本文關(guān)鍵詞：基于PLC的全自動防爆電動平車控制系統(tǒng)設(shè)計　出處：《北華航天工業(yè)學(xué)院》2017年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 電動平車控制系統(tǒng) PLC 防爆 變頻調(diào)速 定位

【摘要】：電動平車適用于短距離定點頻繁運輸重物,它作為企業(yè)廠房內(nèi)部、廠房與廠房之間的首選運輸工具,大大節(jié)約了人力,提高了生產(chǎn)效率。為了滿足電動平車特殊環(huán)境的使用要求,實現(xiàn)負載運輸過程的全自動化,本文完成了電動平車控制系統(tǒng)的設(shè)計。首先根據(jù)電動平車的技術(shù)指標要求制定設(shè)計方案,采用PLC可編程控制器控制,單臺變頻電動機雙輪驅(qū)動,激光測距和電動推桿機械定位共同實現(xiàn)準確定位的方案;接著對電氣控制系統(tǒng)的硬件進行設(shè)計,包括電氣原理圖設(shè)計和核心設(shè)備的選型,電氣原理圖在設(shè)計過程中分為PLC電路、配電電路和控制回路三部分,核心電氣設(shè)備包括PLC可編程控制器、電動機、變頻器、位移傳感器和觸摸顯示屏,由于電動平車工作在爆炸性氣體環(huán)境中,因此必須選擇滿足相應(yīng)防爆等級要求的電氣設(shè)備,對于無防爆型產(chǎn)品的設(shè)備安裝單獨的防爆外殼;然后進行電氣控制系統(tǒng)的軟件設(shè)計,包括PLC控制程序和人機交互界面的設(shè)計,PLC控制程序利用STEP7編程環(huán)境下的LAD編程語言、模塊化編程方式編輯,人機交互界面采用觸摸屏廠家自帶的FD2000組態(tài)軟件編輯;最后進行電動平車控制系統(tǒng)的桌面調(diào)試和整車聯(lián)試。本次設(shè)計的電動平車控制系統(tǒng)符合技術(shù)指標要求,實現(xiàn)了貨物運輸過程的全自動化。電動平車試運狀況良好,達到了預(yù)期目標,能夠在爆炸性氣體環(huán)境中平穩(wěn)運行并準確定位、可靠制動,具有操作簡便、承載能力大、使用壽命長、維修容易和性能穩(wěn)定等優(yōu)點。
[Abstract]:Electric flat car is suitable for the frequent transportation of heavy objects at short distance fixed points. It is the first choice transportation tool between the factory building and the factory building, which greatly saves manpower. In order to meet the requirements of the special environment of electric flat car, the full automation of the load transportation process is realized. In this paper, the design of electric flat car control system is completed. Firstly, according to the technical requirements of electric flat car, the design scheme is formulated, the PLC programmable controller is used to control the control system, and the single frequency conversion motor is driven by two wheels. Laser ranging and mechanical positioning of electric push rod to achieve accurate positioning scheme; Then the hardware of the electrical control system is designed, including the electrical schematic design and the selection of core equipment. The electrical schematic diagram is divided into three parts: PLC circuit, distribution circuit and control circuit. Core electrical devices include PLC programmable controllers, motors, inverters, displacement sensors and touch screens, due to electric flat cars operating in explosive gas environments. Therefore, it is necessary to select the electrical equipment that meets the requirements of the corresponding explosion-proof grade, and install a separate explosion-proof shell for the equipment without explosion-proof products; Then the software design of the electrical control system is carried out, including the design of the PLC control program and the interface between human and computer. The PLC control program uses the LAD programming language under the STEP7 programming environment. Modular programming mode editing, man-machine interaction interface with the touch screen manufacturer's own FD2000 configuration software editing; Finally, the electric flat car control system desktop debugging and the whole car test. This design of electric flat car control system meets the technical requirements. The electric flat car is in good condition and reaches the expected goal. It can run smoothly in the explosive gas environment, locate accurately and brake reliably. It is easy to operate. Large bearing capacity, long service life, easy maintenance and stable performance.
【學(xué)位授予單位】：北華航天工業(yè)學(xué)院
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TP273

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相關(guān)期刊論文 前1條

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