JPH0115729Y2 - - Google Patents

Description

[Detailed explanation of the invention] Industrial application field This invention is useful for cultivating fields extremely deeply,
Or it relates to a device for draining water from the surface of a field.

Problems to be solved by the prior art and the invention: The digging body 6 or this and the trenching body 7 (also called a bullet).
A blade body 5 having a blade body 5 which is placed in the ground and towed has been used in Western countries for a long time. This requires significant traction and requires a heavy tractor. With such a heavy tractor, the tires harden the field and immediately form a plow, which requires core soil crushing after a while.

In addition, in Japan, where there are many paddy fields, heavy tractors are not suitable, and so-called lightweight high-output tractors that rely on the output of the prime mover are used instead of relying on the traction force that requires weight.

For this reason, the above-mentioned excavating body 6 has also progressed to a power chisel system that generates vibrations using the power of a prime mover.

This invention relates to an improvement of this power chisel, that is, a vibrating subsoiler.

In other words, when a drainage ditch is made through a vibrating subsoiler in a field or core soil is crushed, the excavated body 6
A vertical groove is formed at the position where the blade 5 supporting the blade passes, and the left and right walls of this groove bulge upward.
This acts as a barrier and prevents water on the surface of the field from flowing into the groove.

As a solution to this problem,
As shown in Publication No. 62902, it has been proposed to use a rotor to finish the blade after the blade 5 has passed, but this does not change the positional relationship between the digging body 6 and the lower end of the rotor. Therefore, it is not possible to slope the bottom of the trench through which the digging body 6 passes, so water on the surface of the field simply seeps into the trench.
Not flowing. Furthermore, the positional relationship cannot be changed depending on the crop.

In addition, as shown in Japanese Utility Model Application No. 52-165001, there is a device that changes the distance between the digging body 6 and the lower end of the rotor by adjusting the non-vibrating digging body 6 up and down. As mentioned above, this requires a large traction force, that is, a heavy tractor, and is not practical.

This invention cleverly uses the subsoiler frame 4, which is not found in the prior art, to improve the structure of the excavating body 6 and rotor 28 in the vibrating subsoiler.
The rotor 28 plows to a uniform depth, and the passage position of the excavating body 6 is provided with a step above and below, thereby successfully increasing the drainage effect significantly. . Furthermore, when this was used to make seeding beds, the positioning of burdock, carrots, radish, and other root vegetables could be adjusted according to their lengths, making it useful for different uses.

Means for solving the problem This invention uses the following technical means for this purpose. That is, the subsoiler frame 4 is connected to the rear of the power agricultural machine by a three-point link consisting of a lower link 1 and a top link 2 so as to be movable up and down, and an excavator 6 for digging underground is provided on the subsoiler frame 4. The rotor 28, which has a horizontal axis and which plows the topsoil, is located behind the blade body 5 that supports the digging body 6. Technical aspect of a vibrating subsoiler, characterized in that it is attached to the subsoiler frame 4 so as to move in the vertical direction and is provided at a position higher than the excavation body 6 so that the distance therebetween can be changed. composition.

In other words, for this vibrating subsoiler,
The rotor 28 moves up and down with respect to the subsoiler frame 4, and the positional relationship between it and the excavation body 6 changes, so the rotor 28 is moved up and down, and the subsoiler frame 4 is If the vertical movement is adjusted so that the movement returns to its original state, as a result, only the digging body 6 moves up and down while the rotor 28 tills and plows out the topsoil at the same depth. That will happen.

Effects of the invention This invention includes a subsoiler frame 4 that is towed by a power agricultural machine. An excavation body 6 that swings to create a drainage ditch in the soil or crush core soil, and a rotor that is located above the excavation body 6 and behind the blade body 5 that supports it and is adjusted up and down. Since the rotor 28 is provided with a rotor 28, it is possible to use a lightweight power agricultural machine (tractor) by creating a groove with no interruptions on both sides, with steps on the bottom of the groove, or with a rotor 28, depending on the crop. It has the feature that by changing the interval between the excavation bodies 6 and plowing, it is possible to create an effective crop bed.

