Structural Finite Element Analysis of Tower Top of Landing-type Lifting Pole with Double-level Arms

摘要

The landing-type lifting pole with double-level arms is a kind of construction equipment frequently used in erection of large-sized iron tower during the engineering of power transmission line. This equipment lifts heavy load through bilateral symmetry, thus improving the working efficiency. A finite element structural calculation model of tower top of landing-type lifting pole with double-level arms was established according to the actual situation, and this model involved different working amplitude, lifting capacities and unbalanced loading conditions. In addition, the maximum stresses and structural stability coefficients of tower head, lifting arm, draw-bar and rotary tower body were analyzed, and the safety check results of various parts at tower top were obtained. Finally, the design of connection pin of each part at tower top of lifting pole was also proposed.