JP2002112601A - Subsoil digger plow-working implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a subsoil digger plow-working implement capable of plowing, plucking soil and throwing soil away and the like with a stable posture and a stable depth. SOLUTION: This subsoil digger plow-working implement has a construction comprising setting a beam 20 having a chisel 24 at its lower end, wherein a hitch pin-hole of a mast is extended along the working direction and the hitch pin can move along the hole and so the posture of the working implement and the working depth are detected from the moved position of the hitch pin and thereby controlled by the output of a lifting mechanism equipped on the tractor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a subsoil digger.
More specifically, the present invention relates to a subsoil digger-plow working machine for improving the stability of an excavation work posture and stabilizing the plowing depth.

[0002]

2. Description of the Related Art Conventionally known subsoiler working machines are:
Generally, it is used by being attached to a tractor. Its function is to form a slit-shaped space with a knife-shaped beam from the soil layer to the lower layer, so that the hardened layer (tillage layer) By crushing the soil layer, the water permeability and drainage of the field can be improved.

[0003] In other words, it can be said that the conventional subsoiler working machine as described above can only be expected to have a function of improving water permeability and drainage in the field. However, even with this function alone, the water environment in the portion below the soil layer in the field can be considerably improved. Therefore, the subsoiler working machine can be rephrased as a field moisture management working machine without any objection.

[0004]

However, the above-described subsoiler working machine is effective as a field management working machine based on moisture management. However, once work is completed, plowing is performed on a subsequent field, Furthermore, work such as crushing work is required. In other words, the subsoiler working machine is only one working machine for improving the environment of the field. Therefore, the present invention aims to save labor in tilling work by improving the above-described subsoiler working machine in terms of function and further improve the efficiency of the entire agricultural work. It is.

[0005]

In order to achieve the above-mentioned object, a sub-machine constructed by attaching an excavation excavation claw via a beam to a working machine frame provided with mounting means for a tractor or the like. In a soil digger plow working machine, an excavating excavation claw equipped on the beam has a chisel at a tip end, draws an arc depressed from a lower end portion toward an operation progressing direction along an upper end portion, and has an upper end portion. In the above, a reversal portion provided with an excavation function in either the left or right direction is formed, and as the excavated soil rises as the work progresses, it can be thrown to the side in the work progress direction, and the beam is Extends backward in the working direction,
The work machine is provided with a hill located in a plane including the chisel and configured to stabilize the cultivation depth. The posture can be kept constant. Further, in a subsoil digger plow working machine configured by attaching an excavation excavation claw via a beam to a working machine frame provided with a mounting means for a tractor or the like, the front of the working machine frame is provided. There is a mast in the center where the upper link is attached, and the hitch hole of this mast is long in the work progress direction, and it is configured to detect the forward and backward movement of the hitch pin and control the tractor plowing depth. Accordingly, the depth of the excavation work is always constant, the amount of soil excavated on the surface of the field is also constant, and the field work such as the leveling work later becomes easy.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In these figures, reference numeral 10 denotes an entire sub-soil digger-plow working machine (hereinafter abbreviated as a working machine). The working machine 10 has a working machine frame 11 extending in a direction orthogonal to the working direction. The work machine frame 11 has one beam at the center and two beams at both ends. The beam 12 at the center is located rearward, and the beams at both sides are positioned. Reference numeral 13 is at the front position and is arranged at regular intervals in the working width direction. These beams 12 and 13 are curved in an arc from the lower end to the upper end in the working direction to form edges 12A and 13A, and arcs are formed along these edges 12A and 13A. Is attached, and this excavation plate 20 has little friction with the soil,
A friction-resistant plate 21 made of plastic with little adhesion of soil is formed by being backed by a reinforcing plate 22 made of a metal plate. A chisel 23 is provided at a lower end portion of the excavating plate 20 with a fixing plate 23A protruding from the back side of the chisel 23 with respect to the reinforcing plate 22 and a sandwiching plate 22A arranged so as to sandwich both sides of the chisel. This chisel 23 is attached and formed.
Is a surface that is continuous with the surface of the friction-resistant plate 21.

Further, at the upper end of each excavating plate 20, an excavating portion 20A is formed which is twisted so that the excavation can be inverted, that is, thrown away. The excavated portion 20A has a function of reversing the debris rising along the surface of the excavated plate 20 to the side of the work progress.

