Modularized lightweight unmanned aerial vehicle centering mechanism

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, and discloses a modular lightweight unmanned aerial vehicle centering mechanism. Comprising a bottom plate, a driving motor, a transmission lead screw, a centering long plate and a sliding rail; the driving motor is installed on the bottom plate, and the power output end of the driving motor is connected with the transmission lead screw through a gear. The long centering plate and the sliding rail are installed on the top of the bottom plate, the sliding rail is located under the transmission lead screw, and the long centering plate is installed on the transmission lead screw and the sliding rail in a sliding mode. The driving motor drives the centering long plate to move on the sliding rail, so that the unmanned aerial vehicle on the bottom plate is moved to the middle position of the bottom plate, the landing point position of the unmanned aerial vehicle is rapidly calibrated, and the unmanned aerial vehicle can be gathered to the middle position of the bottom plate at high precision when landing at different positions of the bottom plate; the moving range of the centering long plate is freely adjusted according to the size of the unmanned aerial vehicle, and the application range of the unmanned aerial vehicle centering mechanism is widened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to unmanned plane technical field, concretely relates to a modularization light weight unmanned plane centering mechanism. BACKGROUND

[0002] In the field of unmanned aerial vehicle autonomous centering technology, the existing centering mechanism generally has problems such as heavy structure, insufficient adjustment accuracy and poor adaptability. The traditional scheme mostly adopts single push rod mechanical limiting structure, the fixed baffle of which cannot adapt to unmanned aerial vehicles of different sizes, resulting in limited centering range; the single motor driving structure is difficult to realize multi-directional synchronous adjustment, and is prone to positioning deviation caused by motion asynchronization; although the overall structure made of steel has high strength, it seriously restricts the lightweight demand of the hangar, and lacks modular expansion capability. Although part of the improved scheme attempts to improve the moving accuracy by adding guide rails, the motion jamming problem caused by the assembly error of the lead screw and the guide rail still exists, affecting the reliability of the mechanism.

[0003] Chinese patent application CN202222919289.X discloses a light weight unmanned aerial vehicle automatic centering device, comprising: a landing platform for parking unmanned aerial vehicles, two first centering rods symmetrically arranged on the top of the landing platform along the X-axis, two second centering rods symmetrically arranged on the top of the landing platform along the Y-axis, and four centering driving devices installed on the bottom of the landing platform, each of the four centering driving devices comprising a motor and a lead screw module connected with the motor; wherein two lead screw modules are arranged along the Y-axis, and two ends of each of the two first centering rods are connected to the two lead screw modules respectively; the remaining two lead screw modules are arranged along the X-axis, and two ends of each of the two second centering rods are connected to the two lead screw modules respectively. The effective stroke of the above-mentioned device lead screw is usually determined by its length, the two ends of the centering rod are directly connected to the lead screw module, and each centering rod has a driving mechanism at both ends, resulting in a complex structure, which cannot adjust the spacing, and resulting in a small range of application of the device. Therefore, it is urgent for those skilled in the art to solve the above technical problems. SUMMARY

[0004] The technical problem to be solved by the present application is that in the above-mentioned prior art, the effective stroke of the lead screw is usually determined by its length, the two ends of the centering rod are directly connected to the lead screw module, and each centering rod has a driving mechanism at both ends, resulting in a complex structure, which cannot adjust the spacing, and resulting in a small range of application of the device.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model has:

[0006] A modularization light weight unmanned plane centering mechanism is installed in an unmanned aerial vehicle hangar, used for adjusting the unmanned aerial vehicle after landing to the middle position of the hangar, comprising a bottom plate, a driving motor, a transmission lead screw, a centering long plate and a sliding rail.

[0007] At least two driving motors are installed on the adjacent edges of the bottom plate, and the power output ends of the driving motors are connected to the transmission screw rods through gears;

[0008] The centering long plate and the slide rail are installed on the top of the bottom plate, the slide rail is arranged on the bottom plate in parallel with the transmission screw rod, and the centering long plate is slidably installed on the transmission screw rod and the slide rail.

[0009] By adopting the above technical scheme, the transmission screw rod is driven by the driving motor, so that the centering long plate can be accurately moved along the slide rail, thereby realizing accurate adjustment of the landed unmanned aerial vehicle to the middle position of the hangar. This greatly improves the accuracy and efficiency of the landing of the unmanned aerial vehicle, and the centering long plate can be randomly adjusted in the moving range according to unmanned aerial vehicles of different sizes, overcoming the problem that the fixed baffle in the traditional design cannot adapt to multiple unmanned aerial vehicle sizes. Compared with the design in the prior art that each centering rod has an independent driving mechanism at both ends, the utility model only needs to install at least two driving motors on the adjacent edges of the bottom plate, reduces unnecessary complexity, reduces maintenance cost, and lightens the overall weight while ensuring sufficient structural strength and stability. The system adopts a modular design idea, which is convenient for component replacement, upgrading and maintenance work. Such a design not only facilitates daily maintenance, but also reduces the overall cost of the system.

