High-precision rotating shaft fault detection and positioning device

Abstract

The invention belongs to the technical field of high-speed precise rotating shaft detection equipment, and particularly relates to a high-precision rotating shaft fault detection and positioning device. The high-precision rotating shaft fault detection and positioning device comprises a shaft sleeve, sound production modules, a labVIEW sound collection and analysis system and a controller; the shaft sleeve sleeves a rotating shaft needing to be measured; at least two first blind holes are formed in the outer side of the shaft sleeve; the first blind holes are uniformly distributed in the circumferential direction of the shaft sleeve; the sound production modules are located in the first blind holes; the sound production modules slide along the inner walls of the first blind holes; and eachsound production module comprises a first sliding block, a sound production piece and a first spring. An upper shaft sleeve and a lower shaft sleeve can be separated, so that the rotating shaft can be measured under the condition that the rotating shaft of a machine is not detached; the sound production pieces are arranged on the shaft sleeve, and sounds of the sound production pieces are analyzed through the labVIEW sound collection and analysis system, so that a fault of the rotating shaft can be indirectly detected; and during detection, the labVIEW sound collection and analysis system does not need to be in contact with the rotating shaft.

Description

technical field [0001] The invention belongs to the technical field of high-speed precision rotating shaft detection equipment, in particular to a high-precision rotating shaft fault detection and positioning device. Background technique [0002] Precise testing equipment requires that the testing equipment have good stability when the equipment is running. In the high-speed rotating environment, the requirements for stability are higher, and the method to ensure the stability is mainly reflected in the verticality of the rotating shaft relative to the bottom plate and the rotating shaft after it is fixed. Concentricity with the motor shaft. [0003] The most traditional method is to simply install the rotating shaft and the bearing. If two radial bearings or one radial bearing and one thrust bearing are installed adjacent to each other, this method cannot well ensure the verticality and concentricity of the rotating shaft during operation. degrees, resulting in axis tilt o...

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Problems solved by technology

[0005] This technical solution overcomes the problems in the prior art that the fixing and limiting effect of the rotating shaft and the bearing is not good, and the vibration is strong, but this solution cannot measure the rotating shaft without disassembling the rotating shaft of the machine, and cannot measure the rotating shaft by The sounding piece is installed on the sleeve, the sound of the sounding piece cannot be analyzed through the labVIEW sound collection and analysis system, and the failure of the rotating shaft cannot be detected indirectly. The detection device must be in contact with the rotating shaft during detection, so there are still many defects in this technical solution

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