A horizontal calibration device for aircraft maintenance operations

Abstract

The utility model belongs to the field of aircraft maintenance technology relates to a horizontal calibration device for aircraft maintenance operation. Including base and the support assembly of setting in the lower end of base, the support assembly is used for accurate height adjustment, still include the angle adjusting assembly of setting on the base, the angle adjusting assembly is used for realizing the adjustment of device angle. Through the accurate height adjustment of hydraulic module, cooperation angle adjusting assembly taper wheel and the thread engagement structure of ring shell, can adjust device angle, avoid artificial operation error. At the same time, the integrated electronic inclinometer of support block monitors the calibration angle, and the microprocessor can control the hydraulic pump and solenoid valve according to the sensor data, forming a closed-loop control, to ensure that the engine pylon and other key components are always in a precise level.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft maintenance technology and relates to a level calibration device for aircraft maintenance operations. Background Technology

[0002] Aircraft maintenance demands extremely high precision; even the slightest deviation can affect flight safety. During aircraft maintenance, the installation, adjustment, and testing of numerous components must be ensured to be precisely level. For example, if the engine pylon is not leveled, uneven stress on the engine will occur, affecting flight performance and safety.

[0003] Traditional calibration methods rely on human experience and simple tools, such as levels, which are not only inefficient but also susceptible to human error, making it difficult to guarantee calibration accuracy. Furthermore, aircraft have complex structures and diverse operating environments, making traditional methods unsuitable for space-constrained or special locations. Utility Model Content

[0004] Utility Model Purpose To address the above issues and overcome the limitations of existing technologies in meeting calibration requirements due to space constraints or special locations, this utility model device is provided.

[0005] Technical solution A horizontal calibration device for aircraft maintenance operations includes a base and a support assembly disposed at the lower end of the base for precise height adjustment; it also includes an angle adjustment assembly disposed on the base for adjusting the angle of the device.

[0006] Furthermore, the support assembly includes a hydraulic module, and the plurality of hydraulic modules are spaced apart at the bottom end of the base along the central axis of the base. One end of the hydraulic module is connected to a hydraulic pump through a conduit, and a solenoid valve is provided between the conduit and the hydraulic pump. The power end of the hydraulic module is fixedly connected to the bottom end of the base.

[0007] Furthermore, the angle adjustment assembly includes a support block, a ring shell, and a positioning block. The upper end of the base is provided with a sliding groove, the positioning block is fixedly connected inside the sliding groove, the support block is disposed on the positioning block, the ring shell is connected to the side of the support block by a fixing bolt, the bottom end of the ring shell is provided with a thread, a conical wheel that meshes with the thread is inserted into one side of the base, the other end of the conical wheel is fixedly connected to an adjusting rod, the upper end of the support block is provided with a baffle, and a laser sensor is clamped inside the baffle.

[0008] Furthermore, the support block has a closed working cavity inside, and several openings are provided on the side of the working cavity. A microprocessor is provided inside the working cavity, and an electronic inclinometer, a temperature sensor, and a pressure sensor are respectively installed in the openings. The electronic inclinometer, the temperature sensor, and the pressure sensor are electrically connected to the microprocessor through wires.

[0009] Furthermore, the hydraulic pump is electrically connected to the microprocessor via wires, and the solenoid valve is electrically connected to the microprocessor via wires.

[0010] Furthermore, the cross-section of the ring shell is L-shaped, and the upper part of the ring shell is fixedly connected to the side of the support block by a fixing bolt. The ring shell and the support block clamp the positioning block together.

[0011] Furthermore, the support block is made of quartz glass.

