Device and method for non-contact type measurement of large-deflection rotating shaft run-out

Abstract

The invention discloses a device for non-contact type measurement of large-deflection rotating shaft run-out, and the device is characterized in that the device comprises a display instrument which is connected with a data collector through a data line, the data collector is connected with a proximitor through a two-core electric wire, the proximitor is connected with an eddy current transducer through an extension cable, the eddy current transducer is fixed in a support frame, and the proximitor is connected with a power supply through a two-core electric wire. The device provided by the invention is simple in structure, is flexible and is convenient to operate, and is applicable to rotating shafts of different sizes. The device overcomes the limitation of contact measurement of rotating shaft run-out in enterprises at present, utilizes an eddy current sensing technology, avoids instrument wear and dimensional precision influence brought by hard contact measurement, reduces measuring errors, and can realize high-rotating-speed measurement; and delivery calibration and adjustment of rotating shafts will be directly completed at hypervelocity in the future, the last step of putting the rotating shafts on a lathe is omitted, and the way of thinking is expanded in the aspect of optimization of structural design of the rotating shafts.

Description

technical field [0001] The invention relates to a non-contact measuring device and method for the runout of a large-deflection rotating shaft, which belongs to the field of industrial production. Background technique [0002] With the development of science and technology, the production and manufacture of generators has become one of the most concerned issues in industrial production. In the production of turbogenerators, the rotating shaft is a key component, and the outer diameter and end surface runout of the rotating shaft are important indicators to measure the quality of its turning. At present, during the machining process of rotary shaft turning, the circular runout of the outer diameter of the journal and the runout of the end face are usually measured on the machine tool with mechanical dial indicators and dial indicators. This contact measurement method is affected by the contact force of the measuring instrument. The contact surface between the workpiece and th...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a safe, flexible and accurate non-contact measuring device and method for large-deflection rotating shaft run-out, which solves the problem that the measuring instrument for rigid contact measurement is easily damaged, has measurement errors, and Problems with being unsuitable for measurements at high rotational speeds

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