锻压技术

50 MN预应力钢丝缠绕液压缸关键技术参数的确定

英文标题：Determination on key technical parameters for prestressed steel wire-wound hydraulic cylinder 50 MN

作者：夏卫明骆桂林嵇宽斌

分类号：TH123+.3

出版年,卷(期):页码：2017,42(2):93-99

摘要：

采用理论分析与有限元模拟相结合的方法对预应力钢丝缠绕液压缸关键技术参数进行了研究。将钢丝层简化为单层厚壁圆筒，建立1/4双层圆筒的平面应力轴对称有限元模型，钢丝层施加不同预紧力，得到外压随钢丝层厚度变化的曲线，可确定缠绕应力和钢丝层厚度。建立了参数化6层钢丝缠绕缸筒的1/4平面轴对称应力有限元模型，以不同预紧力递减增量进行遍历计算，以最终钢丝层对缸筒外壁压力的设计值为依据选择合适的钢丝层初始缠绕应力和预应力递减增量。最终确定了预应力钢丝缠绕缸筒关键技术参数，根据这些技术参数设计制造了内压为80 MPa的50 MN液压缸。

The key technical parameters of prestressed steel wire wound hydraulic cylinder were studied by theoretical analysis and finite element method. Then, a single layer thick wall cylinder was simplified as the steel wires, and 1/4 of the double cylinders plane stress xisymmetric finite element model was established. Therefore, the curves of changing thickness of the steel wire layers were obtained through applying different pre-tightening forces in the steel wire, and the wound stress and thickness of the steel wire layers were confirmed. Furthermore, 1/4 axisymmetric parametric plane stress finite element model of six layers steel wires wound cylinder was built, and the right initial wound stress and prestress reduction increments were chosen by traversal calculation in the reduction of different pre-tightening force increments and the final pressure setting on the external wall of the cylinder which generated by pre-tightening steel wires. At last, the key technology parameters of prestressed steel wire wound cylinder were determined, and the hydraulic cylinder 50 MN with internal pressure 80 MPa was designed and manufactured according to the above technical parameters.

基金项目：

夏卫明（1981-），男，硕士，工程师

参考文献：

［1］林峰，颜永年，吴任东，等.重型模锻液压机承载结构的发展[J].锻压装备与制造技术,2007,42(5):27-31.Lin F, Yan Y N, Wu R D, et al.The development of bearing structure in heavy die forging hydraulic press[J]. China Metal-forming Equipment & Manufacturing Technology, 2007,42(5):27-31.
［2］林峰,颜永年,吴任东,等.现代重型模锻液压机的关键技术[J].机械工程学报,2006,42(3):9-14. Lin F,Yan Y N,Wu R D,et al. Key technologies of modern heavy die forging press[J]. Chinese Journal of Mechanical Engineering, 2006,42(3):9-14.
［3］颜永年.预应力钢丝缠绕超高压简体的应力及变形分析[J].清华大学学报:自然科学版，1978,18(2):105-118.Yan Y N. An analysis of stresses and deformations in a wire-winding prestressed cylinder under high internal pressure[J].Journal of Tsinghua University：Science and Technology,1978,18(2):105-118.
［4］颜永年.预应力钢丝缠绕筒体的设计计算[J].清华大学学报:自然科学版,1978,18(4):106-119.Yan Y N. Design of wire winding prestressed cylinder under high internal pressure[J]．Journal of Tsinghua University:Science and Technology,1978,18(4):106-119.
［5］夏卫明,骆桂林,嵇宽斌.基于ANSYS的平面轴对称接触模型参数设置研究[J].机床与液压,2013,41(15):100-102.Xia W M,Luo G L, Ji K B. Study on parameters settings of plane axisymmetric contact model based on ANSYS[J]. Machine Tool & Hydraulics, 2013,41(15):100-102.
［6］夏卫明,骆桂林,嵇宽斌.基于ANSYS的两种轴孔过盈配合模型[J].机械工程师,2012,(12):129-131.Xia W M,Luo G L,Ji K B. Two types of shaft and hole inference fitting models based on ANSYS[J]. Mechanical Engineer, 2012, (12):129-131.
［7］颜永年.机械设计中的预应力结构[M].北京:机械工业出版社,1989.Yan Y N. Prestressed Structures in Mechanical Design [M]. Beijing: China Machine Press，1989.
［8］帅长红.液压机设计、制造新工艺新技术及质量检验标准规范实务全书[M].北京：北方工业出版社,2000.Shuai C H. New Technology of Hydraulic Design, Manufacturing Technology and Quality Inspection Standard Practice Encyclopedia [M]. Beijing：Northern Industrial Publishing House, 2000.

服务与反馈：

【文章下载】【加入收藏】