WO2022209491A1 - 耐摩耗部品 - Google Patents
耐摩耗部品 Download PDFInfo
- Publication number
- WO2022209491A1 WO2022209491A1 PCT/JP2022/007975 JP2022007975W WO2022209491A1 WO 2022209491 A1 WO2022209491 A1 WO 2022209491A1 JP 2022007975 W JP2022007975 W JP 2022007975W WO 2022209491 A1 WO2022209491 A1 WO 2022209491A1
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- WO
- WIPO (PCT)
- Prior art keywords
- base material
- core
- support member
- material portion
- support members
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 150
- 239000002184 metal Substances 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 230000001012 protector Effects 0.000 description 25
- 229910001208 Crucible steel Inorganic materials 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 6
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910001315 Tool steel Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
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- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910017318 Mo—Ni Inorganic materials 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
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- 102200082816 rs34868397 Human genes 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/18—Tracks
- B62D55/20—Tracks of articulated type, e.g. chains
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/285—Teeth characterised by the material used
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/18—Tracks
- B62D55/20—Tracks of articulated type, e.g. chains
- B62D55/202—Wheel engaging parts; Wheel guides on links
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/18—Tracks
- B62D55/20—Tracks of articulated type, e.g. chains
- B62D55/205—Connections between track links
- B62D55/21—Links connected by transverse pivot pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/18—Tracks
- B62D55/26—Ground engaging parts or elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2875—Ripper tips
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2883—Wear elements for buckets or implements in general
Definitions
- the present disclosure relates to wear resistant parts.
- Patent Document 1 Japanese Patent Application Laid-Open No. 1-55370
- Patent Document 2 JP-A-2-176026
- Patent Document 3 JP-A-9-192819
- wear-resistant parts are required to have improved wear resistance.
- SUMMARY OF THE DISCLOSURE It is an object of the present disclosure to provide a wear resistant component with improved wear resistance.
- the wear-resistant part of the present disclosure includes a metal base material, a core embedded in the base material and having a higher hardness than the base material, and at least one end exposed from the surface of the base material. a plurality of support members extending toward the interior of the material portion and defining the position of the core within the base material portion by contacting the core at portions other than the one end.
- FIG. 1 is a schematic perspective view showing the outer shape of a track chain member according to Embodiment 1.
- FIG. 2 is a schematic perspective view showing the internal structure of the track chain member according to Embodiment 1.
- FIG. 3 is a schematic cross-sectional view showing the internal structure of the projecting portion of the track chain member according to Embodiment 1.
- FIG. 4 is a schematic cross-sectional view showing the internal structure of the projecting portion of the track chain member according to Embodiment 1.
- FIG. FIG. 5 is a schematic perspective view showing the outer shape of a track chain member according to Embodiment 2.
- FIG. FIG. 6 is a schematic perspective view showing the internal structure of a track chain member according to Embodiment 2.
- FIG. 7 is a schematic cross-sectional view showing the internal structure of the projecting portion of the track chain member according to Embodiment 2.
- FIG. 8 is a schematic cross-sectional view showing the internal structure of the projecting portion of the track chain member according to Embodiment 2.
- FIG. 9 is a schematic perspective view showing the outer shape of a track chain member according to Embodiment 3.
- FIG. 10 is a schematic perspective view showing the internal structure of a track chain member according to Embodiment 3.
- FIG. 11 is a schematic cross-sectional view showing the internal structure of the projecting portion of the track chain member according to Embodiment 3.
- FIG. 12 is a schematic cross-sectional view showing the internal structure of the projecting portion of the track chain member according to Embodiment 3.
- FIG. 13 is a schematic cross-sectional view showing the internal structure of the projecting portion of the track chain member according to Embodiment 3.
- FIG. 14 is a schematic perspective view showing the outer shape of the lug bar according to Embodiment 4.
- FIG. 15 is a schematic perspective view showing the internal structure of the lug bar according to Embodiment 4.
- FIG. 16 is a schematic cross-sectional view showing the internal structure of the lug bar according to Embodiment 4.
- FIG. 17 is a schematic cross-sectional view showing the internal structure of the lug bar according to Embodiment 4.
- FIG. 18 is a schematic perspective view showing the outer shape of the side protector according to Embodiment 5.
- FIG. 19 is a schematic perspective view showing the internal structure of the side protector according to Embodiment 5.
- FIG. 19 is a schematic perspective view showing the internal structure of the side protector according to Embodiment 5.
- FIG. 20 is a schematic cross-sectional view showing the internal structure of the side protector according to Embodiment 5.
- FIG. 21 is a schematic cross-sectional view showing the internal structure of the side protector according to Embodiment 5.
- FIG. 22 is a schematic perspective view showing the outer shape of a tooth according to Embodiment 6.
- FIG. 23 is a schematic perspective view showing the internal structure of the tooth according to Embodiment 6.
- FIG. 24 is a schematic plan view showing the internal structure of the tooth according to Embodiment 6.
- a wear resistant part according to the present disclosure includes a metal base material, a core embedded in the base material and having a higher hardness than the base material, and at least one end exposed from the surface of the base material. and a plurality of support members extending toward the interior of the base material portion and defining the position of the core within the base material portion by contacting the core at portions other than the one end.
- a core having a hardness higher than that of the base material is embedded in the base material.
- the position of the core within the base material is defined by the plurality of supporting members.
- the core having high hardness is held at an appropriate position within the base material portion by the plurality of support members, thereby improving the wear resistance of the wear resistant component.
- the plurality of support members may include the first support member.
- the first support member may have a rod-like shape extending from a first end, which is one end, to a second end.
- the first support member may be exposed from the surface of the base material portion at the first end and contact the core at the second end. Such a configuration allows the position of the core to be defined by the second end of the first support member.
- the plurality of support members may include a second support member.
- the second support member has a rod-like shape including a third end that is one end and a fourth end that is an end opposite to the third end.
- the second support member may be exposed from the surface of the base material portion at least at the third end, and may be in contact with the core at a side surface located between the third end and the fourth end. With such a configuration, the position of the core can be defined by the side surface located between the third end and the fourth end of the second support member.
- the plurality of support members may include a third support member.
- the third support member includes a rod-shaped first portion including a fifth end that is one end exposed from the base material and a sixth end located inside the base material, and a base material. connecting the rod-shaped second portion including the seventh end exposed from the portion and the eighth end located inside the base material portion, the sixth end and the eighth end; and a rod-shaped third portion that contacts the .
- the position of the core can be defined by the third portion of the third support member.
- the first portion and the second portion may be parallel.
- the third portion may be orthogonal to the first portion and the second portion. Such a configuration facilitates defining the position of the core by the third portion of the third support member.
- the plurality of support members may include a fourth support member.
