KZW系列传感阀防尘罩失效分析及工艺控制措施优化
Failure Analysis of KZW Series Dust Protectors for Sensor Valves and Optimization of Process Control Measures
张云 1宋艳林 1王魁 1龚加法 1喻泉1
作者信息
- 1. 中车长江车辆有限公司,湖北 武汉 430212
- 折叠
摘要
介绍了铁路货车KZW系列传感阀防尘罩在运用过程中出现位移、卡滞、丢失等故障,从产品结构和作用原理两个方面分析了故障产生的原因和危害性.通过故障模拟试验、拉脱力试验、振动试验及循环充排气试验分析得知,防尘罩与传感阀的连接可靠性受其配合过盈量、振动、活塞运动等因素的影响.据此提出防尘罩防脱工艺控制措施和结构优化建议.运用考验效果表明,通过控制防尘罩拉脱力范围和关键组装尺寸的方法能够有效防止防尘罩偏离安装位置.
Abstract
The article introduces the faults such as displacement,blockage and missing of the KZW series dust protectors for sensor valves of railway wagons in operation and analyzes the causes and hazards of the faults from the two aspects of product structure and working principle.It turns out from the analysis by fault simulation test,pull-out force test,vibration test and cyclic air charging and discharging test that the reliability of connection between the dust protector and the sensor valve is affected by the factors such as fit interference,vibration and piston movement.Accordingly,it gives the suggestions of optimizing the anti-drop process control measures and the structure of the dust protector.The operation test result shows that it's possible to effectively prevent the dust protector from deviating from its mounting position by controlling the range of its pull-out force and its key mounting dimensions.
关键词
KZW系列/防尘罩/失效分析/工艺控制措施Key words
KZW series/dust protector/failure analysis/process control measures引用本文复制引用
出版年
2024
NETL
NSTL
万方数据