Variable-pitch shaftless double-rotor duct device

Abstract

The utility model relates to the technical field of duct devices, and discloses a variable-pitch shaftless double-rotor duct device which comprises a duct device body, the top end of the duct device body is fixedly connected with a supporting frame, the top end of the supporting frame is fixedly connected with a protection bin, an inner cavity of the protection bin is fixedly connected with a driving motor, and the driving motor is fixedly connected with a motor shaft. An output shaft of the driving motor is fixedly sleeved with an adjusting blocking rod, the top end of the duct device is fixedly connected with a fixed blocking rod, and the bottom end of the duct device is fixedly connected with a bottom protection rod. Further, the upper part of the duct device is adjusted by adjusting the gap between the stop rod and the fixed stop rod, so that the gap can be adjusted according to a flight environment or a parking environment, and the bottom of the duct device is protected through the bottom protection rod; the situation that foreign matter enters the inner cavity of the duct device from the bottom of the duct device to damage parts in the inner cavity of the duct device during maintenance and other operations is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of ducted devices, and more specifically, the utility model relates to a variable-pitch shaftless dual-rotor ducted device. Background Art

[0002] For a shaftless dual-rotor ducted device, the motor stator is fixed inside the duct, then the rotor and the rotor blades are combined at the blade tips, and the electromagnetic action of the motor causes the rotor and the rotor blades to rotate. Since there is no design of a central structure for this kind of ducted device, the overall aerodynamic performance can be greatly improved. And through a variable-pitch structure, the blades can be adjusted, so that the blades can maintain the best working state and further improve the aerodynamic performance. However, when the aircraft is parked outdoors and during flight, external debris may enter the interior of the ducted device, resulting in damage to the blades by foreign objects. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a variable-pitch shaftless dual-rotor ducted device, which has the advantage of preventing foreign objects from entering.

[0004] To achieve the above object, the utility model provides the following technical solution: A variable-pitch shaftless dual-rotor ducted device, including a ducted device, the top of the ducted device is fixedly connected with a support frame, the top of the support frame is fixedly connected with a protection chamber, a driving motor is fixedly connected to the inner cavity of the protection chamber, an adjusting blocking rod is fixedly sleeved on the output shaft of the driving motor, a fixed blocking rod is fixedly connected to the top of the ducted device, and a bottom protection rod is fixedly connected to the bottom of the ducted device.

[0005] As a preferred technical solution of the utility model, a cooling ring is fixedly connected to the outside of the ducted device, heat dissipation fins are fixedly connected to the outside of the cooling ring, and a sound insulation protection sleeve is fixedly sleeved on the outer surface of the cooling ring.

[0006] As a preferred technical solution of the utility model, a mounting bracket is fixedly connected to the left side of the ducted device, an electric telescopic rod is fixedly connected to the left side of the mounting bracket, and a mounting plate is fixedly connected to the left side of the electric telescopic rod.

[0007] As a preferred technical solution of the utility model, the adjusting blocking rod is movably connected above the fixed blocking rod, and the adjusting blocking rod can rotate around the center of the ducted device.

[0008] As a preferred technical solution of the utility model, the sound insulation protection sleeve is a cavity body, cooling water is filled in the inner cavity of the sound insulation protection sleeve, and the side of the heat dissipation fin close to the cooling ring is located in the inner cavity of the cooling ring.

[0009] As a preferred technical solution of the present utility model, a driving device is arranged in the inner cavity of the duct device, and a propeller is arranged in the inner cavity of the driving device.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. By starting the driving motor in the inner cavity of the protective bin to drive the adjusting blocking rod to rotate, the adjusting blocking rod is driven to rotate, and then the distance between the adjusting blocking rod and the fixed blocking rod is adjusted. Then, the bottom of the duct device is protected by the bottom protective rod. Thus, it realizes adjusting the upper part of the duct device by adjusting the gap between the adjusting blocking rod and the fixed blocking rod, so that the gap can be adjusted according to the flight environment or the parking environment. And the bottom of the duct device is protected by the bottom protective rod, preventing foreign objects from entering the inner cavity of the duct device from the bottom during maintenance and other operations, which may cause damage to the internal components of the duct device.

