JPS61271904A - Disc for disc rotary - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disc for a disc rotary that plows and inverts cultivated soil as a large soil lump.

[Conventional technology]

Conventionally, this type of disc rotary, for example,
A disc cultivating body in which a plurality of curved disk-shaped discs are arranged side by side on a rotating shaft is arranged on both sides, and no residual tillage portion is generated between the disc cultivating bodies on both sides at the front part between the disc cultivating bodies on both sides. The curved disc-shaped discs are arranged in a substantially V-shape in plan view and are rotatable.The discs on both sides of the front plow the cultivated soil between the disc cultivating bodies on both sides. There is a structure in which soil is dumped onto the uncultivated ground on both sides along a curved surface, and the dumped soil and tilled soil are plowed and reversed by the disks of the disk cultivating bodies on both sides.

[Problem that the invention seeks to solve]

In the above conventional configuration, the disk for disposing of residual tillage disposed at the front part is formed in a curved disk shape, so the soil clod tilled by this disk is large and covers the uncultivated area on both sides. Since it is thrown a long way, the rotating shafts of the disc cultivating bodies at the rear on both sides may ride on this overburden, and in such a case, the work of each disc of the disc cultivating body becomes unstable, and the upward movement is caused by each disc. It becomes difficult to plow the area to a predetermined depth, and the fresh burial that is plowed by the pair of discs in the front part and each disc of the disc plowing body is only guided along the curved surface. There are problems such as the fact that the reversal effect may be uncertain.

Therefore, the present invention was developed in view of the above points, and it is possible to promote the reversal of the plowed soil to prevent it from being thrown widely to the side, and to crush the main legs. The purpose is to do so.

[Means for solving problems]

In the present invention, an insertion hole through which a rotating shaft is inserted is formed in the center, and a soil guiding part is formed on the outer periphery from this insertion hole to expand in an arc shape, and a cutting edge is provided on the outer periphery of the soil guiding part. At the same time, a plurality of soil pushing pieces are cut and raised at predetermined intervals so as to sequentially protrude inward from the rear side in the rotational direction on the soil guiding portion.

[Effect]

Since the present invention is configured as described above, the disk is inserted into the rotating shaft through the insertion hole in the center thereof, and the peripheral portion of the insertion hole is integrally fixed to the flange of the rotating shaft.

When the rotary shaft is rotated, the tilled soil is plowed into a predetermined size by the cutting blades on the outer periphery of the disc, and the plowed soil is
The soil is guided in the reversal direction by the soil guiding part continuous with the cutting blade, and the soil is forced to be successively pushed in the reversal direction by the soil pushing action of the plurality of earth pushing pieces protruding inward of the disk. therefore, on Saturday,
At the same time, the earthen embankment is reliably turned over without being thrown outward too much, and each part of the earthen embankment is forcibly pushed by each earthmoving piece, causing cracks to occur in each section and causing them to fracture. Ru.

〔Example〕

Hereinafter, one practical example of the present invention will be described with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a machine frame, and the machine frame 1 is provided with a mission case 2 which has an omitted shape when viewed from the side, and is covered by a cover integral 4 at the front upper part of a vertical part 3 of the mission case 2.
The input shaft 5 is protruded forward. Furthermore, connecting portions 6 that are connected to a suspension mechanism of a tractor are provided at the upper front portion and the lower portions of both front sides of the machine frame 1.

Next, rotary shafts 9 are rotatably provided on both front sides of the horizontal portion 7 of the mission case 2 via bearing bodies 8, and seven flange 10 of the rotary shafts 9 on both sides are used for processing residual tillage. A pair of disks 11 are integrally attached in a substantially V-shape when viewed from above.

The pair of disks 11 is composed of a plurality of curved disk plates 12 that are divided and formed into a substantially fan shape, and each disk plate 12 has a plurality of mounting plates attached to a mounting plate portion 13 that is joined to the flange 10. A hole 14 is formed, and an engagement recess 15 that engages with the outer side of the rotating shaft 9 is formed at the base end of the mounting plate 13. Further, the disk plate 12 is gradually curved inwardly in an arc shape as it reaches the outer part from the mounting plate part 13, and one corner of the outer part 16 has a front end edge 17 in the rotational direction and an outer edge blade. A large arcuate edge 19 is formed at the intersection with the section 18, and an arcuate kerf 21 is formed in the rotational direction from the middle of the other side of the outer section 16 to the rear edge 20. The rear part of the disk plate 12 in the rotational direction is divided by the groove 21 into an outer narrow plate-like part 22 and an inner plate-like part 23. An earth-repellent plate portion 25 is formed which is extruded in an arc shape toward the front side of the disc plate 12 and gradually protrudes inward from the curved surface 24 of the disc plate 12 at a predetermined inclination angle.

