The Research On The Multi-functional Full-hydraulic Top Drive Drilling System

This topic from China Geological Survey Project (Project Number: Branch (2005) 013-14): geophysical parameters measurement-while-drilling systems and rig development.This paper studies the JDD-100 drilling rig main parts - the top-drive system. And compared to conventional drilling device, the top drive drilling method more efficient, safe and reliable. Drilling machinery from the world trend of development, to meet further demand for automated drilling, the top-drive system will become the world's drilling machinery 21 of the main directions of development. In this paper, the use of ADAMS and ANSYS software, respectively, from the dynamics and statics in terms of an analysis of the top drive system, reaching into the high efficiency, reliable operation, the application of a wide range of purposes.The main work in this article:First, this article on the top drive system at home and abroad to develop a comprehensive description and analysis. Introduced the theory of its research, the development of the status quo at home and abroad, top drive theory, as well as the structure of the principle of a typical hydraulic system. And several forms of the summary of a detailed analysis.Second, study the process of top drive system, the establishment of top drive system movement mathematical model. Model designed for a single degree of freedom motion analysis conducted to determine the system's frequency, amplitude and other key parameters.Third, according to the vibration of the top-drive, kinetic analysis carried out, in this based on the virtual prototype has been exciting force, eccentric block centroid locations, and exciting force, such as time-varying parameter curve and realize top drive system of the virtual Prototype analysis of the dynamics simulation.Fourth, the application of ANSYS software system on top of the load-displacement component red hammer to carry out finite element analysis, using the analysis of the top drive system design to meet the application requirements. After analysis, the stress-strain red hammer and other changes to meet the requirements and the production of a prototype for further research provides a theoretical basis.Fifth, the drilling operation carried out experiments and the production of space experiments. Experimental proof of a reasonable structural design of the top drive.This study not only for the top drive system designed to provide a general reference and basis for, at the same time on the top drive to provide the optimal design of the new ideas and possible specific routes, for similar equipment provided a good reference.