【摘要】：本文綜述了國內外液壓動力鉗的發(fā)展現(xiàn)狀，分析了傳統(tǒng)液壓動力鉗的基本結構與操作流程，指出了不同類型液壓動力鉗結構設計的利弊，提出了一種新型液壓動力鉗的結構設計方案。 傳統(tǒng)液壓動力鉗的大齒輪上只安裝一層坡板結構，對不同管柱上卸扣時需要更換坡板，效率低、工作強度高。設計的新型液壓動力鉗，采用在液壓動力鉗閉口齒輪體內的圓柱面上安裝三層坡板，每層用螺釘將四塊楔形狀的坡板對稱固定，同層坡板設計的運動軌跡曲線相同；不同層的坡板形狀曲線不同，以充分適應不同管徑的夾持力度和可靠性。通過幾何建模和數(shù)值計算，分別確定了新型液壓動力鉗的三層坡板的曲線；使其都能滿足切徑比要求，保證在上卸扣過程中既不打滑，也不會損壞管柱。 對液壓動力鉗的傳動機構、液壓系統(tǒng)、鉗頭結構進行了分析；提出了液壓動力鉗輸出扭矩測量的可靠方法。本文采取了Solidworks軟件對液壓動力鉗進行了實體建模，并且用HyperMesh軟件對液壓動力鉗的重要零部件進行了有限元分析，得到了相應的結果，為今后液壓動力鉗的繼續(xù)研究提供了有益的指導。 設計的新型液壓動力鉗在鉗口卡緊范圍Φ60mm~Φ380mm內不需拆卸液壓動力鉗更換坡板，卡緊性能好，操作安全，方便，可靠，降低了安全風險，同時也降低了人力勞動強度，提高了工作效率，，對現(xiàn)場作業(yè)具有實際意義。
[Abstract]:This paper summarizes the development of hydraulic power pliers at home and abroad, analyzes the basic structure and operation flow of traditional hydraulic power pliers, and points out the advantages and disadvantages of structural design of different types of hydraulic power pliers. A new structure design scheme of hydraulic power pliers is presented. Only one layer of sloping plate structure is installed on the large gear of the traditional hydraulic power pliers. The slope plate needs to be replaced when unloading the different pipe string, which has low efficiency and high working intensity. A new type of hydraulic power pliers is designed. Three layers of slope plates are installed on the cylindrical surface of the closed gear body of the hydraulic power pliers. The four wedge-shaped slope plates are symmetrically fixed with screws in each layer, and the motion track curve of the same slope plate is the same. The shape curves of different layers of slope plates are different to suit the clamping strength and reliability of different pipe diameters. Through geometric modeling and numerical calculation, the curves of the three-layer slope plate of the new type hydraulic power pliers are determined, which can meet the requirements of the tangential diameter ratio and ensure that there will be neither slippage nor damage to the pipe string in the process of loading and unloading. The transmission mechanism, hydraulic system and clamp head structure of hydraulic power pliers are analyzed, and a reliable method for measuring the output torque of hydraulic power pliers is put forward. In this paper, the solid model of hydraulic power pliers is built by Solidworks software, and the finite element analysis of important parts of hydraulic power pliers is carried out with HyperMesh software, and the corresponding results are obtained. It provides useful guidance for the further study of hydraulic power forceps in the future. The new hydraulic power pliers designed in the clamping range of 桅 60mm ~ 桅 380mm do not need to remove the hydraulic power pliers to replace the slope plates. The clamping performance is good, the operation is safe, convenient and reliable, the safety risk is reduced, and the labor intensity is also reduced. It improves the working efficiency and has practical significance for the field operation.
【學位授予單位】：東北石油大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TH137.5

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