JP3353972B2 - Karamin structure of combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to a combine mino structure.

[0002]

2. Description of the Related Art Conventionally, in the sorting section of a combine, threshed grains are dropped on an oscillating screen, and the oscillating screen is oscillated. To separate the cereal grains and straw wastes.

[0003]

However, since the sorting wind is fed only below the oscillating sorter, the sorting efficiency is limited, so that sorting can be performed in a larger amount and more precisely, and the size of the sorting unit can be reduced. I couldn't do that.

In addition, it takes time and effort to clean the first gutter after the work, and requires an opening for cleaning and a lid for closing the opening, which complicates the structure and increases the number of parts. There is a problem of doing.

[0005]

According to the present invention, in a combine provided with an oscillating sorter and Karino and the 12th gutter, the combine from the front position to the upper position of the Karino fan body is provided.
The inner casing encloses the fan body at a predetermined distance and encloses the outer casing, which gradually expands in diameter from the obliquely rear lower position to the obliquely front upper position, to the inner casing while maintaining a predetermined distance from the inner casing. By enclosing the inner casing and the fan main body substantially along, the inner and outer casings are overlapped from the front position of the fan main body to the oblique front upper position of the fan main body, and the change of the flow path cross-sectional area is changed by the inner and outer casings. It is an object of the present invention to provide a Karamin structure of a combine, which is characterized by forming a gentle and small upwardly curved upper sorting wind passage.

The height of the turning point of the starting edge of the inner casing is set lower than the height of the center of the fan body. The sorting wind to be supplied can be adjusted, and a rotatable wind direction change plate is provided in the lower sorting wind path from Karino to the lower part of the swing sorting board, so that the sorting wind below the swing sorting board is best. Another feature is that it can be deflected in the gutter direction.

[0007]

An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a combine A having a Karamin structure according to the present invention. The combine A is provided with a threshing unit 3 and a sorting unit 4 on the upper left side of an airframe 1 equipped with a crawler 2. The mowing part 5 is attached to the upper part of the fuselage so as to be able to move up and down, and the operating part 6 is provided at the upper right front of the fuselage. A part 9 is provided.

As shown in FIG. 1, the threshing unit 3 rotatably mounts a handling cylinder 11 having an axis in the front-rear direction, and a second processing cylinder having an axis in the front-rear direction on the right rear side of the handling cylinder 11. The handle cylinder 11 and the second processing cylinder 12 are arranged on a shaft so as to be rotatable, and are arranged substantially parallel to the left-right direction in plan view.

As shown in FIG. 1, the sorting unit 4 includes an oscillating sorter 13, a karamino 14, a first gutter 15, a first conveyor 16, a second gutter 18, and a second conveyor 19. It is configured.

As shown in FIG. 1, the mowing unit 5 pivotally supports the rear end of the mowing unit frame 20 at the front of the body 1 so as to be vertically rotatable, and is vertically movable by a lifting hydraulic cylinder 21. From the front end to the rear end on the reaping unit frame 20 sequentially,
Weeding plate 22, first raising device 23, second raising device 24
, A cutting blade device 25, a scraping device 26, and a vertical transport device 27.

When the combine A is advanced in the field during the harvesting operation, the culm is sown by the weeding plate 22, and
With the raising device 23, the grain stem that has laid down in the left-right direction is raised, and the second
The grain stem that has fallen back and forth in the fore-and-aft direction is raised by the elevating device 24, and the root portion of the grain stem is cut by the cutting blade device 25 while the grain stem is scraped backward by the raking device 26, and cut by the vertical transport device 27. The grain culm is transported while changing its posture from a standing state to a recumbent state in a rearward upper direction, and the tip of the grain culm is carried into the threshing unit 3 by a lateral conveyance device 28 provided on the upper left side of the machine body 1. Threshing is performed while transporting the tip portion along the lower peripheral surface of the handling cylinder 11 of the threshing unit 3 and threshing. The straw is discharged to the outside through the straw processing unit 9 and the threshed kernel is sorted out by the sorting unit. 4. Drop it on the top of the rocking sorter 13 and sort by the rocking of the rocking sorter 13 and the sorting wind from Karamino 14.
The grain is dropped on the first gutter 15 and transported to the grain tank 8 on the first conveyor 16, and the grains dropped on the second gutter 18 are conveyed to the second conveyor
It is returned to the handling cylinder 11 of the threshing unit 3 via 19.

