Puller type special disassembling and assembling tool for horizontal stabilizer connecting pin of helicopter

Abstract

The invention discloses a puller type special disassembling and assembling tool for a horizontal stabilizer connecting pin of a helicopter. The main structure of the special disassembling and assembling tool is a U-shaped groove, and a U-shaped opening is formed in the groove wall of one side of the U-shaped groove; two threaded through holes are formed in the groove wall of the other side of the U-shaped groove in the direction perpendicular to the groove bottom, and two screws penetrate through the threaded through holes; the upper screw is a jacking screw, a square base is arranged at the head of the jacking screw, and the jacking screw can penetrate through the U-shaped opening to jack and fix a connecting lug of a horizontal stabilizer; the lower screw is a pulling screw, and a clamping jaw is arranged at the head of the pulling screw; and the clamping jaw is used for clamping the head of the horizontal stabilizer connecting pin, and when the pulling screw rotates outwards, the connecting pin can be pulled out. According to the puller type special disassembling and assembling tool, the puller type U-shaped structural design is adopted, the rotating torque is ingeniously converted into the pulling force in the axial direction of the connecting pin, the horizontal stabilizer connecting pin is smoothly pulled out, the disassembling difficulty is reduced, and meanwhile, the damage to the connecting pin and a connecting lug bush in the disassembling process is avoided.

Description

technical field [0001] The invention relates to the field of assembly and disassembly tools, in particular to a puller-type special assembly and disassembly tool for connecting pins of a helicopter horizontal stabilizer. Background technique [0002] The horizontal stabilizer of the Gazelle helicopter is a rectangular airfoil with a curved airfoil composed of girders, wing ribs and skin. Helicopter balance and pitch stabilization. The horizontal stabilizer girder passes through the tail beam, and the left and right sides are connected to the rectangular airfoil fork with a horizontal connecting pin of φM8. The connecting pin is a load-bearing connecting pin made of metal, which is prone to electrochemical corrosion and deformation when it is exposed to the air for a long time and is subjected to torque. [0003] When disassembling the horizontal stabilizer connecting pin of the Gazelle helicopter, because there is no special disassembly tool, the main difficulties in disas...

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Problems solved by technology

[0004] The invention aims at the problem of disassembly and assembly of the connecting pin of the horizontal stabilizer of the Gazelle helicopter, and solves the problems of surface scratches, ear bushing damage, and low work efficiency caused by lack of special tools during disassembly. Material characteristics, disassembly requirements, working space and other factors are designed to meet the disassembly elements special disassembly tools for accessories

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