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Vibrating screen fault detection method for combine harvester

A technology of combine harvester and fault detection, applied in vibration testing, testing of machine/structural components, measuring devices, etc., can solve problems such as unsatisfactory characteristic parameters, nonlinearity, etc., to improve time, accuracy, and convenience. right effect

Inactive Publication Date: 2020-06-09
HENAN UNIV OF SCI & TECH
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Problems solved by technology

Due to the influence of uncertain factors in the working process of the combine harvester vibrating screen, the generated signals often have characteristics such as weakness, aliasing, and nonlinearity in the analysis process, making these traditional methods unable to obtain satisfactory characteristics of faults. parameters, so there is currently no good fault detection method for fast and accurate fault diagnosis of combine harvester vibrating screens in the case of uncertain information contained in a large amount of noise

Method used

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  • Vibrating screen fault detection method for combine harvester
  • Vibrating screen fault detection method for combine harvester
  • Vibrating screen fault detection method for combine harvester

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] refer to figure 1 , a method for fault diagnosis and detection of a combine harvester, comprising a vibration signal acquisition device S1, a vibration signal processing module S2, a vibration signal processing module S3 and a fault display device S4; the vibration signal acquisition device S1 includes a vibration sensor module S5, a controller S6 and wireless transmitter S7, the vibration signal acquisition device S1 is arranged at the screen frame CD of the vibrating screen, and is connected with the signal input port of the controller S6 for collecting vibration signals, and the wireless signal sending end of the controller S6 is connected There is a wireless transmitter S7, and the wireless signal sending end of the controller S6 is connected with the wireless transmitter S7 to send vibration signals; the vibration signal p...

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Abstract

The invention provides a vibration screen fault detection method for a combine harvester. The method comprises a vibration signal acquisition device and a vibration signal processing device, the vibration signal acquisition device is arranged at a screen frame of a vibration screen, and the vibration signal acquisition device comprises at least one vibration signal sensor, a controller and a wireless transmission device, the vibration signal processing device comprises a wireless transmission device, a data analysis device, a processor and a data storage device, and a fault display device comprises a liquid crystal display and an alarm indicator lamp. And the fault of the vibrating screen can be timely and accurately alarmed under complex conditions.

Description

technical field [0001] The invention relates to the field of combine harvesters, in particular to a fault detection method for a vibrating screen of a combine harvester. Background technique [0002] The combine harvester is a large and complex agricultural machinery, which occupies an extremely important position in the agricultural production of our country. Among them, the cleaning efficiency of the cleaning device is very important for the combine harvester, and the working efficiency of the vibrating screen in the cleaning device largely determines the cleaning efficiency of the combine harvester. When the combine harvester is working normally, the vibrating screen mechanism will also generate a large inertial force. This will excite the frame or other components, causing strong vibration and noise, which affects the working accuracy, reliability, life and cleaning efficiency of the harvester. Therefore, it is particularly important to carry out fault diagnosis resear...

Claims

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Application Information

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IPC IPC(8): G01M7/02
CPCG01M7/025
Inventor 徐立友张家铭赵思夏刘孟楠闫祥海魏俊陈小亮
Owner HENAN UNIV OF SCI & TECH
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