Impeller and centrifugal fan
By setting wear-resistant parts on the blades and using automated welding technology, the problem of cracking of the wear-resistant layer during the bending and forming process of the blades has been solved, thereby improving the wear resistance and production efficiency of the blades.
CN224453177UActive Publication Date: 2026-07-03NANTONG DART POLLRICH FAN
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-03
AI Technical Summary
Technical Problem
In the existing technology, the wear-resistant layer of the blade is prone to cracking during the bending and forming process, which leads to the overall cracking of the blade substrate, affecting the service life and increasing the cost of raw materials.
Method used
Multiple wear-resistant sections are provided on the blade, including at least one first wear-resistant layer formed by wear-resistant solder. The welding is automated using a welding robot, and each section is programmed according to the blade shape to ensure that the wear-resistant section does not crack after forming.
Benefits of technology
It extends the service life of the blades, avoids blade scrapping, saves raw material costs, shortens the production cycle, and improves production efficiency.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224453177U_ABST
Abstract
This utility model provides an impeller and a centrifugal fan, relating to the field of fan technology. The impeller includes an inner disk, an outer disk, and multiple blades. Multiple wear-resistant portions are provided on the front sidewalls of the blades, with the front sidewalls facing the rotation direction of the impeller. The wear-resistant portions are welded onto the formed blades, and each wear-resistant portion includes at least one first wear-resistant layer formed by welded wear-resistant solder. By providing multiple wear-resistant portions on the blades, the service life of the blades can be extended. By welding the wear-resistant portions onto the formed blades, the blades can be formed first and then the wear-resistant portions are welded, avoiding the situation in the prior art where cracking of the wear-resistant portions during the forming process leads to overall cracking of the blade substrate, thus preventing blade scrapping, saving raw material costs, shortening the production cycle, and reducing the blade shaping process.
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