CN114193989B - Folding mechanism, folding wing and aircraft - Google Patents
Folding mechanism, folding wing and aircraft Download PDFInfo
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- CN114193989B CN114193989B CN202111642827.9A CN202111642827A CN114193989B CN 114193989 B CN114193989 B CN 114193989B CN 202111642827 A CN202111642827 A CN 202111642827A CN 114193989 B CN114193989 B CN 114193989B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 87
- 230000005540 biological transmission Effects 0.000 claims abstract description 111
- 230000033001 locomotion Effects 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000009434 installation 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
- 238000010586 diagram Methods 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
- 230000004048 modification Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Transmission Devices (AREA)
Abstract
The application provides a folding mechanism is applied to collapsible rotor device, folding mechanism includes relative fixed subassembly and movable subassembly, locking subassembly, drive assembly and actuating unit, movable subassembly is including rotating connecting portion and movable part, it connects in fixed subassembly rotationally to rotate connecting portion, movable part selectively is connected or separates with fixed subassembly, locking subassembly selectively is connected or separates with movable part, drive assembly connects in rotating connecting portion, actuating unit sets up in fixed subassembly, be connected with the locking subassembly transmission, in order to drive locking subassembly selectively with movable part connection or separation, actuating unit still is connected with the drive assembly transmission, be used for driving the drive assembly and remove, the removal of drive assembly is used for driving and rotates connecting portion relative fixed subassembly rotation, in order to drive movable part selectively with fixed subassembly connection or separation, actuating unit still is used for being connected with collapsible rotor device's power pack. The application also provides a folding wing and an aircraft.
Description
Technical Field
The application relates to the technical field of folding, in particular to a folding mechanism, a folding wing and an aircraft.
Background
At present, the size of a rotor blade of a helicopter type aircraft is generally larger, a large space is required in the storage or moving process, the existing helicopter is generally designed to be foldable in order to reduce the occupied space of the blade, namely, when the helicopter is not used, the blade is folded and retracted, the space occupancy rate is reduced, and when the helicopter is used, the blade is unfolded for flying. The folding structure of the rotor wing comprises an automatic folding scheme and a manual folding scheme. The automatic folding scheme realizes the folding of the rotor through the combination of a worm gear structure, a control unit and a relay, however, the automatic folding structure is complex, the rotor is required to be folded through the cooperation of a mechanical structure and a corresponding sensor, the manufacturing cost is high, the number of electrical elements is large, the complexity of a control system and the installation is increased, and the manual folding scheme is troublesome to operate.
Therefore, it is a problem of the art to provide an automatic folding system for a rotor helicopter that is simple in structure, low in manufacturing cost, few in electrical control elements, easy to install and control.
Disclosure of Invention
An object of the present application is to provide a folding mechanism, a folding wing and an aircraft, so as to solve the above problems. The above object is achieved by the following technical solutions.
In a first aspect, an embodiment of the present application provides a folding mechanism applied to a foldable rotor device, where the folding mechanism includes a fixed component and a movable component that are opposite to each other, a locking component, a transmission component, and a driving component, where the movable component includes a rotation connection portion and a movable portion, the rotation connection 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 rotation connection portion, the driving component is disposed on the fixed component and is in transmission connection with the locking component so as to drive the locking component to be selectively connected to or separated from the movable portion, the driving component is also in transmission connection with the transmission component so as to drive the transmission component to move, and the movement of the transmission component is used to drive the rotation connection portion to rotate relative to the fixed component so as to drive the movable portion to be selectively connected to or separated from the fixed component, and the driving component is also used to be connected to a power component of the foldable rotor device; wherein the fixed component is used for being connected with a hub of the foldable rotor wing device, and the movable component is connected with a blade of the foldable rotor wing device; alternatively, the fixed assembly is adapted to be coupled to a blade of the foldable rotor assembly and the movable assembly is coupled to a hub of the foldable rotor assembly.
In one embodiment, the driving assembly comprises a driving connecting rod and a driving piece, the driving piece is arranged on the fixing assembly, the driving connecting rod is connected with the driving piece, and the driving connecting rod is further connected with 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 or separated from the plug hole.
