US20130076102A1 - Tool system and tool for mining machine - Google Patents
Tool system and tool for mining machine Download PDFInfo
- Publication number
- US20130076102A1 US20130076102A1 US13/635,660 US201113635660A US2013076102A1 US 20130076102 A1 US20130076102 A1 US 20130076102A1 US 201113635660 A US201113635660 A US 201113635660A US 2013076102 A1 US2013076102 A1 US 2013076102A1
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- United States
- Prior art keywords
- tool
- tool holder
- holder
- weakness
- line
- 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.)
- Abandoned
Links
- 238000005065 mining Methods 0.000 title claims abstract description 44
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 14
- 239000011707 mineral Substances 0.000 claims description 14
- 230000000295 complement effect Effects 0.000 claims 2
- 239000007921 spray Substances 0.000 abstract description 47
- 239000012530 fluid Substances 0.000 abstract description 10
- 239000000463 material Substances 0.000 description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 235000010755 mineral Nutrition 0.000 description 12
- 239000003245 coal Substances 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 229910019142 PO4 Inorganic materials 0.000 description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 5
- 241001625808 Trona Species 0.000 description 5
- 239000010452 phosphate Substances 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 5
- 229940072033 potash Drugs 0.000 description 5
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 5
- 235000015320 potassium carbonate Nutrition 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 229930040373 Paraformaldehyde Natural products 0.000 description 2
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 polyoxymethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/19—Means for fixing picks or holders
-
- 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
- E02F9/2808—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
- E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
Definitions
- the present disclosure relates to a tool system for mining machines.
- the tool system has been developed primarily for use in longwall coal mining machines and iron ore mining machines. However, it will be appreciated that the tool system may also be used in other mineral winning machines, or indeed in excavation equipment, such as road headers, surface miners, continuous miners or tunnel boring machines.
- Tool systems in known longwall coal mining machines are mounted on a shearer drum comprising a barrel around which extends a helical vane.
- the tool system is mounted on a radially outer edge of the helical vane and faceplate.
- Tool systems in known iron ore mining machines are mounted directly on the cutterhead, commonly in a generally helical pattern along the length of the drum.
- the tool system in known mining machines may include a spray unit for directing water toward a cutting end of the cutting tool.
- the spray unit is either threadedly engaged to a heel of the cutting tool or to the tool holder, or may be retained by a retaining device.
- a problem with known tool system is that the spray unit can blow out of engagement with the cutting tool or tool holder due to high spray water pressure or loss of the spray retaining device. Further, in embodiments where the spray unit is incorporated into the tool holder, the area around the spray unit is worn by the action of the base of the tool during operation of the mining machine.
- the present disclosure provides a tool system for a mining machine, the tool system comprising:
- a tool having a cutting end for winning mineral from an ore body and a mounting end, the mounting end being adapted for engagement with the tool holder for securing the tool to the tool holder;
- a set of removable plates having different lateral dimensions, each of the plates being engageable between the tool holder and the tool, such that a said plate of larger lateral dimension may be installed as the mounting end of the tool wears to take up an increased space between the mounting end and the tool holder caused by the tool wear.
- the plates may each comprise a first lateral projection engageable with a corresponding first lateral indent on one of the tool holder and the tool.
- the plates may each be fastenable to one of the tool holder and tool.
- the first lateral projection may be resiliently snap-lockingly engageable with the first lateral indent.
- the removable plates may be engageable with a lateral edge of the mounting end of the tool.
- the tool holder may include a socket for engagement by the mounting end of the tool.
- the mounting end of the tool may comprise a shank.
- a second lateral projection may be provided on one of the tool holder and the tool, the second lateral projection being engageable with the other of the tool holder and the tool.
- the second lateral projection may be integrally formed in one piece construction with a body of the tool holder or may be in the form of a projection mounted to the tool holder.
- the second lateral projection may be provided on an opposite lateral side of the mounting portion of the tool to the first lateral projection.
- a first laterally extending opening may be provided in the mounting end of the tool, the first opening being aligned with a second lateral opening in the tool holder when the tool is engaged in the tool holder, the second opening being open to an external surface of the tool holder, such that a pin may be engaged in both the first and second openings to secure the tool in the tool holder.
- a pin may be resiliently slidably engaged in an opening in the tool holder and biased into engagement with an opening in the tool to secure the tool in the tool holder.
- a recess may be defined by a space formed between the tool and the tool holder when the tool and the tool holder are engaged and a wear part may be adapted for engagement with the recess so as to be positioned between the tool holder and the tool.
- the wear part may be formed of a material that is less wear resistant than the tool holder, such that the wear part wears sacrificially to reduce wear of the tool holder.
- the wear part may be formed of a material that is more wear resistant than the tool, such that the tool wears sacrificially to reduce wear of the wear part.
- the wear part may be formed from a plastics material or from steel. The recess, and therefore the wear part, may be located adjacent a heel end of the tool.
- a spray unit may be engageable in an opening in the wear part and may have a outlet to direct fluid from the spray unit toward the cutting end of the tool.
- the spray unit may extend at least partially into a bore in the tool holder.
- a first laterally extending groove may be provided in the tool holder adjacent the bore and may align with a corresponding second laterally extending groove on the spray unit. The first and second grooves may together define a laterally extending opening for receiving a pin to lock the spray unit in the bore.
- a line of weakness may be provided in the tool to define a predetermined failure point.
- the line of weakness may extend laterally across the tool.
- the line of weakness may be in the form of a groove in the tool.
- the line of weakness may be positioned so as to facilitate failure of the tool at a location that does not unduly inhibit removal of the tool from the tool, holder.
- the tool may comprise a laterally extending flange that is engageable by a lever to facilitate removal of the tool from the tool holder.
- the line of weakness may be positioned above the laterally extending flange such that the tool is adapted to fail at a position that leaves the laterally extending flange intact.
- the tool holder may be adapted for connection to a rotatable head on a mining machine or may be integrally formed in a rotatable head on a mining machine.
- the rotatable head may be, for example, a shearer drum on a mining machine for winning the likes of coal, potash, phosphate, salt or trona, or a cutter head on a mining machine.
- the rotatable head may be, for example, a cutter head on a mining machine for winning minerals the likes of iron ore in harder ore bodies.
- the present disclosure provides a tool for a tool system for a mining machine, the tool comprising:
- a cutting end for winning mineral from an ore body and a mounting end the mounting end being adapted for engagement with a tool holder of the tool system for securing the tool to the tool holder;
- a plate removably fastened to the mounting end, the plate comprising a first lateral projection for engaging a corresponding first lateral indent in the tool holder to facilitate securing of the tool to the tool holder.
- the first lateral projection may be resiliently snap-lockingly engageable with the first lateral indent.
- the plate may be engageable with a lateral edge of the mounting end of the tool. Plates of various lateral dimensions may be provided for fastening to the mounting end of the tool, such that a said plate of larger lateral dimension may be installed as the mounting end of the tool wears to take up an increased space between the mounting end and the tool holder caused by the tool wear.
- the mounting end of the tool may comprise a shank for engaging a socket in the tool holder.
- a second lateral projection may be provided on the tool, the second lateral projection being engageable with the tool holder.
- the second lateral projection may be provided on an opposite lateral side of the mounting portion of the tool to the first lateral projection.
- a first laterally extending opening may be provided in the mounting end of the tool, the first opening being alignable with a second lateral opening in the tool holder when the tool is engaged in the tool holder, the second opening being open to an external surface of the tool holder, such that a pin may be engaged in both the first and second openings to secure the tool in the tool holder.
- a pin may be resiliently slidably engaged in an opening in the tool holder and biased into engagement with an opening in the tool to secure the tool in the tool holder.
- a recess may be defined by a space formed between the tool and the tool holder when the tool and the tool holder are engaged and a wear part may be adapted for engagement with the recess so as to be positioned between the tool and the tool holder.
- the wear part may be formed of a material that is less wear resistant than the tool holder, such that the wear part wears sacrificially to reduce wear of the tool holder.
- the wear part may be formed of a material that is more wear resistant than the tool, such that the tool wears sacrificially to reduce wear of the wear part.
- the wear part may be formed from a plastics material or from steel. The recess, and therefore the wear part, may be located adjacent a heel end of the tool.
- a spray unit may be engageable with an opening in the wear part and may have a outlet to direct fluid from the spray unit toward the cutting end of the tool.
- the spray unit may extend at least partially into a bore in the tool holder.
- a first laterally extending groove may be provided in the tool holder adjacent the bore and may align with a corresponding second laterally extending groove on the spray unit. The first and second grooves may together define a laterally extending opening for receiving a pin to lock the spray unit in the bore.
