JPH11196604A - Reversible plow working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the unstable state in reversing work, prevent the loss of traction power of a tractor and enable full expectation of the function of an offset mechanism in the case of mounting the mechanism by shortening the whole length of a plow working machine. SOLUTION: This reversible plow working machine is at least provided with a mast frame 10 attached to a tractor and free from reverse rotation, a plow frame attached to the mast frame 10 in a manner to enable reverse rotation, plural bottoms 26 attached to the plow frame and coulters 27, 31, 32 corresponding to the plural bottoms 26. The 1st coulter 31 corresponding to the 1st bottom 261 and positioned corresponding to the spacing between the bottoms 26 is attached to the mast frame 10 and the 2nd coulter 32 capable of corresponding to the 1st coulter 31 at the next working step is attached to the mast frame 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reversible plow working machine, and more particularly, to a reversible plow working machine developed for the purpose of shortening the total length of a multiple plow working machine.

[0002]

2. Description of the Related Art Conventionally known reversible plow working machines, in particular, a multiple-type reversible plow having a plurality of bottoms.
In the shivle plow working machine, the plow frame for attaching the bottom is a member extending in a direction obliquely rearward with respect to the working width direction because a necessary number of bottoms are attached to the plow frame. In addition, a plurality of bottoms and a corresponding filter are attached to the bottoms. Further, the reversible plow working machine is provided with a mast or the like for attaching to the tractor, and the mast frame having this mast is reversible with respect to the mast frame which does not rotate even when the reversing is reversed. It is attached so that it can rotate around the reversal axis.

This configuration will be described with reference to FIGS.
First, reference numeral 1 denotes a mast frame having a mast 2;
An upper link U of a tractor T (a tractor of a crawler type in the drawing) is attached to the central mast 2, and lower links L of the tractor T are attached to the lower end positions on both sides of the mast frame 1. It has become.
The mast frame 1 is reversely rotated about the reversing axis 4.
A front frame 3 is attached so as to be turned over, and a bottom frame 8 is attached to the front frame 3 via an offset mechanism described later. And a frame plate 8B for fixing the front frame 8A extending along the front frame 8A. In this reverse inversion, a lower end portion 5A (a tip portion of a rod) of a reversible cylinder 5 is attached to an inversion pin 4A provided at a position offset from the inversion shaft 4. The upper end of the reversing cylinder 5 is pivotally connected to the mast 2. The expansion and contraction of the reversing cylinder 5 allows the bottom frame 8 to be rotated about the reversing shaft 4 as a rotation center. Further, a plurality of bottoms 6 are attached to the bottom frame 8 extending obliquely rearward with respect to the work progress direction for each plowing width. For example, in the drawing, three bottoms 6 are attached, and the bottom 6 is tilled to the right in the working direction, and each bottom 6 has a corresponding core.
Luta 7 is equipped. As described above, the front frame 8A has a long front frame 8A along the working width direction at the forefront of the bottom frame 8, and the bottom frame 8 is framed with respect to the front frame 8A. It is attached via a plate 8B and is integrated. A feed screw 9 is attached to the front frame 3 along the working width, and a boss 8Y provided on the front frame 3 is screw-fitted to the feed screw 9; Part is front frame
The bottom frame 8 is mounted along the feed screw 9 along the front frame 3 by the rotation of the crank handle 9A attached to the end of the flange 8X fixed to the flange 8X. Can be moved. That is, it can be offset-moved.

[0004]

In such a plow working machine, the position of the center of gravity of the working machine is located rearward in the longitudinal direction of the working machine. , The center of gravity exists at a position eccentric from the reversal axis when lifted for reverse reversal, and the center of gravity in the longitudinal direction is rearward, making it extremely unstable. In a state. Further, in the inverted state, the overall weight distribution, in other words, the center of gravity of the work machine is located at a position near the rear of the entire length and at a high position, and is extremely unstable in the lifted state. Further, when the position of the center of gravity of the work machine is located rearward, traction force is lost when the tractor is towed, so that work with a small tractor becomes impossible. In order to solve such a problem, attempts have been made to reduce the length of the entire plow working machine. However, this is not only limited but also requires a first coater when an offset mechanism is mounted. May interfere with the mast frame, and the offset mechanism may not function, and thus cannot be a fundamental solution to the problem.

