【摘要】：履帶起重機是現代工程建設中最為常見的流動式起重機之一,而力矩限制器則是履帶起重機安全監(jiān)控系統(tǒng)中的最為核心的裝置。隨著履帶起重機的作業(yè)安全性和可靠性要求越來越高,配套的力矩限制器自身精度的要求也越來越高。 本文以大連理工大學與上海派芬自動控制技術有限公司聯(lián)合開發(fā)的履帶起重機力矩限制器工程項目為背景,提出了履帶起重機最為常見的幾種力矩限制器核心算法,進而通過現場試驗進行驗證,最后針對小型履帶起重機與中大型履帶起重機的力矩限制器算法分別進行理論修正。論文中的主要工作和研究成果具體如下： (1)針對履帶起重機臂架系統(tǒng),引入了鐵木辛柯(一譯鐵摩辛柯)梁理論與格構式構件等效慣性矩法,對履帶起重機的臂架模型進行簡化,同時對履帶起重機臂架的受力狀況進行具體分析。 (2)對于小型履帶起重機,通過鐵木辛柯梁理論和格構式構件等效慣性矩法,對臂架根部角度進行修正,從而達到提高算法精度的目的,并通過80噸履帶起重機現場驗證性試驗,論證算法及算法修正理論的可行性。 (3)對于中大型履帶起重機,通過鐵木辛柯梁理論和格構式構件等效慣性矩法,同時對臂架根部角度與臂架頭部角度進行修正,進而得到修正后的臂架角度計算值,最終達到提高算法精度的目的,并通過750噸履帶起重機現場驗證性試驗,論證算法及算法修正理論的可行性。 (4)通過兩次現場驗證性試驗,進一步分析和驗證了臂架幅度,臂架長度對履帶起重機力矩限制器算法精度的影響。 本文著重研究了履帶起重機力矩限制器核心算法及算法修正理論,該研究成果已初步應用于實際產品開發(fā)中,并為指導履帶起重機力矩限制器算法的設計與完善提供了理論依據。
[Abstract]:Crawler crane is one of the most common mobile cranes in modern engineering construction, and torque limiter is the most important device in crawler crane safety monitoring system. With the requirements of safety and reliability of crawler cranes becoming higher and higher, the precision of the matching torque limiter is becoming more and more high. Based on the project of torque limiter of crawler crane developed jointly by Dalian University of Technology and Shanghai Piffin automatic Control Technology Co., Ltd., this paper puts forward some common core algorithms of torque limiter for crawler crane. Finally, the torque limiter algorithms of small crawler crane and medium and large crawler crane are modified in theory. The main work and research results are as follows: (1) in view of the crawler crane boom system, the theory of Temmoxinko beam and the equivalent moment of inertia method of lattice members are introduced. The jib model of crawler crane is simplified, and the stress condition of crawler crane jib is analyzed concretely. (2) for the small crawler crane, the equivalent moment of inertia of track-crane is obtained by the theory of Timuxinko beam and the equivalent moment of inertia of lattice structure. In order to improve the accuracy of the algorithm, the angle of arm root is corrected, and the field verification test of 80 ton crawler crane is carried out. The feasibility of the algorithm and algorithm correction theory is demonstrated. (3) for medium and large crawler cranes, the method of equivalent moment of inertia of lattice components and the angle of the root of boom and the angle of head of boom are modified by the theory of Temocco beam and the equivalent moment of inertia method of lattice components. Then, the revised jib angle calculation value is obtained, and the accuracy of the algorithm is improved finally, and the field verification test of 750 ton crawler crane is carried out. The feasibility of the algorithm and algorithm correction theory is demonstrated. (4) the influence of boom amplitude and arm length on the precision of moment limiter algorithm of crawler crane is further analyzed and verified by two field verification tests. In this paper, the core algorithm and algorithm correction theory of torque limiter for crawler crane are studied. The research results have been applied to the actual product development. It provides a theoretical basis for the design and improvement of torque limiter algorithm for crawler crane.
【學位授予單位】：大連理工大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TH213.7

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