JPS62163601A - Gang angle adjusting mechanism of rotor in cultivator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a tillage device that is installed to cut and turn soil by forcibly driving a rotor that is curved into a spherical shape with a gentle arc.
Furthermore, in terms of the JL body, the present invention relates to an improvement for making it possible to adjust the gearing angle of the rotor.

One method of cultivating soil is to forcibly rotate a rotor, which is curved into a spherical shape with a gentle arc, at an appropriate inclination (Guyang angle) so that its concave surface faces diagonally forward and inward. The applicant has previously proposed a tillage method in which the soil is cut and turned over by the rotary drive of the rotor.

However, in the second proposal, in addition to IL, where it is difficult to set the gearing angle of each rotor to the optimal angle,
This gearing angle varies slightly depending on the soil quality of the tilled soil, the hardness and softness of the work speed, and the degree of wear of the rotor, and in conventional tillage equipment, the gearing angle of each rotor is fixed at a constant angle. As a result, it was extremely difficult to maintain optimum tillage conditions.

The present invention is an attempt to improve the above-mentioned problems, and the feature of the present invention is that the gearing angle of each rotor can be freely adjusted in response to the above-mentioned working environment. It's all about making it possible. That is, the present invention is characterized in that it is possible to maintain each rotor in an optimal tillage state at all times in response to the above-mentioned working environment. Another advantage is that the cover frame supporting the rotor's rotating shaft is configured to be horizontally rotatable in the front and rear direction using one end on the center side of the fuselage as a fulcrum, and to be fixed at any position.

A specific embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In both of the above drawings, reference numeral 2 denotes a three-point link hitch that is connected to the rear of the tractor body (not shown) via a hydraulic mechanism (not shown) so that it can be raised and lowered, and the three-point link hit 2 has a cover frame 4 attached to it. Concatenated. Same cover frame 4
A pair of left and right main frames 4B extend from the front end of the base frames 4A and 4A, which are fixed to the three-point link hitch 2 by extending in the front-rear direction.
, 4B extend in both width directions (diagonally rearward direction) so as to be horizontally rotatable in the front-rear direction, and have a plurality of adjustment holes 17a, 17b, and 17c at their tips.
is fixed. Further, adjustment frames 4C, 4C extend from the base frame 4A toward both width directions from a position near the rear end. Connection holes ('a8, not shown) are provided at the tips of the adjustment frames 4C and 4C in correspondence with the adjustment holes 17a, 17b, and 17c, and the adjustment holes 1 and 2 are connected to the connection holes.
7a.

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.

That is, the main frames 4B, 4B are the adjustment holes 17a.

Depending on the selection of 17b and 17c, it is provided in a substantially V-shape so that both left and right ends thereof protrude diagonally rearward, with an appropriate gearing angle. A gear box 6 containing a pair of bevel gears is fixed between the base frames 4A, 4A (at the middle position of the cover frame 4), and a chain case 9 extending downward from the bottom of the gear box 6 is fixed. The transmission 4 is provided integrally at the lower end of the chain case 9.
i1111OA is installed in the width direction of the aircraft.

Further, the lower end portion of the chain case 9 is provided so as to bulge out toward the front. That is, the chain case 9 has a portion (hereinafter referred to as "bulging portion 9'") that bulges forward in the lower end thereof.
) is formed in an abbreviated shape, and another transmission shaft 10c is attached to the bulge 9' in the width direction of the fuselage so that it can rotate in the opposite direction to the transmission shaft 10A. It will be erected towards. A rotating shaft 12° 1 is connected to both ends of the transmission shaft 10A via universal joints 1 to 16.16.
2 are concatenated. Both rotating shafts 12.12 extend slightly diagonally rearward along the extending direction of the cover frame 4, and both ends thereof are connected to the main frame 4B.

It is supported at both ends of 4B. And both ■ rotating axis 12°1
2, rotors 13, 13 are mounted on shafts at regular intervals.

The rotor 13.13 has an arcuate curved surface, as if a part of a sphere has been cut out, and is approximately plate-shaped. It is mounted on an axis so that the concave surface faces 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 both left and right directions. Also, a residual tillage treatment claw 15 is provided at the bottom of the swollen portion 9'.
will be permanently installed.

Next, its effect will be explained.

1 and 2, of the adjustment holes 17 a p 17 b e 17 c opened in the angle adjustment plate 17, the adjustment hole 17b is aligned with the connecting hole opened at the tip of the adjustment frame 4C. , is a drawing showing a state in which the pin 19 is inserted into both holes, and by pulling out the pin 19 in the state where the pin 19 is inserted into both holes in this way,
The locked state of the main frame 4B can be released. That is, a state is obtained in which the main frame 4B can be horizontally rotated in the front-rear direction. An adjustment hole 17a opens in the angle adjustment plate 17 for horizontally rotating the main frame 4B as desired.

