Bucket elevator counterweight structure

The utility model relates to a bucket elevator counter weight structure which comprises a shell, a tail wheel shaft is arranged in the shell, tail wheels are symmetrically arranged on the tail wheel shaft, counter weight blocks used for keeping constant tension of the tail wheels are arranged on the sides, close to the shell, of the tail wheels, and bearing seats are arranged at the two ends, extending out of the shell, of the tail wheel shaft. A wear-resistant sleeve is embedded between the tail wheel and the bearing seat; an adjusting bin is arranged on the outer side wall, close to the bearing seat, of the shell, and a sliding way for the bearing seat to slide up and down is arranged on the inner side wall of the adjusting bin; the top of the bearing seat is provided with an adjusting rod used for adjusting the tensile force. The wear-resistant sleeve is used for replacing a bearing commonly used in the prior art, the effect of powder lubrication is utilized, lubricating oil does not need to be injected, m