Platform refueling auxiliary system of aircraft refueling vehicle and use method of platform refueling auxiliary system

Abstract

The invention discloses an aircraft refueling vehicle platform refueling auxiliary system and a using method thereof, and relates to the technical field of aircraft refueling equipment. In order to overcome the defects that when an existing aircraft refueling truck is in butt joint with an aircraft refueling connector and an aircraft refueling port, the existing aircraft refueling truck mainly depends on manual work, the labor intensity is high, a refueling worker is prone to fatigue, and then the operation risk is increased, a lifting main board is fixed to a refueling truck platform, and a power assisting arm is fixed to the upper end of the lifting main board; and the driving system is used for controlling the lifting of the lifting mainboard and controlling the rotation and pitching angles of the power-assisted arm. The auxiliary positioning and supporting device is mainly used for auxiliary positioning and supporting in the process of manually butting the aircraft refueling port and the refueling connector.

Description

Technical Field

[0001] The present invention relates to the technical field of aircraft refueling equipment, and particularly to an aircraft refueling vehicle platform refueling auxiliary system and a method for using the same. Background Art

[0002] In the aviation field, aircraft refueling operation is a key link to ensure the normal operation of flights. When traditional aircraft refueling vehicles perform refueling operations, they mainly rely on manual docking of the aircraft refueling connector and the aircraft fuel filler port. The weight of the platform refueling connector and the hose is about 17 kg. During the refueling process, the refueling operator needs to lift the refueling connector and the hose by 2 m to complete the docking work between the aircraft refueling connector and the aircraft fuel filler port. This process is not only cumbersome, but also has extremely high labor intensity, which easily causes fatigue of the refueling operator, thereby increasing the operation risk. At the same time, in cold weather, the hose hardens, making the docking of the refueling connector more difficult.

[0003] With the aggravation of the aging problem of airport personnel, many front-line employees are older. Some refueling operators are difficult to undertake the high-intensity and high-requirement aviation fuel filling work due to reasons such as job burnout and physical health. In addition, the instability of manual operation may also lead to flight delays and backlogs, affecting the overall operation efficiency of the airport.

[0004] Therefore, there is a need for an aircraft refueling vehicle platform refueling auxiliary system and a method for using the same that can reduce the labor intensity of operators, improve the disassembly and installation efficiency of refueling connectors, reduce operation risks. Summary of the Invention

[0005] The purpose of the present invention is to solve the defect that existing aircraft refueling vehicles mainly rely on manual labor when docking the aircraft refueling connector and the aircraft fuel filler port, with extremely high labor intensity, which easily causes fatigue of the refueling operator, thereby increasing the operation risk. The present invention provides an aircraft refueling vehicle platform refueling auxiliary system and a method for using the same that can reduce the labor intensity of operators, improve the disassembly and installation efficiency of refueling connectors, reduce operation risks, meet the needs of the changing airport personnel structure, and ensure the efficient and stable operation of the airport.

[0006] An aircraft refueling vehicle platform refueling auxiliary system described in the present invention includes a lifting main board, a power arm, and a drive system. The lifting main board is fixed on the refueling vehicle platform, the power arm is fixed at the upper end of the lifting main board, and the drive system is used to control the lifting of the lifting main board and the rotation and pitching angles of the power arm.

[0007] Furthermore: A joint mechanism is further provided between the power arm and the lifting main board, and the joint mechanism is used to control the rotation angle and pitching angle of the power arm according to the control signal of the drive system.

[0008] Further: The lifting main board includes a lead screw and nut pair and a main board body. The lead screw and nut pair is used to connect the main board body to the refueling vehicle platform, and the lead screw and nut pair controls the lifting of the main board body according to the instructions of the drive system.

[0009] Further: The lifting main board further includes guide rails. The guide rails are fixed on the refueling vehicle platform, and the main board body is provided with protrusions matching the guide rails for limiting the main board body during the up and down movement.

[0010] Further: The assisting arm includes a main arm and a sub - arm. A joint mechanism is provided between the main arm and the lifting main board, and a joint mechanism is provided between the sub - arm and the lifting main board. The joint mechanism is used to control the rotation angle and pitching angle of the main arm or the sub - arm.

[0011] Further: The drive system includes a drive mechanism and a pneumatic motor. The output shaft of the pneumatic motor is connected to the lifting main board, and the drive mechanism is used to control the lifting of the lifting main board by driving the pneumatic motor to rotate.

