A double folding shaft linkage folding wing mechanism

Abstract

The application relates to a linkage type double-folding-axis folding wing mechanism, which comprises a support, an inner wing, an outer wing, an actuating device, a driving rod, a sliding block and a connecting rod. When the actuating device pulls the ear piece to swing into the opening, the convex block rotates relative to the support, drives the inner wing to rotate and unfold, the inner wing drives the driving rod to rotate, the sliding block slides to the upper edge of the inner wing, the sliding block drives the outer wing to rotate and unfold through the connecting rod, and the inner wing and the outer wing form an integrated wing surface. The linkage unfolding of the double-folding-axis folding wing is realized only by a single power source, the space volume and the cost of the folding wing are greatly reduced, and the wing surface is free of protrusion after unfolding.

Description

Technical Field

[0001] This invention relates to the field of folding wing surface technology, specifically a dual-folding-axis linkage folding wing surface mechanism. Background Technology

[0002] To achieve high-density missile mounting or reduce launch tube size, many missiles employ folding wings to minimize the missile envelope. However, most publicly available folding wing mechanisms are single-folding-axis. When the wing span is long and the folding envelope requirements are stringent, a single folding-axis may not meet the needs. Dual-folding-axis mechanisms, using two power sources, impose higher demands on space and cost, and often result in bulges after wing deployment, affecting the aerodynamic shape. Therefore, a linkage-enabled dual-folding-axis folding wing mechanism needs to be designed, using a single power source to deploy both stages of the wing. (Invention Content)

[0003] Purpose of the invention

[0004] In view of the above-mentioned existing technology, the present invention provides a linkage dual-folding axis folding wing mechanism, which aims to achieve the deployment of two-stage wings using a single power source when the wing span is long and the folding envelope requirements are strict.

[0005] Technical solution

[0006] A linkage-enabled dual-folding-axis folding wing surface mechanism is provided.

[0007] It includes a support 1, an inner wing 2, an outer wing 3, an actuation device 4, a drive rod 5, a slider 6, and a connecting rod 7;

[0008] The upper edge of the inner wing 2 is rotatably connected to the lower edge of the outer wing, and the rotation center line is perpendicular to the wingspan direction;

[0009] A through groove is formed on the wing surface from the inner wing 2 to the outer wing, the groove extending in the wingspan direction, and the groove of the inner wing extends from the upper edge of the inner wing to the lower edge of the inner wing; a protrusion is formed on the lower edge of the inner wing 2, and a lug is provided on the protrusion.

[0010] Support 1 is a hollow cylinder with an opening at the upper end. The actuating device is rotatably disposed inside the hollow cylinder. The protrusion extends from the opening into the hollow cylinder, and the actuating device is rotatably connected to the lug. The protrusion is rotatably connected to the hollow cylinder.

[0011] A hinge point is provided at the upper end of the hollow cylinder. The lower end of the drive rod 5 is rotatably connected to the hinge point. The upper end of the drive rod 5 is hinged to the slider. The lower end of the connecting rod 7 is hinged to the slider. The upper end of the connecting rod 7 is rotatably connected to the outer wing. Parallel sliding grooves are formed in the grooves 8 of the inner and outer wings. The slider cooperates with the sliding grooves and is limited by the sliding grooves, so that the slider can only slide back and forth in the slide rail.

[0012] When the actuator 4 pulls the lug to swing into the opening, the protrusion can rotate relative to the support and drive the inner wing 2 to rotate and unfold. At the same time, the inner wing 2 drives the drive rod to rotate, causing the slider to slide towards the upper edge of the inner wing. The slider 2 pushes the connecting rod 7 to drive the outer wing 3 to rotate and unfold around the outer wing, so that the inner wing and the outer wing form an integral wing surface.

[0013] Furthermore, the groove is a dovetail groove or a T-shaped groove.

[0014] Furthermore, the groove forms a wedge-shaped opening towards the lower edge of the inner wing. This facilitates the movement of the drive rod, allowing for a wider design of the drive rod and preventing motion interference with the groove.

[0015] Furthermore, the rotation center between the protrusion and the hollow cylinder is not coplanar with the overall wing surface.

[0016] Furthermore, a convex-concave pivot joint is formed between the upper edge of the inner wing and the lower edge of the outer wing to achieve the rotational connection.

[0017] Furthermore, the actuating device 4 is an actuating cylinder.