[0012] Technical effect (1) The hydraulic module enables precise height adjustment. Combined with the threaded engagement structure between the conical wheel and the ring shell in the angle adjustment assembly, the angle of the device can be adjusted, avoiding human error. At the same time, the electronic inclinometer integrated in the support block monitors and calibrates the angle. The microprocessor can control the hydraulic pump and solenoid valve based on the sensor data to form a closed-loop control, ensuring that key components such as the engine mount are always in a precise horizontal state. (2) The adjustment mechanism of the device does not require repeated manual adjustments. The combination of synchronous height adjustment of the hydraulic module and rapid angle adjustment of the angle adjustment component greatly shortens the calibration time and significantly improves the overall efficiency of aircraft maintenance compared to the traditional method of manual calibration using a level. In view of the complex structure and diverse working environment of aircraft, and to adapt to the height requirements of different sites, the angle adjustment component can be stably installed and achieve angle adjustment in areas with limited space through the cooperation of the slide and the positioning block, without relying on a specific flat site. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the overall structure of this utility model; Figure 3 This is a partial sectional view of the structure of this utility model; Figure 4 A schematic diagram of a conical wheel; Figure 5 This is a schematic diagram of the working chamber.

[0014] In the attached diagram: 1. Base, 2. Hydraulic module, 3. Support block, 4. Ring shell, 5. Positioning block, 6. Slide groove, 7. Thread, 8. Conical wheel, 9. Adjusting rod, 10. Enclosure, 11. Laser sensor, 12. Working chamber, 13. Opening, 14. Microprocessor, 15. Electronic inclinometer, 16. Temperature sensor, 17. Pressure sensor. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] The features and illustrative embodiments of various aspects of this utility model will now be described in detail. In the following detailed description, numerous specific details are set forth in order to provide a comprehensive understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it. This utility model is by no means limited to any specific setup and method set forth below, but covers any improvements, substitutions, and modifications to the structure, method, and device without departing from the spirit of this utility model. In the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring this utility model.

[0017] In the description of this utility model, it should be noted that the directions or positional relationships indicated by terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are based on these directions or positional relationships and are only used for the convenience of describing this utility model and simplifying the description. They should not be construed as limiting this utility model. In addition, the use of ordinal numbers (e.g., "first and second," etc.) is for distinguishing objects and is not limited to this order, and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly, encompassing both direct connection and indirect connection via an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0019] It should be noted that, where there is no conflict, the embodiments of this utility model and the features therein can be combined with each other, and the various embodiments can be referenced and cited in turn. The present utility model will now be described in detail with reference to and in conjunction with the embodiments.

[0020] like Figure 1As shown, a horizontal calibration device for aircraft maintenance operations includes a base 1 and a support assembly disposed at the lower end of the base 1, the support assembly being used to adjust the height; it also includes an angle adjustment assembly disposed on the base 1, the angle adjustment assembly being used to adjust the angle of the device.

[0021] The base 1 is made of aerospace-grade aluminum alloy to ensure stability and portability.

[0022] like Figure 1-2 As shown, the support assembly includes a hydraulic module 2. Several hydraulic modules 2 are spaced apart at the bottom end of the base 1 along the central axis of the base 1. One end of the hydraulic module 2 is connected to the hydraulic pump through a conduit. A solenoid valve is provided between the conduit and the hydraulic pump. The power end of the hydraulic module 2 is fixedly connected to the bottom end of the base 1.

[0023] Among them, the hydraulic module 2 at the lower end of the base 1 is controlled by a microprocessor to meet the calibration requirements in space-constrained or special locations.

[0024] like Figure 2-3 As shown in -4-5, the angle adjustment assembly includes a support block 3, an annular shell 4, and a positioning block 5. The upper end of the base 1 is provided with a sliding groove 6, the positioning block 5 is fixedly connected to the inside of the sliding groove 6, the support block 3 is set on the positioning block 5, the annular shell 4 is connected to the side of the support block 3 by a fixing bolt, the bottom end of the annular shell 4 is provided with a thread 7, a conical wheel 8 that meshes with the thread 7 is inserted on one side of the base 1, and an adjusting rod 9 is fixedly connected to the other end of the conical wheel 8. The upper end of the support block 3 is provided with a retaining wall 10, and a laser sensor 11 is installed inside the retaining wall 10.

