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WO2009127016A1 - Ensemble verrou pour élément d'usure d'excavatrice - Google Patents

Ensemble verrou pour élément d'usure d'excavatrice Download PDF

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Publication number
WO2009127016A1
WO2009127016A1 PCT/AU2009/000488 AU2009000488W WO2009127016A1 WO 2009127016 A1 WO2009127016 A1 WO 2009127016A1 AU 2009000488 W AU2009000488 W AU 2009000488W WO 2009127016 A1 WO2009127016 A1 WO 2009127016A1
Authority
WO
WIPO (PCT)
Prior art keywords
retaining
lock member
nose
aperture
excavator
Prior art date
Application number
PCT/AU2009/000488
Other languages
English (en)
Inventor
Paul Lindsay Heaphy
Cameron Wayne Radel
Derek Adolf Mulder
Original Assignee
Cqms Pty Ltd
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 AU2008901939A external-priority patent/AU2008901939A0/en
Application filed by Cqms Pty Ltd filed Critical Cqms Pty Ltd
Priority to US12/988,494 priority Critical patent/US20110058894A1/en
Priority to AU2009238226A priority patent/AU2009238226C1/en
Priority to CA2721781A priority patent/CA2721781C/fr
Publication of WO2009127016A1 publication Critical patent/WO2009127016A1/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
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32606—Pivoted
    • Y10T403/32861—T-pivot, e.g., wrist pin, etc.
    • Y10T403/32918—T-pivot, e.g., wrist pin, etc. fork and tongue

