BLADE INSPECTION APPARATUS

• US 20150036127A1
• Filed: 07/21/2014
• Published: 02/05/2015
• Est. Priority Date: 08/01/2013
• Status: Active Grant

• Current Assignee: Rolls-Royce PLC (Rolls-Royce Holdings Plc)
• Original Assignee: Olympus Corporation
• Inventors: KONOMURA, Yutaka, KOBAYASHI, Eiichi, HORI, Fumio
• Granted Patent: US 9,429,526 B2
• Time in Patent Office: Days
• US Class Current: 356/237.2
• CPC Class Codes: F01D 5/005 Repairing methods or devices
• CPC Class Codes: F05D 2230/72 Maintenance
• CPC Class Codes: F05D 2270/8041 Cameras
• CPC Class Codes: G01N 21/95 characterised by the material or shape of the object to be examined G01N21/89 - G01N21/91, G01N21/94 take precedence
• CPC Class Codes: G01N 21/954 Inspecting the inner surface of hollow bodies, e.g. bores
• CPC Class Codes: G02B 23/2476 Non-optical details, e.g. housings, mountings, supports

Abstract

A blade inspection apparatus inspects a plurality of blades periodically disposed on a periphery of a rotating shaft of a rotor of an engine and rotated on the rotating shaft. The blade inspection apparatus has a borescope having an insertion portion in which an observation optical system is provided, fixtures attached to one of a plurality of external access ports provided on the engine and fixing the borescope, and dedicated for each of the external access ports, and an identification information output portion for outputting identification information for identifying the external access port to which the fixtures are attached.

Claims

1. A blade inspection apparatus for inspecting a plurality of blades periodically disposed on a periphery of a rotating shaft of a rotor of an engine and rotated on the rotating shaft, comprising:

an endoscope having an insertion portion in which an observation optical system is provided;

a fixture attached to one of a plurality of external access ports provided on the engine and fixing the endoscope, and dedicated for each of the external access ports; and

an identification information output portion for outputting identification information for identifying the external access port to which the fixture is attached.

2. The blade inspection apparatus according to claim 1, wherein

the identification information output portion is provided on the fixture;

and

the endoscope has a detecting portion for detecting the identification information outputted from the identification information output portion and outputs the identification information to an external device.

3. The blade inspection apparatus according to claim 2, wherein

the identification information output portion outputs the identification information wirelessly;

and

the detecting portion is a radio receiving circuit for wirelessly receiving the identification information.

4. The blade inspection apparatus according to claim 2, wherein

the identification information output portion is a member having a portion transmitting light and a portion not transmitting light;

and

the detecting portion is a light detector for detecting presence of transmission of the light applied to the portion transmitting light and the portion not transmitting light.

5. The blade inspection apparatus according to claim 2, wherein

the identification information output portion includes a resistor;

and

the detecting portion is a resistance value detection circuit for detecting a resistance value of the resistor.

6. The blade inspection apparatus according to claim 2, wherein

the identification information output portion has a projection portion and

the detecting portion is a switch for detecting presence of the projection portion.

7. The blade inspection apparatus according to claim 2, wherein

the identification information output portion includes a magnet;

and

the detecting portion is a magnetic detector for detecting polarity or presence of the magnet.

8. The blade inspection apparatus according to claim 1, wherein

the identification information output portion is provided on the fixture;

and

the fixture outputs the identification information outputted from the identification information output portion to an external device.

9. The blade inspection apparatus according to claim 1, wherein

the endoscope is integrally constituted with the fixture.