CN216003051U - Telescopic folding device and wing - Google Patents

Abstract

The utility model relates to a telescopic folding device and a wing, wherein the device comprises a telescopic mechanism and a folding mechanism, wherein the telescopic mechanism comprises a movable end rib, at least four guide rail assemblies, at least two first drivers and at least two second drivers, the first guide rail assembly and the second guide rail assembly are arranged at one end of the movable end rib, the third guide rail assembly and the fourth guide rail assembly are arranged at the other end of the movable end rib, and the first driver is connected with the first guide rail assembly and the second guide rail assembly; the second driver is connected with the third and the fourth guide rail assemblies; folding mechanism includes at least three third driver and guide way, and the activity end rib is all connected to the one end of at least three third driver, and the other end all sets up in the guide way. The utility model is designed aiming at the structure of the folding wing, realizes the folding function of the wing tip structure, simultaneously ensures that no gap is formed between the upper surface and the lower surface of the wing before folding, avoids the occurrence of a large gap and designs a complex sealing structure, ensures the integrity of the upper wing surface and the lower wing surface, and is beneficial to ensuring the aerodynamic performance of the airplane.

Description

Telescopic folding device and wing

Technical Field

The utility model belongs to the technical field of aviation structures and mechanisms, and particularly relates to a telescopic folding device and a wing.

Background

The existing airplane has longer wings, so that the wings need to be folded upwards slightly when the airplane decelerates and slides on a runway, a hinge folding mechanism is adopted, and the contact sides of the movable wings and the wings are provided with inclined planes, but a small gap still exists between the movable wings and the wings; the single-side wing of the aerocar is provided with two folds, one fold upwards and the other fold downwards, and the gap of the folded position when being unfolded is filled by a sealing structure, but the weight of the aerocar is increased; the wings of the battle type airplane also have the problem of large gaps when being folded and unfolded, and the technical problem of increasing flight resistance exists in the gaps when the airplane or the flying car flies in the air.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and aims to provide a telescopic folding device and a wing, so that the integrity of the upper wing surface and the lower wing surface of the wing is ensured, the phenomenon that the lifting force of the wing is influenced due to the occurrence of gaps on the folding surface of the wing is avoided, and the wingspan limitation requirements of some airports are met to solve the problems in the prior art.

The above technical object of the present invention will be achieved by the following technical solutions.

A telescopic folding device, comprising a telescopic mechanism and a folding mechanism, wherein,

the telescopic mechanism comprises a movable end rib, at least four guide rail components, at least two first drivers and at least two second drivers, the first and second guide rail components are arranged at one end of the movable end rib, the third and fourth guide rail components are arranged at the other end of the movable end rib,

the first driver connects the first and second rail assemblies; the second driver is connected with the third and fourth guide rail assemblies;

the folding mechanism comprises at least three third drivers and a guide groove, one ends of the at least three third drivers are connected with the movable end rib, and the other ends of the at least three third drivers are arranged in the guide groove.

There is further provided in accordance with the above-described aspect and any one of the possible implementations an implementation in which the first through fourth rail assemblies each include a first, second, third, or fourth rail, a respective rail top surface, and a slider disposed on each of the rails.

The above-described aspects and any possible implementations further provide an implementation in which the first, second, third, or fourth rail is single "V" or double "V" shaped in cross-section.

The above aspect and any possible implementation further provide an implementation in which the first driver connects the first slider on the first rail and the second slider on the second rail, and the second driver connects the third slider on the third rail and the fourth slider on the fourth rail.

The above aspect and any possible implementation further provide an implementation in which the movable end rib includes at least three corner joints, and the at least three corner joints are respectively connected to the at least three third drivers.

The utility model also provides a telescopic folding wing which comprises a telescopic folding device, a fixed wing and a movable wing tip, wherein the telescopic mechanism is arranged inside the wing box of the fixed wing, and the folding mechanism is arranged between the fixed wing and the movable wing tip.

There is further provided in accordance with the above-described aspect and any possible implementation, an implementation in which the fixed wing includes a front spar and a rear spar, and the movable end rib is disposed between the front spar and the rear spar.

The above aspect and any possible implementation further provide an implementation in which one ends of the first and second rails of the first and second rail assemblies are disposed on the front beam, and the other ends of the first and second rails of the first and second rail assemblies are disposed on the movable end rib; one ends of a third guide rail and a fourth guide rail of the third guide rail assembly and the fourth guide rail assembly are arranged on the back beam, and the other ends of the third guide rail and the fourth guide rail of the third guide rail assembly and the fourth guide rail assembly are arranged on the movable end rib.

The above aspect and any possible implementation manner further provide an implementation manner, in which the movable wing tip includes an inner side end rib structure, a tab is disposed at a lower portion of the inner side end rib structure, and a rectangular round slot is disposed on the tab.

