3-ROLLER TYPE TORQUE WRENCH SYSTEM

摘要

The present invention relates to a three-roller structure type torque wrench system. A first roller and a second roller come in contact with the outer peripheral surface of a drilling pipe after moving to the outer peripheral surface of the drilling pipe in a linear direction. A third roller is configured to rotate when coming in contact with the outer peripheral surface of the drilling pipe. Accordingly, a size range of the drilling pipe capable of performing an operation to couple and separate the pipe is significantly wider than a conventional product and is universally used within a diameter of Ø 60 to Ø 230. The present invention enables drilling pipes in various sizes to be coupled and separated by a single apparatus, thereby significantly reducing equipment purchase cost.