ROTARY MECHANISM COMPRISING A MODIFIED ROBERTS' LINKAGE

摘要

A rotary mechanism comprising a first component (a wind turbine hub base), and a second component (a wind turbine blade base); configured for coaxial rotation relative to one another around a first axis. A mechanical linkage couples the first and second components together, allowing relative rotation and maintaining a constant spacing therebetween. The linkage is a modified embodiment of the Roberts' linkage comprising: a first rod, a second rod, a swiveling member (having a swiveling axis), and a swiveling shaft (comprising top and bottom parts); configured for constraining a relative movement of the first and second components to the coaxial rotation around the first axis. The bottom part is mounted to the swiveling shaft for swiveling around the swiveling axis. The swiveling axis and the first axis span a specific plane that is stationary with respect to a specific one of the first component and the second component.