JPH0468882B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a tillage device using disks, and more specifically, to a cultivation device using disks, more specifically, disks having a spherical curve are arranged at an appropriate Giyoung angle, and rotation of the disks is provided. The present invention relates to an improvement in a tillage device that is installed to perform tillage by cutting and inverting the soil through the soil.

Conventional technology Generally, in a tillage device using a disk, a rotating shaft is horizontally mounted at an appropriate gearing angle with respect to a center line along the traveling direction, and a gently curved surface is formed with respect to the rotating shaft. It is formed by mounting a plurality of spherical disks at regular intervals so that their concave surfaces are open in the direction of travel.
The tilling device is connected to the tractor body, and is provided so as to obtain the action of cutting and turning the soil, that is, the tilling action, by forcibly rotating each of the above-mentioned disks while being pulled by the tractor body. However, the conventional tillage device has problems in that it causes the following operational problems.

Problems to be Solved by the Invention In other words, the methods of towing a tillage device by a tractor include so-called hill towing (a mode of towing with both left and right wheels of the tractor body in contact with the uncultivated area), and furrow towing (a mode of towing with both left and right wheels of the tractor body being in contact with the uncultivated area). There is a work mode in which the wheels of the tiller are dropped onto the cultivated land and the two traction methods described above are selected and used depending on the work mode. Because it is connected to the tractor body in a solid state, it is not possible to freely select the traction mode as described above. If the tractor body is unable to run along the base of the soil, problems such as the inability to plow the soil will occur.

The present invention is an attempt to improve the conventional problems as described above, and the features of the present invention are that the rotary shaft is horizontally mounted at an arbitrary gearing angle, and the rotary shaft is By providing the shaft-mounted disk to be slidable along the gearing angle, the connecting position to the tractor body can be freely adjusted.

The means and operations for solving the above problems are as follows.

Means for Solving the Problems A bevel gearbox, a pair of front and rear support cylinders, and a threaded cylinder are attached to the main frame connected to the tractor body with appropriate gearing angles.

On the cultivating section side, a power transmission shaft formed in the shape of an angular shaft is slidably mounted horizontally with respect to the bevel gear box, and a pair of front and rear support rods are similarly slidably supported on both support cylinders.
A screw rod is screwed into the screw cylinder portion so as to be adjustable forward and backward.

Function The connection position to the tractor body can be arbitrarily adjusted along the width direction while the gearing angle is constant.

Specific embodiments of the present invention will be described below with reference to illustrative drawings.

Embodiment 1 is a four-wheeled tractor body, and 2 is a three-point link hitch that is connected to the rear of the tractor body 1 via a lift mechanism (not shown) so that it can be raised and lowered. Cultivation device 3 related to
A main body frame 4 is connected to the main body frame 4. The main body frame 4 has a pair of left and right brackets 1 for a pair of left and right connecting rods 5, 5 extending in the front-rear direction.
It is provided by attaching the bevel gear box 6 through the support tube 3 and attaching the pair of front and rear support cylinders 7A and 7B in parallel. More specifically, the support cylinder parts 7A and 7B are provided at an appropriate gearing angle with respect to the center line of the fuselage so as to extend from diagonally forward to diagonally rearward, and the front support cylinder part 7A is provided at an appropriate gearing angle to the rear support cylinder part 7A. It is provided so as to be at a lower position than the support cylinder part 7B. A pair of front and rear support rods 8A, 8B are fitted into both support tubes 7A, 7B so as to be able to move forward and backward along the Giyoung angle, and a chain case 9 is attached to one end of both support rods 8A, 8B, and a chain case 9 is attached to the other end of both support rods 8A, 8B. A side plate 10 is attached to each side facing downward. A rotating shaft 11 is horizontally suspended between the chain case 9 and the side plate 10 across the lower end thereof, and the rotating shaft 11 has a plurality of spherical plates with a gently curved surface. The disks 12 are mounted on shafts at regular intervals with their concave surfaces opened forward. Further, the bracket 13 that supports the bevel gear box 6 is provided with a threaded cylinder part 14 in parallel with the support rods 8A and 8B, and a threaded rod 15 is screwed into the threaded cylinder part 14 so as to be freely retractable. Both ends of the chain case 15 are rotatably supported by the chain case 9 and the side plate 10. A handle rod 16 is attached to one end of the screw rod 15 on the side plate side.

