GYRATORY CRUSHER

WIPO Patent Application WO/2020/174579

A1

This gyratory crusher is provided with: a main shaft that is disposed rotatably inside a concavity and that rotates eccentrically with the central axis of the main shaft at an incline to the central axis of the concavity; an upper bearing that rotatably supports an upper end section of the main shaft; a lower bearing that rotatably supports a lower end section of the main shaft; and a hydraulic cylinder that causes the main shaft to move vertically through oil pressure. The lower bearing is provided with an eccentric sleeve that has a main shaft fitting-insertion hole into which the lower end section of the main shaft is inserted to fit rotatably, and an outer cylinder that has an eccentric sleeve fitting-insertion hole into which the eccentric sleeve is inserted to fit rotatably. At least one of an inner peripheral surface of the main shaft fitting-insertion hole, an outer peripheral surface of the eccentric sleeve, and an inner peripheral surface of the eccentric sleeve fitting-insertion hole has a tapered shape in at least a partial region thereof in the axial direction such that the distance from a surface that such tapered shape faces becomes greater as the tapered shape progresses upward.

JP3764947	RAW MATERIAL FEEDER FOR GYRATORY CRUSHER
WO/2014/135307	SEALING RING FOR GYRATORY CRUSHER

KIJIMA TAKASHI
OYAMA ATSUSHI
KOGA AKIMASA
SATO YOSHICHIKA

PCT/JP2019/007305

September 03, 2020

February 26, 2019

Click for automatic bibliography generation  

KK EARTHTECHNICA (JP)

B02C2/04

JP2017113739A	2017-06-29
JPS605437U	1985-01-16
US20140306040A1	2014-10-16

PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)

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