WO2011156834A1 - Élément de protection de talon et moyen de fixation mécanique - Google Patents

Élément de protection de talon et moyen de fixation mécanique Download PDF

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Publication number
WO2011156834A1
WO2011156834A1 PCT/AU2011/000655 AU2011000655W WO2011156834A1 WO 2011156834 A1 WO2011156834 A1 WO 2011156834A1 AU 2011000655 W AU2011000655 W AU 2011000655W WO 2011156834 A1 WO2011156834 A1 WO 2011156834A1
Authority
WO
WIPO (PCT)
Prior art keywords
wear member
wear
body portion
lock
receiver
Prior art date
Application number
PCT/AU2011/000655
Other languages
English (en)
Inventor
Bradley John Dallard
Bjorn Marten Karlsson
Original Assignee
Sandvik Intellectual Property Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2010902598A external-priority patent/AU2010902598A0/en
Application filed by Sandvik Intellectual Property Ab filed Critical Sandvik Intellectual Property Ab
Publication of WO2011156834A1 publication Critical patent/WO2011156834A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2858—Teeth characterised by shape
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2825—Mountings therefor using adapters
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2883—Wear elements for buckets or implements in general

Definitions

  • the present invention relates to the attachment of wear members such as heel shrouds to surfaces subject to abrasive wear, such as earth moving buckets.
  • Buckets for earth moving equipment are subject to a high degree of abrasive wear. This wear is particularly pronounced at a leading edge of the bucket, where ground engaging tools such as adaptors and teeth are used to penetrate matter being dug. It is also found at bucket corners and heels, although wear in these areas is not as pronounced as at the leading edge.
  • wear members such as teeth, adaptors, wear strips and heel shrouds have been welded into place on a bucket.
  • known methods of mechanically attaching ground engaging tools to a bucket leading edge involve providing the ground engaging tool with a channel which locates about the bucket leading edge, and then clamping or bolting the ground engaging tool in a particular position along the bucket edge.
  • the geometry of this arrangement greatly assists in the attachment of ground engaging tools.
  • the principle forces to which the tools are subjected are shear forces and compressive forces, and generally speaking these forces are transmitted directly to the bucket leading edge, rather than through the clamp or bolt being used.
  • the mechanical attachment is thus only really required to prevent lateral movement of the tool along the bucket edge, or the pulling away of the tool from the bucket edge.
  • heel shroud attachment There have been relatively few attempts to provide a mechanical attachment of heel shrouds to excavator buckets. There would appear to be two reasons for this. Firstly, the rate of wear of heel shrouds is less than that of ground engaging tools, and thus the economic advantage of mechanical attachment, whilst significant, is not as great as for ground engaging tools at the bucket leading edge. Secondly, and perhaps more significantly, the geometry of heel shroud attachment is much less promising than at the bucket leading edge.
  • Heel shrouds must be mounted around corners or heels of the bucket. As such, there is no lip for them to clamp around. In other words, the angle included by a heel shroud is in the order of 90°, as opposed to an included angle of about 20° typical for ground engaging tools. Any force acting on the heel shroud, except for a direct compressive force, will act directly on the attachment system on at least one face. This places significant stress upon the attachment system. To date, therefore, welding has proved the only suitable method of attachment.
  • the present invention seeks to provide a means of mechanically attaching a heel shroud to an excavator bucket which does not require bolting through the bucket walls.
  • an earth moving apparatus member having an outer surface which curves between a base portion and a side portion, the earth moving apparatus member having a wear member receiver located on the outer surface, the wear member receiver having an inwardly projecting portion having an upper surface, the upper surface forming an acute angle with respect to the base portion of the outer surface, and an outwardly projecting portion having an engagement surface, the engagement surface extending away from the side portion of the outer surface, whereby a wear member can locate about the wear member receiver and be restrained from moving in at least one direction.
  • the invention has been envisaged with the earth moving apparatus member being a bucket, such as an excavator bucket, the outer surface being a bucket corner or bucket heel and the wear member being a heel shroud.
  • the base portion may be the floor of the bucket, or may be the curved, rear portion of the bucket.
  • the wear member receiver may be prismatic. It is preferred, however, that the wear member receiver has at least one leg extending between the inwardly projecting portion and the outwardly projecting portion, the leg having tapered sides such that the leg narrows away from the outer surface. In a preferred embodiment, the wear member receiver has two such legs. At least one of the tapered sides provides a bearing surface, and allows for a wedging action to secure the wear member to the wear member receiver.
