Mining Dipper Lip Tooling With Modular Wear Component Replacement
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Solution Overview
Problem
Current ground engagement tooling for mining shovels, such as adapters and shrouds, are directly coupled to the dipper lip using legs that provide structural support and wear protection, but this design limits the ability to replace worn components individually and efficiently.
Innovation Solution
A modular ground engagement tooling system with apertures in the dipper lip allows for releasable coupling of adapters and shrouds using a locking system, enabling separate wear components to be replaced independently based on wear levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If ground engagement tooling is directly coupled to the dipper lip using legs, then structural support and wear protection are provided, but the ability to replace worn components individually is limited
Solution Approach 1:
The ground engagement tooling is divided into separate modular components (adapters and shrouds) that can be independently removed and replaced. The adapter couples to the dipper lip through apertures, while the shroud attaches to the adapter, creating a segmented system where worn parts can be replaced individually without replacing the entire assembly.
Solution Approach 2:
The coupling system transitions from a fixed, permanent attachment to a dynamic, releasable connection. The adapter includes release mechanisms that allow the shroud to be easily detached and reattached, enabling maintenance personnel to quickly replace worn components without complex disassembly procedures.
2Productivity
If modular components are used with releasable coupling, then individual replacement of worn parts is enabled, but the locking system complexity increases
Solution Approach 1:
The locking system is segmented into discrete fastening mechanisms located at specific apertures in the dipper lip. Each adapter can be independently locked or unlocked using these distributed fastening points, allowing maintenance workers to secure or release individual components without affecting the entire tooling assembly.
Solution Approach 2:
The adapter serves as an intermediary component between the dipper lip and the shroud. It includes features such as apertures for fasteners and coupling surfaces that mediate the connection, allowing the shroud to be easily attached and detached while maintaining a secure connection during operation.
3Duration of action of stationary object
If adapters and shrouds are made modular and releasably coupled, then component lifespan is extended through selective replacement, but the number of parts increases
Solution Approach 1:
The tooling assembly is segmented into the dipper lip, adapter, and shroud as separate replaceable components. This segmentation allows the dipper lip to remain in service longer while only the worn adapter or shroud is replaced, extending the overall lifespan of the stationary dipper structure.
Solution Approach 2:
The modular design enables selective discarding and recovery of components. When the shroud wears out, only the shroud is discarded and replaced, while the adapter and dipper lip are recovered and reused. This selective replacement strategy extends the lifespan of more durable components.
Data Source
AI summary
A tooling system includes a dipper having a lip with a plurality of apertures, the apertures extending at least partially through the lip. The tooling system also includes a modular adapter configured to be inserted partially into one of the apertures along an axis of insertion. The adapter is configured to be releasably coupled to the lip. The adapter includes a first portion configured to extend into the aperture, and a second portion configured to extend out of the aperture. The tooling system also includes a locking system including a fastener configured to extend at least partially into the aperture and couple to the adapter to the lip.