WO2015017894A1 - Blindage résistant à l'usure pour ensemble de machines d'exploitation minière - Google Patents

Blindage résistant à l'usure pour ensemble de machines d'exploitation minière Download PDF

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Publication number
WO2015017894A1
WO2015017894A1 PCT/AU2014/000796 AU2014000796W WO2015017894A1 WO 2015017894 A1 WO2015017894 A1 WO 2015017894A1 AU 2014000796 W AU2014000796 W AU 2014000796W WO 2015017894 A1 WO2015017894 A1 WO 2015017894A1
Authority
WO
WIPO (PCT)
Prior art keywords
armour
pieces
wear
main body
mining machinery
Prior art date
Application number
PCT/AU2014/000796
Other languages
English (en)
Inventor
Michael Graham WORTHINGTON
Lin William VOGLER
Original Assignee
Mining Innovations Australia 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 AU2013903018A external-priority patent/AU2013903018A0/en
Application filed by Mining Innovations Australia Pty Ltd filed Critical Mining Innovations Australia Pty Ltd
Publication of WO2015017894A1 publication Critical patent/WO2015017894A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • 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
    • E02F9/285—Teeth characterised by the material used
    • 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

Definitions

  • the present invention relates to wear-resistant armour for protecting mining machinery parts subject to high wear and relates particularly, though not exclusively, to such a wear-resistant armour for buckets, ground-engaging tools provided on the buckets, and the track pads of excavators of the kind used at mine sites.
  • the present invention was developed with a view to providing wear-resistant armour for GET components and buckets on mining excavators. It will be apparent that the same wear-resistant armour may also be employed on similar parts of other types of mining machinery which are subject to high wear, such as track pads on a continuous tracked vehicle.
  • a mining machinery component with wear-resistant armour comprising: a main body made of metal material; and a plurality of armour pieces made of a suitably wear-resistant material embedded in a surface of the main body whereby, in use, the armour pieces improve the wear resistance of the component while it is engaging ground material and significantly extend its service life.
  • the plurality of armour pieces is arranged in a pattern adapted to promote the rolling of the ground material over the surface of the main body rather than gouging into the surface.
  • each armour piece may be temporarily secured in its recess by an adhesive or bead of weld material designed to hold it in place while the armour piece beds-in during use.
  • the armour pieces are in the form of strips of the suitably wear-resistant material. In another the armour pieces are in the form of disks or buttons of the suitably wear-resistant material.
  • the plurality of armour pieces is arranged in a pattern so as to lie substantially transverse to the direction of ground material movement.
  • the plurality of armour pieces is arranged in a chevron or herringbone pattern.
  • the mining machinery component is a GET component.
  • the mining machinery component is an excavator bucket.
  • the plurality of armour pieces is arranged on the walls and floor of the bucket.
  • the mining machinery component is a track pad for a continuous track.
  • the plurality of armour pieces is arranged so as to lie substantially transverse to the direction of travel of the track over the ground.
  • the suitably wear-resistant material is tungsten carbide.
  • a GET component for mining machinery, with wear-resistant armour
  • the GET component comprising: a main body made of metal material; and a plurality of armour pieces made of a suitably wear-resistant material embedded in a surface of the main body whereby, in use, the armour pieces improve the wear resistance of the GET component while it is engaging ground material and significantly extend its service life.
  • an excavator bucket for mining machinery, with wear-resistant armour
  • the bucket comprising: a main body made of metal material; and a plurality of armour pieces made of a suitably wear-resistant material embedded in a surface of the main body whereby, in use, the armour pieces improve the wear resistance of the bucket while it is engaging ground material and significantly extend its service life.
  • a track pad for a continuous track, with wear-resistant armour
  • the track pad comprising: a main body made of metal material; and a plurality of armour pieces made of a suitably wear-resistant material embedded in a surface of the main body whereby, in use, the armour pieces improve the wear resistance of the track pad while it is engaging the ground and significantly extend its service life.
  • Figure 1 is a top plan view of a first embodiment of a mining machinery component according to the present invention, in the form of a GET component, with recesses formed in a surface of its main body ready to receive a plurality of armour pieces therein;
  • Figure 2 is a top perspective view of the GET component of Figure 1 showing the armour pieces being inserted into the recesses;
  • Figure 3 is a perspective view of the GET component of Figure 1 with the armour pieces embedded in the surface of the main body;
