A wing folding mechanism for a tilt-rotor aircraft

Abstract

The utility model discloses a wing folding mechanism of a tilt-rotor aircraft in the technical field of rotorcraft, comprising a fuselage and a wing, and characterized in that the wing is connected to the fuselage through a slewing bearing assembly, the slewing bearing assembly comprises an upper roller shaft, a slewing bearing, and a lower roller shaft, the upper end face of the upper roller shaft is connected to a fixed support of the wing, the lower end face of the upper roller shaft is connected to a fixed support of the outer ring of the slewing bearing, the inner ring of the slewing bearing is connected to a fixed support of the upper end face of the lower roller shaft, the lower end face of the lower roller shaft is connected to a fixed support of the fuselage, a driving device is also installed on the fuselage, and the driving device is used for driving the slewing bearing to rotate. The utility model can realize the folding of the wing and save parking space.

Description

Technical Field

[0001] The utility model relates to the technical field of rotorcraft, in particular to a wing folding mechanism. Background Art

[0002] Tilt-rotor aircraft not only have the advantages of fixed-wing aircraft, such as high speed and long range, but also have the advantages of helicopter vertical take-off and landing and low deployment site requirements. They have always been the key research and development direction of various countries. In order to achieve the storage and transfer of more aircraft in limited transportation space, designers pay great attention to how to store and transport more aircraft.

[0003] Tilt-rotor aircraft fold the wings, the main load-bearing components. When the wings are rotated to be parallel to the fuselage, the lateral area of ​​the fuselage can be effectively reduced, which can save a lot of parking space and provide new ideas for saving transportation costs, reducing hangar storage area, and quickly assembling aircraft fleets. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a wing folding mechanism for a tilt-rotor aircraft, which can realize folding of the wing and save parking space.

[0005] The purpose of the utility model is achieved as follows: a tilt-rotor aircraft wing folding mechanism, comprising a fuselage and a wing, characterized in that the wing is connected to the fuselage through a slewing bearing assembly, the slewing bearing assembly comprises an upper roller shaft, a slewing bearing, and a lower roller shaft, the upper end face of the upper roller shaft is connected to the wing fixed support, the lower end face of the upper roller shaft is connected to the outer ring of the slewing bearing, the inner ring of the slewing bearing is connected to the upper end face of the lower roller shaft, the lower end face of the lower roller shaft is connected to the fuselage fixed support, and a driving device is also installed on the fuselage, the driving device is used to drive the slewing bearing to rotate.

[0006] Furthermore, the outer ring of the slewing bearing adopts a gear structure, and the driving device includes a driving motor, the output shaft of the driving motor is transmission-connected with a driving gear, and the driving gear is meshed with the outer ring of the slewing bearing.

[0007] Furthermore, the driving device is an actuator cylinder, the outer ring of the slewing bearing is fixedly supported and connected with a hinge seat, and the output shaft of the actuator cylinder is hinged to the hinge seat.

[0008] Furthermore, the rear end of the actuating cylinder is hinged to the support sleeve, the support sleeve is sleeved on the support column, and the support column is installed on the fuselage.

[0009] Furthermore, the outer ring of the slewing bearing is processed with a groove, and the driving device includes a driving motor, the output shaft of the driving motor is drivingly connected to a capstan, and the capstan is drivingly connected to the outer ring of the slewing bearing through a rope.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a simple structure, direct and reliable force transmission, and is suitable for fuselage configurations with a small wing-fuselage docking space; and the slewing bearings and motors are shelf products, which are easy to purchase. The utility model can realize ground storage and transfer of multiple aircraft in a limited storage space, reducing transportation costs and shortening aircraft assembly time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0012] Figure 1 This is a structural schematic diagram of Example 1.

[0013] Figure 2 Schematic diagram of the connection between the driving device and the slewing bearing assembly in Example 1.

[0014] Figure 3 This is a structural diagram of Example 2.

[0015] Figure 4 Schematic diagram of the connection between the driving device and the slewing bearing assembly in Example 2.

[0016] Figure 5 This is a structural schematic diagram of Example 3.

