Planetary Gear Assembly for Speed Increase Without Torque Loss
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Solution Overview
Problem
Conventional gear systems fail to increase output speed of motors with reduced torque loss and are often too large for compact applications, leading to inefficiencies and space constraints.
Innovation Solution
A gear system design featuring a first shaft through a first gear with planetary gears connected to a carrier, engaging with both gears, allowing for increased output speed with minimal torque loss and reduced material usage, achieved by a 1:1 gear ratio that maintains output torque while doubling rotational speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional gear systems with gear ratio 1:2 are used to increase output speed, then output speed is doubled, but output torque is reduced to half
Solution Approach 1:
The gear system is segmented into multiple planetary gear stages, each contributing to the overall speed multiplication while maintaining torque through distributed load paths across multiple planetary gears engaging with sun and ring gears
Solution Approach 2:
The planetary gears are nested within a carrier structure, with sun gears at the center, planetary gears orbiting around them, and ring gears enclosing the entire planetary assembly, creating a compact nested configuration that achieves speed multiplication without proportional torque loss
2Speed
If compound gear trains are used to achieve speed increase, then output speed increases, but the system becomes too large in height and width
Solution Approach 1:
The gear system transitions from conventional linear stacking of gears to a three-dimensional planetary configuration where multiple gears operate simultaneously in radial and axial directions, achieving compact volume utilization while maintaining gear ratio functionality
Solution Approach 2:
Multiple gear functions are merged into a single planetary stage where sun gears, planetary gears, ring gears, and carriers work together in one integrated assembly, eliminating the need for multiple separate gear stages and reducing overall system dimensions
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 gear system effectively doubles the rotational speed of the output shaft compared to the input shaft with minimal torque loss, reducing material and space requirements, and enhancing energy efficiency in applications like automobiles.
Implementation Method 1
a plurality of planetary gears connected to the carrier. The planetary gears each include a plurality of teeth configured to engage with the plurality of teeth of the second surface of the first gear and the plurality of teeth of the first surface of the second gear
Data Source
AI summary
The present disclosure relates to gear systems. In at least one embodiment, a gear system includes a first shaft disposed through an orifice of a first gear. The first gear has a first surface and a second surface disposed opposite the first surface, and the second surface has a plurality of teeth. The gear system includes a second gear having a first surface and a second surface disposed opposite the first surface, and the first surface has a plurality of teeth. The gear system has a carrier connected to the first shaft at the first surface of the carrier. The gear system has a plurality of planetary gears connected to the carrier. The gear system includes a bracket connected to the first gear at the first end of the bracket. The first shaft and the second shaft rotate on an axis.