AU2010251765A1 - Wear plate for cable handler - Google Patents
Wear plate for cable handler Download PDFInfo
- Publication number
- AU2010251765A1 AU2010251765A1 AU2010251765A AU2010251765A AU2010251765A1 AU 2010251765 A1 AU2010251765 A1 AU 2010251765A1 AU 2010251765 A AU2010251765 A AU 2010251765A AU 2010251765 A AU2010251765 A AU 2010251765A AU 2010251765 A1 AU2010251765 A1 AU 2010251765A1
- Authority
- AU
- Australia
- Prior art keywords
- wear plate
- plate
- wear
- opposed
- clip
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000003292 glue Substances 0.000 claims abstract description 6
- 239000000853 adhesive Substances 0.000 claims abstract description 3
- 230000001070 adhesive effect Effects 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 5
- 239000002991 molded plastic Substances 0.000 claims description 3
- 239000003245 coal Substances 0.000 description 12
- 239000004677 Nylon Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005065 mining Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/12—Hauling- or hoisting-chains so called ornamental chains
- F16G13/16—Hauling- or hoisting-chains so called ornamental chains with arrangements for holding electric cables, hoses, or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/04—Distributing means for power supply in mines
- E21F17/06—Distributing electric power; Cable networks; Conduits for cables
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Electric Cable Arrangement Between Relatively Moving Parts (AREA)
Abstract
A moulded wear plate (10) for a link of a cable handler (100) is adapted to quickly clip onto the cable handler and attach to the same without the need for glue, adhesive or the like. The wear plate (10) is generally planar and defines clips (22) which in use locate either side of the centre wall (101) of a link of the cable handler. The clips may define a lip or overhang (24) for retaining the wear plate (10) on the cable handler. In use wear plates are attached to the top and/or bottom of the cable handlers. After use worn wear plates can be removed using a tool inserted between the cable handler and the wear plate to lever the wear plate off. Each wear plate may incorporate a wear indicator.
Description
WO 2010/132936 PCT/AU2010/000595 Wear Plate for Cable Handler Cross-Reference to Related Applications This application claims priority from Australian provisional patent application No 2009902302 entitled "Wear Plate for Cable handler" filed on 20 May 2010 the 5 entire contents of which are incorporated herein by reference. Field of the Invention This invention relates to a wear plate for a dynamic cable handler. Cable handlers are used for protecting electric cables, water hoses and the like (hereinafter 10 referred to as lines or service lines), particularly, but not exclusively, in underground mine workings. Background of the Invention During mining operations, it is necessary to protect a variety of electrical cables, 15 water hoses and other service lines from damage. Articulated cable handlers are used to perform this function. One particular area where cable handlers are required, is in the area of coal mining, particularly in long wall coal mining, in which a coal cutter traverses back and forth across a coal face, depositing coal cut from the coal face into a conveyor disposed behind the coal cutter. In order to function, the coal cutter requires 20 a supply of water and electricity, which are provided by the service lines. The service lines are located in a trough which is typically disposed on the opposite side of the conveyor from the coal cutter. The lines travel up and down the trough as the coal cutter moves along the coal face. In order to protect such service lines it is known to enclose, or least partially 25 enclose them in a protective articulated cable handler formed from a plurality of inter connected links. International Patent application W02006/039750, the entire contents of which are incorporated herein by reference, discloses one such cable handler formed from a plurality of interconnected links. In W02006/039750, each link of the cable handle has a body portion having a 30 first wall and two opposed side arms integral with and extending generally perpendicular to the first wall and defining a channel for receiving one or more service lines. The side arms are flexible and define free ends and may be deflected inwards, and outwards for receiving service lines. Each free end defines engaging formations. A closure means includes an end wall from which extend two relatively shorter side 35 arms which define complementary engaging formations. The side arms deflect towards each other to engage and disengage the closure means from the body portion. SUBSTITUTE SHEET (RULE 26) RO/AU WO 2010/132936 PCT/AU2010/000595 2 W02006/039750 discloses that such cable handlers may be side pulls, twin pulls or tri pulls. It has been found that, in use, certain links in a cable handler tend to wear more that others particularly with twin and tri pull totally enclosed cable handlers. This 5 creates problems as the high wear links have to be replaced more often than the lower wear links and means that the cable handlers are out of action for repair and replacement of links more often than is desirable, affecting mine productivity. The present invention aims to alleviate the above mentioned cable handler wear problems. 