Hydraulic motor detection system and method

Abstract

The invention discloses a hydraulic motor detection system which is applied to quality inspection of a hydraulic motor before delivery. The hydraulic motor detection system comprises a sensor for testing parameters of the hydraulic motor and a judgment device connected with the sensor and used for receiving parameter data of the hydraulic motor, wherein an unsupervised learning model and a classification model are arranged in the judgment device; and the unsupervised learning model is used for establishing a normal parameter interval according to the parameter data and screening out abnormal parameter data which are not in the normal interval in the parameter data, and the classification model is used for diagnosing the abnormal parameter data and comparing whether the abnormal parameter data conform to fault features or not. The invention further discloses a hydraulic motor detection method which is applied to quality inspection of the hydraulic motor before delivery. The hydraulic motor detection method comprises the following steps: step S1, acquiring the testing parameter data of the hydraulic motor; step S2, establishing the unsupervised learning model and the classification model according to the parameter data; step S3, inputting the parameter data into the established unsupervised learning model and the classification model; and step S4, outputting a corresponding fault type by the classification model.

Description

technical field [0001] The invention relates to the technical field of hydraulic motor equipment, in particular to a hydraulic motor detection system and method. Background technique [0002] The hydraulic motor is an actuator of the hydraulic system, which converts the hydraulic pressure energy provided by the hydraulic pump into the mechanical energy of its output shaft. In order to ensure product quality, hydraulic motors need to go through a series of factory tests before leaving the factory, including mandatory items, such as displacement test, volumetric efficiency test, variable characteristic test, and external leakage test. And sampling items, such as total efficiency test, impact test, overload test. After the product goes offline, 100% of the items must be tested. After random sampling or systematic sampling, a small part of the items will be tested. [0003] However, for the above-mentioned test items, all qualified judgments depend on the design, production, a...

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Problems solved by technology

[0003] However, for the above-mentioned test items, all qualified judgments depend on design, production, and use experience, and are greatly affected by the operation of test workers in the actual operation process.

When a problematic product occurs, part of the motor needs to be disassembled to confirm the problem, and the relevant technical and production personnel will track the cause of the problem, increasing man-hours and labor costs

As a result, the total test cost of the motor has accounted for more than 30% of the total cost of the motor

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