JPH0522040Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application This invention relates to a combine cutter, which is a disc-type cutter that shreds straw discharged from a threshing device of a combine, and is attached to the rear of the threshing device.

(b) Prior Art Conventionally, a combine harvester in which a disk-shaped cutter is attached to the rear of a threshing device is already known, and the cutter has a substantially rectangular shape when viewed from the side.

(c) Problems to be solved by the invention When a combine harvester equipped with the known disc-type cutter is loaded onto a truck or freight car, if the combine is loaded with the cutter attached to the combine, the grain culm of the rear combine will be pulled up. The body of the combine came into contact with the lower part of the cutter of the front combine, increasing the distance between the front and rear machines, and depending on the size of the transport vehicle, the number of vehicles that could be loaded was reduced, so the cutter was removed before transport.

In addition, if the cutter is removed and transported as described above, the transportation cost increases, and the task of assembling the cutter after sending it to the farmer is troublesome.

Furthermore, combine harvesters are usually equipped with either a cutter or a bundling device as a straw disposal device, or are sometimes equipped with both. In such cases, when the cutter is removed and placed on the ground,
The cutting blade was located at the top, making it unstable.

(d) Means for solving the problem The present invention is a combine harvester in which a disk-shaped cutter is attached to the straw discharge section at the rear of the threshing device mounted on the machine base, and the cutter is connected to the left and right side frames. The cutter is composed of a connected horizontal frame, and a portion extending from the rear middle part to the front lower part of the cutter is an inclined surface along the tangent to the rotary blade when viewed from the side, and this inclined surface has a triangular shape when viewed from the side. An auxiliary frame whose rear surface is substantially in line with the rear surface of the cutter, and a straw guide cover that hangs down surrounding the straw discharge port of the cutter are detachably attached, and a binding device is attached to the rear surface of the auxiliary frame. The above-mentioned problem was solved by providing a mounting part.

(E) Effect When loading a combine harvester onto a transport vehicle, even if multiple units are loaded in front and behind each other with a cutter attached to the rear of the threshing device, the grain culm pulling body of the rear combine harvester will not move at the diagonal cutout at the bottom of the cutter near the rear. The grain enters the grain and forms a polymerized state at the top and bottom, minimizing the space between the front and rear, allowing effective use of the loading platform of the transport vehicle, and also allowing transport with the cutter attached to the threshing device of the combine. This makes it possible to omit the work of installing the cutter after transportation.

In addition, a disc-shaped cutter has a rotary blade at the top and its center of gravity is closer to the top, but since the cutter is along the tangent to the rotary blade and reaches toward the bottom, the center of gravity can be lowered. .

Furthermore, when tying waste straw, an auxiliary frame is attached to the slope at the rear lower part of the cutter, and the tying device can be attached using this auxiliary frame and the rear surface of the cutter.

(F) Example An example of the present invention will be explained with reference to the drawings.
Reference numeral 1 denotes a threshing device mounted on a machine base having a traveling device 2, and a straw conveying device 3 that protrudes rearward from the rear of the culm discharge port is installed above the dust sorting chamber of the threshing device 1. A disk-shaped cutter 4 is attached to the rear part, and the machine frame of the cutter 4 consists of left and right side frames 4a and 4b forming a vertical frame, a hanging rod 5 connecting the front upper parts of these frames, and a rear upper part. The cutter 4 is removably attached by hooking the hanging rod 5 to the receivers 6, 6 protruding from the upper rear end of the threshing device 1. A large number of disc blades 8a, 8 are mounted on the pair of front and rear rotating shafts 7, 7 supported between the side frames 4a, 4b.
b.... are attached at appropriate intervals, and the pulley 10 fixed to the rear rotating shaft 7 is connected to the shaft 9 of the threshing device 1.
V-belt 12 by drive pulley 11 attached to
The front rotating shaft 7 is driven by the rear rotating shaft 7 via mutually meshing gears,
A switching plate 15 having guide rails 14, 14 which covers the supply port 13 and faces the straw removal conveying device 3 is hinged to the front part of the rear cover 4c.

