Wear assembly

Abstract

A wear assembly for earth working equipment includes a wear member including an outer surface, an opening for receiving a separable component, and a bore extending from the outer surface to the opening. A lock in the bore for securing the separable component to the wear member, wherein the lock includes a collar and a pin adjustable within the collar such that the pin can move inward to retain the separable component and outward to release the separable component. A magnet for securing the collar in the bore. The lock can pivot outward into the bore.

Description

[0001] Related applications

[0002] This application claims priority to U.S. Provisional Patent Application No. 63 / 176,065, filed April 16, 2021, entitled “Wear Assembly,” which is incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure relates to wear components for geotechnical equipment, and wear members, bases and / or locks of wear components. Background Technology

[0004] Geotechnical equipment, such as geotextile drums, is used for demolition, excavation, earthmoving, and other similarly demanding applications. To protect geotechnical equipment from wear and / or enhance its operation, wear parts can be attached. These wear parts may include tips, adapters, guards, etc. These wear parts are typically subjected to harsh conditions, heavy loads, and extreme abrasion. Therefore, wear parts wear down over time and usually must be replaced in the field, often under less than ideal conditions. Summary of the Invention

[0005] This disclosure relates to wear members for wear components of geotechnical equipment. The disclosure also includes wear members and locks as a single, integral component assembly; that is, the wear member comprises a wearable body and a lock engaged therewith. The disclosure also individually relates to locks, wear members (e.g., tips, adapters, guards, breaker hammers, slides, etc.), and bases.

[0006] In another example, the wear assembly includes a wear member having a mounting portion for engaging a base for mounting the wear member to a geotechnical device. The mounting portion has an inner surface for mating with the base and an opposing outer surface, a hole extending from the outer surface to the inner surface, and a lock integrally mounted from the inner surface into the hole. The lock is adjustable to move between a locked position, in which the lock is positioned to contact the base to hold the wear member to the device, and in the released position, the lock is positioned to release the base while the lock is held in the hole. The lock includes at least one magnet to engage the lock with the wear member.

[0007] In another example, the process of assembling a wear component includes: providing a wear member having a cavity defined by an inner surface having a locking recess; magnetically attaching a lock collar to the locking recess from the cavity of the wear member; and inserting a pin through a hole in the lock collar.

[0008] In another example, a lock for securing a wear component to a device may include: a collar having a threaded opening and a magnet; and a threaded pin for engaging the collar and a base to lock the wear component to the base. In the installed position, the magnet locks the collar to at least the inner surface of the wear component. The wear component and lock attached in the installed position can be shipped as a single wear assembly.

[0009] In another example, the wear assembly includes a wear member having: a mounting portion for engaging a base (for mounting the wear member to a geotechnical device), the mounting portion having an inner surface for mating with the base and an opposing outer surface; a hole extending from the outer surface to the inner surface; and a lock integrally mounted from the inner surface in the hole for moving between a locked position and a released position, in which the lock is positioned to contact the base to hold the wear member to the device, and in the released position, the lock is positioned to release the base while the lock is held in the hole. The lock includes a collar having at least one magnet to capture the lock on the inner surface of the wear member, and a movable pin passing through the collar.

[0010] In another example, the wear assembly includes a wear member having a mounting portion for engaging a base for mounting the wear member to a geotechnical device, and an outer surface. The mounting portion has an inner surface for mating with the base, wherein the inner surface defines a recess and a hole extending from the outer surface to the inner surface through the wear member. The recess has a front wall with a support protruding into the recess for locking engagement and outward swinging to engage the wear member. The recess includes a portion opposite the support for magnetically receiving a portion of the lock to hold the lock in the swinging position.

[0011] In another example, the process of assembling a wear component includes: providing a wear member having a cavity defined by an inner surface having a locking recess; pivoting a locking collar about one side of a collar, and magnetically attaching the locking collar to the locking recess from the cavity of the wear member on the other side of the collar; and inserting a pin through a hole in the locking collar.

[0012] In another example, the lock comprises: a collar having: a support surface at one end, wherein a magnet holds the lock to the inner surface of a wear member; an opening; and a recess at one end for receiving a support located on the inner surface of the wear member, the collar rotating about the support from the inner surface of the wear member to a mounting position to releasably hold the wear member to the device; and a pin for passing through the opening in the collar.

[0013] In another example, the wear assembly includes a wear member having a mounting portion for engaging a base for mounting the wear member to a geotechnical device, and an outer surface. The mounting portion of the wear member has an inner surface for mating with the base, and the inner surface defines a recess containing a hole extending through the wear member from the outer surface to the inner surface. This recess has a support member projecting into the recess to engage and outwardly swing a lock to engage the wear member and partially hold the lock to the wear member from the inner surface of the mounting portion.

[0014] In another example, the process of assembling a wear component includes: providing a wear member having a cavity defined by an inner surface having a locking recess; pivoting a lock collar outward about one side of the collar from the inner surface of the cavity; and inserting a pin through a hole in the lock collar.

[0015] In another example, the lock comprises: a collar having an opening and a recess at one end for receiving a support on a wear member, the collar being rotated about the support from an inner surface of the wear member to an installed position; and a pin for passing through the opening of the collar and releasably securing the wear member to the device.

[0016] In another example, the process of shipping a wear component includes: providing a wear member having a cavity defined by an inner surface having a locking recess; magnetically attaching a lock collar to the wear member from the inner surface of the cavity around at least one side of the collar; inserting a pin through a hole in the lock collar; and shipping the wear component.

