Engine Support Mount Screw Orientation for Assembly Access
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Solution Overview
Problem
Existing screw connections between support arms and assembly mounts in motor vehicles often face accessibility issues during assembly, particularly due to the alignment of the central axis being parallel to the main load direction, leading to unreliable connections and potential tension in the assembly mount.
Innovation Solution
The central axis of the screw is oriented perpendicularly to the main bearing load direction, with a form-fitting interaction between the base part and the bearing core, featuring projections that enhance assembly ease and anti-twist protection, and a conical design for increased clamping effect, along with an inclined screw arrangement for improved accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the central axis of the screw is oriented parallel to the main load direction, then the screw connection aligns with the bearing load direction, but accessibility during assembly becomes poor
Solution Approach 1:
The screw connection is reoriented from a vertical arrangement (parallel to load direction) to a horizontal arrangement (perpendicular to load direction). This dimensional change allows the screw to be accessed from the side rather than from above, dramatically improving assembly accessibility while maintaining connection reliability through the form-fitting projection design
2Stability of the object's composition
If a form-fitting connection is implemented between base part and bearing core, then anti-twist protection is provided, but device complexity increases
Solution Approach 1:
Conical surfaces are used instead of cylindrical or flat surfaces for the form-fitting connection. The conical projections on the bearing core mate with corresponding conical surfaces on the base part, providing anti-twist protection through geometric interlocking while maintaining manufacturing simplicity through standard conical machining or casting processes
Data Source
Figure 1
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AI summary
Device for fixing a vibration-reducing aggregate support of a support arm of an aggregate comprises connecting surfaces (14b) formed as protrusions (14c) on a bearing core (14) which partially comprise the base part (18) in the connecting region. Preferred Features: The protrusions and the connecting region of the base part are V-shaped. The protrusions and the corresponding connecting region of the base part are conically aligned with each other. The base part is structured so that the length of the hole (18a) receiving the screw (16) is four times the nominal diameter of the screw.