本文選題：磁控 + 位移傳感器　； 參考：《太原理工大學(xué)》2014年碩士論文

【摘要】：本課題是國際科技合作計(jì)劃項(xiàng)目“無人值守工作面液莊支架電液控制系統(tǒng)的研制”(0S2013ZR0493)子課題和山西省重大專項(xiàng)科技項(xiàng)目“全自動國產(chǎn)無人綜采工作面技術(shù)裝備研發(fā)”(20111101024)的重要組成部分,是針對目前礦井下液壓支架電液控制系統(tǒng)嚴(yán)重依賴國外位移傳感器的現(xiàn)狀提出的。 煤礦井下綜采工作面無人值守自動控制系統(tǒng)是煤炭工業(yè)自動化裝備的核心,而此系統(tǒng)的關(guān)鍵就是液壓支架電液控制系統(tǒng)。液壓支架推移是否到位,決定著采煤機(jī)和刮板運(yùn)輸機(jī)是否能夠連續(xù)、可靠地工作。安裝于液壓支架推移油缸中的位移傳感器負(fù)責(zé)實(shí)時(shí)檢測推移油缸的位移,并將位移信號轉(zhuǎn)換成電壓信號傳送至液壓支架架間控制器,最終達(dá)到控制液壓支架做出準(zhǔn)確推移動作的目的。因此,位移傳感器在液壓支架電液控制系統(tǒng)中起著舉足輕重的作用。然而目前我國位移傳感器研制技術(shù)還很不完善,在傳感器檢測精度和分辨率方面與西方國家仍有很大差距,因此開發(fā)具有自主知識產(chǎn)權(quán)并應(yīng)用于液壓支架推移油缸的位移傳感器具有重要的現(xiàn)實(shí)意義。 本文旨在研究開發(fā)一種應(yīng)用于液壓支架推移油缸的位移傳感器。通過磁場仿真,優(yōu)化傳感器磁環(huán)的結(jié)構(gòu)。確定了非接觸式測量方法,具有精度高、穩(wěn)定性強(qiáng)、結(jié)構(gòu)簡單、安裝方便、抗污染性能優(yōu)越等優(yōu)點(diǎn)。主要研究內(nèi)容如下： 在查閱大量國內(nèi)外相關(guān)文獻(xiàn)的基礎(chǔ)上,認(rèn)真分析了當(dāng)前位移傳感器的發(fā)展現(xiàn)狀和發(fā)展趨勢。通過對比各種位移傳感器的特性,并結(jié)合液壓支架的結(jié)構(gòu)和工作方式,制定了磁控位移傳感器的總體方案。 基于等效磁荷理論,分析了磁環(huán)的磁場分布規(guī)律,利用Matlab軟件繪制計(jì)算結(jié)果曲線圖,并利用Ansoft Maxwell仿真軟件對計(jì)算結(jié)果進(jìn)行驗(yàn)證。 根據(jù)磁控位移傳感器的設(shè)計(jì)方案,選擇其需要的干簧管、永磁材料以及傳感器外殼所需要的不銹鋼材質(zhì)、電纜等,并設(shè)計(jì)制作出了磁控位移傳感器樣品。實(shí)驗(yàn)驗(yàn)證了該磁控位移傳感器的有效性和可行性。 設(shè)計(jì)了一套磁控位移傳感器檢測裝置,用于測試磁控位移傳感器的技術(shù)性能。該裝置由直線滑臺、驅(qū)動器、控制電路及顯示屏組成。控制電路向驅(qū)動器發(fā)送脈沖信號,驅(qū)動器驅(qū)動直線滑臺上的步進(jìn)電機(jī)動作,直線滑臺上的滑塊帶動磁控位移傳感器的磁環(huán)運(yùn)動,顯示屏實(shí)時(shí)顯示傳感器的輸出信號。 對磁控位移傳感器從線性度、誤差、時(shí)效穩(wěn)定性、濕度穩(wěn)定性、溫度穩(wěn)定性等方面進(jìn)行性能測試。實(shí)驗(yàn)室和現(xiàn)場試驗(yàn)結(jié)果表明：磁控位移傳感器運(yùn)行穩(wěn)定、測量精度高、線性度好,反映出傳感器能夠準(zhǔn)確穩(wěn)定地測量磁環(huán)的位移。該位移傳感器其結(jié)構(gòu)簡單,安裝方便,抗污染性能好,是一種適用于液壓支架推移油缸中的位移傳感器。
[Abstract]:This subject is a sub-project of the international scientific and technological cooperation project "the development of electro-hydraulic control system of hydraulic support in unattended working face" and the major scientific and technological project of Shanxi Province, "Technical equipment research of fully automatic unmanned fully mechanized mining face".An important part of the "Fat" 20111101024,Aiming at the present situation that the electro-hydraulic control system of hydraulic support under mine depends heavily on foreign displacement sensors.The unattended automatic control system in fully mechanized coal mining face is the core of the automatic equipment of coal industry, and the key of this system is the electro-hydraulic control system of hydraulic support.Whether the hydraulic support is in place or not determines whether the shearer and scraper conveyor can work continuously and reliably.The displacement sensor installed in the bed oil cylinder of the hydraulic support is responsible for detecting the displacement of the bed oil cylinder in real time and converting the displacement signal into the voltage signal to the interframe controller of the hydraulic support.Finally, to control the hydraulic support to make the accurate movement of the purpose.Therefore, displacement sensor plays an important role in hydraulic support electro-hydraulic control system.However, at present, the development technology of displacement sensor in China is still not perfect, and there is still a big gap between China and the western countries in the precision and resolution of sensor detection.Therefore, it is of great practical significance to develop a displacement sensor with independent intellectual property rights and be applied to the displacement sensor of hydraulic support.The purpose of this paper is to develop a displacement sensor for hydraulic support.The structure of the sensor ring is optimized by magnetic field simulation.The non-contact measurement method has the advantages of high precision, strong stability, simple structure, convenient installation and excellent anti-pollution performance.The main contents of the study are as follows:On the basis of consulting a large number of related literatures at home and abroad, the present development status and trend of displacement sensors are analyzed.By comparing the characteristics of various displacement sensors and combining with the structure and working mode of the hydraulic support, the overall scheme of the magnetic displacement sensor is established.Based on the theory of equivalent magnetic charge, the distribution of magnetic field of magnetic ring is analyzed. The curve of calculation result is drawn by Matlab software, and the calculation result is verified by Ansoft Maxwell simulation software.According to the design scheme of magnetically controlled displacement sensor, the dry spring tube, permanent magnet material, stainless steel material and cable needed for sensor shell are selected, and the magnetically controlled displacement sensor sample is designed and manufactured.The effectiveness and feasibility of the magnetically controlled displacement sensor are verified by experiments.A set of magnetic displacement sensor detection device is designed to test the technical performance of magnetic displacement sensor.The device consists of a linear slide table, a driver, a control circuit and a display screen.The control circuit sends the pulse signal to the driver, the driver drives the step motor action on the linear slider, the slider on the linear slider drives the magnetic loop motion of the magnetically controlled displacement sensor, and the display screen displays the output signal of the sensor in real time.The linearity, error, aging stability, humidity stability and temperature stability of the magnetically controlled displacement sensor are tested.The results of laboratory and field tests show that the magnetic displacement sensor has the advantages of stable operation, high measuring accuracy and good linearity, which reflects that the sensor can accurately and stably measure the displacement of the magnetic ring.The displacement sensor has the advantages of simple structure, convenient installation and good anti-pollution performance.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TP212

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