准双曲面齿轮研齿烧伤及抑制研究

发布时间：2017-12-28 17:18

本文关键词：准双曲面齿轮研齿烧伤及抑制研究　出处：《机械传动》2016年09期 　论文类型：期刊论文

【摘要】：汽车驱动桥准双曲面齿轮在研齿加工过程中经常出现齿面烧伤现象,这种缺陷将导致准双曲面齿轮在使用的过程中出现点蚀、剥落打齿等失效模式。本文提出的根据研齿烧伤部位的宏观特征辨别研齿烧伤的方法;从金相组织、硬度变化分析出齿面烧伤对齿轮寿命的影响,并进行了台架试验和道路试验验证。通过建立准双曲面齿轮啮合点相对滑动的数学模型,计算出各啮合部位的相对滑动速度,发现齿面烧伤部位正是相对滑动速度最大的部位。通过多轮研齿烧伤再现试验研究证明了零侧隙研齿是导致研齿烧伤的主要因素。结合生产实践经验,提出了研齿标准作业程序、研齿侧隙自动监控等抑制研齿烧伤方法。
[Abstract]:The phenomenon of burn on the tooth surface often occurs during the gear processing of the hypoid gear of the automobile driving axle, which will cause the failure mode of pitting, spalling and beating during the use of hypoid gears. Based on the macroscopic characteristics of burn sites, the method of tooth burn is identified. The influence of tooth surface burn on gear life is analyzed from metallographic structure and hardness change, and bench test and road test are carried out. By establishing the mathematical model of the relative sliding of the hypoid gear meshing point, the relative sliding speed of each engaging part is calculated, and it is found that the burning part of the tooth face is the location where the relative sliding speed is the largest. The reappearance test of multi wheel grind burn proves that the null backlash grind is the main factor that causes the burn of the teeth. Combined with the experience of production practice, the methods of restraining the burn of grind are put forward, such as the standard operation procedure of the teeth and the automatic monitoring of the backlash.
【作者单位】：中南大学机电工程学院;株洲齿轮有限责任公司;
【基金】：国家自然科学基金(51575533)
【分类号】：U466;TG61
【正文快照】： 0引言准双曲面齿轮由于其传动平稳、强度高而广泛应用于车辆、机床、直升飞机、矿山机械等机械产品[1]1-2。又因为其在安装时的空间布置和承载转矩强度等方面明显优于普通的圆弧锥齿轮[2]42-43,而被广泛应用于汽车后桥驱动,尤其是单级桥载重汽车。准双曲面齿轮常采用“五刀法

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