Magnetic coupling for use in gas and liquid environments

Claims

1. A magnetic coupling for use in a gas environment, comprising a concentrically arranged outer driven half coupling, a stationary sealing screen and an inner driving half coupling, characterized in that at the end of the sealing screen, which has the shape of a cup, a coaxially located shaft with a thread at the end is provided, on which a bearing with a one-sided seal, the seal of which faces the inner driving half coupling, a ring, an outer driven half coupling, at least one bearing are installed in turn and are fixed with fasteners screwed onto the thread of the shaft of the sealing screen.

2. A magnetic coupling for use in a gas environment according to paragraph 1, characterized in that the sealing screen has a flat shape, as is customary in end-face magnetic couplings.

3. A magnetic coupling for use in a gas environment according to paragraphs 1 and 2, characterized in that, on the shaft side of the sealing screen, the outer driven half coupling is closed with a plug to prevent abrasive particles from entering the bearing cavity.

4. A magnetic coupling for use in a liquid medium, comprising a concentrically arranged outer driven half coupling, a stationary sealing screen and an inner driving half coupling, characterized in that at the end of the sealing screen, which has the shape of a cup, a coaxially arranged shaft with a thread at the end is provided, onto which a bearing with a one-sided seal, the seal of which faces the inner driving half coupling, a ring, an outer driven half coupling, at least one bearing are installed in turn and are secured with fasteners screwed onto the thread of the shaft of the sealing screen.

5. A magnetic coupling for use in a liquid medium according to paragraph 4, characterized in that the sealing screen has a flat shape, as is customary in end-face magnetic couplings.

6. A magnetic coupling for use in a liquid medium according to paragraphs 4 and 5, characterized in that, on the shaft side of the sealing screen, the outer driven half coupling is closed with a plug to prevent abrasive particles from entering the bearing cavity.

7. A magnetic coupling for use in a liquid medium according to paragraphs 4-6, characterized in that at least one inlet valve for admitting liquid into the bearing cavity is mounted on the outer driven half coupling or on the plug.

8. A magnetic clutch for use in a liquid medium according to paragraph 7, characterized in that the inlet valve is equipped with at least one filter for cleaning the liquid.

9. A magnetic coupling for use in a liquid medium according to paragraphs 4-8, characterized in that at least one outlet valve is installed on the outer driven half coupling or on the plug for partially removing liquid from the bearing cavity that has entered through the inlet valve.

10. A magnetic coupling for use in a liquid medium according to paragraphs 4-9, characterized in that at least one groove or projection in the form of a curved or arcuate line is provided on the outer surface of the sealing screen, which serves to remove liquid during rotation of the outer driven half coupling from the internal cavity formed between the outer driven half coupling and the sealing screen.