Worn particle monitoring system using temperature control, electric shock hammer adsorption and adjacent capacitance

Abstract

The invention relates to a worn particle monitoring system using temperature control, electric shock hammer adsorption and adjacent capacitance. A temperature control module, a magnetizing module, a mechanical centrifugal module, an adsorption module, an adjacent capacitance particle monitoring module and a demagnetizing module of the worn particle monitoring system using the temperature control, electric shock hammer adsorption and adjacent capacitance are connected in sequence; an oil inlet is formed in one end of the temperature control module; the adsorption module is a homopolar adjacent type adsorption ring with an electric shock hammer specifically. According to the worn particle monitoring system using temperature control, electric shock hammer adsorption and adjacent capacitance, a capacitance edge effect-based adjacent capacitance sensor technology is introduced, and non-intrusive and unrestraint monitoring of worn particles is realized; the worn particles in oil is magnetized and aggregated into large particles through magnetizing and mechanical centrifuging, and the large particles move near a pipe wall and are adsorbed by the adsorption module, so that the output monitoring signal intensity of an adjacent capacitance sensor is improved; noises are restrained and the overall performance of the adjacent capacitance sensor monitoring device is optimized through the temperature control module and by reasonably designing an adjacent capacitance sensor polar plate layer structure.

Description

【Technical field】 [0001] The invention relates to an online monitoring system for wear particles in hydraulic pipeline oil, in particular to a wear particle monitoring system using temperature control, electric hammer 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 Invention Patent...

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.

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