  • Figure 4 is a top plan view of a second embodiment of a mining machinery component according to the present invention, in the form of a GET component, with recesses formed in a surface of its main body ready to receive a plurality of armour pieces therein;
  • Figure 5 is a top perspective view of the GET component of Figure 4 showing the armour pieces being inserted into the recesses;
  • Figure 6 is a perspective view of the GET component of Figure 4 with the armour pieces embedded in the surface of the main body;
  • Figures 7a and 7b are a top perspective view and a bottom perspective view respectively of a third embodiment of a mining machinery component according to the present invention, in the form of a GET component, with armour pieces embedded in the surface of the main body;
  • Figures 8a, 8b and 8c are a top plan view, side view and bottom plan view respectively of the GET component shown in Figure 7;
  • FIG. 9 is a top perspective view of a fourth embodiment of a mining machinery component according to the present invention, in the form of an excavator bucket, with recesses formed in a surface of its main body ready to receive a plurality of armour pieces therein;
  • FIG 10 is a top perspective view of a fifth embodiment of a mining machinery component according to the present invention, in the form of a track pad, with recesses formed in a surface of its main body ready to receive a plurality of armour pieces therein; and,
  • FIG 11 is a top perspective view of a sixth embodiment of a mining machinery component according to the present invention, in the form of a track pad, with recesses formed in a surface of its main body ready to receive a plurality of armour pieces therein.
  • a first embodiment of a mining machinery component with wear-resistant armour in accordance with the invention in the form of a GET component 10 as iliustrated in Figures 1-3, comprises a main body 12 made of metal materia!.
  • the GET component is a tooth 10 for a bucket of an excavator made from cast metal material. This means the tooth 10 is relatively soft compared to other materials used for digging purposes and therefore it has poor wear properties.
  • Other GET components for attachment to buckets, to assist in penetrating the ground include adapters, iip shrouds, wing shrouds and heel blocks.
  • a plurality of armour pieces 14 made of a suitably wear-resistant material is embedded in a surface of the main body 12 of the tooth 0.
  • the armour pieces 14 improve the wear resistance of the GET component 10 while it is engaging ground material and significantly extend its service life.
  • the suitably wear-resistant material is tungsten carbide.
  • any suitably wear- resistant material may be employed, for example, a ceramic material.
  • FIG. 1 shows a series of grooves 16 formed in the surface of the main body 12 of the tooth 0 ready to receive a plurality of armour pieces 14 therein.
  • the armour pieces are in the form of linear strips 14 of tungsten carbide.
  • the grooves 16 are typically about 5mm wide and 10mm deep.
  • the plurality of armour pieces 14 (and hence also the series of recesses 16) is arranged in a pattern adapted to promote the rolling of the ground material over the surface of the main body 12 rather than sliding and gouging into the surface of the main body 12.
  • the spacing and angled arrangement of the strips 14 encourages this rolling movement of the soil and rock material over the surface of the tooth 10, further reducing the abrasive wear of this surface.
  • the strips 14 of tungsten carbide are arranged in a herringbone pattern.
  • Figure 2 illustrates the strips 14 of tungsten carbide being inserted into their respective recesses 16 on both the upper and lower surfaces of the tooth 10.
  • the harder or wear-resistant inserts 14 start to sit slightly proud of the main body 12. As material passes over these slightly raised armour pieces 14 the material is lifted up / deflected from the surface of the main body 12, reducing contact with the main body and reducing the abrasion / gouging energy absorbed by the main body 12. Ground material, e.g. rock, which has a large particle size relative to the spacing between wear the armour pieces 14 tends to rollover the armour pieces without making significant sliding contact with the main body 12. Ground material with a smaller particle size relative to the spacing between the armour pieces will re- contact the main body 12 resulting in some abrasion but at a reduced rate.
  • the spacing between the armour pieces 14, where possible, may be tuned to the particle size of the material passing over the surface of the main body 14 of the machine.
  • the wear elements or armour pieces 14 on the main body 12 they are preferably positioned so as to lie substantially transverse to the direction of ground material movement.
  • a chevron or herringbone pattern may be employed depending on the original shape of the main body 14 of the apparatus. This has the effect of maintaining a penetrating point shape.
  • the angle of the armour pieces 14 relative to the direction of ground movement will vary from apparatus to apparatus.
  • round wear buttons may be employed. As with the strips, these are recessed into the main body 12 of the apparatus.
