CN116534243B - Wing unfolding and folding device and aircraft - Google Patents
Wing unfolding and folding device and aircraft Download PDFInfo
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- CN116534243B CN116534243B CN202310780686.XA CN202310780686A CN116534243B CN 116534243 B CN116534243 B CN 116534243B CN 202310780686 A CN202310780686 A CN 202310780686A CN 116534243 B CN116534243 B CN 116534243B
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- 230000013011 mating Effects 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims description 19
- 208000032370 Secondary transmission Diseases 0.000 claims description 9
- 208000032369 Primary transmission Diseases 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C3/00—Wings
- B64C3/38—Adjustment of complete wings or parts thereof
- B64C3/56—Folding or collapsing to reduce overall dimensions of aircraft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C29/00—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft
- B64C29/02—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis vertical when grounded
Abstract
The application discloses a wing unfolding and folding device and an aircraft, and relates to the technical field of aircrafts. The wing unfolding and folding device comprises: the fixed seat is arranged at the end part of the inner wing far away from the fuselage; one side of the folding component is rotationally connected with the fixed seat, and the other side of the folding component is connected with the outer wing and is provided with a first matching structure and a second matching structure; the output end of the rotating mechanism is connected with the folding assembly and is configured to drive the folding assembly to rotate so that the first matching structure and the second matching structure are switched at the locking position; and a locking mechanism having an output end configured to be locked and disengaged in combination with the first mating structure or the second mating structure in the locked position. According to the embodiment of the application, the automatic unfolding and folding of the wing are realized through the rotating mechanism, the automatic locking of the wing in the unfolding state and the automatic locking of the wing in the folding state are realized through the locking mechanism, and the space occupation ratio of the aircraft in the storage and transportation processes is effectively reduced.
Description
Technical Field
The application relates to the technical field of aircrafts, in particular to a wing unfolding and folding device and an aircraft.
Background
Most of the existing aircrafts are added with a pair of vertical take-off and landing motors and propellers on the basis of a fixed-wing aircraft so as to meet the vertical take-off and landing requirements. Such vertical take-off vehicles are generally configured with a fuselage and wings as a unitary structure, which results in a large space occupation during storage and transportation and is not easy to store. The existing part of the vertical aircraft can realize folding of the wing, but can not realize locking after folding of the wing, so that the existing part of the vertical aircraft is easy to damage in storage and transportation.
Disclosure of Invention
The wing unfolding and folding device and the aircraft are provided, so that the technical problem that the wing folding device is easy to damage in storage and transportation due to the fact that the wing folding device cannot be locked after folding in the prior art is solved.
In a first aspect, an embodiment of the present application provides a wing unfolding and folding device, including: the fixed seat is arranged at the end part of the inner wing far away from the fuselage; one side of the folding component is rotationally connected with the fixed seat, and the other side of the folding component is connected with the outer wing and is provided with a first matching structure and a second matching structure; the output end of the rotating mechanism is connected with the folding assembly and is configured to drive the folding assembly to rotate, so that the first matching structure and the second matching structure are switched at a locking position; and a locking mechanism having an output end configured to be locked and disengaged in combination with the first mating structure or the second mating structure in the locked position.
With reference to the first aspect, in one possible implementation manner, the distance between the first mating structure and the rotation axis of the folding assembly is equal to the distance between the second mating structure and the rotation axis of the folding assembly.
With reference to the first aspect, in one possible implementation manner, the folding assembly includes a driving folding member and a driven folding member; the driving folding piece and the driven folding piece are symmetrically arranged at intervals; one sides of the driving folding piece and the driven folding piece are respectively connected with the fixing seat in a rotating mode, and the other sides of the driving folding piece and the driven folding piece are respectively connected with the outer wing.
With reference to the first aspect, in one possible implementation manner, the locking mechanism includes a first power member, a rotating assembly, and a locking lever; the first power piece is arranged on the fixed seat, and the output end of the first power piece is connected with the rotating assembly; the locking rod is connected to the rotating assembly and faces the folding assembly; the locking lever is configured to be locked and disengaged in combination with the first mating structure or the second mating structure in the locked position.
