Flexure Wobbler Motion Converter With Low-Friction Energy Storage
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Solution Overview
Problem
Existing mechanical systems that convert between linear and rotary motion often require multiple moving parts, such as bearings, which can lead to friction, maintenance issues, and increased complexity.
Innovation Solution
The use of flexure assemblies and a wobbler assembly with a cylindrical body to convert between linear and rotary motion, reducing the number of moving parts and friction by storing energy elastically rather than dissipating it through friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional mechanical systems with bearings are used to convert between linear and rotary motion, then the conversion function is achieved, but friction increases and maintenance requirements increase
Solution Approach 1:
The patent replaces traditional mechanical bearing systems with a flexure-based mechanism. The flexure assembly uses elastic deformation of a flexible beam structure to enable relative motion between the linear moving component and rotary component, eliminating the need for bearings and thereby reducing friction and maintenance requirements.
Solution Approach 2:
The invention employs a flexure assembly consisting of a flexible beam with varying cross-sectional thickness. This flexible structure acts as a compliant mechanical element that allows motion conversion through elastic bending, replacing rigid mechanical joints and reducing energy loss to friction.
2Adaptability or versatility
If multiple moving parts are used in motion conversion systems, then the conversion function is achieved, but device complexity increases
Solution Approach 1:
The patent integrates multiple functions into a single flexure assembly component. The flexible beam simultaneously provides structural support, enables linear-to-rotary motion conversion, and acts as a spring element for energy storage, thereby reducing the total number of separate moving parts while maintaining conversion functionality.
Solution Approach 2:
The flexure assembly serves multiple purposes: it acts as a mechanical linkage for motion conversion, a spring element for energy storage and shock absorption, and a structural component connecting different parts of the system. This multi-functionality reduces overall system 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
This solution enables efficient bidirectional conversion between linear and rotary motion with reduced friction and maintenance needs, allowing for constant or variable rotational speed and torque, and oscillating linear motion patterns.
Implementation Method 1
The plurality of flexure assemblies may include a first flexure having a having a first end, a second end, a length extending in a direction parallel to the first axis, a width extending radially from the first axis, and a thickness.
Data Source
AI summary
An apparatus and a method for converting linear motion to rotary motion are provided. In some embodiments, the apparatus may include a plate having a plurality of connection points and a channel. The apparatus may also include a wobbler having an end that extends along the first axis and a cylindrical body having a second axis that is offset from the first axis by a first angle. The plate may be rotatably connected to the cylindrical body and configured to rotate about the second axis. The apparatus may further include a plurality of flexure assemblies connected to the plurality of connection points of the plate.