Microgravity simulation device combining ball bearing and reverse counterweight

According to the microgravity simulation device combining the ball bearing and the reverse counter weight, a linear bearing assembly and a hoisting assembly are fixedly installed on a platform frame, and the linear bearing assembly is used for limiting the hoisting assembly to move in the vertical direction; the bottom of the platform frame is provided with air feet which can freely move in a smooth plane; the reverse counterweight assembly is fixedly mounted on the hoisting assembly; the reverse counterweight assembly is used for offsetting the weight of the target load, so that the target load can freely move in the vertical direction; the target load is fixedly connected with the hoisting assembly through the ball bearing assembly; the ball bearing assembly is used for limiting rotation of the target load around the center. According to the invention, the ground microgravity simulation of the space load is simply and effectively realized, and convenient conditions are provided for carrying out a ground sim