Rolling bearing fault detection device

Abstract

The invention discloses a rolling bearing fault detection device, which comprises an engine base and a host machine fixed on the engine base, wherein the host machine comprises a main shaft system, an expanding-sleeve elastic chuck component, a loading component and a lifting platform; the expanding-sleeve elastic chuck component is arranged at one end of a main shaft of the main shaft system; the loading component is fixed just below the expanding-sleeve elastic chuck component and is contacted with a bearing; the lifting platform is arranged at one side of the engine base; and when the bearing is loaded, the bearing is driven to move up, and the bearing is loaded to the expanding-sleeve elastic chuck component. With the adoption of the rolling bearing fault detection device, the detection accuracy can be improved, the specification range of the detected rolling bearing is increased, and the automatic diagnosis of the bearing is realized.

Description

technical field [0001] The invention relates to a fault detection device, especially a rolling bearing fault detection device, which is mainly used for bearing detection of domestic railway locomotives, vehicles, motor vehicles, high-speed rail, urban rail vehicles and non-railway industries, and can also be used for products of bearing manufacturers Quality Inspection. Background technique [0002] There are many types of testing and testing devices and equipment related to bearings, including a variety of hand-held bearing testers, speed-type vibrometers, acceleration vibrometers, etc., basically based on the relevant standards of the bearing industry, at a certain speed and test load Next, by measuring the speed, acceleration and displacement of the bearing vibration, the vibration value of the bearing in the corresponding frequency band is detected, and some are measured by temperature, and then compared with the relevant vibration standard and temperature standard to re...

AI Technical Summary

Problems solved by technology

[0004] 1) The accuracy of rolling bearing fault detection is not high;

[0005] 2) The range of rolling bearing specifications that can be detected by the testing machine is narrow, and generally only 1~3 bearing specifications can be detected;

[0006] 3) The fault location cannot be accurately determined, such as the qualitative and quantitative diagnosis of faults on the inner ring, outer ring, rolling surface of the roller, cage, roller end face, inner and outer ring ribs, and other sliding surfaces, as well as impurities contained in them;

[0008] Aiming at manual disassembly and visual inspection of large bearings of locomotives and vehicles, the workload is large, the cost is high, the accuracy rate is not high, and it is not easy to find non-surface hidden problems. The inventor has proposed a number of methods based on generalized resonance / resonance demodulation technology Related patents for rolling bearing fault detection for railway locomotives, vehicles and other industries, such as:

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