CN210618455U - Novel component of composite helicopter short wing and undercarriage - Google Patents
Novel component of composite helicopter short wing and undercarriage Download PDFInfo
- Publication number
- CN210618455U CN210618455U CN201921623615.4U CN201921623615U CN210618455U CN 210618455 U CN210618455 U CN 210618455U CN 201921623615 U CN201921623615 U CN 201921623615U CN 210618455 U CN210618455 U CN 210618455U
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- wing
- helicopter
- transmission mechanism
- ribs
- undercarriage
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- 239000002131 composite material Substances 0.000 title claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a novel component of a composite helicopter short wing and an undercarriage, which comprises a transmission mechanism hinged on a helicopter body and a wing surface structure hinged on the transmission mechanism; the transmission mechanism comprises a hydraulic actuator cylinder and a bearing connected between the hydraulic actuator cylinder and the helicopter body; the wing surface structure comprises a plurality of wing ribs arranged in parallel and a skin laid on the wing ribs, two sides of each wing rib are respectively connected with a roller bearing connected with a helicopter body, and the end part of each hydraulic actuating cylinder is provided with a connecting piece which is connected with the wing ribs; the transmission mechanism is used for completing the conversion between the landing gear and the short wing, absorbing the impact energy of the helicopter during landing, improving the use performance, avoiding the negative effect caused by the fact that the speed of the horizontal airflow of the short wing of the helicopter is insufficient, and effectively improving the stability.
Description
Technical Field
The utility model relates to a helicopter technical field, concretely relates to novel part of compound helicopter stub wing and undercarriage.
Background
The landing gear of a helicopter is a component that has been invented with helicopters, mainly in the form of skid and wheel type landing gears. The integrated skid landing gear has the advantages of being simple in structure, good in stability, not prone to damage and the like, and is widely applied to helicopters. The history is also very long, and the technical conditions are very mature.
The short wing of the helicopter is generally applied to high-speed helicopters and some military helicopters and is evolved from a common fixed wing airplane. The lifting device is mainly used for carrying articles and can also improve partial lifting force under the condition of horizontal speed. This technology is also well established.
The undercarriage of the existing helicopter is of a fixed structure, can generate large friction during high-speed flight, and occupies a large space when being retracted inside the helicopter. And the short wings block the downwash airflow generated by the helicopter when the horizontal airflow speed of the helicopter such as take-off and landing is not enough, so that the negative effect is brought, and the flight performance is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel part of compound helicopter stub wing and undercarriage to solve the problem that current helicopter stub wing and undercarriage performance are low.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a novel component for compounding a short wing and an undercarriage of a helicopter comprises a transmission mechanism hinged on a helicopter body and an airfoil surface structure hinged on the transmission mechanism;
the transmission mechanism comprises a hydraulic actuator cylinder and a bearing connected between the hydraulic actuator cylinder and the helicopter body;
the wing surface structure comprises a plurality of wing ribs arranged in parallel and skins paved on the wing ribs, roller bearings connected with a helicopter body are connected to two sides of each wing rib respectively, and a connecting piece is arranged at the end of each hydraulic actuating cylinder and connected with the corresponding wing rib.
Furthermore, wear-resistant rubber layers are wrapped on the wing ribs on the outer sides of the wing surface structures.
Further, the wing ribs are of arc-shaped structures.
Further, the adjacent ribs are arranged at intervals, and the spacing distances among the ribs are consistent.
Further, the skin is fixed to the rib by rivets.
The utility model discloses following beneficial effect has: the utility model provides a novel part of compound helicopter stub wing and undercarriage, drive mechanism adopts hydraulic structure, through the conversion between this hydraulic structure both accomplished undercarriage and the stub wing, absorbed the impact energy when the helicopter descends again, improve performance, and avoided the negative effects that the helicopter stub wing brought when horizontal air velocity is not enough through this part, when the helicopter reachd the displacement velocity, this part can reach with paddle horizontally state, the effectual stability that has increased.
