Walking beam type electric manually-balanced pumping unit

Abstract

The invention disclosed a walking beam type electric manually-balanced pumping unit, relating to the technical field of walking beam type pumping units. The walking beam type electric manually-balanced pumping unit comprises a motor, a speed reducer, a crank, a connecting rod, a walking beam, a bracket, a horse head and a base. The motor, the speed reducer and the bracket are fixedly arranged on the base, a power output shaft of the speed reducer is provided with the crank, the crank is hinged with the lower end of the connecting rod, the walking beam capable of swinging up and down is hinged at the top end of the bracket through a middle bracket bearing block, the upper end of the connecting rod is hinged with the left part of the walking beam, the horse head is fixedly arranged at the right end of the walking beam and is provided with a polished rod eye, and a suspension arm is arranged at the left end of the walking beam. According to the walking beam type electric manually-balanced pumping unit disclosed by the invention, the structure is reasonable and compact, and the use is convenient; in addition, a movable adjustable counterweight device can move forwards and backwards on the suspension arm by an adjustable counterweight device driving device, thus the moment of a weight box is changed, the balance on a suspension point load is realized, and the efficiency and the effect of balance adjustment of a whole machine are greatly improved.

Description

technical field [0001] The invention relates to the technical field of beam pumping units, and relates to a beam pumping unit with electric manual balance adjustment. Background technique [0002] The existing beam pumping units mainly include: conventional beam pumping unit, front beam pumping unit, offset beam pumping unit and special-shaped beam pumping unit, etc. The pumping unit generally includes a donkey head, a beam, a bracket, a connecting rod, a base, a crank, a balance device, a reducer, a power machine and a rope hanger. The bracket, the reducer and the power machine are fixedly installed on the base. On the bracket, one end of the connecting rod is hinged on the crank of the reducer, and the other end of the connecting rod is hinged on the beam, thus forming a four-bar linkage mechanism. The donkey head is installed on the front end of the beam, and the rope hanger is installed on the on the head. There are generally three types of balance methods: crank balan...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a beam-type electric manual balance pumping unit, which overcomes the above-mentioned deficiencies in the prior art and can effec

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