JPH06276834A - Threshing apparatus of combine harvester - Google Patents

Abstract

PURPOSE:To enable the attaching and detaching of a cutting blade of a treating chamber singly without taking out a treating drum. CONSTITUTION:In a threshing apparatus of a combine harvester furnished with a treating drum 7 parallel to a threshing drum, plural cutting blades 44 are, attached to a cutting blade attaching table 46 having a mounting seat 45 at an end to form a cutting blade cassette 47. The treating chamber is provided with a cassette-inlet and outlet port 48 at the rear wall 28a of the chamber to insert the cutting blade cassette 47 at the outer side of the orbit A of the tip of threshing tooth of a treating drum 7 from the back of the treating chamber containing the treating drum into the inside of the chamber and to take out the cassette backward from the inside of the treating chamber.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine threshing device having a processing cylinder in parallel with a handling cylinder.

[0002]

2. Description of the Related Art Conventionally, a plurality of cutting blades for shredding straw waste are individually attached to the side wall of a processing chamber having a processing cylinder inside by bolting from the inside of the processing chamber.

[0003]

However, unless the processing cylinder is pulled out to the rear of the processing chamber, the mounting bolts for each cutting edge cannot be removed, and the inspection, replacement, and polishing work for each cutting edge is required. However, there was a problem that it became a very large-scale work.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, in a combine threshing device having a processing cylinder in parallel with a handling cylinder, a plurality of cutting blades are attached to a cutting blade mount having an attachment seat at one end. A cassette blade is formed outside the treatment tooth tip locus of the processing cylinder, and a cutting blade cassette is inserted inside the processing chamber from the rear of the processing chamber and pulled out from the inside of the processing chamber to the rear of the processing chamber. In addition to being provided on the wall, a cassette doorway is formed in the cassette doorway so that the cutting blade cassette can reciprocate between an insertion / removal position outside the trajectory and a mounting position where only the tip side of each cutting blade projects toward the inside of the trajectory. ,
The cutting blade cassette at the mounting position is fixed to the mounting position by bolting the mounting seat of the cutting blade cassette to the rear wall of the processing chamber.With the processing cylinder installed inside the processing chamber, only each cutting blade is processed in the processing chamber. On the other hand, it is possible to attach and detach, and it is possible to easily reduce the working time and labor because it is not necessary to pull out the processing cylinder rearward from the processing chamber during inspection, replacement and polishing work of the cutting edge.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a rear view of the processing chamber, FIG. 2 is an overall side view of the combine, and FIG. 3 is a plan view of the combine, where (1) is a track frame equipped with a traveling crawler (2), and (3) is the above-mentioned. The machine stand installed on the truck frame (1), (4) the threshing section in which the feed chain (5) is stretched on the left side, and the handling cylinder (6) and the processing cylinder (7) are built in (8) A mowing unit provided with a cutting blade, a grain culm transport mechanism, and the like, (9) is a straw chain (1
0) (11) A straw processing unit facing the end, (12) a driver's cab including a driver's seat (13) and a driving operation unit (14),
(15) fried the grain from the threshing section (4) into a fried cylinder (1
6) a grain tank for storing the grains, (17) an upper discharge auger for taking grains in the grain tank (15) out of the machine,
(18) is an engine that drives each part of the combine, and is configured to continuously perform cutting and threshing work.

Reference numeral (19) in the drawing is a vertical discharge auger which is vertically fixed to the right rear portion of the machine body and rotatably supports the upper discharge auger (17) at the upper end thereof.
9) has the right side of the straw processing unit (9) rotatably supported, and the straw processing unit (9) is provided at the rear of the machine body with the auger (19).
And the auger (1
9) allows the rear side of the grain tank (15) to be rotatably supported, and the grain tank (15) on the right side of the machine is the auger (1).
It is installed so that it can be opened and closed around 9).

FIG. 4 is a cross-sectional view of the threshing section (4). In the figure, (25) is a handling room in which an axial-flow type handling barrel (6) axially mounted in the longitudinal direction of the machine is installed, and (26). Is the handling room (25)
A handling mouth for inserting grain culms into the handling room, (27) a crimp net stretched under the handling room (25), and (28) a handling room (2).
5) The processing cylinder (7) with the front end left side connected to the rear end right side in communication.
A processing chamber in which the inside of the processing cylinder (6) is installed in parallel, (29) is a crimping net extending below the processing chamber (28), and (3)
Reference numeral 0) is a dust outlet at the rear end of the processing chamber (28), and reference numeral (31) is an oscillating sorting board which is swingably supported in the front-rear direction, and is a feed pan (32) located below the crimp net (27).
A chaff sheave (33) disposed below the rear portion of the crimp net (27), a gren sheave (34) disposed below the rear portion of the chaff sheave (33), and a straw rack (34) disposed behind the chaff sheave (33). 36) and a second-flow grain plate (3) disposed below the Straw rack (36)
The rocking sorting board (31) is constituted by 7) and the like.

