Pharmaceutical rotary vibration screen

The pharmaceutical rotary vibration screen comprises a machine body, a top cover arranged at the top of the machine body and a plurality of clamping assemblies enabling the top cover to be fixedly installed at the top of the machine body, each clamping assembly comprises a fixing frame, the inner top wall of each fixing frame is fixedly connected with a telescopic rod, and the lower end of each telescopic rod is fixedly connected with a pressing block. The top of the pressing block is fixedly connected with a first stud, and the upper end of the first stud movably penetrates through the fixing frame. According to the rotary vibration screen, the top cover and the machine body can be stably connected and fixed through the clamping assembly, and when the rotary vibration screen works, the top cover cannot be separated from the machine body; in the fixing process, the fixing frame is clamped between the top cover and the machine body, then the first stud is pushed downwards, the pressing block makes contact with