Clutched Component Radial Locking Mechanism
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Solution Overview
Problem
Existing driveline components with clutches used in differential assemblies are susceptible to improvements in terms of efficient power transmission and locking mechanisms, particularly in ensuring relative rotation inhibition and torque distribution between output shafts.
Innovation Solution
A driveline component with a differential assembly and a locking mechanism that includes a sleeve and locking elements, allowing for selective engagement and disengagement to non-rotatably couple or allow relative rotation of the outer differential case and rotating members, utilizing a cam surface and sliding surface to facilitate easy transition between locked and unlocked positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking dog is used to selectively transmit rotary power or lock driveline components, then the clutch can inhibit relative rotation between differential case and rotating members, but the force required to maintain the locked position becomes excessive
Solution Approach 1:
The locking element is designed to move dynamically between engaged and disengaged positions along the radial direction, allowing it to transition smoothly between locked and unlocked states. The control member enables this dynamic positioning, optimizing the force required to maintain the locked position while ensuring reliable power transmission when locked.
Solution Approach 2:
A control member is introduced as an intermediary component to coordinate the movement of the locking element. This control member translates rotational motion into radial movement of the locking element, reducing the direct force required on the locking element itself while maintaining reliable engagement with the cavities in the rotating member.
2Adaptability or versatility
If a locking element is moved radially outward to disengage from cavities, then relative rotation between differential case and rotating member is allowed, but the transition between locked and unlocked positions requires excessive force
Solution Approach 1:
The control member acts as a mediator that converts rotational motion into radial movement of the locking element. By using the rotational motion of the differential case to drive the control member, which in turn moves the locking element radially, the system reduces the direct force required to transition between locked and unlocked positions while maintaining full adaptability for selective engagement.
Solution Approach 2:
The locking element's radial position is made dynamic rather than fixed, allowing it to move between engaged and disengaged states. This dynamic positioning, controlled by the control member's rotation, enables smooth transitions between locked and unlocked positions with reduced force requirements while preserving the ability to selectively engage when needed.
3Power
If a conventional clutch mechanism is used, then power transmission is achieved, but the device complexity increases without sufficient benefit
Solution Approach 1:
The clutch mechanism is merged with the differential case structure, where the control member is integrated into the differential case and the locking element is positioned within the rotating member. This integration combines the power transmission function with the differential's existing rotational motion, achieving effective clutching without adding separate complex mechanisms.
Solution Approach 2:
The control member serves multiple functions: it converts rotational motion to radial movement, controls the locking element's position, and enables both locked and unlocked states. This multi-functionality reduces the need for separate components, simplifying the overall device while maintaining full power transmission capability when needed.
Data Source
AI summary
The present teachings provide for a clutched component including a first member, a second member, and a clutch. The first member can have an output portion. The second member can have an input portion that is disposed within the output portion. The clutch can include a plurality of first lock members and a control member for coordinating radially inward movement of the first lock members to drivingly couple the output portion and the input portion.