JP2012019735A - Tilling operation claw - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively reduce digging resistance to a respective component or a traveling vehicle in a tilling operation claw.SOLUTION: The tilling operation claw includes: a chisel 2 arranged at an edge of a digging direction side; and a guide plate 3 arranged to be continuously at the edge of an opposite digging direction side of the chisel 2 for guiding the dug soil dug by the chisel 2 to a ground surface direction. The chisel 2 includes a space 2B for reducing digging resistance formed by notching both or either side of the edge of the direction merging with the digging direction toward the direction merging with the digging direction.

Description

  The present invention relates to a tilling work claw used for a tilling work device that cultivates a field and crushes subsoil to improve air permeability and drainage of the field.

  The tilling work pawl used for the tilling work device is used to plow the tilling work device with a traveling vehicle such as a tractor while being inserted into the soil, and to plow the farm field, and the subsoil (impermeable layer) ) To improve the air permeability and drainage of this field.

  The thing of the following patent document 1 is equipped with a chisel in the lower end part of the beam which draws the arc which the plowing work nail | cave dented toward the work advancing direction along the upper end part from the lower end part, A reversal part having a digging function is formed in the direction of, and as the excavated soil rises as the work progresses, it can be released to the side of the work progress direction. A wing-shaped excavation plate is attached to the rear position of the chisel and the rear edge of the lower end of the beam to crush the side wall of the excavation space excavated by the tilling work claws and expand the excavation space.

JP 2002-204602 A

  According to the prior art of Patent Document 1, it is possible to form an excavation space (groove) that promotes permeation drainage, as well as excavation of the subsoil portion, and lift this up to the top soil, and also the left and right direction of work progress As a result, it is possible to reduce excavation resistance in excavation work, promote the regeneration of the subsoil layer, and facilitate the leveling of the surface of the topsoil, which is performed widely later. .

  Further, in the prior art of Patent Document 1, the shape of the beam to which the chisel is attached is such that an arc that is recessed from the lower end portion toward the work progress direction along the upper end portion, or the excavated soil is advanced by the reversing portion. By making it possible to release to the side of the direction, the excavation resistance acting on the tilling work pawl is reduced, and the burden on each component and the traveling vehicle in the tilling work pawl is reduced.

  However, in the prior art disclosed in Patent Document 1, excavation resistance acts first during excavation, and excavation is performed on a hard subsoil site, among the constituent elements of the tilling work claws. With regard to the chisel which is the site where the greatest excavation resistance acts, and further about the excavation plate which is the site where the great excavation resistance acts by crushing the side wall of the excavation space excavated by the chisel and the beam during excavation No measures have been taken to reduce excavation resistance during excavation work.

  That is, for the beam and the reversing part, the excavated soil of the subsoil portion excavated by the chisel is lifted and released to the side in the working direction. The excavation resistance is lower than that of the excavation resistance, and the effect of reducing the burden on each component and the traveling vehicle in the tilling work claws is not so effective.

  This invention makes it an example of a subject to cope with such a problem. That is, it is possible to effectively reduce the digging resistance applied to each component and traveling vehicle in the plowing work claw, thereby improving the durability of each component in the plowing work claw, and using a traveling vehicle with low output In addition, by improving the durability of each component of the tilling work pawl, it is possible to reduce maintenance costs such as repair and replacement of each component of the tilling work pawl, and to use a low-powered traveling vehicle. Thus, it is an object of the present invention that fuel cost can be reduced, efficient excavation work can be performed even when a traveling vehicle with low output is used.

  In order to achieve such an object, a tilling work claw according to the present invention comprises at least the following configuration.

  At least a chisel arranged at an end portion on the excavation direction side and a guide plate arranged so as to be continuous with the end portion on the anti-excavation direction side of the chisel and guiding excavated soil excavated by the chisel toward the ground surface The chisel includes an excavation resistance reducing space formed by notching both or one of the end portions on the direction side intersecting the excavation direction in the direction intersecting the excavation direction.

  At least a chisel arranged at an end portion on the excavation direction side and a guide plate arranged so as to be continuous with the end portion on the anti-excavation direction side of the chisel and guiding excavated soil excavated by the chisel toward the ground surface And is arranged so as to protrude in the direction opposite to the excavation direction side of the chisel and in the direction side intersecting the excavation direction of the chisel, so as to expand the excavation width of the chisel The chisel has an excavation resistance reducing space formed by cutting out both or one of the end portions in the direction intersecting the excavation direction in the direction intersecting the excavation direction, The rotation angle is provided around a direction intersecting the excavation direction so that the facing angle of the facing surface with respect to the excavation direction can be changed.