- a line of weakness may be provided in the tool to define a predetermined failure point.
- the line of weakness may extend laterally across the tool.
- the line of weakness may be in the form of a groove in the tool.
- the line of weakness may be positioned so as to facilitate failure of the tool at a location that does not unduly inhibit removal of the tool from the tool holder.
- the tool may comprise a laterally extending flange that is engageable by a lever to facilitate removal of the tool from the tool holder.
- the line of weakness may be positioned above the laterally extending flange such that the tool is adapted to fail at a position that leaves the laterally extending flange intact.
- the tool holder may be adapted for connection to a rotatable head on a mining machine or may be integrally formed in a rotatable head on a mining machine.
- the rotatable head may be, for example, a shearer drum on a mining machine for winning the likes of coal, potash, phosphate, salt or trona, or a cutter head on a mining machine.
- the rotatable head may be, for example, a cutter head on a mining machine for winning minerals the likes of iron ore in harder ore bodies.
- the present disclosure provides a tool system for a mining machine, the tool system comprising:
- a tool having a cutting end for winning mineral from an ore body and a mounting end, the mounting end being adapted for engagement with the tool holder for securing the tool to the tool holder;
- At least three locking mechanisms for securing the tool to the tool holder, said at least three locking mechanisms comprising at least one of:
- the tool holder may include a socket for engagement by the mounting end of the tool.
- the mounting end of the tool may comprise a shank.
- the first lateral projection may be resiliently snap-lockingly engageable with the first lateral indent.
- the first lateral projection may be provided on a removable plate engageable with a lateral edge of the mounting end of the tool. Plates of various lateral dimensions may be provided. A plate of larger lateral dimension may be installed as the mounting end of the tool wears to take up the increased space between the mounting portion and the tool holder caused by the tool wear.
- a second lateral projection may be provided on one of the tool holder and the tool, the second lateral projection being engageable with the other of the tool holder and the tool.
- the second lateral projection may be integrally formed in one piece construction with a body of the tool holder or may be in the form of a projection mounted to the tool holder.
- the second lateral projection may be provided on an opposite lateral side of the mounting portion of the tool to the first lateral projection.
- a recess may be defined by a space formed between the tool and the tool holder when the tool and the tool holder are engaged and a wear part may be adapted for engagement with the recess so as to be positioned between the tool and the tool holder.
- the wear part may be formed of a material that is less wear resistant than the tool holder, such that the wear part wears sacrificially to reduce wear of the tool holder.
- the wear part may be formed of a material that is more wear resistant than the tool, such that the tool wears sacrificially to reduce wear of the wear part.
- the wear part may be formed from a plastics material or from steel. The recess, and therefore the wear part, may be located adjacent a heel end of the tool.
- a spray unit may be engageable in an opening in the wear part and may have a outlet to direct fluid from the spray unit toward the cutting end of the tool.
- the spray unit may extend at least partially into a bore in the tool holder.
- a first laterally extending groove may be provided in the tool holder adjacent the bore and may align with a corresponding second laterally extending groove on the spray unit. The first and second grooves may together define a laterally extending opening for receiving a pin to lock the spray unit in the bore.
- a line of weakness may be provided in the tool to define a predetermined failure point.
- the line of weakness may extend laterally across the tool.
- the line of weakness may be in the form of a groove in the tool.
- the line of weakness may be positioned so as to facilitate failure of the tool at a location that does not unduly inhibit removal of the tool from the tool holder.
- the tool may comprise a laterally extending flange that is engageable by a lever to facilitate removal of the tool from the tool holder.
- the line of weakness may be positioned above the laterally extending flange such that the tool is adapted to fail at a position that leaves the laterally extending flange intact.
- the tool holder may be adapted for connection to a rotatable head on a mining machine or may be integrally formed in a rotatable head on a mining machine.
- the rotatable head may be, for example, a shearer drum on a mining machine for winning the likes of coal, potash, phosphate, salt or trona, or a cutter head on a mining machine.
- the rotatable head may be, for example, a cutter head on a mining machine for winning minerals the likes of iron ore in harder ore bodies.
- the present disclosure provides a tool system for a mining machine, the tool system comprising:
- a tool having a cutting end for winning mineral from an ore body and a mounting end, the mounting end being adapted for engagement with the tool holder for securing the tool to the tool holder;
- a wear part adapted for engagement with the recess so as to be positioned between the tool and the tool holder.
- the wear part may be formed of a material that is less wear resistant than the tool holder, such that the wear part wears sacrificially to reduce wear of the tool holder.
- the wear part may be formed of a material that is more wear resistant than the tool, such that the tool wears sacrificially to reduce wear of the wear part.
- the wear part may be formed from a plastics material or from steel. The recess, and therefore the wear part, may be located adjacent a heel end of the tool.
- a spray unit may be engageable in an opening in the wear part and may have an outlet to direct fluid from the spray unit toward the cutting end of the tool.
- the spray unit may extend at least partially into a bore in the tool holder.
- a first laterally extending groove may be provided in the tool holder adjacent the bore and may align with a corresponding second laterally extending groove on the spray unit. The first and second grooves may together define a laterally extending opening for receiving a pin to lock the spray unit in the bore.
- the tool holder may include a socket for engagement by the mounting end of the tool.
- the mounting end of the tool may comprise a shank.
- One of the tool holder and the tool may have a first lateral projection and the other of the tool holder and the tool may have a corresponding first lateral indent that is engageable with the first projection to facilitate securing of the tool to the tool holder.
- the first lateral projection may be resiliently snap-lockingly engageable with the first lateral indent.
- the first lateral projection may be provided on a removable plate engageable with a lateral edge of the mounting end of the tool. Plates of various lateral dimensions may be provided. A plate of larger lateral dimension may be installed as the mounting end of the tool wears to take up the increased space between the mounting portion and the tool holder caused by the tool wear.
- a second lateral projection may be provided on one of the tool holder and the tool, the second lateral projection being engageable with the other of the tool holder and the tool.
- the second lateral projection may be integrally formed in one piece construction with a body of the tool holder or may be in the form of a projection mounted to the tool holder.
- the second lateral projection may be provided on an opposite lateral side of the mounting portion of the tool to the first lateral projection.
- a first laterally extending opening may be provided in the mounting end of the tool, the first opening being aligned with a second lateral opening in the tool holder when the tool is engaged in the tool holder, the second opening being open to an external surface of the tool holder, such that a pin may be engaged in both the first and second openings to secure the tool in the tool holder.
- a pin may be resiliently slidably engaged in an opening in the tool holder and biased into engagement with an opening in the tool to secure the tool in the tool holder.
- a line of weakness may be provided in the tool to define a predetermined failure point.
- the line of weakness may extend laterally across the tool.
- the line of weakness may be in the form of a groove in the tool.
- the line of weakness may be positioned so as to facilitate failure of the tool at a location that does not unduly inhibit removal of the tool from the tool holder.
- the tool may comprise a laterally extending flange that is engageable by a lever to facilitate removal of the tool from the tool holder.
- the line of weakness may be positioned above the laterally extending flange such that the tool is adapted to fail at a position that leaves the laterally extending flange intact.
- the tool holder may be adapted for connection to a rotatable head on a mining machine or may be integrally formed in a rotatable head on a mining machine.
- the rotatable head may be, for example, a shearer drum on a mining machine for winning the likes of coal, potash, phosphate, salt or trona, or a cutter head on a mining machine.
- the rotatable head may be, for example, a cutter head on a mining machine for winning minerals the likes of iron ore in harder ore bodies.
- FIG. 1 is a perspective view of an embodiment of a tool system in accordance with the present disclosure
- FIG. 2 is a side view of the tool system of FIG. 1 ;
- FIG. 3 is a front view of the tool system of FIG. 1 ;
- FIG. 4 is a top plan view of the tool system of FIG. 1 ;
- FIG. 5 is a cross-sectional view taken along line 5 - 5 of the tool system of FIG. 4 ;
- FIG. 5 a is an enlarged view of the circled portion of FIG. 5 ;
- FIG. 6 is a perspective view of a front side of the tool of the tool system of FIG. 1 ;
- FIG. 7 is a side view of the tool of FIG. 6 ;
- FIG. 8 is a front view of the tool of FIG. 7 ;
- FIG. 9 is a top plan view of the tool of FIG. 7 ;
- FIG. 10 is a rear view of the tool of FIG. 7 ;
- FIG. 11 is a perspective view of a rear end of the tool holder of the tool system of FIG. 1 ;
- FIG. 12 is a perspective view of a front view of the tool holder of FIG. 11 ;
- FIG. 13 is a front view of the tool holder of FIG. 11 ;
- FIG. 14 is a side view of the tool holder of FIG. 11 ;
- FIG. 15 is a top plan view of the tool holder of FIG. 11 ;
- FIG. 16 is an exploded top plan view of the two parts of the tool holder of FIG. 11 ;
- FIG. 17 is a perspective view of a wear part of the tool system of FIG. 1 ;
- FIG. 18 is a front view of the wear part of FIG. 17 ;
- FIG. 19 is a top plan view of the wear part of FIG. 17 ;
- FIG. 20 is a side view of the wear part of FIG. 17 ;
- FIG. 21 is a perspective view of the spray unit of the tool system of FIG. 1 ;
- FIG. 22 is a side view of the spray unit of FIG. 21 ;
- FIG. 23 is a longitudinal cross sectional view of the spray unit of FIG. 21 ;
- FIG. 24 is a perspective view of a pin for securing the tool in the tool holder
- FIG. 25 is a perspective view of a pin for securing the wear part to the tool holder.
