JP4697312B2 - Combine - Google Patents

Description

  The present invention relates to a combine.

  Conventionally, a mowing device is provided on the front side of a vehicle body provided with a traveling device, a threshing device is provided on the upper side of the vehicle body, a grain storage device is provided on the right side of the threshing device, and a handling cylinder provided with a handling cylinder on the upper part of the threshing device. A dust chamber that rotates counterclockwise as viewed from the rear of the threshing device in the dust removal chamber. The rear end of the handling chamber and the front end of the dust removal treatment chamber communicate with each other through a communication port, and a swing sorting shelf is provided below the handling chamber and the dust removal treatment chamber. A combine provided with a red pepper on the side, a first transfer spiral on the rear side of the hot pepper, a second transfer spiral on the rear side of the first transfer spiral, and a dust exhaust fan above the rear of the swing sorting shelf It has been known.

  As such a combine, in Patent Document 1 below, the bottom of the rear end portion of the dust disposal chamber is opened downward, and all of the dust collected in the dust disposal chamber is swung in the threshing device. An arrangement for discharging is disclosed above.

Japanese Patent No. 2794800

  In the configuration disclosed in the above-mentioned Patent Document 1, from the rear end of the dust removal processing chamber, together with fine swarf containing grains, large swarf that has been lumped together is also discharged onto the swing sorting shelf. The For this reason, there is a problem in that the amount of the sorted matter on the swing sorting shelf increases and the grain is discharged to the outside of the threshing device together with the sawdust without sufficient sorting, resulting in a harvest loss.

  In addition, in order to solve this problem, when adopting a configuration in which the dust discharged from the dust processing chamber is directly discharged to the outside of the machine, the grain mash on the uncut land side where the dust is adjacent At the time of the harvesting operation of the culm row on the uncut ground side, the culm is harvested together with the dust, which causes an increase in threshing load and failure such as poor sorting.

  In addition, the layer of the dust discharged from the dust disposal chamber and deposited on the field scene was not uniform in the left-right direction, and the amount of sawdust in the next cultivation work was not uniform and transplanted There is a problem that the growth state of the seedlings is difficult to align.

The present invention has taken the following technical means in order to solve the above-described problems.
That is, the invention according to claim 1 is provided with a reaping device (3) on the front side of the vehicle body (1) provided with the traveling device (2), and a threshing device (4) on the upper side of the vehicle body (1). A grain storage device (G) is provided on the right side of the device (4), a handling chamber (8) having a handling cylinder (7) is provided on the upper part of the threshing device (4), and a left side of the handling chamber (8). Is provided with a feed chain (11), a dust removal chamber (18) is provided on the right side of the handling chamber (8), and the dust removal chamber (18) is counterclockwise as viewed from the rear of the threshing device (4). And a rear end portion of the handling chamber (8) and a front end portion of the dust disposal chamber (18) are communicated with each other through a communication port (R). ) And a dust sorting chamber (18), a swing sorting shelf (40) is provided, and a Kara (41) is provided below the front of the swing sorting shelf (40), and the rear side of the Kara (41). No. 1 transfer A swirl (42), a second transfer helix (43) is provided on the rear side of the first transfer helix (42), a dust exhaust fan (30) is provided above the swing sorting shelf (40), A first dust exhaust port (21) for discharging the dust to the rear upper part of the swing sorting shelf (40) is provided on the left side of the rear end of the dust exhaust processing chamber (18), and the first dust exhaust port (21). Provided with a first discharge guide plate (29) provided with a first inclined surface (29a) for guiding the dust discharged from the first dust outlet (21) to flow downward to the right and dropping it onto the field scene. In addition, a second dust exhaust port (23) for exhausting dust to the rear of the threshing device (4) is provided on the right side of the rear end of the dust exhaust processing chamber (18), and the second dust exhaust port (23) is provided. , The second inclined surface (24a) for guiding the dust discharged from the second dust outlet (23) to flow downward to the right and dropping it onto the field scene, and the second dust outlet (23). Excretion It is set as the combine characterized by providing the 2nd discharge | emission guide plate (24) provided with the 3rd inclined surface (24b) which flows down and directs a thing toward the back of a threshing apparatus (4), and falls to a field scene. .

