Adjustable counterweight loading device capable of being used for motion platform test

The invention belongs to the technical field of parallel mechanisms, and discloses an adjustable counterweight loading device for a motion platform test, which comprises a space truss fixedly mounted at the top end of a motion platform; the layer disc set is detachably connected to the end, away from the motion platform, of the space truss, the layer disc set is formed by sequentially stacking a plurality of layer discs, a plurality of containing cavities are formed in the layer discs, balance weights are detachably connected into the containing cavities, and free adjustment of the weight, the gravity center position and the rotational inertia can be achieved. 本发明属于并联机构技术领域，公开了一种可用于运动平台试验的可调配重加载装置，包括：空间桁架，空间桁架固定安装在运动平台顶端；层盘组，层盘组可拆卸连接在空间桁架远离运动平台的一端，层盘组由若干个层盘依次叠放组成，层盘上设有若干放置腔，放置腔内可拆卸连接有配重，本发明能够实现对重量、重心位置和转动惯量的自由调节。