【摘要】：針對煤礦井下采煤機電纜在工作過程中容易發(fā)生二次或多次彎曲,造成電纜過度擠壓、磨損、掉道等惡劣工況這一現(xiàn)象,設計一種采煤機電纜自動拖拽控制系統(tǒng),適用于一般長度綜采工作面,拖拽裝置安裝在電纜槽中,跟隨采煤機電纜同步運行。該系統(tǒng)可實現(xiàn)拖纜裝置自動控制功能,解決了電纜過分擠壓、磨損和掉道等問題,保障了作業(yè)人員的安全。本文在分析采煤機電纜實際工況的基礎上,設計采煤機電纜拖拽裝置,對其結(jié)構(gòu)組成與工作原理進行分析與說明;在明確系統(tǒng)設計原則與要求的基礎上,完成了采煤機電纜自動拖拽控制系統(tǒng)方案設計,提出了恒扭矩與速度跟隨兩種控制思路并分別對其控制原理進行說明,分析了控制系統(tǒng)軟件與硬件組成部分及其具體功能;對采煤機電纜拖拽裝置進行受力分析,對電機、減速器、控制器、變頻器等硬件系統(tǒng)進行設計選型,確定硬件通信技術;編寫兩種控制思路下系統(tǒng)主程序與子程序并進行調(diào)試,建立控制系統(tǒng)上位監(jiān)控界面;搭建實驗臺對采煤機自動拖纜控制系統(tǒng)進行可行性驗證。以上研究工作驗證了采煤機電纜自動拖拽控制系統(tǒng)實施的可行性,可與煤礦井下采煤機配合使用。
[Abstract]:In view of the phenomenon that the cable of coal miner in coal mine is easy to bend twice or many times in the working process, which results in excessive extrusion, wear and drop of the cable, a kind of automatic towing control system for the cable of shearer is designed. Suitable for full mechanized mining face of general length, towing device is installed in cable slot, following the synchronous operation of shearer cable. The system can realize the automatic control function of the towing device, solve the problems of over-extrusion, wear and drop of the cable, and ensure the safety of the operators. Based on the analysis of the actual working conditions of the shearer cable, this paper designs the cable towing device of the shearer, and analyzes and explains its structure and working principle. On the basis of clear system design principles and requirements, the scheme design of automatic towing control system for shearer cable is completed. Two control ideas, constant torque and speed following, are put forward and their control principles are explained respectively. The software and hardware components of the control system and their specific functions are analyzed. The mechanical analysis of cable towing device of shearer, the design and selection of hardware system, such as motor, reducer, controller, frequency converter and so on, are carried out, and the hardware communication technology is determined. The main program and subroutine of the system are written and debugged under two control ideas, the upper monitoring interface of the control system is established, and the feasibility of the automatic towing cable control system of the shearer is verified by setting up an experimental bench. The above work verifies the feasibility of the automatic towing control system of shearer cable, which can be used in cooperation with coal miner.
【學位授予單位】：西安科技大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TD632.1

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