Loading patent…
AssigneeNo. 3 Machine Tool Plant of the Xinjiang
InventorsXiangyun Ji, Shengeun Yu, Renquan Luo, Weidong Zhao, Yuzhen Wei, Wuanjiany Zhang
Estimating the term…
A downward offset barbell type walking beam compositively balance oil pump, in which at the rear end of the walking beam is mounted a downward offset barbell type balancing device consisting of a shoe plate, a cross shaft and balancing pieces, retains most of the structure of the conventional walking beam oil pump, and has a compact structure, a wide range of moment change, an advantage of saving electricity to a degree of more than 40 percent, and is safe and reliable for operation. The present invention can be applied to the renovation of variety of conventional walking beam oil pumps, used in oil fields, outphase crankshaft oil pumps and walking beam compositively balance oil pumps for the purpose of energy-saving or of promotion of the capacity for oil extraction of the above-mentioned oil pumps.
A downward offset barbell walking beam compositively balanced oil pump, is characterized in that, at the rear end of the walking beam (1) is mounted a downward offset barbell balancing device comprising a shoe plate (2), a cross shaft (3) and balancing pieces (4), in which the shoe plate (2) is mounted at and fastened to the lower part of the end of the walking beam (1);
Dependencies are inferred from the claim text.