Polymer material skateboard linear abrasion tester

The utility model belongs to the technical field of linear abrasion testing devices, and discloses a linear abrasion testing machine for a high polymer material sliding plate. The main technical characteristics are as follows: the structure is simple; wherein the front end of the horizontal force loading mechanism is provided with a horizontal ejector rod, and the sliding plate fixing disc is movably connected with the horizontal ejector rod. An upper grinding disc is fixed on the frame body above the sliding plate fixing disc; a lower hydraulic cylinder with a lower ejector rod is arranged onthe frame body below the sliding plate fixing disc; a lower grinding disc is arranged above the lower ejector rod, an upper hydraulic cylinder with an upper ejector rod is arranged on the frame bodyabove the sliding plate fixing disc, the lower ejector rod is located below the upper hydraulic cylinder, the upper grinding disc is located below the upper ejector rod, and the downward pressure of the upper hydraulic cylinde