[0017] Figure 6 Schematic diagram of the connection between the driving device and the slewing bearing assembly in Example 3.

[0018] Among them, 100 fuselage, 200 wing, 300 slewing bearing assembly, 301 upper roller shaft, 302 slewing bearing, 303 lower roller shaft, 400 driving device, 401 driving motor, 402 driving gear, 403 actuator, 404 hinge seat, 405 support sleeve, 406 support column, 407 winch, 408 winch rope. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1

[0021] like Figure 1-2 The tilt-rotor aircraft wing folding mechanism shown in the figure comprises a fuselage 100 and a wing 200, wherein the wing 200 is connected to the fuselage 100 via a slewing bearing assembly 300, wherein the slewing bearing assembly comprises an upper roller shaft 301, a slewing bearing 302, and a lower roller shaft 303, wherein the upper end surface of the upper roller shaft 301 is fixedly connected to the lower wing surface of the wing 200, the lower end surface of the upper roller shaft 301 is fixedly connected to the outer ring of the slewing bearing 302, and the inner ring of the slewing bearing 302 is fixedly connected to the lower roller shaft 303. The upper end surface of the shaft 303 is fixedly connected, and the lower end surface of the lower roller shaft 303 is fixedly connected to the fuselage 100. A driving device 400 is also installed on the fuselage 100. The driving device 400 is used to drive the slewing bearing 302 to rotate. The outer ring of the slewing bearing 302 adopts a gear structure. The driving device 400 includes a driving motor 401. The output shaft of the driving motor 401 is transmission-connected with a driving gear 402, and the driving gear 402 is meshed with the outer ring of the slewing bearing 302.

[0022] Specifically, the upper roller 301 and the lower roller 303 are both cylindrical structures, and the outer circumferences of the upper end face and the lower end face of the upper roller 301 are processed with flange edges, and the outer circumferences of the upper end face and the lower end face of the lower roller 303 are also processed with flange edges; the drive motor 401 is installed inside the fuselage 100, and the output shaft of the drive motor 401 extends from the fuselage 100, and the driving gear 402 is connected to the output shaft of the drive motor 401 by a key.

[0023] During operation, the driving motor 401 drives the driving gear 402 to rotate, and the driving gear 402 drives the outer ring of the slewing bearing 302 to rotate, and drives the wing 200 to rotate through the upper roller shaft 301 to achieve folding.

[0024] Example 2

[0025] like Figure 3-4 The folding mechanism of a tilt-rotor aircraft wing 200 shown in the figure comprises a fuselage 100 and a wing 200, wherein the wing 200 is connected to the fuselage 100 via a slewing bearing assembly 300, wherein the slewing bearing assembly comprises an upper roller 301, a slewing bearing 302, and a lower roller 303, wherein the upper end surface of the upper roller 301 is fixedly connected to the lower wing surface of the wing 200, the lower end surface of the upper roller 301 is fixedly connected to the outer ring of the slewing bearing 302, and the inner ring of the slewing bearing 302 is fixedly connected to the upper end surface of the lower roller 303 The lower end surface of the lower roller shaft 303 is fixedly connected to the fuselage 100. A driving device 400 is also installed on the fuselage 100. The driving device 400 is used to drive the slewing bearing 302 to rotate. The driving device 400 is an actuator 403. The outer ring of the slewing bearing 302 is fixedly connected with a hinge seat 404. The output shaft of the actuator 403 is hinged to the hinge seat 404. The rear end of the actuator 403 is hinged to the support sleeve 405. The support sleeve 405 is mounted on the support column 406. The support column 406 is installed on the fuselage 100.

[0026] Specifically, the upper roller 301 and the lower roller 303 are both cylindrical structures, and the upper and lower end surfaces of the upper roller 301 are processed with flange edges on their outer circumferences, and the upper and lower end surfaces of the lower roller 303 are also processed with flange edges on their outer circumferences.

[0027] During operation, the actuator 403 drives the outer ring of the slewing bearing 302 to rotate through the extension and retraction of the output shaft, and drives the wing 200 to rotate through the upper roller shaft 301 to achieve folding.

