An axis measuring device and method

Abstract

The invention provides an axis measuring device and method, and relates to the technical field of generator set installation. The axis measuring device comprises a reference unit and a measuring unit,which are axially arranged at an interval. The reference unit includes a reference base, a first laser range finder and a digital telescope; the first laser range finder and the digital telescope aremounted on a first mounting shaft of the reference base; the first laser range finder is rotatable about the first mounting axis, and the laser light emitted by the first laser range finder is perpendicular to the axis of the reference base; and a collimation axis of the digital telescope coincides with the axis of the reference base. The measuring unit has a measuring base and a second laser range finder; the second laser range finder is mounted on the measuring base and rotatable about the axis of the measuring base, and laser light emitted by the second laser range finder is perpendicularto the axis of the measuring base; and a scale line is arranged on an end surface of one end facing the reference unit, of the measuring base; and a zero point of the scale line coincides with the axis of the measuring base. The axis measuring device and method can reduce human errors and shorten the measurement time.

Description

technical field [0001] The invention relates to the technical field of generator set installation, in particular to an axis measuring device and method. Background technique [0002] Generator assembly machine and equipment overhaul all involve the installation of rotating and fixed parts. The coaxiality of the rotating parts of the hydro-generator set is an important indicator of its installation quality. Among them, the axis of the hydro-generator set includes the main axis of the generator, the overall axis after the shaft is connected between the generator and the turbine, and the axis at the commutator of the exciter and the slip ring. The measurement and adjustment of these axes can be carried out step by step, or Together, the measurement and adjustment of the rotation axis of the generator set is an important task. [0003] However, at present, the measurement of the axis of the generating set mostly uses more transmission tools and methods. The principle of the m...

AI Technical Summary

Problems solved by technology

[0004] The piano wire earphone method has the following problems in the implementation process: 1. The efficiency is low, and the distance between the piano wire and the piano wire needs to be repeatedly measured before and after each component is adjusted.

2. The reliability is relatively low. The piano wire earphone method is affected by the difference in the feeling of the measurer, and the measured data often have differences. The same measurer may have different measurement results at different positions.

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