CN214690134U

CN214690134U - Telescopic folding wing

Info

Publication number: CN214690134U
Application number: CN202120823503.4U
Authority: CN
Inventors: 曾揚洋
Original assignee: Chongqing Jiaotong University
Current assignee: Chongqing Jiaotong University
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-11-12
Anticipated expiration: 2031-04-21

Abstract

The utility model discloses a telescopic folding wing, which comprises a wing receiving section, a wing telescopic section and a driving device, wherein the wing receiving section is fixedly connected to a fuselage, the wing receiving section is provided with a receiving cavity, a wing telescopic end is telescopically arranged in the receiving cavity of the wing receiving section, and the driving device is used for driving the wing telescopic end to extend out of the receiving cavity to form an unfolded state or retract into the receiving cavity to form a folded state; the wing of the utility model adopts a telescopic folding mode, the structure realizes the folding of the wing under the premise of keeping the rigidity appearance of the wing to the maximum extent, the occupied space is less after the folding, the shape rigidity is less damaged, the stability and the reliability of the wing are improved, and in addition, each part of the folding wing of the structure has lower requirements on assembly and manufacturing precision; the space inside the wing is fully utilized, and the space utilization rate is improved.

Description

Telescopic folding wing

Technical Field

The utility model relates to an aircraft technical field, in particular to telescopic folding wing.

Background

At present, a travel mode of urban air traffic is provided in the traffic field. When people go out in a city in the trip mode, small navigation vehicles need to be developed, and high requirements are provided for the miniaturization of airplanes, particularly for the occupied area during taking off and landing. This type of aircraft therefore places demands on the foldability of the wing.

The folding mode of the existing wings is usually a gear-driven folding mode and a hinge folding mode, wherein the gear-driven folding mode usually realizes the relative rotating folding of two wings through a pair of meshed gears, and the structure needs to be set with a corresponding locking structure; for the hinge folding mode, the wings are folded up and down, the area of the wings is required to be large so as to arrange the hinges, the wings of the structure can obtain a good folding effect after being divided into a large number of blocks, and meanwhile, the space inside the wings almost completely loses value; after the number of the blocks is reduced, a large number of blocks are always stacked in a certain direction, and the purpose of folding and saving space cannot be achieved.

Therefore, in order to solve the above problems, a telescopic folding wing is needed, which simplifies the structure of the folding wing, reduces the occupied area of the wing, and improves the stability and reliability of the wing.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a telescopic folding wing, which simplifies the structure of the folding wing, reduces the occupied area of the wing, and improves the stability and reliability of the wing.

The utility model discloses a telescopic folding wing, accomodate section, the flexible section of wing and drive arrangement including the wing, the section is accomodate to the wing is used for fixed connection on the fuselage, the section is accomodate to the wing has accomodates the chamber, the flexible end of wing is scalable to be installed in the chamber of accomodating of the section is accomodate to the wing, drive arrangement is used for driving the flexible end of wing to stretch out to accomodate the chamber and forms expansion state or withdrawal and accomodate the chamber and form fold condition.

Furthermore, the driving device comprises a main hydraulic cylinder, the main hydraulic cylinder is installed in a containing cavity of the wing containing section, and the output end of the main hydraulic cylinder is connected with the wing telescopic section.

Furthermore, the driving device further comprises an auxiliary hydraulic cylinder, the auxiliary hydraulic cylinder is installed in a containing cavity of the wing containing section, and the output end of the auxiliary hydraulic cylinder is connected with the wing telescopic section.

Further, the main hydraulic cylinder and the auxiliary hydraulic cylinder are arranged along the length direction of the wing receiving section, the main hydraulic cylinder is approximately arranged at the center of the wing receiving section, and the auxiliary hydraulic cylinder is approximately arranged at the center of gravity of the wing receiving section.

Furthermore, at least one rear fixing wing plate is fixedly connected to the containing cavity of the wing containing section, the rear fixing wing plate extends along the width direction of the wing containing section, and the main hydraulic cylinder and the auxiliary hydraulic cylinder are fixedly connected to the rear fixing wing plate.