10 Any discussion of documents, acts, materials, devices, articles or the like which has been included in the present specification is solely for the purpose of providing a context for the present invention. It is not to be taken as an admission that any or all of these matters form part of the prior art base or were common general knowledge in the field relevant to the present invention as it existed before the priority date of each claim 15 of this application. Throughout this specification the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps. 20 Summary of the Invention In a first broad aspect the present invention provides a wear plate for a cable handler which is adapted to quickly clip onto the cable handler and attach to the same without the need for glue, adhesive or the like. 25 Typically the wear plate will be made of a moulded plastics material of similar hardness to the cable handler, such as, nylon. In a preferred embodiment, the wear plate in generally planar and defines clips which in use locate either side of the centre wall of a link of a cable handler. The links may define a lip or overhang for retaining the wear plate on the cable handler. The top 30 portion of each clip may be rounded. The thickness of the wear plate is not critical, but may be in the range of 8 to 12mm, or more, and is typically about 10mm. In a particularly preferred embodiment a groove extends along the central longitudinal axis of the wear plate parallel to side edges of the plate. The groove is 35 preferably rounded, and typically about 4 to 8mm deep, typically about 6mm deep. The plate may also define side walls extending along its side edges for stability.
WO 2010/132936 PCT/AU2010/000595 3 In use the wear plates are attached to the top and/or bottom of the cable handlers In practice the wear plates need and typically will only be used where extreme wear occurs in cable handlers which is typically at the "mid point" of the cable handler/spill plate. These wear plates are placed on the top and bottom of the cable 5 handler links to cater for movement in opposite directions. The wear plates are made to be an interference fit and the cable handlers typically will require some force, such as a mallet or hammer, in order to attach the wear plate. After use the wear plate can be removed using a tool inserted between the cable handler and the wear plate to lever the wear plate off. Each wear plate can 10 incorporate a wear indicator. In one preferred aspect there is provided a wear plate for a cable handler comprising a generally planar body portion, defining two opposed side walls extending along two opposed edges of the planar body portion, and a pair of spaced apart clips located on each side wall, each clip defining a lip which projects towards the opposed 15 clip, and wherein the head of each clip is rounded to assist in deflecting the clips away from the centre of.the plate during attachment of the wear plate to a chain link. The invention also provides a combination of a wear plate and a chain link of a cable handler attached to the chain link, the chain link comprising a central wall having a width W at its base, and two pairs of side arms extending away from opposed sides of 20 the central wall and defining opposed channels for receiving service lines, the wear plate comprising a generally planar body portion, defining two opposed side edges of the planar body portion, and a pair of spaced apart clips located on each side edge, separated by a distance approximately equal to W, each clip defining a lip which projects towards the opposed clip, and wherein the head of each clip is rounded to 25 assist in deflecting the clips away from the centre of the plate during attachment of the wear plate to a chain link and wherein the wear plate is an interference fit on the chain link and attaches to the same without glue, pins, bolts or the like. Brief Description of the Drawings 30 A specific embodiment of the present invention will now be described, by way of example only, with reference to the accompanying drawings in which: Figure 1 is a plan view of a wear plate embodying the present invention; Figure 2 is a side view of the wear plate of Figure 1; Figure 3 is an end view of the wear plate of Figure 1; 35 Figure 4 is perspective view of the wear plate of Figure 1; and Figure 5 shows a variant of the wear plate attached to a cable handler.
