JP2002034303A - Rotary implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispose snail-killing tines for improving the physically snail-killing effect of working tines against Pomacea canaliculata Lamarck on the rotary tilling and puddling works of a rotary implement. SOLUTION: This rotary implement in which many working tines 5 are radially mounted on a rotary shaft 4 extended in the horizontal direction and which is used for tilling and puddling works, characterized by (1) disposing on the rotary shaft 4 the straight blade-like snail-killing blades 7 which are projected on the rotary shaft 4 between the many working tines and are brought into contact with Pomacea canaliculata Lamarck within the revolution ranges to strike and fill the Pomacea canaliculata Lamarck, when the rotary shaft 4 is rotated to revolve and operate the working tines, (2) attaching the snail- killing tines 7 to the rotary shaft 4 in parallel to the surface of the revolution in spaces between the working tines 5 and the working tines 5 in a spiral arrangement in the rotation direction or in a uniform arrangement, and (3) approximately equalizing the lengths of the snail-killing tines 7 to the length between the rotation center O of the rotary shaft 4 and the revolution outer circumference of the working tines 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary tillage
TECHNICAL FIELD The present invention relates to a rotary working machine having a rotary axle and a claws mounted between the working claws on a rotary shaft in order to improve an effect of physically killing the apple snail by a rotary work claw when performing a substituting work.

[0002]

2. Description of the Related Art Sumi apple snails (commonly known as jumbo snails) inhabit paddy fields, waterways, and the like.
Alternatively, it directly damages young rice seedlings immediately after emergence by direct sowing, causing enormous damage. In order to prevent this damage, physical (mechanical) and chemical (pesticide) killing methods and extermination methods are being studied. However, to date, effective farming techniques have scarcely spread.

[0003]

2. Description of the Related Art There is known a rotary working machine in which a large number of working claws are mounted in a radial direction on a circumference of a rotary shaft extending in a horizontal direction to perform tilling and substituting work.
When performing tillage and substituting work with this rotary work machine, a number of high-speed rotating work claws hit the apple snail and kill it, but the work speed, tillage depth,
Effective tilling and scraping work conditions for soil conditions, etc. are selected. However, when a normal rotary working machine is used, there has been a problem that a large amount of time for tillage and scraping work is required to achieve a sufficient shelling effect.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a straight-edged shell killing claw is provided between a large number of working claws, so that when the rotary shaft rotates and the working claws work. ,
It is an object of the present invention to provide a rotary working machine that is capable of hitting a shell apple snail in a rotation range to kill shellfish.

[0005]

In order to achieve the above object, the present invention provides: In a rotary working machine that performs a plowing and substituting work by attaching a large number of working claws in a radial direction to an axis circumference of a rotary shaft extending in a horizontal direction, protruding between a large number of working claws on an axis circumference of the rotary shaft, When the rotary claw is rotated and the work claw is working, a straight blade-shaped clam is provided which comes into contact with the apple snail in the rotation range to strike and kill the clam.

B. The shell claws are mounted in a spiral arrangement or in a uniform arrangement in the rotation direction in a gap between the work claws, parallel to the rotation surface of the rotary shaft.

C. The length of the clamshell claw is substantially equal to the length from the center of rotation of the rotary shaft to the outer circumference of rotation of the work claw.

[0008]

With the above arrangement, the rotary working machine of the present invention performs the following operations. . Protruding between many working claws around the axis of the rotary shaft,
When the rotary shaft rotates and the work claws work, a straight-edged clam killing claw that contacts and hits the snail apple in the rotation range to provide shell killing during rotary plowing and substituting work The mussel killing rate of the apple snail is improved. The shell killer can be easily attached to an existing rotary working machine.

[0009] Shell-killing effect at the time of tilling and sub-plowing work by installing shell-killing claws parallel to the rotating surface of the rotary shaft, in the gap between working claws and in a spiral arrangement in the direction of rotation, or evenly arranged Tall, which was done with the existing rotary work machine, spent a lot of time, and also reduced the tillage / plowing pitch (lower tillage / plowing speed).
The working time is reduced compared to the scratching method.

[0010] By making the length of the clamshell claw almost equal to the length from the center of rotation of the rotary shaft to the outer circumference of rotation of the work claw, even with the conventional rotary work machine, simply increasing the number of work claws improves the shellfish killing effect However, the torque required for the tillage and substitute work increases, but in the present invention, the shell killing effect is improved without substantially increasing the drive torque of the rotary working machine.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a rotary working machine according to the present invention will be described below in detail with reference to the drawings. In FIG. 1 to FIG. 4, reference numeral 1 is connected to a rear part of an agricultural tractor (not shown) via a three-point link hitch mechanism so as to be able to move up and down.
It is a rotary work machine that performs a substitute work. The rotary working machine 1 supports a rotary shaft 4 extending in the horizontal direction between a vertically-oriented transmission case 2 and a support frame 3 in the same manner as a conventionally known rotary working machine. This rotary shaft 4
A large number of working claws 5 are mounted radially around the shaft via a mounting box 6, and are introduced into a paddy field for tilling and substituting work.

The work claw 5 is shown in FIG. 1 as being used for tilling work by mounting a tilling claw on the rotary shaft 4.
It can also be used as a substitute work machine. In the present invention, when the rotary shaft 4 is rotated around the shaft of the rotary shaft 4 so as to protrude between the plurality of work claws 5 and the work claw 5 performs plowing or substituting work, the rotation range is limited. A straight-edge-shaped shell killing claw 7 is provided via a mounting box 8 so as to be in contact with the shell apple snail to be hit and kill the shell. The shell claws 7 may be attached using the attachment box 6 of the working nail 5.

