| 摘要 |
<p>An apparatus for a clarifier (10) including a central pier (18) terminating in a base plate (20) having a circumferential edge (22) and a ring gear (50) rotatable about the central pier (18) and coupled to a rake structure (60), the apparatus including a plurality of support bearings (80) and a retaining ring structure (90). A lower surface (82) of each support bearing seated on and supported by a portion of the base plate (20) and a portion of an upper surface (81) of each support bearing for support of a portion of the bottom of the ring gear (50), the support bearings (80) placed substantially end-to-end to form a circular bearing extending towards the circumferential edge (22) of the base plate (20). The retaining ring structure (90) in rotative contact with a portion of the outer circumferential surface of the ring gear (50), the ring structure including a plurality of removably coupled semi-circular retaining members (91) forming a circular hoop extending normal to the circumferential edge of the base plate, wherein the retaining ring structure aligns the ring gear to rotation about a fixed axis. The apparatus may also include an adjustment mechanism (132, 134) selectively operable with the ring gear to adjust a vertical position of the ring gear (50) relative to a top surface (24) of the base plate (22).</p> |