[0017] In another example, the wear assembly includes a wear member having a mounting portion for engaging a base for mounting the wear member to a geotechnical device, and an outer surface. The mounting portion has an inner surface for mating with the base. The inner surface defines a hole including a recess. A lock with a pin and a collar is engaged and supported between the wear member and the base. The collar with a through hole is threaded and sized and shaped to allow the pin to pass through.

[0018] In another example, the base includes a nose sized and shaped to mate with a cavity of a wear member. The base has a keyhole defined by an inner surface. The inner surface is substantially circular and has two flat sections on one side for pin engagement of the lock.

[0019] In another example, the wear member includes a lock engagement recess on its inner surface having a keyhole that passes through the wear member and leads to both the interior and exterior of the wear member. The size and shape of the lock engagement recess are adapted to mate with a lock collar, wherein one side of the recess fully engages the collar, and the other side engages only a portion of one side of the collar.

[0020] In another example, a wear assembly for a geotechnical device includes a wear member and a lock for releasably securing the wear member to a base, wherein the lock is secured to the wear member by at least one magnet.

[0021] In another example, a wear assembly for a geotechnical device includes a wear member having a mounting cavity for receiving a base, and holes opening in the mounting cavity and the outer surface of the wear member. A collar is secured to the wear member by at least one magnet, such that a through-hole in the collar aligns with a hole in the wear member. A pin is movably secured within the through-hole for releasably holding the wear member to the base.

[0022] In another example, a wear assembly for a geotechnical device includes a wear member, a collar, and a pin. The wear member has a mounting cavity for receiving a base, and holes opening in the mounting cavity and the outer surface of the wear member. The collar includes a through-hole aligned with the hole in the wear member for movably receiving and securing the pin, such that the pin can releasably hold the wear member to the base. The collar and the wear member include complementary protrusions and recesses to allow the collar to pivot from the cavity into place. Optionally, at least one magnet may be included to hold the collar to the wear member.

[0023] In another example, the wear member for a geotechnical device has a mounting cavity for receiving a base, a hole opening in the mounting cavity and the outer surface of the wear member, and a protrusion or recess that cooperates with at least one component of a lock and pivots the component from the cavity into a mounting position in the hole. Optionally, at least one magnet may be included to hold a collar to the wear member.

[0024] In another example, a first component of a wear assembly for a geotechnical device includes a mounting cavity for receiving a second component, a hole opening in the mounting cavity and the outer surface of the first component, and a protrusion or recess cooperating with at least one component of a lock and pivoting the component from the mounting cavity into a mounting position in the hole. Optionally, at least one magnet may be included to hold a collar to the first component.

[0025] In another example, a wear assembly for geotechnical equipment includes a wear member having an outer surface, an opening for receiving a separable component, and a hole extending from the outer surface to the opening. A lock, located in the hole, is used to secure the separable component to the wear member. The lock includes a collar and a pin, the pin being adjustable within the collar such that it can move inward to hold the separable component and outward to release it. A magnet is used to secure the collar in the hole.

[0026] In one example, a wear assembly for a geotechnical device includes a wear member comprising: an outer surface; an opening for receiving a separable component; a hole extending from the outer surface to the opening, the hole having an outer portion adjacent to the outer surface and an inner portion forming a recess in the opening, wherein the recess surrounds the outer portion; and a pivot support on one side of the recess. A lock is located in the hole, wherein the lock comprises a collar and a pin, the pin being adjustable within the collar to move inward to retain the separable component and outward to release the separable component, the collar including a pivot configuration to engage the pivot support to pivot the collar into the recess.

[0027] In another example, a wear member for a geotechnical device includes: an outer surface; an opening for receiving a separable component; a hole extending from the outer surface to the opening, the hole having an outer portion adjacent to the outer surface and an inner portion forming a recess in the opening, wherein the recess surrounds the outer portion; and a pivot support on one side of the recess for facilitating the pivoting of a locking collar into the recess, so that the lock can retain the separable component in the opening.

[0028] In another example, a lock for securing a wear member for geotechnical applications to a separable component includes: a collar comprising a body, at least one protrusion extending from one side of the body, a threaded opening extending through the body, and at least one magnet for holding the collar to an inner surface of the wear member in an installed position; and a threaded pin in the threaded opening of the collar, the threaded pin being adjustable within the collar to move inward and outward from the separable component.

[0029] In another example, a lock for securing a wear member for geotechnical applications to a separable component comprises: a collar including a pivot configuration at one end of the collar for facilitating pivoting of the collar against an inner surface on the wear member to an available position; a threaded opening extending through the collar; and at least one magnet for securing the collar to the wear member; and

[0030] A threaded pin is provided, which is located in the threaded opening in the collar, and the threaded pin is adjustable inward and outward from the separable component.

[0031] A process for installing a lock in a wear member of a geotechnical device, the process comprising the steps of: 1) providing a wear member having an opening for receiving a separable component and a transverse hole intersecting the opening; 2) installing a collar having a through hole into the opening and abutting against the inner surface of the opening, such that the through hole is aligned with the transverse hole in the wear member; 3) providing a magnet on the wear member and / or the collar to secure the collar to the wear member; and 4) inserting a pin into the through hole in the collar, the pin being adjustable toward and away from the opening.

[0032] The advantages of the lock and wear assembly of this disclosure will be more readily understood after considering the accompanying drawings and detailed embodiments. Attached Figure Description

[0033] Figure 1 This is a perspective view of a wear assembly including a wear member, a base, and a lock, according to this disclosure.

