CN113401342B - Ducted fan wing - Google Patents

Abstract

The invention discloses a ducted fan wing in the field of ducted aircrafts, which comprises a wing, wherein an adapter plate is arranged on the right side of the wing, a duct is arranged below the adapter plate, the duct is rotationally connected with the adapter plate through the adapter plate, a swinging device for driving the duct to swing is arranged at the bottom of the duct, the left end of the swinging device is connected with the wing, a wind power device is arranged in the duct, a filter screen is arranged on the right side of the wind power device in the duct, the filter screen is detachably connected with the duct through screws, and three caliber adjusting devices extending to the outside of the filter screen are arranged on the right side of the filter screen in the duct. The invention has the advantages of convenient adjustment of the direction of the thrust, convenient adjustment of the wind pressure of the air outlet and small interference of external airflow.

Description

A ducted fan wing

technical field

The invention relates to the field of ducted aircraft, in particular to a ducted fan wing.

Background technique

The ducted fan can generate greater lift than an isolated fan of the same diameter, and the fan is enclosed in the duct, which can prevent the aerodynamic sound of the fan from spreading outward, and has a compact structure and high safety. A variety of small vertical take-off and landing unmanned aerial vehicles can be constructed using this as the lifting surface and the flight control surface.

The inclination angle of the wings of the existing ducted aircraft is inconvenient to adjust, which leads to the inconvenience of adjusting the direction of the thrust produced by the ducted fan; the size of the air outlet cannot be adjusted, resulting in the inability to adjust the wind pressure and the inability to cope with the external disturbance airflow in different situations.

Contents of the invention

The purpose of the present invention is to provide a ducted fan airfoil to solve the problems raised in the background art above.

To achieve the above object, the present invention provides the following technical solutions:

A ducted fan wing, comprising a wing, an adapter plate is installed on the right side of the wing, a duct is installed under the adapter plate, the duct is rotationally connected with the adapter plate through an adapter device, a swing device for driving it to swing is installed at the bottom of the duct, the left end of the swing device is connected with the wing, a wind device is installed in the duct, a filter is installed in the duct on the right side of the wind device, the filter is detachably connected to the duct by screws, and the right side of the filter is connected to the duct There are three caliber adjustment devices extending to the outside installed inside.

As a further solution of the present invention: the transfer device includes: a rotating shaft, a first shaft sleeve and a mounting block, the rotating shaft is welded to the top of the duct, the left and right ends of the rotating shaft are rotationally connected to the first shaft sleeve through bearings, and the first shaft sleeve is fixed to the adapter plate through the mounting block.

As a further solution of the present invention: the swing angle of the duct is 0-20°.

As a further solution of the present invention: the swing device includes: a first hinge base, a base, a servo motor, a first gear, a second gear, a threaded rod, a ball, a threaded sleeve and a second hinged base. The base is rotationally connected to the wing through the first hinged base. A servo motor is installed on the base. A first gear is installed on the output shaft of the servo motor. The ball is connected with the threaded rod, and the top of the threaded sleeve is rotatably connected with the bottom of the duct through the second hinge seat.

As a further solution of the present invention: the wind power device includes: a bearing plate, a connecting ring, through holes, bolts and a fan, the connecting ring is detachably connected to the duct through a plurality of bolts, a bearing plate is installed in the connecting ring, a plurality of through holes are evenly distributed on the bearing plate, and a fan is installed on the right side of the bearing plate.

As a further solution of the present invention: the three diameter adjusting devices are evenly distributed on the duct in a circular shape.

As a further solution of the present invention: the caliber adjustment device includes: a hydraulic cylinder, a pressure ball, an adjustment plate, a spring, a second bushing and a pin shaft. The hydraulic cylinder is installed outside the duct. The telescopic rod of the hydraulic cylinder extends into the duct to connect with the pressure ball. An adjustment plate is installed below the pressure ball. A pin shaft is installed on the left end of the adjustment plate. The pin shaft extends into the second shaft sleeve.

As a further solution of the present invention: the cross-section of the regulating plate is in the shape of a third of an arc.

Compared with the prior art, the beneficial effect of the present invention is: when the ducted fan wing is in use, the fan can generate thrust, the first gear is driven to rotate through the servo motor, the second gear is driven to rotate through the rotation of the first gear, the threaded rod is driven to rotate through the rotation of the second gear, the threaded sleeve is driven to move through the rotation of the threaded rod, the second hinge seat is driven to swing through the movement of the threaded sleeve, and the swing of the second hinge base is driven to swing the duct, which is beneficial to adjust the direction of thrust; The adjustment of the size of the tuyere, and then the air pressure of the air outlet, reduces the influence of the external airflow on the airflow of the air outlet of the duct; the filter can prevent debris from entering the duct. To sum up, the present invention is convenient to adjust the direction of the thrust, to adjust the wind pressure at the air outlet, and to have little interference with the external air flow.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic diagram of a partial three-dimensional structure in the present invention.

