河南科技大学学报：自然科学版

针对某型电动叉车减速器啸叫噪声大,影响一次装配合格率的情况,分析了减速器啸叫噪声产生的机理。为了降低减速器对齿轮制造误差和安装误差的敏感性,对电动叉车减速器输入轴小齿轮进行了修形。在相同条件下,对采用未修形和已修形的齿轮所装配的减速器,分别进行了振动噪声试验。试验结果表明:基于齿轮点接触理论的齿轮修形可以有效降低减速器啸叫噪声,从而提高减速器的装配效率及装配合格率。

Aiming at the loud howlround of the reducer in a certain type of electric forklift,which affected the qualified rate of assembly,the formation mechanism of howlround of the reducer was analyzed. The pinion of the reducer input shaft was modified to reduce the manufacturing error and installation error sensitivity of gear in the reducer. The vibration and noise test of reducer assembled with or without modified gear was carried out respectively under the same condition. The test result shows that the gear modification based on the theory of point contact can effectively reduce the reducer howlround,so as to improve the assembly efficiency and qualified rate of the reducer.