JP3734590B2 - Combine sorter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a configuration for adjusting the air volume of a tang and a prefan that generates a sorting air below a sorting device.
[0002]
[Prior art]
Conventionally, an oscillating body disposed in a sorting chamber such as a combiner has a front part of the oscillating body pivotally supported, and a rear part of the oscillating body is connected to a crankshaft or an eccentric shaft to drive the shaft. As a result, the swinging body is swung back and forth, and sorting is carried out while sending slag and swarf etc. to the rear. Wind selection was performed by blowing air downward, and specific gravity sorting for sorting into the first thing, second thing, sawdust, etc. was performed in the chaff sheave part. In addition, since there is a difference in the amount of cereal at the time of turning at the field edge or at the beginning or end of cutting, and during normal work, the rotation speed of tang cocoon can be increased or decreased according to the amount of cereal, A technique for changing the amount of suction into the tang is known.
[0003]
[Problems to be solved by the invention]
However, in the case of a multi-row harvesting combine, a large amount of degranulation may be sent to the sorting device at once, and in this case, the sorting process may not be performed sufficiently. Therefore, it is conceivable to increase the sorting efficiency by providing a Kara and another fan and sending the sorting wind to the rocking sorter. At this time, if the amount of suction is changed in accordance with the amount of grain of tang, the other fan has a constant air volume and the sorting accuracy changes. Then, the structure which can also change the suction amount of another fan according to a grain has been desired.
[0004]
[Means for Solving the Problems]
The present invention is configured as follows in order to solve such problems.
In claim 1, a tang 35 that sucks air from the side and blows sorting air to the swinging main body 51 and a prefan 41 are arranged at the front lower side of the swinging main body 51 of the sorting device B, A first shutter 278 that can open and close the suction port of the pre-fan 41 and a second shutter 279 that can open and close the suction port upper portion of the Kara 35 are connected by a connecting arm 276, and a third shutter 277 that opens and closes the lower port of the Kara 35 is opened. Is rotated by abutting a projecting abutting member on the connecting arm 276.
According to claim 2, in the combine sorting apparatus according to claim 1, a plurality of wind direction plates 270 are arranged side by side in the left-right direction on the rear air path of the tang 35, and each wind direction plate 270 is arranged in the front-rear direction. It is long and is arranged in an inclined shape so that the rear part faces outward in plan view .
[0005]
DETAILED DESCRIPTION OF THE INVENTION
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.
1 is a side view of the entire combine, FIG. 2 is a skeleton diagram showing the 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 chamber, and FIG. FIG. 6 is a partial side view showing a front part of a sorting chamber having a suction amount adjusting mechanism, FIG. 6 is a partial sectional view showing a sorting chamber having a red pepper, FIG. 7 is a partial plan view showing an arrangement configuration of wind direction plates, and FIG. FIG. 5 is a side view showing the waste amount detection means.
[0006]
Referring to FIG. 1, the overall structure of the combine will be described. The body frame 2 is placed on the crawler type traveling device 1, and the reaping device A is arranged at the front end of the body frame 2 so as to be movable up and down. The device A protrudes the weed plate 3 at the front end to weed the cereal, raises the case 4 at the rear, raises the case 4 and causes the cereal to rotate by rotating the tine protruding from the case 4, The stock is cut by the cutting blade 5 disposed at the rear of the grass plate 3 and transported to the rear by the upper transport device, the lower transport device, and the vertical transport device 6, and the stock is fed from the upper end of the vertical transport device 6 to the feed chain. 7, the cereals are transported into the threshing device, and the waste chain conveying device 16 is disposed at the rear end of the feed chain 7, and the waste cutter device 17 disposed below the rear portion of the waste conveying device 16 And cut the waste that has been transported to the field. There. A grain tank 12 for storing the refined grains after sorting is disposed on the side of the threshing apparatus, and an operation unit 19 is disposed on the front of the grain tank 12.
