An antistatic conductive device

Abstract

The invention discloses an anti-static conductive device. The device comprises an adjusting nut, a circular pipe, a locking nut, a carbon rod, a base, a spring and a pedestal, wherein the outer wall of the circular pipe is provided with external threads I; the locking nut and the adjusting nut are matched with the external threads I and are used for fixing the circular pipe to an end cover at the front end of a turbine bearing box; the adjusting nut is positioned in the bearing box, and the locking nut is positioned on the outer side of the bearing box; the pedestal is arranged in the circular pipe and is positioned at one end on the outer side of the bearing box; the base is arranged in the circular pipe and is in sliding fit with the inner wall of the circular pipe; the spring is arranged between the base and the pedestal in the circular pipe; the carbon rod is supported by the base, extends out of one end of the circular pipe in the bearing box and is in contact with a central hole of the rotor after extending out of the circular pipe; the end, positioned in the bearing seat, of the circular pipe is provided with a circular ring; the inner circular diameter of the circular ring is greater than the diameter of the carbon rod and the diameter of the base. The device is arranged on the end cover at the turbine front end of the baring box, and the carbon rod is in contact with the central hole of the rotor, so that the rotor, the carbon rod and the end cover form a passage, and an effective grounding effect is achieved.

Description

technical field [0001] The invention belongs to the field of chemical machinery equipment, and in particular relates to an antistatic conductive device. Background technique [0002] During the working process of the rotor, the main rotating part of some power machinery and working machinery, charge accumulation is prone to occur on the surface of the rotor. When the charge accumulates to a certain extent, electrostatic discharge will occur between the stator and the rotor. The rotor is insulated from the bearing by an oil film when it rotates at high speed. As long as the rotor part has resistance to the ground, such as oil film resistance, contact resistance, etc., once the rotor is electrified, a voltage to the ground can be established. When the voltage rises to a certain value, the insulation path will be broken down in the area of ​​minimum resistance, and spark discharge will occur. As a result of electric spark discharge, a local high temperature is generated in the...

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Problems solved by technology

Although the anti-static device of this structure can discharge static electricity to the shell to a certain extent, there are still many problems, such as high process requirements, and accurate calculation of the thimble and rotor spindle to determine the best discharge gap; If it is damaged during use, only the entire thimble can be replaced, which makes the maintenance cost high

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