Auxiliary tool for airplane front wheel turning test

Abstract

The utility model provides an auxiliary tool for an airplane front wheel turning test. The auxiliary tool comprises a first base, a second base, a locking mechanism, an anti-slip strip and a rotating piece, the first base and the second base are rotationally connected through the rotating piece; the first base is rotationally provided with a rotary table, a pair of wheel grooves are formed in the rotary table, a rotary shaft is arranged on the side, away from the wheel grooves, of each tire, and locking mechanisms are arranged on the two side walls of the first base. An inclined plate is arranged on the second base; the automobile front wheel anti-skid device is simple in structure, convenient and fast to operate and easy to carry manually, the phenomenon that the ground is polluted by lubricating oil can be avoided, and front wheel tires can be effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft maintenance, in particular to an auxiliary tool for aircraft front wheel turning test. Background Art

[0002] After the aircraft completes scheduled inspection and maintenance, it is necessary to conduct a functional test on the turning of the aircraft's front wheels before leaving the aircraft. The test operation process is to place the aircraft's front wheels on a special test device by towing to test the front wheels' turning performance in place. The existing test method is to stack two aluminum plates together, apply lubricant between the aluminum plates, and place them under the bottom of the front wheels for corresponding tests. However, there are problems such as the aluminum plates damaging the front wheel tires, the front wheels easily slipping on the aluminum plates, and the lubricant overflowing from between the aluminum plates and polluting the test site. Therefore, an auxiliary tool for aircraft front wheel turning tests is needed. Utility Model Content

[0003] The utility model provides an auxiliary tool for aircraft nose wheel turning test, which can effectively solve the above problems.

[0004] The utility model is achieved in that:

[0005] The utility model provides an auxiliary tool for testing the turning of the front wheels of an aircraft, comprising: a first base, a second base, a locking mechanism, an anti-skid strip and a rotating member; the first base and the second base are rotatably connected via the rotating member; the first base is rotatably provided with a turntable, a pair of wheel grooves are provided on the turntable, a rotating shaft is provided on a side of the turntable away from the wheel grooves, and locking mechanisms are provided on both side walls of the first base; an inclined plate is provided on the second base; and a plurality of anti-skid strips are provided on the side of the first base and the second base close to the ground.

[0006] As a further improvement, the first base includes: a first bottom plate, a guard plate and a turntable. The first bottom plate is provided with a guard plate space for placing the guard plate. The first bottom plate is also provided with fixed plates at both side walls. The first bottom plate is provided with a handle on the side away from the second base.

[0007] As a further improvement, the guard plate is provided with a turntable space for placing the turntable, and an inwardly inclined slope is provided on the inner wall of the wheel groove, and the inclination angle of the slope is between 50° and 70°.

[0008] As a further improvement, the second base includes: a second bottom plate and an inclined plate, and the second bottom plate is provided with a finger groove for inserting fingers on a side away from the first base.

[0009] As a further improvement, the inclined plate is provided with grooves on both side walls near one end of the finger groove, and the inclination angle of the inclined plate is between 2° and 4°.

[0010] The beneficial effects of the utility model are:

[0011] The utility model realizes the foldability of the auxiliary tool by arranging the first base and the second base to be rotatably connected, and a locking mechanism is provided on the first base to improve the portability of the auxiliary tool and the stability during transportation; and by arranging anti-skid strips at the bottom of the first base and the second base, the anti-skid performance of the auxiliary tool is improved, and the auxiliary tool is prevented from being displaced when the front wheel of the towing aircraft enters the auxiliary tool, resulting in the front wheel not entering the correct position, and causing the auxiliary tool to be crushed by the front wheel of the aircraft and damaged; by arranging wheel grooves on the turntable, the front wheel of the aircraft can be effectively fixed to avoid slipping during testing, and by combining the turntable in the guard plate, the overflow of lubricant can be effectively avoided to cause ground pollution to the test site; by arranging an inclined plate on the second base, the difficulty of towing the front wheel of the aircraft is reduced; the guard plate, turntable and inclined plate are made of nylon material to protect the front wheel tire from damage while ensuring the load-bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 The utility model is a schematic top view of the structure of an auxiliary tool for aircraft front wheel turning test.

[0014] Figure 2 The utility model is a structural schematic diagram of an auxiliary tool for aircraft front wheel turning test.

[0015] Figure 3 The utility model is a schematic diagram of the bottom structure of an auxiliary tool for aircraft front wheel turning test.

[0016] Figure 4 The utility model is a schematic diagram of the structure decomposition of an auxiliary tool for aircraft nose wheel turning test.

[0017] In the figure: 1-first base, 11-first bottom plate, 111-handle, 112-fixed plate, 12-guard plate, 13-turntable, 131-rotating shaft, 132-wheel groove, 2-second base, 21-second bottom plate, 22-inclined plate, 3-locking mechanism, 4-anti-slip strip, 5-rotating member. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically specified.

