CN117885891A - Vector propulsion device - Google Patents
Vector propulsion device Download PDFInfo
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- CN117885891A CN117885891A CN202311563999.6A CN202311563999A CN117885891A CN 117885891 A CN117885891 A CN 117885891A CN 202311563999 A CN202311563999 A CN 202311563999A CN 117885891 A CN117885891 A CN 117885891A
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Abstract
The invention discloses a vector propulsion device, comprising: the steering rod driving mechanism is used for driving the steering rod to rotate; the propeller propulsion mechanism includes: the device comprises a fixed seat fixed on a corresponding tilting wing, an engine arranged on the fixed seat, a second gear reducer arranged on an output shaft of the engine and a propeller coaxially fixed with the second gear reducer; the two ends of the steering rod are respectively fixed with the fixed seats of the two propeller propelling mechanisms, and the axis of the steering rod is perpendicular to the axis of the second gear reducer. According to the invention, the steering rod is driven to rotate by the steering rod driving mechanism, so that the propeller propelling mechanisms at two sides are driven to rotate simultaneously, the adjustment of the working mode and the flight mode of the aircraft is realized, the design difficulty of a flight control system is effectively reduced, and the safety is improved.
Description
Technical Field
The invention relates to the technical field of aircrafts, in particular to a vector propulsion device.
Background
The tilt rotor aircraft combines two flight modes of the fixed-wing aircraft and the helicopter, has the advantages of vertical take-off and landing of the helicopter and hovering, and has the advantages of high cruise speed, low oil consumption and long aviation duration of the fixed-wing aircraft. However, in a vertical take-off and landing mode of the aircraft, the wing will block the downward flow of the washing air generated by the rebound rotor, resulting in a certain reduction of the effective lift of the rotor. Meanwhile, turbulence generated by mutual interference of the rotor wings and the wings can seriously affect the stability of the aircraft, and great challenges are brought to flight control of the aircraft.
Accordingly, there is a need for a vector propulsion device that eliminates interactions between rotor slip flow and wing structure in vertical take-off and landing modes.
Disclosure of Invention
In order to solve the technical problems in the background technology, the invention provides a vector propulsion device.
The invention provides a vector propulsion device, which comprises: the steering system comprises a steering rod, a supporting mechanism, two propeller propelling mechanisms and a steering rod driving mechanism;
the two propeller propulsion mechanisms are respectively fixed on the two tilting wings; wherein, screw propulsion mechanism includes: the device comprises a fixed seat, an engine, a second gear reducer and a propeller; the fixed seats are used for being fixed on the corresponding tilting wings, the engine is arranged on the fixed seats, the second gear reducer is arranged on an output shaft of the engine, and the propeller and the second gear reducer are coaxially fixed;
the supporting mechanism is used for being fixed on the machine body structure; the steering rod is rotatably arranged on the supporting structure, two ends of the steering rod are respectively fixed with the fixed seats of the two propeller propulsion mechanisms, and the axis of the steering rod is vertical to the axis of the second gear reducer;
the steering rod driving mechanism is used for being fixed on the machine body structure, is connected with the steering rod and is used for driving the steering rod to rotate.
Further, the axes of the second gear reducers of the two propeller propulsion mechanisms are located on the upper side and the lower side of the axis of the steering rod, respectively.
Further, the steering rod driving mechanism comprises a direct current motor, a first gear reducer and a chain transmission assembly, wherein the direct current motor is fixed on the machine body structure, the first gear reducer is arranged on an output shaft of the direct current motor, and the chain transmission assembly is in transmission connection between the first gear reducer and the steering rod.
Further, the chain transmission assembly comprises a large sprocket, a small sprocket and a transmission chain; the large chain wheel is coaxially fixed on the steering rod, the small chain wheel is coaxially fixed on the output shaft of the first gear reducer, and the transmission chain is wound between the large chain wheel and the small chain wheel.
