Connecting structure of aircraft aerial refueling device
By combining a three-section telescopic pipe structure with a motor-driven screw, and using a distance sensor to detect the docking position, the problem of difficult pipe docking during UAV aerial refueling is solved, achieving efficient pipe docking and improving refueling efficiency.
Patent Information
- Application Number
- CN202520200027.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-08
AI Technical Summary
During aerial refueling of drones, pipeline docking is challenging, and existing technologies struggle to achieve efficient docking.
It adopts a three-section telescopic tube structure and a motor-driven screw, and uses a distance sensor to detect the docking position to achieve precise docking between the oil receiving plug and the cam sleeve plug through threaded connection.
This technology enables efficient pipeline docking during drone aerial refueling, reducing operational complexity and improving refueling efficiency.
Smart Images
Figure CN223702953U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of aircraft aerial refueling, more particularly to a connecting structure of an aircraft aerial refueling device. BACKGROUND
[0002] Aerial refueling technology is a technology of supplementing fuel to other aircraft or helicopters by a tanker in flight, which can significantly improve the endurance of fighter aircraft and has an extremely important supporting role in strategic or tactical aviation troop operations. With the increasingly wide application of unmanned combat platforms in modern warfare, the improvement of performance indicators such as combat radius and endurance of the unmanned combat platforms has become a key requirement. Aerial refueling technology is an effective means to extend the range and loiter time of the aircraft. In the process of aerial refueling, the pipe needs to be connected. The pilot can adjust the connection position by himself, but the pipe connection of unmanned aerial refueling is difficult. Therefore, the utility model provides a connecting structure of an aircraft aerial refueling device. SUMMARY
[0003] In view of the problems mentioned in the above background technology, the utility model aims to provide a connecting structure of an aircraft aerial refueling device.
[0004] To solve the above problems, the utility model adopts the following technical scheme:
[0005] A connecting structure of an aircraft aerial refueling device, comprising a receiving pipe and a supply pipe, wherein the end of the supply pipe is provided with a sleeve joint, the end of the receiving pipe is fixedly connected with an outer pipe, the inner side of the outer pipe is sleeved with a middle pipe, the inner side of the middle pipe is sleeved with an inner pipe, the end of the inner pipe extends to the outside of the middle pipe and is fixedly connected with a receiving plug-in connector, the tail end of the receiving plug-in connector is fixedly connected with a telescopic oil guide hose, the end of the telescopic oil guide hose penetrates the inner cavities of the inner pipe, the middle pipe and the outer pipe and is connected with the end of the receiving pipe, the outer side of the outer pipe is provided with a detection mechanism, the outer side of the middle pipe is provided with an outer sliding groove, one end of the inner cavity of the outer sliding groove is fixedly installed with a first motor, the output shaft of the first motor is fixedly connected with a first screw rod, the end of the first screw rod is rotatably connected with the other end of the inner cavity of the outer sliding groove, the outer side of the first screw rod is threadedly sleeved with an outer sliding block, the side surface of the outer sliding block is connected with the inner wall of the outer pipe, the inner wall of the middle pipe is provided with an inner sliding groove, one end of the inner cavity of the inner sliding groove is fixedly installed with a second motor, the output shaft of the second motor is fixedly connected with a second screw rod, the end of the second screw rod is rotatably connected with the other end of the inner cavity of the inner sliding groove, the outer side of the second screw rod is threadedly sleeved with an inner sliding block, and the side surface of the inner sliding block is connected with the outer side surface of the inner pipe.
[0006] As a preferred scheme of the utility model, the detection mechanism includes the mounting ring of fixed sleeve on the outside of the outer pipe, a plurality of distance sensors are fixedly installed on the end face of the mounting ring, and the wiring pipe is fixedly connected on the mounting ring.
[0007] As a preferred scheme of the utility model, the outside surface of the middle pipe and the inner wall of the outer pipe are in close contact, and the inner wall of the middle pipe and the outside surface of the inner pipe are in close contact.
[0008] As a preferred scheme of the utility model, the inside of one end of the outer pipe is fixedly sleeved with a fixed ring, and the fixed ring is fixedly sleeved on the outside of one end of the telescopic oil guide hose.
