JPS6148881B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a dual-use desk plow.

[Technical background of the invention and its problems]

Traditionally, desk plows, which plow and invert the soil,
It is configured as a so-called single-use type that is fixedly attached to the main body frame. Therefore, with this type of desk plow, the direction of plowing and reversing the soil is always in the same direction, and in the case of return work, it is not possible to continuously plow and reverse the soil in the direction of plowing back and forth. Therefore, reciprocating work is practically difficult and has problems in workability.

[Purpose of the invention]

This invention was developed in view of the points of the present invention, and is capable of reciprocating plowing work by configuring a desk plow as a dual-use type and reversing the desk plow's deviation to a rightward or leftward tilting state with respect to the direction of travel. The purpose of this is to make it possible to greatly improve work efficiency.

[Summary of the invention]

The present invention has a main body frame, a desk plow that is attached to the main body frame so as to be vertically rotatable and that cuts and reverses soil, and a drive shaft that drives the desk plow, and a drive shaft that drives the desk plow in the direction of movement. The present invention is characterized in that it includes a converting means for inverting support between a rightward tilted state and a leftward tilted state, and a grounding ring that is interlocked and connected to one end of the drive shaft and driven in conjunction with the driveshaft.

[Embodiments of the invention]

Embodiments of the present invention shown in the accompanying drawings will be described below.

In the figure, reference numeral 1 denotes a main body frame. At the front end of this main body frame 1, connecting parts 2 that connect to each part of the three-point suspension mechanism of the tractor are provided on both sides and the top. A hollow cylindrical holding body 4 is formed at the lower end of the vertical portion 3 formed at the rear end. Further, a stopper 6 made of a threaded rod or the like is attached to support pieces 5 projecting from both sides of the holding body 4 so as to be vertically adjustable.

Next, the base portion 8 of the reversing frame 7 is rotatably inserted and supported within the holding body 4. The base portion 8 of the reversing frame 7 of the lever is formed into a cylindrical shape with an outer diameter that slides into contact with the inner wall of the holding portion body 4, and
A base end of a substantially L-shaped support arm 9 is integrally fixed to one end of this base body 8, and one end of a connecting arm 10 is fixed to the other end of this base body 8. ing.

Further, bearings 12 are attached to the other end of the support arm 9 and the distal end of the arm 11 protruding in the middle of the connection arm 10 so as to face each other, and both ends of the drive shaft 13 are rotated between the opposing bearings 12. A plurality of desk plows 14 are movably mounted horizontally, and a plurality of desk plows 14 are arranged side by side in the lateral direction of this drive shaft 13 at intervals that allow plowing and reversal over a predetermined width.

Next, a support shaft 15 is protruded from the intermediate portion of the connecting arm 10 of the reversing frame 7, and the tip of a piston rod 17 of a hydraulic cylinder 16 as a conversion means is rotatably attached to the support shaft 15. The base end of this hydraulic cylinder 16 is rotatably supported on a mounting shaft 18 that protrudes from the upper part of the vertical portion 3 of the main body frame 1, and this hydraulic cylinder 16 is operatively connected to the hydraulic drive mechanism of the tractor. It's getting old.

Also, the connecting arm 1 of the reversing frame 7
A board 20 of a chain case 19 is integrally fixed to the outer end of the chain case 19.
An interlocking shaft 22 connected to one end of the drive shaft 13 via a universal joint 21 is rotatably mounted horizontally on the upper part of the drive shaft 0 via a bearing 23. Further, an output shaft 25 of a grounding wheel 24 is rotatably mounted horizontally on the lower part of the base plate 20 of the chain case 19 via a bearing 26, and the sprocket 2 of this output shaft 25
7 and the sprocket 28 of the interlocking shaft 22, a chain 29 serving as an interlocking medium is suspended. Further, an annular keel 30 having a substantially circular sawtooth shape is integrally provided on the outer periphery of the grounding ring 24 so as to easily bite into the ground.

Next, the operation of the above configuration will be explained.

