Turning section of the derrick floor, transfers engine power into turning motion to rotate drill string.
the principal component of a rotary, or rotary machine, used to turn the drill stem and support the drilling assembly. It has a beveled gear arrangement to create the rotational motion and an opening into which bushings are fitted to drive and support the drilling assembly.
A machine over the well bore which transfers the power from the engines to a rotary motion.
The rotating steel platform on the derrick floor with an opening in the center through which the drill pipe and casing must pass. The table is rotated by power transmitted from the drilling engines. In drilling, the kelly bushing fits into the master bushing of the table. As the table rotates, the kelly is turned, rotating the drill column and the drill bit.
A table often used on a milling machine so that rotational arcs can be machined.
a really nice accessory to have for your mill,
Equipment over the wellbore which transfers power from the engines to produce a rotary motion. Via bushings and gears the rotary motion is transferred to the kelly and through to the drill string.
The heavy turntable at the centre of a drilling-rig floor, which is rotated by the main rig power supply, and in turn rotated the kelly.
a flat plate in the drill floor which is turned mechanically at varying speeds and imparting the rotary action to the drill string which passes through its centre.
A rotary table is a precision work positioning device used in metalworking. It enables the operator to drill or cut work at exact intervals around a fixed (usually horizontal or vertical) axis. Some rotary tables allow the use of index plates for indexing operations, and some can also be fitted with dividing plates that enable regular work positioning at divisions for which indexing plates are not available.
