Pivotable Actuator Mounting Stud for Air Disc Brake
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Solution Overview
Problem
The existing methods for mounting an actuator assembly to an air disc brake caliper face challenges due to the need for precise alignment and interference issues with traditional fixed bolts, leading to reduced or lost function of the air disc brake assembly when the actuator is not flush with the caliper.
Innovation Solution
The use of pivotable mounting studs attached to the actuator housing, allowing for installation at various angles between 0 and 45 degrees, which enables easier tool access and alignment without interference with the caliper body, as the studs can pivot within a receiving portion, facilitating proper mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed bolt is used for mounting the actuator assembly to the caliper, then the actuator can be securely attached, but the tool cannot access the nut for proper installation due to interference with the caliper body
Solution Approach 1:
The mounting stud is made pivotable rather than fixed, allowing it to rotate between a first position for tool access and a second position for secure attachment. This dynamic element resolves the contradiction by enabling both easy tool operation and reliable mounting through sequential positioning.
2Manufacturing precision
If the actuator is mounted flush with the caliper face, then proper alignment is achieved, but the fixed bolt configuration prevents tool access and creates interference with the caliper body
Solution Approach 1:
The pivotable mounting stud allows the actuator to be mounted flush with the caliper face while eliminating interference issues. The stud can pivot to clear the caliper body during tool access, maintaining precise alignment without creating operational conflicts.
3Measurement precision
If a special tool is used to affix the nut to the bolt at a precise angle, then proper mounting alignment is achieved, but the tool cannot surround the nut due to the angle of insertion and caliper body interference
Solution Approach 1:
The pivotable mounting stud enables the tool to access and surround the nut by allowing the stud to pivot to a first position that clears the caliper body. This dynamic adjustment maintains precise mounting angle requirements while eliminating tool access restrictions.
Data Source
AI summary
A braking assembly for an air disc brake comprises an actuator assembly having a service portion, at least one mounting stud attached to the service portion, and an air disc brake caliper having a bore for receiving the at least one mounting stud. The mounting stud is pivotable with respect to the service portion for installation on the air disc brake caliper.