3-in-1 attachment system for liner plates of mills used to grind minerals
AssigneeAmerican Screw De Chile Limitada
InventorG. Mario Poblete
Life of this patent
Estimating the term…
Abstract
The present invention consists in a 3-in-1 fastening system for shells of mill liners used for grinding minerals allowing the quick installation and removal in one step by using conventional tools. The system comprises a metal washer (1), a fastening element (2, 200) and a rubber washer (5), being concentrically joined to be coupled and thereby securing the shell of a mill, wherein the metal washer (1) has one or more inner openings (3) receiving one or more retaining members (4) to retain the fastening element (2, 200) inside said metal washer (1).
Claims13
A 3-in-1 fastening system for liner shells of mill used for grinding minerals allowing the quick installation and removal in one step by using conventional tools, comprising a metal washer, a fastening element and a rubber washer, being concentrically joined to be coupled and thereby securing the shell of a mill, wherein the fastening element comprises a head and an inner recess in said head, being connected to the metal washer by one or more retaining elements, wherein the metal washer is constituted by a core, side walls and washer bores and has one or more inner openings aligned to the upper portion of the metal washer, the rubber washer is vulcanized between the side walls and below the metal washer core and wherein the one or more retaining elements is arranged between the one or more inner openings of the metal washer and the inner recess in the head of the fastening element.
Assembly method of a 3-in-1 fastening system for shells of mill liners used for grinding minerals allowing the quick installation and removal in one step by using conventional tools, comprising the steps of:
- providing a metal washer constituted by a core, side walls and washer bores;
- vulcanizing a rubber washer between the side walls and below the core of the metal washer with a central opening concentric to the bore of the metal washer;
- introducing one or more retaining elements through one or more inner openings of the metal washer;
- concentrically assembling a fastening element to the top inside portion of the washer so that one or more retaining elements in the metal washer is arranged between the one or more inner openings and an inner recess of the fastening element.
Dependencies are inferred from the claim text.