轮毂轴承单体密封试验中管道泥浆沉积量实验研究

Experimental study on pipe slurry deposition in single bearing seal test of hub bearing

针对轮毂轴承单体密封试验环境中泥浆配比的准确性问题,对轮毂轴承单体密封试验机泥浆输入管道内泥浆颗粒沉积量进行了实验研究。提出了试验机泥浆输送系统中泥浆输入管道内泥浆颗粒沉积量的测量方法,测量了试验机泥浆输送系统管道内的泥浆流量和不同流量下泥浆输入管道内的泥浆颗粒沉积量,通过拟合的方法得到了泥浆沉积量与流量之间的关系。研究结果表明:随着泥浆流量的增加,泥浆输入管道内的泥浆颗粒沉积量总体呈减少趋势,当泥浆流量达到一定量时,减小的趋势变缓;确保轮毂轴承单体密封试验泥浆配比准确性的试验机最小泥浆流量为425.8 ml/s。

Aiming at the accuracy of the slurry ratio in the single-sealed test environment of the hub bearing, the experimental research on the slurry particle deposition amount in the slurry input pipe of the hub bearing single seal test machine was carried out.The measurement method of slurry particle deposition amount in the slurry input pipeline of the test machine slurry conveying system was proposed.The slurry flow in the pipeline of the test machine slurry conveying system and the slurry particle deposition amount in the slurry input pipeline under different flow rates were measured.The method obtained the relationship between the amount of slurry deposited and the flow rate.The results show that with the increase of slurry flow, the sediment concentration of slurry particles in the slurry input pipeline generally decreases.When the slurry flow reaches a certain amount, the decreasing trend becomes slower.Finally, the minimum slurry flow rate of the test machine with the accuracy of ensuring the matching ratio of the single bearing seal test mud of the hub bearing is 425.8 ml/s.