[0028] Example 3

[0029] like Figure 5-6 The folding mechanism of a tilt-rotor aircraft wing 200 shown in the figure comprises a fuselage 100 and a wing 200, wherein the wing 200 is connected to the fuselage 100 via a slewing bearing assembly 300, wherein the slewing bearing assembly comprises an upper roller 301, a slewing bearing 302, and a lower roller 303, wherein the upper end surface of the upper roller 301 is fixedly connected to the lower wing surface of the wing 200, the lower end surface of the upper roller 301 is fixedly connected to the outer ring of the slewing bearing 302, and the inner ring of the slewing bearing 302 is fixedly connected to the lower roller The upper end surface of the lower roller 303 is fixedly connected, and the lower end surface of the lower roller 303 is fixedly connected to the fuselage 100. A driving device 400 is also installed on the fuselage 100. The driving device 400 is used to drive the slewing bearing 302 to rotate. The outer ring of the slewing bearing 302 is processed with a groove. The driving device 400 includes a driving motor 401. The output shaft of the driving motor 401 is connected to a capstan 407. The capstan 407 is connected to the outer ring of the slewing bearing 302 through a rope 408.

[0030] Specifically, the upper roller 301 and the lower roller 303 are both cylindrical structures, and the outer circumferences of the upper end face and the lower end face of the upper roller 301 are processed with flange edges, and the outer circumferences of the upper end face and the lower end face of the lower roller 303 are also processed with flange edges; the drive motor 401 is installed inside the fuselage 100, and the output shaft of the drive motor 401 extends from the fuselage 100, and the capstan 407 is connected to the output shaft of the drive motor 401 by a key.

[0031] During operation, the driving motor 401 drives the winch 407 to rotate, and the winch 407 drives the outer ring of the slewing bearing 302 to rotate through the winch rope 408, and drives the wing 200 to rotate through the upper roller shaft 301 to achieve folding.

[0032] The above embodiments are only used to help understand the method and core idea of ​​the utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A wing folding mechanism for a tilt-rotor aircraft, comprising a fuselage (100) and a wing (200), characterized in that: The wing (200) is connected to the fuselage (100) via a slewing bearing assembly (300); the slewing bearing assembly comprises an upper roller shaft (301), a slewing bearing (302), and a lower roller shaft (303); the upper end surface of the upper roller shaft (301) is fixedly connected to the wing (200); the lower end surface of the upper roller shaft (301) is fixedly connected to the outer ring of the slewing bearing (302); the inner ring of the slewing bearing (302) is fixedly connected to the upper end surface of the lower roller shaft (303); the lower end surface of the lower roller shaft (303) is fixedly connected to the fuselage (100); and a driving device (400) is further installed on the fuselage (100); the driving device (400) is used to drive the slewing bearing (302) to rotate.

2. A wing folding mechanism for a tilt-rotor aircraft according to claim 1, characterized in that: The outer ring of the slewing bearing (302) adopts a gear structure, and the driving device (400) comprises a driving motor (401). The output shaft of the driving motor (401) is drivingly connected to a driving gear (402), and the driving gear (402) is meshed with the outer ring of the slewing bearing (302).

3. The wing folding mechanism of a tilt-rotor aircraft according to claim 1, characterized in that: The driving device (400) is an actuator cylinder (403), the outer ring of the slewing bearing (302) is fixedly supported and connected to a hinge seat (404), and the output shaft of the actuator cylinder (403) is hinged to the hinge seat (404).

4. A wing folding mechanism for a tilt-rotor aircraft according to claim 3, characterized in that: The rear end of the actuator cylinder (403) is hinged to the support sleeve (405), the support sleeve (405) is sleeved on the support column (406), and the support column (406) is installed on the fuselage (100).

5. The wing folding mechanism of a tilt-rotor aircraft according to claim 1, characterized in that: The outer ring of the slewing bearing (302) is machined with a groove, and the driving device (400) comprises a driving motor (401), the output shaft of the driving motor (401) is drivingly connected to a capstan (407), and the capstan (407) is drivingly connected to the outer ring of the slewing bearing (302) via a rope (408).

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