Torque flange calibration device

Abstract

The invention relates to a torque flange calibration device, which solves the problems of low precision and poor field operation practicability of a torque flange calibration mode, and comprises an adjusting weight, an upper arm lever bracket, an upper arm lever, a lower arm lever, an arm lever adjusting assembly, an upper arm lever weight support rod and a lower arm lever weight support rod, wherein the upper arm rod is hinged with the upper arm rod bracket; the two ends of the upper arm rod are fixedly connected with one end of the upper arm rod weight supporting rod and one end of the arm rod adjusting assembly respectively; a torque flange adapter is arranged in the axial center of the lower arm rod; and the two ends of the lower arm rod are fixedly connected with the lower arm rod weight supporting rod and the other end of the arm rod adjusting assembly respectively; the arm rod adjusting assembly adjusts the upper arm rod and the lower arm rod to be parallel to each other; the end parts of the upper arm lever weight supporting rod and the lower arm lever weight supporting rod are used for placing calibration weights, and applying vertical downward force to the upper arm rod and the lower arm rod; and the weight of the arm rod adjusting assembly is equal to the sum of the weights of the upper arm rod weight supporting rod and the lower arm rod weight supporting rod. The method has low requirements on calibration space, reduces a weight lifting device, and is low in cost.

Description

technical field [0001] The invention relates to a torque calibration device, in particular to a torque flange calibration device. Background technique [0002] The torque flange (that is, the torque sensor) has a wide range of application scenarios, and its measurement accuracy directly affects the test results and affects the objective evaluation of product performance. Therefore, it is necessary to calibrate the measurement accuracy of the torque flange to meet product testing requirements. [0003] At present, there are two commonly used calibration methods for torque flanges: one is the calibration method using cylinder loading, which needs to calibrate the cylinder force sensor, and there are system errors that are difficult to eliminate, thus affecting the calibration accuracy of torque flanges; The second is to use a long arm for calibration. When calibrating a torque flange with a large range, the length of the arm is 6m to 10m, so the stiffness of the long arm canno...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of low precision and poor field operation practicability existing in the current torque flange calibration method, the present invention provides a new torque flange calibration device, which uses two parallel calibration arms to reduce the number of external devices that provide reverse thrust. The device loads the weight on two different calibration arms, and the length of each calibration arm is 50% shorter than that of the common calibration arm with the same range, which requires less space for calibration. error, improve the calibration accuracy of the torque flange

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