Wheeled propeller and flying automobile

Abstract

A wheeled propeller and a flying automobile comprising the wheeled propeller. The wheeled propeller comprises a wheel (1), a ducted fan (2) and a drive motor (3); the wheel (1) comprises a hub (11) and a rim (13); the ducted fan (2) is arranged on the inner side of the rim (13) and is coaxial with the hub (11); the hub (11) serves as a duct body of the ducted fan (2); the rim (13) serves as a duct housing of the ducted fan (2); the drive motor (3) and the ducted fan (2) are respectively arranged on two sides of the hub (11); the drive motor (3) comprises an output main shaft (31) and an electronic clutch device; the output main shaft (31) passes through the hub (11) and is fixed to the axis of the ducted fan (2); an output shaft of the drive motor (3) is disengaged from or engaged with the hub (11) by means of the electronic clutch device. The wheeled propeller can be used for a flying automobile to both travel on land and fly in the air, thereby reducing the space and weight of the flying automobile. In addition, a clutch function of the hub of the wheel is realized by means of an actuation function of a solenoid valve built inside the drive motor, thereby allowing for independently driving the wheel and the ducted fan.

Description

A wheeled propeller and flying car Technical Field

[0001] This invention relates to the field of flying cars, specifically to a wheeled propeller and a flying car. Background Technology

[0002] Flying cars are an aerial transportation tool that modern aircraft researchers have been exploring. There are many technical solutions that modify the structure of car tires to make them serve as propellers for aircraft. However, most patents, such as the Chinese patent application No. 202311300521.4 entitled "A Leg-Propeller Integrated Land-Air Rapid Transformation Flying Car", use a first motor to drive the wheel hub and a second motor to drive the propeller blades. The second motor is located inside the wheel, which is a complex structure that needs to be optimized. Summary of the Invention

[0003] The purpose of this invention is to provide a wheeled propeller and a flying car to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a wheeled propeller, comprising a wheel, a ducted fan, and a drive motor, wherein the wheel comprises a hub and a rim, the ducted fan is disposed on the inner side of the rim and coaxial with the hub, the hub serves as the duct body of the ducted fan, and the rim serves as the duct housing of the ducted fan;

[0005] The drive motor and the ducted fan are respectively disposed on both sides of the hub. The drive motor includes an output main shaft and an electronic clutch device. The output main shaft passes through the hub and is fixed to the axis of the ducted fan. The output shaft of the drive motor is disconnected from or connected to the hub through the electronic clutch device.

[0006] Preferably, the electronic clutch device includes multiple sets of solenoid valves and limit valve cores. The solenoid valves are disposed on the output shaft of the drive motor. The solenoid valves have a first valve core cavity, and a spring is disposed in the first valve core cavity.

[0007] The hub is provided with a plurality of second valve core cavities on the side facing the drive motor, and the second valve core cavities correspond one-to-one with the first valve core cavities to form valve core cavities;

[0008] The limiting valve core is disposed in the valve core cavity and moves out of or into the second valve core cavity under the influence of the solenoid valve or the spring.

[0009] Preferably, there are five sets of solenoid valves and limit valve cores, which are evenly distributed around the output main shaft.

[0010] Preferably, the ducted fan includes six or eight blades.

[0011] Preferably, the wheel further includes an inflatable tire and spokes, the inflatable tire being disposed on the outer side of the rim, and the spokes connecting the rim and the hub.

[0012] The present invention also provides the following technical solution: a flying car, including a vehicle body and a wheeled propeller, wherein the wheeled propeller is connected to the vehicle body via an axle, and the axle is rotatable around its axis, and the wheeled propeller is connected to the axle via a steering mechanism.

[0013] Preferably, the steering mechanism includes a steering shaft and a steering drive motor. The steering shaft is fixed to the back side of the drive motor, and the steering drive motor is provided at the end of the axle to drive the wheel propeller to rotate around the steering shaft.

[0014] Preferably, the output end of the steering drive motor is coaxially connected to a first gear, and a second gear is coaxially fixed to the outer side of the steering shaft, with the first gear and the second gear meshing.