Further, the flexible section of wing has the installation cavity, the installation cavity forms the through structure with accomodating the relative formation of chamber opening, main pneumatic cylinder and auxiliary hydraulic cylinder's output extends the installation intracavity and is connected with the flexible end inner chamber of wing.

Further, install direction pterygoid lamina and preceding fixed pterygoid lamina in the installation cavity, main hydraulic cylinder and auxiliary hydraulic cylinder's output normal running fit installs on preceding fixed pterygoid lamina, set up the direction mounting hole that supplies main hydraulic cylinder and auxiliary hydraulic cylinder to pass respectively on the direction pterygoid lamina.

Furthermore, threading holes are formed in the guide wing plate and the rear fixing wing plate.

The utility model has the advantages that:

the wing of the utility model adopts a telescopic folding mode, the structure realizes the folding of the wing under the premise of keeping the rigidity appearance of the wing to the maximum extent, the occupied space after folding is less, the shape rigidity damage is less, and the stability and the reliability of the wing are improved; the wing with the structure has the advantages of simple structure, convenient maintenance, less parts and components, and capability of avoiding the arrangement of a large number of fixing mechanisms; in addition, each part of the folding wing with the structure has lower requirements on assembly and manufacturing precision; when the wings are unfolded, the internal space of the wings can be reserved, and the space can be used for application scenes such as weight balancing of two sides and the like after the wings in the air are unfolded, so that the internal space of the wings is fully utilized, and the space utilization rate is improved.

Drawings

The invention is further described with reference to the following figures and examples.

FIG. 1 is a schematic view of a wing deployment configuration;

FIG. 2 is a schematic view of a wing fold configuration;

FIG. 3 is a schematic view of the internal structure of the wing;

FIG. 4 is a schematic view of a partial structure of an airfoil;

Detailed Description

As shown in the figure, the telescopic folding wing is provided in this embodiment, accomodate section 1, the flexible section 2 of wing and drive arrangement including the wing, the section 1 is accomodate to the wing is used for fixed connection on fuselage 9, the section is accomodate to the wing has the housing chamber, the flexible end of wing is scalable to be installed in the housing chamber of section is accomodate to the wing, drive arrangement is used for driving the flexible end of wing to stretch out the housing chamber and forms the state of expanding or retract the housing chamber and form fold condition. The driving device can adopt a hydraulic cylinder, a linear motor or other known structures, and the details are not repeated; with reference to fig. 1 to 3, in a folded state, the wing extension section is driven to retract into the wing storage section, the structure realizes folding of the wing on the premise of keeping the rigidity and the shape of the wing to the maximum extent, so that flexible materials can be avoided, the occupied space after folding is small, the shape rigidity is damaged less, and the stability and the reliability of the wing are improved; when the wings are unfolded, the internal space of the wings can be reserved, and the space can be used for application scenes such as weight balancing of two sides and the like after the wings in the air are unfolded, so that the internal space of the wings is fully utilized, and the space utilization rate is improved.

In this embodiment, the driving device includes a master cylinder 3, the master cylinder is installed in a receiving cavity of the wing receiving section, and an output end of the master cylinder is connected to the wing extending section. The telescopic end of the wing is driven to act through the hydraulic cylinder, so that the state of the telescopic section of the wing can be stably maintained.