[0007]
As shown in FIG. 3, in the threshing apparatus B, a handling chamber in which a handling cylinder 20 having an axial center in the front-rear direction and a dust feeding port processing cylinder 21 is horizontally formed is formed on the upper part of the sorting apparatus B. In the lower part, a sorting room for sorting the threshed straw and straw is formed below the handling room. The blades 20a, 20a,... Are planted around the handling cylinder 20 of the handling chamber, and a crimp net 31 is provided around the lower part of the handling cylinder 20 so that only scums and small wastes leak out. It will be sorted out. The dust feed processing cylinder 21 is laid in parallel to the cylinder 20 at the rear side of the cylinder 20 at the rear side of the cylinder 20, and the unprocessed ram due to the branch stick attached grains that could not be processed by the cylinder 20. Items are transported backward and discharged out of the machine.
[0008]
Next, the drive configuration will be described using the skeleton diagram shown in FIG. The output shaft 60 protrudes 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, the lifting device disposed in the front part of the machine body is raised via the working clutch in the gear case 259 to transmit the power to the cutting device A, and at the same time, the sorting device B and the waste disposal device are driven. The dust supply port processing cylinder 21 and the handling cylinder 20 are driven through pulleys and a belt from an output shaft protruding rearward from the gear case 259.
[0009]
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 machine body, and transmitted rearward through a pulley and a belt. The power is transmitted to the Kara 35 and the first sorting conveyor 22. Further, a second pulley 274 is fitted to the conveyor shaft 273 of the first conveyor 22 in addition to the pulley 269, and a belt is wound around the second pulley 274 so that the second conveyor 23 and the sorting body 51 are wound. Alternatively, the exhaust fan 30 and the exhaust cutter device 17 can be driven, and the power can be transmitted to a bundling device disposed at the rear of the rear body. In addition, the cereal conveyor 13 is driven on the other side of the first conveyor 22 via a bevel gear, and the straw conveyed by the first conveyor 22 is conveyed to the Glen tank 12 via the cereal conveyor 13. Yes. Further, the reduction conveyor 62 is driven to the other end of the second conveyor 23 via a bevel gear, and the discharge port at the other end of the reduction conveyor 62 is disposed so as to face the front side of the crimp net 31 in the handling room. The second item is reduced and sorted again.
[0010]
On the other hand, from the output shaft 60 protruding to the right side of the engine E, power is transmitted to the discharge conveyor 63 via a pulley, belt, interlocking shaft, and bevel gear, and the vertical conveyor 64 and the discharge auger 65 can be driven. The soot stored in the Glen tank 12 can be discharged.
[0011]
As shown in FIG. 3, the sorting chamber is provided with a swinging main body 51, a red pepper 35, a pre-fan 41, etc., and the threshed straw and the sawdust are the most separated by specific gravity sorting and wind sorting. Sorting is done for things, second thing and waste. As shown in FIG. 4, the sorting chamber is provided with several supporting columns 25, 25,... Around which the side walls 8 are fixed. An outer side surface of the chamber is formed. In addition, an actuator 257 is disposed in the front part of the sorting chamber, and the actuator 257 is driven by an operation in the operation unit 1, and a later-described chaff unit 55 of the swinging main body 51 is operated.
[0012]
The oscillating body 51 is made by welding a steel material such as an iron plate in a box shape to increase rigidity. The front end portion of the swinging main body 51 is disposed below the front end of the handling cylinder 20, and the rear end of the swinging main body 51 extends to the lower rear part of the dust feeding port processing cylinder 21. A pivot shaft 52 is provided at the front lower portion of the rocking body 51, and a rear portion is pivotally supported by the crankshaft 53, so that the rocking body is swung by the rotation of the crankshaft 53. The swinging main body 51 is provided with a first gren pan 58 at the front, and then a second gren pan 59 is arranged with the lower part lowered by one step. A sorting wind inlet 51 a is opened at the front of the second gren pan 59. The rear part of the second Glen pan 59 bulges downward to form a bulged part 51b, and a drop port 51c is opened on the lower surface of the bulged part 51b.
[0013]
The first glen pan 58 and the second gren pan 59 are formed by making the plate body corrugated with resin so that the bag can be easily conveyed backward. The first glen pan 58 and the second gren pan 59 are screwed to the swinging main body 51 using bolts.
