Blade assembling
AssigneeSouthern California Edison Company
InventorsRalph J. Ortolano, Kenneth A. Ball, Gary Bowman
Life of this patent
Estimating the term…
Abstract
A tool for locating a predetermined number of turbine blades in relative operative position with each other includes a base with a space and walls with a space between them. Blades are located sequentially and adjacently. An arc of curvature is representative of the arc of curvature for a rotor for accommodating the blades ordinarily. When the blades are located, the curvature of the top conforms with the curvature of the rotor. The blades can then be adjusted and aligned such that when located in the rotor they will be accurately positioned. With a serrated root, the root is located near the plate and held with steeple screws. With a forked root, there is a post between the fork. A finger root is secured between sidewalls.
Claims12
A pre-assembly verification tool for temporarily locating a predetermined number of blades of a rotor in relative operative adjacent relationship with each other comprising a support, spaced sidewalls affixed to the support, the support and sidewalls forming a space for locating roots of respective blades in adjacent abutting relationship, the spaced sidewalls being separated to accommodate the thickness of the roots so that the roots may be located snugly between the sidewalls, a portion of the sidewalls having an arc of curvature representative of an arc of curvature for a rotor for temporarily accommodating the blades such that when the blades are temporarily located with the roots in the space, the blades adopt a temporary location relative to each other representative of a permanent blade position in the rotor, wherein the arc of curvature forms a regular smooth uninterrupted curved surface, and means for holding the roots temporarily in the space, and wherein the holding means is operative outside a plane of the arc of curvature of the surface of the sidewall.
A tool for locating a predetermined number of blades in relative operative adjacent relationship with each other comprising a base, spaced walls affixed to the base, an element removed from the base having an arc of curvature representative of an arc of curvature for a rotor for securing the blades such that when the blades are located with the roots in location relative to the element, the blades adopt a location relative to each other representative of the blade position in the rotor, and holding means extending from a side of the element adjacent the base to a side of the element removed from the base for holding the roots relative to the element.
Dependencies are inferred from the claim text.