1. College of Mechanical Engineering, Tianjin University of Science & Technology, Tianjin 300222, China; 2. Key Laboratory of Integrated Design and on Line Monitoring of Light Industry and Food Engineering Machinery and Equipment in Tianjin, Tianjin 300222, China
Abstract：Based on the pumping mechanism of rotating shaft seals, considering the influence of triangular texture direction on the sealing lip surface, a numerical model of oil seal sealing area was established. The model coupled the energy conservation equation for temperature solution. By solving the numerical equation iteratively, the pump suction rate, oil film thickness, friction torque, lip sealing pressure, lip average temperature and lip opening were obtained when the lip surface triangle texture was rotated in different directions(with the center of gravity of the triangle as the rotation center, and rotated to the right at 0 degree, 45 degree, 90 degree, 135 degree, 180 degree, 225 degree, 270 degree, 315 degree, respectively). The results show that the pump suction rate is the most affected by the direction of triangular texture, and the difference is 0.783 6 mL/h. The variation of other sealing performance parameters is smaller. In surface texture design, the influence of triangular texture direction on pump suction rate should be given priority. Considering all the sealing performance parameters, when the triangle texture direction is 135 degrees, the pump suction rate, friction torque, average lip temperature and maximum lip temperature of the oil seal are all better, the sealing performance is the best among eight groups of oil seals with different texture directions.
张付英,杨俊梅*,水浩澈,董城城,. 密封唇部微观纹理方向对油封密封性能的影响[J]. 排灌机械工程学报, 2021, (1): 56-60.
ZHANG Fuying,YANG Junmei*,SHUI Haoche,DONG Chengcheng,. Influence of micro-texture direction of seal lip on sealing performance of oil seal. Journal of Drainage and Irrigation Machinery Engin, 2021, (1): 56-60.
