Shaft pulling device used for pulling airplane anti-icing valve guide shaft and shaft pulling method

A technology for guide shafts and shaft pullers, which is applied in the field of shaft pullers and shaft puller tools. It can solve the problems of difficult disassembly, difficult disassembly, and easy jamming of housing components and guide shaft components, and achieves convenient processing and easy operation. , its own solid effect

Active Publication Date: 2017-05-10
GUANGZHOU AIRCRAFT MAINTENANCE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to achieve the specified installation accuracy, the guide shaft assembly and the housing assembly adopt a tight fit; in addition, the working environment is high temperature and high pressure, which is easy to jam and difficult to disassemble
It is difficult to realize the fixation, support and simple, convenient and quick disassembly of the housing assembly and the guide shaft assembly with existing common tools

Method used

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  • Shaft pulling device used for pulling airplane anti-icing valve guide shaft and shaft pulling method
  • Shaft pulling device used for pulling airplane anti-icing valve guide shaft and shaft pulling method
  • Shaft pulling device used for pulling airplane anti-icing valve guide shaft and shaft pulling method

Examples

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Effect test

Embodiment Construction

[0061] Such as figure 1 Shown is the perspective view of the embodiment of the aircraft anti-icing valve guide shaft puller of the present invention, and the embodiment includes the following parts:

[0062] A tubular taper pipe thread sleeve 3, diameter is 21mm, and overall length is 101.5mm, and one end is shaped on the external thread of 71.5mm height (thread and the rotating nut 4 internal threads of the back cooperate), and the other end is drilled with transverse thread through hole so that The wrench handle 5 cooperates, the distance between the center of the through hole and the uppermost edge of the tapered tube screw sleeve 3 is 14mm, the inner hole at the end of the external thread is a bell mouth, the diameter of the conical bottom surface is 31.28mm, the diameter of the upper surface is 21mm, and the taper is 30 °, the internal design dimension of tapered tube threaded sleeve 3 is to allow it to match with lock mouth 1. see Figure 4-1 to Figure 4-3 .

[0063] ...

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Abstract

The invention discloses a shaft pulling device used for pulling an airplane anti-icing valve guide shaft. The shaft pulling device comprises a taper pipe barrel (3), a lock nozzle (1), a lock nozzle square-head nut (6), a positioning base (2), two long wrench handles (5), two short wrench handles (5), two L-shaped fastening and positioning blocks (7) and a rotating nut (4). The two L-shaped fastening and positioning blocks (7) are oppositely and symmetrically fixed to the two ends of a waist plate of the positioning base (2) through bases via connecting pieces; the lock nozzle (1) penetrates in the taper pipe barrel (3); the lock nozzle square-head nut (6) is screwed on an outer thread at one end of the lock nozzle (1); and the above parts penetrate a middle large through hole of the waist plate of the positioning base (2) together after being assembled. The positioning base (2) is fixed to a valve shell provided with the airplane anti-icing valve guide shaft.

Description

technical field [0001] The invention relates to a shaft pulling tool, in particular to a shaft pulling device for pulling out the guide shaft of an aircraft anti-icing valve. The invention also relates to a method for pulling out the guide shaft of an aircraft anti-icing valve by using the shaft puller. Background technique [0002] The aircraft anti-icing valve is an important part of the aircraft anti-icing system. Most of the anti-icing valves use servo pressure to control the movement of the internal piston to achieve the purpose of opening or closing the valve. Opening and closing of the ice valve. [0003] The guide shaft assembly of the aircraft anti-icing valve is an important part of the anti-icing valve, and the valve piston cooperates with the guiding shaft to realize the opening and closing of the valve. Since the piston is a constant moving part, long-term friction with the guide shaft will cause wear of the guide shaft, and the guide shaft needs to be disasse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/02
CPCB25B27/02B25B27/023Y02T50/40
Inventor 资雯李秉正薛巍甘展界
Owner GUANGZHOU AIRCRAFT MAINTENANCE ENG
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