JPH08336328A - Shaking grader of combine - Google Patents

Abstract

PURPOSE: To provide the shaking grader of a combine, whose chaff sieve contains many assembling chaff fins each of which is formed by connecting plural divided fin parts to each other in the longitudinal direction, capable of being easily subjected to cleaning and maintaining works, and useful on the harvest of rice, buckwheat, etc. CONSTITUTION: Many chaff fins 78 are horizontally placed between both the lateral frame sides of a shaking grader board to form a chaff sieve, and the chaff sieve contains one or more assembling chaff fins 78 each of which is formed by connecting two or more divided fin parts 78a, 78b to each other in the longitudinal direction. Vis holes 81, 82 for vises 80 are formed in a fixing plate 79 and at the inside ends of the divided fins 78a, 78b, and a groove 82 for fitting onto the thick part 55b of each divided fin part 78a, 78b is disposed on the connection surface of each divided fin part 78a, 78b of the fixing plate 79 over the whole longitudinal width. Nuts 84 for threadedly attaching the vises 80 thereto are preferably attached to the back sides of the totally four vises 82 in the fixing plate 79.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine swing selection apparatus for swing selection of grains such as rice, wheat and soybeans which have been threshed in a threshing section.

[0002]

2. Description of the Related Art A chaff sheave of an oscillating sorter is formed by a large number of chaff fins which are horizontally mounted between left and right side frames. In this case, each chaff fin is detachably fitted to and held by a fin receiver that is swingably attached to the left and right side frames.

[0003]

When the swing sorting board is assembled, the gutter structure or the like on the lower side of the swing sorting board is covered with a lid from above. For example, the second gutter at the lower rear of the swing sorting board is clogged. If there is stagnation on the second or second-rate grain board, even if you try to remove clogging or stagnant by inserting your hands from above the rocking sorter to eliminate it, the rocking sorter is assembled. The chaff fins, which cannot be detached if attached, cannot be performed because it interferes. Therefore, there is no choice but to pull out the entire swing sorting board rearward from the threshing machine frame, which complicates extremely troublesome work.

Therefore, according to the present invention, with the swing sorting board assembled, the operator can put his or her hand from the upper side to the lower side to facilitate cleaning and maintenance work on the bottom of the swing sorting board or below the swing sorting board. The purpose is to be able to do.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, an oscillating sorting apparatus of the present invention has a plurality of chaff fins forming chaff sheaves of an oscillating sorting board with two or more divided fins in the longitudinal direction. It includes one or more assembly-type chaff fins that are connected to each other to form one chaff fin.

[0006]

[Operation] Therefore, by disassembling the assembly-type chaff fin, a gap is created between the assembly-type chaff fin and the integral chaff fin in front of and behind the assembly-type chaff fin. By inserting a hand, cleaning and maintenance work of the lower side of the rocking sorter can be easily performed with the swing sorter attached.

All the chaff fins forming the chaff sheave may be assembled chaff fins.
In consideration of strength, cost, assembly, etc., it is preferable to assemble one sheet or two or three sheets continuously in a necessary place.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is an explanatory view of chaff fins of an oscillating sorting board, FIG. 2 is a side view of the combine as a whole, and FIG. 3 is a plan view of the combine, where (1) is a traveling crawler (2) and a track frame (3).
Equipped with a machine, (4) is equipped with an axial-flow screw type handling cylinder (5), a selection mechanism (6), etc., and is mounted on the machine stand (1) for a threshing section, and (7) is a fried grain A grain tank for storing the grains of the threshing section (4) taken out through the tube (8),
(9) is a mowing section which is installed in the lower front of the threshing section (4) so as to be able to move up and down through a hydraulic cylinder (10), (11)
Is a driving cabin provided with a driver's seat (12) and a driving operation unit (13) and arranged in front of the grain tank (7),
(14) is an engine part provided behind the grain tank (7) and internally equipped with an engine (15), and (16) is an upper grain carry-out auger for taking out grains in the grain tank (7). .

