A main landing gear axle adapter for aircrafts capable of adapting to various aircraft types

Abstract

The present invention discloses an aircraft main landing gear axle adapter that can be adapted to various aircraft models, including a mounting sleeve, wherein the mounting sleeve is provided with a first mounting position, a second mounting position, a third mounting position and a fourth mounting position, wherein the first mounting position is used to mount the axle of the main landing gear, the second mounting position is used to mount a tire pressure transducer, the third mounting position is used to mount a wheel speed sensor, and the fourth mounting position is used to mount a brake cooling motor, wherein the output shaft of the brake cooling motor extends to the outside of the mounting sleeve after passing through the wheel speed sensor and the tire pressure transducer. The adapter of the present invention can adapt the tire pressure transducer, wheel speed sensor and brake cooling motor of serial design to different aircraft models, and can also only retain the functional equipment required by the user according to the user's needs, and adapt to various situations, thereby effectively solving the problem of current customized product design, making the optional products universal and combined, and reducing the installation cost of the aircraft.

Description

Technical Field

[0001] The invention belongs to the technical field of aircraft, and in particular relates to a main landing gear axle adapter for aircrafts which can be adapted to various aircraft models. Background Art

[0002] With the continuous iteration and improvement of aircraft models, more and more aircraft need to install products in the wheels and main landing gear axles of the aircraft. For example, the installation of tire pressure monitoring and cooling devices requires the installation of tire pressure transducers, wheel speed sensors and brake cooling motors in the main landing gear axles. If the aircraft needs to be equipped with tire pressure monitoring and cooling products, it is necessary to customize the design of the corresponding tire pressure transducers, wheel speed sensors, and brake cooling motors according to the size of the main landing gear axles of different models. In response to the different customization requirements of existing aircraft, for example, for some models, the installation of tire pressure monitoring and cooling products in the main landing gear needs to be customized according to the size of the main landing gear axles of the model. At the same time, due to the need to match the axle size, the same type of products will be managed according to different models only because of the external size, and the product weight cannot be reduced. The disadvantage is that it is difficult to achieve a universal design, which greatly increases the installation cost of the aircraft. Summary of the invention

[0003] The purpose of the present invention is to provide an aircraft main landing gear axle adapter that can be adapted to various aircraft models, so as to solve the above-mentioned problems existing in the prior art.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an aircraft main landing gear axle adapter that can be adapted to various aircraft models, including a mounting sleeve, the mounting sleeve is provided with a first mounting position, a second mounting position, a third mounting position and a fourth mounting position, the first mounting position is used to install the axle of the main landing gear, and the mounting sleeve is arranged on the inner side of the axle; the second mounting position is used to install the tire pressure transducer, and the tire pressure transducer is arranged on the inner side of the mounting sleeve; the third mounting position is used to install the wheel speed sensor, and the wheel speed sensor is arranged on the inner side of the mounting sleeve; the fourth mounting position is used to install the brake cooling motor, and the brake cooling motor is arranged on the inner side of the mounting sleeve, and the output shaft of the brake cooling motor passes through the wheel speed sensor and the tire pressure transducer and then extends to the outside of the mounting sleeve.

[0005] As an optional implementation of the above technical solution, the first mounting position is provided with a plurality of first mounting holes, and the plurality of first mounting holes are evenly arranged along the circumference of the mounting sleeve, and the first mounting holes are equipped with first mounting screws for connecting the wheel axle.

[0006] As an optional implementation of the above technical solution, the inner wall of the mounting sleeve is provided with a limiting groove connected to the first mounting hole, and the depth of the limiting groove matches the head height of the first mounting screw.

[0007] As an optional implementation of the above technical solution, the second mounting position is provided with a plurality of second mounting holes, and the plurality of second mounting holes are evenly arranged along the circumference of the mounting sleeve, and the second mounting holes are equipped with second mounting screws for connecting the tire pressure converter.

[0008] As an optional implementation of the above technical solution, the second mounting position is provided with three second mounting holes, and the second mounting holes are stepped holes.

[0009] As an optional implementation of the above technical solution, the fourth mounting position is provided with a plurality of third mounting holes, and the plurality of third mounting holes are evenly arranged along the circumference of the mounting sleeve, and the third mounting holes are equipped with third mounting screws for connecting the brake cooling motor.

[0010] As an optional implementation of the above technical solution, the fourth mounting position is provided with three third mounting holes, and the third mounting holes are stepped holes.

[0011] As an optional implementation of the above technical solution, the wheel speed sensor is arranged between the tire pressure converter and the brake cooling motor, and the two sides of the wheel speed sensor are respectively connected to the tire pressure converter and the brake cooling motor.

