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为探讨大型齿轮传动装置轻量化及减振降噪新途径,以某矿用减速器大型齿轮为研究原型,初步设计了泡沫铝填充结构齿轮.以扭转刚度满足使用要求为约束条件,以降低齿轮的质量并提高其动态特性为优化目标,对泡沫铝填充结构齿轮进行优化.对三种齿轮的前5阶模态进行仿真分析,对其降噪性进行实验研究.结果表明,与原型齿轮相比,优化后和初始设计的泡沫铝填充结构齿轮的前5阶振型固有频率均有所提高,最大提高量分别为16.1%和1.9%;而振幅均有所降低,最大降低量分别为10.0%和5.4%;相同转速情况下前两种齿轮的传动噪声均较后一种齿轮的传动噪声有所降低,最大降低量分别为11.1%和5.5%.前两种齿轮的质量分别较后一种齿轮减轻10.92%和15.93%.证明了泡沫铝填充结构齿轮在提高大型齿轮轻量化和减振降噪特性方面的有效性.
In order to explore a new way of weight reduction and noise reduction of large-sized gear transmission, taking a large gear of a mining reducer as the research prototype, a foam aluminum filled structure gear was preliminarily designed, and the torsional stiffness meets the requirements of use as a constraint to reduce the gear The quality of the gear and the optimization of the dynamic characteristics of the gears are optimized.After the simulation of the first five modes of the three kinds of gears, the noise reduction of the gears is experimentally studied.The results show that, compared with the prototype gear phase The natural frequencies of the first 5 modes of the optimized aluminum foam structure gears with optimized and initial design were all increased by 16.1% and 1.9% respectively, while the amplitudes decreased and the maximum reductions were 10.0 % And 5.4%, respectively. The transmission noise of the first two gears under the same speed is lower than that of the latter gear, the maximum reduction is 11.1% and 5.5% respectively. The quality of the first two gears are respectively lower than the latter The reduction of 10.92% and 15.93% of the gear types proved the effectiveness of the aluminum foam-filled structural gear in improving the weight reduction and noise reduction characteristics of large gears.