With reference to the first aspect, in one possible implementation manner, the rotating assembly includes a rolling screw, a first connecting piece, and two nuts; the rolling screw rod comprises a first section screw rod and a second section screw rod which are integrally connected; the first section of screw rod is connected to the output end of the first power piece; the second section screw rod is connected to one end of the first section screw rod, which is far away from the first power piece; the first section of screw rod and the second section of screw rod are opposite in rotation direction, and the nuts are respectively arranged; the first connecting piece is fixed on the fixed seat and connected to one end, far away from the first section of screw rod, of the second section of screw rod; the two nuts are connected to the locking rod through a second connecting piece.
With reference to the first aspect, in a possible implementation manner, the locking mechanism further includes a guide assembly; the guide assembly comprises a linear bearing and/or a guide shaft; the linear bearing is connected to the fixed seat; the locking rod is configured to be inserted into the linear bearing and slide along the linear bearing; the fixing seat is provided with a guide groove; the guide shaft is connected to the second connecting piece, is perpendicular to the axial direction of the locking rod, and moves along the guide groove.
With reference to the first aspect, in one possible implementation manner, the rotation mechanism includes a second power member, a gear box, and a rotation output shaft; the output end of the second power piece is connected with the input end of the gear box and is fixedly arranged on the fixed seat; the rotary output shaft is connected to the active folding member.
With reference to the first aspect, in one possible implementation manner, the gearbox includes a casing, a reduction gear assembly, and a steering gear assembly; the box body is arranged on the fixing seat; the speed reduction gear assembly and the steering gear assembly are both positioned in the box body, the input end of the speed reduction gear assembly is connected with the output end of the second power piece, and the output end of the speed reduction gear assembly is connected with the steering gear assembly; the steering gear assembly is positioned above the reduction gear assembly and is connected to the rotary output shaft.
With reference to the first aspect, in one possible implementation manner, the reduction gear assembly includes a primary reduction gear set, a secondary reduction gear set, and a tertiary reduction gear set; the primary reduction gear set comprises a primary driving gear, a primary transmission gear and a primary input shaft; the secondary reduction gear set comprises a secondary driving gear, a secondary transmission gear and a secondary connecting shaft; the three-stage reduction gear set comprises a three-stage driving gear and a three-stage transmission gear; the steering gear assembly comprises a steering large gear and a steering output shaft; the primary input shaft, the secondary connecting shaft and the steering output shaft are rotationally connected to the box body and are arranged in parallel; the steering output shaft is positioned above the primary input shaft and the secondary connecting shaft; the primary input shaft is sequentially provided with the primary driving gear, the secondary transmission gear and the tertiary driving gear and is connected with the output end of the second power piece; the secondary connecting shaft is sequentially provided with the primary transmission gear, the secondary driving gear and the tertiary transmission gear; the steering output shaft is provided with the steering large gear and corresponds to the rotating output shaft; the primary driving gear is meshed with the primary transmission gear, the primary transmission gear drives the secondary connecting shaft to rotate, the secondary connecting shaft drives the secondary driving gear to rotate, the secondary driving gear is meshed with the secondary transmission gear, the secondary transmission gear drives the tertiary driving gear to rotate, the tertiary driving gear is meshed with the tertiary transmission gear, and the tertiary transmission gear is meshed with the steering gear; the secondary transmission gear and the tertiary driving gear are fixedly connected.