[0034] Figure 2 yes Figure 1 A partial exploded view of the worn component.

[0035] Figure 3 yes Figure 1 A partial perspective view of the base.

[0036] Figure 4 yes Figure 1 A perspective view of the lock.

[0037] Figure 5 yes Figure 1 The exploded view of the lock.

[0038] Figure 6 yes Figure 1 A top view of the lock.

[0039] Figure 7 yes Figure 1 A partial cross-sectional view of the interior of the wear component, in which the lock is installed before being mounted to the base.

[0040] Figure 8 It is along Figure 1 The cross-sectional view taken from line 8-8 shows the lock in the released position.

[0041] Figure 9 It is along Figure 1 The image shows a partial cross-sectional view taken from line 8-8, where the lock is in the locked position.

[0042] Figure 10 This is a partial exploded view of a second wear assembly including a wear member and a lock, according to this disclosure.

[0043] Figure 11 yes Figure 10 A perspective view of the lock.

[0044] Figure 12 yes Figure 10 The exploded view of the lock.

[0045] Figure 13 yes Figure 10 A top view of the lock.

[0046] Figure 14 yes Figure 10 A partial cross-sectional view of the interior of the wear component, wherein the lock is in place during the installation process before the wear component is installed onto the base.

[0047] Figure 15 Before the lock is installed Figure 10 Partial exploded view of the worn components and lock.

[0048] Figure 16 This is a cross-sectional view of the lock in the released position.

[0049] Figure 17 This is a cross-sectional view of the lock in the locked position.

[0050] Figure 18 It is a rigging assembly according to this disclosure.

[0051] Figure 19 yes Figure 18 A partially exploded view of the rigging components.

[0052] Figure 20 yes Figure 18 A perspective view of the lock.

[0053] Figure 21 yes Figure 18 The exploded view of the lock.

[0054] Figure 22 yes Figure 18 A side view of the lock.

[0055] Figure 23 Before installing the collar Figure 18 A partial cross-sectional view of the interior of a worn component.

[0056] Figure 24 yes Figure 18 A partial cross-sectional view of the interior of the hole in the wear component.

[0057] Figure 25 It is equipped with a collar. Figure 24 A partial perspective view of the interior of the hole.

[0058] Figure 26 It is along Figure 18 The cross-sectional view taken from line 26-26 shows the lock in the locked position. Detailed Implementation

[0059] This disclosure relates to wear components for geotechnical equipment. While the disclosure herein includes examples of securing a ground engagement tool (shown as a tip in this example) to an adapter, wear components according to this disclosure can be used to secure other types of wear parts, such as intermediate adapters, guards, chutes, picks, hammers, rigging components, etc. Similarly, although excavation buckets are disclosed herein as geotechnical equipment, other types of geotechnical equipment, such as excavation cutters, shredders, rigging equipment, roller crushers, chutes, truck bodies, etc., can be used. For ease of discussion, relative terms such as front, back, top, bottom, etc., are used. The terms front or forward are generally used to indicate the normal direction of travel during use (e.g., during excavation), and top or top are generally used as a reference for the surface that material passes over, for example, when it is collected into the bucket. However, it is recognized that wear components can be oriented in various ways and moved in various directions during use in the operation of various geotechnical machines.

[0060] exist Figures 1 to 2 In the illustrated example, wear assembly 10 comprises two separate components and a lock, such as wear member 12, base or separable component 58, and lock 14. Alternatively, a combination of wear member 12 and lock 14 can be considered wear assembly 10, which may optionally be sold, shipped, stored, and / or installed as a single unit. Wear member 12 is shown as a pointed tip having a working portion 12A that converges to a narrowed front end 12B to penetrate the ground during excavation, and a mounting portion 12C having a rearwardly opening 19 defined by an inner surface 21 for receiving base 58. Working portion 12A is in front of cavity 19, and mounting portion 12C is behind working portion 12A in the longitudinal direction A.

[0061] The base 58 may be an integral part of a geotechnical device (e.g., the excavation edge of a bucket) or a separate component attached to such a device (e.g., an adapter) by means of welding or mechanical attachment. The cavity 19 and the base 58 received therein are complementary in shape to properly support the wear member 12 during use. In this embodiment, the base 58 is the nose of an adapter or cast lip. In the example shown, the cavity and nose are generally as described in U.S. Patent 7,882,649 (incorporated herein by reference), but a wide range of cavity and nose configurations may be used. The nose 58 includes an opening 60 to receive the tip 27 of the pin 22 to secure the wear member to the base. Figure 3 ).

[0062] Lock 14 is a connection arrangement used to secure two separable components during geotechnical operations. See also Figures 4 to 9 The lock 14 includes a mounting member or collar 26 and a retaining member or pin 22. The lock 14 is received in a hole 17 that extends through a wall of the wear member and communicates with a mounting cavity 19. In the illustrated embodiment, the hole 17 extends through a side wall of the tip 12, but it may extend through other walls. By way of example only, the hole 17 may extend through another side wall or top wall of the tip 12. Multiple holes 17 (e.g., in each side wall) may be used to secure multiple locks to hold the wear member 12 to a base 58. In other wear members, the hole 17 may extend through the bottom, top, or other walls of the wear member. In wear members having a handle (not shown) instead of a mounting cavity, the hole 17 extends through a base having a cavity for receiving the handle. In this arrangement, a hole 60 is formed in the handle. In the illustrated embodiment, the hole 17 includes an inner portion or recess 16 leading into the cavity 19, and an outer portion or channel 18 opening in the outer surface of the wear member 12. In this example, the channel 18 is narrow to define a shoulder or recessed surface 35 to prevent the collar 26 from moving outward, but other arrangements for securing the collar 26 (e.g., protrusions, fasteners, etc.) can be used. Also in the example shown, the recess 16 and the channel 18 each narrow in the outward direction (e.g., for manufacturing purposes), but they may have other shapes.

