A scroll device suitable for airborne refueling tube carriage

Abstract

The utility model discloses a kind of worm disc devices suitable for aerial refueling pipe carrying, driving shaft is provided with the radial protruding limit ring, and the connecting end of driving shaft is provided with shaft sleeve, lead disc is tightly fitted on shaft sleeve, and the end surface of lead disc and the end surface of limit ring abut, shaft hole is opened on shaft sleeve, and the shaft hole of shaft sleeve is installed in by key in the one end of driven shaft, limit protruding ring is further provided on driving shaft, and the shaft rod between limit protruding ring and shaft sleeve forms range-increasing shaft, worm disc is installed with clearance fit on range-increasing shaft, variable-diameter spiral groove is opened on worm disc, and the small diameter end of spiral groove is close to lead disc, and lead hole is opened on lead disc.The utility model has the beneficial effects that: worm disc rotation drives the winding and unwinding of refueling hose, overcome inherent defects of traditional unmanned aerial vehicle in winding and unwinding hose efficiency and stability, and worm disc adopts openwork design, significantly enhance unmanned aerial vehicle in air encounter strong wind and other bad weather, so that unmanned aerial vehicle can maintain accurate flight attitude control in complex and changeable air environment.

Description

Technical Field

[0001] This utility model relates to aerial refueling of unmanned aerial vehicles (UAVs), and in particular to a spiral device suitable for carrying an aerial refueling probe. Background Technology

[0002] Aerial refueling is defined as the process by which a tanker aircraft transfers its excess fuel to the receiver aircraft's fuel tanks via pipelines during flight, thereby increasing the receiver aircraft's flight range. Aerial refueling technology can significantly increase an aircraft's flight time and range, effectively reduce its takeoff weight, and increase its payload. Currently, there are two main types of aerial refueling technology worldwide: hose-and-drogue refueling and boom refueling.

[0003] With the increasing demand for stability during aerial refueling of drones, higher requirements are being placed on drone design. Traditional aerial refueling devices with lateral constraint hoses suffer from instability and inconvenient hose retraction during aerial refueling due to limitations in their design principles, leading to unstable flight attitude and affecting the efficiency and practicality of aerial refueling. Meanwhile, traditional disc hinge connections have significant shortcomings in terms of efficiency and stability during aerial retraction. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a spiral device suitable for use with aerial refueling probes.

[0005] The objective of this utility model is achieved through the following technical solution: A worm gear device suitable for aerial refueling probes includes a drive shaft, a lead wire disc, a worm gear, and a driven shaft. The drive shaft is provided with a radially protruding limiting ring, and a bushing is provided at the connecting end of the drive shaft. The lead wire disc is tightly fitted onto the bushing, and one end face of the lead wire disc abuts against the end face of the limiting ring. A shaft hole is provided on the bushing. One end of the driven shaft is installed in the shaft hole of the bushing via a key. A limiting protrusion ring is also provided on the drive shaft. The shaft between the limiting protrusion ring and the bushing forms a range extender shaft. A worm gear is installed on the range extender shaft with clearance fit. A variable diameter spiral groove is provided on the worm gear, and the small diameter end of the spiral groove is close to the lead wire disc. A lead wire hole is provided on the lead wire disc.

[0006] Optionally, the pitch of the spiral groove can be matched to the diameter of the refueling hose.

[0007] Optionally, there may be multiple lead holes, which are evenly distributed on the same circumference.

[0008] Optional, five lead holes are available.

[0009] Optionally, the sidewalls of the spiral groove are provided with perforations.

[0010] This invention has the following advantages: The worm gear device of this invention, which is suitable for carrying aerial refueling hoses, has a rotating drive shaft that causes the worm gear to rotate and drive the refueling hose to extend and retract. This not only overcomes the inherent defects of traditional UAVs in terms of hose extension and retraction efficiency and stability, but also greatly expands its applicability in complex application scenarios. Moreover, the worm gear adopts a hollow design, which significantly enhances the UAV's ability to maintain precise flight attitude control in complex and ever-changing aerial environments when encountering strong winds and other severe weather conditions. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0012] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0013] Figure 3 for Figure 2 Schematic diagram of the cross section of AA;