In one embodiment, the locking assembly further comprises a first locking link, a second locking link, and a third locking link, the first locking link being rotatably connected between the drive assembly and the second locking link, the second locking link being rotatably connected between the first locking link and the third locking link, the third locking link being connected to the locking member.
In one embodiment, the fixing component 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 inserted into the inserting hole.
In an embodiment, the locking assembly further includes an elastic member and a stop member, the elastic member and the stop member are disposed in the fixing assembly and located in the accommodating groove, and when the locking member is separated from the plugging hole, the elastic force generated by the elastic member pushes the stop member to extend out so as to stop the locking member from penetrating through the first side wall.
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 connection ends, the first locking link is connected to the first connection end, and the third locking link is connected to the second connection end.
In one embodiment, the rotating assembly includes a first drive link, a second drive link, and a third drive link, the first drive link being rotatably coupled between the drive assembly and the second drive link, the second drive link being coupled between the first drive link and the third drive link, the third drive link being rotatably coupled to the stationary assembly.
In one embodiment, the second drive link includes a second stationary shaft fixedly connected to the stationary assembly, the second drive link includes opposite first and second drive ends, the first drive end is rotatably connected to the second stationary shaft, and the second drive end is connected to the third drive link, the first drive link being connected between the first and second drive ends.
In a second aspect, embodiments of the present application further provide a folding wing, where the folding wing includes a hub, a blade, and a folding mechanism according to the first aspect, a fixed component is connected to the hub, and a movable component is connected to the blade; alternatively, the stationary component is connected to the blade and the movable component is connected to the hub.
In one embodiment, the number of folding mechanisms and blades is multiple, each folding mechanism being connected between the hub and one blade.
In one embodiment, the folding wing further comprises a blade clip fixedly connected to the movable assembly and the blade.
In a third aspect, embodiments of the present application further provide an aircraft, the aircraft including an aircraft body and a folding wing according to the second aspect, the folding wing being disposed on the aircraft body.
Compared with the prior art, folding mechanism, folding wing and aircraft that this application embodiment provided, folding mechanism's drive assembly and locking subassembly transmission are connected, with drive locking subassembly selectively with movable part connection or separation, drive assembly still is connected with the drive assembly transmission, in order to drive assembly and remove, thereby drive the rotation connecting portion and rotate relative fixed subassembly, through the action of drive assembly, accomplish the motion of locking subassembly and two subassemblies of drive assembly, make the rotation connecting portion can rotate relative fixed subassembly, thereby make folding mechanism switch between expansion state and folding state, also can lock folding mechanism when expansion state, prevent fixed subassembly and movable subassembly break away from, folding mechanism's stability has been strengthened greatly, simultaneously, folding mechanism is small, light in weight and compact structure, reduce the occupation space of rotor, and simple structure, reduce the manufacturing cost of rotor.
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 will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a folding mechanism provided in the present application in an unfolded state at a single viewing angle.
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 unfolded state, from another view.
Fig. 4 is a schematic view of the folding mechanism provided in fig. 1 in an unfolded state, from yet another perspective.
Fig. 5 is a schematic view of the folding mechanism provided in fig. 1 when the locking assembly is in an unlocked state.
Fig. 6 is a schematic structural diagram of the folding mechanism provided in fig. 1 when the folding mechanism is switched from an unfolded state to a 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 view 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 view of an aircraft provided in an embodiment of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In order to better understand the technical solutions of the present application, the following will make a clear and complete description of the technical solutions of the embodiments of the present application with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
Referring to fig. 1 and 2, the folding mechanism 100 provided in the embodiment of the present application is applied to a foldable rotor device, where the folding mechanism 100 includes a fixed component 110 and a movable component 120, 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 also in transmission connection with the transmission component 140 to drive the transmission component 140 to move, the transmission component 140 is moved to drive the rotating connection portion 121 to rotate relative to the fixed component 110 to drive the movable portion 122 to be selectively connected to or separated from the fixed component 110, and the driving component 150 is also used to be connected to a power component of the foldable rotor device; wherein the fixed assembly 110 is configured to be coupled to a hub of a foldable rotor device, and the movable assembly 120 is configured to be coupled to a blade of the foldable rotor device; alternatively, stationary assembly 110 is adapted to be coupled to a blade of a foldable rotor device and movable assembly 120 is coupled to a hub of the foldable rotor device. .