The mowing section (9) is connected to the grain mowing header (17) for receiving the uncut grain culm and the rear center of the header (17) so that the mowing grain culm is threshing section (4). And a reel house (19) for scraping uncut grain, a reciprocating drive type cutting blade (20), and an auger (21) for scraping grain culm, which are configured by a feeder house (18) for feeding to the grain header. In preparation for (17), the header (1
The cut culm to be taken into 7) is sent to the threshing unit (4) through the supply chain conveyor (22) provided in the feeder house (18) to perform the threshing process.

A second reducing cylinder (23) is provided on the outer right side of the threshing section (4) so as to return the second processed product to the sorting mechanism (6) for re-sorting. .

Further, as shown in FIG. 4, the screw type handling cylinder (5) comprises a cylindrical body (24) having a length substantially equal to the longitudinal length of the threshing section (4) and an outer periphery of the body (24). The screw-shaped handling cylinder (5) is provided with a spiral-shaped screw blade (25) wound around the body and erected in a radial manner, and a dust projection (26) provided on the outer periphery of the rear end of the body (24). ) Is axially supported in the longitudinal direction of the machine body, and the front end of the handling cylinder (5) is provided so as to face the front inlet of the handling room (27) communicating with the feeder house (18). ) The rear end of the handling cylinder (5) faces the rear dust outlet (29), and the net (3) is provided below the handling barrel (5) excluding the dust outlet (29).
0) is stretched and all the cut grain culms are added from the feeder house (18) to thresh.

Further, front and rear swing sorting discs (31) (32) constituting the sorting mechanism (6) are provided, and the swing sorting discs (33) (34) and the arm (35) are provided in the front-back direction. A feed pan (36) which is driven to swing the front and rear sorting discs (31) (32) and is positioned below the front part of the handling cylinder (5), and a first chaff sheave (37) whose grain leakage amount is adjustable. , A gren sieve (38) provided below the chaff sheave (37) is provided on the front sorting board (31), and a second chaff sheave (39) connected to the rear side of the chaff sheave (37) and the first and second streams. Plate (40) (4
1) and 1) are provided on the rear swing sorting disc (32).

The first and second air passages (42) are provided below the first chaff sheave (37) and the Glen sheave (38).
Kara Minoh fan (44) that supplies selection wind through (43)
And the first gutter (45) and the first conveyor (4) that receive the grain from the grain sieve (38) and send it to the fried cylinder (8).
6), the second gutter (47) and the second conveyor (48) for sending the reduced products from the second flow grain board (41) to the second reduction cylinder (23), and the rear end of the chaff sheave (39). And a third mouth (49) to face it so that the grain of the first gutter (45) is delivered to the tank (7) and the reduced product of the second gutter (47) is delivered to the feed pan (36). are doing.

As shown in FIGS. 5 to 6, the rear sorting board (3
2) Fix the first grain on the front side (40) to reduce the weight difference between the front and rear sorters (31) and (32), and to the rear and below the rear end of the grain sieve (38), the most grain. Board (4
0) is always arranged, and pivot shafts (51) (at both ends of a swing arm (35) for rotatably supporting the threshing unit (4) outside the left and right side walls via a fulcrum shaft (50). 52) by connecting the front and rear ends of the front and rear sorters (31) and (32), and swinging the front and rear sorters (31) (32) by anti-phase drive in which one moves backward when the other moves backward Thus, even when the front and rear sorters (31) (32) are closest to each other or farthest from each other, and when the grain quantity of the grain sieve (38) is large, the grain from the grain sieve (38) is the most flowing grain board ( 40) to the first gutter (45) without fail, and by oscillating the first grain plate (40) in anti-phase with respect to the Glen sieve (38), the grain on the first grain plate (40) Prevents the accumulation of grains and enables continuous work with a wet material, It is configured to enhance the sorting performance to perform the action to loosen the dust.