[0015] Preferably, an angle sensor is provided on the outside of the steering drive motor, and the angle sensor is located at the rear end of the steering drive motor.

[0016] Preferably, the axle includes an inner axle, an outer axle, and a telescopic electric cylinder. The inner axle and the outer axle form a nested telescopic structure through the telescopic electric cylinder, and the inner axle performs telescopic reciprocating motion relative to the outer axle.

[0017] Compared with the prior art, the beneficial effects of this invention are as follows: This invention provides a wheel propeller that can be used for both the flying car on land and the flying car in the air, reducing the space and weight of setting four wheels separately in the flying car; at the same time, this invention relies on the engagement function of the solenoid valve built into the drive motor to realize the clutch function of the wheel hub, thereby enabling independent drive of the wheels and ducted fan. Attached Figure Description

[0018] Figure 1 is a structural schematic diagram of an embodiment of the wheeled propeller and axle of the present invention;

[0019] Figure 2 is a schematic diagram of the structure of Figure 1 from another perspective;

[0020] Figure 3 is a schematic diagram of the structure in Figure 2 with the wheels and duct fan removed;

[0021] Figure 4 is a structural schematic diagram of Figure 3 after the inner and outer axles are hidden;

[0022] Figure 5 is a schematic diagram of one side of the wheeled propeller and axle of the present invention along the steering axis;

[0023] Figure 6 is a cross-sectional schematic diagram of AA in Figure 5 (the internal structure of the axle is hidden).

[0024] Figure 7 is a schematic diagram of the wheeled propeller and axle of the present invention along the other side of the steering axis;

[0025] Figure 8 is a schematic diagram of the structure of the wheel propeller rotating around the steering axis in Figure 7. Detailed Implementation

[0026] This invention discloses a wheeled propeller and a flying car. The flying car includes a vehicle body and four wheeled propellers, each located at one of the four wheels of the vehicle body. This invention does not focus on improving the vehicle body; therefore, the accompanying drawings describing the vehicle body are omitted.

[0027] The wheel propeller is connected to the vehicle body via the axle 4. Please refer to Figures 1 and 2. The wheel propeller includes a wheel 1, a ducted fan 2, and a drive motor 3. Among the lift fans of the aircraft, the ducted fan 2 has the significant advantages of low noise and high thrust.

[0028] Wheel 1 includes a hub 11, spokes 12, a rim 13, and an inflatable tire 14. The inflatable tire 14 is wrapped around the outside of the rim 13, and the spokes 12 connect the rim 13 and the hub 11. The ducted fan 2 may include six or eight blades, which are integrally disposed inside the rim 13 and coaxial with the hub 11. With this structure, the hub 11 serves as the duct body of the ducted fan 2, and the rim 13 serves as the duct housing of the ducted fan 2, thereby reducing the space and weight required to separately install four running wheels on the flying car.

[0029] Referring to Figures 3 to 6, the drive motor 3 and the ducted fan 2 are respectively disposed on both sides of the hub 11. The drive motor 3 is fixed relative to the hub 11, and the connection between the drive motor 3 and the hub 11 is achieved through an electronic clutch device. An output main shaft 31 is fixed at the axis of the output shaft of the drive motor 3, and the output main shaft 31 passes through the hub 11 and is fixed to the axis of the ducted fan 2. The electronic clutch device includes five sets of solenoid valves 32 and limit valve cores 33. The solenoid valves 32 are fixed to the output shaft of the drive motor 3 and are evenly distributed around the output main shaft 31, as shown in Figure 4.

[0030] Referring to Figure 6, the solenoid valve 32 contains a first valve core cavity 34 and a spring, with the spring positioned within the first valve core cavity 34. The hub 11, facing the drive motor 3, has multiple second valve core cavities 15, each corresponding to a first valve core cavity 34 to form a complete valve core cavity. A limit valve core 33 is located within the valve core cavity and, under the influence of the solenoid valve 32 or the spring, either moves out of or into the second valve core cavity 15.

