Slim Universal Joint With Independent X-Y Axis Locking
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Solution Overview
Problem
Current universal joints are not capable of independently locking the X-Y rotating axes, restricting rotary motion and occupying less space due to their slim structure, which is a limitation in applications requiring independent axis locking and motion transmission.
Innovation Solution
A slim type universal joint with a spherical inner part, central ring, and outer ring design that includes specific pin and hole configurations allowing independent locking and rotation of the X-Y axes through cap pins, enabling torque transmission and free motion without axis restriction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If universal joint uses slim structure, then space occupation is reduced, but axis locking capability is lost
Solution Approach 1:
The universal joint is divided into separate functional modules: inner part with spherical structure for X-axis rotation, outer part with hollow bearing bush for Y-axis rotation, and cap pins for independent locking. This segmentation allows each component to perform its specific function while maintaining overall compactness.
Solution Approach 2:
The inner part with spherical structure is nested within the outer part containing the hollow bearing bush. The cap pins are inserted through aligned holes in both parts to achieve locking. This nested configuration enables independent locking of X and Y axes while maintaining a compact slim structure.
2Adaptability or versatility
If universal joint allows free rotation on X-Y axes, then motion flexibility is improved, but independent locking capability is reduced
Solution Approach 1:
The universal joint provides dynamic functionality by allowing free rotation on both X and Y axes during normal operation, then enabling independent locking of each axis when needed. The cap pins can be inserted or removed from aligned holes to switch between locked and free states, providing adaptability for different operational requirements.
3Ease of operation
If universal joint uses traditional locking mechanism, then axis locking is achieved, but device complexity increases
Solution Approach 1:
The locking function is extracted as a separate, simple mechanism using cap pins that insert through aligned holes in the inner and outer parts. This extracted locking mechanism is independent from the rotation mechanisms, allowing simple locking without adding complexity to the overall universal joint structure.
4Adaptability or versatility
If universal joint transmits torque on different axes, then motion transmission capability is improved, but structural simplicity is reduced
Solution Approach 1:
The universal joint achieves multi-functionality by enabling torque and rotary motion transmission on both X and Y axes simultaneously. The spherical inner part enables rotation on one axis while the hollow bearing bush in the outer part enables rotation on the perpendicular axis, allowing the single device to perform multiple motion transmission functions.
Data Source
AI summary
A slim type universal joint is used to transmit torque generated by an output/driving shaft and/or rotary motion on a rotation axis on a system of engine vehicles connected thereto into the output/driving shaft of a different axis and allows independent locking of the rotation axis. The slim type universal joint includes a locking hole, a central-lower part, a central-upper part, pin holes, an outer-lower part and an outer-upper part, a first short cap pin, a second short cap pin and a long cap pin.