[0063] The collar 26 has a body 25 that mates in a recess or lock receiving area 16 of the wear member 12 and includes a hole or opening 26A. The hole shown includes a thread 26B for receiving a pin 22 with mating threads 22B, but other unthreaded configurations for securing and moving the pin relative to the collar are possible (e.g., pry latches, hydraulic pressure, etc.). In the example shown, the body 25 includes an inner portion 31 received in the recess 16 and an outer portion 30 received in a channel 18. The inner portion 31 is elongated to be larger than the channel 18, thereby preventing outward movement during use. The outer portion 30 is smaller to receive into the channel 18 to ensure alignment of the hole 26A with the hole 17 and / or to provide a longer thread travel. However, other collar shapes are possible.

[0064] The collar 26 includes at least one magnet 11 to secure the collar 26 and / or the lock 14 in the recess 16. In the example shown, two magnets are located near each corresponding end 13, 13' on the outer surface 30 of the collar 26, but other locations and numbers of magnets 11 are possible. Each magnet 11 may be mounted into an end-open hole 11A (a blind hole in this example) or otherwise secured to the collar 26. The magnet 11 and the hole 11A are shown as cylindrical, but other shapes are possible. The magnet may alternatively be secured to a wear member in a hole 17. During the shipment, storage, and / or installation of the wear member 12, the magnet 11 may hold the collar 26 in place within the wear member 12 and hold the lock 14 in place when the pin 22 is installed. This arrangement allows the wear member 12 to be mounted on the base 58 without first moving or removing the lock 14 from the wear member 12. In some examples, the lock 14 is preferably held to the wear member 12 in a first or released position, wherein the inner end 27 of the pin 22 is located within the collar 26, so that the lock 14 does not obstruct the installation of the wear member 12 onto the base 58. Figure 1 The inner end 27 can extend inward from the collar 26 in the release position, provided it is removed from the base during installation. Figure 8 ).

[0065] Pin 22 may be similar to the pin disclosed in U.S. Application No. 16 / 671,096, which is incorporated herein by reference in its entirety. Pin 22 includes a tool receiving configuration 22C for rotating pin 22. In the example shown, configuration 22C includes a hole having a facet 22D in head 22A for receiving, for example, a hex wrench tool. Pin 22 may include a distal tapered shank 24 extending away from the head having threads 22B. In this example, an external seal 28 is held in a recess 28A inside the head 22A on pin 22. Figure 5The outer seal 28 and the inner seal 29 provide a closed threaded space for the assembled lock. The seals may be reversed, such that the inner seal is on the pin and the outer seal is on the collar. Alternatively, in alternative examples, seals 28 and 29 may be positioned on either the collar or the pin. In other examples, one or both of seals 28 and 29 may be omitted.

[0066] In a preferred example, the threaded pin 22 includes an optional latch or stop 45 biased to protrude beyond the surrounding threads 22B. A corresponding external recess or receptacle 46 is formed in the threads 26B of the collar 26 to receive the stop 45, such that when the latch stop 45 is aligned and inserted with the external recess, the threaded pin 22 latches in a specific position relative to the collar 26. Preferably, the latch stop 45 is located at the beginning of the threads 22B on the threaded pin 22, closer to the pin end 27 than to the pin head 22A. Preferably, the latch stop 45 may be formed of sheet steel, held in place within a reservoir 52 within the pin 22, and resiliently fixed to an elastomer 50. The elastomer 52 may, for example, be molded around the latch stop 45 such that the elastomer 52 hardens in place and bonds to the latch stop 45. Alternatively, the latch 45 may be located in the collar 26, while the recess 46 is located in the pin 22.

[0067] Using a single, one-piece wear member 12 and lock 14 reduces the number of parts to be held in stock. This construction reduces inventory and storage needs, prevents locks from falling off during installation (which can be particularly problematic at night), ensures that the proper lock is always in use, and facilitates the installation of the wear member. However, pin 22 can be removed at any time if needed. The collar 26 is preferably a single unit (one-piece or assembled into a unit), and for strength and simplicity, a one-piece construction is preferred. Similarly, for strength and simplicity, pin 22 is preferably a single unit of a single-piece construction. However, collars and / or pins can be formed from multiple pieces. While collars and pins are preferably assembled into the wear member 12 during manufacturing, collars 26 and pins 22 can be installed at other times. For example, collar 26, with or without pin 22, can be installed at the work site before being installed to the base. If collar 26 is installed without pin 22, pin 22 can be inserted from the outside to secure the wear member 12 to the base 58.

[0068] Recess 16 is an opening in the inner surface 21 of the wear member 12 and is configured to receive and engage the collar 26 of the lock 14, i.e., the collar engages from the cavity 19 into the hole 17. Recess 16 surrounds the channel 18 to receive the inner portion 30 of the collar 26 of the pin 22 and the lock 14. Recess 16 and / or channel 18 may be an elongated circular shape defined by the inner surfaces 33, 34, but other shapes are possible.

