Securing device and method for operating a securing device

A securing device for a rotatably mounted object comprising:

• at least one receiving unit, which is fixed against rotation on a first component of the object,
• at least one clamping unit which is fixed against rotation to a second component of the object, which manually or by means of a rotary drive is moveable relative to the first component via a rotatably mounted joint about a rotational and/or swivel axis via a rotationally mounted joint, and
• at least one drive unit through which the clamping unit is able to be transferred from a release position, in which the first component and the second component are released for rotation relative to each other, parallel to the rotational and/or swivel axis to a clamping position, in which the clamping unit frictionally and/or non-positively engages in the receiving unit, and the first component and the second component are fixed relative to each other against rotation about the rotary and/or swivel axis,
• wherein the at least one receiving unit comprises at least one recess extending concentrically to an axis of rotation and/or swivel and extending in the direction of the axis of rotation and/or swivel, the at least one recess comprising a receiving section, in particular of funnel-like design, on a side facing clamping means of the clamping unit,
• wherein the at least one clamping unit comprises the at least one clamping means which is able to be arranged such that the clamping means is able to be moved into the recess and is able to be arranged such that the clamping means bears directly in a frictional and/or non-positive manner and, on a side facing the recess of the receiving unit, comprises a guide section, in particular a tapering guide section, and
• wherein the drive unit comprises at least one pneumatic, hydraulic and/or mechanically active locking means which fixes the at least one clamping means in the release position.