| 摘要 |
The invention relates to an impeller for an axial fan, having an impeller body, which has an outer impeller shell and a carrier disc having a hub for connection for conjoint rotation to a drive shaft. A multiplicity of radially outward-pointing blades, which each have a blade root and a vane, is arranged on the carrier disc. Each blade root has a fastening portion accommodated with positive engagement between two fastening segments each arranged opposite one another on both sides of the carrier disc. The two opposite fastening segments and the carrier disc each have at least two through-holes for accommodating a long sleeve and a short sleeve. The fastening portion can be clamped firmly between the two opposite fastening segments with the aid of screw bolts, in each case inserted through the sleeves, and nuts, wherein each blade root is guided in a respective recess of the carrier disc. |
| 主权项 |
1. Impeller for an axial fan, having an impeller body, which has an outer impeller shell and a carrier disc having a hub for connection for conjoint rotation to a drive shaft, wherein a multiplicity of radially outward-pointing blades, which each have a blade root and a vane, is arranged on the carrier disc, characterized in that each blade root has a fastening portion, which is accommodated with positive engagement between two fastening segments each arranged opposite one another on both sides of the carrier disc, and the in each case two opposite fastening segments and the carrier disc each have at least two through-holes for accommodating sleeves, and the fastening portion can be clamped firmly between in each case two opposite fastening segments with the aid of screw bolts, in each case inserted through the sleeves, and nuts, wherein each blade root is guided in a respective recess of the carrier disc |