In this embodiment, the driving device further includes an auxiliary hydraulic cylinder 4, the auxiliary hydraulic cylinder 4 is installed in a containing cavity of the wing containing section, and an output end of the auxiliary hydraulic cylinder is connected with the wing telescopic section. Correspondingly, the hydraulic device is further arranged to match the actions of the main hydraulic cylinder and the auxiliary hydraulic cylinder, each hydraulic device is arranged inside the machine body and comprises a hydraulic oil tank 10, a hydraulic oil filter 11, a hydraulic system driving motor 12, a hydraulic pump 13, a one-way valve 14, an electric control reversing valve I15 and an electric control reversing valve II 16, the hydraulic system driving motor 12 drives the hydraulic pump 13 to rotate to work, hydraulic oil enters the hydraulic pump 13 after passing through the hydraulic oil filter 11 from the hydraulic oil tank 10, and the hydraulic pump conveys oil through the one-way valve 14 and then divides the oil into two branches. One branch flows to the auxiliary hydraulic cylinder from the electric control reversing valve I15 and then returns to the hydraulic oil tank 10 through the electric control reversing valve I15; the other branch flows to a main hydraulic cylinder from the electric control reversing valve II 16 and then returns to a hydraulic oil tank through the electric control reversing valve II 16. Different flow directions of hydraulic oil are realized through the directions of the electric control reversing valve I15 and the electric control reversing valve II 16 to drive the hydraulic cylinder to extend or contract, and further the wing extension section is driven to move linearly relative to the wing storage section, so that the wing is folded or unfolded; the main hydraulic cylinder and the auxiliary hydraulic cylinder are arranged in the width direction of the wing, stable and accurate driving can be achieved for the telescopic end of the wing through the main hydraulic cylinder and the auxiliary hydraulic cylinder, the wing contraction section can be prevented from being clamped in the containing cavity in a biasing mode, and the main hydraulic cylinder and the auxiliary hydraulic cylinder are used for correcting deformation of the telescopic section of the wing, which is bent backwards under the resistance of air flow, of the telescopic section of the wing.

In this embodiment, the main hydraulic cylinder 3 and the auxiliary hydraulic cylinder 4 are arranged along the length direction of the wing storage section 1, the main hydraulic cylinder is approximately arranged at the center of gravity of the wing storage section 1, and the auxiliary hydraulic cylinder 4 is approximately arranged at the center of gravity of the wing storage section 1. The general arrangement means that the device is arranged at a corresponding position and can be slightly adjusted according to an actual arrangement structure; when the aircraft flies, the front airflow can make the wings have the tendency of bending backwards, the telescopic section of the wings is subjected to the tendency of bending backwards relative to the telescopic section of the wings, the telescopic end of the wings is easily supported on one side of a containing cavity of the telescopic section of the wings, when the situation occurs, the force of outward stretching of the auxiliary hydraulic cylinder is increased, the telescopic section of the wings can generate a reset moment relative to the rigid position of the wings, the tendency of bending backwards of the telescopic section of the wings can be broken, the design state of the fit clearance between the telescopic section of the wings and the telescopic section of the wings is restored, and the normal folding of the wings is facilitated.

In this embodiment, at least one rear fixing wing plate 5 is fixedly connected to the receiving cavity of the wing receiving section 1, the rear fixing wing plate extends along the width direction of the wing receiving section, and the cylinders of the main hydraulic cylinder 3 and the auxiliary hydraulic cylinder 4 are fixedly connected to the rear fixing wing plate 5. The length direction of the wing is perpendicular to the fuselage, and the width direction of the wing is consistent with the length direction of the fuselage; as shown in fig. 4, the rear fixing wing plate is provided with a mounting hole for the column hydraulic cylinder and the auxiliary hydraulic cylinder to pass through, and the rear fixing wing plate is used for positioning the hydraulic cylinder and supporting the hydraulic cylinder.

In this embodiment, the flexible section 2 of wing has the installation cavity, the installation cavity forms the through structure with accomodating the relative formation of chamber opening, the output of main cylinder 3 and auxiliary hydraulic cylinder 4 extends to be connected with the flexible end inner chamber of wing in the installation cavity. As shown in fig. 1, the mounting cavity is communicated to the inner end of the wing expansion section, the storage cavity is communicated to both ends of the wing storage section, wherein the wing expansion section extends into the wing storage section from the outer port of the storage cavity, the inner port of the mounting cavity is opposite to the outer port of the accommodating cavity, so that the two cavities form a communicated state, and the oil path of the hydraulic system extends into the storage cavity through the inner port of the storage cavity and is connected with the hydraulic cylinder.