[0018] Furthermore, the protrusion and the hollow cylinder are rotatably connected by an ear piece.

[0019] Furthermore, the bump also protrudes relative to the wing surface.

[0020] The support is fixedly installed inside the missile compartment and can be directly connected to a rotary servo or connected to a linear servo via a rocker arm and bearing. There is a pivot hole at the rear and front of the missile, and a lug hinge point at the front. The inner wing is the side wing closest to the missile. When the inner wing unfolds under the drive of the actuation device, the drive rod is pressed, driving the slider to slide along the groove towards the outer wing spanwise, which in turn drives the connecting rod to push the outer wing to rotate and unfold around the inner wing, thus achieving the coordinated unfolding of the double-folding axis folding wing surface. This mechanism can be designed with parameters such as the position of each lug and the size of the connecting rods so that after the inner and outer wings are unfolded, all connecting rods are embedded in the wing surface grooves and flush with the outer surface of the wing, achieving a wing surface without protrusions after unfolding. The folding and unfolding rotation angle of the inner and outer wings can also be adjusted through dimensional parameter design.

[0021] Technical effect

[0022] This invention achieves the coordinated deployment of dual-folding-axis folding wing surfaces using only a single power source, greatly reducing the spatial volume and cost of the folding wing surfaces, and there are no protrusions after the wing surfaces are deployed. Attached Figure Description

[0023] Figure 1 Schematic diagram of a double-folding-axis linkage folding wing surface mechanism;

[0024] Figure 2 Structural diagram of the outer wing, inner wing, and support;

[0025] Figure 3 Schematic diagram of the inner wing and support structure;

[0026] Figure 4 This is a structural schematic diagram of the support;

[0027] Figure 5 This is a structural schematic diagram of the support;

[0028] Figure 6 Schematic diagram of the inner wing structure;

[0029] Figure 7 Schematic diagram of the groove section of the inner wing;

[0030] Figure 8 Slider diagram;

[0031] Figure 9 Diagram of the unfolded state;

[0032] Figure 10 Schematic diagram of the folded state;

[0033] Among them, 1. support; 2. inner wing; 3. outer wing; 4. actuation device; 5. drive rod; 6. slider; 7. connecting rod; 8. groove; 9. protrusion; 10. lug; 11. convex-concave rotating shaft; 1-1. hinge point; 1-2. hinge point; 1-3. hinge point. Detailed Implementation

[0034] The disclosed examples will be described more fully with reference to the accompanying drawings, in which some (but not all) of the disclosed examples are shown. In fact, many different examples may be described, and these examples should not be construed as limited to those set forth herein. Rather, these examples are described so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0035] Referring to the attached drawings, a linkage-enabled double-folding axis folding wing surface mechanism is provided, including a support 1, an inner wing 2, an outer wing 3, an actuating device 4, a drive rod 5, a slider 6, and a connecting rod 7;

[0036] The upper edge of the inner wing 2 is rotatably connected to the lower edge of the outer wing, and the rotation center line is perpendicular to the wingspan direction;

[0037] A through groove is formed on the wing surface from the inner wing 2 to the outer wing, the groove extending in the wingspan direction, and the groove of the inner wing extends from the upper edge of the inner wing to the lower edge of the inner wing; a protrusion is formed on the lower edge of the inner wing 2, and a lug is provided on the protrusion.

[0038] Support 1 is a hollow cylinder with an opening at the upper end. The actuating device is rotatably disposed inside the hollow cylinder. The protrusion extends from the opening into the hollow cylinder, and the actuating device is rotatably connected to the lug. The protrusion is rotatably connected to the hollow cylinder.

[0039] The hollow cylinder has a hinge point 1-1 at its upper end. The lower end of the drive rod 5 is rotatably connected to the hinge point, the upper end of the drive rod 5 is hinged to the slider, the lower end of the connecting rod 7 is hinged to the slider, and the upper end of the connecting rod 7 is rotatably connected to the outer wing. Parallel sliding grooves are formed in the grooves of the inner and outer wings. The slider cooperates with the sliding grooves and is limited by the sliding grooves, so that the slider can only slide back and forth in the slide rail.

[0040] When the actuator 4 pulls the lug to swing into the opening, the protrusion can rotate relative to the support and drive the inner wing 2 to rotate and unfold. At the same time, the inner wing 2 drives the drive rod to rotate, causing the slider to slide towards the upper edge of the inner wing. The slider 2 pushes the connecting rod 7 to drive the outer wing 3 to rotate and unfold around the outer wing, so that the inner wing and the outer wing form an integral wing surface.