The above aspect and any possible implementation further provide an implementation in which the movable end rib is provided with at least two fixed joints, and the at least two fixed joints are connected with the movable wing tip.

The above aspect and any possible implementation further provide an implementation in which the first, second, and third drivers are all linear drivers.

The utility model has the beneficial technical effects

The telescopic folding device comprises a telescopic mechanism and a folding mechanism, wherein the telescopic mechanism comprises a movable end rib, at least four guide rail assemblies, at least two first drivers and at least two second drivers, the first guide rail assembly and the second guide rail assembly are arranged at one end of the movable end rib, the third guide rail assembly and the fourth guide rail assembly are arranged at the other end of the movable end rib, and the first driver is connected with the first guide rail assembly and the second guide rail assembly; the second driver is connected with the third and fourth guide rail assemblies; the folding mechanism comprises at least three third drivers and a guide groove, one ends of the at least three third drivers are connected with the movable end rib, and the other ends of the at least three third drivers are arranged in the guide groove. The utility model is designed aiming at the structure of the folding wing, realizes the folding function of the wing tip structure, simultaneously ensures that no gap is formed between the upper surface and the lower surface of the wing before folding, avoids the occurrence of a large gap and designs a complex sealing structure, ensures the integrity of the upper wing surface and the lower wing surface, and is beneficial to ensuring the aerodynamic performance of the airplane.

Drawings

Embodiments of the utility model are described in detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a schematic view of an embodiment of the present invention in an airfoil folded condition;

FIG. 2 is a schematic view of an alternative state of wing folding in an embodiment of the utility model;

FIG. 3 is a schematic illustration of a fixed wing configuration in an embodiment of the utility model;

FIG. 4 is a schematic view of a fixed wing in a telescoping configuration in an embodiment of the utility model;

FIG. 5 is a schematic view of a folded configuration of an embodiment of the present invention in an airfoil folded condition;

fig. 6 is a schematic view of a folded structure of the wing in an unfolded state according to an embodiment of the present invention.

The figures are labeled as follows: 1. fixing the wing; 2. a movable wing tip; 3. a first rail assembly; 4. a first linear driver I; 5. a second rail assembly; 6. a third rail assembly; 7. a second linear actuator; 8. a fourth rail assembly; 9. a third linear actuator; 10. a beam front joint; 101. a lower wall plate; 102. a rear beam; 103. a front beam; 104. a movable end rib; 105. an upper wall plate; 201. a joint installation space; 202. a guide groove; 30. a first guide rail; 31. a first slider; 301. a first rail top surface; 50. a second guide rail; 51. a second slider; 501. a second rail top surface; 60. a third guide rail; 61. a third slider; 601. a third rail top surface; 80. a fourth guide rail; 81. a fourth slider; 801. a fourth rail top surface; 1041. a first corner joint; 1042. a first fixed joint; 1043. a second corner joint; 1044. a second fixed joint; 1045. and a third angle joint.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description is made with reference to the accompanying drawings and specific examples, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1 to 2, the retractable folding wing of the present invention includes a fixed wing 1 and a movable wing tip 2, wherein the fixed wing 1 and the movable wing 2 are connected by a retractable folding device, and the movable wing tip 2 is unfolded or folded relative to the fixed wing 1 by the retractable folding device.

As shown in fig. 3 to 4, the fixed wing of the present invention includes a lower wall plate 101, an upper wall plate 105, a rear spar 102, and a front spar 103, and the lower wall plate 101, the upper wall plate 105, the rear spar 102, and the front spar 103 are connected by fasteners.

