摩擦式提升机信号系统及信号处理方法的研究
发布时间：2018-11-25 11:28
【摘要】：多绳摩擦式矿井提升机是复杂的机电液一体化大型设备，是采矿工程领域的核心设备之一。本文对多绳摩擦提升机的信号系统和信号处理方法作了详细的论述，其中包括了相关理论的讨论和电路实验的详细介绍。 安装于主摩擦轮轴端、深度指示器输入轴、钢丝绳摩擦轮轴端的3个增量式脉冲编码器以及安装于深度指示器上的位控开关共同构成了摩擦式提升机提升容器的速度监测和位置监测系统。通过获取编码器的频率信息，系统可根据设定的程序算法计算出提升机运行速度。配合深度指示器，可获取容器在井道中的位置信息。当出现超速、过卷等故障时，信号系统会向中控单元发送故障信息，中控单元将根据所获取信息判断故障类型并向执行机构发出相应的安全保护命令，使相应机构动作，从而保障提升机安全运行。 传感器工作于复杂电磁环境中，编码器脉冲信号在现场传送过程中失真严重。另一方面中控单元输入端口紧张且传统控制程序过于复杂。为解决上述问题本课题设计了一套有效的信号变送传输系统，这也是本论文的重要原创内容。信号变送传输系统可已将初始脉冲信号转换为模拟电压信号，，该电压信号经过再处理后作为CPU判定系统运行状态的基本依据最终传送至中央控制单元。 为实现初始信号转化为系统判定信号的功能，本文设计了信号处理电路。论文详细阐述了电路的设计过程及电路工作原理，给出了信号变送电路各部分输入信号与输出信号间数学关系的推导过程，详细解释了电路间的匹配关系。在完成电路理论探究后，还在实验室环境下搭建了实验电路，对电路功能进行实验探究。分析全状态电路实验所获得的实验数据可以判定，本文中所设计的信号转换电路是有效的，该电路系统能够实现初始信号向CPU判定信号的转换。 论文的最后一部分解释了CPU处理系统状态信息的过程。经过处理的频率信号最终以电压信号的形式传送至系统中央处理器，提升机按照设定的程序判读输入信号所代表的运行信息并发出相应控制指令，从而保证整机系统能够安全高效的运行。
[Abstract]:Multi-rope friction mine hoist is a complex large-scale equipment of electromechanical and hydraulic integration and one of the core equipments in the field of mining engineering. In this paper, the signal system and signal processing method of multi-rope friction hoist are discussed in detail, including the discussion of relevant theory and the detailed introduction of circuit experiment. Installed at the end of the main friction wheel shaft, depth indicator input shaft, Three incremental pulse encoders at the end of friction wheel shaft of wire rope and the position control switch mounted on the depth indicator constitute the speed monitoring and position monitoring system of the lifting vessel of friction hoist. By obtaining the frequency information of the encoder, the system can calculate the speed of the hoist according to the set program algorithm. With the depth indicator, the location information of the container in the well can be obtained. When overspeed, overwinding and other faults occur, the signal system will send fault information to the central control unit. The central control unit will judge the type of fault according to the information obtained and issue the corresponding safety protection command to the executing agency to make the corresponding mechanism operate. So as to ensure the safe operation of the hoist. The sensor works in a complex electromagnetic environment, and the pulse signal of encoder is badly distorted during field transmission. On the other hand, the input port of the central control unit is tight and the traditional control program is too complicated. In order to solve the above problems, this paper designs an effective signal transmission system, which is also an important original content of this paper. The signal transmission system can convert the initial pulse signal into the analog voltage signal, which is transmitted to the central control unit as the basic basis of the CPU to determine the operating state of the system after reprocessing. In order to realize the function of converting the initial signal into the system decision signal, the signal processing circuit is designed in this paper. In this paper, the design process and working principle of the circuit are described in detail, and the derivation process of the mathematical relationship between the input signal and the output signal in each part of the signal transmission circuit is given, and the matching relationship between the circuits is explained in detail. After completing the circuit theory research, the experimental circuit is built in the laboratory environment, and the circuit function is explored experimentally. By analyzing the experimental data obtained from the full-state circuit experiment, it can be judged that the signal conversion circuit designed in this paper is effective, and the circuit system can realize the conversion from the initial signal to the CPU decision signal. The last part of the paper explains the process of CPU processing system state information. The processed frequency signal is finally transmitted to the central processor of the system in the form of voltage signal. The hoist reads the operation information represented by the input signal according to the set procedure and issues corresponding control instructions. In order to ensure that the whole system can be safe and efficient operation.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD633
本文编号：2355943
[Abstract]:Multi-rope friction mine hoist is a complex large-scale equipment of electromechanical and hydraulic integration and one of the core equipments in the field of mining engineering. In this paper, the signal system and signal processing method of multi-rope friction hoist are discussed in detail, including the discussion of relevant theory and the detailed introduction of circuit experiment. Installed at the end of the main friction wheel shaft, depth indicator input shaft, Three incremental pulse encoders at the end of friction wheel shaft of wire rope and the position control switch mounted on the depth indicator constitute the speed monitoring and position monitoring system of the lifting vessel of friction hoist. By obtaining the frequency information of the encoder, the system can calculate the speed of the hoist according to the set program algorithm. With the depth indicator, the location information of the container in the well can be obtained. When overspeed, overwinding and other faults occur, the signal system will send fault information to the central control unit. The central control unit will judge the type of fault according to the information obtained and issue the corresponding safety protection command to the executing agency to make the corresponding mechanism operate. So as to ensure the safe operation of the hoist. The sensor works in a complex electromagnetic environment, and the pulse signal of encoder is badly distorted during field transmission. On the other hand, the input port of the central control unit is tight and the traditional control program is too complicated. In order to solve the above problems, this paper designs an effective signal transmission system, which is also an important original content of this paper. The signal transmission system can convert the initial pulse signal into the analog voltage signal, which is transmitted to the central control unit as the basic basis of the CPU to determine the operating state of the system after reprocessing. In order to realize the function of converting the initial signal into the system decision signal, the signal processing circuit is designed in this paper. In this paper, the design process and working principle of the circuit are described in detail, and the derivation process of the mathematical relationship between the input signal and the output signal in each part of the signal transmission circuit is given, and the matching relationship between the circuits is explained in detail. After completing the circuit theory research, the experimental circuit is built in the laboratory environment, and the circuit function is explored experimentally. By analyzing the experimental data obtained from the full-state circuit experiment, it can be judged that the signal conversion circuit designed in this paper is effective, and the circuit system can realize the conversion from the initial signal to the CPU decision signal. The last part of the paper explains the process of CPU processing system state information. The processed frequency signal is finally transmitted to the central processor of the system in the form of voltage signal. The hoist reads the operation information represented by the input signal according to the set procedure and issues corresponding control instructions. In order to ensure that the whole system can be safe and efficient operation.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD633
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