Wear member and wear assembly

Abstract

A first wear member, such as a wear cap, intermediate mount, mount, or wing shield, for covering at least a portion of a base of an earth working device has a front portion, a rear portion, an outer surface, and opposing inner surfaces. The first wear member includes at least one retention feature, such as an engagement tab or recess located at the front portion. In one example, the engagement tab has a top bearing surface and a bottom bearing surface, the top bearing surface corresponding to a bearing surface on a second wear member, and the bottom bearing surface corresponding to a bearing surface on the base for bearing against during load bearing use of the earth working device.

Description

Related applications

[0001] This application claims priority to U.S. Provisional Patent Application No. 63 / 572,050, filed March 29, 2024, entitled “Wear Member and Wear Assembly,” which is incorporated herein by reference in its entirety. Technical Field

[0002] This disclosure relates to wear-resistant components for earthmoving equipment, and in particular, to the use of wear caps to protect easily worn surfaces. Background Technology

[0003] During normal use, mining, dredging, construction, and similar equipment are subjected to conditions that cause significant wear on components. To prevent damage caused by such conditions, wear-resistant parts are fixed to the worn surfaces, and the underlying parts or equipment are replaced instead of the wear-resistant parts.

[0004] Wear-resistant parts are typically attached along the front edge of earthmoving equipment, such as buckets, dredger cutterheads, and drums, to protect the equipment from wear and extend its service life. Wear-resistant parts can include teeth, guard plates, adapters, wing guards, picks, and wear caps. Summary of the Invention

[0005] The present invention relates to wear-resistant components for earthmoving equipment, the wear-resistant components being mechanically fixed to the equipment.

[0006] In one example, a wear-resistant assembly for earthmoving equipment includes a support base having a boss projecting outward from the base, the boss including retaining features defining a locking support surface. The wear-resistant assembly further includes a wear-resistant cap having a front portion, a rear portion, an outer surface, and an inner surface; and a closed boss receiving cavity located in the rear portion, extending generally from the inner surface toward the outer surface, and arranged to receive the boss when the wear-resistant cap covers a portion of the support base. The wear-resistant cap also includes a locking cavity located in the rear portion of the wear-resistant cap, extending from the outer surface and communicating with the boss receiving cavity. The wear-resistant assembly includes a locking member received within the locking cavity and for engaging the locking support surface to secure the wear-resistant cap to the support base.

[0007] In another example, a wear-resistant assembly for earthmoving equipment includes a support base having a boss projecting outward from the base, the boss including a locking cavity defining a first locking support surface. The wear-resistant assembly further includes: a wear-resistant cap having a front portion, a rear portion, an outer surface, and an inner surface, the rear portion being arranged to engage the boss when the wear-resistant cap covers a portion of the support base; and a second locking support surface located at the rear portion of the wear-resistant cap. Finally, the wear-resistant assembly includes a locking member received within the locking cavity to engage the first and second locking support surfaces, thereby securing the wear-resistant cap to the support base.

[0008] The retaining feature may be in the form of a locking receiving hole. The locking receiving cavity and the locking receiving hole may be tilted forward, wherein the locking cavity extends through the front inner surface of the boss receiving cavity. Alternatively, the locking receiving cavity and the locking receiving hole may be tilted rearward, wherein the locking cavity extends through the rear inner surface of the boss receiving cavity. Additionally, alternatively, the locking cavity extends axially through at least the rear inner surface of the boss receiving cavity, wherein the locking receiving hole extends at least partially through the rear of the boss. Alternatively, alternatively, the locking cavity extends laterally through at least the side inner surface of the boss receiving cavity, wherein the locking receiving hole extends at least partially through the side of the boss.

[0009] Alternatively, the retaining feature may be in the form of a protrusion having an outer surface that defines the locking support surface.

[0010] The boss receiving cavity may include an inner surface that presses against a corresponding outer surface of the boss. Alternatively or additionally, the inner surface of the wear-resistant cap may include a vertical bearing surface located at the front and / or rear, which presses against a corresponding surface of the base.

[0011] The abrasion cap may additionally include a flange extending forward from the front portion. The flange may be centrally located, or may include first and second flanges located on opposite sides of the front portion.

[0012] The wear-resistant assembly may further include a wear-resistant member located in front of the wear-resistant cap, the wear-resistant member having a rear portion with a rearward mounting cavity arranged to receive the nose end of the base. The wear-resistant member may include a recess located in the rear portion, through which the flange can be inserted into the recess and pivoted downward to mount on the support base.

[0013] In another example, a wear-resistant cap for covering at least a portion of the base of earthmoving equipment includes a front portion, a rear portion, an outer surface, and an opposing inner surface. The wear-resistant cap further includes: a closed boss receiving cavity located in the rear portion and extending generally from the inner surface toward the outer surface; and a locking cavity located in the rear portion, extending from the outer surface, and communicating with the boss receiving cavity. The locking cavity is arranged to receive a locking member for securing the wear-resistant cap to the base.

[0014] The locking receiving cavity may be tilted forward, wherein the locking cavity extends through the front inner surface of the boss receiving cavity. Alternatively, the locking receiving cavity may be tilted rearward, wherein the locking cavity extends through the rear inner surface of the boss receiving cavity. Additionally, alternatively, the locking cavity extends axially through at least the rear inner surface of the boss receiving cavity. Additionally, alternatively, the locking cavity extends laterally through at least the side inner surface of the boss receiving cavity.

[0015] In yet another example, a first wear-resistant member for covering at least a portion of the base of an earthmoving equipment includes a front portion, a rear portion, an outer surface, and opposing inner surfaces. The first wear-resistant member further includes at least one engaging tab located at the front portion, the at least one engaging tab having a top support surface and a bottom support surface, the top support surface corresponding to a support surface on a second wear-resistant member, and the bottom support surface corresponding to a support surface on the base, for bearing support during the load-bearing use of the earthmoving equipment.

[0016] In another example, a wear-resistant cap for covering at least a portion of the base of earthmoving equipment includes a front portion, a rear portion, an outer surface, and opposing inner surfaces. The wear-resistant cap further includes: a central section extending between the front and rear portions; two wings extending laterally downward from opposite sides of the central section; and a closed boss receiving cavity located in the rear portion of the central section and extending generally from the inner surface toward the outer surface. The wear-resistant cap also includes a locking cavity located at the rear of the wear-resistant cap, extending from the outer surface and communicating with the boss receiving cavity.

[0017] In another example, a wear-resistant cap for covering at least a portion of the base of an earthmoving equipment includes a front, a rear, an outer surface, and an opposing inner surface. The wear-resistant cap further includes: a closed boss receiving cavity located in the rear of the central section and opening toward the rear and the outer surface; and an engaging tab located at the front.

[0018] In yet another example, a wear-resistant cap for covering at least a portion of the base of earthmoving equipment includes a front portion, a rear portion, an outer surface, and opposing inner surfaces. A boss receiving cavity is located in the rear portion and opens toward the rear portion and the outer surface, and an engaging tab is located at the front portion.

[0019] In another example, a wear-resistant cap for covering at least a portion of the base of an earthmoving equipment includes a front, a rear, an outer surface, and an opposing inner surface. The wear-resistant cap further includes: a closed boss receiving cavity located in the rear of the central section and extending generally from the inner surface toward the outer surface; and a flange located at the front.

[0020] In another example, a wear-resistant assembly for earthmoving equipment includes a support base having a boss projecting outward from the base. The wear-resistant assembly further includes a wear-resistant cap having a front, a rear, an outer surface, and an inner surface. The wear-resistant cap has: a closed boss receiving cavity located in the rear portion, extending generally from the inner surface toward the outer surface, and arranged to receive the boss when the wear-resistant cap covers a portion of the support base; and an engaging tab extending from the front portion. The wear-resistant assembly also includes a locking member arranged between the wear-resistant cap and the boss to secure the wear-resistant cap to the support base. The wear-resistant assembly further includes a wear-resistant member located in front of the wear-resistant cap. The wear-resistant member has a rear portion with a rearward mounting cavity arranged to receive the nose end of the base, wherein the engaging tab is inserted through the rear portion of the wear-resistant member and pivots downward to be mounted onto the support base.

[0021] In another example, a wear-resistant assembly for earthmoving equipment includes a support base having a boss projecting outward from the base, the boss including a front wall having a forward-projecting member with a lower surface. The wear-resistant assembly further includes a wear-resistant cap having: a front portion, a rear portion, an outer surface, and an inner surface; a boss receiving cavity located in the rear portion and opening toward the outer surface and the rear wall, the boss receiving cavity being arranged to receive the forward-projecting member of the boss when the wear-resistant cap covers a portion of the support base; and an engaging tab extending outward from the front portion of the wear-resistant cap. The wear-resistant assembly finally includes a mounting seat located in front of the wear-resistant cap and having a recess for receiving the engaging tab of the wear-resistant cap, such that when the support base, the wear-resistant cap, and the mounting seat are all mounted on the earthmoving equipment, the wear-resistant cap is held between the support base and the mounting seat.

[0022] In another example, a wear-resistant assembly for earthmoving equipment includes a support base having a boss projecting outward from the base. The boss includes a first retaining feature located on its forward face. A first wear-resistant member has: a front portion, a rear portion, an outer surface, and an inner surface; a second retaining feature located on the rear wall of the rear portion, the second retaining feature being arranged to receive the first retaining feature of the boss when the first wear-resistant member covers a portion of the support base; and a third retaining feature located on the front portion of the first wear-resistant member. A second wear-resistant member is located in front of the first wear-resistant member and has a fourth retaining member for securing together with the third retaining feature of the first wear-resistant member, such that when the support base, the first wear-resistant member, and the second wear-resistant member are all mounted on the earthmoving equipment, the first wear-resistant member is held between the support base and the second wear-resistant member.

[0023] In another example, a base for earthmoving equipment includes a mounting portion for mounting a wear-resistant cap thereon, the mounting portion having a boss projecting outward from the base, the boss including an inclined locking support surface.

[0024] In another example, a base for earthmoving equipment includes a mounting portion for mounting a wear-resistant cap thereon. The mounting portion includes a boss projecting outward from the base. The boss includes a forward surface with forward protruding members, wherein the forward protruding members include a bottom support surface corresponding to a support surface on the wear-resistant cap and two support surfaces.

[0025] In another example, a base for earthmoving equipment includes a mounting portion for mounting a wear-resistant cap thereon, the mounting portion having a boss projecting outward from the base, the boss including a locking receiving hole that extends at least partially laterally or axially through the boss and defines a locking support surface.

[0026] In another example, a base for earthmoving equipment includes a mounting portion for mounting a wear-resistant cap thereon, the mounting portion having a boss projecting outward from the base, the boss including a retaining feature that projectes laterally or axially from the boss and defines a locking support surface.

