Applied Research On Crosshead Of The3NB1300C Drilling Pump

The drilling pump is one of the three function part of drilling rig,it carrys the rocky scrap from the bottom of pump and supply the power to the power drill of the bottom.The developing of the industry of oil need higher demands to the pump. It mainly about the pressure of the pump is higher and higher, the power is bigger and bigger, while the cost of the make and keep in repair is smaller and smaller, and the volume and weight cannot be too high,the fluctuations of the flow cannot be too big. At present, the triplex reciprocating is widespread used. Although the triplex pump pressure and flow to meet the basic needs on the needs of modern drilling, there are shortcomings as it use Crank and Connecting Rod Drive. the weight is big, the the fluctuations of the flow is big, while the power is low, and the life of the function part is short.all these Incompatible with the modern drilling rig who is Energy efficient and Fast-moving.China’s drilling pump technology and research have greatly improved than in the past but there are still large gaps with the international standards. Many of the parameters of drilling pumps which foreign country used many years ago, can only meet the boring basically requirements. By consulting a large number of papers, we hold that, in order to improve and optimize the structure of mud pump, improve the performance, it is necessary to the key parts of the drilling pump power-crosshead were analyzed. The use of advanced modern design method and powerful computer aided analysis software for analysis, a solid model, crosshead parts static and dynamic, sports analysis and virtual load simulation, this part and the strength, stiffness and stability are make evaluation, draw the conclusion.This paper pointed3NB1300C mud pump research for crosshead,3NB1300C drilling pump is horizontal three cylinder single function reciprocating piston pumps, its power is driven by the crankshaft, connecting rod, one word gear, crosshead, dielectric rod, the piston components. The power is provided by electricity Motor, and driven by the pistons.This paper first summarized the current drill, drilling pump and current situation of the development of the crosshead, and then from the aspects of kinematics and dynamics3NB1300C drilling pump structure, after SOLID WORKS pump key components are3d modeling and virtual assembly, we use of the software, in Ansys software of the loading test, and through the finite element analytic method simulation results. Then constraint mode and free modal analysis is made, calculation of natural frequency and the corresponding crosshead the vibration model, ultimately for the structure of the crosshead judge rationality and evaluation.