JP3010768U - Rotary tiller - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a rotary tiller with the same tilling speed as the conventional one, with the same tilling performance as the conventional one, and with the same horsepower requirements as before. To do. [Composition] While the cultivating speed is doubled, the number of rotations of the cultivating pawl shaft 2 is set to 150 to 470 / min, which is the same as the conventional one, and instead, a right plane or Two left facing nails of the same direction were arranged at a central angle of about 180 degrees about the plowing claw axis, and a gap T was arranged between the plowing claws facing each other from the left and right.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a technique for dramatically improving the tilling speed in a rotary tiller.

[0002]

[Prior art]

 The conventional rotary tiller has a rotation speed of the tiller shaft of 150 as described in "New Edition Agricultural Mechanics, Noboru Kawamura, Bunagaido Publishing Co., Ltd., October 30, 1993", pp. 106-107. The rotation speed was 470 / min, the working speed was 0.3 to 0.6 m / s, and the plowing pitch was 4 to 20 cm. As for the arrangement of the tilling claws, as shown in FIG. 3, on the outer circumference of the tilling claw shaft 12, one left or right tilling claw 13 was arranged on the same plane.

[0003]

[Problems to be solved by the device]

 However, the above-mentioned tilling speed of 0.3 to 0.6 m / s is about half the working speed of other combine agricultural machines such as combine harvesters and passenger rice transplanters. For them, the work speed becomes frustrating and outdated. Various studies have been made to improve the slow plow speed, but in the present invention, two nata claws in the same direction are arranged on one plane to rotate the plow claw shaft. Although it is the same as the conventional one, the speed is improved by doubling the speed and keeping the same tilling pitch, and the tilling accuracy is the same as the conventional tilling accuracy.

In addition, even if the number of rotations is the same, the required horsepower is increased by doubling the number of claws on one plane, which increases the tilling resistance and becomes a factor that hinders high-speed tillage. The idea is to reduce the required horsepower by this amount by forming a gap between the tips of the facing nails to prevent the nails from actively cutting, and by creating a gap in this portion, the speed is reduced. However, the required horsepower is the same even though it was doubled.

In addition, since residual plowing has occurred due to the formation of a gap at the tip of the nail, it does not mean that the plowing is completed, but the speed is high and the shape of the nail is elastic. By having a high degree of restoring force, the bending at the time of driving and the elastic restoring force after that crush the residual plowing part to eliminate residual plowing and enable complete high-speed plowing. is there.

[0006]

[Means for Solving the Problems]

 The problems to be solved by the invention are as described above, and the means for solving the problems will be described below. According to claim 1, at the mounting portion of the plowing pawl base portion to the plowing pawl shaft 2, the right-facing or left-facing flat claws are arranged on one plane orthogonal to the outer periphery of the plowing pawl shaft 2 and The center angle is set to 2 at an angle of about 180 degrees, and the plowing speed is twice as high as when one flat nail is placed on 1 plane, and the rotation number of the plowing nail shaft 2 is set to 1 plane. The rotation was 150 to 470 / min, which is almost the same as the case where one nata is arranged.

According to a second aspect of the present invention, in the mounting portion of the tilling claw base portion with respect to the tilling claw shaft 2, the right facing or leftward facing flat claw is provided on one plane orthogonal to the outer circumference of the tilling claw shaft 2. The center angle around the axis is arranged at two angles of about 180 degrees, and the cultivating speed is about 0.7 to 1 at a speed twice as fast as one flat nail is arranged on one plane. The rotation speed of the tilling claw shaft 2 was set to about 150 to 470 / min, which is substantially the same as the case where one flat claw is arranged on one plane.

