| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary blade for shearing type crushers which is capable of saving the crushing motive energy and suppressing decrease of treatment efficiency. SOLUTION: Rotary blades 1 with a prescribed thickness and spacers 104 having an outer shape for positioning the base parts of the rotary blades 1 in the axial direction are arranged alternately in the axial direction of a plurality of operation shafts 101 which are arranged in a manner that the rotary blades 1 and the spacers 104 are made to intermesh each other while facing each other. Each rotary blade 1 has a blade stand part 3 extruded outer from the outer circumference of each spacer 104 and a plurality of blade parts 6 having blade edge parts 7 projected in the circumferential direction from the blade stand part 3 and sharpened in the circumferential direction. The side of each rotary blade 1 has an outer circumferential blade face 14 formed in the outer form part of the rotary blade 1 in the radius direction of the prescribed thickness and a recessed part 12 with a prescribed depth formed between the outer circumferential blade face 14 in the radius direction and the face having contact with the spacer 104. COPYRIGHT: (C)2010,JPO&INPIT |