In this embodiment, the foldable rotor device is 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, 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 relative 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 paddles are unfolded, and the rotor wing can take off normally; that is, when folding mechanism 100 is in a folded state, movable assembly 120 is disposed at an angle to fixed assembly 110 and the rotor blade is folded. In this embodiment, the angle between the movable component 120 and the fixed component 110 may be 90 ° when the folding mechanism 100 is in the folded state. In other embodiments, the angle between the movable assembly 120 and the fixed assembly 110 may be any angle between 0-180 °.
The folding direction of the folding mechanism 100 may be arbitrarily set when the folding mechanism 100 is in the folded state. In the present embodiment, the folding mechanism 100 is folded sideways, i.e., the folding mechanism 100 can be folded in a horizontal plane. In other embodiments, the folding mechanism 100 folds in other directions, for example, the folding mechanism 100 may also fold in a vertical plane, which is not particularly limited herein.
Referring to fig. 3 and 4, in the present embodiment, the folding mechanism 100 includes a fixing assembly 110, where the fixing assembly 110 may be substantially cylindrical, and the fixing assembly 110 is adapted to be connected to a wing hub system, and the wing hub system is capable of converting power provided by an engine of a helicopter into lift force of a blade, so that the helicopter can fly normally.
The fixed assembly 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 a containing groove 113, the containing groove 113 is used for containing the movable part 122, the movable part 122 is selectively inserted into the containing groove 113 or far away from the containing groove 113, specifically, when the fixed assembly and the movable part 122 are oppositely unfolded, namely, when the folding mechanism 100 is in an unfolded state, the movable assembly 120 and the fixed assembly 110 are approximately in the same straight line, and the movable part 122 is at least partially inserted into the containing groove 113; when the fixed component and the movable portion 122 are folded relatively, that is, the folding mechanism 100 is in a folded state, the movable component 120 is perpendicular to the fixed component 110 relatively, and the movable portion 122 is separated from the accommodating groove 113.
The folding mechanism 100 further comprises a drive assembly 150, the drive assembly 150 being adapted to provide kinetic energy to the locking assembly 130 and the transmission assembly 140 and to transfer the kinetic energy, thereby achieving an 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 is in reciprocating linear motion during operation, so as to provide an effective driving force for cyclic reciprocation, thereby driving the transmission assembly 140 and the locking assembly 130 to move. In this embodiment, the driving component 150 is a linear motor, where the linear motor has a simple structure and a small volume, and can realize linear driving with the least parts, and is simple to maintain, and because there are few parts and no mechanical contacts during movement, the abrasion of parts is greatly reduced, little or no maintenance is required, the service life is longer, and meanwhile, the movement is stable, and a very wide rotational speed operation range is provided, so that the device meets the higher precision and stability requirements of the aircraft. Of course, in other embodiments, the driving member 152 may also use a hydraulic transmission or other driving member 152 capable of providing a reciprocating linear motion, which is not particularly limited herein.
The driving assembly 150 includes a driving link 151, the driving link 151 may have a substantially elongated shape, and the driving link 151 is connected to the 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 152 into a curvilinear motion. The driving link 151 includes a first rotation shaft 153, a second rotation shaft 154, and a third rotation shaft 155, wherein the driving link 151 is rotatably connected to the transmission assembly 140 through the first rotation shaft 153, the driving link 151 is rotatably connected to the driving member 152 through the second rotation shaft 154, and the driving link 151 is connected to the locking assembly 130 through the third rotation shaft 155.