Among adjustment holes 17b and 17c, other adjustment holes 1 except adjustment hole 17b
The angle of the main frame 4B, that is, the Guyang angle, can be adjusted by inserting the pin 19 into both holes with either one of 7ξl and 17c aligned with the connecting hole.

In a state where the gearing angle has been adjusted in this way,
8), the driving force is transmitted to the traveling mechanism and a traveling action of the tractor body is obtained, while the same driving force is transmitted to both the transmission shafts 10A and IOC via the I'TO shaft. That is, when the transmission shaft 10A rotates in the forward direction (in the direction of arrow a), the transmission shaft 10C rotates in the reverse direction (in the direction of the arrow).
The state is obtained. The rotation of the transmission shaft 10A is further rotated through the universal joints 16, 16 and the rotating shaft 12°12.
is transmitted to each rotor 13.13 via.

By rotating the rotating shaft 12.12 at a speed slightly faster than the traveling speed of the tractor body (approximately 3.5 times the traveling speed of the vehicle), the rotor 13 slips and rotates against the soil surface. A soil cutting action is obtained, and an action of continuously reversing the thus cut soil through the arcuate curved surface of the rotor 13 is obtained.

On the other hand, the rotation of the transmission shaft 10C is transmitted to each rotary pawl 14, but since the transmission shaft 10C is provided to rotate in the opposite direction, each rotary pawl 14 is rotated in the direction of movement of the machine relative to the soil. On the other hand, it is driven forward from the rear position.

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. And like this, the soil in the center of the aircraft is rotary claw 1
4, and the excavated soil is distributed diagonally to both sides with respect to the direction of movement of the aircraft.
By inverting the excavated debris into the excavated area, it is possible to prevent the center of the fuselage from rising.

That is, a flat wide ridge is formed.

In addition, as described above, the rotary claw 14 is driven from the rear position, and at the front position, digging is performed so as to raise it from the lower layer toward the surface layer, so that the rotary claw 14 scatters straw etc. scattered on the soil surface. 14 and rotating shaft 12
In addition to being able to prevent wrapping around the
The same straw, etc. can be effectively buried in the upturned scree through the flip-up action by the rotary claw 14.

In the above embodiment, a plurality of adjustment holes 17 are opened on the main frame 4B side with respect to connection holes that are opened on the adjustment frame 4C side.
The gearing angle is adjusted by selecting one of holes a, 17b, and 17c and inserting a pin 19 into the selected adjustment hole and the connecting hole. The angle adjusting means is not limited to the above-mentioned embodiments, and any conventionally known adjusting means can be used, such as adjustment using a turnbuckle, for example.

The present invention is constructed as described above, and as described above, the rotor, which is formed into a spherical shape with a gentle arc at the rear of the tractor body, is moved at a slight angle of displacement with respect to the direction of movement of the tractor body. In a tillage device, the cover frame supporting the rotor is horizontally moved in the front-rear direction. By making it possible to rotate the rotor and adjusting the gearing angle of the rotor by rotating the cover frame, it can be adjusted to suit the quality of the tilled soil, hardness and softness, working speed, degree of wear of the rotor, etc. This makes it possible to subtly change the gearing angle, thereby making it possible to significantly improve the tillage performance.

In addition, in the present invention, the cover frame supporting the rotor is horizontally rotatable as described above, so that the rotor can be run between the ridges with the gearing angle adjusted to be small. In addition to being able to effectively break up the ridges, it has also been possible to achieve effects such as being able to run smoothly on the road and being able to pack easily.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the entire tillage device according to the present invention;
FIG. 2 is a plan view of the same. 2... Three-point link hitch, 4... Cover frame. 4A... Base frame, 413... Main frame, 4C... Adjustment frame, 6... Gear box, 9... Chain case, 9'.
・Bulging portion, IOA, IOc...Transmission shaft, 12...Rotating shaft. 13... Rotor, 14... Rotary claw, 15 ・
=Remaining tillage processing claw, 16...Universal join 1-1
17... Angle adjustment plate, l 7 a! l 7 b
T 1.7 c...adjustment hole, 19...pin, 2
o... Bracket h, 21... Vertical axis, 22... Stable shaft, 22a... Blade body, 22b... Grounding ring. Patent applicant: Toyo Co., Ltd. Representative: Toshio Tamakoshi, patent attorney

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 both rotating shafts have a suitable number of rotors that are curved into a spherical shape with a gentle arc. In a tillage device, the cover frame supporting both rotation shafts is horizontally rotated in the front-rear direction using one end on the center side of the machine as a fulcrum. A gang angle adjustment mechanism for a rotor in a tillage device which is movable and fixed.