With the continuous progress now, many aspects need to be improved. Fans are prone to problems in rated working conditions. Fans need to be produced and manufactured in strict accordance with product standards. Correct maintenance and maintenance are required in the future to increase the service life of the fans. Data detection of wind turbines.

Practical problems

Fan castings are bulky and heavy, unable to move, complex structure, large surface changes, uneven bumps around, and deep holes. On the whole, scanning is very difficult.

On-site shots of fan castings

Using general traditional scanning methods and measuring instruments, the internal details of the casting cannot be captured clearly, and only the external plane can be scanned. However, large-area scanning is also very time-consuming, slow and cannot meet high efficiency.

On-site shots of fan castings

On-site scan of fan castings

Holon  solutions

After understanding the requirements and the workpiece, using the HOLON760 handheld 3D scanner and 3D photogrammetry system (HL-3DP) can obtain high-precision 3D data in a short time, effectively solving the problems of cumulative scanning and measurement.

First of all, the 3D photogrammetry system HL-3DP will first paste the code points on the object before taking the picture with the camera. During the shooting process, images from many different angles are taken, and these images are read into the HOLON3DP software, because the shooting angle of each image is different, and the angle of each image is different through the way of triangulation. After the HOLON3DP software automatically combines these images and performs calculations, the 3D coordinates of the center of each coded point can be obtained.

STL data chart of fan casting

Then use HOLON760 handheld 3D scanner to scan, 7 sets of cross laser lines plus one extra laser line, totaling 15 laser lines, can switch to single laser scanning mode, scan deep holes and dead corners, automatic splicing technology of marking points and self-developed scanning software With ultra-high scanning accuracy and work efficiency, the three-dimensional data of the fan can be obtained quickly for analysis and testing.

STL data chart of fan casting

Comparison and analysis diagram of 3d inspection of fan castings

Comparison and analysis diagram of 3d inspection of fan castings