WO 2010/132936 PCT/AU2010/000595 4 Detailed Description of Preferred Embodiments Referring to the drawings, Figures 1 to 4 show a wear plate 10 embodying the present invention. The wear plate is for attachment to a link of a cable handler. Figure 5 5 shows a similar wear plate 10a attached to a link of the cable handler 100such as is shown and described in W02006/039750. The wear plate is made from nylon having a hardness similar to that of the cable handler itself. The wear plate may be moulded or machined. By way of background, Figure 5 shows a triple or tri pull chain link 100. The 10 link has a central wall 101 having a greatest width W at its base, and two pairs of parallel side arms 102, 104 extending away from either side of the central wall 101 and defining opposed channels for receiving service lines. A steel insert, not shown, is embedded in the central wall 101 which define holes for joining the link to a similar link. The link is made of moulded nylon. The free ends 102a and 104a of the side 15 arms define engaging formations in the form of a channel and rebate (not visible). End walls 106 are provided for closing the channels. The end walls 106 define short side arms which have complementary engaging formations which engage with those of the free ends 102a and 104a of the side arms. Each of the end walls 106 includes an embedded steel insert (not shown) defining holes for joining the link to a similar link. 20 As described in W02006/039750 variants of the link are possible in which the linkage is in the central wall only for a centre pull link or in the end walls only for a twin pull link. The reader should refer to W02006/039750 for a more detailed description of the cable handler link and variants. Figures 1 to 4 show an embodiment of a wear plate 10 for use with the chain 25 link 100. The wear plate is generally rectangular in plan view but has bevelled ends 12. As best seen in Figures 3 and 4, in cross section the wear plate is generally U shaped defining a generally rectangular planar body portion 14 and relatively short side walls 16 which extend upwards from opposed side edges of the planar portion 14. The side walls 16 extend along the length of the plate 10. Whilst the dimensions and thickness 30 of the wear plate are not critical, and can be varied, in the described embodiment, the thickness of the planar portion 14 is about 10mm. This thickness will diminish during use as the plate wears. The plate defines a generally planar inner surface 18 defined by one surface of the planar portion 14 for engagement with the top or bottom of the cable handler 100. 35 However, in the centre of that generally planar surface there is a channel 21 which extends along the central longitudinal axis L of the wear plate. In the specific WO 2010/132936 PCT/AU2010/000595 5 embodiment the channel is about 6mm deep and 8mm wide however, the dimensions may be varied. The plate may flex about the groove due to the reduced thickness of the groove and the flexibility of the nylon material from which the plate is made. The outer or external surface of the wear plate which is best shown in Figures 3 and 4 5 defines radiused/rounded corners 17 which tend to reduce the affects of wear and abrasion on the wear plate with fragments of coal, rock or the like. Two pairs of clips 22 (four in total) extend up from the side walls 16 either side of the central axis C of the wear plate. The head or top part 24 of each clip defines a lip or overhang 26 which projects in from the side wall 16 of the wear plate, best seen in 10 Figure 3. The head of each clip is curved/rounded. Each pair of clips is spaced apart by a distance W equivalent to the width/thickness of the base of the centre wall 101 of the cable handler. There are four upstanding protrusions 28 located adjacent each corner of the wear plate. 15 In use, with reference to Figure 5, in order to attach the wear plate 10 to the cable handler 100, it is simply placed in position over the cable handler optionally with a lubricant such as soapy water disposed on the cable handler The wear plate 10 is simply pushed or more typically struck with a mallet or the like to force the wear plate onto the cable handle by deflecting the four clips 22 outwards prior to their snap fitting 20 over the outer surface of the cable handler. This occurs as a result of flexing of the clips themselves and also flexing of the planar portion 14 about the channel 21. The rounded upper surfaces 24 of the clips assist in this process and help deflect the clips outwards as the plate is forced onto the handler, in a snap fitting type process. The provision of one clip 22 on each side of the central wall 101 helps locate and retain the 25 wear plate securely on the cable handler. The protrusions 28 (not shown in the variant shown in Figure 5) located adjacent each corner of the wear plate help prevent the ends of the wear plate wobbling or moving. The wear plates may only be used where high wear occurs in cable handlers and as few as half a dozen or so links in any one cable handler may be protected with wear 30 plates. However, it is possible to use them on a much greater percentage of the links in a chain particularly where it is desirable to reduce wear and tear on the cable links generally, noting that, in general, it is cheaper and easier for a mine operator to replace a wear plate than a chain link. Worn wear plates may be removed by inserting a suitably configured tool 35 between the wear plate and the cable handler and levering the plate off. .