- the fourth support member may have a rod-like shape including a ninth end that is one end exposed from the base material and a tenth end located inside the base material. good.
- the region that includes the tenth end may be a collar that has a greater cross-sectional area perpendicular to the longitudinal direction than an adjacent region.
- the fourth support member may pass through the core and contact the core at the collar. With such a configuration, the position of the core can be defined by the flange portion of the fourth support member.
- FIG. 1 is a schematic perspective view showing the outer shape of a track chain member according to Embodiment 1.
- FIG. 2 is a schematic perspective view showing the internal structure of the track chain member according to Embodiment 1.
- FIG. 2 corresponds to a state in which the inside of the track chain member in FIG. 1 is seen through.
- 3 and 4 are schematic cross-sectional views showing the internal structure of the projecting portion of the track chain member according to Embodiment 1.
- FIG. 1 to 4 the X-axis direction corresponds to the rotation direction of the crawler belt formed by connecting the track chain members.
- FIG. 3 is a cross-sectional view in the XY plane.
- FIG. 3 is a cross-sectional view along line III-III of FIG.
- FIG. 4 is a cross-sectional view in the YZ plane.
- FIG. 4 is a cross-sectional view along line IV-IV in FIG.
- a track chain member 1 according to Embodiment 1 is a track chain member that forms a crawler belt by annularly connecting a plurality of track chain members.
- the track chain member 1 has a plate-like shape including an inner surface 10A that is a first plane and a tread surface 10B that is a second plane located on the opposite side in the thickness direction (Y-axis direction).
- the track chain member 1 includes a body portion 11 , a first protrusion 12 , a second protrusion 13 , a third protrusion 14 , a fourth protrusion 15 and a fifth protrusion 16 .
- the first projecting portion 12, the second projecting portion 13, and the third projecting portion 14 project from the body portion 11 in the first direction along the X-axis direction.
- the fourth protruding portion 15 and the fifth protruding portion 16 protrude from the main body portion 11 along the X-axis direction in a second direction opposite to the first direction.
- a through hole 10E is formed in the first projecting portion 12 so as to penetrate the first projecting portion 12 in the Z-axis direction.
- a through hole 10 ⁇ /b>D is formed in the second projecting portion 13 so as to penetrate the second projecting portion 13 in the Z-axis direction.
- a through hole 10C is formed in the third projecting portion 14 so as to penetrate the third projecting portion 14 in the Z-axis direction.
- a through hole 10G is formed in the fourth projecting portion 15 so as to penetrate the fourth projecting portion 15 in the Z-axis direction.
- a through hole 10 ⁇ /b>F is formed in the fifth projecting portion 16 so as to penetrate the fifth projecting portion 16 in the Z-axis direction.
- the fourth protrusion 15 is inserted between the first protrusion 12 and the second protrusion 13, and the fifth protrusion 16 is inserted between the second protrusion 13 and the third protrusion 14.
- the track chain members 1 can be arranged side by side in the X-axis direction.
- the through-hole 10E, the through-hole 10G, the through-hole 10D, the through-hole 10F, and the through-hole 10C are aligned in this order.
- Adjacent track chain members 1 are connected by inserting connecting members such as bushes and pins into the through holes 10C to 10G.
- a pair of engaging portions 11A projecting from the inner surface 10A in the Y-axis direction (thickness direction of the track chain member 1) are formed in a region corresponding to the main body portion 11 of the inner surface 10A.
- the engaging portion 11A receives a driving force from a sprocket (not shown) of a crawler belt-type underbody device by meshing with the sprocket. That is, the track chain member 1 is a member having both the function of a shoe and the function of a link of a crawler belt system.
- the engaging portion 11A meshes with the sprocket in a state in which earth and sand can enter. Therefore, the engaging portion 11A is required to have high wear resistance.
- the track chain member 1 includes a base material portion 10, a core 40, and a plurality of support members 60,70.
- the base material portion 10 is made of metal.
- cast steel can be used as the metal forming the base material portion 10 .
- Employable cast steel is not particularly limited as long as it has appropriate wear resistance. Low alloys such as Cr-Mo cast steel, Cr-Mo-V-W cast steel, Cr-Mo-Ni cast steel, high Mn cast steel, boron cast steel, Cr-Mo-V cast steel, and high Cr cast steel Cast steel may be used.
- cast steel having a chemical composition such as carbon steel for machine structural use or alloy steel for machine structural use (for example, S45C, SCM435, as well as SMn steel, SCr steel, SCM steel, etc. containing an equivalent amount of carbon) specified in JIS standards may be adopted.
- metal forming the base material portion 10 cast iron having a higher carbon content than cast steel may be employed.
- the core 40 is embedded in a region of the base material portion 10 corresponding to the engaging portion 11A.
- the core 40 has hardness higher than that of the base material portion 10 .
- the core 40 may be a sintered body of particles or powder of hard material such as high speed tool steel, cemented carbide.
- the shaping of the core 40 before sintering may be performed by, for example, a 3D printer.
- the core 40 may be produced by a method such as rolling (including profile rolling), cutting, forging, or casting instead of sintering or in combination with sintering. Further, a build-up layer containing particles or powder of high-speed tool steel, cemented carbide, or the like may be formed on the surface of the core 40 .
- the core 40 includes a top surface 41 , a pair of first side surfaces 42 , a pair of second side surfaces 43 and a bottom surface 45 .
- the top surface 41, the first side surface 42, the second side surface 43 and the bottom surface 45 all have planar shapes.
- the top surface 41 has a rectangular shape.
- a pair of first side surfaces 42 are connected to areas corresponding to a pair of opposing sides of the rectangle and are inclined with respect to the top surface 41 .
- a pair of second side surfaces 43 are connected to areas corresponding to another pair of opposite sides of the rectangle and are inclined with respect to the top surface 41 .
- the first side surface 42 and the second side surface 43 are arranged to connect the top surface 41 and the bottom surface 45 .
- the engaging portion 11A includes a top surface 11B, a pair of first side surfaces 11C, and a pair of second side surfaces 11D.
- the top surface 11B, the first side surface 11C and the second side surface 11D all have planar shapes.
- the top surface 11B has a rectangular shape.
- a pair of first side surfaces 11C are connected to regions corresponding to a pair of opposing sides of the rectangle and are inclined with respect to the top surface 11B.
- a pair of second side surfaces 11D are connected to regions corresponding to another pair of opposite sides of the rectangle and are inclined with respect to the top surface 11B.
- the top surface 41 of the core 40 is along the top surface 11B of the engaging portion 11A.
- a pair of first side surfaces 42 of the core 40 are along a pair of first side surfaces 11C of the engaging portion 11A.
