Jaw Crusher Support Frame Modular Reconfiguration
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Solution Overview
Problem
Jaw crushers face challenges in reconfiguring between 'wedge' and 'shim' settings, which is labor-intensive and compromises structural integrity, requiring significant modifications like welding and machining that can weaken the support frame.
Innovation Solution
A jaw crusher support frame with specifically configured flanges and a force transmission wall that allows for interchangeable operation between wedge and shim settings without the need for structural modifications, featuring apertures for easy insertion and extraction of wedge and shim components, and reinforcement ribs to minimize stress concentrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If significant modifications like welding and machining are performed to reconfigure between wedge and shim settings, then the support frame can be adapted to different operating modes, but the structural integrity of the support frame is compromised
Solution Approach 1:
The support frame is divided into modular components including removable end plates, separable wedge components, and distinct flange assemblies. This segmentation allows the frame to be reconfigured between wedge and shim settings by simply removing and replacing end plates rather than performing welding or machining operations on the main frame structure, thereby preserving structural integrity while enabling adaptability
Solution Approach 2:
The support frame is designed with universal features that accommodate both wedge and shim settings through a common base structure. The flanges are configured with standardized apertures and mounting interfaces that can receive either wedge components or shim components, allowing the same frame to perform multiple functions without modification
2Strength
If the support frame is made robust to withstand loading forces, then strength is improved, but weight increases making manufacture, transport and maintenance difficult
Solution Approach 1:
The support frame employs local quality by concentrating reinforcement only in critical load-bearing areas such as the flanges and their connection points to the crushing zone. Non-critical areas use thinner, lighter sections. This selective reinforcement maintains necessary strength to withstand loading forces while minimizing overall weight
Solution Approach 2:
The frame design utilizes three-dimensional spatial optimization, particularly in the flange configuration where material is distributed strategically in multiple dimensions to achieve maximum strength-to-weight ratio. The flanges extend in specific orientations to provide structural support while minimizing material usage
3Adaptability or versatility
If labor-intensive modifications are performed to reconfigure the support frame, then adaptability between settings is achieved, but time and labor resources are consumed
Solution Approach 1:
The support frame is prepared in advance with pre-configured features including pre-drilled apertures in the flanges, pre-positioned mounting interfaces, and pre-assembled end plate components. These preliminary actions during manufacturing eliminate the need for time-consuming welding, cutting, or machining operations during field reconfiguration, allowing rapid exchange between wedge and shim settings
Solution Approach 2:
The reconfiguration system is designed to be dynamic rather than static, allowing the operator to quickly switch between wedge and shim modes by removing one type of component and installing the other. The standardized interfaces and removable end plates enable this dynamic reconfiguration without permanent modifications
Data Source
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AI summary
A jaw crusher having a movable jaw support frame configured to facilitate interchange between shim and wedge settings. The support frame is configured specifically to minimise stress concentrations and to provide the time efficient interchange between wedge and shim settings without a need to weld, cut and machine regions of the support frame.