Cone crusher having positive head hold-down mechanism
US5996916A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1997 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Oct 17, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C2/047
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.