Vehicle Body Frame Joint Structure for Torsion-Resistant Beam Connection
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Solution Overview
Problem
Existing vehicle body frame joints have insufficient connection strength and stiffness, leading to easy deformation and poor torsion resistance due to bolts being located in the same plane, which limits the structural integrity of commercial vehicle frames.
Innovation Solution
A body frame joint design featuring transverse and longitudinal beam connecting plates with mounting members and sliding grooves, where the central axes of the mounting members are in parallel planes, enhancing connection strength, stiffness, and torsion resistance by distributing loads effectively and reducing stress concentration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If bolts are located in the same plane for connecting transverse and longitudinal beams, then the structure is simple and easy to manufacture, but the connection strength and stiffness are insufficient leading to easy deformation
Solution Approach 1:
The patent transitions from a single-plane bolt arrangement to a multi-dimensional configuration by introducing mounting members arranged in both a first direction (along the transverse beam) and a second direction (along the longitudinal beam), creating a spatial distribution of connection points that enhances connection strength and stiffness while maintaining manufacturing feasibility
2Force
If bolts are located in the same plane, then the manufacturing process is simple, but the torsion resistance is poor and deformation occurs easily
Solution Approach 1:
The mounting members are arranged in multiple directions (first direction along transverse beam, second direction along longitudinal beam) rather than a single plane, creating a three-dimensional connection pattern that significantly improves torsion resistance while maintaining ease of manufacture through standardized mounting member designs
Solution Approach 2:
The connection structure is segmented into multiple mounting members distributed in different directions and positions, with each mounting member independently contributing to torsion resistance. This segmentation allows the joint to better distribute and resist multi-directional forces while maintaining manufacturing simplicity
3Stability of the object's composition
If multiple mounting members are arranged in parallel planes, then connection stiffness is improved, but the device complexity increases
Solution Approach 1:
The patent introduces mounting members arranged in parallel planes at different positions along the beams, creating a multi-planar connection structure. This dimensional arrangement significantly improves connection stiffness by distributing loads across multiple planes while controlling complexity through systematic positioning and standardized mounting member designs
Data Source
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AI summary
A vehicle body framework joint and a vehicle having same. A vehicle body framework joint (1) comprises: a horizontal beam connecting plate (10) provided with a first horizontal beam mounting piece (110) and a second horizontal beam mounting piece (120) and mounted on a horizontal beam (30) of a vehicle body framework by means of the first horizontal beam mounting piece (110) and the second horizontal beam mounting piece (120); and a longitudinal beam connecting plate (20) provided with a first longitudinal beam mounting piece (210) and a second longitudinal beam mounting piece (220) and mounted on a longitudinal beam (40) of the vehicle body framework by means of the first longitudinal beam mounting piece (210) and the second longitudinal beam mounting piece (220). In this way, the vehicle body framework joint (1) and mounting points of the vehicle body framework form a connection within two planes, thereby improving the rigidity and strength of the vehicle body framework joint (1) and optimizing torsion resistance performance