Intelligent control system and method of rim lubricating device

Abstract

The invention provides an intelligent control system and method of a rim lubricating device. The method comprises the following steps of: (1) detecting frequency and amplitude of axial acceleration of a motor vehicle, and respectively comparing the frequency and the amplitude with a preset axial frequency threshold and an axial amplitude threshold; (2) determining the running condition of the motor vehicle and determining the work threshold of corresponding axial impact or rim friction work according to the comparison result in the step (1); (3) detecting the axial impact or rim friction workof the motor vehicle in a unit time, overlapping the work to obtain a value, comparing the value with the work threshold determined in the step (2); and (4) determining to supply a lubricant if the obtained value in the step (3) is more than or equal to the work threshold, or else, not supplying the lubricant. The intelligent control system can acquire real-time data through a built-in sensor andcan automatically judge the running state of the present motor vehicle according to the wave form and spectrum analysis of the running data, thereby using the running state as the evidence of supplying the lubricant.

Description

technical field [0001] The invention belongs to the field of locomotives, and in particular relates to a control system and a control method of a locomotive wheel rim lubricating device. Background technique [0002] During the operation of the locomotive, due to reasons such as cornering or serpentine swing, severe friction and wear will occur between the wheel rim and the rail gauge angle. Appropriate lubricating wheel flanges and gauge angles can not only prolong the service life of wheels and rails, but also reduce the derailment coefficient and have a certain energy-saving effect. The working principle of the widely used fluid rim lubricating device is to mix a certain amount of lubricant (grease or lubricating oil) with high-pressure gas at an appropriate interval (distance or time) and spray it on the rim of the locomotive, so as to achieve the purpose of lubrication . [0003] During the running of the locomotive, the wear between the wheel rim and the rail will co...

AI Technical Summary

Problems solved by technology

Passenger and freight are mixed on most lines in my country. Passenger cars are fast and trucks are slow. Therefore, the superelevation setting of the outer rail needs to comprehensively consider the speed of passenger cars and trucks. In the case of super height, the outer rail of the passenger car is worn and the inner rail of the truck is worn

It may also happen that the passenger car is not worn, and the inner rail of the truck is worn, etc.

Therefore, the simple "identification of the line" cannot distinguish the actual state of the wear and tear of the rim of the specific locomotive, which has certain limitations

[0008] 2) The control parameters of the "identification line" need to be set by the user. On the one hand, the user needs to have long-term comprehensive experience, and on the other hand, it needs to make feedback corrections based on the locomotive rim wear data. The rim wear data statistics cycle is counted in months. It takes a long period from statistical data, formulation of plans to implementation of parameter modification

Therefore, the consistency of other operating conditions cannot be guaranteed after the grease injection parameters are modified, which is not conducive to timely and accurate problem solving

[0009] 3) The wear of the locomotive rim is random, and the control mode of spraying grease at intervals according to time or distance, even if the interval parameters are accurate and effective, will inevitably cause excessive and insufficient lubricant in some sections

[0010] Therefore, the control system of "identifying the line" can only be maintained at a "roughly correct" level, and cannot perform accurate wheel flange lubrication according to the actual operating conditions of the locomotive, shortening the service life of the wheel flange

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