| 高强度变截面等断面斗杆的研制 |
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| 引用本文： | 李克成,郑春刚,等.高强度变截面等断面斗杆的研制[J].矿山机械,2002,30(3):26-28. |
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| 作者姓名： | 李克成 郑春刚 |
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| 作者单位： | [1]太原重型机械（集团）有限公司技术中心，山西太原030024 [2]太原重型机械（集团）有限公司挖掘机焊接分厂 |
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| 摘 要： | 针对我国目前露天矿主要采掘设备ＷＫ-４Ｂ型矿用挖掘机的高强度变截面斗杆在变截面处发生裂纹或断裂失效问题，从结构和工艺两方面对其固有和产生的应力集中及残余应力问题进行了分析、探讨，并在新斗杆的设计和制造中刻意加以消除和改善，使新斗杆在吸收原斗杆的优点基础后其结构和工艺更趋于合理，提高了使用寿命。
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| 关 键 词： | 挖掘机 斗杆 失效分析 齿条 加强板 |
Development of High-Strength Arm with Variable Section and Constant Sectional Area |
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| Li Kecheng et al.Development of High-Strength Arm with Variable Section and Constant Sectional Area[J].Mining & Processing Equipment,2002,30(3):26-28. |
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| Authors: | Li Kecheng |
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| Affiliation: | Li Kecheng et al |
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| Abstract: | In view of the crack and fracture occured in the varied section of the high- strength arm with variable section of the WK-4B mine excavator which is main mining equipment in opencast mines in China,the paper analyzes and discusses the natural and produced stress concentration and residual stress in respects of structure and making technology, Which are eliminated and improved painstakingly in the design and manufactur of new arm to make the structure and making technology more reasonable,thus inereasing its service life. |
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| Keywords: | Excavator Arm Uniform strength theory Faliguc break-down |
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