Gearbox test bed based on multi-information fusion and detection method thereof

Abstract

The invention provides a gearbox test bed based on multi-information fusion and a detection method thereof; the gearbox test bed comprises a test bed pedestal; a gearbox mounting base is arranged on the test bed pedestal; a to-be-tested gearbox is installed on the gearbox mounting base; an input shaft at the left side of the to-be-tested gearbox is connected with an output shaft of a first torque and rotating speed sensor by means of a first universal coupling; the input end of the first torque and rotating speed sensor is connected with an output shaft of a servo motor by means of a first coupling; an output shaft at the right side of the to-be-tested gearbox is connected with an input end of a second torque and rotating speed sensor by means of a second universal coupling; the output end of the second torque and rotating speed sensor is connected with the load by means of a second coupling; the to-be-tested gearbox is respectively connected with a vibration signal detection module, a temperature detection module and an oil liquid information detection module; the vibration signal detection module, the temperature detection module and the oil liquid information detection module are respectively connected with a controller module; and the controller module is connected with the load.

Description

technical field [0001] The invention relates to the technical field of transmission detection, and more specifically relates to a transmission test bench based on multi-information fusion and a detection method thereof. Background technique [0002] The gearbox is the main transmission component of various vehicles such as construction machinery, and is responsible for the important mission of transmitting power from the engine to the wheels. The gearbox has the advantages of fixed transmission ratio, large transmission torque and compact structure, making it one of the key transmission components of the vehicle. Its operability, transmission and safety directly affect the overall performance of the vehicle. Therefore, the detection of the gearbox is very important. [0003] The methods currently used in transmission testing mainly include temperature method, oil sample analysis method and vibration method. The temperature method is to judge whether the gearbox is working ...

AI Technical Summary

Problems solved by technology

For example, when the vibration acceleration signal is used to diagnose the state of the bearing, the vibration acceleration signal is often transmitted through strong interference and nonlinearity, and the useful information is often submerged in other frequency components and measurement noise, and because the signal type is single, it can provide less information, making it difficult to make an accurate assessment

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