[0009] As a preferred scheme of the utility model, the inner wall of the outer sliding groove and the two sides of the outer sliding block are in close contact.
[0010] As a preferred scheme of the utility model, the inner wall of the inner sliding groove and the two sides of the inner sliding block are in close contact.
[0011] The utility model has the advantages of:
[0012] (1) in the utility model, when aerial refueling of the unmanned aerial vehicle is needed, the oil receiving plug-in connector on the unmanned aerial vehicle and the sleeve joint on the oil supply machine are roughly concentric and aligned, the first screw rod and the second screw rod are driven to rotate by the first motor and the second motor respectively, the middle pipe, the inner pipe and the oil receiving plug-in connector are gradually close to the sleeve joint through the thread cooperation between the first screw rod and the outer sliding block, the inner pipe and the oil receiving plug-in connector are gradually close to the sleeve joint through the thread cooperation between the second screw rod and the inner sliding block, the oil receiving plug-in connector is inserted into the inside of the sleeve joint, the oil receiving plug-in connector is guided by the inclined surface of the inner wall of the sleeve joint at the same time, the oil receiving plug-in connector and the sleeve joint are connected, and the problem that the pipeline connection is difficult when the unmanned aerial vehicle is refueled is avoided.
[0013] (2) in the utility model, the distance between the oil receiving plug-in connector and the sleeve joint is detected by the distance sensor when the sleeve joint on the oil supply pipe and the oil receiving plug-in connector are connected through the cooperation of the mounting ring and the distance sensor, when the distance between the sleeve joint and the plurality of distance sensors is measured at the same time, it indicates that the outer pipe, the oil receiving plug-in connector and the sleeve joint are roughly concentrically arranged, at this moment, the oil receiving plug-in connector and the sleeve joint are connected through the three-section telescopic outer pipe, middle pipe and inner pipe, and the utility model has good practicability. ACCURACY OF DRAWINGS
[0014] Figure 1 It is the whole structure schematic view of the utility model;
[0015] Figure 2 It is the section view schematic view of the middle pipe in the utility model;
[0016] Figure 3 It is the structure schematic view of the pipe in the utility model;
[0017] Figure 4 It is the structure schematic view of the telescopic oil guide hose.
[0018] Mark explanation in the drawing:
[0019] 1, oil receiving pipe; 2, oil supply pipe; 3, bushing joint; 4, outer pipe; 5, middle pipe; 6, inner pipe; 7, oil receiving plug joint; 8, telescopic oil guide hose; 9, fixing ring; 10, outer sliding groove; 11, first motor; 12, first screw rod; 13, outer sliding block; 14, inner sliding groove; 15, second motor; 16, second screw rod; 17, inner sliding block; 18, detection mechanism; 19, mounting ring; 20, distance sensor; 21, wiring pipe. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, and all other embodiments obtained by those skilled in the art without creative labor based on the embodiments in the utility model belong to the protection scope of the utility model.
[0021] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0022] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0023] Embodiment:
[0024] Please refer to Figures 1-4The utility model provides a connecting structure of an aircraft aerial refueling device, including the oil receiving pipe 1 and the oil supply pipe 2, the end of oil supply pipe 2 is provided with the sleeve joint 3, the end of oil receiving pipe 1 is fixedly connected with the outer tube 4, the inside of outer tube 4 is sleeved with the middle tube 5, the inside of middle tube 5 is sleeved with the inner tube 6, the end of inner tube 6 extends to the outside of middle tube 5 and is fixedly connected with the oil receiving plug connector 7, the tail end of oil receiving plug connector 7 is fixedly connected with the telescopic oil guide hose 8, the end of telescopic oil guide hose 8 penetrates the inner chamber of inner tube 6, middle tube 5 and outer tube 4 and is connected with the end of oil receiving pipe 1, the outside of outer tube 4 is provided with detection mechanism 18, the outside of middle tube 5 is provided with the outer slide groove 10, one end of the inner chamber of outer slide groove 10 is fixedly installed with first motor 11, the output shaft of first motor 11 is fixedly connected with first screw rod 12, the end of first screw rod 12 is rotatably connected with the other end of the inner chamber of outer slide groove 10, the outside of first screw rod 12 is threadedly sleeved with outer sliding block 13, the side of outer sliding block 13 is connected with the inner wall of outer tube 4, the inner wall of middle tube 5 is provided with the inner slide groove 14, one end of the inner chamber of inner slide groove 14 is fixedly installed with second motor 15, the output shaft of second motor 15 is fixedly connected with second screw rod 16, the end of second screw rod 16 is rotatably connected with the other end of the inner chamber of inner slide groove 14, the outside of second screw rod 16 is threadedly sleeved with inner sliding block 17, the side of inner sliding block 17 is connected with the outside of inner tube 6.