[0020] Reference Figure 1-4 As shown, the present invention provides an auxiliary tool for aircraft nose wheel turning tests. The auxiliary tool includes a first base 1, a second base 2, a locking mechanism 3, an anti-slip strip 4, and a rotating member 5. The first base 1 and the second base 2 are connected by a rotating member 5, which can be a rotating shaft or a hinge, so that the auxiliary tool has a foldable function. The first base 1 is composed of a first base 11, a guard plate 12, and a turntable 13. The first base 11 is provided with a guard plate space for placing the guard plate 12. A fixing plate 112 and a locking mechanism 3 are respectively provided on the two side walls of the first base 11. The fixing plate 112 fixes the guard plate 12 to the first base 11 by bolt connection. The locking mechanism 3 is used to lock the first base 1 and the second base 2 when the auxiliary tool is folded, ensuring that the auxiliary tool remains stable during transportation. For easy carrying, the first base 11 is provided with a handle 111 on the side away from the second base 2. The handle 111 helps to improve the portability of the auxiliary tool.

[0021] Furthermore, a turntable space for placing a turntable 13 is provided on the guard plate 12. The turntable 13 is rotatably arranged in the turntable space. A pair of wheel grooves 132 are provided on the turntable 13, and the wheel grooves 132 are used to clamp the front wheels of the aircraft. In order to facilitate the entry and exit of the front wheels of the aircraft, an inwardly inclined slope is provided on the inner wall of the wheel groove 132. The inclination angle of the slope is between 50° and 70°. In this embodiment, the inclination angle is preferably set to 60°. A rotating shaft 131 is provided on the side of the turntable 13 away from the wheel groove 132. A connecting hole compatible with the rotating shaft 131 is provided in the turntable space. The turntable 13 is rotated in the guard plate 12 and detachably connected to the guard plate 12 through the rotating shaft 131. When using the turntable 13, lubricant needs to be applied at the connection with the guard plate 12. The turntable space of the guard plate 12 can effectively prevent the lubricant from overflowing the auxiliary tools, thereby avoiding the ground pollution caused by the lubricant overflow.

[0022] Furthermore, the second base 2 includes a second bottom plate 21 and an inclined plate 22. The second bottom plate 21 is provided with a finger groove for placing fingers on the side away from the first base 1, so that the second base 2 can be manually lifted and folded and placed on the first base 1 after the test. The inclined plate 22 is fixedly set on the second bottom plate 21. The inclination angle of the inclined plate 22 is between 2° and 4°. In this embodiment, the inclination angle is preferably set to 3°. This angle makes it easy to manually tow the front wheel of the aircraft into the auxiliary tool. At the same time, the length of the inclined plate 22 will not be too long, resulting in the auxiliary tool being too large and not conducive to manual carrying. The inclined plate 22 is provided with grooves on both side walls near one end of the finger groove. The groove can be used to place breeding blocks or stick tape to prevent the inclined plate 22 from tilting during use.

[0023] Furthermore, to ensure sufficient friction between the auxiliary tool and the ground during use and prevent the auxiliary tool from being displaced when the aircraft's front wheel enters the auxiliary tool, a plurality of anti-slip strips 4 are provided on the side closest to the ground on both the first base 1 and the second base 2. The anti-slip strips 4 effectively increase the friction between the auxiliary tool and the ground, preventing the auxiliary tool from being displaced when the aircraft's front wheel enters the auxiliary tool, which could result in the auxiliary tool being unable to accurately enter the wheel groove and being crushed by the aircraft's front wheel.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An auxiliary tool for aircraft nose wheel turning test, characterized in that: include: A first base (1), a second base (2), a locking mechanism (3), an anti-slip strip (4), and a rotating member (5); The first base (1) and the second base (2) are rotatably connected via the rotating member (5); the first base (1) is rotatably provided with a turntable (13), the turntable (13) is provided with a pair of wheel grooves (132), the turntable (13) is provided with a rotating shaft (131) on a side away from the wheel grooves (132), and locking mechanisms (3) are provided on both side walls of the first base (1); an inclined plate (22) is provided on the second base (2); and the first base (1) and the second base (2) are both provided with a plurality of anti-slip strips (4) on a side close to the ground.

2. The auxiliary tool for aircraft nose wheel turning test according to claim 1, characterized in that: The first base (1) comprises: a first bottom plate (11), a guard plate (12) and a turntable (13); the first bottom plate (11) is provided with a guard plate space for placing the guard plate (12); the first bottom plate (11) is further provided with fixing plates (112) at both side walls; the first bottom plate (11) is provided with a handle (111) on a side away from the second base (2).

3. The auxiliary tool for aircraft nose wheel turning test according to claim 2, characterized in that: The guard plate (12) is provided with a turntable space for placing the turntable (13); the inner wall of the wheel groove (132) is provided with an inwardly inclined slope, and the inclination angle of the slope is between 50° and 70°.

4. The auxiliary tool for aircraft nose wheel turning test according to claim 1, characterized in that: The second base (2) comprises a second bottom plate (21) and an inclined plate (22); the second bottom plate (21) is provided with a finger groove for inserting a finger on a side away from the first base (1).

5. The auxiliary tool for aircraft nose wheel turning test according to claim 4, characterized in that: The inclined plate (22) is provided with grooves on both side walls close to one end of the finger groove, and the inclined angle of the inclined plate (22) is between 2° and 4°.

Images