In a second aspect, embodiments of the present application provide an aircraft comprising a wing deployment and folding device according to the first aspect or any one of the first aspects.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects:
the wing unfolding and folding device provided by the embodiment of the application comprises a fixed seat, a folding assembly, a rotating mechanism and a locking mechanism. In practical application, when the wing needs to be unfolded, the rotating mechanism drives the folding assembly to rotate to the second matching structure, and the output end of the locking mechanism is combined and locked with the second matching structure; when the wing needs to be folded, the output end of the locking mechanism is combined with the second matching structure to be separated, the rotating mechanism drives the folding assembly to rotate to the first matching structure, and the output end of the locking mechanism is combined and locked with the first matching structure. According to the embodiment of the application, the automatic unfolding and folding of the wing are realized through the rotating mechanism, and the automatic locking of the wing in the unfolding state and the automatic locking of the wing in the folding state are realized through the locking mechanism. The wings are automatically locked after being unfolded, so that the normal working state of the wings can be ensured; the wings are automatically locked after being folded, so that the occupied area of the aircraft can be effectively reduced, and meanwhile, the wings can jolt during storage and transportation, so that damage to all parts of the wings can be avoided. Therefore, the wing unfolding and folding device provided by the embodiment of the application has reasonable layout, convenient operation and simple and reliable structure.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments of the present application will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of the present application in an extended state of a wing;
fig. 2 is a schematic structural diagram of a rotating mechanism according to an embodiment of the present application;
FIG. 3 is a schematic view of a wing in a folded configuration according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a locking mechanism according to an embodiment of the present application;
fig. 5 is a schematic structural view of a folding assembly according to an embodiment of the present application;
FIGS. 6A and 6B are schematic views of a gearbox according to an embodiment of the present application from different perspectives;
fig. 7 is a schematic structural view of an aircraft according to an embodiment of the application.
Reference numerals: 1-a fixed seat; 11-a guide groove; a 2-fold assembly; 21-a first mating structure; 22-a second mating structure; 23-active folding member; 24-driven folding member; a 3-locking mechanism; 31-a first power member; 32-a rotating assembly; 321-a rolling screw rod; 3211-a first section of screw rod; 3212-a second section of screw rod; 322-a second connector; 323-a nut; 324-first connector; 33-locking bar; 34-a guide assembly; 341-a linear bearing; 342-a guide shaft; 35-a third connector; 4-through holes; 5-a rotation mechanism; 51-a second power member; 52-a gear box; 521-a box body; 5211-upper cover; 5212-lower cover; 522-a reduction gear assembly; 5221-a primary reduction gear set; 52211-primary drive gear; 52212-primary drive gear; 52213-primary input shaft; 5222-a two-stage reduction gear set; 52221-two stage drive gear; 52222-two stage drive gear; 52223-secondary connecting shaft; 5223-three stage reduction gear set; 52231-three stage drive gear; 52232-three stage drive gear; 523-steering gear assembly; 5231-steering gearwheel; 5232-steering output shaft; 53-rotating the output shaft; 54-mounting plates; 6-fixing plates; 7-an inner wing; 8-an outer wing; 9-hanging up multiple rotors.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the embodiments of the present application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the embodiments of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.
The embodiment of the application provides a wing unfolding and folding device, which comprises a fixed seat 1, a folding assembly 2, a rotating mechanism 5 and a locking mechanism 3 as shown in figures 1 to 7. The fixing seat 1 is arranged at the end part of the inner wing 7, which is far away from the fuselage. One side of the folding assembly 2 is rotatably connected to the fixed seat 1, and the other side is connected to the outer wing 8, and is provided with a first mating structure 21 and a second mating structure 22. The output end of the rotating mechanism 5 is connected with the folding assembly 2 and is configured to drive the folding assembly 2 to rotate so as to switch the first matching structure 21 and the second matching structure 22 at the locking position; and the output end of the locking mechanism 3 is configured to be locked and disengaged in combination with the first mating structure 21 or the second mating structure 22 in the locked position.
When the wings need to be unfolded, the multi-rotor 9 and the inner wing 7 are fixed, and the outer wing 8 is driven to rotate by the folding assembly 2, as shown in fig. 7.
Specifically, the fixing base 1 is designed in a shape like a Chinese character 'ji', is integrally formed, and provides a reference for mounting the rotating mechanism 5 and the locking mechanism 3. The wing unfolding and folding device provided by the embodiment of the application adopts a straight-line arrangement design, and is reasonable in layout and small in space occupation ratio.