The cutter 4 is attached to the left and right side frames 4.
A portion extending from the middle part of the rear surface of a, 4b toward the tip of the lower surface and close to the outer periphery of the circular saw-shaped disk blade 8b at the rear is obliquely cut in side view to form a slope A. The slope A has a rear cover c' whose upper part is removably screwed to the rear upper end of the slope A and whose lower part can be folded and rotated, and side surfaces screwed to both sides of the rear cover c' and to the slope A. A cutting straw guide cover C consisting of covers c'' and c'' is attached.

Further, since a binding device 16 is sometimes attached to the rear part of the cutter 4, the binding device 16 and its attachment means will be explained.
Like the conventional one, it is composed of a knot part, a packer, a discharge arm, a door, a stock regulating plate 18, an input shaft 19, etc., and a mounting frame 20 on which the binding device 16 is attached so as to be adjustable in horizontal movement is The upper parts of both side frames are connected with hanging rods 21, and the mounting brackets 2 are attached to the outer lower part of the side frames.
2, 22 are fixed, and the hanging rod 21 of the mounting frame 20 is hung on the supports 23, 23 on both sides of the rear surface of the cutter 4, and the fittings 22, 22 are screwed onto the slope A of the cutter 4. Both ends of the pipe 25, which is screwed onto the rear part of the attached triangular auxiliary frames 24, 24 and which connects the lower rear end of the mounting frame 20, are connected to the stay 26,
It is connected to the machine base by 26.

Furthermore, when only the binding device 16 is attached to the threshing device 1, an intermediate frame 27 is inserted in place of the cutter 4, and this intermediate frame 27 is attached to the front side of the side frames 27a and 27b, which are substantially the same as the cutter 4. The upper part is connected with a hanging rod 5a, and the rear part has slopes 28, 28 at the front and rear corners of the upper part.
A straw waste passage 31 is formed between the guide frame 30 and the hanging rod 21, and the cutter 4 is connected to the guide frame 30 in a downward U-shape.
Guide rails 14, 14 similar to the above are installed and fixed, and an intermediate shaft 7a is supported at a portion corresponding to the rotating shaft 7 at the rear of the cutter 4.
The intermediate pulley 10a attached to the pulley 1
0 and is interlocked and connected to the drive pulley 11 by the V belt 12, and the binding device 1
6, after attaching the intermediate frame 27 to the rear of the threshing device 1, attach the auxiliary frames 24, 24 to the slope A and then attach the binding device 16, or attach the auxiliary frames 24, 24. Mounting metal 22 of the frame 20,
22, hang the hanging rod 21 on the latch 6a,
The mounting brackets 22, 22 are screwed onto the auxiliary frame 24.

When the combine harvester is loaded onto the loading platform of a truck or freight car, the cutter 4 is usually attached to the threshing device because straw removal in the combine is often shredded by the cutter 4. At the same time, remove the side covers c'' and c'' of the cut straw guide cover C, and load the rear cover C' onto the loading platform B with the rear cover C' overlapped and screwed onto the slope A as shown by the chain line in Figure 1. , the grain culm pulling body 34 of the rear combine harvester is connected to the cutter 4 of the front combine harvester.
It enters the lower part of the grain and polymerizes in the lower part, and the grain culm triggering body 3
Since the front part of No. 4 approaches the machine base and traveling gear 2,
The distance between the traveling device 2 and machine base of the front combine harvester and the grain culm lifting body 34 of the rear combine harvester can be narrowed to approximately the same extent as when the cutter 4 is not attached. Of course, the straw guide cover C may be completely removed for loading.

Furthermore, when the transported combine harvester is used, when it is unloaded from the loading platform B, the cutter 4 is attached to the threshing device 1, and the reaping and threshing operation, which is performed while shredding the waste straw, can be started immediately. .

Furthermore, if the waste straw discharged from the waste straw conveying device 3 is to be reaped and threshed while appropriately switching between shredding and bundling, a cutter is installed at the rear of the threshing device 1 as shown in FIG. Attach the auxiliary frames 24, 24 to the rear slope of the
4 and the rear surface of the cutter 4 as described above, and when the waste straw is to be shredded and scattered on the field, the switching plate 15 is opened as shown by the chain line in Fig. 2 to convey the waste straw. When waste straw is supplied by the device 3, the cutter 4 shreds the waste straw, and the cut straw is discharged to the field while being guided by the cut straw guide cover C. When the switching plate 15 is closed when bundling, the waste straw is cut into pieces. The waste straw is conveyed while being pinched by the waste straw transport device 3 and the guide rails 14, 14, passing over the cutter 4 and supplied to the bundling device 16. The bundling device 16 uses a packer to rake the waste straw into a collecting section and bundle it. The bundled straw bundles are discharged backwards by the discharge arm.