[0031] When the solenoid valve 32 is energized, the limit valve core 33 is attracted into the first valve core cavity 34, disconnecting the output shaft of the drive motor 3 from the hub 11. When the solenoid valve 32 is de-energized, under the pressure of the spring, the limit valve core 33 is partially pushed into the second valve core cavity 15, establishing the connection between the output shaft of the drive motor 3 and the hub 11. Based on the above structure, the output shaft of the drive motor 3 can be disconnected from or connected to the hub 11 via an electronic clutch device, realizing the function of independently driving the ducted fan 2 and the wheel 1.

[0032] Referring to Figures 1 to 4, the axle 4 includes an inner axle 41, an outer axle 42, and a telescopic electric cylinder 43. The inner axle 41 and the outer axle 42 form a nested telescopic structure through the telescopic electric cylinder 43. The outer axle 42 is entirely located inside the vehicle body, and the inner axle 41 reciprocates by extending and retracting from one end of the outer axle 42 near the outer side.

[0033] Of the two ends of the inner axle 41, the outer end is connected to the wheel propeller via the steering mechanism 5. Due to the telescoping nature of the axle 4, the wheel propeller can also reciprocate relative to the vehicle body along the width of the vehicle body to achieve various positions required by the wheel propeller.

[0034] Referring to Figures 3 and 4, the steering mechanism 5 includes a steering drive motor 51 and a steering shaft 52. The steering drive motor 51 is fixed inside the inner axle 41 at this end. The output end of the steering drive motor 51 is connected to a first gear 53, which is coaxial with the output shaft. The steering shaft 52 is fixed to the back side of the drive motor 3 and rotatably engages with this end of the inner axle 41. A second gear 54 is fixed to the outside of the steering shaft 52, which is coaxial with the steering shaft 52. The first gear 53 and the second gear 54 mesh to enable the steering drive motor 51 to drive the wheel propeller to rotate around the steering shaft 52. The second gear 54 only needs to have a portion of its teeth so that when it engages with the first gear 53, the steering shaft 52 can rotate 90° around its own axis. Compared to commonly used steering mechanisms 5, this gear-driven steering mechanism 5 is compact, occupies little space, and has a large output torque.

[0035] Figures 7 and 8 illustrate two positions of the wheel propeller, showing that after the steering drive motor 51 is started, the wheel propeller simultaneously rotates within a spatial range following the steering shaft 52, achieving a 90° rotation of the entire wheel propeller around the steering shaft 52, thus enabling the wheel propeller to switch between a traveling wheel and a flight propeller. Simultaneously, an angle sensor can be fixed to the rear end of the steering drive motor 51, and the gear transmission mechanism, in conjunction with the angle sensor, can precisely achieve the steering angle of the wheel propeller.

[0036] The outer axle 42 is rotatably connected to the vehicle body, and its axis is horizontal and parallel to the width direction of the flying car. The outer axle 42 and the axle 4 achieve rotation around their own axis through a conventional rotating connection structure, thereby changing the position of the steering shaft 52, so that the steering shaft 52 can rotate between the horizontal axis and the vertical axis.

[0037] The aforementioned mechanical structure incorporates program modes, including driving mode, vehicle movement mode, take-off and landing mode, and flight mode. Furthermore, the chassis of the vehicle body is equipped with an electric support cylinder to assist the flying car in supporting the vehicle body when changing modes.

[0038] The positional states of the solenoid valve 32, steering shaft 52, and wheel propeller corresponding to the four modes are as follows:

[0039] In driving mode, solenoid valve 32 is de-energized, the wheel propeller acts as the driving wheel, and the whole vehicle is driven by drive motor 3, allowing the flying car to travel on land.

[0040] In vehicle movement mode, solenoid valve 32 remains de-energized, the wheel propeller still serves as the driving wheel, the steering shaft 52 is in a vertical position and the wheel propeller is parallel to the width direction of the vehicle body, thus enabling the flying car to move laterally at low speed.

[0041] In takeoff and landing mode, solenoid valve 32 is energized, and the wheel propeller acts as the flight propeller; the electric support cylinder works, and at the same time, the steering shaft 52 and the wheel propeller are both in a horizontal state.

