| 摘要 |
A surface abrader has a first motor, a plurality of pulleys, with at least some of the pulleys being coupled to the motor, and a plurality of shafts, with the pulleys being coupled to the shafts. At least one belt is coupled between two of the pulleys to drive one shaft via rotation of the other shaft by the first motor. A first arm is coupled to one of the shafts and a second arm is coupled to another of the shafts or the same shaft. The arms moving in a reciprocating motion to produce an abrasion pattern. An abrasion tool is coupled between the first and second arms by at least two movable joints for contacting a surface to be abraded or tested for surface abrasion.
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