[0012] Further: An emergency recovery structure is further included. The emergency recovery structure is used to recover the assisting arm according to an abnormal signal.

[0013] A usage method of the refueling assistance system based on the aircraft refueling vehicle platform described in the present invention includes the following steps:

[0014] S1. Press down the assisting arm to fix the refueling connector on the assisting arm;

[0015] S2. Control the lifting main board to lift to a preset height through the drive system;

[0016] S3. Control the rotation and pitching angles of the assisting arm through the drive system to make the assisting arm located below the aircraft refueling connector;

[0017] S4. Control the rotation and pitching angles of the assisting arm through the drive system to move the aircraft refueling connector on the assisting arm below the fuel filling port;

[0018] S5. Adjust the assisting arm to achieve the docking of the refueling connector and the fuel filling port.

[0019] Further: In S2, the preset height is set according to the vertical distance between the fuel filling port and the lifting platform of the refueling vehicle.

[0020] Further: In S5, after the refueling connector moves below the fuel filling port, the assisting arm is lifted upward, so that the refueling connector is docked with the fuel filling port. After locking the refueling connector by rotating the refueling connector, refueling starts.

[0021] The beneficial effects of the present invention include:

[0022] Reduce labor intensity: By means of the assisting arm to overcome the weight of the refueling connector and the rubber hose, the fueler does not need to perform a large amount of physical labor, greatly reducing the labor intensity and avoiding the harm to the body caused by continuously holding heavy objects.

[0023] Enhance safety: By adjusting the assisting arm, the risks such as shaking and collision during the lifting process are effectively reduced, potential safety hazards are lowered, and the safety of personnel and equipment is ensured.

[0024] Strong adaptability: This auxiliary system has wide compatibility and can be applied to all pipeline refueling vehicles and tanker refueling vehicles with platform lifting functions. Moreover, the technical principle and design concept are universal and can be applied to all aircraft refueling vehicles after appropriate adjustment and optimization. At the same time, it can adapt to different airport environments and operating conditions and can operate stably and reliably under harsh climate conditions such as high temperature, low temperature or strong wind. Brief Description of the Drawings

[0025] Figure 1 is a schematic diagram of the recovery state of the auxiliary system;

[0026] Figure 2 is Figure 1 a side view of the recovery state of the auxiliary system in

[0027] Figure 3 is a schematic diagram of the auxiliary system at the highest point;

[0028] Figure 4 is Figure 3 a side view of the auxiliary system at the highest point in

[0029] Figure 5 is a sectional view of the assisting spring and the fuel gun base;

[0030] In the figure, 1, lifting main board; 101, guide rail; 102, lead screw and nut pair; 103, main board body; 2, main arm; 3, sub-arm; 4, fuel hose fixing device; 5, joint mechanism; 6, pneumatic motor; 601, motor fixing plate; 7, fuel gun base; 701, universal shaft fine adjustment mechanism; 8, assisting spring; 9, pin; 10, belt. Detailed Embodiment

[0031] The following are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. The following embodiments are only used to explain the present invention and cannot be construed as a limitation to the present invention. The protection scope of the present invention should be subject to the protection scope of the claims. The embodiments of the present invention are described in detail below. For the convenience of describing the present invention and simplifying the description, the technical terms used in the specification of the present invention should be interpreted in a broad sense, including but not limited to conventional replacement schemes not mentioned in this application, and including both direct implementation methods and indirect implementation methods.

[0032] Embodiment 1

[0033] Combined with Figures 1 - 5 To illustrate this embodiment, a refueling assistance system for an aircraft refueling vehicle platform disclosed in this embodiment includes a lifting main board 1, a boosting arm, and a driving system. The lifting main board 1 is fixed on the refueling vehicle platform, the boosting arm is fixed to the upper end of the lifting main board 1, and the driving system is used to control the lifting of the lifting main board 1 and the rotation and pitching angles of the boosting arm.