[0027] In another example, a bucket lip for attachment to a bucket includes a plurality of noses for engaging with a plurality of corresponding wear-resistant components, each nose having two support surfaces on opposite sides to engage with a front protrusion of a wear-resistant component.

[0028] In another example, a bucket lip for attachment to a bucket includes a plurality of noses for engaging with a plurality of corresponding wear-resistant components, with at least two support surfaces on opposite sides of each nose, the at least two support surfaces corresponding to the lower surfaces of two engagement tabs of the wear-resistant components, such that when the wear-resistant components are installed, the lower surfaces of the two engagement tabs and the at least two support surfaces of the bucket lip press against each other during bucket operation.

[0029] In another example, a wear-resistant member includes a front end and a rear end, the rear end having a mounting cavity that opens in the rear end of the wear-resistant member to receive a support base. The mounting cavity has a front portion and a rear portion, the rear portion including two rear support surfaces located on a top surface of the mounting cavity. The two rear support surfaces converge toward or diverge away from a central portion of the top surface, wherein the two rear support surfaces press against a complementary surface on the support base. The two rear support surfaces include recesses that open toward the mounting cavity and the rear end for engaging two protrusions of a second wear-resistant member.

[0030] In another example, a first wear-resistant member includes a front end and a rear end, the rear end having a mounting cavity that opens in the rear end of the first wear-resistant member to receive a support base. The mounting cavity has a front portion and a rear portion, the rear portion including two rear support surfaces located on the top surface of the mounting cavity, the two rear support surfaces converging toward each other or diverging away from each other, wherein the two rear support surfaces press against a complementary surface on the support base. The two rear support surfaces include recesses that open toward the mounting cavity and the rear end for engaging with two engaging tab supports of a second wear-resistant member during horizontal and / or vertical loads.

[0031] In yet another example, a first wear-resistant member includes a front end and a rear end, the rear end having a mounting cavity that opens in the rear end of the first wear-resistant member to receive a support base. The mounting cavity has a front portion and a rear portion, the rear portion including a rear support surface located on a top surface of the mounting cavity, wherein the rear support surface presses against a complementary surface on the support base. The rear support surface includes a recess that opens toward the rear end for engagement with an engagement tab support of a second wear-resistant member during horizontal and / or vertical loads.

[0032] In another example, a wear-resistant member for mounting on a base defines a longitudinal axis along its centerline, an outer wear surface, an opposing inner surface, and a closed boss receiving cavity located in the rear portion of the wear-resistant member and extending substantially from the inner surface toward the outer wear surface. The wear-resistant member further has a locking cavity extending into the boss receiving cavity in a direction substantially transverse to the longitudinal axis. In this document, "substantially transverse" does not imply a precise ninety-degree orientation relative to the longitudinal axis, but rather encompasses all directions extending across the longitudinal axis at any corresponding angle that is not substantially parallel.

[0033] In another example, a wear-resistant member for mounting on a base defines a longitudinal axis along its centerline, an outer wear surface, an opposing inner surface, and a closed boss receiving cavity located in the rear portion of the wear-resistant member and extending substantially from the inner surface toward the outer wear surface. The wear-resistant member further has a locking cavity that extends substantially longitudinally into the boss receiving cavity.

[0034] In the example, a wear-resistant member has a closed boss receiving cavity in its rear portion. The wear-resistant member includes an inclined locking cavity. The wear-resistant member has an outer wear surface and opposing inner surfaces. The boss receiving cavity extends substantially from the opposing inner surfaces toward the outer wear surface. The inclined locking cavity extends from the outer wear surface toward the boss receiving cavity. The boss receiving cavity has an internal surface. The internal surface of the boss receiving cavity includes axial, transverse, and / or vertical bearing surfaces.

[0035] In one example, a wear-resistant member for mounting on a base has an outer wear surface, an opposing inner surface, and a front wall extending at the front end of the wear-resistant member between the outer wear surface and the opposing inner surface, the front wall including two wing-like projections on its sides. The wear-resistant member further includes an inclined locking cavity for receiving a lock to secure the wear-resistant member to the base. The lock receiving cavity is inclined forward. Alternatively, the lock cavity is inclined rearward.

[0036] In another example, a base includes a nose tip having an outer surface having a plurality of front support surfaces formed generally along the distal end of the nose tip and a plurality of rear support surfaces formed in the proximal end of the nose tip opposite the distal end. The nose tip includes a recessed area on its top surface to receive at least a portion of a wear-resistant member that covers a portion of the base rearward from the base. The recessed area is located near the distal end of the nose tip.

[0037] In another example, a wear-resistant cap includes a front pivot flange, a rear boss receiving cavity for receiving a boss, and a locking cavity. The wear-resistant cap includes an outer wear surface and opposing inner surfaces. The front pivot flange and the rear boss receiving cavity are axially aligned and protrude below the opposing inner surfaces of the wear-resistant cap.

[0038] In yet another example, the lip of an earthmoving device includes an integral nose. The nose defines a longitudinal axis along a centerline extending in the direction of travel of the earthmoving device. The lip includes a boss having a retaining feature extending substantially transversely to the longitudinal axis. The retaining feature may be in the form of a locking receiving hole including an inner surface defining a locking support surface. Alternatively, the retaining feature may be in the form of a protrusion projecting outward from the boss and having an outer surface defining the locking support surface. In this document, "substantially transverse" does not imply a precise ninety-degree orientation relative to the longitudinal axis, but rather includes all directions extending across the longitudinal axis at any corresponding angle that is not substantially parallel.

[0039] Referring to the accompanying drawings, these and other aspects will become apparent from the specific descriptions given below, which are given by way of example only. Attached Figure Description

[0040] Figure 1 This is a top perspective view of a bucket lip having multiple wear-resistant assemblies according to the present disclosure.

[0041] Figure 2 This is an upper perspective view of a wear-resistant assembly mounted on the nose according to an example of this disclosure.

[0042] Figure 3 yes Figure 2 Cross-sectional view of the wear-resistant assembly.

[0043] Figure 4 yes Figure 2 Exploded view of the wear-resistant assembly.

[0044] Figure 5 From Figure 2 The lower perspective view of the front of the wear-resistant assembly, i.e., the lower perspective view of the wear-resistant cap.

[0045] Figure 6 yes Figure 5 The lower perspective view of the wear-resistant cap.

[0046] Figure 7 yes Figure 2 Rear perspective view of a portion of the wear-resistant assembly, i.e., rear perspective view of the mounting base.

[0047] Figure 8 This is an exploded upper perspective view of a second wear-resistant assembly according to another example of this disclosure.

[0048] Figure 9 yes Figure 8 A cross-sectional view of a portion of the second wear-resistant assembly.

[0049] Figure 10 yes Figure 8 Rear perspective view of a portion of the second wear-resistant assembly, specifically the rear perspective view of the boss.

[0050] Figure 11 yes Figure 8 The lower perspective view of a part of the second wear-resistant assembly, namely the lower perspective view of the wear-resistant cap.

[0051] Figure 12 yes Figure 8 Rear perspective view of a portion of the second wear-resistant assembly, i.e., rear perspective view of the mounting base.

[0052] Figure 13 This is an exploded top perspective view of a third wear-resistant assembly according to another example of this disclosure.

[0053] Figure 14 yes Figure 13 The lower perspective view of a part of the third wear-resistant assembly, namely the lower perspective view of the wear-resistant cap.

[0054] Figure 15 yes Figure 13 A cross-sectional view of a portion of the third wear-resistant assembly.

[0055] Figure 16 This is an exploded top perspective view of a fourth wear-resistant assembly according to another example of this disclosure.

[0056] Figure 17 yes Figure 16 The lower perspective view of a part of the fourth wear-resistant assembly, namely the lower perspective view of the wear-resistant cap.

[0057] Figure 18 This is an upper perspective view of a bucket lip having multiple wear-resistant assemblies, according to an example of this disclosure.

[0058] Figure 19 yes Figure 18 Exploded view of the fifth wear-resistant assembly.

[0059] Figure 20 yes Figure 18 The lower perspective view of the wear cap of the fifth wear-resistant assembly.

[0060] Figure 21 yes Figure 18 Rear perspective view of a portion of the wear cap of the fifth wear-resistant assembly.

[0061] Figure 22 yes Figure 18 A front perspective view of a portion of the wear cap of the fifth wear-resistant assembly.

[0062] Figure 23 yes Figure 18 A cross-sectional view of a portion of the fifth wear-resistant assembly taken along line 23-23.

[0063] Figure 24 yes Figure 18 A cross-sectional view of a portion of the fifth wear-resistant assembly taken along line 24-24.

[0064] Figure 25 yes Figure 18 The upper perspective view of the lip and boss, in which some parts of the lip have been removed.

[0065] Figure 26 yes Figure 18 The lower perspective view of the boss.

[0066] Figure 27 yes Figure 18 The rear perspective view of the first wear-resistant component of the fifth wear-resistant assembly, i.e., the rear perspective view of the intermediate mounting base.

[0067] Figure 28 yes Figure 18 The lower perspective view of the wing guard plate of the fifth wear-resistant assembly.

[0068] Figure 29 yes Figure 18 The upper perspective view of the wing guard plate of the fifth wear-resistant assembly. Detailed Implementation

[0069] Abrasion caps typically have opposing tracks that are received into grooves on opposite sides of the base to be protected. Other arrangements, such as a dovetail joint between the abrasion cap and the base, are also used to prevent the abrasion cap from being pulled away from the base. In these arrangements, the abrasion cap can be held in place by the mounting bracket when it is mounted on the nose. The mounting bracket prevents the abrasion cap from being removed from the base in a retaining manner. Therefore, the abrasion cap can only be removed by first removing the mounting bracket from the nose.

[0070] exist Figure 1-2 The diagram illustrates an example of a wear-resistant assembly 10 or bucket teeth mounted on a base. The wear-resistant assembly 10 can be mounted on a base in the form of a bucket lip 12 of an earthmoving equipment, the bucket lip having an integral nose 14 and a boss 16 fixed to the bucket lip 12 and located behind the integral nose 14. The bucket lip and base 12 are interchangeable throughout the disclosure, but it should be understood that the base can also be a separately fixed mounting. The wear-resistant assembly 10 includes a first wear-resistant member 18 in the form of an intermediate mounting (hereinafter referred to as "mount") having a rear cavity 19 extending from the rear wall 20 and defining an inner surface 22. Figure 7 and 12 The intermediate mounting 18 is used to mount the intermediate mounting 18 to the integral nose 14. The intermediate mounting 18 also has a nose (not shown) extending from the front, to which a second wear-resistant member 24, in the form of a tooth or tip, is secured. In some examples, the intermediate mounting 18 may be a tooth, used to combine the intermediate mounting with the tip in a single-piece configuration. The wear-resistant assembly 10 further includes a third wear-resistant member 26, which is in the form of a wear-resistant cap and covers a portion of the lip 12 in use; in the illustrated example, this portion is located behind the integral nose 14, but other configurations are possible. The intermediate mounting 18 is secured to the integral nose 14 by a latch 30, but other configurations are possible. The tooth 24 is then secured to the intermediate mounting 18 by a latch 30'. However, other configurations are possible; for example, the intermediate mounting 18 may be secured to the integral nose by welding, bolts, fasteners, one or more latches of another type (not shown).