- FIGS. 26 and 27 are perspective views of the removable metal plate of the tool system of FIG. 1 .
- the tool system 10 comprises a tool holder 12 and a tool 14 .
- the tool 14 has a cutting end 16 for winning mineral from an ore body, a tapered mounting end comprising a shank 18 adapted for engagement in a correspondingly tapered socket 20 of the tool holder 12 for securing the tool 14 to the tool holder 12 , a front end 14 a and a heel end 14 b.
- the cutting end 16 terminates in a tungsten carbide tip, which is retained by laid on in a slot or slug in a hole in the tool 12 .
- the tool 14 has a streamlined shape, as shown in FIG. 4 .
- a recess 22 is defined by a space formed between the tool 14 and the tool holder 12 when 15 the tool and the tool holder are engaged, with the recess 22 being located adjacent a heel end 14 b of the tool 14 .
- a wear part 24 is adapted for captive engagement with the recess 22 so as to be positioned adjacent the heel end 14 b of the tool 14 , between the tool 14 and the tool holder 12 .
- the wear part 24 is shown in more detail in FIGS. 17-20 , where it can be seen that retention projections 24 a extend from lateral edges of the wear part 24 . As can be seen in FIGS.
- corresponding recesses 12 c are provided in the tool holder 12 , with the projections 24 a being engageable with the recesses 12 c to facilitate attachment of the wear part 24 to the tool holder 12 .
- a spray unit 25 is provided that has a lower end engageable in a bore 26 in the tool holder 12 and an upper end that extends through an opening 24 b in the wear part 24 .
- the spray unit 25 is shown in more detail in FIGS. 21-23 and has an outlet 25 a to direct fluid from the spray unit 24 toward the cutting end 16 of the tool 14 .
- a first laterally extending groove is 27 a provided in the tool holder 12 adjacent the bore 26 and, as shown in FIG. 5 , aligns with a corresponding second laterally extending groove 27 b on the spray unit 25 .
- the first and second grooves together define a laterally extending opening 27 for receiving a pin 28 to lock the spray unit 25 in the bore 26 .
- the tool 14 has a first lateral projection 29 formed on a removable plate 30 formed from spring, steel and engageable with a lateral edge 31 of the mounting end 18 of the tool 14 .
- the tool holder 12 has a corresponding first lateral indent 32 that is engageable with the first projection 29 to facilitate securing of the tool 14 to the tool holder 12 .
- the first lateral projection 29 is resiliently snap-lockingly engageable with the first lateral indent 32 .
- the plate 30 is connected to the mounting end 18 of the tool 14 by appropriate fasteners, such as buttons 33 that extend through holes 34 in the plate 30 .
- buttons 33 also gap fill the space between the mounting portion 18 of the tool 14 and the tool holder 12 to facilitate secure retention of the tool 14 in the tool holder 12 .
- the fasteners connecting the plate 30 to the tool 14 may comprise threaded bolts or press studs (not shown), or flanges formed on the plate 30 frictionally engaging corresponding slots in the tool 14 .
- a set of plates 30 of various lateral dimensions is provided for use with the tool 14 .
- a plate 30 of larger lateral dimension may be installed as the mounting end 18 of the tool 14 wears to take up the increased space between the mounting portion 18 and the tool holder 12 caused by the tool wear.
- a second lateral projection in the form of a button 36 , extends from an opposite lateral side of the mounting portion 18 to the first lateral projection 29 .
- the button 36 is engageable with an inner wall of the socket 20 of the tool holder 12 to urge the tool 14 toward the first lateral indent 34 .
- a first laterally extending opening 38 is provided in the mounting end 18 of the tool 14 and is .aligned with a second lateral opening 40 in the tool holder 12 when the tool is engaged in the tool holder.
- the second opening 40 is open to an external surface of the tool holder 12 , such that a pin 42 may be engaged in both the first and second openings 38 , 40 to secure the tool 14 in the tool holder 12 .
- the tool 14 comprises a laterally extending flange 14 d that is engageable by a lever to facilitate removal of the tool 14 from the tool holder 12 .
- a line of weakness in the form of a groove 44 , is provided in the tool to define a predetermined failure line extending laterally across the tool 14 .
- the line of weakness 44 is positioned so as to facilitate failure of the tool 14 at a location that does not unduly inhibit removal of the tool 14 from the tool holder 12 .
- the line of weakness is positioned above the laterally extending flange 14 d, such that the tool 14 is adapted to fail at a position that leaves the laterally extending flange 14 d intact, so that a lever can be engaged with the flange 14 d even if the tool 14 has failed.
- the wear part 24 is formed of a plastics material, such as polyoxymethylene (POM), typically known as Acetyl, Nylon or PTFE, that is less wear resistant than the tool holder, such that the wear part wears sacrificially to reduce wear of the tool holder.
- POM polyoxymethylene
- the plastics material of the wear part is also more wear resistant than the tool, such that the tool wears sacrificially to reduce wear of the wear part.
- the spray unit 25 includes a fluid fitting 25 b, formed from nylon or a corrosion resistant metal, such as aluminium bronze.
- the outlet 25 a is provided at one end of the fitting 25 b and an inlet 25 c is provided at the other end of the fitting 25 b.
- the fitting 25 b is housed in a longitudinal opening or bore 46 in the tool holder 12 .
- O-rings 25 d are provided around the fitting 25 b, at locations above and below the point of connection of the fitting 25 b to an inlet 48 in the tool holder 12 , to provide a seal between the fitting 25 b and the tool holder 12 .
- This arrangement of O-rings 25 d balances fluid pressure above and below the connection point between the fitting 25 b and the inlet 48 and stabilises the fitting 25 b in the longitudinal opening 46 .
- the fluid fitting 25 b directs fluid supplied to the inlet 48 to the outlet 25 a for ejection toward the cutting end 16 of the tool 14 .
- the inlet 48 extends diagonally upwardly from a base of the tool holder 12 to intersect with the longitudinal opening 46 .
- the tool holder 12 is formed in two pieces 12 a, 12 b for ease of manufacture.
- the two pieces 12 a, 12 b are secured together by fasteners, in the form of dowels 12 c and by welding.
- the tool holder 12 is adapted for connection to a rotatable shearer drum of the mining machine.
- the provision of the wear part 24 between the tool 14 and tool holder 12 advantageously reduces wear of the tool holder 12 and tool 14 due to the wear part 24 wearing sacrificially. Moreover, when the wear part 24 becomes worn, it can be replaced without requiring the entire tool holder 12 or tool 14 to be replaced, thereby reducing expense and down time. Furthermore, providing opening 24 b in the wear part 24 for receiving the spray unit 25 creates a space between the spray unit 25 and the wear part 24 to facilitate replacement of the spray unit 25 without requiring removal of the wear part 24 . Also, by locating the spray unit 25 in the tool holder 12 , spray liquid is directed close to the tool tip 16 . Prior art systems which do not position the spray on the tool holder lose this advantage.
- a further advantage of the illustrated tool system 10 is the provision of the line of weakness 44 in the tool 14 , which promotes failure of the tool 14 at a convenient location. Without the line of weakness 44 , there is a risk that the tool 14 will fail below the flange 14 d, which would make removal of the failed tool 14 from the tool holder 12 difficult.
- the streamlined shape of the tool 14 provides reduced flank wear, reduced power consumption and reduced dust creation.