Embodiment Next, the vibrating subsoiler of this invention will be explained based on the attached drawings. As shown in Figs. A mast 3 is supported by a three-point link consisting of left and right lower links 1, 1 and an upper top link 2, and the front part of a subsoiler frame 4 consisting of two plates is attached to the lower part of the mast 3. A digging body 6 having a rear upward scooping surface is attached to the lower end of the long blade 5 made of a long thin plate body.
A bullet-shaped groove member 7 is inserted into the blade body 5 at the rear of the chain 8.
and the middle part of the swing arm 10 is pivotally connected to the subsoiler frame 4 by a horizontal fulcrum pin 9.
The upper part of the blade body 5 is fixed to the rear part of the swing arm 10. In addition, the input shaft 1 is attached to the subsoiler frame 4.
1 is supported by a bearing 12, and a spherical bushing 13 is fitted via a bearing to an eccentric portion 11a that is eccentric with respect to the axis of the input shaft 11, and the spherical bushing 13 is fitted to the front end of the swing arm 10. 14 and the spherical bushing 13, when the input shaft 11 is rotated, the swing plate 15 moves up and down together with the spherical bushing 13 and slides on the fitting surfaces of the spherical bushings 13 and 14, respectively. A swinging arm 10 is formed to swing and vibrate up and down around a fulcrum pin 9.

On the other hand, a gearbox 16 attached to the subsoiler frame 4 has a drive shaft 17 supported in parallel with the fulcrum pin 9, and a bevel gear mechanism (not shown) inside the gearbox 16 allows the input shaft 11 to support the drive shaft 17. They are connected so that they rotate. An intermediate shaft 19 is supported parallel to the drive shaft 17 at the rear of the left and right rotary support frames 18, 18, which are provided so as to be able to move up and down around the drive shaft 17. The upper part of the rotary chain case 21 is fixed to a hollow cylindrical shaft 20 which is fitted onto the outside of the rotary chain case 21. Further, the upper ends of the arms 22, 22 erected upward from the hollow cylindrical shaft 20 and the upper end of the mast 23 erected at the rear of the subsoiler frame 4 are pivotally connected by a link 24. A pin 26 is rotatably fitted into a bracket 25 protruding from the
, screw in the threaded portion 27a of the adjustment handle 27, and attach the tip of the adjustment handle 27 to the mast 23.
By pivoting the adjustment handle 27 to the lower part of the
When the rotary chain case 21 is rotated, the rotary chain case 21 rotates back and forth around the intermediate shaft 19 together with the bracket 25, so that the plowing depth of the rotor 28, which is pivotally supported at the bottom of the rotary chain case 21, can be changed and adjusted. It is formed to do so.

Further, the rotation of the drive shaft 17 is controlled by a counter chain case 29 fitted around the drive shaft 17 and the intermediate shaft 19.
The rotor 28 is transmitted to the intermediate shaft 19 via a drive chain mechanism inside the rotary chain case 21, and is further configured to rotate a rotor 28 which is pivotally supported behind the blade body 5 by a drive chain mechanism inside the rotary chain case 21. There is.

Next, in another embodiment shown in FIG. 4, a swinging arm 10 attached to the upper part of the blade body 5 swings back and forth around a fulcrum pin 9 by a swinging mechanism similar to that shown in FIG. I try to make it vibrate, but
Gearbox 1 attached to subsoiler frame 4
6, the upper part of the rotary chain case 30 is directly fitted so that it can rotate with respect to the drive shaft 17,
An arc-shaped adjustment plate 31 is attached to the side surface of the middle part of the rotary chain case 30, and the adjustment plate 31 has mounting bolt holes 31a drilled in the mounting bolt holes of the bracket 32 provided at the rear of the subsoiler frame 4. By selecting and matching one of the
The plowing depth of the rotor 28 that is pivotally supported at the bottom of the rotary chain case 30 is the rotary chain case 3.
The mounting bolt 33 inserted into one of the mounting bolt holes 31a is inserted into the bracket 32.
The structure is such that the rotary chain case 30 can be fixed by screwing into the rotary chain case 30.