[0025] In the embodiment, the length of the outer tube 4, the middle tube 5 and the inner tube 6 is between 650 mm and 700 mm, and the outer tube 4, the middle tube 5 and the inner tube 6 can reach 1.5 m long after being fully telescoped. In addition, the outer tube 4, the middle tube 5 and the inner tube 6 can be supported by titanium alloy material so as to adapt to different environments and save the fuel consumption of the unmanned aerial vehicle.
[0026] Specifically, refer to Figure 1 and Figure 2 The detection mechanism 18 includes a mounting ring 19 fixedly sleeved on the outside of the outer tube 4, and a plurality of distance sensors 20 are fixedly installed on the end surface of the mounting ring 19. A wiring tube 21 is fixedly connected to the mounting ring 19.
[0027] In the embodiment, the inside of the wiring tube 21 is used to pass through control lines and power supply lines.
[0028] Specifically, refer to Figure 2 The outside of the middle tube 5 is attached to the inner wall of the outer tube 4, and the inner wall of the middle tube 5 is attached to the outside of the inner tube 6.
[0029] In the embodiment, the stability of the mutual sleeving of the outer tube 4, the middle tube 5 and the inner tube 6 is ensured.
[0030] Specifically, refer to Figure 2 and Figure 4 The inside of one end of the outer tube 4 is fixedly sleeved with a fixed ring 9, and the fixed ring 9 is fixedly sleeved on the outside of one end of the telescopic oil guide hose 8.
[0031] In the embodiment, the outer tube 4 and the telescopic oil guide hose 8 are connected by the fixing ring 9, so that the telescopic oil guide hose 8 can be smoothly stretched and contracted inside the outer tube 4, the middle tube 5 and the inner tube 6.
[0032] Specifically, please refer to Figure 2 The inner wall of the outer sliding groove 10 and the two sides of the outer sliding block 13 are in close contact.
[0033] In the embodiment, the inner wall of the outer sliding groove 10 limits the outer sliding block 13, so that the outer sliding block 13 can only move along the axial direction of the first screw rod 12.
[0034] Specifically, please refer to Figure 2 The inner wall of the inner sliding groove 14 and the two sides of the inner sliding block 17 are in close contact.
[0035] In the embodiment, the inner wall of the inner sliding groove 14 limits the inner sliding block 17, so that the inner sliding block 17 can only move along the axial direction of the second screw rod 16.
[0036] Working principle: when the unmanned aerial vehicle is refueled in the air, first, the oil supply machine releases the oil supply pipe 2 and the sleeve joint 3 from the rear, then controls the unmanned aerial vehicle to gradually approach the sleeve joint 3 behind the oil supply machine, and at the same time, detects the sleeve joint 3 by using the plurality of distance sensors 20 on the mounting ring 19, when the plurality of distance sensors 20 simultaneously measure the distance between the sleeve joint 3, it indicates that the outer tube 4 and the oil receiving plug-in connector 7 are arranged in the same concentric arrangement, then starts the first motor 11 and the second motor 15, drives the first screw rod 12 to rotate by the first motor 11, drives the middle tube 5, the inner tube 6 and the oil receiving plug-in connector 7 to gradually approach the sleeve joint 3 by the thread cooperation between the first screw rod 12 and the outer sliding block 13, drives the second screw rod 16 to rotate by the second motor 15, drives the inner tube 6 and the oil receiving plug-in connector 7 to gradually approach the sleeve joint 3 by the thread cooperation between the second screw rod 16 and the inner sliding block 17, so that the oil receiving plug-in connector 7 is inserted into the inside of the sleeve joint 3, at the same time, the oil receiving plug-in connector 7 is guided by the inclined surface of the inner wall of the sleeve joint 3, until the oil receiving plug-in connector 7 and the sleeve joint 3 are connected, in addition, the telescopic oil guide hose 8 is stretched during the outward movement of the middle tube 5 and the inner tube 6, finally, the oil is driven from the oil supply pipe 2, the oil receiving plug-in connector 7, the telescopic oil guide hose 8 and the oil receiving pipe 1 into the unmanned aerial vehicle by using the driving device in the oil supply machine.