  With this configuration, among the processed materials that are handed over from the inside of the handling chamber (8) through the communication port (R) to the dust disposal chamber (18) and processed in the dust disposal chamber (18), The fine dust discharged from the first dust outlet (21) provided on the left side of the rear end of the dust processing chamber (18) is rotated by the rotation of the dust processing cylinder (17). To the rear upper part. Then, the dust particles flow down on the first inclined surface (29a) of the first discharge guide plate (29) to the right rear side, and fall to the field scene on the side where the grain husk has already been cut.

  In addition, a large waste dust or other dusty substance that has become agglomerated rotates in a state of adhering to the dust removal treatment cylinder (17), and the second waste provided at the right side of the rear end of the dust removal treatment chamber (18). It is discharged to the rear of the threshing device (4) from the dust hole (23). Then, the dusts flow down on the second inclined surface (24a) and the third inclined surface (24b) of the second discharge guide plate (24), and the field scene immediately behind the threshing device (4) and already It falls to the field scene on the side where the cereals are harvested.

  The invention according to claim 2 forms a gap (K) between the first discharge guide plate (29) and the second discharge guide plate (24) in the rear view of the threshing device (4), In the gap (K), the dust discharged from the first dust outlet (23) is transferred onto the swing sorting shelf (40) and the second discharge guide plate (24). The combine according to claim 1, wherein a plurality of guide rods (28 a, 28 b) that are separated from the dust discharged are disposed.

  With this configuration, the dust discharged from the first dust outlet (23) is sorted on the plurality of guide rods (28a, 28b), and the grains mainly flow down onto the swing sorting shelf (40). Collected. Further, dust and other dusts that do not fall from the guide rod (28a, 28b) are taken over from the guide rod (28a, 28b) to the second discharge guide plate (24), and the second discharge guide plate. It flows down on the third inclined surface (24b) or the second inclined surface (24a) of (24) and falls to the field scene.

  According to the first aspect of the present invention, the dust discharged from the first dust outlet (21) provided on the left side of the rear end of the dust disposal chamber (18), and the rear of the dust disposal chamber (18). The dust discharged from the second dust outlet (23) provided on the right end of the end is dropped to the field scene just behind the threshing device (4) and the field scene on the side where the grain husk has already been cut. it can. As a result, the swarf on the swaying sorting shelf (40) is reduced, and the swaying sorting on the swaying sorting shelf (40) can be efficiently performed, and the grains in the selected matter are discharged together with the swarf to the outside of the machine. Harvesting loss can be reduced, and the accuracy and efficiency of the threshing sorting operation can be improved.

  Further, since the dust discharged from the dust processing chamber (18) is dropped to the farm scene directly behind or the field scene on which the grain has already been harvested, the dust does not easily fall on the grain that has not been harvested yet. The efficiency of the harvesting and threshing work by the combine by reducing the refeeding of the discharged swarf to the threshing device (4) and reducing the occurrence of threshing load and the occurrence of poor sorting during the harvesting work of the adjacent culm row Can be improved. In addition, since dust collected from the dust disposal chamber (18) accumulates in a state of being diffused from the farm scene immediately behind the threshing device (4) to the farm scene on the side where the cereals have already been harvested, In the next cultivation work, the amount of sawdust can be made uniform, and the growth state of the transplanted seedlings can be easily aligned.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the grains mixed in the dust discharged from the rear end of the dust processing chamber (18) are subjected to the swing sorting shelf. (40) It can be recovered by flowing down, and the harvest loss can be further reduced.

Combine left side view Combine right side view Top view of the combine Side view showing broken threshing device Plan view showing the threshing device in a broken state Rear view of combine showing broken threshing device Rear view around the dust outlet Side view for explanation of processing cylinder and dust disposal chamber Side view for explaining the dust treatment chamber

Hereinafter, an embodiment for carrying out the present invention will be specifically described with reference to the drawings.
First, the structure of the combine body will be described with reference to FIGS.
A mowing device 3 that can be moved up and down is provided on the front side of a vehicle body 1 having a traveling device 2 having a crawler, a threshing device 4 is mounted on the upper side of the vehicle body 1, and a hopper type grain is placed on the right side of the threshing device 4. A grain storage device G is provided, and a waste cutter C is provided on the rear side of the threshing device 4.

