A test method for simulating loading of an operating mechanism by a simulating loading device

Abstract

The invention discloses an analog loading device, which comprises a box body, an electric control system arranged inside the box body, a loader, a loading program controller, a grating encoder, an angle measuring and control instrument, a speed sensor, an operating mechanism and a computer measurement and control system, wherein the grating encoder is used for measuring the main shaft turning angle at the center of the loader synchronously rotating with main shaft of a sample mechanism and outputting a pulse signal to the angle measuring and control instrument; the turning angle of the main shaft at the center is displayed through calculation, an analog voltage corresponding to a preset control-starting angle is output to the input end of the loading program controller, and the loading program controller is controlled for outputting direct-current constant current to the loader, so that the resisting moment of the loader is controlled so as to satisfy the measurement of mechanical characteristics. The device disclosed by the invention has the advantages of being compact in structure, convenient to use, reliable to work, stable for performance, long in service life, low in cost, free of maintenance, and the like; and the device can efficiently realize the analog loading test of program control for a motor operating mechanism used for a high-voltage switch and a spring operating mechanism with small operating power.

Description

technical field [0001] The invention relates to a simulation loading device for an electric operating mechanism of a high-voltage switch and a spring operating mechanism with small operating work, and a test method for simulating loading on the operating mechanism. Background technique [0002] The electric operating mechanism of the high-voltage switch and the spring operating mechanism of the small operating work are often tested by no-load, with a high-voltage switch load or a horizontal simulation test device during the factory test. First, the reliability of the mechanism’s rated output torque cannot be detected by using the no-load test; second, the high-voltage switch load test device is used for the test. Since the high-voltage switch is a product, its mechanical life is limited, and its resistance torque will change with use. The frequency drops rapidly, the stability of data becomes worse, and the maintenance cost is high. It is not suitable as a test device for re...

AI Technical Summary

Problems solved by technology

First, the reliability of the mechanism’s rated output torque cannot be detected by using the no-load test; second, the high-voltage switch load test device is used for the test. Since the high-voltage switch is a product, its mechanical life is limited, and its resistance torque will change with use. The frequency drops rapidly, the stability of data becomes worse, and the maintenance cost is high. It is not suitable as a test device for regular inspection of the output torque of the operating mechanism; The test device is inconvenient to install with the tested operating mechanism, the output angle of the mechanism cannot be measured, and the resistance torque of a single load is constant, which cannot be close to the actual change of the resistance torque of the high-voltage switch. That is to say, the device can only achieve a constant resistance torque. Loading, and the moment of inertia cannot be adjusted, the simulation effect is poor

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