Wing auxiliary fuel tank hanging device

Abstract

The utility model belongs to the technical field of ground equipment for airplanes, and particularly relates to a wing auxiliary fuel tank hanging device which comprises a vehicle frame, a lifting platform is installed at the top end of the vehicle frame, a hydraulic scissor support is assembled in the lifting platform, two symmetrical supporting plates are installed at the top end of the lifting platform, and the hydraulic scissor support is installed on the supporting plates. The wing auxiliary fuel tank comprises two supporting plates, arc-shaped openings of the supporting plates are provided with wing auxiliary fuel tank bodies, the top ends of the two supporting plates are provided with fixing plates, and the two sides of each fixing plate are connected with threaded rods in a penetrating and threaded mode. Then, the wing auxiliary fuel tank body is stably fixed to the top end of the lifting platform, and then the friction between the wing auxiliary fuel tank body and the supporting plate and the friction between the wing auxiliary fuel tank body and the fixing plate and the friction between the wing auxiliary fuel tank body and the extrusion plate are increased; the risk that the wing auxiliary fuel tank body slides and falls on the lifting platform due to transverse acting force generated by traction is reduced through friction force.

Description

Technical Field

[0001] The utility model belongs to the technical field of ground equipment for aircraft, and in particular relates to a wing auxiliary oil tank hanging device. Background Art

[0002] As the name suggests, the wing fuel tank mounting device is primarily used for mounting wing fuel tanks on military aircraft. It places the wing fuel tanks on a trailer and securely positions them on the aircraft's belly. It serves as a transport device and, using a hydraulic system, lifts the tanks to the precise position on the aircraft's wing, facilitating installation and commissioning. Application number CN201620630922.5 discloses a "wing fuel tank mounting device," a technology that is becoming increasingly mature. The device comprises a towbar, a vehicle body, a lift, a steering wheel, and a pallet. The towbar is connected to the front end of the vehicle body, and the lift is mounted on the vehicle body. The lift is a scissor-fork lift. The base of the rotating disc is mounted on the lift, which can rotate 360 degrees in the horizontal plane. The lift drives the rotating disc up and down, and the pallet is mounted on the rotating disc. The pallet is mounted on the rotating disc, with a horizontal axis disposed in the middle of the bottom of the pallet. The rotating disc is provided with two support bases. The pallet is mounted on the support base of the rotating disc via the horizontal axis, allowing the pallet to rotate about the horizontal axis. The utility model has the following advantages: the utility model device is quick and easy to operate in installing the auxiliary fuel tank, reduces the labor intensity of maintenance personnel, ensures the safety and reliability of installing the auxiliary fuel tank, and meets the needs of aircraft overhaul workshops and test flight maintenance work.

[0003] However, when the hanging device is in use, it needs to be towed by manpower or equipment, and the towing hanging device needs to stop after it moves to the specified position. When the hanging device stops, it will be affected by the traction force. The hanging device itself is limited by manpower or equipment, and then these traction forces will be transmitted to the wing auxiliary fuel tank fixed on the top. The wing auxiliary fuel tank is fixed by a safety belt. The force applied to the wing auxiliary fuel tank by the safety belt is longitudinal force, and the traction force is lateral force. Therefore, the safety belt alone cannot completely fix the wing auxiliary fuel tank, and the traction force easily causes the wing auxiliary fuel tank to slide and fall at the top of the device. Utility Model Content

[0004] The purpose of the present utility model is to provide a wing auxiliary fuel tank hanging device, which aims to solve the problem of the above-mentioned equipment in the prior art when in use. However, when in use, the hanging device needs to be towed by manual labor or equipment, and the towing hanging device needs to stop after walking to the specified position. When the hanging device stops, it will be affected by the traction force. Due to the limitation of manual labor or equipment, the hanging device itself will be transmitted to the wing auxiliary fuel tank fixed on the top. The wing auxiliary fuel tank is fixed by a safety belt. The force applied to the wing auxiliary fuel tank by the safety belt is longitudinal force fixation, and the traction force is a lateral force. Therefore, the safety belt alone cannot achieve complete fixation of the wing auxiliary fuel tank, and the traction force easily causes the wing auxiliary fuel tank to slide and fall at the top of the device.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wing auxiliary fuel tank mounting device, comprising a frame, a mounting plate connected to the bottom end of the frame, a universal wheel connected to the bottom end of the mounting plate, a traction connector installed at the front end of the frame, a lifting platform installed at the top end of the frame, a hydraulic scissor bracket installed inside the lifting platform, two symmetrical support plates installed at the top end of the lifting platform, the wing auxiliary fuel tank body is placed at the arc-shaped opening of the support plate, a fixing plate is provided at the top end of the two support plates, threaded rods are threadedly connected to the two sides of the fixing plate, and a safety belt is connected to the top end of the lifting platform.