As shown in fig. 1, the output end of the rotating mechanism 5 is connected to the folding assembly 2 and configured to drive the folding assembly 2 to rotate, so that the first engaging structure 21 and the second engaging structure 22 are switched in the locking position.
In practical application, when the wing needs to be unfolded, the rotating mechanism 5 drives the folding assembly 2 to rotate to the second matching structure 22, and the output end of the locking mechanism 3 is combined and locked with the second matching structure 22; when the wing needs to be folded, the output end of the locking mechanism 3 is combined with and separated from the second matching structure 22, the rotating mechanism 5 drives the folding assembly 2 to rotate to the first matching structure 21, and the output end of the locking mechanism 3 is combined and locked with the first matching structure 21. According to the embodiment of the application, the automatic unfolding and folding of the wing are realized through the rotating mechanism 5, and the automatic locking in the unfolded state and the automatic locking in the folded state of the wing are realized through the locking mechanism 3. The wings are automatically locked after being unfolded, so that the normal working state of the wings can be ensured; the wings are automatically locked after being folded, so that the occupied area of the aircraft can be effectively reduced, and meanwhile, the wings can jolt during storage and transportation, so that damage to all parts of the wings can be avoided. Therefore, the wing unfolding and folding device provided by the embodiment of the application has reasonable layout, convenient operation and simple and reliable structure.
As shown in fig. 5, the distance between the first mating structure 21 and the rotational axis of the folding assembly 2 is equal to the distance between the second mating structure 22 and the rotational axis of the folding assembly 2.
As shown in fig. 3, the folding assembly 2 includes a driving folding member 23 and a driven folding member 24. The driving folding member 23 and the driven folding member 24 are symmetrically spaced apart. One side of the driving folding piece 23 and the driven folding piece 24 are respectively connected with the fixed seat 1 in a rotating way, and the other side of the driving folding piece and the driven folding piece are respectively connected with the outer wing 8. The driving mechanism drives the driving folding piece 23 to rotate, the driving folding piece 23 drives the outer wing 8 to rotate, and the outer wing 8 drives the driven folding piece 24 to synchronously rotate, so that the transmission precision of the locking mechanism 3 is high, and the locking synchronism is good.
The first mating structure 21 and the second mating structure 22 are a first locking hole and a second locking hole provided in the folding assembly 2, respectively. The output end of the locking mechanism 3 can be inserted into the first locking hole or the second locking hole, so that folding locking of the wing or unfolding locking of the wing can be realized. In particular, the wing unfolding and folding device further comprises a fixing plate 6. The fixing plate 6 is fixed in the fixing base 1, and the fixing plate 6 is provided with a structure matched with the first locking hole and the second locking hole, so that the folding assembly 2 can be rotatably connected to the fixing plate 6. Further, the fixing plates 6 are of double-lug structures, and the folding assembly 2 is located between the fixing plates 6, so that the structure is more stable, and the bearing capacity is better. Of course, the embodiment of the present application is not limited to the above structure, and the first matching structure 21 and the second matching structure 22 may be a first lock rod and a second lock rod, respectively, and the locking mechanism 3 may be provided with a first locking hole and a second locking hole that are matched with the first locking hole and the second locking hole, and may also implement folding locking of the wing or unfolding locking of the wing.
Further, the distance of the first locking hole from the rotational axis of the folding assembly 2 is equal to the distance of the second locking hole from the rotational axis of the folding assembly 2. Specifically, the rotation angle of the wing in the embodiment of the application from folding to unfolding is 135 degrees.
As shown in fig. 4, the locking mechanism 3 includes a first power member 31, a rotating assembly 32, and a locking lever 33. The first power piece 31 is installed on the fixing base 1, and the output end of the first power piece 31 is connected to the rotating assembly 32. The locking lever 33 is connected to the rotating assembly 32 and faces the folding assembly 2. The locking lever 33 is configured to be locked and unlocked in combination with the first mating structure 21 or the second mating structure 22 in the locked position.
