Minneapolis Electric Steel Castings Company

Me International, Inc

James A Weil

Duane W Player

A liner assembly for the shell or drum of an ore grinding machine is disclosed with an insert used to facilitate its removal. The liner assembly comprises a plurality of liner segments mounted in side-by-side relation, with adjacent liner segments defining a pocket therebetween of generally triangular configuration. A wedge-shaped insert is disposed within each pocket to reduce the amount of particulate matter entering the pocket and to protect the inner surface of the shell. The wedge-shaped insert is formed from resilient material and includes a recess or groove taking the form of an inverted V extending upwardly from its bottom surface. The recess enables the insert to internally collapse if the pocket is of lesser cross-sectional dimension than that of the insert.

Shell liner assembly and pocket insert for ore grinding mills

The disclosure is directed to an improved roll crusher comprising a central hub mounted on a rotatable shaft, a roll member carried by the hub in concentric relation thereto, and a pair of clamping rings for securing the components together. The roll member and hub have angular surfaces disposed in opposed relation to define a pair of annular, axially facing recesses having V-shaped sides. The clamping rings are constructed to fit into the recesses, each defining inner and outer circumferential surfaces which are angled to correspond to the angled surfaces of the hub and roll member. A plurality of equiangularly spaced bolts connect the clamping rings and hub, drawing the clamping rings toward each other to wedge the roll member radially outward relative to the hub. As a result, the roll member is fixed in a centered, balanced position relative to the hub. A plurality of lugs and lug receiving recesses cooperate to prevent relative rotation between the roll member and hub. The roll member is formed from material which offers substantially greater resistance to abrasion than the material of the hub.

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Plymouth, MN, United States of America

James A Weil