JP4653879B2 - Subsoil digger plow working machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a subsoil working machine used for agricultural work, and more particularly to a subsoil digger plow working machine that plows and reverses a soil layer or a subsoil layer.
[0002]
[Prior art]
A conventionally known subsoiler work machine is used by being mounted on a tractor, and is constructed by attaching one or several knife-type beams orthogonally to the work machine frame. A blade edge (triangular edge portion) suitable for subsoil crushing is formed in the working direction. This subsoiler work machine excavates the subsoil layer including the soil formation layer to form a slit-like groove space, and thereby discharges excess water from the subsoil layer.
[0003]
The beam in the subsoiler work machine as described above breaks this into the subsoil layer, for example, into the subsoil layer, and quickly penetrates the excess rainwater into the soil layer. Furthermore, it is used as a maintenance management work machine for field environment for promoting drainage. In recent years, a subsoiler work machine in which a part of the subsoil layer is dug up to the soil formation layer to regenerate the subsoil is also known.
[0004]
In this working machine, it is a knife-type beam that directly works on the soil in the field, and the portion of the beam that directly hits the excavated soil is worn significantly as the work progresses. Therefore, the wear of the beam wears while the blade edge is curved inward from the original curved edge, and cannot function as a beam. However, only the blade edge of the beam is worn, and the beam body still retains sufficient strength.
[0005]
However, if the drilling function is lost, the beam can only be recovered by exchanging the beam, and the replaced beam is forcibly discarded. In addition, when the soil of the beam is weakened on the subsoiler work machine or when the blade edge is thick, the excavated soil is pushed up to the surface of the field, and later work is performed in a paddy field where the leveling is good. Cause trouble. Therefore, in order to prevent wear of the beam and extend its life, a protector is attached to the beam so that the edge of the beam is not directly engaged in excavation, and thus the edge of the beam is worn. It is performed to prevent this.
[0006]
There is also a subsoiler work machine that moves the soil excavated by the chisel at the beam tip to the surface layer to improve the soil. In this case, a flat excavated soil curved along the edge of the blade formed in the beam An excavation board is attached to the beam. The excavated earth plate has a flange for fixing to the beam with bolts and nuts to the beam and is detachable.
[0007]
[Problems to be solved by the invention]
However, these beam protectors or excavated soil excavation plates have groove-shaped (U-shaped cross-section) flange portions sandwiching the left and right sides of the beam, and bolts with bolt insertion holes drilled in the flange portions on the side surfaces of the beam Since it is a detachable structure that is fastened with bolts and nuts together with the holes, for example, the upper and lower sides and the middle part thereof are fastened on both the left and right sides of the main body.
[0008]
However, in the fastening structure as described above between the beam and the beam protector or the excavated soil earth plate, the bolt is inserted into the bolt hole and the number of times of tightening with the nut increases, which is complicated and time-consuming. Therefore, since there is a tendency to avoid replacement work of the beam protector or the excavated earth plate, the desorption structure must be simplified. If the desorption work is simplified, its use is promoted.
[0009]
Then, an object of this invention is to provide the simple attachment or detachment structure of the beam protector in a subsoiler work machine, or a digging earthing board.
[0010]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention provides a subsoiler work machine configured by attaching a beam having a chisel at a lower end to a work machine frame provided with traction means, and excavating the beam along its edge. An earthen earth plate or beam protector is attached, and this excavated earthen earth plate or beam protector forms leg portions projecting to the beam side on either of the left and right sides near the upper and lower ends of the main body. The part has a bolt insertion hole which is in contact with one side of the beam and matches the bolt hole drilled in the beam, so that the beam protector or excavated earth plate can be attached to and detached from the beam. When the beam protector is turned upside down, the upper end leg is placed on one side of the beam and the lower end leg is placed on the other side of the beam. Is matched the hole and bolt holes, and inserting bolts, by fastening with a nut at the side of the beam, the desorption operation is simplified and faster.
[0011]
In addition, by interposing a spacer provided at a predetermined interval between the legs between the excavated earth excavation plate and the beam, the excavated earth excavation plate can be stably fixed, while the beam tip portion It is possible to prevent a space and a step from being generated between the chisel and the excavated earth plate.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. In these drawings, reference numeral 10 denotes the entire subsoil digger plow working machine, and there is a working machine frame 11 that extends in a predetermined length in the direction orthogonal to the working direction and constitutes the working machine. A plurality of beams 20 are attached at their upper ends in spaced-apart arrangement. The beam 20 is curved toward the working direction side to form a blade edge 21A, and a chisel 24, a crushed soil wing 25, and a stand 26 used for storing the working machine are attached to the lower end of the beam 20.
