CN114193989A - Folding mechanism, folding wing and aircraft - Google Patents
Folding mechanism, folding wing and aircraft Download PDFInfo
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- CN114193989A CN114193989A CN202111642827.9A CN202111642827A CN114193989A CN 114193989 A CN114193989 A CN 114193989A CN 202111642827 A CN202111642827 A CN 202111642827A CN 114193989 A CN114193989 A CN 114193989A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 88
- 230000005540 biological transmission Effects 0.000 claims abstract description 127
- 230000033001 locomotion Effects 0.000 claims abstract description 20
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 230000009471 action Effects 0.000 description 7
- 230000000712 assembly Effects 0.000 description 7
- 238000000429 assembly Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000000149 penetrating effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
- B60F5/00—Other convertible vehicles, i.e. vehicles capable of travelling in or on different media
- B60F5/02—Other convertible vehicles, i.e. vehicles capable of travelling in or on different media convertible into aircraft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/473—Constructional features
- B64C27/48—Root attachment to rotor head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/473—Constructional features
- B64C27/50—Blades foldable to facilitate stowage of aircraft
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
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- Transportation (AREA)
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Abstract
The application provides a folding mechanism, which is applied to a foldable rotor wing device, the folding mechanism comprises a fixed component and a movable component which are opposite, a locking component, a transmission component and a driving component, the movable component comprises a rotating connecting part and a movable part, the rotating connecting part is rotatably connected with the fixed component, the movable part is selectively connected with or separated from the fixed component, the locking component is selectively connected with or separated from the movable part, the transmission component is connected with the rotating connecting part, the driving component is arranged on the fixed component and is in transmission connection with the locking component so as to drive the locking component to be selectively connected with or separated from the movable part, the driving component is also in transmission connection with the transmission component and is used for driving the transmission component to move, the movement of the transmission component is used for driving the rotating connecting part to rotate relative to the fixed component so as to drive the movable part to be selectively connected with or separated from the fixed component, the drive assembly is also adapted to be coupled to a power assembly of the foldable rotor apparatus. The application also provides a folding wing and an aircraft.
Description
Technical Field
The application relates to the technical field of folding, concretely relates to folding mechanism, folding wing and aircraft.
Background
At present, the size of helicopter formula aircraft rotor blade is all great generally, deposits or all needs very big space in the removal process, and current helicopter is in order to reduce paddle occupation space, generally designs into folded cascade with the paddle, and when the helicopter did not use, the paddle is collapsible to be packed up promptly, reduces space occupancy, and when the helicopter used, the paddle expandes and flies. The folding structure of the rotor wing comprises an automatic folding scheme and a manual folding scheme. Wherein, the folding of rotor is realized mostly through the combination of the structure that sets up the worm gear, the control unit and relay to automatic folding scheme, however, automatic folding structure is more complicated, needs mechanical structure and corresponding sensor cooperation to realize the folding of rotor, and manufacturing cost is high, and electrical components is more, has increased the complexity of control system and installation, and manual folding scheme troublesome poeration.
Therefore, how to provide an automatic folding system for a rotor wing of a rotary-wing helicopter, which has a simple structure, low manufacturing cost, few electric control elements and easy installation and control, is a problem to be solved by those skilled in the art.
Disclosure of Invention
The present application aims to provide a folding mechanism, a folding wing and an aircraft, so as to solve the above problems. The present application achieves the above object by the following technical solutions.
In a first aspect, the present disclosure provides a folding mechanism applied to a foldable rotor device, the folding mechanism includes a fixed component and a movable component, a locking component, a transmission component and a driving component, the movable component includes a rotating connecting portion and a movable portion, the rotating connecting portion is rotatably connected to the fixed component, the movable portion is selectively connected to or separated from the fixed component, the locking component is selectively connected to or separated from the movable portion, the transmission component is connected to the rotating connecting portion, the driving component is disposed on the fixed component and is in transmission connection with the locking component to drive the locking component to be selectively connected to or separated from the movable portion, the driving component is further in transmission connection with the transmission component to drive the transmission component to move, the movement of the transmission component is used to drive the rotating connecting portion to rotate relative to the fixed component to drive the movable portion to be selectively connected to or separated from the fixed component, the driving assembly is also used for being connected with a power assembly of the foldable rotor wing device; the fixed assembly is used for being connected to a hub of the foldable rotor wing device, and the movable assembly is connected to a blade of the foldable rotor wing device; alternatively, the fixed component is adapted to be attached to a blade of the foldable rotor device and the movable component is attached to a hub of the foldable rotor device.
