JP2022076050A - Repair component of excavation bucket, and excavation bucket - Google Patents

Abstract

To provide a repair component of an excavation bucket which increases efficiency of repair work of an excavation bucket, and an excavation bucket repaired using the repair component.SOLUTION: A repair component (1) of an excavation bucket is mounted on an excavation bucket component (100) obtained by removing a to-be-repaired part of the excavation bucket used in a construction machine, includes a first bottom plate part (10), a pair of first side plate parts (20) erected from both right and left sides of the first bottom plate part, a pair of first side edge parts (26) mounted on the pair of first side plate parts, a cutting edge (30) mounted on the first bottom plate part, a plurality of excavation claws (35) mounted on the cutting edge, and a guide member (40) mounted on at least one of the first bottom plate part, the pair of first side plate parts and the pair of first side edge parts, in which the guide member projects upward from the first bottom plate part, the pair of first side plate parts and the pair of first side edge parts so as to mount the excavation bucket component thereon.SELECTED DRAWING: Figure 1

Description

The present invention relates to a repair part of an excavation bucket and an excavation bucket repaired by using the repair part, and in particular, a repair part of an excavation bucket equipped in a construction machine such as a hydraulic excavator, and a repair part repaired by using the repair part. Regarding excavation buckets.

Construction machines such as hydraulic excavators are equipped with excavation buckets for excavating the ground. When excavating with the hydraulic excavator, the boom and arm are rotated to pierce the excavation claw and cutting edge of the excavation bucket into the ground, and from this state, the excavation bucket is rotated by the tip of the arm. When such excavation work is repeated, the bottom plate and side plates of the excavation bucket are worn and the strength is lowered, so that these worn parts are repaired (for example, Patent Document 1).

Patent Document 1 describes that the bottom plate and the side plate are partially separated according to the worn portion of the bottom plate and the side plate, and the excavation bucket is repaired. Specifically, in Patent Document 1, a bottom plate cutting line is set to be closer to the upper side than the top position line of the bottom plate, and the bottom plate is separated into an upper portion of the bottom plate and a lower portion of the bottom plate, and from the bottom plate cutting line. It is described that each of the left and right side plates is separated into an upper portion of the side plate and a lower portion of the side plate by a side plate cutting line extending perpendicular to each side edge.

Further, in Patent Document 1, the bottom plate lower portion and the left and right side plate lower portions are removed from the excavation bucket before repair, and the bottom plate upper portion, the left and right side plate upper portions, and the left and right sides used in the excavation bucket before repair. It is described to be used leaving the side edges, cutting edges, brackets, and excavation claws. Then, in the repair method described in Patent Document 1, the replacement bottom plate and the replacement side plate are replaced with the removed bottom plate lower portion and the left and right side plate lower portions, and the replacement bottom plate and the replacement side plate are replaced with the bottom plate upper side left in the excavation bucket before repair. Welded to the part and the upper part of the left and right side plates.

Japanese Patent Application Laid-Open No. 2002-294739

By the way, since the excavation bucket is used to pierce the ground from the excavation claw and the cutting edge during the excavation work, by repeating the excavation work, not only the bottom plate and the side plate but also the left and right side edges, the cutting edge, the excavation claw, etc. Wear progresses. Therefore, when only the bottom plate and the side plate are partially repaired as described in Patent Document 1, it is necessary to additionally repair, for example, the left and right side edges and the cutting edge as the excavation work progresses. rice field. As described above, by repairing the worn portion each time as the wear progresses, the work man-hours associated with the repair of the excavation bucket may increase, and the repair work may become inefficient.

The present invention has been made in view of such a problem, and an object thereof is a repair part of a drilling bucket for improving the efficiency of the repair work of the drilling bucket, and a drilling repaired by using the repaired part. To provide a bucket.

In order to achieve the above object, the repair part of the excavation bucket of the present invention is a repair part of the excavation bucket attached to the excavation bucket part obtained by removing the lower part which is the repair target part of the excavation bucket used for the construction machine. , A first bottom plate portion including a flat plate-shaped first flat portion and a first curved portion that curves upward in the rear, and left and right sides of the first flat portion and the first curved portion attached to the first flat portion and the first curved portion. A pair of flat plate-shaped first side plate portions erected from the above, a pair of flat plate-shaped first side edge portions attached to the front side of the pair of first side plate portions, and a pair of flat plate-shaped first side plate portions attached to the front side of the first bottom plate portion. A cutting edge, a plurality of excavation claws attached to the front side of the cutting edge, and at least one of the first bottom plate portion, the pair of first side plate portions, and the pair of first side edge portions. A flat plate-shaped guide member is provided, and the guide member includes the first bottom plate portion, the pair of first side plate portions, and the pair of first side edges so that the excavation bucket component can be attached. It is characterized in that it protrudes upward from the portion.

Further, the excavation bucket of the present invention includes a repair part of the excavation bucket and an excavation bucket part attached to the repair part, and the excavation bucket part is downward in a flat plate-shaped second flat portion and rearward. A pair of a second bottom plate portion including a curved second curved portion and connected to the first bottom plate portion, and the second flat portion and the second curved portion attached to the second flat portion and the second curved portion on both left and right sides of the second bottom plate portion. In an excavation bucket provided with a pair of flat plate-shaped second side plate portions to be coupled to the first side plate portion of the above, the pair is attached to the front side of the pair of second side plate portions and is coupled to the pair of first side edge portions. A pair of flat plate-shaped second side edge portions is further provided, and the excavation bucket component is at least one of the second bottom plate portion, the pair of second side plate portions, and the pair of second side edge portions. It is characterized in that it is coupled to the guide member of the repair part.

The repair parts of the excavation bucket of the present invention include a pair of first side edge portions attached to the front side of the pair of first side plate portions and a first bottom plate portion in addition to the first bottom plate portion and the pair of first side plate portions. It comprises a cutting edge mounted on the front side and a plurality of excavation claws mounted on the front side of the cutting edge. As described above, since the repair part of the present invention is integrally composed of the first bottom plate portion, the pair of first side plate portions, the pair of first side edge portions, the cutting edge, and the excavation claw, the excavation work is performed. If the wear of the excavation bucket progresses as the excavation bucket progresses, the first bottom plate portion, the pair of first side plate portions, the pair of first side edge portions, the cutting edge, and the excavation claws are repaired (replaced) all at once. be able to. Therefore, the man-hours for repairing the excavation bucket are reduced, and the repair work can be performed efficiently. Further, in the repair parts of the excavation bucket of the present invention, the guide member attached to at least one of the first bottom plate portion, the pair of first side plate portions, and the pair of first side edge portions is the excavation bucket. It protrudes upward from the first bottom plate portion, the pair of first side plate portions, and the pair of first side edge portions so that the parts can be attached. Therefore, when repairing the excavation bucket, by aligning the excavation bucket part to be repaired with the guide member, it is possible to quickly and surely align the excavation bucket part with respect to the repaired part. As described above, according to the repair parts of the excavation bucket of the present invention, the excavation bucket can be efficiently repaired.

According to the excavation bucket of the present invention, the excavation bucket component is coupled to the guide member at at least one of a second bottom plate portion, a pair of second side plate portions, and a pair of second side edge portions. Therefore, when the excavation bucket is repaired, the excavation bucket component is brought into contact with the guide member, so that the excavation bucket component can be quickly and reliably aligned with the repaired component. Further, by not only directly connecting the excavation bucket part to the repair part but also connecting it to the guide member, the bonding strength between the repair part and the excavation bucket part can be improved. By improving the joint strength between the repaired part and the excavation bucket part in this way, the number of re-repairs can be reduced, and eventually the efficiency of the entire repair work can be realized. Further, in excavation bucket parts, where dents and distortions often occur in the second bottom plate portion, the pair of second side plate portions, the pair of second side edge portions, etc., the guide member is used as a backing member at the time of welding. Can be used. As a result, the welding work between the excavation bucket part and the guide member can be executed quickly and surely.