According to a third aspect of the present invention, at the mounting portion of the tilling claw base portion to the tilling claw shaft 2, a rightward or leftward facing flat claw is provided on one plane orthogonal to the outer circumference of the tilling claw shaft 2. Two of them are arranged at an angle of about 180 degrees about the axis, and the plowing speed is twice as fast as when one nata claw is arranged on one plane. 6m / s, the number of rotations of the tillage claw shaft 2 is 150 to 470 / min, which is almost the same as the case where one nata claw is arranged on one plane, and the tilling pitch is one on each plane. Same as

According to a fourth aspect of the present invention, at the mounting portion of the tilling claw base portion to the tilling claw shaft 2, the right facing or left facing straight claw is provided on one plane orthogonal to the outer circumference of the tilling claw shaft 2, Two of them are arranged at an angle of about 180 degrees about the axis, and the plowing speed is twice as fast as when one nata claw is arranged on one plane. 6m / s, the rotation speed of the tiller claw shaft 2 is set to 150 to 470 / minute, which is almost the same as the case where one rata nail is arranged on one plane, and the tiller pitch is one rata nail on one plane. Same as when placed, four nails were arranged on the same plane, two nails facing in the left and right directions.

According to a fifth aspect of the present invention, at the mounting portion of the tillage claw base portion to the tillage claw shaft 2, the right facing or leftward facing flat claws are provided on one plane orthogonal to the outer circumference of the tilling claw shaft 2. Two center angles about the axis are arranged at an angle of about 180 degrees, and the plowing speed is twice as high as when one nata claw is arranged on one plane and about 0.7 to 1. 6m / s, the rotation speed of the tiller claw shaft 2 is set to 150 to 470 / minute, which is almost the same as the case where one rata nail is arranged on one plane, and the tiller pitch is one rata nail on one plane. Same as when placed, with four claws on the same plane, with two claws facing in both the left and right directions, and between the claws protruding from two adjacent planes, the locus of the claw tip does not overlap left and right. I set a gap.

According to the present invention, in the mounting portion of the tilling claw base portion to the tilling claw shaft 2, the right facing or leftward facing flat claws are provided on one plane orthogonal to the outer circumference of the tilling claw shaft 2. Two center angles about the axis are arranged at an angle of about 180 degrees, and the plowing speed is twice as high as when one nata claw is arranged on one plane and about 0.7 to 1. 6 m / s, the number of rotations of the plowing claw shaft 2 is set to 150 to 470 / min, which is almost the same as the case where one nata claw is arranged on one plane, and the plowing pitch is one nata claw on one plane. The same as when they are placed, and four nails are arranged on the same plane, two in each of the left and right directions, and while the nails protruding from two adjacent planes do not overlap the action of the trajectory of the nail tip. A gap was arranged and the gap was set to 10 to 50 mm.

[0012]

[Action]

 Next, the operation will be described. According to claim 1, since the plowing speed is set to be twice as high as the conventional plowing speed, the working speed can be almost the same as that of the combine harvester and the riding rice transplanter. It was possible to speed up the tilling work, which was bad.

According to the second aspect, the number of rotations of the tiller claw shaft 2 is the same 150 to 470 / min and the two tillers are arranged on the same plane, so that the tiller speed is doubled. Regardless, the number of rotations of the tilling claws 3 and 4 is the same as that of the conventional one, so that it is possible to increase the tilling speed without significantly increasing the horsepower required for the rotary tiller from the conventional horsepower required. .

According to the third aspect, only the same remaining plow portion S between the tilling pitches remains, and the remaining tillage under the tilling claws 3 and 4 can be made to have the same performance as the conventional performance.

According to the fourth aspect, since the two plowing pawls 3 and 4 and the plowing pawls 7 and 8 facing the right and left directions are arranged on the same plane, the residual plowing is provided between them. No longer occurs. Also, since four claw seats are concentrated on one plane, it is easy to automatically weld robots in manufacturing processes such as welding.

According to the fifth aspect of the present invention, although the number of rotations of the tiller shaft 2 is the same as the rotation of 150 to 470 / minute, two tiller jaws 3 and 4 are arranged in one plane. The required horsepower to be increased can be reduced by forming a gap T between the facing plowing jaws 3 and 4 and the plowing jaws 5 and 6, and the doubled plowing speed can be achieved with the same horsepower as the conventional one. You can get it.