[0071] refer to Figure 2-6 The diagram shows a first example of an abrasion cap 26. The abrasion cap 26 includes a rear portion 28, a front portion 29, an outer abrasion surface 32, and a relatively inner surface 34 facing the portion of the lip 12 located behind the nose tip 14. Figure 5 and 6 The wear cap 26 may include a central section 38, wherein two wings 40, 40' extend laterally downward from opposite sides of the central section 38 to correspond to the shape of the lip 12 and / or the mounting base 18. The two wings 40, 40' may extend further forward than the central section 38. It should be understood that the shape of the wear cap 26 may vary depending on the external shape of the lip 12 it covers. The inner surface 34 of the wear cap 26 may include laterally spaced support surfaces 41, 41'. Figure 5 and 6 The supporting surface and the supporting surfaces 13 and 13' on the lip 12 ( Figure 4 Correspondingly, the laterally spaced support surfaces 41, 41' are shown located on the corresponding two wings 40, 40', but other locations may be used. Support surfaces 41, 41' and 13, 13' may each include raised portions relative to the surrounding areas of the inner surface 34 and the lip 12. Support surfaces 41, 41' press against the corresponding support surfaces 13, 13' on the lip 12 to resist vertical loads applied to the wear cap 26. The pressing of support surfaces 41, 41' against support surfaces 13, 13' provides a stable platform for the wear cap 26 to withstand downward vertical loads. The areas surrounding support surfaces 41, 41' and 13, 13' in the inner surface 34 and the lip 12 may be non-supported areas.

[0072] The wear-resistant cap 26 includes a retaining feature 42 extending from the front portion 29 of the wear-resistant cap 26. In the illustrated example, the retaining feature 42 extends from the front wall 36, but other configurations are possible. For example, as an alternative, the retaining feature 42 may extend from a mounting base to fit into a second retaining feature configured oppositely in the wear-resistant cap. In the illustrated example, the retaining feature 42 is an engagement tab. The engagement tab 42 defines an upper surface 43 and a lower surface 44 extending from the front wall 36 toward the nose 45 of the engagement tab 42. In the illustrated example, when a load is applied, the upper surface 43, the lower surface 44, and the two lateral side surfaces 46, 46' are supported. It should be understood that, based on the shape of the engagement tab 42 and the lip 12, the upper surface 43 and the lower surface 44 may be supporting surfaces or non-supporting surfaces. In the illustrated example, the engagement tab 42 extends from the front wall 36 such that the lower surface 44 protrudes below the inner lower surface 34. The position of the engaging tab 42 relative to the inner surface 34 may vary depending on the shape of the lip 12 and the mounting base 18. The upper surface 43 and lower surface 44 of the engaging tab 42 may be planar or curved between the front wall 36 and the nose 45 of the engaging tab 42. Curved lower surface 43 and upper surface 44 may facilitate rotational removal. The engaging tab 42 may also be angled or curved downward or outward from the inner lower surface 34.

[0073] The wear-resistant cap 26 further includes a closed boss receiving cavity 48, which is located in the rear portion 28 and generally faces the outer surface from the inner surface 34. Figure 5-6 The boss receiving cavity 48 is shown as having a rectangular shape, but other shapes corresponding to the shape of the boss 16 are also possible. In the example shown, the boss receiving cavity 48 includes an inner surface comprising a rear surface 49 and an angled front wall 50. The boss receiving cavity 48 may additionally include two shoulder structures 51, 51' located on opposite sides of the angled front wall 50. The boss receiving cavity additionally has two side surfaces 52, 52' extending between the shoulder structures 51, 51' and the rear surface 49. The boss receiving cavity 48 may additionally include a top surface 53 extending from the rear inner surface 49 between the two inner side surfaces 52, 52' and the two shoulder structures 51, 51'. The angled front wall 50 may be a non-supporting surface. The two shoulder structures 51, 51' may each include a substantially planar non-supporting surface 54, 54', and a rear wall 55, 55' extending substantially transversely to the top surface 53 toward the planar non-supporting surface 54, 54'. Figure 5 The rear surface 49, the two side surfaces 52, 52', the rear walls 55, 55' of the shoulder structures 51, 51', and the top surface 53 may be supporting surfaces. In another configuration, the boss receiving cavity 48 may have a simplified rectangular shape, defining an inner surface that can be pressed against the corresponding surface of the boss 16.

[0074] The wear-resistant cap 26 includes a locking cavity 56 at its rear portion 28, angled forward. The locking cavity 56 extends from the outer wear surface 32 into the boss receiving cavity 48 via an angled front wall 50. The locking cavity 56 in the wear-resistant cap 26 is defined by an inner wall 58, which preferably surrounds the locking mechanism 30". Figure 3 In the illustrated example, the inner wall 58 is cylindrical, but other configurations are possible. The inner wall 58 includes a retaining structure 60 that extends laterally along a portion of the wall 58 to define a first latching support surface 62 and a second latching support surface 62'. In a preferred embodiment, the retaining structure 60 is formed as a radially projecting portion extending from the wall 58 into the latching cavity 56, wherein the support surfaces 62, 62' are formed as an upper shoulder and a lower shoulder. The latching support surfaces 62, 62' each contact the latch 30" to hold the latch 30" in the latching cavity 56 and resist inward and outward forces applied to the latch 30" during transport, storage, installation, and use of the wear cap 26, in order to better resist latch ejection or loss. The latch 30" can be used to releasably secure the rear portion 28 of the wear cap 26 to the boss 16 ( Figure 3 Details of the preferred locking mechanism 30" are provided below. However, other types of locking mechanisms, retainers, or fasteners can be used to secure the wear-resistant cap 26 to the boss 16. Of course, in instances using alternative locking mechanisms, the shapes of the locking cavity 56 in the wear-resistant cap and the retaining feature in the boss differ from those shown herein in order to accommodate different locking mechanisms.

[0075] The base 12 includes a boss 16, shown as being located on the inner side of the base 12, but other configurations are also contemplated, such as being located on the outer side of the base 12. Figure 4As shown, the boss 16 includes a lower support 64, which is preferably welded to the base 12, but may also be cast into the base 12. In some examples, the lower support 64 may include a front wall 66, an opposing rear wall 68, and two transverse walls 69, 69' extending between the front wall 66 and the opposing rear wall 68. The boss 16 includes a protruding member 70 that projects inwardly into the bucket (not shown) and stands upright from the opposing rear wall 68 of the lower support 64. The protruding member 70 extends partially from the opposing rear wall 68 toward the front wall 66 between the two transverse walls 69, 69'. The rear surface 72 of the protruding member 70 may be bent or angled to correspond to the rear inner surface 49 of the boss receiving cavity 48, thereby facilitating the rotational removal and installation of the wear cap 26. The boss 16 further includes a rib 74 having an angled front end 76 extending from the front wall 66 toward the protruding member 70. Rib 74 may be centrally positioned between the two transverse walls 69, 69'. Rib 74 may include a retaining feature 78. In the illustrated example, the retaining feature is shown as a latch receiving hole 78, but in other configurations, it may be a protrusion, such as a strut / knob, and the latch pin may include a mating recess for support engagement with the outer surface of the protrusion. The latch receiving hole 78 may extend into the inclined front 76 and lower support 64 of rib 74. The latch receiving hole 78 may be defined by a portion of wall 80 defining a forward-inclined latch support surface 82, but other configurations are also possible. For example, the latch receiving hole may be defined by an entire cylindrical wall. Boss 16 is preferably cast from an alloy harder than base 12 to help reduce wear on base 12 and facilitate its maintenance, but various alloys with the same or lower hardness may also be used. Although in this embodiment the boss has a single-piece structure, it may also be defined by multiple parts joined together or individually fixed to base 12. For example, the tab can be attached to the rest of the boss using bolts or a few easily removable and replaceable welds. In other examples, the lower support, protruding member, and rib can be formed as separate pieces or all as part of a base, which can be formed by casting or fabrication. Separate piece structures have the advantage over monolithic structures, allowing the wear cap 26 to be removed or installed by removing one or more separate pieces of the boss. In another configuration, the boss can have a generally rectangular shape defining a front wall into which the locking receiving hole 78 extends at least partially, thereby defining the rearward tilting locking support surface 82.

[0076] The protruding member 70 may have an external support surface comprising: a rear surface 72, two front surfaces 84, 84' located on opposite sides of the rib 74, two lateral side surfaces 86, 86' extending between the two front surfaces 84, 84' and the rear surface 72, and a top surface 88 extending from the rear surface 72 between the two lateral side surfaces 86, 86'. When the wear cap 26 is fully installed, the outer support surface may press against the corresponding surface in the boss receiving cavity 48. The rear inner surface 49 and rear walls 55, 55' of the recess 48 press against the rear surface 72 and front surfaces 84, 84' of the protruding member 70 to resist axial (forward and rearward) loads applied to the wear cap 26. The top surface 53 of the recess 48 presses against the top surface 88 of the protruding member 70 to resist downward vertical loads applied to the wear cap 26. The inner side surfaces 52, 52' of the recess 48 press against the transverse sidewalls 86, 86' of the protruding member 70 to resist lateral loads applied to the wear-resistant cap 26. The inner surface of the boss receiving cavity 48 presses against the outer surface of the protruding member 70, enabling the wear-resistant cap 26 to be stably installed under axial, vertical and / or lateral loads.

[0077] In the example shown, the lock 30" includes a mounting component or collar 90 and a retaining component or pin 92. Figure 3 The collar 90 is fitted into the locking cavity 56 of the wear-resistant cap 26 and includes a threaded hole or opening 94 for receiving a pin 92 with a matching thread 96. The collar 90 has a cylindrical body with lugs 98, 98' that project outwards to contact and press against the support surface or shoulders 62, 62' of the retaining structure 60, thereby holding the lock 30" in place within the wear-resistant member 26. For installation, the collar 90 is inserted into the lock cavity 56 and then rotated so that the lugs 98, 98' span the retaining structure 60. The engagement of the lugs 98, 98' with both sides of the retaining structure 60 secures the collar 90 in the lock cavity 56, even under load during excavation. With the collar 90 installed in the lock cavity 56, the pin 92 is installed in the collar 90 and rotated until the pin end 100 is fully received in the hole 78. In use, the pin end 100 presses against the inclined lock support surface 82 to limit the removal of the wear-resistant cap 26. In another configuration, the lock cavity 56 of the wear-resistant cap 26 may be internally threaded to receive the pin 92 with mating threads 96.

