Testing method and apparatus for block-on-ring friction and wear performance of roller

The invention provides a testing method and apparatus for the block-on-ring friction and wear performance of a roller, belonging to field of testing. According to the invention, a movable counterweight loading lever automatically coupled with wear depth is constructed for applying a constant contact crushing stress automatically coupled with the wear depth on a block-on-ring friction pairs so as to guarantee that contact stress between the friction pairs always maintains unchanged; actual friction and wear conditions of the roller are accurately simulated through block-on-ring friction and wear experiments and tests under the constant contact crushing stress, so influence of a variety of working condition parameters on the wear performance of the roller can be researched. The whole apparatus is simple and compact in structure and convenient to operate, can better research the rules of influence of a variety of factors on the friction and wear performance of the roller, is capable of researching influence of a