The mounting plate portions 13 of each of the disk plates 12 are disposed adjacent to the circumferential side surface portions of the seven flange 10, respectively, and the engagement recesses 15 of each of the mounting plate portions 13 are arranged on the outer circumference of the rotating shaft 9. each mounting hole 1 of each mounting plate portion 13.
Bolt 2 is inserted into the communication hole of flange 10 that communicates from 4 to this.
6 and protrudes inward from the flange 10.
Tighten the nuts. As a result, the pair of disks 11
At the same time, a substantially triangular shape is formed on the adjacent outer periphery of each disk plate 12 forming this disk 11 between the rear end in the rotational direction of the outer linear plate-like portion 22 and the arcuate edge 19. Four portions 28 of the shape are formed.

Next, an output shaft 29 is rotatably mounted horizontally at the rear lower part of the horizontal portion 7 of the mission case 2.
The inner end of the rotating shaft 31 of the disc cultivating body 30 is rotatably connected to both ends of the rotary shaft 31 of the disc cultivating body 30 via a universal joint, and the outer end of the rotating shaft 31 of the disc cultivating body 30 on both sides is connected via a bearing body 32. The upper part of the hanging support 33 is connected to a support frame 34 which extends horizontally from both sides of the vertical part 3 of the mission case 2 to the outer rear part thereof.

Further, the rotary shaft 31 of the disc cultivating body 30 has a plurality of curved disc-shaped discs 3 for continuously tilling and reversing the tilled soil.
5 are integrally fixed to the rotating shaft 31 via flanges 36 provided at predetermined intervals in the axial direction. Each disk 35 fixed to the rotating shaft 31 has an annular bearing portion 38 in which an insertion hole 37 through which the rotating shaft 31 is inserted is formed in the center.
and a bearing portion 38 having this insertion hole 37.
A soil guiding portion 40 is continuously formed on the outer periphery of the soil guiding portion 40 which expands in an arc shape and is curved through the mounting plate portion 39 that overlaps with the flange 36. A cutting and raising blade 41 is formed, and a plurality of earth pushing pieces 42 in the shape of a parallel plate are cut and raised at predetermined intervals on the soil guide portion 40 and protrude sequentially inward from the rear side in the direction of rotation. It is formed. Therefore, the plurality of earth pushing pieces 42 have an arcuate U-shaped cut i & 43 centered on the insertion hole 31 at a substantially intermediate portion between the bearing portion 38 and the cutting blade 41.
The connecting part 44, which is cut up from the ground and connected to the soil guiding part 40, gradually curves into an arc as it reaches the rear part in the rotation direction, and is formed to protrude inwardly from the rust guiding surface part of the soil guiding part 140. .

Then, the mounting plate portions 39 of the disk 35 are respectively engaged with the respective flanges 36 of the rotating shaft 31, and the mounting base portions 39
and the flange 36 are connected and fixed with a plurality of bolts and puts 45.

Next, the output shaft 29 that rotates the rotation shaft 9 of the pair of disks 11 for residual tillage processing and the rotation shaft 31 of the disk tillage body 30 is connected to the input shaft 5 via an interlocking medium provided in the mission case 2. is linked to.

In the figure, reference numeral 46 denotes a grounding wheel that is horizontally suspended so as to be freely rotatable, 41 is an adjustment arm that adjusts the rotation of the support frame 34, 48 is a protective cover that covers the upper part of the disk 35, and 49 is a ring between the pair of disks 11. This is a tilling blade for processing leftover tillage.

In this structure, each connecting portion 6 of the machine frame 1 is connected to the suspension mechanism of the tractor, and the input shaft 5 is connected to the power take-off shaft portion of the tractor via the power transmission shaft. When the machine is towed by a tractor and the input shaft 5 is rotated in conjunction with the power of the tractor, the machine is advanced, and the power input from the input shaft 5 is used to move a pair of discs for processing residual tillage in front. 11 and each disk 35 of the disk cultivating body 30 on both rear sides are rotationally driven.

In the front pair of discs 11, the tilled soil is tilled into a bowl of a predetermined size by the outer edge blade part 18 and the outer part 16 of each disc plate 12.
This plowed soil is pushed in the reversal direction by the soil-repelling action of the soil-repelling plate portion 25, which is comprised of a plate-shaped portion 23 that protrudes inward from the curved surface of each disc plate 12 at its inner rear portion in the rotational direction. The lower part of the earth embankment that the soil-repellent plate part 25 contacts is reversed near the bottom, and the upper part is also promoted to be reversed, and the soil-repellent action of the soil-repellent plate part 25 is This causes cracks in the lengthwise direction of one ring, and the recesses 2 in the outer adjacent portions of each disk plate 12.
8 to prevent cracks from forming in the width direction of the soil, and therefore, the large soil that has been tilled is crushed into small pieces and processed by the disc tilling bodies 30 on both rear sides without being thrown outward. Not M within possible range
[He is thrown out of bed.

