The Design Of The Linear Pumping Unit Of The Automatic Reversing And The Attached Traction

This paper introduces the development level and trend of the pump:ing unit at home and abroad;Analyzes the energy consumption and low efficiency of the reasons for the beam pumping unit;This paper alyzes on non-beam pumping unit is easy to implement long stroke,low flush times,inertial load characteristics of small;The research try to design and development the new oil pumping unit.The pumping unit and power systems analysis,determine the general structure of the pumping unit is new and the basic composition of institutions;Complete with big load and long stroke,low flush times new design of the pumping unit.The pumping unit was designed using steel truss structure;The platform can ensure the installation,the precision of the work,convenient in maintenance and transportation;The weight of the balance weight according to different well or the same location,different load be flexible adjustment,to ensure that the balance of the pumping unit degree;The adjustable clamp device for rail against force balance of derrick provide support;The suspension of the rope simple structure,safe and reliable,which is convenient for operation of oil pumping unit testing.Through the research and development of the pumping unit,using an indirect way traction homework,reduce the motor shaft by multiple;With large diameter than the tractive sheave and improve the service life of steel wire;Adopt the automatic reversing institutions greatly reduces the motor power consumption;The belt type indirect traction institutions,in order to ensure a full use of driving force and prevent rigid impact phenomenon;But by changing driver sprocket vice improve the driving moment;Using low-speed permanent magnet motor torque,save reducer,eccentric counterweight,power curve more reasonable;The hydraulic jack shift institutions and adjustable clamp the rail,meet the need of the YiJi workover and at the same time,improve the stability of the whole machine.In complete general structure scheme,and on the basis of the Lord of the pumping unit of new structure strength,stiffness,deformation and stability analysis.