[0012] As an optional implementation of the above technical solution, a first connecting member and a second connecting member are respectively provided on both sides of the wheel speed sensor, the first connecting member is provided with a first fixing hole, and the first fixing hole is equipped with a first connecting screw for connecting a tire pressure converter; the second connecting member is provided with a second fixing hole, and the second fixing hole is equipped with a second connecting screw for connecting a brake cooling motor.

[0013] As an optional implementation of the above technical solution, a plurality of weight-reducing hole grooves are opened on the surface of the mounting sleeve.

[0014] As an optional implementation of the above technical solution, the mounting sleeve is made of 7075 aluminum alloy material.

[0015] As an optional implementation of the above technical solution, the wall thickness of the installation sleeve is not less than 5 mm.

[0016] The beneficial effects of the present invention are:

[0017] The present invention designs an aircraft main landing gear axle adapter that can install tire pressure converters, wheel speed sensors, and brake cooling motors in the axle to achieve universal optional installation. The adapter can adapt the tire pressure converters, wheel speed sensors, and brake cooling motors designed in series to different aircraft models, and can also only retain the functional equipment required by the user according to user needs, and adapt to a variety of situations. The present invention effectively solves the current problem of customized product design, makes the optional products universal and combined, and reduces the installation cost of the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of an adapter in one embodiment of the present invention;

[0019] Figure 2 is a schematic diagram of the front structure of an adapter in one embodiment of the present invention;

[0020] Figure 3 is a schematic diagram of the installation of a wheel speed sensor in one embodiment of the present invention;

[0021] Figure 4 is a schematic diagram of the installation of a tire pressure transducer and a wheel speed sensor in one embodiment of the present invention;

[0022] Figure 5 is a schematic diagram of the installation of a wheel speed sensor and a brake cooling motor in one embodiment of the present invention;

[0023] Figure 6 It is a schematic diagram of the installation of a tire pressure converter, a wheel speed sensor and a brake cooling motor in one embodiment of the present invention.

[0024] In the figure: 1-installation sleeve; 2-tire pressure converter; 3-wheel speed sensor; 4-brake cooling motor; 5-output shaft; 6-first installation hole; 7-limiting groove; 8-second installation hole; 9-third installation hole; 10-first fixing hole position; 11-second fixing hole position; 12-weight reduction hole groove. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 6 As shown, this embodiment provides an aircraft main landing gear axle adapter that can be adapted to various aircraft models, including a mounting sleeve 1, both ends of the mounting sleeve 1 are open, the mounting sleeve 1 is provided with a first mounting position, a second mounting position, a third mounting position and a fourth mounting position, the first mounting position is used to install the axle of the main landing gear, and the mounting sleeve 1 is arranged on the inner side of the axle, and the mounting sleeve 1 is fixed inside the axle.

[0026] The second mounting position is used to mount the tire pressure transducer 2, and the tire pressure transducer 2 is arranged inside the mounting sleeve 1 and remains fixed. The third mounting position is used to mount the wheel speed sensor 3, and the wheel speed sensor 3 is arranged inside the mounting sleeve 1 and remains fixed. The fourth mounting position is used to mount the brake cooling motor 4, and the brake cooling motor 4 is arranged inside the mounting sleeve 1. The output shaft 5 of the brake cooling motor 4 passes through the wheel speed sensor 3 and the tire pressure transducer 2 and then extends to the outside of the mounting sleeve 1 to connect with the brake cooling fan. The brake cooling motor 4 drives the brake cooling fan to rotate, thereby realizing the aircraft brake cooling function.

[0027] The present invention designs an aircraft main landing gear axle adapter that can install tire pressure converter 2, wheel speed sensor 3, and brake cooling motor 4 in the axle to achieve universal optional installation. The adapter can adapt the tire pressure converter 2, wheel speed sensor 3, and brake cooling motor 4 designed in series to different aircraft models, and can also only retain the functional equipment required by the user according to user needs, and adapt to various situations. The present invention effectively solves the problem of current customized product design, makes the optional products universal and combined, and reduces the installation cost of the aircraft.

[0028] The mounting sleeve 1 of the present invention is made of 7075 aluminum alloy material. 7075 has good strength and light weight. The total length of the mounting sleeve 1 is 280 mm. To ensure that the 20G impact and corresponding vibration requirements are met, the wall thickness of the mounting sleeve 1 is not less than 5 mm. Considering the light weight of the adapter and the internal heat dissipation requirements, the mounting sleeve 1 is designed with a weight-reducing hole groove 12. Specifically, Figure 1 and Figure 2 shown.

