Connecting Rod Recess Layout for Transverse Stop Bolt Clearance
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Solution Overview
Problem
Existing rail vehicle designs face challenges in accommodating a connecting rod due to limited installation space, especially when using a ball joint with a transverse stop bolt, leading to potential collisions and asymmetrical arrangements that affect chassis rotation and vibration transmission.
Innovation Solution
A connecting rod design featuring bores at each end for attaching rubber-metal elements, with a recess intersecting the longitudinal axis, allowing it to pivot and accommodate a transverse stop bolt without collision, ensuring horizontal alignment for suspension movement and vertical rotation, manufactured from steel or aluminum alloys via casting or forging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a transverse stop bolt is integrated into the ball joint to prevent lateral movement, then the ball joint stability is improved, but the installation space for a connecting rod is reduced
Solution Approach 1:
The connecting rod is designed with a recess that allows the transverse stop bolt to pass through it. This nesting arrangement enables the bolt to be integrated into the ball joint while the connecting rod simultaneously occupies the same spatial region without collision, effectively resolving the space conflict between the bolt and the connecting rod.
2Ease of operation
If the connecting rod is positioned asymmetrically next to the transverse stop, then the connecting rod can be installed, but the chassis rotates around a vertical axis under acceleration or braking forces
Solution Approach 1:
The connecting rod features an asymmetric recess design where the longitudinal axis of the recess is rotated 90 degrees relative to the longitudinal axes of the bores. This asymmetric configuration allows the transverse stop bolt to pass through the recess while maintaining proper alignment of the bores for horizontal pivoting, enabling both installation feasibility and rotational stability.
3Area of stationary object
If the connecting rod uses a C-shaped recess to accommodate the transverse stop bolt, then the installation space conflict is resolved, but bending stress occurs on the connecting rod
Solution Approach 1:
The recess is designed as a through-opening that completely penetrates the base body of the connecting rod, dividing the base body into two symmetric portions. This segmentation allows the transverse stop bolt to pass through without creating stress concentration points, maintaining the structural integrity and strength of the connecting rod while resolving the space conflict.
Data Source
Figure 1~2
Figure 3~4
AI summary
Linkage rod (1) comprising a base body extending along a longitudinal axis, which at each of its ends comprises a bore (2, 3) oriented transversely to the longitudinal axis, wherein the base body has at least one recess (4) whose respective longitudinal axis intersects the longitudinal axis of the base body.