Brake Dust Retainer Drawer for Faster Caliper Maintenance
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Solution Overview
Problem
Conventional brake systems, especially in helicopters, face difficulties in accessing and disassembling dust retainer boxes due to their design, which leads to time-intensive maintenance and increased risk of damage from debris and sparks, and complicates the removal and cleaning of brake components.
Innovation Solution
An integrated dust retainer assembly with a removably mounted drawer within the brake caliper allows for easy collection and disposal of debris, and a pin-slot locking mechanism simplifies the assembly and disassembly of brake components without the need for special tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional dust box is used to retain dust and sparks, then protection against harmful factors is improved, but device complexity and difficulty of maintenance increase
Solution Approach 1:
The dust box is divided into a fixed outer shell and a removable inner drawer. The drawer can be extracted independently from the shell, allowing maintenance personnel to access and empty the dust collection area without dismantling the entire brake assembly. This segmentation directly reduces maintenance complexity while maintaining protection against sparks and dust.
Solution Approach 2:
The drawer is designed to be completely removable from the dust box shell. By extracting the drawer as a separate component, the system allows easy removal of accumulated dust and debris without requiring removal of the entire dust box or disassembly of brake components. This extraction principle simplifies maintenance operations significantly.
2Object-affected harmful factors
If a conventional dust box with multiple fasteners is used, then protection against harmful factors is improved, but maintenance time increases
Solution Approach 1:
The dust box is segmented into a fixed shell and a removable drawer that requires minimal fasteners for attachment. This segmentation allows the drawer to be quickly removed and reattached during maintenance intervals, significantly reducing the time required compared to conventional dust boxes that require multiple fasteners to be removed for access.
Solution Approach 2:
The drawer incorporates a dynamic fastening system that allows for quick release and reattachment. The fastening mechanism is designed to be easily operated by hand without requiring special tools, enabling rapid maintenance operations while maintaining secure protection during normal brake operation.
3Object-affected harmful factors
If a conventional dust box design is used, then protection against harmful factors is improved, but accessibility to brake components worsens
Solution Approach 1:
The dust box is segmented into a fixed outer shell that provides protection and a removable inner drawer that can be independently accessed. This segmentation allows maintenance personnel to remove the drawer to access the brake components behind it, while the shell remains in place to continue providing protection against sparks and dust. This resolves the contradiction by allowing component access without compromising protection.
Solution Approach 2:
The drawer is extracted as a removable component that sits in front of the brake components. When the drawer is removed, direct access to the brake components is provided while the dust box shell remains installed to maintain protection. This extraction approach allows easy accessibility to brake components while preserving the protective function.
4Object-affected harmful factors
If a conventional dust box requiring full removal for cleaning is used, then protection against harmful factors is improved, but loss of time increases
Solution Approach 1:
The dust box is segmented into a fixed shell and a removable drawer. The drawer can be completely extracted from the shell for cleaning purposes, allowing maintenance personnel to easily remove accumulated dust and debris without having to remove the entire dust box or disassemble brake components. This segmentation dramatically reduces cleaning time while maintaining protection during operation.
Solution Approach 2:
The drawer is designed to be fully extractable from the dust box shell. This extraction capability allows the drawer to be removed and cleaned separately in a convenient location, eliminating the need to dismantle the entire dust box assembly or work in constrained spaces. Cleaning time is significantly reduced compared to conventional designs requiring full removal.
Data Source
AI summary
A dust retainer for a brake system comprising a retainer receptacle mounted integrally to one or more components of the brake assembly, wherein the retainer receptacle comprises a drum have first and second open ends, one open end being secured to a component of the brake system and the other open end being closed by a dust retainer cap, the drum defining a space within which a brake disk of the brake system is located, in use, wherein removal of the dust retainer cap allows the brake disk to be removed from the open end of the retainer drum, and a removable drawer integrated in the drum. A fastening means to removably secure brake components to each other is also disclosed.