In-use elevator guide rail straightness detection system and method

Abstract

The invention discloses an in-use elevator guide rail straightness detection system and method. The system involves a stable reference establishing module, a relative distance measuring module, a relative position measuring module, a data acquisition module, an information processing module and a power supply module; the method comprises the steps that a virtual gravity line reference is established by utilizing a laser collimator; a reference coordinate system and a car follow-up coordinate system are established; various easy-to-measure parameters are determined in the car follow-up coordinate system; an integral position relation conversion model is established by utilizing coordinate transformation; and finally the surface straightness of a guide rail is obtained. According to the in-use elevator guide rail straightness detection system and method, the " virtual gravity line reference " is provided for the first time; the coordinate transformation mode is adopted; no reference detection of the elevator guide rail is converted into an on-line accurate detection with an absolute reference through the fusion of sensing data such as a susceptible device susceptor, a geodimeter andan inclinometer, the straightness situation of the elevator guide rail not only can be measured, and the horizontal vibration condition of an elevator during actual operation can also be reflected; and the method is an effective means for detecting the straightness of the in-use elevator guide rail.

Description

technical field [0001] The invention belongs to the field of straightness detection of guide rails, in particular to a system and method for straightness detection of elevator guide rails in use. Background technique [0002] With the vigorous development of the economy, more and more high-rise buildings have sprung up, and the elevator has become an indispensable means of transportation today. As the guiding part of the elevator, the straightness of the guide rail directly affects the running quality and safety of the elevator. , so it is particularly important to detect the straightness of the elevator guide rail. At present, there are many straightness detection methods for the guide rails before installation, and they are relatively mature; but for high-speed elevators that have been running for a long time after installation, the detection methods that can realize the continuous measurement of the straightness of the entire guide rail are still very limited. [0003] I...

AI Technical Summary

Problems solved by technology

But its shortcoming is that it cannot avoid the influence of various vibration factors such as wind vibration, motor vibration, and vibration caused by the trolley guide line on the measurement accuracy. At the same time, it ignores the impact caused by the incomplete horizontal measurement of the PSD surface The influence of the error

But it is obvious that it only solves part of the error effect, and other factors are not considered

Images