Corner segment having protrusions on wear zones
11499298 · 2022-11-15
Assignee
Inventors
Cpc classification
E02F3/8152
FIXED CONSTRUCTIONS
International classification
Abstract
A corner segment, configured to be mounted to a work implement, may include a body having a plurality of surfaces including a rear surface, an upper surface, a front surface, a bottom surface, an outer side surface, an inner side surface, and a corner surface that is adjacent to each of the front surface, the outer side surface, the upper surface, and the bottom surface. A portion of the bottom surface forms a bottom surface wear zone, and a portion of the front surface forms a front surface wear zone, The corner segment may also include a plurality of protrusions provided on wear zones, the wear zones including the bottom surface wear zone and the front surface wear zone.
Claims
1. A corner segment configured to be mounted to a work implement, the corner segment comprising: a body having a plurality of surfaces including: a rear surface; an upper surface; a front surface; a bottom surface; an outer side surface; an inner side surface; and a corner surface that is adjacent to each of the front surface, the outer side surface, the upper surface, and the bottom surface, wherein a portion of the bottom surface forms a bottom surface wear zone, and a portion of the front surface forms a front surface wear zone; and a plurality of protrusions provided on each of the bottom surface wear zone and the front surface wear zone, wherein the bottom surface includes a planar portion, a ridged portion adjacent to the planar portion, and an inclined portion that is adjacent to the ridged portion and to the front surface, and that is angled relative to the planar portion, the ridged portion and the inclined portion having the bottom surface wear zone with protrusions.
2. The corner segment of claim 1, wherein the bottom surface wear zone is formed only on an outer half of the bottom surface that is adjacent to the corner surface.
3. The corner segment of claim 1, wherein the front surface wear zone is formed only on an outer half of the front surface that is adjacent to the corner surface.
4. The corner segment of claim 1, wherein the corner surface forms a corner surface wear zone and a portion of the outer side surface forms a side surface wear zone.
5. The corner segment of claim 4, wherein the side surface wear zone is formed only on an edge of the side surface that is adjacent to the corner surface.
6. The corner segment of claim 4, wherein front surface protrusions, of the plurality of protrusions, are provided on the front surface wear zone, and are aligned along a width of the front surface, wherein bottom surface protrusions, of the plurality of protrusions, are provided on the bottom surface wear zone, and are positioned along at least one arc that extends across the bottom surface, wherein side surface protrusions, of the plurality of protrusions, are provided on the side surface wear zone, and are positioned along at least one arc that extends across the side surface, and wherein corner surface protrusions, of the plurality of protrusions, are provided on the corner surface wear zone, and are positioned along at least one arc that extends across the corner surface.
7. The corner segment of claim 1, wherein the plurality of protrusions are evenly spaced from each other.
8. The corner segment of claim 1, wherein the plurality of protrusions are formed of a material having a greater hardness than a material that forms the body of the corner segment.
9. A corner segment configured to be mounted to a work implement, the corner segment comprising: a body including: a mounting portion having a mounting portion outer side surface; and a lip portion, integrally formed with the mounting portion, the lip portion having: a lip portion front surface; a lip portion upper surface; a lip portion bottom surface; and a lip portion outer corner surface that is adjacent to each of the lip portion front surface, the lip portion upper surface, the lip portion bottom surface, and the mounting portion outer side surface, wherein a portion of the lip portion bottom surface forms a bottom surface wear zone, and a portion of the lip portion front surface forms a front surface wear zone; and a plurality of protrusions provided on each of the bottom surface wear zone and the front surface wear zone, wherein the bottom surface of the lip portion includes an angled lip portion that extends at an angle relative to the bottom surface of the mounting portion, and a ridged portion.
10. The corner segment of claim 9, wherein the bottom surface wear zone is formed only on an outer half of the lip portion bottom surface that is adjacent to the lip portion corner surface.
11. The corner segment of claim 9, wherein the front surface wear zone is formed only on an outer half of the lip portion front surface that is adjacent to the lip portion corner surface.
12. The corner segment of claim 9, wherein the corner surface forms a corner surface wear zone and a portion of the outer side surface forms a side surface wear zone.
13. The corner segment of claim 12, wherein the side surface wear zone is formed only on an edge of the mounting portion outer side surface that is adjacent to the lip portion corner surface.