As shown in FIGS. 7 to 10, the first and second chaff sheaves (37) of the front and rear sorting boards (31) (32).
(39) is the left and right swing side frames (53a) (53b).
A large number of chaff fins (55) including one or more assembly-type chaff fins, which will be described later, are stretched between (54a) and (54b) at substantially equal intervals so that the inclination angle can be adjusted. The fulcrum pin (57) on the upper outside and the movable adjusting pin (58) on the lower side of the left and right fin receivers (56) to be detachably fitted are attached to the left and right side frames (53a) (5).
3b). (54a) (54b) projecting outward and bolting to each side frame (53a) (53b). (54a) (54b) to fix them to the holding plate (59).
7) The protruding end of 7) is rotatably held, and the adjustment pin (5) is attached to the fin connecting rod (60) slidably contacting the side frames (53a) (53b) (54a) (54b).
The protruding end of 8) is rotatably held, and the pressing plate (5
The chaff sheave (37) is changed by changing the inclination angle of the fin (55) by the parallel movement of the connecting rod (60) with respect to 9).
It is configured to adjust the opening degree of (39).

Further, mounting holes (61) for inserting the fins (55) with the fin receivers (56) fitted to the right ends of the fins (55) are formed in the left frame (53a) (54a), respectively. At the same time, the pin holes (62) and the long holes (6) for inserting the fulcrum pin (57) and the adjustment pin (58) provided above and below the fin receiver (56) at the right end of each fin (55).
3) are opened in the right side frames (53b) and (54b) respectively, and the swing side frames (53a) (53b) and (54a) (54
The fin (56) is taken in and out from the left side with respect to b) and is attached and detached.

The fin (55) has a rectangular cross section with the upper end of the fin body formed in the shape of a long flat plate being a thick portion (55a) for bulging the back surface and the middle portion for bulging both the front and back surfaces. In the thick portion (55b), a lower end portion is further formed into a tubular portion (55c) having a square tubular cross-section on the surface side, so that the fins (55) can be secured in strength.

The fin receiver (56) is provided on the thick plate portion (56a) having a constant length on the inner side opposite to the pins (57) and (58), and the inner surface of the thick plate portion (56a). The vertical and horizontal cut grooves (64) (65), which are recesses of a certain depth into which the fins (55) are inserted, are formed in the left and right sides symmetrically with respect to the center line of the vertical cut grooves (64). The grooves (64) and (65) are provided, and the fins (55) are provided at one end side and in the middle of the longitudinal cut groove (64).
Notch enlarged portions (64a) (64b) that fit into the respective thick portions (55a) (55b) of the
4) On the left and right sides of the other end, insertion convex portions (66) that fit into the cylindrical portion (55c) defined by the lateral groove (65) are formed, while the fulcrum on the enlarged portion (64a) side is formed. Pin (5
7) is provided on the extension line of the fin (55) which is substantially the same as the center line of the cut groove (64), and the adjustment pin (58) on the protrusion (66) side is opposite to the protrusion (66) from this extension line. It is provided with a certain size offset in the lateral direction.

A semicircular pin guide surface (61a) for guiding and supporting the fulcrum pin (57) is formed at the upper end of the lower side of the mounting hole (61), and at the lower end of the lower side of the hole (61). The adjustment slot (61b) of the offset adjustment pin (58) is formed, and the fulcrum pin (57) is supported by the guide surface (61a) to move the adjustment pin (58) within the slot (61b). By this, the inclination angle of the fins (55), that is, the opening degree of the chaff sheaves (37) (39) is adjusted. When adjusting the tilt angle of the fin (55), as shown in FIG. 8, the pin peripheral portion (56b) having a diameter larger than the fulcrum pin (57) diameter of the thick plate portion (56a) and the pin. The lower side portion (56c) between (57) and (58) is always connected to the fin inclined portion (67) which is an interference portion between the guide surface (61a) and the elongated hole portion (61b) in the side frames (53a) and (54a). Let it be in a state of interference,
The fin (55) is configured so as to restrict the leftward movement of the fin (55) to ensure smooth rotation of the fin (55).

