S-shaped pneumatic drill adapter for fastening high-locking bolt on airplane

Abstract

The utility model relates to the technical field of aviation part assembly, in particular to an S-shaped pneumatic drill adapter for fastening a high-locking bolt on an airplane, which comprises a threaded pull rod and a sleeve. A threaded section is arranged at the bottom of the threaded pull rod and used for being installed at the front end of the S-shaped pneumatic drill. A square head is arranged at the front end of the threaded pull rod and is used as a crossover coupling of the sleeve; a limiting block is arranged on the rear side of the square head and used for limiting when the sleeve is connected in a rotating mode. A square hole is formed in the bottom of the sleeve, the size of the square hole is matched with that of the square head of the threaded pull rod, and it is guaranteed that the sleeve can be installed at the front end of the threaded pull rod through the square hole. A hexagonal hole is formed in the front end of the sleeve and is used for placing a high-locking nut with a hexagonal head; anti-skid groove lines are arranged on the outer side face of the sleeve in the circumferential direction. The tool can be suitable for fastening and assembling high-locking bolts with different angles and different specifications in a narrow space on an airplane, and is high in assembling efficiency, low in cost and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation component assembly, in particular to an S-shaped air drill adapter for fastening high-locking bolts on an airplane. Background Art

[0002] With the development of modern aviation technology, a large number of new materials are used in aircraft structures, especially the widespread application of composite materials, which has led to changes in aircraft assembly processes. The most representative of these is the extensive use of high-locking bolts.

[0003] During the aircraft assembly process, due to the aircraft door assembly design requirements, high-locking bolts need to be installed at the contact joints around the door, and the high-locking nuts that match the high-locking bolts must be installed inside the door. However, for the door, the space between the beam angle box and the contact joint is very narrow. At present, there are mainly two installation methods. One is that the worker reaches into the gap with his hand to locate the high-locking nut, and then tightens it with an ordinary small wrench. However, this installation efficiency is low, and it is difficult to tighten the high-locking nut with an ordinary small wrench, which is time-consuming and labor-intensive; the other is to purchase special tools that match the high-locking bolts and high-locking nuts for installation, but the special tools are expensive. At present, since high-locking bolts are widely used in various parts of the aircraft, and the specifications of the high-locking bolts in various parts are different, it is necessary to use multiple sets of matching special tools for assembly, which further leads to high assembly costs and difficulty in tooling management. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the utility model provides an S-shaped air drill adapter for tightening high-locking bolts on aircraft. By arranging a replaceable threaded pull rod and a replaceable sleeve, it is used in conjunction with an S-shaped air drill with a rotatable front end. It can be suitable for tightening and assembling high-locking bolts of different angles and specifications in a narrow space on an aircraft.

[0005] The technical solution of the utility model is:

[0006] An S-shaped air drill adapter for tightening high-lock bolts on an aircraft, comprising a threaded pull rod and a sleeve;

[0007] The bottom of the threaded pull rod is provided with a threaded section for installation at the front end of the S-shaped air drill; the front end of the threaded pull rod is provided with a square head for use as a conversion joint for the sleeve; a limit stop is provided on the rear side of the square head for limiting the position when transferring the sleeve;

[0008] A square hole is provided at the bottom of the sleeve, and the size of the square hole matches the square head of the threaded pull rod, ensuring that the sleeve can be installed on the front end of the threaded pull rod through the square hole; a hexagonal hole is provided at the front end of the sleeve for inserting a high lock nut with a hexagonal head; and anti-slip grooves are provided on the outer side of the sleeve along the circumferential direction.

[0009] Furthermore, the threaded pull rod has different length specifications and is selected according to the working space.

[0010] Furthermore, the hexagonal hole at the front end of the sleeve has different sizes and specifications, which are selected according to the specifications of the high lock nut to be tightened.

[0011] Furthermore, the threaded pull rod and the sleeve are made of No. 45 steel.

[0012] During assembly, the assembler selects a suitable threaded pull rod according to the size of the working space, screws the threaded section of the threaded pull rod into the front end of the S-shaped air drill to fix it, and then selects a suitable sleeve according to the specifications of the high-locking nut to be tightened, inserts one end of the square hole of the sleeve into the square head at the front end of the threaded pull rod and presses against the limit stop, and finally places the high-locking nut to be assembled into the hexagonal hole at the front end of the sleeve, holds the S-shaped air drill, extends it into the working space, and puts the sleeve together with the high-locking nut on the high-locking bolt to be tightened for assembly.