[0041] The groove forms a wedge-shaped opening towards the lower edge of the inner wing. This facilitates the movement of the drive rod and allows for a wider design of the drive rod, preventing movement interference with the groove.

[0042] The rotation center between the protrusion and the hollow cylinder is not coplanar with the overall wing surface.

[0043] The upper edge of the inner wing and the lower edge of the outer wing form a convex-concave pivot 11 to achieve the rotational connection.

[0044] The actuating device 4 is an actuating cylinder.

[0045] The protrusion and the hollow cylinder are rotatably connected by an ear piece.

[0046] The bump also protrudes relative to the wing surface.

[0047] The actuating device and the ear piece are rotatably connected through hinge points 1-3.

[0048] The protrusion and the hollow cylinder are rotatably connected through hinge point 1-2.

[0049] Descriptions of various advantageous arrangements have been shown for illustrative and descriptive purposes, but such descriptions are not intended to be exclusive or limited to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. Furthermore, different advantageous examples may describe different advantages compared to other advantageous examples. One or more examples have been selected and described in order to best illustrate the principles and practical application of the examples, and to enable those skilled in the art to understand that this disclosure contains various examples with various modifications suitable for the particular intended use.

Claims

1. A linkage-enabled double-folding-axis folding wing surface mechanism, characterized in that: It includes a support (1), an inner wing (2), an outer wing (3), an actuation device (4), a drive rod (5), a slider (6), and a connecting rod (7); The upper edge of the inner wing (2) is rotatably connected to the lower edge of the outer wing, and the rotation center line is perpendicular to the wingspan direction; A through groove is formed on the wing surface from the inner wing (2) to the outer wing. The groove extends in the direction of the wingspan. The groove of the inner wing extends from the upper edge of the inner wing to the lower edge of the inner wing. A protrusion is formed on the lower edge of the inner wing (2). A lug is provided on the protrusion. The support (1) is a hollow cylinder with an opening at the upper end. The actuating device is rotatably disposed in the hollow cylinder. The protrusion extends from the opening into the hollow cylinder, and the actuating device is rotatably connected to the lug. The protrusion is rotatably connected to the hollow cylinder. The hollow cylinder has a hinge point at its upper end. The lower end of the drive rod (5) is rotatably connected to the hinge point. The upper end of the drive rod (5) is hinged to the slider. The lower end of the connecting rod (7) is hinged to the slider. The upper end of the connecting rod is rotatably connected to the outer wing. Parallel grooves are formed in the grooves (8) of the inner and outer wings. The slider cooperates with the grooves and is limited by the grooves, so that the slider can only slide back and forth in the grooves. When the actuator pulls the lug to swing into the opening, the protrusion can rotate relative to the support, and drive the inner wing to rotate and unfold. At the same time, the inner wing drives the drive rod to rotate, causing the slider to slide towards the upper edge of the inner wing. The slider pushes the connecting rod to drive the outer wing to rotate and unfold, so that the inner wing and the outer wing form an integral wing surface.

2. The linkage-enabled double-folding-axis folding wing surface mechanism according to claim 1, characterized in that: The groove is a dovetail groove or a T-shaped groove.

3. The linkage-enabled double-folding-axis folding wing surface mechanism according to claim 1, characterized in that: The groove forms a wedge-shaped opening towards the lower edge of the inner wing.

4. The linkage-enabled double-folding-axis folding wing surface mechanism according to claim 1, characterized in that: The rotation center between the protrusion and the hollow cylinder is not coplanar with the overall wing surface.

5. The linkage-enabled double-folding-axis folding wing surface mechanism according to claim 1, characterized in that: The upper edge of the inner wing and the lower edge of the outer wing form a convex-concave pivot joint to achieve a rotatable connection.

6. The linkage-enabled double-folding-axis folding wing surface mechanism according to claim 1, characterized in that: The actuating device is an actuating cylinder.

7. The linkage-enabled double-folding-axis folding wing surface mechanism according to claim 1, characterized in that: The protrusion and the hollow cylinder are rotatably connected by an ear piece.

8. The linkage-enabled double-folding-axis folding wing surface mechanism according to claim 1, characterized in that: The bump also protrudes relative to the wing surface.

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