Removable Wiper Wall Scraper Debris Management
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Solution Overview
Problem
Existing scraper assemblies face issues with debris accumulation between overlapping side walls during transitions between scraping, transport, and dump configurations, leading to potential interference and incomplete debris removal.
Innovation Solution
The scraper assembly features removable sidewalls with non-planar orientations and L-shaped profiles, coupled to the frame using fasteners that deform out of planar alignment, allowing for efficient debris containment and removal without requiring cutting tools for assembly or disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If overlapping side walls are used to contain debris, then debris containment is improved, but debris accumulation between walls occurs during configuration transitions
Solution Approach 1:
The sidewalls are designed to be movable relative to the bucket sidewalls during configuration transitions. The sidewalls can move from an overlapping position during scraping to a retracted position during dumping, preventing debris accumulation while maintaining containment during operation.
Solution Approach 2:
The sidewall assembly is segmented into removable sidewalls that can be independently positioned and adjusted. This allows the sidewalls to be moved or removed to prevent debris accumulation between the sidewalls and bucket during transitions between configurations.
2Stability of the object's composition
If fixed sidewalls are used for structure stability, then structural stability is improved, but complete debris removal during dumping is hindered
Solution Approach 1:
The sidewalls transition from a fixed overlapping position during scraping to a movable or retracted position during dumping. This dynamic adjustment allows the sidewalls to clear away from the bucket sidewalls, enabling complete debris removal while maintaining structural stability during the scraping operation.
3Productivity
If removable sidewalls are used to prevent debris accumulation, then debris removal is improved, but assembly complexity increases
Solution Approach 1:
The sidewall system is divided into removable sidewalls that can be independently assembled and disassembled. Each sidewall is a separate component that can be attached to the frame, allowing for simplified manufacturing and maintenance while enabling complete debris removal during dumping operations.
4Reliability
If non-planar orientations are used for sidewalls, then debris containment is improved, but manufacturing precision requirements increase
Solution Approach 1:
The sidewalls feature non-planar orientations and L-shaped profiles at specific locations to optimize debris containment. The non-planar surfaces are designed to contact the bucket sidewalls at predetermined points, providing effective debris containment while allowing for standard manufacturing tolerances through the use of brackets and fasteners.
Data Source
AI summary
A scraper having a frame with a first removable sidewall removably coupled to the frame, a second removable sidewall removably coupled to the frame, a rear bucket pivotally coupled to the frame and having a dump position and a carry position, the rear bucket comprising a first rear sidewall positioned on a first side of the rear bucket and a second rear sidewall positioned on a second side of the rear bucket. Wherein, the first removable sidewall is positioned adjacent to the first rear sidewall and the second removable sidewall is positioned adjacent to the second rear sidewall. Further wherein, as the rear bucket transitions between the carry position and the dump position, the first and second removable sidewalls move relative to the surface of the corresponding first and second rear sidewalls.