论文部分内容阅读
一前言工业发展和家用电器的普及,对轴承的振动噪音提出了更为严格的要求。影响轴承振动噪音的因素是多方面的,但主要的因素是钢球、套圈滚道和保持架。据《电机轴承振动及噪音的试验研究》(《轴承》1973年2期)一文分析,其影响程度约为8.4:3:1。根据盐城市轴承厂对860套轴承的测定,其影响程度分别约占68%,24%和8%,与上述数值基本相接近。此外,据生产中统计,滚道的磕碰伤可增加4～8db(振动分贝),清选不干净也会增加1～2db。上述情况是在零件合格的情况下测定的,在滚道质量低劣的情况下它所占的比例要比上述数值大得多。我国中小型轴承厂所占的比例颇大,不
A preface Industrial development and the popularity of household appliances, the vibration of the bearing made more stringent requirements. Factors that affect bearing vibration noise are many, but the main factors are steel balls, raceways and cages. According to “Motor Bearing Vibration and Noise Test Research” (“Bearing” 1973 2 period) an article analysis, the impact of about 8.4: 3: 1. Yancheng Bearing Factory according to the determination of 860 sets of bearings, the impact of about 68%, respectively, 24% and 8%, and the above values are basically close. In addition, according to the statistics of production, bump bump injury can increase 4 ~ 8db (vibration decibel), cleaning unclean will increase by 1 ~ 2db. The above situation is measured in the case of qualified parts, in the case of poor raceway quality it is much larger than the above ratio. Small and medium-sized bearing factory in China accounted for a large proportion, no