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1.发明授权A pick and holder assembly and a pick and a holder for such an assembly 失效一个选票和持有人大会，以及这样一个大会的选票和持有人
公开(公告)号：EP0052977B1
公开(公告)日：1985-02-20
申请号：EP81305317.0
申请日：1981-11-10
CPC分类号： E21C35/187 , E21B41/0078
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2.发明公开
公开(公告)号：EP0052977A2
公开(公告)日：1982-06-02
申请号：EP81305317.0
申请日：1981-11-10
CPC分类号： E21C35/187 , E21B41/0078
摘要： A mineral mining pick 1, a holder for such a pick, and the combination of such a pick with a holder 2. The pick has a head 3 with a cutting tip 5 and a shank 4 which is received in a shank socket 6 of the holder 2. Retaining means 7 is provided to releasably secure the pick in the holder. Extending through the pick is a water passage 11 which communicates with outlet ports 12 in the pick head for water flow to suppress dust and cool the tip 5. The passage 11 communicates with a socket 15 which mates with a tubular spigot 13 which is an extension to a fluid supply passage 2a in the holder 2. The spigot 13 is mounted by a resilient sleeve 22 in a tubular housing 19 by which it is removably retained in the holder 2. The sleeve 22 permits displacement of the spigot 13 to accomodate misalignment between the spigot and the socket 15 during coupling thereof as the shank is inserted into its socket 6.
The socket 6 is provided with a plastics moulded lining 23 which is replaceable when worn to alleviate wear on the holder 2.
In a modification the tubular spigot is carried by (and may be integral with) the pick shank for mating with a fluid coupling socket in the shank socket 6.-
公开(公告)号：EP0052978B1
公开(公告)日：1985-02-06
申请号：EP81305318.8
申请日：1981-11-10
IPC分类号： E21C35/18
CPC分类号： E21D9/1006 , E21B10/38 , E21B10/56 , E21C35/187
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公开(公告)号：EP0052978A3
公开(公告)日：1982-08-04
申请号：EP81305318
申请日：1981-11-10
IPC分类号： E21C35/18
CPC分类号： E21D9/1006 , E21B10/38 , E21B10/56 , E21C35/187
摘要： A cutting tool and a method of manufacturing such a tool which may be a pick, bit or for a machine tool, in which a hard cutting insert 4 is mounted in a recess 7. Formed between the insert 4 and recess 7 are passages 11 which communicate with a fluid supply passage 13 and through which fluid for dust suppression, lubrication, cooling or removal of detritus is passed to emerge at ports 11a immediately adjacent to the cutting insert in the cutting region of the tool. The insert 4 is preferably formed as a pressing or moulding to include channels which co-operate with opposed walls of the recess 7 to form the passages 11. Preferably the insert 4 is secured in the recess 7 by press fitting and/or by heat shrinking the head 1 of the tool onto the recess to apply compressive retaining forces thereto. In a modification the insert 4 is provided with a sleeve and such assembly is received in the recess 7. With an insert and sleeve assembly fluid passages can be formed in the sleeve; between the sleeve and the insert, or between the sleeve and the recess 7. The sleeve may provide a wedge between the insert 4 and the recess 7 for retention of the insert in the recess.
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5.发明公开
公开(公告)号：EP0052977A3
公开(公告)日：1982-08-04
申请号：EP81305317
申请日：1981-11-10
CPC分类号： E21C35/187 , E21B41/0078
摘要： A mineral mining pick 1, a holder for such a pick, and the combination of such a pick with a holder 2. The pick has a head 3 with a cutting tip 5 and a shank 4 which is received in a shank socket 6 of the holder 2. Retaining means 7 is provided to releasably secure the pick in the holder. Extending through the pick is a water passage 11 which communicates with outlet ports 12 in the pick head for water flow to suppress dust and cool the tip 5. The passage 11 communicates with a socket 15 which mates with a tubular spigot 13 which is an extension to a fluid supply passage 2a in the holder 2. The spigot 13 is mounted by a resilient sleeve 22 in a tubular housing 19 by which it is removably retained in the holder 2. The sleeve 22 permits displacement of the spigot 13 to accomodate misalignment between the spigot and the socket 15 during coupling thereof as the shank is inserted into its socket 6. The socket 6 is provided with a plastics moulded lining 23 which is replaceable when worn to alleviate wear on the holder 2. In a modification the tubular spigot is carried by (and may be integral with) the pick shank for mating with a fluid coupling socket in the shank socket 6.
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公开(公告)号：EP0052978A2
公开(公告)日：1982-06-02
申请号：EP81305318.8
申请日：1981-11-10
IPC分类号： E21C35/18
CPC分类号： E21D9/1006 , E21B10/38 , E21B10/56 , E21C35/187
摘要： A cutting tool and a method of manufacturing such a tool which may be a pick, bit or for a machine tool, in which a hard cutting insert 4 is mounted in a recess 7. Formed between the insert 4 and recess 7 are passages 11 which communicate with a fluid supply passage 13 and through which fluid for dust suppression, lubrication, cooling or removal of detritus is passed to emerge at ports 11a immediately adjacent to the cutting insert in the cutting region of the tool.
The insert 4 is preferably formed as a pressing or moulding to include channels which co-operate with opposed walls of the recess 7 to form the passages 11.
Preferably the insert 4 is secured in the recess 7 by press fitting and/or by heat shrinking the head 1 of the tool onto the recess to apply compressive retaining forces thereto.
In a modification the insert 4 is provided with a sleeve and such assembly is received in the recess 7. With an insert and sleeve assembly fluid passages can be formed in the sleeve; between the sleeve and the insert, or between the sleeve and the recess 7. The sleeve may provide a wedge between the insert 4 and the recess 7 for retention of the insert in the recess.
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