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Abstract
A tool system for a mining machine. The tool comprises a tool holder (12) and a cutting tool pick (14) with a cutting tip (16). The mounting end of the tool comprises a tapered shank (18) in a corresponding tapered socket (20) of the tool holder (12). There may be a wear plate (24) situated between the tool holder (12) and the tool (14). There may be further removable wear plates (30) positioned between the tool holder and the tool in the shank region, these wear plates may have lateral projections (29) engaging corresponding recesses (32) in the shank region of the body (12). All these wear plates may be sacrificial and are able to be replaced upon wear, thus less damage will occur to the shank region of the tool or the holder body. The tool assembly may further include a pin (42) which can engage both the tool and holder by extending through aligned openings, opening (40) in the tool holder and opening (38) in the tool. The pin may be resiliently held in place. A spray unit (25) extends through the wear part (24) and has an outlet (25 a) to direct fluid toward the cutting tip (16).
Description
- The present application is related to Australian Provisional Patent Application No. 2010901134, the entire disclosure of which is incorporated herein by way of reference.
- The present disclosure relates to a tool system for mining machines. The tool system has been developed primarily for use in longwall coal mining machines and iron ore mining machines. However, it will be appreciated that the tool system may also be used in other mineral winning machines, or indeed in excavation equipment, such as road headers, surface miners, continuous miners or tunnel boring machines.
- Tool systems in known longwall coal mining machines are mounted on a shearer drum comprising a barrel around which extends a helical vane. The tool system is mounted on a radially outer edge of the helical vane and faceplate.
- Tool systems in known iron ore mining machines are mounted directly on the cutterhead, commonly in a generally helical pattern along the length of the drum.
- The tool system in known mining machines may include a spray unit for directing water toward a cutting end of the cutting tool. The spray unit is either threadedly engaged to a heel of the cutting tool or to the tool holder, or may be retained by a retaining device. A problem with known tool system however, is that the spray unit can blow out of engagement with the cutting tool or tool holder due to high spray water pressure or loss of the spray retaining device. Further, in embodiments where the spray unit is incorporated into the tool holder, the area around the spray unit is worn by the action of the base of the tool during operation of the mining machine.
- 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 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.
- In a first aspect, the present disclosure provides a tool system for a mining machine, the tool system comprising:
- a tool holder;
- a tool having a cutting end for winning mineral from an ore body and a mounting end, the mounting end being adapted for engagement with the tool holder for securing the tool to the tool holder;
- a set of removable plates having different lateral dimensions, each of the plates being engageable between the tool holder and the tool, such that a said plate of larger lateral dimension may be installed as the mounting end of the tool wears to take up an increased space between the mounting end and the tool holder caused by the tool wear.
- The plates may each comprise a first lateral projection engageable with a corresponding first lateral indent on one of the tool holder and the tool. The plates may each be fastenable to one of the tool holder and tool. The first lateral projection may be resiliently snap-lockingly engageable with the first lateral indent. The removable plates may be engageable with a lateral edge of the mounting end of the tool.
- The tool holder may include a socket for engagement by the mounting end of the tool. The mounting end of the tool may comprise a shank.
- A second lateral projection may be provided on one of the tool holder and the tool, the second lateral projection being engageable with the other of the tool holder and the tool. The second lateral projection may be integrally formed in one piece construction with a body of the tool holder or may be in the form of a projection mounted to the tool holder. The second lateral projection may be provided on an opposite lateral side of the mounting portion of the tool to the first lateral projection.
- A first laterally extending opening may be provided in the mounting end of the tool, the first opening being aligned with a second lateral opening in the tool holder when the tool is engaged in the tool holder, the second opening being open to an external surface of the tool holder, such that a pin may be engaged in both the first and second openings to secure the tool in the tool holder.
- A pin may be resiliently slidably engaged in an opening in the tool holder and biased into engagement with an opening in the tool to secure the tool in the tool holder.
- A recess may be defined by a space formed between the tool and the tool holder when the tool and the tool holder are engaged and a wear part may be adapted for engagement with the recess so as to be positioned between the tool holder and the tool. The wear part may be formed of a material that is less wear resistant than the tool holder, such that the wear part wears sacrificially to reduce wear of the tool holder. The wear part may be formed of a material that is more wear resistant than the tool, such that the tool wears sacrificially to reduce wear of the wear part. The wear part may be formed from a plastics material or from steel. The recess, and therefore the wear part, may be located adjacent a heel end of the tool. A spray unit may be engageable in an opening in the wear part and may have a outlet to direct fluid from the spray unit toward the cutting end of the tool. The spray unit may extend at least partially into a bore in the tool holder. A first laterally extending groove may be provided in the tool holder adjacent the bore and may align with a corresponding second laterally extending groove on the spray unit. The first and second grooves may together define a laterally extending opening for receiving a pin to lock the spray unit in the bore.
- A line of weakness may be provided in the tool to define a predetermined failure point. The line of weakness may extend laterally across the tool. The line of weakness may be in the form of a groove in the tool. The line of weakness may be positioned so as to facilitate failure of the tool at a location that does not unduly inhibit removal of the tool from the tool, holder. The tool may comprise a laterally extending flange that is engageable by a lever to facilitate removal of the tool from the tool holder. The line of weakness may be positioned above the laterally extending flange such that the tool is adapted to fail at a position that leaves the laterally extending flange intact.
- The tool holder may be adapted for connection to a rotatable head on a mining machine or may be integrally formed in a rotatable head on a mining machine. In some embodiments, the rotatable head may be, for example, a shearer drum on a mining machine for winning the likes of coal, potash, phosphate, salt or trona, or a cutter head on a mining machine. In other embodiments, the rotatable head may be, for example, a cutter head on a mining machine for winning minerals the likes of iron ore in harder ore bodies.
- In a second aspect, the present disclosure provides a tool for a tool system for a mining machine, the tool comprising:
- a cutting end for winning mineral from an ore body and a mounting end, the mounting end being adapted for engagement with a tool holder of the tool system for securing the tool to the tool holder;
- a plate removably fastened to the mounting end, the plate comprising a first lateral projection for engaging a corresponding first lateral indent in the tool holder to facilitate securing of the tool to the tool holder.
- The first lateral projection may be resiliently snap-lockingly engageable with the first lateral indent. The plate may be engageable with a lateral edge of the mounting end of the tool. Plates of various lateral dimensions may be provided for fastening to the mounting end of the tool, such that a said plate of larger lateral dimension may be installed as the mounting end of the tool wears to take up an increased space between the mounting end and the tool holder caused by the tool wear.
- The mounting end of the tool may comprise a shank for engaging a socket in the tool holder.
- A second lateral projection may be provided on the tool, the second lateral projection being engageable with the tool holder. The second lateral projection may be provided on an opposite lateral side of the mounting portion of the tool to the first lateral projection.
- A first laterally extending opening may be provided in the mounting end of the tool, the first opening being alignable with a second lateral opening in the tool holder when the tool is engaged in the tool holder, the second opening being open to an external surface of the tool holder, such that a pin may be engaged in both the first and second openings to secure the tool in the tool holder.
- A pin may be resiliently slidably engaged in an opening in the tool holder and biased into engagement with an opening in the tool to secure the tool in the tool holder.
- A recess may be defined by a space formed between the tool and the tool holder when the tool and the tool holder are engaged and a wear part may be adapted for engagement with the recess so as to be positioned between the tool and the tool holder. The wear part may be formed of a material that is less wear resistant than the tool holder, such that the wear part wears sacrificially to reduce wear of the tool holder. The wear part may be formed of a material that is more wear resistant than the tool, such that the tool wears sacrificially to reduce wear of the wear part. The wear part may be formed from a plastics material or from steel. The recess, and therefore the wear part, may be located adjacent a heel end of the tool. A spray unit may be engageable with an opening in the wear part and may have a outlet to direct fluid from the spray unit toward the cutting end of the tool. The spray unit may extend at least partially into a bore in the tool holder. A first laterally extending groove may be provided in the tool holder adjacent the bore and may align with a corresponding second laterally extending groove on the spray unit. The first and second grooves may together define a laterally extending opening for receiving a pin to lock the spray unit in the bore.
- A line of weakness may be provided in the tool to define a predetermined failure point. The line of weakness may extend laterally across the tool. The line of weakness may be in the form of a groove in the tool. The line of weakness may be positioned so as to facilitate failure of the tool at a location that does not unduly inhibit removal of the tool from the tool holder. The tool may comprise a laterally extending flange that is engageable by a lever to facilitate removal of the tool from the tool holder. The line of weakness may be positioned above the laterally extending flange such that the tool is adapted to fail at a position that leaves the laterally extending flange intact.
- The tool holder may be adapted for connection to a rotatable head on a mining machine or may be integrally formed in a rotatable head on a mining machine. In some embodiments, the rotatable head may be, for example, a shearer drum on a mining machine for winning the likes of coal, potash, phosphate, salt or trona, or a cutter head on a mining machine. In other embodiments, the rotatable head may be, for example, a cutter head on a mining machine for winning minerals the likes of iron ore in harder ore bodies.