According to the sixth aspect, since the gap T is formed between the tilling claws 3 and 4 and the tilling claws 5 and 6, it should be possible to leave tillage between them, but By setting the length to 10 to 50 mm, the plowing speed is doubled, and due to the vibration of the soil caused by the rotation of the plowing claws in the same direction by 3 and 4 rotations, the residual plowing part is crushed. As a result, it was possible to eliminate the residual plowing that would occur theoretically. As a result, it was possible to construct a rotary tiller that doubles the tilling speed, does not increase horsepower, and has better tilling performance than before.

[0018]

【Example】

 Next, examples will be described. FIG. 1 is a rear view showing the arrangement of a tilling claw formed by a tiller claw shaft 2 and a claw of a rotary tiller according to the present invention, and FIG. 2 is a right or left facing tiller claw 3, 4 on the same plane. FIG. 3 is a side view showing a configuration in which two center angles about the claw shaft are arranged at an angle of about 180 degrees. FIG. 3 shows a conventional configuration in which one right or left plowing claw 13 is arranged on the same plane. It is a side view.

As shown in FIG. 3, conventionally, on the outer circumference of the tiller claw shaft 12, only one left or right tiller claw 13 is arranged on the same plane. Although there was a case where another plowing claw in the other direction was arranged on the same plane, the technology in which two plowing claws 3 and 4 in the same direction are arranged on the same plane is There was none.

Since one tilling claw 13 is arranged on the same plane, the tilling speed has been determined so that the residual tillage portion S between the tilling pitches does not exceed a desired size. The tilling speed was set to 0.3 to 0.6 m / s. However, this speed was about half of the working speed of passenger rice transplanters and combine harvesters, and it was the slowest and inefficient working speed in the same paddy field farming work.

In order to make this speed twice as high as the high-speed tillage, if the rotation speed of the tillage claw shaft 12 is set to twice the normal rotation speed of 150 to 470 / min, Even if the tilling speed is doubled, the remaining tillage portion S between the tilling pitches becomes the same, and sufficient tilling performance can be obtained. However, doubling the number of rotations of the plowing claw shaft will increase the required horsepower to more than four times, and the horsepower of the tractor currently in use will not allow plowing.

In the present invention, in order to double the tilling speed without increasing the horsepower and leave the remaining tillage portion S between the tilling pitches as it is, in the same plane on the outer circumference of the tiller claw shaft 2, Two left or right facing claws are arranged at a central angle of about 180 degrees about the plowing claw axis. With this configuration, even if the plowing speed is doubled, since the plowing pawls 3 and 4 are arranged, as shown in FIG. 2, the plowing pawl shaft 2 has the same rotation speed and the plowing pitch P. Is 174 mm and the same plowing pitch P is used.

In the present invention, in order to offset the increasing required horsepower, a gap T is formed between the opposing plowing pawls 3 and 4 and the plowing pawls 5 and 6. In the past, as a matter of course, the gap T was set to 0 between the facing claws so as not to cause left and right tillage. In the present invention, the gap T is positively set to 10 to 50 mm. Due to the formation of this gap T, it is feared that residual tillage will occur between the left and right tilling claws 3 and 4 and the tilling claws 5 and 6, but in reality, the tilling speed is approximately 0. Due to the speed of 7 to 1.6 m / s and the rotation of two nata claws in the same direction on one plane, cracks occur in the remaining plowed part, and the bending force of the plow claws 3 and 4 also has a synergistic effect on this. Therefore, the residual plowed portion does not occur.

In addition, on one plane orthogonal to the outer circumference of the tiller claw shaft 2, two right-handed or left-handed straight claws are provided at a central angle of about 180 degrees about the tiller claw axis. By arranging them, as shown in FIG. 1, two leftward plowing jaws 3 and 4 and four rightward plowing nails 7 and 8 are arranged on one plane. The tilling claws 5 and 6 on the other plane and the tilling claws 3 and 4 face each other, but their angles are different from each other. Similarly, between the tilling claws 1 and 9 and the tilling claws 7 and 8 arranged on the other plane on the right side, they are also arranged at positions angularly different from each other. The gap T is generated between the rotation trajectories of the claws, and the gap T is not generated between the tips of the tilling claws 7 and 1 and the tilling claws 8 and 9. Reference numeral 10 denotes a tilling drive case that drives the tilling claw shaft 2.

