【作者】 高为宫；

【导师】 王峻峰；

【作者基本信息】 华中科技大学 ， 机械电子工程， 2005， 硕士

【摘要】 随着现代轧钢设备逐步大型化、连续化、高速化和自动化,迫切需要开展轧钢设备的状态监测与故障诊断研究工作。扭矩作为反映轧机主传动系统工作状态的一个重要的力能参数,越来越引起工程技术人员和工厂管理者的重视,并且扭矩测量技术己成为测试技术领域的一个新的研究方向。尽管可以直接测量扭矩,但现场在传动轴粘贴和安装电阻应变片工艺要求比较高,恶劣的工作环境容易降低应变片的使用寿命,因此这种方法不宜作为长期在线监测,可作为短时间的临时测量之用。相反,主电机电参数的测量简单可靠,通过建立适当的动力学模型,可以通过测量电参数反演出扭矩。作为监测扭矩与电参数之间的关系式,从而实现对扭矩的间接监测。首先,本文研究了扭矩监测系统的原理、监测信号、及其主要功能,重点阐述了扭矩信号采集与遥测原理及方法。然后,根据系统基本要求设计了基于单片数据采集芯片ADμC812的无线数据采集系统。ADμC812是一种用于数据采集的新型单片数据采集芯片,该芯片将数模转换器(DAC)、模数转换器(ADC)与单片机8051集成在一个芯片上,大大简化了数据采集系统的设计。采集数据通过无线收发模块传输到上位机。并介绍了数据采集系统的软件开发。最后,对全文进行了总结,并对该系统的后续工作及轧机扭矩监测技术的发展提出展望。更多还原

【Abstract】 With modern rolling equipment become large-scale, continual execution, high speed and automatic, the condition monitoring and fault diagnosis of roll equipment has already become urgent need. Torque as an important parameter of force and energy that reflects main drive system working condition has been paid more and more attention by engineering technician and factory curator, and torque measure technology has become a new course in the field of measure technology. Although torque monitoring is feasible, the sticking and installing jobbing-sheet is difficult and the circumstance of rolling mill reduces the lives of jobbing-sheet. So the direct on-line measurement is not fit for long time but for short time. However, the measurement of electronic parameters is easy and reliability. The relationship between the torque and these parameters can be obtained by establishing the suitable dynamical model then the value of torque can be calculated by measurement of these electronic parameters for condition monitoring. So that accomplishes the torque indirect monitoring. Firstly, the principle, signals and main functions of this system have been studied in this paper, which specifically demonstrates the principle as well as the way of torque signal acquiring and measuring by telemeter. Then a data acquisition and wireless transmission system, which based on ADμc812 and Flash Rom W29C040, is designed according to the system’s basic demands. ADμC812 is fully integrated data acquisition system incorporating ADC, DAC and MCU on a single chip. So data acquisition system is made very easy to develop. The data finally is transferred to PC by wireless transmission module. At last this paper introduces the software development of data acquisition system. In the end, a summary of the thesis and the future view of next work and the development of torque monitoring of Rolling mill are given.更多还原