Method of calibrating output torque of reducer detector

Abstract

The invention discloses a method of calibrating the output torque of a reducer detector. The method adopts a calibrator and the following steps for calibration: firstly, verifying a calibrator, and obtaining a corresponding relationship between an input torque value of the calibrator during the verification and a torsional deformation angle value of a torsional rod during the verification; and secondly, obtaining a torsional deformation angle value of the torsional rod during calibration, replacing the torsional deformation angle value of the torsional rod during the verification with the torsional deformation angle value of the torsional rod during the calibration, finding out the input torque value of the calibrator during the verification from the corresponding relationship, the torque value being an output torque value of the reducer detector, replacing a readout value output at a corresponding moment with a torque sensor of the reducer detector, and obtaining a corresponding relationship between a readout value of the torque sensor of the reducer detector and the output value for application during the torque measurement using the reducer detector. According to the invention, the torque sensor of the reducer detector can be quickly calibrated on site so that the torque measurement of the reducer detector can be more accurate, and the precision tracing is realized.

Description

technical field [0001] The invention relates to a method for calibrating torque, in particular to a method for calibrating output torque of a speed reducer detector. Background technique [0002] The torque sensor is the core component of the reducer test device, and the measured torque value is also an important basic quantity representing the performance of the reducer, so the calibration of the torque sensor is very important. At present, the torque sensors of domestic reducer test devices are all traced to the source of accuracy by submitting for inspection, and only a few domestic verification institutions have the ability to verify the torque value above 5000Nm, which is not only troublesome to disassemble, but also takes too long to verify. To the normal detection work of the user unit, errors such as coaxiality caused by disassembly and assembly also affect the accuracy of the indication. In addition, the torque calibration method of the existing reducer test device...

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