Composite Clutch With Limited Torque Coupling
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Solution Overview
Problem
Conventional controllable clutches lack functionality beyond simple engaging and releasing, failing to provide a mechanism for controlled torque transfer when in a released state, limiting their application in scenarios requiring continuous energy transfer with torque management.
Innovation Solution
A controllable composite clutch with a physical limited torque device is installed axially or radially between input/output shafts, enabling continued rotary kinetic energy transfer and generating slip rotational speed differentials through smaller torque when in a released state, utilizing mechanisms like preload friction, viscous force, or fluid damping for torque control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional controllable clutch is used with only engaging/releasing function, then the device complexity is low, but the functionality and adaptability are limited
Solution Approach 1:
The patent combines a controllable clutch with a physical limited torque device into a single composite clutch assembly. The limited torque device is integrated either axially between input/output shafts or radially between input shaft and output shaft, creating a unified structure that provides both engaging/releasing control and limited torque coupling functions without requiring separate independent systems
Solution Approach 2:
The composite clutch is designed to perform multiple functions: when engaged, it transfers rotary kinetic energy like a conventional clutch; when released, it maintains limited torque coupling capability through the physical limited torque device. This multi-functionality allows the single device to adapt to different operational requirements without needing separate components
2Force
If the clutch is completely released to stop torque transfer, then torque management is achieved, but continuous energy transfer capability is lost
Solution Approach 1:
The physical limited torque device provides localized torque limiting functionality within the composite clutch assembly. When the main clutch is released, this localized device continues to transmit torque through its physical limitations (friction, viscosity, or damping), ensuring that complete torque interruption does not occur while still achieving torque management objectives
3Force
If a physical limited torque device is added to provide limited torque coupling, then torque management capability is improved, but device complexity increases
Solution Approach 1:
The physical limited torque device is nested within the composite clutch structure in a space-efficient manner. The axial configuration places the limited torque device between the input/output shafts in the axial direction, while the radial configuration positions it between the input shaft and output shaft radially, allowing both functions to coexist in a compact integrated assembly
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 torque management and continuous energy transfer in both engaged and released states, allowing for controlled slip and differential speed generation without the need for re-engagement, enhancing the clutch's functionality and adaptability.
Implementation Method 1
utilizing mechanisms like preload friction, viscous force, or fluid damping for torque control
Implementation Method 2
utilizing mechanisms like preload friction, viscous force, or fluid damping for torque control
Implementation Method 3
utilizing mechanisms like preload friction, viscous force, or fluid damping for torque control
Data Source
AI summary
A controllable composite clutch having limited torque while being in a released state, in which a clutch capable of being controlled for performing engaging/releasing function and a physical limited torque device having relatively smaller torque being axially installed between an input/output shaft and an output shaft, or being radially installed between an input shaft and a cylindrical outputting rotation part; so that when the clutch is controlled to be in an engaged state, the rotary kinetic energy between the input shaft and the output shaft is transferred through the clutch; and when the clutch is controlled to be in a released state, the physical limited torque device performs limited torque coupling, such that the rotary kinetic energy between the input shaft and the output shaft can continue to be transferred and the slip rotational speed differential is generated due to over-torque can be carried out by smaller set torque.