[0005] Therefore, the present invention reduces the total length of the plow working machine, thereby eliminating an unstable state during reversing work, preventing a loss of traction force of the tractor, and sufficiently mounting an offset mechanism. The purpose is to be able to expect that function.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides at least a mast frame which is mounted on a tractor and does not reverse, and a reverse mast frame. In a reversible plow working machine comprising a reversibly mounted plow frame and a plurality of bottoms attached to the plow frame, and a coater corresponding to each bottom, A first coater corresponding to the interval and corresponding to the first bottom is attached to the mast frame, and is located at a position adjacent to the work path of the final bottom, and at the next tillage reversal. The work is characterized in that a coater is attached to the mast frame at a position corresponding to the first bottom during work. As a result, the filter corresponding to the first bottom is attached to the mast frame that cannot be reversed, so that the switch corresponding to the first filter corresponding to the first bottom is provided. As a result, the first bottom can be moved forward with a reduced distance, and the center of gravity of the entire work machine is moved closer to the tractor. Therefore, a stable state can be ensured even when lifted during reverse inversion.

[0007] In the reversible plow working machine, the plow frame is configured to be movable in the working width direction with respect to the mast frame. Therefore, even when the offset mechanism is operated, the first coater does not interfere with the offset operation.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. First, FIG. 1 is a plan view of a plow working machine according to the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a plan view of a bottom arrangement for explaining a working state.

Reference numeral 10 denotes a mast 11 at the center position.
A mast frame attached to the upper link U of the tractor T and lower links L on both sides of the lower end (similar to the conventional example).
Inverting axis 1 for reverse inversion at the center of the plane
2 is projected, and a bearing part is fitted to the reversing shaft 12. The bearing portion 21 is attached to the mast frame 10 in a reversible manner so that the front frame 20 is attached thereto.
1 is a reversing pin 22 in which the rod 13A of the reversing cylinder 13 having an upper end attached thereto is eccentric to the reversing shaft
Attached to.

The mast frame 10 has a front frame so that the mast frame 10 can be turned over.
The front frame 20 is provided with a plow frame. A feed screw 23 extending in the working width direction is disposed with respect to the front frame 20, and one end of the feed screw 23 is provided at the front frame 20.
The other end is fitted to a boss 23A attached to a front plow frame, which will be described later, while allowing only rotation. By rotating the feed screw 23 by rotating the crank handle 23B, the front plow frame can be moved in the working width direction with respect to the front frame 20, that is, can be offset. In other words, there is a front plow frame 24 parallel to the longitudinal direction of the front frame 20, and the front plow frame 24 has a boss 24A having a female screw. ing. A rear plow frame 25 extends obliquely rearward with respect to the working width direction with respect to the front plow frame 24, and ends of the rear plow frame 25 are provided by stays 26A, 26B having a reinforcing function. ,
Front frame 20 and front plow frame 2
4 and one.

Further, three bottoms 26 are attached to the rear plow frame 25 to form a triple plow working machine. Each bottom 26 has a joiner 26X
Is attached to ensure the reversal of the debris. In particular, a coater 27 is attached to the second bottom 262 and the third bottom 263 via a stay 27A extending from the rear plow frame 25 corresponding to each bottom, and corresponds to the first bottom 261. The coater is not mounted on the rear plow frame 25.

The first bottom 261 corresponds to the first bottom 261.
Of the first bottom 26 is attached to the mast frame 10 by a U-bolt 31A.
The movement locus of this filter corresponds to the first bottom 261.
It is located on the movement trajectory of the foremost part. Further, a second coater 32 is attached to the mast frame 10 by a U-bolt 32A at a position spaced apart from the coater 31 and the final bottom by one more bottom. The above-mentioned coater 31 functions as a right-hand plowing operation in FIG.
Reference numeral 2 denotes a left coater that functions when the plow working machine is turned over to perform the next work. The movement trajectory of the left filter 32 is the first movement when the first bottom 261 is inverted.
It is attached corresponding to the movement locus of the bottom 261. In the above description, the coulter 32 is outside the work area of the third bottom 263 which is the final bottom, but may move inward depending on the number of bottoms.

Next, the plowing operation by the plow working machine of the present invention will be described. The operation will be described after the opening operation. The plow work machine performs the plowing work from the headland to the work target portion of the field. At this time, as shown in FIG.
Is attached to the mast frame 10, but moves on the front of the locus of movement of the first bottom 26, and the coater 27A,
27A moves on the front of the locus of movement of the second and third coaters 27,27. At this time, the coater 32 attached to the mast frame 10, the so-called left coater 32, is outside the working area of the third bottom 26, which is the final bottom, and in the next stroke after the reversing work. Is arranged so as to be able to move on the front of the movement trajectory.

