Cone crusher having positive head hold-down mechanism
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United States of America Patent
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-
Dec 7, 1999
Issued Date -
N/A
app pub date -
Oct 17, 1997
filing date -
Oct 15, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A gyratory crusher having a positive head hold-down mechanism. The crusher includes a frame structure; a first mounting arrangement including a pair of taper bearings for rotatably mounting an eccentric member to the frame structure about a vertically oriented first axis; a second mounting arrangement including a spherical bearing for spiderlessly and rotatably mounting a main shaft to the eccentric member about a substantially vertically oriented second axis angularly offset from the first axis; a crusher head mounted on said main shaft; drive means including a bevel gear secured to the eccentric member and a drive pinion arrangement for rotating said eccentric member about the first axis; a hold-down mechanism fixedly mounted to the crusher head for preventing vertical displacement of the crusher head relative to the a plurality of hydrostatic bearings operably supporting the crusher head; and seal means for protecting moving components of the crusher.
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