JPS5840836Y2 - Cross-cutting straw cutter - Google Patents

Description

[Detailed description of the invention] The invention is based on the idea that a cutter shaft that rotates at high speed and a rotating shaft (raking shaft) that rotates at low speed are made parallel to each other in the inner cavity of a machine frame formed in the shape of a horizontally long machine casing. The cutter shaft is supported by a horizontal shaft, and the cutter shaft has a large number of circular saw-shaped rotors mounted in parallel in the axial direction, and the raking shaft has a large number of raking wheels mounted in parallel on the cutter shaft. In a cross-cutting type straw removal cutter which is arranged and mounted in parallel so as to face each of a large number of rotary teeth, the above-mentioned raking blade is mounted on the raking shaft of the raking shaft and is supported in parallel on the raking shaft. This relates to a collar for a scraping wheel that is arranged and fitted within the spacing between the scraping wheels so as to regulate the spacing between the rings.

The object of the present invention is to make it possible to easily assemble the collar to the raking shaft and to assemble a large number of raking teeth when assembling the lateral cutting type straw removal cutter. To efficiently scrape off cut straw that gets stuck in the space between a large number of rotating teeth mounted in parallel on the cutter shaft during cutting work with a straw cutter. be.

In order to achieve this purpose, the collar for the raking wheel in the cross-cutting type straw cutter according to the present invention is formed into a short cylindrical shape, and a parallel support is mounted on the raking shaft. The collar is arranged and mounted within the intervals of a large number of scraping wheels, and is made of a synthetic resin material and has a boss portion that fits with the aforementioned scraping shaft at the axial center of the inner cavity of the cylindrical body circumferential wall. The width in the axial direction of the circumferential wall of the body corresponds to the interval between the scraping wheels supported in parallel on the scraping shaft, and the axis of the outer circumferential surface of the peripheral wall of the body A plurality of rigid scrapers protrude in the radial direction somewhat longer than the outer edge of the scraper ring when viewed from the axial direction, and the protruding ends protrude into the spacing between rotating teeth arranged in parallel on the cutter shaft. This device is characterized in that the claws are integrally molded with the body circumferential wall from the synthetic resin material mentioned above.

Next, an example will be explained in more detail according to the drawings.
In Fig. 1, a is the machine frame of the cross-cutting straw removal cutter A, which is formed in the shape of a horizontally long machine casing that is long in the front and back direction in the figure, and when mounted on the body of a combine harvester (not shown). A receiving port 1 for receiving straw to be cut is open on the front side (right side in the figure) facing forward of the machine.

(b) connects the terminal end in the transport direction to the machine frame (a) so that the threshed husks (waste straw) discharged from the threshing section of the combine harvester are sent from the receiving port 1 into the inner cavity of the machine frame (a); This is a straw removal device (or foot chain) inserted into the inside of the container.

Reference numeral 2 denotes circular saw-shaped rotary teeth mounted on parallel shafts within the machine frame a in order to cut the straw, and as shown in FIG. Collar 4 on cutter shaft 3...
A large number of cutter shafts are mounted in parallel at appropriate intervals determined by the above, and one shaft end of the cutter shaft 3 is mounted on the body of the combine via a transmission belt 5 and a transmission wheel 6. By being driven by transmission with a certain power take-off shaft (not shown), they are driven to rotate in the direction of arrow A in FIG. 1, respectively.

7... is a scraping wheel arranged so as to face each of the plurality of parallel rotation speeds 2..., and whose parallel shafts are mounted in the inner cavity of the machine frame a, and parallel to the cutter shaft 3 described above. The scraping shafts 9 are horizontally supported in the inner cavity of the machine frame a, and are mounted in parallel with a spacing dimension corresponding to that of the rotating teeth 2. As shown by the arrow in FIG. 1, the upper surface side is rotated toward the opposing rotating tooth 2 side, thereby causing the straw removal device to move the machine frame a. The straw B fed into the inner cavity is raked by the rotating teeth 2...to which opposing part, and
It is no different from the scraping wheel of a conventional cross-cutting type straw cutter in that it supports the straw at the opposing portion and acts to ensure the cutting action of the rotary teeth 2.