In one embodiment, the driving assembly includes a driving connecting rod and a driving member, the driving member is disposed on the fixing assembly, the driving connecting rod is connected to the driving member, and the driving connecting rod is further connected to the transmission assembly and the locking assembly.
In one embodiment, the locking assembly comprises a locking member, the movable portion is provided with a plug hole, and the locking member is selectively plugged into the plug hole or separated from the plug hole.
In one embodiment, the locking assembly further includes a first locking link rotatably coupled between the drive assembly and the second locking link, a second locking link rotatably coupled between the first locking link and the third locking link, and a third locking link coupled to the locking member.
In one embodiment, the fixing assembly is provided with a first side wall and a second side wall, the first side wall and the second side wall are arranged at intervals to form a containing groove, the containing groove is used for containing the movable part, and the locking piece can penetrate through the first side wall and be connected with the inserting hole in an inserting mode.
In one embodiment, the locking assembly further includes an elastic member and a stopper, the elastic member and the stopper are disposed on the fixing assembly and located in the receiving groove, and when the locking member is disengaged from the insertion hole, an elastic force generated by the elastic member pushes the stopper to extend out, so as to stop the locking member from passing through the first sidewall.
In one embodiment, the second locking link includes a first fixed shaft fixedly connected to the fixed assembly, the second locking link includes opposite first and second connecting ends, the first locking link is connected to the first connecting end, and the third locking link is connected to the second connecting end.
In one embodiment, the rotating assembly includes a first transmission link rotatably connected between the driving assembly and the second transmission link, a second transmission link connected between the first transmission link and the third transmission link, and a third transmission link rotatably connected to the fixing assembly.
In one embodiment, the second transmission connecting rod comprises a second fixing shaft fixedly connected to the fixing component, the second transmission connecting rod comprises a first transmission end and a second transmission end which are opposite to each other, the first transmission end is rotatably connected to the second fixing shaft, the second transmission end is connected to the third transmission connecting rod, and the first transmission connecting rod is connected between the first transmission end and the second transmission end.
In a second aspect, embodiments of the present application further provide a folding wing, where the folding wing includes a hub, a blade, and the folding mechanism according to the first aspect, the fixed component is connected to the hub, and the movable component is connected to the blade; alternatively, the fixed component is attached to the blade and the movable component is attached to the hub.
In one embodiment, there are a plurality of folding mechanisms and a plurality of blades, each folding mechanism being connected between the hub and one of the blades.
In one embodiment, the folding wing further comprises a paddle clip fixedly connected to the movable assembly and the blade.
In a third aspect, an embodiment of the present application further provides an aircraft, where the aircraft includes an aircraft body and the folding wing as described in the second aspect, and the folding wing is disposed on the aircraft body.
Compared with the prior art, the folding mechanism, the folding wing and the aircraft provided by the embodiment of the application have the advantages that the driving assembly of the folding mechanism is in transmission connection with the locking assembly to drive the locking assembly to be selectively connected with or separated from the movable part, the driving assembly is also in transmission connection with the transmission assembly to drive the transmission assembly to move so as to drive the rotary connecting part to rotate relative to the fixed assembly, the movement of the locking assembly and the transmission assembly is completed through the action of the driving assembly, the rotary connecting part can rotate relative to the fixed assembly, the folding mechanism can be switched between the unfolding state and the folding state, the folding mechanism can be locked in the unfolding state, the fixed assembly is prevented from being separated from the movable assembly, the stability of the folding mechanism is greatly enhanced, meanwhile, the folding mechanism is small in size, light in weight and compact in structure, and the occupied space of a rotor wing is reduced, and the structure is simple, and the processing and manufacturing cost of the rotor wing is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a folding mechanism provided in the present application from a single viewing angle in an unfolded state.
Fig. 2 is a schematic view of the folding mechanism provided in fig. 1 in a folded state.
Fig. 3 is a schematic view of the folding mechanism provided in fig. 1 in an alternative view when in an unfolded state.
Fig. 4 is a schematic view of the folding mechanism provided in fig. 1 in a further perspective view in an unfolded state.
Fig. 5 is a schematic view of the folding mechanism provided in fig. 1 with the latch assembly in an unlocked state.
Fig. 6 is a schematic structural view of the folding mechanism provided in fig. 1 when switched from the unfolded state to the folded state.
Fig. 7 is a schematic view of the folding mechanism provided in fig. 1 in a folded state.
Fig. 8 is a schematic structural diagram of a folding wing provided in an embodiment of the present application in an unfolded state.
