A stone tongs for roll sleeve

The utility model discloses a stone tongs for roll sleeve, its structure includes fixed block, left anchor clamps, right anchor clamps and hydraulic motor, left side anchor clamps and right anchor clamps are fixed the inside of fixed block, the inboard of left side anchor clamps and right anchor clamps has all set up pinion rack and fixed plate, fixed plate and pinion rack are the axial symmetry and distribute, the bottom of fixed plate has set up subsidiary driving wheel, the assistance driving wheel passes through the pivoted mode and is connected with the fixed plate, the top of the pinionrack of right anchor clamps is located to the fixed plate of left side anchor clamps, the pinion rack top of left anchor clamps is located to the fixed plate of right side anchor clamps. Contract leftand right anchor clamps through hydraulic motor, can be with roller shell cliping firmly, can not drop at the in -process roller shell of hoist and mount, set up the guard plate in pressing from bothsides mouthful, can preven