Abstract: Disclosed a system for use in removing spindles from the main rotor of a rotary aircraft. The tool includes a faceplate that is designed to fit over a spindle after the associated rotor blade has been removed. One of more locking pins are then used to secure the faceplate to the spindle. The faceplate includes a series of four apertures within its four corners. Jack bolts are adapted to be secured within the apertures. The base of each jack bolts can be secured within bolt holes for the spindle mount. Backing nuts are threadably received on each of the jack bolts and are adapted to engage the faceplate. Jam nuts are also included for use in rotating each of the jack bolts. Rotation of the jam nuts causes rotation of the jack bolts. This, in turn, causes the face plate to pull the spindle out of the rotor.
Abstract: Described is a trammel set tool designed to measure the center-to-center location of the bearings mounted on a pitch change link. Because pitch change links have two replaceable “lollypop” rod ends, it may be necessary at some point to replace an entire rod end, not just the bearing. The trammel set tool provides the operator the capability to remove an unserviceable rod end, and reinstall a new rod end to the same settings while taking into consideration.
Abstract: Disclosed is an apparatus that precisely measures the bearings in a rotor pitch link. The apparatus permits measurements to within a thousandths of an inch to be taken in multiple perpendicular orientations. Namely, measurements can be taken in the axial direction, in the longitudinal radial direction, and in the transverse radial direction. All of these measurements can be taken without having to reorient the pitch link. By using the apparatus of the present invention, a user can detect unacceptable levels of wear within the pitch link bearings to thereby permit timely replacement and/or repair.
Type:
Grant
Filed:
December 19, 2008
Date of Patent:
July 31, 2012
Assignee:
Walin Tool, LLC
Inventors:
Linda K. Swadling, Bryan Hinman, Dan Oliverius