- a second side surface 43 of the core 40 extends along the pair of second side surfaces 11D of the engaging portion 11A. That is, the core 40 has a shape corresponding to the outer shape of the engaging portion 11A.
- the plurality of support members 60 , 70 includes the first support member 60 .
- the first support member 60 has a rod-like shape extending from a first end 61 as one end to a second end 62 .
- the first support member 60 is exposed from the surface of the base material portion 10 at the first end portion 61 .
- First support member 60 contacts core 40 at second end 62 .
- a region including first end portion 61 protrudes from the surface of base material portion 10 .
- the first support member 60 contacts the top surface 41 , the first side surface 42 or the second side surface 43 of the core 40 at the second end 62 , and the top surface 41 , the first side surface 42 or the second side surface of the core 40 . It extends in a direction perpendicular to 43 .
- Top surface 41 , first side 42 and second side 43 of core 40 all contact second end 62 of at least one first support member 60 .
- the plurality of support members 60, 70 includes a second support member 70.
- the second support member 70 has a rod-like shape including a third end 71 that is one end and a fourth end 72 that is the end opposite to the third end 71 . have.
- the second support member 70 is exposed from the surface of the base material portion 10 at the third end portion 71 .
- Second support member 70 contacts core 40 at side surface 73 located between third end 71 and fourth end 72 .
- a region including third end portion 71 protrudes from the surface of base material portion 10 .
- the fourth end portion 72 is located inside the base material portion 10 , but the second support member 70 penetrates the base material portion 10 so that the fourth end portion 72 is positioned inside the base material portion 10 .
- the second support member 70 contacts the bottom surface 45 of the core 40 at side surfaces 73 and extends in a direction parallel to the bottom surface 45 .
- Bottom surface 45 of core 40 contacts side surfaces 73 of at least one (here, plurality) of second support members 70 .
- each of the plurality of support members 60 and 70 has at least one end (first end 61 and third end 71) exposed from the surface of base material portion 10. , and extends toward the inside of the base material portion 10 .
- Each of the plurality of support members 60 and 70 is in contact with the core 40 at a portion other than one end (the first end 61 and the third end 71), so that the inside of the base material portion 10 is It defines the position of the core 40 .
- the support members 60, 70 may be made of metal. It is preferable that the metal forming the support members 60 and 70 has a hardness equal to or higher than that of the metal forming the base material portion 10 .
- cast iron with a high carbon content is used as a support member. It can be adopted as a metal that constitutes 60 and 70. From the viewpoint of improving wear resistance, it is preferable that the support members 60 and 70 have hardness higher than that of the base material portion 10 . However, from the viewpoint of defining the position of core 40, support members 60 and 70 only need to have strength to hold core 40 at a desired position. Support members 60, 70 may be made of mild steel, for example.
- the core 40 having higher hardness than the base material portion 10 is embedded in the base material portion 10 .
- the position of the core 40 within the base material portion 10 is defined by the plurality of support members 60 and 70 . Since the core 40 having a high hardness is held at an appropriate position within the base material portion 10 by the plurality of support members 60 and 70 in this way, the track chain member 1 has excellent wear resistance. .
- a region including one end of each of the support members 60 and 70 of the present embodiment protrudes from the surface of the base material portion 10 .
- the track chain member 1 when the track chain member 1 is manufactured by casting, one end of each of the support members 60 and 70 is brought into contact with or pierced into the wall surface defining the cavity of the mold to fix the support members 60 and 70 to the mold. After that, the core 40 can be supported by the support members 60 and 70 . After that, the core 40 can be easily arranged at an appropriate position by pouring the metal forming the base material portion 10 in a molten state.
- the wear resistant component according to the present disclosure, it is possible to provide a wear resistant component with improved wear resistance.
- the track chain member 1 of Embodiment 1 can be manufactured, for example, as follows. First, the third end 71 of the second support member 70 is brought into contact with or pierced into the wall surface defining the cavity of the mold to fix the second support member 70 to the mold. Next, the core 40 is placed on the second support member 70 . Thereafter, the first end 61 of the first support member 60 is brought into contact with or penetrates the wall defining the cavity of the mold, and the second end 62 is brought into contact with the core 40 . This allows the core 40 to be properly positioned within the mold cavity. Then, the metal forming the base material portion 10 is poured in a molten state.
- FIG. 2 a second embodiment, which is another embodiment, will be described with reference to FIGS. 5 to 8.
- FIG. The track chain member 1 as a wear resistant component of the second embodiment basically has the same structure as that of the first embodiment, provides similar effects, and can be manufactured in the same manner.
- the track chain member 1 of Embodiment 2 differs from Embodiment 1 in that it includes a third support member 80 instead of the second support member 70 .
- the parts different from the first embodiment will be described below.
- FIG. 5 is a schematic perspective view showing the outer shape of the track chain member according to Embodiment 2.
- FIG. FIG. 6 is a schematic perspective view showing the internal structure of a track chain member according to Embodiment 2.
- FIG. 6 corresponds to a state in which the inside of the track chain member in FIG. 5 is seen through.
- 7 and 8 are schematic cross-sectional views showing the internal structure of the projecting portion of the track chain member according to the second embodiment.
- the X-axis direction corresponds to the rotation direction of the crawler belt formed by connecting the track chain members. 5 to 8, the Y-axis direction corresponds to the thickness direction of the track chain member. 5 to 8, the Z-axis direction corresponds to the width direction of the track chain member.
- FIG. 5 is a schematic perspective view showing the outer shape of the track chain member according to Embodiment 2.
- FIG. FIG. 6 is a schematic perspective view showing the internal structure of a track chain member according to Embodiment 2.
- FIG. 6 corresponds to a state
- FIG. 7 is a cross-sectional view in the XY plane. 7 is a cross-sectional view along line VII-VII in FIG. 6.
- FIG. 8 is a cross-sectional view in the YZ plane.
- FIG. 8 is a cross-sectional view along line VIII-VIII in FIG.
- the plurality of support members 60, 80 includes a third support member 80.
- third support member 80 includes first portion 81 , second portion 82 and third portion 83 .
- the first portion 81 has a rod-like shape including a fifth end portion 85 that is one end portion exposed from the base material portion 10 and a sixth end portion 86 located inside the base material portion 10 . is doing.
- the second portion 82 has a rod-like shape including a seventh end portion 87 that is one end exposed from the base material portion 10 and an eighth end portion 88 located inside the base material portion 10 . is doing.
- the third portion 83 has a rod-like shape connecting the sixth end 86 and the eighth end 88 .
- Third support member 80 contacts core 40 at third portion 83 .
- the first portion 81 and the second portion 82 are parallel.
- the third portion 83 and the first portion 81 and the second portion 82 are orthogonal.
