A wingtip pod-type aircraft drag-increasing device

Abstract

The present invention discloses a wingtip pod-type aircraft drag increasing device, comprising a front fixed part and a rear movable part, wherein the front fixed part is mainly composed of a skin, a root rib, a crossbeam, and an actuator, wherein the crossbeam and the actuator are arranged inside the skin, a suspension hole is provided on the root rib, and the root rib is fastened and installed on the wing tip of the wing by bolts passing through the suspension hole, and the rear movable part is composed of an upper speed brake and a lower speed brake, wherein the upper and lower speed brakes are provided with suspension joints and rocker arms, wherein the upper and lower speed brakes are hinged to the crossbeam through the suspension joint and are hinged to the actuator through the rocker arm at the same time, and the opening and closing states of the upper and lower speed brakes are controlled by the driving action of the actuator. The technical solution controls the opening and closing states of the upper and lower speed brakes by the driving action of the actuator, thereby achieving the effect of increasing the aircraft drag; as a separate functional component, the drag increasing device has greater independence, is easy to disassemble and assemble on the wing tip, and has good interchangeability and simple structure.

Description

Technical Field

[0001] The invention belongs to the technical field of aircraft structure design, and in particular relates to a wingtip pod-type aircraft arresting device. Background Art

[0002] In order to meet flight requirements and achieve various combat and technical indicators, aircraft are often designed with many drag devices. These drag devices form drag when opened and maintain the aircraft's aerodynamic shape when closed. Common ones include dorsal speed brakes and belly speed brakes. However, the wing tip generally has a low airfoil height, which makes it difficult to design a speed brake and the structural space is tight. Therefore, it is very difficult to add a drag device to the wing tip. Summary of the invention

[0003] In order to overcome the defects existing in the above-mentioned background technology, the present invention provides a wingtip pod-type aircraft drag increasing device to solve the problem that it is difficult to add a drag device to the wingtip of the wing.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] A wingtip pod-type aircraft drag increasing device, which consists of a front fixed part and a rear movable part. The front fixed part is mainly composed of a skin, a root rib, a crossbeam, and an actuator cylinder. The crossbeam and the actuator cylinder are arranged inside the skin. A suspension hole is opened on the root rib. The root rib is fastened to the wing tip of the wing by bolts passing through the suspension hole. The root rib bears and transmits the rear movable part and its own load and transmits these loads to the wing. The rear movable part consists of an upper speed brake and a lower speed brake. The upper speed brake and the lower speed brake are provided with suspension joints and rocker arms. The upper speed brake and the lower speed brake are hinged to the crossbeam through the suspension joint and are hinged to the actuator cylinder through the rocker arm at the same time. The opening and closing states of the upper speed brake and the lower speed brake are controlled by the driving action of the actuator cylinder.

[0006] Furthermore, the upper deceleration plate and the lower deceleration plate are opened outward or closed inward around the suspension joint under the driving action of the actuator.

[0007] Furthermore, the upper speed brake and the lower speed brake are symmetrically opened outward or symmetrically closed inward relative to the root rib around the suspension joint.

[0008] Furthermore, the cross-sectional shape of the drag increasing device matches the cross-sectional shape of the wing tip.

[0009] The beneficial effects of the present invention are as follows: the wingtip pod-type aircraft drag increasing device described in the technical solution controls the opening and closing states of the upper speed brake and the lower speed brake through the driving action of the actuator, thereby achieving the aircraft drag increasing effect; the drag increasing device can be used as a separate functional component on the aircraft, has greater independence, is easy to disassemble and assemble on the wingtip of the aircraft, and has good interchangeability and simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the present invention;

[0011] Figure 2 It is a partial cross-sectional structural schematic diagram of the front section fixing part of the present invention;

[0012] Figure 3 It is a structural schematic diagram of the speed brake of the rear movable part of the present invention when it is opened;

[0013] Figure 4 The figure is a schematic diagram of the installation position of the present invention on the wing.