Further, the steering device also comprises an angle detection mechanism, wherein the angle detection mechanism is used for detecting the rotation angle of the steering rod.
Further, the angle detection mechanism comprises an angle sensor, a driving gear, a driven gear and a fixed bracket; the driving gear is coaxially fixed on the steering rod, the fixed support is fixed on a machine body mechanism on one side of the driving gear, the angle sensor is installed on the driven gear installation frame, the driven gear is fixed on a rotating shaft of the angle sensor, and the driven gear is meshed with the driving gear to be connected: wherein, the gear ratio of the driving gear and the driven gear is 1:1.
further, the supporting mechanism comprises two fixed supporting frames, the two fixed supporting frames are respectively fixed on the machine body mechanisms positioned on two sides of the chain transmission assembly, and the two fixed supporting frames are respectively connected with the steering rod in a rotating mode so as to rotatably support the steering rod.
Further, the steering device also comprises two supporting limiting blocks and two steering rod limiting blocks, wherein the two steering rod limiting blocks are respectively fixed on the steering rod and positioned at two sides of the chain transmission assembly, and the straight line where the two steering rod limiting blocks are positioned is parallel to the axis of the steering rod;
the two support limiting blocks are respectively fixed on one side of the two fixed support frames facing the chain transmission assembly, the straight lines where the two support limiting blocks are located are parallel to the axis of the steering rod, and the two support limiting blocks are located on the movable strokes of the two steering rod limiting blocks in a one-to-one correspondence mode.
Further, each engine is connected with a coaxial direct-drive generator.
According to the vector propulsion device, the steering rod is driven to rotate through the steering rod driving mechanism, so that the propeller propulsion mechanisms at two sides are driven to rotate simultaneously, and the tilting wings at two sides are driven to tilt simultaneously, the adjustment of the working mode and the flight mode of the aircraft is realized, the design difficulty of a flight control system is effectively reduced, and the safety is improved.
Drawings
Fig. 1 is a schematic perspective view of a vector propulsion device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a vector propulsion device according to an embodiment of the present invention.
Fig. 3 is a schematic partial view of a vector propulsion device according to an embodiment of the present invention.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 and 2, a vector propulsion device according to the present invention includes: the steering rod comprises a steering rod 1, a supporting mechanism, two propeller propelling mechanisms and a steering rod driving mechanism;
the two propeller propulsion mechanisms are respectively fixed on the two tilting wings; wherein, screw propulsion mechanism includes: the device comprises a fixed seat 12, an engine 13, a second gear reducer 14 and a propeller 15; the fixed seat 12 is used for being fixed on a corresponding tilting wing, the engine 13 is mounted on the fixed seat 12, the second gear reducer 14 is mounted on an output shaft of the engine 13, and the screw 15 and the second gear reducer 14 are coaxially fixed;
the supporting mechanism is used for being fixed on the machine body structure; the steering rod 1 is rotatably arranged on the supporting structure, two ends of the steering rod 1 are respectively fixed with the fixed seats 12 of the two propeller propulsion mechanisms, and the axis of the steering rod 1 is perpendicular to the axis of the second gear reducer 14;
the steering rod driving mechanism is used for being fixed on the machine body structure, is connected with the steering rod 1 and is used for driving the steering rod 1 to rotate.
According to the invention, the structure that the propeller propulsion mechanisms at two sides and the steering rod 1 are coaxially arranged is adopted, so that real-time synchronization of tilting motion of the propeller propulsion mechanisms at two sides can be ensured, and the working mode and the flight mode of the aircraft can be adjusted by changing the horizontal position or the vertical position of the rotor wing, namely the propeller thrust, thereby effectively reducing the design difficulty of a flight control system and improving the safety of the system.
