Torque Transfer Apparatus With Segmented Ring Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing torque transfer apparatuses, such as clutches and brakes, face limitations in efficiently transitioning between collapsed and expanded conditions, leading to suboptimal torque transmission and potential mechanical inefficiencies.
Innovation Solution
A torque transfer apparatus comprising a ring structure with interlocking elements that move between collapsed and expanded conditions through axial force, allowing engagement or disengagement of engagement surfaces to transfer torque, featuring a unique configuration of non-parallel contact surfaces and interlocking profiles for stable sliding motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional torque transfer apparatus are used, then torque transmission can be achieved, but mechanical inefficiencies occur during transition between collapsed and expanded conditions
Solution Approach 1:
The ring structure is divided into multiple wedge-shaped elements that can move independently relative to each other. Each element has contact surfaces that interact with adjacent elements, allowing the ring to expand and collapse through controlled movement of individual segments rather than as a monolithic structure, reducing mechanical inefficiencies during transition.
Solution Approach 2:
The apparatus transitions between collapsed and expanded conditions through dynamic movement of the wedge-shaped elements. The elements can slide relative to one another along their contact surfaces, enabling smooth transitions that maintain structural integrity while improving torque transmission efficiency.
2Ease of operation
If the ring structure expands and collapses, then engagement surfaces can be engaged or disengaged for torque transfer, but maintaining structural integrity during movement is challenging
Solution Approach 1:
By segmenting the ring into wedge-shaped elements with interlocking contact surfaces, the structure maintains integrity during expansion and collapse. Each element remains connected to its neighbors through the contact surfaces, preventing disassembly while allowing controlled movement between engaged and disengaged states.
Solution Approach 2:
The wedge-shaped elements are arranged in a nested configuration where each element fits within the annular space defined by its neighbors. During expansion, the elements move outward while maintaining their nested relationship, and during collapse, they return to their nested positions, preserving structural coherence throughout the transition.
3Reliability
If non-parallel contact surfaces are used, then stable sliding motion is achieved, but manufacturing complexity increases
Solution Approach 1:
The non-parallel contact surfaces are implemented only at the interfaces between adjacent wedge-shaped elements where sliding motion occurs. The outer and inner surfaces of the ring maintain simple cylindrical geometries for easy manufacturing, while the localized non-parallel contact surfaces provide the necessary stability for sliding motion without significantly increasing overall manufacturing complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and reliable torque transfer with minimal mechanical inefficiencies, maintaining structural integrity and allowing for precise control between engaged and disengaged states, suitable for both clutch and brake applications.
Implementation Method 1
Each element is in the general form of a wedge, and the wedges are assembled together in a circumferentially overlapping fashion to form the ring structure
Implementation Method 2
At least some of the elements are preferably provided with interlocking profiles for interlocking with an adjacent element
Implementation Method 3
the first and second engagement surfaces may be engaged to transfer a driving torque between the ring structure and the rotatable member
Data Source
AI summary
A torque transfer apparatus and method of use is described. The apparatus (60) comprises a plurality of elements (62) assembled together to form a ring structure oriented in a plane around a longitudinal axis. The ring structure defines a first engagement surface. A structure (56) defining a second engagement surface is rotatable with respect to the ring structure. The ring structure is operable to be moved between a collapsed condition and an expanded condition by movement of the plurality of elements, and movement between the collapsed condition and the expanded condition engages or disengages the first and second engagement surfaces. The apparatus can be configured to transfer a driving torque (e.g. a clutch) or a braking force (e.g. a torque brake).