The first power member 31 of the locking mechanism 3 drives the rotating assembly 32 to rotate, and the rotating assembly 32 drives the locking rod 33 to move, so that the locking rod 33 can be combined with the first matching structure 21 or the second matching structure 22 at the locking position to be locked and disengaged.
In one implementation of an embodiment of the application, the locking lever 33 may be disposed toward one side of the active folding member 23. Of course, the present application is not limited to the above structure, and the present application may be provided with two locking rods 33, and the two locking rods 33 may be respectively disposed towards the driving folding member 23 and the driven folding member 24, so that the transmission precision of the locking mechanism 3 is higher, and the locking synchronism is better.
Specifically, the locking mechanism 3 further includes a third link 35. The third connecting piece 35 is L-shaped, one side of the third connecting piece 35 is fixed on the fixing base 1, the other side of the third connecting piece 35 is provided with a structure matched with the first power piece 31, and the first power piece 31 is inserted into the structure and fixed with the third connecting piece 35, so that the structure is compact and the stability is good.
As shown in fig. 4, the rotating assembly 32 includes a ball screw 321, a first link 324, and two nuts 323. The rolling screw 321 includes a first screw 3211 and a second screw 3212 integrally connected. The first segment screw 3211 is connected to an output end of the first power member 31. The second segment screw 3212 is connected to an end of the first segment screw 3211 remote from the first power member 31. The first and second screws 3211 and 3212 are opposite in rotation direction and are respectively provided with nuts 323. The first connecting piece 324 is fixed to the fixing base 1 and is connected to one end of the second section screw rod 3212 far away from the first section screw rod 3211. Two nuts 323 are connected to the locking lever 33 through the second connection member 322. The second link 322 moves in synchronization with the nut 323, and the second link 322 prevents the locking lever 33 from rotating radially.
Further, the first power member 31 drives the first section screw rod 3211 and the second section screw rod 3212 to rotate, so that the two nuts 323 can be driven to rotate synchronously and positively, and further the locking rod 33 can be pushed to advance or retreat along a straight line, so that synchronous locking or disengagement of the locking rod 33 is completed. Therefore, the locking mechanism 3 of the embodiment of the application has high transmission precision and good locking synchronism.
The entire travel of the nut 323 located on the first screw 3211 does not exceed the first screw 3211 and the entire travel of the nut 323 located on the second screw 3212 does not exceed the second screw 3212.
Of course, the embodiment of the present application is not limited to the above structure, and the locking mechanism 3 may be a crank-link structure, and locking and disengagement of the locking mechanism 3 may be achieved as well.
As shown in fig. 2 and 4, the locking mechanism 3 further comprises a guide assembly 34. The guide assembly 34 includes a linear bearing 341 and/or a guide shaft 342. The linear bearing 341 is connected to the holder 1. The lock lever 33 is configured to be inserted into the linear bearing 341 and slide along the linear bearing 341. The holder 1 is provided with a guide slot 11. The guide shaft 342 is connected to the second connecting member 322, is perpendicular to the axial direction of the locking lever 33, and moves along the guide groove 11. The linear bearing 341 serves as a linear guide for the lock lever 33, and the guide shaft 342 serves as an anti-rotation guide for the lock lever 33. The locking mechanism 3 of the embodiment of the application adopts the rolling screw rod 321 for transmission and the linear bearing 341 and/or the guide shaft 342 for guiding, so that the locking mechanism 3 has high transmission precision and good locking synchronism.
Further, the linear bearing 341 is sleeved in a flange, and the flange is fixedly connected with the fixing seat 1.
As shown in fig. 6A, the rotation mechanism 5 includes a second power member 51, a gear box 52, and a rotation output shaft 53. The output end of the second power element 51 is connected to the input end of the gear box 52 and is fixedly mounted to the fixing base 1. The rotary output shaft 53 is connected to the active folding member 23. Specifically, the rotation mechanism 5 further includes a mounting plate 54. The mounting plate 54 is mounted on the fixing base 1, and the second power member 51 is fixed to the fixing base 1 through the mounting plate 54. The gear box 52 is fixed on the fixed plate 6, one end of the rotary output shaft 53 is fixed on the gear box 52, the other end passes through one side of the fixed plate 6 and is connected with the driving folding piece 23, and deep groove ball bearings are arranged at two ends of the rotary output shaft 53. The deep groove ball bearing has small bearing friction coefficient and high limit rotation speed. The rotating mechanism 5 drives the gear box 52 through the second power piece 51 to drive the rotating output shaft 53 to rotate, and then drives the driving folding piece 23 to rotate, so that the wing is rotated.
