Transmission and transmission braking system

The invention discloses a transmission and transmission braking system, which relates to the technical field of lifting transmission and braking structures, solves the problems of complex braking and redundant safety measures of the existing lifting transmission device, and comprises a base, a traction shaft and a driving device for driving the traction shaft to rotate are connected to the base, and a traction belt is arranged on the outer side of the traction shaft. One end of the traction belt is connected with the lifting device, and the other end is connected with the elevator counterweight after bypassing the traction shaft; the base is further connected with a plurality of pairs of driving oil cylinders and connecting rods, the lower ends of the connecting rods are hinged to the base, the upper ends of the connecting rods are connected with the brake pincers, and the driving oil cylinders are used for pushing the corresponding brake pincers to enable the traction belt to abut against the traction shaft.