The present invention relates to machines for mining or excavation, and more particularly to cutting devices for a machine for mining or excavation.
Mining machines may include rotating cutting discs to engage rock formations and walls cut or dislodge rock and/or mineral. The cutting disc may be rotated and driven to undercut the rock face at a narrow angle relative to the plane of the face, generating shear forces to cause the rock to fracture. Each cutting disc has a plurality of bits or buttons.
In one aspect, a cutting device for cutting rock includes a disc and a plurality of cutting elements secured to the disc. The disc is supported for rotation about an axis of rotation, and the disc includes a peripheral edge extending around the axis of rotation. The plurality of cutting elements are spaced apart along the peripheral edge of the disc and positioned in a cutting plane. Each of the cutting elements includes a base portion and a cutting portion including a cutting edge, and the cutting portion has a width that is larger than a width of the base portion.
In another aspect, a cutting head for a mining machine includes a boom configured to be supported on a frame, a drive mechanism, and a cutting device supported on the boom and driven by the drive mechanism. The cutting device includes a disc and a plurality of cutting elements secured to the disc. The disc is supported for rotation about an axis of rotation, and the disc includes a peripheral edge extending around the axis of rotation. The plurality of cutting elements are spaced apart along the peripheral edge of the disc and positioned in a cutting plane. Each of the cutting elements includes a base portion and a cutting portion including a cutting edge. The cutting portion has a width that is larger than a width of the base portion.
Other features and aspects will become apparent by consideration of the following detailed description and accompanying drawings.
Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The disclosure is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of “including,” “comprising” or “having” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. The terms “mounted,” “connected” and “coupled” are used broadly and encompass both direct and indirect mounting, connecting and coupling. Further, “connected” and “coupled” are not restricted to physical or mechanical connections or couplings, and can include electrical or hydraulic connections or couplings, whether direct or indirect. Also, electronic communications and notifications may be performed using any known means including direct connections, wireless connections, etc.
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In some embodiments, the cutting head and disc may operate in a manner similar to that of the mining machine disclosed in U.S. Patent Application Publication No. 2014/0077578, filed Sep. 16, 2013, the entire contents of which are incorporated by reference herein. In other embodiments, the cutting head and disc operates in a similar manner to the cutting mechanism disclosed in U.S. Pat. No. 7,934,776, published May 3, 2011, the entire contents of which are incorporated by reference herein. In other embodiments, the cutting disc may be is driven to rotate in another manner.
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The base portion 124 is positioned within an associated bore 106 (
In the illustrated embodiment, the outer surface 142 and the shoulder 154 both have a circular profile, and the widths D1 and D2 represent diameters of the respective portions. In some embodiments, the shoulder 154 has a diameter D1 between approximately 12 mm and approximately 20 mm. In some embodiments, the shoulder 154 has a diameter D1 of approximately 16 mm. In some embodiments, the outer surface 142 has a diameter D2 between approximately 7 mm and approximately 13 mm. In some embodiments, the outer surface 142 has a diameter D2 of approximately 10 mm. In other constructions, one or more of these widths may have different dimensions.
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Although certain aspects have been described in detail with reference to certain embodiments, variations and modifications exist within the scope and spirit of one or more independent aspects as described. Various features and advantages are set forth in the following claims.
This application is a continuation of U.S. patent application Ser. No. 15/606,696, filed May 26, 2017, which claims the benefit of U.S. Provisional Application No. 62/342,438, filed May 27, 2016, U.S. Provisional Application No. 62/342,254, filed May 27, 2016, and U.S. Provisional Patent Application No. 62/446,799, filed Jan. 16, 2017. The entire contents of these documents are incorporated by reference herein.
Number | Name | Date | Kind |
---|---|---|---|
2121202 | Killgore | Jun 1938 | A |
2763258 | Hughes | Sep 1956 | A |
3048160 | Griffin et al. | Aug 1962 | A |
3411826 | Wallers et al. | Nov 1968 | A |
3442342 | McElya et al. | May 1969 | A |
3461983 | Hudson et al. | Aug 1969 | A |