Definitions

  • the invention relates to a lock assembly for an excavator wear member.
  • the invention relates to a lock assembly for releasably securing an excavator tooth to a nose of an excavator.
  • Excavator tooth assemblies mounted to the digging edge of excavator buckets and the like generally comprise a replaceable digging tooth, an adaptor body and an adaptor nose which is secured by welding or the like to the digging edge of a bucket or the like.
  • the tooth generally has a socket-like recess at its rear end to receivably locate a front spigot portion of the adaptor nose and a removable locking pin is generally employed to releasably secure the tooth on the adaptor.
  • excavator teeth are subjected to extensive load forces along a longitudinal axis of a tooth as well as in vertical and transverse directions.
  • a snug fit is required between the digging point and the front portion of the adaptor and also between the adaptor socket and the nose spigot portion and their respective mounting pins to avoid premature wear between the components.
  • the locking pins can loosen thereby increasing the risk of loss of a digging point or an entire adaptor/tooth combination. This necessitates considerable downtime to replace the lost wear members and where items such as locking pins are not recovered, these can cause damage and/or further downtime in downstream operations such as ore crushing and the like.
  • United States Patent No 4,231 ,173 describes a tapered adaptor nose having a box-like free end, which engages in a mating box-like socket cavity to resist rotational moments. Opposed pairs of rearwardly extending tongues engage in corresponding recesses in the outer surfaces of the adaptor nose to resist rotational movements. Because the tongues themselves are unsupported, they possess a limited capacity to resist rotational moment forces.
  • United States Patent No 5,272,824 describes a structure similar to that of United States Patent No 4,231 ,173 except that the side tongues are of more robust dimensions and the upper and lower tongues are formed as box-like members with apertures to receive a vertical mounting pin passing through aligned apertures in the tooth and adaptor nose.
  • United States Patent No 4,404,760 provides flat rail surfaces on the adaptor nose to engage with mating grooves in the socket aperture of a corresponding tooth wherein the mating rail and groove surfaces are generally parallel to the longitudinal axis of the tooth.
  • United States Patent No 5,423,138 describes a generally tapered nose having a box-like front end with upper and lower transverse surfaces generally parallel to a longitudinal axis of a tooth which located directly thereon.
  • the parallel upper and lower transverse surfaces are contiguous with upper and lower rail surfaces on each side of the nose and parallel to the longitudinal axis of the tooth.
  • a pair of rearwardly extending side tongues locate in recesses formed in the outer side faces of the nose, ostensibly to resist rotational moment forces in the tooth. Because the side tongues are recessed to accommodate the side rail portions, the robustness of the side tongues is somewhat compromised.
  • United States Patent No 4,233,761 describes a fairly stubby tapered nose having a box-like front portion with upper and lower surfaces generally parallel to a longitudinal axis of an excavator tooth, an intermediate rearwardly diverging tapered portion and a rear portion having upper and lower surfaces extending generally parallel to a longitudinal axis of the tooth.
  • Formed on the upper and lower surfaces of the front, intermediate and rear portions of the nose are spaced parallel reinforcing ribs which are located in mating grooves in the excavator tooth.
  • a large vertical locking pin extends through aligned apertures in the tooth and nose between the reinforcing ribs.
  • United States Patent No 6,018,896 describes a pin/retainer system for locking an excavation tooth onto an adaptor wherein the retainer is inserted in the adaptor and a wedge-shaped pin is driven into aligned apertures in the tooth and adaptor to resiliency engage with the retainer.
  • United States Publication No US 2002/0000053A1 describes a mechanism for releasably retaining an adaptor into the nose of a bucket lip or the like wherein a tapered threaded socket is non-rotatably located on the inside of an aperture in the side wall of the adaptor.
  • a threaded retaining pin extends through the threaded socket and locates in an aligned aperture in the bucket nose.
  • United States Patent No 5,937,550 describes a lock assembly for releasably securing an adaptor to a nose of an excavator support structure.
  • the lock assembly comprises a body and a base coupled together and adapted for insertion, while coupled together, in a hole in the nose of the support structure.
  • the length of the lock assembly is extended to secure the adaptor and is retracted to release the adaptor. While adequate for securing an adaptor to a nose of an excavator support structure, the lock described in this patent is relatively complex in design and operation leading to high costs and labour intensive extraction procedures in the field.
  • Canadian Patent Application No 2,161 ,505 describes a system for removably retaining an excavation point on an adaptor with at least one flanged sleeve having a screw-threaded aperture therein, the flanged sleeve being non-rotatably beatable in a transverse bore in the adaptor before fitment of the point onto the adaptor.
  • a screw-threaded pin is inserted into the sleeve via an aperture in the point whereby portion of the head of the pin retains the point on the adaptor.
  • Australian Patent Application No 2003264586 describes a locking pin assembly comprising a body member having a non-circular cross- sectional shape locatable in a bore of complementary shape extending laterally between opposite sides of an excavator lip mounting nose.
  • an adaptor can be engaged over the nose with apertures in opposite side walls aligned with the body member.
