CN-115465440-B - Variable sweepback telescopic wing structure

CN115465440BCN 115465440 BCN115465440 BCN 115465440BCN-115465440-B

Abstract

The application relates to a variable sweep telescopic wing structure which comprises a wing table, a wing assembly, a first driving assembly, a rotating assembly and a lifting shaft, wherein the wing assembly comprises a first wing and a second wing, the first driving assembly, the rotating assembly and the lifting shaft are connected to the wing table in a parallel rotating mode, the first rotating shaft and the second rotating shaft are coaxially sleeved on the lifting shaft, the first rotating shaft and the lifting shaft are in fixed fit in the circumferential direction and in sliding fit in the axial direction, the first wing is connected to the top of the lifting shaft, the second wing is connected to the top of the second rotating shaft, the first wing and the second wing are of telescopic structures, and the first driving assembly is in transmission connection with the first rotating shaft and the second rotating shaft and is used for driving the first rotating shaft and the second rotating shaft to rotate and driving the lifting shaft to lift. The structure of the application can realize the wing unfolding and folding of any sweepback angle, increase the stability and flexibility of the aircraft, can be telescopic to change the wing area, adapt to different flight states, improve the wing efficiency and improve the flight performance.

Inventors

LU YAFEI
CHEN QINGYANG
HOU ZHONGXI
GUO ZHENG
WANG PENG
WANG YUJIE
FAN ZHENG

Assignees

中国人民解放军国防科技大学

Dates

Publication Date: 20260508
Application Date: 20221014

Claims (6)

1. The variable sweep telescopic wing structure comprises a wing platform and a wing assembly, wherein the wing assembly comprises a first wing and a second wing, and is characterized by further comprising a first driving assembly, a rotating assembly and a lifting shaft; The rotating assembly comprises a first rotating shaft and a second rotating shaft which are connected to the wing table in parallel in a rotating way, the first rotating shaft is coaxially sleeved on the lifting shaft, and the first rotating shaft and the lifting shaft are in fixed fit in the circumferential direction and in sliding fit in the axial direction; The first wing is connected to the top of the lifting shaft, the second wing is connected to the top of the second rotating shaft, the first wing and the second wing are of telescopic structures, and the telescopic structures are driving structures of a motor and a screw rod in a matched mode; The first driving component is in transmission connection with the first rotating shaft and the second rotating shaft and is used for driving the first rotating shaft and the second rotating shaft to rotate and driving the lifting shaft to lift; the first driving assembly comprises a steering engine, a first turbine, a second turbine and a worm; the steering engine is fixed on the wing table and is in transmission fit with the first turbine and the second turbine, the first turbine is arranged at the bottom of the first rotating shaft, the second turbine is arranged at the bottom of the second rotating shaft, and the first turbine and the second turbine are symmetrically arranged at two sides of the worm and are in transmission fit with the worm; The first driving assembly further comprises a potentiometer, and the potentiometer knob is fixedly connected with the second turbine; the wing platform or the machine body is fixedly connected with one end of the guide rod, and the other end of the guide rod passes through the spiral groove after passing through the transverse groove; The guide rod is connected with the spiral groove and the transverse groove in a sliding way.
2. The variable sweep telescopic wing structure according to claim 1, wherein the first turbine and the second turbine are each of a fan-shaped structure.
3. The variable sweep telescopic wing structure according to claim 1 or 2, further comprising a second drive assembly; The first wing comprises a first outer section wing and a first inner section wing, one end of the first inner section wing is connected with the lifting shaft, and the other end of the first inner section wing is sleeved with the first outer section wing; The second driving assembly comprises a first driving motor and a first lead screw, the first driving motor is fixedly arranged at the top of the lifting shaft, one end of the first lead screw is in transmission connection with the first driving motor, and the other end of the first lead screw penetrates through the first inner section wing and then is connected with the first outer section wing; The first lead screw is in running fit with the first inner section wing, and the first lead screw is in threaded fit with the first outer section wing.
4. A variable sweep telescopic wing structure as claimed in claim 3, further comprising a first connector; the head end of the first connecting piece is fixedly connected with the top of the lifting shaft, and the tail end of the first connecting piece is fixedly connected with the first inner section wing; The tail end of the first connecting piece is higher than the head end of the first connecting piece.
5. The variable sweep telescopic wing structure according to claim 1 or 2, further comprising a third drive assembly; the second wing comprises a second outer section wing and a second inner section Duan Yi, two ends of the second inner section Duan Yi are connected with the second rotating shaft, and the other ends of the second inner section Duan Yi are sleeved with the second outer section wing; The third driving assembly comprises a second driving motor and a second lead screw, the second driving motor is fixedly arranged at the top of the second rotating shaft, one end of the second lead screw is in transmission connection with the second driving motor, and the other end of the second lead screw penetrates through the second inner Duan Yi and then is connected with the second outer section wing; the second lead screw is in running fit with the second inner Duan Yi, and the second lead screw is in threaded fit with the second outer section wing.
6. The variable sweep telescopic wing structure according to claim 5, further comprising a second connector; the head end of the second connecting piece is fixedly connected with the top of the second rotating shaft, and the tail end of the second connecting piece is fixedly connected with the second inner section wing; the tail end of the second connecting piece is higher than the head end of the second connecting piece.