In order to solve the problem that the thrust line of the propeller 15 deviates from the axis of the steering rod 1 and the thrust of the propeller 15 forms a retarding moment on the whole tilting of the steering rod 1 caused by the externally meshed second gear reducer 14, in this embodiment, the axes of the second gear reducers 14 of the two propeller propulsion mechanisms are respectively located at the upper side and the lower side of the axis of the steering rod 1, so that the thrust acting line of one propeller 15 is lower than the axis of the steering rod 1, the thrust acting line of the other propeller 15 is higher than the axis of the steering rod 1, and the rotation retarding moment of the steering rod 1 formed by the thrust of the propeller 15 is balanced, thereby effectively reducing the energy consumption in the thrust vector control process and improving the safety and the robustness of the thrust vector control.
In a further embodiment, the second gear reducer 14 is configured to be disposed outside the front edge of the tilting wing, so that integration of a large-pitch propeller propulsion mechanism can be achieved, and propulsion efficiency under low-speed flight conditions such as vertical takeoff/landing is effectively improved.
In this embodiment, the steering rod driving mechanism includes a direct current motor 6, a first gear reducer 7, and a chain transmission assembly, wherein the direct current motor 6 is fixed on the body structure, the first gear reducer 7 is mounted on an output shaft of the direct current motor 6, and the chain transmission assembly is in transmission connection between the first gear reducer 7 and the steering rod 1.
In specific implementation, after the direct current motor 6 drives the steering rod 1 to drive the propeller propulsion mechanism to rotate to a target angle position, a brake integrated at the rear end of an output shaft of the direct current motor 6 is in power-off locking, and after the output locking moment is amplified and transmitted by the chain transmission assembly, the locking moment is provided for the steering rod 1, so that the angle position (namely the thrust vector angle) of the steering rod 1 is kept fixed.
In the embodiment, the direct current motor 6 is adopted as an external power source to provide driving moment for the whole tilting of the propeller propulsion mechanism, and the direct current motor 6 can realize 360-degree continuous rotation and has the function of regulating the working rotation speed/acceleration, so that the working adaptability of the vector propulsion device can be effectively improved; moreover, on the premise of not additionally adding equipment or a mechanism, the output shaft of the direct current motor 6 is used for braking to realize the locking of thrust vector angular orientation, so that the dead weight is effectively reduced, and the working reliability is improved;
secondly, a two-stage speed reduction scheme of the first gear reducer 7 and the chain transmission assembly is adopted to realize the matching of the rotation speed and the driving torque between the rotation action of the direct current motor 661 and the tilting action of the propeller propulsion mechanism, so that the work load of the direct current motor 6 in the thrust vector adjustment process is effectively reduced, and the power consumption of an aircraft system is greatly reduced;
finally, the chain transmission component is used as flexible transmission, can bear impact vibration generated in the working process of the engine 13 of the propeller propulsion mechanism, and ensures the working reliability of the vector propulsion device; meanwhile, compared with belt transmission, the chain transmission device has no elastic sliding and integral sliding phenomena, has stronger environmental adaptability, and ensures transmission efficiency.
Specifically, the direct current motor 6 is selected from direct current motors 6 of 18V to 32V.
In a further embodiment, the chain drive assembly comprises a large sprocket 3, a small sprocket 5 and a drive chain 4; the large chain wheel 3 is coaxially fixed on the steering rod 1, the small chain wheel 5 is coaxially fixed on the output shaft of the first gear reducer 7, and the transmission chain 4 is wound between the large chain wheel 3 and the small chain wheel 5.
Specifically, the transmission chain 4 is a multi-row transmission chain, so that stable transmission is ensured, and the bearing capacity is improved.
Specifically, the small chain wheel 5 is connected to the machine body structure through the small chain wheel 5 mounting support, so that the working stability is improved.
In the present embodiment, an angle detection mechanism for detecting the turning angle of the steering lever 1 is further included. The embodiment is provided with the angle feedback component, and can realize real-time monitoring and closed-loop control on the angle position in the process of implementing thrust vector control.
