Transmission Housing Common Mounting for Lighter Transfer Case Assembly
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Solution Overview
Problem
Current transmission assemblies for motor vehicles require excessive material and weight due to sprues, reinforcing elements, and multiple screws, making assembly complex and inefficient.
Innovation Solution
A transmission assembly design where the hinged support and transfer case share common attachment points on the transmission housing, reducing the number of attachment points and geometry, and using an adapter to simplify assembly and reduce weight, allowing for flexible positioning of the hinged support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If separate attachment points are used for hinged support and transfer case, then assembly stability is improved, but device complexity and weight increase
Solution Approach 1:
The patent combines the attachment functions for the hinged support and transfer case into a single common attachment point on the transmission housing. This merging of functions reduces the number of attachment points from two separate locations to one shared location, thereby simplifying the device structure while maintaining the ability to securely fasten both components.
Solution Approach 2:
The common attachment point is designed to serve multiple functions: it fastens both the hinged support and the transfer case to the transmission housing. This multi-functional attachment point eliminates the need for separate attachment points, reducing structural complexity and weight while maintaining assembly stability.
2Reliability
If separate attachment points are used for hinged support and transfer case, then fastening reliability is improved, but weight increases
Solution Approach 1:
By merging the attachment functions into a single common attachment point, the patent eliminates redundant structural elements such as sprues and reinforcing elements that would be required for separate attachment points. This reduction in material usage directly decreases the weight of the transmission housing while maintaining fastening reliability through the optimized common attachment structure.
3Strength
If multiple screws are used for assembly, then fastening strength is improved, but assembly time increases
Solution Approach 1:
The common attachment point design allows both the hinged support and transfer case to be fastened using a reduced number of screws compared to separate attachment points. This consolidation maintains sufficient fastening strength while significantly reducing the number of fastening operations required, thereby decreasing assembly time.
4Ease of manufacture
If adapter geometry is fixed, then manufacturing simplicity is improved, but adaptability decreases
Solution Approach 1:
The adapter is designed with adjustable geometry that can be modified depending on the specific installation requirements. This dynamic adaptability allows the same basic adapter design to accommodate different hinged support positions and configurations, providing versatility without requiring completely different adapter designs for each application.
Data Source
AI summary
A transmission assembly has a transmission housing, a hinged support and a transfer case which form separate structural units. The transmission housing includes at least one common connection point by which the hinged support and the transfer case are jointly coupled to the transmission housing.