Description

Variable sweepback telescopic wing structure Technical Field The application relates to the technical field of unmanned aerial vehicles, in particular to a variable sweep telescopic wing structure. Background Unmanned aircraft have evolved into an irreplaceable piece of equipment that performs long-voyage reconnaissance, area surveillance, search positioning, fire guidance, and the like. The unmanned aerial vehicle is required to have smaller folding space in the storage, transportation and use stages of the unmanned aerial vehicle. At present, similar technologies have complex structures, folding is simple unfolding, and the unfolded wing does not have dihedral angles beneficial to aerodynamic performance. When folding, the wings at two sides are rotated to the same position to be stacked up and down, when the wing is unfolded, the wings at the two sides are unfolded in a rotating way. The wings are folded up and down to form a height difference, so that the wings are also unfolded to form a height difference, and the height difference can influence the aerodynamic performance of the aircraft. When unmanned aerial vehicles perform tasks, it is sometimes desirable to increase their speed to increase their ability to quickly pass through defenders, quickly hit, decrease their speed to increase their ability to scout for surveillance, and decrease their static margin to increase their flexibility in pitching. These demands are difficult to achieve by simply relying on flight control or control surface adjustment, and forced adjustment may even threaten the flight safety. The wing area and the sweepback angle of the unmanned aerial vehicle can influence the flight speed, the flight attack angle and other performance parameters of the unmanned aerial vehicle, and the purpose of executing various tasks by one unmanned aerial vehicle can be realized by changing the wing area and the sweepback angle of the unmanned aerial vehicle, so that the striking capacity and the defending capacity of the unmanned aerial vehicle are improved. Disclosure of Invention In order to overcome the defects, the invention provides the variable sweep telescopic wing structure, which can change various sweep angles of the wing, eliminate the height difference after the wing is unfolded and realize the extension of the wing so as to change the area of the wing on the premise of realizing small folding volume. In order to achieve the aim, the invention provides a variable sweep telescopic wing structure, which comprises a wing platform, a wing assembly and a first driving assembly, a rotating assembly and a lifting shaft, wherein the wing assembly comprises a first wing and a second wing; The wing rotating assembly comprises a first rotating shaft and a second rotating shaft which are connected to the wing table in parallel in a rotating way, the first rotating shaft is coaxially sleeved on the lifting shaft, and the first rotating shaft and the lifting shaft are in fixed fit in the circumferential direction and in sliding fit in the axial direction; the first wing is connected to the top of the lifting shaft, the second wing is connected to the top of the second rotating shaft, and the first wing and the second wing are of telescopic structures; The first driving component is in transmission connection with the first rotating shaft and the second rotating shaft, and is used for driving the first rotating shaft and the second rotating shaft to rotate and driving the lifting shaft to lift. In one embodiment, the first driving component comprises a steering engine, a first turbine, a second turbine and a worm; The steering engine is fixed on the wing table and is in transmission fit with the first turbine and the second turbine, the first turbine is arranged at the bottom of the first rotating shaft, the second turbine is arranged at the bottom of the second rotating shaft, and the first turbine and the second turbine are symmetrically arranged at two sides of the worm and are in transmission fit with the worm. In one embodiment, the lifting device further comprises a guide rod, a spiral groove is formed in the side wall of the lifting shaft, and a horizontal transverse groove is formed in the first rotating shaft; one end of the guide rod is fixedly connected with the wing table or the machine body, and the other end of the guide rod passes through the transverse groove and then passes through the spiral groove. In one embodiment, the first drive assembly further comprises a potentiometer, and the potentiometer knob is fixedly connected with the second turbine. In one embodiment, the first turbine and the second turbine are each of a fan-shaped configuration. In one embodiment, a second drive assembly is also included; The first wing comprises a first outer section wing and a first inner section wing, one end of the first inner section wing is connected with the lifting shaft, and the other end of the first inner section wing is sleeved wi