In this embodiment, the driving member 152 may be connected to the middle portion of the driving link 151, the transmission assembly 140 and the locking assembly 130 are connected to two opposite segments of the driving link 151, and the driving link 151 is connected to the driving member 152, the transmission assembly 140 and the locking assembly 130 in a rotating manner, and the driving assembly 150 may be connected to the driving assembly 150 through a turnbuckle, a screw or other common connection structure in a mechanical engineering manual, so as to simplify the connection structure of the driving assembly 150, and facilitate production, manufacture and assembly.
The folding mechanism 100 further includes a locking assembly 130, where the locking assembly 130 has a locked state and an unlocked state, the movable portion 122 of the locking assembly 130 is connected when the locking assembly 130 is in the locked state, and the locking assembly 130 is separated 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 a plugging hole 123, the locking member 131 can penetrate through the first sidewall 111 and be plugged into the plugging hole 123, and the locking member 131 is selectively plugged into the plugging hole 123 or separated from the plugging 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 assembly 110, and when the locking member 131 is separated from the insertion hole 123, the locking member 131 does not lock the movable portion 122 any more, and the movable portion 122 can rotate relative to the fixed assembly 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 coupled between the driving assembly 150 and the second locking link 133, the second locking link 133 being rotatably coupled between the first locking link 132 and the third locking link 134, the third locking link 134 being coupled to the locking member 131.
In the present embodiment, the first locking link 132 may have a substantially elongated shape, 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 rotation shaft 155, and the locking assembly 130 further includes a fourth rotation shaft 137, and the first locking link 132 is rotatably connected to the second locking link 133 through the fourth rotation shaft 137.
The second locking link 133 may have a substantially v-shaped structure, 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 remote from the driving link 151. The second locking link 133 is rotatably connected to the fixing assembly 110, and thus transmits the driving force generated by the driving member 152. The locking assembly 130 further includes a fifth rotation shaft 138, and the second locking link 133 is rotatably coupled to the third locking link 134 through the fifth rotation shaft 138.
The second locking link 133 includes a first fixed shaft 1333, the first fixed shaft 1333 is fixedly coupled to the fixing assembly 110, the second locking link 133 is rotatable about the first fixed shaft 1333, the second locking link 133 includes opposite first and second connection ends 1331 and 1332, the first locking link 132 is coupled to the first connection end 1331, and the third locking link 134 is coupled to the second connection end 1332.
The third locking link 134 may have a circular arc 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, and the other end of the third locking link 134 is rotatably connected to the locking member 131, and the third locking link 134 transmits a driving force generated by the driving member 152, thereby driving the locking member 131 to move. The locking assembly 130 further includes a sixth rotation shaft 139, and the third locking link 134 is rotatably coupled to the locking member 131 through the sixth rotation shaft 139.
The locking assembly 130 includes a stopper 136, the stopper 136 may have a 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 separated from the plugging hole 123, the stopper 136 stops the locking member 131 from entering the accommodating groove 113.
The locking assembly 130 further includes an elastic member 135, where the elastic member 135 and the stop member 136 are disposed in the fixing assembly 110 and located in the receiving slot 113, and when the locking member 131 is separated from the inserting hole 123, an elastic force generated by the elastic member 135 pushes the stop member 136 to extend out, so as to stop the locking member 131 from penetrating 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 folded state and the unfolded state of the folding mechanism 100. As one 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 member 152 is in the compressed limit position, since the movable assembly 120 is locked by the locking assembly 130, the movable assembly 120 cannot rotate relative to the fixed assembly 110, the driving member 152 is pushed to the left, and since the transmission assembly 140 is locked by the locking assembly 130 and cannot move, the driving link 151 moves clockwise around the first rotation shaft 153 to push the first locking link 132 to move, and then pushes the second locking link 133 to move counterclockwise around the first fixing shaft 1333 to pull 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 moves linearly and is separated from the accommodating groove 113, and the movable portion 122 is not locked.
