發(fā)布時間：2018-07-31 09:51

【摘要】：單缸插銷伸縮機構(gòu)作為大噸位,高性能工程起重機的核心部件之一,近年來廣泛應(yīng)用到國內(nèi)外的伸縮臂起重機上,其結(jié)構(gòu)形式多樣,原理不盡相同。為了獲得動作靈活,安全可靠,維護方便,伸縮效率高的伸縮系統(tǒng),國內(nèi)外多家起重機生產(chǎn)商都積極投入,深入研究。 本文以大連理工大學與太原重型機械集團有限公司合作開發(fā)的TZM1200t伸縮臂起重機為算例,對齒輪互鎖式單缸插銷機構(gòu)的結(jié)構(gòu)性能做了深入研究,形成一套比較完整的設(shè)計計算、參數(shù)優(yōu)化方法,主要工作如下： (1)提出了齒輪互鎖式單缸插銷機構(gòu)的設(shè)計要求,以TZM1200t伸縮臂起重機的單缸插銷機構(gòu)為算例,通過分析,確定了該機構(gòu)的結(jié)構(gòu)形式,傳動原理,對整個機構(gòu)的相關(guān)部件進行詳細的計算,確定了決定齒輪互鎖式單缸插銷機構(gòu)工作性能的核心參數(shù)； (2)對齒輪互鎖式單缸插銷機構(gòu)進行動力學仿真,分別考慮各個因素對機構(gòu)核心性能參數(shù)的影響程度,并提取不同因素影響下的結(jié)果,進行對比分析,確定主要影響因素和次要影響因素； (3)依據(jù)上文對機構(gòu)工作過程的影響因素評估結(jié)果,提取主要因素,忽略次要因素,建立了缸銷和臂銷插銷過程的動力學方程,繪制核心性能參數(shù)的變化曲線,并與仿真結(jié)果進行對比,驗證方程的正確性,為工程設(shè)計提供簡單快捷的計算方法； (4)針對所建立的動力學方程的各個參數(shù)進行了分析,確定主要影響參數(shù),繪制缸銷和臂銷插銷時間隨各自驅(qū)動彈簧剛度的變化曲線,為設(shè)計者指明了設(shè)計優(yōu)化的方向； (5)根據(jù)上文指出的方向,針對齒輪互鎖式單缸插銷機構(gòu)的缸銷彈簧,缸銷油缸彈簧,臂銷彈簧以及齒輪齒條傳動機構(gòu)分別進行多目標優(yōu)化,將優(yōu)化后的參數(shù)帶入建立的動力學方程中,提取插銷時間,繪制圖表,比較分析優(yōu)化前后機構(gòu)性能提高的百分數(shù),根據(jù)優(yōu)化結(jié)果,對原始設(shè)計結(jié)構(gòu)進行改進。 綜上所述,本文提出了一套完整的齒輪互鎖式單缸插銷機構(gòu)設(shè)計優(yōu)化方法,為實際工程應(yīng)用提供理論依據(jù),具有指導意義。
[Abstract]:As one of the core components of large tonnage and high performance engineering crane, single cylinder pin telescopic mechanism has been widely applied to telescopic jib cranes at home and abroad in recent years. In order to obtain flexible, safe and reliable telescopic system with convenient maintenance and high telescopic efficiency, many crane manufacturers at home and abroad are actively engaged in in-depth research. Taking the TZM1200t telescopic jib crane developed by Dalian University of Technology and Taiyuan heavy Machinery Group Co., Ltd. As an example, the structural performance of the gear interlocking single cylinder pin mechanism is studied in depth, and a set of relatively complete design calculation is formed. The main work of the parameter optimization method is as follows: (1) the design requirements of the gear interlocking single-cylinder pin mechanism are put forward. Taking the single-cylinder bolt mechanism of the TZM1200t telescopic jib crane as an example, the structure form of the mechanism is determined through analysis. In the principle of transmission, the relevant parts of the whole mechanism are calculated in detail, and the core parameters determining the working performance of the gear interlocking single cylinder pin mechanism are determined. (2) the dynamics simulation of the gear interlocking single cylinder pin mechanism is carried out. The influence degree of each factor on the core performance parameters of the mechanism is considered, and the results under the influence of different factors are extracted, and the main influencing factors and the secondary influencing factors are determined. (3) based on the evaluation results of the influencing factors of the mechanism working process above, the main factors are extracted and the secondary factors are ignored. The dynamic equations of the cylinder pin and the arm pin are established, and the variation curves of the core performance parameters are drawn. And compared with the simulation results to verify the correctness of the equation for engineering design to provide a simple and fast calculation method. (4) the established dynamic equation parameters are analyzed to determine the main impact parameters. Drawing the curve of cylinder pin and arm pin bolt time changing with the stiffness of each drive spring, pointing out the direction of design optimization for the designer; (5) according to the direction pointed out above, aiming at the cylinder pin spring of gear interlocking single cylinder pin mechanism, Cylinder pin cylinder spring, arm pin spring and gear-rack transmission mechanism are optimized with multi-objective, and the optimized parameters are brought into the established dynamic equation, the time of bolt is extracted, and the graph is drawn. The percentage of mechanism performance improvement before and after optimization is compared and the original design structure is improved according to the optimization results. To sum up, this paper puts forward a complete design optimization method of gear interlocking single cylinder pin mechanism, which provides theoretical basis for practical engineering application and has guiding significance.
【學位授予單位】：大連理工大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TH131.6

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本文編號：2155211