Further, near each lower end of each beam 22, there is provided an arm 24 extending rearward in the working direction, and at the rear end of this arm 24 is formed a crest 23 on which a chisel 23 is formed. A hill 25 that can be grounded is attached to the helmet.
The hill 25 is long in the working direction and has a slightly upright guide portion 25A at its tip. As a result, it is possible to smoothly slide in the movement accompanying the work. Each excavating plate 20 has the same configuration,
Only the arrangement positions are different. The beam 22 is attached to the work machine frame 11 by beam holders 16A and 16B.
6A and 16B sandwich the work machine frame 11 from the front and rear, and the beam holder 16B has a plate portion 16C extending rearward, and the upper end of the beam 22 is provided between the plate portions 16C. The part is inserted and fixed.

A mast 14 for hitching with the tractor is provided upright at the center position of the working machine frame 11, and the top link of the tractor can be hitched at the top end of the mast 14. I can do it. The mast 14 is configured by arranging two plate-shaped members symmetrically, and the hitch end of the upper link U can be inserted between the two members. The mast 14 is inclined toward the working direction, and a lower link hitch for hitting the lower link L is provided at a lower position of the mast 14.
2 are protruded. The base of the lower link hitch arm 15 is integrally fixed to the working machine frame 11 via a reinforcing plate 15A. The lower link L of the tractor can be hitched at the distal end position of the lower link hitch arm 15.

Further, the hitch hole 141 of the upper link U of the mast 14 is long along the working direction and has a slightly arcuate shape. Therefore, the hitch pin P having hitch the upper link L can move along the hitch hole 141 depending on the working posture of the working machine, and the movement state will be described in detail in the operation description.

This work machine is mounted on a tractor to perform work. A lower link L is mounted on a lower link mounting pin Q, and an upper link is mounted on the hitch pin P to maintain a workable posture. be able to. In the work in the field, excavation, inversion, and throwing are performed by the excavation plate 20 at a deep position in the field. With the start of the operation, the excavation plate 20 dives deeply by the suction action, and , Excavate and release. At this time, it is desirable that the plow bottom is formed along a plane, but in actuality, since the tractor moves along the surface of the field, the amount of soil excavated on the field surface also changes. Does not become a stable planar shape.

Therefore, in the present invention, it is particularly important that the hitch pin P of the upper link U moves along the working direction by making the hitch hole of the mast 14 long, and the movement of the hitch pin P By detecting the working posture of the working machine 10 from the above, the plowing depth is controlled. That is, a state in which the hitch pin P has moved toward the tractor,
In other words, in a state in which the work implement 10 is at the front position Pf of the hitch hole 141, the work implement 10 is lowered forward and raised. In order to correct and control this posture, it is necessary to make the excavation angle of the chisel 23 slightly upward in front of the work machine 10, in other words, the chisel 23. The output of the lift mechanism 100 provided in the tractor is used for this attitude control. As shown in FIG. 6, this mechanism can input the attitude signal obtained from the upper link U to the detector 101 and input the inclination of the lever 102 to the valve driver 110. The switching of the port of the switching valve 111 is selected by the valve driver 110. That is, in order to bring the work implement 10 into the forward-upward posture, the output of the lift mechanism 100 needs to be set to the upward output.
A signal is output from the valve driver 110 so that the port is brought to the up position. Thereby, the working machine is lifted up. This lift-up also causes the position of the hitch pin P to change and move gradually to the center position. In other words, during this time, the lift cylinder 120 continues the extended state, and the lift-up state is continued until the position of the hitch pin P returns to the center. Actually, the speed is reduced as the position of the hitch pin P approaches the center position. To this end, oil flow control is also performed, but the description is omitted.

In this attitude control, there is no problem if the work machine 10 can be lifted up vertically, but the excavation plate 20 including the chisel 23 and the like is in the soil, so that the vertical ascent is almost impossible. Since the lift trajectory of the lift mechanism 100 is also a lift-up that draws an arc, the lift-up is performed with the heel 25 attached via the arm 24 extending behind the beam 22 as a fulcrum. Therefore, as compared with the actual lift-up operation length with respect to the lower link L, the lift amount at the chisel 23 is small, and the lift-up operation amount does not directly increase the chisel portion. A flat excavation groove such as a horizontal one can be formed as a whole while drawing irregularities.

