device at a lagringsgaffel to a windmill, which fork you inrettad to rorligt store turbine vindfangande blade to its hub

摘要

A journaling yoke 12 for a wind turbine 11 is adapted to journal the wind catching blades 18 of the turbine to its hub 2 in a movable manner. The journaling yoke has two legs 13, 14 gripping around the hub and being swingable journalled in flapping joints in spherically movable bearings 15c, 15d and 16c, 16d, respectively, onto flapping bearing pivots 4, 5 extending radially or diametrically from the hub in its plane of rotation 3 and solidly fixed to said hub. In its portion opposite its yoke legs, the journaling yoke has a pitch twisting bearing or a blade mount for the turbine blade. In order to obtain a structurally light and stable, as well as cheap, journaling yoke 12 and to enable mounting and dismounting of the journaling yoke onto the two flapping bearing pivots 4, 5 of the hub 2, the journaling yoke is adapted to be dividable into two yoke halves 22c, 22d and 23c, 23d, respectively, along a dividing plane 24 positioned between the yoke legs, the geometric axis of the flapping bearing pivots constituting a normal to said dividing plane, and the yoke halves of the journaling yoke being adapted to be clamped together by mountable and dismountable, load-transmitting bolt connections 31, 37, in relation to the dividing plane. IMAGE