When the locking assembly 130 is switched from the unlocked state to the locked state, the driving member 152 is in the extended state and starts to retract, the driving member 152 pulls the driving link 151, and makes the driving link 151 move counterclockwise around the first rotation shaft 153, further pulls the first locking link 132 to move, then pushes the second locking link 133 to move clockwise around the first fixing shaft 1333, thereby pushing the third locking link 134, and finally transmits the driving force of the driving member 152 to the locking member 131, so that the locking member 131 moves linearly and is inserted into the accommodating groove 113, and the movable portion 122 is locked.
The rotation 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 the present embodiment, the first transmission link 141 may have a substantially elongated shape, 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 member 152. The first transmission link 141 is rotatably connected to the driving link 151 through a first rotation shaft 153, and the transmission assembly 140 further includes a seventh rotation shaft 144, and the first transmission link 141 is rotatably connected to the second transmission link 142 through the seventh rotation shaft 144.
The second transmission link 142 may have a substantially 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 remote from the driving link 151. The second transmission link 142 is rotatably connected to the fixing assembly 110, and further transmits the driving force generated by the driving member 152. The transmission assembly 140 further includes an eighth rotation shaft 145, and the second transmission link 142 is rotatably connected to the third transmission link 143 through the eighth rotation shaft 145.
The second transmission link 142 includes a second fixed shaft 1423, the second fixed shaft 1423 is fixedly connected to the fixed 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 a long strip 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, and the other end of the third transmission link 143 is rotatably connected to the movable portion 122, where the third transmission link 143 transmits the driving force generated by the driving member 152, so as 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 firstly 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 limit position, because the movable assembly 120 is locked by the locking assembly 130, the movable assembly 120 cannot rotate relative to the fixed assembly 110, the driving member 152 is pushed to the left, because the transmission assembly 140 is locked by the locking assembly 130 and cannot move, the driving link 151 moves clockwise around the first rotating shaft 153 to push the first locking link 132 to move and push the second locking link 133 to move anticlockwise around the first fixed shaft 1333, the third locking link 134 is pulled, and finally, the driving force of the driving member 152 is transmitted to the locking member 131, so that the locking member 131 moves linearly and is separated from the accommodating 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 the second locking link 133 is rotated counterclockwise to the maximum angle, so that the first locking link 132, the second locking link 133 and the third locking link 134 are not moved any more, the driving member 152 continues to stretch and push the driving link 151, at this time, the driving link 151 moves counterclockwise around the third rotation axis 155, so as to push the first transmission link 141, and the first transmission link 141 is rotatably connected to the second transmission link 142, so as to push the second transmission link 142 to move clockwise around the second fixed axis 1423, so as to push the third transmission link 143, and finally, the driving force from the driving member 152 is transmitted to the movable portion 122, so as to push the movable portion 122 to rotate to a suitable angle around the fixed assembly 110, and meanwhile, as the movable portion 122 is separated from the accommodating groove 113, the stop member 136 extends to the accommodating groove 113 under the action of the elastic member 135, and stops the locking member 131, so as to complete the folding process of the folding mechanism 100.
When the folding mechanism 100 is switched from the folded state to the unfolded state, the stopper 136 is in the released state, the locking member 131 is blocked, the driving member 152 is in the extended state and starts to retract, 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 member 152 retracts and pulls the driving link 151, the driving link 151 moves clockwise around the third rotating shaft 155, the first transmission link 141 is pulled, the first transmission link 141 rotates and is connected to the second transmission link 142, the second transmission link 142 is pushed to move counterclockwise around the second fixed shaft 1423, the third transmission link 143 is pulled, finally, the driving force from the driving member 152 is transmitted to the movable portion 122, the movable portion 122 is pulled to rotate around the fixed assembly 110 to be collinear with the fixed assembly 110, and simultaneously, the stopper 136 retracts to the accommodating groove 113 under the action of the movable portion 122 and does not stop the locking member 131 any more.
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 move counterclockwise about the first rotation shaft 153, further pulls the first locking link 132 to move, then pushes the second locking link 133 to move clockwise about the first fixing shaft 1333, thereby pushing 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 inserted into the receiving groove 113, locking the movable portion 122, and completing the unfolding of the folding mechanism 100.