[0006] As a preferred wing auxiliary fuel tank mounting device of the utility model, the bottom end of the threaded rod passes through the fixed plate and is threadedly connected to the support plate, and the wing auxiliary fuel tank body is fixedly connected between the support plate and the fixed plate through the threaded rod.

[0007] As a preferred wing auxiliary fuel tank mounting device of the utility model, the top surface of the lifting platform is provided with an extrusion plate, the top surface of the lifting platform is installed with a sleeve, the interior of the sleeve is equipped with a spring, and the top end of the spring is connected to a lifting column.

[0008] As a preferred embodiment of the wing auxiliary fuel tank mounting device of the present invention, the lifting column is elastically telescopically connected to the sleeve via a spring, and the top end of the lifting column is connected to the bottom end of the extrusion plate.

[0009] As a preferred embodiment of the wing auxiliary fuel tank mounting device of the present invention, an electric rod is mounted on the top surface of the mounting plate, and a telescopic end of the electric rod is connected to a supporting foot.

[0010] As a preferred embodiment of the wing auxiliary fuel tank mounting device of the present invention, the support foot is connected to the mounting plate by an electric rod to form a lifting connection.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model utilizes the cooperation between the support plate and the fixing plate, and then combines the cooperation of the extrusion plate to stably fix the wing auxiliary fuel tank body on the top of the lifting platform. Then, the friction between the wing auxiliary fuel tank body and the support plate and the fixing plate, as well as the friction between the wing auxiliary fuel tank body and the extrusion plate, is increased. In this way, when the hanging device is in use, the lateral force generated by traction is reduced by friction, so that the risk of the wing auxiliary fuel tank body sliding and falling on the lifting platform is reduced. At the same time, the support base is controlled by the electric rod to facilitate the use of the hanging device, and it is fixed after reaching the specified position, thereby improving the stability of the hanging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the main structure of the utility model when viewed from above;

[0017] Figure 4 This is a schematic diagram of the connection structure of the extruded plate of the present utility model.

[0018] In the figure: 1. Frame; 2. Mounting plate; 3. Universal wheel; 4. Electric rod; 5. Support foot; 6. Traction connector; 7. Lifting platform; 8. Hydraulic scissor bracket; 9. Support plate; 10. Fixing plate; 11. Threaded rod; 12. Safety belt; 13. Wing auxiliary fuel tank body; 14. Extrusion plate; 15. Sleeve; 16. Spring; 17. Lifting column. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0020] See also Figure 1-4The utility model provides the following technical solutions: a wing auxiliary fuel tank hanging device, including a frame 1, the bottom end of the frame 1 is connected to a mounting plate 2, the bottom end of the mounting plate 2 is connected to a universal wheel 3, the front end of the frame 1 is installed with a traction connecting piece 6, the top of the frame 1 is installed with a lifting platform 7, the interior of the lifting platform 7 is equipped with a hydraulic scissor bracket 8, the top of the lifting platform 7 is installed with two symmetrical support plates 9, the arc-shaped opening of the support plate 9 is placed with a wing auxiliary fuel tank body 13, the top of the two support plates 9 is provided with a fixing plate 10, the two sides of the fixing plate 10 are threadedly connected with threaded rods 11, and the top of the lifting platform 7 is connected with a safety belt 12.

[0021] In the preferred embodiment, the bottom end of the threaded rod 11 passes through the fixing plate 10 and is threadedly connected to the support plate 9 , and the wing auxiliary fuel tank body 13 is fixedly connected between the support plate 9 and the fixing plate 10 through the threaded rod 11 .

[0022] In the preferred embodiment, an extrusion plate 14 is provided on the top surface of the lifting platform 7 , a sleeve 15 is installed on the top surface of the lifting platform 7 , a spring 16 is assembled inside the sleeve 15 , and a lifting column 17 is connected to the top of the spring 16 .

[0023] In the preferred embodiment, the lifting column 17 is elastically telescopically connected to the sleeve 15 via the spring 16 , and the top end of the lifting column 17 is connected to the bottom end of the extrusion plate 14 .

[0024] In the embodiment, first, the hanging device is connected to the equipment or moved manually by the traction connection 6, and then moves forward through the universal wheel 3. The lifting platform 7 is a mature technology. The hydraulic cylinder on the hydraulic scissor bracket 8 is extended and retracted to push the hydraulic scissor bracket 8 to open, thereby lifting the lifting platform 7 upward;

