Research On The Rotating System Of A 7000m Hydraulic Top Drive Drilling Equipment

As an important strategic resource, oil plays an important role in the national economy. In order to reduce the cost of oil exploration and development, countries around the world are constantly developing new oil development equipment and development of technology.Over the years, it has been to rely on turntable drilling rigs. In recent years, with the continuous development of drilling equipment and technology, in order to better meet the needs of special process wells drilled, top drive drilling rigs has evolved into today’s cutting-edge technology and equipment.In order to meet the development requirements of domestic drilling equipment, this paper proposed a full hydraulic top drive design, designed and researched the entire power system including the hydraulic drive system and mechanical transmission.Firstly, developed hydraulic top drive design parameters, according to the design parameters of the design, completed relevant calculations and component selection. Using AMESim software completed the modeling and simulation of the rotary hydraulic system.Simulated various conditions of the hydraulic system.Secondly, finished the head of the mechanical power inherent characteristic analysis,the excitation frequency(Hydraulic motor torque ripple frequency,gear mesh frequency,gear shaft rotation frequency) and the natural frequency of the power head transmission were compared in order to avoid possible power head drive system resonance.Simultaneous analysis of different forms of head drive power, the difference between its natural frequency.Finally, completed the mechanical power head dynamic analysis to engage the force peak load factor are two factors as evaluation criteria, compare the pros and cons of different power head gear shaft mounting location, obtain optimum gear arrangement position.