[0025]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. As described in claim 1, in the mounting portion of the tilling claw base portion to the tilling claw shaft 2, the right facing or left facing straight claws are centered on the tilling claw shaft in one plane orthogonal to the outer circumference of the tilling claw shaft 2. The center angle is set to about 180 degrees, and two cultivating speeds are set to double the cultivating speed, which is twice as much as when arranging one nail on each plane. Since the rotation is 150 to 470 / min, which is substantially the same as the case where one nata claw is arranged, the cultivating speed can be doubled from the conventional cultivating speed. Moreover, since the working speed could be almost the same as that of the combine harvester and the riding rice transplanter, it was possible to speed up the tilling work, which was particularly poor in the work efficiency in the paddy work.

According to a second aspect of the present invention, at the mounting portion of the tilling claw base portion to the tilling claw shaft 2, the right facing or left facing claws having the same direction are provided on one plane orthogonal to the outer circumference of the tilling claw shaft 2. The center angle around the axis is about 180 degrees, and two of them are arranged at an angle of about 180 degrees, and the plowing speed is twice as fast as when one flat nail is arranged on one plane. It is set to 1.6 m / s, and the number of rotations of the plowing pawl shaft 2 is set to 150 to 470 / min, which is approximately the same as the case where one flat nail is arranged on one plane, and two plowing pawls are arranged on the same plane. Therefore, despite the cultivating speed doubled, the rotation speed of the plowing jaws 3 and 4 should be the same as the conventional one, and the horsepower required for the rotary tiller should be increased from the conventional horsepower so much. Instead, the plowing speed can be increased.

According to a third aspect of the present invention, at the mounting portion of the plowing pawl base portion to the plowing pawl shaft 2, a right-facing or left-facing flat pawl is provided on one plane orthogonal to the outer periphery of the plowing pawl shaft 2. Two of them are arranged with the center angle about the axis at an angle of about 180 degrees, and the plowing speed is twice as fast as when one nata claw is arranged on one plane, and about 0.7 to 1 6m / s, the number of rotations of the plowing claw shaft 2 is approximately the same as the case where one nata claw is arranged on one plane 150 to 470 / min, and the plowing pitch is arranged one on each plane Since the same as above, only the same remaining plow portion S between the tilling pitches remains, and the remaining tillage under the tilling claws 3 and 4 was able to have the same performance as the conventional one.

According to a fourth aspect of the present invention, at the mounting portion of the tillage claw base portion to the tillage claw shaft 2, the right facing or left facing straight claw is attached to one plane orthogonal to the outer circumference of the tilling claw shaft 2 by the tilling claw. Two of them are arranged with the center angle about the axis at an angle of about 180 degrees, and the plowing speed is twice as fast as when one nata claw is arranged on one plane, and about 0.7 to 1 6m / s, the number of rotations of the plowing claw shaft 2 is approximately the same as when arranging one nata claw on one plane 150 to 470 / min, and the plowing pitch is one nata claw on one plane. As the same as the case of arranging, the four claws are arranged on the same plane, two claws facing the left and right directions, so two claws 3 and 4 and two claws 7 facing the left and right directions are arranged.・ 8 and 8 are arranged on the same plane, and no residual tillage occurs between them. Further, since four claw seats are arranged on one plane in a concentrated manner, it becomes easy to automatically weld the manufacturing process such as welding by a robot.

