Linear-to-2DOF Movement Conversion Apparatus for Compact High-Torque Actuation
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Solution Overview
Problem
Existing high-torque operation systems have complex structures and occupy significant volume, making them unsuitable for precise operations in fields like robotics and aerospace, where a simple and compact solution is required.
Innovation Solution
A movement conversion apparatus that utilizes a frame, auxiliary moving bodies, and actuators to convert linear movements into a 2-DOF movement, with elastic supports and a rotating body, allowing for curvilinear translation and rotation without a complex gear system, minimizing occupied volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a reduction gear is used to generate high-torque output, then torque is increased, but the structure becomes complicated and occupied volume increases
Solution Approach 1:
The patent replaces the traditional mechanical reduction gear system with a magnetic field-based actuation system. Multiple actuators generate linear movements that are converted into rotational movement through a moving body, eliminating the need for complex gear mechanisms while maintaining high-torque capability
Solution Approach 2:
The patent converts linear movements in multiple dimensions into rotational movement. By coordinating the linear movements of multiple actuators along different axes, the system generates effective rotation without requiring traditional rotational gear mechanisms, thus simplifying the overall structure
2Force
If a reduction gear is coupled to the rotating motor, then high-torque output is achieved, but occupied volume increases
Solution Approach 1:
The patent merges the functions of multiple actuators and the moving body into an integrated system. The actuators and moving body work together as a unified mechanism to generate both high torque and rotational movement simultaneously, eliminating the need for separate reduction gear components and reducing overall volume
Solution Approach 2:
The magnetic field-based actuation system replaces the bulky mechanical reduction gear, achieving high-torque output in a more compact form factor suitable for space-constrained applications
3Force
If a complex gear system is used, then high-torque output is generated, but the structure is not suitable for precise operations in micro units
Solution Approach 1:
The patent divides the system into multiple independent actuators that each contribute to the overall motion. This segmentation allows for precise control of each actuator's linear movement, which collectively produces accurate rotational movement, making the system suitable for precise operations in micro units
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 apparatus achieves high-torque output with a simple structure, enabling precise operations in compact spaces by converting linear movements into curvilinear translations and rotations, suitable for applications in robotics and aerospace.
Implementation Method 1
the auxiliary supports may be made of elastic material to give an elastic force for restoring the auxiliary moving bodies to original locations when the auxiliary moving bodies make a location movement
Data Source
AI summary
A movement conversion apparatus has a frame, a plurality of auxiliary moving bodies connected to the frame to allow linear movement, a plurality of actuators configured to move the plurality of auxiliary moving bodies with respect to the frame, a main moving body surrounded by the plurality of auxiliary moving bodies and connected to the plurality of auxiliary moving bodies to have a hollow formed therein, and a rotating body rotatable on the basis of a rotary shaft fixed through the hollow. The plurality of auxiliary moving bodies are selectively moved to adjust a location of the main moving body. The rotating body is inserted into the hollow to rotate by a movement of the main moving body.