| 摘要 |
A device for torquing a tubular connection. The device comprises an upper assembly having an upper jaw member, a lower assembly having a lower jaw member, an upper gear for advancing the upper jaw member, and a lower gear for advancing the lower jaw member. The upper jaw member includes a first jaw operatively associated with a first rack, a second jaw operatively associated with a second rack, and a third jaw operatively associated with a third rack. The lower jaw member includes a fourth jaw operatively associated with a fourth rack, a fifth jaw operatively associated with a fifth rack, and a sixth jaw operatively associated with a sixth rack. A method of torquing a first tubular with a second tubular is also disclosed. |
