毕业设计（论文）-微机控制恒应力水泥压力试验机.doc

文档介绍：提供各专业全套毕业设计,球球 153893706
济南大学泉城学院
毕业论
题目微机控制恒应力水泥试验系统设计

专业机械设计制造及其自动化
班级机设07Q1
学生
学号 20073006121
指导教师
二〇一一年五月二十六日
摘要
全自动水泥试验机是一种机电化产品。主要由微机、液压泵、溢流阀、电液比例阀、压力传感器等组成。该系统采用计算机作为主控制器,通过外部设备,对试验参数进行设定。其工作过程为:首先由计算机发给控制器试验信号,控制器对液压缸进行检测,把检测到的电压信号经过A/D转换和放大后传给计算机。计算机实现液压系统的比例控制,来达到设计的要求。
关键词:试验机;液压泵;电液;比例阀;压力传感器;PID
ABSTRACT
Automatic electro-pression testing machine is a kind of product of electro-machine. It is mainly made up puter, Hydraulic pump, hydraulic cylinder override relief valve. Electronic-hydraulic servo valve, compression sensor and so on .In this system, puter acts as main controller, through outer equipment instate the test method, test parameter ect.
The procession of work is as follows: At first, puter send testing message testing message to the controller , and then ,the controller control the servo valve to decide pression .At the same time pression sensor get the signal of cylinder pressure. The siginal is transmitted to puter throuth A/D (transform) and be amplified. Secondly, pare the pressure given singal and throuth PID (proportion Integral Differential)revise the control. Signal of the controller .Finally,the system close-loop control is relized ,getting to the demand.
Key word:Testing Machine Hydraulic Pump Electronlic-hydraulic Servo pression Sensor PID
目录
摘要..........................………….………….………..I
ABSTRACT…………….……………………..…………….II
1 前言……….…………………………………………………………….….……………..1
2总体方案的确定说明...........................…………………….………….………..2
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3液压系统的设计...........................…………………….………….………..4
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