[0025] The support block 3 has a closed working chamber 12 inside, and several openings 13 on the side of the working chamber 12. A microprocessor 14 is installed in the working chamber 12. An electronic inclinometer 15, a temperature sensor 16, and a pressure sensor 17 are respectively installed in the openings 13. The electronic inclinometer 15, the temperature sensor 16, and the pressure sensor 17 are electrically connected to the microprocessor 14 through wires. The hydraulic pump is electrically connected to the microprocessor 14 through wires. The solenoid valve is electrically connected to the microprocessor 14 through wires. The ring shell 4 has an L-shaped cross-section. The upper part of the ring shell 4 is fixedly connected to the side of the support block 3 through a fixing bolt. The ring shell 4 and the support block 3 clamp the positioning block 5. The support block 3 is made of granite plate. The temperature sensor and the pressure sensor 17 monitor the temperature and pressure. The microprocessor 14 controls the solenoid valve and the hydraulic pump.

[0026] The specific workflow is as follows: I. Equipment Preparation Stage Site placement: Place the leveling device stably on the target site required for aircraft maintenance operations, ensuring that there are no obvious obstacles under the base 1, and leave space for the height adjustment of the support components.

[0027] Equipment Inspection: Check whether the connections of each component of the device are secure, including the fixing bolt connection between the support block 3 and the ring shell 4, and the fixing between the conical wheel 8 and the adjusting rod 9. At the same time, check whether each sensor (electronic inclinometer 15, temperature sensor 16, air pressure sensor 17, laser sensor 11) is intact and without damage or looseness.

[0028] Power connection: Connect the device power supply to ensure that the microprocessor 14, hydraulic pump, solenoid valve and other electrical components can be powered and started normally.

[0029] II. Initial Level Monitoring Phase Sensor activation: After the microprocessor 14 is started, the electronic inclinometer 15, temperature sensor 16, and barometric pressure sensor 17 are automatically activated. The electronic inclinometer 15 begins to monitor the current tilt angle of the device, the temperature sensor 16 detects the ambient temperature, and the barometric pressure sensor 17 monitors the ambient air pressure, and transmits the data to the microprocessor 14 via wires.

[0030] III. Horizontal Adjustment Phase Adjustment command generation: If the microprocessor 14 determines that the device is not in a horizontal state based on the data of the electronic inclinometer 15, it generates a corresponding adjustment command in combination with the results of environmental factor analysis.

[0031] Hydraulic module adjustment: The microprocessor 14 controls the hydraulic pump to start and, by controlling the corresponding solenoid valves, causes the hydraulic pump to deliver hydraulic oil to the hydraulic modules 2 in the support assembly through conduits. Several hydraulic modules 2 are spaced apart along the central axis of the base 1, and extend or retract according to adjustment commands to adjust the height of the base 1 and achieve horizontal calibration of the device. During the adjustment process, the electronic inclinometer 15 monitors the changes in levelness and feeds the data back to the microprocessor 14.

[0032] Level confirmation: When the electronic inclinometer 15 detects that the device has reached a level state, the microprocessor 14 controls the hydraulic pump to stop working, the solenoid valve to close, and the hydraulic module 2 to maintain its current extension and retraction state, thus completing the automatic level adjustment.

[0033] IV. Laser Sensor Angle Adjustment Stage Demand assessment: Determine the required illumination angle for laser sensor 11 based on the specific calibration requirements of aircraft maintenance operations.

[0034] Angle adjustment operation: By rotating the adjusting rod 9, the conical wheel 8 fixed to it rotates. Since the conical wheel 8 meshes with the thread 7 at the bottom of the ring shell 4, the rotation of the conical wheel 8 will cause the ring shell 4 to shift. The ring shell 4 is connected to the side of the support block 3 by a fixing bolt, and the ring shell 4 and the support block 3 clamp the positioning block 5. The positioning block 5 is fixed in the sliding groove 6 at the upper end of the base 1. Therefore, the displacement of the ring shell 4 will cause the support block 3 to adjust its angle with the positioning block 5 as the reference, thereby adjusting the irradiation angle of the laser sensor 11 installed in the upper enclosure 10 of the support block 3.

