CN216608853U

CN216608853U - Shaft extractor of air entraining cabin door

Info

Publication number: CN216608853U
Application number: CN202122945490.0U
Authority: CN
Inventors: 卫威; 赵良超; 高涵川; 章楠; 毛利民
Original assignee: Chinese Flight Test Establishment
Current assignee: Chinese Flight Test Establishment
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-05-27
Anticipated expiration: 2031-11-26

Abstract

The application belongs to the field of maintenance and guarantee of engineering, and particularly relates to a shaft extractor of an air entraining cabin door. The method comprises the following steps: the air entraining cabin door locking device comprises a T-shaped handle (1) and a pulling rod (2) with connecting external threads at the bottom, wherein the connecting external threads at the bottom of the pulling rod (2) are used for being in threaded fit with the inner wall of a connecting shaft of the air entraining cabin door, the T-shaped handle (1) is used for being connected with the internal threads at the top of the pulling rod (2), and when the air entraining cabin door locking device is used, the T-shaped handle (1) is arranged at one end of the central axis of a shaft extractor and used for dismounting and mounting an inner shaft of the connecting shaft of the air entraining cabin door and optimized into a parallel pulling and pushing form through a vertical clamping pulling and pushing form; the drawing rod (2) is arranged at the other end of the central axis of the shaft extractor and is used for connecting the shaft in the connecting shaft and the shaft extractor body reliably. The dismounting device is used for dismounting the inner shaft of the connecting shaft, and effectively avoids the risk that the gasket between the connecting shaft and the bulkhead falls.

Description

Shaft extractor of air entraining cabin door

Technical Field

The application belongs to the field of maintenance and guarantee of machineries, and particularly relates to a shaft extractor of an air entraining cabin door.

Background

In the structure of the bleed port door, an inner shaft of a connecting shaft of the bleed port door is in interference fit with an outer sleeve shaft, and the moving clearance is too small in the process of extraction and insertion, so that the assembly and disassembly are difficult. Meanwhile, the inner shaft of the connecting shaft penetrates through the wall hole of the partition frame of the machine body in the dismounting process, and the risk that the spacer of the wall hole between the connecting shaft and the wall hole of the partition frame falls to an inaccessible blind area exists.

In order to solve the problems, a special disassembling tool meeting the standard needs to be developed, the safety of personnel and equipment in disassembling and assembling work is improved, the personnel investment and the working time are reduced, and the working efficiency is improved.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is as follows: a shaft extractor of a bleed port door is designed for dismounting and mounting an inner shaft of a connecting shaft.

The technical scheme of the utility model is as follows:

a bleed port shaft drawer comprising: the T-shaped handle 1 is arranged at one end of the central axis of the shaft extractor and used for dismounting and mounting an inner shaft of the connecting shaft of the bleed port door, and the vertical clamping and pulling-in form is optimized into a parallel pulling-out and pushing-in form; the drawing rod 2 is arranged at the other end of the central axis of the shaft extractor and is used for connecting the shaft in the connecting shaft with the shaft extractor body reliably.

Furthermore, the outer wall of the drawing rod 2 is provided with patterns for increasing torsion when the shaft extractor is connected with the inner shaft of the connecting shaft of the air entraining cabin door.

Furthermore, patterns are arranged on the T-shaped handle 1 and used for increasing friction force in the shaft drawing process.

Further, the patterns are rhombus patterns.

Further, the diameter of the pull rod 2 is the same as the inner diameter of the inner shaft of the connecting shaft.

Furthermore, the length of the shaft extractor is smaller than the size of two partition frames of the airplane by a preset distance, and the volumes and the lengths of the T-shaped handle 1 and the pull rod 2 are ensured not to interfere with external objects.

The utility model has the advantages that:

the T-shaped handle and the pull rod with the connecting thread are integrated into a whole through the internal shaft thread of the connecting shaft of the bleed port door on the newly designed machine, and the T-shaped handle and the pull rod with the connecting thread are used for dismounting the internal shaft of the connecting shaft. The shaft extractor tool replaces the current situation that the original non-professional tool is not suitable for use, can greatly reduce the operation time and improve the working efficiency; by utilizing the innovative design concept and reasonably constructing and designing the tool structure, the risk that the gasket between the connecting shaft and the bulkhead falls off is effectively avoided, and the use requirement is met.

Drawings

FIG. 1 is a general schematic view of a shaft extractor provided in an embodiment of the present application;

FIG. 2 is a front view of the "T" shaped grip of the shaft extractor provided in the embodiments of the present application;

FIG. 3 is a top view of a shaft extractor pull rod provided in the embodiments of the present application;

fig. 4 is a drawing bar profile provided in the present application;

fig. 5 is a schematic view illustrating the connection between the drawing rod and the inner shaft of the connecting shaft according to the embodiment of the present application;

wherein, 1 "T" style of calligraphy handle, 2 pull poles, 3 connecting axle inner wall screw threads, 4 connecting axle outside sleeve axle.