14. The corner segment of claim 13, wherein front surface protrusions, of the plurality of protrusions, are provided on the front surface wear zone, and are aligned along a width of the lip portion front surface, wherein bottom surface protrusions, of the plurality of protrusions, are provided on the bottom surface wear zone, and are positioned along at least one arc that extends across the lip portion bottom surface, wherein side surface protrusions, of the plurality of protrusions, are provided on the side surface wear zone, and are positioned along at least one arc that extends across the mounting portion outer side surface, and wherein corner surface protrusions, of the plurality of protrusions that are provided on the corner surface wear zone, are arranged in a staggered pattern on the lip portion corner surface.
15. The corner segment of claim 9, wherein the plurality of protrusions are evenly spaced from each other.
16. The corner segment of claim 9, wherein the plurality of protrusions are formed of a material having a greater hardness than a material that forms the body of the corner segment.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION
(10) Both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the features, as claimed. As used herein, the terms “comprises,” “comprising,” “having,” including,” or other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but may include other elements not expressly listed or inherent to such a process, method, article, or apparatus. Moreover, in this disclosure, relative terms, such as, for example, “about,” “generally, “substantially,” and “approximately” are used to indicate a possible variation of ±10% in the stated value.
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(13) As shown in
(14) The lip portion front surface 118 is generally planar, and may be perpendicular to the mounting portion upper surface 110 and angled relative to the lip portion upper surface 116. An edge 128 between the lip portion upper surface 116 and the lip portion front surface 118 may be a fillet edge. The lip portion outer side surface 122 is generally planar, and may be perpendicular to the mounting portion upper surface 110 and to the lip portion front surface 118. An edge 130 between the lip portion outer side surface 122 and the lip portion upper surface 116 may be a fillet edge. The lip portion corner surface 120 is a curved surface or a curved portion that is adjacent to the planar lip portion upper surface 116, the planar lip portion front surface 118, and the planar lip portion outer side surface 122. By virtue of the curve of the lip portion corner surface 120, the lip portion corner surface 120 may be continuous, i.e., uninterrupted by an edge, with the lip portion front surface 118 and the lip portion outer side surface 122. An edge 132 between the lip portion corner surface 120 and the lip portion upper surface 116 follows a slope or angle of the lip portion upper surface 116, and may be a fillet edge.
(15) A plurality of protrusions or inserts 134 may be provided on one or more surfaces of the lip portion 108 of the corner segment 102. For example, as shown in
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(19) As shown in
(20) Although the wear zone 152 is shown in
(21) Referring to
(22) With reference to
(23) In addition, four protrusions 134 may be provided on the outer side surface wear zone 158. The protrusions 134 provided on the outer side surface wear zone 158 may be arranged in a particular pattern. For example, as shown in
(24) Referring to
(25) In addition, of the three protrusions 134 positioned along the arc E-E, one protrusion 134.sub.E-1 may be closest to the lip portion front surface 118 and closest to the inner side surface 150, one protrusion 134.sub.E-2 may be closest to the lip portion outer side surface 122, and another protrusion 134.sub.E-3 may be positioned between the protrusions 134.sub.E-1 and 134.sub.E-2. That is, with respect to a depth along the z-axis, the protrusion 134.sub.E-2 may be at a greater depth than the protrusion 134.sub.E-3, and the protrusion 134.sub.E-3 may be at a greater depth than the protrusion 134.sub.E-1. In addition, with respect to a length along the x-axis, the protrusion 134.sub.E-2 may be at a greater length than the protrusion 134.sub.E-3, and the protrusion 134.sub.E-3 may be at a greater length than the protrusion 134.sub.E-1. The other protrusion 134.sub.E-3 may closer to the protrusion 134.sub.E-2 than the protrusion 134.sub.E-1. In addition, the protrusion 134.sub.E-2 and the protrusion 134.sub.E-3 may be positioned within ridges 146 of the ridged portion 144.