Prior to describing the Karamin structure according to the present invention, the outline of the sorting unit 4 will be described first.

As shown in FIGS. 1 and 2, the sorting unit 4
A feed pan 30 is arranged at the front of the swinging sorter 13, and a sorter main body 32 is connected to the rear of the feed pan 30.The sorter main body 32 has a large number of left and right sorting fins 31 in the front-rear direction. And a mesh-shaped sheave 31b disposed below the chaff sheave 31a at a predetermined interval. Of the mixture of the waste and the grains falling from the threshing unit 3 onto the oscillating sorter 13 by the sorting wind, the coarse waste is removed by the chaff sieve 31a,
The fine straw debris that has passed through 31a is removed by a Glen Sheave 31b, and only the grain is dropped into the first gutter 15 below the Glen Sheave 31b, stored in the grain tank 8 via the first conveyor 16, and then removed from the rear end of the Glen Sheave 31b. Grains mixed with straw waste that fell onto the gutter 18 are the second conveyor 19 and the second thrower (not shown).
The process returns to the threshing unit 3 through the threshing and sorting process again.

A dust suction fan 91 of the straw processing section 9 is provided above and behind the swinging sorting board 13 so that fine straw chips and dust are sucked together with the air in the sorting section 4 and discharged to the outside. I have.

In the sorting section 4, Karamin 14
As shown in FIG. 3, the outer periphery of the sirocco type fan body 33 is
4 and 37, and the sorting wind is fed between the lower surface of the chaff sheave 31a and the upper surface of the Glen sheave 31b of the swing sorter 13 and between the lower surface of the Glen sheave 31b and the upper surface of the first and second gutters 15, 18. Like that.

That is, from the front position to the upper position of the fan main body 33 (β in FIG. 3), the outer periphery of the fan main body 33 is covered with the inner casing 34 while maintaining a predetermined interval, and from the rear end edge 35 of the inner casing 34. The upper casing plate 36 extends obliquely rearward and downward, and is positioned below the feed pan 30.The outer casing 37 that gradually expands in diameter from the obliquely rear lower position of the fan main body 33 to the obliquely front upper position is removed. While enclosing the outer periphery of the inner casing 34 and the fan main body 33 substantially along the inner casing 34 while maintaining a predetermined distance from the inner casing 34, the airflow is directed downward obliquely rearward and downward from the rear edge 42 of the outer casing 37. The plate 38 is extended and connected to the front edge of the first gutter 15.

The turning point 45 at the start edge of the inner casing 34 is more γ in FIG.
(For example, 0 to 30 mm). That is, the height of the drawing point 45 is set to be lower than the height of the center O of the fan main body 33.

Accordingly, the fan body enclosing range β of the inner casing 34 becomes about 120 °, and the inner and outer casings 34, 3
7 has an overlap α within a range of about 90 ° from a substantially front position to a substantially upper position of the fan main body 33.

In the range of the overlap α, the upper sorting wind passage 40, which has a gentle change in the cross-sectional area of the flow passage between the inner surface of the outer casing 37 and the outer surface of the inner casing 34 and is curved with a small curvature, is provided. The upper sorting wind passage 40 passes through an upper sorting wind passage 41 formed by an upper surface of an upper air guide plate 36 and a lower surface of the feed pan 30, passes through an upper sorting wind outlet 39, and swings in a swing sorting machine. In addition to communicating with the space between the lower surface of the chaff sheave 31a and the upper surface of the Glen sheave 31b, a lower sorting air outlet 43 is formed between the lower surface of the upper air guide plate 36 and the upper surface of the lower air guide plate 38. 43 communicates with a space between the lower surface of the Glensheave 31b and the upper surface of the first gutter 15 via a lower selection air path 44 formed by the lower surface of the upper air guide plate 36 and the upper surface of the lower air guide plate 38.

With this configuration, as shown in FIG.
The separation wind a generated in the tangential direction on the outer periphery of the fan body 33 is guided to the inner and outer casings 34, 37 and the upper and lower wind guide plates 36, 38, divided at the above-mentioned swirl point 45, and sent to both upper and lower surfaces of the Glen sheave 31b. As a result, the sorting wind b sent to the upper surface of the Glen sheave 31b is combined with the negative pressure generated by the dust suction fan 91 of the straw processing section 9 to generate the sorting fins 31 provided in the chaff sheave 31a. The gap passes through the gap 31c from the lower side to the upper side as shown by the arrow c, and the chaff sheave 31a
By floating the selected material on the upper side, the fluidity of the straw waste and the separation of the straw waste and the grains are improved, and the dust is sucked into the dust suction fan 91 as shown by an arrow d, and is discharged from the straw discharge passage 92 to the outside. Is discharged.