- a region including fifth end portion 85 and a region including seventh end portion 87 are exposed from top surface 11B, which is the surface of base material portion 10 .
- the third support member 80 contacts the bottom surface 45 of the core 40 at the side surface of the third portion 83 .
- Core 40 rests on third portion 83 of third support member 80 .
- the third support member 80 has a U-shape.
- the third support member 80 may be made of the same material as the first support member 60 and the second support member 70 described above.
- the third support member 80 can perform the same functions as the second support member in the first embodiment. Therefore, the track chain member 1 of the second embodiment has the same effects as those of the first embodiment.
- the first portion 81 and the second portion 82 of the third support member 80 and the core 40 are not in contact with each other. However, at least one of the first portion 81 and the second portion 82 may contact the core 40 .
- FIG. 3 a third embodiment, which is still another embodiment, will be described with reference to FIGS. 9 to 13.
- FIG. A track chain member 1 as a wear-resistant component of the third embodiment has basically the same structure as that of the first embodiment, provides similar effects, and can be manufactured in the same manner.
- the track chain member 1 of Embodiment 3 differs from Embodiment 1 in that it includes a fourth support member 90 instead of the second support member 70 .
- the parts different from the first embodiment will be described below.
- FIG. 9 is a schematic perspective view showing the outer shape of a track chain member according to Embodiment 3.
- FIG. 10 is a schematic perspective view showing the internal structure of a track chain member according to Embodiment 3.
- FIG. 10 corresponds to a state in which the inside of the track chain member in FIG. 9 is seen through.
- 11, 12 and 13 are schematic cross-sectional views showing the internal structure of the projecting portion of the track chain member according to the third embodiment. 9 to 13, the X-axis direction, Y-axis direction and Z-axis direction mean the same directions as in the first and second embodiments.
- 11 and 13 are cross-sectional views in the XY plane.
- FIG. 12 is a cross-sectional view in the YZ plane.
- FIG. 11 is a cross-sectional view along line XI-XI of FIG. 10.
- FIG. 12 is a cross-sectional view along the line segment XII-XII in FIG. 10.
- FIG. 13 is a cross-sectional view along line segment XIII-XIII in FIG.
- the multiple support members 60, 90 include a fourth support member 90.
- the fourth support member 90 has a rod-like shape including a ninth end 91 that is one end exposed from the base material 10 and a tenth end 92 located inside the base material 10 . have.
- the area that includes the tenth end 92 is a collar 93 that has a larger cross-sectional area perpendicular to the longitudinal direction than the adjacent area.
- a linear through hole 44 is formed in the core 40 so as to penetrate from the top surface 41 to the bottom surface 45 .
- a fourth support member 90 passes through the core 40 through the through hole 44 .
- the fourth support member 90 contacts the core 40 at the collar portion 93 .
- a plurality of (here, two) through-holes 44 are formed side by side in the Z-axis direction.
- a plurality (here, two) of the fourth support members 90 are arranged corresponding to the through holes 44 .
- the fourth support member 90 has a cross-sectional area perpendicular to the longitudinal direction that decreases near the ninth end 91 as it approaches the ninth end 91 .
- the fourth support member 90 is pointed in a region including the ninth end 91 . This makes it easy to stick the ninth end 91 of the fourth support member 90 into the wall surface defining the cavity of the mold.
- the fourth support member 90 may be made of the same material as the first support member 60 and the second support member 70 described above.
- the fourth support member 90 can perform the same function as the second support member in the first embodiment. Therefore, the track chain member 1 of the third embodiment has the same effects as those of the first embodiment.
- FIG. A lug bar as a wear resistant part of the fourth embodiment has a structure in which the same configuration as that of the track chain member of the first embodiment is applied to the lug bar.
- FIG. 14 is a schematic perspective view showing the outer shape of the lug bar according to Embodiment 4.
- FIG. 15 is a schematic perspective view showing the internal structure of the lug bar according to Embodiment 4.
- FIG. 15 corresponds to a see-through state of the inside of the lug bar of FIG. 16 and 17 are schematic cross-sectional views showing the internal structure of the lug bar according to Embodiment 4.
- FIG. 14 to 17 the X-axis direction corresponds to the longitudinal direction of the lug bar. 14 to 17, the Y-axis direction corresponds to the height direction of the lug bar. 14 to 17, the Z-axis direction corresponds to the width direction of the lug bar.
- FIG. 16 is a cross-sectional view in the XY plane.
- FIG. 16 is a cross-sectional view along the line segment XVI--XVI of FIG. 15.
- lug bar 101 is used for repairing the shoe by being joined to the grouser portion when the grouser portion of the shoe constituting the crawler belt is worn.
- the lug bar 101 has a rod-like shape extending along the X-axis direction.
- the lug bar 101 has a pair of hexagonal end faces 111 and an outer peripheral face connecting the pair of end faces 111 .
- the outer peripheral surface includes a joint surface 113 , a pair of first side surfaces 115 , a pair of second side surfaces 114 and a tip surface 112 .
- the joint surface 113, the first side surface 115, the second side surface 114 and the tip surface 112 all have a rectangular shape.
- the joint surface 113 , the first side surface 115 , the second side surface 114 and the tip surface 112 are all orthogonal to the pair of end surfaces 111 .
- the lug bar 101 has a hexagonal prism shape.
- the joint surface 113 is a surface to be joined to the grouser portion when repairing the shoe.
- the first side surfaces 115 are located on both sides of the joint surface 113 in the circumferential direction of the lug bar 101 .
- the second side surface 114 is located on the side opposite to the joint surface 113 of the first side surface 115 in the circumferential direction of the lug bar 101 .
- the tip surface 112 is arranged to connect the pair of second side surfaces 114 .
- the lug bar 101 includes a base material portion 110, a core 40, and a plurality of support members 60,70.
- the base material portion 110 is made of metal as in the case of the first embodiment.
- Core 40 is embedded in base material portion 110 .
- Core 40 has higher hardness than base material portion 110 .
- Core 40 is made of the same material as in the first embodiment.
- the core 40 includes a top surface 41 , a pair of first side surfaces 42 (end surfaces), a pair of second side surfaces 43 and a bottom surface 45 .
- the top surface 41, the first side surface 42, the second side surface 43 and the bottom surface 45 all have planar shapes.
- the top surface 41 has a rectangular shape.
- a pair of first side surfaces 42 are connected to regions corresponding to a pair of opposing sides of the rectangle and are inclined (perpendicular) to the top surface 41 .
- a pair of second side surfaces 43 are connected to areas corresponding to another pair of opposite sides of the rectangle and are inclined with respect to the top surface 41 .
- the first side surface 42 and the second side surface 43 are arranged to connect the top surface 41 and the bottom surface 45 .
