1、哈尔滨理工大学学士学位论文- I -学士学位论文3150KN 专用液压机的液压系统设计摘要本机器适用于一般金属压制、塑料、粉末冶金压制、可塑型材料的压制工艺。它由主机及控制机构两大部分组成，通过管路及电气装置联系起来构成一整体。主机部分包括机身，主缸，顶出缸及充液装置等组成。控制机构包括动力机构，上下限程装置，管路及电气箱等部分组成。其液压系统由能源转换装置（泵和油缸） ，能量调节装置（各种阀）以及能量输送装置（油箱，充液油箱，管路）等组成。本机器的工作压力，压制速度，空载快速下行和减速的行程范围均可根据工艺需要进行调整，并能完成顶出工艺，不带顶出工艺，拉伸工艺三种工艺方式。本机器主机呈长方形
2、，外型新颖美观，动力系统结构简单，紧凑，动作灵敏可靠，并可实现调整，手动及半自动三种操作方式。整机均提供了典型的工艺动作即上滑块快速下行、慢速加压、保压延时、快速回程与停止。下缸活塞顶出、退回或浮动压边下行、停止、顶出。由于增设了下缸活塞浮动压边下行的工艺动作，就可利用顶出缸做液压垫，利用倒拉伸工艺实现金属薄板拉神成型的工艺要求。关键词压制；液压系统；压边哈尔滨理工大学学士学位论文- II -3150KN Special Hydraulic Machine Hydraulic System DesignAbstractThe machinery for general suppression
3、of metal plastic, powder metallurgy suppression, plastic materials can suppress the process. It consists of host and control most of the two institutions, through pipelines and installations linked to constitute a whole. Including the host part of the fuselage, the main tank, a tank top and liquid-f
4、illed devices, and other components. Control agencies, including force, the maximum and minimum levels-devices, pipes and electrical boxes and other components. Its hydraulic system by the energy conversion devices (pumps and fuel tanks), energy-conditioning (all valve) and energy transmission devic
5、es (fuel tank, liquid-filled tank, piping) composed. The machines work pressure, the suppression of speed, no-load fast and slow down the scope of the itinerary can be adjusted in accordance with the need for technology and top-out process can be completed, without a roof process, drawing process of
6、 three ways. The host was rectangular machines, new aesthetic appearance, the power system used cartridge valve, the structure is simple, compact, sensitive and reliable action, and to achieve adjustment, the three semi-automatic and manual mode of operation.offer of a typical action that is rapidly
7、 descending on the slider, slow pressure, Bao calendar, with the rapid return to stop. The cylinder piston to the top, back-pressure or floating down, stop, to the top. As provided under the pressure cylinder piston floating down the side of action, we can make use of hydraulic cylinders to the top
8、pad, using inverted drawing process to achieve sheet metal forming the pull of God demands.哈尔滨理工大学学士学位论文- III -Keywordssuppressed; hydraul哈尔滨理工大学学士学位论文- IV -icsystem; Pressure哈尔滨理工大学学士学位论文- V -目录摘要 .IAbstract.II第 1 章 绪论 .11.1背景11.2国内外液压机技术发展状况及发展趋势11.2.1国内外液哈尔滨理工大学学士学位论文- VI -压机发展状况21.2.2液压机技术发展趋势21.2.3国内外液压机的类型21.3研究哈尔滨理工大学学士学位论文- VII -的意义31.4问题的提出和研究的内容41.4.1问题的提出41.4.2液压系统设计的哈尔滨理工大学学士学位论文- VIII -步骤4第 2 章液压系统设计 .62.1概述62.1.1液压传动系统的主要组成62.1.2液压机的结构形式和工哈尔滨理工大学学士学位论文- IX -艺方式62.2明确工作要求，进行工况分析72.2.1结构概述72.2.2工作情况82.2哈尔滨理工大学学士学位论文- X -.3设计参数92.2.4负载分析及绘制负载图和速度图92.3拟订液压系统原理图
