| 摘要 |
PROBLEM TO BE SOLVED: To provide a cone crusher provided with a pair of upper and lower liners each of which hardly wears unevenly and has such a shape that the product throughput can be improved while keeping excellent pulverization performance. SOLUTION: A crushing chamber 10 is formed between a concave liner 2 and a mantle liner 3. The liner 2 has three curvedly continuous zone surfaces, namely, a first zone surface 2a whose length C<SB>1</SB>is T to√2T, a second zone surface 2b and a third zone surface 2c which are inclined toward the outside gradually from the inlet 10a side of the chamber 10. The liner 3 has also three curvedly continuous zone surfaces, namely, a first tapered surface 3a, the perpendicular distance L<SB>1</SB>of which to the edge part of the surface 2a on the inlet side is equal to or longer than T, the crossed angleθ<SB>1</SB>of which with the surface 2a is≤20°and the inclined angleα<SB>1</SB>is≥60°, a second tapered surface 3b, the perpendicular distance L<SB>2</SB>of which to the edge part of the surface 2b on the inlet side is equal to or longer than 0.5T and the crossed angle of which with the surface 2b is 5-10°and a third tapered surface 3c having 45-50°inclined angleα<SB>3</SB>. COPYRIGHT: (C)2004,JPO
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