A hydraulically balanced loading type high-torque static calibration device

Abstract

The invention discloses a hydraulic balance loading type high-torque static calibration device, which includes a torque meter main shaft, and correcting arms are symmetrically and fixedly connected to both ends of the torque meter main shaft, and an upper triangular knife and a lower triangular knife are respectively connected to the upper and lower ends of the correcting arm. A triangular knife, the upper triangular knife is also connected with an upper V-shaped block, the lower triangular knife is also connected with a lower V-shaped block, and the bottom of the lower V-shaped block is provided with a first tension pressure sensor and a first oil cylinder, so The lower part of the V-shaped block at the other end is provided with a second tension pressure sensor and a second oil cylinder. In the present invention, the left first oil cylinder is used for balanced loading, while pulling and pressing, so that the main shaft of the torque meter only bears the torque but not the radial force, thereby reducing deformation, reducing frictional resistance, and improving the calibration accuracy of static calibration.

Description

technical field [0001] The invention relates to a measuring device, in particular to a static calibration device for a large torque meter on a test stand. Background technique [0002] On various test benches involving torque measurement, the torque measurement is generally done by a torque meter, and the torque meter generally needs to be calibrated statically by adding a weight or a calibration cylinder to the calibration arm. [0003] When adding a weight or a calibration cylinder to the calibration arm for calibration, since the force is unilaterally applied, a radial force is also applied to the torque meter spindle at the same time. When the weight or calibration cylinder is applied After a large radial force is applied, it will inevitably cause a certain deformation of the torque meter spindle drive system and generate additional frictional resistance, which affects the calibration accuracy. Contents of the invention [0004] Purpose of the invention: The purpose o...

AI Technical Summary

Problems solved by technology

[0003] When adding a weight or a calibration cylinder to the calibration arm for calibration, since the force is unilaterally applied, a radial force is also applied to the torque meter spindle at the same time. When the weight or calibration cylinder is applied After a large radial force is applied, it will inevitably cause a certain deformation of the torque meter spindle drive system and generate additional frictional resistance, which affects the calibration accuracy

Images