[0034] As Figure 1 And Figure 2 Shown, a joint mechanism 5 is further provided between the boosting arm and the lifting main board 1. The joint mechanism 5 is used to control the rotation angle and pitching angle of the boosting arm according to the control signal of the driving system. The joint mechanism 5 includes a rotating device and a pitching device. The rotating device uses a rotating bearing and can realize the 360-degree rotation of the main arm 2 around the lifting main board 1, and can also realize the 360-degree rotation of the sub-arm 3 around the main arm 2. The pitching device includes a nitrogen boosting spring 8 and a gravity overcoming adjustment device, and realizes the gravity overcoming adjustment by adjusting the relative angle between the nitrogen boosting spring 8 and the boosting arm. The pitching device is used to ensure the flexibility of the main arm 2 and the sub-arm 3, so that the refueling connector can accurately dock with the aircraft refueling port.

[0035] The lifting main board 1 includes a lead screw and nut pair 102 and a main board body 103. The lead screw and nut pair 102 is used to connect the main board body 103 to the refueling vehicle platform, and the lead screw and nut pair 102 controls the lifting of the main board body 103 according to the instructions of the driving system. The main board body 103 is installed on one side of the refueling vehicle platform by means of bolts or the like, and is used to provide stable support for the entire auxiliary system.

[0036] In the lead screw and nut pair 102, the lower end of the lead screw is installed on the refueling vehicle platform, the upper end of the lead screw is connected to the output shaft of the pneumatic motor 6 through a belt 10, the nut is fixedly connected to the main board body 103, and when the lead screw rotates driven by the belt 10, the nut drives the main board body 103 to move up and down, so as to realize the function of lifting the lifting main board 1.

[0037] The lifting main board 1 further includes a guide rail 101 which is fixed on the refueling vehicle platform. The main board body 103 is provided with a protrusion matching the guide rail 101 for limiting the main board body 103 during the up and down movement. The guide rail 101 is used to prevent the lifting main board 1 from deforming during the up and down movement.

[0038] The assisting arm includes a main arm 2 and a sub-arm 3. A joint mechanism 5 is provided between the main arm 2 and the lifting main board 1. The joint mechanism 5 is used to control the rotation angle and pitching angle of the main arm 2 or the sub-arm 3. The sub-arm 3 is connected to the lifting main board 1 through the joint mechanism 5. The sub-arm 3 is made of high-strength and lightweight materials to ensure sufficient strength and stability when bearing the weight of the refueling connector and the hose, while reducing the overall weight. Both the main arm 2 and the sub-arm 3 are set as adjustable structures to adapt to the weights of the refueling connectors and refueling hoses equipped on different aircraft refueling vehicles. An angle-adjustable refueling gun base 7 is further provided at the end of the sub-arm 3 to adjust the vertical angle of the main arm 2 relative to the aircraft refueling port. The ends of the main arm 2 and the sub-arm 3 are connected through the joint mechanism 5, thereby further increasing the operation range and flexibility of the sub-arm 3. The main arm 2 is a structure capable of providing assistance. The main arm 2 is connected to the lifting main board 1 through a pitching device, and the pitching device can adjust the pitching angle of the main arm 2. The sub-arm 3 is also a structure capable of providing assistance, and its principle is similar to that of the main arm 2. The sub-arm 3 is connected to the end of the main arm 2 through a pitching device to adjust the angle of the sub-arm 3 relative to the main arm 2.

[0039] An angle-adjustable refueling gun base 7 is further provided at the end of the sub-arm 3 for fixing the aircraft refueling connector and capable of finely adjusting the attitude of the refueling connector to ensure that the refueling connector accurately aligns with the aircraft refueling port. This device fixes the refueling hose by mechanical clamping and through the refueling gun base hanging at the end of the sub-arm 3.

[0040] As Figure 5 shown, an assisting spring 8 is arranged inside the main arm 2, and the same assisting spring is arranged inside the sub-arm. A universal shaft fine-tuning mechanism 701 is arranged inside the refueling gun base 7. A universal bearing is further arranged between the end of the sub-arm 3 and the refueling gun base 7 to ensure that while the refueling gun base 7 can rotate, it can also perform fine-tuning in the up and down pitching directions. The refueling hose fixing device 4 is installed at the connection of the refueling hose and the refueling connector for installing the refueling hose on the refueling gun base 7. The universal shaft fine-tuning mechanism 701 is arranged below the inside of the refueling gun base 7 to achieve small displacements and angle adjustments of the refueling hose fixed in the refueling gun base 7 in the X, Y, and Z directions.