It is a perspective view which shows the whole structure of the repair part which concerns on 1st Embodiment of this invention. It is a right side view which shows the state which the repair part of FIG. 1 is seen from the right side. It is a partial front view which shows the state which the repair part of FIG. 1 is seen from the front side partially. It is a right side view which shows the state which saw the excavation bucket which was configured by connecting the repair part which concerns on 1st Embodiment of this invention to the excavation bucket part from the right side. It is a right side view which shows the state which the excavation bucket component shown in FIG. 4 is seen from the right side, and is the figure which omits the side edge reinforcing member. It is a front view which shows the state which the excavation bucket part of FIG. 5 was seen from the front side. It is a right side view which shows the state which looked at the repair part which concerns on 2nd Embodiment of this invention from the right side. It is a partial front view which shows the state which the repair part of FIG. 7 is seen from the front side partially. It is a right side view which shows the state which saw the excavation bucket which was configured by connecting the repair part which concerns on 2nd Embodiment of this invention to the excavation bucket part from the right side. It is a right side view which shows the state which the repair part which concerns on 3rd Embodiment of this invention is seen from the right side. It is a right side view which shows the state which saw the excavation bucket which was configured by connecting the repair part which concerns on 3rd Embodiment of this invention to the excavation bucket part from the right side.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, the repair parts of the excavation bucket equipped on the hydraulic excavator will be described as an example. The repair parts according to the present embodiment are attached to the excavation bucket parts obtained by removing the lower portion of the excavation bucket used for the construction machine to be repaired. Specifically, the repair part is used for repairing a backhoe-type excavation bucket that is standard equipment on a hydraulic excavator, and is used as an excavation bucket part configured by removing a worn part from the excavator. It is connected by welding or the like. The excavation bucket is rotatably attached to the tip of the arm of the hydraulic excavator, and is configured to rotate with respect to the arm according to the expansion and contraction of the bucket cylinder attached to the arm. Since the structure of the hydraulic excavator itself is known, detailed description thereof will be omitted.

<First Embodiment>
FIG. 1 is a perspective view showing the overall configuration of the repair component 1 according to the first embodiment of the present invention. FIG. 2 is a right side view showing a state in which the repair component 1 of FIG. 1 is viewed from the right side. FIG. 3 is a partial front view showing a state in which the repair component 1 of FIG. 1 is partially viewed from the front side. FIG. 4 is a right side view showing a state in which the excavation bucket 200 configured by connecting the repair component 1 according to the first embodiment of the present invention to the excavation bucket component 100 is viewed from the right side. FIG. 5 is a right side view showing a state in which the excavation bucket component 100 shown in FIG. 4 is viewed from the right side, and is a view showing the side edge reinforcing member 150 omitted. FIG. 6 is a front view showing a state in which the excavation bucket component 100 of FIG. 5 is viewed from the front side.

For convenience of explanation, as shown in FIG. 4, the opening side of the excavation bucket 200 is defined as the front side, and the side opposite to the opening side is defined as the rear side. Define the bottom, left, and right. The "front", "rear", "top", "bottom", "left", and "right" defined here are shown in each figure.

As shown in FIGS. 1 to 6, the excavation bucket repair component 1 according to the first embodiment of the present invention includes a first bottom plate portion 10, a pair of flat plate-shaped first side plate portions 20, and a pair of flat plate-shaped parts. The first side edge portion 26, the cutting edge 30, a plurality of excavation claws 35, a flat plate-shaped guide member 40, a rod-shaped reinforcing member 50, and a pair of side cutters 60 are provided. As shown in FIG. 1, the repair part 1 is closed by the first bottom plate portion 10 on the rear side and the lower side, closed by the pair of first side plate portions 20 on the left side and the right side, and opens on the front side and the upper side. It is configured in. Further, as shown in FIG. 4, the repair part 1 is attached to the excavation bucket part 100 to be repaired by welding or the like.

As shown in FIGS. 1 and 2, the first bottom plate portion 10 includes a flat plate-shaped first flat portion 10a and a first curved portion 10b that curves upward in the rear. Further, the first bottom plate portion 10 includes a first bottom plate upper end portion 12 extending in the left-right direction at the upper end of the first bottom plate portion 10. Specifically, the first bottom plate portion 10 is formed by bending one substantially rectangular steel plate, and has a first flat portion 10a extending diagonally from the front side to the rear and upward, and the first flat portion 10. It is composed of a first curved portion 10b curved upward in an arc shape from the rear end of the flat portion 10a. As shown in FIG. 2, the first bottom plate upper end portion 12 is configured to include the upper end edge of the first curved portion 10b, and is provided above the top portion A of the first bottom plate portion 10. The top portion A of the first bottom plate portion 10 means a portion located at the rearmost position in the first curved portion 10b. The first bottom plate portion 10 is formed with the same or substantially the same plate thickness over the first flat portion 10a and the first curved portion 10b. Further, the plate thickness of the first bottom plate portion 10 is formed to be thicker than that of the bottom plate portion in the excavation bucket before repair. As a result, the first bottom plate portion 10 is formed to have higher strength than the excavation bucket before repair.

As shown in FIGS. 1 and 2, the pair of first side plate portions 20 are attached to the first flat portion 10a and the first curved portion 10b, and stand upright from the left and right sides of the first bottom plate portion 10. Further, the pair of first side plate portions 20 includes a pair of first side plate upper end portions 22 extending in the front-rear direction at the upper ends of the pair of first side plate portions 20. Specifically, as shown in FIGS. 1 and 3, the pair of first side plate portions 20 includes a first left plate portion 20a provided on the left side of the first bottom plate portion 10 and a right side of the first bottom plate portion 10. The first right side plate portion 20b provided in the above is included. Further, the first left side plate portion 20a and the first right side plate portion 20b extend to the upper ends of the first left side plate portion 20a and the first right side plate portion 20b, respectively, in the front-rear direction. 1 Includes the upper end 22b of the right side plate. The first left side plate portion 20a and the first right side plate portion 20b are each formed of a half-bow-shaped steel plate, and are formed along the shapes of the first flat portion 10a and the first curved portion 10b of the first bottom plate portion 10. 1 It is formed so as to be connected to the bottom plate portion 10 without a gap. The first left plate portion 20a and the first right plate portion 20b are fixed to the left end portion and the right end portion of the first bottom plate portion 10 by welding or the like, respectively. The first left plate portion 20a and the first right plate portion 20b are arranged so as to be substantially flush with the left end portion and the right end portion of the first bottom plate portion 10, respectively. Each of the pair of first side plate portions 20 is formed with the same or substantially the same plate thickness as a whole. Further, the plate thickness of the pair of first side plate portions 20 is formed to be thicker than that of the side plate portions in the excavation bucket before repair. As a result, the pair of first side plate portions 20 are formed to have higher strength than the excavation bucket before repair.

