Reciprocating rack linear driving oil pumping unit

Abstract

The invention discloses a reciprocating rack linear driving oil pumping unit, which comprises a rack, a walking beam, driving and transmission parts, a unit body part, an air balanced part, an energy storage part and a control part, wherein the rotation of a motor controlled by a controller around a vertical shaft is changed into the rotation of gears around a horizontal shaft by direction changing of a gear transmission box; the gears drive racks in the unit body of the oil pumping unit to perform up-and-down reciprocating linear motion so as to drive a polish rod for oil pumping; and the controller analyzes the operating situation of the oil pumping unit according to a data signal which is measured by a sensor, automatically optimizes and adjusts the stroke and stroke frequency of the oil pumping unit, and can transmit the signal to a production management department for manual remote monitoring control. By adoption of technologies of reciprocating induction motor driving, rack linear driving, real-time monitoring and adjustment, air balance and capacitor energy storage, the reciprocating rack linear driving oil pumping unit is smooth in operation, low in current fluctuation and low in reactive electric quantity loss of the motor, has the advantages of simple mechanism, compact structure, simple and convenient installation, high control, low occupation, light weight, low cost, energy conservation, environmental friendliness and the like, and can be widely applied to low-yield and low-efficiency wells, thickened oil wells and production wells in edge areas.

Description

Technical field [0001] The invention belongs to an oil pumping unit, which is a reciprocating rack linear drive oil pumping unit. Background technique [0002] The invention belongs to an oil pumping unit, a pumping unit driven by a reciprocating induction motor, having a pneumatic balance system, a capacitor energy storage system, and a rack linear drive. [0003] At present, beam pumping units are commonly used at home and abroad. This traditional pumping unit has mature and reliable technology and is widely used. However, it is heavy, difficult to adjust, consumes a lot of power, has poor monitoring and adjustment capabilities for oil wells, and has poor adaptability to complex oil wells such as heavy oil wells and low-yield wells. Summary of the invention [0004] The purpose of the present invention is to provide a new type of pumping unit which can overcome the above shortcomings of the traditional pumping unit and can be widely used. [0005] The pumping unit of the present i...

AI Technical Summary

Problems solved by technology

But it is cumbersome, difficult to adjust, consumes a lot of power, has poor ability to monitor and adjust oil well conditions, and has poor adaptability to complex oil wells such as heavy oil wells and low-production wells.

Images