Rotating device

A rotating device comprising:

• a housing;
• a variable guide vane module provided on a surface of the housing;
• and
• a housing cover coupled to the housing and covering the variable guide vane module,
• wherein the variable guide vane module is configured to be separable into at least a first module and a second module, and the first module and the second module are coupled to, or decoupled from, each other by a coupling,
• wherein the first module comprises a vane case that has a cylinder shape and that is provided in the housing, and a first link that is coupled on the vane case,
• wherein the second module comprises a shroud case that is seated between the housing and the vane case, and a second link that is provided in the shroud case and is configured to be driven in accordance with driving of the first link,
• wherein the housing cover is configured to expose an opening of the housing by being opened, such that the variable guide vane module being driven and a coupling state of the first link and the second link are identifiable through the opening of the housing from an outside of the rotating device, and
• wherein the first link comprises:
• a main shaft, which is disposed in the housing in a first direction that is perpendicular to an extending direction of the vane case,
• a main link arm, which is coupled to the main shaft and is elongated in a second direction that is perpendicular to the first direction so as to be configured to rotate in accordance with rotation of the main shaft,
• a control arm, which is connected to the main link arm and is elongated in the second direction, and
• a pivot located between an input end and an output end of the control arm, and wherein the pivot directly attaches a portion of the control arm to one end of the vane case and rotatably supports the control arm such that the control arm is configured to rotate around the pivot.