  • Threaded bolts engage in threaded apertures in opposite ends of the body member, the bolts each having a tapered shank portion with an enlarged boss at a free end thereof, the boss being beatable in a respective aperture in a side wall of said adaptor to prevent the adaptor from disengaging with the nose.
  • the invention resides in a lock assembly for releasably securing an excavator tooth on a nose of an excavator, the lock assembly comprising: a rigid lock member having a base portion and a retaining portion extending from said base portion, the base portion adapted to be located in a retaining cavity of the nose and the retaining portion adapted to at least partially extend into a retaining aperture of the wear member a resiliently deformable lock member, in use, adapted to be located within the retaining cavity of the nose to abut an upper face of the rigid lock member to thereby captively retain the base portion of the rigid lock member in the retaining cavity and the retaining portion at least partially within the retaining aperture such that side walls of the retaining portion of the rigid lock member bear against complimentary side walls of the retaining aperture of the wear member and opposed bearing faces of the base portion of the rigid lock member oppose and engage respective side walls of the retaining cavity of the nose of the excavator to
  • the retaining portion of the rigid lock member has outwardly convergent side wall portions adapted to oppose and engage complimentary inwardly divergent side walls of the retaining aperture of the wear member.
  • the resiliently deformable lock member is adapted to be deformed in order to allow passage through the retaining aperture into the retaining cavity.
  • the resiliently deformable lock member has at least one latch adapted to be located inwardly of a side wall of the retaining aperture.
  • FIG 1A shows a perspective view of an excavator wear assembly according to an embodiment of the invention
  • FIG 1B shows an exploded perspective view of the excavator wear assembly shown in FIG 1A
  • FIG 2 shows a partial front perspective view of an adaptor forming part of the excavator wear assembly shown in FIG 1 A;
  • FIG 3A shows a rear perspective view of a tooth forming part of the excavator wear assembly shown in FIG 1 A;
  • FIG 3B shows a sectional top view of the tooth shown in FIG 3A
  • FIG 4A shows a front perspective view of a rigid lock member 1310 forming part of the excavator wear assembly of FIG 1A;
  • FIG 4B shows a front perspective view of a resiliently deformable lock member forming part of the excavator wear assembly of FIG 1 A;
  • FIG 4C shows a plan view of the resiliently deformable lock member shown in FIG 4B;
  • FIG 4D shows a rear perspective view of the resiliently deformable lock member shown in FIG 4B;
  • FIG 5A shows a perspective view of the tooth shown in FIG 3A mounted upon the adaptor shown in FIG 2;
  • FIG 5B shows a top sectional view of the perspective view shown in FIG 5A;
  • FIG 6A shows a forward perspective view of the excavator wear assembly in a partially assembled position
  • FIG 6B shows a rear perspective view of the excavator wear assembly shown in FIG 6A;
  • FIG 6C shows a top sectional view of the excavator wear assembly shown in FIG 6A;
  • FIG 7A shows a close up perspective view of the excavator wear assembly in a fully assembled position
  • FIG 7B shows an underside sectional view of the excavator wear assembly shown in FIG 7A.
  • FIG 1A shows a perspective view of an excavator wear assembly
  • FIG 1B shows an exploded perspective view of the excavator wear assembly 1000.
  • Excavator wear assembly comprises a wear member in the form of a tooth
  • Adaptor 1200 is suitably configured for mounting on a digging edge of an excavator by way of an adaptor socket 1210.
  • Adaptor socket 1210 is formed in a shape complimentary with a nose of an excavator digging edge (not shown).
  • Adaptor 1200 has aligned transverse apertures 1221 each extending through a respective opposed side wall 1220. Aligned transverse apertures 1221 are adapted to receive an adaptor retaining pin (not shown) which extends through aligned transverse apertures 1221 and an adaptor retaining pin passage in the complimentary shaped nose (not shown) to thereby retain the adaptor 1200 on the excavator digging edge.
  • Adaptor 1200 further includes a spigot portion 1230 extending from a forward portion thereof and upper and lower mounting recesses 1201 and 1202 (lower mounting recess 1202 not shown in FIG 1A or FIG 1B) respectively. Additionally, adaptor 1200 has a pair of side wall mounting recesses 1203 and 1204 (not shown) located in a forward portion of each opposed side wall 1220.
  • FIG 2 shows a partial front perspective view of adaptor 1200.
  • Spigot portion 1230 has converging upper and lower rear bearing surfaces 1231 , 1232 which terminate at substantially parallel upper and lower forward bearing surfaces 1233, 1234 respectively.
  • a front bearing face 1235 is disposed between upper forward bearing surface 1233 and lower forward bearing surface 1234.
  • Spigot portion 1230 also has a retaining cavity 1240 located in opposed side walls 1236 of spigot portion 1230.
  • Each retaining cavity 1240 is formed from a lower cavity 1241 and an upper cavity 1242.
  • Upper cavity 1242 is relatively wider than lower cavity 1242 and extends further transversely within spigot portion 1230 thereby forming a ridge 1243 between upper cavity 1242 and lower cavity 1241.
  • a recess 1244 is formed in a floor 1241A of lower cavity 1241 and extends through to a rear wall 1242A of upper cavity 1242 thereby forming a groove 1241 B in a back wall 1241 C of lower cavity 1241.
  • the function of retaining cavity 1240 is discussed in greater detail below.
  • FIG 3A shows a rear perspective view of tooth 1100 and FIG 3B shows a sectional top view of a portion of tooth 1100.
