發(fā)布時間：2018-04-22 14:06

  本文選題：電梯轎廂意外移動 + 檢測與保護�。� 參考：《北京工業(yè)大學(xué)》2015年碩士論文

【摘要】：隨著高層建筑的增多,電梯在生活中所起的作用也越來越大,其安全也越來越為人們所重視。電梯轎廂的意外移動極易造成剪切、擠壓等事故,直接影響到生命財產(chǎn)安全,因此,對轎廂的運行進行監(jiān)測,能可靠的檢測到意外移動并通過安全裝置及時采取保護措施具有重要的意義。本文以電梯轎廂意外移動的檢測和保護裝置的設(shè)計為對象,分析了轎廂意外移動的原因,并對裝置的總體設(shè)計方案、硬件選型、設(shè)計和軟件設(shè)計幾個方面介紹。直接讀取轎廂運行的狀態(tài)避免了鋼絲繩、旋編等非接觸部件可能存在的不可靠風(fēng)險,以非介入式的狀態(tài)檢測方法避免了對電梯原控制回路改變而引發(fā)的責(zé)任問題,更使得該設(shè)計能夠適用于不同廠家不同型號的電梯,為已有電梯的安全改造提供了技術(shù)方案。本設(shè)計以西門子S7-200型號的PLC作為控制器,存儲、分析采集到的信息,并判斷運行狀態(tài)、驅(qū)動執(zhí)行機構(gòu)采取安全措施。利用了自由口通訊將LDM301大量程激光位移傳感器與PLC進行通信連接,直接測量轎廂運行的速度、所處井道內(nèi)的位置,通過電梯控制接觸器的輔助觸點狀態(tài)分析電梯運行指令,判斷電梯是否存在層門、轎門被人為封接的風(fēng)險以及轎廂是否處于意外移動狀態(tài)。當(dāng)發(fā)生意外移動時,及時切斷電梯主機驅(qū)動電路,用鋼絲繩制動器以夾緊曳引鋼絲繩的方式停止轎廂運行,向救援人員發(fā)送危險報警短信,并對轎廂內(nèi)乘客進行安撫和警示。
[Abstract]:With the increase of high-rise buildings, elevators play a more and more important role in life, and their safety is paid more and more attention. The accidental movement of elevator car can easily cause shearing, extrusion and other accidents, which directly affect the safety of life and property. Therefore, the operation of the car is monitored. It is of great significance to reliably detect accidental movement and take timely protective measures through safety devices. This paper takes the design of the detection and protection device for the accidental movement of the elevator car as an object, analyzes the reasons for the accidental movement of the car, and introduces the overall design scheme, hardware selection, design and software design of the device. The running state of directly reading the car avoids the unreliable risk of non-contact parts such as wire rope, spin knitting and so on, and avoids the problem of responsibility caused by the change of the original control loop of elevator by non-interventional state detection method. Moreover, the design can be applied to different types of elevators in different manufacturers, and provides a technical scheme for the safety transformation of existing elevators. This design takes Siemens S7-200 PLC as the controller, stores, analyzes the collected information, judges the running state, and drives the actuators to take safety measures. The LDM301 large range laser displacement sensor is connected with PLC by free port communication. The speed of the car is measured directly, the position of the shaft is located, and the elevator operation instruction is analyzed by the auxiliary contact state of the elevator control contactor. Determine whether the elevator has a floor door, the risk of the door being artificially sealed, and whether the car is in an accidental state of movement. When accidental movement occurs, the driving circuit of the main engine of the elevator is cut off in time, the car is stopped by wire rope brake in the way of clamping and drawing the wire rope, the danger alarm message is sent to the rescuers, and the passengers in the car are appeased and warned.
【學(xué)位授予單位】：北京工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU857

【參考文獻】

相關(guān)期刊論文 前1條

1 鄧麗華;孫福強;劉宇;鄭甜;洪珊琴;;非接觸式位移傳感器在動響應(yīng)測試中的應(yīng)用研究[J];電子技術(shù)與軟件工程;2014年12期

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本文編號：1787541