[0025] The wing auxiliary fuel tank body 13 is placed in the arc-shaped opening after utilizing the arc-shaped support plate 9, and then the safety belt 12 is wrapped around the surface. Figure 1 and 2The connection method of the safety belt 12 is sufficient. When the wing auxiliary fuel tank body 13 is placed on the support plate 9, the extrusion plate 14 is squeezed, and then the extrusion plate 14 is forced to drive the lifting column 17 to retract into the sleeve 15. Then the spring 16 is squeezed by the lifting column 17 and begins to contract. At the same time, the elastic force of the spring 16 is used to keep the extrusion plate 14 in contact with the bottom end of the wing auxiliary fuel tank body 13. Finally, after the wing auxiliary fuel tank body 13 is placed, the fixing plate 10 and the threaded rod 11 are removed and the threaded rod 11 is rotated. The wing auxiliary fuel tank body 13 is inserted into the interior of the fixing plate 10 and passes through the fixing plate 10 to be connected to the threaded groove opened at the top of the support plate 9, thereby restraining the wing auxiliary fuel tank body 13 in the arc-shaped opening between the fixing plate 10 and the support plate 9. In this way, when the hanging device is in use, the wing auxiliary fuel tank body 13 will have friction with the support plate 9 and the fixing plate 10, as well as friction between the wing auxiliary fuel tank body 13 and the extrusion plate 14. The friction force reduces the lateral force generated by traction, causing the risk of the wing auxiliary fuel tank body 13 sliding and falling on the lifting platform 7. Example 2

[0026] See also Figure 1-4 An electric rod 4 is installed on the top surface of the mounting plate 2, and the telescopic end of the electric rod 4 is connected to a supporting foot 5.

[0027] In the preferred embodiment, the supporting foot 5 is connected to the mounting plate 2 via the electric rod 4 to form a lifting connection.

[0028] In the embodiment, according to the description of the above-mentioned embodiment 1, when the hanging device is used, the principle of electric start control of the electric rod 4 is utilized, and the principle of supporting the hanging device to prevent movement by the supporting base 5 is combined. This allows the hanging device to be easily operated when fixed. At the same time, the supporting base 5 facilitates the fixing of the hanging device by lifting and lowering the electric rod 4, thereby improving the stability of the hanging device and preventing the movement of the hanging device from affecting the fixation of the wing auxiliary fuel tank body 13 and the assembly work with the aircraft.

[0029] In summary, according to the description of Examples 1 and 2, the hanging device utilizes the cooperation between the support plate 9 and the fixed plate 10, combined with the cooperation of the extrusion plate 14, to stably fix the wing auxiliary fuel tank body 13 on the top of the lifting platform 7. Then, the wing auxiliary fuel tank body 13 increases the friction between the support plate 9 and the fixed plate 10, as well as the friction between the wing auxiliary fuel tank body 13 and the extrusion plate 14. In this way, when the hanging device is in use, the lateral force generated by traction is reduced by friction, so that the risk of the wing auxiliary fuel tank body 13 sliding and falling on the lifting platform 7 is reduced. At the same time, the supporting base 5 is controlled by the electric rod 4 to facilitate the use of the hanging device, and it is fixed after reaching the specified position, thereby improving the stability of the hanging device.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A wing auxiliary fuel tank mounting device, comprising a frame (1), characterized in that: The bottom end of the vehicle frame (1) is connected to a mounting plate (2), the bottom end of the mounting plate (2) is connected to a universal wheel (3), the front end of the vehicle frame (1) is installed with a traction connection member (6), the top end of the vehicle frame (1) is installed with a lifting platform (7), the interior of the lifting platform (7) is equipped with a hydraulic scissor bracket (8), the top end of the lifting platform (7) is installed with two symmetrical support plates (9), and the arc-shaped opening of the support plate (9) is placed with a wing auxiliary oil tank body (13); A fixing plate (10) is provided at the top of the two support plates (9), and threaded rods (11) are connected to the two sides of the fixing plate (10) through threads. A safety belt (12) is connected to the top of the lifting platform (7), and an extrusion plate (14) is provided on the top surface of the lifting platform (7). A sleeve (15) is installed on the top surface of the lifting platform (7), and a spring (16) is assembled inside the sleeve (15). The top of the spring (16) is connected to a lifting column (17).

2. The wing auxiliary fuel tank mounting device according to claim 1, characterized in that: The bottom end of the threaded rod (11) passes through the fixing plate (10) and is threadedly connected to the support plate (9), and the wing auxiliary oil tank body (13) is fixedly connected between the support plate (9) and the fixing plate (10) through the threaded rod (11).

3. The wing auxiliary fuel tank mounting device according to claim 1, characterized in that: The lifting column (17) is elastically telescopically connected to the sleeve (15) via a spring (16), and the top end of the lifting column (17) is connected to the bottom end of the extrusion plate (14).

4. The wing auxiliary fuel tank mounting device according to claim 1, characterized in that: An electric rod (4) is mounted on the top surface of the mounting plate (2), and a telescopic end of the electric rod (4) is connected to a supporting foot (5).

5. The wing auxiliary fuel tank mounting device according to claim 4, characterized in that: The supporting foot (5) is connected to the mounting plate (2) in a lifting manner via the electric rod (4).

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