Segmented Ground Engaging Tip With Nested Retention
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Solution Overview
Problem
Ground engaging tools (GETs) used in mining and construction machinery experience rapid wear due to abrasive materials and impacts, leading to frequent replacements and increased costs and downtime.
Innovation Solution
A GET assembly comprising a tip adapter, wear cap, and retention mechanisms that securely attach a ground engaging tip to a bucket or implement, allowing for easy replacement of worn parts and extending the tool's lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ground engaging tools are used to protect buckets and implements, then wear protection is improved, but the GETs themselves experience rapid wear and require frequent replacement
Solution Approach 1:
The ground engaging tool is divided into separate replaceable components including the tip, wear cap, and retention mechanism. This segmentation allows the worn tip to be replaced independently while retaining the remaining portions of the tool, thereby extending the overall lifespan and reducing replacement frequency compared to replacing the entire GET assembly.
Solution Approach 2:
The retention mechanism is nested within the tip and wear cap assembly, allowing for a compact, integrated structure that facilitates easy removal and replacement. The nested design enables the tip to be accessed and replaced without removing the entire GET assembly from the bucket, maintaining protection reliability while improving replaceability.
2Reliability
If GETs are replaced frequently to maintain protection, then tool reliability is maintained, but machine downtime and replacement costs increase
Solution Approach 1:
The retention mechanism is pre-configured with locking and releasing features that enable quick attachment and detachment of the tip. This preliminary design of the retention system allows operators to rapidly replace worn tips during maintenance windows, minimizing machine downtime while ensuring continuous protection reliability.
Solution Approach 2:
The retention mechanism incorporates self-locking and self-releasing features that simplify the replacement process. The design allows for tool-free removal and installation of the tip by leveraging the existing retention mechanism, reducing the time and resources required for maintenance operations.
3Reliability
If entire buckets are replaced instead of GETs, then wear is addressed, but cost and labor intensity increase significantly
Solution Approach 1:
By segmenting the GET into replaceable components (tip, wear cap, retention mechanism), the design enables selective replacement of only the worn tip rather than the entire bucket or complete GET assembly. This significantly reduces replacement cost and labor intensity while maintaining the wear protection function.
Solution Approach 2:
The retention mechanism and wear cap are designed to be recovered and reused after the tip is replaced, rather than discarding the entire GET assembly. This approach minimizes material waste and reduces replacement costs by retaining valuable components while replacing only the consumable tip portion.
Data Source
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AI summary
A ground engaging tip (90) for a machine implement comprises a ground engaging portion (304); a coupling portion (302), the coupling portion and the ground engaging portion extending along a longitudinal tip axis. The coupling portion includes an interior surface defining a coupler pocket having an adapter opening disposed at the coupling portion, a first lug opening and a second lug opening. The interior surface includes an interior base wall, the coupler pocket extending from the interior base wall to the adapter opening along the longitudinal tip axis. The interior surface includes a first interior face surface and a second interior face surface, converging toward each other in a direction toward the interior base wall. The interior surface includes a first interior side surface and a second interior side surface in spaced relationship to each other and between the first interior face surface and the second interior face surface. The first interior side surface and the second interior side surface respectively define the first lug opening and the second lug opening, the first lug opening extending along a first lug opening axis, and the second lug opening extending along a second lug opening axis. The first lug opening axis and the longitudinal tip axis define a first lug opening taper angle, the second lug opening axis and the longitudinal tip axis define a second lug opening taper angle, the first lug opening taper angle and the second lug opening taper angle both being oblique.