When the posture of the work machine 10 changes to a lowering state instead of a lowering state, the hitch pin P changes and moves toward the rear side, that is, toward the rear position Pr in the hitch hole 141. At this time, the posture of the work machine 10 is in a state opposite to the posture in FIG. 7 described above. Then, the movement of the upper link U accompanying the change in the posture of the work machine moves the lever 102 of the detector 101, and the lift mechanism 100 acting on the lower link with respect to the valve driver 110.
Signal to lift down instead of lift up. Thereby, the port of the switching valve 111 is switched, and the lift cylinder 120 is driven in the contraction direction.

Therefore, the lift mechanism 100 operates in the direction of lowering the work machine, and the work machine is moved through the lower link L so that the front end is lowered and the posture approaches the horizontal state. Lift cylinder 12
0 continues the movement in the contraction direction, and continues the operation so that the hitch pin P is at the fixed position of the hitch hole 141, in other words, the center position. When the hitch pin 141 reaches the center position, the control drive by the lift mechanism 100 ends.
At this time, the heel 25 does not function as a fulcrum in the lever movement.

As described above, since the working posture of the working machine 100 is controlled by using the lift mechanism of the tractor, the cultivation depth is constant, and the plowing, reversing, and throwing work are performed in a state where the working posture is stable. be able to.

In the above description, the position change of the hitch pin P, in other words, the detector 101 is connected via the upper link U.
Is shown, but the position change, which is the movement of the hitch pin P, is detected by the detector 101 via a wire or the like.
It is also possible to transmit to. In this case, it is necessary to use the outer wire as a case and push it against the inner wire inside the case to cause a pulling action. Further, the movement of the hitch pin P is detected as a current change in a potentiometer directly or through a wire or a lever,
It is also possible to supply this signal to the valve driver to select the port of the switching valve 111.

[0018]

As is apparent from the above description, according to the subsoil digger plow working machine of the present invention, a hill as a grounding member is provided behind the beam in the work traveling direction, and the mast upper is provided. Since the hitch hole of the link is formed as a long hole along the working direction so that the hitch pin can be moved, the posture change of the working machine is controlled by the operation of the lift mechanism.
Is controlled by lift-up and lift-down with the fulcrum as a fulcrum, so that the work machine as a whole can be controlled in attitude by relatively small vertical movement, contributing to stable work and constant plowing depth. it can.

[Brief description of the drawings]

FIG. 1 is a front view of a subsoil digger-plow working machine according to the present invention.

FIG. 2 is a plan view of a subsoil digger-plow working machine according to the present invention.

FIG. 3 is a side view of a subsoil digger-plow working machine according to the present invention.

FIG. 4 is a side view of a beam part of the subsoil digger-plow working machine according to the present invention.

FIG. 5 is a plan view of a beam portion of the subsoil digger-plow working machine according to the present invention.

FIG. 6 is an explanatory view of a tractor lift mechanism used for posture control of the subsoil digger-plow working machine according to the present invention.

FIG. 7 is an explanatory diagram of a working posture of the subsoil digger-plow working machine according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Subsoil digger plow work machine 11 Work machine frame 12, 13 Beam 14 Mast 15 Arm 20 Earth excavation board 21 Upper end 21A Blade edge 23 Bolt hole 30 Traction machine connection part 31 Mast 31A Plate 31B Top 32X, 32Y Pin hole 34 Hitch 40 Drilling excavation claw 41 Main body 42 Leg 42X Bolt insertion hole 43 Warp 44 Bolt 45 Nut 46 Spacer 47 Ear 48 Distributing protrusion

Claims (2)

[Claims] 1. A sub-soil digger plow working machine constructed by attaching an excavating excavation claw via a beam to a working machine frame provided with mounting means for a tractor or the like. The equipped excavation excavation claw has a chisel at the tip, draws a concave arc from the lower end toward the work progress direction along the upper end, and at the upper end, the excavation function is given in either left or right direction Inverted part is formed,
As the excavated soil rises as the work progresses, the excavated soil can be thrown to the side in the work progress direction, the beam extends rearward in the work progress direction, and has a hill located in a plane including the chisel, A subsoil digger-plow working machine characterized in that it is configured to stabilize plowing depth. 2. A subsoil digger plow working machine comprising a working machine frame provided with mounting means for a tractor or the like, and an excavation excavation claw attached to the working machine frame via a beam. There is a mast on which the upper link is attached at the forefront center of the mast, and the hitch hole of this mast is elongated in the work progress direction, and the movement of the hitch pin in the front-rear direction can be detected and the plowing depth can be controlled by the tractor lift mechanism. 2. The subsoil digger-plow working machine according to claim 1, wherein the subsoil digger plow working machine is configured as described above.