机械式变速器分离拨叉异响解决方案  

Solution to Abnormal Noise of Mechanical Transmission Separation Fork

作　　者：李艳红 Li Yanhong

机构地区：[1]格特拉克(江西)传动系统有限公司,江西省南昌市330013

出　　处：《时代汽车》2020年第20期125-126,共2页Auto Time

摘　　要：合理选择机械式手动变速器分离拨叉的材料、支撑销材料、表面处理工艺,以及优化设计拨叉与分离轴承的的相对滑移率等,可以有效的消除商用车踩离合器踏板时,分离拨叉发出的“吱吱”异响声。配合恰当的润滑脂,可以保护各运动副,避免干磨擦造成分离拨叉、支撑销磨损,不仅可以消除异响,还能提高分离系统的使用寿命。Reasonable selection of the material for the release fork of the mechanical manual transmission,support pin material,surface treatment,and optimized design of the relative slip rate of the fork and release bearing,etc.,can eff ectively eliminate the"creaking"noise from the shift fork when the commercial vehicles step on the clutch pedal.With proper lubricating grease,each movement pair can be protected to avoid wear of the separation fork and support pin caused by dry friction.At the same time,it can eliminate abnormal noise and increase the service life of the separation system.

关 键 词：变速器 离合器 分离拨叉 异响 滑移率 

分 类 号：U46[机械工程—车辆工程]