Macromolecule composite silicon carbide ceramics shaft sleeve for pump

The invention relates to a macromolecule composite silicon carbide ceramics shaft sleeve for a pump. The macromolecule composite silicon carbide ceramics shaft sleeve comprises a pump shaft, wherein the shaft sleeve body is arranged on the side surface of the pump shaft in the longitudinal direction; a ceramic coating is arranged at the upper part of the shaft sleeve body; a vane wheel is arrangedbeside the shaft sleeve body, and is connected with the pump shaft through the fixed end; and a connecting shaft is arranged between the fixed end and the vane wheel. According to the macromolecule composite silicon carbide ceramics shaft sleeve disclosed by the invention, the shaft sleeve body is arranged on the pump shaft, and the ceramic coating is arranged on the shaft sleeve body, so that the performances of being corrosion-proof and abrasion-proof of the shaft sleeve body can be optimized, the shaft sleeve body can be high-efficiently used for a long time, the using performances of thevane wheel can be more sta