Circumferential displacement sucker rod tong

A sucker rod tong assembly for fastening together sucker rods to a rod coupling, where the assembly can include a two-stage mechanical drive mechanism. The first stage can connect an upper sucker rod to a lower sucker rod via a rod coupling. The first stage can be limited in mechanical ability to ti...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Richard, Andrew David, Wright, Monte Neil, Miller, Harold James, Richard, David Luis, Carmelo, Donald Nicholas
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A sucker rod tong assembly for fastening together sucker rods to a rod coupling, where the assembly can include a two-stage mechanical drive mechanism. The first stage can connect an upper sucker rod to a lower sucker rod via a rod coupling. The first stage can be limited in mechanical ability to tighten the connection to a pre-set shoulder torque value. The second stage can then be hydraulically and mechanically sequenced, using a linear gear drive mechanism, to rotate a main tong pinion gear that can further rotate the sucker rod connection through a fixed circumferential displacement to a mechanical stop.