液压元件性能测试系统硬件与软件设计

发布时间：2018-03-02 08:33

本文关键词： 测试系统硬件设计软件设计 PLC MCC　出处：《东北大学》2012年硕士论文　论文类型：学位论文

【摘要】：本课题源于一个实际科研项目。该项目主要是研制液压元件／传动部件综合性能试验系统。试验内容包括典型液压阀、液压泵、液压马达、液压缸和专用传动部件的动、静态性能试验。该试验系统结合了液压传动、自动控制、信号检测、数据库设计、工控机和PLC系统等多项技术。本课题负责测试系统的硬件和软件设计。对于试验系统来说,测试系统的设计关系重大,它的稳定性和安全性关系到整个试验系统能否发挥它的作用。本论文简要介绍了液压测试系统的常见控制方式和测试系统设计用到的S7-300系列PLC软、硬件配置和使用情况。在硬件设计中,包括了PLC系统设计和MCC设计。在PLC系统设计中,工控机作为上位机,PLC作下位机,它们之间通过以太网通讯。下位机使用PROFIBUS-DP网络,组成分布式I／O系统。在MCC设计中,包括了电机主电路设计、控制电路设计和反馈信号电路设计。在程序设计中,首先介绍了STEP7的程序结构,然后是试验系统中通用功能的程序设计和液压缸性能试验和液压泵／液压马达性能试验的程序设计。完成测试系统的硬件与软件设计后,对系统进行了初步调试,验证了上述设计的可行性。
[Abstract]:This subject is derived from a practical scientific research project. The project is mainly to develop a comprehensive performance test system for hydraulic components / transmission components. The test contents include the movement of typical hydraulic valves, hydraulic pumps, hydraulic motors, hydraulic cylinders and special transmission components. Static performance test. The test system combines hydraulic transmission, automatic control, signal detection, database design, industrial control computer and PLC system, etc. The subject is responsible for the hardware and software design of the test system. For the test system, the design of the test system is of great importance, and its stability and safety are related to whether the whole test system can play its role. This paper briefly introduces the common control methods of hydraulic test system and the software, hardware configuration and usage of S7-300 series PLC used in the design of the test system. In the hardware design, it includes the design of PLC system and MCC. In the design of PLC system, IPC is used as the lower computer, which communicates through Ethernet. The lower computer uses PROFIBUS-DP network. The distributed I / O system is composed of main circuit design, control circuit design and feedback signal circuit design in MCC design. In the program design, the program structure of STEP7 is introduced, then the program design of general function in the test system and the performance test of hydraulic cylinder and hydraulic pump / hydraulic motor are designed. After the hardware and software design of the test system is completed, the feasibility of the above design is verified by the preliminary debugging of the system.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137.5;TP274

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