  • the inwardly projecting portion and outwardly projecting portion may each be formed by single, continuous members or by a number of discontinuous members.
  • the inwardly projecting portion is formed by two members, one associated with each leg, with the outwardly projecting portion being formed by a single member extending between the two legs. This allows for the engagement surface of the outwardly projecting portion to receive a load distributed along it, and allows for the inwardly projecting portions to engage with a catch portion of the wear member.
  • each leg or legs may be symmetrical about a central plane of each leg.
  • each leg has an outer side which is relatively steep and an inner side which is at a wide angle with respect to the first portion of the outer surface. This allows the inner sides to act as the bearing surfaces in preference to the outer sides.
  • a wear member for attachment to a wear member receiver located on a surface subject to wear, the wear member having a first body portion arranged to locate about the wear member receiver and a second body portion arranged to locate adjacent a side portion of the surface subject to wear, the first body portion having a catch portion located at an inner end thereof, the catch portion being sized and shaped so as to locate between a inwardly projecting portion of the wear member receiver and the surface subject to wear, the first body portion having at least one hollow arranged to locate about a leg of the wear member receiver, the hollow having at least one bearing surface arranged to engage with a bearing surface of the leg of the wear member receiver, and the second body portion having a lock receiving aperture and a bearing surface arranged to engage with a lock, such that the application of a force from the lock to the bearing surface of the second body portion acts to engage the bearing surface of the first portion hollow with its associated leg bearing surface.
  • the wear member is a heel shroud, with the surface subject to wear being the corner or heel of an earth moving bucket such as an excavator bucket.
  • the first body portion may have two corresponding hollows.
  • the first body portion has a further, non load-bearing hollow which serves both to reduce the weight of the wear member and also to provide a means for indicating a maximum degree of desirable wear.
  • the first body portion of the wear member preferably includes side walls arranged, in use, to surround the wear member receiver and to protect it.
  • the locking aperture extends through an outward face of the second body portion, allowing for a body of a lock to be inserted through the outward face.
  • the locking aperture opens out to a side wall of the second body portion, allowing for a lock activator to be inserted into the lock body.
  • Figure 1 (a) is a first perspective of a portion of a bucket heel to which a heel shroud is to be attached in accordance with the present invention
  • Figure 1 (b) is a second perspective of the bucket heel portion of Figure
  • Figure 1 (c) is a side view of the bucket heel portion of Figure 1 (a);
  • Figure 2(a) is a first perspective of a heel shroud to be attached to the bucket heel portion of Figure 1 (a);
  • Figure 2(b) is a second perspective of the heel shroud of Figure 2(a);
  • Figure 2(c) is a side view of the heel shroud of Figure 2(a);
  • Figure 2(d) is a lower perspective of the heel shroud of Figure 2(a);
  • Figure 3(a) is a first perspective of a lock for use in securing the heel shroud of Figure 2(a) to the bucket heel of Figure 1 (a);
  • Figure 3(b) is a second perspective of the lock of Figure 3(a);
  • Figure 3(c) is a lower perspective of the lock of Figure 3(a);
  • FIG 4 is a perspective of a lock activator for use in conjunction with the lock of Figure 3(a);
  • Figures 5(a) to 1 1 (a) are sequential perspectives of the bucket heel shroud of Figure 2(a) being attached to the bucket heel portion of Figure 1 (a);
  • Figures 5(b) to 1 1 (b) are side view corresponding to the perspectives of Figures 5(a) to 1 1 (a) respectively;
  • Figure 12 is a cross section through a portion of the bucket heel with attached shroud of Figure 1 1 ;
  • Figure 13 is a perspective of an excavator bucket to which are attached a plurality of heels shrouds in accordance with the present invention.
  • Figures 1 (a) to 1 (c) show a portion of an excavator bucket corner 10 having an inner surface 12 and an outer surface 14.
  • the outer surface 14 has a base portion or floor 16 which extends inwardly of the bucket leading edge (not shown), and a side portion 18 which is oriented at about 1 10° to the base portion 16.
  • the base portion 16 and side portion 18 are joined by a curved portion 17.
  • the bucket corner portion 10 has a wear member receiver 20 affixed to the most outward part of the base portion 16 of the outer surface 14.
