The Visualization Of Axial Interval Adjustment Between Stator And Rotor Of Turbodrill

Turbodrill is an important tool in petroleum well-drilling, it's quality of performance has a direct and importance influence on the well-drilling quality, speed and cost. So it has been the target, which is paying close attention of petroleum well-drilling and machinery industry all the time. Because the working environment of the turbodrill is extremely abominable, besides wearing and tearing by the liquid grit of well-drilling while working, bearing of turbodrill bear large pressure, water loads and vibration and impact that produce when chiseling in, it makes bearing wear and tear with higher speed, and wearing and tearing of bearing will cause turbine rotor take place axial relative displacement with stator which makes the under-part axial interval diminished. When axial interval as small as to zero (make rotor of upper class with stator of next class colliding) , it will lead to accident wearing and tearing of the turbine stator with rotor and damage . So the correct regulation of axial interval of turbo rotor and stator determine turbodrill working life . In the course of assembly of turbodrill, because there are more series and part of the turbine, much influence factor, and last assembly is finished in shell , It causes it's difficult to confirm the axial interval relatively accurately. So how confirm turbodrill's rational axial interval has important meanings to improve turbodrill assembly quality and even service life. It's necessary to study a computing technology of axial interval, develop a visual application program of turbodrill axial interval, which has good visualization, high computational speed, and can guide actual turbodrill assemble adjustment.Certainly, the aspects which influence the working life of turbodrill still include the sharing load and wearability of four fulcrum ball bearing pack. In order to improve the design level of the turbodrill , we should pay attention to the studying of structure performance , with the aid of new technologies , such as emulation of the computer ,etc., to solve these problems which are unclear in theory, can't be maken by experiment, and make turbodrill design more scientificThis thesis adopts the progressive method, proceed from the angle of emulation of the computer and Visualization in Scientific Computation, study the axial interval emulation model and emulation procedure of the turbodrill . The deformations of the parts are analysed by ANSYS finite element analytical method and very high in precision , Visual C ++ , advanced visual language , is used in designing program. The concrete work has the following several respects:1. Have introduced the application situation and development prospect of the turbodrill, have recommended the applications region and the advantage of the solving problem of different application software and tool which are used in the solving of axial interval .2. Set up emulation model of bearing pack of turbine sectionWhen the parts of bearing pack receive axial pressure, primitive axial windages change. We need to calculate windages again. Utilizing ANSYS analyse software whose results of calculation have high precision, to single bearing, modeling, meshing, solving, post-processing, we can receive a relation curve of axial force and axial deformation, Having finding a method through which we can calculate the deformation of bearing pack by single bearing's result. At last ,we get the relation of axial force and axial deformation of bearing pack. 3. Visual C++ aiding calculation of axial interval of turbo sectionHaving Proved the ANSYS results'correctness, derived a computing technology about axial deformation of bearing pack, provided bearing pack axial windage distribution map and relation curve of axial force with axial deformation. Having carried on ANSYS to major parts, calculated out axial intervals'distribution situation in the case of different axial force, and maken interval adjustment visualized. Considering the influence caused by processing deviation of parts in above calculation, part deformation after been pressed and bearing windage after been pressed. And we can adjust different dimension deviation and compare results.In this paper setting example by the 165 type turbodrill, setting up emulation model for every major parts. By drawing axial windage picture of bearing pack ands the relation curve of axial displacement and axial force, we can get the conclusion that the windages distribution of 4 fulcrum thrust ball bearings pack. are stochastic and axial forces are pockety in bearing pack. By drawing axial interval distribution, we an know the whole distribution situation of axial interval. Finally , from animation show ,we may not only know interval change process , but also have a visual knowledge for the assembly process of turbodrill .Above result shows that the emulation algorithm of axial interval of turbo section which is established in this paper is correct, at the same time, also show that it has direct application value for reducing adjusts difficulty , raising the assembly quality of whole machine and foreseeing the working life of turbine section correctly.