On the other hand, the sorting wind e sent to the lower surface of the grain sheave 31b blows the fine straw waste passing through the grain sheave 31b toward the straw processing section 9 and drops only the fine grain to the first gutter 15. By doing so, it is possible to separate straw waste and cereal grains.

In particular, the separation wind b is supplied to the space between the lower surface of the chaff sheave 31a and the upper surface of the Glen sheave 31b, and passes through the gap 31c of the selection fin 31 upward from below as shown by the arrow c. 31a By raising the straw debris on the surface to improve the fluidity of the material to be sorted and the separation of the grain and the straw debris, the sorting efficiency is improved, and the sorting unit 4 and the Karamin
14 and can be configured compactly.

Further, since the drawing point 45 of the inner casing 34 is close to the outer periphery of the fan body 33 and the upper selection air passage 40 is open to face the above-mentioned selection wind a,
The separation of the sorting wind generated in the tangential direction of the outer periphery of the fan body 33 is smoothly performed, and the change of the flow path cross-sectional area at the overlap α portion of the sorting wind upward is gentle and the curvature is small, The wind loss is reduced, and Karino 14 can be made smaller.

As shown in FIGS. 2 and 3, a turning point 45 of the inner casing 34 is provided at a turning point 45, as shown in FIGS. The rear end of the air volume changing plate 47 is attached to the air volume changing shaft 46, and the front edge of the air volume changing plate 47 is moved from the virtual extension line of the inner casing 34 at the above-mentioned swirl point 45 to the outer casing 37.
It is possible to change the angle up to the position where it contacts the inner surface, and by this angle change, the space between the lower surface of the chaff sheave 31a and the upper surface of the Glen sheave 31b of the swing sorter 13, and the lower surface of the Glen sheave 31b and the upper surface of the first gutter 15 The ratio of the sorting wind sent to the space between them can be adjusted.

With this configuration, a sorting wind suitable for the sorting conditions such as the amount and wetness of the sorting object and the mixing ratio of the grain and the straw waste is sent to the upper and lower surfaces of the GlenSieve 31b, and the appropriate grain is fed. And straw waste can be sorted out.

In addition, by detecting the amount of straw waste, adjusting the angle of the air volume changing plate 47 according to the detected amount, and automatically controlling the ratio of the distribution of the classified air, a proper sorting is always performed. Can be done automatically.

As shown in FIG. 2 and FIG. 3, a pivot 48 is provided so as to be rotatable across the lower sorting air passage 44.
Attach the middle part of the wind direction change plate 49 to the
Is provided so that the wind direction changing plate 49 can rotate from the horizontal state to a position where the front edge of the wind direction changing plate 49 contacts the lower surface of the upper wind guide plate 36.

With this configuration, during the harvesting operation, the wind direction change plate 49 is set in a horizontal state, the sorting wind is caused to flow horizontally, and the straw chips that have passed through the Glen Sheave 31b are blown toward the straw discharge processing section 9 to remove the straw chips and grains. At the end of the work, the front edge of the wind direction changing plate 49 is rotated to a position where it contacts the lower surface of the upper baffle plate 36, and all the sorted wind below the Glen Sheave 31b is directed to the most gutter 15 direction. And the dust and the like remaining in the first gutter 15 are blown off toward the straw processing unit 9 to clean the same gutter 15.

[0030]

According to the present invention, the fan body is covered with the inner casing at a predetermined interval from the front position to the upper position of the fan body, and the fan body is obliquely rearward from the oblique rear lower position. By enclosing the inner casing and the fan main body along the inner casing while keeping the outer casing that gradually increases in diameter toward the upper position while maintaining a predetermined distance from the inner casing, the fan main body is inclined from the front position of the fan main body. The inner and outer casings are overlapped over the front and upper positions, and the inner and outer casings have a gradual change in the cross-sectional area of the flow path, and the upper sorting air passage that is curved with a small curvature is formed. It can be divided up and down smoothly and the sorting wind can be sent to both the top and bottom of the grain sieve, improving the sorting efficiency. It is not able to perform a large amount and precision sorted.