Furthermore, the uncultivated land on which the carrier is released by the pair of discs 11 is covered by each disc 3 of the disc cultivating bodies 30 on both sides.
The tillage is continuously reversed by 5. In this case, the soil cultivated by the pair of discs 11 at the front is crushed into small pieces and turned over, so that the soil cultivated by the pair of discs 11 at the front is crushed into small pieces and turned over.
Stability is good because the rotation shaft 31 of 0 is not pushed up by clods of earth.

Further, the cultivated soil is tilled as a bowl of a predetermined size by the cutting blades 41 on the outer periphery of each disk 35 provided in the rotation @ 31, and this plowed soil is continuous with the cutting blades 41. Furthermore, the earth embankment is guided in the reversal direction by the guiding product 40, and this earth embankment is forcibly pushed sequentially in the reversal direction by the soil repelling action of the plurality of earth pushing pieces 42 protruding inwardly from each disk 35. In addition, cracks are generated in the length direction of the raw burial by the soil repelling action of each soil pushing piece 42, so that one mouthful is not thrown outward to a large extent. It is ensured that it is turned over and, in connection with this turning action, the upper part is fractured to a size smaller than that plowed by the crack.

Next, in the embodiment described above, the plurality of earth pushing pieces 42 on each disk 35 of the disk cultivating body 30 are provided in a protruding manner approximately in the middle between the bearing portion 38 and the cutting edge 41. , the plurality of earth pushing pieces 42 are not limited to this, but the sixth
As shown in FIGS. 8 to 8, a zigzag-shaped kerf 43 communicating with the cutting edge 41 may be formed by cutting and raising the outer peripheral edge at a predetermined interval in the same direction. Furthermore, the ninth
As shown in FIGS. 11 to 11, the plurality of earth pushing pieces 42 are arranged at predetermined intervals at a substantially intermediate portion between the bearing portion 38 and the cutting edge 41 and at an outer peripheral edge communicating with the cutting edge 41. In addition, the outer and middle portions may be formed by cutting and raising them in the same direction so as to be located at the middle portions of each other.

Thereby, the green burial can be reliably plowed and reversed, and can also be crushed according to each soil pushing piece 42.

In the above embodiment, the disk having a plurality of earth moving pieces is
Although the case has been described in which they are attached to the rotating shafts of the disc cultivating bodies at the rear on both sides, the present invention is not limited to this, and they may be arranged in a V-shape in a plan view on the rotating shafts at the front for residual tillage processing.

(Effects of the Invention) According to the present invention, the upper part cut and raised by the cutting and raising blade is guided in the reverse direction by the guiding action of the soil guiding part, and a plurality of soil pushing pieces rotate in this soil guiding part. Since the rear side in the direction is projected inward in the reversing direction, the upper part is forcibly pushed by each of the earth pushing pieces, so that the upper part can be reliably reversed. In addition, since each earth pushing piece partially pushes the upper weir, it is possible to create cracks in this pushing part, and these cracks allow the upper tower to be reversed and crushed into a form smaller than the plowed size. . Roughly,
Since a series of cutting edges are formed on the outer peripheral edge of the disk and no recesses are formed, there is no chance of foreign matter becoming entangled in the outer peripheral edge of the disk.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a front view of a disc for a disc rotary, Fig. 2 is a sectional view taken along line A-A of the same, Fig. 3 is a perspective view of the same, and Fig. 4 is a front view of a disc for a disc rotary. 5 is a side view of the disc rotary, FIG. 5 is a plan view of the same as above, FIGS. 6 to 8 show other embodiments, FIG. 6 is a front view of the disc for the disc rotary, and FIG. 8 is a perspective view of the same as above, FIGS. 9 to 11 show still other embodiments, FIG. 9 is a front view of a disc for a disc rotary, and FIG. FIG. 11 is a sectional view taken along the line C--C of the same as above, and a perspective view of the same as above. 31...rotating shaft, 37...insertion hole, 40...soil guiding part,
41: Cutting blade, 42: Earth pushing piece. Invented on May 25, 1985 Name: Kazu Nishio
Patent applicant: Matsuyama Co., Ltd. Company A. Introduction f♂, ¥2 Hijo 9 field

Claims (1)

[Claims] (1) An insertion hole is formed in the center through which the rotating shaft is inserted, and a soil guiding part is formed on the outer periphery from this insertion hole to expand and slope in an arc, and a cutting edge is provided on the outer periphery of this soil guiding part. 1. A disk for a disk rotary, characterized in that a plurality of soil pushing pieces are formed on the soil guide portion by cutting and raising at predetermined intervals a plurality of soil pushing pieces that sequentially protrude inward on the rear side in the rotational direction.