On the other hand, an input shaft 17 is rotatably supported on the bevel gear box 6 so as to face a PTO shaft provided on the tractor body 1 side, and a pair of bevel gears 18A and 18B are mounted on the input shaft 17.
The bevel gear box 16 also has the support rod 8.
When the output shaft 19 is mounted parallel to A and 8B,
The output shaft 19 has a hexagonal cross-sectional shape and is provided with a hollow portion 20, and a power transmission shaft 21, which also has a hexagonal cross-sectional shape, is fitted into the hollow portion 20 so as to be movable forward and backward. One end of the transmission shaft 21 is supported by the side plate 10, while the other end is provided so as to face inside the chain case 9. Although not shown, the other end of the transmission shaft 21 is provided so as to interlock with the rotating shaft 11 via a sprocket and a chain provided in the chain case 9. A small bevel gear 22 and a large bevel gear 23 are rotatably mounted on the output shaft 19, and the bevel gears 22 and 23 are provided to mesh with the bevel gears 18A and 18B, respectively. Also on the output shaft 19 is a shift gear 24 located between the bevel gears 22 and 23.
are spline-fitted and are provided so that they can be selectively engaged with the bevel gears 22 and 23 via the shift lever 25.

Next, its effect will be explained.

By driving the engine (not shown) mounted on the tractor body 1, the driving force is transmitted to the traveling mechanism to obtain the traveling action of the tractor body 1, while the driving force is transmitted from the PTO shaft to the bevel gear box 6 side. is transmitted to the input shaft 17 of
Bevel gear 1 selected by shift gear 24
It is transmitted to the output shaft 19 through the meshing between the bevel gear 8A and the large bevel gear 23 or the meshing between the bevel gear 18B and the small bevel gear 22. The driving force transmitted to the output shaft 19 is transmitted to the transmission shaft 2.
1. Transmitted to the rotating shaft 11 via the chain case 9, each disk 12 mounted on the rotating shaft 11 is forcibly rotated at a speed slightly faster than the traveling speed of the tractor body 1, and the rotation of the disk 12 The action of cutting and turning the soil, that is, the tilling action is obtained.

In addition, when the tilling device 3 is disconnected from the tractor body 1, the screw rod 1 is connected via the handle rod 16.
By rotating the threaded rod 5, the main body frame 4 is moved forward and backward along the Giyoung angle through the threaded engagement between the threaded rod 15 and the threaded tube portion 14, and more specifically, the connecting rod 5 is moved back and forth by the support rod 8A. , 8B, and the bevel gear box 6 can be moved back and forth along the transmission shaft 21. Then, with the main body frame 4 moved to an arbitrary position along the gearing angle in this way, the tractor body 1 is moved to a position corresponding to the main body frame 4.
By connecting the PTO shaft and input shaft 17,
The effect of changing the connection position of the tilling device 3 with respect to the tractor body 1 along the Guyang angle can be obtained. In addition to the above, the connection position to the tractor body 1 can be changed by moving the disc 12 side forward or backward by rotating the screw rod 15 while the tilling device 3 is lifted up via the lift mechanism. You can get it no matter what.

Effects of the Invention The present invention is constructed as described above, and includes:
As mentioned above, the tilling parts, which are arranged at an appropriate gearing angle, are attached to the main body frame connected to the tractor body so that they can move forward and backward along the gearing angle. It has now become possible to freely change the mounting position of the disc on the vehicle, and as a result, for example, hill towing and ditch towing can be selected as shown in Figs. 6 and 7, and tractor towing as shown in Fig. 8. This has made it possible to significantly expand the scope of work, such as cultivating the base of trees where it is impossible to drive the machine.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a tilling device using a disc according to the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a sectional view of the same side, and FIG. 4 is an enlarged sectional view of a bevel gear box.
FIG. 5 is a side sectional view of the transmission shaft, and FIGS. 6 to 8 are schematic explanatory views of the operating state. DESCRIPTION OF SYMBOLS 1... Tractor body, 2... Three-point link hitch, 3... Tilling device, 4... Main body frame, 5...
...Connection rod, 6...Bevel gearbox, 7A, 7
B...Support cylinder part, 8A, 8B...Support rod, 9...
Chain case, 10...Side plate, 11
...Rotating shaft, 12...Disk, 13...Bracket, 14...Threaded tube portion, 15...Screw rod, 16
...Handle rod, 17...Input shaft, 18A, 18
B...Bevel gear, 19...Output shaft, 20...Hollow part, 21...Transmission shaft, 22...Small bevel gear,
23...Large bevel gear, 24...Shift gear, 2
5...Shift lever.

Claims (1)

[Scope of Claims] 1. A main body frame connected to a tractor body, and a disk formed with a spherical curved surface with respect to a rotating shaft horizontally mounted at an appropriate gearing angle, with its concave surface diagonally forward. It consists of a cultivating section formed by supporting the axis so as to open toward the main frame, and a bevel gearbox, a pair of front and rear support tubes, and a threaded tube are attached to the main body frame side with appropriate gearing angles. On the tilling section side, a transmission shaft formed in the shape of an angular shaft is horizontally suspended so as to be slidable at an appropriate gearing angle with respect to the bevel gear box, and a pair of front and rear support rods are attached to both support cylinders. Similarly, a tillage device using a disc is slidably supported at an appropriate gearing angle, and a screw rod is screwed into a threaded cylinder part at an appropriate gearing angle so as to be movable forward and backward.