[0041] The drive system includes a drive mechanism and a pneumatic motor 6. The output shaft of the pneumatic motor 6 is connected to the lifting main board 1, and the drive mechanism is used to control the lifting of the lifting main board 1 by driving the pneumatic motor 6 to rotate. The drive shaft of the pneumatic motor 6 is connected to the lead screw and nut pair 102 through a belt 10, which is used to drive the lead screw to rotate, so that the lifting main board 1 fixed on the nut moves up and down, enabling the assisting arm to move up and down around the vertical direction, thereby making up for the working heights of fueling operators of different heights. The pneumatic motor 6 is fixed on the motor fixing plate 601, and the motor fixing plate 601 is arranged on one side of the main board body 103.

[0042] It further includes an emergency recovery structure, which is used to recover the assisting arm according to an abnormal signal. The emergency recovery structure is used to quickly reset the assisting arm in case of an emergency to ensure the safety of personnel and equipment. The emergency recovery structure controls the downward movement of the nut by removing the air inlet pipe of the pneumatic motor 6 and rotating the lead screw with a wrench.

[0043] This auxiliary system is mainly used to assist the aircraft fueling operator to complete the docking of the aircraft fueling connector and the aircraft fueling port, and can complete the docking of the aircraft fueling connector and the aircraft fueling port with less effort.

[0044] The aircraft refueling vehicle platform fueling auxiliary system described in this embodiment is used for the operation of the aircraft refueling vehicle platform, is in direct contact with the aviation kerosene pipeline, and is safer to be driven by the pneumatic motor 6, avoiding potential safety hazards caused by electrical explosion protection. Both the reliability and practicality are relatively high. Due to operation specification restrictions, it is currently impossible to promote fully automatic docking refueling operations. Through the semi-mechanical design in this embodiment, the failure rate of each component in the auxiliary system is low; through designs such as separable hooks and assisting springs 8, the operation is more convenient and the operation efficiency is higher.

[0045] The aircraft refueling vehicle platform fueling auxiliary system described in this embodiment is lifted to a specified height by the pneumatic motor 6 after hanging the fueling connector, and the remaining height is completed by the assisting spring 8 and the assisting force of the fueling operator to dock with the aircraft fueling port, effectively preventing situations such as mechanical failures scratching the aircraft, with a higher safety factor and being more controllable.

[0046] Embodiment 2

[0047] This embodiment is described in combination with Embodiment 1. A method for using an aircraft refueling vehicle platform fueling auxiliary system disclosed in this embodiment includes the following steps:

[0048] S1. Unlock the auxiliary system, press down the fueling connector to fix the fueling connector on the assisting arm; for example, fix it on the fuel gun base 7 at the end of the secondary arm 3.

[0049] S2. The operator stands on the refueling truck platform and controls the lifting main board 1 to be lifted to a preset height through the driving system; in S2, the preset height is set according to the vertical distance between the refueling port and the lifting platform of the refueling truck, and it is best that the refueling connector is not higher than the refueling port.

[0050] S3, controlling the rotation and pitch angle of the booster arm through the drive system so that the booster arm is located below the aircraft refueling connector;

[0051] S4, controlling the rotation and pitch angle of the booster arm through the drive system, so that the aircraft refueling connector on the booster arm moves to below the refueling port; Figures 3 - 5 As shown, the refueling joint on the dragging jib 3 is moved horizontally to the bottom of the refueling port, and lifted upward to the height of the refueling port. The refueling joint is connected to the pitching device of the jib 3 through the latch 9, and the vertical angle is adjusted to dock with the refueling port;

[0052] S5. Adjust the booster arm to achieve docking between the refueling connector and the refueling port. Rotate the refueling connector through the universal bearing of the refueling connector to lock it with the refueling port; operate the lifting switch of the driving mechanism to lower the lifting main board 1 and reset the main arm 2 and auxiliary arm 3 of the auxiliary system;

[0053] In S5, after the refueling connector moves to the bottom of the refueling port, the booster arm is lifted upwards so that the refueling connector is docked with the refueling port, and refueling is started after the refueling connector and the refueling port are locked by rotating the refueling connector.

[0054] Similarly, use the above steps to dock all the refueling connectors that need to be docked, then reset the auxiliary system, and use the limit pin to lock the power-assisting arm. You can start refueling after docking one refueling connector, or you can start refueling after all the refueling connectors are fixed.

