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Gyratory crusher topshell

A technology of gyratory crushers and broken shells, which is applied in grain processing and other directions, and can solve problems such as limited service life, cracking, and top shell fatigue

Active Publication Date: 2020-09-18
山特维克SRP股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It should be understood that large stress concentrations can lead to fatigue and cracking of the top case and limit its service life
In addition, conventional top cases typically require a relatively complex pouring feeder arrangement when the bracket and top case are cast as a unitary part
Therefore, the preparation and implementation of existing manufacturing methods are time-consuming

Method used

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  • Gyratory crusher topshell
  • Gyratory crusher topshell
  • Gyratory crusher topshell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] refer to figure 1 and figure 2 , the gyratory crusher top shell 100 includes a bracket generally indicated by reference numeral 101 and an annular wall generally indicated by reference numeral 102 . The bracket 101 includes a pair of diametrically opposed arms 103 projecting radially outward from a bowl-shaped central hub 104 positioned on a longitudinal axis 112 extending through the top case 100 . Each arm 103 is substantially bent in the axial direction such that a radially outer region of each arm 103 extends axially to cooperate with the axially upper end of the annular wall 102 .

[0037] In particular, the annular wall 102 comprises a first axially upper end defined by an axially upwardly facing planar annular face 113 and an axially lower annular end defined by a downwardly facing planar annular face 114 . Wall 102 also includes a radially outwardly facing surface 106 and a corresponding radially inwardly facing surface 107 . The axially extending portion of...

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PUM

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Abstract

A gyratory crusher topshell having an annular shell wall that is strengthened to minimise stress concentrations and increase the topshell operational lifetime. The topshell comprises spider arms thatare structurally reinforced at their radially inner regions and also comprises an annular wall that is reinforced at regions immediately below the spider arms to further increase strength and facilitate casting.

Description

technical field [0001] The present invention relates to a gyratory crusher top casing and in particular but not exclusively to a top casing having an annular wall reinforced against stress concentrations. Background technique [0002] Gyratory crushers are used to crush ore, mineral and rock materials into smaller sizes. Typically, a crusher includes a crushing head mounted on an elongated main shaft. The first crushing shell (called the hood) is mounted on the crushing head and the second crushing shell (called the dimple) is mounted on the frame so that the first and second shells together define a crushing chamber where the The material passes through the crushing chamber. A drive device positioned at the lower region of the main shaft is configured to rotate the axially positioned eccentric assembly to cause the crushing head to perform a rotary oscillating motion and crush material introduced into the crushing chamber. [0003] The main shaft is supported at its uppe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C2/00B02C2/06
CPCB02C2/00B02C2/06B02C2/04
Inventor 扬·约翰松米夏埃尔·斯科格桑尼·埃克芒努斯·弗雷德里克松
Owner 山特维克SRP股份有限公司