[0078] Pin 92 can be installed from the external wear-resistant member 26 into the collar 90 such that pin end 100 is the front end and engages the interior of the latch receiving hole 78 in the boss 16 at the latch support surface 82, and pin thread 96 engages collar thread 94. Pin end 100 is preferably unthreaded so as to receive in the latch receiving hole 78 in the boss 16. Wear-resistant member 26 may include an integral latch 30", which can be installed within wear-resistant member 26 before wear-resistant member is installed onto the lip 12. In this example, latch 30" will have a transport or release position and a locked position, which latch 30" is in when received into boss 16, thereby locking wear cap 26 to lip 12. In an alternative example, where the retaining feature is a protrusion, such as a strut / knob, the pin of the latch includes a mating recess for engaging with the protrusion support.

[0079] Mounting base 18 includes an inner surface 22, and the base includes an integral nose 14 having corresponding support surfaces that can press against each other to limit movement. Figure 7 The stabilizing surface on the inner surface 22 presses against the stabilizing surface on the nose 14, enabling the intermediate mount 18 to be stably mounted under vertical and lateral loads. The support surface may be similar to the support surface disclosed in U.S. Patent Application No. 17 / 686,370, “Wear Assembly,” which is incorporated herein by reference. The stabilizing surface of the integral nose 14 may include a rear support surface (not shown). The rear support surface (not shown) may include a top rear support surface, a bottom rear support surface, and / or a side rear support surface. The rear support surface may correspond to the rear support surface (not shown) on the inner surface 22 of the mount 18. The stabilizing surface of the integral nose 14 may additionally include a front support surface (not shown). The front support surface (not shown) may include a top front support surface, a bottom front support surface, and / or a side front support surface.

[0080] Mounting base 18 may include a second retaining feature 106 corresponding to a first retaining feature of the wear cap 26 to help secure the wear cap 26 to the mounting base 18. In the illustrated example, the second retaining feature is an engagement tab opening 106 located on the rear wall 20 of the mounting base 18. Figure 3 and 7 In the context of the engagement tab opening 106 and the engagement tab 42 of the wear-resistant cap 26. Figure 3The engagement tab opening 106 can be a recess or cutout structure located in the upper part of the rear wall 20 and extending from the inner surface 22 of the cavity 19. In the illustrated example, the inner surface 22 where the engagement tab opening 106 is located is the non-supporting surface of the nose 14 of the base. The advantage is that the non-supporting surface does not encroach upon or limit the rear support surface between the mounting base 18 and the base. This advantage allows for deeper recesses as needed and makes the recesses more robust in manufacturing. The engagement tab opening 106 can define an inner upper surface 108 and side surfaces 110, 110', which extend from the inner surface 22 to the inner upper surface 108. Figure 7 The inner upper surface 108 and / or side surfaces 110, 110' of the tab opening 106 may be supporting surfaces or non-supporting surfaces. The engaging tab opening 106 may further define a front wall 112. The front wall 112 may extend from the inner surface 22 toward the upper surface 108 between the side supporting surfaces 110, 110'. The supporting surfaces 110, 110' of the engaging tab opening 106 may correspond to the supporting surfaces 46, 46' of the engaging tab 42 to limit lateral forces applied to the wear cap 26. The upper surface 43 of the engaging tab 42 may also press against the upper surface 108 of the engaging tab opening 106 to limit upward vertical forces applied to the wear cap 26. The inner upper surface 108 may be upwardly curved or inclined between the front wall 112 and the rear wall 20 to help stabilize the wear cap 26.

[0081] Engaging tabs 42 and engaging tab openings 106 define corresponding engagement structures that allow the engaging tabs 42 of the wear cap 26 to be secured in the rear wall 20 of the mounting base 18 under the engaging tab openings 106, or vice versa. The lip 12 may also include recesses (not shown) shaped and sized to receive at least a portion of the engaging tabs 42 of the wear cap 26. For example, the lip 12 may include a central recess (not shown) for receiving at least a portion of the engaging tabs 42. It should be understood that in some cases, if the recess in the lip 12 is shaped to receive the engaging tabs 42, with the inner surface 22 of the mounting base pressing against the engaging tabs 42, then the engaging tab openings 106 in the mounting base can be removed.

[0082] The construction of the wear-resistant cap 26, mounting base 18, and boss 16 allows the wear-resistant cap 26 to be installed or removed without first removing the mounting base 18. With the mounting base 18 secured to the nose 14, the engaging tab 42 is inserted into the corresponding engaging tab opening 106, while the rear portion 28 of the wear-resistant cap 26 remains spaced from the lip 12. With the engaging tab 42 in the engaging tab opening 106, the rear portion 28 of the wear-resistant cap 26 pivots about the engaging tab 42 to rotate toward the lip 12 until the boss 16 is received in the boss receiving cavity 48. The forward-tilting locking cavity 56 in the wear-resistant cap and the locking receiving hole 78 in the boss 16 can be axially aligned with each other. Subsequently, when the pin end 100 is received in the locking receiving hole 78 and presses against the locking support surface 82, the wear-resistant cap 26 is secured to the boss 16 via the locking 30".

[0083] With the wear-resistant cap installed, the supporting inner surface of the boss receiving cavity 48 abuts against the outer surface of the protruding member 70 of the boss 16, allowing the wear-resistant cap 26 to be stably installed under vertical, axial, and lateral loads. The inner surface of the boss receiving cavity 48 includes a rear surface 49 and rear walls 55, 55', which press against the rear surface 72 and two front surfaces 84, 84' of the protruding member 70 to limit the axial load applied to the wear-resistant cap 26. The inner surface of the boss receiving cavity 48 may additionally include a top surface 53, which presses against the top surface 88 of the boss 16 to limit the vertical load applied to the wear-resistant cap 26. In another configuration, the top surfaces 53 and 88 may be gap surfaces, in which the inner surface 34 of the wear-resistant cap 26 presses against the lip 12 to limit the vertical load applied to the wear-resistant cap 26. The stabilizing surface of the boss receiving cavity 48 may also include two side surfaces 52, 52', which press against the two transverse side surfaces 86, 86' of the protruding member 70 to limit the lateral load applied to the wear-resistant cap 26. In the illustrated example, the support surfaces 41, 41' also press against the support surfaces 13, 13' to limit the vertical load applied to the wear-resistant cap 26.

[0084] The support surface on the engaging tab 42 presses against the stabilizing surface on the engaging tab opening 106, allowing the wear-resistant cap 26 to be stably installed under vertical and lateral loads. The stabilizing surface on the engaging tab 42 includes a top surface 43, which corresponds to the inner upper support surface 108 to limit the vertical load applied to the wear-resistant cap 26. The stabilizing surface on the engaging tab 42 also includes side support surfaces 46, 46', which correspond to the side support surfaces 110, 110' of the engaging tab opening 106 to limit the lateral load applied to the wear-resistant cap 26.

[0085] Similar to the installation process, when the wear cap 26 is removed, the pin end 100 retracts from the locking receiving hole 78, causing the rear portion 28 of the wear cap 26 to pivot about the engaging tab 42, thereby displacing it away from the lip 12. Removal may require some vertical movement and some rotational movement. The wear cap 26 can then be displaced rearward to retract the engaging tab 42 from the engaging tab opening 106, allowing the wear cap 26 to be removed and replaced without removing the mounting base 18.

[0086] Figures 8 to 12 A second example of a portion of the wear-resistant assembly 10A is shown. The wear-resistant assembly 10A is substantially similar to the wear-resistant assembly 10 and includes a first wear-resistant member 18A in the form of a mounting base, a second wear-resistant member (not shown), and a third wear-resistant member in the form of a wear-resistant cap 26A, which is fixable to a boss 16A, which is fixed to a lip 12A such that the wear-resistant cap 26A covers a portion of the lip 12A.

[0087] The abrasion cap 26A is similar to the abrasion cap 26 and includes a rear portion 28A, a front portion 29A, an outer abrasion surface 32A, a relative inner surface 34A facing the portion of the lip 12A located behind the nose (not shown), and a front wall 36A extending at the front end 29A between the outer abrasion surface 32A and the relative inner surface.

[0088] The wear-resistant cap 26A includes two retaining features 42A, 42A', which are laterally spaced from each other and extend from the front portion 29A of the wear-resistant cap 26A. In the illustrated example, the two retaining features are engaging tabs 42A, 42A' extending from the front wall 36A of the two wings 40A, 40A'. In other examples, the retaining features 42A, 42A' are two recesses for engaging tabs on the mounting base 18A. Like the wear-resistant cap 26, the engaging tabs 42A, 42A' define an upper surface 43A, a lower surface 44A, a nose 45A, and two lateral side surfaces 46A, 46A', respectively. However, other configurations are also possible. It should be understood that, based on the shape of the engaging tabs and the lip 12A, the upper surface 43A, lower surface 44A, and lateral side surfaces 46A, 46A' of the engaging tabs 42A, 42A' can be supporting surfaces or non-supporting surfaces. In the illustrated example, engaging tabs 42A, 42A' extend from the front wall 36A such that the lower surface 44A of each tab protrudes below the opposing inner surface 34A. The position of the engaging tabs 42A, 42A' relative to the inner surface 34A may vary depending on the shape of the lip 12A and the mounting base 18A. The upper surface 43A and lower surface 44A of each of the engaging tabs 42A, 42A' may be planar or curved between the front wall 36A and the nose 45A of the engaging tabs 42A, 42A'. Curved lower surfaces 43A and upper surfaces 44A may facilitate rotational removal. The engaging tabs 42A, 42A' may also be angled or curved downward or outward from the inner lower surface 34A.

[0089] The wear-resistant cap 26A further includes a closed boss receiving cavity 48A, which is located in the rear portion 28A and extends generally from the inner surface 34A toward the outer surface. Figure 9 and 11 The boss receiving cavity 48A is shown as having a rectangular shape, but other shapes corresponding to the shape of the boss 16A are also possible. Figure 9 and 11The boss receiving cavity 48A may include an internal surface comprising a front surface 49A and an angled rear wall 50A. The boss receiving cavity 48A may additionally include two shoulder structures 51A, 51A' located on opposite sides of the angled rear wall 50A, and two internal side surfaces 52A, 52A' extending between the shoulder structures 51A, 51A' and the front internal surface 49A. The boss receiving cavity 48A may additionally include a top surface 53A extending from the front internal surface 49A between the two internal side surfaces 52A, 52A' and the two shoulder structures 51A, 51A'. The angled rear wall 50A may be a non-supporting surface. The two shoulder structures 51A, 51A' may each include substantially planar non-supporting surfaces 54A, 54A', and front walls 55A, 55A' extending substantially transversely to the inner top 53A toward the planar non-supporting surfaces 54A, 54A'. The front inner surface 49A, the two inner side surfaces 52A and 52A', the front wall 55A and 55A' of the shoulder structure, and the top surface 53A can be supporting surfaces.