[0012] 2. Through the cooling ring on the outside of the duct device, the heat generated by the internal components of the duct device during operation can be absorbed by the cooling ring, and the heat is transferred to the air through the heat sink. Thus, it contacts with the cold air at high altitude outside to cool the coolant in the inner cavity of the cooling ring. And the cooling ring is protected by the sound insulation protective sleeve. Therefore, it realizes efficient cooling and heat dissipation of the duct device through the cooling ring, and also avoids the situation that the duct device is damaged by external impact during flight. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the present utility model;

[0014] Figure 2 It is a schematic connection diagram of the sound insulation protective sleeve of the structure of the present utility model;

[0015] Figure 3 It is a schematic connection diagram of the heat sink of the structure of the present utility model;

[0016] Figure 4 It is a schematic connection diagram of the bottom protective rod of the structure of the present utility model;

[0017] Figure 5 It is a schematic connection diagram of the cooling ring of the structure of the present utility model.

[0018] In the figure: 1. Duct device; 2. Support frame; 3. Protective bin; 4. Driving motor; 5. Adjusting blocking rod; 6. Fixed blocking rod; 7. Bottom protective rod; 8. Driving device; 9. Propeller; 10. Cooling ring; 11. Heat sink; 12. Sound insulation protective sleeve; 13. Mounting frame; 14. Electric telescopic rod; 15. Mounting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0020] As Figures 1 to 5 shown, the present invention provides a variable pitch shaftless dual-rotor ducted device, including a duct device 1. A support frame 2 is fixedly connected to the top end of the duct device 1. A protection chamber 3 is fixedly connected to the top end of the support frame 2. A drive motor 4 is fixedly connected to the inner cavity of the protection chamber 3. An adjustment blocking rod 5 is fixedly sleeved on the output shaft of the drive motor 4. A fixed blocking rod 6 is fixedly connected to the top end of the duct device 1. A bottom protection rod 7 is fixedly connected to the bottom end of the duct device 1;

[0021] By starting the drive motor 4 in the inner cavity of the protection chamber 3 to drive the adjustment blocking rod 5 to rotate, thereby driving the adjustment blocking rod 5 to rotate, and then adjusting the distance between the adjustment blocking rod 5 and the fixed blocking rod 6. Then, the bottom of the duct device 1 is protected by the bottom protection rod 7. Furthermore, the upper part of the duct device 1 is adjusted by adjusting the gap between the adjustment blocking rod 5 and the fixed blocking rod 6. Thus, the gap can be adjusted according to the flight environment or the parking environment. And the bottom of the duct device 1 is protected by the bottom protection rod 7, preventing foreign objects from entering the inner cavity of the duct device 1 from the bottom of the duct device 1 during maintenance and other operations, resulting in damage to the components inside the duct device 1.

[0022] Wherein, a cooling ring 10 is fixedly connected to the outside of the duct device 1. A heat sink 11 is fixedly connected to the outside of the cooling ring 10. A sound insulation protection sleeve 12 is fixedly sleeved on the outer surface of the cooling ring 10;

[0023] Through the cooling ring 10 on the outside of the duct device 1, the heat generated by the internal components of the duct device 1 during operation can be absorbed by the cooling ring 10, and the heat is transferred to the air through the heat sink 11, so as to contact the cold air at high altitude outside to cool the coolant in the inner cavity of the cooling ring 10. And the cooling ring 10 is protected by the sound insulation protection sleeve 12. Thus, the duct device 1 can be efficiently cooled and dissipated by the cooling ring 10, and the situation that the duct device 1 is damaged by external impact during flight is also avoided.

[0024] Wherein, a mounting bracket 13 is fixedly connected to the left side of the duct device 1. An electric telescopic rod 14 is fixedly connected to the left side of the mounting bracket 13. A mounting plate 15 is fixedly connected to the left side of the electric telescopic rod 14;

[0025] Through the setting of the mounting bracket 13, the mounting bracket 13 is connected between the electric telescopic rod 14 and the duct device 1, and then the mounting plate 15 is connected to the aircraft body, so as to support and fix the mounting bracket 13, the electric telescopic rod 14 and the duct device 1, and the position of the duct device 1 can be adjusted by the extension of the electric telescopic rod 14, so that the overall volume is smaller when the aircraft is parked.

[0026] Among them, the adjusting blocking rod 5 is movably connected above the fixed blocking rod 6, and the adjusting blocking rod 5 can rotate around the center of the duct device 1;

[0027] By movably connecting the adjusting blocking rod 5 above the fixed blocking rod 6, the adjusting blocking rod 5 and the fixed blocking rod 6 can be arranged in an interleaved manner. Then, by the adjusting blocking rod 5 being able to rotate around the center of the duct device 1, the adjusting blocking rod 5 can be interleaved with the fixed blocking rod 6 after rotation. And by the rotatability of the adjusting blocking rod 5, the distance between the adjusting blocking rod 5 and the fixed blocking rod 6 is adjustable, so as to be applicable to different environments. For example, the distance can be adjusted to be larger during flight to ensure stable aerodynamic performance, and when parked, the adjusting blocking rod 5 rotates to generate a distance from the fixed blocking rod 6 to protect against foreign objects.

