| 6 000 t拉伸矫直机拉伸头承载能力的研究 |
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| 引用本文： | 朱才朝,黄泽好,谭勇虎,乔莉. 6 000 t拉伸矫直机拉伸头承载能力的研究[J]. 农业机械学报, 2006, 37(4): 107-110 |
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| 作者姓名： | 朱才朝 黄泽好 谭勇虎 乔莉 |
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| 作者单位： | 重庆大学机械传动国家重点实验室;重庆科技学院机电学院 |
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| 摘 要： | 利用大型工程分析软件I-DEAS建立6 000t拉伸矫直机拉伸头--固定夹头和活动夹头实体几何模型,用弹簧单元模拟预紧螺栓,对拉伸头承载能力进行有限元计算,分析了预紧螺栓及其预紧力对设备承载能力的影响,并通过现场测试验证分析计算的结果.结果表明预紧螺栓的存在使设备承载能力提高25%以上,螺栓预紧力每提高1 000 kN,C形板应力值下降约2.5%,当螺栓预紧力控制在5 000 kN时,该拉伸机最大拉伸能力可达55 000 kN.在实际使用过程中,充分发挥和有效控制预紧螺栓的预紧力,防止预紧螺栓在拉伸过程中松动,以保证设备的安全运行.
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| 关 键 词： | 拉伸矫直机 承载能力 有限元 应变测试 |
| 收稿时间： | 2004-10-29 |
| 修稿时间： | 2004-10-29 |
Study on Bearing Capacity for Stretching Head of 6 000 t Stretching and Straightening Machine |
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| Zhu Caichao,Huang Zehao,Tan Yonghu,Qiao Li. Study on Bearing Capacity for Stretching Head of 6 000 t Stretching and Straightening Machine[J]. Transactions of the Chinese Society for Agricultural Machinery, 2006, 37(4): 107-110 |
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| Authors: | Zhu Caichao Huang Zehao Tan Yonghu Qiao Li |
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| Affiliation: | 1.Chongqing University 2.Chongqing University of Science and Technology |
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| Abstract: | The solid finite element model of 6 000 t stretching head was constructed by using CAD/ CAM software I-DEAS, and based on the simulation and experiment, the bearable stretching force and the preload of the bolt were obtained. The analytical results showed that the load- carrying capacity of the device increased more than 25% with the application of the preload bolts and pretightening force. These research results provided theoretical foundation for the design and operation of this type of devices. |
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| Keywords: | Stretching and straightening machine Bearing capacity FEM Strain measurement |
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