EP3175046A1 - Wear component for ground engaging tool - Google Patents
Wear component for ground engaging toolInfo
- Publication number
- EP3175046A1 EP3175046A1 EP15739488.3A EP15739488A EP3175046A1 EP 3175046 A1 EP3175046 A1 EP 3175046A1 EP 15739488 A EP15739488 A EP 15739488A EP 3175046 A1 EP3175046 A1 EP 3175046A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wear
- cutting edge
- component
- mounting portion
- ground engaging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 33
- 238000005520 cutting process Methods 0.000 description 154
- 238000005299 abrasion Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013070 direct material Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910003470 tongbaite Inorganic materials 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/815—Blades; Levelling or scarifying tools
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
- E02F3/815—Blades; Levelling or scarifying tools
- E02F3/8152—Attachments therefor, e.g. wear resisting parts, cutting edges
-
- 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
-
- 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
- E02F9/2858—Teeth characterised by shape
-
- 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 generally to a wear component, and more particularly, to a wear component for a ground engaging tool.
- Machines for example motor graders, dozers, wheel loaders, and excavators are commonly used in material moving applications. These machines include a ground engaging tool having a cutting edge component configured to contact the material.
- motor graders are typically used to perform displacement, distribution and leveling of material, such as rock and/or soiL
- the motor graders may move the ground engaging tool over the ground so that the cutting edge component engages with the rock and/or soil so as to displace, distribute, or level the rock and/or soiL
- the material may abrade the cutting edge component, causing it to erode away. Accordingly, the cutting edge component may be removably attached to the ground engaging tool and replaced on a periodic basis.
- Conventional cutting edge components may be formed as a single plate of constant thickness. Such conventional cutting edge components may be relatively costly to manufacture and relatively difficult to handle due to their weight.
- U.S. Patent No. 1,633,057 (the '057 patent) issued to Wold.
- the cutting edge component of the ⁇ 57 patent includes an upper portion of about one-half thickness as a lower portion
- the cutting edge component may require less material and may weigh less than the conventional cutting edge component having a single plate of constant thickness.
- the cutting edge component of the ⁇ 57 patent may still be relatively costly to manufacture and relatively difficult to handle due to its weight.
- the cutting edge component may not efficiently direct material, such as rock and/or soil, around the cutting edge component.
- the disclosed system is directed to overcoming one or more of the problems set forth above.
- the present disclosure is directed to a wear component for a ground engaging tooL
- the wear component includes a longitudinally-extending mounting portion connectable to a mounting assembly of the ground engaging tool.
- the wear component also includes at least one wear portion connected to the mounting portion.
- the at least one wear portion forms at least one ground engaging edge.
- the wear component further includes a plurality of longitudinally- spaced ribs projecting from the at least one wear portion and connecting to the mounting portion.
- the plurality of ribs are configured to affect a direction of a flow of material passing along the at least one wear portion.
- the present disclosure is directed to a wear component for a ground engaging tooL
- the wear component includes a mounting portion connectable to a mounting assembly of the ground engaging tool.
- the wear component also includes at least one wear portion connected to the mounting portion and forming at least one ground engaging edge.
- the at least one wear portion has a similar thickness along a first direction as the mounting portion and is offset along the first direction from the mounting portion.
- the wear component also includes at least one rib projecting from the at least one wear portion. The at least one rib is configured to affect a direction of a flow of material passing along the at least one wear portion.
- the present disclosure is directed to a wear component for a ground engaging tooL
- the wear component includes a mounting portion connectable to a mounting assembly of the ground engaging tool.
- the wear component also includes a plurality of wear portions spaced along a distal end of the mounting portion and connected to the mounting portion. Each wear portion forms a ground engaging edge.
- the wear component also includes a plurality of ribs projecting from the plurality of wear portions. The plurality of ribs connect to and extend distally from the mounting portion. Each rib is configured to affect a direction of a flow of material passing by the respective rib.
- Fig. 1 is a side view of a rmchine, according to an exemplary embodiment
- Fig. 2 is a front view of a cutting edge component connected to a moldboard assembly of the rmchine of Fig. 1;
- Fig. 3 is a side view of the cutting edge component and the moldboard assembly of Fig. 2;
- Fig. 4 is a perspective view of the cutting edge component of Fig.
- Fig. 5 is a front view of a cutting edge component connected to a moldboard assembly, according to another exemplary embodiment
- Fig. 6 is a side view of the cutting edge component and the moldboard assembly of Fig. 5;
- Fig. 7 is a perspective view of the cutting edge component of Fig. 5;
- Fig. 8 is a front view of a cutting edge component connected to a moldboard assembly, according to a further exemplary embodiment
- Fig. 9 is a side view of the cutting edge component and the moldboard assembly of Fig. 8;
- Fig. 10 is a perspective view of the cutting edge component of
- Fig. 11 is a front view of a cutting edge component connected to a moldboard assembly, according to yet another exemplary embodiment
- Fig. 12 is a side view of the cutting edge component and the moldboard assembly of Fig. 11;
- Fig. 13 is a perspective view of the cutting edge component of
- Fig. 14 is a bottom view of the cutting edge component of Fig.
