Analysis and Calculation of Abnormal Moment Value of Pre-tightening Force for High-voltage Switchgear Fastening Bolt

Liu Bo

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Analysis and Calculation of Abnormal Moment Value of Pre-tightening Force for High-voltage Switchgear Fastening Bolt

更新时间：2026-02-13

- Analysis and Calculation of Abnormal Moment Value of Pre-tightening Force for High-voltage Switchgear Fastening Bolt
- Vol. 43, Issue 5, Pages: 88-94(2020)
- 作者机构：
  
  上海思源高压开关有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM56
- Published：2020
- 稿件说明：
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Liu Bo. Analysis and Calculation of Abnormal Moment Value of Pre-tightening Force for High-voltage Switchgear Fastening Bolt[J]. 2020, 43(5): 88-94.
DOI：

Liu Bo. Analysis and Calculation of Abnormal Moment Value of Pre-tightening Force for High-voltage Switchgear Fastening Bolt[J]. 2020, 43(5): 88-94. DOI：

摘要

高压开关产品在动热稳定试验后

产品内部的部分螺钉在拆卸时

所需的力矩值小于紧固时的标准力矩;而温度的变化会对螺钉紧固的力矩值产生影响。为此

针对振动载荷与温度的变化对力矩的影响进行原因分析与理论论证。

Abstract

This paper analyzes the reasons for the abnormal moment value of the pre-tightening force and dismantling torque of high-voltage switch fastening bolts

and calculates the pre-tightening force of the bolts under the influence of vibration load and temperature change. The theoretical model of bolt pre-tightening force under alternating load is established

and the minimum pre-tightening force value of the bolts is determined to ensure the reliability of high-voltage switches.

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Analysis and Calculation of Abnormal Moment Value of Pre-tightening Force for High-voltage Switchgear Fastening Bolt

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