Research on the Optimization of Gear Reducers Based on Fine-toothed Gears
Release time:
2024-12-31
Source:
A type of fine-toothed gear that can reduce gear vibration noise has become a new research direction in the gear industry. This article extracts the model of a two-stage gear reducer gear system, imports it into ANSYS software in .x_t format for meshing, and uses ANSYS software to perform stress analysis on the helical gear reducer and the fine-toothed gear reducer, obtaining stress cloud maps for both gear systems. The comparative results analyze the stress conditions of the fine-toothed gear and the helical gear.
Electric vehicles eliminate the engine and exhaust system of fuel vehicles, removing the vibrations and noise caused by the engine, resulting in a quieter and smoother riding environment. Without the masking effect of engine vibration noise, the noise and vibration issues of the reducer gears are more easily exposed. In recent years, a new type of fine-toothed gear that can effectively reduce gear vibration noise and enhance its strength has gradually become a new research focus in the field of gear manufacturing. During the operation of gear transmission, due to periodic load pressure, the contact points are prone to fatigue damage, and sudden major overloads or impact loads may lead to gear breakage. In high-speed and high-load environments, the load in the meshing area is highly concentrated, and the temperature rises rapidly, which may cause failures in the lubrication system, leading to surface adhesion phenomena.
In the gear design phase of engineering equipment, the contact pressure and deformation degree of gears have a significant impact on their load-bearing capacity and stability. The traditional method is to construct a theoretical framework for gears based on the principles of elastoplastic mechanics, adjusting relevant parameters through formula transformations to ultimately derive the contact strength of the gears. The finite element method, as a new technical means, has been widely used in the field of gear design and calculation both internationally and domestically. It can effectively handle the contact setting issues and force constraints during the gear transmission process, and accurately obtain stress and strain data of the ZhongChi wheel during the transmission process, facilitating corresponding optimization design and verification work. In addition, finite element technology has high accuracy, speed, and visualization characteristics, helping to reduce the time consumption of creating complex mathematical models and the time required for laboratory testing, and is considered a relatively advanced computational method.
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