Mineral Breaker Tooth Construction with Composite Core and Wear-Resistant Shell
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing mineral breaker tooth constructions face challenges in withstanding repeated large breaking forces without snapping, particularly when dealing with hard minerals like granite, due to inadequate transmission of forces and wear resistance.
Innovation Solution
A tooth construction design featuring a ductile metal core covered with a wear-resistant, brittle shell, where the breaking tip formation extends over the top face and includes a pick and rearwardly extending top formation, allowing for economical use of high-grade materials and improved structural integrity through increased welding surface area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a tooth shell of wear resistant material is used to protect against severe wear, then wear resistance is improved, but the shell becomes relatively brittle and may snap under large breaking forces
Solution Approach 1:
The tooth construction employs a composite structure consisting of a ductile metal core and a wear-resistant shell made of different materials. The core provides toughness and resistance to snapping, while the shell provides wear protection. This composite material approach resolves the contradiction by combining materials with complementary properties.
2Force
If large breaking forces are transmitted from the drive shaft to break hard minerals, then breaking capability is improved, but the tooth construction becomes more prone to snapping and shell loosening
Solution Approach 1:
The ductile metal core serves as a robust force transmission element that can withstand large breaking forces without snapping. The core's ductility allows it to absorb and distribute the high forces applied during mineral breaking, preventing both snapping of the tooth and loosening of the shell.
3Object-affected harmful factors
If the breaking tip formation extends over the top face of the cover with substantial length and width coverage, then mechanical protection against wear is improved, but the complexity of the construction increases
Solution Approach 1:
The tooth construction is divided into distinct functional segments: a support core, a shell with front and side walls, and a breaking tip formation with pick and top portions. This segmentation allows each component to be optimized for its specific function while maintaining overall structural integrity, managing complexity through modular design.
Solution Approach 2:
The breaking tip formation is concentrated specifically at the top face of the cover where wear is most severe. By placing the wear-resistant tip formation only where needed (local quality) rather than throughout the entire tooth construction, the design provides maximum mechanical protection against wear while minimizing unnecessary complexity.
Data Source
AI summary
A tooth construction for a mineral breaker, the tooth construction including a tooth shaped support body covered by a shell on which is mounted a breaking tip formation to define the outer shape of the tooth construction; the support body having a front face, an opposed rear face, and a pair of opposed side faces extending therebetween; the shell being composed of a cover formation defining a front wall, opposed side walls, and a top wall overlying and seated in face to face contact with respective front, side and top faces of the support body; the breaking tip formation comprising a pick formation presenting a rear surface in face to face contact with and secured upon the front wall of the cover so as to project forwardly therefrom and a top formation extending rearwardly of the pick formation and presenting a lower surface in face to face contact with and secured upon the top wall of the cover.