  The reaping device 3 includes a weed body 3a for weeding the cereal, a pulling device 3b for causing the weed cereal, a scraping device (not shown) for scraping the induced culm, and a scraping A cutting blade device 3c that cuts away the harvested corn straw and a transport device 3d that conveys the harvested corn straw rearward and upward are provided. These devices are integrally supported by a support frame 3e that is inclined forwardly and is configured to rotate up and down around a horizontal axis provided at a rear upper end portion of the support frame 3e.

  Further, on the rear side of the reaping device 3, a control section P including a cockpit 5, a main transmission lever L, an auxiliary transmission lever M, a throttle lever N, and a steering lever O is provided. An engine E is mounted below the cockpit 5. The outside air for combustion of the engine E is sucked from the upstream air cleaner E1 protruding upward from the fuselage through the downstream air cleaner E2.

  The grain storage device G is a hopper provided with a triple grain discharge shooter G1, and below the grain storage device G on the vehicle body 1 is provided a carrier G2 on which a straw bag is placed. A fuel tank G3 is mounted on the rear portion of the carrier G2, and an auxiliary carrier G4 that can be opened and closed about an axis in the longitudinal direction of the machine body is provided outside the carrier G2. Further, a backrest G6 is attached to a support frame G5 that supports the grain storage device G so as to be rotatable up and down. This backrest G6 is for supporting the body of the auxiliary worker who has boarded on the auxiliary carrier G4.

Next, the configuration of the threshing apparatus 4 will be described based on FIGS. 4 and 5.
A handling cylinder 7 having a large number of teeth 7a is rotatably supported inside a handling chamber 8 above the threshing device 4, and a receiving net 9 is stretched along the lower half of the handling cylinder 7. A handle cylinder cover 10 covers an upper portion of the handling chamber 8 and is attached so as to be able to swing open and close around an axis parallel to the axis direction of the handle cylinder 7.

  A feed chain 11 for sandwiching and conveying the cereal and a sandwiching rail 11a facing the upper side are provided on the handling port side of the handling chamber 8. The sandwiching rail 11a is mounted on the side of the barrel cover 10 and swings with the barrel cover 10 to open and close. A dust discharge port 12 is provided on the terminal side of the handling chamber 8 for dropping a waste treatment product including a large amount of sawdust and untreated material downward.

  A second processing chamber 15 is provided on one side of the handling chamber 8 opposite to the side where the feed chain 11 is installed, and a continuous spiral 14 a and a spring plate 14 b are provided in the second processing chamber 15. The second processing cylinder 14 is supported so as to be rotatable counterclockwise when viewed from the back. A receiving plate 14 c is provided along the outer periphery of the lower portion of the spiral 14 a of the second processing cylinder 14. The receiving plate 14 may be an iron plate having a large number of filtration holes. Alternatively, a continuous spiral 14a may be provided at the rear portion of the second processing cylinder 14, and a large number of plate bodies may be provided at intervals on the spiral trajectory at the front portion of the second processing cylinder 14.

  In addition, a dust treatment chamber 18 is provided behind the second treatment chamber 15, and a dust treatment cylinder 17 that rotates in the same direction with the same axis as the second treatment cylinder 14 is rotated in the dust treatment chamber 18. Support freely. On the outer periphery of the dust removal processing cylinder 17, a spiral processing tooth 16 including a continuous spiral body and a processing tooth attached to the outer peripheral edge of the spiral body is attached. Then, as shown in FIG. 9, a large number of narrow plates 27 a arranged in the direction along the rotational axis of the dust disposal cylinder 17, and the dust disposal cylinder 17 at a position surrounding the left half of the dust disposal cylinder 17. A dust receiving net 27 that is framed in a lattice shape is provided from a large number of round bars 27b arranged along the rotation direction. A large number of rectangular gaps are formed between the large number of plates 27a and the round bars 27b. This gap is a filtration hole for filtering and dropping the dust disposal product in the dust disposal chamber 18.

