Wear Runner Style Wear Member Assembly with Locking Pin
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Solution Overview
Problem
Material displacement apparatuses, such as excavating buckets, experience wear due to abrasive contact with displaced materials, leading to premature wear of assemblies and increased maintenance costs.
Innovation Solution
A wear member assembly comprising a base affixed to the bucket, a wear member with securement and push-out ramps, and a locking pin assembly for easy replacement, providing improved protection and longevity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If wear members are made replaceable to reduce bucket wear, then maintenance cost is reduced, but device complexity increases due to additional locking mechanisms
Solution Approach 1:
The wear member assembly is divided into separate replaceable components: the wear member itself and the locking pin assembly. This segmentation allows the wear member to be replaced independently when worn, without replacing the entire assembly or bucket, thereby reducing maintenance costs while maintaining manageable complexity through modular design
Solution Approach 2:
The locking pin assembly is designed as a separate removable component that can be extracted from the wear member. This extraction mechanism allows for easy replacement of the wear member while keeping the locking mechanism reusable, reducing overall maintenance costs without significantly increasing device complexity
2Reliability
If securement ramps are spaced from lateral sides to improve wear member stability, then reliability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The securement ramps are positioned at specific locations on the wear member - spaced from the lateral sides - to provide optimal stability and wear resistance at critical areas. This localized placement of securement features improves reliability by ensuring proper engagement with corresponding base features while allowing standard manufacturing tolerances through strategic positioning
3Ease of operation
If wear member assembly is designed for easy replacement, then ease of operation is improved, but loss of time during replacement increases
Solution Approach 1:
The locking pin assembly is designed with preliminary positioning features that guide proper alignment during installation. The securement ramps are pre-configured to engage with corresponding base features in a predetermined sequence, allowing for easy replacement without requiring complex alignment procedures or specialized tools, thereby minimizing replacement time while maintaining ease of operation
Data Source
AI summary
Some embodiments of the present disclosure include a wear member assembly for ground engaging equipment. The wear member assembly may include a wear member and base. The wear member may include a projection projecting downward from a bottom surface and having an internally disposed first securement ramp spaced from the first lateral side and from the second lateral side. The base may include an aperture extending from the second top surface to the second bottom surface and having a second securement ramp configured to contact the first securement ramp on the wear member. The wear member and base may each have a lock-receiver opening extending therethrough that align when the wear member is seated on the base. A locking pin may be fittable in the lock-receiver openings of the wear member and base. The first securement ramp of the wear member may contact the second securement ramp of the base.