Further, in the figure, reference numeral (38) is the sorting board (31).
Kara-mino that sends sorting wind in the direction, (39) is the first conveyor that communicates with the fried cylinder (16) and takes out the grains to the grain tank (15), and (40) is the second one. The second conveyor for returning to the rocking sorting board (31), (41) is an intake / exhaust dust fan that exposes a suction port above the straw rack (36), and is provided by the handling cylinder (6) and the processing cylinder (7). The threshed grains are sorted by the swing sorting disc (31), and only the sized grains are taken out to the grain tank (15), and the straw is discharged through the straw chains (10) (11). ) (4
It is configured to be sent to the straw processing unit (9) having 3) to be discharged outside the machine after cutting.

As shown in FIGS. 1, 5, and 6, the axis of the processing cylinder (7) is located outside the tip locus (A) of the handle teeth (7a) of the processing cylinder (7) in the processing chamber (28). Multiple cutting edges (4
4) are arranged to shred the straw fed into the processing chamber (28), and each of the above is mounted on a horizontally long rectangular cutting blade mount (46) having a mounting seat (45) at one end. Cutting blade (44) ...
Are fixed at predetermined intervals by bolts to form a cutting blade cassette (47).

Further, the rear wall (28a) of the processing chamber (28) exposed to the rear of the machine body by opening the straw processing unit (9).
A cassette inlet / outlet (48) is provided in the chamber, and a cassette mount (49) is provided in the processing chamber (28).

The cassette inlet / outlet port (48) connects the cutting blade cassette (47) to the processing chamber (28) outside the track (A).
The cutting blade cassette (47) is provided at a position where it can be inserted into the inside from the rear and pulled out from the inside of the processing chamber (28) to the rear, and the cutting blade cassette (47) is inserted and removed at the outside of the track (A) in the cassette entrance (48). And a mounting position in which only the tip end side of each cutting blade (44) is projected to the inside of the locus (A).

Then, the cutting blade cassette (47) at the mounting position
The cassette seat (48) by the mounting seat (45) of
Is closed from the rear surface, and the mounting seat (45) is fixed to the rear wall (28a) by bolts (50) to fix the cutting blade cassette (47) at the mounting position. The tips of the handling teeth (7a) pass between the cutting blades (44).

On the other hand, the cassette mount (49) has a lid structure in which the inclined portion of the upper right corner of the side wall (28b) of the processing chamber (28) can be opened and closed, and the upper edge of the cassette mount (49) is The hinge (52) is rotatably connected to the right edge of the upper horizontal portion of the side wall (28b), and the lower edge of the cassette mount (49) is superposed on the upper edge of the right vertical portion of the side wall (28b) from the outside. ing.

Further, upper and lower guide rails (53) and (54) for slidably fitting the upper and lower edges of the cutting blade mount (46) on the inner surface side of the cassette mount (49) are provided on the shaft of the processing cylinder (7). In addition to being fixed by stretching in the direction, a stopper (55) for fitting the tip edge of the cutting blade mount (46) is fixed.

Further, the cassette mount (49) is constantly biased to the insertion / removal position of the cutting blade cassette (47) via the leaf spring (56), and the lower edge of the cassette mount (49) is attached to the side wall (28).
It is fixed to the mounting position of the cutting blade cassette (47) by fixing a bolt (57) from the outside to b).

Then, the cutting blade mounting base (46) is inserted into and removed from the guide rails (53) (54) of the cassette mounting base (49) by inserting / removing the cutting blade cassette (47) into / from the processing chamber (48). At the same time, the cassette mount (49) is configured to follow the reciprocating movement of the cutting blade cassette (47) between the insertion / removal position and the mounting position.

This embodiment is constructed as described above, and now,
When the cutting blade cassette (47) is not attached, the cassette inlet / outlet (48) of the rear wall (28a) of the processing chamber (28)
Is in an open state, and the cassette mount (49) inside the processing chamber (28) is elastically supported at the mounting position by the leaf spring (56). Then, the cutting blade cassette (4
Attach the tip of the cutting blade mount (46) of 7) to the cassette inlet / outlet (4
8) is inserted between the upper and lower guide rails (53) and (54) of the cassette mounting base (49), and the cutting blade cassette (47) is pushed from the rear of the processing chamber (28) until the mounting seat (45) contacts the rear wall (28a). By inserting inside, the cutting blade mount (46) fits into the upper and lower guide rails (53) (54) and the stopper (55), and the cutting blade (44) is inserted between the upper and lower guide rails (53) (54). ) Is projected inward, the cutting blade cassette (47) is attached to the cassette mount (4
9), and the cutting blade cassette (47) is moved by the cassette mount (49) in the processing chamber (28) to the locus (A).
Hold on the outside. After that, the rear wall (2) of the processing chamber (28)
8a) Attach the mounting seat (45) on the outer surface to the cassette entrance (48)
The cutting blade cassette (46) is moved from the insertion / removal position to the mounting position, and the mounting seat (45) is attached to the rear wall (28a) of the processing chamber (28) from the outer surface by the bolt (50).
The side wall (28b) of the processing chamber (28) is provided with the cassette mount (49) that is stopped and moves from the insertion / removal position to the mounting position following the movement of the cutting blade cassette (46) from the insertion / removal position to the mounting position. By fastening bolts (57) to the cutting blades (44), the cutting blades (44) are mounted and fixed in the processing chamber (28) in a state where the tips of the cutting blades (44) protrude inside the locus (A).

