JPH08322301A - Disc plow - Google Patents

Abstract

PURPOSE: To provide a disc plow having extremely improved workability, capable of dealing with various mulch operation. CONSTITUTION: This disc plow comprises a main body frame constituting a connecting part to be inserted into a three-point link mechanism of a tractor, plowing/reverse disc plows 6 rotatably supported on shafts through outriggers 4 at both end parts of the main body frame 1 and a cutting disc plow rotatably supported on a shaft at the central lower part of the main body frame 1. Plural connecting holes are bored through connecting frames 10 extended at both sides of the main body frame 1 and fitting width of the plowing/reverse disc plows 6 can be varied. Circular arc-like long holes are bored through fitting frames 5, the inclination angle of the plowing/reverse disc plows 6 from a tilling surface can be variably adjusted. Circular arc-like long holes are bored through top flange parts 17 of brackets. The inclination angle of the plowing/reverse discs 6 from the advance direction of the disc plows can be changed. The height of the cutting disc plow from the surface of cultivated land can be adjusted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk plow for cutting a multi-sheet covered over the entire surface of a ridge while simultaneously digging the ridge.

[0002]

2. Description of the Related Art Conventionally, plows and disc plows or disc halos have been widely known as towing type working machines for plowing or crushing soil. A disk plow is pulled by a tractor and digs up the soil to invert it. It is said that the soil has a good reversal property but poor crushing performance. On the other hand, Suki (Wasuki) was developed in Japan, where the plot is small, and although soil inversion is somewhat inferior, it can be handled with small horsepower and has good crushability. These plows and plows have single-use plows that flip the soil to one side only, and dual-use plows that can be moved to the other side by moving the spatula. In addition, each has a one-step plow with a spatula and a two-step plow which has a sub-plow diagonally in front of the main plow and raises the soil in two upper and lower stages to improve the inversion and crushing of the soil. On the other hand, as a towing type working machine for crushing and leveling, a disk halo that rotates a disk to crush soil, a blade wheel crusher that rotates a blade wheel, a tooth halo with many teeth planted, mainly soil There is a rake to smooth out. However, these tow type working machines are for directly plowing or crushing soil, and when the surface of the soil or ridge is covered with multi-sheet, it is necessary to remove it first. is there. However, a working machine capable of cutting the multi-sheet covered over the entire surface of the ridge and simultaneously digging up the ridge covering both side surfaces of the multi-sheet has not been put into practical use until now.

[0003]

[Problems to be Solved by the Invention] Tobacco, udo,
To cultivate asparagus, pepper, lettuce, etc., make a ridge in the field, cover the entire surface of the ridge with a multi-sheet made of vinyl etc., and cover it with soil along both sides. Is the general method. After harvesting these crops, it is necessary to cultivate and crush the field in order to grow the next crop, but the entire surface of the ridge remains covered with the multi-sheet. However, the soil of the ridges, which have been repeatedly exposed to wind and rain and sunlight during the growth of tobacco and the like, are firmly compacted, and both side portions of the multi-sheet are firmly fixed by the soil. If plowing or crushing soil is performed with a conventional disc plow or disc halo with the mulch sheet covered, the mulch sheet will be crushed together with the soil and mixed into the soil, and the soil quality will decrease. Adversely affect the cultivation of such crops. Therefore, it has been essential to peel the multi-sheet from the surface of the ridge before plowing and crushing soil. However, a working machine capable of mechanically peeling off the multi-sheet has not yet been put into practical use. For that purpose, I go out to a field under the scorching sun in midsummer and peel off the multi-sheet by human sea tactics, but it is a great deal to peel off the multi-sheet covered with a vast land area only by manpower. Not only was it labor intensive, but it was very heavy labor, and there was a strong demand for improvements to mechanization.

[0004]

In order to solve the above-mentioned problems, a disk plow according to the present invention comprises a main body frame which constitutes a connecting portion to be inserted into a three-point link mechanism of a tractor, and both end portions of the main body frame. Has a plowing / reversing disc plow rotatably supported via an outrigger,
A cutting disc plow is rotatably supported on the lower center of the body frame. In addition, a plurality of connecting holes are provided through the connecting frame stretched on both sides of the body frame, and the connecting position with the outrigger is made variable, so that the mounting width of the plowing / reversing disc plow can be adjusted. In addition, the mounting plate of the plowing / reversing disc plow is provided with an arcuate elongated hole so that the fastening position is variable, so that the inclination angle of the plowing / reversing disc plow with respect to the cultivated ground can be adjusted. In addition, the upper flange portion of the bracket connected to the lower surface of the outrigger has an arcuate elongated hole penetrating it through, and the fastening position is variable, so that the plowing / reversing disc plow and the inclination angle with respect to the disc plow traveling direction can be adjusted. Adjustable. Also, by making the mounting hole of the cutting disc plow mounting bracket an elongated hole and sliding the joining position with the bracket mounting plate up and down to make the mounting position variable, the height of the cutting disc plow and the cultivated ground can be adjusted. Adjustable. Further, a weight mounting portion is provided on the upper portion of the main body frame.