[0029] In one embodiment, the first mounting position is provided with three first mounting holes 6, and the three first mounting holes 6 are evenly arranged along the circumference of the mounting sleeve 1, and the first mounting holes 6 are equipped with first mounting screws for connecting the wheel axle. The wheel axle is sleeved on the outside of the mounting sleeve 1, and the entire adapter is fixedly mounted to the wheel axle by the first mounting screws. Figure 1 As shown, the inner wall of the mounting sleeve 1 is provided with a limiting groove 7 connected to the first mounting hole 6, and the depth of the limiting groove 7 matches the height of the head of the first mounting screw. The limiting groove 7 is U-shaped, and the head of the first mounting screw is located in the limiting groove 7. The first mounting screw will not protrude from the inner wall of the mounting sleeve 1, and will not affect the installation and maintenance of the brake cooling motor 4, the wheel speed sensor 3 and the tire pressure converter 2.

[0030] In one embodiment, the second mounting position is provided with a plurality of second mounting holes 8, and the plurality of second mounting holes 8 are evenly arranged along the circumference of the mounting sleeve 1, and the second mounting holes 8 are equipped with second mounting screws for connecting the tire pressure transducer 2. Preferably, the second mounting position is provided with three second mounting holes 8, and the three second mounting holes 8 are evenly arranged along the circumference of the mounting sleeve 1, and the second mounting holes 8 are step holes. The tire pressure transducer 2 is arranged inside the mounting sleeve 1, and the second mounting screws extend into the second mounting holes 8 to fix the tire pressure transducer 2. It should be noted that if the tire pressure transducer 2 is not needed, the wheel speed sensor 3 can be placed in the second mounting position and fixed by the second mounting screws.

[0031] In one embodiment, the fourth mounting position is provided with a plurality of third mounting holes 9, and the plurality of third mounting holes 9 are evenly arranged along the circumference of the mounting sleeve 1, and the third mounting holes 9 are equipped with third mounting screws for connecting the brake cooling motor 4. Preferably, the fourth mounting position is provided with three third mounting holes 9, and the three third mounting holes 9 are evenly arranged along the circumference of the mounting sleeve 1, and the third mounting holes 9 are stepped holes. The brake cooling motor 4 is arranged inside the mounting sleeve 1, and the third mounting screws extend into the third mounting holes 9 to fix the brake cooling motor 4.

[0032] The wheel speed sensor 3 is arranged between the tire pressure converter 2 and the brake cooling motor 4, and the two sides of the wheel speed sensor 3 are respectively connected to the tire pressure converter 2 and the brake cooling motor 4. Specifically, the two sides of the wheel speed sensor 3 are respectively provided with a first connecting member and a second connecting member, and the first connecting member and the second connecting member are both flanges. The first connecting member is provided with a first fixing hole 10, and the first fixing hole 10 is equipped with a first connecting screw for connecting the tire pressure converter 2; the second connecting member is provided with a second fixing hole 11, and the second fixing hole 11 is equipped with a second connecting screw for connecting the brake cooling motor 4.

[0033] The wheel speed sensor 3 and the tire pressure transducer 2 are both hollow structures. The wheel speed sensor 3 and the tire pressure transducer 2 are inserted into the output shaft 5 of the brake cooling motor 4. Flanges can be installed on both sides of the wheel speed sensor 3. The tire pressure transducer 2 and the wheel speed sensor 3 are fixed by the first connecting screw, and the brake cooling motor 4 and the wheel speed sensor 3 are fixed by the second connecting screw. The assembly of the brake cooling motor 4, the wheel speed sensor 3 and the tire pressure transducer 2 is completed, and then the whole is installed in the installation sleeve 1, and then the brake cooling motor 4 and the tire pressure transducer 2 are fixed, and the brake cooling fan is installed on the output shaft 5 of the brake cooling motor 4.

[0034] The wheel speed sensor 3 is used to monitor the speed of the aircraft tire, the tire pressure converter 2 monitors the pressure of the aircraft tire, and the brake cooling motor 4 is used to drive the brake cooling fan to rotate, thereby generating an airflow for cooling the aircraft tire. The adapter of the present invention can effectively utilize the narrow space inside the axle of the main landing gear, integrate the aircraft tire speed detection function, the tire pressure monitoring function and the tire cooling function, and realize the maximum utilization of the internal space of the axle of the main landing gear.

[0035] The main landing gear axle adapter of the present invention is installed as follows:

[0036] 1) When the aircraft chooses to retain only the basic speed detection function, that is, only the wheel speed sensor 3 is installed, the installation diagram of the wheel speed sensor 3 in the adapter is as follows: Figure 3 shown.

[0037] 2) When the aircraft is only equipped with the tire pressure monitoring function, that is, only the tire pressure transducer 2 is installed, the installation diagram of the tire pressure transducer 2 and the wheel speed sensor 3 in the adapter is as follows: Figure 4 shown.

[0038] 3) When the aircraft is only equipped with speed detection and wheel cooling functions, the brake cooling motor 4 and the wheel speed sensor 3 are installed. The installation diagram of the wheel speed sensor 3 and the brake cooling motor 4 in the adapter is as follows: Figure 5 shown.

