Step elevator tread grinding device

The utility model relates to a step elevator tread grinding device, including polishing the chassis, the left and right sides at the chassis of polishing all is provided with the track, be provided with the cylinder in the middle of the chassis of polishing, the one end of cylinder is provided with the slip backup pad, the slip backup pad shifts up at the track and moves, in the slip backup pad still the symmetry be provided with the collateral branch fagging, all be provided with first support column and second supporting shoe on every collateral branch fagging, still be provided with the boxof polishing in orbital top, the clamp plate that through cylinder drive up -and -down motion is provided with in the below of the box of polishing, below at the clamp plate is provided with wool felt layer, be provided with graphite cloth layer in wool felt layer's below, below on graphite cloth layer is provided with the abrasive band layer. The utility model has the advantages of simple structure and reasonable design