As shown in FIGS. 1 to 3, the pair of first side edge portions 26 are attached to the front side of the pair of first side plate portions 20. Further, the pair of first side edge portions 26 includes a pair of first side edge upper end portions 28 extending in the front-rear direction at the upper ends of the pair of first side edge portions 26. Specifically, as shown in FIGS. 1 and 3, the pair of first side edge portions 26 includes a first left side edge portion 26a attached to the front side of the first left plate portion 20a by welding or the like. 1 Includes a first right side edge portion 26b attached to the front side of the right side plate portion 20b by welding or the like. Further, the first left side edge portion 26a and the first right side edge portion 26b extend to the upper ends of the first left side edge portion 26a and the first right side edge portion 26b, respectively, in the front-rear direction. The upper end portion 28a and the first right side edge upper end portion 28b are included. The first left side edge portion 26a and the first right side edge portion 26b are formed into a vertically long trapezoidal shape by using a steel plate thicker than the first left side plate portion 20a and the first right side plate portion 20b, respectively. It is formed. The first left side edge portion 26a and the first right side edge portion 26b are fixed to the front ends of the first left side plate portion 20a and the first right side plate portion 20b, respectively, and to the left and right ends of the cutting edge 30 by welding or the like. ing.

Further, as shown in FIGS. 1 to 3, the first left side plate upper end portion 22a of the first left side plate portion 20a, the first left side edge upper end portion 28a of the first left side edge portion 26a, and the first right side plate. The first right side plate upper end portion 22b of the portion 20b and the first right side edge upper end portion 28b of the first right side edge portion 26b are formed so as to be flush with each other or substantially flush with each other on their upper surfaces.

Further, as shown in FIGS. 1 and 2, a pair of side cutters 60 projecting forward from the pair of first side edge portions 26 are attached to the pair of first side edge portions 26. Specifically, as shown in FIG. 1, the pair of side cutters 60 are the left side cutter 60a fastened to the left side surface of the first left side edge portion 26a by bolts and the right side of the first right side edge portion 26b. Includes a right side cutter 60b fastened to the surface with bolts.

As shown in FIGS. 1 and 2, the cutting edge 30 is attached to the front side of the first bottom plate portion 10. Specifically, the cutting edge 30 is attached to the front end of the first flat portion 10a of the first bottom plate portion 10. The cutting edge 30 is formed in a substantially rectangular shape that is long in the left-right direction by using a steel plate that is thicker than the first bottom plate portion 10. The cutting edge 30 is fixed to the first flat portion 10a of the first bottom plate portion 10 by welding or the like. Further, as shown in FIG. 1, the excavation claw 35 is attached to the front side of the cutting edge 30. Specifically, the excavation claw 35 is a plurality of excavation members provided on the cutting edge 30 at intervals in the left-right direction.

The guide member 40 is attached to a first bottom plate portion 10, a pair of first side plate portions 20, and a pair of first side edge portions 26. Specifically, as shown in FIGS. 1 to 3, the guide member 40 extends along the first bottom plate upper end portion 12, the pair of first side plate upper end portions 22, and the pair of first side edge upper end portions 28. As present, they are attached to the first bottom plate portion 10, the pair of first side plate portions 20, and the pair of first side edge portions 26. Further, the guide member 40 projects upward from the first bottom plate portion 10, the pair of first side plate portions 20, and the pair of first side edge portions 26 so that the excavation bucket component 100 described later can be attached. The guide member 40 may be attached to at least one of a first bottom plate portion 10, a pair of first side plate portions 20, and a pair of first side edge portions 26.

More specifically, as shown in FIG. 1, the guide member 40 includes a first guide member 40a, a second guide member 40b, and a third guide member 40c. The first guide member 40a is fixed to the inner surface (that is, the right side surface) of the first left side plate upper end portion 22a and the first left side edge upper end portion 28a by welding or the like, and the first left side plate upper end portion 22a and the first left side edge. It is a substantially rectangular steel material that is long in the front-rear direction and protrudes upward from the upper end portion 28a. The second guide member 40b is fixed to the inner surface (that is, the left side surface) of the first right side plate upper end portion 22b and the first right side edge upper end portion 28b by welding, and is fixed to the inner surface (that is, the left side surface) of the first right side plate upper end portion 22b and the first right side edge upper end portion 22b. It is a substantially rectangular steel material that is long in the front-rear direction and protrudes upward from the portion 28b. The third guide member 40c is a substantially rectangular steel material that is long in the left-right direction and is fixed to the inner surface (that is, the front side surface) of the upper end portion 12 of the first bottom plate by welding and protrudes upward from the upper end portion 12 of the first bottom plate. ..

As shown in FIGS. 1 to 3, the reinforcing member 50 is attached to the pair of first side edge portions 26 so as to cross the pair of first side edge portions 26 in the left-right direction. The reinforcing member 50 is formed of a rod-shaped steel material having a square cross section, and is formed to have a length exceeding the pair of first side edge portions 26. Specifically, the reinforcing member 50 is formed to be longer than the distance between the first left side edge portion 26a and the first right side edge portion 26b in the left-right direction, and the first left side edge portion 26a and the first right side edge portion 26a. It is fixed to 26b by welding or the like. At least one reinforcing member 50 may be provided, and the number thereof is not limited.

Next, the excavation bucket 200 according to the first embodiment of the present invention will be described with reference to FIGS. 4 to 6. As shown in FIG. 4, the excavation bucket 200 includes the above-mentioned repair component 1 and an excavation bucket component and 100 attached to the repair component 1 by welding or the like. The excavation bucket component 100 is obtained by cutting and removing a worn portion or a damaged portion of the excavation bucket to be repaired.

As shown in FIGS. 4 to 6, the excavation bucket component 100 includes a second bottom plate portion 110, a pair of flat plate-shaped second side plate portions 120, and a pair of flat plate-shaped second side edge portions 126. A rib member 170, a bottom plate reinforcing member 175, and a pair of brackets 180 are provided. As shown in FIGS. 5 and 6, the excavation bucket component 100 is closed on the rear and upper sides by a second bottom plate portion 110 and on the left and right sides by a pair of second side plate portions 120, on the front and lower sides. It is configured to open.

As shown in FIGS. 4 and 5, the second bottom plate portion 110 is a member to be coupled to the first bottom plate portion 10. The second bottom plate portion 110 includes a flat plate-shaped second flat portion 110a and a second curved portion 110b that curves downward in the rear. Further, the second bottom plate portion 110 includes a second bottom plate portion 112 extending in the left-right direction at the lower end of the second bottom plate portion 110. Specifically, the second bottom plate portion 110 is formed by bending one substantially rectangular steel plate, and extends linearly or substantially linearly from the front side to the rear, and the second flat portion 110a. It is composed of a second curved portion 110b curved downward in an arc shape from the rear end of the second flat portion 110a. As shown in FIGS. 4 and 5, the lower end portion 112 of the second bottom plate is configured to include the lower end edge of the second curved portion 110b. The second bottom plate portion 110 is formed with the same or substantially the same plate thickness over the second flat portion 110a and the second curved portion 110b. Further, the plate thickness of the second bottom plate portion 110 is thinner than the plate thickness of the first bottom plate portion 10.

As shown in FIGS. 4 and 5, a bottom plate reinforcing member 175 is fixed to the second flat portion 110a and the second curved portion 110b of the second bottom plate portion 110 by welding or the like on the upper side of the second bottom plate portion 110. There is. The bottom plate reinforcing member 175 enhances the strength of the second bottom plate portion 110, and is formed by bending a steel plate into a predetermined shape. Further, a pair of brackets 180 are fixed to the second flat portion 110a and the second curved portion 110b of the second bottom plate portion 110 by welding or the like on the upper side of the second bottom plate portion 110. As shown in FIG. 6, the pair of brackets 180 includes a left bracket 180a and a right bracket 180b arranged apart from each other in the left-right direction. A link mechanism connected to the tip of the arm and the bucket cylinder is connected to the pair of brackets 180 (not shown).

