Six-degree-of-freedom motion platform system based on reverse gravity balance

The invention discloses a reverse gravitational equilibrium-based six-degree-of-freedom motion platform system, which comprises a control cabinet and a motion execution mechanism, and is characterized in that the control cabinet controls the motion execution mechanism to act to realize the motion of a reverse gravitational equilibrium six-degree-of-freedom platform; the motion executing mechanism comprises an upper platform plate, a lower platform bottom plate, an electric cylinder mechanism, a hydraulic supporting rod mechanism, an energy accumulator and a hydraulic filling device, and the upper platform plate and the lower platform bottom plate are arranged at the two ends of the electric cylinder mechanism and the two ends of the hydraulic supporting rod mechanism respectively and connected with the electric cylinder mechanism and the hydraulic supporting rod mechanism through hinges; when the reverse gravity balance six-degree-of-freedom motion platform system is used, the hydraulic supporting rods are co