[0039] 4) When the aircraft is equipped with tire pressure monitoring, speed detection and wheel cooling functions, the installation diagram of the tire pressure converter 2, wheel speed sensor 3 and brake cooling motor 4 in the adapter is as follows: Figure 6 shown.

[0040] Since traditional aircraft landing gear axle products are all customized designs, there are many wastes in design costs and management costs. The adapter of the present invention can solve the customization problem and enable the axle products to be applied to models of different sizes with different requirements under a universal design, thereby reducing the aircraft installation design cost and management cost.

[0041] In the description of the present invention, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrated; may be mechanically connected or electrically connected; may be directly connected or indirectly connected through an intermediate medium, may be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood. In addition, the specific features, structures, etc. described in the embodiments are included in at least one embodiment. Under the condition that there is no contradiction, those skilled in the art may combine the features of different embodiments. The protection scope of the present invention is not limited to the above-mentioned specific embodiments. According to the basic technical concept of the present invention, the embodiments that can be associated with by ordinary technicians in this field without creative work all belong to the protection scope of the present invention.

Claims

1. An aircraft main landing gear axle adapter that can adapt to various aircraft models, characterized in that: The invention comprises a mounting sleeve (1), wherein the mounting sleeve (1) is provided with a first mounting position, a second mounting position, a third mounting position and a fourth mounting position, wherein the first mounting position is used for mounting the axle of the main landing gear, and the mounting sleeve (1) is arranged on the inner side of the axle; the second mounting position is used for mounting the tire pressure transducer (2), and the tire pressure transducer (2) is arranged on the inner side of the mounting sleeve (1); the third mounting position is used for mounting the wheel speed sensor (3), and the wheel speed sensor (3) is arranged on the inner side of the mounting sleeve (1); the fourth mounting position is used for mounting the brake cooling motor (4), and the brake cooling motor (4) is arranged on the inner side of the mounting sleeve (1), and the output shaft (5) of the brake cooling motor (4) penetrates the wheel speed sensor (3) and the tire pressure transducer (2) and then extends to the outer side of the mounting sleeve (1); The first mounting position is provided with a plurality of first mounting holes (6), and the plurality of first mounting holes (6) are evenly arranged along the circumference of the mounting sleeve (1), and the first mounting holes (6) are provided with first mounting screws for connecting the wheel axle; the inner wall of the mounting sleeve (1) is provided with a limiting groove (7) communicating with the first mounting hole (6), and the depth of the limiting groove (7) matches the height of the head of the first mounting screw.

2. The main landing gear axle adapter for aircrafts capable of adapting to various aircraft types according to claim 1, characterized in that: The second mounting position is provided with a plurality of second mounting holes (8), and the plurality of second mounting holes (8) are evenly arranged along the circumference of the mounting sleeve (1), and the second mounting holes (8) are provided with second mounting screws for connecting the tire pressure converter (2); the second mounting position is provided with three second mounting holes (8), and the second mounting holes (8) are stepped holes.

3. The main landing gear axle adapter for aircrafts capable of adapting to various aircraft types according to claim 1, characterized in that: The fourth mounting position is provided with a plurality of third mounting holes (9), and the plurality of third mounting holes (9) are evenly arranged along the circumference of the mounting sleeve (1), and the third mounting holes (9) are provided with third mounting screws for connecting the brake cooling motor (4).

4. The main landing gear axle adapter for aircrafts capable of adapting to various aircraft types according to claim 3, characterized in that: The fourth mounting position is provided with three third mounting holes (9), and the third mounting holes (9) are stepped holes.

5. The main landing gear axle adapter for aircrafts capable of adapting to various aircraft types according to claim 1, characterized in that: The wheel speed sensor (3) is arranged between the tire pressure converter (2) and the brake cooling motor (4), and two sides of the wheel speed sensor (3) are respectively connected to the tire pressure converter (2) and the brake cooling motor (4).

6. The main landing gear axle adapter for aircrafts capable of adapting to various aircraft types according to claim 5, characterized in that: The wheel speed sensor (3) is provided with a first connecting member and a second connecting member on both sides, respectively; the first connecting member is provided with a first fixing hole (10), and the first fixing hole (10) is provided with a first connecting screw for connecting to a tire pressure converter (2); the second connecting member is provided with a second fixing hole (11), and the second fixing hole (11) is provided with a second connecting screw for connecting to a brake cooling motor (4).

7. The main landing gear axle adapter for aircrafts capable of adapting to various aircraft types according to claim 1, characterized in that: A plurality of weight-reducing slots (12) are provided on the surface of the mounting sleeve (1).

8. The main landing gear axle adapter for aircrafts capable of adapting to various aircraft types according to claim 1, characterized in that: The installation sleeve (1) is made of 7075 aluminum alloy material; the wall thickness of the installation sleeve (1) is not less than 5 mm.

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