As shown in FIG. 4, the pair of second side plate portions 120 are members to be coupled to the pair of first side plate portions 20. As shown in FIGS. 4 and 5, the pair of second side plate portions 120 are attached to the second flat portion 110a and the second curved portion 110b on both the left and right sides of the second bottom plate portion 110 by welding or the like. Further, the pair of second side plate portions 120 includes a pair of second side plate lower end portions 122 extending in the front-rear direction at the lower ends of the pair of second side plate portions 120. Specifically, the pair of second side plate portions 120 includes a second left plate portion (unsigned) provided on the left side of the second bottom plate portion 110 and a second right side provided on the right side of the second bottom plate portion 110. Includes plate portion 120b. Further, the second left side plate portion and the second right side plate portion 120b extend to the lower ends of the second left side plate portion and the second right side plate portion 120b in the front-rear direction, respectively, and the second left side plate lower end portion and the second right side plate portion. Includes the lower end 122b. Since the second left side plate portion has the same configuration as the second right side plate portion 120b, only the second right side plate portion 120b and the second right side plate lower end portion 122b will be described with reference numerals, and the second left side plate portion will be described. And the description of the lower end of the second left side plate will be omitted. The second right side plate portion 120b is made of a half-bow-shaped steel plate, and is formed to have a size larger than that of the second flat portion 110a and the second curved portion 110b of the second bottom plate portion 110. That is, as shown in FIGS. 4 and 5, the second right plate portion 120b is arranged so as to project upward and backward beyond the second flat portion 110a and the second curved portion 110b of the second bottom plate portion 110. There is. Then, the second bottom plate portion 110 is sandwiched between the second left side plate portion and the second right side plate portion 120b, and the second left side plate portion and the second right side plate portion 120b are fixed to the second bottom plate portion 110 by welding or the like. ing. Each of the pair of second side plate portions 120 is formed with the same or substantially the same plate thickness as a whole. Further, the plate thickness of the pair of second side plate portions 120 is thinner than the plate thickness of the pair of first side plate portions 20. The lower end 122b of the second right side plate includes a cut line for cutting the excavation bucket component 100 from the excavation bucket before repair. That is, the excavation bucket before repair is cut in the front-rear direction along the lower end edge of the lower end portion 122b of the second right side plate, whereby the excavation bucket component 100 is cut out.

As shown in FIGS. 4 and 5, the pair of second side edge portions 126 is a member to be coupled to the pair of first side edge portions 26. The pair of second side edge portions 126 are attached to the front side of the pair of second side plate portions 120. Further, the pair of second side edge portions 126 includes a pair of second side edge portions 128 extending in the front-rear direction at the lower ends of the pair of second side edge portions 126. Specifically, as shown in FIGS. 4 to 6, the pair of second side edge portions 126 is attached to the front side of the second left plate portion by welding or the like (see FIG. 6). ) And the second right side edge portion 126b attached to the front side of the second right side plate portion 120b by welding or the like. Further, the second left side edge portion 126a and the second right side edge portion 126b extend to the lower ends of the second left side edge portion 126a and the second right side edge portion 126b, respectively, in the front-rear direction. The lower end portion 128a and the second right side edge lower end portion 128b are included. The lower end portion 128a of the second left side edge and the lower end portion 128b of the second right side edge are portions constituting the pair of lower end portions 128 of the second side edge. The second left side edge portion 126a and the second right side edge portion 126b are formed in a vertically long trapezoidal shape by using a steel plate thicker than the second left side plate portion and the second right side plate portion 120b, respectively. Has been done. The second left side edge portion 126a and the second right side edge portion 126b are fixed to the front ends of the second left side plate portion and the second right side plate portion 120b, respectively, and to the left and right ends of the second bottom plate portion 110 by welding or the like. Has been done. The lower end 128a of the second left side edge and the lower end 128b of the second right side edge include a cut line for separating the excavation bucket component 100 from the excavation bucket before repair. That is, the excavation bucket before repair is cut in the front-rear direction along the lower end edges of the second left side edge lower end portion 128a and the second right side edge lower end portion 128b, following the pair of second side plate lower end portions 122. As a result, the excavation bucket component 100 is cut out.

Further, as shown in FIGS. 4 and 5, the lower end portion 122b of the second right side plate of the second right side plate portion 120b and the lower end portion 128b of the second right side edge of the second right side edge portion 126b are surfaces on their lower surfaces. It is formed so as to be one or substantially flush with each other. This point is similarly configured in the lower end portion of the second left side plate of the second left side plate portion and the lower end portion 128a of the second left side edge portion of the second left side edge portion 126a. Further, as shown in FIGS. 4 to 6, a pair of rib members 170 are attached to the inner surface of the pair of second side edge portions 126 in the pair of second side edge portions 126. The pair of rib members 170 includes a left rib member 170a and a right rib member 170b, and is a steel material that enhances the strength of the pair of second side edge portions 126 and the second bottom plate portion 110. Specifically, as shown in FIG. 6, the left rib member 170a has an inner surface (that is, a right side surface) of the second left side edge portion 126a and an inner surface (that is, a lower surface) of the second flat portion 110a of the second bottom plate portion 110. It is fixed by welding or the like. Further, the right rib member 170b is fixed to the inner surface (that is, the left side surface) of the second right side edge portion 126b and the inner surface (that is, the lower surface) of the second flat portion 110a of the second bottom plate portion 110 by welding or the like.

The excavation bucket component 100 is coupled to the guide member 40 of the repair component 1 at least one of a second bottom plate portion 110, a pair of second side plate portions 120, and a pair of second side edge portions 126. Specifically, as shown in FIG. 4, the excavation bucket component 100 is a pair of second bottom plate lower end portions 112, a pair of second side plate lower end portions 122, and a pair of second side edge lower end portions 128, and is a repair component 1. It is coupled to the guide member 40.

More specifically, as shown in FIG. 4, in the excavation bucket component 100, the lower end portion 122b of the second right side plate and the lower end portion 128b of the second right side edge of the excavation bucket component 100 have the upper end portion 22b and the first upper end portion 22b of the first right side plate of the repair part 1. It is directly welded to the upper end portion 28b of the right side edge, and is also welded to the second guide member 40b fixed to the repair part 1 over the entire length in the front-rear direction. Similarly, the lower end of the second left side plate and the lower end of the second left side edge 128a of the excavation bucket component 100 are directly welded to the upper end portion 22a of the first left side plate and the upper end portion 28a of the first left side edge of the repair part 1. At the same time, it is welded to the first guide member 40a fixed to the repair part 1 over the entire length in the front-rear direction. Further, the lower end portion 112 of the second bottom plate of the excavation bucket component 100 is directly welded to the upper end portion 12 of the first bottom plate of the repair component 1 and is long in the left-right direction to the third guide member 40c fixed to the repair component 1. It is welded all over.

