JPS6357001B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tillage device, and more specifically, a method for cutting and turning soil by forcibly driving a rotor that is curved into a spherical shape with a gentle arc. This relates to the improvement of a tillage device that has been used to improve the tillage system, which enables flat, wide furrows to be obtained without the inverted soil rising up in the center, and which prevents straw, etc., from being entangled, and which allows the same straw to be inverted. The purpose is to make it possible to bury it inside.

One method of cultivating soil is to forcibly drive a rotor that is curved into a spherical shape with a gentle arc, and the soil is cut and turned over by the rotary drive of the rotor. was previously proposed by the applicant.

However, in the above proposal, since each rotor is provided with its rotation method slightly displaced from the center line in the direction of movement of the aircraft, the soil cut and reversed by each rotor is placed in the center of the aircraft. The problem is that the ridges tend to swell up, making it impossible to form flat, wide ridges.

The present invention is an attempt to improve the above-mentioned problems in order to solve the above-mentioned problems.A rotary claw is provided in the center of the machine body, and the soil in the center of the machine body can be moved in both left and right directions through the rotary drive of the rotary claw. The rotary claws are positioned in front of the rotor, and are oriented in the opposite direction to the rotational direction of the rotor. By rotating and driving the rotor, the soil in the center of the machine can be distributed to the left and right in front of the rotor, and it also prevents straw, etc. from wrapping around the rotary claw and its drive shaft, and reverses the straw, etc. The gist of this is that it can be buried in the soil. A feature of the present invention is that there is a gentle circular arc with respect to the rotation axis provided at the rear of the tractor body so as to extend diagonally outward and rearward at an appropriate angle from the center of the tractor body. In addition to mounting the rotors at regular intervals so that their concave surfaces face inward, the rotors are mounted in the center of the aircraft so that the soil at the center of the aircraft can be distributed in both left and right directions. The rotary pawl is provided in such a way that it is located forward of the rotor and rotates in the opposite direction to the rotational direction of the rotor.

Specific embodiments of the present invention will be described below with reference to illustrative drawings. 1 to 4 are drawings showing the first embodiment, in which 2 is connected to the rear of a tractor body (not shown) via a hydraulic mechanism (not shown) so that it can be raised and lowered. It is a three-point link hitch, and a cover frame 4 is connected to the three-point link hitch 2. The cover frame 4 is provided in a substantially V-shape so that its left and right ends protrude diagonally rearward, and a gear box 6 containing a pair of bevel gears 5 and 5' is fixed at an intermediate position of the cover frame 4. be done. The transmission shaft 7 that supports one of the bevel gears 5 and 5' is the PTO shaft (not shown) of the tractor body.
A sprocket 8A is mounted on a transmission shaft 7' which is connected to the bevel gear 5' and which supports the other bevel gear 5'. The gearbox 6 is integrally provided with a chain case 9 extending downward from the bottom thereof, and a transmission shaft 10A is installed at the lower end of the chain case 9 in the width direction of the machine body.

Further, the lower end portion of the chain case 9 is provided so as to bulge out toward the front. That is, the same chain case 9
has a portion (hereinafter referred to as "bulging portion 9'") that bulges forward in its lower end, and its overall shape is approximately L-shaped, and the bulging portion 9' has a One transmission shaft 10B is installed parallel to the transmission shaft 10A in the width direction of the fuselage. And the above sprocket 8A is attached to both transmission shafts 10A and 10B.
Sprockets 8B and 8C are mounted on shafts in correspondence with each other, and a chain 11 is stretched between each sprocket 8A, 8B and 8C. Further, in the same bulged portion 9', another transmission shaft 10C is located between the two transmission shafts 10A, 10B.
It will be constructed parallel to B. And the same transmission shaft 10
C is sprocket 8D mounted on the same transmission shaft 10C.
By engaging with the outer side of the chain 11, the transmission shafts 10A and 10B are provided so as to be able to rotate in opposite directions.

Rotating shafts 12, 12 are connected to both ends of the transmission shaft 10A via universal joints 16, 16. Both rotating shafts 12, 12 extend slightly diagonally rearward along the extending direction of the cover frame 4, and both ends thereof are supported by both ends of the cover frame 4. And both rotating shafts 12, 12
Rotors 13, 13 are mounted on shafts at regular intervals. The rotors 13, 13 are formed into a substantially plate-like shape with arc-shaped curved surfaces, as if a part of a sphere was cut out, and each rotor 13, 13 has both rotating shafts 1
2 and 12 so that the concave surfaces thereof face toward the center of the fuselage. Further, a rotary pawl 14 is provided on the transmission shaft 10C so as to be able to scatter the excavated soil in the left and right directions. Further, a residual tillage treatment claw 15 is fixedly installed at the bottom of the bulging portion 9'. FIGS. 5 to 7 are drawings showing other embodiments, which are provided so that the displacement angles of rotors 13, 13 mounted on rotating shafts 12, 12 can be arbitrarily adjusted. That is, the cover frame 4
are the base frames 4A, 4A fixed to the three-point link hitch 2.
A pair of left and right main frames 4B, 4B extend in both width directions so as to be freely rotatable in the front-back direction, and an angle adjustment plate 17 has a plurality of adjustment holes 17a, 17b, 17c at the tip thereof. is fixed. Further, from the base frame 4A, from a position near the rear end, the adjustment frame 4
C, 4C extend in both width directions, and the adjustment holes 17a, 17 are provided at the tips of the adjustment frames 4C, 4C.
Connecting holes (not shown) are provided in correspondence with the adjusting holes 17a, 17c, and the adjusting holes 17a, 17c, respectively.
Select any adjustment hole among 17b and 17c,
The adjusting hole is provided so as to be able to be connected to the connecting hole by a pin 19 with the adjusting hole aligned with the connecting hole.

