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Fig.3.1-10 12m Antenna Pedestal 3D Modeling View
Its azimuth driving mechanism is below columnar beams and the elevation driving
mechanism is postposition type. The whole antenna pedestal is seated on five reinforced
concrete bases.
3.1.2.1 Azimuth Part
The azimuth part consists of the azimuth-elevation supporting combination, tripod,
azimuth lower bearing pedestal combination, azimuth upper bearing pedestal combination,
etc.
The azimuth-elevation supporting combination is a T-type combination constituted by the
kingpost and the tripod. The kingpost with
Ф
900mm and length of 3.45m is decumbent on
the previous one. The tripod is constituted with three inclined struts that their upper
ends are converged at one point. The lower ends of the three inclined struts are fixed at
the base with bolts, and the upper ends are connected to the azimuth upper bearing
pedestal combination and fixed at the intersection point of their center connecting lines to
form the upper axle head for azimuth rotation. The lower bearing pedestal combination is