3536150 | Stebley | Oct 1970 | A |
3633637 | Kolesh | Jan 1972 | A |
3647265 | Pentith | Mar 1972 | A |
3952815 | Dysart | Apr 1976 | A |
3957307 | Varda | May 1976 | A |
4004645 | Rees et al. | Jan 1977 | A |
4109737 | Bovenkerk | Aug 1978 | A |
4148368 | Evans | Apr 1979 | A |
4202419 | Youngblood | May 1980 | A |
4231438 | Garner et al. | Nov 1980 | A |
4466498 | Bardwell | Aug 1984 | A |
4499958 | Radtke et al. | Feb 1985 | A |
4527941 | Klemm | Jul 1985 | A |
4751972 | Jones et al. | Jun 1988 | A |
4753305 | Fisher | Jun 1988 | A |
4755004 | Palmquist | Jul 1988 | A |
4838366 | Jones | Jun 1989 | A |
5060735 | Agren | Oct 1991 | A |
5129296 | Wayne | Jul 1992 | A |
5139099 | Hayashi et al. | Aug 1992 | A |
5143163 | Stiffler et al. | Sep 1992 | A |
5291807 | Vanderford et al. | Mar 1994 | A |
5497843 | Burns | Mar 1996 | A |
5518443 | Fisher | May 1996 | A |
5551760 | Sollami | Sep 1996 | A |
5722497 | Gum et al. | Mar 1998 | A |
5884979 | Latham | Mar 1999 | A |
6019434 | Emmerich | Feb 2000 | A |
6145605 | Karlsson | Nov 2000 | A |
6260637 | Haussmann et al. | Jul 2001 | B1 |
6290008 | Portwood et al. | Sep 2001 | B1 |
6343842 | Sauer | Feb 2002 | B1 |
6367569 | Walk | Apr 2002 | B1 |
6561590 | Sugden | May 2003 | B2 |
6692083 | Latham | Feb 2004 | B2 |
6766870 | Overstreet | Jul 2004 | B2 |
7182407 | Peach et al. | Feb 2007 | B1 |
7240746 | Overstreet et al. | Jul 2007 | B2 |
7338135 | Hall et al. | Mar 2008 | B1 |
7389833 | Walker et al. | Jun 2008 | B2 |
7401537 | Krauter | Jul 2008 | B1 |
7770664 | Laird et al. | Aug 2010 | B2 |
3007049 | Fader et al. | Aug 2011 | A1 |
8016056 | Viswanadham et al. | Sep 2011 | B2 |
8522899 | Bouaphanh | Sep 2013 | B2 |
8523288 | Hanaoka et al. | Sep 2013 | B2 |
8777326 | Hall | Jul 2014 | B2 |
9062502 | King | Jun 2015 | B2 |
9803476 | Raschka et al. | Oct 2017 | B2 |
10808531 | de Sousa | Oct 2020 | B2 |
20020093239 | Sugden | Jul 2002 | A1 |
20060061206 | Nava | Mar 2006 | A1 |
20080036279 | Hall et al. | Feb 2008 | A1 |
20090322143 | Krauter | Dec 2009 | A1 |
20100018514 | Wills, II | Jan 2010 | A1 |
20100104382 | Heinloth | Apr 2010 | A1 |
20120198671 | Meidar et al. | Aug 2012 | A1 |
20130014999 | King | Jan 2013 | A1 |
20130181501 | Hall et al. | Jul 2013 | A1 |
20140251696 | Cox | Sep 2014 | A1 |
20150030397 | Heinloth | Jan 2015 | A1 |
20170342829 | de Sousa et al. | Nov 2017 | A1 |
20170342830 | de Sousa et al. | Nov 2017 | A1 |
20170342835 | de Sousa et al. | Nov 2017 | A1 |
Number | Date | Country |
---|---|---|
2015203867 | Jul 2015 | AU |
199500435 | Feb 1996 | CL |
2623865 | Jul 2004 | CN |
201198737 | Feb 2009 | CN |
201771431 | Mar 2011 | CN |
102777173 | Nov 2012 | CN |
204782795 | Nov 2015 | CN |
1481782 | Dec 2004 | EP |
1479374 | Jul 1977 | GB |
S57100288 | Jun 1982 | JP |
H11223090 | Aug 1999 | JP |
2007169947 | Jul 2007 | JP |
2018659 | Aug 1994 | RU |
2436952 | Dec 2011 | RU |
2522607 | Jul 2014 | RU |
2571471 | Dec 2015 | RU |
220292 | Sep 1968 | SU |
443171 | Sep 1974 | SU |
937717 | Jun 1982 | SU |
1416684 | Aug 1988 | SU |
03001031 | Jan 2003 | WO |
Entry |
---|
Russian Federal Service for Intellectual Property Decision of Grant for Application No. 2018144221 dated Jun. 10, 2021 (24 pages including English translation). |
International Search Report and Written Opinion for Application No. PCT/US2017/034738 dated Aug. 25, 2017 (15 pages). |
International Search Report and Written Opinion for Application No. PCT/US2017/034729 dated Aug. 25, 2017 (15 pages). |
International Search Report and Written Opinion for Application No. PCT/US2017/034713 dated Aug. 25, 2017 (13 pages). |
Extended European Search Report for Application No. 17803684.4 dated Mar. 20, 2020 (8 pages). |
Office Action issued by the Federal Institute of Industrial Property for Application No. 2018144221/03 dated May 27, 2020 (14 pages including English translation). |
Office Action issued by the China National Intellectual Property Administration for Application No. 201780041479.5 dated Sep. 24, 2020 (10 pages including English summary). |
Office Action issued by the Federal Institute of Industrial Property for Application No. 2018144221 dated Oct. 23, 2020 (11 pages including English translation). |
Office Action issued by the Canadian Intellectual Property Office for Application No. 3025632 dated Mar. 1, 2022 (3 pages). |
Office Action issue by IP Australia for Application No. 2017269407 dated Apr. 11, 2022 (4 pages). |
Chinese Patent Office Action and Written Opinion for Application No. 201780041479.5 dated Nov. 26, 2021 (10 pages, including English Summary). |
European Patent Office Action for Application No. 17803684.4 dated Jun. 27, 2022 (3 pages). |
Number | Date | Country | |
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20210032989 A1 | Feb 2021 | US |
Number | Date | Country | |
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62446799 | Jan 2017 | US | |
62342254 | May 2016 | US | |
62342438 | May 2016 | US |
Number | Date | Country | |
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Parent | 15606696 | May 2017 | US |
Child | 17072351 | US |