A calibration method for a traction drive elevator balance coefficient detector

Abstract

The invention belongs to the technical field of elevator safety index detection, and particularly relates to a calibrating method of a balance coefficient detector of a traction driving type elevator. The calibrating method comprises the following steps of measuring the balance coefficient K(0) under the condition of empty load of a car by the elevator balance coefficient detector; respectively loading N groups of test weights Q(weight) onto the car, and respectively measuring the measuring value K(measurement) of the balance coefficient under the condition of each group of test weights by the elevator balance coefficient detector; calculating the theoretical value K(weight) of the balance coefficient under various conditions after the N groups of test weights Q(weight) are loaded onto the car; calculating the difference of the measuring value K(measurement) and the theoretical value K(weight) of the balance coefficient, and taking the absolute value of the difference, so as to obtain the absolute difference K(difference) of the balance coefficient; calculating the geometric average number of K(difference), wherein when the differences are all negative values, the error of indication is expressed as -G; when the differences are all positive values, the error of indication is expressed as +G; when the differences contain negative values and positive values, the error of indication is expressed as + / -G. The calibrating method has the advantage that the potential safety hazards of the elevator caused by inconsistency between the measuring value and the actual value of balance coefficient are eliminated.

Description

technical field [0001] The invention belongs to the technical field of elevator safety index detection, and in particular relates to a calibration method for a traction drive elevator balance coefficient detector. Background technique [0002] The elevator balance coefficient is one of the important parameters of the elevator, and it is also a statutory inspection item. After the elevator is installed, it is necessary to measure the balance coefficient of the elevator to ensure that the design requirements are met. Elevator balance coefficient directly affects elevator traction conditions and brake performance requirements. When the balance coefficient is small or large, the balance condition of the traction force of the elevator will be destroyed, and a larger braking force will be required, which will deteriorate the operating condition of the elevator and cause casualties and equipment damage. Therefore, the balance factor should not be changed arbitrarily when the elev...

AI Technical Summary

Problems solved by technology

[0013] Based on the above background, in view of the problem that there is no calibration method for the elevator balance coefficient detector in China, a fast and accurate method for calibrating the elevator balance coefficient detector is given, which is very practical in improving the design of the instrument and improving the measurement accuracy. value