Portable fault detection apparatus for macro-axis center hole

Abstract

The invention discloses a portable macro-axis center hole fault detection device comprising a center hole plug puller, a polishing and detecting integrated driving device and detection equipment, wherein the polishing and detecting integrated driving device comprises an electrical control cabinet, a universal transition board, a guide rail frame, an axial driver, a peripheral driver, a guide rod, a soap lye pump and an actuating mechanism; and the electric control cabinet automatically controls pneumatic polishing, grinding, fault detection, and the like. The invention has multiple functions such as electric honing and fine grinding, pneumatic rapid grinding and grinding the fault, ultrasonic wave detection, vortex endoscope joint detection, and the like, can rapidly pull out a center hole plug, has high degree of automation, is portable, is installed in one step, and can finish the working procedures of surface grinding, fault detection, detect grinding and treating, and the like.

Description

technical field [0001] The invention relates to a portable flaw detection device for a center hole of a large shaft, which integrates multiple functions such as drawing a center hole plug, pneumatic grinding, electric honing and fine grinding, automatic detection, and pneumatic grinding to eliminate defects. Background technique [0002] There are metallurgical defects in large shafts such as steam turbines and generator rotors forged from steel ingots, and the metallurgical defects are mostly distributed along the centerline of the large shaft. Therefore, the axial full-length center hole is used to eliminate defects. However, due to the white Metallurgical defects such as dots, segregation, inclusions and pores have a certain degree of dispersion, so it is difficult to completely remove the defects in the boring, and there are often defects remaining on the surface or near the surface of the center hole. The rotors of steam turbines and generators are high-speed rotating p...

AI Technical Summary

Problems solved by technology

[0002] There are metallurgical defects in large shafts such as steam turbines and generator rotors forged from steel ingots, and the metallurgical defects are mostly distributed along the centerline of the large shaft. Therefore, the axial full-length center hole is used to eliminate defects. However, due to the white Metallurgical defects such as spots, segregation, inclusions and pores have a certain degree of dispersion, so it is difficult to completely remove the defects in the boring, and there are often defects remaining on the surface or near the surface of the center hole

Low efficiency, long drawing time, and limited by on-site cooperation conditions

[0010] It can be seen from the above that the two grinding devices have shortcomings, and the performance cannot meet the requirements of the site; the detection and grinding each use a set of driving devices, which cannot be used interchangeably. The equipment is heavy and complicated, and it is inconvenient to carry and use.

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