(26) Of the four protrusions 134 positioned along the arc F-F, one protrusion 134.sub.F-1 may be closest to the lip portion front surface 118 and closest to the inner side surface 150, and one protrusion 134.sub.F-2 may be closest to the lip portion outer side surface 122 and closest to the back surface 148. The other two protrusions 134.sub.F-3 and 134.sub.F-4 are positioned between the protrusion 134.sub.F-1 and the protrusion 134.sub.F-2 along the arc F-F. The protrusions 134.sub.F-2, 134.sub.F-3, and 134.sub.F-4 may be positioned within ridges 146 of the ridged portion 144. With respect to a length along the x-axis, the protrusion 134.sub.F-2 may be at a greater length than the protrusion 134.sub.F-3, the protrusion 134.sub.F-3 may be at a greater length than the protrusion 134.sub.F-4, and the protrusion 134.sub.F-4 may be at a great length than the protrusion 134.sub.F-1. And, with respect to a depth along the z-axis, the protrusion 134.sub.F-2 may be at a greater depth than the protrusion 134.sub.F-3, the protrusion 134.sub.F-3 may be at a greater depth than the protrusion 134.sub.F-4, and the protrusion 134.sub.F-4 may be at a greater depth than the protrusion 134.sub.F-1.
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(28) The insert 134 also may have a semi-spherical, or dome-shaped top portion 170. The top portion 170 may have a height of approximately 9 mm. The top portion 170 is configured to protrude from the surface of the lip portion 108 on which the insert 134 is inserted. That is, when installed or inserted into the holes formed in the surfaces of the corner segment 102, the protrusions 134 protrude from the respective surfaces by approximately 9 mm. The holes formed on the surfaces of the corner segment 102 may be cast or machined, for example.
(29) The protrusions 134 may be formed of a material having a greater hardness than that of a material that forms the corner segment 102. For example, the protrusions 134 may be formed of one of tungsten carbide, ceramic, industrial diamond, or a combination thereof.
INDUSTRIAL APPLICABILITY
(30) The corner segment 102 of the present disclosure, and, in particular, the corner segment 102 having the protrusions 134 provided on the wear zone 152, provides an easily replaceable GET for a work implement, such as the bucket 100, that reduces uneven wear and thereby prolongs the overall life of the GET. In addition, the particular arrangement of the protrusions 134 on wear zones of the corner segment 102 of the present disclosure reduces wear along curved and angled surfaces of the corner segment 102.
(31) The lip portion upper surface 116, the lip portion front surface 118, the lip portion corner surface 120, the lip portion outer side surface 122, the lip portion bottom surface 136, and the angled lip 138 of the corner segment 102 are working surfaces. That is, when the corner segment 102 is mounted to the bucket 100, and the bucket 100 is in use, these surfaces of the lip portion 108 engage the material being moved by the bucket 100.
(32) The arrangement of the protrusions 134 on the wear zone 152 serves to reduce accelerated wear on the surfaces of the corner segment 102 that engage the material. More specifically, the arrangements of the protrusions 134 on each of the front surface wear zone 154, shown in
(33) By providing the protrusions 134 on an angled lip 138 and on the ridged portion 144, and not providing protrusions 134 on other portions of the lip portion bottom surface 136 or the mounting portion bottom surface 114, bottom surfaces of corner segment 102, including the lip portion bottom surface 136 and the mounting portion bottom surface 114 of the corner segment 102, can remain on plane with respect to a bottom surface of the bucket 100, and with respect to a working surface, such as a flat ground surface. In addition, by providing the protrusions 134 on the lip portion front surface 118, the lip portion corner surface 120, and the lip portion outer side surface 122, and not on the lip portion upper surface 116, the lip portion upper surface 116 remains planar and sharp for biting into a material to be moved by the bucket 100.
(34) Further, providing the protrusions 134 on the lip portion front surface 118, the lip portion corner surface 120, and the lip portion outer side surface 122 prevents wash-out of the material of the lip portion 108 that holds the protrusions 134 in the holes on the angled lip portion 138 and on the ridged portion 144. That is, without the protrusions 134 on the lip portion front surface 118, the lip portion corner surface 120, and the lip portion outer side surface 122, the material that forms the lip portion 108 is susceptible to wear on the lip portion front surface 118, the lip portion corner surface 120, and the lip portion outer side surface 122. As the material wears on the lip portion front surface 118, for example, the holes formed in the angled lip 138 and in the ridged portion 144 may be exposed. That is, the lip portion front surface 118 loses material due to wear, resulting in exposure or opening up of the holes formed in the angled lip 138 and in the ridged portion 144. As a result, the interference fit maintaining the protrusions 134 in those holes may be lost, and the protrusions 134 may fall out. Thus, the addition of protrusions 134 on the lip portion front surface 118, the lip portion corner surface 120, and the lip portion outer surface 122 provide the additional benefit of preventing loss of the protrusions 134 on the angled lip 138 and on the ridged portion 144, in addition to reducing wear on those surfaces of the lip portion 108, and prolonging the overall life of the bucket 100.
