Interlocking Shear Tip Inserts for Uniform Load Distribution
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Solution Overview
Problem
Existing scrap recycling and demolition equipment tips are not designed to uniformly distribute cutting forces, leading to uneven wear and frequent replacement of both the tip and base components.
Innovation Solution
A tip assembly with a base and protrusion design, where first and second inserts are mounted to the base, each with a locking recess and piercing edge, to secure and distribute cutting forces effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If inserts are bolted directly to the blade with a single bolt, then the attachment process is simple, but the load is not uniformly distributed and both tip and base wear unevenly
Solution Approach 1:
The base is segmented into multiple mounting locations with multiple bolts distributed across the base- insert interface. This segmentation allows the cutting load to be distributed across multiple attachment points rather than concentrated at a single bolt, preventing uneven wear and improving reliability while maintaining manufacturing simplicity.
Solution Approach 2:
The base is designed with varying local properties including reinforced mounting areas, strategically positioned bolt holes, and variable thickness regions. These local quality variations optimize stress distribution at critical load transfer points while maintaining overall structural integrity, addressing the uneven wear problem without complicating the overall design.
2Ease of manufacture
If the tip is designed as a single integrated component, then manufacturing is straightforward, but replacement of worn inserts requires replacing the entire tip assembly
Solution Approach 1:
The tip assembly is segmented into the base and multiple removable inserts. The base serves as a reusable mounting structure while inserts can be independently replaced. This segmentation allows worn inserts to be replaced without replacing the entire tip assembly, improving repair efficiency while the base and insert design remain straightforward to manufacture.
Solution Approach 2:
The base is designed as a universal mounting structure that can accommodate multiple different insert types or configurations. The standardized base with multiple mounting locations provides multi-functionality, allowing the same base to work with various insert designs while maintaining manufacturing simplicity through modular architecture.
3Reliability
If multiple bolts are used to secure inserts to the base, then load distribution improves, but the attachment process becomes more complex
Solution Approach 1:
The base incorporates locally optimized features such as reinforced mounting plates, strategically positioned bolt holes with varying distances from edges, and localized thickening at high-stress areas. These local quality variations improve load distribution across multiple bolts without requiring a complex overall structure, maintaining simplicity while enhancing reliability.
Data Source
AI summary
A tip assembly for a jaw of a jaw set for demolition and construction equipment has a base with a top side, an underside, and a protrusion extending along a longitudinal axis and extending from the underside. The tip also has a first insert mounted to the base and a second insert mounted to the base. Each insert has a first wall and an opposing second wall with a front side extending therebetween. Each insert also has a locking recess that conforms to the protrusion to limit movement of the insert in directions perpendicular to the longitudinal axis.