Lifting weight balance beam type oil pump

Abstract

A highly effective, energy-saving, safe, durable loading balance walking beam oil pumping unit. On the overall structure, it uses frame and carriage loading device, removes the heavy load of driving device of crank balance walking beam oil pumping device, so the force of drive parts is smaller and the use life is improved substantially. On the balance mode, it uses loading pulley group balance structure and fore walking beam and driving fore structure, achieves the 'recovering and utilization' of gravity power of polish rod falling smartly, especially solves the key big problem of tracing balance in oil pumping device swabbing process, decreases the mating electric motor capacity more than 50%, decreases driving force substantially. At the same time, it meets the design condition of largestroke parameter. On the design of two perishable key elements of balance hoisting anchor soft connection and crank pin device, it uses special cable wire core rubber belt and crank pin fastening screw nut check device, so the safe performance is improved significantly and the maintenance-free is achieved.

Description

1. Technical field [0001] The invention aims at the problem of high energy consumption of the pumping units in use in the current oil production engineering, and develops a high-efficiency, power-saving, safe and durable pumping unit. 2. Background technology [0002] The crank-balanced beam pumping unit is the mainstream model widely used in oil production engineering. There are two main problems of this machine: ① high energy consumption, low efficiency, and huge waste of electric energy; ② many mechanical failures and large shutdown losses. Facing the reality of resource and environmental pressure in our country, the development of energy-saving and durable pumping units is of great significance to the promotion of economical production models. [0003] "Balanced pumping unit with hoisting pulley block" is a "utility model patent" that I applied on March 14, 2002 and authorized and announced on April 9, 2003, (patent number: ZL02224640.1). After several years of industri...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of high energy consumption and high failure of the "Crank Balanced Beam Pumping Unit" and the design of the "Balanced Pumping Unit with Lifting and Pulley Blocks", the design of the large-stroke structure is limited and the service life of the soft-connected steel wire rope is low. The invention adopts the following technical solutions:

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