- Fig. 15 is a front view of a cutting edge component connected to a moldboard assembly, according to yet a further exemplary embodiment
- Fig. 16 is a side view of the cutting edge component and the moldboard assembly of Fig. 15;
- Fig. 17 is a perspective view of the cutting edge component of
- Fig. 18 is a bottom view of the cutting edge component of Fig.
- the rnachine 10 may be, for example, a motor grader, a backhoe loader, an agricultural tractor, a wheel loader, a skid-steer loader, a dozer, an excavator, or any other type of machine known in the art.
- the machine 10 may include a frame assembly 12.
- the frame assembly 12 may include a pair of front wheels 14 (or other traction devices) and may support an operator station 16.
- the frame assembly 12 may also include one or more compartments 18 for housing a power source (e.g., an engine) and associated cooling components.
- the power source may be operatively coupled to one or more pairs of rear wheels 20 (or other traction devices) for propulsion of the rnachine 10.
- the machine 10 may also include one or more ground engaging tools 30.
- the ground engaging tool(s) 30 may include one or more wear components, such as one or more cutting edge components 40.
- the ground engaging tool 30 may include a plurality of the cutting edge components 40 (e.g., six cutting edge components). Alternatively, other numbers of cutting edge components 40 may be provided, such as from one to eight cutting edge components, depending on the application.
- the ground engaging tool 30 may include a drawbar- circle-mo ldboard (DCM) assembly 32 with a moldboard assembly 34 (or other mounting assembly) including a support surface 36.
- the cutting edge components 40 may be removably attached to the support surface 36.
- the DCM assembly 32 may be operatively connected to and supported by the frame assembly 12 or by another portion of the machine 10.
- the DCM assembly 32 may control the movement of the moldboard assembly 34 and therefore also the movement of the cutting edge components 40 mounted to the support surface 36 of the moldboard assembly 34.
- the DCM assembly 32 may also be supported by a hydraulic ram assembly 38 that controls the movement of the DCM assembly 32.
- the DCM assembly 32 and/or the hydraulic ram assembly 38 may control one or more of a vertical, horizontal, or pivotal movement of the moldboard assembly 34 and the cutting edge components 40 mounted to the support surface 36 of the moldboard assembly 34.
- different mechanical and/or hydraulic arrangements e.g., other than the DCM assembly 32 and/or hydraulic ram assembly 38 described above, may be provided to allow for movement of the cutting edge components 40.
- Figs. 2-4 show an exemplary embodiment of the cutting edge component 40.
- the term “longitudinal” refers to a dimension generally lengthwise with respect to the cutting edge component 40, as indicated by the arrow A in Fig. 2.
- the term “lateral” refers to a dimension generally extending between a proximal end or proximal edge 58 and a ground engaging edge 68 of the cutting edge component 40, as indicated by the arrow B in Fig. 2.
- the proximal edge 58 and the ground engaging edge 68 may extend generally longitudinally as show
- the length of the cutting edge component 40 along the longitudinal direction may range from approximately 24 inches to approximately 92 inches
- the length of the cutting edge component 40 along the lateral direction may range from approximately 8 inches to approximately 16 inches.
- the cutting edge component 40 may be approximately 48 inches longitudinally and approximately 16 inches laterally.
- distal and proximal are used herein to refer to the relative positions of the components of the exemplary cutting edge components along the lateral dimension.
- distal refers to one end of the cutting edge component 40 in the lateral dimension, e.g., positioned near the ground engaging edge 68 of the cutting edge component 40.
- proximal refers to the end of the cutting edge component 40 that is opposite the distal end in the lateral dimension, e.g., positioned near the proximal edge 58 of the cutting edge component 40.
- the cutting edge component 40 shown in Figs. 2-4 may be positioned substantially at right angles to the normal direction of travel of the cutting edge component 40, as indicated by the arrow C in Fig.
- the cutting edge component 40 may be oriented at an angle and/or curved.
- the terms “front” and “rear” are also used herein to refer to the relative positions of the components of the exemplary cutting edge components.
- “front” refers to one side of the cutting edge component 40, e.g., positioned near the forward side of the cutting edge component 40 with respect to the direction of travel of the machine 10.
- “rear” refers to the side of the cutting edge component 40 that is opposite the front side.
- the rear side of the cutting edge component 40 may be the side that is connected to or proximal to the support surface 36 of the ground engaging tool 30 to which the cutting edge component 40 is mounted.
- the cutting edge component 40 may be replaceable to help ensure productivity and/or efficiency of the machine 10.
- the cutting edge component 40 may be removably connected to the support surface 36 of the ground engaging tool 30 by way of one or more fasteners (not shown), such as bolts, inserted through one or more mounting holes 42 in the cutting edge component 40.