As shown in FIGS. 11 to 12, two front and rear fixed chaff fins (68a, 68b) are provided between the feed pan (36) and the first chaff sheave (37). Left and right side frames (53a) (53
The pivoting plate (7) fixed to the inner surface of b) by bolting (69)
The left and right attachment pieces (71) of the front and rear chaff fins (68a) (68b) are attached to the left and right side frames (53a) (53b), and the left and right ends of the feed pan (36) are fixed at the middle of the left and right sides. Rear chaff fin (68
A connecting plate (7) fixed to one or more in the left and right middle part of b)
2) is detachably fixed via a bolt (73) to secure the strength of the fixed chaff fins (68a) (68b).

As shown in FIGS. 4 and 13, the first and second air passages (42) and (43) are stretched between the left and right side walls (4a) and (4b) of the threshing section (4). (74)
And the upper Kara case (75), the Kara (4
4) The left and right side walls (4) of the threshing part (4) are rotated by the rotation of the main body.
a) Left and right side inlets (75a) (7) opened in (4b)
5b) the sorted wind sucked from the first and second air passages (42)
It is supplied to the lower side of the first chaff sheave (37) and Glensieve (38) via (43), and is left and right 2 in front of the upper Kara-mino case (75) (in the direction of the sorting wind) to the front Kara-mitsu case (74). Sheet-by-sheet sorting style guide (76) (7
7) are provided substantially symmetrically to each other, two left side sorting wind guides (76) and two right side sorting wind guides (77) are provided in parallel, and two left side parallel sorting wind guides (76) are provided. The right and left sorting wind guides (77) and (76) are respectively set inward so that the interval between the two parallel sorting wind guides (77) becomes narrower in the direction of the sorting wind. Even if the left and right inlets (75a) (75b) cannot be evenly sucked by the left and right inlets (75a) (75b) due to the configuration of the left and right inlets covers (not shown) that also serve as bearings for the Karako (44) Guide (76) (7
According to 7), the uniform sorting air is supplied over the entire width of the sorting (width of the rocking sorting board) without lowering the wind speed.

Thus, the assembly-type chaff fins (78) included in the plurality of chaff fins (55) forming the first and second chaff sheaves (37) (39) of the swing selection disks (31) (32) are installed. This will be described in detail below with reference to FIG.

The assembling type chaff fin (78) is divided into two divided fins (78a) (7) which are obtained by dividing the chaff fin (55) of the above-mentioned other integral body into two equal parts at the central portion in the longitudinal direction.
8b) and these two split fins (78a)
(78b), with each inner end face (divided end face) butted against each other, from the front side to one stopper plate (79) that closely joins each inner end part to this back face, by tightening at two locations with screws (80). Thus, the chaff fin (55) having the same structure as the other integral chaff fin (55) can be assembled.

In addition, screw holes (81) and (82) of the screws (80) are provided in the inner end portions of the divided fins (78a) and (78b) and the stopper plate (79), and the stopper plate (79) is provided. A groove (82) for fitting the thick portion (55b) of each divided fin (78a) (78b) is provided over the entire width on the joint surface with each divided fin (78a) (78b), and the stop plate ( The nuts (84) for screwing the screws (80) are fixed to the back sides of the four screw holes (82) of 79).

The above-mentioned assembly type chaff fin (78) is also assembled at the manufacturing stage to the swing sorting discs (31) (32) at the same time as the other integral chaff fin (55). After it reaches the user as a product, the assembly type chaff fin (78) is the left or right split fin (78).
a) (78b) and the stop plate (79) are released from each other by removing the two screws (80), and the other split fins (78a) (78b) are attached with the stop plate (79). After uncoupling the divided fins (78a) (78b) from each other, the left divided fin (7) is moved with the inner ends of the left and right divided fins (78a) (78b) being displaced forward and backward.
8a) is pulled to the right side, and the right split fin (78b) is pulled to the left side, so that the left and right split fins (78a) (78b) are pulled.
The swinging sorting boards (31) and (32) are removed from the threshing section (4) by pulling out the outer end portions of the left and right fin receivers (56).
Assembled chaff fins (78) are disassembled and removed inside the rocking sorters (31) and (32) in a state where the assembled chaff fins (78) are assembled to make a gap. .