As shown in fig. 6B, the gear box 52 includes a box 521, a reduction gear assembly 522, and a steering gear assembly 523. The box 521 is mounted on the fixing base 1. The reduction gear assembly 522 and the steering gear assembly 523 are both positioned in the box 521, an input end of the reduction gear assembly 522 is connected to an output end of the second power member 51, and an output end of the reduction gear assembly 522 is connected to the steering gear assembly 523. The steering gear assembly 523 is located above the reduction gear assembly 522 and is connected to the rotary output shaft 53. The embodiment of the application can realize a large reduction ratio by the reduction gear assembly 522, reduce the output rotating speed of the second power member 51 and enlarge the rotation output torque.
In one implementation of an embodiment of the present application, the reduction gear assembly 522 includes a primary reduction gear set 5221, a secondary reduction gear set 5222, and a tertiary reduction gear set 5223. The primary reduction gear set 5221 includes a primary drive gear 52211, a primary transfer gear 52212, and a primary input shaft 52213. The secondary reduction gear set 5222 includes a secondary drive gear 52221, a secondary transfer gear 52222, and a secondary connecting shaft 52223. The three stage reduction gear set 5223 includes a three stage drive gear 52231 and a three stage transfer gear 52232. The steering gear assembly 523 includes a steering gear wheel 5231 and a steering output shaft 5232. The primary input shaft 52213, the secondary connecting shaft 52223, and the steering output shaft 5232 are rotatably connected to the casing 521 and disposed in parallel. The steering output shaft 5232 is located above the primary input shaft 52213 and the secondary connecting shaft 52223. The primary input shaft 52213 is provided with a primary drive gear 52211, a secondary drive gear 52222 and a tertiary drive gear 52231 in this order, and is connected to the output end of the second power member 51. The secondary connection shaft 52223 is provided with a primary transmission gear 52212, a secondary driving gear 52221 and a tertiary transmission gear 52232 in this order. The steering output shaft 5232 is mounted with a steering gear wheel 5231 and corresponds to the rotating output shaft 53. The primary driving gear 52211 is meshed with the primary driving gear 52212, the primary driving gear 52212 drives the secondary connecting shaft 52223 to rotate, the secondary connecting shaft 52223 drives the secondary driving gear 52221 to rotate, the secondary driving gear 52221 is meshed with the secondary driving gear 52222, the secondary driving gear 52222 drives the tertiary driving gear 52231 to rotate, the tertiary driving gear 52231 is meshed with the tertiary driving gear 52232, and the tertiary driving gear 52232 is meshed with the steering gear 5231. Bearings are arranged in the secondary transmission gear 52222 and the tertiary transmission gear 52232, and the secondary transmission gear 52222 is fixedly connected with the tertiary driving gear 52231. Specifically, bearings are mounted at both ends of the secondary connection shaft 52223. The gears are provided with spacer intervals, and the spacers are clamped on the bearing inner ring. The gear box 52 of the embodiment of the application has compact structure, small space occupation ratio and high meshing precision between gears, and reduces the installation difficulty.
As shown in fig. 6A, the number of teeth of the steering gear wheel 5231 and the three-stage transmission gear 52232 in the embodiment of the present application is the same, and the steering gear wheel 5231 is located directly above the three-stage transmission gear 52232, so that the steering output shaft 5232 is connected with the rotating output shaft 53, so that the rotating output shaft 53 is located at the top of the folding assembly 2. Therefore, the whole device of the embodiment of the application has compact structure and good transmission effect.
