| 摘要 |
PROBLEM TO BE SOLVED: To provide a dust seal structure of a gyratory crusher which prevents deterioration of airtightness at high temperature and delays development of wear of a dust seal ring.SOLUTION: A dust seal structure includes: a dust seal ring 21 enclosing an outer peripheral surface of a lower trunk assembly 13; a retainer ring 22 provided at a lower end part of a mantle core 16 and supporting an outer diameter side portion of a lower surface of the dust seal ring 21; and an annular falling prevention plane seat 23 which is provided on the outer peripheral surface of the lower trunk assembly 13 so as to face an inner diameter side portion of the lower surface of the dust seal ring 21.SELECTED DRAWING: Figure 3 |