Drawings
FIG. 1 is a schematic view of a helicopter landing gear of the present invention;
FIG. 2 is a schematic view of a short wing state of the helicopter of the present invention;
FIG. 3 is a schematic view of a middle airfoil surface structure of the present invention;
the reference numerals shown in fig. 1 to 3 are respectively expressed as: 1-helicopter fuselage, 2-transmission mechanism, 3-airfoil structure, 20-hydraulic actuator cylinder, 21-bearing, 30-wing rib, 31-skin, 32-connecting piece and 33-wear-resistant rubber layer.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 3, a novel component of a composite helicopter pony wing and landing gear comprises a transmission mechanism 2 hinged on a helicopter body 1 and an airfoil surface structure 3 hinged on the transmission mechanism 2;
the transmission 2 comprises a hydraulic ram 20 and a bearing 21 connected between the hydraulic ram 20 and the helicopter body 1. The hydraulic actuator cylinder 20 is a power mechanism of a component, and adopts a hydraulic mode, so that the switching between the undercarriage and the short wing can be realized, and the damping effect can be realized when the helicopter lands, so that the undercarriage is prevented from being in rigid contact with the ground.
The wing surface structure 3 comprises a plurality of wing ribs 30 arranged in parallel and a skin 31 laid on the wing ribs 30, roller bearings 21 connected with the helicopter body 1 are respectively connected with two sides of the wing ribs 30, a connecting piece 32 is arranged at the end part of the hydraulic actuating cylinder 20, and the connecting piece 32 is connected with the wing ribs 30. The ribs 30 are arcuate in configuration. Adjacent wing ribs 30 are arranged at intervals, and the spacing distances among the plurality of wing ribs 30 are consistent, so that the stable balance of the airfoil structure 3 can be improved, and the self weight of the airfoil structure is reduced. Skin 31 is fixed to rib 30 by rivets, which improves the reliability of the connection between skin 31 and rib 30.
In order to improve the wear resistance of the component, the utility model discloses in, it has wear-resisting rubber layer 33 to be located the parcel on the outside rib 30 of airfoil structure 3. The wear-resistant rubber layer 33 protects the components.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. A novel component of a composite helicopter short wing and an undercarriage is characterized by comprising a transmission mechanism (2) hinged on a helicopter body (1) and an airfoil surface structure (3) hinged on the transmission mechanism (2);
the transmission mechanism (2) comprises a hydraulic actuating cylinder (20) and a bearing (21) connected between the hydraulic actuating cylinder (20) and the helicopter body (1);
the wing surface structure (3) comprises a plurality of wing ribs (30) arranged in parallel and a skin (31) laid on the wing ribs (30), roller bearings (21) connected with a helicopter body (1) are connected to two sides of each wing rib (30) respectively, a connecting piece (32) is arranged at the end part of each hydraulic actuating cylinder (20), and the connecting pieces (32) are connected with the wing ribs (30).
2. A new component of a composite helicopter pony wing and landing gear according to claim 1, characterized in that the outer rib (30) of the airfoil structure (3) is coated with a wear resistant rubber layer (33).
3. The novel component of a composite helicopter winglet and landing gear according to claim 1, characterized in that the rib (30) is of arcuate configuration.
4. A novel component of a composite helicopter short wing and landing gear according to any of claims 1 to 3, characterized by the fact that adjacent ribs (30) are spaced apart and the spacing distance between a plurality of ribs (30) is uniform.
5. The novel component of a composite helicopter winglet and landing gear according to claim 4, characterized in that the skin (31) is fixed to the rib (30) by rivets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921623615.4U CN210618455U (en) | 2019-09-26 | 2019-09-26 | Novel component of composite helicopter short wing and undercarriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921623615.4U CN210618455U (en) | 2019-09-26 | 2019-09-26 | Novel component of composite helicopter short wing and undercarriage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210618455U true CN210618455U (en) | 2020-05-26 |
Family
ID=70757548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921623615.4U Expired - Fee Related CN210618455U (en) | 2019-09-26 | 2019-09-26 | Novel component of composite helicopter short wing and undercarriage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210618455U (en) |
-
2019
- 2019-09-26 CN CN201921623615.4U patent/CN210618455U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200526 |