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HAMMER HEAD AND CRUSH MACHINE HAVING HAMMER HEAD
HAMMER HEAD AND CRUSH MACHINE HAVING HAMMER HEAD
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机译：锤头及具有锤头的破碎机
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摘要
PROBLEM TO BE SOLVED: To provide a hammer head which can adjust abrasion characteristics to impact in crush or pulverization.;SOLUTION: A hammer head 24 fixed on the outer periphery of a rotatable rotor to carry out crush or pulverization between a repulsion stationary knife arranged around the rotor and itself, has a body part extending over a prescribed length from the rotor toward the repulsion stationary knife. The body part consists of a casting body part with the top face on the side of the repulsion stationary knife, and keeps a hardening build-up part 36B which constitutes an impact load receiving face on the rotational directional advance side of an end part of the repulsion stationary knife and a soft steel part 38B integral with the hardening build-up part and softer than the hardening build-up part, fixed by welding on the casting body part via the soft steel part. The hardening build-up part forms a first edge 42B of the impact load receiving face and an end face crossing the impact load receiving face on the end part side. The soft steel part has a soft steel part end face adjacent to the end face and flush with the end face so as to abrade by following abrasion of the first edge of the hardening build-up part caused by the crush or the pulverization.;COPYRIGHT: (C)2015,JPO&INPIT
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