Variable-diameter compensation rope tensioning device

The utility model relates to the technical field of elevators, in particular to a variable-diameter compensation rope tensioning device. The variable-diameter compensation rope tensioning device specifically comprises a rope wheel frame and two rope wheel assemblies. The rope wheel frame comprises a front support plate and a rear support plate, a containing cavity is formed between the front support plate and the rear support plate, the two rope wheel assemblies are located at the left end and the right end of the containing cavity, two adjusting holes are formed in the support plates, and the rope wheel assemblies move left and right in the length direction of the adjusting holes. The rope wheel assembly comprises a compensation wheel, a fixing shaft, a bearing and a limiting plate, the bearing is located between the compensation wheel and the fixing shaft, the compensation wheel is rotationally connected with the fixing shaft through the bearing, and the limiting plate is in limiting connection with the fix