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Hydraulic motor online operation health monitoring method and system

A technology of health monitoring system and hydraulic motor, which is applied in linear/angular velocity measurement, electrical measurement, measurement device, etc., can solve the problems of high pressure in oil return line, increased internal leakage, and impact damage of oil return line valve.

Pending Publication Date: 2022-05-13
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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Problems solved by technology

[0002] During the use of hydraulic motors, hydraulic motors often encounter increased internal leakage caused by cavitation and mechanical wear, reduced efficiency, and even generate strong mechanical vibration noise. In severe cases, the high and low pressure chambers of the hydraulic motor are connected, making the return The oil pipeline pressure is too high and the oil return pipeline valve and other accessories are damaged by impact

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  • Hydraulic motor online operation health monitoring method and system

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Embodiment Construction

[0030] In order to make the objectives, technical solutions and advantages of the implementation of the application clearer, the technical solutions in the implementation modes of the application will be described in more detail below with reference to the drawings in the implementation modes of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the present application. The embodiments described below by referring to the figures are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application. Embodiments of the pr...

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Abstract

The invention belongs to the technical field of hydraulic motor monitoring, and particularly relates to a hydraulic motor online operation health monitoring method and system. The method comprises the steps that S1, the rotating speed and vibration noise of a hydraulic motor are obtained; s2, performing Fourier transform on the vibration noise to form a frequency domain signal; s3, determining a frequency domain standard pre-stored in a database according to the rotating speed of the hydraulic motor; and S4, whether the hydraulic motor breaks down or not is determined according to changes of the frequency domain signal and the frequency domain standard. Abnormal phenomena in operation of the hydraulic motor can be found in time, and equipment operation and maintenance personnel are reminded to overhaul in time.

Description

technical field [0001] The application belongs to the technical field of hydraulic motor monitoring, and in particular relates to a method and system for online health monitoring of hydraulic motors. Background technique [0002] During the use of hydraulic motors, hydraulic motors often encounter increased internal leakage caused by cavitation and mechanical wear, reduced efficiency, and even strong mechanical vibration noise. In severe cases, the high and low pressure chambers of the hydraulic motor are connected, making the return The oil pipeline pressure is too high and the oil return pipeline valve and other accessories are damaged by impact. Therefore, how to monitor the health of hydraulic motors and prevent possible damage to personnel and objects has become a key issue to continue to solve. Contents of the invention [0003] In order to solve the above technical problems, this application provides a general and effective hydraulic motor health monitoring managem...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34G01P3/00G01H17/00
CPCG01R31/343G01P3/00G01H17/00
Inventor 张冬冬李秋萍赵平安
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA