Airplane main wheel driving key detection tool

Abstract

The utility model discloses an airplane main wheel driving key detection tool, which comprises a tool main body and a tool limiting block arranged at the end part of the tool main body, the tool main body is provided with a curvature measuring slide rail groove; driving key positioning blocks are arranged at the two ends of the bending degree measuring sliding rail groove; and a measuring calibration hole is formed in the tool main body. When in use, the probe of the depth measuring gauge is inserted into the measuring calibration hole for zero calibration, the reading is reset, and then the probe is placed in the curvature measuring slide rail groove and moves to perform curvature inspection on the surface of the to-be-detected driving key. And the read maximum value is compared with a standard value, so that whether the bending degree of the upper surface of the driving part exceeds the standard or not can be intuitively judged.

Description

Technical Field

[0001] The utility model relates to an aircraft manufacturing detection tool, in particular to an aircraft main wheel drive key detection tool. Background Art

[0002] The optional wheel drive keys of some models will bend on the upper surface of the drive keys after long-term use, which will have a great impact on the safe operation of the aircraft. Therefore, in the maintenance of aircraft accessories, the inspection of the curvature of the upper surface of the main wheel drive keys is a very important inspection item in wheel maintenance. The drive key is installed on the inner half of the main wheel hub, and the number of installed keys ranges from 8 to 12. At present, the measurement and inspection of the curvature of the upper surface of the drive key is widely carried out by removing it and using a calibration platform with a plug gauge for inspection. Each time the drive key is removed to measure the curvature of the upper surface, the work content is cumbersome, which invisibly increases a lot of human factors and affects the maintenance quality of the aircraft main wheel. Therefore, it is necessary to develop an inspection device that can measure the curvature of the upper surface of the drive key without removing the drive key. Utility Model Content

[0003] In view of the above-mentioned deficiencies existing in the current measurement and inspection process of the aircraft main wheel drive key, the utility model provides an aircraft main wheel drive key detection tool, which can detect the curvature of the upper surface of the aircraft main wheel drive key without disassembling it, thereby reducing the impact on the maintenance quality of the aircraft main wheel.

[0004] In order to achieve the above object, the embodiment of the utility model adopts the following technical solution:

[0005] A tool for detecting a driving key of an aircraft main wheel comprises a tool body and a tool limit block arranged at the end of the tool body; the tool body is provided with a curvature measuring slide rail groove; both ends of the curvature measuring slide rail groove are provided with a driving key positioning block; one side of the curvature measuring slide rail groove is provided with a measuring calibration hole; the number of the curvature measuring slide rail grooves is at least two; the two curvature measuring slide rail grooves are arranged on both sides of the tool body and are parallel to each other.

[0006] According to one aspect of the utility model, the number of the driving key positioning blocks is four; and the driving key positioning blocks are respectively arranged on both sides of the two curvature measuring slide rail grooves.

[0007] According to one aspect of the utility model, the diameter of the measurement calibration hole is between 5.9 and 6.1 mm.

[0008] According to one aspect of the utility model, the center of the measurement calibration hole is on the extension line of the center line of the curvature measurement slide rail groove.

[0009] According to one aspect of the utility model, anti-interference windows are provided on both sides of the curvature measurement slide rail groove.

[0010] According to one aspect of the utility model, the tooling body and the tooling limit block are designed as one piece and are L-shaped as a whole; wherein the tooling limit block is at 90° to the tooling body.

[0011] Advantages of the utility model:

[0012] The tool is provided with a curvature measuring slide rail groove and a corresponding measuring gauge calibration hole for the working condition of the curvature inspection operation on the upper surface of the aircraft main wheel driving key, so as to facilitate the use of a depth measuring gauge to inspect the curvature of the upper surface of the driving key, simplify the inspection process of the curvature of the upper surface of the aircraft main wheel driving key, and meet the maintenance quality requirements. Without disassembling the driving key, it is possible to quickly check whether the curvature of the upper surface of the driving key meets the standard; the tool has a simple structure, is easy to use, is easy to process and manufacture, and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a structural schematic diagram of an aircraft main wheel drive key detection tooling according to the utility model;

[0015] Figure 2 This is a schematic diagram of a usage scenario of the aircraft main wheel drive key detection tooling described in an embodiment of the utility model.

[0016] Legend: 1. Tool body; 11. Curvature measurement slide rail groove; 12. Measurement calibration hole; 13. Drive key positioning block; 14. Anti-interference window; 2. Tool limit block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figure 1As shown, an aircraft main wheel drive key detection tool comprises a tool body 1 and a tool limit block 2 arranged at the end of the tool body 1; the tool body 1 is provided with a curvature measuring slide rail groove 11; both ends of the curvature measuring slide rail groove 11 are provided with drive key positioning blocks 13; one side of the curvature measuring slide rail groove 11 is provided with a measurement calibration hole 12;

[0019] When in use, the depth gauge probe is inserted into the measurement calibration hole 12 for zero calibration, the reading is cleared, and then the probe is placed in the curvature measurement slide rail groove 11 to move the surface of the drive key to be tested to check the curvature. The maximum value read is compared with the standard value to intuitively determine whether the curvature of the upper surface of the drive part exceeds the standard;

[0020] The number of the curvature measuring slide rail grooves 11 is at least two; the two curvature measuring slide rail grooves 11 are arranged on both sides of the tooling body 1 and are parallel to each other, and the curvature of both sides of the driving key can be detected during use.

