Gyratory Crusher Sealing Member for Mantle Centering During Installation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The installation of a gyratory crusher mantle is time-consuming and poses safety risks due to manual handling of heavy wedges for centralization and sealing, which is inefficient and hazardous.

Innovation Solution

A sealing member made of flexible material, such as thermoplastic elastomer, is applied to the mantle's inner wall to centralize and seal the space between the mantle and main shaft, eliminating the need for manual handling of wedges and providing a safe, efficient installation method.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual positioning of wedges is used for centralization and sealing, then the mantle can be installed, but the process is time-consuming and poses safety risks

Engineering Contradiction:
ImprovesafetyVSAvoidinstallation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The sealing function is extracted from the manual wedge positioning process and embodied in a dedicated sealing member that is automatically positioned, separating the sealing function from manual handling operations

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The sealing member is designed to be self-positioning through the adhesive mechanism, eliminating the need for manual positioning operations and enabling automatic centralization and sealing during mantle installation

Inventive Principle:
Principle #25Self-service

2Ease of operation

If manual handling of heavy wedges is performed, then centralization and sealing can be achieved, but the operation is complex and labor-intensive

Engineering Contradiction:
Improveease of centralization and sealingVSAvoidcomplexity of installation process
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The centralization and sealing functions are merged into a single sealing member that performs both operations simultaneously, eliminating the need for separate wedge positioning and sealing steps

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The sealing member serves multiple functions: it acts as both a centralization device and a sealing element, replacing the traditional multi-step process with a single multi-functional component

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The sealing member allows for a safe and time-efficient installation of the mantle, reducing manual labor and ensuring proper centralization without the need for additional sealing steps, thus enhancing safety and efficiency in mantle installation.

Implementation Method 1

The first side of the sealing member is arrangeable on the inner wall of the mantle by means of adhesion

Methodology Applied
Scientific EffectAdhesion: Adhesive

Implementation Method 2

The flexible material may allow at least a portion of the sealing member to adapt, by elastic deformation, to the space available between a mantle and a main shaft

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12569854B2Sealing member and mantle comprising such member, gyratory crusher and method of installing
Publication Date: 2026.03.10 METSO OUTOTEC FINLAND OY
  • US12569854B2 patent drawing
  • US12569854B2 patent drawing
  • US12569854B2 patent drawing

AI summary

A sealing member for a gyratory crusher having a main shaft and a mantle. The sealing member includes a first side and a second, opposing, side. The first side is arrangeable on a circumference of an inner wall of the mantle of the gyratory crusher. At least a portion of the second side is at a distance from the first side, the distance being not less than the difference between a radius of the inner wall of the mantle where the sealing member is arrangeable and a radius of the outer wall of the main shaft where the sealing is to contact the main shaft for sealing a space between the mantle and the main shaft. The sealing member creates a seal between the inner wall of the mantle and the outer wall of the main shaft and centers the mantle on the main shaft during installation of the mantle.