Patent ID: 7753302

Claim:
A rotor for an impact crusher, comprising: a vertically extending rotor shaft; at least one stellate plate connected on the rotor shaft and locked against rotation; a plurality of replaceable hammer tools mountably attached to the stellate plate, the hammer tools shaped as paddle blades and including a centrical recess on a mounting side and two holding blocks, wherein one of the two holding blocks is formed on each side of the recess; an adapter piece at least partially disposed within the recess and between the holding blocks of each of the hammer tools; a pair of tool mounting brackets for each of the hammer tools, one of the pair of tool mounting brackets above one side of the stellate plate and an other of the pair of tool mounting brackets below an opposing side of the stellate plate, each of the pair of tool mounting brackets interacting one of the holding blocks in a positive fit; and a retaining bolt extending through a bore in each of the pair of tool mounting brackets and the adapter piece, wherein the pair of tool mounting brackets are jointly pivotably supported through the retaining bolt to the adapter piece that is stationary fitted in the stellate plate.