Motor Vehicle Assembly Bearing Torsion Resistance
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Solution Overview
Problem
Existing assembly bearing arrangements for motor vehicles lack a compact and easy-to-manufacture design that provides effective torsion resistance and easy installation, while also ensuring structural simplicity and weight efficiency.
Innovation Solution
The assembly bearing arrangement features a U-shaped stop bracket that bridges the bearing core, with stop arms and buffers acting in defined directions to create travel limits and a torsion-resistant mount, using non-vertical fastening elements to establish beneficial force flows and a compact structure, and includes reinforcement ribs and rubber-elastic stop buffers for additional support and overload prevention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screw connections are aligned in vertical axis direction (Z direction), then the assembly bearing can be securely mounted to the carrier part, but the torsion resistance of the bearing mount is not significantly increased
Solution Approach 1:
The patent applies dimensionality change by transitioning from vertical (Z-direction) screw alignment to horizontal (Y-direction) screw alignment. This spatial reconfiguration transforms the force flow direction, enabling the fastening elements to effectively resist torsional moments while maintaining secure mounting. The horizontal arrangement creates a broader moment arm against rotational forces, significantly enhancing torsion resistance without increasing structural complexity.
2Weight of moving object
If a compact structure is designed for the assembly bearing, then weight is reduced and ease of installation is improved, but manufacturing precision and structural stability may be compromised
Solution Approach 1:
The patent merges multiple functions into the bearing housing structure itself. The housing integrates mounting surfaces, fastening element receptacles, and structural reinforcement features directly into its design. This consolidation eliminates the need for separate mounting brackets or additional structural components, reducing overall weight while maintaining structural stability through the inherent rigidity of the integrated design.
Solution Approach 2:
The patent applies local quality by strategically reinforcing specific regions of the bearing housing where stresses concentrate. Rather than uniformly thickening the entire structure, localized ribs or strengthened zones are positioned precisely at critical load-bearing areas. This approach minimizes added weight while ensuring structural integrity and stability under operational loads.
3Strength
If non-vertical fastening elements are used, then beneficial force flows are established and torsion resistance is improved, but the ease of manufacture and installation may be reduced
Solution Approach 1:
The patent applies preliminary action by pre-configuring the bearing housing with integrated fastening element receptacles positioned and oriented for horizontal mounting. These receptacles are formed as part of the housing manufacturing process, establishing precise alignment features before assembly. This pre-positioning eliminates complex alignment requirements during installation, making horizontal fastening as straightforward as vertical mounting while achieving superior torsion resistance.
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 configuration allows for a structurally simple, compact, and lightweight assembly bearing that provides effective torsion resistance and easy installation, with stop buffers acting in multiple directions to prevent overloads and ensure stable force distribution during vehicle operation.
Implementation Method 1
rubber-elastic stop buffers for additional support and overload prevention
Implementation Method 2
stop buffers being disposed between the legs of the stop bracket and the stop arms and acting in a defined direction
Implementation Method 3
a vibration-damping bearing
Implementation Method 4
the bearing core also having stop arms which are not described in greater detail and disposed diametrically opposite on the bearing core
Data Source
AI summary
An assembly bearing arrangement for a motor vehicle includes an assembly bearing having a bearing housing, a vibration-damping bearing, and a bearing core connectable to a power train element. The bearing housing is connected with a body-fixed carrier part by a first fastening element, oriented in a direction that differs from a vertical direction, in a torsion-resistant manner, and by a second fastening element, oriented substantially in the vertical axis direction. A U-shaped stop bracket bridges the bearing core and is firmly connected to the bearing housing. The bearing core is formed with diametrically opposite stop arms, which in basic position are spaced from legs of the stop bracket by a gap distance. A first stop buffer is arranged on inner surfaces of the stop bracket and/or the bearing core, and second stop buffers are arranged on the legs of the stop bracket and/or the stop arms between the legs and the stop arms.