In a further embodiment, the angle detection mechanism comprises an angle sensor 8, a driving gear 10, a driven gear 11 and a fixed bracket 9; the driving gear 10 is coaxially fixed on the steering rod 1, the fixed bracket 9 is fixed on a body mechanism on one side of the driving gear 10, the angle sensor 8 is installed on a driven gear 11 installation frame, the driven gear 11 is fixed on a rotating shaft of the angle sensor 8, and the driven gear 11 is in meshed connection with the driving gear 10: wherein the gear ratio of the driving gear 10 and the driven gear 11 is 1:1.
in specific implementation, when the steering rod 1 rotates, the angle sensor 8 monitors the rotation angle of the steering rod 1 in real time by means of the fixed connection between the driven gear 11 and the rotating shaft and the engagement between the driven gear 11 and the driving gear 10, so that the real-time acquisition of the angle position information of the steering rod 1 is realized.
Referring to fig. 3, in the present embodiment, the supporting mechanism includes two fixed supporting frames 2, the two fixed supporting frames 2 are respectively fixed on the frame mechanisms located at both sides of the chain transmission assembly, and the two fixed supporting frames 2 are respectively rotatably connected with the steering rod 1 to rotatably support the steering rod 1.
Specifically, the fixed support frame 2 is rotatably connected with the steering rod 1 through a rolling bearing.
Referring to fig. 3, in order to limit the rotation angle of the steering rod 1, so as to realize emergency braking after the thrust direction angle is in place, so that the safety and robustness of the thrust vector control of the aircraft can be effectively improved, in a further embodiment, the steering device further comprises two supporting limiting blocks 18 and two steering rod limiting blocks 17, wherein the two steering rod limiting blocks 17 are respectively fixed on the steering rod 1 and are positioned at two sides of the chain transmission assembly, and the straight line where the two steering rod limiting blocks 17 are positioned is parallel to the axis of the steering rod 1;
the two supporting limiting blocks 18 are respectively fixed on one side of the two fixed supporting frames 2 facing the chain transmission assembly, the straight line where the two supporting limiting blocks 18 are located is parallel to the axis of the steering rod 1, and the two supporting limiting blocks 18 are located on the movable strokes of the two steering rod limiting blocks 17 in a one-to-one correspondence mode.
Specifically, two steering rod stoppers 17 are symmetrically arranged on both sides of the chain transmission assembly, and two support stoppers 18 are symmetrically arranged on both sides of the chain transmission assembly to better perform the stopper.
It should be noted that the dimensions and mounting positions of the support stopper 18 and the two steering rod stoppers 17 may be set according to a defined rotation angle range.
It should be noted that, on the premise of meeting the rigidity and strength requirements, the steering rod 1 adopts a hollow tube structure so as to compress the structural weight of the machine body and improve the effective load energy.
In the present embodiment, each engine 13 is connected with a coaxial direct-drive generator 16 to effectively improve the reliability of power supply.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. A vector propulsion device, comprising: the steering system comprises a steering rod (1), a supporting mechanism, two propeller propelling mechanisms and a steering rod driving mechanism;
the two propeller propulsion mechanisms are respectively fixed on the two tilting wings; wherein, screw propulsion mechanism includes: the device comprises a fixed seat (12), an engine (13), a second gear reducer (14) and a propeller (15); the fixed seats (12) are used for being fixed on the corresponding tilting wings, the engine (13) is mounted on the fixed seats (12), the second gear reducer (14) is mounted on an output shaft of the engine (13), and the screw propeller (15) and the second gear reducer (14) are coaxially fixed;
the supporting mechanism is used for being fixed on the machine body structure; the steering rod (1) is rotatably arranged on the supporting structure, two ends of the steering rod (1) are respectively fixed with the fixed seats (12) of the two propeller propulsion mechanisms, and the axis of the steering rod (1) is perpendicular to the axis of the second gear reducer (14);
the steering rod driving mechanism is used for being fixed on the machine body structure, is connected with the steering rod (1), and is used for driving the steering rod (1) to rotate.
