JPH052004Y2 - - Google Patents

Description

[Detailed explanation of the idea] <Industrial application field> This invention relates to a soil lifting device for sloped land.

<Prior art> In general, the working part of a soil lifting device is required to not only plow the soil but also to release the tilled soil to the mountain side of a slope. As shown in Japanese Patent Publication No. 59-213303, the tiller claws are arranged around a rotary shaft in the shape of a propeller.
As shown in Publication No. 32920, etc., a water wheel-shaped rotary with blades radially attached in the axial direction around a disc-shaped desk, or other than an earth lifting device, as shown in Publication No. 15604 of 1983, It is known that an excavating edge with its tip standing upright in the tangential direction is attached around a disc-shaped desk, and a blade for discharging soil is erected on the desk surface on the upright side of the edge.

<Problems to be solved by the invention> However, in the conventional rotaries mentioned above, the first propeller-shaped rotary has insufficient action to release tilled soil, and the second waterwheel-shaped rotary has insufficient tilling resistance. It had the disadvantage that the rotational reaction force was too strong, the workability was poor, and the rotational reaction force was transmitted to the fuselage, which was dangerous. In addition, the rotary for the ridge-making machine shown in the third example operates with the rotary axis close to vertical and the desk in a nearly horizontal state, so it is not only suitable for use as a ridge-making machine, but also suitable for use in soil lifting machines for tilling and releasing. The problem is that it does not work well and cannot be used.

<Means for solving the problems> In order to solve the above problems, the device of the present invention has the following features:
In a device in which a rotary desk 31 is attached to a rotary shaft 17 supported at the rear of the machine body 1, and a plurality of soil lifting blades 41 are detachably arranged around the outer periphery of the rotary disk 31, the rotary disk 31 is set as the axis. The rotary desk 31 has a polygonal shape that is rotationally symmetrical, and the apex of the polygon of the rotary desk 31 is cut out, and a claw-like plowing part 41 protrudes in the outer circumferential direction from the cutout part.
A soil-lifting blade 41 is attached to which a soil-lifting blade 41 has b and a releasing portion 41c that protrudes from the side surface of the rotary desk 31, and when the rotary desk 31 rotates, the tilling portion 41b intersects the tilled soil surface and tills the soil, and the rotary desk 31 rotates. It is characterized in that the rotary shaft 17 is supported toward the rear of the machine body 1 so as to lift soil upward along the direction.

<Function> As the rotary disk rotates, the tilling portion 41b of the soil lifting blade of the present invention protrudes along the rotation direction of the disk 31 at its outer periphery, so it is cut into the soil with extremely little resistance. The tillage is carried out to the depths, and the soil tilled by the tilling section 41b is immediately and efficiently thrown to the mountain side of the slope by the tilling section 41b and the releasing section protruding from the desk surface.

<Example> The drawings all show examples of the present invention, and Fig. 1 is an overall side view of the soil lifting device according to the present invention.
An engine 5 and a transmission case 7 are mounted on the frame 3, and wheels 9 are attached to the lower part of the frame 3, and the wheels 9 are attached to the transmission case 7.
The structure is such that the chain is driven by the rotation of the traveling output shaft 11. 13 is a chain case containing a drive chain.

A working output shaft 15 protrudes from the rear of the transmission case 7, and a chain wheel, bevel gear, or the like is fitted onto this output shaft 15 to connect it to a working section, and is a mechanism for driving the working section. .

The rotary shaft 17 is inserted into a support member 19 such as a shaft case and supported so as to be freely rotatable, and its upper end is connected to the output shaft 15 via a bevel gear within the support member 19.
At the lower protruding end of the
The rotary 33 is inserted and fixed so that it can be detached and the interval between them can be adjusted. Each rotary disk 31 has a polygonal shape that is rotationally symmetrical about its axis, and a pipe-shaped boss 35 into which the rotary shaft 17 is inserted is fixed at the center in a direction perpendicular to the rotary disk 31.

The boss 35 and the rotary shaft 17 have a pin 3
A plurality of pin holes 39 are drilled through which the rotary desk 7 is inserted and the two are detachably fixed, and the mounting position and the mounting interval of the rotary desk 31 can be adjusted.

Bent parts 31a are formed alternately on each side of the outer peripheral edge of the rotary desk 31, and a soil lifting blade 41 is removably attached to the side opposite to the bent part where the bent parts 31a are not present. . The soil lifting blade 41 is connected to one side of the rotary desk 31 and the bent portion 31a.
A base 41a that overlaps so as to fit along the outside of the base 41a, a sword-like plowing part 41b that protrudes from the tip of the base 41a toward the fuselage 1 at a certain angle of inclination, and a rotary desk on the side surface of the base 41a. The base 41a is integrally formed with a projecting portion 41c that is radial with respect to the axis of the base 41a and protrudes upright from the side surface of the base 41a. Further, the mounting positions of the soil lifting blades 41 of each rotary desk 31 have phase angles that are alternately different for each stage.

The bent portion 31a of the rotary desk 31 serves as a guide for attaching the base 41a accurately and stably, and also prevents the bolts 43 attaching the base 41a from coming into contact with field soil and becoming worn out or loosening during rotary tillage work. It is effective in preventing A cover 45 covering the rotary 33 is provided on the top of the rotary 33, and the cover 45
The side surface shape is curved in a "T" shape so as to cover the rear of the rotary 33, and a cover frame 45a is provided in the left and right centers in the front and back direction, and the cover frame 45a has a front end that supports the rotary shaft of the rotary shaft support member 19. It is pivotally supported at a rotation fulcrum 47 provided in a position very close to 33 so as to be vertically movable.