When the excavation bucket part 100 is welded to the repair part 1, the lower end portion 122b of the second right side plate and the lower end portion 128b of the second right side edge of the excavation bucket part 100 abut on the second guide member 40b of the repair part 1 from the right side. Will be done. As a result, the second guide of the second right side plate lower end 122b and the second right side edge lower end 128b of the excavation bucket component 100 with respect to the first right side plate upper end 22b and the first right side edge upper end 28b of the repair part 1. Positioning using the member 40b is completed. Similarly, the lower end of the second left side plate and the lower end of the second left side edge 128a of the excavation bucket component 100 are in contact with the first guide member 40a from the left side. As a result, the first guide member of the second left side plate lower end portion and the second left side edge lower end portion 128a of the excavation bucket component 100 with respect to the first left side plate upper end portion 22a and the first left side edge upper end portion 28a of the repair part 1. Positioning using 40a is completed. Further, the lower end portion 112 of the second bottom plate of the excavation bucket component 100 is in contact with the third guide member 40c from the rear side. As a result, the positioning of the lower end portion 112 of the second bottom plate of the excavation bucket component 100 with respect to the upper end portion 12 of the first bottom plate of the repair part 1 is completed using the third guide member 40c. At the time of such positioning, the repair component 1 and the excavation bucket component 100 are positioned by the guide member 40 so as to coincide with each other on the inner surface without a step. In the above welding work, temporary welding is performed at about three places along the first guide member 40a, the second guide member 40b, and the third guide member 40c, and the pair of first side edge portions 26 and the pair. After the welding of the side edge reinforcing member 150 to the second side edge portion 126 is completed, the main welding is performed over the entire first guide member 40a, the second guide member 40b, and the third guide member 40c.

As shown in FIG. 4, the side edge reinforcing member 150 is formed by removing the reinforcing member 50 from the pair of first side edge portions 26 and cutting the reinforcing member 50. That is, the side edge reinforcing member 150 is prepared by removing the reinforcing member 50 welded to the repair component 1 from the pair of first side edge portions 26 and cutting at the center or substantially the center of the reinforcing member 50. As shown in FIG. 4, the side edge reinforcing member 150 has a pair of first side edge portions 26 and a pair so as to straddle the pair of first side edge portions 26 and the pair of second side edge portions 126 in the vertical direction, respectively. It is attached to both of the second side edge portions 126 of the above by welding or the like. Further, the side edge reinforcing members 150 are welded along the pair of first side edge portions 26 and the pair of second side edge portions 126 so as to be terminated in front of (that is, on the upper side) of the pair of side cutters 60, respectively. It is installed.

Specifically, the side edge reinforcing member 150 includes a left side edge reinforcing member (not shown) and a right side edge reinforcing member 150b. Since the left side edge reinforcing member has the same configuration as the right side edge reinforcing member 150b, only the right side edge reinforcing member 150b will be described with reference numerals, and the description of the left side edge reinforcing member will be omitted. The right side edge reinforcing member 150b is a part of the reinforcing member 50 welded to the repair part 1, and the first right side edge portion 26b and the second right side edge portion 126b are straddled in the vertical direction. It is fixed to the front side of the right side edge portion 26b and the second right side edge portion 126b by welding or the like. Further, the right side edge reinforcing member 150b is fixed to the first right side edge portion 26b and the second right side edge portion 126b by welding or the like so as to terminate in front of (that is, the upper side) of the right side cutter 60b.

Next, the operation and effect of the repair component 1 according to the first embodiment of the present invention will be described. The repair component 1 according to the first embodiment includes, in addition to the first bottom plate portion 10 and the pair of first side plate portions 20, a pair of first side edge portions 26 attached to the front side of the pair of first side plate portions 20. A cutting edge 30 attached to the front side of the first bottom plate portion 10 and a plurality of excavation claws 35 attached to the front side of the cutting edge 30 are provided. As described above, since the repair component 1 is integrally composed of the first bottom plate portion 10, the pair of first side plate portions 20, the pair of first side edge portions 26, the cutting edge 30, and the excavation claw 35. When the wear of the excavation bucket progresses with the progress of the excavation work, the first bottom plate portion 10, the pair of first side plate portions 20, the pair of first side edge portions 26, the cutting edge 30, and the excavation claw 35 are put together. It can be repaired (replaced) in one go. Therefore, the man-hours for repairing the excavation bucket are reduced, and the repair work can be performed efficiently. Further, in the repair component 1 according to the first embodiment, the guide member 40 attached to at least one of the first bottom plate portion 10, the pair of first side plate portions 20, and the pair of first side edge portions 26 The excavation bucket component 100 projects upward from the first bottom plate portion 10, the pair of first side plate portions 20, and the pair of first side edge portions 26 so that the excavation bucket component 100 can be attached. Therefore, when the excavation bucket is repaired, the excavation bucket component 100 to be repaired is brought into contact with the guide member 40, so that the excavation bucket component 100 can be quickly and reliably aligned with the repair component 1. As described above, according to the repair component 1 according to the first embodiment of the present invention, the excavation bucket can be efficiently repaired.

Further, according to the repair component 1 according to the first embodiment of the present invention, the guide member 40 is attached to the first bottom plate upper end portion 12, the pair of first side plate upper end portions 22, and the pair of first side edge upper end portions 28. It is attached to a first bottom plate portion 10, a pair of first side plate portions 20, and a pair of first side edge portions 26 so as to extend along the same. Therefore, when repairing the excavation bucket, the excavation bucket component 100 is brought into contact with the guide member 40 (that is, the first guide member 40a, the second guide member 40b, and the third guide member 40c) to bring the excavation bucket component 1 into contact with the repair component 1. Along the first bottom plate upper end portion 12, the pair of first side plate upper end portions 22, and the pair of first side edge upper end portions 28, the second bottom plate lower end portion 112 of the excavation bucket component 100, and the pair of second side plate lower end portions. The 122 and the pair of second side edge lower ends 128 can be quickly and reliably aligned. As described above, according to the repair component 1 according to the first embodiment of the present invention, the excavation bucket can be efficiently repaired.

Further, the repair component 1 according to the first embodiment of the present invention has at least one rod shape attached to the pair of first side edge portions 26 so as to cross the pair of first side edge portions 26 in the left-right direction. A reinforcing member 50 is provided. Therefore, the strain generated when the repair component 1 is manufactured, specifically, a pair of first side plate portions 20 are welded to the first bottom plate portion 10, and a pair of first sides are welded to the pair of first side plate portions 20. It is possible to suppress distortion (bending) of the pair of first side plate portions 20 and the pair of first side edge portions 26 that occur when the edge portions 26 are welded. As a result, the excavation bucket component 100 can be quickly and reliably aligned with the repair component 1, and the excavation bucket can be efficiently repaired.

Further, according to the excavation bucket 200 according to the first embodiment of the present invention, the excavation bucket component 100 is at least one of a second bottom plate portion 110, a pair of second side plate portions 120, and a pair of second side edge portions 126. It is connected to the guide member 40 by one of them. Therefore, when the excavation bucket is repaired, the excavation bucket component 100 is brought into contact with the guide member 40, so that the excavation bucket component 100 can be quickly and reliably aligned with the repair component 1. Further, by not only directly connecting the excavation bucket component 100 to the repair component 1 but also connecting it to the guide member 40, the bonding strength between the repair component 1 and the excavation bucket component 100 can be improved. By improving the coupling strength between the repair component 1 and the excavation bucket component 100 in this way, the number of re-repairs can be reduced, and the efficiency of the entire repair work can be improved. Further, in the excavation bucket component 100, the guide member 40 is welded where the second bottom plate portion 110, the pair of second side plate portions 120, the pair of second side edge portions 126, and the like are often dented or distorted. It can be used as a backing member for time. Thereby, the welding work of the excavation bucket part 100 and the guide member 40 can be executed quickly and surely.