- the cutting edge component 40 may include one or more mounting portions 50, which may include the mounting holes 42, connected to one or more wear portions 60.
- the cutting edge component 40 shown in Figs. 2- 4 includes one mounting portion 50 including the proximal edge 58 of the cutting edge component 40 and one wear portion 60 including the ground engaging edge 68 of the cutting edge component 40.
- the mounting portion 50 may include a longitudinally-extending substantially planar portion 52 including a rear surface 54, a front surface 56, and the proximal edge 58.
- the rear surface 54 and the front surface 56 may be substantially flat, and the substantially planar portion 52 may taper toward the proximal end of the cutting edge component 40 to form the proximal edge 58.
- the substantially planar portion 52 may be connectable to the moldboard assembly 34.
- the substantially planar portion 52 may include the mounting holes 42 for receiving the fasteners (not shown) for attaching the cutting edge component 40 to the support surface 36 of the moldboard assembly 34.
- the rear surface 54 may be configured to contact and abut the support surface 36.
- the wear portion 60 may include a longitudinally-extending substantially planar portion 62 including a rear surface 64, a front surface 66, and the ground engaging edge 68.
- the rear surface 64 and the front surface 66 may be substantially flat, and the substantially planar portion 62 may taper toward the distal end of the cutting edge component 40 to form the ground engaging edge 68.
- substantially planar portion 62 of the wear portion 60 may be substantially curved or may have another type of profile. Also, as shown in Fig. 3, the substantially planar portion 52 of the mounting portion 50 and the substantially planar portion 62 of the wear portion 60 may have a similar and constant thickness Tl (e.g., between the rear surface 54 and the front surface 56, and between the rear surface 64 and the front surface 66) substantially throughout the entire substantially planar portion 52 and the entire substantially planar portion 62 (e.g., except the proximal edge 58, the ground engaging edge 68, the mounting holes 42, and/or any beveled edges). In an embodiment, the minimum of the thickness Tl may range from approximately 10 millimeters to
- the substantially planar portion 52 of the mounting portion 50 and/or the substantially planar portion 62 of the wear portion 60 may have a variable thickness, depending on the application. In an embodiment in which the substantially planar portion 52 and/or the substantially planar portion 62 of have a variable thickness, the thickness of the substantially planar portion 52 of the mounting portion 50 may not exceed the thickness of the substantially planar portion 62 of the wear portion 60.
- the mounting portion 50 and the wear portion 60 may be positioned to form a generally S-shaped profile, as shown in Fig. 3.
- the substantially planar portion 52 of the mounting portion 50 may extend generally laterally along an axis Al hying midway through the thickness of the substantially planar portion 52
- the substantially planar portion 62 of the wear portion 60 may extend generally laterally along an axis A2 hying midway through the thickness of the substantially planar portion 62.
- Axes Al and A2 may be generally parallel and/or onset depthwise, as shown in Fig. 3.
- the front surface 56 of the substantially planar portion 52 of the mounting portion 50 and the front surface 66 of the substantially planar portion 62 of the wear portion 60 may be generally parallel and/or onset depthwise. Because of the generally S-shaped profile, at least a portion of the wear portion 60 may be laterally aligned underneath the moldboard assembly 34 (e.g., the support surface 36).
- the cutting edge component 40 may also include one or more ribs 70.
- the ribs 70 may be configured to affect a direction of a flow of material passing along the wear portion 60 and may be sized proportionally to the cutting edge component 40 to support the bend in the S-shaped profile of the cutting edge component 40, which may improve the structural integrity of the cutting edge component 40.
- the cutting edge component 40 includes eight ribs 70. Alternatively, fewer or more than eight ribs 70 may be provided.
- the ribs 70 may project from the front surface 66 of the substantially planar portion 62 of the wear portion 60 and may be longitudinally-spaced. As shown in Fig.
- the ribs 70 may connect to a distal end of the mounting portion 50 and may extend distally from the mounting portion 50.
- the ribs 70 may also project from the wear portion 60 such that the ribs 70 are laterally aligned underneath at least a portion of the mounting portion 50.
- Each rib 70 may have a distal end 72 located near a middle portion of the substantially planar portion 62 of the wear portion 60 in the lateral direction. As shown in Fig. 3, each rib 70 may also have a depth Dl that tapers at the distal end 72.
- the maximum of the depth Dl may correspond to the distance between the front surface 56 of the substantially planar portion 52 of the mounting portion 50 and the front surface 66 of the substantially planar portion 62 of the wear portion 60. In an embodiment, the maximum of the depth Dl may be approximately three times the thickness Tl or less. Also, as shown in Figs. 2-4, the front surface of each rib 70 may be continuous with the front surface 56 of the substantially planar portion 52 of the mounting portion 50 and the front surface 66 of the substantially planar portion 62 of the wear portion 60.
- Figs. 5-7 show a cutting edge component 140, according to another exemplary embodiment.