  • the wear member receiver is cast integrally with the bucket corner portion 10.
  • the wear member receiver 20 is formed from two parallel legs 22, each extending towards an opposing side of the base portion 16.
  • Each leg 22 has a inner end 24 closest to a centre line of the base portion 16, and a outer end 26 furthest from the centre line of the base portion 16.
  • Each leg 22 has a inwardly projecting portion 28 at the inner end 24.
  • the inwardly projecting portion 28 has a sloped upper surface 30 which extends outwardly from the base portion 16 of the outer surface 14. The slope is such that the upper surface 30 is disposed at an acute angle relative to the base portion 16, thereby creating a generally triangular hollow 32 between the upper surface 30 and the base portion 16. In the embodiment shown, the acute angle is about 60°.
  • Each leg 22 has tapered sides, an inner tapered side 34 and an outer tapered side 36.
  • the outer tapered sides 36 are oriented at about 80° to the base portion 16.
  • the inner tapered sides 34 are oriented at about 60° to the base portion 16.
  • the outer tapered sides 36 are thus relatively steep, with the inner tapered sides 34 being at a relatively wide angle.
  • Each leg 22 has a outwardly projecting portion 40 at the outer end 26.
  • the outwardly projecting portion 40 includes a sloped upper surface 42 which extends outwardly from the curved portion 17 of the outer surface 14, between the base and side portions 16, 18.
  • the orientation of the upper surface 42 is such that it is oriented at about 90° to the side portion 18 of the outer surface 14.
  • the wear member receiver 20 includes a connecting member 44 which extends between the respective outwardly projecting portions 40 of the two legs 22.
  • the connecting member 44 and the two outwardly projecting portions 40 together define an outwardly projecting portion of the wear member receiver 20.
  • the connecting member 44 has an upper surface which joins, and is a continuation of, the upper surfaces 42. This upper surface and the upper surfaces 42 combine to form an engaging surface 46 which extends across the outer part of the wear member receiver 20.
  • Figures 2(a) to 2(d) show a wear member, being a heel shroud 60, which mounts to the wear member receiver 20.
  • the heel shroud 60 is comprises a first body portion 62 and a second body portion 64.
  • the first body portion 62 has a generally rectangular prismatic outer shape, with inner end wall 66, and a outer end wall 68, and two generally parallel side walls 70.
  • the first body portion 62 has a slightly convex, rectangular lower surface 72.
  • the first body portion 62 also has an upper surface 74 which is arranged, in use, to abut the base portion 16 of the outer surface 14 of the bucket heel 10.
  • the first body portion 62 has two hollows 76 internally of the upper surface 74.
  • the hollows 76 are each sized to engage with a corresponding leg 22 of the wear member receiver 20.
  • the hollows 76 each have an inner, tapered side wall 78 and an outer tapered side wall 80.
  • the respective slope of the side walls 78, 80 corresponds to the slope of the sides 34, 36 of the legs 22 of the wear member receiver 20.
  • the hollows 76 each have a catch portion 82 located at an inner end thereof.
  • the catch portion 82 is formed by a tapered end wall, oriented so as to lengthen the hollow 76 away from the upper edge 74.
  • the catch portion 82 is complementary in shape to the triangular hollow 32 of the wear member receiver 20.
  • the first body portion 62 has a further hollow 84 located between the two hollows 76.
  • the further hollow 84 has side walls which are nearly parallel, and nearly perpendicular to the upper surface 74.
  • the further hollow 84 has a depth from the upper surface 74 which is slightly greater than the depth of the hollows 76.
  • the first body portion 62 has a further generally cut away area 86 internally of the upper surface 74, located towards the outer end wall 68. This further cut away area 86 is complementary in shape to the rearwadly projecting portion 40 of the wear member receiver 20.
  • the second body portion 64 is generally perpendicular to the first body portion 62, extending above the upper surface 74 towards the outer end wall 68. It has an inner face 92 arranged, in use, to abut the side portion 18 of the outer surface 14 of the bucket corner portion 10.
  • the second body portion 64 has an outer face 94 which at its upper end extends away from the inner face 92 at about a 45° angle, so as to define a generally triangular cross sectional shape. At its lower end the outer face 94 joins the outer end wall 68 of the first body portion 62.
  • the second body portion has a first side wall 96, and a generally triangular second side wall 98.