Preferably, the primary reduction gear set 5221, the secondary reduction gear set 5222, the tertiary reduction gear set 5223 and the steering gear assembly 523 in the box 521 are rotatably mounted on the box 521, and bearings may be disposed at the rotational connection point of the box 521 to reduce the rotational friction of the primary reduction gear set 5221, the secondary reduction gear set 5222, the tertiary reduction gear set 5223 and the steering gear assembly 523.
As shown in fig. 6A, the case 521 includes an upper cover 5211 and a lower cover 5212, where the upper cover 5211 is detachably connected to the lower cover 5212, and the upper cover 5211 is easy to be detached and convenient for later maintenance.
With continued reference to fig. 6A, the box 521 is provided with a through hole 4 through which the locking lever 33 passes, and the through hole 4 can provide a guiding function for the locking lever 33, and at the same time, the wing unfolding and folding device is more compact in structure and occupies smaller space.
Further, the first power member 31 and the second power member 51 may be steering engines. Of course, the embodiment of the application is not limited by the steering engine, and can also be a motor.
The embodiment of the application provides an aircraft, which comprises the wing unfolding and folding device.
In this specification, each embodiment is described in a progressive manner, and the same or similar parts of each embodiment are referred to each other, and each embodiment is mainly described as a difference from other embodiments.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the present application; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (8)
1. A wing unfolding and folding device, comprising:
the fixed seat (1) is arranged at the end part of the inner wing (7) far away from the machine body;
the folding assembly (2) is rotatably connected to the fixing seat (1) on one side and connected to the outer wing (8) on the other side, and is provided with a first matching structure (21) and a second matching structure (22);
the output end of the rotating mechanism (5) is connected with the folding assembly (2) and is configured to drive the folding assembly (2) to rotate so that the first matching structure (21) and the second matching structure (22) are switched at the locking position; and
a locking mechanism (3) with an output end configured to be locked and disengaged in combination with the first mating structure (21) or the second mating structure (22) in the locked position;
the folding assembly (2) comprises a driving folding piece (23) and a driven folding piece (24);
the locking mechanism (3) comprises a first power piece (31), a rotating assembly (32) and a locking rod (33);
the first power piece (31) is arranged on the fixed seat (1), and the output end of the first power piece (31) is connected with the rotating assembly (32);
the locking lever (33) is connected to the rotating assembly (32) and faces the folding assembly (2);
the locking lever (33) is configured to be locked and disengaged in combination with the first mating structure (21) or the second mating structure (22) in the locked position;
the rotating assembly (32) comprises a rolling screw rod (321), a first connecting piece (324) and two nuts (323);
the rolling screw rod (321) comprises a first section screw rod (3211) and a second section screw rod (3212) which are integrally connected;
the first section screw rod (3211) is connected to the output end of the first power piece (31);
the second section screw rod (3212) is connected to one end of the first section screw rod (3211) which is far away from the first power piece (31);
the first section screw rod (3211) and the second section screw rod (3212) are opposite in rotation direction, and the nuts (323) are respectively arranged;
the first connecting piece (324) is fixed on the fixed seat (1) and is connected to one end, far away from the first section screw rod (3211), of the second section screw rod (3212);
-two of said nuts (323) are connected to said locking bar (33) by means of a second connection piece (322);
two locking bars (33) are respectively arranged towards the driving folding piece (23) and the driven folding piece (24).
2. Wing deployment and folding device according to claim 1, characterized in that the distance of the first mating structure (21) from the axis of rotation of the folding assembly (2) is equal to the distance of the second mating structure (22) from the axis of rotation of the folding assembly (2).
3. Wing deployment and folding device according to claim 1, characterized in that the driving folding member (23) and the driven folding member (24) are symmetrically spaced apart;
one sides of the driving folding piece (23) and the driven folding piece (24) are respectively connected with the fixing seat (1) in a rotating mode, and the other sides of the driving folding piece and the driven folding piece are respectively connected with the outer wing (8).
