A Radial Integrated Measuring Method of Rotor Axial Displacement, Rotational Speed ​​and Inclination Angle

Abstract

The invention relates to a rotor axial displacement, rotating speed and inclination angle radial integrated measurement method. A standard measurement bar code is fixed outside a measured rotor, the standard measurement bar code is a bar code which is prepared by two materials having different reflectivities and has special rules, the measured rotor is provided with a photoelectric sensor in a radial direction, the photoelectric sensor points to a center of the standard measurement bar code, a plane of the sensor center is taken as a reference plane, and axial displacement, a rotating speed and an inclination angle of rotor relative to the reference plane are measured and calculated. The method is advantaged in that axial displacement of a rotating shaft is measured through the standard measurement bar code fixed outside the to-be-measured rotor and the photoelectric sensor arranged in the radial direction, not only can axial displacement of the rotating shaft, the rotating speed and an inclination state be measured on the condition that axial length does not increase, but also mounting is convenient, processing and reconstructing the to-be-measured shaft are not required, and applicability is substantially improved.

Description

Technical field [0001] The invention relates to the technical field of sensor technology and gap or displacement measurement, in particular to a radial integrated measurement method of rotor axial displacement, rotation speed and tilt angle. Background technique [0002] Rotating machinery is developing in the direction of high speed and high precision, and the requirements for monitoring the running state of the rotor are constantly increasing. The axial displacement of the rotor is one of the key indicators that reflect the operating status of the rotor and the entire mechanical system: the axial displacement of the spindle of the machine tool is related to the accuracy of processing; the electromagnetic bearing rotor needs to be controlled by measuring the axial displacement information of the rotor, otherwise it will Cause the rotor to be unable to balance, and even cause more serious consequences. [0003] When measuring the axial displacement of a high-speed rotor, non-conta...

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Problems solved by technology

[0006] In order to overcome the above-mentioned defects in the prior art, the object of the present invention is to provide a radially integrated measurement method for axial displacement, rotational speed and inclination angle of the rotor, which can solve the measurement of axial displacement under the condition that the axial space of the rotor is limited At the same time, it can solve the problems of poor anti-interference ability of eddy current sensors, sensitivity to materials, complex installation structure and inconvenient use in the existing axial displacement radial measurement method

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