[0037] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and improvement concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A connection structure of an aircraft in-flight refueling device comprising a receiving pipe (1) and a supplying pipe (2), characterized in that: The end of the oil supply pipe (2) is provided with a sleeve joint (3), the end of the oil receiving pipe (1) is fixedly connected with an outer pipe (4), the inner side of the outer pipe (4) is sleeved with a middle pipe (5), the inner side of the middle pipe (5) is sleeved with an inner pipe (6), the end of the inner pipe (6) extends to the outside of the middle pipe (5) and is fixedly connected with an oil receiving plug-in connector (7), the tail end of the oil receiving plug-in connector (7) is fixedly connected with a telescopic oil guide hose (8), the end of the telescopic oil guide hose (8) penetrates the inner cavities of the inner pipe (6), the middle pipe (5) and the outer pipe (4) and is connected with the end of the oil receiving pipe (1), the outer side of the outer pipe (4) is provided with a detection mechanism (18), the outer side of the middle pipe (5) is provided with an outer sliding groove (10), one end of the inner cavity of the outer sliding groove (10) is fixedly installed with a first motor (11), the output shaft of the first motor (11) is fixedly connected with a first screw rod (12), the end of the first screw rod (12) is rotatably connected with the other end of the inner cavity of the outer sliding groove (10), the outer side of the first screw rod (12) is threadedly sleeved with an outer sliding block (13), the side surface of the outer sliding block (13) is connected with the inner wall of the outer pipe (4), the inner wall of the middle pipe (5) is provided with an inner sliding groove (14), one end of the inner cavity of the inner sliding groove (14) is fixedly installed with a second motor (15), the output shaft of the second motor (15) is fixedly connected with a second screw rod (16), the end of the second screw rod (16) is rotatably connected with the other end of the inner cavity of the inner sliding groove (14), the outer side of the second screw rod (16) is threadedly sleeved with an inner sliding block (17), the side surface of the inner sliding block (17) is connected with the outer side surface of the inner pipe (6).
2. The connection structure of an aircraft in-flight refueling device according to claim 1, characterized in that: The detection mechanism (18) comprises a mounting ring (19) fixedly sleeved on the outer side of the outer pipe (4), a plurality of distance sensors (20) are fixedly installed on the end surface of the mounting ring (19), and a wiring pipe (21) is fixedly connected on the mounting ring (19).
3. The connection structure of an aircraft in-flight refueling device according to claim 1, characterized in that: The outer side surface of the middle pipe (5) is attached to the inner wall of the outer pipe (4), and the inner wall of the middle pipe (5) is attached to the outer side surface of the inner pipe (6).
4. The connection structure of an aircraft in-flight refueling device according to claim 1, characterized in that: The inner side of one end of the outer pipe (4) is fixedly sleeved with a fixed ring (9), and the fixed ring (9) is fixedly sleeved on the outer side of one end of the telescopic oil guide hose (8).
5. The connection structure of an aircraft in-flight refueling device according to claim 1, characterized in that: The inner wall of the outer sliding groove (10) is attached to the two side surfaces of the outer sliding block (13).
6. The connection structure of an aircraft in-flight refueling device according to claim 1, characterized in that: The inner wall of the inner sliding groove (14) is attached to the two side surfaces of the inner sliding block (17).