Sucker rod tool

A sucker rod tool adapted to torque an upper sucker rod relative to a lower sucker rod, comprising:

• a tong housing;
• an upper jaw rotatably coupled to said tong housing and being adapted to engage said upper sucker rod;
• a motor mounted to said tong housing and coupled to said upper jaw by way of a drive train, said motor being adapted to rotate said upper jaw relative to said tong housing;
• a backup wrench coupled to said tong housing and being adapted to engage said lower sucker rod, said backup wrench being moveable relative to said tong housing between a torqued position and a relaxed position;
• a switch system having a first portion substantially fixed relative to said tong housing and a second portion being adapted to engage said backup wrench as said backup wrench approaches said torqued position, wherein said switch system changes from a normal state to an actuated state upon said backup wrench exerting a predetermined force against said second portion of said switch system;
• and
• a counter that measures the amount of rotation of said upper jaw by sensing movement of at least one of said motor, said drive train, and said upper jaw.

A sucker rod tool adapted to torque an upper sucker rod relative to a lower sucker rod, comprising:

• a tong housing;
• an upper jaw rotatably coupled to said tong housing and being adapted to engage said upper sucker rod;
• a motor mounted to said tong housing and coupled to said upper jaw by way of a drive train, said motor being adapted to rotate said upper jaw relative to said tong housing;
• a backup wrench adapted to engage said lower sucker rod and being moveable relative to said tong housing between a torqued position and a relaxed position;
• a pin that pivotally couples said backup wrench to said tong housing with said backup wrench being able to slide in an axial direction parallel to a longitudinal centerline of said pin;
• a spring coupled to said tong housing and being adapted to urge said backup wrench toward said relaxed position;
• a switch system having a first portion substantially fixed relative to said housing and a second portion being adapted to engage and move with said backup wrench as said backup wrench approaches said torqued position, wherein said switch system changes from a normal state to an actuated state upon said backup wrench moving from said relaxed position to said torqued position regardless of any hydraulic pressure of any hydraulic fluid that may happen to circulate through said sucker rod tool, said motor being responsive to said switch system such that said motor rotates said upper jaw a predetermined amount after said switch system changes from said normal state to said actuated state;
• and
• a counter that measures the amount of rotation of said upper jaw by sensing movement of at least one of said motor, said drive train, and said upper jaw.