[0014]
A sieve body 71 is disposed at the rear part of the first grain pan 58 so as to protrude rearward, and then a chaff part 55 is provided for laterally connecting a plurality of chaff fins 54, 54. is doing. It is covered with a net-like grain sheave 57 from the front part of the drop port 51c at the lower part of the chaff part 55 to the middle part behind it. Further, a pre-fan 41 is disposed in front of and below the swinging main body 51, and a tang 35 is disposed below the position of the swinging main body 51 in the front-rear direction, from the pre-fan 41 introduced from the sorting air introduction port 51a. 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 soot conveyed on the chaff portion 55 is selected by the wind. The wind of Kara 35 passes through the drop port 51 c and is blown up as a sorting wind from the chaff portion 55, and the specific gravity sorting and wind sorting by the chaff portion 55 are performed by the swinging of the swinging main body 51 and the sorting wind.
[0015]
Further, the chaff portion 55 is configured to change the angle of the chaff fins 54, 54... Automatically according to the amount of the cereal and the angle of the chaff fins 54. 54. A manual chaff portion 55b that can be changed into a fixed chaff portion 55c and a fixed chaff portion 55c to which the angle of the chaff fins 54, 54... Is fixed. The movable chaff 55a is formed from the rear position of the second gren pan 59 at the front of the swinging main body 51 to the rear upper side of the grain sheave 57 arranged at the drop port 51c of the swinging main body 51. The manual chaff portion 55b is disposed on the upper portion of the drop port 51c not covered by the grain sheave 57 behind the movable chaff portion 55a, and the fixed chaff portion 55c is disposed on the rear portion of the swinging main body 51. Further, the chaff fins 54, 54... Of the movable chaff 55a are connected by a connecting plate 88 disposed on the side of the swinging main body 51 shown in FIG. The wire 254 is connected to the actuator 257 described above, and the wire 254 is connected to an excretion amount detecting means 250 described later via an operation wire 256.
[0016]
The grain amount detecting means 250 is disposed below the waste transporting device 16. As shown in FIG. 8, the displacement amount detecting means 250 has a rotation shaft 251 pivotally supported, a detection arm 252 projecting horizontally on the rotation shaft 251 and an operation arm 253 projecting upward in the vertical direction. And the other end of the operation wire 256 is connected to the operating arm 253. Therefore, when the stock of the waste is sandwiched between the chain and the rail of the waste transporting device 16 and the amount of waste is large, the rail moves downward, the detection arm 252 is rotated, and the operating arm The operation wire 256 is pulled through 253, the link mechanism 255 is rotated, the connecting plate 88 is moved, and the chaff fins 54, 54,.
[0017]
Next, the configuration of the tang 35 and the prefan 41 will be described. As shown in FIG. 4, the tang 35 includes a rotating shaft 236 having an axial center in the left-right direction and blade bodies 238, 238... Projecting radially from the rotating shaft 236 in the radial direction. The rotary shaft 236 of the tang 35 is supported by a pivoting plate 227 fixed to the side. Further, the front of the rotary rod 35 around the rotation is covered with a front guide plate 239, the lower portion is covered with an arcuate lower guide plate 240, and the upper portion is covered with an upper guide plate 234. A rear guide plate 241 is arranged in parallel with the upper guide plate 234 at the end portion of the lower guide plate 240, and an air passage is formed between the rear guide plate 241 and the upper guide plate 234. In addition, an opening is provided in the side wall 8 on the side of the tang 35, and suction ports 8a and 8b are formed on the upper and lower sides with the pivot plate 227 as a boundary. The air flows along the front guide plate 239 to generate wind, and the air is blown along the upper guide plate 234 to the air path between the upper guide plate 234 and the rear guide plate 241.
[0018]
In addition, a plurality of wind direction plates 270, 270,... That are long in the front-rear direction are disposed in the air passage formed between the upper guide plate 234 and the rear guide plate 241. As shown in FIGS. 6 and 7, the wind direction plates 270, 270,... Are fixed to the fixed plate 271 horizontally mounted on the sorting chamber so as to be inclined in the front-rear direction. It is mounted and fixed on the upper part of the fixed table 272 on the side surface. The wind direction plates 270, 270,... Are plate bodies that are formed in an L shape, one surface is fixed on the fixed plate 271 and the other surface is upright. A plurality of the wind direction plates 270, 270,... Are arranged on the fixed plate 271 in the left-right direction, and the rear portions of the wind direction plates 270, 270,. ing. That is, the rear part of the wind direction plates 270, 270,... Arranged on the left side (upper side on the paper surface in FIG. 7) of the wind direction plates 270, 270,. The wind direction plates 270, 270,... Arranged on the lower side of the paper surface are arranged in an inclined manner with the rear part facing the right side. The inclination angle of the wind direction plates 270, 270,... Is larger than the inclination angle (inclination angle with respect to the front-rear direction) of the inner wind direction plates 270, 270 from the left and right outer sides. The air flow between the glensy sieve 57 of the swinging main body 51 and the first conveyor 22 is evenly adjusted in the left-right direction to prevent the sorting accuracy on the left and right sides in the swinging main body 51 from being lowered. Out.