- In a third aspect, the present disclosure provides a tool system for a mining machine, the tool system comprising:
- a tool holder;
- a tool having a cutting end for winning mineral from an ore body and a mounting end, the mounting end being adapted for engagement with the tool holder for securing the tool to the tool holder; and
- at least three locking mechanisms for securing the tool to the tool holder, said at least three locking mechanisms comprising at least one of:
-
- a first lateral projection on one of the tool holder and the tool, and a corresponding first lateral indent on the other of the tool holder and the tool, the first lateral projection being engageable with the first lateral indent to facilitate securing of the tool to the tool holder,
- a first laterally extending opening in the mounting end of the tool, the first opening being aligned with a second lateral opening in the tool holder when the tool is engaged in the tool holder, the second opening being open to an external surface of the tool holder, such that a pin may be engaged in both the first and second openings to secure the tool in the tool holder, and
- a pin resiliently slidably engaged in an opening in the tool holder and biased into engagement with an opening in the tool to secure the tool in the tool holder.
- The tool holder may include a socket for engagement by the mounting end of the tool. The mounting end of the tool may comprise a shank.
- The first lateral projection may be resiliently snap-lockingly engageable with the first lateral indent. The first lateral projection may be provided on a removable plate engageable with a lateral edge of the mounting end of the tool. Plates of various lateral dimensions may be provided. A plate of larger lateral dimension may be installed as the mounting end of the tool wears to take up the increased space between the mounting portion and the tool holder caused by the tool wear.
- A second lateral projection may be provided on one of the tool holder and the tool, the second lateral projection being engageable with the other of the tool holder and the tool. The second lateral projection may be integrally formed in one piece construction with a body of the tool holder or may be in the form of a projection mounted to the tool holder. The second lateral projection may be provided on an opposite lateral side of the mounting portion of the tool to the first lateral projection.
- A recess may be defined by a space formed between the tool and the tool holder when the tool and the tool holder are engaged and a wear part may be adapted for engagement with the recess so as to be positioned between the tool and the tool holder. The wear part may be formed of a material that is less wear resistant than the tool holder, such that the wear part wears sacrificially to reduce wear of the tool holder. The wear part may be formed of a material that is more wear resistant than the tool, such that the tool wears sacrificially to reduce wear of the wear part. The wear part may be formed from a plastics material or from steel. The recess, and therefore the wear part, may be located adjacent a heel end of the tool. A spray unit may be engageable in an opening in the wear part and may have a outlet to direct fluid from the spray unit toward the cutting end of the tool. The spray unit may extend at least partially into a bore in the tool holder. A first laterally extending groove may be provided in the tool holder adjacent the bore and may align with a corresponding second laterally extending groove on the spray unit. The first and second grooves may together define a laterally extending opening for receiving a pin to lock the spray unit in the bore.
- A line of weakness may be provided in the tool to define a predetermined failure point. The line of weakness may extend laterally across the tool. The line of weakness may be in the form of a groove in the tool. The line of weakness may be positioned so as to facilitate failure of the tool at a location that does not unduly inhibit removal of the tool from the tool holder. The tool may comprise a laterally extending flange that is engageable by a lever to facilitate removal of the tool from the tool holder. The line of weakness may be positioned above the laterally extending flange such that the tool is adapted to fail at a position that leaves the laterally extending flange intact.
- The tool holder may be adapted for connection to a rotatable head on a mining machine or may be integrally formed in a rotatable head on a mining machine. In some embodiments, the rotatable head may be, for example, a shearer drum on a mining machine for winning the likes of coal, potash, phosphate, salt or trona, or a cutter head on a mining machine. In other embodiments, the rotatable head may be, for example, a cutter head on a mining machine for winning minerals the likes of iron ore in harder ore bodies.
- In a fourth aspect, the present disclosure provides a tool system for a mining machine, the tool system comprising:
- a tool holder;
- a tool having a cutting end for winning mineral from an ore body and a mounting end, the mounting end being adapted for engagement with the tool holder for securing the tool to the tool holder;
- a recess defined by a space formed between the tool and the tool holder when the tool and the tool holder are engaged;
- a wear part adapted for engagement with the recess so as to be positioned between the tool and the tool holder.
- The wear part may be formed of a material that is less wear resistant than the tool holder, such that the wear part wears sacrificially to reduce wear of the tool holder. The wear part may be formed of a material that is more wear resistant than the tool, such that the tool wears sacrificially to reduce wear of the wear part. The wear part may be formed from a plastics material or from steel. The recess, and therefore the wear part, may be located adjacent a heel end of the tool.
- A spray unit may be engageable in an opening in the wear part and may have an outlet to direct fluid from the spray unit toward the cutting end of the tool. The spray unit may extend at least partially into a bore in the tool holder. A first laterally extending groove may be provided in the tool holder adjacent the bore and may align with a corresponding second laterally extending groove on the spray unit. The first and second grooves may together define a laterally extending opening for receiving a pin to lock the spray unit in the bore.
- The tool holder may include a socket for engagement by the mounting end of the tool. The mounting end of the tool may comprise a shank. One of the tool holder and the tool may have a first lateral projection and the other of the tool holder and the tool may have a corresponding first lateral indent that is engageable with the first projection to facilitate securing of the tool to the tool holder. The first lateral projection may be resiliently snap-lockingly engageable with the first lateral indent. The first lateral projection may be provided on a removable plate engageable with a lateral edge of the mounting end of the tool. Plates of various lateral dimensions may be provided. A plate of larger lateral dimension may be installed as the mounting end of the tool wears to take up the increased space between the mounting portion and the tool holder caused by the tool wear.
- A second lateral projection may be provided on one of the tool holder and the tool, the second lateral projection being engageable with the other of the tool holder and the tool. The second lateral projection may be integrally formed in one piece construction with a body of the tool holder or may be in the form of a projection mounted to the tool holder. The second lateral projection may be provided on an opposite lateral side of the mounting portion of the tool to the first lateral projection.
- A first laterally extending opening may be provided in the mounting end of the tool, the first opening being aligned with a second lateral opening in the tool holder when the tool is engaged in the tool holder, the second opening being open to an external surface of the tool holder, such that a pin may be engaged in both the first and second openings to secure the tool in the tool holder.
- A pin may be resiliently slidably engaged in an opening in the tool holder and biased into engagement with an opening in the tool to secure the tool in the tool holder.
- A line of weakness may be provided in the tool to define a predetermined failure point. The line of weakness may extend laterally across the tool. The line of weakness may be in the form of a groove in the tool. The line of weakness may be positioned so as to facilitate failure of the tool at a location that does not unduly inhibit removal of the tool from the tool holder. The tool may comprise a laterally extending flange that is engageable by a lever to facilitate removal of the tool from the tool holder. The line of weakness may be positioned above the laterally extending flange such that the tool is adapted to fail at a position that leaves the laterally extending flange intact.
- The tool holder may be adapted for connection to a rotatable head on a mining machine or may be integrally formed in a rotatable head on a mining machine. In some embodiments, the rotatable head may be, for example, a shearer drum on a mining machine for winning the likes of coal, potash, phosphate, salt or trona, or a cutter head on a mining machine. In other embodiments, the rotatable head may be, for example, a cutter head on a mining machine for winning minerals the likes of iron ore in harder ore bodies.