[0069] refer to Figures 7 to 9To install the lock 14, the collar 26 is inserted from the cavity 19 into the recess 16 such that the magnet 11 on the collar engages with the recessed surface 35 in the recess 16 on either side of the hole 17, and the outer portion 30 is received within the hole 17. An alternative position for the magnet 11 is shown in dashed lines in the recessed surface 35. The magnet 11 may be flush with the recessed surface 35. The surface defining the recess 16 resists rotation of the collar 26 during the installation and / or adjustment of the pin 22. The recess 16 also includes a front surface 33 and rear surfaces 34, 35 supporting the collar 26. In the example shown, the rear surface 34 has a smaller inward extension than the front surface to accommodate expansion of the nose 58, but other arrangements are possible. Furthermore, the rear surface 34 and / or the front surface 33 provide a resistant engagement against the cantilever and other loads applied to the pin 22 during use. Although the magnets 11 are used to always hold the collar 26 in the recess 16, they are primarily used to hold the collar during the installation of the pin 22 and during the transport, storage, and / or installation of the wear member 12. When the wear member 12 is assembled on the base, the opposition of the nose 58 to the collar 26 prevents the collar 26 from moving out of the recess 16 during use.

[0070] Pin 22 can be mounted from outside the wear member 12 into collar 26 such that pin end 27 is front end 27 and pin thread 22B engages collar thread 26B, but can also be connected to collar 26 and mounted into hole 17 by means of collar 26. Front end 27 is preferably unthreaded to receive into hole 60 in side 56 of nose 58. Engagement of latch stop 45 in external recess 46 holds threaded pin 22 relative to collar 26 in release position, which holds pin 22 outside cavity 19 (or at least outside hole 60, while having sufficient clearance on nose 58), allowing wear member 12 to be mounted on (and / or removed from) nose 58. Figure 8 Pin 22 is preferably shipped and stored in the release position, making the wear member 12 ready for installation, while the collar 26 is captured in the recess 16, but this is not necessary. In other examples, the pin may not include a latch stop and is only used to lock the wear member 12 to the base.

[0071] Applying further torque to pin 22 causes the latch stop 45 to be expelled from the outer recess 46. An inner recess or groove is optionally formed at the inner end of the thread of the collar 26 and positions the lock in the locked position. Figure 9 When fully inserted, the front end 27 engages in the hole 60 to secure the wear member 12 to the base 58. Figure 9 ). refer to Figure 3The base opening 60 may include two flat sections or flat portions 55A, 55B surrounding at least a portion of the depth of the hole 60. Flat portions 55A, 55B are shown located on the front end of the inner wall of the opening 60 to provide two contact points for the front end 27 of the pin 22, but other locations are also possible. Flat portions 55A, 55B can reduce stress on the pin 22 and reduce lock hole wear caused by lock engagement during use and removal. However, sections with curved or other non-linear shapes may be used.

[0072] To remove the worn member 12 from the base 58, a torque-applying tool (e.g., a torque wrench) can be used to loosen the pin 22 from the collar 26 to release the pin 22. Although the pin 22 can be removed from the collar 26, it is only necessary to return the pin to the released position without completely removing the pin 22. The worn member 12 can then be removed from the nose 58. The torque applied to loosening the pin 22 can apply a large torsional load to the collar 26, which is resisted by the shelf surface 33.

[0073] The use of the lock according to this disclosure offers numerous benefits: (i) the lock can be integrated into the wear member, allowing it to be shipped and stored in a ready-to-install location, thus reducing inventory and facilitating installation; (ii) the lock can be easily used with only common drive tools (such as hexagonal tools); (iii) the lock can be operated securely without a hammer; (iv) the lock is easily accessible for tooling for easy installation and / or removal; (v) the lock provides visual and / or tactile confirmation of proper installation; (vi) new locks can be provided for each wear member to improve reliability and / or ease of operation; (vii) the lock has simple, intuitive operation and is easy to use; (viii) the lock can have an integrated system built around a simple castable feature, wherein the integration supports high loads, requires no special tools or adhesives, and forms a permanent component; (ix) a magnet holds the collar to the wear member in a quick and easy-to-install location; and / or (x) the lock is located inside the wear member to protect it from wear and reduce the risk of lock ejection.

[0074] exist Figure 10 In the example shown, wear assembly 110 includes wear member 112, base 158, and lock 114. Wear member 112 and base 158 are substantially similar to wear member 12 and base 58, except for some differences that will be discussed further below.

[0075] In the example shown, the wear member 112 is shown as a pointed tip having a working portion 112A in the form of a narrowed front end 112B to penetrate the ground during excavation, and a mounting portion 112C having a rearward opening 119 defined by an inner surface 121 for receiving a base 158.

[0076] The wear member 112 includes a cavity 119 generally shaped to receive the base 158 therein, and includes an opening 160 whose size and shape are set to engage the inner end 127 of the engagement pin 122 to secure the wear member 112 to the base 158. The opening 160 may optionally include two linear segments as discussed above.

[0077] Lock 114 is a connection arrangement used to secure two separable components during geotechnical operations. (Reference) Figures 11 to 13 Lock 114 is mounted in hole 117 in wear member 112. Hole 117 includes a recess or inner portion 116 and a channel or outer portion 118. Lock 114 includes mounting member or collar 126 and retaining member or pin 122. Pin 122 is substantially similar to pin 22. Collar 126 has a body 125 that mates in the recess 116 of wear member 112 and includes hole or opening 126A. In the example shown, hole 126A includes thread 126B for receiving pin 122 with mating thread 122B, but other configurations are possible.