Further, according to the excavation bucket 200 according to the first embodiment of the present invention, the excavation bucket component 100 includes a second bottom plate lower end portion 112, a pair of second side plate lower end portions 122, and a pair of second side edge lower end portions 128 portions. Is coupled to the guide member 40. Therefore, when repairing the excavation bucket, the excavation bucket component 100 is brought into contact with the guide member 40 (that is, the first guide member 40a, the second guide member 40b, and the third guide member 40c) to bring the excavation bucket component 100 into contact with the excavation bucket component. The second bottom plate lower end 112 of 100, the pair of second side plate lower ends 122, and the pair of second side edge lower ends 128 are the first bottom plate upper end 12 of the repair part 1, the pair of first side plate upper ends 22, And along the pair of first side edge upper ends 28, it can be quickly and reliably aligned.

Further, according to the excavation bucket 200 according to the first embodiment of the present invention, the side edge reinforcing member 150 straddles the pair of first side edge portions 26 and the pair of second side edge portions 126 in the vertical direction, respectively. , Attached to both the pair of first side edge portions 26 and the pair of second side edge portions 126. Thereby, in the excavation bucket 200, the welded portion of the pair of first side edge portions 26 and the pair of second side edge portions 126 can be reinforced. Further, in the portion where the side edge reinforcing member 150 is attached, the pair of first side edge portions 26 and the pair of second side edge portions 126 can be protected from wear in the excavation work.

Further, according to the excavation bucket 200 according to the first embodiment of the present invention, the pair of first side edge portions 26 and the pair of side edge reinforcing members 150 are terminated in front of the pair of side cutters 60, respectively. It is attached to the second side edge portion 126. Therefore, the attachment of the pair of side cutters 60 to the pair of first side edge portions 26 is not hindered. Further, in the portion where the side edge reinforcing member 150 is attached, the pair of first side edge portions 26 and the pair of second side edge portions 126 can be protected from wear in the excavation work.

<Second Embodiment>
Next, the repair part 2 of the excavation bucket and the excavation bucket 300 according to the second embodiment of the present invention will be described. The repair component 2 according to the second embodiment of the present invention includes a pair of projecting portions 11 in which the first bottom plate portion 10 protrudes in the left-right direction beyond the pair of first side plate portions 20, and a pair of guide members 40. It is different from the repair component 1 according to the first embodiment, which does not have such a configuration, in that it is attached to the outside of the first side plate portion 20 and the pair of first side edge portions 26. Hereinafter, the configuration having the same or similar functions as the repair component 1 according to the above 1 embodiment is designated by the same reference numerals as those of the repair component 1 according to the first embodiment, the description thereof is omitted, and different parts will be described. do. Further, the excavation bucket 300 according to the second embodiment of the present invention is also the same as the excavation bucket 200 according to the first embodiment in a configuration having the same or similar functions as the excavation bucket 200 according to the first embodiment. The explanation will be omitted by adding reference numerals, and different parts will be described.

FIG. 7 is a right side view showing a state in which the repaired part 2 according to the second embodiment of the present invention is viewed from the right side. FIG. 8 is a partial front view showing a state in which the repaired part 2 of FIG. 7 is partially viewed from the front side. FIG. 9 is a right side view showing a state in which the excavation bucket 300 configured by connecting the repair component 2 according to the second embodiment of the present invention to the excavation bucket component 100 is viewed from the right side.

As shown in FIG. 9, the excavation bucket 300 is composed of a repair part 2 and an excavation bucket part 100. As shown in FIGS. 7 and 8, the first bottom plate portion 10 of the repair component 2 includes a pair of projecting portions 11 projecting in the left-right direction beyond the pair of first side plate portions 20. Specifically, the pair of protrusions 11 includes a left side protrusion 11a that protrudes to the left beyond the first left side plate portion 20a and a right side protrusion 11b that protrudes to the right beyond the first right side plate portion 20b. include. Note that FIG. 8 shows an embodiment in which the left side protrusion 11a and the right side protrusion 11b project beyond the first left side edge portion 26a and the first right side edge portion 26b to the left and right sides by a predetermined dimension, respectively. ..

As shown in FIGS. 7 to 9, the guide member 40 has a pair of first side plate portions 20 and a pair of first side plate portions 20 so as to extend along the pair of first side plate upper end portions 22 and the pair of first side edge upper end portions 28. It is attached to the outside of the pair of first side edge portions 26. Specifically, the first guide member 40a is attached to the left side of the first left side plate portion 20a, and the second guide member 40b is attached to the right side of the first right side plate portion 20b. Further, the thickness of the guide member 40 in the left-right direction is formed to be smaller than the protrusion length of each of the pair of protrusions 11. Specifically, the first guide member 40a is formed to have a thickness that does not protrude to the left from the left side protrusion 11a, and the second guide member 40b is formed to have a thickness that does not protrude to the right from the right side protrusion 11b. ing. Further, the third guide member 40c is attached to the first bottom plate upper end portion 12 located above the top A of the first bottom plate portion 10.

As shown in FIG. 9, the excavation bucket component 100 is coupled to the guide member 40 of the repair component 2 by a pair of second side plate lower end portions 122 and a pair of second side edge lower end portions 128. Further, the guide member 40 is arranged inside the pair of protrusions 11 in the left-right direction. Specifically, the first guide member 40a is arranged inside the left side protrusion 11a (that is, the right side), and the second guide member 40b is arranged inside the right side protrusion 11b (that is, the left side). ..

When the excavation bucket part 100 is welded to the repair part 2, the lower end portion 122b of the second right side plate and the lower end portion 128b of the second right side edge of the excavation bucket part 100 abut on the second guide member 40b of the repair part 2 from the left side. Will be done. As a result, the second guide of the second right side plate lower end 122b and the second right side edge lower end 128b of the excavation bucket component 100 with respect to the first right side plate upper end 22b and the first right side edge upper end 28b of the repair part 2. Positioning using the member 40b is completed. Similarly, the lower end of the second left side plate and the lower end of the second left side edge 128a of the excavation bucket component 100 are in contact with the first guide member 40a from the right side. As a result, the first guide member of the second left side plate lower end portion and the second left side edge lower end portion 128a of the excavation bucket component 100 with respect to the first left side plate upper end portion 22a and the first left side edge upper end portion 28a of the repair part 2. Positioning using 40a is completed. Further, the lower end portion 112 of the second bottom plate of the excavation bucket component 100 is in contact with the third guide member 40c from the front side. As a result, the positioning of the lower end portion 112 of the second bottom plate of the excavation bucket component 100 with respect to the upper end portion 12 of the first bottom plate of the repair part 2 is completed using the third guide member 40c. At the time of such positioning, the repair component 2 and the excavation bucket component 100 are positioned by the guide member 40 so as to coincide with each other on the outer surface without a step.

Next, the operations and effects of the repair parts 2 and the excavation bucket 300 according to the second embodiment of the present invention will be described. According to the repair component 2 according to the second embodiment, the guide member 40 is attached to the outside of the pair of first side plate portions 20 and the pair of first side edge portions 26, and the thickness of the guide member 40 in the left-right direction. The halfbeak is formed to be smaller than the protrusion length of each of the pair of protrusions 11. Further, according to the excavation bucket 300 according to the second embodiment, the guide member 40 is arranged inside the pair of protrusions 11 in the left-right direction. In this way, the guide member 40 is sized so as to fit inside the pair of protrusions 11. Therefore, the excavation work using the excavation bucket 300 can be performed without being hindered by the guide member 40 attached to the outside of the pair of first side plate portions 20 and the pair of first side edge portions 26.