  • Wear member in the form of tooth 1100 has a forwardly projecting working end 1101 and a socket cavity 1110 formed from converging upper and lower rear bearing surfaces 1111 (bit shown) and 1112 respectively.
  • Each of upper and lower bearing surfaces 1111 and 1112 terminate at substantially parallel upper and lower forward bearing surfaces 1113 (not shown) and 1114 respectively.
  • a front bearing face 1115 is disposed between upper forward bearing surface 1113 (not shown) and lower forward bearing surface 1114.
  • Tooth 1100 further includes upper and lower mounting projections
  • mounting projections 1101, 1102, 1103 and 1104 are adapted to be located within mounting recesses 1201 , 1202, 1203 and 1204 respectively of adaptor 1200.
  • a retaining aperture 1120 extends through each opposed side wall 1105 and 1106 of tooth 1100.
  • Retaining aperture 1120 is formed from an upper retaining aperture 1121 extending through a respective side wall 1105 and 1106. Retaining aperture 1120 also has an upper retaining aperture 1122 extending through a respective side wall 1105 and 1106.
  • Upper retaining aperture 1122 is relatively wider than lower aperture
  • lower retaining aperture 1121 has a centre that is located rearwardly of upper retaining aperture 1122.
  • upper retaining aperture 1121 has a centre that is located rearwardly of upper retaining aperture 1122.
  • Retaining aperture 1120 is adapted to at least partially align with upper retaining cavity 1242 of adaptor 1200 when tooth 1100 is located upon spigot portion 1230 of adaptor 1200 such that side walls of upper retaining aperture 1122 are encompassed by side walls of upper retaining cavity 1242.
  • Retaining aperture 1120 further includes a recess 1123 extending inwardly along floor 1124 of lower retaining aperture 1121.
  • Lower retaining aperture 1121 has inwardly diverging side walls 1125A, 1125B such that the cross sectional area of lower retaining aperture 1121 is greater at socket cavity 1110 than at side walls 1105 and 1006.
  • retaining aperture 1120 has a longitudinal recess 1126 forming a longitudinal bench 1127 on inwardly diverging side wall 1125A of lower retaining aperture 1121. Longitudinal recess also forms a forwardly located projection 1128 in a side of upper retaining aperture 1122. The function of retaining aperture 1120 will be discussed in greater detail below.
  • Excavator wear assembly 1000 further includes at least one lock assembly 1300 to releasably secure tooth 1100 on adaptor 1200.
  • excavator wear assembly has two lock assemblies 1300 each extending through at least partially aligned retaining aperture 1120 and retaining cavity 1240 in opposed side walls as will be discussed in greater detail below.
  • Lock assembly is formed from a rigid lock member 1310 and a resiliently deformable lock member 1320.
  • FIG 4A shows a front perspective view of rigid lock member 1310.
  • Rigid lock member 1310 is preferably formed from a rigid material such as steel or the like. Rigid lock member 1310 is formed from a base portion 1311 and a retaining portion 1312 extending from base portion 1311.
  • Base portion 1311 is configured to be received in lower retaining cavity 1241 in adaptor 1200 and retaining portion 1312 is configured to be received in lower retaining aperture 1121 of tooth 1100 as will be discussed in greater detail below.
  • Base portion 1311 has opposing bearing faces
  • FIG 4B shows a front perspective view of resiliently deformable lock member 1320 forming part of lock assembly 1300.
  • FIG 4C shows a plan view of resiliently deformable lock member 1320 and
  • FIG 4D shows a rear perspective view of resiliently deformable lock member 1320.
  • resiliently deformable lock member 1320 is formed from polyurethane or similar resiliently deformable material.
  • Resiliently deformable lock member 1320 has a front face 1321 and a rear face 1322.
  • resiliently deformable lock member 1320 includes a strengthening member (not shown) located therein to provide structural support.
  • a strengthening member (not shown) located therein to provide structural support.
  • two apertures 1323 extend from front face 1321 to rear face 1322.
  • Each respective aperture 1323 has a piercable membrane 1324 disposed therein adjacent front face 1321 and set back within aperture 1323 as shown.
  • Angled shoulders 1325 extend rearwardly from opposing ends of front face 1321. Opposed rearwardly diverging side wall portions 1326 extend from a respective angled shoulder 1325.
  • Angled shoulders 1327 extend forwardly from opposing ends of rear face 1322.
  • Opposed rearwardly converging side wall portions 1328 extend from a respective angled shoulder 1327 and terminate at a respective rearwardly diverging side wall portion 1326 as shown.
  • Each rearwardly converging side wall portion 1328 extends forward of its intersection with each respective rearwardly diverging side wall portion 1326 to form latch 1329.
  • Resiliently deformable lock member 1320 further comprises a catch 1330 located in at least one of rearwardly diverging side wall portions 1326 as shown. Additionally, upper and lower shoulders 1331 and 1332 are located above and below respectively of both opposed rearwardly diverging side wall portions 1326 and opposed rearwardly converging side wall portions 1328.
  • Resiliently deformable lock member 1320 is adapted to be captively retained within upper retaining cavity 1242 of adaptor 1200. Furthermore, resiliently deformable lock member 1320 is adapted to deformably pass through upper retaining aperture 1122 as will be discussed further below.
  • lock assembly 1300 releasably secures tooth 1100 on spigot portion 1230 of adaptor 1200 as discussed below.
  • FIG 5A shows a perspective view of tooth 1100 mounted upon adaptor 1200 and FIG 5B shows a top sectional view of tooth 1100 mounted upon adaptor 1200.
  • Socket cavity 1110 of tooth 1100 is mounted upon spigot portion 1230 of adaptor such that bearing surfaces 111 , 1112, 1113 and 114 and front bearing face 1115 (all not shown in FIG 5A or FIG 5B) oppose and engage complimentary bearing surfaces 1231 , 1232, 1233 and 1234 and front bearing face 1235 (all not shown in FIG 5A or FIG 5B) respectively of spigot portion 1230 of adaptor 1200.
