Abstract:
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Weight reduction and volume reduction have always been the key problems in the design of heavy die forging hydraulic press. Therefore, based on the olivary structure in natural world, a new type of 100 MN olivary die forging hydraulic press with steel wire winding was designed. Then, a new design concept of binding structure for large hydraulic press was proposed, and the design method of winding layer parameters was presented. Furthermore, the structural characteristics of new hydraulic press were simulated and analyzed by FEM, and the comparison analysis on the actual and simulated deformation amounts for the key parts of hydraulic press was completed by on-line loading tests. The results show that the design of new olivary binding structure effectively reduces the weight and volume of hydraulic press while improving its reliability, and the numerical calculation method of prestress can be used as the basis for the parameters design of steel wire winding layer, which is also suitable for the traditional winding technology. In the working state, the structure of new olivary winding hydraulic press meets the strength design requirements. Meanwhile, under the same working pressure, the measured value of test for beam elongation is slightly larger than the simulation value, and the measured value of the extension length of piston rod is also larger than the simulated result.
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Funds:
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浙江省宁波市“3315”计划重点资助项目(20162076);宁波市重大科技攻关项目(2018B10010,2019B10075)
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AuthorIntro:
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陈罡(1974-),男,博士,教授,E-mail:bastarcg@163.com;通讯作者:李文龙(1960-),男,博士,教授,E-mail:wli@nb-ais.com
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Reference:
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