In addition, the fender 45b has a vertical section in the left and right direction bent in a valley shape with the central part pointing downward, and is fixed so as to rise left and right from the cover frame 45a. Side covers 4 are located on the axis of the fender 45b, and have an outer shape that follows the curved shape of the side surface, and control the amount and distance thrown by the rotary 33 at both ends of the fender 45b.
5c has a structure in which the rotation angle (opening/closing angle) can be adjusted and is attached by a hinge 49 or the like.

Furthermore, a resistance rod 53 is attached to the center of the rear end of the cover 45 via a resistance rod attachment portion 51 in a vertically movable and vertically adjustable state. 5
1 is a set bolt for adjusting and setting the mounting height of the resistance rod 53.

The lower end of the resistance rod 53 comes into contact with the plowed ground and has functions such as braking when the machine is moving, preventing the machine from sliding down to the valley side on sloped ground, guiding the machine in a straight line, and controlling the plowing depth. The resistance rod 53 consists of a straight rod portion 53a, a flange portion 53b attached horizontally at its lower end, and a guide edge 53c extending downward in the front-rear direction on the lower surface of the flange portion 53b. Reference numeral 53b is used to control the plowing depth, and guide edge 53c is used to provide straight-line guidance.

Brackets 55a and 55b are protruded from the upper part of the cover 45 and the upper part of the support member 19, and between the brackets 55a and 55b, the tip is supported by one bracket 55b so as to be rotatable and vertically movable, and the other one is supported at the rear. An adjustment rod 55c made of a screw or the like is provided on the bracket 55a so that it can rotate and move up and down. An adjustment handle 55d is provided at the rear end of the adjustment rod 55c, and by rotating the adjustment handle 55d, vertical movement of the cover 41 is adjusted.
The above mechanism constitutes a vertical adjustment mechanism 55 for the cover 45.

The soil lifting device in this embodiment moves across the sloping field, and rotates the rotary 33 counterclockwise on a slope going down to the left, and clockwise on a slope going down to the right. It should be cultivated in stages. At this time, the rotary 33 first plows to the depth of its rotation locus with the upper rotary disk 31, and then plows to the lower end depth of its rotation locus with the lower rotary disk 31.
By attaching the soil lifting blades 41 of each rotary desk 31 so that the phase angles with respect to the axis are different from each other, tilling resistance is also dispersed and tilling is carried out smoothly.

The soil lifting blade 41 attached to the rotary desk 31 has a tilling section 41b that cuts into the ground and tills the soil.
The releasing part 41c is attached to the rotary desk 3 on its side.
According to the rotation of 1, the soil is plowed and thrown to the mountain side, but in the process, the soil that is thrown upward hits the inner surface of the fender 45b or side cover 45c and falls, and is removed from the field again by the soil lifting blade. 41, it is thrown to the mountain side.

In addition, at this time, the distance between the inner center of the cover 45 and the rotation locus of the rotary 33 is kept as narrow as possible, and the fender 45b is inclined along the slope of the field, so that the fender 45b does not hit the ground on the mountain side, and it is possible to till the field. The soil is configured so that it cannot pass through the space between the rotary 33 and the cover 45, which is the narrowest space on the axis of the rotary 33, and does not fall to the valley side.

Furthermore, the cover 45 can be adjusted by a vertical adjustment mechanism 55.
The vertical movement is adjusted about the rotation fulcrum 47, and the plowing depth is adjusted while keeping the gap between the cover 45 and the rotary 33 narrow and substantially constant. The plowing depth and the spacing between the rotary desks 31 are adjusted depending on conditions such as the angle of the slope, the speed of movement of the machine, and the quality and hardness of the soil in the field. When plowing in one direction is completed, the direction of the machine body 1 and the rotation direction of the rotary 33 are changed and the same operation is repeated again.

In addition, when a single-wheel management machine is used as the management machine of the present invention, there is an advantage that plowing and soil lifting work can be carried out in an optimal state while always keeping the vehicle body vertical and without applying large force to the operator's hands.

<Effects of the invention> According to the device of the invention configured as described above,
The tilling section protrudes from the circumference of the rotary desk along the direction of rotation of the rotary, so together with the tilling section, it reaches deep into the field with very little resistance and tills as if cutting the soil. Since it protrudes from the surface of the rotary desk perpendicular to the direction of rotation, it has the effect of efficiently raking and releasing tilled soil according to the tilling depth of the tilling section, making tilling work on sloped land smoother and improving work efficiency. It is something that makes you

[Brief explanation of drawings]

The drawings show one embodiment of the present invention. Figures 1A and B are a plan view and side view showing details of the rotary desk and soil lifting blades, Figure 2 is a side view of the entire soil lifting device, and Figure 3 is a side view of the entire soil lifting device. The figure is a rear view of the main parts showing the operating state of the rotary and the cover. 31... Rotary desk, 33... Rotary, 41... Soil lifting blade, 41a... Base, 41
b... Cultivation part, 41c... Release part.

Claims (1)

[Scope of utility model registration request] On the rotary shaft 17 supported at the rear of the fuselage 1,
In an apparatus in which a rotary desk 31 is mounted and a plurality of soil lifting blades 41 are detachably arranged around the outer periphery of the rotary desk 31, the rotary desk 31 has a polygonal shape that is rotationally symmetrical with respect to the axis, and the rotary desk A claw-like tilling portion 4 is formed by cutting out the apex of the polygon 31 and protruding in the outer circumferential direction from the notch.
1b and a releasing part 41c that protrudes from the side surface of the rotary desk 31. When the rotary desk 31 rotates, the tilling part 41b intersects the tilled soil surface and tills the soil, and at the same time the rotary desk 31 rotates. This soil lifting device for sloped land has a rotary shaft 17 supported toward the rear of the machine body 1 so as to lift soil upward along the direction.