[0090] The wear-resistant cap 26A includes a locking cavity 56A at the rear portion 28 of the wear-resistant cap 26A, which is inclined backward. The locking cavity 56A can extend from the outer wear surface 32 into the boss receiving cavity 48A through an angled rear wall 50A. The locking cavity 56A in the wear-resistant cap 26A is defined by an inner wall 58A preferably surrounding the locking 30A". Figure 9 In the example shown, the inner wall 58A is cylindrical, but other configurations are possible. Wall 58A includes a retaining structure 60A, similar to the retaining structure of wall 58A discussed above. Figure 9 ).

[0091] The lip 12A includes a boss 16A, which is shown as being located on the inner side of the lip 12A. Figure 10 However, other configurations are also envisioned, such as one located on the outer side of the lip 12A. Boss 16A is substantially similar to boss 16, except as otherwise indicated. Boss 16A includes a lower support member 64A ( Figure 10 The lower support member is preferably welded to the base 12A, but may also be cast into the base 12A. In some examples, the lower support member 64A may include a front wall 66A. Figure 9 The front wall 66A and the rear wall 68A are opposite to each other, and two transverse walls 69A, 69A' extend between the front wall 66A and the rear wall 68A. The boss 16A includes a protruding member 70A that projects inwardly into the bucket (not shown) and stands upright from the front wall 66A of the lower support 64A. The protruding member 70A extends partially from the front wall 66A toward the rear wall 68A between the two transverse walls 69A, 69A'. The front surface 72A of the protruding member 70A ( Figure 9The boss 16A can be bent or tilted to correspond to the front inner surface 49A of the boss receiving cavity 48A, thereby facilitating the rotational removal and installation of the wear cap 26A. The boss 16A further includes a rib 74A having an inclined rear end 76A extending from the rear wall 68A toward the protruding member 70A. The rib 74A can be centrally positioned between the two transverse walls 69A, 69A'. The rib 74A may include a retaining feature 78A. In the illustrated example, the retaining feature is shown as a latch receiving hole 78A, but in other configurations, it can be a protrusion, such as a strut / knob, and the latch pin includes a mating recess for supporting engagement. The latch receiving hole 78A can extend into the inclined rear end 76A of the rib 74A and the lower support member 64A. The latch receiving hole 78A can be defined by a portion of the wall 80A defining a rearwardly inclined latch support surface 82A. Figure 10 However, other configurations are also possible. For example, the locking receiver hole 82A can be defined by the entire cylindrical wall.

[0092] The protruding member 70A may have an outer surface comprising a front surface 72A, two rear surfaces 84A, 84A' located on opposite sides of the rib 74A, two lateral side surfaces 86A, 86A' extending between the two rear surfaces 84A, 84A' and the front surface 72A, and a top surface 88A'. When the wear cap 26A is fully installed, the outer surface may press against the corresponding surface in the boss receiving cavity 48A. The front inner surface 49A and the front walls 55A, 55A' of the cavity 48A press against the front surface 72A and the rear surfaces 84A, 84A' of the protruding member 70A to resist axial (forward and backward) loads applied to the wear cap 26A. The top surface 53A of the cavity 48A may press against the top surface 88A of the protruding member 70A to resist vertical loads applied to the wear cap 26A, but other configurations are also possible. For example, the inner surface 34A of the wear-resistant cap 26A can press against the lip 12A to resist vertical loads applied to the wear-resistant cap 26A. The inner side surfaces 52A, 52A' of the cavity 48A press against the transverse sidewalls 86A, 86A' of the protruding member to resist lateral loads applied to the wear-resistant cap 26A. The inner surface of the boss receiving cavity presses against the outer surface of the protruding member, enabling the wear-resistant cap 26A to be stably installed under axial, vertical, and / or lateral loads.

[0093] The latch 30A is "similar to the latch 30 discussed above", wherein the collar 90 is mounted in the latch cavity 56A, and the pin end 100 engages the interior of the latch receiving hole 78A at the latch support surface 82A. In an alternative example, where the retaining feature is a protrusion, such as a strut / knob, the latch pin includes a mating recess for engaging with the protrusion support.

[0094] Mounting seat 18A is similar to mounting seat 18, but includes a second retaining feature. In the illustrated example, the second retaining feature is an engagement tab opening 106A, 106A' located in the rear wall 20A of mounting seat 18A. The engagement tab openings 106A, 106A' may be laterally spaced from each other, but other configurations are also possible. The engagement tab openings 106A, 106A' interact with the engagement tabs 42A, 42A' of the wear-resistant cap 26A. The engagement tab openings 106A, 106A' may each be a recess or cutout structure located in the upper portion of the rear wall 20A and extending from the inner surface 22A of the cavity 19A. The engagement tab openings 106A, 106A' may respectively define the inner upper surface 108 and the side surfaces 110A, 110A' extending from the inner surface 22A to the inner support surface 108A. Figure 12 Each of the engagement tab openings 106A and 106A' can further define a front wall 112A. The front wall 112A can extend from the inner surface 22A toward the upper support surface 108 between the side surfaces 110A and 110A'. The surfaces 108A, 110A, and 110A' of the engagement tab openings 106A and 106A' can press against the surfaces 43A, 46A, and 46A' of the engagement tabs 42A and 42A' to limit lateral and vertical forces applied to the wear-resistant cap 26A. The inner upper surface 108A of each engagement tab opening 106A and 106A' can be bent upwards or tilted between the front wall 112A and the rear wall 20A to help stabilize the wear-resistant cap 26A.

[0095] like Figure 12As shown, the cavity 19A of the mounting base 18A has a front and a rear portion. The rear portion may include two rear support surfaces located on the top surface of the mounting cavity. The two support surfaces converge toward the central portion of the top surface, but other angles are also possible. The two rear support surfaces press against complementary surfaces on the support base. Engaging tab openings 106A, 106A' are located on the rear wall 20A and extend forward toward the front, thereby reducing the size of the two rear support surfaces. The size and shape of the engaging tab openings 106, 106' are configured to allow engagement tabs 42A, 42A' to be inserted. Engaging tab openings 106A, 106A' are shown communicating with the cavity 19A, but other configurations are also possible, such as recesses communicating only with the rear portion of the mounting base and not with the cavity 19A. In some examples, engagement tabs 42A, 42A' may press against surfaces 108A and / or 110A. When the size of the support surface is reduced, the placement of the engagement tab openings 106A, 106A' may seem counterintuitive; however, this placement provides a more stable surface for the wear-resistant cap 26A to interface with than a single protrusion on the gap surface. The wider integral engagement also provides greater stability. The separation of the protrusions from the recesses positions the support surface in a lower wear zone, thereby allowing for further protection of the interface between the wear-resistant component and the wear-resistant cap.

[0096] The construction of the wear-resistant cap 26A, mounting base 18A, and boss 16A allows the wear-resistant cap 26A to be installed or removed without first removing the mounting base 18A. The installation and removal of the wear-resistant cap 26A is similar to the installation and removal of the wear-resistant cap 26 described above.

[0097] Figures 13 to 15 Another example of a portion of the wear-resistant assembly 200 is shown. The wear-resistant assembly 200 is substantially similar to... Figures 1 to 12 The wear-resistant assembly shown includes a first wear-resistant member 202 in the form of a mounting base, a second wear-resistant member (not shown), and a third wear-resistant member 204 in the form of a wear-resistant cap. The third wear-resistant member is fixed to a boss 206, which is fixed to a dovetail 212 such that the wear-resistant cap 204 covers a portion of the dovetail 212. The mounting base 202 can be similar to... Figure 7 Mounting bracket 18 shown.

[0098] The abrasion cap 204 includes a rear portion 228, a front portion 229, an outer / external abrasion surface 232, a relative inner surface 234 facing the portion of the lip 212 located behind the nose tip 214, and a front wall 236 extending at the front portion 229 between the outer abrasion surface 232 and the relative inner surface 234.

[0099] The wear-resistant cap 204 may define a longitudinal axis 205 along a centerline extending in the forward direction of the earthmoving equipment. The wear-resistant cap 204 includes a closed boss receiving cavity 208. Figure 14 and 15 A closed boss receiving cavity 208 is located in the rear portion 228 of the wear-resistant cap 204 and extends generally from the inner surface 234 toward the outer surface 232. The boss receiving cavity 208 is shown as having a rectangular shape, but other shapes corresponding to the shape of the boss 206 are also possible. The boss receiving cavity 208 defines an inner surface that includes a front wall 212, a rear wall 214, side walls 216, 216' extending between the front wall 212 and the rear wall 214, and a top surface 215. The inner surfaces 212, 214, 216, 216', 215 may define axial, lateral, and / or vertical bearing surfaces that press against the corresponding outer surface of the boss 206, but other configurations are also possible. For example, the top surface 215 of the boss receiving cavity 208 can be a non-supporting surface, wherein the inner surface 234 of the wear-resistant cap 204 presses against the corresponding surface of the lip 212 to limit the downward vertical force applied to the wear-resistant cap 204.

[0100] The wear-resistant cap 204 includes a locking cavity 210 that extends from the outer surface 232 and communicates with the boss receiving cavity 208. In the illustrated example, the locking cavity 210 extends from the outer side surface 222 into the boss receiving cavity 208 in a direction substantially transverse to the longitudinal axis 205, exits the boss receiving cavity through the inner side wall 216', and again extends out through the opposing outer side surface 222'. The locking cavity 210 may extend from either side or both sides of the wear-resistant cap 206. In another configuration, the locking cavity 210 may extend substantially parallel from the outer rear surface into the boss receiving cavity 208 through the rear wall 214. In this document, "substantially parallel" does not imply a precise parallel orientation, but rather includes all parallel directions as well as directions deviating from the longitudinal axis by a small angle (e.g., about 0-10 degrees). The locking cavity 210 is similar to a reference... Figure 3The locking cavity 56 is discussed in paragraph

[0041] . In another configuration, the locking cavity 210 may be internally threaded for receiving a locking member 230 with matching threads, wherein the locking member 230 is movable between a held position and a released position, in which the locking 230 interfaces with the locking support surface 236 to hold the wear cap 204 to the lip 212, and in the released position, the locking 230 allows the wear cap 204 to be removed from or installed onto the lip 212. In another configuration, the boss 206 may include a locking protrusion (not shown), wherein a locking member (not shown) received within a locking cavity 210 is arranged to be movable between a held position and a released position, in which the locking member (not shown) interfaces with the locking protrusion (not shown) to hold the wear cap 204 to the lip 212, and in the released position, the locking member (not shown) allows the wear cap 204 to be removed from or attached to the lip 212.

