Patent ID: 8662965

Claim:
A counter-rotating polisher, comprising: an enclosure; an electric motor, fixed inside said enclosure, and comprising a driving axle; a polishing arrangement, driven by said electric motor, comprising a first polishing device, comprising a first fixed tray perpendicular to said driving axle and a first polishing material fixedly connected to an outer wall of said first fixed tray, and a second polishing device, comprising a second fixed tray perpendicular to said driving axle and a second polishing material fixedly connected to an outer wall of said second fixed tray, wherein a polishing surface of said first polishing material and a polishing surface of second polishing material are on a same plane and rotate coaxially and oppositely; and a counter-rotating arrangement, comprising a first driving wheel connected to said driving axle and driven by said driving axle, a second driving wheel fixedly connected to said second fixed tray, and a change-direction wheel connected to said first driving wheel and said second driving wheel, wherein said first fixed tray is connected to said driving axle and driven by said driving axle to rotate said first polishing material positively, said change-direction wheel reversely transmits a rotation of said first driving wheel to said second driving wheel to rotate said second polishing material oppositely, wherein said counter-rotating arrangement further comprises a belt, said first driving wheel and said second driving wheel are set in parallel and perpendicular to said change-direction wheel, said change-direction wheel is rotatablely mounted on said enclosure, said belt is sleeved on said first driving wheel, extends to said change-direction wheel, extends back to said second driving wheel and is sleeved on said second driving wheel after rounding said change-direction wheel to change a running direction of said belt through said change-direction wheel, so that said first driving wheel and said second driving wheel rotate coaxially and oppositely.