[0010] Further, the centering long plate is connected to the transmission screw rod and the slide rail through a sliding block;

[0011] The sliding block is connected to the centering long plate through a fixed plate, and the fixed plate is installed on the centering long plate and the sliding block through bolts.

[0012] By adopting the above technical scheme, the sliding block can ensure smooth movement of the centering long plate along the predetermined path (i.e. the slide rail) while ensuring that it will not deviate or shake unnecessarily during the adjustment of the position of the unmanned aerial vehicle. This greatly improves the stability and accuracy of the operation of the entire system. The use of the fixed plate and the bolts to assemble the components together makes the assembly and disassembly of the entire device more simple and fast. This design not only facilitates daily maintenance and component replacement, but also reduces the risk of problems caused by improper assembly. The use of the fixed plate and the bolts enhances the overall firmness of the structure, reducing the possibility of loosening over time. In addition, this strong connection method can withstand a large force, which helps to prolong the service life of the equipment. Since the sliding block, fixed plate and other components can be adjusted or replaced as needed, this design has high flexibility and can quickly adapt to the centering needs of unmanned aerial vehicles of different specifications or types.

[0013] Further, the centering long plate comprises a centering section, a transition section and a connecting section, the centering section is parallel to the side edge of the bottom plate, the two ends of the centering section extend upward along the vertical direction to form the transition section, the transition section extends along the horizontal direction and is connected with the slider;

[0014] The transition section and the connecting section form an avoiding opening, the size of the avoiding opening is matched with the driving motor.

[0015] By adopting the above technical scheme, the transition section extends along the horizontal direction and is connected with the slider, this design enables the centering long plate to move horizontally accurately while maintaining stability, the avoiding opening formed by the transition section and the connecting section is matched with the driving motor in size, which not only ensures the smooth installation of the driving motor, but also provides convenience for subsequent maintenance or replacement. In addition, reasonable avoiding design can also avoid unnecessary interference with other components, improve the integration and coordination of the whole system, and through careful design of the centering section, the transition section and the connecting section and their mutual cooperation, the risk of mechanical failure that may occur during operation can be effectively reduced.

[0016] Further, the driving motor is installed on the bottom plate through a fixing block, and the fixing block is fixed on the transmission screw rod and the slide rail.

[0017] By adopting the above technical scheme, since the fixing block is connected to the bottom plate, the transmission screw rod and the slide rail at the same time, it can effectively reduce the vibration generated during the operation of the motor, ensuring the stability of the whole system. This is particularly important for applications that require high-precision positioning, by installing the fixing block on the transmission screw rod and the slide rail, the output of the driving motor can be accurately converted into the linear displacement of the slider or other moving parts. This helps to improve the positioning accuracy of the whole system, especially in precision machinery and automation equipment. By adopting this integrated design, the additional space required for separately installing the driving motor is reduced, making the overall structure more compact. Since the fixing block undertakes the installation task of the driving motor and is directly fixed to the key components of the transmission system, such design simplifies the assembly process and improves the installation efficiency.

[0018] Further, a connecting plate is arranged at the corner of the centering section, the transition section and the connecting section, the connecting plate is L-shaped, and the connecting plate is installed on the centering long plate through screws;

[0019] The side of the bottom plate where the driving motor is not installed is provided with a synchronous rod, and the synchronous rod on each side is divided into two sections, and each section of the synchronous rod is installed on the top of the bottom plate through a support frame.

[0020] By adopting the above technical scheme, the L-shaped connecting plate can provide additional support and reinforcement at the corner, making the connection between different sections more secure. This helps to improve the rigidity and stability of the entire device, reducing vibration and displacement during operation. Using standardized L-shaped connecting plates can simplify the assembly process, as they are usually pre-manufactured components that only need to be secured with screws. This not only saves time but also reduces the risk of assembly errors.

[0021] Further, the four centering long plates are made of aluminum alloy.

[0022] By adopting the above technical scheme, aluminum alloy is an ideal choice for lightweighting due to its low density. Compared to traditional metal materials such as steel, using aluminum alloy can significantly reduce the overall weight of the structure while ensuring sufficient strength. For equipment involving moving parts or requiring manual handling, reducing weight can directly improve operational convenience and mobility efficiency, reducing energy consumption. Lightweighting helps to improve the handling performance of the equipment.

[0023] The utility model has the advantages that:

[0024] 1. The utility model discloses a design that drives the transmission screw rod with a drive motor, which allows the centering long plate to move accurately along the slide rail, thereby precisely adjusting the landed unmanned aerial vehicle to the middle position of the hangar, improving the accuracy and efficiency of the unmanned aerial vehicle landing, and overcoming the problem of the fixed baffle in traditional design that cannot adapt to various unmanned aerial vehicle sizes, making the device have a wider application range.