[0019]
3 and 5, the prefan 41 includes a fan shaft 242 and blade bodies 244, 244... Projecting radially from the fan shaft 242, and the prefun 41 is a side plate. 8 is arranged. That is, a substantially circular opening is formed in the side plate 8, and a pivot plate 246 having a generally "<" shape in a side view is fixed to the upper and lower central portions of the opening, and a position between the left and right pivot plates 246 is fixed. The fan shaft 242 is pivotally supported. The opening on the side of the prefun 41 is formed with suction ports 8c and 8d with the pivot plate 246 as a boundary. Further, the front and lower surfaces of the prefan 41 are covered with an arcuate guide body, and air is sucked from the suction ports 8c and 8d by the rotation of the prefan 41, and the sorting wind at the rear lower part of the Glen pan 58 is obtained. Air is sent from the inlet 51a so that the wind can be selected. Further, a suction port 245 is opened at the front portion of the prefan 41 so that hot air generated by exhaust heat from the engine E can be introduced into the prefan 41.
[0020]
As described above, the tang 35 and the pre-fan 41 are configured such that air can be sucked from the side portions, 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 that covers the suction port 8c of the side plate 8, and a second shutter 279 that covers the suction port 8a on the side of the Kara 35. A third shutter 277 for covering the suction port 8b on the side of the tang 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, a third shutter The rotary arm 285 is fixedly provided with a 277, and the horizontal shaft 286 pivotally supports the rotary arm.
[0021]
That is, the horizontal shaft 275 protrudes laterally from the support column 25, the central portion of the connecting arm 276 is pivotally supported on the horizontal shaft 275, and the first shutter 278 is fixed to the front end portion of the connecting arm 276. A second shutter 279 is fixed to the rear end portion of the connecting arm 276 at the rear, and a contact pin 287 protrudes from the lower part of the central portion of the connecting arm 276. The connecting arm 276 is biased 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 mounted. In addition, an operation wire 258 is fixed to the front portion of the connection arm 276, and the other end of the operation wire 258 is guided in the outer case 259 and connected to the operation arm 253 of the waste amount detection means 250 described above. ing.
[0022]
Further, a horizontal shaft 286 serving as a rotation center of the third shutter 277 protrudes laterally from the front upper portion of the pivoting plate 227, and one end of the rotation arm 285 is pivotally supported on the horizontal shaft 286. A third shutter 277 is fixed to the other end of 285, and is biased to a position where the opening 8b is mounted by a spring (not shown). A rod 288 is fixed to the front upper portion of the pivot arm 285, and the rod 288 is positioned above the contact pin 287 on the connecting arm 276 and on a pivot locus about the horizontal axis 275 of the contact pin 287. It has been extended.
[0023]
Therefore, when a large amount of waste is detected by the waste amount detection means 250, the chaff fins 54, 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 indicated by the two-dot chain line in FIG. 5, the first shutter 278 is rotated downward and the second shutter 279 is rotated upward to open the suction port 8c and the suction port 8a. The amount is increased and the air volume is increased so that a large amount of grains can be selected. Further, when a large amount of waste is detected by the waste amount detection means 250, the connecting arm 276 rotates, and the contact pin 287 on the connection arm 276 contacts the rod 288 at the end of the rotational arm 285. Then, the pivot arm 285 is pivoted about the horizontal axis 286, the third shutter 277 is pivoted downward, the suction ports 8a and 8c and the suction port 8b are opened, and the inflow air of the fans 41 and 35 The amount is further increased, and the specific gravity sorting ability by the swing body 51 is improved.