Scalable folding device includes telescopic machanism and folding mechanism, wherein telescopic machanism set up in inside the wing box of fixed wing, telescopic machanism includes activity end rib 4, four at least guide rail set spares: the guide rail assembly comprises a first guide rail assembly 3, a second guide rail assembly 5, a third guide rail assembly 6, a fourth guide rail assembly 8, at least two first drivers 4 and two second drivers 7, wherein the four guide rail assemblies all adopt ball guide rail assemblies, the two drivers all adopt linear drivers, each guide rail assembly comprises a guide rail and a sliding block, balls are arranged in the sliding blocks and used for reducing resistance, and the balls are located in the guide rails of the V-shaped grooves and roll and used for reducing friction between the balls and the guide rails. Four guide rail components all adopt single V type, two V type guide rails of sliding friction or ball friction to be used for guaranteeing the slider normal back and forth movement on these guide rails to can transmit the load that bears on the activity end rib 104 to the guide rail on, two drivers all adopt the linear actuator, provide power for the slider back and forth movement on the guide rail, guarantee that activity wing 2 has sufficient space before folding, avoid appearing interfering between activity wing 2 and the fixed wing 1, still guarantee in addition that can retract after expansion back and fixed wing 1 has the gap, avoid appearing the gap before activity wing 2 and the fixed wing 1. Specifically, the movable end rib 104 is disposed between the front beam 103 and the rear beam 102, each of the rail assemblies includes a first rail 30, a second rail 50, a third rail 60, or a fourth rail 80, and a first rail top surface 301, a second rail top surface 501, a third rail top surface 601, and a fourth rail top surface 801 disposed on each rail, the first rail 30 and the second rail 50 are disposed on the front beam 103 of the fixed wing 1, and the respective rail top surfaces 301 and 501 are disposed in a parallel or overlapping relationship; the third guide rail 60 and the fourth guide rail 80 are arranged on the rear beam 102 of the fixed wing 1, the top surfaces 601 and 801 of the respective guide rails are arranged in a parallel or overlapped relation, and the first guide rail 30, the second guide rail 50, the third guide rail 60 and the fourth guide rail 80 are connected with the front beam and the rear beam through fasteners; each of the guide rails has a single V-shaped or double V-shaped cross section for assembling and carrying the respective slide block, the first slide block 31 is disposed on the first guide rail 30, the second slide block 51 is disposed on the second guide rail 50, the third slide block 61 is disposed on the third guide rail 60, the fourth slide block 81 is disposed on the fourth guide rail 80, the first slide block 31 and the second slide block 51 are connected with the front portion of the movable end rib 104, the movable end of the first linear actuator 4 is connected with the middle of the front portion of the movable end rib 104, the third slide block 61 and the fourth slide block 81 are connected with the rear portion of the movable end rib 104, the movable end of the second linear actuator 7 is connected with the middle of the rear portion of the movable end rib 104, the movable end rib 104 includes a first corner joint 1041, a first fixed joint 1042, a second corner joint 1043, a second fixed joint 1044 and a third corner joint 1045, that is, that two fixed joints 1042, 51, b, 1044 and three corner joints 1041, 1043, 1045, wherein two of the fixed joints 1042, 1044 are used for mounting the movable wing tip 2, and three corner joints 1041, 1043, 1045 are used for connecting the movable wing tip 2 and the folding mechanism, when the load of the movable wing tip 2 is transferred to the movable end rib 104 through the fixed joints 1042, 1044 and the corner joints 1041, 1043, 1045, the movable end rib 104 can transfer the load to the corresponding first guide rail 30, second guide rail 50, third guide rail 60, and fourth guide rail 80 through the above-mentioned respective slide blocks, and then to the front and rear beams 103, 102 of the fixed wing through the above-mentioned respective guide rails, because of the connection with the first slide block 31, the second slide block 51, the third slide block 61, and the fourth slide block 81.

As shown in fig. 4-6, specifically, a joint installation space 201 is left between the fixed wing and the movable wing tip 2, the movable end rib 4 includes a first corner joint 1041, a first fixed joint 1042, a second corner joint 1043, a second fixed joint 1044, and a third corner joint 1045, the first fixed joint 1042 and the second fixed joint 1044 are all disposed in the joint installation space, the first fixed joint 1044 and the second fixed joint 1044 are connected with the movable wing tip 2 and serve as a fixed rotation shaft of the movable wing tip 2, and at least two fixed joints are disposed so that the movable wing tip 2 can still normally rotate under the condition that one fixed joint is damaged; likewise, at least 3 corner joints are required. The folding mechanism is arranged between the fixed wing 1 and the movable wing tip 2, the folding mechanism comprises at least three third linear actuators 9 and at least three guide grooves 202, at least 3 first angle joints 1041, second angle joints 1043 and third angle joints 1045 are arranged on the lower portion of the outer side of the movable end rib 4, the first angle joints 1041, the second angle joints 1043 and the third angle joints 1045 are respectively connected with the bottoms of the three third linear actuators 9 in a one-to-one angle joint mode, angle joint sliders of the movable end portions of the three third linear actuators 9 are matched with the 3 guide grooves 202 on the movable wing tip 2 to move, the three third linear actuators 9 drive the movable wing tip 2 to rotate, and the movable wing tip 2 is folded.

Preferably, the movable wing tip 2 includes a winglet structure and an inner side rib structure, the inner side rib structure is provided with a tab joint at the upper side thereof to connect with the first fixed joint 1042 and the second fixed joint 1044 on the movable end rib 4, the inner side rib structure is provided with a connecting tab at the lower part thereof, and the tab is provided with a rectangular round slot connected with the movable end of the third linear actuator 9.

The driving of the folding mechanism is provided by at least three third linear drivers 9, the movable wing tip 2 is pushed to deflect along the axis of the fixed joint, the movable wing tip 2 is extended or shortened through the hydraulic driving or the electric driving of the at least three third linear drivers 9, and the folding of the movable wing tip 2 is realized.