  • a lock receiving aperture 100 extends between the inner face 92 and the outer face 94.
  • the lock receiving aperture 100 has a substantially flat floor 102, generally parallel to the lower surface 74 of the first body portion 62.
  • the lock receiving aperture has parallel side walls 104, each having guiding channels 106 adjacent the floor 102, creating an L-shaped path.
  • the lock receiving aperture 100 also opens out onto the first side wall 96, at the inner face 92. This opening creates a gap 108 between the second body portion 64 and the side portion 18 of the bucket corner portion 10 through which the lock receiving aperture 100 can be accessed.
  • the lock receiving aperture 100 has a ceiling 1 10 having an introduction region 1 12 substantially parallel to the floor 102; a bearing region 1 14 forward of the introduction region 1 12, the bearing region being angled relative to the introduction region 1 12 such that, when in position, the bearing region 1 14 is substantially parallel to the engaging surface 46 of the wear member receiver 20; and a tapered side portion 1 16 arranged to receive a lock activator as will be described below.
  • Figures 3(a) to 3(c) show a lock 130 which is used to secure the heel shroud 62 to the bucket corner portion 10.
  • the lock 130 has a body portion 132 and an activating portion 134.
  • the body portion 132 is generally sized and shaped to be complementary in shape to the lock receiving aperture 100. It has two transverse projections 136 which are arranged to locate within the guiding channels 106 of the lock receiving aperture 100.
  • the activating portion 134 is positioned forward of the body portion 132. It includes an upper bearing face 140 which extends forwardly of the body portion 132 at an incline, corresponding to the incline of the bearing region 1 14 of the lock receiving aperture.
  • the activating portion 134 has a first lower bearing face 141 which is inclined about a transverse axis relative to the lock's movement, so as to be parallel to the upper bearing face 140.
  • the activating portion 134 also has a second lower bearing face 142 located at the forward end of the first lower bearing face 141 .
  • the second lower bearing face 142 is inclined upwardly towards the first side wall 96 of the second body portion 64 of the heel shroud 60, thus opening towards the gap 108.
  • the second lower bearing face is thus inclined firstly about the transverse axis and secondly about an axis aligned with the lock's movement. These can be considered as an inclination in pitch and in roll.
  • the second lower bearing face 142 is inclined in the same direction as the first lower bearing face 140, to correspond to the engaging surface 46 of the wear member receiver 20.
  • the second lower bearing face 142 is inclined upwardly towards the gap 108. The inclination in roll corresponds to the inclination of the tapered side portion 1 16 of the ceiling 1 10.
  • the activating portion 134 has an internally threaded bolt hole 144 which is parallel to, and directly above, the second lower bearing face 142.
  • FIG. 4 shows a lock activator 150.
  • the lock activator 150 has a wedging portion 152, which is substantially right triangular prismatic in shape.
  • the wedging portion 152 has an upper bearing surface 154, which in cross section represents the hypotenuse of the right-angled triangle, a lower bearing surface 156 and a side surface 158.
  • the angle between the upper and lower bearing surfaces 154, 156 is equal to the inclination in roll of the second lower bearing face 142 of the lock 130.
  • the lock activator 150 has an externally threaded bolt 160 located in a bearing above the upper bearing surface 154.
  • the bolt 160 has a central axis parallel to the upper bearing surface 154.
  • the bolt 160 is sized so as to engage with the bolt hole 144 of the lock 130.
  • the upper bearing surface 154 is arranged to bear against the second lower bearing face 142 of the lock 130. Turning of the bolt results in movement of the lock activator 150 in a direction parallel to the second lower bearing face 142.
  • the heel shroud 60 is first hooked about the inner end 24 of the wear member receiver 20. This is done by engaging the catch portion 82 of the hollows 76 of the heel shroud 60 in the triangular hollow 32 at the inner end 24 of the wear member receiver 20. This is shown in Figure 5.
  • the heel shroud 60 can then be rotated about the inwardly projecting portion 28 of the wear member receiver 20 through the position shown in Figure 6 to the position of Figure 7.
  • the upper surface 74 of the first body portion 62 of the heel shroud 60 is close to the base portion 16 of the outer surface 14 of the bucket corner portion 10.
  • the inner face 92 of the second body portion 64 of the heel shroud 60 is abutting the side portion 18 of the outer surface 14 of the bucket corner portion 10.