On the other hand, in the disassembled assembled chaff fin (78) that has been removed, the outer ends of the left and right split fins (78a) (78b) are placed in the left and right fin receivers (56), contrary to the above-described removal work. After inserting and fitting, the other split fins (78a) (78) (78) on the surface of the stop plate (79) attached to either the left or right split fins (78a) (78b).
The inner end rear surface of b) is joined, and the left and right split fins (78
a) While the inner end faces of (78b) are butted and joined, the other split fins (78a) (78b) removed from the stop plate (79) are attached to the stop plate (79) with two screws (80). Swing sorter (31) by tightening with
Assembling the chaff fins (78) in a disassembled state inside the rocking sorter discs (31) (32) with the (32) assembled to the threshing unit (4) and to the swing sorter discs (31) (32). Is assembled.

Then, for example, an assembly type chaff fin (78) of two chaff fins at a position (A) shown in FIG. 4 is assembled.
In such a case, when the second conveyor part (48) is clogged or the second-flow grain board (47) is stagnant, the two assembly-type chaff fins (78) are disassembled to perform swing selection. By removing from the disc (32) and making a gap at the location (A), the swing sorting discs (31) (32) are removed from above the sorting disc (32) without being removed from the threshing section (4). It is possible to easily remove clogging and retention by putting a hand under the sorting board (32) through the gap.

Further, for example, when the two chaff fins at the positions (B) and (C) shown in FIG. 4 are combined chaff fins (78), the gran sieve (38) at the bottom of the rocking sorting board (31) is used. The removal of the clogging of 1) can be easily performed in the same manner as above.

Although a typical embodiment of the present invention has been described above, the number of divided chaff fins to be divided, the joining structure, and the structure as a combine are not specified in the present invention.
Any structure may be used as long as the assembly-type chaff fin can be disassembled and assembled to achieve its purpose. In addition, it goes without saying that the present invention can be appropriately modified and implemented without departing from the spirit thereof.

[0030]

As described above, according to the present invention, in a combine in which a large number of chaff fins are crossed between the left and right side frames of the rocking sorter to form a chaff sheave, the chaff sheave is 2
Since it includes one or more prefabricated chaff fins that connect one or more split fins in the longitudinal direction to form one chaff fin, the front and rear integration of the prefabricated chaff fins by disassembling the prefabricated chaff fins. There is a gap between the chaff fin and the chaff fin, and by using this gap to put your hands from the top to the bottom of the rocking sorter, you can perform cleaning and maintenance work on the lower side of the rocking sorter while it is attached. It can be done easily.

[Brief description of drawings]

FIG. 1 is a perspective explanatory view of chaff fins.

FIG. 2 is an overall side view of the combine.

FIG. 3 is an overall plan view of the combine.

FIG. 4 is a cross-sectional explanatory view of a threshing unit.

FIG. 5 is a side view of the sorting board.

FIG. 6 is a side view of a rear sorting board.

FIG. 7 is an explanatory perspective view of a front sorting board.

FIG. 8 is a side view of the chaff fin.

FIG. 9 is an explanatory view showing a mounted state of chaff fins.

FIG. 10 is a cross-sectional explanatory view of chaff fins.

FIG. 11 is a side view of a fixed chaff fin.

FIG. 12 is an explanatory plan view of a fixed chaff fin.

FIG. 13 is an explanatory view of mounting a sorting wind guide.

FIG. 14 is a perspective explanatory view of an assembled chaff fin.

[Explanation of symbols]

 (31) (32) Sorting board (37) (39) Chaf sheave (53a) (53b) (54a) (54b) Side frame (55) Fin (integral) (78) Fin (assembly type)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akinori Kakizaki 428 Enami, Okayama City Seirei Industrial Co., Ltd.

Claims (1)

[Claims] 1. In a combine in which a large number of chaff fins are crossed between left and right side frames of a rocking sorting board to form a chaff sheave, the chaff sheave is formed by connecting two or more divided fins in the length direction. Swing selection device for combine harvesters, comprising one or more assembling chaff fins formed on the chaff fin.