In this embodiment, install direction pterygoid lamina 6 and preceding fixed pterygoid lamina 7 in the installation cavity, the output normal running fit of main hydraulic cylinder 3 and auxiliary hydraulic cylinder 4 is installed on preceding fixed pterygoid lamina, set up the direction mounting hole that supplies main hydraulic cylinder and auxiliary hydraulic cylinder to pass respectively on the direction pterygoid lamina. As shown in fig. 4, the front fixed wing plate is located outside the guide wing plate, the output ends of the main hydraulic cylinder and the auxiliary hydraulic cylinder are in running fit with the front fixed wing plate through the lug 17, the main hydraulic cylinder and the auxiliary hydraulic cylinder penetrate through the guide mounting hole on the guide wing plate and are used for guiding the extension of the corresponding hydraulic cylinder and supporting the hydraulic cylinder, and further the wing extension section is supported by the hydraulic cylinder, so that the wing extension section can be effectively prevented from being biased backwards under the action of airflow, and in addition, each wing plate also serves as a reinforcing part to improve the structural strength and rigidity of the whole wing.

In this embodiment, the guide wing plate and the rear fixing wing plate are provided with threading holes 8. The threading hole is positioned between the main hydraulic cylinder and the auxiliary hydraulic cylinder, the threading hole is used for an oil circuit to pass through, and the threading hole is of a kidney-shaped hole structure and is also beneficial to the light weight design of the wing; the corresponding fuselage is provided with an opening communicated with the containing cavity, and the oil route from the fuselage to the wing is favorably arranged through the opening;

finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A telescopic folding wing which is characterized in that: accomodate section, the flexible section of wing and drive arrangement including the wing, the section is accomodate to the wing is used for fixed connection on the fuselage, the section is accomodate to the wing has the chamber of accomodating, the flexible end of wing is scalable to be installed in the chamber of accomodating of section is accomodate to the wing, drive arrangement is used for driving the flexible end of wing to stretch out the chamber and form the state of expanding or retract the chamber and form fold condition.

2. The telescopic folding wing according to claim 1, characterized in that: the driving device comprises a main hydraulic cylinder, the main hydraulic cylinder is installed in a containing cavity of the wing containing section, and the output end of the main hydraulic cylinder is connected with the wing telescopic section.

3. The telescopic folding wing according to claim 2, characterized in that: the driving device further comprises an auxiliary hydraulic cylinder, the auxiliary hydraulic cylinder is installed in a containing cavity of the wing containing section, and the output end of the auxiliary hydraulic cylinder is connected with the wing telescopic section.

4. The telescopic folding wing according to claim 3, characterized in that: the main hydraulic cylinder and the auxiliary hydraulic cylinder are arranged along the length direction of the wing receiving section, the main hydraulic cylinder is approximately arranged at the center of the wing receiving section, and the auxiliary hydraulic cylinder is approximately arranged at the center of gravity of the wing receiving section.

5. The telescopic folding wing according to claim 3, characterized in that: at least one rear fixed wing plate is fixedly connected to a containing cavity of the wing containing section, and the main hydraulic cylinder and the auxiliary hydraulic cylinder are fixedly connected to the rear fixed wing plate.

6. The telescopic folding wing according to claim 5, characterized in that: the flexible section of wing has the installation cavity, the installation cavity forms the through structure with accomodating the chamber opening relatively, the output of main cylinder and auxiliary hydraulic cylinder extends the installation intracavity and is connected with the flexible end inner chamber of wing.

7. The telescopic folding wing according to claim 6, characterized in that: install direction pterygoid lamina and preceding fixed pterygoid lamina in the installation cavity, main hydraulic cylinder and auxiliary hydraulic cylinder's output normal running fit installs in the front on the fixed pterygoid lamina, set up the direction mounting hole that supplies main hydraulic cylinder and auxiliary hydraulic cylinder to pass respectively on the direction pterygoid lamina.

8. The telescopic folding wing according to claim 7, characterized in that: threading holes are formed in the guide wing plate and the rear fixing wing plate.