Front Axle Support Crossmember Attachment Device
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Solution Overview
Problem
Existing front axle supports face challenges in achieving high flexural rigidity while being lightweight, and they complicate the convenient fitting and attachment of the steering system housing, which is typically fixed integrally within the support.
Innovation Solution
A front axle support design featuring a shaped metal part with a recess inserted into the crossmember, allowing the steering system housing to be attached from below, combined with a crossmember of a hollow body and multiple attachment devices for enhanced stiffness and reduced weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the steering system housing is fixed integrally within the front axle support, then the structural rigidity is improved, but the ease of operation for fitting and attachment deteriorates
Solution Approach 1:
The front axle support is divided into modular components: the crossmember with integrated attachment devices and the steering system housing as a separate attachable unit. This segmentation allows the housing to be fitted and attached independently, improving ease of operation while maintaining structural rigidity through the integrated attachment devices.
Solution Approach 2:
The attachment devices are pre-integrated into the crossmember structure during manufacturing, with pre-positioned fastening points and guiding features. This preliminary action ensures that when the steering system housing is installed, it automatically aligns with the correct attachment points, simplifying the fitting process while ensuring rigid connection.
2Weight of moving object
If the front axle support uses lightweight materials and hollow structures, then the weight is reduced, but the flexural rigidity deteriorates
Solution Approach 1:
The front axle support employs composite construction combining hollow body structures for weight reduction with strategically placed reinforcement elements and integrated attachment devices that provide localized stiffness. The crossmember uses a hollow profile with internal ribs or stiffening features that maintain flexural rigidity while minimizing weight.
Solution Approach 2:
The attachment devices utilize the third dimension by extending vertically from the crossmember with open recesses that accommodate fastening elements. This vertical dimension allows the lightweight hollow crossmember to achieve adequate flexural rigidity through three-dimensional structural design rather than increasing material thickness.
3Ease of operation
If the attachment device is open underneath with a vertical portion, then the ease of operation for attachment from below is improved, but the device complexity increases
Solution Approach 1:
The attachment device serves multiple functions: it provides structural connection between the crossmember and steering system housing, offers guidance for proper alignment during installation, and enables attachment from below through its open vertical recess. This multi-functionality reduces the need for separate alignment features or complex installation mechanisms.
Solution Approach 2:
The attachment device features a nested structure where the shaped metal part with recess is inserted into a cavity in the crossmember, creating a compact integrated assembly. This nesting approach allows the attachment device to provide complex functionality while maintaining a space-efficient design that does not significantly increase overall device complexity.
Data Source
AI summary
The invention relates to a front axle support for a motor vehicle, including side members and a crossmember interconnecting the side members, the crossmember being in the form of a hollow body and being provided with at least one attachment device for attaching a steering system housing.