When the locus of movement of the first bottom 26 does not coincide with the locus of movement of the first coater, the front plow frame 24 is fed through the feed screw 23 by rotating the offset mechanism, that is, the crank handle 23B. Are moved in the direction of the working width so that their trajectories coincide with each other.

Also, in order to perform the work on the adjacent plowing work site after one work process is completed, it is necessary to turn the plow work machine upside down. The left filter 32 is located in front of the locus of movement of the first bottom 26, so that the slitter operation is performed by the filter prior to the plowing operation as in the previous process. Also in this case, if the positioning by the offset mechanism becomes necessary, the position of the first bottom 26 is moved by rotating the crank handle 23B. Coulter 3
1 and 32 are moved along the mast frame 10 for alignment along the direction of the arrow in FIG. 1 by temporarily loosening the U-bolt 31A or 32A.

Further, prior to the reversing operation, the plow working machine is lifted. However, since the first coater is attached to the mast frame 10 which cannot be reversed, the plow is lifted by the amount of the first bottom 26. Since the overall length of the working machine is shortened, the position of the center of gravity of the entire plow working machine is closer to the tractor, and a stable state is maintained even when the plow working machine is reversed.

In the working state shown in FIG. 3, the position of the second coater 32 in the present invention is such that a slit is formed in a part of the uncultivated land in the stroke, but in the next working stroke, First slit is formed on the slit formed by the filter 32.
Ruta works to perform tillage reversal work.

In the case where the offset mechanism is mounted on the plow working machine, the first coater located in front of the first bottom sometimes hinders the offset operation. In the present invention, since the first coater 31 is attached to the mast frame 10, the offsettable distance can be increased and the position of the bottom group can be easily adjusted.

[0019]

As is apparent from the above description, according to the reversible plow working machine of the present invention, the first coater corresponding to the first bottom is mounted on the mast frame which is not inverted even in the reversible inversion. Therefore, the length of the portion accompanied by the reverse reversal, in other words, the length behind the front frame of the plow working machine can be shortened by the first call, whereby the entire working machine can be reduced. The position of the center of gravity can be shifted to the tractor, so that the reversing operation can be performed in a stable state in a lifted state and further in a reverse reversal.

Further, the first coater is attached to the mast frame as described above, and is located outside or inside the working area of the final bottom and at a position corresponding to the first bottom after the reversal. Since the second coater is attached, no special adjustment work is required for the first bottom as well as other bottoms, and continuous work is possible.

Further, since the bottoms are arranged in a state of approaching the tractor, the center of the traction resistance during the operation is also in the state of approaching the tractor, and the loss of the traction output can be reduced. Further, there is an effect that the first coater does not hinder the offset operation by the offset mechanism.

[Brief description of the drawings]

FIG. 1 is a plan view of a reversible plow working machine according to the present invention.

FIG. 2 is a side view of the reversible plow working machine shown in FIG.

FIG. 3 is an explanatory diagram showing an arrangement of bottoms in a working state.

FIG. 4 is a plan view of a conventional reversible plow working machine.

FIG. 5 is an explanatory diagram showing an arrangement of bottoms in a working state.

[Explanation of symbols]

 Reference Signs List 10 mast frame 11 mast 12 reversing shaft 13 reversing cylinder 13A rod 20 front frame 21 bearing part 22 reversing pin 23 feed screw 23A boss part 23B crank handle 24 front plow frame 24A boss part 25 rear plow frame 26 bottom 261 First bottom 262 Second bottom 263 Third bottom 26X Joiner 27 Coulter 31 Coulter 32 Coulter

Claims (2)

[Claims] 1. At least attached to a tractor,
A mast frame without reverse inversion, a plow frame mounted on the mast frame so as to be capable of reverse inversion, and a plurality of bottoms mounted on the plow frame. And a reversible plow working machine having a coater corresponding to each bottom, wherein the first coater which is arranged corresponding to the interval between the bottoms and corresponds to the first bottom is a mast frame. A reversible plow working machine, characterized in that a second coater which is attached and which can correspond to the first coater in the next operation step is attached to the mast frame. . 2. The reversible plow operation according to claim 1, wherein the front plow frame attached to the front frame is configured to be movable along the working width direction with respect to the front frame. Machine.