[0013] Beneficial Effects

[0014] The utility model provides an S-shaped air drill adapter for tightening high-locking bolts on an aircraft. By arranging a replaceable threaded pull rod and a replaceable sleeve, the adapter is used in conjunction with an S-shaped air drill with a rotatable front end. The adapter can be suitable for tightening and assembling high-locking bolts of different angles and specifications in a narrow space on an aircraft. Compared with the manual tightening method, the utility model can quickly replace the threaded pull rod and the sleeve, and is used in conjunction with the air drill to have high assembly efficiency. Compared with purchasing special tools matching the high-locking bolts and high-locking nuts, the utility model has low cost and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the assembly of an embodiment of the utility model;

[0016] Figure 2 It is a cross-sectional view and a right side view of an embodiment of the utility model;

[0017] Figure 3 The following is a photo of the embodiment of the utility model in combination with an S-shaped air drill;

[0018] Figure 4 This is a real photo of the embodiment of the utility model working in a narrow space with an S-shaped air drill;

[0019] In the figure: 1-threaded pull rod; 11-threaded section; 12-limit stopper; 13-square head; 2-sleeve; 21-square hole; 22-hexagonal hole; 23-anti-slip groove. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0021] An embodiment of the present utility model is as follows Figure 1 to Figure 2 As shown, an S-shaped air drill adapter for fastening high-lock bolts on an aircraft comprises a threaded pull rod 1 and a sleeve 2;

[0022] The bottom of the threaded rod 1 is provided with a threaded section 11 for installation at the front end of an S-shaped air drill; the front end of the threaded rod 1 is provided with a square head 13 for use as a conversion joint for the sleeve 2; a limit stop 12 is provided on the rear side of the square head 13 for limiting the position when transferring the sleeve 2;

[0023] A square hole 21 is provided at the bottom of the sleeve 2, and the size of the square hole 21 matches the square head 13 of the threaded rod 1, ensuring that the sleeve 2 can be installed on the front end of the threaded rod 1 through the square hole 21; a hexagonal hole 22 is provided at the front end of the sleeve 2 for inserting a high lock nut with a hexagonal head; the outer side surface of the sleeve 2 is provided with anti-slip grooves 23 along the circumferential direction.

[0024] In this embodiment, the threaded pull rod 1 has different length specifications, which are selected according to the working space.

[0025] In this embodiment, the hexagonal hole at the front end of the sleeve 2 has different sizes and specifications, which are selected according to the specifications of the high lock nut to be tightened.

[0026] In this embodiment, the threaded pull rod 1 and the sleeve 2 are made of No. 45 steel.

[0027] During assembly, the assembler selects a suitable threaded rod 1 according to the size of the working space, screws the threaded section 11 of the threaded rod 1 into the front end of the S-shaped air drill to fix it, and then selects a suitable sleeve 2 according to the specifications of the high lock nut to be tightened, inserts one end of the sleeve square hole 21 into the square head 13 at the front end of the threaded rod 1 and presses against the limit stop 12. After the installation is completed, Figure 3 As shown, finally, put the high lock nut to be assembled into the hexagonal hole 22 at the front end of the sleeve 2, hold the S-shaped air drill, extend it into the working space, and put the sleeve 2 together with the high lock nut on the high lock bolt to be tightened for assembly. The assembly operation is as shown in FIG. Figure 4 shown.

[0028] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. An S-shaped air drill adapter for fastening high-lock bolts on aircraft, characterized in that: Includes a threaded tie rod and a sleeve; The bottom of the threaded pull rod is provided with a threaded section for installation at the front end of the S-shaped air drill; the front end of the threaded pull rod is provided with a square head for use as a conversion joint for the sleeve; a limit stop is provided on the rear side of the square head for limiting the position when transferring the sleeve; A square hole is provided at the bottom of the sleeve, and the size of the square hole matches the square head of the threaded pull rod, ensuring that the sleeve can be installed on the front end of the threaded pull rod through the square hole; a hexagonal hole is provided at the front end of the sleeve for inserting a high lock nut with a hexagonal head; and anti-slip grooves are provided on the outer side of the sleeve along the circumferential direction.

2. The S-shaped air drill adapter for fastening high-lock bolts on an aircraft according to claim 1, characterized in that: The threaded pull rod has different length specifications and is selected according to the working space.

3. The S-shaped air drill adapter for fastening high-locking bolts on an aircraft according to claim 1, characterized in that: The hexagonal hole at the front end of the sleeve has different sizes and specifications, which are selected according to the specifications of the high lock nut to be tightened.

4. The S-shaped air drill adapter for fastening high-lock bolts on an aircraft according to claim 1, characterized in that: The threaded pull rod and the sleeve are made of 45# steel.

Images