  • the legs 24 of the wear member receiver 20 are located within the hollows 76 of the heel shroud 60.
  • the outwardly projecting portion 40 of the wear member receiver 20 is located within the cut away portion 86 of the heel shroud 60.
  • the lock 130 can then be introduced into the lock receiving aperture 100 from the outside, as shown in Figure 8.
  • the transverse projections 136 locate within the guiding channels 106, allowing the lock 130 to move inwards and then up in an V shaped path, to its final position shown in Figure 9. In this position the lock 130 has moved inward to a position where the lock activating portion 134 is accessible through the gap 108.
  • the upper bearing face 140 of the lock 130 locates against, or close to, the bearing region 1 14 of the ceiling 1 10.
  • the first lower bearing face 141 of the lock 130 locates against, or close to, the engaging face 46 of the lock receiving member 20. The lock thus acts to prevent the heel shroud 60 from rotating backwards.
  • the lock activator 150 can then be introduced into the gap 108 as shown in Figures 10 and 1 1 , with the bolt 160 being engaged within the bolt hole 144.
  • the upper bearing face 154 of the lock activator 150 abuts the second lower bearing face 142 of the lock 130.
  • the lower bearing face 156 of the lock activator 150 abuts the engaging face 46 of the lock receiving member 20.
  • the heel shroud 60 is subject to wear, and also to vibration. Should vibration cause the shroud to become loose, further advancement of the bolt 160 within the bolt hole 144 will allow the shroud to be tightened.
  • the further hollow 84 of the heel shroud 60 acts as an indicator of useful life.
  • the first indication of this will be the lower surface 72 wearing through to the further hollow 84. This will allow for replacement of the heel shroud 60 before the surface wears through to the other hollow 76, which may cause damage to the wear member receiver 20.
  • a plurality of heel corner portions 10 including cast wear member receivers 20 can be welded around the corners of an excavator bucket 170.
  • a corresponding plurality of heel shrouds 60 can then be affixed about the corner of the excavator bucket 170.
  • Such a bucket is shown in Figure 13.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

L'invention concerne un élément d'un appareil de terrassement (par exemple un godet 170 Fig. 13) comportant un angle (10) ayant une surface extérieure courbe (14) entre une partie base et une partie latérale. Un dispositif de réception d'élément d'usure (20) est situé sur cette surface extérieure et comporte deux montants (22) et une partie faisant saillie vers l'intérieur (28) ayant une surface supérieure (30), la surface supérieure formant un angle aigu par rapport à la partie base de la surface extérieure, et une partie faisant saillie vers l'extérieur (40) ayant une surface de mise en prise (42), la surface de mise en prise s'étendant à distance de la partie latérale de la surface extérieure, ce par quoi un élément d'usure (60) se positionne autour du dispositif de réception d'élément d'usure (20) et est retenu contre tout déplacement dans au moins une direction. L'invention concerne aussi l'élément d'usure (60) ayant une première partie corps (62) arrangée pour se situer autour du dispositif de réception d'élément d'usure et une seconde partie corps (64) arrangée pour se situer de manière adjacente par rapport à une partie latérale de la surface soumise à l'usure. La première partie corps comporte une partie d'encliquetage (82) se trouvant au niveau d'une extrémité intérieure de celle-ci, la partie d'encliquetage étant configurée pour se situer entre une partie faisant saillie vers l'intérieur (32) du dispositif de réception d'élément d'usure et la surface soumise à l'usure, la première partie corps ayant au moins un creux (76) arrangé pour se situer autour d'un montant du dispositif de réception d'élément d'usure, le creux ayant au moins une surface d'appui arrangée à des fins de mise en prise avec une surface d'appui du montant du dispositif de réception d'élément d'usure, et la seconde partie corps ayant une ouverture de réception de dispositif de verrouillage (100) s'ouvrant sur un côté de l'élément d'usure, et une région d'appui (114) arrangée à des fins de mise en prise avec un dispositif de verrouillage, de sorte que l'application d'une force depuis le dispositif de verrouillage jusqu'à la surface d'appui de la seconde partie corps agit pour mettre la surface d'appui du creux de la première partie en prise avec sa surface d'appui de montant associée.