[0014] In the figure, 1-drive shaft, 2-leader disk, 3-worm disk, 4-driven shaft, 5-abutment ring, 6-leader hole, 7-shaft sleeve, 8-spiral groove, 9-limiting convex ring, 10-range extender shaft. 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 with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figure 1As shown, a worm gear device suitable for aerial refueling probes includes a drive shaft, a lead wire disc, a worm gear, and a driven shaft. The drive shaft is connected to the power output end of a drive component. A radially protruding limiting ring is provided on the drive shaft, and a bushing is provided at the connecting end of the drive shaft. The lead wire disc is tightly fitted onto the bushing, and one end face of the lead wire disc abuts against the end face of the limiting ring. A shaft hole is provided on the bushing, and one end of the driven shaft is installed in the shaft hole of the bushing via a key. The driven shaft and the bushing are also tightly fitted. When the drive shaft rotates, it drives the driven shaft to rotate. Furthermore, the drive shaft is equipped with a limit ring. The shaft between the limit ring and the bushing forms a range extender shaft. A worm gear is fitted onto the range extender shaft with a clearance fit. The worm gear has a variable-diameter spiral groove, with the smaller diameter end of the spiral groove close to the lead wire disc. The lead wire disc has a lead wire hole. One end of the refueling hose is located on one side of the lead wire disc, while the other end passes through the lead wire hole and winds around the worm gear along the spiral groove. Finally... The refueling hose extends from the other end of the worm gear. During use, both ends of the refueling hose are connected to the pipeline, while the refueling hose wound within the spiral groove serves as the storage section. In use, the drive shaft rotates via a driving device. When the drive shaft rotates, the lead coil and driven shaft rotate, causing the refueling hose to rotate as well. During this rotation, the refueling hose applies torque to the worm gear, causing it to rotate circumferentially. Since the refueling hose is wound on the spiral groove, it also applies an axial force to the worm gear, allowing the worm gear to adaptively adjust its axial position during the refueling hose's deployment and retraction. In this embodiment, when the drive shaft rotates forward, the worm gear releases the refueling hose, allowing it to extend axially for easy aerial refueling. After refueling, the drive shaft rotates in the reverse direction, and the worm gear tightens the slack refueling hose for easy storage.

[0022] In this embodiment, the pitch of the spiral groove is matched with the diameter of the refueling hose, that is, the refueling hose is in contact with the groove wall of the spiral groove, thereby enabling the refueling hose to apply torque and axial force to the worm gear, and only one spiral groove can be wound in each turn of the spiral groove.

[0023] In this embodiment, there are multiple lead wire holes, which are evenly distributed on the same circumference. Preferably, there are five lead wire holes. The weight of the lead wire disk can be reduced by the lead wire holes. Furthermore, the spiral groove on the worm disk can also have several hollow holes (not shown in the figure) on the side wall of the spiral groove, thereby realizing the hollow design of the worm disk. Therefore, it significantly enhances the ability of the UAV to maintain precise flight attitude control in the face of strong winds and other severe weather conditions, enabling the UAV to maintain precise flight attitude control in complex and ever-changing aerial environments.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spiral device suitable for use with an aerial refueling probe, characterized in that: The device includes a drive shaft, a lead wire disk, a worm gear disk, and a driven shaft. The drive shaft has a radially protruding limiting ring, and a bushing is provided at the connecting end of the drive shaft. The lead wire disk is tightly fitted onto the bushing, and one end face of the lead wire disk abuts against the end face of the limiting ring. The bushing has a shaft hole, and one end of the driven shaft is installed in the shaft hole of the bushing via a key. The drive shaft also has a limiting protrusion ring. The shaft between the limiting protrusion ring and the bushing forms a range extender shaft. The worm gear disk is fitted onto the range extender shaft with a clearance fit. The worm gear disk has a variable diameter helical groove, and the small diameter end of the helical groove is close to the lead wire disk. The lead wire disk has a lead wire hole.

2. The spiral device for aerial refueling probes according to claim 1, characterized in that: The pitch of the spiral groove is matched with the diameter of the refueling hose.

3. A spiral device for aerial refueling probes according to claim 2, characterized in that: The lead hole is multiple and evenly distributed on the same circumference.

4. A spiral device for aerial refueling probes according to claim 3, characterized in that: There are five lead holes.

5. A spiral device for carrying an aerial refueling probe according to claim 4, characterized in that: The spiral groove has perforated holes on its sidewalls.

Images