(35) To install the protrusions 134 on the corner segment 102, a plurality of holes may be cast, machined, drilled, or otherwise formed in the lip portion front surface 118, the lip portion corner surface 120, the lip portion outer side surface 122, the angled lip 138, and the ridged portion 144. The positions of the drilled holes on the surfaces of the corner segment 102 correspond to the arrangement of the protrusions 134, such as the arrangement shown in
(36) The corner segment 102 with protrusions 134 of the present disclosure provides a GET that reduces accelerated wear on some surfaces or a portion of surfaces of the GET, or balances wear more evenly across the surfaces of the component, by virtue of the arrangement of the protrusions 134 on one or more wear zones. As a result, the corner segment 102 with protrusions 134 may require less frequent replacement as compared to that of a conventional GET. In addition, the corner segment 102 with protrusions 134 also provides a component that can be used on planar, angled, and/or curved surfaces of a work implement, such as a bucket. Further, installation or replacement of the corner segment 102 with protrusions 134 is relatively simple, in that it may not require burning, cutting, or welding, and may require relatively less machinery and manual labor as compared to a welded wear plate, for example. Further, replacement of the corner segment 102 with the protrusions 134 may incur less downtime, as compared to replacement of a welded wear plate or replacement of the work implement. As a result, the replaceable corner segment 102 with protrusions 134 of the present disclosure reduces the time, cost, machinery, and/or manual labor needed to replace a GET and/or components thereof.
(37) The geometric shapes, geometric relationships, and dimensions of the surfaces, edges, and through holes of the corner segment 102, and of the portions and edges of the protrusions 134, as described above, are examples, and other geometric shapes, geometric relationships, and dimensions may be used. The materials that form the corner segment 102 and the protrusions 134 described above are examples, and other materials may be used.
(38) The wear zones described herein, and their relationships to the surfaces of the corner segment 102, are examples, and other wear zones or relationships of wear zones to surfaces may be used. For example, the front surface wear zone 154 may be only on an outer third of the width W.sub.118 of the lip portion front surface 118, i.e., the third of the width W.sub.118 closest to the lip portion outer side surface 122. Similarly, the angled lip wear zone 160 may only be on an outer third of the width W.sub.138 of the angled lip 138, i.e., the third of the width W.sub.138 that is closest to the lip portion outer side surface 122. Further, the ridged portion wear zone 162 may only be on an outer third of the width W.sub.144 of the ridged portion 144, i.e., the third of the width W.sub.144 that is closest to the lip portion outer side surface 122.
(39) In addition, the arrangements and patterns of the protrusions 134 on each wear zone are examples, and other arrangements or patterns may be used. For example, the radii of curvature of the arcs along which the protrusions 134 are arranged may differ from the values noted above. In addition, the relationships between the radii of curvature may differ from the relationships described above. Moreover, the offset distance between the center C and the center D, and the offset distance between the center E and the center F may differ from the distances noted above. Alternatively, the center C and the center D may be concentric, and the center E and the center F may be concentric. And, for example, with reference to
(40) Further, the corner segment 102 with the protrusions 134 provided in one or more wear zones may be used on a work implement of any type, size, or configuration. That is, the shapes, geometric relationships, and dimensions of the corner segment, the particular locations and sizes of the wear zones, and the arrangement of the inserts in the wear zones may be subject to change based on the type, the size, or the configuration of the work implement.
(41) It will be apparent to those skilled in the art that various modifications and variations can be made to the disclosed corner segment without departing from the scope of the disclosure. Other embodiments of the corner segment will be apparent to those skilled in the art from consideration of the specification and the accompanying figures. It is intended that the specification, and, in particular, the examples provided herein be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims and their equivalents.