[0014] As shown in the accompanying drawings: 1-front fixed part, 2-rear movable part, 3-suspension hole, 4-rib, 5-cross beam, 6-actuator, 7-upper speed brake, 8-lower speed brake, 9-skin, 10-suspension joint, 11-rocker arm. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] A wingtip pod-type aircraft drag increasing device, which consists of a front fixed part 1 and a rear movable part 2. The front fixed part 1 is mainly composed of a skin 9, a root rib 4, a crossbeam 5, and an actuator 6. The crossbeam 5 and the actuator 6 are arranged inside the skin 9. A suspension hole 3 is opened on the root rib 4. The root rib 4 is fastened and installed on the wing tip of the wing by bolts passing through the suspension hole 3. The root rib 4 bears and transmits the rear movable part 2 and its own load and transmits these loads to the wing. The rear movable part 2 is composed of an upper speed brake 7 and a lower speed brake 8. The upper speed brake 7 and the lower speed brake 8 are provided with a suspension joint 10 and a rocker arm 11. The upper speed brake 7 and the lower speed brake 8 are hinged on the crossbeam 5 through the suspension joint 10 and are hinged with the actuator 6 through the rocker arm 11 at the same time. The opening and closing states of the upper speed brake 7 and the lower speed brake 8 are controlled by the driving action of the actuator 6.

[0017] Furthermore, the upper deceleration plate 7 and the lower deceleration plate 8 are opened outward or closed inward around the suspension joint 10 under the driving action of the actuator 6 .

[0018] Furthermore, the upper speed brake 7 and the lower speed brake 8 are symmetrically opened outward or symmetrically closed inward relative to the root rib 4 around the suspension joint 10 .

[0019] Furthermore, the cross-sectional shape of the drag increasing device matches the cross-sectional shape of the wing tip.

[0020] When the aircraft is flying normally, the drag increasing device drives the upper speed brake 7 and the lower speed brake 8 to be in a closed state through the driving of the actuator 6. At this time, their outer surfaces form a complete aerodynamic shape and a complete lifting surface to mainly provide lift.

[0021] When the aircraft needs to increase resistance, the drag increasing device drives the actuator 6 to open the upper speed brake 7 and the lower speed brake 8. At this time, their outer surfaces form a resistance surface to increase the flight resistance, thereby achieving a drag increasing effect.

[0022] The wingtip pod-type aircraft drag increasing device described in the technical solution controls the opening and closing states of the upper speed reducing plate 7 and the lower speed reducing plate 8 by the driving action of the actuator 6, thereby achieving the aircraft drag increasing effect; the drag increasing device can be used as a separate functional component on the aircraft, has greater independence, is easy to disassemble and assemble on the wingtip of the aircraft, and has good interchangeability and simple structure.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wingtip pod-type aircraft drag increasing device, characterized in that: The drag increasing device is composed of a front fixed part (1) and a rear movable part (2). The front fixed part (1) is mainly composed of a skin (9), a root rib (4), a crossbeam (5), and an actuator (6). The crossbeam (5) and the actuator (6) are arranged inside the skin (9). A suspension hole (3) is provided on the root rib (4). The root rib (4) is fastened to the wing tip of the wing by bolts passing through the suspension hole (3). The rear movable part (2) is composed of an upper speed brake (7) and a lower speed brake (8). The upper speed brake (7) and the lower speed brake (8) are provided with a suspension joint (10) and a rocker arm (11). The upper speed brake (7) and the lower speed brake (8) are hinged to the crossbeam (5) through the suspension joint (10) and are hinged to the actuator (6) through the rocker arm (11). The opening and closing states of the upper speed brake (7) and the lower speed brake (8) are controlled by the driving action of the actuator (6). The upper deceleration plate (7) and the lower deceleration plate (8) are opened outward or closed inward around the suspension joint (10) under the driving action of the actuator (6); The upper speed brake (7) and the lower speed brake (8) are symmetrically opened outwards or symmetrically closed inwards relative to the root rib (4) around the suspension joint (10); The cross-sectional shape of the drag increasing device matches the cross-sectional shape of the wing tip.

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