[0013]
The work machine frame 11 is formed of a square-shaped pipe-like member, and its cross-section diagonal line is oriented in the vertical direction, and is arranged in a horizontal state as a whole. Beams 20 are attached to both end portions and the center position of the work machine frame 11 via beam holders 12 respectively. The beam holder 12 is composed of a pair of front and rear holders 12A and 12B, and has a construction in which the work machine frame 11 is sandwiched from the front and rear directions and fastened by bolts 13. Further, the work machine frame 11 is formed with a pair of arm plates 36 projecting in the work progressing direction via reinforcement plates 37, and the arm plates 36, 36 have hitch pins 35, 35, and hitch pins 35, 35. Is connected by a connecting rod 38.
[0014]
Of the holders 12, the rear holder 12 </ b> B has a flange 12 </ b> X or 12 </ b> Y extending to the rear of the work machine frame 11, and the upper end of the beam 20 is fixed to each of the flanges 12 </ b> X, 12 </ b> Y, 12 </ b> X. The flanges 12X and 12Y are each formed of two plates in order to fasten the bolt 14 inserted into the bolt hole 22 drilled in the upper end portion of the beam 20 with the nut 21X across the upper end portion of the beam 20. . Further, among the holders 12, the rear holder 12B of the holder 12 located in the central portion extends further rearward than the flange 12X, and the beams 2O are disposed at both ends of the work machine frame 11 in a side view. It is in a state of being positioned behind the other beam 2O.
[0015]
A mast 31 is erected as an upper link hitch portion 30 for attaching an upper link such as a tractor at the center of the work machine frame 11, and the mast 31 is formed by a pair of plate bodies 31A and 31A. In addition, a hitch portion 34 pivotally attached to the top portions 31B and 31B by a pin 33 is provided. The hitch portion 34 is composed of a pair of plates, and a hitch hole 32 is formed at the end of the hitch portion 34 by a tube connecting the two plates, and a pivot point by a pin 33 and a hitch hole A pin hole 32 </ b> A for changing the posture of the work machine is formed at an intermediate position with respect to 32. Pin holes 32 </ b> X and 32 </ b> Y that match the pin holes 32 </ b> A are formed in the top portion 31 </ b> B of the mast 31.
[0016]
By selecting one of the pin holes 32X and 32Y, the posture of the hitch portion 34 can be selected. For example, when the pin hole 32X is selected and the pin is passed through the pin hole 32A, it is in the working posture, and when the pin hole 32Y is selected, the final lift height in the posture in which the entire working machine is lifted. It is possible to prevent the rear end of the work implement from interfering with the dredging or the road surface when the work implement is attached and the vehicle travels on the road or moves over the reed.
[0017]
The beam 20 is provided with excavated soil earth plates 40 along the curved blade edges 21A. That is, the mounting posture of the excavated earth generating plate 40 is clear from FIGS. In other words, the excavated earth generating plate 40 is a flat plate having a predetermined width drawn along a curved blade edge 21A of the beam 20, and has a main body 41 at the lower portion thereof, and upper and lower end portions ( Leg portions 42, 42 are integrally formed in a point-symmetric arrangement at both end portions) and project only on one side of the upper end portion and the lower end portion of the main body 41 , and these leg portions 42, 42 are formed on the beam 20. It fits within the width.
[0018]
The leg portion 42 has a bolt insertion hole 42 </ b> X that matches the bolt hole 23 formed in the beam 20. The bolt insertion hole 42X is preferably a countersink so as to avoid the bolt head from receiving soil resistance. Therefore, in a state where the excavated soil earth plate 40 is attached to the beam 20 with the bolts 44, the leg portion 42 is arranged on one side of the beam 20 and the nut 45 is arranged on the other side, respectively. The plate 40 and the beam 20 are coupled.
[0019]
A spacer 46 is interposed between the excavated soil earth plate 40 and the beam 20 in order to prevent a step between the excavated earth earth plate 40 and the chisel 24. Since the rear end portion of the chisel 24 is slightly higher than the blade edge 21 </ b> A of the beam 20, the spacer 46 has the front portion of the main body 41 increased in height for the purpose of matching the height. Since a gap is formed between them, the excavated soil earth plate 40 is disposed in order to maintain a stable fixed state.
[0020]
Next, the function of the excavated earth generating board 40 in the subsoil digger plow working machine according to the present invention will be described. First of all, the excavated earth plate 40 is arranged along the blade edge 21A of the beam 20, for example, the upper leg portion 42 is applied to the left side portion of the beam 20, and the lower leg portion 42 is disposed on the right side of the beam 20. Each bolt insertion hole 42 </ b> X is matched with the bolt hole 23 formed in the beam 20, and the bolt 44 is inserted and fastened with a nut 45. Since the spacer 46 is interposed between the main body 41 and the beam 20, the excavated soil excavation board 40 is stably fixed to the beam 20.
[0021]
In the above description, an example in which the excavated earth generating plate 40 is attached to and detached from the beam 20 has been described. However, the present invention can also be applied to a structure in which a beam protector is attached to and detached from the beam 20. Accordingly, a subsoil digger plow working machine equipped with a beam protector will be described below with reference to FIGS.