WO 2010/132936 PCT/AU2010/000595 6 The wear plate needs to be made such that it fits the cable handler with minimal tolerances. This avoids the need for glue or pins or the like for comfortable retention of the wear plate to the cable handler. It will be appreciated by persons skilled in the art that numerous variations 5 and/or modifications may be made to the invention as shown in the specific embodiments without departing from the scope of the invention as broadly described. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive.
Claims (15)
1. A wear plate for a cable handler which is adapted to quickly clip onto the cable handler and attach to the same by flexing without the need for separate fastening means such as glue, adhesive, bolts or pins. 5
2. A wear plate as claimed in claim 1 wherein, the wear plate defines a generally planar body portion from two opposed sides of which a pair of spaced apart clips project, which in use locate either side of a centre wall of a link of a cable handler. 10
3. A wear plate as claimed in claim 2 wherein the clips define an overhang for retaining the wear plate on the cable handler and wherein the head of each clip is rounded.
4. A wear plate as claimed in any one of claims 2 to 3 wherein the plate further 15 defines side walls extending the two opposed side walls.
5. A wear plate as claimed in any one of claims I to 4 wherein the wear plate is made of a moulded plastics material. 20
6. A wear plate as claimed in any one of claims 1 to 5 wherein a groove extends along a central longitudinal axis of the wear plate about which the plate may flex.
7. A wear plate as claimed in claim 6 wherein the thickness of the plate is from 8 to 12mm and the groove has a maximum depth of 4 to 8mm deep, most preferably 25 about 6mm deep.
8. A wear plate for a cable handler comprising a generally planar body portion, defining two opposed side walls extending along two opposed edges of the planar body portion, and a pair of spaced apart clips located on each side wall, each clip defining a 30 lip which projects towards the opposed clip, and wherein the head of each clip is rounded to assist in deflecting the clips away from the centre of the plate during attachment of the wear plate to a chain link.
9. A wear plate as claimed in claim 9 wherein a groove extends along a central 35 longitudinal axis of the wear plate about which the plate may flex. WO 2010/132936 PCT/AU2010/000595 8
10. A wear plate as claimed in claim 10 wherein the thickness of the plate is from 8 to 12mm and the groove has a maximum depth of 4 to 8mm deep, most preferably about 6mm deep. 5
11. A combination of a wear plate and a chain link of a cable handler attached to the chain link, the chain link comprising a central wall having a width W at its base, and two pairs of side arms extending away from opposed sides of the central wall and defining opposed channels for receiving service lines, the wear plate comprising a generally planar body portion, defining two opposed side edges of the planar body 10 portion, and a pair of spaced apart clips located on each side edge, separated by a distance approximately equal to W, each clip defining a lip which projects towards the opposed clip, and wherein the head of each clip is rounded to assist in deflecting the clips away from the centre of the plate during attachment of the wear plate to a chain link and wherein the wear plate is an interference fit on the chain link and attaches to 15 the same without glue, pins, bolts or the like.
12. A combination as claimed in claim 11 wherein the wear plate is made of a moulded plastics material. 20
13. A combination as claimed in claim 11 or 12 wherein two opposed side walls extending along the two opposed edges of the planar body portion and two further protrusions extend up from the side walls adjacent each end of each side wall.
14. A combination as claimed in any one of claims 11 to 13 wherein a groove 25 extends along a central longitudinal axis of the wear plate about which the plate may flex.