  • each strip 14 of tungsten carbide may be temporarily secured in its recess 16 using an adhesive or by a bead 18 of weld material, as shown in Figure 3.
  • the weld material 18 is designed to hold the armour piece 14 in place while it beds-in during use.
  • Figures 4 to 6 illustrate a second embodiment of a GET component 20 with wear-resistant armour in accordance with the invention.
  • This embodiment is similar to the first embodiment, and hence the similar parts will not be described again in detail.
  • the main difference is that in this embodiment the armour pieces, embedded in a main body 22 of the tooth 20, are in the form of disks or buttons 24 of a suitably wear-resistant material.
  • the disks or buttons 24 are also made of tungsten carbide.
  • the disks or buttons 24 are arranged in a pattern adapted to promote the rolling of the ground material over the surface of the main body 22 rather than gouging into the surface.
  • the disks or buttons 24 of tungsten carbide are arranged in a herringbone pattern, as can be seen most clearly in Figure 4.
  • the armour pieces, in the form of disks or buttons 24, can also be embedded in the side walls of the tooth 20, as shown in Figures 5 and 6, to improve the wear- resistance of these surfaces.
  • each of the disks or buttons 24 of tungsten carbide may be temporarily secured in its recess 26 by a bead 28 of weld material, as shown in Figure 6.
  • the weld material 28 is designed to hold the armour piece 24 in place while it beds-in during use.
  • Figures 7 and 8 illustrate a third embodiment of a GET component 30 with wear-resistant armour in accordance with the invention. This embodiment is similar to the first embodiment, and hence the similar parts will not be described again in detail.
  • the GET component is a tooth 30 for a bucket of an excavator.
  • a plurality of armour pieces 34 made of a suitably wear-resistant material is embedded in a surface of a main body 32 of the tooth 30.
  • a series of recesses 36 are formed in the surface of the main body 32, the recesses 36 being shaped to receive the respective armour pieces 34 therein in a close fit.
  • the armour pieces are in the form of linear strips 34 of tungsten carbide, again arranged in a herringbone pattern. The spacing and angled arrangement of the strips 34 encourages a rolling movement of the soil and rock material over the surface of the tooth 30, further reducing the abrasive wear of this surface.
  • a similar arrangement of the linear strips 34 is provided on both the upper and lower surfaces of the body 32 of the tooth 30.
  • a fourth embodiment of a mining machinery component with wear-resistant armour in accordance with the invention in the form of an excavator bucket 40 as illustrated in Figure 9, comprises a main body 42 made of metal material.
  • the bucket 40 is for an excavator, and is main body or shell 42 is made from hardened stee! plate material.
  • the plates the bucket is made of have to be welded together and the plates also need to have a certain degree of flexibility whilst the bucket is in use, there is a limit to the hardness of the steel plate that can be used. This means that the steel plate is significantly softer than other harder wear-resistant materials available.
  • the present invention overcomes the weight problems caused by adding extra wear products to the exterior surfaces of the bucket shell 42, by modifying the surface of the main body of the bucket shell 42 itself to form a light armour for the bucket 40.
  • a plurality of armour pieces 44 made of a suitably wear-resistant material is embedded in a surface of the main body 42 of the bucket 40. In use, the armour pieces 44 improve the wear resistance of the bucket 40 while it is engaging ground material and significantly extend its service life.
  • the suitably wear-resistant material is tungsten carbide.
  • any suitably wear-resistant material may be employed, for example, a ceramic material.
  • FIG. 9 shows series of slots 46 formed in the surface of the shell 42 of the bucket 40 in which a plurality of armour pieces 14 have been inserted.
  • the slots are cut into the walls and floor of the bucket shell 42. The depth and spacing of the slots is determined by the type and size of the bucket 40.
  • the armour pieces are in the form of linear strips 44 of tungsten carbide.
  • the slots 46 are typically about 5mm wide and 10mm deep.
  • the plurality of armour pieces 44 (and hence also the series of recesses 46) is arranged in a pattern adapted to promote the rolling of the ground material over the surface of the main body 42 rather than gouging into the surface of the bucket 40.
  • the spacing and angled arrangement of the strips 44 encourages this rolling movement of the soil and rock material over the surface of the bucket 40, further reducing the abrasive wear of the bucket surfaces.
  • the strips 44 of tungsten carbide are arranged in parallel lines substantially transverse to the direction of travel of the bucket 40 as it excavates the ground material.
  • each strip 44 of tungsten carbide may be temporarily secured in its recess 46 by a bead 48 of weld material (not visible).
  • the weld material 48 is designed to hold the armour piece 44 in place while it beds-in during use.
  • discs or buttons of a suitably wear-resistant material may be used in place of, or in addition to, the strip armour pieces.
