考虑重型刮板输送机安全运行的圆环链损伤机制研究

doi:10.16265/j.cnki.issn1003-3033.2024.S1.0041

摘要/Abstract

摘要：

为探究刮板输送机圆环链损伤特征,针对不同的损伤模式,构建圆环链滑蹭磨损和振动冲击损伤的数学模型。通过采用有限元分析软件模拟仿真分析链环-中部槽、链环间滑蹭损伤以及圆环链传动过程的振动冲击损伤,探究圆环链损伤特征。研究结果表明:链环-中部槽滑蹭损伤模拟仿真下,链环底部受力最大为65.92 MPa,最大的磨损深度为0.55 mm;链环-链环滑蹭损伤模拟仿真下,链环链窝处受力最大为164.8 MPa;链环振动冲击损伤模拟仿真下,链环所受最大应力值从39.11 MPa逐渐升高至52.61 MPa。

关键词: 刮板输送机, 圆环链, 滑蹭磨损, 振动冲击, 有限元分析

Abstract:

To study the damage characteristics of the circular chain of the scraper conveyor, a mathematical model was constructed for the sliding and rubbing wear and vibration impact damage of the circular chain for different damage modes. By using finite element analysis software to simulate and analyze the sliding and rubbing damage between chain links and that between the chain link and the middle groove, as well as the vibration impact damage during the circular chain transmission process, the damage characteristics of circular chains were explored. The research results indicate that under the simulation of sliding and rubbing damage between the chain link and the middle groove, the maximum force on the bottom of the chain link is 65.92 MPa, and the maximum wear depth is 0.55 mm. Under the simulation of sliding and rubbing damage between chain links, the maximum force at the chain link socket is 164.8 MPa. Under the simulation of vibration impact damage of chain links, the maximum stress value on the chain link gradually increases from 39.11 MPa to 52.61 MPa.

Key words: scraper conveyor, circular chain, sliding and rubbing wear, vibration impact, finite element analysis

中图分类号:

X951交通运输安全

魏德志. 考虑重型刮板输送机安全运行的圆环链损伤机制研究[J]. 中国安全科学学报, 2024, 34(S1): 148-155.

WEI Dezhi. Damage mechanism of circular chain considering safe operation of heavy-duty scraper conveyor[J]. China Safety Science Journal, 2024, 34(S1): 148-155.

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材料名称	密度/ (g·cm^-3)	弹性模量/MPa	泊松比	屈服强度/MPa	抗拉强度/MPa
ZG30MnSi	7.89	2.06×10⁵	0.28	1 050	570~720
23MnNiCrMo	7.85	2.1×10⁵	0.3	470	1470