- Embodiments of a tool system according to the present disclosure will now be described, by way of example only, with reference t the accompanying drawings, in which:
-
FIG. 1 is a perspective view of an embodiment of a tool system in accordance with the present disclosure; -
FIG. 2 is a side view of the tool system ofFIG. 1 ; -
FIG. 3 is a front view of the tool system ofFIG. 1 ; -
FIG. 4 is a top plan view of the tool system ofFIG. 1 ; -
FIG. 5 is a cross-sectional view taken along line 5-5 of the tool system ofFIG. 4 ; -
FIG. 5 a is an enlarged view of the circled portion ofFIG. 5 ; -
FIG. 6 is a perspective view of a front side of the tool of the tool system ofFIG. 1 ; -
FIG. 7 is a side view of the tool ofFIG. 6 ; -
FIG. 8 is a front view of the tool ofFIG. 7 ; -
FIG. 9 is a top plan view of the tool ofFIG. 7 ; -
FIG. 10 is a rear view of the tool ofFIG. 7 ; -
FIG. 11 is a perspective view of a rear end of the tool holder of the tool system ofFIG. 1 ; -
FIG. 12 is a perspective view of a front view of the tool holder ofFIG. 11 ; -
FIG. 13 is a front view of the tool holder ofFIG. 11 ; -
FIG. 14 is a side view of the tool holder ofFIG. 11 ; -
FIG. 15 is a top plan view of the tool holder ofFIG. 11 ; -
FIG. 16 is an exploded top plan view of the two parts of the tool holder ofFIG. 11 ; -
FIG. 17 is a perspective view of a wear part of the tool system ofFIG. 1 ; -
FIG. 18 is a front view of the wear part ofFIG. 17 ; -
FIG. 19 is a top plan view of the wear part ofFIG. 17 ; -
FIG. 20 is a side view of the wear part ofFIG. 17 ; -
FIG. 21 is a perspective view of the spray unit of the tool system ofFIG. 1 ; -
FIG. 22 is a side view of the spray unit ofFIG. 21 ; -
FIG. 23 is a longitudinal cross sectional view of the spray unit ofFIG. 21 ; -
FIG. 24 is a perspective view of a pin for securing the tool in the tool holder; -
FIG. 25 is a perspective view of a pin for securing the wear part to the tool holder; and -
FIGS. 26 and 27 are perspective views of the removable metal plate of the tool system ofFIG. 1 . - Referring to the drawings, and initially to
FIGS. 1-5 , there is shown a tool system for a longwall coal mining machine. Thetool system 10 comprises atool holder 12 and atool 14. Thetool 14 has a cuttingend 16 for winning mineral from an ore body, a tapered mounting end comprising ashank 18 adapted for engagement in a correspondingly taperedsocket 20 of thetool holder 12 for securing thetool 14 to thetool holder 12, afront end 14 a and a heel end 14 b. The cuttingend 16 terminates in a tungsten carbide tip, which is retained by laid on in a slot or slug in a hole in thetool 12. Thetool 14 has a streamlined shape, as shown inFIG. 4 . As shown inFIG. 5 , arecess 22 is defined by a space formed between thetool 14 and thetool holder 12 when 15 the tool and the tool holder are engaged, with therecess 22 being located adjacent a heel end 14 b of thetool 14. As shown inFIGS. 1 , 4 and 5, awear part 24 is adapted for captive engagement with therecess 22 so as to be positioned adjacent the heel end 14 b of thetool 14, between thetool 14 and thetool holder 12. Thewear part 24 is shown in more detail inFIGS. 17-20 , where it can be seen that retention projections 24 a extend from lateral edges of thewear part 24. As can be seen inFIGS. 11 and 12 , correspondingrecesses 12 c are provided in thetool holder 12, with the projections 24 a being engageable with therecesses 12 c to facilitate attachment of thewear part 24 to thetool holder 12. As shown inFIGS. 1 , 4 and 5, aspray unit 25 is provided that has a lower end engageable in a bore 26 in thetool holder 12 and an upper end that extends through an opening 24 b in thewear part 24. Thespray unit 25 is shown in more detail inFIGS. 21-23 and has an outlet 25 a to direct fluid from thespray unit 24 toward the cuttingend 16 of thetool 14. A first laterally extending groove is 27 a provided in thetool holder 12 adjacent the bore 26 and, as shown inFIG. 5 , aligns with a corresponding second laterally extending groove 27 b on thespray unit 25. The first and second grooves together define a laterally extending opening 27 for receiving apin 28 to lock thespray unit 25 in the bore 26. - As shown in
FIGS. 6-10 , thetool 14 has a firstlateral projection 29 formed on aremovable plate 30 formed from spring, steel and engageable with alateral edge 31 of the mountingend 18 of thetool 14. As shown inFIG. 5 , thetool holder 12 has a corresponding first lateral indent 32 that is engageable with thefirst projection 29 to facilitate securing of thetool 14 to thetool holder 12. The firstlateral projection 29 is resiliently snap-lockingly engageable with the first lateral indent 32. Theplate 30 is connected to the mountingend 18 of thetool 14 by appropriate fasteners, such asbuttons 33 that extend throughholes 34 in theplate 30. Thebuttons 33 also gap fill the space between the mountingportion 18 of thetool 14 and thetool holder 12 to facilitate secure retention of thetool 14 in thetool holder 12. In other embodiments, however, the fasteners connecting theplate 30 to thetool 14 may comprise threaded bolts or press studs (not shown), or flanges formed on theplate 30 frictionally engaging corresponding slots in thetool 14. A set ofplates 30 of various lateral dimensions is provided for use with thetool 14. Aplate 30 of larger lateral dimension may be installed as the mountingend 18 of thetool 14 wears to take up the increased space between the mountingportion 18 and thetool holder 12 caused by the tool wear. - A second lateral projection, in the form of a
button 36, extends from an opposite lateral side of the mountingportion 18 to the firstlateral projection 29. Thebutton 36 is engageable with an inner wall of thesocket 20 of thetool holder 12 to urge thetool 14 toward the firstlateral indent 34. - As best seen in
FIGS. 5 , 7 and 14, a first laterally extendingopening 38 is provided in the mountingend 18 of thetool 14 and is .aligned with a second lateral opening 40 in thetool holder 12 when the tool is engaged in the tool holder. Thesecond opening 40 is open to an external surface of thetool holder 12, such that apin 42 may be engaged in both the first andsecond openings tool 14 in thetool holder 12. - As shown in
FIG. 2 , thetool 14 comprises a laterally extendingflange 14 d that is engageable by a lever to facilitate removal of thetool 14 from thetool holder 12. A line of weakness, in the form of agroove 44, is provided in the tool to define a predetermined failure line extending laterally across thetool 14. The line ofweakness 44 is positioned so as to facilitate failure of thetool 14 at a location that does not unduly inhibit removal of thetool 14 from thetool holder 12. Specifically, the line of weakness is positioned above the laterally extendingflange 14 d, such that thetool 14 is adapted to fail at a position that leaves the laterally extendingflange 14 d intact, so that a lever can be engaged with theflange 14 d even if thetool 14 has failed. - The
wear part 24 is formed of a plastics material, such as polyoxymethylene (POM), typically known as Acetyl, Nylon or PTFE, that is less wear resistant than the tool holder, such that the wear part wears sacrificially to reduce wear of the tool holder. The plastics material of the wear part is also more wear resistant than the tool, such that the tool wears sacrificially to reduce wear of the wear part. - As shown in
FIGS. 21-23 , thespray unit 25 includes a fluid fitting 25 b, formed from nylon or a corrosion resistant metal, such as aluminium bronze. The outlet 25 a is provided at one end of the fitting 25 b and an inlet 25 c is provided at the other end of the fitting 25 b. The fitting 25 b is housed in a longitudinal opening or bore 46 in thetool holder 12. O-rings 25 d are provided around the fitting 25 b, at locations above and below the point of connection of the fitting 25 b to aninlet 48 in thetool holder 12, to provide a seal between the fitting 25 b and thetool holder 12. This arrangement of O-rings 25 d balances fluid pressure above and below the connection point between the fitting 25 b and theinlet 48 and stabilises the fitting 25 b in thelongitudinal opening 46. The fluid fitting 25 b directs fluid supplied to theinlet 48 to the outlet 25 a for ejection toward the cuttingend 16 of thetool 14. As shown inFIG. 5 , theinlet 48 extends diagonally upwardly from a base of thetool holder 12 to intersect with thelongitudinal opening 46. - As shown in
FIG. 16 , thetool holder 12 is formed in two pieces 12 a, 12 b for ease of manufacture. The two pieces 12 a, 12 b are secured together by fasteners, in the form ofdowels 12 c and by welding. - In the illustrated embodiment, which is for use in a longwall coal mining machine for winning minerals the likes of coal, potash, phosphate, salt or trona, the
tool holder 12 is adapted for connection to a rotatable shearer drum of the mining machine. - It will be appreciated that the provision of the
wear part 24 between thetool 14 andtool holder 12 advantageously reduces wear of thetool holder 12 andtool 14 due to thewear part 24 wearing sacrificially. Moreover, when thewear part 24 becomes worn, it can be replaced without requiring theentire tool holder 12 ortool 14 to be replaced, thereby reducing expense and down time. Furthermore, providing opening 24 b in thewear part 24 for receiving thespray unit 25 creates a space between thespray unit 25 and thewear part 24 to facilitate replacement of thespray unit 25 without requiring removal of thewear part 24. Also, by locating thespray unit 25 in thetool holder 12, spray liquid is directed close to thetool tip 16. Prior art systems which do not position the spray on the tool holder lose this advantage. A further advantage of the illustratedtool system 10 is the provision of the line ofweakness 44 in thetool 14, which promotes failure of thetool 14 at a convenient location. Without the line ofweakness 44, there is a risk that thetool 14 will fail below theflange 14 d, which would make removal of the failedtool 14 from thetool holder 12 difficult. The streamlined shape of thetool 14 provides reduced flank wear, reduced power consumption and reduced dust creation. - It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the specific embodiments described above without departing from the broad general scope of the present disclosure. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. Examples of possible modifications include, but are not limited to:
-
- the
tool holder 12 may be integrally formed in, or connected to the rotatable cutting head of a mining machine for winning minerals such as iron ore from harder ore bodies; - the
pin 42 extendable through the firstlateral openings tool 14 andtool holder 12 may be replaced or supplemented by another locking mechanism, such as a pin, staple, or buckle, that is resiliently slidably engaged in an opening in thetool holder 12 and biased into engagement with an opening in thetool 14 to secure the tool in the tool holder; - the
wear part 24 andspray unit 25 may be integrally formed, such that the wear part and spray unit are a single unit and are replaced as a single unit; - the
pin 42 andopenings removable plate 30 may be adapted to retain thespray unit 24; - the
removable plate 30 may be omitted; - the
projection 29 on theremovable plate 30 may be omitted; - the
removable plate 30 may be fastened to thetool holder 12 and snap-lockingly engageable with a corresponding lateral indent on thetool 14; - the
socket 20 of thetool holder 12 may be fitted with a gap filling device, such as a sleeve, in which thetool 14 is engaged, which may act as an adaptor to allow thetool holder 12 to be used with a differently configured tool; - the line of weakness may take an alternative form (eg. may be defined by a reduced thickness portion of the tool body, a hollow portion of the tool body, or a notch in the tool body);
- the streamlined shape of the
tool 14 may be omitted; - the
wear part 24 may be formed from steel of other materials; -
plate 30 being formed from other materials, such as stainless steel or plastics (e.g. acetyl); and/or - the
spray unit 25 may be omitted, in which case the opening 24 b in thewear part 24 may be omitted.
