Bi-Rotating Wheel Transmission With One-Way Clutches to Prevent Idle Drag
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Solution Overview
Problem
Conventional bi-rotating directional input and constant rotating directional output wheel systems suffer from idle rotating following damp, resulting in ineffective load when operated in one of the two bi-rotating input directions, as the wheel set in the other direction is driven, leading to inefficient energy transfer.
Innovation Solution
The implementation of unidirectional transmission devices between the driving rotating directional input wheel sets and the bi-rotating directional joint input shaft, as well as between the constant rotating directional output rotation part and the joint input shaft, allows for controlling the rotating direction of the input shaft to prevent reverse rotation and enable output with the same or different speed ratios, thereby avoiding idle rotation and enhancing energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional bi-rotating directional input and constant rotating directional output wheel system is operated in one of the two bi-rotating input directions, then the wheel set in the other input direction is driven, but idle rotating following damp is generated which is an ineffective load
Solution Approach 1:
The transmission system is segmented into two independent transmission paths, each equipped with its own unidirectional transmission device. This segmentation allows each path to operate independently without interfering with the other, eliminating the idle rotation problem where one wheel set would be driven when operating in the opposite direction.
Solution Approach 2:
Unidirectional transmission devices are introduced as intermediary components between the input shaft and the two transmission paths. These intermediaries selectively engage only the appropriate transmission path based on the input rotation direction, preventing the harmful idle rotation of the non-active path while maintaining smooth operation of the active path.
2Loss of energy
If unidirectional transmission devices are installed to prevent reverse rotation and enable output with the same or different speed ratios, then energy efficiency is enhanced, but device complexity increases
Solution Approach 1:
The unidirectional transmission devices serve multiple functions simultaneously: they prevent reverse rotation, enable selective engagement of transmission paths, and eliminate idle rotation. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity while achieving significant energy efficiency improvements.
Solution Approach 2:
The unidirectional transmission devices automatically engage or disengage based on the input rotation direction without requiring external control mechanisms. This self-service characteristic simplifies the control system and reduces overall device complexity while maintaining the ability to prevent reverse rotation and enhance energy efficiency.
Data Source
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AI summary
A bi-rotating directional input and constant rotating directional output wheel system for a power system driven by a manual force or engine or electric motor or fluid motor; the wheel system is enabled to generate output with the same speed ratio while being in an input rotating direction or and with a different speed ratio while being in a different input rotating direction, characterized in that a first unidirectional transmission device (303) is installed between a first driving rotating directional input wheel (202, 402, 602) and a bi-rotating directional joint input shaft (2000), a second (301) between a first driving rotating directional output wheel (204, 404, 604) and a constant rotating directional output rotation part (3000) and a third (302) between the constant rotating directional output rotation part (3000) and the joint input shaft (2000). Fig.1