- the cutting edge component 140 may be similar to the cutting edge component 40 shown in Figs. 1-4, with the differences described below.
- the cutting edge component 140 may include a plurality of wear portions or teeth 160, instead of the single wear portion 60 of Figs. 1-4.
- Each tooth 160 may have similar characteristics as the single wear portion 60 described above.
- the cutting edge component 140 includes eight teeth 160. Alternatively, fewer or more than eight teeth 160 may be provided.
- the teeth 160 may connect to and be longjtudinally-spaced along the distal end of the mounting portion 50. As shown in Fig. 5, each tooth 160 may have a width Wl that may taper from the proximal end of the tooth 160 that connects to the mounting portion 50 toward the respective ground engaging edge 68.
- Each tooth 160 may include one or more of the ribs 70, and in the exemplary embodiment shown in Figs.
- each tooth 160 includes one rib 70 extending centrally on the tooth 160 with respect to the width Wl .
- the rear surface 64 of the teeth 160 may include beveled edges.
- the ratio of the width Wl of the teeth 160 to a width of a gap between a pair of adjacent teeth 160 may be approximately 3:1 or less (e.g., the width Wl may be equal to or greater than three times the width of the gap).
- Figs. 8- 10 show a cutting edge component 240, according to another exemplary embodiment.
- the cutting edge component 240 may be similar to the cutting edge component 140 shown in Figs. 5-7, with the differences described below.
- the cutting edge component 240 may include a mounting portion 250 and a plurality of wear portions or teeth 260.
- the cutting edge component 240 includes twelve teeth 260.
- fewer or more than twelve teeth 260 may be provided.
- the teeth 260 may connect to and be longjtudinally-spaced along the distal end of the mounting portion 250.
- each tooth 260 may have a width W2 that may taper from the proximal end of the tooth 260 that connects to the mounting portion 50 toward the respective ground engaging edge 68.
- the mounting portion 250 and the teeth 260 may be similar to the mounting portion 50 and the teeth 160 described above, but may not include the ribs 70 and may have different side profiles, as shown in Fig. 9.
- the substantially planar portion 52 and the substantially planar portions 62 of the cutting edge component 140 may not have the substantially constant thickness Tl, and the cutting edge component 140 may not be generally S-shaped.
- the substantially planar portion 52 of the mounting portion 250 may have a variable thickness T2 (e.g., between the rear surface 54 and the front surface 56) that tapers from the distal end of the mounting portion 250 that connects to the teeth 260 toward the proximal edge 58
- the substantially planar portion 62 of each tooth 260 may have a variable thickness T3 (e.g., between the rear surface 64 and the front surface 66) that tapers from the proximal end of the tooth 260 that connects to the mounting portion 250 toward the ground engaging edge 68.
- thicknesses T2 and T3 may be substantially continuous such that the maximum of the thickness T2 of the substantially planar portion 52 of the mounting portion 250 may be located closer to the distal end of the mounting portion 250 (or the teeth 260) than the proximal edge 58, and the maximum of the thickness T3 of the substantially planar portion 62 of each tooth 260 may be located closer their proximal ends (or the mounting portion 250) than the ground engaging edges 68.
- the middle portion of the cutting edge component 240 in the lateral direction may be thicker than the proximal edge 58 and the ground engaging edges 68.
- the maximum of the thickness T3 of each tooth 260 may be larger than the maximum of the thickness T2 of the mounting portion 250, and an average of the thickness T3 of each tooth 260 may be larger than an average of the thickness T2 of the mounting portion 250.
- the thickness T2 of the substantially planar portion 52 of the mounting portion 250 may not exceed the thickness T3 of the substantially planar portion 62 of the teeth 260.
- the thickness T2 and/or the thickness T3 may vary within different ranges between approximately 10 millimeters to approximately 80 millimeters, depending on the application.
- the minimum of the thickness T2 may be at least approximately 35 millimeters, e.g., to maintain structural integrity, and a minimum of the thickness T3 may be at least approximately 60 millimeters, e.g., to provide a relatively longer wear life.
- the thickness T2 of the mounting portion 250 may extend both rearwardfy and forwardly with respect to the location of the proximal edge 58 as the mounting portion 250 becomes thicker toward its distal end. At least a portion of the front surface 56 of the mounting portion 250 may slope forward toward the distal end of the mounting portion 250.
- the middle portion of the cutting edge component 140 in the lateral direction may also include a step 280 .
- the step 280 may be formed by the rear surface 54 of the substantially planar portion 52 of the mounting portion 250 and a step surface 282, which may be located below the location of the lower edge of the support surface 36 of the moldboard assembly 34 when the cutting edge component 140 is mounted to the support surface 36.
- the step 280 is a right angle.
- the step surface 282 may form an acute or obtuse angle with respect to the rear surface 54.
- the step surface 282 may be located at a relatively thicker portion of the mounting portion 250 where the thickness T2 of the mounting portion 250 extends both rearwardly and forwardfy with respect to the location of the proximal edge 58.
