Calibration device and calibration method of torque measurement system

Abstract

The invention relates to the technical field of torque calibration, and discloses a calibration device and a calibration method of a torque measurement system. The calibration device of the torque measurement system comprises a main shaft mechanism and calibration assemblies symmetrically arranged on the two sides of the main shaft mechanism. The main shaft mechanism comprises a main shaft, two ends of the main shaft are provided with to-be-calibrated test pieces in the torque measurement system, and the test pieces measure torque T actual measurement at two ends of the main shaft. The calibration assembly comprises an accompanying test gear box, a torque meter and a torsion bar. The low-speed stage of the accompanying gearbox is connected with the end of the main shaft, one end of the torquemeter is connected with the high-speed stage of the accompanying gearbox, the other end of the torquemeter is connected with the torsion bar, the torsion bar located on one side of the main shaft mechanism is fixed, the torsion bar on the other side is used for applying torque, and the torquemeter measures the torque T height of the high-speed stage. The calibration device of the torque measurement system can realize accurate calibration of the torque measurement system and ensure the accuracy of a calibration result.

Description

technical field [0001] The invention relates to the technical field of torque calibration, in particular to a calibration device and a calibration method for a torque measurement system. Background technique [0002] The gearbox is the core component and key failure component in the transmission field. It is composed of a multi-stage gear shaft system, which transmits both speed and torque during the power transmission process. In most cases, the working environment of the gearbox is relatively harsh, especially for the main gearbox of wind power, whose operating conditions are variable and often encounter extreme load conditions. Monitoring its input and output torque is of great significance for the health monitoring of the gearbox. [0003] At present, due to the small torque of high-speed shafting, it is easy to purchase mature torque meter products to achieve accurate measurement. However, it is difficult to accurately measure and monitor the torque of several thousand ...

AI Technical Summary

Problems solved by technology

[0003] At present, due to the small torque of high-speed shafting, it is easy to purchase mature torque meter products to achieve accurate measurement. However, it is difficult to accurately measure and monitor the torque of several thousand kilonew meters of the main shaft of heavy-duty gearboxes. The main reason is that It is difficult to complete the accurate calibration of the torque measurement system, because the bearings of large megawatt motors are sliding bearings, it is impossible to realize that one motor is locked in a static state, and the other motor applies a large torque according to the load step, so the torque measurement system cannot be realized Accurate calibration of

If the calibration of the torque measurement system is not accurate, the measurement result of the torque measurement system for the torque of the main shaft of the heavy-duty gearbox will also be inaccurate, and it will not be able to realize effective monitoring of the torque state of the main shaft

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