[0005]

The operation of the disk plow according to the present invention will be described in detail. Two pins at both ends of the three-point link mechanism of the tractor 30 and two left and right connecting bodies 3 provided at the front end of the main body frame 1 are attached by pins 31. Next, a blade provided on the outer periphery of the cutting disk plow 7 among the upper part of the three-point link mechanism, the connecting body 3 provided on the upper end of the front end of the main body frame 1, and the five mounting holes 28 penetrating. When the bolts and nuts are used to fasten the mounting hole 28 at the optimum position where the bottom part of the ridge cuts into the upper center of the ridge, the tractor 30 and the disc plow are connected.

Connection port 1 of outrigger 4 according to the ridge width
3 is fitted to the outer periphery of the connecting frame 10 stretched over the main body frame 1, and fits among the four connecting holes 11 penetrating each of the connecting frames 10 on the left and right sides, and the outrigger 4. Align the hole 12 penetrating the connection port 13 with
Connect with the outrigger pin 14. Next, the mounting plate 5
Loosen the bolts and nuts that secure the
While sliding the arcuate slot 32 provided on the upper part of the left and right while holding the inclination angle of the plowing / reversing disc plow 6 at a desired angle with respect to the cultivated ground,
Tighten the nut. As a result, the multi-sheet in the central portion of the upper surface of the ridge 44 is cut linearly along the traveling direction, and the soil on both sides of the ridge 44 can be simultaneously plowed and inverted.

When the engine of the tractor 30 is started and the tractor 30 is moved forward, the disc plow is pulled by the tractor 30, and therefore a force is exerted to move the disc plow forward. Along with this, three disc plows 6, 7
Is rotatably supported by the body frame 1 and each outrigger 4, and thus moves while rotating in the forward direction.
Since the disc plows 6 and 7 are formed in a corrugated shape and a blade is provided over the entire outer peripheral surface of the disc plows 6, the multi-sheet on the upper surface of the ridge 44 is continuously cut linearly by the cutting disc plows 7. . Further, since the cutting disc plow 7 is parallel to the disc plow moving direction and fixed to the center of the disc plow, it is possible to prevent the disc plow from meandering. The plowing / reversing disc plow 6 has an angle with the vertical plane including the traveling direction, and also has an angle with the plane perpendicular to the traveling direction, so that the soil on both sides of the ridge 44 is plowing / reversing. Continuously plowing and reversing with disc plows. As a result, the multi-sheet is dug up on the surface of the ridge while being divided into two parts on the left and right.

As a result, the farm worker can reduce the load on the human body as much as possible by lifting the end portion of the multi-seat and winding it up, and at the same time, the multi-seat can be easily and quickly removed from the ridges 44. Can be removed.

A weight 8 is provided on the upper portion of the main body frame.
Since the mounting portion 9 is provided, the weight of the weight 8 prevents the force of the tractor 30 from pulling the disc plow body from the cultivated soil surface due to the pulling force or the resistance of the soil. Workability can be secured.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments thereof. FIG. 1 is a front view of a disc plow of the present invention, FIG. 2 is a plan view, and FIG. 3 is a side view. In the figure,
Reference numeral 1 denotes a main body frame, and a connecting portion 2 for connecting to a three-point link mechanism of a tractor is stretched at a front end portion of the main body frame 1, and connecting bodies 3 are provided on both sides and an upper portion thereof. On both ends of the body frame 1, outriggers 4
Are attached symmetrically and expandable and contractible. Plowing on the lower surface of the outrigger 4 via a mounting plate 5.
A reversing disc plow 6 is rotatably connected, and a cutting disc plow 7 is provided at the lower center of the main body frame 1.
It is rotatably connected. Further, a mounting portion 9 for mounting the weight 8 for preventing the disc plow from rising is provided on the upper portion of the main body frame.