- the top surface 41 of the core 40 is along the tip surface 112 of the lug bar 101 .
- a pair of first side surfaces 42 (end surfaces) of the core 40 are along the pair of end surfaces 111 of the lug bar 101 .
- the pair of second side surfaces 43 of the core 40 are along the pair of second side surfaces 114 of the lug bar 101 . That is, the core 40 has a shape corresponding to part of the outer shape of the lug bar 101 .
- the plurality of support members 60 , 70 includes the first support member 60 .
- the first support member 60 has the same shape as in the case of the first embodiment.
- the first support member 60 is exposed from the surface of the base material portion 110 at the first end portion 61 .
- First support member 60 contacts core 40 at second end 62 .
- a region including first end portion 61 protrudes from the surface of base material portion 110 .
- the first support member 60 contacts the top surface 41, the first side surface 42 or the second side surface 43 of the core 40 at the second end 62, and the tip surface 112, the end surface 111 or the second side surface 114 of the lug bar 101. extending towards.
- Top surface 41 , first side 42 and second side 43 of core 40 all contact second end 62 of at least one first support member 60 .
- the plurality of support members 60, 70 includes a second support member 70.
- the second support member 70 has the same shape as in the case of the first embodiment.
- the second support member 70 is exposed from the surface of the base material portion 110 at the third end portion 71 .
- Second support member 70 contacts core 40 at side surface 73 located between third end 71 and fourth end 72 .
- a region including third end portion 71 protrudes from the surface of base material portion 110 .
- fourth end portion 72 is located inside base material portion 110 , but second support member 70 penetrates base material portion 110 so that fourth end portion 72 is positioned inside base material portion 110 . It may be exposed from the surface of the member 110 .
- the second support member 70 contacts the bottom surface 45 of the core 40 at side surfaces 73 and extends in a direction parallel to the bottom surface 45 .
- the bottom surface 45 of the core 40 is in contact with the side surfaces 73 of the plurality (eight here) of the second support members 70 .
- the lug bar 101 according to the present embodiment is a wear resistant component with improved wear resistance, like the track chain member 1 according to the first embodiment.
- the lug bar 101 according to the present embodiment can be manufactured in the same procedure as the track chain member 1 according to the first embodiment.
- FIG. 5 An example in which the present invention is applied to a side protector will be described as a fifth embodiment with reference to FIGS. 18 to 21.
- FIG. A side protector as a wear resistant part of the fifth embodiment has a structure in which the same configuration as that of the track chain member of the first embodiment is applied to the side protector.
- FIG. 18 is a schematic perspective view showing the outline of the side protector according to Embodiment 5.
- FIG. 19 is a schematic perspective view showing the internal structure of the side protector according to Embodiment 5.
- FIG. 19 corresponds to a state in which the inside of the side protector in FIG. 18 is seen through.
- 20 and 21 are schematic cross-sectional views showing the internal structure of the side protector according to the fifth embodiment.
- the X-axis direction corresponds to the longitudinal direction of the side protectors.
- the Y-axis direction corresponds to the width direction of the side protectors.
- the Z-axis direction corresponds to the height direction of the side protectors.
- FIG. 20 is a cross-sectional view in the XZ plane.
- FIG. 20 is a cross-sectional view along line XX-XX in FIG. 19.
- FIG. 21 is a cross-sectional view in the YZ plane. 21 is a cross-sectional view along line XXI-XXI in FIG. 19.
- FIG. 21 is a cross-sectional view along line XXI-XXI in FIG. 19.
- a side protector 201 includes a body portion 211 and a pair of leg portions 212 connected to the body portion 211.
- the body portion 211 has a rod-like shape extending along the X-axis direction (first direction).
- the pair of leg portions 212 are connected to both ends of the body portion 211 in the width direction (the Y-axis direction as the second direction).
- the leg portion 212 is arranged to rise from the main body portion 211 along the Z-axis direction (third direction).
- the leg portion 212 has a plate-like shape extending along the XZ plane.
- the pair of legs 212 are arranged parallel to each other.
- a pair of through-holes 213 penetrating through the leg portions 212 in the thickness direction is formed in each of the pair of leg portions 212 at intervals in the X-axis direction.
- the through holes 213 of the pair of leg portions 212 are arranged at the same position in the X-axis direction.
- the side protector 201 is a wear-resistant component that is attached to, for example, an outer edge surrounding an opening of a bucket (not shown) of a hydraulic excavator to suppress wear of the outer edge.
- the side protector 201 is attached to the bucket by inserting a fixing member such as a pin into each through-hole 213 in a state in which a plate-shaped portion constituting the outer edge of the opening of the bucket is inserted between a pair of leg portions 212 . fixed against.
- the base material portion 210 forming the surface of the side protector 201 in Embodiment 5 includes a pair of end faces 217 that are flat surfaces forming both ends of the body portion 211 in the longitudinal direction (X-axis direction).
- the base material portion 210 extends in the X-axis direction and is connected to a top surface 215 which is a flat surface connecting a pair of end surfaces 217 , and both ends of the top surface 215 in the width direction (Y direction), and is inclined with respect to the top surface 215 .
- Top surface 215 is a surface along the XY plane.
- Side 218 is a surface along the XZ plane. That is, the plane containing the top surface 215 and the plane containing the side surface 218 are orthogonal.
- the side protector 201 includes a base material portion 210, a core 40, and a plurality of support members 60,70.
- the base material portion 210 is made of metal as in the case of the first embodiment.
- the core 40 is embedded in a region of the base material portion 210 corresponding to the body portion 211 . Core 40 has higher hardness than base material portion 210 . Core 40 is made of the same material as in the first embodiment.
- the core 40 includes a top surface 41 , a pair of first side surfaces 42 (end surfaces), a pair of second side surfaces 43 and a bottom surface 45 .
- the top surface 41, the first side surface 42, the second side surface 43 and the bottom surface 45 all have planar shapes.
- the top surface 41 has a rectangular shape.
- a pair of first side surfaces 42 are connected to regions corresponding to a pair of opposing sides of the rectangle and are inclined (perpendicular) to the top surface 41 .
- a pair of second side surfaces 43 are connected to areas corresponding to another pair of opposite sides of the rectangle and are inclined with respect to the top surface 41 .
- the first side surface 42 and the second side surface 43 are arranged to connect the top surface 41 and the bottom surface 45 .
- the top surface 41 of the core 40 is along the top surface 215 of the base material portion 210 .
- the pair of second side surfaces 43 of the core 40 are along the pair of inclined surfaces 216 of the base material portion 210 . That is, the core 40 has a shape corresponding to a part of the outer shape of the body portion 211 of the side protector 201 .
- the plurality of support members 60 , 70 includes the first support member 60 .
