Shot blasting protective sleeve for axle housing fixing ring

The invention discloses a shot blasting protective sleeve for an axle housing fixing ring, which comprises a cylindrical sleeve body (1). The protective sleeve is mounted outside a shaft-shaped part in a sleeving manner, a lug boss (2) is arranged at the outer side end of the sleeve body (1), and a hole (3) is formed in the sleeve body. The shot blasting protective sleeve is convenient to assemble and disassemble and can ensure that the protective sleeve does not fall off easily during the use process; the sleeve body is mounted outside of a fixing ring in a sleeving manner, so that parts that do not require treatment are not influenced during the shot blasting process and other surfaces are not blocked; and shot blasting protective sleeve has the advantages of simple structure, convenience in manufacturing, firm in assembly, economy, durability, and fast in assembly and disassembly.