Fig. 9 is a schematic view of the folding wing provided in fig. 8 in a folded state.
FIG. 10 is a schematic structural diagram of an aircraft provided in an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 and fig. 2, a folding mechanism 100 provided in the present application is applied to a foldable rotor device, the folding mechanism 100 includes a fixed component 110 and a movable component 120, which are opposite to each other, a locking component 130, a transmission component 140, and a driving component 150, the movable component 120 includes a rotating connection portion 121 and a movable portion 122, the rotating connection portion 121 is rotatably connected to the fixed component 110, the movable portion 122 is selectively connected to or separated from the fixed component 110, the locking component 130 is selectively connected to or separated from the movable portion 122, the transmission component 140 is connected to the rotating connection portion 121, the driving component 150 is disposed on the fixed component 110 and is in transmission connection with the locking component 130 to drive the locking component 130 to be selectively connected to or separated from the movable portion 122, the driving component 150 is further in transmission connection with the transmission component 140 to drive the transmission component 140 to move, the movement of the transmission component 140 is used to drive the rotating connection portion 121 to rotate relative to the fixed component 110, to selectively connect or disconnect the movable portion 122 to the fixed component 110, and the driving component 150 is further used to connect to a power component of the foldable rotor device; wherein the fixed component 110 is used for connecting to a hub of the foldable rotor device, and the movable component 120 is connected to a blade of the foldable rotor device; alternatively, fixed component 110 is adapted to be attached to a blade of a foldable rotor device and movable component 120 is attached to a hub of the foldable rotor device. .
In this embodiment, the foldable rotor device refers to a rotor device in which a rotor can be folded, and the foldable rotor device is provided with a folding mechanism 100 so that the rotor can be folded, and the foldable rotor device includes a blade and a hub, and the folding mechanism 100 is disposed between the blade and the hub so that the blade can be folded with respect to the hub.
The folding mechanism 100 comprises an unfolding state and a folding state, when the folding mechanism 100 is in the unfolding state, the movable assembly 120 and the fixed assembly 110 are approximately in the same straight line, so that the blades are unfolded, and the rotor wing can normally take off; that is, when the folding mechanism 100 is in the folded state, the movable assembly 120 is disposed at an angle to the fixed assembly 110, and the rotor blade is folded. In the present embodiment, when the folding mechanism 100 is in the folded state, the angle between the movable assembly 120 and the fixed assembly 110 may be 90 °. In other embodiments, the angle between the movable member 120 and the fixed member 110 may be any angle between 0-180 °.
When the folding mechanism 100 is in the folded state, the folding direction of the folding mechanism 100 may be arbitrarily set. In the present embodiment, the folding mechanism 100 is a side folding, i.e., the folding mechanism 100 can be folded in a horizontal plane. In other embodiments, the folding mechanism 100 can be folded in other directions, for example, the folding mechanism 100 can also be folded in a vertical plane, and is not limited in this respect.
Referring to fig. 3 and 4, in the present embodiment, the folding mechanism 100 includes a fixing component 110, the fixing component 110 may be substantially cylindrical, and the fixing component 110 is adapted to be connected to a wing hub system, wherein the wing hub system can convert power provided by an engine of a helicopter into lift force of blades, so that the helicopter can fly normally.
The fixed component 110 is provided with a first side wall 111 and a second side wall 112, the first side wall 111 and the second side wall 112 are oppositely arranged, wherein the first side wall 111 and the second side wall 112 are arranged at intervals to form an accommodating groove 113, the accommodating groove 113 is used for accommodating the movable part 122, the movable part 122 is selectively inserted into the accommodating groove 113 or far away from the accommodating groove 113, specifically, when the fixed component and the movable part 122 are relatively unfolded, namely the folding mechanism 100 is in an unfolded state, the movable component 120 and the fixed component 110 are approximately on the same straight line, and at least part of the movable part 122 is inserted into the accommodating groove 113; when the fixed component and the movable part 122 are folded relatively, i.e. the folding mechanism 100 is in a folded state, the movable component 120 is perpendicular to the fixed component 110 relatively, and the movable part 122 is separated from the receiving groove 113.
The folding mechanism 100 further comprises a driving assembly 150, and the driving assembly 150 is adapted to provide kinetic energy to the locking assembly 130 and the transmission assembly 140 and transmit the kinetic energy, thereby implementing the automatic folding function of the folding mechanism 100.
