JPH0622601A - Reversible plow capable of lowering center of gravity - Google Patents

Abstract

PURPOSE:To lower the center of gravity of a plaw unit by connecting the upper bottom through a mobile beam to the lower bottom and making the mobile beam movable in the direction perpendicular to a plane including the bottom frame. CONSTITUTION:Deep plowing bottoms 13 and 13 are attached to the upper and lower parts of a bottom frame 11 so as to be movable in the perpendicular direction. The respective beams 13a of the upper and lower bottoms are connected through a mobile beam 14 and the mobile beam is moved up and down in a guide rail 15. If the lower deep plowing bottom is moved down, the upper deep plowing bottom is also moved down. Thereby, the center of gravity can be lowered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
Regarding the sibble plow, in more detail, the lower center of gravity can be lowered by moving the lower bottom downward and the upper bottom close to the bottom frame, and the center of gravity can be lowered so as to increase the stability when grounded. It relates to reversible plows.

[0002]

2. Description of the Related Art Conventionally known reversible plows have a structure in which bottoms whose plowing directions are reversed are attached above and below a bottom frame to enable reciprocal plowing. Another set of bottoms is attached to the upper side of the standard type plow device, and in terms of weight, the upper and lower weights are substantially equal to the plane including the bottom frame. The center of gravity is raised by the weight of the non-working side (upper side) that does not function, and the position of the center of gravity of the working machine is considerably high.

[0003]

In such a reversible plow, only the bottom bottom of the bottom frame is directly involved in the work, but the top bottom does not contribute to the plowing work. Nevertheless, in terms of weight, since the top and bottom are substantially the same, the position of the center of gravity of the entire plow device is necessarily high. Therefore, the loss of traction power during traction work by the tractor is large due to the high center of gravity not only during work but also when grounded without work.
In addition, the plow device as a whole has to have an unstable posture. Therefore, the present invention is a reversible type plow, but it is an object of the present invention to lower the center of gravity of the entire body to reduce the resistance during work as much as possible, and to maintain a stable posture in the grounding state during non-working. It is what

[0004]

In order to achieve the above object, the present invention provides a reversible plow in which bottoms are attached to the top and bottom of a bottom frame and can be reciprocally cultivated by reversing the bottom frame. It is characterized by comprising upper and lower bottoms movably mounted in a vertical direction with respect to the bottom frame, a connecting member for connecting the upper and lower bottom supporting members, and a drive source for driving the bottoms. It is a thing.

[0005]

According to the reversible plow of the present invention, the bottom on the non-working side is moved vertically to the plane including the bottom frame and brought close to the frame, whereby the center of gravity of the plow device as a whole is lowered. The position can be moved downward and work can be performed in a stable state, and in the state of being grounded to the ground, the lower bottom can be reliably grounded and a stable state can be achieved.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment in which the present invention is applied to a two-stage tilling plow will be described below with reference to FIGS. 1 to 4 of the accompanying drawings. In these drawings, reference numeral 10 denotes an entire two-stage tillage type reversible plow device (hereinafter referred to as a plow device) to which the present invention is applied. The plow device 10 includes a bottom frame 11 and a shallow tillage bottom 12. , Deep plowing bottom 13
And a pair, which are attached above and below the bottom frame 11 in a pair.

The shallow tillage bottom 12 is located in front of the deep tillage bottom 13 along the working direction, and is attached to the bottom frame 11 through the beam 12a.
The deep plowing bottom 13 constitutes a two-stage plough.

The deep plowing bottom 13 is not attached to the bottom frame 11 via the beam 13a, but below the movable beam 14 as a connecting member movably attached to the bottom frame 11. The movable beam 14 is fixed to the (upper) end portion, and is slidably attached to a guide rail 15 fixed to the bottom frame 11.

The guide rail 15 has the movable beam 1 described above.
The front plate 15 has a shape corresponding to the sectional shape of 4
a and the side plate 15b, the front plate 15a
The opposite side is surrounded by the projecting edges 15c protruding from both sides, and a part of the center is opened.

This guide rail 15 is a bottom frame 1
1 and the movable beam 14 is inserted into the guide rail 15, and the movable beam 14 is also a bottom frame.
It has a length sufficient to project in the vertical direction of the plane including the frame 11, and is longer than the guide rail 15.

Then, the side surface portion 14 of the movable beam 14
A support mechanism 30, which will be described later, is attached to a through a connecting plate 16. Bees of the upper and lower deep plowing bottoms 13
The end portion of the frame 13a is supported by the support mechanism 30. There is a hydraulic cylinder 17 whose one end is pivotally attached to the bottom frame 11 side, in other words, a guide rail 15, and a cylinder rod 17a which can be expanded and contracted with respect to the hydraulic cylinder 17 is pivoted to the movable beam 14. It is worn.

The movable beam 14 is moved along the guide rail 15 by the expansion and contraction of the hydraulic cylinder 17, the deep plowing bottom 13 is moved downward by the extension, and is moved upward by the contraction. Be moved. In other words, the extension makes the lower deep plowing bottom 13 ready for plowing work.

At this time, the deep plowing bottom 13 located on the upper side of the bottom frame 11 is lowered by the amount of movement of the lower bottom 13, and is brought into a state of approaching the bottom frame 11 by that amount. In other words, the deep plowing bottom 13 on the upper side
Is closer to the bottom frame 11, the overall center of gravity becomes lower.