As shown in FIG. 2, the clam 7 is a flat plate having a thin and long rectangular shape, into which a base having a mounting hole 7a provided in a mounting box 8 is inserted.
The bolt is inserted through the nut and tightened with a nut. Further, as shown in FIG. 3 and FIG.
The work claw 5 and the work claw 5 are arranged in parallel with the rotation surface of the rotary shaft 4.
Are provided in a spiral arrangement in the rotational direction. Alternatively, when the working claws 5 are evenly arranged,
It is provided in a uniform arrangement. Thus, the work claw 5 and the work claw 5
The length of the clam 7 provided in the gap of the rotary shaft 4
The length from the rotation center O to the outer circumference of rotation of the work claw 5, that is, the radius of rotation of the work claw 5 is substantially equal.

The rotary working machine 1 configured as described above
In, it is set on the tractor and introduced into the field,
Tilling or substituting work is performed while rotating the rotary shaft 4 in a predetermined direction. The work claw 5 plows or substitutes the soil, and at the same time, strikes the apple snail in its rotation range to kill the shellfish. The claws 7 attached to the gap between the work claws 5 are mainly composed of the work claws 5 and the work claws 5.
Of the rotary apple machine existing in the rotary working machine 1 is increased. Due to the shape and arrangement of the shell killing claws 7, the increase in the rotational torque of the entire rotary working machine 1 is small.

FIGS. 5 and 6 are graphs comparing the killing rates of the apple snail when working using the rotary working machine 1 according to the present invention and a conventional standard rotary.
Fig. 5 shows a case where the work was performed under hard soil conditions, and Fig. 6 shows a case where the work was performed under soft soil conditions. The shell height (small apple shell = the height of the shell of the shell) was compared for each of the large, medium and small shells. The killing rate is shown. Under hard soil conditions, a 10-15% increase in the killing effect was observed at each shell height. In soft soil conditions, each shell height is 7-17.
% Increase in the killing effect was observed.

The shell claws 7 of the present invention have the following advantages in addition to the improvement of the shell killing effect of the apple snail at the time of rotary plowing and scraping. . It can be attached to a commercially available (existing) rotary working machine. . High shell killing effect during tillage and scraping work. Therefore, the time required for tilling and wiping work is reduced by the time required for tilling and wiping work to reduce the tilling and wiping pitch (slowing tilling and wiping speed), which was done with the existing rotary work machine. Can be shortened. . Simply increasing the number of tilling and slashing claws increases the killing effect, but increases the torque required for tilling and slashing. In the present invention, the shell killing effect can be improved without substantially increasing the driving torque of the rotary working machine. . It is cheap.

[0017]

According to the rotary working machine 1 having the clam 7 of the present invention, the following functions and effects can be obtained by having the constitutions of claims 1 to 3.

Around the rotary shaft, a large number of working claws protrude between the plurality of working claws. When the rotary shaft rotates and the working claws work, they come into contact with a snail apple in the rotation range to strike and kill the snail. The provision of the blade-shaped shell-killing claws can improve the shell-killing rate of the apple snail at the time of rotary tilling and substituting work. It is easy to attach the claws to existing rotary working machines, versatile and inexpensive.

Since the shell killing claws are positioned in the gap between the working claws in a spiral arrangement or in a uniform arrangement in the direction of rotation in parallel with the rotation surface of the rotary shaft, the claws are used for plowing and substituting work. For the tilling and sowing work method, which increases the shell killing effect and spends a lot of time using the existing rotary work machine, and also reduces the tilling and sowing pitch (lower tilling and sowing speed) Thus, working time can be reduced.

Since the length of the claws is substantially equal to the length from the center of rotation of the rotary shaft to the outer periphery of the rotation of the work claws, even if the number of the work claws is simply increased even in the conventional rotary work machine, the shell kill effect is improved. Is improved, but the torque required for tillage and substitute work is increased, but in the present invention, the shell killing effect can be improved with almost no increase in the drive torque of the rotary working machine. .

[Brief description of the drawings]

FIG. 1 is a partial perspective view of a rotary working machine according to the present invention.

FIG. 2 is a perspective view of a shell killing claw.

FIG. 3 is a front view of a deformed rotary working machine according to the present invention.

FIG. 4 is a side view of the same.

FIG. 5 is a graph showing a comparison of shell kill rates when working with hard soil conditions using a rotary working machine according to the present invention and a standard rotary.

FIG. 6 is a graph comparing the killing rates of shells when working under the same soft soil conditions.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotary working machine 2 Transmission case 3 Support frame 4 Rotary shaft O Rotation center 5 Working claw 6 Working claw mounting box 7 Shell killing claw 7a Mounting hole 8 Shell killing claw attachment box

Continuation of the front page (72) Inventor Teruyuki Miike 442 Minamimachi, Kurume-shi, Fukuoka 2-608 Minamizaki Housing F-term (reference) 2B033 AA05 AB01 AB11 AC05 BA02 BA03 BA04 BB02 BB06 BB08 BC04 BC11 2B121 AA06 BA58 EA26 FA20

Claims (3)

[Claims] 1. A rotary working machine for tilling and substituting work by attaching a large number of working claws in a radial direction to an axis circumference of a rotary shaft extending in a horizontal direction. Protruding between the nails,
A rotary working machine characterized in that when a rotary shaft is rotated and a working claw is working, a straight blade-shaped clam is provided which contacts and hits the snail in the rotation range to kill the shell. 2. The method according to claim 1, wherein the shell killing claws are disposed in a gap between the working claws in a spiral arrangement or in a uniform arrangement in a rotation direction, in parallel with the rotation surface of the rotary shaft. Item 4. The rotary working machine according to Item 1. 3. The rotary working machine according to claim 1, wherein the length of the clamshell claw is substantially equal to the length from the center of rotation of the rotary shaft to the outer circumference of rotation of the work claw.