20MN单臂矫直液压机-单臂矫直液压机本体结构设计.doc

摘 要 锻压生产在国防工业和民用工业中占有极其重要的地位。采用锻压工艺生产的零件广泛应用于电力工业、造船工业、航空工业、重型机械制造业等各个行业中。矫直液压机是机械制造业常见的用于各种板、棒、管、材矫直矫正的设备。 本文基于液压机设计理论，依据已有液压机结构和设计经验，通过可行性分析，确定了20MN单臂矫直液压机的结构与技术参数，给出了本体结构设计方案。在此基础上，论文对液压机上、下横梁等关键部件的受力和变形进行了材料力学分析，对其刚度和强度进行了校核，以保证主要受力部件能够满足机器刚度和抗偏载能力的要求。 根据上述计算与结果分析，修正初始设计方案，为20MN单臂矫直液压机的技术设计提供了可靠的方法和依据。 关键词　单臂矫直；液压机；本体结构；工作缸；横梁 Abstract Forging production in the defense industry and civilian industry occupies an extremely important position. Forging production process using components widely used in the power industry, shipbuilding industry, aviation industry, heavy machinery manufacturing, and other sectors. The Wheatstone alignment hydraulic press is the equipment that the manufacturing industry used for various plank, stick, tube, the material straighten to keep correct familiarly. Based on hydraulic press design theory, according as structure and design experience of free forging hydraulic press, analyzing through feasibility, the dissertation has confirmed that 20 MN the structure of the Wheatstone straighten hydraulic press and technical parameter, providing the design plan of body structure. On this basis, some of the key parts, such as upper beam, lower beam have been on mechanics of materials analyze, the dissertation has checked its rigidity and intensity, so as to ensure that can meet the rigidity of the machine and capability of non-central load by the strength part mainly. According to calculating and analyzing result in above-mentioned, the initial design plan has been revised, the technical design of 20 MN Wheatstone straighten hydraulic press has offered reliable method and basis. Keywords　 Wheatstone straighten; Hydraulic press; Noumenally configuration; Work urn; Beam 目 录 摘 要 I Abstract II 第1章 绪论 1 1.1 课题背景 1 1.2 液压机发展的国内外现状 3 1.3 液压机研究的主要成果 4 1.4 液压机的发展趋势 5 1.5 课题研究的内容和研究的意义 5 1.5.1研究的基本内容，拟解决的主要问题 5 1.5.2研究步骤、方法及措施 6 1.6 本章小结 6 第2章 液压机的本体结构方案设计 7 2.1 引言 7 2.2 单臂式液压机优缺点 8 2.3 液压机本体结构方案设计 8 2.4 工作缸的结构参数设计 9 2.4.1液压缸结构概述 9 2.4.2工作缸设计 12 2.4.3工