  The lateral side portion of the rear end portion of the handling chamber 8 that is substantially in the same position in the front-rear direction as the dust discharge port 12 and the lateral side portion of the front end portion of the dust removal treatment chamber 18 are communicated with each other through the communication port R. At this communication port R, a spiral intake blade 19 fixed to the start end portion of the dust removal treatment cylinder 17 is faced, and the intake blade 19 allows the treatment chamber 8 to enter the dust treatment chamber 18. A configuration is adopted in which dust is taken in smoothly.

A swing sorting shelf 40 is provided below the handling chamber 8 and the dust disposal chamber 17.
The swing sorting shelf 40 receives the processed product after the threshing process from the handling chamber 8 and the dust processed product from the dust processing chamber 17 and screens them while swinging and transferring them. A transfer shelf 44, a chaff sheave 45, and a stroll rack 46 are arranged in this order from the side, and a glenshave 47 is provided below the chaff sheave 45. By the combined action of the sorting wind and the rocking by the tang 41 and the dust collecting fan 30, the processed material leaked from the handling chamber 8 and the dust collecting processing chamber 17 is received and screened while being rocked and transferred.

  In the lower part of the swing sorting shelf 40, a red pepper 41, a first transfer spiral 42, and a second transfer spiral 43 are provided in order from the upper side in the sorting direction. A flow fan type dust exhaust fan 30 is provided. Grains collected by the first transfer spiral 42 are accommodated in the grain storage device G through the first cerealing device 42a. Moreover, the 2nd thing collect | recovered with the 2nd transfer spiral 43 returns to the rear-end part of the 2nd process chamber 15 via the 2nd cerealing apparatus 43a. In the second processing chamber 15, the second item is transported forward while being processed by the second processing cylinder 14, and the transfer shelf 44 of the swing sorting shelf 40 from the drop port 15 a provided at the front end of the second processing chamber 15. It falls down and is sorted.

  As shown in FIGS. 1 to 3, a threshing device is provided on a rotating shaft 74 on the outside of an outside air inlet 72 provided on the left and right sides of the Kara 41 to adjust the amount of outside air sucked from the outside air inlet 72. 4 is attached to the machine frame side so that it can rotate freely. When the shielding plate 73 overlaps the outside air inlet 72, the amount of outside air sucked from the outside air inlet 72 is reduced, and the amount of the selection air blown from the tang 41 is reduced. One end of a wire 75 is attached to the opposite side of the rotating shaft 74 in the shielding plate 73, and the other end of the wire 75 is attached to the end of an arm 76 that rotates up and down integrally with the support frame 3 e of the cutting device 3. Install. With this configuration, when the harvesting device 3 is raised when the side of the field is cut and the combine is turned, the amount of the sorting wind blown from the tang 41 decreases, and the waste on the swing sorting shelf 40 It can prevent scattering to the exterior of the threshing apparatus 4 with a grain.

  As shown in FIGS. 4 to 7, on the left side of the rear end of the dust processing chamber 17, the dust that has been sent to the rear end of the dust processing chamber 17 is placed at the rear of the swing sorting shelf 40 described later. The first dust discharge port 21 for discharging upward is opened. The first dust outlet 21 is formed by opening the rear side of the rear end of the dust receiving net 27.

  In addition, a discharge blade 20 is provided at the end of the dust removal treatment cylinder 17. In this embodiment, one discharge blade 20 is provided, but a plurality of discharge blades 20 may be provided on the outer periphery of the dust removal processing cylinder 17. As a result, fine dust such as swarf containing grains among the dust that has been sent to the first dust outlet 21 by rotating counterclockwise in the rear view of the dust disposal cylinder 17. The discharge blade 20 discharges the upper part of the swing sorting shelf 40 upward.

  Further, the first dust outlet 21 is provided with a first discharge surface provided with a first inclined surface 29a that guides the dust discharged from the first dust outlet 21 downward to the right and drops it to the field scene. A guide plate 29 is provided. The first discharge guide plate 29 is provided with a base fixed to a side plate 31 of a dust exhaust fan 30 disposed above the terminal end side of the swing sorting shelf 40 and projecting toward the first dust discharge port 21 side.

  The first inclined surface 29a of the first discharge guide plate 29 is three-dimensionally inclined in the rearward and downward direction. As a result, most of the dust discharged from the first dust outlet 21 and discharged by the discharge vanes 20 is directly discharged outside the apparatus without dropping onto the swing sorting shelf 40.