  • mounting projections 1101, 1102, 1103 and 1104 of tooth 1100 are located within mounting recesses 1201, 1202, 1203 and 1204 respectively of adaptor 1200.
  • Retaining aperture 1120 of tooth 1100 at least partially aligns with retaining cavity 1240 of adaptor 1200.
  • Upper retaining aperture 1122 of tooth 1100 partially aligns with upper retaining cavity 1242 of adaptor 1200 such that such that side walls of upper retaining aperture 1122 are encompassed by side walls of upper retaining cavity 1242.
  • an outer extent of inwardly diverging side walls 1125A and 1125B of lower retaining aperture 1121 are encompassed by side walls of lower retaining cavity 1241 of adaptor 1200 as shown.
  • recess 1123 extending inwardly along floor 1124 of lower retaining aperture generally corresponds with recess 1244 formed in floor 1241 A of lower retaining cavity 1241 as shown.
  • FIG 6A shows a forward perspective view of the excavator wear assembly 1000 in a partially assembled position whereby rigid lock member 1310 is located within lower retaining cavity 1241.
  • FIG 6B shows a rear perspective view of the excavator wear assembly 10000 shown in FIG 6A and
  • FIG 6C shows a top sectional view of the excavator wear assembly 1000 shown in FIG 6A.
  • Rigid lock member 1310 is then located through upper retaining aperture 1122 and received in upper retaining cavity 1242. As discussed previously, as upper retaining cavity 1242 has a greater width than lower retaining cavity 1241 and base portion 1311 of rigid lock member 1310 is configured to be received in lower retaining cavity 1241, rigid lock member 1310 drops such that base portion 1311 is received in lower retaining cavity 1241 of adaptor 1200 as shown.
  • retaining portion 1312 of rigid lock member 1310 extends outwardly of lower retaining cavity 1241 at least partially into lower retaining aperture 1121 of tooth 1100 such that outwardly converging side walls 1313A and 1313B of rigid lock member 1310 oppose and are engagable with inwardly diverging side walls 1125A and 1125B respectively of lower retaining aperture 1121 of tooth 1100 in order to thereby bear against inwardly diverging side walls 1125A and 1125B.
  • bearing faces 1314 and 1315 of base portion 1311 oppose and are engagable with corresponding side walls of lower retaining cavity 1241 to thereby bear against the same.
  • tooth 1100 is releasably secured to adaptor 1200.
  • FIG 7A shows a close up perspective view of the excavator wear assembly 1000 in a fully assembled position and FIG 7B shows an underside sectional view of the excavator wear assembly 1000 shown in FIG 7A.
  • Resiliency deformable lock member 1320 is then inserted through upper retaining aperture 1122 of tooth 1100 into upper retaining cavity 1242 of spigot portion 1230 of adaptor 1200.
  • the width of resiliently deformable lock member 1320 is greatest at the intersection of respective rearwardly diverging side wall portions 1326 and rearwardly converging side wall portions 1328 where latch 1329 is formed. This width is greater than a width of upper retaining cavity 1242. As such, resiliency deformable lock member 1320 is deformed under a force to allow insertion into upper retaining cavity 1242.
  • a tool such as a screw driver or the like, may be employed to interface with catch 1330 in order to assist in levering resiliency deformable lock member 1320 into upper retaining cavity 1242.
  • each latch 1329 locates behind a respective side wall of upper retaining aperture 1122 of tooth 1100 to thereby secure resiliency deformable lock member 1320 in place. In this position, resiliency deformable lock member
  • resiliency deformable lock member 1320 at least partially extends into upper retaining aperture 1122 of tooth 1100.
  • the resiliency deformable lock member 1320 does not bear against side walls of upper retaining aperture 1122 of tooth 1100.
  • resiliency deformable lock member 1320 exerts a biasing force on side walls and top wall of upper retaining cavity 1242 and on a top face of rigid lock member 1310.
  • resiliency deformable lock member may be retained within upper retaining cavity by way of an interference fit. In this way, resiliently deformable lock member 1320 captively retains rigid lock member 1310 in place.
  • the lock assembly 1300 releasably secures wear member in the form of tooth 1100 on a nose of an excavator which, in the embodiment, is in the form of adaptor 1200.
  • transverse loads are similarly borne.
  • these respective tapers also accommodate for manufacturing tolerances in the respective components such that the assembly remains effective.
  • resiliently deformable lock member 1320 captively retains rigid lock member 1310 in place as discussed above.
  • resiliently deformable lock member 1320 is levered out of upper retaining cavity 1242 of adaptor 1200.
  • a tool such as a screw driver or the like, may be used to assist this process through interaction with catch 1330.
  • each piercable membrane 1324 may be pierced in order that a tool may be inserted through each aperture 1323 to help assist levering respective latches 1329 out from behind respective side walls of upper retaining cavity 1122.
  • rigid lock member 1310 is free to move upwardly and out through upper retaining aperture 1122.
  • a tool may be inserted through generally aligned recesses 1242 and 1123 to assist in this process.
  • Tooth 1100 is then free to be removed from adaptor 1200.
  • the excavator wear assembly of the invention and the lock assembly for securing the wear member in the form of tooth 1100 to adaptor 1200 avoid the need for threaded components and complex parts. Furthermore, the lock assembly avoids the need for heavy hammers and the like for mounting within the respective retaining apertures and retaining cavities. In this way, the invention provides for an effective method of releasably securing the tooth to the adaptor.

