| Automatic vertical drilling technology can achieve anti-inclination fast hitting under complex geological conditions such as high steep structures and high dip formations,reducing drilling costs.Automatic vertical drilling tools are the core of automatic vertical drilling technology.The optimization of vertical drilling tool structure and the analysis of the principle of deflection correction have become hot topics in the field of drilling.The actuator is used as the guiding and deflecting part of the vertical drilling tool.Therefore,it is of great significance for the field application of the automatic vertical drilling tool to carry out the research of the automatic vertical drilling tool actuator.Based on literature research,the research and development status of automatic vertical drilling tools is summarized.It briefly summarizes the analysis method and related research of the vertical drilling tool actuator,and on this basis,analyzes the part of the hydraulic hydraulic differential drilling tool actuator.In order to estimate the steering force of the actuator,this paper analyzes the influencing factors of the actuator performance based on the method of numerical simulation of fluid mechanics,combined with the previous design experience of the vertical drilling tool,the actuator suitable for drilling hydraulic differential vertical drilling tool is obtained mathematical model.The pressure analysis of the actuator of this set of tools shows that the pressure difference between the inside and outside of the drilling hydraulic differential vertical drilling tool is related to the slit length and slit width of the actuator;it is not related to the length of the lateral flow channel and the radius of the lateral flow channel.The acquired actuator data was preliminarily processed.From the perspective of statics,kinematics and dynamics simulation,the movement state of the actuator against the rib was analyzed.The ADAMS software and finite element analysis were used to analyze the deformation,allowable stress and displacement of the wing rib. |