  On the other hand, as shown in FIG. 8, the outer wall (right side plate) 22 on the right side of the rear end of the dust disposal chamber 18 has a large amount of soot or lump that has been sent to the end of the dust disposal chamber 18. Etc. are provided to the rear of the threshing device 4.

The second dust discharge port 23 is provided with a second discharge guide plate 24. The second discharge guide plate 24 is formed with a second inclined surface 24a and a third inclined surface 24b having different inclination directions.
As shown in FIG. 4, the second discharge guide plate 24 is disposed at a position lower than the first discharge guide plate 29 in a side view of the threshing device 4.

  As shown in FIG. 7, the second inclined surface 24 a is a part of the second discharge guide plate 24 formed by bending the plate material stepwise, and the vertical surface portion of the second inclined surface 24 a is biased to the right side as the rear portion. Formed on the guide surface. Further, the bottom surface portion of the second inclined surface 24a is refracted to change the inclined posture in a stepwise manner in order to have continuity with a third inclined surface 24b described later.

The third inclined surface 24b is inclined only in the rearwardly descending direction facing directly behind the combine body, and is not inclined in the left-right direction.
As a result, almost all of the dust discharged around the rotation of the dust exhausting cylinder 17 and discharged from the second dust outlet 23 is directly dropped on the already-cut ground without dropping onto the swing sorting shelf 40. Drop to the side farm scene. That is, the second inclined surface 24a of the discharge guide plate 24 guides the discharged dust to the right rear and drops it to the farm scene. Further, the third inclined surface 24b of the discharge guide plate 24 directs the dust to the rear side in the axial direction of the dust processing cylinder 17, that is, directly behind the threshing device 4 (directly behind the combine body). Guide down the flow and let it fall to the farm scene.

  In addition, the start end position of the second inclined surface 24 a of the discharge guide plate 24 is set to a position substantially the same as the end position of the dust collection screen 27 in the front-rear direction. Accordingly, the dust discharged after being finely crushed by the spiral processing teeth 16 of the dust processing cylinder 17 and the dust receiving net 27 is further diffused to the right side by the second inclined surface 24a of the discharge guide plate 24. Can be discharged.

  As shown in FIG. 8, a part of the upper portion of the outer wall 22 bulges upward in the dust removal treatment chamber 18 to form a bulge space S that allows a predetermined amount of processed material to enter. . And several cutting blades 26 are provided in this bulging space S, and it is set as the structure which cut | disconnects and separates a slag and the lump which became the lump shape. Thereby, the cutting blade 26 can be made to act on a dust removal processed material, and it can cut | disconnect reliably.

  As shown in FIGS. 4 to 7, two round bar-shaped guide rods 28 a and 28 b are disposed at the rear end portion of the dust receiving net 27 to change the phase in the circumferential direction of the dust receiving net 27, and the threshing device 4. In the rear view, the gap K between the first discharge guide plate 29 and the second discharge guide plate 24 is arranged at a predetermined interval.

  The two guide rods 28a and 28b are attached to the rear end portion of the dust collection receiving net 27, respectively, and are directed toward the rotation direction of the dust collection cylinder 17, and are side surfaces with the axis of the dust collection cylinder 17 as a reference. It is arranged obliquely in view and plan view. In other words, the two guide rods 28a and 28b are inclined so as to be rearwardly lowered and biased toward the right side (the already cut ground side) toward the rear side. Moreover, as shown in FIG. 4, in the side view of the threshing device 4, the two guide rods 28a and 28b are different in height from each other, and the guide rod 28b arranged at a low position is the first discharge guide. It is disposed at a height between the plate 29 and the second discharge guide plate 24. Further, the guide rod 28b arranged at the low position in a side view of the threshing device 4 is set to an inclined posture that is looser than the first discharge guide plate 29 and the second discharge guide plate 24. In addition, the guide rod 28a arranged at the high position is set to have substantially the same height and the same inclined posture as the first discharge guide plate 29 in a side view of the threshing device 4. Further, the inner edge of the first discharge guide plate 29 is provided substantially in parallel along the guide rod 28a arranged at a higher position of the two guide rods 28a and 28b. Further, the free end portion (rear end portion) of the guide rod 28b is disposed above the third inclined surface 24b. Further, the free end portions of the two guide rods 28 a and 28 b extend rearward from the rear end portion of the swing sorting shelf 40. The two guide rods 28a and 28b are configured to be integrated with the dust receiving net 27 and can be extracted rearward from the threshing device 4, and the dust receiving net 27 can be easily cleaned and replaced. Can do.

