Modular Chassis Cross Member for Fast Replacement and Strength
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Solution Overview
Problem
Chassis frame cross members in vehicles, particularly in heavy-duty vehicles like trucks and buses, are prone to breaking due to strong forces and require complex and time-consuming disassembly and assembly processes involving cutting and welding, leading to weakened replacements.
Innovation Solution
A cross member design with a center piece comprising two parts and a reinforcement member, allowing for easier assembly and disassembly without cutting and welding, enhancing strength through aligned flanges, webs, and reinforcement members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the center piece is made as one part, then the structural strength is improved, but the assembly and disassembly operations become complex and time-consuming
Solution Approach 1:
The cross member is divided into a modular structure with a center piece and side pieces that can be assembled and disassembled separately. The center piece connects to side pieces through detachable connections, allowing the side pieces to be removed without cutting or welding operations, thus reducing assembly and disassembly time while maintaining structural integrity through proper connection design
2Ease of manufacture
If cutting and welding operations are performed for replacement, then the cross member can be reassembled, but the replacement cross member becomes weaker and the process becomes complex
Solution Approach 1:
The cross member is segmented into modular components (center piece and side pieces) with detachable connections, eliminating the need for cutting and welding during replacement. This allows the side pieces to be simply detached and reattached to the center piece, simplifying the assembly process while avoiding the strength reduction associated with cutting and welding operations
Solution Approach 2:
A detachable connection system acts as an intermediary between the center piece and side pieces, providing a reversible joining mechanism that replaces permanent welding connections. This intermediary connection method allows for easy assembly and disassembly while maintaining the structural strength needed for cross member functionality
Data Source
AI summary
A cross member for a chassis frame of a vehicle, the cross member comprising a first part and a second part, the first part comprising a first top flange, a first bottom flange parallel to the first top flange, a first web, and a first end surface. The second part comprises a second top flange, a second bottom flange parallel to the second top flange, a second web, and a second end surface parallel to the first end surface. A portion of the first end surface, when in projection in a plane parallel to the first top flange is oblique in relation to a plane perpendicular to a transversal axis. The cross member further comprises a reinforcement member, secured to the first and second webs.