JPS61271902A - 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 disc-shaped discs are arranged side by side on a rotating shaft is arranged on both sides, and no residual tillage is left 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 eight-shape shape when viewed from above and are rotatable, and the discs on both sides of the front plow the cultivated soil between the disc cultivating bodies on both sides. Some have a structure in which they are released along the surface onto uncultivated land on both sides.

[Problem that the invention seeks to solve]

In the above conventional configuration, the disk for processing residual tillage disposed at the front part is formed in a curved disk shape, so the soil plowed by this disk is large and covers the unpasted soil on both sides. Since the shoes are thrown wide, the rotating shafts of the disc cultivating bodies at the rear of both sides may ride on these shoes, and in such a case, the work of each disc of the disc cultivating body becomes unstable, and each disc becomes unstable. Therefore, there is a problem that it becomes difficult to plow and turn over the earthen embankment to a predetermined depth.

The present invention was developed in view of the above points, and it promotes the reversal of the physiology of plowing, prevents it from being thrown away to the side, and also makes it possible to crush soil embankments. The purpose is to

[Means for solving problems]

In the present invention, a plurality of curved disk plates formed in a substantially fan shape are arranged and fixed on the circumferential side of a rotating shaft via flanges so as to have a circular shape as a whole, and the plurality of disk plates are arranged and fixed at the rear in the rotational direction. An arc-shaped cut groove centered on the rotational axis is formed in the rotation direction, and a plate-shaped portion inside the cut groove is formed to gradually protrude inward from the curved surface of the disk plate at a predetermined inclination angle. It is something.

(Function) Since the present invention is configured as described above, when the rotary shaft is rotated, the cultivated soil is washed as a washing body of a predetermined size by the outer circumference of each disk plate arranged and fixed to the rotary shaft in a disk shape. As the soil is plowed, the tilled soil is pushed in the reversal direction by the soil repelling action of the plate-shaped portion that protrudes inward from the curved surface at the inner rear part of each disk plate in the rotating direction,
The lower part of the upper part that the plate-shaped part touches is inverted near the bottom, and the upper part is also promoted to invert accordingly, so that the upper part is not pushed outward too much. , it is crushed by the soil-repelling action of the plate-like part.

〔Example〕

Hereinafter, one embodiment 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 a generally oval shape when viewed from the side, and an input shaft 5 covered with a cover integral 4 at the front upper part of a vertical part 3 of the mission case 2. is projected toward the front. 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, a rotary shaft 9 is rotatably provided on both front sides of the horizontal portion 7 of the mission case 2 via a bearing body 8, and a pair of flanges 10 of the rotary shaft 9 on both sides are provided for processing residual tillage. The 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 consists of 1. A plurality of mounting holes 14 are formed in the mounting plate portion 13 that joins to the flange 10, and an engagement recess 15 that engages with the outer side of the rotating shaft 9 is provided at the base end of the mounting plate portion 13. It is formed. 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 and an outer edge in the rotational direction. A large arcuate edge 19 is formed at the intersection where it intersects with 18, and an arcuate groove 21 is formed in the rotational direction from the middle of the other side of the outer portion 16 to the rear edge 20. The groove 21 divides the rear part of the disk plate 12 in the rotational direction into an outer line plate-like part 22 and an inner plate-like part 23, and in this inner plate-like part 23,
The disk plate 1 is extruded in an arc shape toward the front side in the rotation direction.
A soil-repellent plate portion 25 is formed that gradually projects inward from the curved surface 24 of No. 2 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 of the 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 outward from the flange 10.
Tighten nut 21. As a result, a pair of disks 11 are constructed, and an outer l1l
A substantially triangular recess 28 is formed between the rear end of the 111J plate-shaped portion 22 in the rotational direction and the arcuate edge 19.

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 a bearing body 32 is connected to the outer end of the rotating shaft 31 of the disc cultivating body 30 on both sides.
The upper part of the suspension body 33 connected through the support frame 34 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. Further, a plurality of curved disc-shaped discs 35 for continuously tilling and reversing the tilled soil are integrally fixed to the rotary shaft 31 via flanges 36. Further, the rotating shaft 9 of the pair of discs 11 for processing the residual tillage and the disc cultivating body 3
The output i29 that rotates 0 rotation @31 is interlocked and connected to the input shaft 5 via a linkage medium provided in the mission case 2.

In the figure, numeral 37 is a rotatably horizontal grounding wheel, 38 is an adjustment arm that adjusts the rotation of the support frame 34, 39 is a protective cover that covers the upper part of the disk 35, and 40 is a ground ring between the pair of disks 11. This is a tilling blade for processing leftover tillage.

In the structure thus constructed, 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 output shaft portion of the tractor via a power transmission shaft. Then, when the machine is towed by a tractor and the input shaft 5 is rotated in conjunction with the power of the tractor,
As the machine advances, the power input from the input shaft 5 rotates the pair of discs 11 for processing residual tillage in the front and the discs 35 of the disc cultivating bodies 30 on both sides of the rear.

In the front pair of discs 11, the tilled soil is plowed as a washing body of a predetermined size by the outer part 16 of each disc plate 12, and the upper part of this plowed area is Pushed in the reversal direction by the soil-repelling action of the soil-repelling plate portion 25 consisting of the plate-shaped portion 23 protruding inwardly from the curved surface at the inner rear portion in the rotation direction,
The lower part of the raw burial that the soil-repellent plate part 25 touches 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 also causes the upper part to be reversed. cracks in the length direction and also in the width direction of the head by means of the recesses 28 at the outer-junction of each disk plate 12, so that the large plowed head is broken into smaller bowls. At the same time, the disc cultivating bodies 30 on both rear sides are
It is planted on uncultivated areas to the extent that it can be treated by

Further, the uncultivated land on which the bowls are 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 earthen embankment tilled by the front pair of discs 11 is crushed into small pieces and turned over, so the rotation shafts 31 of the disc tillers 30 on both rear sides are not pushed up by the upper head, resulting in stability. The soil glue can be plowed and inverted over a predetermined depth.

[Effects of the Invention] According to the present invention, the disk is constructed by arranging and fixing a plurality of curved disk plates in a circular shape, which are divided into approximately fan shapes, so that the disk can be easily formed into a desired shape. In the case of partial damage to the disk, it is only necessary to replace that part without replacing the entire disk, which is economical. In addition, by forming a plate-shaped part that protrudes inward from the curved surface of the disk plate through a groove at the rear part of each disk plate in the rotational direction, it promotes the reversal of plowed soil and causes it to move outward. It is possible to reliably prevent the soil W from being thrown into a large bowl, and also to reliably crush the soil W from the large washing body into small bowls. Therefore, it is suitable as an 80% disk, and post-work can be performed stably, smoothly and reliably.

[Brief explanation of the drawing]

The figures 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, and Fig. 3 is a perspective view of the disc plate of the above. FIG. 4 is a side view of the disc rotary, and FIG. 5 is a plan view of the same. 9...rotating shaft, 10...flange, 11...disk,
12... Disk plate, 21... Cut groove, 23... Inner plate-shaped portion, 24... Curved surface of the disk plate. Figure 1 Figure 2

Claims (1)

[Claims] (1) A plurality of curved disk plates formed in a substantially fan shape are arranged and fixed in a circular shape on the peripheral side of the rotating shaft via flanges, and the rear part of the plurality of disk plates in the rotation direction A disc for a disc rotary, characterized in that a plate-shaped portion inside the formed kerf protrudes inward from the curved surface of the disc plate.