In particular, since the inner and outer casings form an upwardly-selecting air passage that has a gentle change in the cross-sectional area of the flow passage and is curved with a small curvature, the loss of the wind of the separating wind generated by the fan body is reduced. It is possible,
Even if Karin is downsized, sufficient wind power can be obtained, so Karin can be downsized.

Further, since the height of the sharp point of the starting edge of the inner casing is lower than the height of the center of the fan main body, the upper sorting wind passage can be opened directly against the sorting wind. The sorting wind generated in the tangential direction on the outer periphery of the main body can be smoothly divided. In addition, by providing an air volume change plate at the feed point and adjusting the sorting air sent above the rocking sorting machine, the mixing ratio of grain and straw waste, the amount of material to be sorted and the wetness The sorting efficiency can be improved by appropriately adjusting the wind power of the upper sorting wind to the degree of the above.

Further, a wind direction changing plate is provided in the sorting air path from Karino to the lower part of the rocking sorter so that the sorting wind below the rocking sorter can be deflected in the most gutter direction, so that when the work is completed, The lower sorting wind is blown to the first gutter, and the dust and the like remaining in the same gutter are blown off in the direction of the straw processing section, thereby cleaning the same gutter. And an opening for closing the opening is not required, so that the structure is simplified, the number of parts is reduced, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine having a Karamin structure according to the present invention.

FIG. 2 is a cross-sectional side view showing a configuration of a Karamin and rocking sorting section.

FIG. 3 is an explanatory diagram showing a flow state of a sorting wind.

[Explanation of symbols]

 A Combine α Overlap 13 Oscillating sorter 14 Karamino 15 First gutter 18 Second gutter 33 Fan body 34 Inner casing 37 Outer casing 44 Lower sorting airway 45 Draw point 47 Airflow changing plate 49 Airflow changing plate

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Jin Samuraki 1-32 Chayacho, Kita-ku, Osaka-shi, Osaka Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Kozo Kitayama 1st Chaya-cho, Kita-ku, Osaka, Osaka No. 32 Inside Yan Ma Agricultural Machinery Co., Ltd. (72) Yoshikazu Kumeyama 1-32 Chayacho, Kita-ku, Osaka-shi, Osaka Prefecture No. 32 Inside Yanmar Agricultural Machinery Co., Ltd. (72) Kazuhisa Shioya, 1 Chaya-cho, Kita-ku, Osaka, Osaka No. 32 Inside Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Tadayoshi Sato 428 Enami, Okayama City, Okayama Prefecture Inside Sairei Industry Co., Ltd. (56) References Japanese Utility Model No. 5-48640 (JP, U) Japanese Utility Model Showa 53 -163271 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01F 12/48

Claims (3)

(57) [Claims] 1. An oscillating sorter (13), Karamin (14) and 12th gutter
(15) In the combine (A) equipped with (18), the fan main body (33) is maintained at a predetermined interval by the inner casing (34) from the front position to the upper position of the fan main body (33) of the above Karin (14). The outer casing (37), whose diameter gradually increases from the obliquely rear lower position to the obliquely front upper position of the fan body (33), is separated from the inner casing (34) by a predetermined distance.
To encapsulate substantially along allowed by the inner casing (34) and a fan body (33) inside the casing (34) while retaining
The inner and outer casings (34) and (37) overlap (α) from the front position of the fan body (33) to the obliquely upper position of the fan body (33), and the inner and outer casings (34) and (37)
Therefore, the cross-sectional area of the flow path changes slowly and has a small curvature.
The Karamin structure of the combine, characterized by forming a curved upper sorting wind passage (40) . Wherein said inner casing (34) of the starting end region
The height of the point (45) is the height of the center (O) of the fan body (33).
The air flow rate changing plate (47) is provided at the same feed point (45) so as to be able to adjust the sorting wind fed above the swing sorting board (13). 2. The Karamin structure of the combine according to 1. 3. An oscillating sorter (13) provided with a rotatable wind direction changing plate (49) in a downward sorting air path (44) extending downward from the oscillating sorter (13) from Karamino (14). 2. The Karamin structure of a combine according to claim 1, wherein the lower sorting wind can be deflected in the direction of the first gutter (15).