Drum type - poor balance pumping unit

Abstract

A drum-type-balancing different pumping unit comprises a tower four-column leg sliding way, a main unit platform, a hydraulic oil cylinder, an oil cylinder front end movable pulley, an oil cylinder rear end movable pulley, a homogenous roller, a balance weight, a pumping rod and a hydraulic pump station. The main unit platform is arranged above the tower four-column leg sliding way. The homogenous roller and the hydraulic oil cylinder are arranged on the main unit platform. The front end and the rear end of a through piston rod of the hydraulic oil cylinder are connected with the oil cylinder front end movable pulley and the oil cylinder rear end movable pulley respectively. A roller driving chain wheel is installed at one end of a roller main shaft. The front end of the driving chain is wound around the oil cylinder front end movable pulley, and the rear end of the driving chain is wound around the oil cylinder rear end movable pulley and locked through a chain locking device. The balance weight is installed on the tower four-column leg sliding way through a balance weight rolling wheel. The balance weight is connected with a balance weight suspension rope. The balance weight suspension rope is wound around a rear supporting wheel. A pumping rod suspension rope is wound around a front supporting wheel and fixed to a homogenous roller suspension rope pressing plate. The drum-type-balancing different pumping unit is efficient and saves energy, the mechanical efficiency utilization rate is 95% or above, and electricity is saved by 70-80% relatively.

Description

technical field [0001] The invention relates to the technical field of oil extraction machinery in oilfields, in particular to a drum type-poor balance pumping unit. Background technique [0002] The pumping unit is the main equipment for oil extraction. At present, the beam pumping unit has become the main equipment for oil production in the oil field due to its simple structure, durability, convenient use and applicable scope. The beam pumping unit adopts crank balance, accounting for about 80% of the total number of oil machines, the disadvantages are high energy consumption, low efficiency, high failure rate, large shutdown loss, stroke adjustment and balance adjustment must be coordinated by a crane, difficult operation, and serious waste of power resources. Contents of the invention [0003] The technical problem of high energy consumption and large stroke is to be solved by the present invention, which is to provide a hydraulically driven balance weight balance, whi...

AI Technical Summary

Problems solved by technology

[0002] The pumping unit is the main equipment for oil extraction. At present, the beam pumping unit has become the main equipment for oil production in the oil field due to its simple structure, durability, convenient use and applicable scope. The beam pumping unit adopts crank balance, accounting for about 80% of the total oil machine, the disadvantages are high energy consumption, low efficiency, high failure rate, large shutdown loss, stroke adjustment and balance adjustment must cooperate with cranes, high difficulty of operation, serious waste of power resources

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