密封圈对轮毂轴承阻力的影响分析与试验探究稿

针对某前置前驱车型轮毂轴承的阻力较大,笔者在理论分析的基础上,通过ABFT-1轮毂轴承摩擦力矩试验机对该车型轮毂轴承进行试验探究。试验对比了轮毂轴承单元在三种不同密封状态下的摩擦力矩变化趋势,得出内侧密封圈对轮毂摩擦力矩的影响较外侧密封圈大约36.5%,且随着转速的增大,摩擦力矩有增大的趋势。基于试验结果,对密封圈进行优化后,在摩擦力矩试验机以及整车上进行了验证,结果表明:优化后的轮毂摩擦力矩较原来降低了0.18Nm,整车油耗降低了0.03L/百公里,滑行距离增加了57.5m。

The Impact and Experimental Analysis About Resistance of Hub Bearing Seal

Due to the large resistance of Front engine front drive Hub Bearings,Based on the theoretical analysis,the author Conducted a test about friction torque with the ABFT-1 wheel bearing testing machine.The test compared the trends of fiction torque under three different sealing conditions.It is concluded that the influence of the inner seal on the frictional torque of the hub is about 36.5%greater than the outer seal,and the friction torque increased with the rotational speed go up.Based on the test results,after the seal was optimized,and verified on the friction torque testing machine and vehicle.The result shows:after optimization,the friction torque of the hub bearing was reduced 0.18Nm,the fuel consumption of the whole vehicle was reduced 0.03L/100km and the sliding distance was increased by 57.5m.