According to a fifth aspect of the present invention, at the mounting portion of the tilling claw base portion to the tilling claw shaft 2, the right facing or left facing straight claws are provided on one plane orthogonal to the outer circumference of the tilling claw shaft 2 in the same direction. Two of them are arranged with the center angle about the axis at an angle of about 180 degrees, and the plowing speed is twice as fast as when one nata claw is arranged on one plane, and about 0.7 to 1 6m / s, the number of rotations of the plowing claw shaft 2 is approximately the same as when arranging one nata claw on one plane 150 to 470 / min, and the plowing pitch is one nata claw on one plane. The same as when arranging, the four claws are arranged on the same plane, with two claws facing in both the left and right directions, and a gap between the claws protruding from two adjacent planes where the tip loci of the claws do not overlap left and right. Since it has been arranged, it is related to the case where the tiller shaft 2 is rotated at the same speed as 150 to 470 / min. Instead, by arranging two plowing pawls 3 and 4 on one plane, the required horsepower that increases is formed as a gap T between the plowing pawls 3 and 4 and the plowing pawls 5 and 6 that face each other. By doing so, it is possible to obtain twice the tilling speed with the same horsepower as before.

According to a sixth aspect of the present invention, at the mounting portion of the tilling claw base portion to the tilling claw shaft 2, the right facing or left facing straight claws are provided on one plane orthogonal to the outer circumference of the tilling claw shaft 2 in the same direction. Two of them are arranged with the center angle about the axis at an angle of about 180 degrees, and the plowing speed is twice as fast as when one nata claw is arranged on one plane, and about 0.7 to 1 6m / s, the number of rotations of the plowing claw shaft 2 is approximately the same as when arranging one nata claw on one plane 150 to 470 / min, and the plowing pitch is one nata claw on one plane. The same as when arranging, the four claws are arranged on the same plane, with two claws facing in both the left and right directions. Between the claws protruding from two adjacent planes, the gap where the tip loci of the claws do not overlap left and right Is placed and the gap is set to 10 to 50 mm, so that it is placed between the plowing nails 3 and 4 and the plowing nails 5 and 6. Since the gap T is configured, it should be possible to leave tillage between the two. However, by setting the gap to 10 to 50 mm, the tilling speed is doubled, and the same direction on the same plane It was possible to eliminate the residual plowing that would theoretically occur due to the residual plowing part being crushed due to the vibration of the soil caused by the rotation of the plowing claws by three and four. As a result, it was possible to construct a rotary tiller that doubles the tilling speed, does not increase horsepower, and has better tilling performance than before.

[Brief description of drawings]

FIG. 1 is a rear view showing the arrangement of a plowing pawl constituted by a plowing pawl shaft 2 and a flat pawl of a rotary tilling device of the present invention.

[Fig. 2] The same direction of the tilling claw 3 facing right or left on the same plane.
-The side view which shows the structure which has arrange | positioned two center angles centering | focusing on the tillage nail axis | shaft 4 at an angle of about 180 degrees.

FIG. 3 is a side view showing a conventional configuration in which one right or left plowing claw 13 is arranged on the same plane.

[Explanation of symbols]

2 Cultivating claw shaft 1, 3, 4, 5, 6, 7, 8, 9 Cultivating claw composed of a ratchet 10 Cultivating drive case 12 Conventional plowing claw shaft 13 Conventional plowing claw

Front page continued (72) Inventor Osamu Nakagawa 1-32, Chayamachi, Kita-ku, Osaka, Osaka Prefecture Yanmar Agricultural Machinery Co., Ltd. (72) Inventor, Toko Takahashi 1-32-32 Chayamachi, Kita-ku, Osaka, Osaka Yanma Diesel Incorporated (72) Inventor Takashi Hirano 1-32, Chayamachi, Kita-ku, Osaka, Osaka Prefecture Yanmar Diesel Co., Ltd. (72) Inventor Masaru Yamamoto 1-1-1 Ishishiba, Matsumoto-shi, Nagano Ishikawajima Shibaura Machinery Co., Ltd. In the Matsumoto Factory (72) Inventor Mitsutoshi Miyazaki 1-1-1, Ishishiba, Matsumoto-shi, Nagano Ishikawajima Shibaura Machinery Co., Ltd. Matsumoto Factory (72) Inventor Tetsuya Takizawa 1-1-1, Ishishiba, Matsumoto-shi, Nagano Ishikawajima Shibaura Machinery Co., Ltd. Matsumoto factory

Claims (6)

