Fastening device for mounting air inlet channel maintenance equipment

Abstract

The invention relates to a fastening device for mounting air inlet channel maintenance equipment. The fastening device comprises a positioning clamping plate, a compacting assembly and a locking assembly, wherein the positioning clamping plate adopts a U-shaped structure and cooperates with the side wall of an air inlet channel in an inserting manner; the compressing assembly comprises a compacting arm, a connecting bridge arm and a compacting plate; one end of the compacting arm is hinged to the positioning clamping plate, and the other end of the compacting arm is connected with the positioning clamping plate through the locking assembly; the middle part of the connecting bridge arm is hinged to the middle part of the compacting arm; two ends of the connecting bridge arm are hinged to the compacting plate; compacting plate avoiding holes are formed in the positioning clamping plate; the compacting plate penetrates through the compacting plate avoiding holes to be in contact with theside wall of the air inlet channel; a maintenance equipment adapter seat is arranged on the side opposite to the compacting plate avoiding holes, of the positioning clamping plate; the locking assembly comprises a locking plug, a fixed seat and captive setscrews; the fixed seat is fixedly connected with the positioning clamping plate; the locking plug penetrates through the compacting arm to be inthreaded connection with the fixed seat; downward pressure is exerted on the compacting arm through the locking plug; and the rotation freedom degree of the locking plug is limited through the captive setscrews, when the maintenance equipment is fastened and mounted, an original structure of an engine cannot be damaged.

Description

technical field [0001] The invention belongs to the technical field of aero-engine maintenance, and in particular relates to a fastening device for installing air intake maintenance equipment. Background technique [0002] When the performance of an aero-engine is restored, it is sometimes necessary to fix the maintenance equipment to the intake duct. At present, there are two common methods for installing maintenance equipment on the intake duct at home and abroad. The first is to pre-install the maintenance equipment on the outer wall of the intake duct. The second is to add threaded holes on the front cone part of the compressor of the engine. [0003] The above two methods have disadvantages. The first method needs to modify the existing air inlet of the engine, and the second method needs to modify the compressor nose cone of the engine. Therefore, both methods will destroy the original structure of the engine. At the same time increase engine maintenance costs. Cont...

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Problems solved by technology

[0003] The above two methods have disadvantages. The first method needs to modify the existing air inlet of the engine, and the second method needs to modify the compressor nose cone of the engine. Therefore, both methods will destroy the original structure of the engine. Increased engine maintenance costs

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