Each connecting portion 2 of the main body frame 1 is connected to each part of the three-point suspension mechanism of the tractor, and the hydraulic drive mechanism of the tractor is interlocked and connected to the hydraulic cylinder 16. First, when performing a right-hand reversal operation on the outward trip, the piston rod 17 is expanded and contracted by the hydraulic cylinder 16, and the drive shaft 13 having the desk plow 14 is reversed vertically about the holding body 4 via the reversing frame 7. Then, as shown in each figure, the desk plow 14 and the drive shaft 13 are set to be tilted to the right at a predetermined angle with respect to the traveling direction of the machine. As a result, the interlocking arm 10 of the reversing frame 7 is supported from above and below by one of the stoppers 6 and the piston rod 17, and therefore each desk plow 14 and drive shaft 13 is reversed to the rightward tilting state at a predetermined angle. A grounding wheel 24 supported and pivoted on a chain case 19 integral with the reversing frame 7 is grounded in the reversing direction of each desk plow 14. and,
When the machine is towed by a tractor, the ground contact wheel 2
4 is rotated, and the drive shaft 13, which is interlocked and connected to the grounding wheel 24 via a chain 29, is interlocked and driven.
Each desk plow 14 attached to this drive shaft 13 is driven, and each desk plow 14 sequentially cuts the soil in the field to the right in the direction of travel and continuously plows and inverts it. In this case, since the grounding wheel 24 has the keel 30, it rotates smoothly.
Next, on the return trip, when performing left reversal work on the plowing reversal side in the outbound trip, the hydraulic cylinder 16
When the piston rod 17 is contracted,
In FIG. 2, the reversing frame 7 is rotated clockwise around the holding portion 4 in its base portion 8, and the drive shaft 13 having the desk plow 14 supported by the reversing frame 7 is reversed vertically. The position is changed from the state shown by the solid line in FIG. 3 to the state shown by the chain line, and each disk plow 14 and drive shaft 13 are set to be tilted to the left at a predetermined angle with respect to the direction of movement of the machine. As a result, the inverted frame 7
The connecting arm 10 is supported from above and below by the other stopper 6 and the piston rod 17,
Therefore, each desk plow 14 and drive shaft 13
is inverted and supported tilted to the left at a predetermined angle. Then, as the machine is towed by a tractor, the grounding wheel 24 is rotated in conjunction with the grounding wheel 24.
The drive shaft 13 is driven as described above, and the soil in the field is sequentially cut to the left in the advancing direction by each desk plow 14 of the drive shaft 13, and the soil is continuously plowed and reversed. In this way, by inverting each desk plow 14 and drive shaft 13 around the holding body 4, setting them to the rightward tilting state or the leftward tilting state, and locking the set position, each desk plow 14 can be rotated in both directions. It can be used as a mold, and each desk plow 14 can smoothly perform reciprocating plowing work.

Next, in practice, it is preferable that the driving shaft 13 automatically switches the driving direction along with the reversing operation of the desk plow 14. That is, it is desirable that the desk plow 14 always rotate in the normal direction with respect to the direction of travel. Further, the desk plow is not limited to a curved disk shape, but may have a shape having an uneven portion on the outer peripheral edge. Moreover, the number of desk plows may be a series or multiple series. Furthermore, since the drive shaft 24 is driven by the chain 29 interposed between the ground wheel 24 and the ground wheel 24, the rotation of the ground wheel 24 and each desk plow 14 of the drive shaft 13 can be converted to an appropriate speed. .

〔Effect of the invention〕

According to the present invention, the main body frame has a desk plow, and the drive shaft for driving the desk plow is attached to be rotatable in the vertical direction, and the drive shaft is tilted to the left or to the left with respect to the direction of travel. In addition to enabling reversal support, a grounding wheel is interlocked with a part of the drive shaft, so the desk plow is configured as a dual-use type that can be deflected left and right and reversed. It is possible to perform smooth reciprocating plowing work by continuously raising and reversing in the same direction, and since this desk plow is rotationally driven, the soil is cut elastically and the plowing and reversing work is smooth. Furthermore, since the drive shaft holding the desk plow is interlocked with the grounding wheel, it acts as a gauge wheel to keep the plowing reversal depth constant by the desk plow, and also prevents the rotation of this grounding wheel. can be used to rotate the desk plow to reliably drive the desk plow, and its structure can be simplified. Therefore, it is possible to provide a highly practical dual-use desk plow with greatly improved workability.

[Brief explanation of the drawing]

Fig. 1 is a side view of the dual-use desk plow, Fig. 2 is a side view in the direction of arrow a, and Fig. 3 is a side view of the dual-use desk plow.
It is a sectional view of a line part. 1... Body frame, 13... Drive shaft, 14...
...Desk plow, 16...Hydraulic cylinder as a conversion means, 24...Grounding wheel.

Claims (1)

[Claims] 1. A main body frame, a desk plow attached to the main body frame so as to be vertically rotatable and capable of cutting and reversing soil, and a drive shaft for driving this desk plow, and a drive shaft for driving this desk plow, and a drive shaft for driving this desk plow, and a drive shaft for driving this desk plow, and Conversion means for inverting and supporting the device in a rightward tilting state and a leftward tilting state with respect to the direction;
A dual-use desk plow comprising a grounding wheel interlockingly connected to one end of the drive shaft and interlockingly driving the drive shaft. 2. A double desk plow according to claim 1, characterized in that a plurality of desk plows are connected in the axial direction at intervals such that the soil can be continuously turned over in the width direction with respect to the drive shaft. desk plow. 3. The drive shaft is supported by an inversion frame that is rotatably attached to the main body frame, and is interlocked and connected via an interlocking medium to a ground ring that is rotatably mounted on the inversion frame. A dual-use desk plow according to claim 1 or 2.