PCT/AU2011/000655 2010-06-14 2011-05-30 Élément de protection de talon et moyen de fixation mécanique WO2011156834A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2010902598 2010-06-14
AU2010902598A AU2010902598A0 (en) 2010-06-14 Heel shroud and means of mechanical attachment

Publications (1)

Publication Number Publication Date
WO2011156834A1 true WO2011156834A1 (fr) 2011-12-22

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012159155A1 (fr) * 2011-05-20 2012-11-29 Sandvik Shark Pty Ltd Élément d'usure entrant en prise avec le sol et moyens de fixation mécanique
WO2014037781A3 (fr) * 2012-09-04 2014-05-15 Sandvik Intellectual Property Ab Coin de godet, outil d'engagement avec le sol et sa fixation mécanique mutuelle
WO2015089565A1 (fr) * 2013-12-20 2015-06-25 Bradken Resources Pty Limited Ensemble de verrouillage pour un élément d'usure
USD751610S1 (en) 2014-11-07 2016-03-15 Caterpillar Inc. Heel shroud
WO2016061609A1 (fr) * 2014-10-21 2016-04-28 Long Dale Arthur John Ensemble de protection contre l'usure
US20160130790A1 (en) * 2014-11-07 2016-05-12 Caterpillar Inc. Wear member for tool
AU2013311371B2 (en) * 2012-09-04 2017-08-31 Sandvik Intellectual Property Ab Ground engaging tool mechanical attachment
US9758947B2 (en) 2014-11-07 2017-09-12 Caterpillar Inc. Mounting base for wear member
USD882646S1 (en) 2018-11-09 2020-04-28 Caterpillar Inc. Bucket shroud
WO2021011994A1 (fr) * 2019-07-24 2021-01-28 2Mt Mining Products Pty Ltd Systèmes de protection
US10947704B2 (en) 2018-11-20 2021-03-16 Caterpillar Inc. Bolt retention assembly for a work tool
WO2022177659A1 (fr) * 2021-02-17 2022-08-25 Black Cat Wear Parts Ltd. Enveloppe de talon pour outil de déplacement de matériau et procédés associés
WO2023172825A1 (fr) * 2022-03-09 2023-09-14 Caterpillar Inc. Enveloppe de talon d'engin de chantier présentant une géométrie de réduction de concentration de contrainte et une durabilité améliorée
WO2023172836A1 (fr) * 2022-03-09 2023-09-14 Caterpillar Inc. Carénage de talon à géométrie de réduction de concentration de contrainte et à durabilité améliorée destiné à être utilisé dans des engins de chantier
WO2023225718A1 (fr) * 2022-05-25 2023-11-30 Talon Engineering SDN. BHD. Fixation d'un carénage de talon
US12054921B2 (en) 2021-06-03 2024-08-06 Caterpillar Inc. Corner guard for a work implement assembly

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US4716666A (en) * 1986-09-29 1988-01-05 Esco Corporation Wear runner for excavating bucket
US5564508A (en) * 1995-08-03 1996-10-15 Caterpillar Inc. Replacable wear runner
US5937549A (en) * 1996-08-08 1999-08-17 Caterpillar Inc. Wear member attachment system
US6240663B1 (en) * 2000-09-18 2001-06-05 G. H. Hensley Industries, Incorporated Streamlined resilient connection system for attaching a wear member to an excavating lip structure
US20040216335A1 (en) * 2003-04-30 2004-11-04 Esco Corporation Wear assembly for excavator digging edge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4716666A (en) * 1986-09-29 1988-01-05 Esco Corporation Wear runner for excavating bucket
US5564508A (en) * 1995-08-03 1996-10-15 Caterpillar Inc. Replacable wear runner
US5937549A (en) * 1996-08-08 1999-08-17 Caterpillar Inc. Wear member attachment system
US6240663B1 (en) * 2000-09-18 2001-06-05 G. H. Hensley Industries, Incorporated Streamlined resilient connection system for attaching a wear member to an excavating lip structure
US20040216335A1 (en) * 2003-04-30 2004-11-04 Esco Corporation Wear assembly for excavator digging edge

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9371631B2 (en) 2011-05-20 2016-06-21 Sandvik Mining And Construction Australia (Production/Supply) Pty Ltd Ground engaging wear member and means of mechanical attachment
WO2012159155A1 (fr) * 2011-05-20 2012-11-29 Sandvik Shark Pty Ltd Élément d'usure entrant en prise avec le sol et moyens de fixation mécanique
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