Intelligent bearings Bearings with built-in sensors for measuring temperature and pressure have been around for quite some time. However, they are limited to trials on a few trucks, mainly due to the cost of fixed side-by-side fault detection devices over airborne testers. Province, good efficiency. However, this situation can be changed when the railway company's ECP braking technology is standardized. No one has been able to do this so far, and there is an economic problem here.
Continue to improve the fixed detection device, so that you get an intelligent detection network, and its cost-effectiveness is much higher, then is it more meaningful to develop an on-board detection device? Another point is that if you adopt Better inspection standards and good working methods, then you do not necessarily need this type of fault detection. This is also a compromise to some extent. "The positive and negative views of standardization do not have any objection to the benefits of component standardization, but in some cases, standardization limits technological innovation, which is especially true for rolling bearings. Pushing a new technology to this The industry is very difficult. The speed of the work in the railway industry has not kept pace with the bearing suppliers. The AAR specification for rolling bearings is still based on manufacturing rather than performance. It hinders the integration of new products.
We have been working on new specifications for seven years, but we have not implemented them yet. In addition to security, AAR also considers standardization. Standardization itself is good, but it also has its drawbacks. For example, whenever you try to introduce new bearing technology or revise overhaul standards, the process is very difficult. It took us a few years for Timken to get the short bearings approved, and the railroad companies didn't buy a lot because they didn't want to stock some different parts from the previous repairs. Many private car owners also often complain because they are usually the first to adopt new technologies. However, when their car went to the repair company of the railway company for repairs, it did not always encourage the railway company to adopt new technology to replace the original technology.
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