| 摘要 |
A grinder assembly ( 10 ) contacts a tire (T) supported by a frame (F) relative to the tire (T). The grinder assembly ( 10 ) includes at least one section, and a vertical repositioning system ( 118 ) supporting the at least one section. The vertical repositioning system ( 118 ) enables the at least one section to be vertically repositioned relative to the tire (T). The at least one section includes a grinding head ( 24 ), a radial positioning system ( 18 ) supporting the grinding head ( 24 ) for radial movement with respect to the tire (T), and a tilt adjuster ( 90 ) provided adjacent the grinding head ( 24 ) to provide for pivotal movement thereof. The vertical repositioning system ( 118 ) includes at least one rail extending along the frame (F), and a rail carriage supporting the at least one section on the at least one rail, the rail carriage being vertically repositionable along the at least one rail.
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