Analysis and Calculation of Abnormal Moment Value of Pre-tightening Force for High-voltage Switchgear Fastening Bolt
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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:
移动端阅览
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:
Analysis and Calculation of Abnormal Moment Value of Pre-tightening Force for High-voltage Switchgear Fastening Bolt
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.