Friction Coupling with Elastic Spacer for Torque-Limit Idling
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Solution Overview
Problem
Existing power transmission devices with rotating bodies, such as gears, require complex structures to manage power transmission and blocking, and lack efficient mechanisms for generating operating torque during power blockage or controlling torque transmission based on magnitude.
Innovation Solution
A coupling device with a spacer and pressing member, where the spacer is an elastic member generating friction between rotating bodies, allowing for power control by adjusting the frictional force to manage torque transmission and blockage, enabling operation even when power is blocked.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional power transmission device uses two rotating bodies with gear mechanisms to transmit and block power, then power transmission control is achieved, but the device structure becomes complicated
Solution Approach 1:
The patent introduces a spacer as an intermediary element between the first and second rotating bodies. This spacer, combined with a pressing member, creates a friction-based power transmission mechanism that replaces complex gear interactions. The spacer mediates the power transmission by generating controlled friction forces, enabling both power transmission and blocking functions with simpler components.
Solution Approach 2:
The invention substitutes traditional mechanical gear-based power transmission with a friction-based system using the spacer and pressing member. By replacing complex gear mechanisms with frictional contact between the spacer and rotating bodies, the device achieves power transmission and blocking control with significantly reduced structural complexity.
2Reliability
If a power transmission device blocks power transmission between rotating bodies, then power control is achieved, but the ability to generate operating torque during blockage is lost
Solution Approach 1:
The patent employs dynamic friction control through the pressing member, which can adjust the pressing force against the spacer. This dynamic adjustment allows the system to transition between power transmission and power blocking states while maintaining the ability to generate operating torque. The friction-based mechanism enables operational flexibility where torque can be generated even during blocked states by adjusting the pressing force.
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
The coupling device achieves simple and effective power control by generating operating torque during power blockage and blocking power transmission based on torque magnitude, providing a stable and adjustable solution for power management.
Implementation Method 1
The spacer is formed of an elastic member, and generates a frictional force between the spacer and the one rotating body when the pressing member performs the pressing
Implementation Method 2
The spacer is formed of an elastic member
Data Source
AI summary
A coupling device includes a first rotating body and a second rotating body disposed coaxially with each other and rotatable relative to each other. The coupling device includes a spacer disposed between the first rotating body and the second rotating body; and a pressing member for performing pressing of at least one rotating body of the first rotating body and the second rotating body against the spacer. The spacer is formed of an elastic member, and generates a frictional force between the spacer and the one rotating body when the pressing member performs the pressing. The one rotating body and the spacer are formed to have a configuration that allows the one rotating body or the spacer to be idled when torque larger than the frictional force acts between the one rotating body and the spacer.