[0055] When the refueling connector is removed from the refueling port, it is easier to remove the refueling connector and the hose due to their own weight, so there is no need to use a booster arm.

[0056] Installation and debugging: Install the manufactured booster arm on the aircraft refueling truck lifting platform and assemble it according to the design requirements. After the installation is completed, conduct comprehensive debugging to test the boosting effect of the booster spring 8, the connection firmness of each component, etc. By simulating different operating scenarios, the booster arm is optimized to ensure its performance reaches the best state.

[0057] Before the vehicle is put into use, professional training is provided to the refuelers to familiarize them with the structure, function and use of the power-assist arm. The training content includes the correct operation process, safety precautions, troubleshooting of common faults, etc. Through training, it is ensured that the refuelers can skillfully and safely use the power-assist arm for refueling operations.

Claims

1. An aircraft refueling vehicle platform refueling auxiliary system, characterized in that, It includes a lifting main board (1), a boosting arm and a driving system. The lifting main board (1) is fixed on the refueling vehicle platform. The boosting arm is fixed at the upper end of the lifting main board (1). The driving system is used to control the lifting of the lifting main board (1) and the rotation and pitching angles of the boosting arm.

2. The refueling assistance system for an aircraft refueling vehicle platform according to claim 1, characterized in that, A joint mechanism (5) is further arranged between the boosting arm and the lifting main board (1). The joint mechanism (5) is used to control the rotation angle and pitching angle of the boosting arm according to the control signal of the driving system.

3. The fueling assistance system for an aircraft refueling vehicle platform according to claim 1, characterized in that, The lifting main board (1) includes a lead screw and nut pair (102) and a main board body (103). The lead screw and nut pair (102) is used to connect the main board body (103) with the refueling vehicle platform. The lead screw and nut pair (102) controls the lifting of the main board body (103) according to the instruction of the driving system.

4. The refueling assistance system for an aircraft refueling vehicle platform according to claim 3, characterized in that, The lifting main board (1) further includes a guide rail (101). The guide rail (101) is fixed on the refueling vehicle platform. The main board body (103) is provided with a protrusion matching the guide rail (101) for limiting the main board body (103) during the up and down movement.

5. The fueling assistance system for an aircraft refueling vehicle platform according to claim 1, wherein The boosting arm includes a main arm (2) and a sub-arm (3). A joint mechanism (5) is arranged between the main arm (2) and the lifting main board (1). A joint mechanism (5) is arranged between the sub-arm (3) and the lifting main board (1). The joint mechanism (5) is used to control the rotation angle and pitching angle of the main arm (2) or the sub-arm (3).

6. The refueling assistance system for an aircraft refueling vehicle platform according to claim 1, wherein, The driving system includes a driving mechanism and a pneumatic motor (6). The output shaft of the pneumatic motor (6) is connected with the lifting main board (1). The driving mechanism is used to control the lifting of the lifting main board (1) by driving the pneumatic motor (6) to rotate.

7. The fueling assistance system for an aircraft refueling vehicle platform according to claim 1, characterized in that, It further includes an emergency recovery structure which is used to recover the boosting arm according to an abnormal signal.

8. A method for using an aircraft refueling vehicle platform refueling assistance system according to any one of claims 1-7, characterized in that, It includes the following steps: S1. Press down the boosting arm to fix the refueling joint on the boosting arm. S2. Control the lifting main board (1) to lift to a preset height through the driving system. S3. Control the rotation and pitching angles of the boosting arm through the driving system to make the boosting arm located below the aircraft refueling joint. S4. Control the rotation and pitching angles of the boosting arm through the driving system to move the aircraft refueling joint on the boosting arm below the fuel filling port. S5. Adjust the boosting arm to realize the docking of the refueling joint and the fuel filling port.

9. The usage method of an aircraft refueling vehicle platform refueling assistance system according to claim 8, characterized in that, In S2, the preset height is set according to the vertical distance between the fuel filling port and the lifting platform of the refueling vehicle.

10. The method for using an aircraft refueling truck platform refueling assistance system according to claim 8, characterized in that, In S5, after the refueling joint moves below the fuel filling port, the boosting arm is lifted upward, so that the refueling joint is docked with the fuel filling port. After locking the refueling joint by rotating the refueling joint, refueling starts.

Images