- the first support member 60 has the same shape as in the case of the first embodiment.
- the first support member 60 is exposed from the surface of the base material portion 210 at the first end portion 61 .
- First support member 60 contacts core 40 at second end 62 .
- a region including first end portion 61 protrudes from the surface of base material portion 210 .
- the first support member 60 contacts the top surface 41 or the second side surface 43 of the core 40 at the second end 62 and extends toward the top surface 215 or the inclined surface 216 of the base material portion 210 .
- the top surface 41 and the second side surface 43 of the core 40 are in contact with the second ends 62 of at least one (here, plural) first support members 60 .
- the plurality of support members 60, 70 includes a second support member 70.
- the second support member 70 has the same shape as in the case of the first embodiment.
- the second support member 70 is exposed from the surface of the base material portion 210 at the third end portion 71 .
- Second support member 70 contacts core 40 at side surface 73 located between third end 71 and fourth end 72 .
- a region including third end portion 71 protrudes from the surface of base material portion 210 .
- fourth end portion 72 is positioned inside base material portion 210 , but second support member 70 penetrates base material portion 210 and the fourth end portion 72 is positioned inside base material portion 210 . It may be exposed from the surface of the material portion 210 .
- the second support member 70 contacts the bottom surface 45 of the core 40 at side surfaces 73 and extends in a direction parallel to the bottom surface 45 .
- the bottom surface 45 of the core 40 is in contact with the side surfaces 73 of the plurality (eight here) of the second support members 70 .
- a plurality of support members 60 and 70 define the position of the core 40 within the base material portion 210 .
- side protector 201 in the present embodiment is a wear-resistant component with improved wear resistance, like track chain member 1 in the first embodiment.
- the side protector 201 according to the present embodiment can be manufactured in the same procedure as the track chain member 1 according to the first embodiment.
- FIG. 6 An example in which the present invention is applied to a tooth will be described as a sixth embodiment with reference to FIGS. 22 to 24.
- FIG. A tooth as a wear resistant part of the sixth embodiment has a structure in which the same structure as the track chain member of the first embodiment is applied to the tooth.
- FIG. 22 is a schematic perspective view showing the outer shape of the tooth in Embodiment 6.
- FIG. FIG. 23 is a schematic perspective view showing the internal structure of the tooth according to Embodiment 6.
- FIG. 23 corresponds to a state in which the inside of the tooth in FIG. 22 is seen through.
- FIG. 24 is a schematic plan view showing the internal structure of the tooth according to Embodiment 6.
- the X-axis direction corresponds to the longitudinal direction of the teeth. 22 to 24, the Y-axis direction corresponds to the tooth thickness direction. 22 to 24, the Z-axis direction corresponds to the tooth width direction.
- base material portion 310 forming the surface of tooth 301 in the sixth embodiment includes tip 310C and base end 319.
- the base material portion 310 includes a first surface 311, a second surface 312, a third surface 313, a fourth surface 314, a fifth surface 315, a sixth surface 316, a seventh surface 317, and an eighth surface. and surface 318 .
- the first surface 311 and the second surface 312 are connected to the proximal end 319 respectively.
- the first surface 311 and the second surface 312 are spaced apart in the Y-axis direction so that the distance between them decreases as they approach the tip 310C.
- a fifth surface 315 and a sixth surface 316 connect the first surface 311 and the second surface 312 to the tip 310C, respectively.
- the fifth surface 315 and the sixth surface 316 are arranged so that the distance between them decreases as they approach the tip 310C. In the XY plane, the angle formed by the fifth surface 315 and the sixth surface 316 is larger than the angle formed by the first surface 311 and the second surface 312 .
- the third surface 313 and the fourth surface 314 are connected to the proximal end 319 respectively.
- the third surface 313 and the fourth surface 314 are spaced apart in the Z-axis direction so that the distance between them decreases as they approach the tip 310C.
- a seventh surface 317 and an eighth surface 318 connect the fourth surface 314 and the third surface 313 to the tip 310C, respectively.
- the seventh surface 317 and the eighth surface 318 are arranged so that the distance between them decreases as they approach the tip 310C. In the XZ plane, the angle formed by the seventh surface 317 and the eighth surface 318 is larger than the angle formed by the third surface 313 and the fourth surface 314 .
- the tip 310C is a surface (region) extending in the Z-axis direction.
- the proximal end 319 is formed with a concave portion 310A (recessed in the X-axis direction) toward the distal end 310C.
- a through hole 310 ⁇ /b>B is formed through the base material portion 310 from the third surface 313 to the fourth surface 314 .
- the through hole 310B intersects with the recess 310A. That is, the through hole 310B communicates with the recess 310A.
- the tooth 301 is attached, for example, to a bucket (not shown) of a hydraulic excavator. More specifically, a tooth adapter (not shown) is attached to the outer edge of the opening of the bucket of the hydraulic excavator. The distal end portion of this tooth adapter is inserted into a recess 310A formed in the proximal end 319 of the tooth 301 (base material portion 310). A pin (not shown) is inserted into the through hole 310B so as to pass through the through hole 310B. Thereby, the tooth 301 is attached to the bucket via the tooth adapter.
- the tooth 301 includes a base material portion 310, a core 340, and a plurality of support members 60,70.
- the base material portion 310 is made of metal as in the case of the first embodiment.
- Core 340 is embedded in a region corresponding to tip region 310D of base material portion 310 .
- Core 340 has higher hardness than base material portion 310 .
- Core 340 is made of the same material as in the first embodiment.
- the surface (outer shape) of the core 340 includes a first surface 341, a second surface 342, a third surface 343, a fourth surface 344, a fifth surface 345, a sixth surface 346, and a seventh surface 347. , an eighth surface 348, a ninth surface 349, and a tip 340C.
- the first surface 341 extends along the first surface 311 of the base material portion 310 .
- the second surface 342 extends along the second surface 312 of the base material portion 310 .
- the third surface 343 extends along the third surface 313 of the base material portion 310 .
- the fourth surface 344 extends along the fourth surface 314 of the base material portion 310 .
- the fifth surface 345 extends along the fifth surface 315 of the base material portion 310 .
- the sixth surface 346 extends along the sixth surface 316 of the base material portion 310 .
- the seventh surface 347 extends along the seventh surface 317 of the base material portion 310 .
- the eighth surface 348 extends along the eighth surface 318 of the base material portion 310 .
- tips follow 310 C of front-end
- the ninth surface 349 is the surface opposite to the tip 340C in the X-axis direction (the surface facing the base end 319).
- the base material portion 310 includes a tip region 310D that tapers toward the tip 310C.