[0021] There are four drive key positioning blocks 13, which are used to accurately position the tooling to the upper surface of the main wheel drive key to be tested, so that the curvature measurement slide rail groove 11 can be aligned with the upper surface of the drive key; the four drive key positioning blocks 13 are divided into two groups, which are arranged on both sides of the curvature measurement slide rail groove 11; the spacing between the two drive key positioning blocks 13 on the same side is greater than the drive key width of 20mm.

[0022] The aperture of the measuring calibration hole 12 is between 5.9 and 6.1 mm, and can be applicable to the probes of mainstream depth gauges on the market.

[0023] To ensure that the measurement results can more accurately reflect the actual curvature of the drive key, the center of the measurement calibration hole 12 is on the extension line of the center line of the curvature measurement slide rail groove 11; the length of the curvature measurement slide rail groove 11 should also be consistent with the length of the straight part of the drive key.

[0024] Anti-interference windows 14 are provided on both sides of the curvature measuring slide rail groove 11 to avoid the protruding part of the main wheel driving key and prevent interference with the protruding part on the driving key when installing the tooling.

[0025] The tooling body 1 and the tooling limit block 2 are designed as an integrated whole, and are L-shaped as a whole. They are made of stainless steel and are sturdy and durable. The tooling limit block 2 is 90 degrees to the tooling body 1.

[0026] like Figure 2 The figure shows a schematic diagram of the use scenario of the tooling recorded in the utility model, in which the reference numeral A is a schematic diagram of the main wheel of the aircraft, and the reference numeral B represents a depth measuring gauge;

[0027] This tool needs to be used in conjunction with a depth gauge, which is a conventional commercially available style. When in use, install this drive key detection tool on the main wheel drive key, ensure that the drive key positioning block 13 is fully engaged with the drive key and slightly press against the detection tool. After the tool is fixed in place, insert the measuring probe of the depth gauge (the probe diameter is usually 5mm) into the measurement calibration hole 12 for calibration, and clear the reading. Use the depth gauge to slide along the curvature measurement groove corresponding to the measurement calibration hole 12, read the maximum value on the depth gauge and record it. Repeat the above steps on the other side of the tool, and also read and record the maximum value of the depth gauge. Compare the read maximum value with the standard value of the curvature of the upper surface of the drive key, and you can very intuitively determine whether the curvature of the upper surface of the drive key exceeds the standard.

[0028] Advantages of the utility model:

[0029] The tool is provided with a curvature measuring slide rail groove and a corresponding measuring gauge calibration hole for the working condition of the curvature inspection operation on the upper surface of the aircraft main wheel driving key, so as to facilitate the use of a depth measuring gauge to inspect the curvature of the upper surface of the driving key, simplify the inspection process of the curvature of the upper surface of the aircraft main wheel driving key, and meet the maintenance quality requirements. Without disassembling the driving key, it is possible to quickly check whether the curvature of the upper surface of the driving key meets the standard; the tool has a simple structure, is easy to use, is easy to process and manufacture, and has low cost.

[0030] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. An aircraft main wheel drive key detection tool, characterized in that: The tooling device comprises a tooling body (1) and a tooling limit block (2) arranged at the end of the tooling body (1); a curvature measuring slide rail groove (11) is arranged on the tooling body (1); drive key positioning blocks (13) are arranged at both ends of the curvature measuring slide rail groove (11); a measurement calibration hole (12) is arranged on one side of the curvature measuring slide rail groove (11); the number of the curvature measuring slide rail grooves (11) is at least two; and the two curvature measuring slide rail grooves (11) are arranged on both sides of the tooling body (1) and are parallel to each other.

2. The aircraft main wheel drive key detection tooling according to claim 1, characterized in that: The number of the driving key positioning blocks (13) is four; two driving key positioning blocks (13) are respectively arranged on both sides of the two curvature measuring slide rail grooves (11).

3. The aircraft main wheel drive key detection tooling according to claim 1, characterized in that: The diameter of the measurement calibration hole (12) is between 5.9 and 6.1 mm.

4. The aircraft main wheel drive key detection tooling according to claim 3, characterized in that: The center of the measurement calibration hole (12) is on the extension line of the center line of the curvature measurement slide rail groove (11).

5. The aircraft main wheel drive key detection tool according to claim 1, characterized in that: Anti-interference windows (14) are provided on both sides of the curvature measurement slide rail groove (11).

6. The aircraft main wheel drive key detection tooling according to claim 1, characterized in that: The tooling body (1) and the tooling limit block (2) are designed as an integrated whole and are L-shaped as a whole; The tooling limit block (2) is at an angle of 90° to the tooling body (1).

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