[0025] 2. The utility model discloses two drive motors installed on adjacent edges of the bottom plate, which greatly reduces unnecessary complexity and the number of components, reduces the failure rate and maintenance cost of the overall system, and makes the replacement, upgrade, and maintenance of components more convenient through modular design, further reducing the long-term operation cost.

[0026] 3. The utility model discloses that the centering long plate and the bottom plate are made of aluminum alloy material, which significantly reduces the overall weight of the structure while ensuring sufficient strength, improves the operational convenience and mobility efficiency, and enhances the rigidity and stability of the entire device through reasonable design (such as L-shaped connecting plate reinforcement at the corner, and the slider and the fixed plate ensure stable movement), reduces vibration and displacement during operation, prolongs the service life of the equipment, and facilitates daily maintenance and component replacement. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 It is a schematic diagram of the structure of the unmanned aerial vehicle after being centered by the utility model.

[0029] Figure 3 It is the structure schematic view of the long plate of the utility model;

[0030] Figure 4 It is the structure schematic view of the utility model Figure 1 It is the enlarged schematic view of A part.

[0031] Wherein: 1 - bottom plate; 11 - fixed block; 12 - synchronous rod; 2 - drive motor; 3 - transmission screw; 4 - long plate of centering; 41 - centering section; 42 - transition section; 43 - connecting section; 44 - connecting plate; 5 - slide rail; 6 - sliding block; 61 - fixed plate. Specific implementation

[0032] The utility model will be further explained in detail in combination with the drawings and specific preferred embodiment.

[0033] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "left side", "right side", "upper part", "lower part" etc. 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 does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and "first", "second" etc. do not represent the importance of the parts, so it cannot be understood as the limitation of the utility model. The specific size adopted in the embodiment is only for the purpose of illustrating the technical scheme, and does not limit the protection scope of the utility model.

[0034] Refer to Figure 1 , Figure 2 , Figure 3 And Figure 4The utility model discloses a modularization lightweight unmanned plane centering mechanism, including bottom plate 1, drive motor 2, transmission screw rod 3, centering long plate 4, slide rail 5, sliding block 6 and synchronous pole 12, bottom plate 1 adopts aluminium alloy material, present rectangular frame structure, four edges reserve mounting hole position, be used for modularization assembly. Drive motor 2 is two stepper motors symmetrically installed in the two adjacent sides such as left side and front side of bottom plate 1, is fixed with transmission screw rod 3 and slide rail 5 through fixed block 11. Fixed block 11 is locked on bottom plate 1 vertically through bolt, its top is equipped with bearing seat, is used for supporting the end of transmission screw rod 3, transmission screw rod 3 is parallel to the mounting edge of bottom plate 1, is connected with the output shaft of drive motor 2 through gear set, slide rail 5 is fixed on the top of bottom plate 1 with transmission screw rod 3 parallel, ensure the sliding stability of sliding block 6, centering long plate 4 sets four groups, and each group is by centering section 41, transition section 42 and connecting section 43 constitutes, centering section 41 is parallel with the side edge of bottom plate 1, and the length is matched with the side length of bottom plate 1, and the surface is equipped with antiskid rubber pad, after transition section 42 extends vertically upwards from the both ends of centering section 41, forms connecting section 43 horizontally, the bending portion is reinforced through L type connecting plate 44, connecting plate 44 is fixed in the corner of centering long plate 4 through screw, and the width of avoiding mouth is surrounded by transition section 42 and connecting section 43, is greater than the external contour of drive motor 2, avoids the interference of centering long plate 4 when moving with motor. Sliding block 6 is linear bearing assembly, and the inside is embedded with ball, and is matched with the thread of transmission screw rod 3, can slide bidirectionally along transmission screw rod 3 and slide rail 5, and the top of sliding block 6 is fixed with the connecting section 43 of centering long plate 4 through the bolt of fixed plate 61, on the two sides such as right side and rear side of bottom plate 1 not installing drive motor 2, installs two synchronous poles 12 on each side, and sectional design is convenient for transportation and assembly. Synchronous pole 12 is fixed on the top of bottom plate 1 through support frame 13 vertically, and support frame 13 is connected with bottom plate 1 through bolt on the bottom, and is equipped with the slot fixed synchronous pole 12 on the top,

[0035] Modularization assembly flow:

[0036] 1. Bottom plate 1 preloading: four aluminum alloy bottom plates 1 are spliced into a rectangular frame through corner code and bolt, and mounting holes for drive motor 2 and synchronous pole 12 are reserved;

