【摘要】：多繩摩擦式礦井提升機(jī)是復(fù)雜的機(jī)電液一體化大型設(shè)備，是采礦工程領(lǐng)域的核心設(shè)備之一。本文對多繩摩擦提升機(jī)的信號系統(tǒng)和信號處理方法作了詳細(xì)的論述，其中包括了相關(guān)理論的討論和電路實驗的詳細(xì)介紹。 安裝于主摩擦輪軸端、深度指示器輸入軸、鋼絲繩摩擦輪軸端的3個增量式脈沖編碼器以及安裝于深度指示器上的位控開關(guān)共同構(gòu)成了摩擦式提升機(jī)提升容器的速度監(jiān)測和位置監(jiān)測系統(tǒng)。通過獲取編碼器的頻率信息，系統(tǒng)可根據(jù)設(shè)定的程序算法計算出提升機(jī)運(yùn)行速度。配合深度指示器，可獲取容器在井道中的位置信息。當(dāng)出現(xiàn)超速、過卷等故障時，信號系統(tǒng)會向中控單元發(fā)送故障信息，中控單元將根據(jù)所獲取信息判斷故障類型并向執(zhí)行機(jī)構(gòu)發(fā)出相應(yīng)的安全保護(hù)命令，使相應(yīng)機(jī)構(gòu)動作，從而保障提升機(jī)安全運(yùn)行。 傳感器工作于復(fù)雜電磁環(huán)境中，編碼器脈沖信號在現(xiàn)場傳送過程中失真嚴(yán)重。另一方面中控單元輸入端口緊張且傳統(tǒng)控制程序過于復(fù)雜。為解決上述問題本課題設(shè)計了一套有效的信號變送傳輸系統(tǒng)，這也是本論文的重要原創(chuàng)內(nèi)容。信號變送傳輸系統(tǒng)可已將初始脈沖信號轉(zhuǎn)換為模擬電壓信號，，該電壓信號經(jīng)過再處理后作為CPU判定系統(tǒng)運(yùn)行狀態(tài)的基本依據(jù)最終傳送至中央控制單元。 為實現(xiàn)初始信號轉(zhuǎn)化為系統(tǒng)判定信號的功能，本文設(shè)計了信號處理電路。論文詳細(xì)闡述了電路的設(shè)計過程及電路工作原理，給出了信號變送電路各部分輸入信號與輸出信號間數(shù)學(xué)關(guān)系的推導(dǎo)過程，詳細(xì)解釋了電路間的匹配關(guān)系。在完成電路理論探究后，還在實驗室環(huán)境下搭建了實驗電路，對電路功能進(jìn)行實驗探究。分析全狀態(tài)電路實驗所獲得的實驗數(shù)據(jù)可以判定，本文中所設(shè)計的信號轉(zhuǎn)換電路是有效的，該電路系統(tǒng)能夠?qū)崿F(xiàn)初始信號向CPU判定信號的轉(zhuǎn)換。 論文的最后一部分解釋了CPU處理系統(tǒng)狀態(tài)信息的過程。經(jīng)過處理的頻率信號最終以電壓信號的形式傳送至系統(tǒng)中央處理器，提升機(jī)按照設(shè)定的程序判讀輸入信號所代表的運(yùn)行信息并發(fā)出相應(yīng)控制指令，從而保證整機(jī)系統(tǒng)能夠安全高效的運(yùn)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.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD633

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