Since this device is configured as described above, when the PTO shaft of the power agricultural machine is rotationally driven, the universal joint shaft 34 connected to the PTO shaft rotates the input shaft 11, and the eccentric portion 11a rotates as the swing plate. 15 is moved up and down together with the swing arm 10, and the blade body 5 swings and vibrates back and forth around the fulcrum pin 9.

At the same time, the rotation of the input shaft 11 drives the bevel gear mechanism in the gear box 16 and the drive chain mechanisms installed in each of the counter chain case 29 and the rotary chain case 21, causing the rotor 28 to rotate. Become.

As mentioned above, the blade body 5 and the digging body 6, which vibrate in small increments in the front and rear directions, crush the hardened plowing soil with little resistance, causing many cracks to occur in the diagonal direction, and creating trenches. Create a culvert 35 after body 7 passes through. On the other hand, since the rotor 28 plows near the ground surface, it removes the mounds of soil on the left and right sides caused by the passage of the blade 5, and finishes it flat.

When this invention is used in a vibrating subsoiler that has the function of a discharge device, the rotor 2 can be moved continuously or in stages while working in this way.
8, the subsoiler frame 4 is raised and lowered to keep the lower surface of the rotor 28 horizontal. Then,
Although the plowing depth of the rotor 28 remains the same, the underdrain is inclined and water is effectively discharged.

In Fig. 1, Fig. 2, and Fig. 3,
By rotating the adjustment handle 27, the rotary chain case 21 is rotated back and forth around the intermediate shaft 19 together with the bracket 25, and the vertical position of the rotor 28 is also changed to adjust the plowing depth. In the embodiment shown in FIG. 4, the vertical movement of the rotary chain case 30 around the drive shaft 17 can be adjusted by changing the screwing position of the mounting bolt 33. The plowing depth can be adjusted arbitrarily.

Therefore, the plowing depth can be selected and easily adjusted according to the soil quality near the topsoil in the field and the type of crops to be planted. Since the soil is crushed by the body 5 and the digging body 6 and has improved water permeability, cultivated soil suitable for growing crops can be obtained in one stroke of the subsoiler.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view showing one embodiment of the vibrating subsoiler of this invention, Fig. 2 is an enlarged side view of the main parts in Fig. 1, Fig. 3 is a plan view in Fig. 2, and Fig. 4 FIG. 2 is a side view showing another embodiment of the invention. Description of symbols, 1... Lower link, 2... Top link, 3... Mast, 4... Subsoiler frame, 5... Blade body, 6... Excavation body, 7... Grooving body,
8... Chain, 9... Fulcrum pin, 10... Swing arm, 11... Input shaft, 11a... Eccentric part, 12
... Bearing, 13, 14 ... Spherical bushing, 15 ...
Swing plate, 16...Gearbox, 17...
Drive shaft, 18... Rotary support frame, 19...
...Intermediate shaft, 20...Hollow cylindrical shaft, 21, 30...Rotary chain case, 22...Arm, 23...
Mast, 24...Link, 25, 32...Bracket, 26...Pin, 27...Adjustment handle, 2
7a...Threaded portion, 28...Rotor, 29...Counter chain case, 31...Adjustment plate, 31a...
Mounting bolt hole, 33...Mounting bolt, 34...Universal joint shaft, 35...Drain.

Claims (1)

[Scope of utility model registration request] A subsoiler frame 4 is connected to the rear of the power agricultural machine by a three-point link consisting of a lower link 1 and a top link 2 so as to be able to move up and down. The rotor 28, which has a horizontal axis and which plows the topsoil, is provided to swing around a fulcrum pin 9 extending horizontally in the direction of travel under the power of a prime mover. An excavating body 6 is attached to the subsoiler frame 4 so as to be located behind the body 5 and move in the vertical direction.
A vibrating subsoiler characterized by being provided so that the distance between the vibrating subsoiler and the oscillating subsoiler can be changed.