Referring to fig. 5 and 6, the driving assembly 150 includes a driving member 152, and the driving member 152 is disposed on the fixing assembly 110. The driving member 152 reciprocates linearly during operation, thereby providing an effective driving force for cyclic reciprocation, which drives the transmission assembly 140 and the locking assembly 130 to move. In this embodiment, the driving assembly 150 is a linear motor, wherein the linear motor has a simple structure and a small volume, can be driven by the least number of parts, is easy to maintain, has no mechanical contact during movement due to less parts, greatly reduces the abrasion of the parts, only needs little or no maintenance, has a longer service life, and simultaneously has stable movement, provides a very wide rotating speed operation range, and meets the requirements of higher precision and stability of the aircraft. Of course, in other embodiments, the driving element 152 may also be a hydraulic driving element or other driving elements 152 capable of providing a reciprocating linear motion, and is not limited in particular.
The driving assembly 150 includes a driving link 151, the driving link 151 may be substantially elongated, and the driving link 151 is connected to a driving member 152, and the driving link 151 is further connected to the transmission assembly 140 and the locking assembly 130. The drive link 151 is capable of converting the linear motion provided by the drive member 152 into a curvilinear motion. The driving link 151 includes a first rotating shaft 153, a second rotating shaft 154 and a third rotating shaft 155, wherein the driving link 151 is rotatably connected to the transmission assembly 140 through the first rotating shaft 153, the driving link 151 is rotatably connected to the driving member 152 through the second rotating shaft 154, and the driving link 151 is connected to the locking assembly 130 through the third rotating shaft 155.
In this embodiment, the driving element 152 may be connected to the middle of the driving link 151, the transmission assembly 140 and the locking assembly 130 are connected to two opposite sections of the driving link 151, and the driving link 151 is rotatably connected to the driving element 152, the transmission assembly 140 and the locking assembly 130, and the driving element 150 may be connected by a turnbuckle, a screw or other connecting structures commonly found in mechanical engineering manuals, so as to simplify the connecting structure of the driving element 150, and facilitate manufacturing and assembly.
The folding mechanism 100 further includes a locking assembly 130, the locking assembly 130 having a locked state and an unlocked state, the movable portion 122 of the locking assembly 130 being coupled when the locking assembly 130 is in the locked state, and the locking assembly 130 being decoupled from the movable portion 122 when the locking assembly 130 is in the unlocked state.
The locking assembly 130 includes a locking member 131, the locking member 131 may be substantially rod-shaped, the movable portion 122 is provided with an insertion hole 123, the locking member 131 can pass through the first sidewall 111 and be inserted into the insertion hole 123, and the locking member 131 is selectively inserted into the insertion hole 123 or separated from the insertion hole 123. When the locking member 131 is inserted into the insertion hole 123, the locking member 131 locks the movable portion 122 to prevent the movable portion 122 from rotating relative to the fixed component 110, and when the locking member 131 is disengaged from the insertion hole 123, the locking member 131 no longer locks the movable portion 122, and the movable portion 122 can rotate relative to the fixed component 110.
The locking assembly 130 further includes a first locking link 132, a second locking link 133, and a third locking link 134, the first locking link 132 being rotatably connected between the driving assembly 150 and the second locking link 133, the second locking link 133 being rotatably connected between the first locking link 132 and the third locking link 134, and the third locking link 134 being connected to the locking member 131.
In this embodiment, the first locking link 132 may be substantially elongated, and the first locking link 132 is connected to one end of the driving link 151 and transmits the driving force generated by the driving member 152. The first locking link 132 is rotatably connected to the driving link 151 through a third rotating shaft 155, and the locking assembly 130 further includes a fourth rotating shaft 137, and the first locking link 132 is rotatably connected to the second locking link 133 through the fourth rotating shaft 137.
The second locking link 133 may have a substantially "v" shaped configuration, and the second locking link 133 is rotatably connected to the first locking link 132, for example, the second locking link 133 is connected to an end of the first locking link 132 away from the driving link 151. The second locking link 133 is rotatably connected to the fixing member 110 to transmit the driving force generated by the driving member 152. The locking assembly 130 further includes a fifth rotating shaft 138, and the second locking link 133 is rotatably connected to the third locking link 134 via the fifth rotating shaft 138.
The second locking link 133 includes a first fixing shaft 1333, the first fixing shaft 1333 is fixedly connected to the fixing assembly 110, the second locking link 133 can rotate around the first fixing shaft 1333, the second locking link 133 includes a first connecting end 1331 and a second connecting end 1332 which are opposite, the first locking link 132 is connected to the first connecting end 1331, and the third locking link 134 is connected to the second connecting end 1332.