- the
Claims (19)
1-64. (canceled)
65. A tool for a tool system for a mining machine, the tool comprising:
a cutting end for winning mineral from an ore body,
a mounting end comprising a shank complementary with and engageable in a socket of a tool holder,
a laterally extending flange between the mounting end and the cutting end, the flange being engageable by a lever to facilitate removal of the tool from the tool holder, and
a line of weakness in the tool defining a predetermined failure point, the line of weakness being positioned on the cutting end side of the flange, such that the tool is adapted to fail at a position that leaves the flange intact.
66. A tool according to claim 65 , wherein the line of weakness extends laterally across the tool.
67. A tool according to claim 65 , wherein the line of weakness is in the form of a groove in the tool.
68. A tool according to claim 65 , wherein the tool has a streamlined shape.
69. A tool according to claim 65 , wherein the tool is non-circular in transverse cross section.
70. A tool according to claim 69 , wherein the tool comprises a front end and a heel end, and opposite sides extending between the front end and the heel end, and wherein the cross section of a portion of the tool on the cutting end side of the line of weakness defines a shape having a width between the opposite sides and a length between the front end and the heel end, and wherein the width is less than the length.
71. A tool according to claim 70 , wherein the width reduces from a point of maximum width near the front end to a point of reduced width near the heel end.
72. A tool according to claim 65 , wherein the tool is connected to a rotatable head on a mining machine or is integrally formed in a rotatable head on a mining machine.
73. A tool system comprising:
a tool holder including a body having a socket therein;
a tool comprising:
a cutting end for winning mineral from an ore body,
a mounting end comprising a shank complementary with and engageable in the socket of a tool holder,
a laterally extending flange between the mounting end and the cutting end, the flange being engageable by a lever to facilitate removal of the tool from the tool holder, and
a line of weakness in the tool defining a predetermined failure point, the line of weakness being positioned on the cutting end side of the flange, such that the tool is adapted to fail at a position that leaves the flange intact.
74. A tool system according to claim 73 , wherein the tool comprises an abutment surface adapted to engage a corresponding abutment surface on the tool holder when the tool shank is fully engaged in the socket, and wherein the laterally extending flange is spaced apart from the abutment surface of the tool toward the cutting end of the tool.
75. A tool according to claim 73 , wherein the line of weakness extends laterally across the tool.
76. A tool according to claim 73 , wherein the line of weakness is in the form of a groove in the tool.
77. A tool according to claim 73 , wherein the tool has a streamlined shape.
78. A tool according to claim 73 , wherein the tool is non-circular in transverse cross section.
79. A tool according to claim 78 , wherein the tool comprises a front end and a heel end, and opposite sides extending between the front end and the heel end, and wherein the cross section of a portion of the tool on the cutting end side of the line of weakness defines a shape having a width between the opposite sides and a length between the front end and the heel end, and wherein the width is less than the length.
80. A tool according to claim 79 , wherein the width reduces from a point of maximum width near the front end to a point of reduced width near the heel end.
81. A tool according to claim 73 , wherein the tool is connected to a rotatable head on a mining machine or is integrally formed in a rotatable head on a mining machine.
82. A tool system according to claim 73 , wherein the tool holder is connected to a rotatable head on a mining machine or is integrally formed in a rotatable head on a mining machine.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2010-901134 | 2010-03-18 | ||
AU2010901134A AU2010901134A0 (en) | 2010-03-18 | Tool system for mining machine | |
PCT/AU2011/000314 WO2011113113A1 (en) | 2010-03-18 | 2011-03-18 | Cutting pick, wear and mounting system for mining machine |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130076102A1 true US20130076102A1 (en) | 2013-03-28 |
Family
ID=44648365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/635,660 Abandoned US20130076102A1 (en) | 2010-03-18 | 2011-03-18 | Tool system and tool for mining machine |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130076102A1 (en) |
EP (1) | EP2547830A1 (en) |
CN (4) | CN105464660B (en) |
AU (2) | AU2011229158A1 (en) |
WO (1) | WO2011113113A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150028655A1 (en) * | 2011-08-08 | 2015-01-29 | Esco Hydra (Uk) Limited | Cutter tool |
CN106321096A (en) * | 2016-08-23 | 2017-01-11 | 山西晋城无烟煤矿业集团有限责任公司 | Coal cutter roller pickholder positioning device |
WO2017074187A1 (en) * | 2015-10-28 | 2017-05-04 | Ihc Holland Ie B.V. | Tooth retaining and locking system |
JP2017526840A (en) * | 2014-09-09 | 2017-09-14 | ベテック ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフトBetek GmbH & Co. KG | Bits, especially round shank bits |
AU2014281496B2 (en) * | 2013-06-18 | 2018-07-19 | Esco Group Llc | Mineral winning pick, pick holder, and combination |
WO2020220066A1 (en) * | 2019-04-30 | 2020-11-05 | Idim Pty Ltd | Tool holder assembly |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201119486D0 (en) * | 2011-11-11 | 2011-12-21 | Minnovation Ltd | Mineral cutter pick etc |
JOP20140215B1 (en) * | 2013-07-10 | 2023-03-28 | Esco Group Llc | Connector to facilitate lifting of wear parts |
AU2016303652B2 (en) * | 2015-07-31 | 2021-04-29 | Joy Global Underground Mining Llc | Cutting bit assembly |
DE102015112988A1 (en) * | 2015-08-06 | 2017-02-09 | Betek Gmbh & Co. Kg | cutter |
US10024034B2 (en) * | 2015-11-12 | 2018-07-17 | Joy Global Surface Mining Inc | Methods and systems for detecting heavy machine wear |
KR20190025021A (en) * | 2016-07-06 | 2019-03-08 | 메탈로제니아 리서치 앤드 테크놀러지스 에스.엘. | A wear protection system for a tool of a soil transfer machine and corresponding pin |
CN108825227A (en) * | 2018-08-08 | 2018-11-16 | 徐州徐工基础工程机械有限公司 | Development machine cutter device and development machine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1908161A (en) * | 1930-05-06 | 1933-05-09 | Gewerkschaft Wallram | Coal-cutting chisel with hard metal cutting edge |
US3342531A (en) * | 1965-02-16 | 1967-09-19 | Cincinnati Mine Machinery Co | Conical cutter bits held by resilient retainer for free rotation |
US3894451A (en) * | 1973-02-23 | 1975-07-15 | Karl Putsch | Water-pump pliers |
US4655508A (en) * | 1983-09-05 | 1987-04-07 | Tomlinson Peter N | Tool component |