  • the discs or buttons are received in recesses formed in the surface of the main body 42 of the bucket 40, the recesses being shaped to receive the respective armour pieces therein in a close fit.
  • sheets of thin stee! plate e.g. 8mm thick Biz 80 can be pre-slotted or have recesses pre-drilied, then cut and welded onto the surface of an existing bucket and the slots then filled with the hardened material strips or the holes filled with hardened material buttons or disks.
  • a fifth embodiment of a mining machinery component with wear-resistant armour in accordance with the invention in the form of a track pad 50 for a continuous track (not shown) as illustrated in Figure 10, comprises a main body 52 made of metal material.
  • the track pad 50 is a steel tread plate for a continuous track of an excavator.
  • a plurality of such track pads 50 are joined together, end to end, in a continuous band to form the track for an excavator.
  • a plurality of armour pieces 54 made of a suitably wear-resistant material is embedded in a surface of the main body 52 of the track pad 50. In use, the armour pieces 54 improve the wear resistance of the track pad 50 while it is engaging the ground and significantly extend its service life.
  • the suitably wear-resistant material is tungsten carbide. However, it will be understood that any suitably wear-resistant material may be employed, for example, a ceramic material.
  • FIG. 10 shows series of grooves 56 formed in the surface of the main body 52 of the track pad 50 ready to receive a plurality of armour pieces 54 therein.
  • the armour pieces are in the form of linear strips 54 of tungsten carbide.
  • the grooves 56 are typically about 5mm wide and 10mm deep.
  • the plurality of armour pieces 54 (and hence also the series of recesses 56) is arranged in a pattern adapted to promote the rolling of the ground material under the surface of the main body 52 rather than gouging into the surface of the main body 52.
  • the spacing and angled arrangement of the strips 54 encourages this rolling movement of the soil and rock material over the surface of the track pad 50, further reducing the abrasive wear of this surface.
  • the strips 54 of tungsten carbide are arranged substantially transverse to the direction of travel.
  • each strip 54 of tungsten carbide may be temporarily secured in its recess 56 by a bead 58 of weld material.
  • the weld material 58 is designed to hold the armour piece 54 in place while it beds-in during use.
  • Figure 11 illustrates a sixth embodiment of a track pad 60 with wear- resistant armour in accordance with the invention. This embodiment is similar to the fifth embodiment, and hence the similar parts will not be described again in detail. The main difference is that in this embodiment the armour pieces, embedded in a main body 52 of the pad 60, are in the form of disks or buttons 64 of a suitably wear-resistant material. In this embodiment the disks or buttons 64 are also made of tungsten carbide.
  • the disks or buttons 64 are arranged in a pattern adapted to promote the rolling of the ground material over the surface of the main body 52 rather than gouging into the surface.
  • the disks or buttons 64 of tungsten carbide are arranged in a line substantially transverse to the direction of travel, as can be clearly seen in Figure 1.
  • each of the disks or buttons 64 of tungsten carbide may be temporarily secured in its recess 66 by a bead 68 of weld material.
  • the weld material 68 is designed to hold the armour piece 64 in place while it beds-in during use.
  • the GET component and the track pad with wear-resistant armour can be used as a replacement part for a worn standard GET component without any modification required to the mining machine.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un élément de machine d'exploitation minière ayant un blindage résistant à l'usure, sous la forme d'un élément GET 10, qui comprend un corps principal 12 constitué de matériau métallique. Une pluralité de pièces de blindage 14, constituée d'un matériau résistant à l'usure approprié, est intégrée dans une surface du corps principal 12 de la dent 10. Généralement, une série de renfoncements 16 est formée dans la surface du corps principal 12, les renfoncements 16 étant formés pour recevoir les pièces de blindage respectives 14 à l'intérieur de ces derniers à ajustement. De préférence, la pluralité de pièces de blindage 14 est agencée d'une façon conçue pour favoriser le roulement du matériau de sol sur la surface du corps principal 12 plutôt que de coulisser le long de la surface du corps principal 12 et de creuser dans cette dernière. L'agencement d'espacement et incliné des bandes 14 entraîne ce mouvement de roulement du matériau de sol et de roche sur la surface de la dent 10, réduisant ainsi l'usure par abrasion de cette surface.
PCT/AU2014/000796 2013-08-09 2014-08-08 Blindage résistant à l'usure pour ensemble de machines d'exploitation minière WO2015017894A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
AU2013903018A AU2013903018A0 (en) 2013-08-09 Bucket light armour
AU2013903018 2013-08-09
AU2013903017 2013-08-09
AU2013903015A AU2013903015A0 (en) 2013-08-09 Ground engaging tool armour
AU2013903015 2013-08-09
AU2013903017A AU2013903017A0 (en) 2013-08-09 Track pad armour

