04-02-2021 дата публикации
Номер: US20210031356A1
Принадлежит:
A support mechanism includes a fixed body, a rotating unit, a moving unit and a driving unit. The rotating unit is rotationally mounted to the fixed body. The moving unit, disposed at the fixed body, includes a ball screw spline shaft, a ball screw nut and a ball spline nut. The ball screw nut and the ball spline nut are both rotatably disposed at the ball screw spline shaft moved together with the rotating unit. The driving unit, disposed at the fixed body, includes a first driving member and a second driving member to rotate the ball screw nut and the ball spline nut, respectively. With different rotation pairs of the ball screw nut and the ball spline nut to the ball screw spline shaft, the ball screw spline shaft is driven to move, and the ball screw spline shaft is further to move the rotating unit. 1. A support mechanism , comprising:a fixed body member;a rotating unit, mounted to the fixed body member, used for rotating with respect to the fixed body member;a moving unit, disposed at the fixed body member, including a ball screw spline shaft, a ball screw nut and a ball spline nut, the ball screw nut being rotatably disposed at the ball screw spline shaft, the ball spline nut being rotatably disposed also at the ball screw spline shaft, the ball screw spline shaft being moved together with the rotating unit; anda driving unit, disposed at the fixed body member, including a first driving member and a second driving member, the first driving member being to rotate the ball screw nut, the second driving member being to rotate the ball spline nut;wherein, with different rotation pairs of the ball screw nut and the ball spline nut to the ball screw spline shaft, the ball screw spline shaft is driven to move, and the ball screw spline shaft is further to move the rotating unit.2. The support mechanism of claim 1 , wherein the fixed body member includes a first bevel gear claim 1 , and the rotating unit includes a second bevel gear; wherein claim 1 , when the ...
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