本文選題：斗輪取料機(jī) + 配重三角架　； 參考：《燕山大學(xué)》2014年碩士論文

【摘要】：斗輪取料機(jī)利用斗輪連續(xù)取料，是散狀物料儲料場內(nèi)用于物料運(yùn)輸和裝卸不可或缺的專用設(shè)備，被廣泛用于大型散貨港口、碼頭、儲煤廠、鋼鐵廠、水泥廠、焦化廠等領(lǐng)域，進(jìn)行煤炭、焦炭、礦石、砂石等物料的挖取作業(yè)。隨著物料作業(yè)載重量的不斷提高，斗輪取料機(jī)機(jī)械系統(tǒng)和液壓系統(tǒng)的可靠性已成為確保設(shè)備安全穩(wěn)定工作的重要保障。本文以秦皇島港煤二期斗輪取料機(jī)為對象，針對其配重三角架屈曲失穩(wěn)、取料大臂防撞和俯仰液壓系統(tǒng)智能監(jiān)測等問題，結(jié)合現(xiàn)場情況進(jìn)行改進(jìn)方案研究。 配重三角架在斗輪取料機(jī)中占有重要位置，它是取料機(jī)正常工作和實(shí)現(xiàn)取料機(jī)懸臂完成俯仰過程的重要機(jī)構(gòu)，對取料機(jī)的正常運(yùn)行起著非常關(guān)鍵的作用。在分析原有三角架設(shè)計(jì)基礎(chǔ)的方案上，通過有限元模擬，找出原配重三角架的設(shè)計(jì)缺陷，模擬結(jié)果與現(xiàn)場資料所提供的三角架失穩(wěn)變形位置相符。以節(jié)省原材料和降低維修費(fèi)用為目標(biāo)，在油缸處撐桿中間增加了聯(lián)系橫梁，經(jīng)有限元檢核，證明改進(jìn)后的方案強(qiáng)度滿足要求，并在實(shí)際設(shè)備上獲得了應(yīng)用。 針對同一軌道上雙取料機(jī)同時(shí)作業(yè)過程中出現(xiàn)的大臂碰撞事故，本文以大車行走行程編碼器、回轉(zhuǎn)支撐編碼器和俯仰液壓缸位移傳感器檢測信號為基礎(chǔ)，建立了大臂防撞數(shù)學(xué)模型，并結(jié)合煤場取料機(jī)現(xiàn)有控制系統(tǒng)通信途徑，自主開發(fā)了大臂防撞預(yù)警系統(tǒng)�；赩R和MATLAB軟件平臺，設(shè)計(jì)出一套斗輪取料機(jī)防碰撞的虛擬現(xiàn)實(shí)系統(tǒng)，根據(jù)現(xiàn)場采集數(shù)據(jù)形成實(shí)時(shí)監(jiān)控畫面，工作人員可以結(jié)合這些實(shí)時(shí)畫面，不斷調(diào)整斗輪取料機(jī)的工作運(yùn)行狀況，防止發(fā)生意外碰撞，，保護(hù)人機(jī)安全。 俯仰系統(tǒng)液壓缸的工作狀態(tài)是影響設(shè)備運(yùn)行可靠性的關(guān)鍵因素之一，針對傳統(tǒng)人工監(jiān)測方式精度低、無法實(shí)現(xiàn)無人值守的不足，本文利用LABVIEW軟件開發(fā)了一套人機(jī)交互式的監(jiān)測界面，通過實(shí)時(shí)檢測俯仰液壓缸溫度、壓力傳感器信號，使工作人員能夠全面了解俯仰液壓缸的工作情況。一旦發(fā)現(xiàn)問題，能報(bào)警提示工作人員進(jìn)行相關(guān)操作，并準(zhǔn)確判斷故障類型和解決方案，實(shí)現(xiàn)對俯仰液壓缸的智能化監(jiān)測。 論文研究內(nèi)容對于提高斗輪取料機(jī)機(jī)械系統(tǒng)和液壓系統(tǒng)的安全性和可靠性具有重要的理論意義和實(shí)際價(jià)值。
[Abstract]:Bucket wheel feeder is an indispensable special equipment in bulk material storage yard for material transportation and loading and unloading. It is widely used in large bulk cargo port, wharf, coal storage plant, steel plant, cement plant, coking plant and other fields, and is widely used in the field of bulk cargo port, wharf, coal storage plant, iron and steel plant, cement plant, coking plant, etc. Carry on coal, coke, ore, sand and other materials digging operation. With the continuous improvement of the load capacity of material operation, the reliability of mechanical system and hydraulic system of bucket wheel feeder has become an important guarantee to ensure the safety and stability of equipment. Aiming at the problems of buckling instability of counterweight tripod, anti-collision of feeding arm and intelligent monitoring of pitching hydraulic system in Qinhuangdao Port, the improvement scheme is studied according to the situation in the field of the second stage bucket wheel feeder of Qinhuangdao Port, which is aimed at the problems of buckling instability, anti-collision and intelligent monitoring of pitching hydraulic system. The counterweight tripod occupies an important position in the bucket wheel feeder. It is an important mechanism for the normal operation of the feeder and the realization of the lifting process of the cantilever of the picker, which plays a very important role in the normal operation of the feeder. Based on the analysis of the scheme of the original tripod design foundation, the design defects of the original weight tripod are found through finite element simulation. The simulation results are consistent with the deformation position of the tripod instability provided by the field data. Aiming at saving the raw materials and reducing the maintenance cost, a connecting beam is added in the middle of the support bar at the oil cylinder. The finite element check shows that the strength of the improved scheme meets the requirements and has been applied to the actual equipment. In view of the collision accident occurred in the course of working on the same track, this paper is based on the detection signals of the encoder, the rotary support encoder and the displacement sensor of the pitching hydraulic cylinder. The mathematical model of anti-collision is established, and the anti-collision warning system of large-arm is developed by combining with the communication way of the existing control system of the coal yard material picker. Based on VR and MATLAB software platform, a virtual reality system for collision prevention of bucket wheel feeder is designed. According to the data collected on the spot, real-time monitoring pictures are formed, which can be combined with these real-time images. Continuously adjust the working condition of bucket wheel feeder to prevent accidental collision and protect man-machine safety. The working state of the hydraulic cylinder of the pitching system is one of the key factors that affect the reliability of the equipment operation. In this paper, a human-computer interactive monitoring interface is developed by using LABVIEW software. By detecting the temperature and pressure sensor signals of the pitching hydraulic cylinder in real time, the staff can fully understand the working situation of the pitching hydraulic cylinder. Once the problem is discovered, the staff can be alerted and prompted to carry out relevant operations, and the fault type and solution can be accurately judged, so as to realize the intelligent monitoring of the pitching hydraulic cylinder. The research content of this paper has important theoretical significance and practical value for improving the safety and reliability of mechanical system and hydraulic system of bucket wheel feeder.
【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TH237.1;TH137

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