Detection method and device for detecting abrasive dust, judgment method and device and engineering machinery

A detection method and a technology of a detection device, which are applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve the problems of missed detection, small wear debris that cannot be connected to the circuit, and the circuit cannot be connected, so as to reduce the probability of missed detection. The effect of improving reliability

Pending Publication Date: 2021-11-19
ZOOMLION HEAVY IND CO LTD
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  • Application Information

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Problems solved by technology

The detection method of connecting the circuit through the grinding debris will also fail to connect the circuit due to the small size of the grinding debris, or because the iron filings do not fall between the magnetic steel and the metal sheet during the adsorption process, resulting in the circuit being unable to connect, and thus missing detection.

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  • Detection method and device for detecting abrasive dust, judgment method and device and engineering machinery
  • Detection method and device for detecting abrasive dust, judgment method and device and engineering machinery
  • Detection method and device for detecting abrasive dust, judgment method and device and engineering machinery

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Embodiment Construction

[0050] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0051] During the operation of mechanical equipment, the wear of components will produce wear debris, which is deposited in the lubricating oil chamber of mechanical equipment. The embodiment of the present invention proposes a device and method for reflecting the health status of mechanical equipment by detecting changes in the content of wear debris and / or the size of wear debris in the oil, which can monitor the wear and vibration of the components during the operation of the mechanical equipment Carry out real-time monitoring and analysis, determine the health status of mechanical equipment, and effectively monitor and warn the health status of mechanical eq...

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Abstract

The invention relates to the field of engineering machinery and discloses a detection method and device for detecting abrasive dust, a judgment method and device and engineering machine.The detection method comprises steps that real-time current of a monitoring circuit is obtained, the monitoring circuit is connected with an abrasive dust adsorption module, the abrasive dust adsorption module is used for adsorbing abrasive dust existing in oil liquid, whenever the abrasive dust adsorption module adsorbs the abrasive dust, the real-time current changes; whether the real-time current changes or not is judged; and according to the judgment result, whether the abrasive dust exists in the oil liquid or not is judged. The method is advantaged in that the situation that the circuit cannot be connected due to the fact that the abrasive dust size is small or the abrasive dust falling point is not located between the circuit connecting points is avoided, probability of missing detection is reduced, and reliability is improved.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a detection method and device for detecting wear debris, a determination method and device, and construction machinery. Background technique [0002] The boom rotation mechanism is a hydraulic direct drive mechanism, which converts the translation of the piston in the mechanism into the axial rotation of the boom through hydraulic drive. Due to the long-term operation of the boom rotation mechanism under complex working conditions such as heavy loads, the continuous meshing between the gears leads to surface wear, especially when the rotation mechanism repeatedly starts and stops, shock vibration occurs, which aggravates the wear between the gears. Long-term wear and tear will make the gear fit gap in the mechanism larger, making it unable to move smoothly, and eventually causing the structure to be scrapped. [0003] How to detect the wear of the gear teeth during the use ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/00G01R31/00
CPCG01N27/00G01R31/00
Inventor 佘玲娟付玲马德福尹莉
Owner ZOOMLION HEAVY IND CO LTD
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