The third locking link 134 may have a substantially arc-shaped structure, the third locking link 134 is rotatably connected to the second locking link 133, one end of the third locking link 134 is rotatably connected to one end of the second locking link 133 away from the first locking link 132, the other end of the third locking link 134 is rotatably connected to the locking member 131, and the third locking link 134 transmits the driving force generated by the driving member 152 to drive the locking member 131 to move. The locking assembly 130 further includes a sixth rotating shaft 139, and the third locking link 134 is rotatably connected to the locking member 131 via the sixth rotating shaft 139.
The locking assembly 130 includes a stopper 136, the stopper 136 may have a substantially cylindrical structure, and the position of the stopper 136 is matched with the position of the locking member 131, when the locking member 131 is disengaged from the insertion hole 123, the stopper 136 stops the locking member 131 from entering the receiving slot 113.
The locking assembly 130 further includes an elastic member 135, the elastic member 135 and the stopper 136 are disposed on the fixing assembly 110 and located in the receiving slot 113, when the locking member 131 is disengaged from the inserting hole 123, the elastic force generated by the elastic member 135 pushes the stopper 136 to extend out, so as to stop the locking member 131 penetrating through the first sidewall 111, and prevent the locking member 131 from entering the first sidewall 111 when the folding mechanism 100 is in the folded state, thereby affecting the switching between the unfolded state and the folded state of the folding mechanism 100. As an example, the elastic member 135 is a spring.
Referring to fig. 3 and 5, when the folding mechanism 100 is in the unfolded state, the driving element 152 is at the compressed extreme position, the movable element 120 cannot rotate relative to the fixed element 110 because the movable element 120 is locked by the locking element 130, the driving element 152 is pushed leftward, and the transmission element 140 is locked by the locking element 130 and cannot move, so that the driving link 151 moves clockwise around the first rotating shaft 153, and further pushes the first locking link 132 to move, and further pushes the second locking link 133 to move counterclockwise around the first fixed shaft 1333, so as to pull the third locking link 134, and finally, the driving force of the driving element 152 is transmitted to the locking element 131, so that the locking element 131 moves linearly and disengages from the receiving slot 113, and the movable portion 122 is no longer locked.
When the locking assembly 130 is switched from the unlocking state to the locking state, the driving member 152 is in the extension state and starts to retract, the driving member 152 pulls the driving link 151, and the driving link 151 makes a counterclockwise motion around the first rotating shaft 153, and then pulls the first locking link 132 to move, and then pushes the second locking link 133 to make a clockwise motion around the first fixing shaft 1333, so as to push the third locking link 134, and finally, the driving force of the driving member 152 is transmitted to the locking member 131, so that the locking member 131 makes a linear motion and is inserted into the receiving slot 113, and the movable portion 122 is locked.
The rotating assembly includes a first transmission link 141, a second transmission link 142 and a third transmission link 143, the first transmission link 141 is rotatably connected between the driving assembly 150 and the second transmission link 142, the second transmission link 142 is connected between the first transmission link 141 and the third transmission link 143, and the third transmission link 143 is rotatably connected to the fixing assembly 110.
In this embodiment, the first transmission link 141 may be substantially long, and the first transmission link 141 is connected to one end of the driving link 151 and transmits the driving force generated by the driving element 152. The first transmission link 141 is rotatably connected to the driving link 151 through a first rotating shaft 153, and the transmission assembly 140 further includes a seventh rotating shaft 144, and the first transmission link 141 is rotatably connected to the second transmission link 142 through the seventh rotating shaft 144.
The second transmission link 142 may be substantially in an elongated structure, and the second transmission link 142 is rotatably connected to the first transmission link 141, and the second transmission link 142 is connected to an end of the first transmission link 141 away from the driving link 151. The second transmission link 142 is rotatably connected to the fixing element 110 to transmit the driving force generated by the driving element 152. The transmission assembly 140 further includes an eighth rotating shaft 145, and the second transmission link 142 is rotatably connected to the third transmission link 143 through the eighth rotating shaft 145.
The second transmission link 142 includes a second fixed shaft 1423, the second fixed shaft 1423 is fixedly connected to the fixing assembly 110, the second transmission link 142 includes a first transmission end 1421 and a second transmission end 1422 opposite to each other, the first transmission end 1421 is rotatably connected to the second fixed shaft 1423, the second transmission end 1422 is connected to the third transmission link 143, and the first transmission link 141 is connected between the first transmission end 1421 and the second transmission end 1422.
