水下低速密封旋转副阻力矩分析

Analysis of Resisting Moment of Underwater Low-speed Sealed Rotating Pair

低速密封旋转副应用于水下时,其旋转阻力矩会随着水压的增大而增大。对水下低速密封旋转副的阻力矩进行分析,阻力矩的主要成分是由轴承与密封圈产生的摩擦阻力矩。在分析中,推导阻力矩的计算公式,通过试验测得阻力矩,并确定密封圈的摩擦因数,进而得到阻力矩压力曲线。计算结果与试验结果基本吻合,由此验证计算公式的有效性和正确性,能够为密封旋转副的设计提供参考。

When the low-speed sealed rotating pair is applied underwater, its rotational resistance moment will increase with the increase of water pressure.The resisting moment of the underwater low-speed sealed rotating pair was analyzed.The main components of the resisting moment are the frictional frictional resistance moments produced by the bearing and the sealing ring.In the analysis, the calculation formula of the resisting moment was derived.The resisting moment was measured through the test, and the friction factor of the sealing ring was determined, and then the resisting moment-pressure curve was obtained.The calculation result is basically consistent with the test result, which may verify the validity and correctness of the calculation formula and can provide a reference for the design of the sealed rotating pair.