[0078] The collar 126 includes at least one magnet 111 to secure the collar 126 and / or the lock 114 within the recess 116. In the example shown, the magnet 111 is located near the end 113 of the body 125 on the top surface 172 of the collar 126, but other locations are also possible. Alternatively, the magnet may be secured to a wear member 112 in the hole 117. The body 125 includes a connecting structure or anchoring feature 162 configured to cooperate with a complementary support feature 164 formed in the recess 116. Figure 14 Anchor 162 and support 164 are configured such that lock 114 can be positioned by the interaction of anchor 162 from within the interior 121 of wear member 112 with complementary support 164, and then lock 114 can swing substantially outward toward recess 116 about locking rotation axis B and into it. Figure 15 Anchor 162 and support 164 are preferably configured to facilitate rotation of lock 114 about axis B. For example, anchor 162 corresponds to a slot that interacts with support 164, which corresponds to a protrusion or ridge formed in the proximal sidewall of lock recess 116 (see...). Figure 14 The protrusion 164 may include an opening 164A, such that the anchor 162 engages only on the top and bottom of the support 164. Figure 15 It may include an opening 164A to reduce stress during manufacturing. The slot 162 may alternatively be formed on the ridge of the wear member and the lock.

[0079] The presence of the support 164 and the magnet 111 serves to accommodate the collar 126 or lock 114 in a first or released position, such that the lock 114 does not obstruct the mounting of the wear member 112 onto the base 158. The magnet 111, in combination with the support 164, secures the lock 114 in place within the wear member 112, thereby allowing the transport and storage of the wear member 112, and additionally allowing the wear member 112 to be mounted onto the appropriate base 158, preferably without first moving or removing the lock 114 (e.g., pin 122 or sleeve 126) from the aperture 117. However, while the opposition of the base to the collar prevents the collar from dislodging from the recess 116 during use, it is not necessary for the base 158 to secure the lock 114 in a first position. Any outward movement of the lock 114 is resisted by the support 164 in the slot 162 and by the top surface 172 on the end 113 of the lock 114, which abuts against the resisting surface 135. Figure 16 ).

[0080] Body 125 includes a bottom surface 174 with a similar shape to the top surface 172. In one example, the top surface 172 is longer than the bottom surface 174 in the longitudinal dimension. The top surface 172 is adjacent to the proximal surface 176 and the opposing distal surface 177. The slot 162 defines a curved surface 178 adjacent to the lower side surface 180. Figure 12 In the example shown, the lower side surface 180 is not engaged by the wear member 112 or the base 158 in the shipping and locking positions. Figures 16 to 17 In other examples, the bottom surface 174 may engage the base 158. The body 125 includes a lateral side surface 179 and two sets of converging surfaces 181-184 that converge toward the ends 113, 113' of the lock 114. In the example shown, the converging surfaces 182, 183 converge toward the proximal end 113 and are dimensionally longer than the converging surfaces 181, 184 that converge toward the distal end 113', but other configurations are possible. For example, the converging surfaces 181, 184 may be longer. Additionally, one or none of the surfaces 181-184 may converge.

[0081] The recess 116 is an opening in the inner surface 121 of the wear member 112 and is configured to receive and cooperate with the collar 126 of the lock 114. Figure 15Lock 114 can be physically engaged with wear member 112 in the released position. Recess 116 surrounds channel 118 to receive the inner portion of collar 126 of lock 114. Hole 117 extends through the wall of wear member 112 to provide access to external and inner surface 121. Channel 118 can be an elongated circular shape defined by inner surface 118, but other shapes are possible. Recess 116 includes a portion 133 sized and shaped to mate with body 125 of collar 126. Recess portion 133 includes upper surface 187 and lower surface 188, converging surfaces 190, 193 tapering rearward, and converging surfaces 191, 192 tapering forward. Upper surface 187 and lower surface 188 and converging surfaces 190-193 act as anti-rotation surfaces when the pin rotates within the through hole in the collar, but other arrangements are possible. The converging surfaces 190-193 reduce the size of the hole 117 and contribute to point strength and manufacturability.

[0082] refer to Figure 14 To install the lock 114, a collar 126 is inserted from the cavity 119 of the wear member 112 into the recess 116. The collar 126 rotates outward about the support 164 (along axis B), and the magnet 111 magnetically engages the recessed surface 135 in the recess 116 on the proximal side 113 of the lock 114, with the outer portion of the lock 114 received within the channel 118. The recess 116 includes a shelf surface 133, in which one end 113 of the collar 126 engages. In the illustrated embodiment, the lock 114 and the magnet 111 are positioned against the shoulder 135. However, the magnet may be positioned against other surfaces of the wear member. Furthermore, the cooperation of the shelf surface 133, the shoulder 135, and the ridge 164 provides a resistant connection against the cantilever and other loads applied to the pin 122 during use. When the wear member 112 is assembled on the base 158, the opposition between the base 158 and the collar 126 prevents the collar 126 from shifting out of the recess 116 during use. The pin 122 then screws into the collar 126. The collar and pin can be mounted as a unit and have an adjustment for the hole 117 to provide clearance for the pin when the collar rotates into the recess 116.