US6364420B1 (en) * | 1999-03-22 | 2002-04-02 | The Sollami Company | Bit and bit holder/block having a predetermined area of failure |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3575467A (en) * | 1969-03-11 | 1971-04-20 | Carmet Co | Cutter bit and block |
GB1341856A (en) * | 1971-01-20 | 1973-12-25 | Izhorsky Z Im A A Zhdanova | Tooth of a bucket of a digging machine |
DE2617954B2 (en) * | 1976-04-24 | 1979-01-25 | Werkzeug-Union Gmbh -Dwu-, 5600 Wuppertal | Bracket for Schrämmeifiel |
GB1568992A (en) * | 1977-03-28 | 1980-06-11 | Hoy & Co Ltd Austin | Assembly for holding mineral cutter picks |
GB2045839A (en) * | 1979-03-30 | 1980-11-05 | Hall & Pickles Ltd | Boxes for mounting mineral mining picks |
US4247147A (en) * | 1979-11-21 | 1981-01-27 | Sandvik Aktiebolag | Retainer clip for cutter bits |
GB2142064B (en) * | 1980-11-24 | 1985-08-29 | Padley & Venables Ltd | Holder for mineral-mining pick |
US4484783A (en) * | 1982-07-22 | 1984-11-27 | Fansteel Inc. | Retainer and wear sleeve for rotating mining bits |
DE3315024A1 (en) * | 1983-04-26 | 1984-10-31 | Liebherr-France S.A., Colmar-Cedex | Tooth for grippers, scoops or shovels of hydraulic excavators, loaders or the like |
US4575156A (en) * | 1984-03-13 | 1986-03-11 | Fansteel Inc. | Mining block and bit |
US5067775A (en) * | 1988-04-21 | 1991-11-26 | Kennametal Inc. | Retainer for rotatable bits |
RU2027852C1 (en) * | 1991-11-26 | 1995-01-27 | Александр Иванович Кравцов | Device for fastening cutting tools of mining machines |
PT681630E (en) * | 1993-02-02 | 2001-08-30 | Esco Corp | TOOTH TOOTH |
US5386653A (en) * | 1993-06-01 | 1995-02-07 | Caterpillar Inc. | Tooth to adapter interface |
US5551760A (en) * | 1993-09-02 | 1996-09-03 | The Sollami Company | Tungsten carbide insert for a cutting tool |
US5561925A (en) * | 1995-07-25 | 1996-10-08 | Caterpillar Inc. | Tooth assembly and retaining mechanism |
DE69607006T2 (en) * | 1995-08-02 | 2000-09-28 | Kennametal Inc | FASTENING SYSTEM FOR CUTTING TOOL HOLDERS |
US6199451B1 (en) * | 1996-09-09 | 2001-03-13 | The Sollami Company | Tool having a tungsten carbide insert |
US5833323A (en) * | 1997-02-03 | 1998-11-10 | Kennametal Inc. | Cutting toolholder retention system |
US6244665B1 (en) * | 1999-02-17 | 2001-06-12 | Kennametal Pc Inc. | Cutting toolholder with recessed groove for cutting tool removal |
US6375272B1 (en) * | 2000-03-24 | 2002-04-23 | Kennametal Inc. | Rotatable cutting tool insert |
US20020007485A1 (en) * | 2000-04-03 | 2002-01-17 | Rodriguez Arturo A. | Television service enhancements |
US6786557B2 (en) * | 2000-12-20 | 2004-09-07 | Kennametal Inc. | Protective wear sleeve having tapered lock and retainer |
CN2743541Y (en) * | 2004-09-25 | 2005-11-30 | 胡玉兴 | Fixing device of coal cutter chain pick |
CN2825948Y (en) * | 2004-09-28 | 2006-10-11 | 周崇义 | Radial mounting type tangential cutting pick |
US7353893B1 (en) * | 2006-10-26 | 2008-04-08 | Hall David R | Tool with a large volume of a superhard material |
AU2005203762B2 (en) * | 2005-08-22 | 2010-12-02 | Sandvik Intellectual Property Ab | Rotary cutting pick |
CN2916131Y (en) * | 2006-06-15 | 2007-06-27 | 宋胜伟 | Cutting pick assembly for use in digging mechanism |
US7832809B2 (en) * | 2006-08-11 | 2010-11-16 | Schlumberger Technology Corporation | Degradation assembly shield |
US20090284069A1 (en) * | 2008-05-18 | 2009-11-19 | Richard Wayne Watson | Pocket Protecting Retainable Cutter Bit |
AU2008100828A6 (en) * | 2008-08-29 | 2008-10-09 | Sandvik Intellectual Property Ab | Cutting pick assembly |
-
2011
- 2011-03-18 AU AU2011229158A patent/AU2011229158A1/en not_active Abandoned
- 2011-03-18 CN CN201510800917.4A patent/CN105464660B/en active Active
- 2011-03-18 EP EP11755573A patent/EP2547830A1/en not_active Withdrawn
- 2011-03-18 CN CN201180014622.4A patent/CN102822424B/en active Active
- 2011-03-18 AU AU2012200898A patent/AU2012200898C8/en active Active
- 2011-03-18 US US13/635,660 patent/US20130076102A1/en not_active Abandoned
- 2011-03-18 CN CN201510801635.6A patent/CN105370276B/en active Active
- 2011-03-18 CN CN201510800973.8A patent/CN105464661B/en not_active Expired - Fee Related
- 2011-03-18 WO PCT/AU2011/000314 patent/WO2011113113A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1908161A (en) * | 1930-05-06 | 1933-05-09 | Gewerkschaft Wallram | Coal-cutting chisel with hard metal cutting edge |
US3342531A (en) * | 1965-02-16 | 1967-09-19 | Cincinnati Mine Machinery Co | Conical cutter bits held by resilient retainer for free rotation |
US3894451A (en) * | 1973-02-23 | 1975-07-15 | Karl Putsch | Water-pump pliers |
US4655508A (en) * | 1983-09-05 | 1987-04-07 | Tomlinson Peter N | Tool component |
US6364420B1 (en) * | 1999-03-22 | 2002-04-02 | The Sollami Company | Bit and bit holder/block having a predetermined area of failure |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150028655A1 (en) * | 2011-08-08 | 2015-01-29 | Esco Hydra (Uk) Limited | Cutter tool |
US9206686B2 (en) * | 2011-08-08 | 2015-12-08 | Esco Hydra (Uk) Limited | Cutter tool |
AU2014281496B2 (en) * | 2013-06-18 | 2018-07-19 | Esco Group Llc | Mineral winning pick, pick holder, and combination |
US10724369B2 (en) | 2013-06-18 | 2020-07-28 | Esco Group Llc | Mineral winning pick, pick holder, and combination |
JP2017526840A (en) * | 2014-09-09 | 2017-09-14 | ベテック ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフトBetek GmbH & Co. KG | Bits, especially round shank bits |
WO2017074187A1 (en) * | 2015-10-28 | 2017-05-04 | Ihc Holland Ie B.V. | Tooth retaining and locking system |
NL2015672B1 (en) * | 2015-10-28 | 2017-05-29 | Ihc Holland Ie Bv | Tooth retaining and locking system. |
US10526769B2 (en) | 2015-10-28 | 2020-01-07 | Ihc Holland Ie B.V. | Tooth retaining and locking system |
AU2016346003B2 (en) * | 2015-10-28 | 2022-04-14 | Ihc Holland Ie B.V. | Tooth retaining and locking system |
CN106321096A (en) * | 2016-08-23 | 2017-01-11 | 山西晋城无烟煤矿业集团有限责任公司 | Coal cutter roller pickholder positioning device |
WO2020220066A1 (en) * | 2019-04-30 | 2020-11-05 | Idim Pty Ltd | Tool holder assembly |
AU2020265894B2 (en) * | 2019-04-30 | 2022-01-06 | Idim Pty Ltd | Tool holder assembly |
Also Published As
Publication number | Publication date |
---|---|
CN105464661B (en) | 2018-01-19 |
AU2012200898B2 (en) | 2012-08-30 |
CN105370276A (en) | 2016-03-02 |
CN105464660B (en) | 2018-12-18 |
CN102822424A (en) | 2012-12-12 |
WO2011113113A1 (en) | 2011-09-22 |
CN102822424B (en) | 2015-12-02 |
CN105464660A (en) | 2016-04-06 |
EP2547830A1 (en) | 2013-01-23 |
AU2011229158A1 (en) | 2012-11-08 |
CN105464661A (en) | 2016-04-06 |
AU2012200898C8 (en) | 2015-02-19 |
CN105370276B (en) | 2019-02-22 |
AU2012200898A1 (en) | 2012-03-22 |
AU2012200898C1 (en) | 2014-03-06 |
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Legal Events
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AS | Assignment |
Owner name: SOUTHERN ENGINEERING SERVICES PTY LTD., AUSTRALIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PIZZATO, WALTER;KUIPER, LINCOLN;ROSS, MATTHEW;AND OTHERS;SIGNING DATES FROM 20121107 TO 20121202;REEL/FRAME:029394/0041 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |