| 摘要 |
A counterbalance system for a cantilevered beam pumping unit includes a counterbalance support structure adapted to be mounted in an operating position on the cantilevered beam of the pumping unit. A suspension element is connected to the counterbalance support structure so as to depend from a suspension end of the counterbalance support structure, and a counterbalance weight is connected to the first suspension element in a spaced apart relationship with respect to the counterbalance support structure. A stabilizer device is connected to the counterbalance weight via a first pivot connection and is connected to a structure separate from the counterbalance weight via a second pivot connection.
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