[0028] Among them, the sound insulation protective sleeve 12 is a cavity body, and the inner cavity of the sound insulation protective sleeve 12 is filled with cooling water. One side of the heat dissipation fin 11 close to the cooling ring 10 is located in the inner cavity of the cooling ring 10;

[0029] Since the sound insulation protective sleeve 12 is a cavity body, the inner cavity of the sound insulation protective sleeve 12 can be filled with cooling water. Then, the cooling water in the inner cavity of the sound insulation protective sleeve 12 absorbs the heat generated during the operation of the duct device 1, so as to prevent the duct device 1 from directly contacting the external environment. And the heat absorbed by the cooling water in the inner cavity of the cooling ring 10 by the heat dissipation fin 11 is transferred to the air for dissipation, so as to dissipate heat.

[0030] Among them, a driving device 8 is arranged in the inner cavity of the duct device 1, and a paddle 9 is arranged in the inner cavity of the driving device 8;

[0031] Through the driving device 8 in the inner cavity of the duct device 1, the driving device 8 can drive the paddle 9 to rotate, and then, by the rotation of the paddle 9, a force for taking off upward is generated.

[0032] The working principle and usage process of the present utility model: Connect the mounting plate 15 to the aircraft, then adjust the distance between the duct device 1 and the aircraft by the telescopic movement of the electric telescopic rod 14. Then start the driving motor 4 to drive the adjusting blocking rod 5 to rotate. By the rotation of the adjusting blocking rod 5, the gap between the adjusting blocking rod 5 and the fixed blocking rod 6 is changed, so as to adjust the gap according to different parking environments or flight environments;

[0033] Then, the driving device 8 drives the propeller 9 to rotate, thereby driving the aircraft to fly. During the flight, heat is absorbed through the cooling ring 10 and the duct device 1. Then, the heat absorbed by the cooling ring 10 is transferred to the air through the heat sink 11. Further, the cooling ring 10 is cooled and dissipated by the low-temperature air at high altitude, thereby improving the heat dissipation efficiency of the duct device 1. In addition, the duct device 1 is protected by the sound insulation protective cover 12, and the generated noise may also be weakened to a certain extent.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A variable pitch shaftless dual-rotor ducted device, comprising a ducted device (1), characterized in that: The top end of the ducted device (1) is fixedly connected with a support frame (2). The top end of the support frame (2) is fixedly connected with a protective cabin (3). A driving motor (4) is fixedly connected inside the protective cabin (3). An adjusting blocking rod (5) is fixedly sleeved on the output shaft of the driving motor (4). A fixed blocking rod (6) is fixedly connected to the top end of the ducted device (1). A bottom protective rod (7) is fixedly connected to the bottom end of the ducted device (1).

2. The variable-pitch shaftless dual-rotor ducted device according to claim 1, wherein: A cooling ring (10) is fixedly connected to the outside of the ducted device (1). Heat dissipation fins (11) are fixedly connected to the outside of the cooling ring (10). A sound insulation protective sleeve (12) is fixedly sleeved on the outer surface of the cooling ring (10).

3. The variable pitch shaftless coaxial ducted fan device according to claim 1, wherein: An installation frame (13) is fixedly connected to the left side of the ducted device (1). An electric telescopic rod (14) is fixedly connected to the left side of the installation frame (13). An installation disk (15) is fixedly connected to the left side of the electric telescopic rod (14).

4. A variable-pitch shaftless dual-rotor ducted device according to claim 1, characterized in that: The adjusting blocking rod (5) is movably connected above the fixed blocking rod (6), and the adjusting blocking rod (5) can rotate around the center of the ducted device (1).

5. A variable pitch shaftless dual-rotor ducted device according to claim 2, characterized in that: The sound insulation protective sleeve (12) is a cavity body, and the inner cavity of the sound insulation protective sleeve (12) is filled with cooling water. One side of the heat dissipation fin (11) close to the cooling ring (10) is located inside the cooling ring (10).

6. A variable pitch shaftless dual-rotor ducted device according to claim 2, characterized in that: A driving device (8) is arranged inside the ducted device (1), and a paddle (9) is arranged inside the driving device (8).

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