4. Wing deployment and folding device according to claim 1, characterized in that the locking mechanism (3) further comprises a guiding assembly (34);
the guide assembly (34) comprises a linear bearing (341) and/or a guide shaft (342);
the linear bearing (341) is connected to the fixed seat (1);
the locking lever (33) is configured to be insertable into the linear bearing (341) and to slide along the linear bearing (341);
the fixing seat (1) is provided with a guide groove (11);
the guide shaft (342) is connected to the second connecting member (322), is perpendicular to the axial direction of the locking lever (33), and moves along the guide groove (11).
5. Wing deployment and folding device according to claim 1, characterized in that the rotation mechanism (5) comprises a second power element (51), a gearbox (52) and a rotation output shaft (53);
the output end of the second power piece (51) is connected with the input end of the gear box (52) and is fixedly arranged on the fixed seat (1);
the rotary output shaft (53) is connected to the active folding member (23).
6. The wing deployment and folding device of claim 5, wherein the gearbox (52) includes a box (521), a reduction gear assembly (522), and a steering gear assembly (523);
the box body (521) is arranged on the fixed seat (1);
the speed reduction gear assembly (522) and the steering gear assembly (523) are both positioned in the box body (521), the input end of the speed reduction gear assembly (522) is connected to the output end of the second power piece (51), and the output end of the speed reduction gear assembly (522) is connected to the steering gear assembly (523);
the steering gear assembly (523) is located above the reduction gear assembly (522) and is connected to the rotary output shaft (53).
7. The wing deployment and folding device of claim 6, characterized in that the reduction gear assembly (522) comprises a primary reduction gear set (5221), a secondary reduction gear set (5222), and a tertiary reduction gear set (5223);
the primary reduction gear set (5221) comprises a primary driving gear (52211), a primary transmission gear (52212) and a primary input shaft (52213); the secondary reduction gear set (5222) comprises a secondary driving gear (52221), a secondary transmission gear (52222) and a secondary connecting shaft (52223); the three-stage reduction gear set (5223) comprises a three-stage driving gear (52231) and a three-stage transmission gear (52232);
the steering gear assembly (523) includes a steering gear wheel (5231) and a steering output shaft (5232);
the primary input shaft (52213), the secondary connecting shaft (52223) and the steering output shaft (5232) are rotatably connected to the box body (521) and are arranged in parallel; the steering output shaft (5232) is positioned above the primary input shaft (52213) and the secondary connecting shaft (52223);
the primary input shaft (52213) is sequentially provided with the primary driving gear (52211), the secondary transmission gear (52222) and the tertiary driving gear (52231) and is connected with the output end of the second power element (51);
the secondary connecting shaft (52223) is provided with the primary transmission gear (52212), the secondary driving gear (52221) and the tertiary transmission gear (52232) in sequence;
the steering output shaft (5232) is provided with the steering large gear (5231) and corresponds to the rotating output shaft (53);
the primary driving gear (52211) is meshed with the primary driving gear (52212), the primary driving gear (52212) drives the secondary connecting shaft (52223) to rotate, the secondary connecting shaft (52223) drives the secondary driving gear (52221) to rotate, the secondary driving gear (52221) is meshed with the secondary driving gear (52222), the secondary driving gear (52222) drives the tertiary driving gear (52231) to rotate, the tertiary driving gear (52231) is meshed with the tertiary driving gear (52232), and the tertiary driving gear (52232) is meshed with the steering gear (5231);
the two-stage transmission gear (52222) and the three-stage transmission gear (52232) are internally provided with bearings, and the two-stage transmission gear (52222) and the three-stage driving gear (52231) are fixedly connected.
8. An aircraft comprising a wing deployment and folding device according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310780686.XA CN116534243B (en) | 2023-06-29 | 2023-06-29 | Wing unfolding and folding device and aircraft |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310780686.XA CN116534243B (en) | 2023-06-29 | 2023-06-29 | Wing unfolding and folding device and aircraft |
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| CN116534243B true CN116534243B (en) | 2023-10-13 |
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Also Published As
| Publication number | Publication date |
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| CN116534243A (en) | 2023-08-04 |
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