[0037] 2. Drive assembly installation: drive motor 2 is installed on the adjacent two sides of bottom plate 1 through fixed block 11, to ensure that transmission screw rod 3 and slide rail 5 are parallel, the both ends of transmission screw rod 3 are inserted into the bearing seat of fixed block 11, and are engaged with the output shaft of drive motor 2 through a gear set;

[0038] 3. Centering long plate 4 assembly: centering section 41, transition section 42 and connecting section 43 are welded into a U-shaped structure, the corner is reinforced through L-shaped connecting plate 44, sliding block 6 is sleeved on transmission screw rod 3 and slide rail 5, and connecting section 43 of centering long plate 4 is locked with sliding block 6 through fixed plate 61;

[0039] 4. Synchronization rod 12 is fixed: the segmented synchronization rod 12 is inserted into the clamping groove of the support frame 13, locked by bolts, and the synchronous movement of the two sides of the transmission screw rod 3 is ensured.

[0040] Working principle: after the UAV lands in the hangar, the control system triggers the synchronous start of the two drive motors 2, drives the transmission screw rod 3 to rotate through the gear set, and converts the rotary motion into linear motion through the internal ball bearing of the sliding block 6, drives the four sets of centering long plates 4 made of aluminum alloy to gather to the center along the slide rail 5; the antiskid rubber pad on each centering long plate 4 ensures the stability during clamping, accurately pushes and squeezes the UAV to the center of the hangar, and the avoidance design effectively avoids the space conflict with the drive motor 2; the synchronization rod 12 ensures the synchronous movement of the multiple centering long plates 4, and when the UAV reaches the center position, the sensor triggers the stop command to lock the position, completing the centering operation; after the UAV takes off, the drive motor 2 reverses to make the centering long plate retreat to the initial position, preparing for the next operation. The efficient UAV centering is realized, and the modularity and light weight design improve the reliability and adaptability of the system, greatly improving the operation efficiency and service quality.

[0041] The preferred embodiments of the utility model are described in detail above, but the utility model is not limited to the specific details in the above embodiments, and various equivalent transformations of the technical solutions of the utility model can be made within the technical concept of the utility model, and these equivalent transformations all belong to the protection scope of the utility model.

Claims

1. A modular lightweight UAV centering mechanism, installed in a UAV hangar, for adjusting a UAV after landing to a central position in the hangar, characterized in that: It comprises a bottom plate (1), a driving motor (2), a transmission screw rod (3), a centering long plate (4) and a slide rail (5); At least two driving motors (2) are installed on the adjacent side of the bottom plate (1), and the power output end of the driving motor (2) is connected with the transmission screw rod (3) through a gear; The centering long plate (4) and the slide rail (5) are installed on the top of the bottom plate (1), the slide rail (5) is arranged on the bottom plate (1) in parallel with the transmission screw rod (3), and the centering long plate (4) is slidably installed on the transmission screw rod (3) and the slide rail (5).

2. The modular light-weight unmanned aerial vehicle homing mechanism of claim 1, wherein: The centering long plate (4) is connected with the transmission screw rod (3) and the slide rail (5) through a sliding block (6); The sliding block (6) is connected with the centering long plate (4) through a fixing plate (61), and the fixing plate (61) is installed on the centering long plate (4) and the sliding block (6) through bolts.

3. The centering mechanism of the modularized light unmanned aerial vehicle according to claim 2, characterized in that: The centering long plate (4) comprises a centering section (41), a transition section (42) and a connecting section (43), the centering section (41) is parallel to the side edge of the bottom plate (1), both ends of the centering section (41) extend upward along the vertical direction to form the transition section (42), and the transition section (42) extends along the horizontal direction and is connected with the sliding block (6); The transition section (42) and the connecting section (43) form an avoiding opening, and the size of the avoiding opening is matched with the driving motor (2).

4. The modular light-weight unmanned aerial vehicle homing mechanism of claim 3, wherein: The driving motor (2) is installed on the bottom plate (1) through a fixing block (11), and the fixing block (11) is fixed on the transmission screw rod (3) and the slide rail (5).

5. The modular light-weight unmanned aerial vehicle homing mechanism of claim 3, wherein: A connecting plate (44) is arranged at the corner of the centering section (41), the transition section (42) and the connecting section (43), the connecting plate (44) is L-shaped, and the connecting plate (44) is installed on the centering long plate (4) through screws; A synchronization rod (12) is installed on the side of the bottom plate (1) where the driving motor (2) is not installed, and the synchronization rod (12) on each side is divided into two sections, and each section of the synchronization rod (12) is installed on the top of the bottom plate (1) through a support frame.

6. The modular light-weight unmanned aerial vehicle homing mechanism of claim 1, wherein: Four centering long plates (4) are arranged, and the centering long plate (4) and the bottom plate (1) are made of aluminum alloy.

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