[0083] refer to Figures 16 to 17 The lock 114 has two positions as described above. The pin 122 is mounted from outside the wear member 112 into the collar 126, such that the front end 127 and the pin thread 122B engage the collar thread 126B. In the released or shipping position, the lock 114 is also restrained by the ridge 164 received in the slot 162 and the magnet 111 attached to the shelf surface 135 to prevent outward movement. Figure 16If magnet 111 fails, pin 122 will prevent collar 126 from rotating outward. Ridge 164 in slot 162 and edge walls 133, 135, 187, 188, 190-193 of hole 117, adjacent to lock 114, resist torsion of lock 114 in the installed position. Further torsion moves pin 122 to the locked position, where only a portion of front end 127 engages hole 160 in base 158 to hold wear member 112 to base 158. Figure 17 ).

[0084] To remove the worn component 112, a torque-applying tool (e.g., a torque wrench) can be used to release pin 122, thereby unscrewing pin 122 from collar 126 back to the release or shipping position. Figure 16 The pin 122 remains in the hole 117. Although the pin 122 can be removed from the collar 126, it is only necessary to return the pin to the released position without completely removing the pin 122. The worn member 112 can then be removed from the nose 158.

[0085] exist Figures 18 to 26 The illustrated example shows a rigging assembly 210 comprising a wear member 212, a rigging pin or separable component 258, and a lock 214. In the illustrated example, the wear member 212 is shown as a Y-connector with arms 212A, 212B, each arm having a corresponding opening 219A, 219B. Each of the openings 219A, 219B is defined by inner surfaces 221A, 221B for receiving the rigging pin 258. In this example, the rigging pin 258 has a cylindrical body 258A and a head 258B, the head having a flat portion 258C or other non-circular configuration. Pins with other configurations may be used.

[0086] The base end 212C is located on the opposite end of the Y connector 212. The rigging component 212 is typically part of a rigging assembly and is secured to other components (e.g., other rigging components, chains, barrel components, etc.) via rigging pins 258 (i.e., between arms 212A, 212B) and via an opening in the base end 212C. Although a Y connector rigging component is used as an example, a lock 214 can be used to secure the pin to other types of rigging components.

[0087] Each opening 219A, 219B may be generally shaped to receive a rigging pin 258. A hole 217 extends through arm 212A to intersect with opening 219A. Hole 217 may also or alternatively be located in arm 212B (not shown). Hole 217 includes an internal portion or recess 217' leading to the interior 221 of opening 219A. Recess 217' is configured to receive and cooperate with the body 225 of collar 226 of lock 214. The external portion of hole 217 may be an elongated circular shape defined by inner surface 218, but other shapes are possible. The size and shape of the external portion or channel 216 of hole 217 are set to mate with at least the external portion 231 of collar 226 of lock. Figure 25 Recess 217' may include opposing grooves 287, 288, which may include side surfaces 290-293. Side surfaces 290-293 may act as anti-rotation surfaces when pin 222 rotates within through hole 226A in collar 226, but other arrangements are possible. Figures 24 to 25 The hole 217 may also include a protrusion 232 communicating with the channel 218 and the recess 217'. Figure 24 ).

[0088] The rigging wear member 212 is a connection arrangement used to secure two separable components during geotechnical operations. A lock 214 secures the rigging pin 258 in the wear member 212. See also... Figures 20 to 22 Lock 214 includes a mounting member or collar 226 and a retaining member or pin 222. Pin 222 may be substantially similar to pin 22. Pin 222 is shown as having a shank 224 that is longer than pin 22. Longer pins, such as pin 222, may optionally be used to secure wear members in the form of ground engagement tools (e.g., tips) to a base (e.g., adapter nose). In this arrangement, the pin may extend through the base and engage the two sidewalls of the tip. Alternatively, shorter pins may be used in rigging components. Collar 226 is mounted in a hole 217 and a recess 217' prior to pin 222. In this example, the collar will be mounted through an opening at the outer end in arm 212A, which is formed by an extension of opening 219A to the outer sidewall of arm 212A. Pin 222 of lock 214 passes through hole 217 and enters an opening 219A ( Figure 26 ).

[0089] The collar 226 has a body 225 that engages in a lock-receiving recess 217' in the arm 212A of the wear member 212 and extends into a channel 218. The body 225 may be cylindrical in shape and include a hole 226A. In the example shown, the hole 226A includes a thread 226B for receiving a pin 222 with mating threads 222B, but other configurations are possible. The hole shown includes a thread 226B for receiving a pin 222 with mating threads 222B, but other unthreaded configurations for securing and moving the pin relative to the collar are possible (e.g., pry latches, hydraulic pressure, etc.).

[0090] In the example shown, body 225 includes an inner portion 230 received in recess 217' and an outer portion 231 received in bore 217. The inner portion 230 is elongated to be larger than bore 217, thereby preventing outward movement during use. The inner portion 230 is smaller for receiving in bore 217 to ensure alignment of bore 226A with bore 217 and / or to provide a longer thread travel. However, other collar shapes are possible.

[0091] The body 225 may also be defined by at least two protrusions 215, 215' extending outward from the cylindrical portion of the body 225. The size and shape of the protrusions 215, 215' may be adapted to fit within recesses 287, 288 in the lock receiving region 217'. One of the protrusions 215, 215' may have a different length or shape than the other. In the example shown, a third protrusion 229 may be located in a protrusion 232 extending from the hole 217 into the lock receiving region 217'.