Fig. 3 is a schematic diagram of the deflection state of the structural diagram of the present invention.

Fig. 4 is a partial view at A in the structural schematic diagram of the present invention.

Fig. 5 is a B-B arrow view in the structural schematic diagram of the present invention.

Among the figure: 1-wing, 2-adapter plate, 3-duct, 4-transfer device, 401-rotating shaft, 402-first shaft sleeve, 403-installation block, 5-swing device, 501-first hinge seat, 502-base, 503-servo motor, 504-first gear, 505-second gear, 506-thread rod, 507-ball, 508-thread sleeve, 509-second hinge seat, 6-wind device , 601-loading plate, 602-connecting ring, 603-through hole, 604-bolt, 605-fan, 7-filter, 8-diameter adjustment device, 801-hydraulic cylinder, 802-pressure ball, 803-adjusting plate, 804-spring, 805-second bushing, 806-pin.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified and limited, the terms "first", "second" and "third" are for the purpose of clearly describing the numbering of product components and do not represent any substantial difference. The directions of "up", "down", "left" and "right" are all subject to the directions shown in the attached drawings. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present invention according to specific situations.

It should be noted that, unless otherwise specified and limited, the term "connection" should be understood in a broad sense, for example, it may be a direct connection or an indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the invention in specific situations.

Example

Please refer to FIGS. 1 to 5. In an embodiment of the present invention, a ducted fan wing includes a wing 1. An adapter plate 2 is installed on the right side of the wing 1. A duct 3 is installed below the adapter plate 2. The duct 3 is rotationally connected with the adapter plate 2 through an adapter device 4. The adapter device 4 includes: a rotating shaft 401, a first sleeve 402 and a mounting block 403. The rotating shaft 401 is welded to the top of the duct 3. The shaft sleeve 402 is rotationally connected, the first shaft sleeve 402 is fixed with the adapter plate 2 through the mounting block 403, the bottom of the duct 3 is equipped with a swing device 5 for driving it to swing, the left end of the swing device 5 is connected with the wing 1, and the swing angle of the duct 3 is 0-20°. 07. Thread sleeve 508 and second hinge seat 509. The base 502 is rotationally connected with the wing 1 through the first hinge seat 501. A servo motor 503 is installed on the base 502. A first gear 504 is installed on the output shaft of the servo motor 503. A second gear 505 is installed on one side of the first gear 504 to rotate with it. The second gear 505 is installed on a threaded rod 506. The threaded rod 506 is connected to the base 502 through a bearing. The outer side of 06 is equipped with a threaded sleeve 508, the threaded sleeve 508 is connected with the threaded rod 506 through a plurality of balls 507, the top of the threaded sleeve 508 is connected to the bottom of the duct 3 through the second hinge seat 509, and the wind power device 6 is installed in the duct 3, and the wind power device 6 includes: a bearing plate 601, a connecting ring 602, a through hole 603, bolts 604 and a fan 605. A bearing plate 601 is installed in the connecting ring 602, a plurality of through holes 603 are evenly distributed on the bearing plate 601, a fan 605 is installed on the right side of the bearing plate 601, a filter screen 7 is installed in the duct 3 on the right side of the wind power device 6, and the filter screen 7 is detachably connected with the duct 3 by screws. Caliber adjustment device 8 includes: hydraulic cylinder 801, pressure ball 802, adjustment plate 803, spring 804, second bushing 805 and pin 806. The hydraulic cylinder 801 is installed outside the duct 3. The telescopic rod of the hydraulic cylinder 801 extends into the duct 3 and connects with the pressure ball 802. An adjustment plate 803 is installed under the pressure ball 802. The cross section of the adjustment plate 803 is one-third arc-shaped. shaft 806 , the pin shaft 806 extends into the second shaft sleeve 805 , the pin shaft 806 is rotationally connected with the second shaft sleeve 805 , and the inner wall of the duct 3 is provided with a plurality of springs 804 connected with the adjustment plate 803 . When in use, turn on the fan 605 to generate thrust, drive the first gear 504 to rotate through the servo motor 503, drive the second gear 505 to rotate through the rotation of the first gear 504, rotate the threaded rod 506 through the rotation of the second gear 505, drive the threaded sleeve 508 to move through the rotation of the threaded rod 506, drive the second hinge seat 509 to swing through the movement of the threaded sleeve 508, and drive the swing of the duct 3 through the swing of the second hinge base 509, which is conducive to adjusting the direction of the thrust; drive the pressure ball through the hydraulic cylinder 801 802 moves, and the adjustment plate 803 is driven to swing by the movement of the pressure ball 802, and the adjustment of the size of the air outlet is realized by the swing of the adjustment plate 803, and then the air pressure of the air outlet is adjusted to reduce the influence of the external air flow on the air flow at the air outlet of the duct 3; the filter screen 7 can prevent foreign matter from entering the duct 3.