Detailed Description

The shaft extractor is a tool integrating a T-shaped handle and a drawing rod with connecting threads by newly designing the internal shaft threads of the connecting shaft of the air entraining cabin door, and can be used for completing the dismounting and mounting work of the air entraining cabin door.

The air entraining cabin door shaft extractor comprises a T-shaped handle 1 and a drawing rod 2 with connecting threads. The tool has the advantages that the appearance is reasonably designed according to the installation position of the connecting shaft of the air entraining cabin door, the tool is convenient to operate by a hand-held tool, the shaft assembly in the connecting shaft is drawn out or inserted into the shaft sleeve outside the connecting shaft, and the drawing-out and pushing-in form is optimized into a parallel drawing-out and pushing-in form through vertical clamping.

As shown in fig. 1 to 5, the T-shaped handle 1 is arranged at one end of the central axis of the tool, optimizes the form of withdrawing or inserting the inner shaft assembly of the connecting shaft into the outer sleeve shaft 4 of the connecting shaft, and optimizes the form of withdrawing and pushing by vertical clamping into the form of withdrawing and pushing in parallel; the inner wall threads 3 of the connecting shaft inner shaft are arranged on the connecting shaft inner shaft of the air entraining cabin door and used for reliably connecting the drawing rod part of the shaft extractor body with the connecting shaft inner shaft, and the outer wall of the diamond pattern is positioned on the outer wall of the drawing rod 2 and the T-shaped handle 1 and used for increasing the torsion and increasing the friction force in the shaft extracting process when the shaft extractor is connected with the connecting shaft inner shaft of the air entraining cabin door.

The using method comprises the following steps:

as in fig. 1 to 5, the connecting shaft is mounted: the drawing rod 2 penetrates through the wall hole of the partition frame, a spacer of the wall hole is sleeved on the drawing rod, the tail thread is aligned to the position of the thread on the inner shaft of the connecting shaft inside the wall hole of the partition frame, and the drawing rod 2 is rotated to complete the connection of the drawing rod 2 and the connecting shaft; the tail thread of the T-shaped handle 1 is aligned with the head thread hole of the drawing rod 2, and the T-shaped handle 1 is rotated to complete the integral combination of the shaft extractor; holding the head of the T-shaped handle 1, and drawing out the connecting shaft for about 15cm in a direction parallel to the connecting shaft to enable the position of the connecting shaft to meet the installation requirement; the T-shaped handle 1 and the pull rod 2 are respectively detached.

Disassembling the connecting shaft: aligning the tail threads to the positions of the threads on the inner shaft of the connecting shaft outside the wall hole of the partition frame by using the drawing rod 2, and rotating the drawing rod 2 to complete the connection of the drawing rod 2 and the connecting shaft; the tail thread of the T-shaped handle 1 is aligned with the head thread hole of the drawing rod 2, and the T-shaped handle 1 is rotated to complete the integral combination of the shaft extractor; holding the head of the T-shaped handle 1, pushing the connecting shaft into the T-shaped handle by about 15cm in a direction parallel to the connecting shaft, and sleeving the wall hole gasket on the pull rod 2; firstly, the T-shaped handle 1 is dismounted, then a tool is used for clamping the wall hole gasket, the drawing rod 2 is dismounted to be in threaded connection with the connecting shaft, the drawing rod 2 is slowly drawn out, and the wall hole gasket is removed; the position of the connecting shaft meets the disassembly requirement.

Claims

1. A bleed port door axletree drawer, comprising: the air entraining cabin door locking device comprises a T-shaped handle (1) and a pulling rod (2) with connecting external threads at the bottom, wherein the connecting external threads at the bottom of the pulling rod (2) are used for being in threaded fit with the inner wall of a connecting shaft of the air entraining cabin door, the T-shaped handle (1) is used for being connected with the internal threads at the top of the pulling rod (2), and when the air entraining cabin door locking device is used, the T-shaped handle (1) is arranged at one end of the central axis of a shaft extractor and used for dismounting and mounting an inner shaft of the connecting shaft of the air entraining cabin door and optimized into a parallel pulling and pushing form through a vertical clamping pulling and pushing form; the drawing rod (2) is arranged at the other end of the central axis of the shaft extractor and is used for connecting the inner shaft of the connecting shaft with the shaft extractor body reliably.

2. Shaft extractor according to claim 1, characterized in that the outer wall of the extraction rod (2) is provided with a pattern for increasing the torque when the shaft extractor is connected with the inner shaft of the connection shaft of the bleed port door.

3. The shaft extractor as claimed in claim 1, wherein the T-shaped handle (1) is provided with patterns for increasing friction force during shaft extraction.

4. A shaft extractor according to claim 2 or 3, wherein said pattern is a diamond pattern.

5. Shaft extractor according to claim 1, characterized in that the diameter of the extracting rod (2) is the same as the inner diameter of the inner shaft of the connecting shaft.

6. The shaft extractor as claimed in claim 1, wherein the length of the shaft extractor is smaller than the size of two bulkheads of the airplane by a preset distance, and the volume and the length of the T-shaped handle (1) and the pulling rod (2) are ensured not to interfere with external objects.