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AssigneeBaker International Corporation
InventorsLarry W. Teel, Donald L. Bailey, Brian K. Davis
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The invention is directed to a connection between the equalizer beam and the walking beam in a walking beam type oil well pumping unit, the walking beam having a tail shaft rotatably mounted generally perpendicular to the longitudinal axis of the beam. The connection comprises an equalizer beam and two support members spaced from one another lengthwise of the equalizer beam and rigidly secured to the beam, each support member having an arm extending outwardly toward the other support member, and each arm having a curved downwardly-facing bearing surfaces adapted to be engaged by a respective end of the tail shaft. A retainer associated with each support member holds its respective end of the tail shaft in engagement with the downwardly-facing bearing surface when forces tending to separate the shaft from the bearing surface are applied to the shaft.
An oil well pumping unit of the type comprising a walking beam having a tail shaft rotatably mounted on one end of the beam generally perpendicular to the longitudinal axis of the beam, an equalizer beam extending generally parallel to the tail shaft, and means for connecting the equalizer beam and the tail shaft characterized in that said means comprises a pair of support members spaced from one another lengthwise of the equalizer beam and being rigidly secured to the equalizer beam, each support member having an integral arm extending laterally outwardly from the support member toward the other support member generally parallel to the equalizer beam and spaced above the beam, said arms having curved, generally downwardly-facing bearing surfaces adapted for engagement by the respective ends of the tail shaft, and retainer means associated with each support member for holding a respective end of the tail shaft in engagement with said downwardly-facing bearing surface when forces tending to separate the shaft from the bearing surface are applied to the shaft.
An oil well pumping unit of the type comprising a walking beam having a tail shaft rotatably mounted on one end of the beam generally perpendicular to the longitudinal axis of the beam, an equalizer beam extending generally parallel to the tail shaft, and means for connecting the equalizer beam and the tail shaft characterized in that said means comprises a pair of support members spaced from one another lengthwise of the equalizer beam and being rigidly secured to the equalizer beam, said support members having opposing faces, each of the opposing faces having a slot therein extending from the rear of the support member forwardly and upwardly, the slot defining an integral arm extending laterally outwardly from the support member toward the other support member generally parallel to the equalizer beam and spaced above the beam, the arm having a curved, generally downwardly-facing bearing surface adapted for engagement by the respective end of the tail shaft, and retainer means associated with each support member for holding a respective end of the tail shaft in engagement with said downwardly-facing bearing surface when forces tending to separate the shaft from the bearing surface are applied to the shaft, said retainer means comprising jam bolts extending through the support members in position to engage the ends of the tail shaft when the tail shaft is engaged by the bearing surfaces.
A connection between an equalizer beam and a tail shaft rotatably mounted near an end of a walking beam in an oil well pumping unit, the connection comprising:
A connection as set forth in claim wherein each support member is generally C-shaped, with upper and lower arms and an opening therebetween, the upper arms of each support member having said downwardly-facing bearing surface, the openings in the support members facing each other to form a space for the tail shaft to pass under the upper arms and engage the downwardly-facing bearing surface on the upper arms.
A connection between an equalizer beam and a tail shaft rotatably mounted near an end of a walking beam in an oil well pumping unit, the connection comprising:
Dependencies are inferred from the claim text.