[0101] In the illustrated example, the wear cap 204 includes two recesses 218, 218' on the outer wear surface 232 of the opposite sides 222, 222' of the boss receiving cavity 208. The recesses 218, 218' define upper surfaces 220, 220', and the sidewalls 222, 222' extend laterally from the upper surfaces 220, 220' toward the outer wear surface 232. In this example, the wear cap 204 may additionally include a groove 224 located in the upper surface 220. The groove may be axially aligned with the locking cavity 210 for insertion of the locking latch 230. The locking latch 230 may be similar to the locking latch 30" discussed above. In another configuration, the locking cavity 210 extends from the outer surface 232 into the boss receiving cavity 208 at the rear 228, thereby eliminating the need for the two recesses 218, 218'.

[0102] In the example shown, the wear-resistant cap 204 also includes laterally spaced front support surfaces 241, 241', which correspond to the front support surfaces 213, 213' on the lip 12. Figure 14 ).

[0103] In the illustrated example, the wear-resistant cap 204 includes an engaging tab 242 extending from the front portion 229, and more specifically, from the front wall 36 of the wear-resistant cap 204. The engaging tab 242 defines an upper surface 243 and a lower surface 244 extending from the front wall 236 toward the nose 245 of the engaging tab 242. It should be understood that, based on the shape of the engaging tab 242 and the lip 212, the upper surface 243 and the lower surface 244 can be supporting surfaces or non-supporting surfaces. In the illustrated example, the engaging tab 242 extends from the front wall 36 such that the lower surface 244 protrudes below the inner surface 234. The position of the engaging tab 242 relative to the inner surface 234 may vary depending on the shape of the lip 212 and the mounting base 202.

[0104] The boss 206 has a substantially rectangular shape and is preferably welded to the lip of the bucket such that the boss 206 protrudes from the lip 212. Figure 13 However, other constructions are also possible. For example, the boss can be cylindrical or circular. Boss 206 includes an outer surface, which includes a front wall 226 and a rear wall 228. Figure 15 The boss 206 comprises sidewalls 231, 231' and a top surface 217 extending between the front wall 226 and the rear wall 228. The rear wall 228 of the boss 206 may be bent or angled to correspond to the inner rear wall 214, thereby facilitating the rotational removal and installation of the wear cap 204. The boss 206 may additionally include a retaining feature 232. In the illustrated example, the retaining feature 232 is shown as a latch receiving hole, but in other configurations it may be a protrusion, such as a support / knob, and the latch pin includes a mating recess for supporting engagement. The latch receiving hole 232 extends laterally through the boss 206. In the illustrated example, the latch receiving hole 232 is a through-hole extending from the sidewalls 231, 231' to the opposite sidewall (not shown). The latch receiving hole 232 may also be a blind hole extending partially into the boss 206 through either sidewall 231, 231'. The latch receiving hole 232 is defined by an inner wall 234, which in the illustrated example is cylindrical, but other configurations are possible, thereby defining the upper latch support surface 236. Figure 15 In another configuration, the locking cavity 210 extends substantially parallel to the longitudinal axis 205, and the locking receiving hole 232 extends substantially parallel to the longitudinal axis from the rear wall 228 at least partially through the boss 206. In this document, "substantially parallel" does not imply precise parallel orientation, but rather includes all directions deviating from the longitudinal axis by a small angle (e.g., about 0-10 degrees). In alternative examples, the protrusion may extend laterally outward from the boss, or substantially parallel to the longitudinal axis. A retaining feature may define an outer locking support surface, wherein the locking pin has a mating recess for supporting engagement with the outer surface locking support portion of the protrusion.

[0105] With the mounting base 202 secured to the nose end 214, the engaging tab 242 is inserted into the corresponding engaging tab opening 106, while the rear portion 228 of the wear-resistant cap 204 remains spaced from the lip 212. With the engaging tab 242 in the engaging tab opening 206, the rear portion 228 of the wear-resistant cap 204 pivots about the engaging tab 242 to rotate toward the lip 212 until the boss 206 is received in the boss receiving cavity 208. Subsequently, when the pin end 202 is received in the locking receiving hole 232 and presses against the locking support surface 236 to hold the wear-resistant cap 206 to the lip 212, the wear-resistant cap 204 is secured to the boss 206 via the locking 230. With the wear-resistant cap installation complete, the inner surface of the boss receiving cavity 208 presses against the outer surface of the boss 206, allowing the wear-resistant cap 204 to be stably installed under vertical, axial, and / or lateral loads.

[0106] Figure 16 and 17 Another example of a portion of the wear-resistant assembly 200A is shown. The wear-resistant assembly 200A is similar to... Figures 12 to 13 The wear-resistant assembly 200 shown includes a first wear-resistant member 202A in the form of a mounting base, a second wear-resistant member (not shown), and a third wear-resistant member 204A in the form of a wear-resistant cap. The third wear-resistant member is fixed to a boss 206A, which is fixed to a dovetail 212A such that the wear-resistant cap 204A covers a portion of the dovetail 212A. The mounting base 202A can be similar to... Figure 12 Mounting bracket 18A shown.

[0107] Similar to the abrasion cap 26A, the abrasion cap 204A contains two engaging tabs 242A, 242A'.

[0108] The wear-resistant cap 204A may also include rear support surfaces 237A and 237A', which are spaced apart on the opposite side of the boss receiving cavity 208A at the rear portion 228A of the inner surface 234A. The rear support surfaces 237A and 237A' correspond to the rear support surfaces 238A and 238A' on the lip 212A.

[0109] In this example, the top surface 215A of the boss receiving cavity 208A and the top surface 217A of the boss 206A can be gap surfaces. The stabilizing surface of the wear-resistant cap 204A may include a rear wear-resistant cap support surface 236A, which presses against a rear lip support surface 238A to limit the vertical load applied to the wear-resistant cap 204A.

[0110] exist Figure 18-19The image shows an example of a fifth wear-resistant assembly 310 or a tooth mounted on a support base. The fifth wear-resistant assembly 310 is substantially similar to wear-resistant assemblies 10, 10A, 200, and 200A, and includes a first wear-resistant member 318 in the form of a mounting base, a second wear-resistant member 324, and a third wear-resistant member in the form of a wear-resistant cap 326, which is fixed to a boss 316, which is fixed to a lip 312 such that the wear-resistant cap 326 covers a portion of the lip 312. The wear-resistant assembly 310' may include the first wear-resistant member 318, the second wear-resistant member 324, and a fourth wear-resistant member, such as a wing guard 360. The first wear-resistant member 318 is in the form of an intermediate mounting base (hereinafter referred to as the "mount") having a rear cavity 319 extending from the rear wall 320 and defining an inner surface 322 for mounting the mounting base 318 to an integral nose 314 ( Figure 27 Mounting base 318 further has a nose 321 extending from the front, to which a second wear-resistant member 324, in the form of a tooth tip or point, is secured. In the illustrated example, the wear-resistant cap 326 covers the portion of the lip 312 located behind the integral nose 314 during installation and is secured by the first wear-resistant member 318, but other configurations are possible. Mounting base 318 is secured to the integral nose 314 by a latch 330, but other configurations are possible. In one such example, the first wear-resistant member is a mechanically attached mounting base. In another example, the mounting base may be welded to the lip. The tooth tip 324 is again secured to mounting base 318 by a latch 330'. However, other configurations are possible; for example, the intermediate mounting base 318 may be secured to the integral nose by welding, bolts, fasteners, another type of latch, etc. (not shown).

[0111] refer to Figure 20-24 The 326 abrasion-resistant cap is basically similar to Figure 1-7 26. Abrasion-resistant cap Figure 8-12 Abrasion-resistant cap 26A and Figure 16-17The wear-resistant cap 26B has the following differences. The wear-resistant cap 326 includes a rear portion 328, a front portion 329, an outer wear surface 332, opposing inner surfaces 334 facing the portion of the lip 312 located behind the nose tip 314, and a front wall 336 extending at the front portion 329 between the outer wear surface 332 and the opposing inner surfaces. The wear-resistant cap 326 may include a central section 338, wherein two wings 340, 340' extend outward from opposite sides of the central section 338 to correspond to the shape of the lip 312 and / or the mounting base 318, but other configurations are also possible. The central section 338 is shown extending further than the front wall 336 in the forward longitudinal direction L, thus defining a central front wall 339, but other configurations are also possible. The front wall 336 bifurcates into two sections near the central section 338, which are shown as having corresponding surfaces 323, 323' on the mounting base 318. Figure 27 The supporting surface is provided, but other configurations are also possible. The central section 338 is shown as having a shelf surface 337 at approximately the middle position of the central section 338.

[0112] The wear-resistant cap 326 includes a retaining feature 342. In the illustrated example, the retaining feature is two engaging tabs 342, 342', which are laterally spaced apart from each other and extend laterally from each front wall 336 and from the central front wall 339 of the wear-resistant cap 326; however, other configurations are possible. For example, the retaining feature 342 may be a cavity in which a protrusion on a mounting seat is secured. In the illustrated example, the engaging tabs 342, 342' also extend laterally from the central front wall 339 in the forward longitudinal direction L; however, other configurations are possible. The engaging tabs 342, 342' define upper surfaces 343, 343', lower surfaces 344, 344', front surfaces 345, 345', and two lateral side surfaces 346, 346', respectively. However, other configurations are possible. In the illustrated example, when a load is applied, the upper surfaces 343, 343', the lower surfaces 344, 344', and the two lateral side surfaces 346, 346' are supporting surfaces. It should be understood that, based on the shape of the engaging tabs and the lip 312, the upper surfaces 343, 343', lower surfaces 344, 344', and lateral side surfaces 346, 346' of the engaging tabs 342, 342' can be supporting surfaces or non-supporting surfaces. In the illustrated example, the engaging tabs 342, 342' extend outward from the inner surface 334 such that the lower surface 344, 344' of each tab protrudes below the inner surface 334, but other configurations are also possible. The areas surrounding the supporting surfaces 344, 344' in the inner surface 334 and the lip 312 can be non-supporting areas. The position of the engaging tabs 342, 342' relative to the inner surface 334 can vary depending on the shape of the lip 312 and the mounting base 318. The upper surfaces 343, 343', lower surfaces 344, 344' and side surfaces 346, 346' of each of the engagement tabs 342, 342' are planar, but other configurations are also possible.

[0113] refer to Figure 20 and 23-24, the bifurcated front wall surface 336, upper surface 343, 343', and the two side surfaces 346, 346' press against the corresponding surfaces 308, 308', 310, 310' on the mounting base 318, as will be further discussed below. The lower surfaces 344, 344' press against the support surfaces 313, 313' on the lip 312, as will be further discussed below. The support surfaces 336, 343, 343', 346, 346', 344, 344' of the wear cap 326 press against the support surfaces 323, 323', 308, 308', 310, 310', 313, 313', which help provide a stable platform for the wear cap 326 to withstand vertical and / or horizontal loads. When the mounting base 318 is installed in place, the supporting surfaces 336, 343, 343', 346, 346', 344, and 344' of the wear-resistant cap 326 cause the front part 329 of the wear-resistant cap 326 to abut against the mounting base 318 and be fixed in place.

