Hybrid retainer sleeve for tool inserted into block

Details Hybrid retainer sleeve for tool inserted into block Hybrid retainer sleeve for tool inserted into block

B - Operations, Transporting

23

Q

B23Q 3/12 (2006.01) B23C 5/22 (2006.01) B23Q 1/70 (2006.01) E21B 17/04 (2006.01)

Patent

CA 2639118

A sleeve utilizing two methods of retention - a friction fit and a rear retention feature - is disclosed. The sleeve includes a circumferentially compressible portion that provides a friction fit when inserted into a bore and includes a projected portion around an end circumference that is used to mate with the rear of a tool block and urges the sleeve (and the tool) rearward. The disclosure also relates to a tool and block assembly, a method of retaining a tool in a holder and a mining machine incorporating the sleeve.

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