Magneto-rheological clutch, brake and variable speed control drive assembly device

The invention belongs to the technical field of drive assembly devices, in particular to a magneto-rheological clutch, brake and variable speed control drive assembly device, which is formed by assembling a coupling, an upper shell, a lower shell, a clutch coil, a clutch shell, a brake coil, a brake shell, a clutch holder shaft, a clutch disc shaft, a clutch bearing, a brake pad bracket, a reversing bearing, a reversing gear, a reversing shaft and a power gear; when a vehicle starts, the coupling inputs power to the clutch disc shaft; when the vehicle runs, current is input into the clutch coil, a magneto-rheological material is subjected to phase change, and the power is transmitted to the reversing shaft from the clutch disc shaft through the power gear and the reversing gear; and when the vehicle is braked, the current input into the clutch coil and the brake coil is cut off, the magneto-rheological material is subjected to phase change, and the brake pad bracket and the reversing shaft are in a brake locking state. The device solves technical problems to achieve light-weight product, simple structure, material reduction and intelligent control, and powerful support is provided for promoting new materials, new technologies, new processes and technical upgrade of products.