[0114] The wear-resistant cap 326 further includes a retaining feature 348. In the example shown, the retaining feature is a rearward boss receiving cavity 348, located in the rear portion 328 and extending inwardly from the rear wall 341 in the forward longitudinal direction L. Figure 20-22 For example, longitudinal measurement is the installation direction from the front of the bucket to the rear of the bucket and / or the wear cap 326, but other configurations are also possible. For example, as an alternative, the boss receiving cavity can be a protrusion to be received in an opposing cavity on the boss. The boss receiving cavity 348 is shown as having a rectangular shape, but other shapes corresponding to the shape of the boss 316 are also possible. The boss receiving cavity 348 may include an internal surface comprising a bottom surface 349, a side surface 347, and a rear surface 350. Rear wall 341 It may additionally include two support surfaces 351, 351', which are adjacent to the boss receiving cavity 348 and spaced apart from each other on either side, but other arrangements are also possible (e.g., not adjacent to cavity 348). The two support surfaces 351, 351' press against corresponding surfaces 385, 385' on the boss 316. Figure 23 The two support surfaces 351, 351' are shown as planar, but other configurations are possible. The two support surfaces 351, 351' are raised (e.g., projecting outwards) and surrounded by a non-supported area, but other configurations are also possible. In one example, the two support surfaces may be a single large surface, or the support surfaces may be inclined or curved. The side surface 347, bottom surface 349 on the rear wall 341 and the two support surfaces 351, 351' are all support surfaces that interact with the corresponding support surfaces on the boss 316, as discussed further below.

[0115] The lower rear support surface 352 of the wear-resistant cap 326 presses against the rear support surface 317 of the lip 312 to help resist the vertical load applied to the wear-resistant cap 126. The lower rear support surface 352 is shown adjacent to the rear wall 341, but other configurations are possible. The lower rear support surface 352 extends toward the front end 329 of the wear-resistant cap 326 in the forward longitudinal direction L, and in some examples narrows in this same direction, but other configurations are possible. The lower rear support surface 352 may be convex and surrounded by non-supporting inclined surfaces, etc. The lower rear support surface 352 corresponds to the support surface 317 on the lip 312. Figure 19 , 23 (and 24), to resist the vertical load applied to the wear-resistant cap 326.

[0116] refer to Figure 23-24 The support surfaces 347, 349, 351, 351', and 352 of the wear-resistant cap 326 press against the support surfaces 376, 376', 379, 385, and 385' of the boss 316 and the support surface 317 of the lip 312, helping to provide a stable platform for the wear-resistant cap 326 to withstand vertical and / or horizontal loads. When the wear-resistant cap 326 is installed in place, the support surfaces 347, 349, 351, 351', and 352 of the wear-resistant cap 326 hold the rear part 328 of the wear-resistant cap 326 against the boss 316 for secure fixation. The locking method of the wear-resistant cap 326 is unique, utilizing only the front and rear support surfaces; no other retaining features are required. The wear-resistant cap 326 can slide in the longitudinal direction L during use. To install and remove the wear cap 326, the mounting base 318 or boss 316 can be removed; however, in some cases, the wear cap 326 can be removed by rotation, as discussed above. In other examples, the boss tab 370 can be installed or removed separately using fasteners, bolts, or welding, thus providing an alternative for the removal and installation of the wear cap 326.

[0117] refer to Figure 25-26 The lip 312 includes a boss 316, shown as being located on the inner side of the lip 312, but other configurations are also contemplated, such as being located on the outer side of the lip. The boss 316 is preferably cast from an alloy harder than the lip 312 to help reduce the wear rate of the lip 312 and facilitate its maintenance, but various alloys with the same or lower hardness can also be used. Although in this embodiment the boss 316 has a single-piece structure, it can also be defined by multiple parts joined together or individually fixed to the lip 312. For example, certain portions of the boss 316 can be made of different materials. The boss 316 includes a body 364, which is preferably welded to the lip 312, but can also be cast, fastened, fixed, or bolted to the lip 312. In some examples, the body 364 may include a front wall 366 (…). Figure 26The front wall 366 comprises a rear wall 368 and two transverse walls 369, 369' extending between the front wall 366 and the rear wall 368. The rear wall 368 is shown as circular, but other shapes are also contemplated. The body 364 of the boss 316 includes a forward-projecting member 370 that projects outward in the longitudinal direction toward the nose 314 of the lip 312 and extends from the front wall 366 of the body 364. Member 370 bifurcates the front wall 366. The bifurcated front wall 366 includes two forward-supporting surfaces 385, 385' that press against corresponding support surfaces 351, 351' on the wear cap 326 when the wear cap 326 is driven forward.

[0118] The forward-projecting member 370 includes a front surface 374, two side surfaces 376 and 376', and a bottom surface 379. The supporting surfaces 385 and 385' of the front wall 366, the two side surfaces, and the bottom surface 379 all press against the corresponding surfaces 351, 351', 347, and 349 on the wear-resistant cap 326 to resist axial (rearward, upward, and lateral) loads applied to the wear-resistant cap 326 during use. Figure 23 In other examples, the top surface may be a supporting surface, depending on the retaining feature 370, which may be a hole or a recess. As shown, the bottom surface 379 and the side surfaces 376, 376' are planar, but may have a curve, angle, or non-linear shape to help press against the boss 316.

[0119] The lip 312 includes two laterally spaced support surfaces 313, 313' located behind the nose end 314, but other configurations are also possible (e.g., the support surfaces may be shared with the mounting base 318). When the wear cap is mounted on the lip and / or bears a load, the two support surfaces 313, 313' press against the lower support surfaces 344, 344' on the wear cap 326. The lip 312 also includes a rear support surface 317 adjacent to the boss 316, and in some examples, is as wide as the boss 316. The rear support surface 317 extends in a forward direction toward the nose end 314 of the lip 312, and in some examples, narrows in the same direction, but other configurations are also possible. The rear support surface 317 presses against the corresponding support surface 352 ( Figure 23-24 ).

[0120] refer to Figure 27Mounting base 318 is similar to mounting bases 18, 18A, 218 and includes two engagement tab openings 306, 306' located in the rear wall 320 of mounting base 318. The rear wall 320 includes a retaining feature 343. The retaining feature is shown as two upper support surfaces 323, 323' pressing against the front wall 336 of the wear cap 326, but other configurations are possible. For example, the retaining feature could be a single engagement support surface or at least one engagement tab for pressing against a corresponding recess on the wear cap. The two support surfaces 323, 323' converge towards each other from the center of the mounting base, but other angles are also possible. The size and shape of the engagement tab openings 306, 306' are configured to allow engagement tabs 342, 342' to be inserted. The engagement tab openings 306, 306' are shown not communicating with the cavity 319, but rather originating from the rear surface 311 of mounting base 318. This arrangement moves the support surface of the mount and the engagement of the wear cap to behind the support surface of the nose 314 of the lip 312 and the support surface of the intermediate mount 318 (as discussed above and in U.S. Patent Application No. 17 / 686,370), so that they do not interfere with each other. The engagement tab openings 306, 306' may be laterally spaced from each other and converge towards each other in the horizontal direction, as if the engagement tabs 342, 342' were angled. The engagement tab openings 306, 306' press against the engagement tabs 342, 342' of the wear cap 326 during loading. Each of the engagement tab openings 306, 306' may be a recess or cutout structure located in the upper portion of the rear wall 320 and extending from the inner surface 322 of the cavity 319. The engagement tab openings 306 and 306' define the inner upper surfaces 308 and 308' and the side surfaces 310 and 310', respectively. These surfaces press against the corresponding support surfaces 343, 343', 346, and 346' on the wear-resistant cap 326 (see...). Figure 23 The surfaces 308, 308', 310, and 310' of the engagement tab openings 306 and 306' can press against the surfaces 343, 343', 346, and 346' of the engagement tabs 342 and 342' to limit the lateral and vertical forces applied to the wear cap 26A. The inner upper surfaces 308 and 308' of each engagement tab opening 306 and 306' can be bent upward or tilted to converge toward each other, thereby helping to stabilize the wear cap 326.

[0121] refer to Figures 28-29 The wing guard 360 includes a rear portion 375, a front portion 376, an outer wear surface 378, and a portion located behind the nose tip 314 facing the lip 312. Figure 25 The relative inner surface 379 ( Figure 28), and a front wall 380 extending between an outer wear surface 378 and an opposing inner surface 379 at the front portion 376. The front portion 376 of the wing guard 360 may include a central section 381, wherein two wings 382, ​​382' extend laterally downward from opposite sides of the central section 381 to correspond to the shape of the lip 312 and / or the mounting base 318. The inner surface 379 of the wing guard 360 may include laterally spaced support surfaces 386, 386' ( Figure 28 The supporting surface corresponds to the supporting surfaces 383 and 383' on the lip 312. In the example shown, the supporting surface 388 is located on the inner side of the wing guard 360, and the inner side corresponds to the supporting surface 389 on the lip 312. Figure 25 Correspondingly. In other examples, such as the left wing guard, the support surface 389 may be located on the opposite side, but still on the inside of the wing guard or on one side within the bucket (not shown). The support surfaces 386, 386', 388 pressing against the support surfaces 383, 383', 389 on the bucket lip 312 provide a stable platform for the wing guard 360 to withstand horizontal and vertical loads. The areas surrounding the support surfaces 386, 386', 388 in the inner surface 379 and the bucket lip 312 may be non-supported areas. The central section 381 is shown extending further than the front wall 380, thus defining the central front wall 384, but other configurations are possible. The bifurcated front wall 380 adjacent to the central front wall 384 may be a supported or non-supported surface, because the wing guard 360 does not move during use as some of the exemplary wear caps discussed above.