[0035] Angle locking: After the laser sensor 11 is adjusted to the required angle, the adjustment rod 9 is stopped from rotating. The angle is locked by utilizing the meshing relationship between the conical wheel 8 and the thread 7, as well as the tightness of the connection of each component.

[0036] V. Calibration Operation Phase Laser emission and monitoring: Laser sensor 11 emits a laser beam to illuminate the aircraft components to be calibrated. Simultaneously, the laser interferometer equipped with the device measures the distance deviation between the calibration platform and the reference surface by emitting a laser beam.

[0037] Data feedback and correction: The microprocessor 14 receives data transmitted from the laser sensor 11 and the laser interferometer, and combines it with data from the electronic inclinometer 15, the temperature sensor 16 and the air pressure sensor 17. If the levelness or angle deviates from the requirements, the microprocessor 14 controls the hydraulic module 2 again or prompts the operator to adjust the angle of the laser sensor 11.

[0038] Calibration verification: Monitor until the horizontal condition of the aircraft component to be calibrated meets the maintenance accuracy requirements, and complete the calibration operation.

[0039] VI. Completion of the assignment Equipment reset: Turn off the laser sensor 11, laser interferometer and other equipment, retract the hydraulic module 2 to the initial state, and restore the device to the initial placement state.

[0040] Power off: Disconnect the power supply to the device, clean and inspect the device to ensure that all components are undamaged, and prepare it for the next use.

[0041] The above detailed embodiments are a description of the present utility model. It should not be considered that the specific embodiments of the present utility model are limited to these descriptions. For those skilled in the art, several simple deductions and substitutions can be made without departing from the concept of the present utility model, and all of these should be considered to fall within the protection scope of the present utility model.

Claims

1. A horizontal alignment device for aircraft maintenance operations, characterized in that, It includes a base and a support assembly disposed at the lower end of the base, the support assembly being used for precise height adjustment; it also includes an angle adjustment assembly disposed on the base, the angle adjustment assembly being used for adjusting the angle of the device.

2. The apparatus of claim 1, wherein, The support assembly includes hydraulic modules. Several hydraulic modules are spaced apart at the bottom of the base along the central axis of the base. One end of each hydraulic module is connected to a hydraulic pump through a conduit. A solenoid valve is provided between the conduit and the hydraulic pump. The power end of the hydraulic module is fixedly connected to the bottom of the base.

3. The apparatus of claim 1, wherein, The angle adjustment assembly includes a support block, a ring shell, and a positioning block. The upper end of the base is provided with a sliding groove, the positioning block is fixed inside the sliding groove, the support block is set on the positioning block, the ring shell is connected to the side of the support block by a fixing bolt, the bottom end of the ring shell is provided with a thread, a conical wheel that meshes with the thread is inserted into one side of the base, and an adjustment rod is fixed to the other end of the conical wheel. The upper end of the support block is provided with a guard, and a laser sensor is installed inside the guard.

4. The apparatus as claimed in claim 1, characterized in that, The support block has a closed working chamber inside, and several openings are opened on the side of the working chamber. A microprocessor is installed in the working chamber, and an electronic inclinometer, a temperature sensor and a pressure sensor are respectively installed in the openings. The electronic inclinometer, the temperature sensor and the pressure sensor are electrically connected to the microprocessor through wires.

5. The apparatus as claimed in claim 1, characterized in that, The hydraulic pump is electrically connected to the microprocessor via wires, and the solenoid valve is electrically connected to the microprocessor via wires.

6. The apparatus of claim 1, wherein, The ring shell has an L-shaped cross-section. The upper part of the ring shell is fixedly connected to the side of the support block by a fixing bolt. The ring shell and the support block clamp the positioning block.

7. The apparatus of claim 1, wherein, The support block is made of quartz glass.

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