[0022]
A beam protector 40A is mounted on the beam 20 along the curved blade edge 21A to protect the blade edge 21A formed on the beam 20. That is, the beam protector 40A has a plate-like main body 41A having a digging blade 43 having a curved line along the curved blade edge 21A of the beam 20, and leg portions are provided at upper and lower ends (both ends) of the main body 41A. 42 and 42 are integrally formed, and each leg portion 42 has a bolt insertion hole 42X. The bolt insertion hole 42 </ b> X matches the bolt hole 23 formed in the side portion of the beam 20 and can be fastened with a bolt 44 and a nut 45.
[0023]
The leg portions 42 and 42 are formed in a point-symmetrical arrangement as in the previous example, and project from one side of the protector main body 41A so that these leg portions 42 and 42 fit within the width of the beam 20. . The bolt insertion hole 42 </ b> X is preferably a countersink so as to avoid the bolt head from receiving soil resistance. Therefore, in a state where the beam protector 40A is mounted on the beam 20, the leg portion 42 is disposed on one side of the beam 20 and the nut 45 is disposed on the other side, so that the beam protector 40A and the beam 20 are coupled. .
[0024]
Further, the main body 41A is formed with digging blades 43Y and 43Z having a substantially "<" shape in side view along the front edge in the work progress direction, and edge portions 43A and symmetric in the vertical direction about the bending point 43X. 43B is arranged. This bending point 43X is the center position in the entire length direction, and can be attached so that the posture shape of the main body 41A does not change even when it is turned upside down. The excavating blades 43Y and 43Z have a predetermined inclination with respect to the extension line of the other edge portions 43A and 43B, and only the excavating blade located on the lower side performs excavation work during excavation work.
[0025]
【The invention's effect】
As is apparent from the above description, according to the subsoil digger plow working machine of the present invention, the excavated earth digging plate or the beam protector is detachably attached to the beam, and the detachment work is performed by the legs at the upper and lower ends. Is applied to one side of the beam, the bolt insertion hole is aligned with the bolt hole of the beam, the bolt is inserted, and the other side is fastened with a nut. The work of detaching the earth plate or beam protector is facilitated. In addition, since the spacer is interposed between the excavated earth generating plate and the beam, it can be mounted without a step difference from the chisel, and can be operated in a stable posture without being deformed by the load.
[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 of a subsoil digger plow working machine according to the present invention.
FIG. 5 is a rear view of the excavated soil earth plate of the subsoil digger plow working machine according to the present invention.
FIG. 6 is a side view of a beam protector of a subsoil digger plow working machine according to the present invention.
FIG. 7 is a front view of a beam protector of a subsoil digger plow working machine according to the present invention.
FIG. 8 is a plan view of a beam protector of a subsoil digger plow working machine according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Subsoil digger plow working machine 11 Working machine frame 12 Beam holder 20 Beam 21A Blade edge 23 Bolt hole 30 Upper link hitch part 31 Mast 31A Plate 31B Top part 32X, 32Y Pin hole 34 Hitch part 40 Excavation earth-and-soil board 41 Main body 42 Leg portion 42X Bolt insertion hole 43A, 43B Edge portion 43X Bending portion 43Y, 43Z Excavation blade 44 Bolt 45 Nut 46 Spacer

Claims (2)

A sub-soil digger constructed by attaching a beam having a chisel at the lower end to a work machine frame provided with a traction means , and to which a drilling earth and sand plate is detachably attached along the edge of the beam. In the plow work machine,
The excavated earth generating plate is a flat plate having a predetermined width drawn along a curved blade edge of the beam, and moves the soil excavated by the chisel to the surface layer. A leg portion projecting from one side surface of the beam to the beam side, and a leg portion projecting from the other side surface of the lower end of the main body to the beam side,
These leg portions respectively contact one side surface of the upper end portion of the beam and the other one side surface of the lower end portion of the beam, and a bolt insertion that matches a bolt hole formed in the beam is inserted in the corresponding contact portion. A hole is drilled,
A sub-soil digger characterized in that a spacer provided between the leg portion at the upper end and the leg portion at the lower end is interposed between the excavated earth plate and the beam. Plow work machine. It is a subsoil digger plow working machine according to claim 1, wherein the excavated earth digging plate is removed, and a beam protector is attached instead of the excavated earth digging plate.
The beam protector has a plate-shaped main body having a digging blade and a curved line along a curved blade edge of the beam, and a leg portion protruding from one side surface of the upper end of the main body toward the beam side; A leg projecting from the other side of the lower end of the main body to the beam side;
These leg portions respectively contact one side surface of the upper end portion of the beam and the other one side surface of the lower end portion of the beam, and in the corresponding contact portions, bolt insertion holes that match the bolt holes formed in the beam. Subsoil digger plow working machine, characterized in that is drilled .

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