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公开(公告)号：EP0808409A1
公开(公告)日：1997-11-26
申请号：EP96903314.0
申请日：1996-02-13
申请人： SANDVIK AKTIEBOLAG
发明人： BROLUND, Stig-Ake
CPC分类号： E21B10/10 , E21B10/24 , F16N37/003
摘要： The present invention relates to a cutter (10) for a boring head, preferably a boring head for shaft drilling, wherein the cutter (10) is rotatably mounted, via a shaft (12) of the cutter (10), in a saddle secured to the boring head. Bearings (18, 20) are provided between the shaft (12) and an outer roller body (16) of the cutter (10) to make it possible for the roller body (16) to rotate relative to the shaft (12). Seals (33) are disposed between the shaft (12) and the roller body (16) and channels/bores (38, 48, 50, 66) are provided to introduce lubrication internally into the cutter (10). The shaft (12) has a center axis (14). The invention is characterized in that a device (70) for positioning of spacer means (42, 44), a lubrication channel (66) and a diaphragm (60) are provided in the shaft (12), substantially concentrically with the center axis (14), said device, channel and reservoir being provided to accommodate lubrication. The invention further relates to a method for filling a lubrication system.
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公开(公告)号：EP0741834A1
公开(公告)日：1996-11-13
申请号：EP95909171.0
申请日：1995-02-01
申请人： KROLL-DISAB AB , SANDVIK AKTIEBOLAG
CPC分类号： E21D9/13 , E21B10/28 , E21B10/60 , E21B17/1057 , E21B21/16
摘要： In a method for use in dry, rotary, crushing full-area drilling, use is made of suction air alone for removing cuttings produced during drillings. To carry out the method, two suction nozzles (13) are arranged on the underside of a cutterhead (1). These nozzles together have a substantially diametrical extent and the length of a radius on the cutterhead and are provided with suction intakes (14A) in the vicinity of the periphery of the cutterhead. The suction intakes (14A) are connectible a common suction channel (11) in the drill string (6) of the cutterhead. The suction channel (11) has substantially constant diameter.
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公开(公告)号：EP0808409B1
公开(公告)日：2002-09-11
申请号：EP96903314.1
申请日：1996-02-13
申请人： SANDVIK AKTIEBOLAG
发明人： BROLUND, Stig-Ake
IPC分类号： E21B10/24
CPC分类号： E21B10/10 , E21B10/24 , F16N37/003
摘要： The present invention relates to a cutter (10) for a boring head, preferably a boring head for shaft drilling, wherein the cutter (10) is rotatably mounted, via a shaft (12) of the cutter (10), in a saddle secured to the boring head. Bearings (18, 20) are provided between the shaft (12) and an outer roller body (16) of the cutter (10) to make it possible for the roller body (16) to rotate relative to the shaft (12). Seals (33) are disposed between the shaft (12) and the roller body (16) and channels/bores (38, 48, 50, 66) are provided to introduce lubrication internally into the cutter (10). The shaft (12) has a center axis (14). The invention is characterized in that a device (70) for positioning of spacer means (42, 44), a lubrication channel (66) and a diaphragm (60) are provided in the shaft (12), substantially concentrically with the center axis (14), said device, channel and reservoir being provided to accommodate lubrication. The invention further relates to a method for filling a lubrication system.
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公开(公告)号：EP0741834B1
公开(公告)日：2000-09-13
申请号：EP95909171.1
申请日：1995-02-01
CPC分类号： E21D9/13 , E21B10/28 , E21B10/60 , E21B17/1057 , E21B21/16
摘要： In a method for use in dry, rotary, crushing full-area drilling, use is made of suction air alone for removing cuttings produced during drillings. To carry out the method, two suction nozzles (13) are arranged on the underside of a cutterhead (1). These nozzles together have a substantially diametrical extent and the length of a radius on the cutterhead and are provided with suction intakes (14A) in the vicinity of the periphery of the cutterhead. The suction intakes (14A) are connectible a common suction channel (11) in the drill string (6) of the cutterhead. The suction channel (11) has substantially constant diameter.
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