方形传动连接对力矩扳手校准的影响

Q4 Engineering

Measurement Sensors Pub Date : 2025-05-01 DOI:10.1016/j.measen.2024.101380

Andreas Brüge

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引用次数: 0

摘要

基于理论考虑，将方形驱动适配器的尺寸偏差对力矩扳手校准的影响归结为系统偏心的影响。图中显示了商用适配器与方形截面的偏差如何导致校准结果的相对偏差约为1·10−4。借助高精度的可调方形驱动插座，具体地产生了这种尺寸偏差，并进行了实验研究。定性地证实了理论行为，并讨论了扭矩扳手实际校准的结果。提出了一种表征方形传动连接质量的新参数——组合方形度。

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Influence of square drive connections on the calibration of torque wrenches

The influence of dimensional deviations in square drive adaptors on the calibration of torque wrenches is attributed to the effect of systematic eccentricities based on theoretical considerations. It is shown how deviations from the square cross-section, as they occur with commercially available adapters, lead to relative deviations in the calibration results of around 1·10⁻⁴. With the aid of an adjustable square drive socket of high precision, such dimensional deviations are specifically generated and investigated experimentally. The theoretical behaviour is qualitatively confirmed, and the consequences for the practical calibration of torque wrenches are discussed. A new parameter for characterising the quality of a square drive connection, the combined squareness, is proposed.

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