Device for lubrication of open friction units

Abstract

The article considers the problem of increased wear of the wheel-rail pair. An effective solution to this problem is the use of technical means of lubrication, which ensure a reduction in the wear rate of the crests of rolling stock wheels. Based on the survey of modern foreign and domestic lubrication devices and technologies, the main types of flange lubrication systems are identified: onboard (on rolling stock), track stationary, mobile rail-lubricators. The main shortcomings of the existing lubrication systems have been identified: the complexity of the construction of flange lubrication systems, the accuracy of lubricant application on the wheel flange, the lack of control over the serviceability of equipment (onboard and stationary combs), the lack of free paths in the graph for skipping mobile rail-lubricators, especially on single-track line considering the low speed of their operation. These drawbacks lead to the conclusion that at present there are no lubrication technologies that fully meet the conditions of the wheel-rail pair operation. A developed device is proposed that allows accurately applying a lubricant in the form of a solid lubricating element to the wheel flanges of the rolling stock and to provide an automated supply of lubricant in the temperature range of the operation of the rolling stock flanges. Authors described the mechanism of operation of the proposed device for lubricating the wheel flange, which ensures the flow of solid lubricant to the interacting surfaces.