Rubber Bearing Half-Shell Locking Structure for Noise Reduction
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Solution Overview
Problem
Rubber mounts used to connect vehicle components, such as axle carriers to vehicle bodies, experience unwanted noise due to relative movement between half-shells, which current designs fail to adequately address.
Innovation Solution
The rubber mount features projections and depressions on the peripheral ends of the half-shells that form a form-fitting connection, preventing or reducing relative movement between the half-shells, and the rubber body connects the half-shells to the inner part, providing a captive installation and reducing noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the outer sleeve is composed of two separate half-shells, then the manufacturing cost and ease of assembly are improved, but relative movement between the half-shells occurs causing unwanted noise
Solution Approach 1:
The outer sleeve is divided into two identical half-shells that can be manufactured separately and assembled around the inner part and rubber body. This segmentation allows for easier manufacturing and assembly while the rubber body ensures the half-shells remain firmly connected, preventing relative movement and noise.
Solution Approach 2:
The rubber body acts as an intermediary element that connects the two half-shells to each other and to the inner part. This intermediary connection ensures that the half-shells are firmly secured together, eliminating relative movement and the associated noise while maintaining the benefits of segmented construction.
2Reliability
If the half-shells are connected by the rubber body, then the connection reliability is improved, but the complexity of the structure increases
Solution Approach 1:
The connection function is merged into the rubber body itself, which simultaneously connects the two half-shells to each other and to the inner part. This merging of connection functions into a single element simplifies the overall structure while ensuring reliable connections without requiring additional separate connection components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design effectively reduces noise by restricting the mobility of the half-shells, simplifies installation, and allows for cost-effective production while maintaining structural integrity and noise suppression.
Implementation Method 1
a rubber body arranged between the inner part and the outer sleeve... the half-shells are connected to the inner part by means of the rubber body
Data Source
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AI summary
Rubber bush with an inner part (2) which extends in an axial direction (x), an outer sleeve (3) which surrounds the inner part (2) at a spacing and consists or is composed of two half shells (4, 5) which are configured as identical parts, and a rubber body (6) which is arranged between the inner part (2) and the outer sleeve (3), wherein the half shells (4, 5) are connected to the inner part (2) by means of the rubber body (6) and, at their circumferential-side ends which face one another, have projections (7, 8) and depressions (9, 10), into which the projections (7, 8) are inserted or can be inserted.