Testing machine for abrasion of rubber specimen

摘要

PURPOSE: A wear testing apparatus of a rubber specimen is provided to estimate wear condition of a tire accurately by measuring actual frictional force applied to the rubber specimen with wear changes according to changes of friction. CONSTITUTION: A wear test device of a rubber specimen is composed of a specimen fixing unit(10) fastening a rubber specimen(1) to turn; a wear unit wearing the rubber specimen out with contacting; a rotating unit(30) of the wear unit turning the wear unit; a blade rotating unit; a pressure unit(40) contacting the rubber specimen to the wear unit by pushing the specimen fixing unit; and a friction measuring unit(50) detecting torque of the test fixing unit. Frictional force against the rubber specimen is measured with detecting torque of the specimen fixing unit. The wear condition of the tire is estimated accurately in traveling a vehicle according to changes of friction. The wear condition according to temperature changes is detected with mounting a chamber closing a specimen placing unit and a blade placing unit, and a heating unit.