2. A vector propulsion device according to claim 1, characterized in that the axes of the second gear reducers (14) of the two propeller propulsion mechanisms are located on the upper and lower side of the axis of the steering rod (1), respectively.
3. A vector propulsion device according to claim 1, characterized in that the steering rod drive mechanism comprises a direct current motor (6), a first gear reducer (7) and a chain transmission assembly, the direct current motor (6) being arranged to be fixed to the fuselage structure, the first gear reducer (7) being mounted on the output shaft of the direct current motor (6), the chain transmission assembly being drivingly connected between the first gear reducer (7) and the steering rod (1).
4. A vector propulsion device according to claim 3, characterized in that the chain drive assembly comprises a large sprocket (3), a small sprocket (5) and a drive chain (4); the large chain wheel (3) is coaxially fixed on the steering rod (1), the small chain wheel (5) is coaxially fixed on the output shaft of the first gear reducer (7), and the transmission chain (4) is wound between the large chain wheel (3) and the small chain wheel (5).
5. The vector propulsion device according to claim 1, further comprising an angle detection mechanism for detecting the turning angle of the steering rod (1).
6. The vector propulsion device according to claim 5, characterized in that the angle detection mechanism comprises an angle sensor (8), a driving gear (10), a driven gear (11) and a fixed bracket (9); the driving gear (10) is coaxially fixed on the steering rod (1), the fixed support (9) is fixed on a machine body mechanism on one side of the driving gear (10), the angle sensor (8) is installed on the installation frame of the driven gear (11), the driven gear (11) is fixed on the rotation shaft of the angle sensor (8), and the driven gear (11) is meshed and connected with the driving gear (10): wherein the gear ratio of the driving gear (10) and the driven gear (11) is 1:1.
7. the vector propulsion device according to claim 1, characterized in that the support mechanism comprises two fixed support frames (2), the two fixed support frames (2) are respectively fixed on the frame mechanism at two sides of the chain transmission assembly, and the two fixed support frames (2) are respectively in rotary connection with the steering rod (1) so as to rotatably support the steering rod (1).
8. The vector propulsion device according to claim 7, further comprising two supporting limiting blocks (18) and two steering rod limiting blocks (17), wherein the two steering rod limiting blocks (17) are respectively fixed on the steering rod (1) and are positioned at two sides of the chain transmission assembly, and a straight line where the two steering rod limiting blocks (17) are positioned is parallel to the axis of the steering rod (1);
the two support limiting blocks (18) are respectively fixed on one side of the two fixed supporting frames (2) facing the chain transmission assembly, the straight line where the two support limiting blocks (18) are located is parallel to the axis of the steering rod (1), and the two support limiting blocks (18) are located on the movable strokes of the two steering rod limiting blocks (17) in a one-to-one correspondence mode.
9. A vector propulsion device according to claim 1, characterized in that each engine (13) is connected with a coaxial direct-drive generator (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311563999.6A CN117885891A (en) | 2023-11-20 | 2023-11-20 | Vector propulsion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311563999.6A CN117885891A (en) | 2023-11-20 | 2023-11-20 | Vector propulsion device |
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| Publication Number | Publication Date |
|---|---|
| CN117885891A true CN117885891A (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311563999.6A Pending CN117885891A (en) | 2023-11-20 | 2023-11-20 | Vector propulsion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118083101A (en) * | 2024-04-26 | 2024-05-28 | 智真海洋科技(威海)有限公司 | Tilting device of underwater propeller |
-
2023
- 2023-11-20 CN CN202311563999.6A patent/CN117885891A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118083101A (en) * | 2024-04-26 | 2024-05-28 | 智真海洋科技(威海)有限公司 | Tilting device of underwater propeller |
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