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YZ—55型牙轮钻机是一种250～380mm孔径的先进穿孔设备,该机达到国外同类型先进水平,居国内领先地位,填补了我国大型露天矿大孔径钻机的空白。YZ—55型钻机是在参照国内外同类钻机特点的基础上,选用高强度低合金钢、高钻架、加撑杆等新颖结构设计,进一步加强了钻架和平台的强度和刚度。为了判定设计的可靠性,为新颖钻机提供科学数据,因此结构强度研究列为技术攻关内容之一。我院对YZ—55型钻机的钻架和平台进行了理论和实验分析。理论分析采用有限单元法,用SAP▽程序在M-150机上计算;实验分析采用电阻应变仪和SONY八通道磁带记录仪、7TO8S讯号分析仪处
YZ-55 type cone drill is a kind of advanced perforation equipment with the diameter of 250 ~ 380mm. This machine has reached the advanced level of the same kind in foreign countries and has taken the lead in the country and filled the gap of the large-diameter large-diameter drilling rig in China’s large open pit mine. YZ-55 drilling rig is based on the characteristics of similar domestic and foreign rigs, based on the selection of high-strength low alloy steel, high-rack, plus pole and other new structural design, to further strengthen the strength and rigidity of the drill rack and platform. In order to determine the reliability of the design, to provide scientific data for the new rig, structural strength research as one of the key elements of technology. Our hospital YZ-55 drilling rig and platform for a theoretical and experimental analysis. Theoretical analysis using finite element method, with SAP ▽ program on the M-150 machine calculation; experimental analysis using resistance strain gauge and SONY eight-channel tape recorder, 7TO8S signal analyzer