Patent ID: 6082646
Filing Date: 2000-07-04
Classification: B02C

Abstract:
A segmented liner assembly and liner segment fastening system for the rotatable shell of an ore grinding machine, the shell having a plurality of mounting bores therethrough, comprising:a plurality of liner segments each having a mounting surface engageable with the internal surface of the rotatable shell and a grinding surface;each liner segment comprising at least one mounting bore of predetermined transverse size and extending into the body of the liner segment from the mounting surface, the mounting bore of the liner segment being alignable with a mounting bore of the rotatable shell, each liner segment further comprising a recess of greater transverse size than the mounting bore and extending from the mounting bore to the grinding surface;a threaded member insertable through a mounting bore of the rotatable shell into an aligned mounting bore and recess of the liner segment;a head member on the threaded member disposed to bear against the external surface of the rotatable shell;the threaded member comprising a rod with first and second ends and having a threaded portion at each of said ends;the head member comprising a second nut member threadable onto said second end; anda first nut member sized and configured to fit into said recess and having a threaded bore to threadably receive the threaded member, the first nut member being threadable onto said first end of the threaded member the threaded member being removable from the first nut member and shell by reverse rotation externally of the shell.