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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 porte sur un ensemble verrou pour fixer de façon libérable une dent d'excavatrice sur un nez d'une excavatrice. L'ensemble verrou comporte un élément de verrou rigide comportant une partie base et une partie maintien s'étendant à partir de la partie base. La partie base est apte à être disposée dans une cavité de maintien du nez, et la partie maintien est apte à s'étendre au moins partiellement dans une ouverture de maintien de l'élément d'usure. L'ensemble verrou comporte également un élément de verrou élastiquement déformable, apte à être disposé, lors de l'utilisation à l'intérieur de la cavité de maintien du nez de façon à buter contre une face supérieure de l'élément de verrou rigide, de façon à maintenir ainsi captive la partie base de l'élément de verrou rigide dans la cavité de maintien et la partie maintien au moins partiellement à l'intérieur de l'ouverture de maintien, de telle sorte que des parois latérales de la partie maintien de l'élément de verrou rigide portent contre des parois latérales complémentaires de l'ouverture de maintien de l'élément d'usure et que des faces de portée opposées de la partie base de l'élément de verrou rigide s'opposent à des parois latérales respectives de la cavité de maintien du nez de l'excavatrice et s'engagent avec celles-ci, de façon à fixer ainsi de façon libérable l'élément d'usure sur le nez de l'excavatrice.
PCT/AU2009/000488 2008-04-18 2009-04-20 Ensemble verrou pour élément d'usure d'excavatrice WO2009127016A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/988,494 US20110058894A1 (en) 2008-04-18 2009-04-20 A lock assembly for an excavator wear member
AU2009238226A AU2009238226C1 (en) 2008-04-18 2009-04-20 A lock assembly for an excavator wear member
CA2721781A CA2721781C (fr) 2008-04-18 2009-04-20 Ensemble verrou pour element d'usure d'excavatrice

