Quick Disconnect Coupler for Junior Dragster Drivetrain Separation
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Solution Overview
Problem
Current methods for moving Junior Dragsters require manual removal and reinstallation of belts to disconnect the engine from the rear wheels, which is time-consuming and inefficient.
Innovation Solution
A quick disconnect system comprising a main shaft, a sprocket shaft, a coupler that moves between connected and disconnected configurations, and a release button to facilitate easy disconnection and reconnection of the engine and rear wheels, allowing for independent rotation of the shafts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual belt removal and reinstallation is used to disconnect the engine from the rear wheels, then the structure remains simple, but the time required to move the vehicle increases significantly
Solution Approach 1:
The drive train is segmented into separable components: the main shaft connected to the engine, the sprocket shaft connected to the rear wheels, and the coupler that can be quickly engaged or disengaged. This segmentation allows the engine and rear wheels to be independently connected or disconnected without manual belt manipulation, dramatically reducing the time required to move the vehicle while maintaining mechanical simplicity through modular design
Solution Approach 2:
The coupler is pre-configured with interlocking elements and engagement features that automatically align and secure the main shaft and sprocket shaft when engaged. The spring-loaded release button is pre-positioned to facilitate one-handed operation. This preliminary preparation of the disconnect mechanism eliminates the need for time-consuming manual belt removal and reinstallation during actual vehicle moves
2Reliability
If the coupler uses multiple interlocking elements and engagement features to ensure secure connection, then the reliability of torque transfer improves, but the device complexity increases
Solution Approach 1:
Multiple functional elements are merged into a single integrated coupler component. The interlocking elements, engagement features, spring mechanism, and release button are all combined within the coupler housing, creating a unified disconnect device that provides reliable torque transfer through multiple engagement points without requiring separate components for each function, thus maintaining reliability while controlling overall system complexity
Solution Approach 2:
The spring-loaded release button automatically returns to its engaged position after being pressed, and the interlocking elements self-align and self-secure when the coupler is engaged. This self-service mechanism ensures reliable torque transfer through automatic engagement and disengagement without requiring complex manual manipulation or additional control systems, maintaining high reliability with minimal operational complexity
Data Source
AI summary
A quick disconnect system includes a main shaft, a sprocket shaft mounted around the main shaft, a coupler configured to move relative to the main shaft and the sprocket shaft between a connected configuration wherein the coupler is configured to connect the main shaft to the sprocket shaft such that torque is transferred between the main shaft and the sprocket shaft, and a disconnected configuration wherein the main shaft is configured to rotate relative to the sprocket shaft, and a release button configured to be actuated to release the coupler from the connected configuration or the disconnected configuration.