考虑重合度的电动车差减齿轮传动啮合性能分析优化  

Analysis and Optimization of Meshing Performance for Differential Gear Transmission for Electric Vehicle Considering Contact Ration

作　　者：翁燕祥[1] WENG Yanxiang(Hangzhou Advance Gearbox Group Co., Ltd.,Hangzhou 311203,Chin)

机构地区：[1]杭州前进齿轮箱集团股份有限公司,杭州311203

出　　处：《机械工程师》2018年第6期148-151,156,共5页Mechanical Engineer

摘　　要：针对某电动车差减齿轮传动振动大、噪声高等关键问题,建立差减齿轮传动系统动态啮合分析模型,对额定工况与最大转矩工况齿轮副啮合特性进行分析计算,研究了轴向重合度对系统动态响应的影响规律,提出传动系统宏观参数优化方案。研究结果表明,随着轴向重合度的增加,各工况下差减速器关键轴承高速级左右轴承处结构噪声呈现波浪式递减趋势,且在轴向重合度为整数1、2时,系统结构噪声处于波谷位置;差减齿轮传动系统的优化方案使得高速级轴承各方向振动加速度均有所降低,各轴承位置结构噪声降低明显。In order to solve the key problems of high vibration and low noise in the gear reduction of an electric vehicle, a dynamic meshing analysis model of differential gear transmission system is established. The meshing characteristics of the gear pair under rated working condition and maximum torque condition are analyzed and calculated. The influence law of axial coincidence on the dynamic response of the system is studied, and the optimization scheme of the macro parameters of the transmission system is proposed. The results show that with the increase of the axial coincidence, the structural noise of the high-speed bearing in the differential retarder shows a wave-like decreasing trend under various working conditions, and the structural noise of the system is the lowest when the axial coincidence is 1 or 2. value. The optimized scheme of the differential gear transmission system reduces the vibration acceleration of high-speed bearings in all directions, and the structural noise of each bearing position is significantly reduced.

关 键 词：电动车 差减齿轮传动 宏观参数 优化 啮合特性 

分 类 号：TH132[机械工程—机械制造及自动化]