Sleeve wear test device

The invention discloses a casing abrasion test device which comprises a support and a motor, a casing sample fixing mechanism is fixed on a supporting disc, the supporting disc is installed in the support, and the lower portion of the supporting disc is connected with an output shaft of the motor; a sleeve sample is clamped by a clamping block of the sleeve sample fixing mechanism and can be driven by a motor to rotate; and the drill rod sample is connected with a piston rod of an electric cylinder fixed in an eccentric distance adjusting groove at the top of the bracket and can be inserted into the sleeve sample. According to the invention, the drill rod sample can generate circumferential abrasion to the rotating sleeve sample while moving up and down, the drill rod sample and the sleeve sample extrude and rub each other to further abrade, the abrasion between an underground rod and a sleeve is simulated, the test working condition is similar to the actual working condition, the abrasion condition of the ro