  As a result, the dust discharged from the first dust outlet 21 is selected at the interval between the two guide rods 28, and the fine dust containing the grain is separated from the swing sorting shelf 40. It is allowed to flow down on the stroller 46, restricts the leakage of large dusts such as sawdust, and takes over the right second discharge guide plate 24 to guide it down to the field scene.

Further, as shown in FIG. 7, the lower end portion of the second discharge guide plate 24 on the second dust outlet 23 side and the side seal 32 of the swing sorting shelf 40 are set at substantially the same height. Thereby, infiltration of the sawdust into the sorting chamber can be prevented, and the third inclined surface of the second discharge guide plate 24 is maintained while maintaining the sealing performance between the side surface of the swing sorting shelf 40 and the wall surface of the threshing device 4. 24b can be made into a steeply inclined posture, and the flow-down guide of the dust can be smoothly carried out.

  First, the grain culm is harvested by the harvesting device 3 at the front part of the machine body, conveyed rearward and upward, inherited by the feed chain 11, and supplied to the threshing device 4. As for this cereal, while the stock is held by the feed chain 11 and conveyed, the tip portion is supplied into the handling chamber 8 and is subjected to the threshing action by the rotating handling cylinder 7. The processed threshing product thus processed rotates in the handling chamber 8 in a state where it is caught by the tooth handling 7a of the rotating handling cylinder 7, and is further subjected to a threshing treatment action. It leaks from the filtration hole) onto the swing sorting shelf 40 and receives the swing sorting action.

  At this time, the processed product that has been threshed on the front end side of the handling chamber 8 falls on the transfer shelf 44 and is oscillated and transferred rearward, so that a plurality of sheave plates constituting the chaff sheave 45 are formed. The processed material that does not fall from the sorting interval between them reaches the chaff sheave 45. In addition, the dust disposal product that has reached the rear end of the handling chamber 8 is sent into the dust disposal chamber 18 via the communication port R and the one that falls on the lower chaff sheave 45 from the dust ejection port 12. It is divided into those to be processed by the dust removal processing cylinder 17. Then, the dust disposal product that has fallen on the chaff sheave 45 is subjected to a wind-selecting action while being filtered at the chaff sheave 45 separation interval.

  What leaks from the chaff sheave 45 falls onto the grain sieve 47 and is subjected to a wind-selective action while being screened and sorted by the grain sieve 47. At this time, the tangled rice 41 blows up the raised sorting wind into the sorting chamber, and the sorted wind is sucked out of the threshing device 4 by the dust exhaust fan 30.

  As a result, the processed product is sorted while receiving the swing sorting action and the wind sorting action by the sorting wind, and sorted into the first thing (fine grain), the second thing, and the dust, and the first thing. After being screened and sorted by the grain 47, it falls and collected in the receptacle of the first transfer helix 42, is cerealed by the first cerealing device 42a, and is filled in the grain storage device G. The second product is cerealed from the second transfer spiral 43 by the second cerealing device 43a, is reduced into the second processing chamber 15, and is reprocessed. Fine dust is sucked by the dust fan 30 and discharged to the outside of the threshing device 4, and large dust that does not leak from the straw rack 46 is threshed from the rear end of the swing sorting shelf 40. It is discharged to the outside of the device 4.

  On the other hand, the dust disposal product taken into the dust disposal chamber 18 from the rear end of the handling chamber 8 through the communication port R is finely crushed by the spiral processing teeth 16 on the outer periphery of the dust disposal cylinder 17 while being transferred rearward. Then, it falls from the filtration hole of the dust collection screen 27 and is reduced onto the chaff sheave 45. In addition, the processed dust that does not fall from the filtering hole of the dust receiving mesh 27 is processed by the spiral processing teeth 16 and the cutting blade 26 while being sent back through the dust processing chamber 18 by the spiral processing teeth 16. The At the end of the dust collection chamber 18, relatively fine dust is discharged from the first dust outlet 21 to the rear upper part of the swing sorting shelf 40 by the discharge blade 20 at the end of the dust collection cylinder 17. And this dust waste material flows down on the 1st inclined surface 29a of the 1st discharge | release guide plate 29, and falls to the field scene of the side which has already harvested the kernel.