15. A wear plate as claimed in claim 14 wherein the thickness of the plate is from 8 to 12mm and the groove has a maximum depth of 4 to 8mm deep, most preferably 30 about 6mm deep.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2010251765A AU2010251765A1 (en) | 2009-05-20 | 2010-05-20 | Wear plate for cable handler |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2009902302A AU2009902302A0 (en) | 2009-05-20 | Wear plate for cable handler | |
AU2009902302 | 2009-05-20 | ||
AU2010251765A AU2010251765A1 (en) | 2009-05-20 | 2010-05-20 | Wear plate for cable handler |
PCT/AU2010/000595 WO2010132936A1 (en) | 2009-05-20 | 2010-05-20 | Wear plate for cable handler |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2010251765A1 true AU2010251765A1 (en) | 2011-11-24 |
Family
ID=43125662
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2010101489A Expired AU2010101489A4 (en) | 2009-05-20 | 2010-05-20 | Wear plate for cable handler |
AU2010251765A Pending AU2010251765A1 (en) | 2009-05-20 | 2010-05-20 | Wear plate for cable handler |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2010101489A Expired AU2010101489A4 (en) | 2009-05-20 | 2010-05-20 | Wear plate for cable handler |
Country Status (2)
Country | Link |
---|---|
AU (2) | AU2010101489A4 (en) |
WO (1) | WO2010132936A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8622481B2 (en) | 2011-01-25 | 2014-01-07 | Joy Mm Delaware, Inc. | Fiber optic cable protection in a mining system |
US10076831B2 (en) | 2015-09-24 | 2018-09-18 | Caterpillar Inc. | Buffer system for hydraulic hammer |
AU201812789S (en) * | 2018-05-11 | 2018-06-13 | Acteuro Ltd | Chain connector |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4833876A (en) * | 1987-04-09 | 1989-05-30 | Tsubakimoto Chain Co. | Carrier for cables and the like |
US5343989A (en) * | 1992-12-16 | 1994-09-06 | International Business Machines Corporation | Reduced wear cable carrier and pads |
US5642612A (en) * | 1995-12-19 | 1997-07-01 | Hughes; Ceiriog | Replaceable tip cable handler |
JP4476187B2 (en) * | 2005-07-01 | 2010-06-09 | 株式会社椿本チエイン | Cable protection guide device |
-
2010
- 2010-05-20 AU AU2010101489A patent/AU2010101489A4/en not_active Expired
- 2010-05-20 AU AU2010251765A patent/AU2010251765A1/en active Pending
- 2010-05-20 WO PCT/AU2010/000595 patent/WO2010132936A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2010132936A1 (en) | 2010-11-25 |
AU2010101489A4 (en) | 2012-03-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7451589B2 (en) | Line protecting apparatus | |
RU2401739C2 (en) | Wear resistant and noise suppressing strap and system of said straps | |
US9404240B2 (en) | Bucket lip protection assemblies and lip adapters for same | |
RU2510445C2 (en) | Connection device of worn-out element to adapter of excavator and similar machines, and its components | |
US7165293B2 (en) | Conveyor belt fasteners | |
US7114272B2 (en) | Winged digging tooth | |
US12006639B2 (en) | Railway tie plate retention devices and methods to facilitate railway tie replacement | |
US20150214704A1 (en) | Modular device for protecting cables and conduits | |
AU2003211176A1 (en) | Base edge protection system | |
AU2010251765A1 (en) | Wear plate for cable handler | |
US20080216365A1 (en) | Excavating tooth assembly and method for assembling and using the same | |
US3484844A (en) | Resilient retaining means for ripper chain teeth | |
WO1995023310A1 (en) | Line protecting apparatus | |
AU2007314128B2 (en) | Conveyor skirt hanger | |
AU2009101186A4 (en) | Excavator tool | |
AU2010200386B1 (en) | A conveyor belt cleaner blade | |
AU2005294115B2 (en) | Line protecting apparatus | |
CN210794256U (en) | Reclosable lock and reclosable locking system | |
US6799675B2 (en) | Toggle retainer for toggle connections | |
US20160040400A1 (en) | Retention system for a wear member | |
US6174013B1 (en) | Skip car liner | |
RU2692292C1 (en) | Connection of scraper - clamping device - chain link for chain conveyor | |
CN110735363A (en) | rail fastener protector | |
CN114729526A (en) | Wear part, bucket and method | |
ZA200601967B (en) | Winged digging tooth |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
DA3 | Amendments made section 104 |
Free format text: THE NATURE OF THE AMENDMENT IS: APPLICATION IS TO PROCEED UNDER THE NUMBER 2010101489 |