Asynchronous Drive Power Transmission via Elastic Energy Storage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional drive power transmission devices have fixed timing for transmitting drive power, making it difficult to achieve flexible and asynchronous power transmission with respect to the input shaft rotation.
Innovation Solution
A drive power transmission device comprising a first and second rotation shaft, a transmission member that accumulates and releases elastic energy through deformation, and a control system to manage the connection and disconnection of the transmission member with the shafts, allowing asynchronous power transmission by converting kinetic energy into elastic energy and back.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If drive power is transmitted at fixed timing synchronized with input shaft rotation, then the transmission timing is stable and predictable, but the system lacks flexibility for asynchronous power transmission
Solution Approach 1:
The patent applies the dynamics principle by making the transmission member capable of changing its state dynamically between connected and disconnected positions relative to the input shaft. This allows the transmission timing to be adjusted flexibly without being fixed to specific rotational positions, thereby achieving asynchronous power transmission while managing system complexity through controlled state transitions.
Solution Approach 2:
The transmission member serves as an intermediary element between the input shaft and output shaft. By introducing this intermediate component that can selectively connect or disconnect, the system achieves flexible timing control without requiring complex direct control mechanisms between the shafts, thus balancing adaptability with manageable complexity.
2Loss of energy
If drive power is transmitted continuously, then power delivery is smooth and consistent, but energy efficiency decreases due to inability to accumulate and release elastic energy
Solution Approach 1:
The patent implements periodic action by enabling the transmission member to alternately connect and disconnect from the input shaft in a controlled manner. This periodic engagement allows the system to accumulate elastic energy during disconnection phases and release it during connection phases, reducing energy loss while maintaining effective power transmission and improving overall productivity.
Solution Approach 2:
The system utilizes parameter changes by varying the connection state of the transmission member between connected and disconnected positions. This parameter variation enables the accumulation and release of elastic energy, transforming the transmission mode from continuous to intermittent, thereby reducing energy loss while maintaining or improving power transmission efficiency.
3Adaptability or versatility
If the transmission member is always connected to the input shaft, then power transmission is continuous and reliable, but the system cannot achieve asynchronous transmission or arbitrary transmission ratios
Solution Approach 1:
The patent applies dynamics by enabling the transmission member to transition between connected and disconnected states relative to the input shaft. This dynamic capability allows the system to achieve asynchronous transmission and arbitrary transmission ratios while maintaining reliability through controlled state transitions that ensure power is reliably transmitted when needed.
Solution Approach 2:
The transmission member is designed with multi-functionality, serving both as a power transmission element when connected and as an energy accumulation element when disconnected. This universal design allows the same component to achieve multiple objectives including asynchronous transmission, variable transmission ratios, and reliable power delivery, thereby balancing adaptability with reliability.
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 flexible asynchronous drive power transmission between the first and second rotation shafts, minimizing energy loss and allowing for arbitrary transmission ratios and torque ratios, effectively functioning as an overdrive device.
Implementation Method 1
a transmission member (16) capable of accumulating and releasing elastic energy by means of its own deformation
Data Source
Figure 1
Figure 2
Figure 3
AI summary
There is provided a drive power transmission device capable of transmitting drive power asynchronously with rotation of an input shaft. The drive power transmission device 10 includes a first rotation shaft 12, a second rotation shaft 14, an elastic member 18, and a vibration element 20. One end of the elastic member 18 is fixed to the second rotation shaft 14 at a position spaced from its central axis, while the other end of the elastic member 18 is fixed to the vibration element 20. The vibration element 20 is capable of being placed in either one of a first state of being connected to the first rotation shaft 12 and a second state of being disconnected from the first rotation shaft 12.