Energy-saving type oil pumping unit with balance automatically adjusted by liquid
The invention relates to an energy-saving type oil pumping unit with balance automatically adjusted by liquid. The energy-saving type oil pumping unit comprises an oil pumping unit base, a bracket, a bracket shaft, a walking beam, a speed reduction box, a crank, a balance weight, a connecting rod, a...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to an energy-saving type oil pumping unit with balance automatically adjusted by liquid. The energy-saving type oil pumping unit comprises an oil pumping unit base, a bracket, a bracket shaft, a walking beam, a speed reduction box, a crank, a balance weight, a connecting rod, a tail shaft, a distribution box and a driving motor. The energy-saving type oil pumping unit is characterized in that the tail part of the walking beam and the bracket are respectively provided with a balance adjusting water tank (1) and a water storage tank (8); the water tanks are respectively provided with a water reducing pump (2) and a water adding pump (9) inside and are communicated with each other through a water adding pipe (2) and a water reducing pipe (4); according to the balance condition of the currents of the up and down strokes of the oil pumping unit, a control box (12) arranged on the distribution box can automatically control the water pumps to add or reduce water for the balance adjusting water |
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