Centering reference type torque sensor calibration and test bench

Abstract

The invention discloses a centering reference type torque sensor calibration and test bench, which comprises a base platform, a guide rail, a sliding bracket, a standard torque sensor, a leveling mainshaft, a to-be-tested torque sensor, a centering mechanism, a middle support and a loading device. According to the centering reference type torque sensor calibration and test bench, the high-precision standard torque sensor is used as a reference signal of a system, and the standard torque sensor is connected in series with the to-be-tested torque sensor; during static calibration, weights are manually placed for loading and applying torque; during dynamic testing, loading or unloading is performed through reciprocating linear motion of an electric push rod, and synchronous data acquisition,analysis and comparison are performed on output indicating values of the standard torque sensor and the to-be-tested torque sensor in static and dynamic calibration processes, so that the purposes ofstatic calibration and dynamic testing of the torque sensor are achieved.

Description

technical field [0001] The invention relates to a static calibration test bench, in particular to a centered reference torque sensor calibration and test bench. Background technique [0002] As a kind of sensor, the torque sensor converts the physical change of the torque into an accurate electrical signal, and its torque is used to evaluate the working capacity, life, efficiency and safety of mechanical and power equipment. The error of automatic production tools and devices that rely on torque to provide operating signals will gradually increase after long-term use, and only through calibration and adjustment can the error be eliminated; manufacturers of torque tools must check the corresponding torque tools during the production process and before leaving the factory. The product is tested and calibrated, and a corresponding file is established for the product. [0003] A torque calibration system and calibration method for a speed torque sensor described in Chinese pate...

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Problems solved by technology

[0003] A torque calibration system and calibration method for a speed torque sensor described in Chinese patent 201910164760.9. The torque calibration is performed by adding or subtracting weights. The calibration operation is simple, but the two ends of the speed torque sensor are connected by two or four claws. When the chuck is installed, its center is difficult to be coaxial with the rotation center of the spindle, and it is also difficult to align;

[0004] A reference torque calibration machine described in Chinese patent 201610837546.1 applies torque through the loader, the tension pressure sensor outputs tension pressure data, and converts the torque value on the output shaft through the program to realize the static calibration of the torque sensor. The disadvantage is that , the reference torque calibration machine cannot dynamically test the torque sensor

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