旋转冲击型液压锚杆钻机动力头的设计与研究

发布时间：2018-11-09 20:18

【摘要】：锚杆钻机又称为锚固钻机，是锚杆支护工作中的关键施工设备，，锚杆支护的施工速度和支护质量的好坏很大程度上取决于锚杆钻机。它影响着锚杆支护的质量——锚杆孔的方位、深度、孔径的准确性以及锚杆安装质量，又涉及操作者的人身安全、劳动强度与作业条件等。在对国内外锚杆钻机的现状及发展趋势分析的基础上，针对目前国产锚杆钻机动力头单一旋转式扭矩小，钻进形式单一，不适于岩石等工作介质的不足，提出了旋转冲击型液压锚杆钻机。借助冲击动力学分析和波动力学理论，研究动力头结构参数与冲击性能关系等，研制性能先进的、结构优化的动力头。对回转机构和冲击机构两部分进行设计计算，并借助UG对其进行三维建模和虚拟装配；对锚杆钻机的关键部件进行有限元分析，指导锚杆钻机针对不同的工况，选择适合的工作参数，以提供钻孔精度与钻孔效率。最后对锚杆钻机液压系统进行设计计算；并对液压元件进行选型。本文综合利用多种机械计算机辅助设计技术及分析技术（CAD/CAE），对旋转冲击型液压锚杆钻机进行了虚拟设计与仿真分析。为机械产品的设计提供一个新的思路，对样机的研制有一定的参考价值。
[Abstract]:Anchor drill, also called anchor drill, is the key construction equipment in bolt support. The construction speed and support quality of bolt support depend on the anchor rig to a great extent. It affects the quality of bolt support, such as orientation, depth, accuracy of aperture, installation quality of bolt, safety of operator, labor intensity and working condition, etc. Based on the analysis of the present situation and development trend of the anchor drill at home and abroad, this paper aims at the deficiency of the single rotary torque of the power head of the domestic anchor drill at present, the single drilling form and the unsuitable working medium, such as rock, etc. A rotary impact hydraulic bolt drill is presented. With the aid of impact dynamics analysis and wave mechanics theory, the relationship between the structural parameters of the power head and the impact performance is studied, and a new type of dynamic head with advanced performance and structural optimization is developed. The two parts of rotary mechanism and impact mechanism are designed and calculated, and the 3D modeling and virtual assembly are carried out with the help of UG. Finite element analysis is carried out on the key parts of the anchor drill to guide the anchor drill to select suitable working parameters according to different working conditions in order to provide drilling accuracy and drilling efficiency. Finally, the hydraulic system of anchor drill is designed and calculated, and the hydraulic components are selected. In this paper, the virtual design and simulation analysis of rotary impact hydraulic bolt drilling rig are carried out by using a variety of mechanical computer aided design and analysis techniques (CAD/CAE). It provides a new idea for the design of mechanical products and has certain reference value for the development of prototype.
【学位授予单位】：西安建筑科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU67

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