- the core 340 is arranged within the distal region 310D and has a shape corresponding to the outer shape of the distal region 310D. That is, the outer shape of the core 340 is a shape that follows the outer shape of the distal end region 310D. From another point of view, the outer shape of core 340 corresponds to a shape obtained by substantially reducing the outer shape of distal end region 310D.
- the plurality of support members 60 , 70 includes the first support member 60 .
- the first support member 60 has the same shape as in the case of the first embodiment.
- the first support member 60 is exposed from the surface of the base material portion 310 at the first end portion 61 .
- First support member 60 contacts core 340 at second end 62 .
- a region including first end portion 61 protrudes from the surface of base material portion 310 .
- the first support member 60 contacts the first surface 341, the second surface 342, the fifth surface 345, or the sixth surface 346 of the core 340 at the second end 62, and the first surface of the base material portion 310, respectively. 311 , the second surface 312 , the fifth surface 315 or the sixth surface 316 .
- the first surface 341 , the second surface 342 , the fifth surface 345 and the sixth surface 346 of the core 340 each contact the second end 62 of the at least one (here, plural) first support members 60 . ing.
- the plurality of support members 60, 70 includes a second support member 70.
- the second support member 70 has the same shape as in the case of the first embodiment.
- the second support member 70 is exposed from the surface of the base material portion 310 at the third end portion 71 .
- Second support member 70 contacts core 340 at side 73 located between third end 71 and fourth end 72 .
- a region including third end portion 71 protrudes from the surface of base material portion 310 .
- fourth end portion 72 is located inside base material portion 310 , but second support member 70 penetrates base material portion 310 so that fourth end portion 72 is positioned inside base material portion 310 . It may be exposed from the surface of the material portion 310 .
- the second support member 70 contacts the seventh surface 347, the eighth surface 348 and the ninth surface 349 of the core 340 at the side surface 73 and extends in a direction parallel to these surfaces.
- a seventh surface 347 , an eighth surface 348 and a ninth surface 349 of the core 340 are in contact with the side surfaces 73 of the plurality of second support members 70 respectively.
- tooth 301 in the present embodiment is a wear-resistant component with improved wear resistance, like track chain member 1 in the first embodiment.
- the tooth 301 according to the present embodiment can be manufactured in the same procedure as the track chain member 1 according to the first embodiment.
- Embodiments 1 to 6 above track chain members, lug bars, side protectors and teeth have been described as examples of the wear resistant parts of the present disclosure, but the wear resistant parts of the present disclosure are not limited to these.
- the wear-resistant part of the present disclosure can be applied to various parts that require wear resistance by being used in applications that come into contact with earth, sand, bedrock, and the like.
- the wear-resistant parts of the present disclosure can be particularly suitably applied to parts where wear is a problem, such as tooth adapters, ripper points, teeth of concrete crushers that are attachments of hydraulic excavators, and the like.
- the corner guard (part attached to the bottom corner) and lip shroud (part attached to the bucket lip), which are parts that suppress the progress of partial wear of the bucket, also have the wear resistance of the present disclosure. parts can be applied.
- the wear resistant component of the present disclosure to the bucket component of the hydraulic excavator has been described, but the wear resistant component of the present disclosure can be similarly applied to the bucket component of the wheel loader.
- at least one end of the first support member 60, the second support member 70, the third support member 80, and the fourth support member 90 extends from the base material portion.
- the support members 60, 70, 80, 90 protrude from the base material in consideration of the function of the wear resistant parts.
- the one end portion and the surface of the base material portion may be flush with each other.
- the support members 60, 70, 80, 90 are set to protrude from the base material portion at the time of casting, and the support members 60, 70, 80, 90 are projected from the base material portion at the time of finishing.
- the processing may be performed so that the one end portion and the surface of the base material portion are flush with each other.
