【摘要】 天井钻机上重要的联接处均采用螺纹联接,其中动力头和机架总成之间采用高强螺钉联接。螺钉的力学性能对钻机的稳定性起到决定性作用,对高强螺钉的受力分析及使用性能应做充分的了解。根据天井钻机施工中螺钉的受力分析,推导出一套计算及校核螺钉强度的实用方法,并对螺钉在工程应用中的注意事项做了简要陈述。更多还原

【Abstract】 The important joints on the raise borer are all threaded, in which high strength screws are used between the power head and the main frame. The mechanical performance of the screw plays a decisive role in the raise borer stability,so force analysis and performance of high strength screw should be fully understood. According to the analysis of the force on the screws during the construction of the raise borer,a set of practical methods for calculating and checking screw strength are derived. In addition, the attention of screws in engineering application is briefly described.更多还原