论文部分内容阅读
用便携式电子振动脉冲测试仪测量货车滚柱轴承的这项技术,已在印度铁路货车中得到了发展。印度铁路大约每个月要测量2000个货车滚柱轴承。经过测试仪检查的轴承约有6％不合格,进一步细查证实其中95％潜伏着危险,需要更换。在一年期间,振动脉冲测试仪检查出1500个有缺陷的轴承需要更换,减少了会造成上百万卢比损失的断轴大事故。印度铁路部门分析了造成滚柱轴承损坏的基本原因有三个方面:端盖松动、缺少润滑脂和碰伤。从70000个滚柱轴承已整整使用了20年的事实来看,需要更换的时间可以相应地延长,但是,当到了轮对使用期满可
This technology for measuring truck roller bearings with a portable vibro-impulse tester has been developed in Indian rail cars. The Indian Railways measures about 2000 truck roller bearings every month. After testing the tester about 6% failed bearings, further scrutiny confirmed 95% of them potentially dangerous, need to be replaced. During one year, the Vibration Tester checks out that 1,500 defective bearings need to be replaced, reducing the need for a major shaft breaking accident, which can cost millions of rupees. India’s railway department has analyzed the causes of roller bearing damage for three reasons: loose end caps, lack of grease and bumps. From the fact that the 70,000 roller bearings have been fully used for 20 years, the time required for replacement can be extended accordingly. However, when the wheelset is available