A high-frequency fluctuation high-torque loading device and method

Abstract

A high-frequency fluctuation high-torque loading device and method. The device includes an upper industrial computer, a sensor, a coupling, a hydraulic dynamometer, and a loading motor. A driving gear is connected to the output shaft of the loaded device, and the driving gear is respectively connected to the slave Driven gear 1 and driven gear 2 are meshed, the transmission shaft of driven gear 1 is connected with the transmission shaft of hydraulic dynamometer, the transmission shaft of driven gear 2 is connected with the transmission shaft of loading motor, hydraulic dynamometer and The loading motor is electrically connected with the upper industrial computer. The loaded device drives the hydraulic dynamometer and the loading motor respectively through gear transmission. The hydraulic dynamometer provides continuous and stable high torque, and the loading motor produces torque with high frequency fluctuations. The upper industrial computer is responsible for processing the sensing information of the sensor, and controls the operation of the hydraulic dynamometer and the loading motor through the hydraulic dynamometer servo unit and the loading motor servo unit respectively. The utility model has the advantages of simple structure, convenient operation, high reliability and convenient maintenance, and can carry out high-torque loading with high-frequency fluctuation characteristics on the loaded device.

Description

technical field [0001] The invention relates to a high-frequency fluctuation high-torque loading device and method, which are suitable for loading tests of rotary machines, and are especially suitable for high-frequency fluctuation high-torque loading on the cutting part of a coal shearer. Background technique [0002] The torque loading device is an important equipment for simulation tests. Its main function is to simulate the actual working conditions under laboratory conditions, and apply a load corresponding to the actual working conditions to the loaded device, so as to truly reflect the actual performance of the loaded device. With the development of fault diagnosis technology, torque loading devices are more and more applied to the testing and diagnosis of rotary machinery. However, most of the currently used loading devices can only provide stable large torque, but cannot achieve high-frequency fluctuations in a certain range of torque, so they cannot effectively sim...

AI Technical Summary

Problems solved by technology

However, most of the currently used loading devices can only provide stable large torque, but cannot achieve high-frequency fluctuations in a certain range of torque, so they cannot effectively simulate the real working conditions and load impacts of rotary machinery during actual operation.

Testing rotating machinery without torque fluctuations may lead to an optimistic estimate of the operating state of the rotating machinery, resulting in unnecessary losses

Images