[Scope of utility model registration request] 1. In a mounting portion of a tilling claw base portion to a tilling claw shaft 2, a flat claw having the same rightward or leftward direction is provided on one plane orthogonal to the outer circumference of the tilling claw shaft 2 with the tiller claw axis as a center. Place the center angles of two at an angle of approximately 180 degrees, and
The plowing speed is twice as high as when one flat nail is arranged on the plane, and the rotation speed of the plowing shaft 2 is approximately 150 to 470 / min, which is substantially the same as when one flat nail is arranged on one plane. A rotary tiller characterized by being rotated. 2. In the mounting portion of the tilling claw base portion to the tilling claw shaft 2, a flat claw having the same direction facing rightward or leftward in one plane orthogonal to the outer circumference of the tilling claw shaft 2 with the tiller claw shaft as the center. 2 when the center angle is set to two at an angle of about 180 degrees and the plowing speed is set to one flat nail per plane.
Double speed, approximately 0.7-1.6 m / s, plowing claw shaft 2
The rotary tillage device is characterized in that the number of rotations is about 150 to 470 / min, which is substantially the same as the case where one flat nail is arranged on one plane. 3. In a mounting portion of a tilling claw base portion to a tilling claw shaft 2, a rightward or leftward facing straight claw is centered around the tilling claw shaft on one plane orthogonal to the outer circumference of the tilling claw shaft 2. 2 when two center angles are arranged at an angle of about 180 degrees and one nata claw is arranged on one plane for the plowing speed.
Double speed, approximately 0.7-1.6 m / s, plowing claw shaft 2
The number of rotations is set to 150 to 470 / min, which is almost the same as the case where one nata claw is arranged on one plane, and the plowing pitch is the same as when one nata claw is arranged on one plane. A characteristic rotary tiller. 4. In the mounting portion of the tilling claw base to the tilling claw shaft 2, a flat claw with the same rightward or leftward direction is provided on one plane orthogonal to the outer circumference of the tilling claw shaft 2, with the tiller claw axis as the center. 2 when two center angles are arranged at an angle of about 180 degrees and one nata claw is arranged on one plane for the plowing speed.
Double speed, approximately 0.7-1.6 m / s, plowing claw shaft 2
The number of rotations is set to 150 to 470 / min, which is almost the same as the case where one nata claw is arranged on one plane, and the tilling pitch is the same as when one nata claw is arranged on one plane. A rotary tiller equipped with four claws, two for the left and two for the right. 5. In the mounting part of the tilling claw base to the tilling claw shaft 2, a flat claw facing the right or the left in the same plane on the outer circumference of the tilling claw shaft 2 at right angles or leftward, with the tiller claw axis as the center. 2 when two center angles are arranged at an angle of about 180 degrees and one nata claw is arranged on one plane for the plowing speed.
Double speed, approximately 0.7-1.6 m / s, plowing claw shaft 2
The number of rotations is set to 150 to 470 / min, which is almost the same as the case where one nata claw is arranged on one plane, and the tilling pitch is the same as when one nata claw is arranged on one plane. Place 4 claws on each of the 2 facing left and right,
A rotary tilling device, characterized in that a gap in which the loci of the tips of the nails do not overlap left and right is arranged between the nails protruding from two adjacent planes. 6. At the mounting portion of the tilling claw base portion to the tilling claw shaft 2, a rightward or leftward facing straight claw is centered around the tilling claw shaft in one plane orthogonal to the outer circumference of the tilling claw shaft 2. 2 when two center angles are arranged at an angle of about 180 degrees and one nata claw is arranged on one plane for the plowing speed.
Double speed, approximately 0.7-1.6 m / s, plowing claw shaft 2
The number of rotations is set to 150 to 470 / min, which is approximately the same as the case where one nata claw is arranged on one plane, and the tilling pitch is the same as when one nata claw is arranged on one plane. Place 4 claws on each of the 2 facing left and right,
A gap where the loci of the tips of the nails do not overlap left and right is arranged between the nails protruding from two adjacent planes, and the gap is 10 to 50 m.
A rotary tiller equipped with m.