An energy-saving oil pumping unit
A pumping unit, energy-saving technology, applied in wellbore/well components, production fluids, earth-moving drilling, etc., can solve problems such as poor balance effect, faster ascending speed of donkey head, and increased speed of donkey head descending, etc. To achieve the effect of easy replacement
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[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0025] The present invention provides a technical solution, an energy-saving oil pumping unit, such as Figure 1 to Figure 4 As shown, it includes a crank rod 1, one end of the crank rod 1 is fixed with an end head 2, the side wall of the crank rod 1 away from the end head 2 is fixed with a connecting rod connecting shaft 23, and the crank rod 1 is located at one end of the driving groove 22. 3. A counterweight 4 is inserted in the mo...
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