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目前在支架设计中,通常是把载荷简化到支架的纵向对称平面内进行强度计算,并适当增大安全系数进行结构设计,以适应支架工作的恶劣环境。然而支架在井下工作或接受台架试验时,都要承受各种偏心载荷,这样就使传统计算假设与实际情况相距甚远。为此,寻求更为合理的支架的计算方法是有重要意义的。支架工作时,各立柱的工作阻力可认为是恒定的。但是,顶梁和底座外力的作用点
At present, in the design of the support, the load is usually simplified to the longitudinal symmetry plane of the support for strength calculation, and the safety factor is appropriately increased to design the structure so as to adapt to the harsh environment of the support work. However, when the cradle is working downhole or receiving bench tests, it must withstand various eccentric loads, thus leaving the traditional calculation assumption far away from the actual situation. For this reason, to find a more reasonable method of calculating the stent is of great significance. Bracket work, the column of the working resistance can be considered constant. However, the role of the top beam and base force point