<Third Embodiment>
Next, the repair part 3 of the excavation bucket and the excavation bucket 400 according to the third embodiment of the present invention will be described. The repair component 3 according to the third embodiment of the present invention is repaired according to the first embodiment in that a pair of first side plate portions 20 and a pair of first side edge portions 26 are formed diagonally at the upper ends. Different from part 1. Hereinafter, the configuration having the same or similar functions as the repair component 1 according to the above 1 embodiment is designated by the same reference numerals as those of the repair component 1 according to the first embodiment, the description thereof is omitted, and different parts will be described. do. Further, the excavation bucket 400 according to the third embodiment of the present invention is also the same as the excavation bucket 200 according to the first embodiment in a configuration having the same or similar functions as the excavation bucket 200 according to the first embodiment. The explanation will be omitted by adding reference numerals, and different parts will be described.

FIG. 10 is a right side view showing a state in which the repaired part 3 according to the third embodiment of the present invention is viewed from the right side. FIG. 11 is a right side view showing a state in which the excavation bucket 400 configured by connecting the repair component 3 according to the third embodiment of the present invention to the excavation bucket component 105 is viewed from the right side.

As shown in FIG. 11, the excavation bucket 400 is composed of a repair part 3 and an excavation bucket part 105. The pair of first side plate portions 20 of the repair component 3 includes a pair of first side plate upper end portions 23 extending in the front-rear direction at the upper ends of the pair of first side plate portions 20. Further, the pair of first side edge portions 26 of the repair component 3 includes a pair of first side edge upper end portions 29 extending in the front-rear direction at the upper ends of the pair of first side edge portions 26. Specifically, as shown in FIG. 10, the pair of first side plate upper end portions 23 and the pair of first side edge upper end portions 29 are formed so as to extend diagonally downward from the rear side to the front side. ..

The pair of first side plate upper end portions 23 includes the first right side plate upper end portion 23b provided at the upper end of the first right side plate portion 20b and extending diagonally downward from the rear side to the front side. Similarly, the pair of first side plate upper end portions 23 is provided at the upper end of the first left side plate portion 20a, and has a first left side plate upper end portion (not shown) extending diagonally downward from the rear side to the front side. include. Further, the pair of first side edge upper end portions 29 includes a first right side edge upper end portion 29b provided at the upper end of the first right side edge portion 26b and extending diagonally downward from the rear side to the front side. Similarly, the pair of first side edge upper end portions 29 is provided at the upper end of the first left side edge portion 26a and extends diagonally downward from the rear side to the front side (shown). Includes).

The pair of second side plate portions 120 of the excavation bucket component 105 includes a pair of second side plate portions 123 extending in the front-rear direction at the lower ends of the pair of second side plate portions 120. Further, the pair of second side edge portions 126 of the excavation bucket component 105 includes a pair of second side edge portions 129 extending in the front-rear direction at the lower ends of the pair of second side edge portions 126. Specifically, as shown in FIG. 11, the pair of second side plate lower end portions 123 and the pair of second side edge lower end portions 129 are separated from the pair of rib members 170 from the rear side to the front side (downward). It is formed by extending diagonally. The pair of second side plate lower end portions 123 and the pair of second side edge lower end portions 129 of the excavation bucket component 105 include a cut line for separating the excavation bucket component 105 from the excavation bucket before repair. That is, the excavation bucket before repair is cut diagonally in the front-rear direction along the lower end edges of the pair of second side plate lower end portions 123 and the pair of second side edge lower end portions 129, whereby the excavation bucket component 105 is cut out. .. The excavation bucket component 105 is connected to the guide member 40 by a pair of second side plate lower end portions 123 and a pair of second side edge lower end portions 129.

The pair of second side plate lower end portions 123 is provided at the lower end of the second right side plate portion 120b, and includes a second right side plate lower end portion 123b extending diagonally downward from the rear side to the front side. Similarly, the pair of second side plate lower end portions 123 is provided at the lower end portion of the second left side plate portion 120a, and has a second left side plate lower end portion (not shown) extending diagonally downward from the rear side to the front side. include. Further, the pair of second side edge lower end portions 129 includes a second right side edge lower end portion 129b provided at the lower end of the second right side edge portion 126b and extending diagonally downward from the rear side to the front side. Similarly, the pair of second side edge lower end portions 129 is provided at the lower end of the second left side edge portion 126a and extends diagonally downward from the rear side to the front side (shown). Includes).

Next, the operations and effects of the repair parts 3 and the excavation bucket 400 according to the third embodiment of the present invention will be described. According to the repair component 3 according to the third embodiment, the pair of first side plate upper end portions 23 and the pair of first side edge upper end portions 29 are formed so as to extend diagonally downward from the rear side to the front side. There is. Further, according to the excavation bucket 400 according to the third embodiment of the present invention, the pair of second side plate lower end portions 123 and the pair of second side edge lower end portions 129 are separated from the pair of rib members 170 from the rear side to the front side. It is formed so as to extend diagonally in the direction. In this way, the joint portion between the excavation bucket component 105 and the repair component 3 can be provided at a position away from the pair of rib members 170. Specifically, the pair of rib members 170 are provided in the portion of the excavation bucket where a larger stress is applied during the excavation work, and the excavation bucket component 105 and the repair are performed at a position avoiding the pair of rib members 170. A joint portion of the component 3 can be provided. Therefore, when excavation work is performed using the excavation bucket after repair, the stress applied to the joint portion between the excavation bucket component 105 and the repair component 3 can be reduced, and cracks are generated around the joint portion. It can be suppressed.

Although the preferred embodiments of the present invention have been described above, the embodiments of the present invention are not limited to the above embodiments. For example, in the above embodiment, the case where the cross-sectional shape of the reinforcing member 50 is square has been described, but the cross-sectional shape is not limited to the square shape, and may be any shape such as a round shape, an elliptical shape, or a triangular shape. It's okay. Further, the length of the reinforcing member 50 may be a length that can be attached to the pair of first side edge portions 26, and is in the left-right direction of the first left side edge portion 26a and the first right side edge portion 26b. It may be equal to or substantially equal to the interval.

Further, the present invention is not limited to the repair parts 1, 2, 3 and the excavation buckets 200, 300, 400 according to the above embodiment, but includes all aspects included in the concept of the present invention and the scope of claims. .. In addition, each configuration may be selectively combined as appropriate so as to achieve the above-mentioned problems and effects. For example, the shape, material, arrangement, size, etc. of each component in the above embodiment can be appropriately changed depending on the specific embodiment of the present invention.