As shown in FIG. 4, two connecting frames 10 made of square pipes are stretched on both left and right sides at both ends of the main body frame 1, and on the center lines of the four connecting frames 10. Four connection holes 11 are formed so as to penetrate from the upper surface to the lower surface. The outrigger 4 is formed by using a square pipe so that it can be fitted to the outer peripheral surface of the end portion of the connection frame 10, and a hole 12 penetrating from the upper surface to the lower surface is provided near the connection port 13. The connection between the main body frame 1 and the outrigger-4 is performed by fitting the connection port 13 of the outrigger-4 onto the connection frame 10 so that the hole 12 and the connection hole 11 are aligned with each other, and then connected by the outrigger pin 14. Therefore, by changing the position of the connecting hole 11 of the connecting frame 10, the mounting width between the plowing / reversing disc plows on both sides can be adjusted appropriately.
In this embodiment, the minimum width is 600 mm and the maximum width is 900 mm.
mm. It is of course possible to set the minimum width to 600 mm or less or the maximum width to 900 mm or more, if necessary.

At the corner 15 on the opposite surface of the connection port 13 of the outrigger 4, a flange 16 having three mounting holes formed on the same circumference is fixed, and a boss 36 is fixed on the lower surface of the central part. To do. A bracket 18 provided with a mounting flange 17 having the same shape as the flange 16 is connected to the flange 16 using bolts and nuts. A hole 34 that fits into a boss 36 is formed at the center of the mounting flange 17, and the bracket 18
Are attached to the surface of the attachment flange 17 in a state of being inclined toward the center line side of the body frame 1. Therefore, the brackets 18 are connected symmetrically with respect to the center line of the main body frame 1. As shown in FIG. 5, the mounting flange 17 is provided with three arcuate elongated holes 33, and the mounting flange 17 is rotated around the boss 16 so that the fastening position can be changed. The reversing disc plow and the inclination angle with respect to the disc plow moving direction can be adjusted.

On the side surface of the bracket 18, a stud bolt 19 is fixed on the upper side and a mounting shaft 35 is fixed on the lower side in the vertical direction.
The mounting plate 5 is mounted on the stud bolt 19 and the mounting shaft 35 using nuts and bolts. As shown in FIG. 6, the mounting plate 5 has a substantially rectangular shape, and a mounting hole 21 having bosses on both sides is formed in the central portion of the mounting plate 5, and an arc-shaped elongated hole 32 is formed in the upper portion of the mounting plate 5. The mounting angle of the mounting plate 5 can be variably mounted on the plane of the flange 16 with the mounting hole 21 as the fulcrum. This allows the angle of the plowing / reversing disc plow 6 to be appropriately adjusted as shown by the dotted line in FIG. Two bearings 22 are attached to the lower part of the attachment plate 5, and a shaft 23 is inserted therein. The plowing / reversing disc plow 6 is rotatably attached to the tip of the shaft 23 by using bolts and nuts. The plowing / reversing disc plows 6 are attached so as to be symmetrical with respect to the central axis of the main body frame 1. Further, the plowing / reversing disc plow 6 has an angle with the vertical plane including the traveling direction and an angle with the plane perpendicular to the traveling direction.

A portal frame 25 is mounted on the connecting body 3 provided at the front end of the main body frame 1. Gate frame 2
A connecting fitting 37 is fixedly installed at the central portion of the upper part of 5. As for the connecting metal fittings, mounting plates 27 which are parallel to each other are vertically provided on the upper surface of the substrate 26,
Five mounting holes 28 are formed in the same position on the left and right sides on the center line in the longitudinal direction of each mounting plate 27. When the three-point link of the tractor is connected to the lowermost end of the mounting hole 28, the disk plow is connected horizontally, but the disk plow is connected to the upper mounting hole in a state in which the disk plow tilts forward.

As shown in FIG. 7, a bracket mounting plate 38 is fixed to the side of the gate frame 25. The bracket mounting plate 38 is provided with five screw holes 39 on the left and right in the vertical direction. A cutting disc plow mounting bracket 40 is fastened to the bracket mounting plate 38 with bolts and nuts. The cutting disc plow attachment bracket 40 is provided with elongated holes 41 on the left and right, and the joining position with the bracket attachment plate 38 is slid up and down to cut the disc plow attachment 7.
Height can be adjusted. Fit a bearing 42 to the lower end of the cutting disc plow mounting bracket 40,
The shaft 43 of the cutting disc plow 7 is rotatably inserted therein. When the cutting disc plow mounting bracket 40 is fastened at the lowest position, the distance X between the bottom surface of the blade of the cutting disc plow 7 and the bottom surface of the ridges 44 becomes the shortest, and conversely, when the cutting disc plow mounting bracket is at the highest position. When fastened, the distance X between the bottom surface of the blade of the cutting disc plow 7 and the bottom surface of the ridge 44 becomes the longest. Thereby, the position of the cutting disc plow 7 which is most suitable for the height of the ridge can be set.

