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Rotary table (#20) rotates, along with its constituent parts, the kelly and kelly bushing, the drill string and the attached tools and bit. Shale shaker (#2) separates drill cuttings from the drilling fluid before it is pumped back down the wellbore. Stand (#16) is a section of 2 or 3 joints of drill pipe connected and stood upright in the ...
Rotary stages use similar 2 parts, direct drive motor, including a stationary coil armature and a moving magnetic rotor. feedback - Typically high resolution encoder, optical, magnetic or captative, analog or digital, linear or rotary, absolute or Incremental encoder with index mark for homing.
The Scherbius Drive is an electrical drive system invented by Arthur Scherbius, a German engineer known for his work in electrical engineering and cryptography (he also invented the Enigma machine). This drive system is primarily associated with controlling the speed of electric motors , particularly asynchronous (induction) motors.
Rotary transformers are often used instead of slip rings in high-speed or low-friction environments. [3] A slip ring can be used within a rotary union to function concurrently with the device, commonly referred to as a rotary joint. Slip rings do the same for electrical power and signal that rotary unions do for fluid media.
The cam can be seen as a device that converts rotational motion to reciprocating (or sometimes oscillating) motion. [clarification needed] [3] A common example is the camshaft of an automobile, which takes the rotary motion of the engine and converts it into the reciprocating motion necessary to operate the intake and exhaust valves of the cylinders.
The exciter winding is located on the top; it is a coil of a turning (rotary) transformer. This rotary transformer induces current in the rotor without wires or brushes to provide a direct electrical connection. The two other windings are on the bottom, wound on a lamination.
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A rotary union is a union that allows for rotation of the united parts. It is thus a device that provides a seal between a stationary supply passage (such as pipe or tubing) and a rotating part (such as a drum, cylinder, or spindle ) to permit the flow of a fluid into and/or out of the rotating part.