjusting mechanism K for adjusting the suction amount is arranged in the present invention. As shown in FIG. 5, the suction amount adjusting mechanism K includes a first shutter 278 for covering the suction port 8c of the side plate 8, a second shutter 279 for covering the suction port 8a on the side of the Karino 35, A third shutter 277 for covering the suction port 8b on the side of the Karino 35, a connecting arm 276 for fixing the first shutter 278 and the second shutter 279, a horizontal shaft 275 for pivotally supporting the arm 276, and a third shutter. The rotary arm 285 is provided with a rotating arm 285 to which the 277 is fixed, and a horizontal shaft 286 for pivotally supporting the rotating arm.

That is, the horizontal shaft 275 protrudes laterally from the support pillar 25, the center of the connecting arm 276 is pivotally supported by the horizontal shaft 275, and the first shutter 278 is fixed to the front end of the connecting arm 276. A second shutter 279 is fixedly provided at the rear end of the connection arm 276 behind the connection arm 275, and a contact pin 287 protrudes below the center of the connection arm 276. The connecting arm 276 is urged in a closing direction by a spring (not shown), and is held by the first shutter 278 and the second shutter 279 at a position where the suction ports 8c and 8a are covered.
An operation wire 258 is fixed to the front 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, protrudes laterally from the upper front part of the pivot plate 227. One end of a rotation arm 285 is pivotally supported by the horizontal shaft 286, A third shutter 277 is fixed to the other end of the opening 285 and is 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 extends 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 detection means 250, the chaff fins 54 of the movable chaff portion 55a are tilted, and at the same time, the connecting arm 276 is rotated via the operation wire 258. Then, as shown by the two-dot chain line in FIG. 5, the first shutter 278 is turned downward and the second shutter 279 is turned upward to open the suction port 8c and the suction port 8a, and the air flowing into the fans 41 and 35 is opened. The volume is increased, and the air volume is increased so that a large number of grains can be sorted.
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. Then, the rotating arm 285 is rotated about the horizontal axis 286, the third shutter 277 is rotated downward, the suction ports 8a and 8c and the suction ports 8b are opened, and the air flowing into the fans 41 and 35 is opened. The amount 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 each of the shutters 277, 278, 279 is rotated in a direction to close the suction ports 8a, 8b, 8c, and the amount of inflow air is reduced. We do not discharge particles. However, the other end of the wire 258 is connected to a lever provided on 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.

It is a whole combine side view. It is a skeleton diagram which shows the power transmission structure to a sorting device. It is a sorting apparatus side sectional view. It is a side view showing the side of a sorting room. It is a side view which shows the front part of the sorting room which has the suction amount adjustment mechanism of this invention. FIG. 3 is a partial side view and a partial cross-sectional view showing a sorting room having Kara-min. FIG. 3 is a partial plan view showing an arrangement of a wind direction plate. It is a side view which shows the amount of straw detection means.

Explanation of reference numerals

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

Claims (1)

At the front lower part of the swinging body 51 of the sorting device B, there is provided a Karino 35 for sucking air from the side and blowing the sorting wind to the swinging body 51, and a shutter 279 capable of opening and closing the upper suction port 8a of the Karino 35. A connecting arm 276 fixed to the shutter 279, a shutter 277 for opening and closing the lower suction port 8b of the Karino 35, and a rotating arm 285 for fixing the shutter 277.
Both shutters are urged by springs to positions where the upper suction port 8a and the lower suction port 8b are always covered.
An operation wire 258 connected to the operation arm 253 of the straw amount detection means 250 is connected to the connection arm 276,
When a large amount of straw is detected by the straw amount detecting means 250, the connecting arm 276 is rotated, the shutter 279 is rotated upward, the upper suction port 8a is opened, and the rotating arm 285 is further rotated. , The shutter 277 is rotated downward, and the lower suction port 8b is opened.

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