| 摘要 |
PURPOSE: A rotary blow blasting apparatus is provided to evenly process the inner circumference of a conduit by positioning a brush unit in a zigzag shape in the longitudinal direction of a centre shaft. CONSTITUTION: A rotary blow blasting apparatus comprises a barrier plate(P), a centre shaft(20), a brush unit(S), first-sixth connection rods(R1,R2,R4,R5,R6), and combining members(51,55). A mounting hole(11) of the barrier plate is inserted into the centre shaft. The barrier plates inserted into the centre shaft are positioned alternately to each other. The brush unit is positioned between the barrier plates. The first-sixth connection rods are inserted into a corner connecting hole(15) of the barrier plate and the mounting hole of the brush unit. |