On the other hand, at both ends of the cover frame 4, brackets 20, 20 are provided extending rearward, and at the rear ends of the brackets 20, 20, vertical shafts 21, 21 are provided, the mounting angle of which can be adjusted arbitrarily. The stabilizing shafts 22, 22 are freely rotatably mounted on the lower ends of the vertical shafts 21, 21. The stable shafts 22, 22 are composed of a blade 22a formed in a disk shape and a ground ring 22b formed in a cylindrical shape.
The blade 2b has a diameter smaller than that of the blade 22a, and is formed by being fixed concentrically to the inner surface of the blade 22a.

Next, its effect will be explained.

By driving the engine (not shown) mounted on the tractor body, the driving force is transmitted to the traveling mechanism and the traveling action of the tractor body is obtained. The signal is then transmitted to each transmission shaft 10A, 10B, and 10C. That is, a state is obtained in which the transmission shaft 10C rotates reversely (in the direction of arrow b) while both transmission shafts 10A and 10B rotate in the forward direction (in the direction of arrow a). The rotation of the transmission shaft 10A is further transmitted to each rotor 13, 13 via the universal joints 16, 16 and the rotating shafts 12, 12. and the above rotating shaft 1
By rotating the rotors 2 and 12 at a speed slightly faster than the traveling speed of the tractor body (approximately 3.5 times the traveling speed of the vehicle), a soil cutting action can be obtained through the action of the rotor 13 slipping against the soil. At the same time, the effect of reversing the soil thus cut through the arc-shaped curved surface of the rotor 13 can be continuously obtained.

On the other hand, the rotation of the transmission shaft 10C is controlled by each rotary pawl 14.
However, since the transmission shaft 10C is provided to rotate in the opposite direction, each rotary claw 14 is driven into the soil from its rear position toward the front in the direction of movement of the aircraft. It will be done.
As the rotary claw 14 is driven forward from the rear of the machine in this way, the excavated soil is thrown up from the soil surface in front of the machine and directed diagonally to both sides with respect to the direction of movement of the machine. A scattering effect can be obtained. In this way, the soil in the center of the aircraft is excavated by the rotary claws 14, and the excavated soil is distributed diagonally to both sides with respect to the direction in which the aircraft moves, and then the soil is cut by the rotor 13. By inverting the excavated part, it is possible to prevent the central part of the fuselage from rising. That is, flat wide ridges are formed.

In addition, as described above, the rotary claw 14 is driven from the rear position and excavation is performed in such a way that it flips up from the lower layer toward the surface layer at the front position, so that the straw etc. scattered on the soil surface are removed from the rotary claw 14 and the rotation shaft. It is possible to prevent the straw from wrapping around the rotary claw 12, and to effectively bury the straw etc. in the inverted soil through the flipping action of the rotary claw 14.

The present invention is constructed as described above, and includes:
As mentioned above, a spherical rotor with a gentle arc is provided at the rear of the tractor body so that it can be freely rotated at a slight displacement angle with respect to the traveling direction of the tractor body, and the rotary action of the rotor is In a tillage device that performs tillage by cutting and inverting soil through a rotor, a rotary claw is located at the center of the machine in front of the rotor and rotates in the opposite direction to the direction of rotation of the rotor. The rotary claw excavates the soil from the rear of the aircraft toward the front and scatters the soil in front of the rotor, thereby preventing the soil surface from rising in the center of the aircraft. This made it possible to form flat, wide ridges. In addition, it has become possible to prevent straw, etc. from becoming entangled around the rotary claws and the rotating shaft, and it has also become possible to effectively bury the straw, etc. in the soil.

[Brief explanation of drawings]

1 to 4 are drawings showing a first embodiment, in which FIG. 1 is a perspective view showing a working state of a tractor body equipped with a tilling device according to the present invention, and FIG.
The figure is an enlarged perspective view of the tilling device, and Figure 3 is a plan view of the same.
FIG. 4 is a side sectional view of the gearbox and chain case portions. 5 to 7 are drawings showing the second embodiment, in which FIG. 5 is an enlarged perspective view of the tilling device, FIG. 6 is a plan view thereof, and FIG. 7 is a perspective view of the stabilizing wheel portion. It is. FIGS. 8 and 9 are schematic explanatory diagrams showing the tilling action state. 2... Three-point link hitch, 4... Cover frame, 4A... Base frame, 4B... Main frame, 4C... Adjustment frame, 5, 5'... Bevel gear, 6... Gear box, 7, 7'... Transmission shaft, 8A, 8B, 8C, 8
D...Sprocket, 9...Chain case, 9'
...Bulging portion, 10A, 10B, 10C... Transmission shaft, 11... Chain, 12... Rotating shaft, 13...
Rotor, 14...Rotary claw, 15...Remaining tillage processing claw, 16...Universal joint, 17
... Angle adjustment plate, 17a, 17b, 17c ... Adjustment hole, 19 ... Pin, 20 ... Bracket, 21
... Vertical axis, 22 ... Stable ring, 22a ... Blade body, 2
2b...Grounding wheel.

Claims (1)

[Claims] 1 A pair of left and right rotating shafts are provided at the rear of the tractor body so as to extend diagonally backward and outward, and a suitable number of rotors each having a gentle arc and forming a spherical curve are installed on both rotating shafts. The shafts are mounted at regular intervals so that the concave surfaces face inward, and rotary claws are rotatably mounted in the center of the fuselage, located forward of the rotor, so that the rotary claws face forward from the rear. A tillage device installed to excavate soil and scatter the excavated soil forward and outward.