The two rail assemblies on each side of the movable end rib 104 are connected to a linear actuator at one end, and the rail assemblies on both sides are connected to the movable end rib 104, so that the movable end rib 104 is ensured to reciprocate under the action of the linear actuators 4 and 7, and the motion causes the telescopic wing to have two states: the wings are in an unfolded state and a folded state, when the airplane flies, the wings are in the unfolded state, after the airplane speed is reduced to a certain value after the airplane lands, the movable ends of the first and second linear actuators 4 and 7 move to bring the first to fourth sliding blocks 31, 51, 61, 81 and the movable end rib 104 connected with the movable ends to move outwards, when the wings are folded for enough space, the movable ends of the first and second linear actuators 4 and 7 stop and lock, then the movable end of the third linear actuator 9 starts to move to push the movable wing tip 2 to rotate and fold along the fixed joints 1042 and 1044, at the same time, the movable end sliding block of the third linear actuator 9 moves along the guide slot 202 to avoid the dead-holding condition when the movable wing tip 2 rotates until the movable wing tip 2 moves 90 degrees, the third linear actuator 9 reaches the longest state and locks, and keeps the state in a parking position all the time, so as to reduce the requirement on the area of the stand; before the aircraft takes off, the wings are in a folded state, the third linear actuator 9 is unlocked and shortened, the movable wing tip 2 rotates 90 degrees towards the wing tip, the telescopic wing is in an unfolded state, at the moment, a large gap exists between the movable wing tip 2 and the fixed wing 1, the third linear actuator 9 is locked, then the movable ends of the first linear actuator 4 and the second linear actuator 7 are shortened, the movable end rib 104 moves towards the root of the fixed wing 1, and after the root of the movable wing tip 2 is contacted with the outer end part of the fixed wing, the first linear actuators 4 and 7 are locked and stop moving. The first and second linear actuators 4 and 7 have a self-locking function at the same time, locking the movable end rib 104 both when the movable wing tip 2 is in the fully extended position and when it is in the folded position.

While the foregoing description shows and describes several preferred embodiments of the utility model, it is to be understood, as noted above, that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the utility model as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (10)

1. A telescopic folding device, characterized in that the device comprises a telescopic mechanism and a folding mechanism, wherein,

the telescopic mechanism comprises a movable end rib, at least four guide rail components, at least two first drivers and at least two second drivers, the first and second guide rail components are arranged at one end of the movable end rib, the third and fourth guide rail components are arranged at the other end of the movable end rib,

the first driver connects the first and second rail assemblies; the second driver is connected with the third and fourth guide rail assemblies;

the folding mechanism comprises at least three third drivers and a guide groove, one ends of the at least three third drivers are connected with the movable end rib, and the other ends of the at least three third drivers are arranged in the guide groove.

2. The apparatus of claim 1, wherein each of the first through fourth rail assemblies comprises a first, second, third, or fourth rail, a top surface of the respective rail, and a slider disposed on each of the rails.

3. The retractable folding apparatus of claim 2, characterized in that said first, second, third or fourth rails are of single "V" or double "V" type in cross-section.

4. The retractable folding apparatus of claim 3, wherein said first actuator is connected to a first slider on said first rail and a second slider on a second rail, and said second actuator is connected to a third slider on said third rail and a fourth slider on a fourth rail.

5. The retractable folding apparatus of claim 1, characterized in that said movable end rib comprises at least three corner joints, said at least three corner joints being connected to said at least three third actuators, respectively.

6. A retractable folding wing comprising the retractable folding apparatus of any one of claims 1 to 5, a fixed wing and a movable wing tip, wherein the retractable mechanism is disposed inside a wing box of the fixed wing, and the folding mechanism is disposed between the fixed wing and the movable wing tip.

7. The retractable folding wing according to claim 6, characterized in that the fixed wing comprises a front spar and a rear spar, the movable end rib being arranged between the front spar and the rear spar.

8. The retractable folding wing of claim 7, wherein one end of the first and second rails of the first and second rail assemblies is disposed on the front spar and the other end of the first and second rails of the first and second rail assemblies is disposed on the movable end rib; one ends of a third guide rail and a fourth guide rail of the third guide rail assembly and the fourth guide rail assembly are arranged on the back beam, and the other ends of the third guide rail and the fourth guide rail of the third guide rail assembly and the fourth guide rail assembly are arranged on the movable end rib.

9. The retractable folding wing of claim 6, wherein the movable wing tip comprises an inner end rib structure, a lug is arranged at the lower part of the inner end rib structure, and a rectangular round slot is arranged on the lug.

10. The retractable folding wing according to claim 6, characterized in that the movable end rib is provided with at least two fixed joints connecting the movable wing tips.

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