[0092] The collar 226 includes at least one magnet 211 to secure the collar 226 and thus the lock 214 in the recess 217'. In the example shown, two magnets 211 are located near each corresponding end 213, 213' on the outer surface 30 of the two protrusions 215, 215' of the collar 226, but other positions and numbers of magnets 211 are also possible. The magnets 211 are shown at different heights, such that one magnet 211 is higher than the other, but other configurations are possible. The magnets 211 are shown to be of different sizes, but they may also be the same. Each magnet 211 may be mounted into an end-open hole 211A or otherwise secured to the collar 226. The magnets 211 and the hole 211A are similar to the magnets 11 and the hole 11A discussed above. The magnets 211 can hold the collar 226 in place during the transport, storage, and / or installation of the wear member 212. This arrangement allows the rigging pin 258 to be mounted on the wear member 212 without requiring the lock 214 to be moved or removed from the wear member 212 first, depending on the length of the shank 224 on the pin 222. In the example shown, the lock 214 is positioned only in the locked or unlocked position. Figure 26The pin end 227 can extend inward from the collar 226 in the released position, provided that the pin 222 does not extend far enough during installation to engage or obstruct the rigging pin 258 (not shown).

[0093] The body 225 includes a bottom surface 274 with a similar shape to the top surface 272. In other examples, the bottom surface 274 may engage the rigging pin 258. The protrusions 215, 215' include side surfaces 281-284. These side surfaces may converge toward the ends 213, 213' of the lock 214. In the example shown, the converging surfaces 283, 284 converge toward the proximal end 215 and are longer in dimension than the side surfaces 281, 282, but other configurations are possible (divergent, planar, curved, etc.).

[0094] refer to Figure 23 To install lock 214, collar 226 is inserted from the interior 221 of wear member 212 into recess 217'. Collar 226 slides into hole 217 until it reaches recessed surface 289 in magnetically engaged grooves 287, 288 of magnet 211. Furthermore, the cooperation of the side surfaces of magnet 211 and grooves 287, 288 provides a resistant connection against cantilever and other loads applied to pin 222 during use. After collar installation, rigging pin 258 is inserted into rigging member 212. Collar can be installed at manufacturing, in stock, or in the field. When rigging pin 258 is installed on wear member 212, the opposition of rigging pin 258 and collar 226 prevents collar 226 from dislodging from recess 217' during use. Pin 222 is then screwed into collar 226. Figure 26 ).

Claims

1. A wear component for geotechnical equipment, comprising: A wear member for geotechnical equipment, the wear member comprising: an outer surface; an opening defined by an inner surface for receiving a separable component; a hole extending from the outer surface to the opening, the hole having an outer portion adjacent to the outer surface and an inner portion defined in the inner surface to form a recess in the opening, wherein the inner portion extends beyond the outer portion to define a shoulder; and a pivot support on the side of the recess opposite to the shoulder; and A lock in the hole, wherein the lock comprises a collar and a pin, the pin being adjustable within the collar to move inward to retain the separable component in the opening and to move outward to release the separable component, the collar comprising a pivot configuration to engage the pivot support to pivot the collar toward the outer surface into the recess before receiving the separable component into the opening, such that the collar is disposed adjacent to the shoulder, the shoulder preventing the lock from moving outward.

2. The wear assembly of claim 1, wherein the wear member is a ground engagement tool, and the separable component is a nose for mounting the wear member to the excavation edge of a geotechnical device.

3. The wear assembly of claim 1, wherein the wear member is a rigging component and the separable component is a rigging pin.

4. The wear assembly according to any one of claims 1 to 3, wherein the magnet is fixed to the wear member.

5. The wear assembly according to any one of claims 1 to 3, wherein the magnet is fixed to the collar.

6. A wear component for geotechnical equipment, comprising: outer surface, An opening, defined by an inner surface, for receiving a separable component. A hole extending from the outer surface to the opening, the hole having an outer portion adjacent to the outer surface and an inner portion defined in the inner surface to form a recess in the opening, the recess receiving a lock to hold the wear member to the separable component, wherein the inner portion extends beyond the outer portion to define a shoulder in the recess that prevents the lock's collar from moving outward, and A pivot support is provided on the side of the recess opposite to the shoulder to facilitate pivoting of the collar toward the outer surface into the recess, so that the lock can hold the wear member on the separable component in the opening.

7. The wear member of claim 6, wherein the recess includes a magnet opposite to the pivot support.

8. The wear member according to claim 6, wherein the wear member is a rigging component.

9. The wear member according to claim 6, wherein the wear member is a ground engagement tool.

10. The wear member according to any one of claims 6 to 9, wherein the pivot support is a protrusion to receive an opening on the collar.

11. The wear member according to any one of claims 6 to 9, wherein the pivot support interacts with the end of the collar.

12. A lock for securing a wear member for geotechnical applications to a separable component, the lock comprising: A collar comprising a pivot configuration at one end of the collar for facilitating pivoting of the collar against an inner surface of the wear member toward an outer surface of the wear member to an available position, a threaded opening extending through the collar, and at least one magnet for securing the collar to the wear member before receiving the separable component into the wear member; A threaded pin is provided, which is located in the threaded opening in the collar, and the threaded pin is adjustable inward and outward from the separable component.

13. The lock of claim 12, wherein the collar comprises a body and at least one protrusion, and the magnet is positioned within the protrusion.

14. The lock according to any one of claims 12 to 13, wherein the pin is adjustable between a locked position in which the threaded pin holds the separable component in the wear member and a released position in which the threaded pin releases the separable component.

15. The lock according to claim 12, wherein the pivot configuration is a recess that mates with a protrusion in the wear member.

16. The lock of claim 15, wherein the protrusion in the wear member comprises a cut-out portion.

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