Multi-Stage Nested Crushing Cavity Structure for Wear Management
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Solution Overview
Problem
Current cone crushers suffer from low crushing efficiency and rapid lining plate wear due to inadequate design of crushing cavities and lining plate structures, which fail to account for material characteristic changes during the crushing process.
Innovation Solution
A multi-stage nested material crushing cavity structure with dynamic cavity shapes and a corresponding lining plate structure, featuring laminating crushing cavities with concave-convex and wedge-shaped designs, is implemented to create a continuous crushing channel that adapts to material characteristics at different stages, enhancing crushing efficacy and prolonging lining plate service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional inverted cone cavity structure is used, then the structure is simple and easy to manufacture, but the crushing efficiency is low
Solution Approach 1:
The crushing cavity is divided into multiple zones along the material discharge direction, with each zone having different geometric parameters (inclination angles, diameters, lengths) optimized for specific crushing stages. This segmentation allows the cavity to adapt to material characteristic changes during crushing, improving overall crushing efficiency while maintaining a manageable structural complexity through modular design.
2Productivity
If a laminating crushing cavity structure with high rotation speed is used, then the crushing efficiency is improved, but the lining plate wears quickly
Solution Approach 1:
Different zones of the lining plate are designed with different geometric parameters and material properties. The lining plate thickness, material composition, and cavity angle vary locally to match the specific crushing conditions in each zone, distributing wear more evenly and extending service life while maintaining high crushing efficiency through optimized local structures.
Solution Approach 2:
The cavity geometry is designed to dynamically adapt to material characteristics during the crushing process. By varying cavity parameters along the discharge direction, the structure responds to changing material properties, maintaining optimal crushing conditions that reduce excessive wear while preserving high productivity.
3Productivity
If a V-shaped crushing cavity with simple lining plate shape is used, then the manufacturing is easy, but the material cannot be crushed selectively
Solution Approach 1:
The V-shaped cavity is segmented into multiple zones with progressively varying geometric parameters. Each zone is optimized for specific crushing requirements, enabling selective crushing of different material characteristics. The segmentation is designed to balance manufacturing complexity with enhanced functional capability.
Solution Approach 2:
The design transitions from a simple two-dimensional V-shape to a three-dimensional zoned structure with varying parameters along the discharge direction. This dimensional evolution enables selective crushing by creating depth-based differentiation while maintaining manufacturability through systematic parameter variation.
4Strength
If high manganese steel alloy material is used for lining plate, then the strength is high, but the shape changes quickly due to wear
Solution Approach 1:
The lining plate is designed with locally optimized properties, including varying thickness and material composition across different zones. This local quality approach compensates for wear-induced shape changes by creating a gradient structure that maintains cavity geometry consistency longer, while preserving the high strength characteristics of high manganese steel alloy.
Data Source
AI summary
The embodiments of the present invention provide a crushing cavity structure for the technical field of crushing cavities of cone crushing equipment. The crushing cavity structure comprises: a first crushing cavity structure for through-crushing an input material having a first material characteristic, the first crushing cavity structure has a first crushing cavity and a first lining plate structure that match the first material characteristic, and the first crushing cavity and the first lining plate structure form a first-stage material crushing channel; a second crushing cavity structure for through-crushing a first-stage material having a second material characteristic, the first-stage material is obtained by the input material passing through the first-stage material crushing channel, the second crushing cavity structure has a second crushing cavity and a second lining plate structure that match the second material characteristic, and the second crushing cavity and the second lining plate structure form a second-stage material crushing channel.