In addition, when only tying the waste straw, if the cutter 4 is replaced with the intermediate frame 27 and the binding device 16 is attached to the rear thereof, the waste straw discharged from the waste straw conveying device 3 is transferred to the guide rail 1 of the intermediate frame 27. ,14
While being pinched and conveyed by the straw removal device 3, straw waste, mud, etc. fall through the straw waste passage 31, and the waste straw is supplied to the bundling device 16 and bundled and released.

(g) Effect of the invention The present invention is a combine harvester in which a disk-shaped cutter 4 is attached to the straw discharge section at the rear of the threshing device 1 mounted on the machine stand as described above, and the cutter 4 is connected to the left and right side frames. The cutter 4 is configured with a horizontal frame connecting these parts, and the part extending from the rear middle part to the front lower part of the cutter 4 is formed into an inclined surface along the tangent line of the rotary blade when viewed from the side, and this inclined surface has a triangular shape when viewed from the side. An auxiliary frame 24 whose rear surface is substantially in line with the rear surface of the cutter 4, and a straw guide cover that hangs down while surrounding the straw discharge port of the cutter are detachably attached to the auxiliary frame 24. A receiving part for attaching the binding device is provided on the rear side, so the combine harvester can be easily attached to the loading platform B of the transport vehicle.
When loading the threshing machine into a
Even with the grain culm puller 34 of the rear combine harvester installed, it is possible to bring it close to the traveling device 2 and the machine base while superimposing it on the slope A of the cutter 4, and by narrowing the distance between the front and rear combine harvesters, the number of loaded combine harvesters can be reduced. Can be many.

Further, when the combine harvester is delivered to the consumer, it can be delivered with the cutter 4 attached to the threshing device 1, so that the trouble of attaching the cutter 4 can be saved.

Furthermore, the slope A, which becomes a relief surface when loaded onto a transport vehicle, has a cutting section at the top, and when the cutter 4, which has a high center of gravity, is removed, it becomes a ground surface and can be held in a stable state. .

Furthermore, when shredding the waste straw discharged from the threshing device 1, if the cut straw guide cover is attached to the lower slope of the cutter 4 without attaching the auxiliary frame 24, the cut straw cut by the cutter 4 can be shredded. If the waste straw is to be discharged into the field without spreading, and the waste straw is to be bundled, an auxiliary frame 24 is installed on the rear slope of the cutter 4 in place of the cut straw guide cover.
By attaching the binding device to the auxiliary frame 24 and the rear surface of the cutter 4, it is possible to easily and stably attach the binding device to the rear surface of the cutter 4.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a side view showing multiple combine harvesters loaded on the platform of a transport vehicle, Figure 2 is a side view showing the cutter and binding device attached to the rear of the thresher, and Figure 3 is a perspective view of the cutter. Figure 4 is a perspective view of the cutter with the cutting part omitted, Figure 5 is a perspective view of the intermediate frame, and Figure 6 is a side view of only the binding device attached to the rear of the threshing device via the intermediate frame. . 1... threshing device, 3... straw conveyance device, 4...
Cutter, 16... Binding device, 27... Intermediate frame,
A...Slope.

Claims (1)

[Scope of utility model registration request] In a combine harvester in which a disk-shaped cutter 4 is attached to the straw discharge section at the rear of a threshing device 1 mounted on the machine stand, the cutter 4 is composed of left and right side frames and a horizontal frame connecting them. The part extending from the middle part of the rear side to the lower part of the front side of 4 is an inclined surface along the tangent to the rotary blade when viewed from the side, and on this inclined surface,
An auxiliary frame 24 having a triangular shape when viewed from the side and whose rear surface is substantially in line with the rear surface of the cutter, and a straw guide cover that hangs down while surrounding the straw discharge port of the cutter are detachably and replaceably attached, A cutter for a combine harvester, characterized in that a receiving part for attaching a binding device is provided on the rear surface of the auxiliary frame 24.