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2008901939 2008-04-18
AU2008901939A AU2008901939A0 (en) 2008-04-18 A lock for an excavator wear member

Publications (1)

Publication Number Publication Date
WO2009127016A1 true WO2009127016A1 (fr) 2009-10-22

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PCT/AU2009/000488 WO2009127016A1 (fr) 2008-04-18 2009-04-20 Ensemble verrou pour élément d'usure d'excavatrice

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Country Link
US (1) US20110058894A1 (fr)
AU (1) AU2009238226C1 (fr)
CA (1) CA2721781C (fr)
WO (1) WO2009127016A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011069183A1 (fr) * 2009-12-11 2011-06-16 Cqms Pty Ltd Ensemble de verrouillage pour élément d'usure d'excavatrice
WO2012012828A1 (fr) * 2010-07-29 2012-02-02 Bradken Resources Pty Limited Ensemble dent d'excavation
AU2013100565B4 (en) * 2009-12-11 2014-01-23 Cqms Pty Ltd A lock assembly for an excavator wear member
US8943716B2 (en) 2011-10-10 2015-02-03 Caterpillar Inc. Implement tooth assembly with tip and adapter
US8943717B2 (en) 2011-10-08 2015-02-03 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9057177B2 (en) 2011-10-08 2015-06-16 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9062436B2 (en) 2011-10-07 2015-06-23 Caterpillar Inc. Implement tooth assembly with tip and adapter
US9476184B2 (en) 2011-12-08 2016-10-25 Cqms Pty Ltd Excavator wear assembly
US10011977B2 (en) 2011-09-08 2018-07-03 Miguel Guimaraes Lock assembly for an excavator wear member

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Publication number Priority date Publication date Assignee Title
IN2015DN01533A (fr) * 2012-12-18 2015-07-03 Komatsu Mfg Co Ltd
US9139984B2 (en) * 2013-07-30 2015-09-22 Caterpillar Inc. Retainer systems for ground engaging tools
US9290914B2 (en) * 2013-08-01 2016-03-22 Caterpillar Inc. Ground engaging tool assembly
US9441349B2 (en) * 2013-08-01 2016-09-13 Caterpillar Inc. Ground engaging tool assembly
US9441351B2 (en) * 2013-08-01 2016-09-13 Caterpillar Inc. Ground engaging tool assembly
US9605539B2 (en) * 2015-02-11 2017-03-28 Joy Mm Delaware, Inc. Advancing ram pin retention device
EP3205781A1 (fr) 2016-02-12 2017-08-16 Metalogenia Research & Technologies S.L. Partie femelle, dispositif de retenue et système de broche pour excavateurs et analogue
US10494793B2 (en) 2016-12-15 2019-12-03 Caterpillar Inc. Implement tip assembly having tip with support rib
US10480162B2 (en) 2016-12-15 2019-11-19 Caterpillar Inc. Implement ground engaging tip assembly having tip with tapered retention channel

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CN108118744A (zh) * 2009-12-11 2018-06-05 昆士兰中部矿业供应有限公司 挖掘机耐磨组件
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AU2013100565B4 (en) * 2009-12-11 2014-01-23 Cqms Pty Ltd A lock assembly for an excavator wear member
CN102686811B (zh) * 2009-12-11 2014-10-22 昆士兰中部矿业供应有限公司 用于挖掘机耐磨构件的锁定组件
AU2012100453C4 (en) * 2009-12-11 2015-01-22 Cqms Pty Ltd A lock assembly for an excavator wear member
US11193256B2 (en) 2009-12-11 2021-12-07 Cqms Pty Ltd Lock assembly for an excavator wear member
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US10385548B2 (en) 2009-12-11 2019-08-20 Cqms Pty Ltd Lock assembly for an excavator wear member
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CA2721781A1 (fr) 2009-10-22
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AU2009238226C1 (en) 2015-04-02
US20110058894A1 (en) 2011-03-10
AU2009238226B2 (en) 2012-09-06

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