CV Joint Detent Release for Easier Off-Road Driveline Service
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Solution Overview
Problem
Existing off-road recreational vehicles face challenges in easily disengaging driveline components for maintenance, inspection, or replacement, particularly due to complex coupling mechanisms that require intricate procedures.
Innovation Solution
The implementation of a constant velocity (CV) joint assembly with a plunge pin and actuation pin mechanism allows for easy disengagement of driveline components by axially moving the plunge pin to release the detent assembly, enabling straightforward removal and installation of driven systems from drive systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex coupling mechanism is used to maintain engagement between driveline components, then reliability of power transmission is improved, but ease of disengagement for maintenance deteriorates
Solution Approach 1:
The coupling mechanism is segmented into modular components including the detent assembly (with detent ball and detent groove), the plunge pin mechanism, and the actuation pin system. This segmentation allows the engagement and disengagement functions to be independently controlled - the detent assembly maintains reliable power transmission during operation, while the plunge pin and actuation pin provide a simple means to release the engagement when needed for maintenance.
2Reliability
If a secure engagement mechanism is implemented to prevent power loss, then reliability of driveline connection is improved, but device complexity increases
Solution Approach 1:
The detent assembly automatically engages and secures the driveline connection without requiring external intervention or complex control systems. The spring-loaded detent ball automatically finds and engages the detent groove, providing self-securing engagement that maintains reliable connection while minimizing the need for additional complex components or control mechanisms.
Solution Approach 2:
The plunge pin acts as an intermediary mechanism that simplifies the disengagement process. Instead of requiring direct manipulation of the detent assembly or complex release mechanisms, the actuation pin interacts with the plunge pin to indirectly release the detent engagement, reducing overall system complexity while maintaining secure connection during operation.
3Ease of repair
If a simple disengagement mechanism is used, then ease of maintenance is improved, but reliability of engagement during operation may deteriorate
Solution Approach 1:
The coupling mechanism transitions from a static, permanently engaged state to a dynamic, controllable engagement state. The spring-loaded detent ball can automatically engage and disengage based on the position of the plunge pin, which is controlled by the actuation pin. This dynamic system maintains reliable engagement during operation while allowing simple disengagement for maintenance when the actuation pin is manipulated.
Data Source
AI summary
Embodiments relate to an off-road vehicle comprising a frame, including at a frame, a passenger compartment, a driveline that includes at least a drive system and a driven system, and a constant velocity (CV) joint for coupling the driven system to the drive system. The CV joint includes a housing, a coupling shaft, a detent, a plunge pin and an actuation pin, wherein the actuation pin has a first end that is accessible via an aperture in the housing, wherein actuation of the actuation pin determines whether the plunge pin is in the first position or the second position.