Online wear particle monitoring system adopting electric shock hammer adsorption and adjacent capacitance

A monitoring system and electric hammer technology, applied in the field of hydraulic system, can solve the problem of unsatisfactory sensor sensitivity, and achieve the effects of inhibiting bubble growth, excellent overall performance, and ensuring monitoring reliability.

Inactive Publication Date: 2016-08-24
SHAOXING UNIVERSITY
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Problems solved by technology

The distance between the excitation plate and the receiving plate of the capacitive sensor is limited by the diameter of t

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  • Online wear particle monitoring system adopting electric shock hammer adsorption and adjacent capacitance
  • Online wear particle monitoring system adopting electric shock hammer adsorption and adjacent capacitance
  • Online wear particle monitoring system adopting electric shock hammer adsorption and adjacent capacitance

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[0028] Please refer to the instruction manual figure 1 Attached Figure 7 As shown, the present invention is an online monitoring system for wear particles that uses electric hammer adsorption and adjacent capacitors. It consists of a temperature control module 1, a magnetization module 2, an adsorption module 5, an adjacent capacitor particle monitoring module 6, a demagnetization module 7, and ECU10 and other parts. Wherein, the temperature control module 1, the magnetization module 2, the adsorption module 5, the adjacent capacitor particle monitoring module 6 and the demagnetization module 7 are connected in sequence.

[0029] One end of the temperature control module 1 is provided with an oil inlet 8 for feeding hydraulic oil into a device, which is composed of a heater, a cooler and a temperature sensor. The main purpose of the temperature control module 1 is to provide an optimal magnetization temperature of about 42°C for the magnetization device. At the same time, temp...

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Abstract

The invention relates to an online wear particle monitoring system adopting electric shock hammer adsorption and adjacent capacitance. The system comprises a temperature control module, a magnetization module, an absorption module, an adjacent capacitance particle monitoring module and a demagnetization module which are sequentially connected, wherein a liquid oil inlet is formed in one end of the temperature control module; the absorption module is specifically a homopolar adjacency type absorption ring provided with an electric shock hammer. The online wear particle monitoring system introduces an adjacent capacitance transducer technology based on a capacitance edge effect, thus realizing non-intrusive and unconstrained monitoring for wear particles; the wear particles in liquid oil are magnetized by the magnetization module and are absorbed by the absorption module, so that the intensities of monitoring signals output by an adjacent capacitance transducer are improved; by arranging the temperature control module and reasonably designing an adjacent capacitance transducer polar plate layer structure, noise suppression is realized and the whole performance of an adjacent capacitance transducer monitoring device is optimized.

Description

【Technical field】 [0001] The invention relates to an online monitoring system for wear particles in hydraulic pipeline oil, in particular to an online monitoring system for wear particles using 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 Authori...

Claims

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Application Information

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IPC IPC(8): G01N15/00
CPCG01N15/00G01N2015/0019
Inventor 张华芳
Owner SHAOXING UNIVERSITY
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