1, 2, 3 Repair parts 10 1st bottom plate part 10a 1st flat part 10b 1st curved part 11 Pair of protruding parts 12 1st bottom plate upper end part 20 Pair of 1st side plate parts 22,23 Pair of 1st side plate upper ends 26 Pair of first side edge parts 28,29 Pair of first side edge upper end 30 Cutting edge 35 Drilling claw 40 Guide member 50 Reinforcing member 60 Pair of side cutters 100, 105 Drilling bucket parts 110 Second bottom plate 110a Second Flat part 110b Second curved part 112 Second bottom plate lower end part 120 Pair of second side plate parts 122, 123 Pair of second side plate lower ends 126 Pair of second side edge parts 128, 129 Pair of second side edge lower ends 150 Side edge reinforcement 170 Pair of rib members 200,300,400 Excavation bucket

Claims (10)

It is a repair part of the excavation bucket that is attached to the excavation bucket part that is made by removing the lower part that is the repair target part of the excavation bucket used for construction machinery.
A flat first flat portion and a first bottom plate portion including a first curved portion that curves upward in the rear, and a first flat portion.
A pair of flat plate-shaped first side plate portions attached to the first flat portion and the first curved portion and erected from the left and right sides of the first bottom plate portion.
A pair of flat plate-shaped first side edge portions attached to the front side of the pair of first side plate portions,
The cutting edge attached to the front side of the first bottom plate portion,
A plurality of excavation claws attached to the front side of the cutting edge,
A flat plate-shaped guide member attached to at least one of the first bottom plate portion, the pair of first side plate portions, and the pair of first side edge portions.
The guide member is characterized in that it projects upward from the first bottom plate portion, the pair of first side plate portions, and the pair of first side edge portions so that the excavation bucket component can be attached. Repair parts for excavation buckets. The first bottom plate portion includes the upper end portion of the first bottom plate extending in the left-right direction at the upper end of the first bottom plate portion.
The pair of first side plate portions includes a pair of first side plate upper end portions extending in the front-rear direction at the upper ends of the pair of first side plate portions.
The pair of first side edge portions includes a pair of first side edge upper end portions extending in the front-rear direction at the upper ends of the pair of first side edge portions.
The guide member extends along the upper end portion of the first bottom plate, the upper end portion of the pair of first side plates, and the upper end portion of the pair of first side edges, and the first bottom plate portion and the pair of first portions. The repair part for an excavation bucket according to claim 1, wherein the excavation bucket is attached to one side plate portion and the pair of first side edge portions. The pair of first side plate portions includes a pair of first side plate upper end portions extending in the front-rear direction at the upper ends of the pair of first side plate portions.
The pair of first side edge portions includes a pair of first side edge upper end portions extending in the front-rear direction at the upper ends of the pair of first side edge portions.
The first bottom plate portion includes a pair of protrusions protruding in the left-right direction beyond the pair of first side plate portions.
The guide member is outside the pair of first side plate portions and the pair of first side edge portions so as to extend along the pair of first side plate upper ends and the pair of first side edge upper ends. Is attached to
The repair part for an excavation bucket according to claim 1, wherein the guide member has a thickness in the left-right direction smaller than the protrusion length of each of the pair of protrusions. The pair of first side plate portions includes a pair of first side plate upper end portions extending in the front-rear direction at the upper ends of the pair of first side plate portions.
The pair of first side edge portions includes a pair of first side edge upper end portions extending in the front-rear direction at the upper ends of the pair of first side edge portions.
The excavation according to claim 1, wherein the pair of first side plate upper ends and the pair of first side edge upper ends are formed so as to extend diagonally downward from the rear side to the front side. Bucket repair parts. The repair parts of the excavation bucket according to claim 1 and
With an excavation bucket part attached to the repair part,
The excavation bucket part
A second bottom plate portion that includes a flat plate-shaped second flat portion and a second curved portion that curves downward at the rear, and is coupled to the first bottom plate portion.
An excavation bucket provided with a pair of flat plate-shaped second side plate portions attached to the second flat portion and the second curved portion on the left and right sides of the second bottom plate portion and coupled to the pair of first side plate portions. In
Further provided with a pair of flat plate-shaped second side edge portions attached to the front side of the pair of second side plate portions and coupled to the pair of first side edge portions.
The excavation bucket component is coupled to the guide member of the repair component at at least one of the second bottom plate portion, the pair of second side plate portions, and the pair of second side edge portions. A drilling bucket that features that. The first bottom plate portion includes the upper end portion of the first bottom plate extending in the left-right direction at the upper end of the first bottom plate portion.
The pair of first side plate portions includes a pair of first side plate upper end portions extending in the front-rear direction at the upper ends of the pair of first side plate portions.
The pair of first side edge portions includes a pair of first side edge upper end portions extending in the front-rear direction at the upper ends of the pair of first side edge portions.
The guide member extends along the upper end portion of the first bottom plate, the upper end portion of the pair of first side plates, and the upper end portion of the pair of first side edges, and the first bottom plate portion and the pair of first portions. It is attached to one side plate portion and the pair of first side edge portions.
The second bottom plate portion includes a second bottom plate portion extending in the left-right direction at the lower end of the second bottom plate portion.
The pair of second side plate portions includes a pair of second side plate lower end portions extending in the front-rear direction at the lower ends of the pair of second side plate portions.
The pair of second side edge portions includes a pair of second side edge lower ends extending in the front-rear direction at the lower ends of the pair of second side edge portions.
The excavation bucket component is characterized in that the lower end portion of the second bottom plate, the lower end portion of the pair of second side plates, and the lower end portion of the pair of second side edges are coupled to the guide member of the repair part. 5. The excavation bucket according to claim 5. A side edge reinforcing member is attached to the pair of first side edge portions and the pair of second side edge portions so as to straddle the first side edge portion and the second side edge portion in the vertical direction, respectively. The excavation bucket according to claim 5, wherein the excavation bucket is provided. A pair of side cutters protruding forward from the pair of first side edge portions are attached to the pair of first side edge portions.
A claim characterized in that each of the side edge reinforcing members is attached to the pair of first side edge portions and the pair of second side edge portions so as to be terminated in front of the pair of side cutters. Item 7. The excavation bucket according to item 7. The pair of first side plate portions includes a pair of first side plate upper end portions extending in the front-rear direction at the upper ends of the pair of first side plate portions.
The pair of first side edge portions includes a pair of first side edge upper end portions extending in the front-rear direction at the upper ends of the pair of first side edge portions.
The first bottom plate portion includes a pair of protrusions protruding in the left-right direction beyond the pair of first side plate portions.
The guide member is outside the pair of first side plate portions and the pair of first side edge portions so as to extend along the pair of first side plate upper ends and the pair of first side edge upper ends. Is attached to
The thickness of the guide member in the left-right direction is formed to be smaller than the protrusion length of each of the pair of protrusions.
The pair of second side plate portions includes a pair of second side plate lower end portions extending in the front-rear direction at the lower ends of the pair of second side plate portions.
The pair of second side edge portions includes a pair of second side edge lower ends extending in the front-rear direction at the lower ends of the pair of second side edge portions.
The excavation bucket component is coupled to the guide member of the repair component at the pair of second side plate lower ends and the pair of second side edge lower ends.
The excavation bucket according to claim 5, wherein the guide member is arranged inside the pair of protrusions in the left-right direction. The pair of first side plate portions includes a pair of first side plate upper end portions extending in the front-rear direction at the upper ends of the pair of first side plate portions.
The pair of first side edge portions includes a pair of first side edge upper end portions extending in the front-rear direction at the upper ends of the pair of first side edge portions.
The pair of first side plate upper ends and the pair of first side edge upper ends are formed so as to extend diagonally downward from the rear side to the front side.
The pair of second side plate portions includes a pair of second side plate lower end portions extending in the front-rear direction at the lower ends of the pair of second side plate portions.
The pair of second side edge portions includes a pair of second side edge lower ends extending in the front-rear direction at the lower ends of the pair of second side edge portions.
A pair of rib members are attached to the inner surface of the pair of second side edge portions in the pair of second side edge portions.
The pair of second side plate lower ends and the pair of second side edge lower ends are formed so as to extend diagonally from the rear side to the front side in a direction away from the pair of rib members.
The excavation according to claim 5, wherein the excavation bucket component is coupled to the guide member of the repair component at the pair of second side plate lower ends and the pair of second side edge lower ends. bucket.

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