Slide ring seal assembly secured against disengagement

Abstract

The invention relates to a mechanical seal arrangement comprising a mechanical seal (2) having a rotating sliding ring (3) and a stationary sliding ring (4) defining a sealing gap (5) between the sealing surfaces (30, 40) thereof, a slide ring carrier (6) for holding the stationary sliding ring (4), an axially movable thrust ring (7) arranged on a rear side (43) of the stationary sliding ring (4) between the slide ring carrier (6) and the stationary sliding ring, a pretensioning device (8) arranged between the thrust ring (7) and the slide ring carrier (6) to pretension the stationary sliding ring (4) in the axial direction X-X of the mechanical seal arrangement, and an anti-rotation device (10) to keep the stationary sliding ring (4) rotationally fixed and axially movable, the anti-rotation device (10) having a first transmission device (11) for transmitting force between the sliding ring carrier (6) and the thrust ring (7) and a second transmission device (12) for transmitting force between the thrust ring (7) and the stationary sliding ring (4), and wherein a locking element (13) is arranged on the first transmission device (11) to secure the thrust ring (7) against axial disengagement.

Dependencies are inferred from the claim text.