Abrasion particle monitoring method using temperature control, electronic control ring adsorption and adjacent capacitance

Abstract

The invention relates to an abrasion particle monitoring method using temperature control, electronic control ring adsorption and adjacent capacitance. According to the abrasion particle monitoring method, online monitoring of abrasion particles is conducted through a temperature control module, a magnetization module, a mechanical centrifugal module, an adsorption module, an adjacent capacitance particle monitoring module and a demagnetization module in sequence. The adsorption module is particularly a homopolar adjacent type adsorption ring. According to the abrasion particle monitoring method, the adjacent capacitance sensor technology based on the capacitance fringe effect is introduced, and non-invasion and unrestraint monitoring of the abrasion particles is achieved; the abrasion particles in oil are magnetized and gathered into large particles through magnetizing and mechanical centrifuging and move to the portion nearby a pipe wall to be adsorbed by the adsorption module, and therefore the output monitoring signal intensity of an adjacent capacitance sensor can be improved; and by arranging the temperature control module and reasonably designing the pole plate layer structure of the adjacent capacitance sensor, noise is restrained and the overall performance of an adjacent capacitance sensor monitoring device is optimized.

Description

【Technical field】 [0001] The invention relates to an online monitoring method for wear particles in hydraulic pipeline oil, in particular to a method for monitoring wear particles using temperature control, electric control ring adsorption and adjacent capacitors, and belongs to the technical field of hydraulic systems. 【Background technique】 [0002] The wear particles in the hydraulic system oil can not only cause abrasive wear of the kinematic pair, but also hinder the relative movement of the kinematic pair, resulting in malfunction of the control components. Statistics at home and abroad show that 70% of hydraulic machinery failures come from particle pollution of oil. Therefore, on-line monitoring of wear particles in oil has become one of the important ways to reduce wear and hydraulic system failures. [0003] Capacitive sensors are used in the pollution monitoring of machine oil because of their convenient fabrication and low cost. Patent Document 1 (Chinese Inven...

AI Technical Summary

Problems solved by technology

The distance between the excitation plate and the receiving plate of the capacitive sensor is limited by the diameter of the hydraulic pipe. Due to the relatively large diameter of the hydraulic pipe, the sensitivity of the sensor is not ideal.

Images