The third transmission link 143 may be substantially in an elongated structure, the third transmission link 143 is rotatably connected to the second transmission link 142, one end of the third transmission link 143 is rotatably connected to one end of the second transmission link 142 away from the first transmission link 141, the other end of the third transmission link 143 is rotatably connected to the movable portion 122, and the third transmission link 143 transmits the driving force generated by the driving element 152 to drive the movable portion 122 to move. The transmission assembly 140 further includes a ninth rotating shaft 146, and the third transmission link 143 is rotatably connected to the movable portion 122 through the ninth rotating shaft 146.
Referring to fig. 6 and 7, when the folding mechanism 100 is switched from the unfolded state to the folded state, the locking assembly 130 is first switched from the locked state to the unlocked state, specifically, when the folding mechanism 100 is in the unfolded state, the driving member 152 is in the compressed extreme position, since the movable member 120 is locked by the locking member 130, the movable member 120 cannot rotate relative to the fixed member 110, the driving member 152 is pushed to the left, since the transmission assembly 140 is locked by the locking assembly 130 and cannot move, the driving link 151 moves clockwise about the first rotating shaft 153, to push the first locking link 132 to move, thereby pushing the second locking link 133 to move counterclockwise around the first fixing shaft 1333, pulling the third locking link 134, and finally transmitting the driving force of the driving member 152 to the locking member 131, so that the locking member 131 moves linearly and is separated from the receiving groove 113, and the movable portion 122 is no longer locked.
After the locking assembly 130 is unlocked, the movable assembly 120 is not locked, and since the second locking link 133 rotates counterclockwise to the maximum angle, the first locking link 132, the second locking link 133 and the third locking link 134 do not move any more, the driving member 152 continues to extend and push the driving link 151, at this time, the driving link 151 moves counterclockwise around the third rotating shaft 155, and then pushes the first driving link 141, since the first driving link 141 is connected to the second driving link 142 in a rotating manner, and then pushes the second driving link 142 to move clockwise around the second fixed shaft 1423, and thus pushes the third driving link 143, and finally, the driving force from the driving member 152 is transmitted to the movable portion 122, and the movable portion 122 is pushed to rotate to a proper angle around the fixed assembly 110, and since the movable portion 122 is separated from the receiving groove 113, the stopper 136 extends to the receiving groove 113 under the action of the elastic member 135 and stops the locking member 131, the folding process of the folding mechanism 100 is completed.
When the folding mechanism 100 is switched from the folded state to the unfolded state, since the stopper 136 is in the released state, the stopper 131 stops, the driving element 152 is in the extended state and starts to retract, since the stopper 131 is stopped, the first locking link 132, the second locking link 133 and the third locking link 134 are in the locked state and do not move any more, the driving element 152 retracts and pulls the driving link 151, at this time, the driving link 151 moves clockwise around the third rotating shaft 155, and further pulls the first transmission link 141, since the first transmission link 141 is rotationally connected to the second transmission link 142, further pushes the second transmission link 142 to move counterclockwise around the second fixed shaft 1423, and further pulls the third transmission link 143, finally, the driving force from the driving element 152 is transmitted to the movable portion 122, and the movable portion 122 is pulled to rotate around the fixed assembly 110 to be collinear with the fixed assembly 110, meanwhile, as the movable portion 122 enters the receiving groove 113, the stopper 136 is retracted into the receiving groove 113 under the action of the movable portion 122, and the locking member 131 is no longer stopped.
At this time, since the stopper 136 no longer stops the locking member 131, and the movable portion 122 abuts against the fixed assembly 110, the transmission assembly 140 no longer moves, that is, the first transmission link 141, the second transmission link 142, and the third transmission link 143 no longer move, when the locking assembly 130 is switched from the unlocked state to the locked state, the driving member 152 continues to retract, the driving member 152 pulls the driving link 151, and makes the driving link 151 perform counterclockwise motion around the first rotating shaft 153, and further pulls the first locking link 132 to move, and then pushes the second locking link 133 to perform clockwise motion around the first fixed shaft 1333, so as to push the third locking link 134, and finally, the driving force of the driving member 152 is transmitted to the locking member 131, so that the locking member 131 performs linear motion and is inserted into the receiving slot 113, and the movable portion 122 is locked, and the unfolding of the folding mechanism 100 is completed.
In this embodiment, each folding mechanism 100 includes two sets of driving assemblies 150, two sets of transmission assemblies 140, and two sets of locking assemblies 130, and the two sets of driving assemblies 150, the two sets of transmission assemblies 140, and the two sets of locking assemblies 130 are disposed opposite to each other, so as to ensure that the movable assembly 120 keeps stable when moving relative to the fixed assembly 110.