A bottom plate 29 is fixedly provided on the upper portion of the main body frame 1, and side plates 45 are vertically provided on the four sides of the bottom plate 29, respectively.
The mounting portion 30 is formed. A lid 47, which can be opened and closed by a hinge 46, is provided on the mounting portion 30. The weight 8 is made of steel, and in this embodiment, four weights of 5 kg are attached. By mounting the weight 8, it is possible to prevent the disc plow being towed from rising above the cultivated ground, and it is possible to more reliably perform cultivated land / reversal and multi-sheet cutting work. Further, the weight 8 is not limited to the above, and it is possible to substitute an object having an appropriate weight, for example,
Tool boxes and tools, iron pieces, sandbags, etc. are conceivable, but preferably, if a tool box containing tools is always placed, desk plow angle adjustment, width adjustment, height adjustment or repair work etc. , It can be carried out at any time during the agricultural work, which improves work efficiency. Of course, it is also possible to work without mounting the weight 8.

[0017]

As described above, according to the present invention, the cutting work of the multi-seat, which has been conventionally performed only by hand, can be easily performed by connecting and pulling the disc plow according to the present invention to the tractor. Therefore, it is possible to provide a disc plow with extremely high workability and extremely high practicality. Further, the width between the disc plows and the height of the disc plows for cutting can be appropriately changed, so that various multi-work can be performed.

[Brief description of drawings]

FIG. 1 is a front view of a disc plow according to the present invention.

FIG. 2 is a plan view of a disc plow according to the present invention.

FIG. 3 is a side view showing a state in which the disc plow according to the present invention is connected to a tractor.

FIG. 4 is a conceptual diagram showing a connected state of a connecting frame and an outrigger.

FIG. 5 is a plan view of a mounting flange.

FIG. 6 is a conceptual diagram showing a procedure of a mounting angle of a plowing / reversing disc plow.

FIG. 7 is a conceptual diagram showing an attachment procedure of a cutting disc plow.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body frame 2 Connection part 3 Connection body 4 Outrigger-5 Mounting plate 6 Plowing / reversal disk plow 7 Cutting disk plow 8 Weight 9 Mounting part 10 Connection frame 11 Connection hole 12 Hole 13 Connection port 14 Outrigger pin 16 Flange 17 Attachment Flange 18 Bracket 22 Bearing 23 Shaft 25 Gate type frame 28 Mounting hole 30 Tractor 33 Arcuate slot 35 Mounting shaft 38 Bracket mounting plate 40 Cutting disc plow mounting bracket 44 Ridge 45 Side plate 47 Lid

Claims (6)

[Claims] 1. A main body frame that constitutes a connecting portion to be inserted into and attached to a three-point link mechanism of a tractor, and plowing / reversing disc plows are rotatably supported by both ends of the main body frame via outriggers. The disc plow is characterized in that a cutting disc plow is rotatably supported at the lower center of the body frame. 2. The mounting width of the plowing / reversing disc plow can be adjusted by penetrating a plurality of connecting holes in the connecting frame stretched on both sides of the main body frame and making the connecting position with the outrigger variable. The disc plow according to claim 1, wherein 3. An inclination angle of the plowing / reversing disc plow with respect to the cultivated ground can be adjusted by arranging an arc-shaped elongated hole in the mounting plate of the plowing / reversing disc plow so that the fastening position is variable. The disc plow according to claim 1 or 2, characterized in that 4. A plunge / reversal disc plow and an inclination with respect to a disc plow advancing direction are provided by forming an arcuate elongated hole through an upper flange portion of a bracket connected to a lower surface of an outrigger so that a fastening position is variable. The disc plow according to any one of claims 1 to 3, wherein the angle is adjustable. 5. The height of the cutting disc plow and the cultivated ground is increased by making the mounting hole of the cutting disc plow mounting bracket oblong and sliding the joint position with the bracket mounting plate up and down to make the mounting position variable. The disk plow according to any one of claims 1 to 4, which is adjustable. 6. The disk plow according to claim 1, further comprising a weight mounting portion provided on an upper portion of the main body frame.