  By having such characteristics, the present invention has the following effects. In other words, since it has a chisel equipped with a space for reducing excavation resistance or a drilling plate that can change the facing angle of the facing surface with respect to the excavation direction, each component and traveling vehicle in the tilling work claw Can effectively reduce the drilling resistance. By effectively reducing the excavation resistance, it is possible to improve the durability of each component in the tilling work claw and to use a traveling vehicle with low output. By improving the durability of each component of the tilling work pawl, maintenance costs such as repair and replacement of each component of the tilling work pawl can be reduced, and fuel costs can be reduced by using a low-powered traveling vehicle. Can be reduced, and efficient excavation work can be performed even if a low-powered traveling vehicle is used.

The perspective view which shows the state equipped with the tilling work nail | claw which concerns on this invention in the tilling work apparatus. The principal part enlarged view of FIG. FIG. 3 is a view taken along line (3) in FIG. In the side view of FIG. 3, the state which has arrange | positioned the excavation board for normal soil is shown. (5)-(5) sectional view taken on the line of FIG. In the side view of FIG. 3, the state which has arrange | positioned the excavation board for hard soil is shown. It is a block diagram of a chisel, (a) is a top view, (b) is the (b)-(b) sectional view taken on the line of (a). It is a block diagram of a excavation board, (a) is a top view, (b) is a rear view, (c) is a side view.

  Hereinafter, an embodiment of a tilling work claw of the present invention is described based on a drawing. The configuration of the plowing work claw exemplified below does not limit the present invention. In the following description, the excavation direction is the front, the anti-excavation direction is the rear, and the direction intersecting the excavation direction is the width direction.

  FIG. 1 is a configuration diagram of a tilling work device A to which a tilling work claw 1 of the present embodiment is attached. This tilling work device A is disposed behind the frame A1, a connecting part A2 connected to a traveling vehicle (not shown), a bracket A3 supporting the tilling work pawl 1, and a bracket A3. A cage roller A4 for further crushing the excavated soil excavated with the claws 1 is provided.

  Two brackets A3 are provided in front of the frame A1 and three in the rear. These brackets A3 are provided at regular intervals in the width direction so that the tilling work claws 1 do not overlap in the front-rear direction. The number of brackets A3 is not limited to the exemplified number.

  The cage roller A4 has a length in the axial direction that is substantially the same as the excavation width of the three tilling work claws 1 in the rear, and the tilling work device A accompanying traveling in the excavating direction of the traveling vehicle described above. At the time of movement, it is pivotally supported so as to be rotated by being caught on the unevenness of the farm scene or a lump.

  In such a tilling work device A, as the traveling vehicle travels in the excavation direction, the tilling work claws 1 excavate the soil, and the excavated soil and the soil blocks excavated by the tilling work claws 1 are removed. The farm is cultivated by crushing by rotation of the cage roller A4.

  Next, the tilling work claw 1 of this embodiment will be described. 2-6 is a block diagram of the tilling work nail | claw 1. FIG. The tilling work pawl 1 includes a chisel 2 disposed at the front, a guide plate 3 disposed so as to be continuous with the rear end of the chisel 2, an excavation plate 4 disposed below the chisel 2, and the chisel 2 The guide plate 3 and the excavation plate 4 are integrated, and a support bracket 5 for attaching to the bracket A3 is provided.

  The chisel 2 and the guide plate 3 are arranged so as to be continuously inclined with the front end (left side in FIG. 4) of the chisel 2 being the lowest position and the rear end (right side in FIG. 4) of the chisel 2 being the highest position. In addition, the excavated soil excavated by the chisel 2 is guided along the slope so as to reach the ground of the field by the guide plate 3. The excavation plate 4 is disposed in an inclined shape having the front end (left side in FIG. 4) as the lowest position and the rear end (right side in FIG. 4) as the highest position, and crushes the subsoil on both sides of the chisel 2 in the width direction. Along with this crushed subsoil, excavation is performed so as to separate the lower and upper soils.

  The chisel 2 is an iron plate-like one, and the front end portion is formed in a tapered shape, and the excavating portion 2A in which the blade portion 20A is formed in the entire periphery, and the width direction behind the excavating portion 2A Excavation resistance reducing space 2B formed by cutting out both ends in a circular arc shape so as to extend in the width direction, and a crush crushing plate 2C erected at the center of the surface on the rear end side (see FIG. 7). ). The shape of the excavation resistance reduction space B is not limited to the illustrated shape.

  The excavation part 2A has a tapered shape and a blade part 20A, so that it can be easily pierced even in hard soil and can be excavated so as to cut the soil. The acting excavation resistance can be reduced. The excavation resistance reduction space 2 </ b> B can reduce excavation resistance acting on the chisel 2 during excavation work by allowing a part of the soil excavated by the excavation part 2 </ b> A to escape backward by the above-described configuration.