- Figs. 11- 14 show a cutting edge component 340, according to another exemplary embodiment.
- the cutting edge component 340 may be similar to the cutting edge component 40 shown in Figs. 1-4, with the differences described below.
- the cutting edge component 340 may include a mounting portion 350 and a wear portion 360.
- the mounting portion 350 and the wear portion 360 may be similar to the mounting portion 50 and the wear portion 60 described above, but may have different side profiles, as shown in Fig. 12.
- the substantially planar portion 52 and the substantially planar portions 62 of the cutting edge component 340 may not have the substantially constant thickness Tl, and the cutting edge component 340 may not be generally S-shaped and may not include the ribs 70.
- the substantially planar portion 52 of the mounting portion 350 may have a variable thickness T4 (e.g., between the rear surface 54 and the front surface 56) that tapers from the distal end of the mounting portion 350 that connects to the wear portion 360 toward the proximal edge 58
- the substantially planar portion 62 of the wear portion 360 may have a variable thickness T5 (e.g., between the rear surface 64 and the front surface 66) that tapers from the proximal end of the substantially planar portion 62 that connects to the mounting portion 350 toward the ground engaging edge 68.
- the tapering of the thicknesses T4 and T5 may be substantially continuous such that the maximum of the thickness T4 of the substantially planar portion 52 of the mounting portion 350 may be located closer to the distal end of the mounting portion 350 (or the wear portion 360) than the proximal edge 58, and the maximum of the thickness T5 of the substantially planar portion 62 of the wear portion 360 may be located closer the proximal end of the wear portion 360 (or the mounting portion 350) than the ground engaging edge 68.
- the middle portion of the cutting edge component 340 in the lateral direction may be thicker than the proximal edge 58 and the ground engaging edge 68.
- the maximum of the thickness T5 of the wear portion 360 may be larger than the maximum of the thickness T4 of the mounting portion 350, and an average of the thickness T5 of the wear portion 360 may be larger than an average of the thickness T4 of the mounting portion 350.
- the thickness T4 of the substantially planar portion 52 of the mounting portion 350 may not exceed the thickness T5 of the substantially planar portion 62 of the wear portion 360.
- the thickness T4 and/or the thickness T5 may vary within different ranges between approximately 10 millimeters to approximately 80 millimeters, depending on the application
- the rninimum of the thickness T4 may be at least approximately 35 millimeters, e.g., to maintain structural integrity
- a rninimum of the thickness T5 may be at least approximately 60 millimeters, e.g., to provide a relatively longer wear Hfe.
- the thickness T4 of the mounting portion 350 may extend both rearwardly and forwardly with respect to the location of the proximal edge 58 as the mounting portion 350 becomes thicker toward its distal end. At least a portion of the front surface 56 of the mounting portion 350 may slope forward toward the distal end of the mounting portion 350. Also, the maximum of the thickness T5 of the wear portion 360 may be located below the location of the lower edge of the support surface 36 of the moldboard assembly 34 when the cutting edge component 140 is mounted to the support surface 36.
- the cutting edge component 340 may also include one or more grooves 390.
- the cutting edge component 340 includes twelve grooves 390. Alternatively, fewer or more than twelve grooves 390 may be provided.
- Each groove 390 may be provided in the front surface 66 of the substantially planar portion 62 of the wear portion 360. As shown in Fig. 11, each groove 390 may extend proximally from the ground engaging edge 68 toward the mounting portion 350 and may extend along a majority of a lateral length of the wear portion 360. The proximal end of each groove 390 may be located near a middle portion of the cutting edge component 340 in the lateral direction. As shown in Fig.
- each groove 390 may be generally U-shaped with a bottom surface 392 and sides 394, and may have a depth D2 that may be relatively shallow compared to the thickness T5 of the wear portion 360.
- the bottom surface 392 may be substantially parallel to the front surface 66 of the substantially planar portion 62 of the wear portion 360.
- the depth D2 may be approximately 75% of the thickness T5 (or the maximum of the thickness T5) of the wear portion 360 or less.
- the sides 394 of the grooves 390 may form edges 396 with the front surface 66 of the substantially planar portion 62 of the wear portion 360.
- the edges 396 may serve as self- sharpening teeth as wear progresses on the wear portion 360.
- the wear portion 360 may wear from the bottom (e.g., starting at the ground engaging edge 68) and then upward (proximally). As the wear portion 360 wears away proximally, unworn and sharpened portions of the edges 396 become exposed, and therefore the edges 396 may be self- sharpening.
- the grooves 390 may include a coating of abrasion resistant material.
- the bottom surface 392, the sides 394, and/or the edges 396 of the grooves 390 may be coated with the abrasion resistant material.
- the abrasion resistant material may include a carbide (e.g., tungsten carbide, titanium carbide, and/or chromium carbide) and/or a metal oxide (e.g., aluminum oxide and/or chromium oxide).
