| 摘要 |
PROBLEM TO BE SOLVED: To provide a gyratory crusher capable of easily performing an uneven wear correction work of cone cave in a short time. SOLUTION: The gyratory crusher is constituted so that the upper end part of a main shaft 13 is supported on a spider 3b of the upper frame 3 by means of an upper part bearing 14. The gyratory crusher is provided with a thrust spherical bearing 15 disposed on the upper end surface of the main shaft and an oil pressure cylinder 16 for boosting which is retained vertically on the spider while being located on the upper side of the main shaft by a bracket 17 and lets a piston rod 16b to protrude downward so as to be able to pressurize the thrust spherical surface bearing. COPYRIGHT: (C)2005,JPO&NCIPI
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