Grounding gun installed on rotating shaft

Abstract

The invention discloses a grounding gun installed on a rotating shaft. The grounding gun is connected with a steering support on the rotating shaft and comprises a first supporting plate; a fasteningnut connected with a unit large cover bolt of the rotating shaft is connected below one end of the first supporting plate, and the other end is connected with a second supporting plate; the upper endof the second supporting plate is connected with a steel pipe; a through long-strip-shaped hole is axially formed in the middle of the pipe wall of the steel pipe; a spring is arranged in the steel pipe; a first spring seat and a second spring seat are respectively arranged at two ends of the spring; the other side of the second spring seat is connected with a graphite rod; an adjusting sleeve capable of axially sliding sleeves the outer wall of the steel pipe; a radial locking screw hole is formed in the adjusting sleeve; a locking bolt is connected to the radial locking screw hole, a positioning nut is connected to the radial side of the outer wall of the adjusting sleeve; a screw rod is arranged on the positioning nut; the end of the screw rod is connected with one end of a connecting rod; the other end of the connecting rod penetrates through the long-strip-shaped hole and then is connected with the first spring seat; and a rotating wheel facilitating rotation is arranged at the tail end of the screw rod.

Description

technical field [0001] The invention relates to a grounding gun installed on a rotating shaft, and belongs to the technical field of induction electric grounding equipment for rotating rotors. Background technique [0002] At present, some rotating mechanical equipment driven by steam will generate induced potential (voltage) on the rotating shaft when rotating due to its own mechanical or electrical characteristics. If the voltage relief system does not work properly or is not handled, the voltage will find an alternate path to ground, and the corresponding metal body will become a ground conductor for the induced voltage. Very typical is the bearing (bearing bush) or seal of the rotor, which is prone to arcing or electrostatic discharge. These arcs will damage the metal surface and increase the normal operation of the sealing gap between the components. If it is not handled in time, the bearing (bearing bush) and the seal will gradually be damaged, and the dynamic charact...

AI Technical Summary

Problems solved by technology

However, the existing grounding brushes have problems such as high cost, complicated installation, short service life, high safety risks for online maintenance and replacement, which in turn affect their normal operation, bury many hidden dangers for the equipment, and lead to production reduction and burden reduction.

Images