- the abrasion resistant material e.g., in particle form, may be applied to the grooves 390 by welding, plasma transfer arc deposition, and/or laser deposition.
- the coating may not fill in the grooves 390, thereby allowing the grooves 390 to maintain the profile of the bottom surface 392, sides 394, edges 396, and depth Dl .
- the coating may fill the grooves 390.
- Figs. 15-18 show a cutting edge component 440, according to another exemplary embodiment.
- the cutting edge component 440 may be similar to the cutting edge component 340 shown in Figs. 11- 14, with the differences described below.
- the cutting edge component 440 may include a plurality of wear portions or teeth 460, instead of the single wear portion 360 of Figs. 11-14.
- the cutting edge component 440 includes twelve teeth 460.
- fewer or more than twelve teeth 460 may be provided.
- the teeth 460 may connect to and be longitudinally- spaced along the distal end of the mounting portion 350.
- each tooth 460 may have a width W3 that may taper toward the respective ground engaging edge 68.
- Each tooth 460 may include one or more of the grooves 390, and in the exemplary embodiment shown in Figs. 15-18, each tooth 460 includes one groove 390 extending centrally on the tooth 460 with respect to the width W3.
- the rear surface 64 of the teeth 460 may include beveled edges.
- the teeth 460 may taper toward the rear surface 64, as shown in Fig. 18.
- the side surfaces of the teeth 460 (extending between the rear surface 64 and the front surface 66) may be at an angle ranging from
- the tapering of the teeth 460 toward the rear surface 64 may improve a cutting efficiency of the cutting edge component 440 by reducing drag forces or friction caused by the material flowing against the side surfaces of the teeth 460.
- the disclosed cutting edge components may be applicable to any machine having a ground engaging tooL Several advantages may be associated with the cutting edge components.
- the cutting edge components may exhibit improved performance and longer wear Hfe.
- the cutting edge components may penetrate and break up hard and/or frozen ground, and may direct the flow of material passing by the cutting edge component when the cutting edge components are moved horizontally and/or vertically into the ground.
- the cutting edge components 40, 140, 240, 340, and 440 may have a thickness that tapers toward the distal end of the cutting edge component 40, 140, 240, 340, and 440 to form the ground engaging edge 68, as shown in the side views of Figs. 3, 6, 9, 12, and 16. Also, the cutting edge components 140, 240, and 440 may include teeth 160, 260, and 460 that have a width (e.g., width Wl, W2, and W3) that also tapers toward the distal end of the cutting edge component 140, 240, and 440 to form the ground engaging edge 68, as shown in the front views of Figs. 5, 8, and 15.
- a width e.g., width Wl, W2, and W3
- the tapering of the width and/or thickness may form a chisel-like member at the ground engaging edge 68 for penetrating and breaking up hard and/or frozen ground, e.g., when the cutting edge components 40, 140, 240, 340, and 440 move horizontally and/or vertically into the ground.
- the cutting edge components 140, 240, and 440 may also include teeth 160, 260, and 460 that are spaced to allow the flow of material that is broken up by the ground engaging edge 68 to pass through the teeth 160, 260, and 460.
- the widths Wl, W2, and W3 and spacing of the teeth 160, 260, and 460 may be different depending on the intended function of the cutting edge component 140, 240, and 440.
- the width Wl of the teeth 160 of the cutting edge component 140 may be wider than the widths W2 and W3 of the teeth 260 and 460 of the cutting edge components 240 and 440 for structural purposes because the average thickness of the cutting edge component 140 (e.g., thickness Tl) may be less than the average thickness (e.g., thickness T2, T3, T4, and T5) of the cutting edge components 240 and 440.
- the spacing (e.g., the width of the gaps between the teeth) of the teeth 160 of the cutting edge component 140 may be wider than the spacing of the teeth 260 and 460 of the cutting edge components 240 and 440.
- the spacing may depend on the size of the particles of the material broken up by the ground engaging edge 68. Because the width Wl and/or spacing of the cutting edge component 140 may be wider than the widths W2 and W3 and/or spacing of the cutting edge components 240 and 440, the cutting edge component 140 may include eight teeth 160 while the cutting edge components 240 and 440 may include twelve teeth 260 and 460.
- the cutting edge components 40 and 140 may include the ribs 70 that are configured to adjust a direction of the flow of material that is broken up by the ground engaging edge 68.
- the flow of material may be directed by the ribs 70 along the wear portion 60 or the teeth 160, over the mounting portion 50, and onto the moldboard assembly 34 where the material may be redirected and cast off to the side of the rnachine 10.
- the ribs 70 may also support the bend in the S-shaped profile of the cutting edge component 40, which may improve the structural integrity of the cutting edge component 40 and make the cutting edge component 40 stronger.
- the cutting edge components 340 and 440 may include the grooves 390 that include the self- sharpening edges 396 that may assist in penetrating and breaking up hard and/or frozen ground, which may help to reduce the penetration forces required by the cutting edge components 340 and 440.
