Band-Pressed Gear Structure for Noise Reduction and Rigidity
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Solution Overview
Problem
Existing gear structures in mobile objects suffer from reduced rigidity and gear noise due to the formation of annular grooves on gear surfaces, which compromises torque transmission reliability and generates gear rattling and meshing noise.
Innovation Solution
A gear structure incorporating a band member that surrounds the gear member and presses the gear teeth inwardly, maintaining rigidity while reducing gear noise through vibration absorption and friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If annular grooves are formed on gear surfaces to absorb vibrations, then gear noise is reduced, but the degree of rigidity of the gear is reduced
Solution Approach 1:
A band member serving as an intermediary element is introduced between the gear teeth and the external environment. This band member absorbs vibrations and reduces gear noise without requiring modifications to the gear structure itself, thereby maintaining the gear's rigidity while achieving noise reduction
2Object-generated harmful factors
If annular grooves are formed on gear surfaces, then vibrations are absorbed, but torque transmission reliability is reduced
Solution Approach 1:
The band member acts as a mediator that absorbs vibrations generated during torque transmission. By placing this vibration-absorbing element externally on the gear rather than modifying the gear teeth themselves, the torque transmission path remains intact and reliable while vibrations are effectively dampened
3Object-generated harmful factors
If annular grooves are formed on gear surfaces to reduce meshing noise, then gear deformation is minimized, but the gear structure becomes less rigid
Solution Approach 1:
The band member serves as an external intermediary that reduces meshing noise through vibration absorption. Since it is applied externally to the gear surface rather than requiring grooves to be cut into the gear teeth, the gear's structural rigidity is preserved while meshing noise is effectively reduced
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 band member effectively reduces gear noise and maintains rigidity by absorbing vibrations and minimizing gear impact and deformation noise, enhancing torque transmission efficiency.
Implementation Method 1
a band member surrounding the gear member and pressing the plurality of gear teeth inwardly
Implementation Method 2
pressing the plurality of gear teeth inwardly
Implementation Method 3
reducing gear noise through vibration absorption and friction
Data Source
AI summary
A gear structure includes a gear member including an outer circumferential surface provided with a plurality of gear teeth, and a band member surrounding the gear member and pressing the plurality of gear teeth inwardly.