[0024]
On the other hand, when the amount of evacuation decreases, the operation wire 258 is returned, and the shutters 277, 278, and 279 are rotated in the direction of closing the suction ports 8a, 8b, and 8c to reduce the amount of inflow air. We try not to discharge even the grains. However, the other end of the wire 258 is connected to a lever disposed in the operating unit 19 to manually change the air volume, or the wire 258 end is connected to an actuator, and the actuator is connected to a grain amount sensor, It can also be changed according to the grain.
[0025]
【The invention's effect】
Since it comprised as mentioned above, this invention has the following effects.
According to the first aspect of the present invention, in the front and lower side of the swinging main body 51 of the sorting apparatus B, there is arranged a tang 35 for sucking air from the side and blowing the sorting wind to the swinging main body 51, and a prefan 41, A first shutter 278 that can open and close the suction port of the pre-fan 41 and a second shutter 279 that can open and close the suction port upper portion of the Kara 35 are connected by a connecting arm 276, and a third shutter 277 that opens and closes the lower port of the Kara 35 is opened. Is rotated by bringing a contact member projecting into the connecting arm 276 into contact, so that the amount of air sucked from the suction port by the rotation of the prefan and the carp is changed to the first shutter, the second shutter, and the third shutter. Since the opening and closing adjustment is performed by rotating the shutter, it becomes possible to adjust the air volume with a simple configuration, and it is not necessary to provide a complicated speed change mechanism such as changing the rotation speed of the prefan and the tang, and the configuration that reduces the cost Become.
In addition, when an increase in the amount of waste is detected, the first shutter and the second shutter are rotated by a slight amount, so that the sorting air to the swinging body is slightly increased and the amount of waste is further increased. All the first shutter, second shutter, and third shutter are rotated, the amount of air sucked into each fan is increased, and a large-capacity sorting wind according to the increase in the amount of grain is introduced into the swinging body. Therefore, it is possible to provide a sorting apparatus that maintains high sorting performance.
[0026]
As in claim 2 , a plurality of wind direction plates 270 are juxtaposed in the left-right direction on the rear air passage of the tang 35, and each wind direction plate 270 is long in the front-rear direction, and the rear portion is directed outward in plan view. In order to introduce the sorting air by Karatsu into the rocking body, the sorting air is concentrated on the central part in the left and right direction and the fine particles are conveyed to the second conveyor. The sorting air on the left and right is weakened so that no soot is mixed into the first conveyor, and the sorting air that concentrates in the center of the sorting chamber in the left-right direction is shunted in the left-right direction, Thus, the sorting air can be blown evenly, the specific gravity can be reliably selected over the entire range in the swinging body, and the sorting performance can be improved.
[Brief description of the drawings]
FIG. 1 is an overall side view of a combine.
FIG. 2 is a skeleton diagram showing a configuration of power transmission to a sorting device.
FIG. 3 is a side sectional view of a sorting device.
FIG. 4 is a side view showing a side surface of the sorting chamber.
FIG. 5 is a side view showing a front portion of a sorting chamber having a suction amount adjusting mechanism of the present invention.
FIG. 6 is a partial side view partially sectional view showing a sorting chamber having a red pepper.
FIG. 7 is a partial plan view showing an arrangement configuration of wind direction plates.
FIG. 8 is a side view showing the waste amount detection means.
[Explanation of symbols]
B Sorting device 35 Kara 41 Prefan 8a, 8b, 8c, 8d Suction port 51 Oscillating body 270 Wind direction plate 276 Connecting arm 277 Third shutter 278 First shutter 279 Second shutter 287 Contact pin

Claims (2)

  A pre-fan 41 and a tang 35 for sucking air from the side of the sorting device B and sucking air from the side and blowing the sorting wind to the swinging main body 51 are provided. The first shutter 278 capable of opening and closing the second shutter 279 and the second shutter 279 capable of opening and closing the upper suction port of the Kara 35 are connected by a connecting arm 276, and the third shutter 277 for opening and closing the lower suction port of the Kara 35 is connected to the connecting arm 276. A combine sorting device that rotates by contacting a protruding contact member. 2. The combine sorting apparatus according to claim 1, wherein a plurality of wind direction plates 270 are arranged side by side in the left-right direction on the wind path at the rear of the tang 35, and each wind direction plate 270 is long in the front-rear direction, and the rear is viewed in plan view. The combine sorter is characterized by being arranged in an inclined shape so as to face outward .

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