- the grooves 390 may also include the coating of abrasion resistant material, which may increase wear Hfe. Thus, the grooves 390 may serve as a location for depositing abrasion resistant material without the need for additional rmchining.
- the cutting edge component 240 may also include the grooves 390 and/or the coating of abrasion resistant material.
- the thickness T4 of the mounting portions 250 and 350 of the cutting edge components 240 and 340 may extend both rearwardly and forwardly, e.g., with respect to the location of the proximal edge 58, as the mounting portions 250 and 350 become thicker toward the distal end, and at least a portion of the front surface 56 of the mounting portions 250 and 350 may slope forward toward the distal end of the mounting portions 250 and 350.
- the flow of material that is broken up by the ground engaging edge 68 may be directed over the front surface 56 of the mounting portions 250 and 350 and onto the moldboard assembly 34 where the material may be redirected and cast off to the side of the machine 10.
- the cutting edge components 40, 140, 240, 340, and 440 may also be configured for optimal placement of the material used to form the cutting edge components 40, 140, 240, 340, and 440 to reduce weight, cost, and the amount ofthrowaway material at the end of life of the cutting edge components 40, 140, 240, 340, and 440.
- Providing the maximum thickness near the middle portion of the cutting edge components 40, 140, 240, 340, and 440 in the lateral direction may result in a relatively longer wear Hfe.
- the maximum thickness may be provided below the location of the lower edge of the support surface 36 of the moldboard assembly 34 when the cutting edge component 40, 140, 240, 340, and 440 is mounted to the support surface 36. As shown in the side views of Figs.
- the mounting portions 50, 250, and 350 may have a smaller thickness (e.g., thickness Tl, T2, or T4) compared to the maximum thickness of the cutting edge components 40, 140, 240, 340, and 440.
- the substantially planar portion 52 of the mounting portion 50, 250, and 350 may taper toward the proximal end of the components 40, 140, 240, 340, and 440 to form the proximal edge 58.
- the substantially planar portion 52 of the mounting portion 250 and 350 may have a variable thickness (e.g., thickness T2 or T4) that tapers substantially continuously from the distal end toward the proximal edge 58.
- the 460 may also have a smaller thickness (e.g., thickness Tl, T3, or T5) compared to the maximum thickness of the cutting edge components 40, 140, 240, 340, and 440.
- the substantially planar portion 62 of the wear portions 60 and 360 or teeth 160, 260, and 460 may taper toward the distal end of the components 40, 140, 240, 340, and 440 to form the ground engaging edge(s) 68.
- the substantially planar portion 62 of the wear portion 360 and teeth 260 and 460 may have a variable thickness (e.g., thickness T3 or T5) that tapers substantially continuously from the proximal end toward the ground engaging edge 68.
- the cutting edge components 40, 140, 240, 340, and 440 may have a relatively lower weight, which may make them easier to handle.
- the cutting edge components 40, 140, 240, 340, and 440 may be formed of cast steel which may reduce the time and cost for manufacturing the cutting edge components 40, 140, 240, 340, and 440 described above and shown in Figs. 2-18, e.g., compared to rolled steeL
- the cutting edge components 40, 140, 240, 340, and 440 including the features described above, such as the mounting portions 50, 250, and 350, the wear portions 60 and 360, the teeth 160, 260, and 460, and/or the ribs 70 may be formed as a single integral and/or continuous part. It will be apparent to those skilled in the art that various modifications and variations can be made to the disclosed cutting edge components. Other embodiments will be apparent to those skilled in the art from consideration of the specification and practice of the disclosed cutting edge components. It is intended that the specification and examples be considered as exemplary only, with a true scope being indicated by the following claims and their equivalents.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
- Elimination Of Static Electricity (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/445,845 US20160032556A1 (en) | 2014-07-29 | 2014-07-29 | Wear component for ground engaging tool |
