Coaxial Dual Electro-Mechanical Unit for Vibration Mitigation
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Solution Overview
Problem
Conventional carriers driven by dual electro-mechanical units are prone to greater vibrations due to the heavy weight distribution of motors, which causes increased impacts on the wheels on either side when subjected to force, similar to a laterally positioned dumbbell.
Innovation Solution
A common construction that accommodates two rotation parts from revolving electro-mechanical units arranged in parallel, with coaxial outputs achieved through transmissions disposed on each side, innovatively positioned between two wheels to mitigate these impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If dual electro-mechanical units with independent motors are used to drive wheels on both sides, then the carrier can operate with individual drive capability, but the weight distribution becomes unbalanced causing greater vibrations and impacts on the wheels
Solution Approach 1:
The patent merges two separate electro-mechanical units into a single integrated dual-unit structure with a common stator core. The two armatures share common magnetic poles and magnetic paths, creating a unified construction that balances weight distribution while maintaining individual drive capability through separate commutators and brush assemblies.
Solution Approach 2:
The patent introduces asymmetry in the magnetic circuit design by providing individual magnetic poles for each armature within the common stator structure. This allows independent control of each drive unit while the overall symmetric weight distribution mitigates vibrations.
2Power
If heavy motors are positioned laterally to drive wheels on both sides, then the carrier achieves sufficient driving power, but the center of gravity distribution becomes unbalanced similar to a dumbbell shape
Solution Approach 1:
The patent combines two motor units into a single integrated structure where the stator, magnetic poles, and magnetic paths are shared. This merging consolidates the weight into a more centralized and balanced configuration, improving center of gravity distribution while maintaining the combined driving power of both armatures.
3Ease of operation
If independent reduction gear or rim motors are used for each wheel, then the carrier achieves individual wheel control, but the overall device complexity and weight increase
Solution Approach 1:
The patent merges two complete electro-mechanical units into a single integrated construction where the stator, magnetic poles, and magnetic paths are common to both armatures. This reduces device complexity by eliminating redundant components while maintaining individual wheel control through separate commutators and brush assemblies for each armature.
Data Source
AI summary
A common construction is made up of two rotation parts each including a revolving electro-mechanical unit arranged in parallel and an output of both rotation parts being made coaxial by means of a transmission disposed on each side of the common construction, the construction being arranged between two wheels to mitigate the impacts when wheels on either side are subject to force.