Self-cleaning strainer having rotating strainer frame assembly journaled on central core by sets of wheels

摘要

A novel all-wheel journaling of the rotary portion of a rotary self- cleaning strainer on a stationary central core. Respective sets of circumferentially spaced wheels are provided on respective end closures of the rotary portion that close opposite axial ends of a strainer screen to the central core. A first set of wheels on one end closure rides on a wear sleeve around the suction pipe of the stationary core, and a second set on the other end closure rides on a ring disposed around the supply pipe of the stationary core. Two additional rings sandwich the ring on the supply pipe to axially capture the second set of wheels and thereby axially capture the rotary portion on the central core. The rotary portion has a frame, including the end closures, for supporting the screen. Novel tie rod structures extend between the end closures.