Brake Caliper Positioning Assembly for Wheel-End Servicing
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Solution Overview
Problem
Heavy-duty vehicle disc brake systems require cumbersome and potentially hazardous manual removal of caliper components for servicing, often necessitating the disconnection of air hoses, which can introduce contaminants and require the use of cranes, especially in constrained spaces, complicating the alignment of guide pins during reassembly.
Innovation Solution
A brake component positioning assembly that allows the caliper and associated components to be moved away from the wheel end without disconnecting the air hose or using a crane, facilitating servicing and alignment through a mechanism that includes a modified torque plate with cutouts and lift blocks to position the caliper away from the wheel end, enabling easier access and minimizing contamination risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual removal of caliper components is performed, then servicing can be done, but the process becomes cumbersome and hazardous requiring crane usage
Solution Approach 1:
A positioning assembly with positioning members is introduced as an intermediary device between the caliper and the wheel end. This assembly provides controlled positioning and support during servicing operations, eliminating the need for crane usage while ensuring safe and accurate component removal and installation.
Solution Approach 2:
The positioning assembly enables service technicians to perform self-service operations without requiring external heavy equipment like cranes. The assembly includes features such as positioning members and support surfaces that allow direct manual handling and positioning of caliper components during maintenance.
2Ease of operation
If air hose is disconnected during caliper removal, then component access is improved, but contamination risk increases
Solution Approach 1:
The positioning assembly is configured to provide proper positioning and support for the caliper before any disconnection operations begin. This preliminary positioning ensures that components are accessible and can be serviced without requiring air hose disconnection, thereby maintaining system integrity and preventing contamination.
3Ease of operation
If caliper is positioned away from wheel end, then servicing access is improved, but alignment during reassembly becomes difficult
Solution Approach 1:
Positioning members serve as intermediary reference elements that remain attached to the wheel end while the caliper is positioned away for servicing. These members provide fixed reference points that guide the caliper back to its precise original position during reassembly, ensuring proper alignment without requiring complex measurement procedures.
Solution Approach 2:
The positioning assembly includes visual indicators such as colored markings or reflective surfaces on positioning members that align with corresponding features on the caliper. These visual cues facilitate quick and accurate alignment during reassembly by providing obvious visual references for proper component positioning.
4Weight of moving object
If crane is used for caliper removal, then heavy components can be lifted, but service complexity and time increase
Solution Approach 1:
The positioning assembly includes integrated lifting features and support surfaces that enable service technicians to manually position and support heavy caliper components without requiring external crane equipment. The assembly distributes weight across multiple contact points and provides mechanical advantage through its structural design.
Solution Approach 2:
The positioning assembly acts as an intermediary support structure that temporarily bears the weight of caliper components during servicing operations. This eliminates the need for crane-based heavy lifting while providing stable support and controlled positioning throughout the maintenance process.
Data Source
AI summary
A brake component positioning assembly that is removably connectable to a component of a heavy-duty vehicle. The brake component positioning assembly enables a brake system component to be positioned away from a wheel end of the heavy-duty vehicle to allow removal or servicing of at least one component of a wheel end assembly or the vehicle brake system. In one embodiment, the brake component positioning assembly includes a base block disposed in a cutout of a torque plate. A positioning block slidably engages one or more guide pins received by or disposed through the base block. A positioning bolt threadably engages the positioning block, whereby upon rotation of the positioning bolt, the positioning block and brake system component are positioned away from the bottom block and wheel end. Components of the brake component positioning assembly can be removably connected to each other.