The folding mechanism 100 is integrated into a modular unit, the installation is simple and convenient, the movement of the locking assembly 130 and the transmission assembly 140 is completed by the action of one driving assembly 150, the weight and the control mode are greatly optimized, and the integral stability of the folding mechanism 100 is improved.
The folding mechanism 100 provided by the embodiment of the application, the driving assembly 150 of the folding mechanism 100 is in transmission connection with the locking assembly 130 to drive the locking assembly 130 to be selectively connected with or separated from the movable portion 122, the driving assembly 150 is also in transmission connection with the transmission assembly 140 to drive the transmission assembly 140 to move, so as to drive the rotation connecting portion 121 to rotate relative to the fixed assembly 110, and by the action of the driving assembly 150, the movement of the two assemblies, namely the locking assembly 130 and the transmission assembly 140, is completed, so that the rotation connecting portion 121 can rotate relative to the fixed assembly 110, so that the folding mechanism 100 is switched between the unfolding state and the folding state, and the folding mechanism 100 can be locked in the unfolding state, so as to prevent the fixed assembly 110 from being separated from the movable assembly 120, thereby greatly enhancing the stability of the folding mechanism 100, and meanwhile, the folding mechanism 100 is small in size, light in weight and compact in structure.
Referring to fig. 8 and 9, the present embodiment further provides a folding wing 200, where the folding wing 200 includes a hub 210, a blade 220, and a folding mechanism 100, the fixed component 110 is connected to the hub 210, and the movable component 120 is connected to the blade 220; alternatively, stationary assembly 110 is attached to blades 220 and movable assembly 120 is attached to hub 210.
In the present embodiment, the number of the blades 220 is two or more, and the number of the folded wings 200 is the same as that of the blades 220.
The number of folding mechanisms 100 and blades 220 is plural, and each folding mechanism 100 is connected between hub 210 and one blade 220, thereby enabling each blade 220 to be folded with respect to hub 210.
The folding wing 200 further comprises a paddle clip 230, wherein the paddle clip 230 is fixedly connected to the movable assembly 120 and the paddle 220, so as to ensure the stability of the connection of the paddle 220, and ensure that the paddle 220 can be stably connected to the folding mechanism 100 without generating large vibration.
In summary, the folding wing 200 provided in the embodiment of the present application is drivingly connected to the locking assembly 130 through the driving assembly 150 of the folding mechanism 100, so as to drive the locking assembly 130 to selectively connect with or separate from the movable portion 122, the driving assembly 150 is further in transmission connection with the transmission assembly 140, so as to drive the transmission assembly 140 to move, thereby driving the rotation connection part 121 to rotate relative to the fixing component 110, completing the movement of the locking component 130 and the transmission component 140 through the action of the driving component 150, enabling the rotation connection part 121 to rotate relative to the fixing component 110, therefore, the folding mechanism 100 can be switched between the unfolding state and the folding state, and the folding mechanism 100 can be locked in the unfolding state, so that the fixed component 110 is prevented from being separated from the movable component 120, the stability of the folding mechanism 100 is greatly enhanced, and meanwhile, the folding mechanism 100 is small in size, light in weight and compact in structure.
Referring to fig. 10, an aircraft 300 is further provided in the embodiment of the present application, where the aircraft 300 includes an aircraft body 310 and a foldable wing 200, and the foldable wing 200 is disposed on the aircraft body 310.
In summary, the aircraft 300 provided in the embodiment of the present application is driven by the driving assembly 150 of the folding mechanism 100 and the locking assembly 130, so as to drive the locking assembly 130 to selectively connect with or separate from the movable portion 122, the driving assembly 150 is further in transmission connection with the transmission assembly 140, so as to drive the transmission assembly 140 to move, thereby driving the rotation connection part 121 to rotate relative to the fixing component 110, completing the movement of the locking component 130 and the transmission component 140 through the action of the driving component 150, enabling the rotation connection part 121 to rotate relative to the fixing component 110, therefore, the folding mechanism 100 can be switched between the unfolding state and the folding state, and the folding mechanism 100 can be locked in the unfolding state, so that the fixed component 110 is prevented from being separated from the movable component 120, the stability of the folding mechanism 100 is greatly enhanced, and meanwhile, the folding mechanism 100 is small in size, light in weight and compact in structure.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. A folding mechanism for use with a foldable rotor device, the folding mechanism comprising:
a fixing assembly;
the movable assembly comprises a rotating connecting part and a movable part which are connected, the rotating connecting part is rotatably connected to the fixed assembly, and the movable part is selectively connected with or separated from the fixed assembly;
a locking assembly selectively coupled to or decoupled from the movable portion;
the transmission assembly is connected to the rotating connecting part; and
the driving assembly is arranged on the fixed assembly and is in transmission connection with the locking assembly so as to drive the locking assembly to be selectively connected with or separated from the movable part, the driving assembly is also in transmission connection with the transmission assembly and is used for driving the transmission assembly to move, the movement of the transmission assembly is used for driving the rotating connecting part to rotate relative to the fixed assembly so as to drive the movable part to be selectively connected with or separated from the fixed assembly, and the driving assembly is also used for being connected with a power assembly of the foldable rotor wing device;
wherein the fixed component is used for connecting to a hub of the foldable rotor device, and the movable component is connected to a blade of the foldable rotor device; alternatively, the fixed component is adapted to be attached to a blade of the foldable rotor device and the movable component is attached to a hub of the foldable rotor device.
