Paddle wheel with an unlocking device and method for swiveling blades of a paddle wheel

摘要

The invention relates to a bucket wheel (10) with a bucket wheel frame (18), a plurality of buckets (12) attached to the bucket wheel frame (18), the buckets (12) being pivotable on the bucket wheel frame (18) about a pivot axis (16). are arranged, wherein each blade (12) has a holding device (20) and is arranged by means of the holding device (20) on the impeller frame (18) and the holding device (20) is designed such that the blades (12) on the impeller frame (18) in one to lock the first pivoting position (I) or a second pivoting position (II) in order to move the impeller (10) in a first direction of rotation with the blades (12) in a first pivoting position (I) and in an opposite second direction of rotation with the blades (12) to operate in a second swivel position (II), the paddle wheel (10) having an unlocking device (14) for moving the holding device (20) from a holding position in which the holding device device (20) prevents pivoting of the blade (12) about the pivot axis (16), is in a released position in which the holding device (20) allows pivoting of the blade (12) about the pivot axis (16), so that the blades (12) in the released position of the holding device (20) are moved by gravity from the first pivot position (I) to the second pivot position (II).