Publications (1)

Publication Number Publication Date
WO2015017894A1 true WO2015017894A1 (fr) 2015-02-12

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Application Number Title Priority Date Filing Date
PCT/AU2014/000796 WO2015017894A1 (fr) 2013-08-09 2014-08-08 Blindage résistant à l'usure pour ensemble de machines d'exploitation minière

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Country Link
WO (1) WO2015017894A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9863119B2 (en) 2015-11-09 2018-01-09 Caterpillar Inc. Wear member
CN109518743A (zh) * 2018-11-30 2019-03-26 马鞍山金顺来工业设计有限公司 一种装载机铲斗及装载机
CN109518755A (zh) * 2018-11-30 2019-03-26 马鞍山金顺来工业设计有限公司 一种挖掘机斗齿
US20190368164A1 (en) * 2016-11-17 2019-12-05 Doosan Infracore Co., Ltd. Construction machine bucket part and manufacturing method therefor
US10543985B2 (en) * 2015-01-19 2020-01-28 Flsmidth A/S Interlocking wear-resistant panel system
WO2020076080A1 (fr) * 2018-10-10 2020-04-16 성보공업주식회사 Dent de godet d'excavatrice et procédé de fabrication associé
CN111533404A (zh) * 2020-05-06 2020-08-14 中科博联(遵化)环保装备有限公司 一种污泥好氧发酵处理系统中的铲斗
WO2021221803A1 (fr) * 2020-04-29 2021-11-04 Caterpillar Inc. Segment d'angle présentant des saillies sur des zones d'usure

Citations (5)

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Publication number Priority date Publication date Assignee Title
US3912338A (en) * 1974-02-21 1975-10-14 Kennametal Inc Wear resistant grouser bar
US4547985A (en) * 1979-03-20 1985-10-22 Sherritt Gordon Mines Limited Method of protecting a metallic surface susceptible to abrasion by rock-like material
US6017103A (en) * 1998-06-30 2000-01-25 Caterpillar Inc. Track shoe
JP2003147812A (ja) * 2001-11-12 2003-05-21 Kyuken Service Kk 金属摩耗部の補強構造および補強方法
US20090047543A1 (en) * 2007-08-15 2009-02-19 Mikhail Garber Abrasion and impact resistant composite castings for working in condition of wear and high dynamic loads

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912338A (en) * 1974-02-21 1975-10-14 Kennametal Inc Wear resistant grouser bar
US4547985A (en) * 1979-03-20 1985-10-22 Sherritt Gordon Mines Limited Method of protecting a metallic surface susceptible to abrasion by rock-like material
US6017103A (en) * 1998-06-30 2000-01-25 Caterpillar Inc. Track shoe
JP2003147812A (ja) * 2001-11-12 2003-05-21 Kyuken Service Kk 金属摩耗部の補強構造および補強方法
US20090047543A1 (en) * 2007-08-15 2009-02-19 Mikhail Garber Abrasion and impact resistant composite castings for working in condition of wear and high dynamic loads

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10543985B2 (en) * 2015-01-19 2020-01-28 Flsmidth A/S Interlocking wear-resistant panel system
US9863119B2 (en) 2015-11-09 2018-01-09 Caterpillar Inc. Wear member
US20190368164A1 (en) * 2016-11-17 2019-12-05 Doosan Infracore Co., Ltd. Construction machine bucket part and manufacturing method therefor
US11814819B2 (en) * 2016-11-17 2023-11-14 Doosan Infracore Co., Ltd Construction machine bucket part and manufacturing method therefor
WO2020076080A1 (fr) * 2018-10-10 2020-04-16 성보공업주식회사 Dent de godet d'excavatrice et procédé de fabrication associé
CN109518743A (zh) * 2018-11-30 2019-03-26 马鞍山金顺来工业设计有限公司 一种装载机铲斗及装载机
CN109518755A (zh) * 2018-11-30 2019-03-26 马鞍山金顺来工业设计有限公司 一种挖掘机斗齿
WO2021221803A1 (fr) * 2020-04-29 2021-11-04 Caterpillar Inc. Segment d'angle présentant des saillies sur des zones d'usure
US11499298B2 (en) 2020-04-29 2022-11-15 Caterpillar Inc. Corner segment having protrusions on wear zones
CN115427638A (zh) * 2020-04-29 2022-12-02 卡特彼勒公司 磨损区具有突出部的拐角段
CN111533404A (zh) * 2020-05-06 2020-08-14 中科博联(遵化)环保装备有限公司 一种污泥好氧发酵处理系统中的铲斗
CN111533404B (zh) * 2020-05-06 2022-05-13 中科博联(遵化)环保装备有限公司 一种污泥好氧发酵处理系统中的铲斗

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