- 1 track chain member 10 base material portion, 10A inner surface, 10B tread surface, 10C, 10D, 10E, 10F, 10G through hole, 11 main body portion, 11A engagement portion, 11B top surface, 11C first side surface, 11D second side surface 12 first projecting portion 13 second projecting portion 14 third projecting portion 15 fourth projecting portion 16 fifth projecting portion 40 core 41 top surface 42 first side surface 43 second side surface 44 Through hole 45 Bottom surface 60 First support member 61 First end 62 Second end 70 Second support member 71 Third end 72 Fourth end 73 Side , 80 third support member, 81 first part, 82 second part, 83 third part, 85 fifth end, 86 sixth end, 87 seventh end, 88 eighth end , 90 fourth support member, 91 ninth end, 92 tenth end, 93 flange, 101 lug bar, 110 base material, 111 end surface, 112 tip surface, 113 joint surface, 114 second side surface, 115 first side surface, 201 side protector, 210 base material portion, 211 main body portion, 212 leg portion
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Abstract
Description
本開示に従った耐摩耗部品は、金属製の母材部と、母材部に埋め込まれ、母材部よりも硬度が高いコアと、少なくとも一方の端部が母材部の表面から露出し、母材部の内部に向けて延び、当該一方の端部以外の部分においてコアに接触することにより母材部内におけるコアの位置を規定する複数の支持部材と、を備える。
次に、本開示の耐摩耗部品の具体的な実施の形態の一例を、図面を参照しつつ説明する。以下の図面において同一または相当する部分には同一の参照番号を付しその説明は繰返さない。
まず、図1~図4を参照して、本開示に従った耐摩耗部品の一例である実施の形態1のトラックチェーン部材について説明する。図1は、実施の形態1におけるトラックチェーン部材の外形を示す概略斜視図である。図2は、実施の形態1におけるトラックチェーン部材の内部構造を示す概略斜視図である。図2は、図1のトラックチェーン部材の内部を透視した状態に対応する。図3および図4は、実施の形態1におけるトラックチェーン部材の突起部の内部構造を示す概略断面図である。図1~図4において、X軸方向は、トラックチェーン部材が連結されて形成される履帯の回転方向に対応する。図1~図4において、Y軸方向は、トラックチェーン部材の厚み方向に対応する。図1~図4において、Z軸方向は、トラックチェーン部材の幅方向に対応する。図3は、X-Y平面における断面図である。図3は、図2の線分III-IIIに沿う断面図である。図4は、Y-Z平面における断面図である。図4は、図2の線分IV-IVに沿う断面図である。
次に、図5~図8を参照して、他の実施の形態である実施の形態2について説明する。実施の形態2の耐摩耗部品としてのトラックチェーン部材1は、基本的には実施の形態1の場合と同様の構造を有し、同様の効果を奏するとともに、同様に製造することができる。しかし、実施の形態2のトラックチェーン部材1は、上記第2の支持部材70に代えて、第3の支持部材80を含む点において実施の形態1とは異なっている。以下、実施の形態1と異なる部分について説明する。
次に、図9~図13を参照して、さらに他の実施の形態である実施の形態3について説明する。実施の形態3の耐摩耗部品としてのトラックチェーン部材1は、基本的には実施の形態1の場合と同様の構造を有し、同様の効果を奏するとともに、同様に製造することができる。しかし、実施の形態3のトラックチェーン部材1は、上記第2の支持部材70に代えて、第4の支持部材90を含む点において実施の形態1とは異なっている。以下、実施の形態1と異なる部分について説明する。
次に、図14~図17を参照して、ラグバーに本願発明を適用した例を実施の形態4として説明する。実施の形態4の耐摩耗部品としてのラグバーは、実施の形態1のトラックチェーン部材と同様の構成をラグバーに適用した構造を有している。
次に、図18~図21を参照して、サイドプロテクタに本願発明を適用した例を実施の形態5として説明する。実施の形態5の耐摩耗部品としてのサイドプロテクタは、実施の形態1のトラックチェーン部材と同様の構成をサイドプロテクタに適用した構造を有している。
次に、図22~図24を参照して、ツースに本願発明を適用した例を実施の形態6として説明する。実施の形態6の耐摩耗部品としてのツースは、実施の形態1のトラックチェーン部材と同様の構成をツースに適用した構造を有している。
Claims (6)
- 金属製の母材部と、
前記母材部に埋め込まれ、前記母材部よりも硬度が高いコアと、
少なくとも一方の端部が前記母材部の表面から露出し、前記母材部の内部に向けて延び、前記一方の端部以外の部分において前記コアに接触することにより前記母材部内における前記コアの位置を規定する複数の支持部材と、を備える、耐摩耗部品。 - 前記複数の支持部材は、第1の支持部材を含み、
前記第1の支持部材は、前記一方の端部である第1の端部から第2の端部まで延びる棒状の形状を有し、
前記第1の端部において前記母材部の表面から露出し、前記第2の端部において前記コアに接触する、請求項1に記載の耐摩耗部品。 - 前記複数の支持部材は、第2の支持部材を含み、
前記第2の支持部材は、
前記一方の端部である第3の端部と、前記第3の端部とは反対側の端部である第4の端部と、を含む棒状の形状を有し、
少なくとも前記第3の端部において前記母材部の表面から露出し、
前記第3の端部と前記第4の端部の間に位置する側面において前記コアに接触する、請求項1または請求項2に記載の耐摩耗部品。 - 前記複数の支持部材は、第3の支持部材を含み、
前記第3の支持部材は、
前記母材部から露出する前記一方の端部である第5の端部と前記母材部の内部に位置する第6の端部とを含む棒状の第1部分と、
前記母材部から露出する第7の端部と前記母材部の内部に位置する第8の端部とを含む棒状の第2部分と、
前記第6の端部と前記第8の端部とを接続し、前記コアに接触する棒状の第3部分と、を含む、請求項1から請求項3のいずれか1項に記載の耐摩耗部品。 - 前記第1部分と前記第2部分とは平行であり、
前記第3部分と前記第1部分および前記第2部分とは直交する、請求項4に記載の耐摩耗部品。 - 前記複数の支持部材は、第4の支持部材を含み、
前記第4の支持部材は、
前記母材部から露出する前記一方の端部である第9の端部と前記母材部の内部に位置する第10の端部とを含む棒状の形状を有し、
前記第10の端部を含む領域は、長手方向に垂直な断面積が隣接する領域よりも大きい鍔部であり、
前記第4の支持部材は、前記コアを貫通し、前記鍔部において前記コアに接触する、請求項1から請求項5のいずれか1項に記載の耐摩耗部品。
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US18/281,436 US20240149963A1 (en) | 2021-03-31 | 2022-02-25 | Wear resistant component |
AU2022250961A AU2022250961A1 (en) | 2021-03-31 | 2022-02-25 | Wear-resistant component |
DE112022000578.5T DE112022000578T5 (de) | 2021-03-31 | 2022-02-25 | Verschleißfestes Bauteil |
CN202280023362.5A CN117043423A (zh) | 2021-03-31 | 2022-02-25 | 耐磨损部件 |
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JP2021061506A JP7503517B2 (ja) | 2021-03-31 | 耐摩耗部品 |
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CN (1) | CN117043423A (ja) |
AU (1) | AU2022250961A1 (ja) |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56121766U (ja) * | 1980-02-13 | 1981-09-17 | ||
JPS56138963U (ja) * | 1980-03-17 | 1981-10-21 | ||
JPH11131534A (ja) * | 1997-10-30 | 1999-05-18 | Shin Caterpillar Mitsubishi Ltd | 掘削用切刃およびその製造方法 |
JP2002144254A (ja) * | 2000-11-10 | 2002-05-21 | Toyo Kuki Seisakusho:Kk | 芯入りチゼル、及びその製造方法 |
WO2016079814A1 (ja) * | 2014-11-18 | 2016-05-26 | 株式会社小松製作所 | 機械部品およびその製造方法 |
WO2016208082A1 (ja) * | 2015-06-26 | 2016-12-29 | 株式会社小松製作所 | ラグバー、履板およびラグバーの製造方法 |
Family Cites Families (3)
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---|---|---|---|---|
JP2596106B2 (ja) | 1988-12-27 | 1997-04-02 | 住友重機械鋳鍛株式会社 | 複合掘削ツース |
JPH09192819A (ja) | 1996-01-09 | 1997-07-29 | Mitsubishi Steel Mfg Co Ltd | 耐摩耗性複合材鋳造品の製造方法 |
JP7366680B2 (ja) | 2019-10-04 | 2023-10-23 | キヤノン株式会社 | 画像処理装置、その制御方法、およびプログラム |
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- 2022-02-25 WO PCT/JP2022/007975 patent/WO2022209491A1/ja active Application Filing
- 2022-02-25 CN CN202280023362.5A patent/CN117043423A/zh active Pending
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56121766U (ja) * | 1980-02-13 | 1981-09-17 | ||
JPS56138963U (ja) * | 1980-03-17 | 1981-10-21 | ||
JPH11131534A (ja) * | 1997-10-30 | 1999-05-18 | Shin Caterpillar Mitsubishi Ltd | 掘削用切刃およびその製造方法 |
JP2002144254A (ja) * | 2000-11-10 | 2002-05-21 | Toyo Kuki Seisakusho:Kk | 芯入りチゼル、及びその製造方法 |
WO2016079814A1 (ja) * | 2014-11-18 | 2016-05-26 | 株式会社小松製作所 | 機械部品およびその製造方法 |
WO2016208082A1 (ja) * | 2015-06-26 | 2016-12-29 | 株式会社小松製作所 | ラグバー、履板およびラグバーの製造方法 |
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US20240149963A1 (en) | 2024-05-09 |
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