[0122] The wing guard 360 includes retaining features. In the illustrated example, the retaining features are two engaging tabs 390, 390', which are laterally spaced from each other and extend from the front wall 380 and laterally from the central front wall 384 of the wing guard 360. The engaging tabs 390, 390' may also extend outward from the central front wall 384 in a forward direction, as other configurations besides the illustrated example are possible. For example, the retaining feature 342 may be a cavity for securing a protrusion on a mounting seat. The engaging tabs 390, 390' define upper surfaces 393, 393', lower surfaces 394, 394', front surfaces 395, 395', and two lateral side surfaces 396, 396', respectively, but other configurations are also possible. In the example shown, when a load is applied, the upper surfaces 393, 393' and the lower surfaces 394, 394' correspond to the support surfaces 313, 313' on the lip 312 and the support surfaces 308, 308' on the mounting base 318, but other configurations are possible. It should be understood that, based on the shape of the engaging tabs and the lip 312, the upper surfaces 393, 393', lower surfaces 394, 394', and lateral side surfaces 396, 396' of the engaging tabs 390, 390' can be support surfaces or non-support surfaces. In the example shown, the engaging tabs 390, 390' extend from the inner surface 379 such that the lower surface 394, 394' of each tab protrudes below the inner surface 379, but other configurations are possible. The lower surfaces 394, 394' are shown connected to each other via the central surface 397, but other configurations are possible. The positions of the engaging tabs 390, 390' relative to the inner surface 379 may vary depending on the shape of the lip 312 and the mounting base 318. In the example shown, the lower surfaces 394, 394' press against the corresponding support surfaces 313, 313' on the lip 312, as with the wear cap 326. The upper support surfaces 393, 393' and lower support surfaces 394, 394' of each of the engaging tabs 390, 390' are planar, but other configurations are possible. The upper support surfaces 393, 393' press against the corresponding surfaces 308, 308' on the mounting base 318, as discussed above regarding the wear cap 326 (see...). Figure 23 Similar to the bearing 326, the bearing surfaces 393, 393', 394, and 394' press against the bearing surfaces on the mounting base 318 and the lip 312, providing a stable platform for the wing guard 360 to withstand horizontal and / or vertical loads. Like the wear cap 326, the mounting base 318 must be removed before installing or removing the wing guard 326, but other configurations are also possible.

[0123] In the example shown, the wear-resistant assembly includes a single boss, but other configurations are possible. For example, the wear-resistant assembly may include a pair of bosses spaced laterally apart from each other. In such an example, the wear-resistant cap may include a pair of boss receiving cavities, each boss receiving cavity having a locking cavity.

[0124] The systems, apparatuses, and methods disclosed herein are examples of the practical application of the principles of this disclosure, and various other examples are also possible. Therefore, the scope of this disclosure is not limited to the details of the wear-resistant assemblies depicted herein and / or in the accompanying drawings. Various other examples and numerous modifications are possible without departing from the spirit and broader aspects of this disclosure as defined in the claims. Aspects of this disclosure have been described with reference to their illustrative examples. Upon reading this disclosure, those skilled in the art will conceive of many other examples, modifications, and variations within the scope and spirit of the appended claims. A feature in one example may be used in conjunction with a feature in another example. The combinations of the given examples and disclosed features are not intended to limit their use to a specific combination.

Claims

1. A first wear-resistant member for covering at least a portion of the base of earthmoving equipment, the first wear-resistant member comprising: Front, rear, outer surface, and opposite inner surface; as well as At least one engaging tab located at the front, the at least one engaging tab having a top support surface and a bottom support surface, the top support surface corresponding to a support surface on the second wear-resistant member, and the bottom support surface corresponding to a support surface on the base, for bearing support during the load-bearing use of the earthmoving equipment.

2. The first wear-resistant member according to claim 1, wherein the at least one engaging tab includes at least one side support surface corresponding to the support surface on the second wear-resistant member.

3. The first wear-resistant member according to any one of claims 1 to 2, wherein the front portion includes a front wall support surface, the front wall support surface being adjacent to the at least one engaging tab and corresponding to a support surface on the second wear-resistant member.

4. The first wear-resistant member according to any one of claims 1 to 3, wherein the at least one engaging tab is a first engaging tab, and the first wear-resistant member includes transversely opposing second engaging tabs.

5. The first wear-resistant member according to claim 4, wherein the first and second engaging tabs are inclined and converge toward each other.

6. The first wear-resistant member according to any one of claims 1 to 5, wherein the at least one engaging tab is located below the inner surface of the first wear-resistant member.

7. The first wear-resistant member according to any one of claims 1 to 6, wherein the rear portion includes a boss receiving cavity that opens toward the rear wall and the outer surface.

8. The first wear-resistant member according to claim 7, wherein the boss receiving cavity includes a bottom support surface and two side support surfaces corresponding to the support surface on the base.

9. The first wear-resistant member according to claim 7, wherein the boss receiving cavity includes a bottom support surface corresponding to the support surface on the base.

10. The first wear-resistant member according to claim 7, wherein the rear wall comprises two laterally opposed support surfaces corresponding to the support surfaces on the base.

11. The first wear-resistant member according to any one of claims 1 to 10, wherein the rear portion of the inner surface includes a lower rear support surface corresponding to the support surface on the base.

12. A wear-resistant cap for covering at least a portion of the base of earthmoving equipment, the wear-resistant cap comprising: Front, rear, outer surface, and opposite inner surface; A boss receiving cavity, which is located in the rear portion and opens toward the rear portion and the outer surface; as well as Engaging tabs, which are located at the front portion.

13. The wear-resistant cap according to claim 12, wherein the boss receiving cavity is located in the central section of the rear portion.

14. A wear-resistant assembly for earthmoving equipment, the wear-resistant assembly comprising: A support base having a boss projecting outward from the base, the boss including a first retaining feature located on the forward face of the boss; A first wear-resistant member having: a front portion, a rear portion, an outer surface, and an inner surface; and a second retaining feature located in the rear portion on the rear wall, the second retaining feature being arranged to receive the first retaining feature of the boss when the first wear-resistant member covers a portion of the support base; And a third retaining feature, which is located on the front portion of the first wear-resistant member; as well as The second wear-resistant component is located in front of the first wear-resistant component and has a fourth retaining component for fixing together with the third retaining feature of the first wear-resistant component, such that when the support base, the first wear-resistant component and the second wear-resistant component are all installed on the earthmoving equipment, the first wear-resistant component is held between the support base and the second wear-resistant component.

15. The wear-resistant assembly of claim 14, wherein the first and second retaining features are one of a tab or a cavity.

16. The wear-resistant assembly according to any one of claims 14 or 15, wherein the second retaining feature is a boss receiving cavity.

17. The wear-resistant assembly of claim 16, wherein the boss receiving cavity opens toward the outer surface and the rear wall.

18. The wear-resistant assembly of claim 16, wherein the boss receiving cavity opens toward the rear wall.

19. The wear-resistant assembly of claim 14, wherein the first retaining feature is a forward-projecting member, and the second retaining feature is a recess of the forward-projecting member corresponding to the boss.

20. The wear-resistant assembly of claim 14, wherein the third retaining feature is an engaging tab, and the fourth retaining feature is a recess corresponding to the engaging tab of the first wear-resistant member.

21. A wear-resistant assembly for earthmoving equipment, the wear-resistant assembly comprising: A support base having a boss projecting outward from the base, the boss including a locking cavity defining a first locking support surface; A wear-resistant cap having: a front portion, a rear portion, an outer surface, and an inner surface, the rear portion being arranged to engage the boss when the wear-resistant cap covers a portion of the support base; and a second locking support surface located at the rear portion of the wear-resistant cap; as well as A locking member is received within the locking cavity to engage the first and second locking support surfaces, thereby securing the wear-resistant cap downward to the support base.

22. The wear-resistant assembly of claim 21, wherein the boss is cast as part of the support base.

23. A wear-resistant cap for covering at least a portion of the base of earthmoving equipment, the wear-resistant cap comprising: Front, rear, outer surface, and opposite inner surface; A boss receiving cavity, which is located in the rear and extends generally from the inner surface toward the outer surface; as well as A locking cavity, located in the rear portion, extends from the outer surface and communicates with the boss receiving cavity, the locking cavity being arranged to receive a locking member for securing the wear-resistant cap to the base.

24. A wear-resistant assembly for earthmoving equipment, the wear-resistant assembly comprising: A support base having a boss protruding outward from the base; A wear-resistant cap having a front, a rear, an outer surface, and an inner surface, the wear-resistant cap having: a closed boss receiving cavity located in the rear, extending generally from the inner surface toward the outer surface, and arranged to receive the boss when the wear-resistant cap covers a portion of the support base; And a connecting tab that extends from the front portion; A locking member is arranged to interface between the wear-resistant cap and the boss to hold the wear-resistant cap to the support base; as well as A wear-resistant component located in front of the wear-resistant cap, the wear-resistant component having a rear portion having a rearward mounting cavity arranged to receive the nose end of the base; The engagement tab is inserted through the rear portion of the wear-resistant member and pivots downward to be mounted onto the support base.

25. A base, comprising: The mounting portion is for mounting a wear-resistant cap thereon. The mounting portion includes a boss protruding outward from the base. The boss includes a forward surface with forward protruding members, wherein the forward protruding members include a bottom support surface corresponding to a support surface on the wear-resistant cap and two side support surfaces.

26. A base, comprising: The mounting portion is for mounting a wear-resistant cap thereon. The mounting portion has a boss protruding outward from the base. The boss includes a locking receiving hole that extends at least partially laterally or axially through the boss and defines a locking support surface.

27. The base of claim 26, wherein the boss is cast as part of the base.

28. The base according to any one of claims 26 or 27, wherein the base is a mounting base.

29. The base according to any one of claims 26 to 28, wherein the locking receiving hole receives a locking support surface receiving pin to secure the wear-resistant cap to the base.

30. A bucket lip for attachment to a bucket, the bucket lip comprising: Multiple noses for engaging with corresponding multiple wear-resistant components, with at least two support surfaces located behind each nose on opposite sides, the at least two support surfaces corresponding to the lower surfaces of two engaging tabs of the wear-resistant component, such that when the wear-resistant component is installed, the lower surfaces of the two engaging tabs and the at least two support surfaces of the bucket lip press against each other during the bucket's load-bearing operation.

31. The lip according to claim 30, further comprising: A rear support surface, located behind and adjacent to the at least two support surfaces, the boss being located on the bucket lip and projecting inward in a direction inside the bucket.

32. A first wear-resistant component, comprising: front end; as well as The rear end has a mounting cavity that opens in the rear end of the first wear-resistant member to receive a support base. The mounting cavity has a front portion and a rear portion, the rear portion including a rear support surface located on the rear end, wherein the rear support surface presses against a complementary surface on the support base. The rear support surface includes a recess that opens toward the rear end for engaging with a tab support of the second wear-resistant member during horizontal and / or vertical loads.

33. The first wear-resistant component according to claim 32, wherein the first wear-resistant component is an intermediate mounting base, and the second wear-resistant component is a wear-resistant cap.

34. The first wear-resistant member according to any one of claims 32 or 33, wherein the first wear-resistant member is an intermediate mounting base, and the second wear-resistant member is a wing guard.

35. The first wear-resistant member according to any one of claims 32 to 34, wherein the rear support surface is a first rear support surface, and the rear portion includes a second rear support surface, the two rear support surfaces converging toward each other or diverging away from each other.

36. The first wear-resistant member according to any one of claims 32 to 35, wherein the recess faces the mounting cavity and the rear end opening.

37. The first wear-resistant member according to any one of claims 32 to 36, wherein the recess includes a side surface that presses against the complementary surface of the engaging tab during horizontal and / or vertical loads.

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