PCT/US2015/039978 WO2016018588A1 (en) | 2014-07-29 | 2015-07-10 | Wear component for ground engaging tool |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3175046A1 true EP3175046A1 (en) | 2017-06-07 |
Family
ID=53682895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15739488.3A Withdrawn EP3175046A1 (en) | 2014-07-29 | 2015-07-10 | Wear component for ground engaging tool |
Country Status (8)
Country | Link |
---|---|
US (1) | US20160032556A1 (zh) |
EP (1) | EP3175046A1 (zh) |
CN (1) | CN106661861B (zh) |
AU (1) | AU2015296952B2 (zh) |
BR (1) | BR112017001216B1 (zh) |
CA (1) | CA2956083C (zh) |
RU (1) | RU2688999C1 (zh) |
WO (1) | WO2016018588A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108301374A (zh) * | 2018-03-30 | 2018-07-20 | 浙江华莎驰机械有限公司 | 一种扫雪机和平地机刀座结构 |
JP7233648B2 (ja) * | 2019-03-28 | 2023-03-07 | 株式会社小松製作所 | 作業機械用カッティングエッジ、作業機械用ブレードおよび作業機械 |
US11499298B2 (en) * | 2020-04-29 | 2022-11-15 | Caterpillar Inc. | Corner segment having protrusions on wear zones |
US11882777B2 (en) | 2020-07-21 | 2024-01-30 | Osmundson Mfg. Co. | Agricultural sweep with wear resistant coating |
US12031304B2 (en) * | 2021-05-20 | 2024-07-09 | Caterpillar Inc. | Cast top cover for base edge wear protection |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1633057A (en) * | 1926-07-15 | 1927-06-21 | Carl O Wold | Cutting section for road-scraper blades |
US1937243A (en) * | 1932-02-11 | 1933-11-28 | Penco Steel Corp | Detachable road scraper blade |
US2285039A (en) * | 1940-02-19 | 1942-06-02 | Arnold W Edwards | Blade for earth excavating and handling machines |
US2866280A (en) * | 1957-01-22 | 1958-12-30 | O'connor George Kevin | Scraper blade for dozer attachments |
US2887797A (en) * | 1957-01-22 | 1959-05-26 | O'connor George Kevin | Scraper blade for road graders |
US3192653A (en) * | 1957-03-29 | 1965-07-06 | Shunk Mfg Company | Blade with a plurality of wedge shaped teeth angularly disposed to said blade |
US3021626A (en) * | 1958-01-21 | 1962-02-20 | Esco Corp | Scraper blade |
US2965989A (en) * | 1958-05-23 | 1960-12-27 | Myrthan R Hibbard | End bits for blades |
US3103752A (en) * | 1961-04-10 | 1963-09-17 | Allis Chalmers Mfg Co | Cutting blade for excavator |
US3289331A (en) * | 1964-04-15 | 1966-12-06 | Willie E Freeman | End bit for earthmoving equipment |
US3653133A (en) * | 1969-05-26 | 1972-04-04 | Caterpillar Tractor Co | Replaceable cutting edge and tooth for earthmoving machines |
US4052802A (en) * | 1976-02-23 | 1977-10-11 | Caterpillar Tractor Co. | Ground-engaging tool with wear-resistant insert |
US4651450A (en) * | 1984-04-11 | 1987-03-24 | Fallline Corporation | Packer bar assembly |
US5224555A (en) * | 1991-12-18 | 1993-07-06 | Bucyrus Blades, Inc. | Wear element for a scraping operation |
US6412199B1 (en) * | 2000-10-12 | 2002-07-02 | Blizzard Corporation | Adjustable wing plow with fixed pivot |
US7891121B2 (en) * | 2007-06-19 | 2011-02-22 | Doug Smoljo | Earthworking implement |
CA2612341A1 (en) * | 2007-11-27 | 2009-05-27 | Black Cat Blades Ltd. | Ground engaging tool blade |
SE533207C2 (sv) * | 2007-12-21 | 2010-07-20 | Atlas Copco Rock Drills Ab | Slitdel till en skopa för en last-eller grävmaskin,fästenhet där för jämte slitdelssystem, skopa och last-eller grävmaskin |
CN102296653B (zh) * | 2011-05-24 | 2014-07-23 | 天津柳工机械有限公司 | 具有浅地层耧耙功能的推土机铲刀总成 |
CN202247988U (zh) * | 2011-09-05 | 2012-05-30 | 中联重科股份有限公司 | 铲刀刀片和推土机 |
-
2014
- 2014-07-29 US US14/445,845 patent/US20160032556A1/en not_active Abandoned
-
2015
- 2015-07-10 AU AU2015296952A patent/AU2015296952B2/en not_active Ceased
- 2015-07-10 RU RU2017104542A patent/RU2688999C1/ru active
- 2015-07-10 WO PCT/US2015/039978 patent/WO2016018588A1/en active Application Filing
- 2015-07-10 EP EP15739488.3A patent/EP3175046A1/en not_active Withdrawn
- 2015-07-10 CN CN201580040107.1A patent/CN106661861B/zh not_active Expired - Fee Related
- 2015-07-10 BR BR112017001216-2A patent/BR112017001216B1/pt not_active IP Right Cessation
- 2015-07-10 CA CA2956083A patent/CA2956083C/en active Active
Also Published As
Publication number | Publication date |
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RU2688999C1 (ru) | 2019-05-23 |
WO2016018588A1 (en) | 2016-02-04 |
AU2015296952A1 (en) | 2017-02-23 |
BR112017001216B1 (pt) | 2022-07-05 |
CA2956083C (en) | 2022-10-04 |
CA2956083A1 (en) | 2016-02-04 |
CN106661861A (zh) | 2017-05-10 |
US20160032556A1 (en) | 2016-02-04 |
CN106661861B (zh) | 2020-03-27 |
AU2015296952B2 (en) | 2019-08-08 |
BR112017001216A2 (pt) | 2017-11-28 |
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