A front frame 18 for rotating the bottom frame 11 is provided at the front end of the bottom frame 11 so as to extend in the working width direction. The front frame 17 is a mast frame described later. -For the frame, the bearing 21a provided at the lower end of the mast frame 19
A rotary shaft 20 provided at the tip of the front frame 18
Is mounted so that it can be inserted and rotated, and the upper end of the cylinder rod 23 of the reversing cylinder 22 pivotally mounted on the mast frame 21 is eccentric from the rotary shaft of the front frame 18. It is attached to the position.

At the lower end of the mast frame 21, there is a mounting frame 24 which spreads to both sides, and this mounting frame 2
4 is provided with a lower link mounting pin 25 for mounting the lower link of the tractor.
A corter 19 is attached to the front part of the.

The support mechanism 30 includes a support plate 31 having a V-shape at the tip of the connecting plate 16 and another support plate 32 arranged in parallel with the support plate 31 with a slight gap therebetween. The spacing is held by fixing plates 33 and 34 that are orthogonal to the plates 31 and 32.

The beam 13a of the deep plowing bottom 13 is inserted between the support plates 31 and 32 in a sandwich state, and a support pin serving as a rotation center is provided at an end of the support plates 31 and 32. It is in a state of being rotatable by 35 and 36. Therefore, the rotation of the beam 13a rotates along a plane oblique to the movable beam 14.

Then, a safety bolt 3 which penetrates between the fixing plates 33 and 34 together with the beam 13a of the deep plowing bottom 13 is provided.
7 and its end is fastened by a nut 37a. When an overload is applied to the bottom 13, a tensile load is applied to the safety bolt 37 and the bottom 13 is destroyed by the tensile load to prevent the bottom 13 from being destroyed. ing.

When a rotational force acts on the beam 13a of the deep plowing bottom 13 around the support pin 35 (36), the bottom 13 is in a plane including the beam 14a (a plane intersecting with the movable beam). Therefore, it does not interfere with the bottom located above the bottom frame 11.

Next, the work using the reversible plow to which the present invention is applied will be described. First, mounting the tractor via a three-point link is similar to the conventional method. Then, the bottom to be worked, in other words, the bottom which is on the lower side, the deep plowing bottom 13 is driven by the extension of the hydraulic cylinder 17 and lowered to the lower side.

Since the shallow plowing bottom 12 is fixedly mounted, the position does not move, and only the deep plowing bottom 13 moves in the vertical direction to a position suitable for work.
At this time, another deep plowing bottom 1 is attached to the movable beam 14.
3 is attached, and this deep plowing bottom 13 moves in a direction closer to the bottom frame 11.

Therefore, in the working state, the lower deep plowing bottom 13 is in the working state, and the upper deep plowing bottom 13 is lowered toward the bottom frame 11 to lower the center of gravity.

Further, when the work is placed on the ground without any work, both bottom bottoms 12 and 13 are stable in contact with the ground. Therefore, in this case, the fixed shallow bottom 12 is fixed.
Bottom deep plowing bottom 1 so that the bottom surface is aligned with
By raising 3, in other words, the bottom frame 11
The bottom surface of the bottom to be grounded is brought into the same plane by bringing the bottom surface into contact with.

In the above description, the upper and lower relations have been described with reference to FIG. 1, but the reverse is true in the reversed state, and, for example, the bottom 13 rises up due to the extension of the hydraulic cylinder 17, and the bottom 13 in the contracted state. Will drop to the working position.

In the above description, the present invention is applied to the two-stage plow, but the present invention is not limited to this, and it can be applied to a reversible standard plow. It is possible to drive not only the manual type but also the hydraulic cylinder 17 in conjunction with the expansion and contraction of the reversing cylinder.

Further, the moving stroke of the deep plowing plow can be controlled by controlling the stroke of the hydraulic cylinder 17.

As is apparent from the above description, according to the reversible plow of the present invention, which can lower the center of gravity, the upper and lower bottoms are connected via a movable beam, and the movable beam is connected to the bottom frame. Since it is movable in the direction perpendicular to the plane containing the frame, lowering the lower bottom inevitably lowers the upper bottom as well, lowering the center of gravity of the entire plow device, and working in a stable state. You can

[Brief description of drawings]

FIG. 1 is a side view of a reversible plow of the present invention.

FIG. 2 is an enlarged side view of a movable beam and a guide rail portion.

FIG. 3 is a rear view of FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

[Explanation of symbols]

 10 Reversible Plow Device 11 Bottom Frame 12 Shallow Plowing Bottom 13 Deep Plowing Bottom 14 Movable Beam 15 Guide Rail 16 Connecting Plate 17 Hydraulic Cylinder 18 Front Frame 19 Coater 20 Rotating Shaft 21 Mast Frame 22 River Scylinder 23 Cylinder rod 24 Mounting frame 25 Lower pin mounting pin 30 Support mechanism 31 Support plate 32 Support plate 33 Fixing plate 34 Fixing plate 35 Support pin 36 Support pin 37 Safety bolt

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[Procedure amendment]

[Submission date] August 18, 1993

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] Figure 5

[Correction method] Added

[Correction content]

FIG. 5 is a side view of FIG.

Claims (3)

[Claims] 1. A reversible plow in which bottoms are attached to the top and bottom of a bottom frame and can be reciprocally cultivated by reversing the bottom frame. A reversible plow capable of lowering the center of gravity, comprising a connecting member for connecting the upper and lower support members and a drive source for driving the bottom. 2. The reversible plow capable of lowering the center of gravity according to claim 1, wherein the drive source is operated in conjunction with the bottom inversion drive. 3. The river according to claim 1, which is applied to a deep plowing bottom of a two-stage plowing plow.
Sible plow.