  At this time, the dust discharged from the first dust outlet 23 is selected on the two guide rods 28a and 28b, and the grain is mainly separated from the space between the two guide rods 28a and 28b. From the gap between the guide rod 28a and the first discharge guide plate 29 and the gap between the guide rod 28b and the second discharge guide plate 24, it leaks onto the swing sorting shelf 40 and is collected. In addition, dust and other wastes that do not fall from the two guide rods 28a and 28b are taken over from the guide rods 28a and 28b to the second discharge guide plate 24. It flows down on the 3rd inclined surface 24b or the 2nd inclined surface 24a, and falls to a field scene.

  In addition, lump dust such as large swarf scraped around the dust removal treatment cylinder 17 threshing device 4 from the second dust discharge port 23 provided on the right side of the rear end of the dust removal treatment chamber 18. It is discharged to the rear. And this dust waste material flows down on the 2nd inclined surface 24a and the 3rd inclined surface 24b of the 2nd discharge | release guide plate 24, and falls to the cutting field side of the threshing apparatus 4, and a farm scene just behind.

  As a result, the swarf on the swaying sorting shelf 40 is reduced, the swaying sorting on the swaying sorting shelf 40 can be performed efficiently, and the grains in the selected product are discharged together with the swarf to the outside of the machine. And the accuracy and efficiency of the threshing sorting operation can be improved.

  In addition, since the dust discharged from the dust processing chamber 18 is dropped to the farm scene just behind the threshing device 4 or the farm scene on the already-cut ground side, it is difficult for dust dump to be applied to the cereals on the uncut ground side. To suppress the resupply of the discharged swarf to the threshing device 4 during the harvesting operation of the culm row to reduce, reduce the occurrence of threshing load and occurrence of poor sorting, and improve the efficiency of the harvesting and threshing operation by the combine Can do. In addition, since dust collected from the dust processing chamber 18 is accumulated in a state of being diffused from the farm scene just behind the threshing device 4 to the farm scene on the cut ground side, in the next cultivation work, The amount of penetration can be made uniform, and the growth state of the transplanted seedlings can be easily made uniform.

In addition, the grains mixed in the dust discharged from the rear end of the dust processing chamber 18 can be collected by flowing down onto the swing sorting shelf 40, and the harvest loss can be further reduced. .
Further, as shown in FIGS. 4 and 6, a third discharge guide plate 61 inclined downward is attached to the rear end portion of the swing sorting shelf 40. The third discharge guide plate 61 has substantially the same lateral width as the entire width of the swing sorting shelf 40, swings integrally with the swing sorting shelf 40, and is discharged from the rear end of the swing sorting shelf 40. This guides the discharged dust flowing down to the farm scene. Note that the free ends of the guide rods 28a and 28b are arranged above the third discharge guide plate 61 so as to face them.

  On the inclined surface of the third discharge guide plate 61, a flow guide plate 62 is installed upright. The flow guide plate 62 is biased toward the right side as viewed from the rear, and is disposed obliquely with respect to the axial direction of the handling cylinder 7.

  Further, as shown in FIGS. 6 and 7, a dust exhaust guide plate 63 is provided on the lower side of the dust exhaust fan outlet of the dust exhaust fan 30 so as to be inclined downwardly. On the inclined surface, the wind direction guide plate 64 is arranged obliquely with reference to the direction of dust exhaust air blowing so that the rear part is biased to the right side in the rear view. A flow guide plate 62 is disposed below the rear side of the wind direction guide plate 64, and the flow guide plate 62 is disposed on an extension line of the wind direction guide plate 64. Thereby, the dust exhausted air guided by the wind direction guide plate 64 hits the flow down guide plate 62, the dust discharged from the rear end of the swing sorting shelf 40, and the first discharge guide plate from the first dust discharge port 21. The field on the already-cut ground while the dust discharged through the first inclined surface 29a of 29 and the dust discharged by the dust fan 30 are merged on the third discharge guide plate 61. It can be diffused to the surface and discharged.