[0042] In flight mode, the solenoid valve 32 is energized, the wheel propeller acts as the flight propeller, the steering shaft 52 is in a vertical state and the wheel propeller is parallel to the width direction of the vehicle body, at this time the drive motor 3 can only drive the ducted fan 2 by relying on the output main shaft 31.

[0043] In summary, the present invention provides a wheel propeller that can be used for both the driving of flying cars on land and the flying of flying cars in the air; at the same time, the present invention relies on the engagement function of the solenoid valve 32 built into the drive motor 3 to realize the engagement and disengagement function of the wheel hub 11, thereby enabling the independent drive of the wheel 1 and the ducted fan 2.

[0044] Finally, it should be noted that the above description is only 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 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 wheel-type propeller, comprising a wheel (1), a ducted fan (2), and a drive motor (3), characterized in that: The wheel (1) includes a hub (11) and a rim (13). The ducted fan (2) is disposed on the inner side of the rim (13) and is coaxial with the hub (11). The hub (11) serves as the duct body of the ducted fan (2), and the rim (13) serves as the duct housing of the ducted fan (2). The drive motor (3) and the ducted fan (2) are respectively disposed on both sides of the hub (11). The drive motor (3) includes an output main shaft (31) and an electronic clutch device. The output main shaft (31) passes through the hub (11) and is fixed to the axis of the ducted fan (2). The output shaft of the drive motor (3) is disconnected from or connected to the hub (11) through the electronic clutch device.

2. The wheeled propeller according to claim 1, characterized in that: The electronic clutch device includes multiple sets of solenoid valves (32) and limit valve cores (33). The solenoid valves (32) are located on the output shaft of the drive motor (3). The solenoid valves (32) have a first valve core cavity (34) inside, and a spring is provided inside the first valve core cavity (34). The hub (11) is provided with a plurality of second valve core chambers (15) on the side facing the drive motor (3). The second valve core chambers (15) correspond one-to-one with the first valve core chambers (34) and form valve core chambers. The limiting valve core (33) is disposed in the valve core cavity and moves away from or into the second valve core cavity (15) under the influence of the solenoid valve (32) or the spring.

3. The wheeled propeller according to claim 2, characterized in that: The solenoid valve (32) and the limit valve core (33) are provided in five groups and are evenly distributed around the output main shaft (31).

4. The wheeled propeller according to claim 1, characterized in that: The ducted fan (2) includes six or eight blades.

5. The wheeled propeller according to claim 1, characterized in that: The wheel (1) also includes an inflatable tire (14) and spokes (12), the inflatable tire (14) being disposed on the outside of the rim (13), and the spokes (12) connecting the rim (13) and the hub (11).

6. A flying car, characterized in that: The vehicle includes a vehicle body and a wheeled propeller as described in any one of claims 1-5, wherein the wheeled propeller is connected to the vehicle body via an axle (4) and the axle (4) is rotatable about its axis, and the wheeled propeller is connected to the axle (4) via a steering mechanism (5).

7. The flying car according to claim 6, characterized in that: The steering mechanism (5) includes a steering shaft (52) and a steering drive motor (51). The steering shaft (52) is fixed to the back side of the drive motor (3). The end of the axle (4) is provided with a steering drive motor (51) to drive the wheel propeller to rotate around the steering shaft (52).

8. The flying car according to claim 7, characterized in that: The output end of the steering drive motor (51) is coaxially connected to a first gear (53), and a second gear (54) is coaxially fixed to the outside of the steering shaft (52). The first gear (53) and the second gear (54) mesh.

9. The flying car according to claim 8, characterized in that: An angle sensor is provided on the outside of the steering drive motor (51), and the angle sensor is located at the rear end of the steering drive motor (51).

10. The flying car according to any one of claims 6-9, characterized in that: The axle (4) includes an inner axle (41), an outer axle (42) and a telescopic electric cylinder (43). The inner axle (41) and the outer axle (42) form a nested telescopic structure through the telescopic electric cylinder (43). The inner axle (41) performs telescopic reciprocating motion relative to the outer axle (42).

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