本文選題：落地式摩擦提升機　切入點：提升鋼絲繩　出處：《中國礦業(yè)大學》2015年碩士論文　論文類型：學位論文

【摘要】：落地式摩擦提升機鋼絲繩持續(xù)劇烈振動,不僅影響鋼絲繩和提升設備的使用壽命,而且影響到提升機運行的穩(wěn)定性和安全性。因此,本文以姚橋煤礦2#主井提升機繩弦為研究對象,采用理論、仿真與實驗測試相結合的研究方法,系統(tǒng)地研究提升機的弦振動,為該礦提升系統(tǒng)的安全可靠運行提供技術支撐,并在一定程度上為其他礦提供理論依據(jù)和經(jīng)驗支持。首先,基于連續(xù)分布參數(shù)連續(xù)模型和Hamilton原理建立了鋼絲繩橫向振動模型,并運用Galerkin截斷法求數(shù)值解,分別對不同工況下鋼絲繩橫向振動進行數(shù)值仿真,結合現(xiàn)場實驗測試,驗證了理論模型和求解方法的有效性。其次,建立了繩弦基于多體動力學ADAMS的仿真模型。從仿真精度和仿真時間考慮,基于懸鏈線理論,對鋼絲繩仿真段數(shù)劃分進行了探討;根據(jù)前文分析的提升鋼絲繩橫向振動激勵源,添加不同的激勵形式進行仿真,并結合現(xiàn)場實驗測試驗證了仿真模型的正確性。再次,探討分析提升機現(xiàn)場動態(tài)測試方案,并對測試數(shù)據(jù)進行分析處理,結合理論分析和仿真結果得出弦振動呈現(xiàn)出明顯的共振和拍振現(xiàn)象,且橫向振動的主要影響因素為天輪偏擺、繩弦張力和提升機運行速度。最后,根據(jù)理論分析、仿真與實驗測試結果,從考慮減小弦振動幅度出發(fā),提出對天輪偏擺進行動態(tài)監(jiān)測;從張力對繩弦振頻的影響出發(fā),提出定期檢修調繩器使得鋼絲繩張力平衡。
[Abstract]:Floor type friction hoist rope for severe vibration, not only affect the rope and enhance the service life of the equipment, but also affect the stability and safety of a hoisting machine running. Therefore, this article in Yaoqiao Coal Mine 2# main shaft hoisting rope string as the research object, the research theory, simulation method combined with experiment and testing. Systematic study on lifting string vibration machine, to provide technical support for the safe and reliable operation of the mine hoist system, and to a certain extent for other mines and provide a theoretical basis and empirical support. First of all, the wire rope model of transverse vibration of continuous distribution continuous parameter model and Hamilton based on the principle, and the use of Galerkin method for numerical truncation the solution, respectively. Numerical simulation of wire rope vibration under different operating conditions, combined with field test, verify the validity of the theoretical model and the solving method. Secondly, established Sheng Xianji The simulation model of multibody dynamics in ADAMS. Considering the simulation accuracy and simulation time, based on the catenary theory, simulation of wire rope segments division is discussed according to the lifting wire rope; transverse vibration analysis of the excitation source, adding different incentives in the form of simulation, and combining with the experimental tests verify the correctness of the simulation model again, analysis of hoist field dynamic test scheme and the test data are analyzed, according to the theoretical analysis and simulation results show that the string vibration shows obvious resonance and beat vibration phenomenon, and the main influence factors for the transverse vibration of the wheel swing rope, string tension and hoist speed. Finally, according to the theory of analysis, simulation and experimental results, considering the decrease of the amplitude of vibration, wheel yaw dynamic monitoring; from the tension on the rope string vibration frequency the influence of the Regularly overhaul the rope regulator to balance the tension of the wire rope.

【學位授予單位】：中國礦業(yè)大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TD532

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本文編號：1606203