The conductive wire is U-shaped and is fixed by epoxy resin between the conductive wire and the slip ring wire plate, the conductor and the slip ring wire plate. When the conductive wire is installed, it is immobilized with epoxy resin once. After the wire and conductive wire are welded, the welding joints and lead grooves are fixed with epoxy resin adhesive. The thickness of the adhesive is not higher than that of the outer side of the slip ring plate, so that the outer side of the slip ring plate forms a closed whole, which improves the connection fastness and sealing performance. Large bearings and small bearings are respectively arranged between the upper and lower ends of the main shaft body and the sliding ring plate, and the large bearings and small bearings are all ball bearings. Make the overall rotating torque of the conductive slip ring smaller, smoother rotation, sealed bearing also has to prevent the slip ring from rotating wear and some powder into the ring, to avoid the impact of bearing rotating torque. The center of the central shaft body is provided with a central shaft outlet line corresponding to the conductive ring one by one, and the central shaft outlet line is drawn out from the top of the central shaft body.

    The wire and the shaft outlet are all silver plated Teflon heat-resistant conductors, and the conductive rings are copper rings. Good electrical conductivity, high temperature resistance, through a lot of precise signals, and in a long period of force rotation process does not destroy the fastness of the insulation layer. High strength alloy coatings can also be used at contact points to make them have good conductivity and long service life. The outer wall of the shell is provided with an installation flange, and more than three mounting holes are arranged on the mounting flange. Through the flange, the conductive slip ring can be fixed on the external equipment, and the installation is convenient and firm. The utility model has the advantages of small volume, small rotating torque, compact structure, firm connection, good sealing performance, good high temperature resistance, high conductive precision and long service life.