Method and device for predicting remaining life of sealing ring, construction machine and server

Abstract

The embodiment of the invention provides a method and device for predicting the residual service life of a sealing ring, an engineering machine and a server, and belongs to the field of hydraulic pressure. One aspect of the method includes collecting data related to an oil cylinder, wherein the data comprises the pressure in the working process of the oil cylinder, the temperature of the oil liquid in the oil cylinder and the displacement of the piston motion corresponding to the oil cylinder, the pressure is the pressure of a rod cavity or the pressure of a rodless cavity; determining the characteristic value according to the data; determining the residual service life of the sealing ring according to the characteristic value. Another aspect of the method includes receiving the characteristic value and analyzing the characteristic value to determine the residual service life of the sealing ring. The device comprises an acquisition module and a processing module. The server comprises acommunication module and an analysis module. Therefore, the residual service life of the sealing ring of the oil cylinder is predicted.

Description

technical field [0001] The invention relates to the field of hydraulics, in particular to a method and device for predicting the remaining life of a sealing ring, construction machinery and a server. Background technique [0002] At present, there are various technologies for diagnosing the failure of hydraulic cylinders of construction machinery. figure 1 A fault diagnosis of construction machinery hydraulic cylinder and a fault sample signal acquisition method applicable to it are shown. like figure 1 As shown, the construction machinery hydraulic cylinder fault diagnosis system includes 4 modules, namely feature parameter extraction module 2, database module 3, human-computer interaction module 4 and classifier module 1. Among them, the feature parameter extraction module 2 is used to extract fault feature parameters and check the similarity, the database module 3 is used to store sample data and temporary data, the human-computer interaction module 4 is used to complet...

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Problems solved by technology

figure 1 shown content and figure 2 The contents shown are all for diagnosing oil cylinder leakage faults. Diagnosing oil cylinder leakage faults is an after-the-fact diagnosis, that is, only after the oil cylinder leaks, can the data sensed by the sensor determine the existence of a fault in the oil cylinder, and the remaining life of the oil cylinder sealing ring cannot be predicted

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