On the contrary, from the inside of the processing chamber (28) to each cutting edge (4
4) When removing, checking, replacing, polishing, etc.,
First, the straw processing unit (9) is opened to expose the rear wall (28a) of the processing chamber (28) to the rear of the machine body. Then, the mounting bolt (50) of the cutting blade cassette (45) on the rear wall (28a) of the processing chamber (28) and the side wall (28) of the processing chamber (28).
b) Mounting bolt (5) for the cassette mount (49) on the rear end side
7) is removed, the cassette mount (49) and the cutting blade cassette (47) are integrally moved to the insertion / removal position by the leaf spring (56), and each cutting blade (44) ... ) Go backwards. After that, the cutting blade cassette (47)
Is removed from the cassette inlet / outlet (48) to the rear of the processing chamber (28), so that the cutting blades (44) are integrally taken out to the rear of the processing chamber (28).

[0019]

As is apparent from the above embodiments, the present invention is a combine threshing device provided with a processing cylinder (7) in parallel with a handling cylinder (6), and a cutting blade having a mounting seat (45) at one end. A plurality of cutting blades (44) are attached to the mounting base (46) to form a cutting blade cassette (47), and the handle teeth (7) of the processing cylinder (7) are formed.
a) For inserting the cutting blade cassette (47) outside the tip locus (A) into the inside of the processing chamber (28) in which the processing cylinder (7) is installed and from the inside of the processing chamber (28) to the rear. A cassette inlet / outlet (48) is provided on the rear wall (28a) of the processing chamber (28), and a cutting blade cassette (47) is provided inside the cassette inlet / outlet (48) at an insertion / removal position outside the track (A) and each cutting blade (48). 44) ... forms a cassette inlet / outlet (48) so as to be reciprocally movable between a mounting position in which only the front end side of the cutting blade (A) projects toward the inside of the locus (A), and a mounting seat (45) of the cutting blade cassette (47) at the mounting position. ) Processing chamber (28) rear wall (28
The cutting blade cassette (47) is fixed to the mounting position by fastening the bolt (50) to the processing chamber (2).
8), the cutting blades (44) ... can be attached to and detached from the processing chamber (28) only, and the cutting blades (44) can be inspected and replaced.
It is not necessary to pull out the processing cylinder (7) from the processing chamber (28) to the rear during the polishing work, and it is possible to easily reduce the working time and labor, which is a remarkable effect.

[Brief description of drawings]

FIG. 1 is a rear view of a processing chamber.

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

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

FIG. 4 is a sectional view of a threshing unit.

FIG. 5 is an explanatory perspective view of a cutting blade cassette.

FIG. 6 is a sectional view of a processing chamber.

[Explanation of symbols]

 (6) Handling cylinder (7) Processing cylinder (7a) Handling tooth (28) Processing chamber (28a) Rear wall (44) Cutting blade (45) Mounting seat (46) Cutting blade mounting base (47) Cutting blade cassette (48) ) Cassette entrance / exit (A) Trajectory tip trajectory of processing cylinder

Claims (1)

[Claims] 1. In a combine threshing device having a processing cylinder in parallel with the handling cylinder, a plurality of cutting blades are attached to a cutting blade mount having a mounting seat at one end to form a cutting blade cassette, and the handling teeth of the processing cylinder are provided. The cutting blade cassette is installed on the outside of the tip locus, and a cassette inlet / outlet is provided on the rear wall of the processing chamber to insert the cassette into the inside of the processing chamber inside the processing cylinder and to pull it out from the inside of the processing chamber to the rear side. A cassette inlet / outlet is formed so that the blade cassette can be reciprocally moved between an insertion / removal position outside the locus and a mounting position where only the tip side of each cutting blade projects toward the inside of the locus, and a mounting seat for the cutting blade cassette at the mounting position. The combine threshing device, wherein the cutting blade cassette is fixed to the mounting position by bolting to the rear wall of the processing chamber.