  Further, the flow guide plate 62 is disposed on the side closer to the handling cylinder 7 with respect to the first discharge guide plate 29 (left side in the rear view). As a result, the dust discharged from the first dust outlet 21 through the first inclined surface 29a of the first discharge guide plate 29 is guided to the cut area by the flow-down guide plate 62 and diffused into the field scene. Can be discharged.

  A wind direction plate 65 is provided at the front end portion of the stroller rack 46 of the swing sorting shelf 40 to guide the sorting wind from the tang 41 toward the suction port side of the dust exhaust fan 30. The lower end of the suction port of the dust exhaust fan 30 is positioned on the extended line of the wind direction plate 65. This assists in blowing up the sorting wind, promotes the dispersion of the processed material on the chaff sheave 45 and the fall of the grain after filtration, and reduces the harvest loss in which the grain is discharged together with the sawdust. Further, in this case, if the second tang 66 is provided between the first transfer spiral 42 and the second transfer spiral 43, the sorting air volume below the Strollac 46 can be properly maintained, and the sorting on the Strollack 46 is performed. Efficiency can be increased.

DESCRIPTION OF SYMBOLS 1 Car body 2 Traveling device 3 Harvesting device 4 Threshing device 7 Handling cylinder 8 Handling chamber 11 Feed chain 17 Dust removal processing cylinder 18 Dust processing chamber 21 First dust outlet 23 Second dust outlet 24 Second discharge guide plate 24a First 2 inclined surface 24b 3rd inclined surface 28a guide rod 28b guide rod 29 1st discharge guide plate 29a 1st inclined surface 30 dust exhaust fan 40 rocking sorting shelf 41 Karatsu 42 first transfer spiral 43 second transfer spiral G grain storage Device R Communication port

Claims (2)

  A reaping device (3) is provided on the front side of the vehicle body (1) provided with the traveling device (2), a threshing device (4) is provided on the upper side of the vehicle body (1), and a grain is stored on the right side of the threshing device (4). A device (G) is provided, a handling chamber (8) provided with a handling cylinder (7) is provided at the top of the threshing device (4), and a feed chain (11) is provided on the left side of the handling chamber (8). A dust removal treatment chamber (18) is provided on the right side of the chamber (8), and the dust removal treatment cylinder (17) rotates counterclockwise in the dust removal treatment chamber (18) as viewed from the rear of the threshing device (4). And the rear end of the handling chamber (8) and the front end of the dust disposal chamber (18) are communicated with each other through a communication port (R), and the handling chamber (8) and the dust disposal chamber (18) are connected to each other. A swing sorting shelf (40) is provided below, a Kara (41) is provided below the front of the swing sorting shelf (40), and a No. 1 transfer spiral (42) is provided on the rear side of the Kara (41). , The first transfer screw (42) A second transfer spiral (43) is provided on the rear side, a dust exhaust fan (30) is provided above the rear part of the swing sorting shelf (40), and the left side of the rear end of the dust processing chamber (18). Is provided with a first dust outlet (21) for discharging the dust to the rear upper part of the swing sorting shelf (40), and the first dust outlet (21) is discharged from the first dust outlet (21). Provided with a first discharge guide plate (29) having a first inclined surface (29a) for guiding the discharged waste material to flow backward to the right and dropping it to the farm scene, and the rear end of the dust disposal chamber (18) A second dust discharge port (23) that discharges dust to the rear of the threshing device (4) is provided on the right side, and the second dust discharge port (23) is discharged from the second dust discharge port (23). The second inclined surface (24a) that guides the discharged dust to flow backward to the right and drops it to the farm scene, and the discharged dust discharged from the second dust outlet (23) are directly behind the threshing device (4). For Combine, characterized in that a third inclined surface for dropping into the field plane (24b) a second discharge guide plate and a (24) flows down guided Te.   In the rear view of the threshing device (4), a gap (K) is formed between the first discharge guide plate (29) and the second discharge guide plate (24), and the gap (K) The dust discharged from the first dust outlet (23) is separated into dust discharged to the swing sorting shelf (40) and dust transferred to the second discharge guide plate (24). The combine according to claim 1, wherein a plurality of guide rods (28a, 28b) are arranged.

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