2. The folding mechanism of claim 1 wherein said drive assembly includes a drive link and a drive member, said drive member being disposed on said stationary assembly, said drive link being connected to said drive member, said drive link being further connected to said transmission assembly and said latch assembly.
3. The folding mechanism of claim 1 wherein said locking assembly includes a locking member, said movable portion having an insertion aperture, said locking member selectively being insertable into and removable from said insertion aperture.
4. The folding mechanism of claim 3 wherein said latch assembly further includes a first latch link, a second latch link, and a third latch link, said first latch link being pivotally coupled between said drive assembly and said second latch link, said second latch link being pivotally coupled between said first latch link and said third latch link, said third latch link being coupled to said latch member.
5. The folding mechanism of claim 3 wherein said stationary assembly has a first side wall and a second side wall, said first side wall and said second side wall being spaced apart to define a receiving slot for receiving said movable portion, said locking member being insertable through said first side wall and into said insertion aperture.
6. The folding mechanism of claim 5, wherein the locking assembly further includes an elastic member and a stopper, the elastic member and the stopper are disposed on the fixing assembly and located in the receiving slot, and when the locking member is disengaged from the insertion hole, the elastic force generated by the elastic member pushes the stopper to extend out, so as to stop the locking member from passing through the first sidewall.
7. The folding mechanism of claim 4 wherein said second locking link includes a first fixed shaft fixedly coupled to said stationary assembly, said second locking link includes first and second opposing link ends, said first locking link is coupled to said first link end, and said third locking link is coupled to said second link end.
8. The folding mechanism of claim 1 wherein said rotating assembly includes a first drive link rotatably connected between said drive assembly and said second drive link, a second drive link connected between said first drive link and said third drive link, and a third drive link rotatably connected to said stationary assembly.
9. The folding mechanism of claim 8 wherein said second drive link includes a second fixed shaft fixedly attached to said stationary component, said second drive link including opposite first and second drive ends, said first drive end rotatably attached to said second fixed shaft and said second drive end attached to said third drive link, said first drive link attached between said first and second drive ends.
10. A folding wing comprising a hub, a blade, and a folding mechanism as claimed in any one of claims 1 to 9, said fixed component being attached to said hub and said movable component being attached to said blade; alternatively, the fixed component is attached to the blade and the movable component is attached to the hub.
11. The folding wing of claim 10, wherein the number of folding mechanisms and blades is plural, each folding mechanism being connected between the hub and one of the blades.
12. The folding wing of claim 10, further comprising a paddle clip fixedly attached to the movable assembly and the blade.
13. An aircraft, characterized in that the aircraft comprises an aircraft body and a folding wing as claimed in any of claims 10 to 12, which folding wing is arranged on the aircraft body.
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| CN202111642827.9A CN114193989B (en) | 2021-12-29 | 2021-12-29 | Folding mechanism, folding wing and aircraft |
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| CN202111642827.9A CN114193989B (en) | 2021-12-29 | 2021-12-29 | Folding mechanism, folding wing and aircraft |
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| CN114193989B CN114193989B (en) | 2024-02-20 |
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| CN113511328B (en) * | 2021-08-24 | 2022-12-20 | 广东汇天航空航天科技有限公司 | Wing folding mechanism and hovercar |
| CN113753231A (en) * | 2021-10-11 | 2021-12-07 | 广东汇天航空航天科技有限公司 | Aircraft and coaxial dual-rotor assembly |
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|---|---|
| CN114193989B (en) | 2024-02-20 |
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