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文中介绍ZQ-1A3.6万转/分气流纺轴承的结构和使用情况。为减小高速时的离心力并运用摩擦学原理在轴承设计上作了一些改进。减小球径,增加球数,球径为3.175毫米,球数为9个;保持架采用酚醛夹布胶木;预加负荷采用齿式蹀形弹簧;改进密封设计。认加工方面,采用粗、精超精研提高零件表面质量;采用超声波清洗和净化装配。经过两年的实践,产品上机筛去率由原来的25%下降到1%,运转3600小时的失效率由32.7%下降到2%,大大提高了纺杯轴承的寿命和可靠性。附图4幅,表2个。
The article describes the structure and use of ZQ-1A36000 rev / min airflow spinning bearings. In order to reduce the centrifugal force at high speed and the use of tribology principles in the bearing design made some improvements. Reduce the ball diameter, increase the number of balls, the ball diameter of 3.175 mm, the ball number of 9; cage using bakelite phenolic cloth; preload plus gear type spring; improve seal design. Recognizing the processing, the use of rough, refined ultra-precision parts to improve the surface quality; the use of ultrasonic cleaning and purification assembly. After two years of practice, the product on the screen to go rate from 25% to 1%, 3600 hours of failure rate from 32.7% to 2%, greatly improving the life and reliability of the spinning cup bearings. Figure 4, Table 2.