The ducted fan wing, when in use, opens the fan 605 to generate thrust. The servo motor 503 drives the first gear 504 to rotate, the first gear 504 rotates to drive the second gear 505 to rotate, the second gear 505 rotates to drive the threaded rod 506 to rotate, the threaded rod 506 rotates to drive the threaded sleeve 508 to move, the threaded sleeve 508 moves to drive the second hinge seat 509 to swing, and the second hinge seat 509 swings to drive the duct 3 to swing, which is beneficial to adjust the direction of thrust; The cylinder 801 drives the pressure ball 802 to move, and the movement of the pressure ball 802 drives the adjustment plate 803 to swing, and the adjustment plate 803 swings to realize the adjustment of the size of the air outlet, and then adjust the air pressure of the air outlet to reduce the influence of the external air flow on the air flow at the air outlet of the duct 3; the filter screen 7 can prevent debris from entering the duct 3.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, no matter from which point of view, all the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so all changes within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. The utility model provides a duct fan wing, includes wing (1), its characterized in that, adapter plate (2) are installed on the right side of wing (1), duct (3) are installed to the below of adapter plate (2), duct (3) are connected through adapter device (4) and adapter plate (2) rotation, swing device (5) that are used for driving its wobbling are installed to the bottom of duct (3), the left end of swing device (5) links to each other with wing (1), install wind-force device (6) in duct (3), filter screen (7) are installed in duct (3) on the right side of wind-force device (6), filter screen (7) are connected through screw and duct (3) detachably, three bore adjusting device (8) that extend to its outside are installed in duct (3) on the right side of filter screen (7);

the novel wing-mounted device comprises a first hinge seat (501), a base (502), a servo motor (503), a first gear (504), a second gear (505), a threaded rod (506), balls (507), a thread bush (508) and a second hinge seat (509), wherein the base (502) is rotationally connected with a wing (1) through the first hinge seat (501), the servo motor (503) is installed on the base (502), the first gear (504) is installed on an output shaft of the servo motor (503), a second gear (505) which is rotationally matched with the first gear (504) is installed on one side of the first gear (504), the second gear (505) is installed on the threaded rod (506), the threaded rod (506) is rotationally connected with the base (502) through a bearing, the thread bush (508) is installed on the outer side of the threaded rod (506), the thread bush (508) is connected with the 506 through a plurality of balls (507), and the top of the thread bush (508) is rotationally connected with the bottom of the culvert (3) through the second hinge seat (509).

The three caliber adjusting devices (8) are circularly and uniformly distributed on the duct (3);

the aperture adjusting device (8) comprises: pneumatic cylinder (801), pressure ball (802), regulating plate (803), spring (804), second sleeve (805) and round pin axle (806), the outside in duct (3) is installed in pneumatic cylinder (801), the telescopic link of pneumatic cylinder (801) extends to in duct (3) and links to each other with pressure ball (802), regulating plate (803) are installed to the below of pressure ball (802), round pin axle (806) are installed to the left end of regulating plate (803), round pin axle (806) extend to in second sleeve (805), round pin axle (806) are connected with second sleeve (805) rotation, a plurality of springs (804) that link to each other with regulating plate (803) are installed to the inner wall of duct (3).

2. Ducted fan wing according to claim 1, characterized in that the adapter device (4) comprises: the rotary shaft (401), first axle sleeve (402) and installation piece (403), the top in duct (3) is welded in axis of rotation (401), both ends are rotated through bearing and first axle sleeve (402) respectively about axis of rotation (401), first axle sleeve (402) are fixed with keysets (2) through installation piece (403).

3. Ducted fan wing according to claim 1, characterized in that the angle of oscillation of the duct (3) is 0-20 °.

4. Ducted fan wing according to claim 1, characterized in that the wind power plant (6) comprises: the novel fan comprises a bearing plate (601), a connecting ring (602), through holes (603), bolts (604) and a fan (605), wherein the connecting ring (602) is detachably connected with a duct (3) through a plurality of bolts (604), the bearing plate (601) is installed in the connecting ring (602), a plurality of through holes (603) are uniformly distributed in the bearing plate (601), and the fan (605) is installed on the right side of the bearing plate (601).

5. The ducted fan wing according to claim 1, characterized in that the cross section of the adjusting plate (803) is one third of an arc.