  In addition, since the narrow portion is formed in the chisel 2 by the excavation resistance reducing space 2B, the excavation resistance of the soil acting on the chisel 2 during excavation work can be reduced. Further, the crushing crush plate 2C crushes so as to cut a clot in the excavated excavated soil. As a result, the excavated soil becomes fine, and thus acts on the guide plate 3 when guiding the excavated soil. Guide resistance can be reduced.

  According to the chisel 2 having such a configuration, the excavation portion 2A, the excavation resistance reduction space 2B, the narrow portion of the chisel 2 by the excavation resistance reduction space 2B, and the crushing plate 2C, excavation resistance acting on the chisel 2 during excavation work. Can be reduced. Therefore, excavation resistance that acts on the tilling work claw 1 during excavation work can be reduced.

  The guide plate 3 is a plate-shaped plate made of iron or hard synthetic resin. The excavated soil excavated by the chisel 2 is turned on the ground side of the field and the chisel 2 by twisting the rear end side in the width direction. It guides to the width direction outside of the excavated site.

  As illustrated, the guide plate 3 is not limited to a form in which the rear end side is twisted in the width direction, but a shape (not shown) or a flat plate in which the center portion in the width direction is bent rearward. It is good also as a shape (not shown).

  The excavation plate 4 is made of iron and has blade-shaped excavation blades 4A and 4A formed in a plane V shape extending obliquely rearward and obliquely downward on both sides in the width direction from the front end. A support body 4B is provided so as to protrude from the center of the upper surface of the excavation blades 4A and 4A and attach the excavation plate 4 to the support bracket 5 (see FIG. 8).

  Further, the excavation plate 4 is disposed in an inclined shape with the front end as the lowest position and the rear end as the highest position so that the upper surfaces of the excavation blades 4A and 4A face the excavation direction. In the following description, the upper surface is referred to as an opposing surface facing the excavation direction, and reference numeral 40 is attached to the opposing surface.

  Excavation blades 4A and 4A have a blade portion 40A formed in the entire front end edge on the upper surface side, making it easy to pierce even hard soil and excavating so as to cut the soil. The excavation resistance acting on the opposing surface 40 of the excavation plate 4 during work can be reduced.

  The support body 4B has two bolt holes 40B and 41B at the top and bottom with the width direction as the axis line on the front side, and one bolt hole 42B with the width direction as the axis line on the rear side, and this bolt hole 40B. , 41B and the bolt hole 42B are passed through the bolt 10 from the support bracket 5 and tightened by the nut 11 to attach the excavation plate 4 to the support bracket 5.

  The bolt holes 40B and 41B are for adjusting the angle of the facing surface 40 of the excavation plate 4, and the support 4B is rotated around the axis of the bolt hole 42B, and the bolt 10 and the nut 11 are located at the position of the bolt hole 40B. The angle of opposition of the excavation blades 4A, 4A with respect to the excavation direction is increased (see FIG. 4), and the excavation blade 4A with respect to the excavation direction is secured by fixing with the bolt 10 and the nut 11 at the position of the bolt hole 41B. The facing angle of 4A is made small (see FIG. 6).

  That is, when excavating soil with normal hardness, as shown in FIG. 4, the facing angle of the facing surface 40 with respect to the excavation direction is large, and when excavating hard soil, it is shown in FIG. 6. Thus, the excavation resistance during excavation work can be reduced by reducing the facing angle of the facing surface 40 with respect to the excavation direction so as to be parallel to the facing surface 40 shown in FIG.

  According to the excavation plate 4 having such a configuration, the excavation resistance acting on the excavation plate 4 during excavation work is reduced by the configuration in which the facing angle of the blade portion 40A and the opposed surface 40 of the excavation blades 4A and 4A with respect to the excavation direction is reduced. can do. Therefore, excavation resistance that acts on the tilling work claw 1 during excavation work can be reduced.

  The support bracket 5 has an upper support 50 formed in a shape along the shape of the back surface extending from the chisel 2 to the guide plate 3 so as to support the back surfaces of the chisel 2 and the guide plate 3, and on the back surface of the upper support 50. Fixed to the lower support 51 formed in a U-shaped cross-section that can hold the bracket A3 and the support 4B from both sides in the width direction, and fixed to the back surface of the upper support 50 on the guide plate 3 side, and fitted to the bracket A3 And a fitting support 52 to be supported.