8... is for regulating the scraping wheels I... to be arranged in parallel on the scraping shaft 9 with the above-mentioned predetermined interval dimension,
This collar is formed into a short cylindrical shape and is arranged between each scraping wheel 7 and mounted on the scraping shaft 9. It is molded from a synthetic resin material, but when molding, the collar is The main body of the collar 8 is formed into a foil shape that is integrally provided with a boss portion 11 that fits into the scraping shaft 9 at the inner axial center of the cylindrical body circumferential wall 80. The axial width (length) of the trunk wall 80 of
The above-mentioned scraping wheels T are supported in parallel on the scraping shaft 9.
It is formed to have a width corresponding to the interval set between ..., and a protruding end is shown in FIG. As seen from the axial direction, the blade is set so as to be deeper than the outer edge of the above-mentioned scraping wheel 7 so that it rotates deeply within the interval between the rotary teeth 2 mounted in parallel on the cutter shaft 3. A large number of long rigid claws 10 protruding in the radial direction are integrally arranged in a sawtooth pattern at appropriate intervals in the rotational direction by the synthetic resin material used to mold the collar 8. It is.

In the illustrated embodiment, 12 is a transmission gear provided at the shaft end of the rotating shaft 9 of the scraping wheel 7, 13 is a gear fixed to the cutter shaft 3 in constant meshing with the gear 12, and 14 is a rotating tooth. This is a discharge port provided at the bottom of the machine frame a to discharge the straw pieces 15 cut in step 2 to the outside of the machine frame a.

Next, to explain the function and effect, the collar 8 around the raking shaft in the cross-cutting type straw removal cutter according to the present invention configured as described above has a boss portion 11 fitted to the raking shaft 9 at the axial center portion. and the width of the cylindrical trunk wall 80 is
Since it is formed so as to correspond to the spacing between the raking wheels 7 mounted in parallel on the raking shaft 9, the raking wheels T... are assembled and mounted on the raking shaft 9. When doing so, by alternately inserting the scraping wheel 7 and the collar 8 onto the scraping shaft 9, the scraping ring 7
. Since the raking claws 10, which protrude longer than the raking claws 10, are integrally formed, a large number of raking wheels 7, which are mounted in parallel on the raking shaft 9...
In order to regulate the distance within the interval to be a predetermined interval, the collar 8 is positioned between the scraping wheel I and the scraping wheel 7 as described above, and the collar 8 is inserted into the scraping shaft 9. As a result, the scraping shaft 9 is equipped with a scraping pawl 10 that acts to scrape off cut straw that gets stuck between the rotating teeth 2 when the straw removing cassitter is assembled. will be done.

Therefore, according to the collar 8 around the rake shaft of the present invention, the rake teeth 7 can be easily assembled to the rake shaft 9 without increasing the number of parts, and the rake teeth 7... can be assembled to the rake shaft 9 without increasing the number of parts. Cutting straw that becomes stuck in the space between the teeth 2 can be scraped off efficiently.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of an embodiment of the device of the present invention, Fig. 2 is a partially cutaway plan view of the same device, Fig. 3 is a perspective view of the essential parts of the same, and Fig. 4 is a scraping shaft according to the present invention. FIG. 3 is a perspective view of the surrounding collar. Explanation of drawing symbols, a...Machine frame, 2...
Rotating teeth, 3... Cutter shaft, 4... Collar, 7... Scraping wheel, 8... Collar
9... Scratching shaft, 10... Scratching claw.

Claims (1)

[Scope of utility model registration request] A scraping shaft is formed into a short cylindrical shape and supported horizontally in the inner cavity of a horizontally long machine frame in parallel with the cutter shaft, and a large number of scrapers are supported in parallel on the scraping shaft. In a collar for a raking wheel in a cross-cutting straw cutter that is arranged and mounted within the interval between the rings, the collar is made of a synthetic resin material and is attached to the axial center of the inner cavity of the cylindrical body circumferential wall as described above. It is formed into a foil shape having a boss portion that fits with the pinning shaft, and the width of the circumferential wall of the body in the axial direction is formed to correspond to the width of the above-mentioned plowing wheels supported in parallel on the plowing shaft. At an axially intermediate portion of the outer circumferential surface of the body circumferential wall, there is provided an interval of rotary teeth that protrude in the radial direction somewhat longer than the outer edge of the scraping ring when viewed from the axial direction, and whose protruding ends are parallel to the cutter shaft. A collar for a raking wheel in a cross-cutting straw removal cutter, characterized in that a large number of rigid raking claws that protrude inward are integrally molded with the body peripheral wall from the synthetic resin material described above.