Output torque calibrator for reducer detector

Abstract

The invention discloses an output torque calibrator for a reducer detector. The output torque calibrator includes a torque rod. The upper end of the torque rod is a torque input end connected with the output terminal of the reducer detector while the lower end is a fixed end. The upper part of the torque rod is fixedly connected with a mounting frame I. The lower part of the torque rod is fixedly connected with a mounting frame II. A round grating ruler is mounted on the mounting frame II. The round grating ruler and the torque rod are arranged coaxially. A reading head fitting with round grating ruler is mounted on the mounting frame I. The reading head is connected with a data display and record device. According to the invention, by using the torque rod, a problem that torque loss errors of a transmission chain between a torque sensor and a to-be-detected reducer in a reducer detector cannot be calibrated by a traditional measurement method is solved. Errors caused by torsion deformation, friction and coaxiality of the transmission chain are calibrated together. The torque sensor of the reducer detector can be calibrated quickly in a field. Torque measurement of the reducer detector becomes more accurate and accurate tracking is realized.

Description

technical field [0001] The invention relates to a torque calibrator, in particular to a speed reducer detector output torque calibrator. 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 is to directly measure the o...

AI Technical Summary

Problems solved by technology

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, the error of coaxiality caused by disassembly and assembly also affects the accuracy of the indication value

In addition, the torque calibration method of the existing reducer test device is to directly measure the output end of the torque sensor. However, since the torque sensor is often not directly connected to the reducer under test, there is a transmission chain between the torque sensor and the reducer under test. , the calibration state is inconsistent with the use state, because the coaxiality error, deformation, friction and other influencing factors will cause the loss of torque in the transmission, and then cause the actual torque value acting on the reducer (the output torque of the reducer test device) and the torque There is a deviation in the reading value of the sensor, so the output torque of the reducer test device needs to be calibrated to solve the problem that the torque loss in the transmission chain cannot be calibrated and compensated

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