  In the upper support 50, the chisel 2 and the guide plate 3 are integrally connected by bolts and nuts 50A and 50B. The bolt / nut 50A directly tightens the upper support 50, the chisel 2 and the guide plate 3, and the bolt / nut 50B fastens the upper support 50, the chisel 2 and the guide plate 3 via the bracket A3. In this case, the chisel 2 and the guide plate 3 are removed from the upper support 50 by releasing the tightening of the bolts and nuts 50A and 50B. Further, the bolt / nut 50B also holds the mounting state of the tilling work pawl 1 with respect to the bracket A3, and the tilling work pawl 1 is removed from the bracket A3 by releasing the tightening of the bolt / nut 50B. It is designed to be removed.

  The lower support 51 has a bolt hole 51A corresponding to the bolt holes 40B and 41B and a bolt hole 51B corresponding to the bolt hole 42B, and a bolt bolt 51B is connected to any one of the bolt holes 40B and 41B. The excavation plate 4 can be attached to the lower support 51 by attaching the bolt 10 through the nut 11 and tightening the bolt 10 through the bolt hole 42 </ b> B and the bolt hole 51 </ b> B and fastening with the nut 11.

  The lower support 51 with the excavation plate 4 attached is fitted to the bracket A3 between the back surface of the upper support 50 and the upper surface of the support 4B, and the support 4B is formed by adjusting the angle of the excavation plate 4. A space S for rotating is secured, and when the bracket A3 is positioned in the space S and is fastened and fixed with bolts and nuts 50B, the support 4B can be rotated below the bracket A3. .

  According to the support bracket 5 having such a configuration, the support bracket 5 supports the chisel 2, the guide plate 3, and the excavation plate 4, so that the tilling work claw 1 can be formed into one unit that can be disassembled. . For this reason, the plowing work pawl 1 can be disposed in the plowing work device A by fitting the space S to the bracket A3 and tightening and fixing it with the bolts and nuts 50B. When removing the tilling work claw 1, the tilling work claw 1 can be removed from the bracket A3 by releasing the tightening of the bolts and nuts 50B and pulling it out.

  Therefore, the chisel 2, the guide plate 3, and the excavation plate 4 can be easily attached to and detached from the tilling work apparatus A. Further, since various maintenance such as inspection, replacement, and cleaning of the chisel 2, the guide plate 3, the excavation plate 4, and the support bracket 5 can be performed with the plowing work pawl 1 removed, the various maintenance can be facilitated. it can. Moreover, the plowing work pawl 1 can be replaced in an emergency.

  In addition, the form which attaches the excavation board 4 to the support bracket 5 is good also as a form which makes the support body 4B a cross-sectional U shape, and the lower support body 51 is clamped by the support body 4B.

  According to the plowing work claw 1 of the present embodiment, the excavation resistance applied to the chisel 2, the excavation plate 4, and the traveling vehicle in the plowing work claw 1 can be effectively reduced. By effectively reducing the excavation resistance, the durability of the chisel 2 and excavation plate 4 of the tilling work claw 1 can be improved, and a traveling vehicle with low output can be used. Further, by improving the chisel 2 and excavation plate 4 of the tilling work pawl 1, maintenance costs such as repair and replacement of the chisel 2 and excavation plate 4 can be reduced, and by using a traveling vehicle with low output, fuel costs can be reduced. Can be reduced, and efficient excavation work can be performed even if a low-powered traveling vehicle is used. Moreover, since the tilling work claw 1 is made into one unit that can be disassembled, the attachment and detachment with respect to the tilling work apparatus A and the above-described various maintenance can be facilitated.

  It should be noted that the present invention is not limited to the illustrated embodiments, and can be implemented with configurations within a range that does not deviate from the contents described in the respective claims.

1: Tillage work claw 2: Chisel 3: Guide plate 4: Excavation plate 2B: Excavation resistance reduction space 40: Opposing surface

Claims (2)

  At least a chisel arranged at an end portion on the excavation direction side and a guide plate arranged so as to be continuous with the end portion on the anti-excavation direction side of the chisel and guiding excavated soil excavated by the chisel toward the ground surface The chisel is provided with an excavation resistance reducing space in which both or one of the end portions on the direction side intersecting the excavation direction is cut out in the direction intersecting the excavation direction. Raising nail.   At least a chisel arranged at an end portion on the excavation direction side and a guide plate arranged so as to be continuous with the end portion on the anti-excavation direction side of the chisel and guiding excavated soil excavated by the chisel toward the ground surface And is arranged so as to protrude in the direction opposite to the excavation direction side of the chisel and in the direction side intersecting the excavation direction of the chisel, so as to expand the excavation width of the chisel The chisel has an excavation resistance reducing space formed by cutting out both or one of the end portions in the direction intersecting the excavation direction in the direction intersecting the excavation direction, A tilling work claw characterized by being provided so as to be rotatable about a direction intersecting the excavation direction so that the facing angle of the facing surface with respect to the excavation direction can be changed.

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