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 in a modularized unit, the installation is simple and convenient, the movement of the two mechanisms of the locking assembly 130 and the transmission assembly 140 is completed by utilizing the action of the driving assembly 150, the weight and the control mode are greatly optimized, and the overall stability of the folding mechanism 100 is improved.
According to 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 so as to drive the locking assembly 130 to be selectively connected with or separated from the movable part 122, the driving assembly 150 is also in transmission connection with the transmission assembly 140 so as to drive the transmission assembly 140 to move, thereby driving the rotating connecting part 121 to rotate relative to the fixed assembly 110, and the movement of the locking assembly 130 and the transmission assembly 140 is completed through the action of the driving assembly 150, so that the rotating connecting part 121 can rotate relative to the fixed assembly 110, and the folding mechanism 100 can be switched between an unfolding state and a 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, so that 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. 8 and 9, the embodiment of the present application 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 coupled to blade 220 and movable assembly 120 is coupled to hub 210.
In the present embodiment, the number of the blades 220 is two or more, and the number of the folding wings 200 is the same as the number of the blades 220.
The number of folding mechanisms 100 and blades 220 is plural, and each folding mechanism 100 is connected between a hub 210 and one blade 220, thereby enabling each blade 220 to fold relative to the hub 210.
The folding wing 200 further includes a blade clip 230, where the blade clip 230 is fixedly connected to the movable assembly 120 and the blade 220, so as to ensure stability of connection of the blade 220, and ensure that the blade 220 can be stably connected to the folding mechanism 100 without generating large shaking.
In summary, the folding wing 200 provided in this embodiment of the present application is in transmission connection with the locking assembly 130 through the driving assembly 150 of the folding mechanism 100, so as to drive the locking assembly 130 to be selectively connected with or separated 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 connecting portion 121 to rotate relative to the fixed assembly 110, and through the action of the driving assembly 150, the movement of 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, thereby enabling the folding mechanism 100 to switch between the unfolded state and the folded state, and also locking the folding mechanism 100 in the unfolded state, preventing the fixed assembly 110 from being separated from the movable assembly 120, greatly enhancing the stability of the folding mechanism 100, and simultaneously, the folding mechanism 100 is small in size, light in weight and compact in structure.
Referring to fig. 10, an embodiment of the present application further provides an aircraft 300, where the aircraft 300 includes an aircraft body 310 and a folding wing 200, and the folding wing 200 is disposed on the aircraft body 310.
In summary, the aircraft 300 provided in this embodiment of the present application is in transmission connection with the locking assembly 130 through the driving assembly 150 of the folding mechanism 100, so as 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, so as to drive the transmission assembly 140 to move, thereby driving the rotation connecting portion 121 to rotate relative to the fixed assembly 110, and through the action of the driving assembly 150, the movement of 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, thereby switching the folding mechanism 100 between the unfolded state and the folded state, and locking the folding mechanism 100 in the unfolded state, preventing the fixed assembly 110 from being separated from the movable assembly 120, greatly enhancing the stability of the folding mechanism 100, and meanwhile, the folding mechanism 100 has small size, light weight and compact structure.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. A folding mechanism for use with a foldable rotor assembly, the folding mechanism comprising:
a fixing assembly;
the movable assembly comprises a rotary connecting part and a movable part which are connected, the rotary connecting part is rotatably connected with the fixed assembly, and the movable part is selectively connected with or separated from the fixed assembly;
two sets of locking assemblies selectively connected to or disconnected from the movable portion;
the two groups of transmission components are connected to the rotation connecting part; and
the two groups of driving assemblies are oppositely arranged;
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, and the driving component is also used for being connected with a power component of the foldable rotor wing device;
wherein the fixed assembly is used for being connected to a hub of the foldable rotor device, and the movable assembly is connected to a blade of the foldable rotor device; alternatively, the stationary assembly is adapted to be coupled to a blade of the foldable rotor device, and the movable assembly is coupled to a hub of the foldable rotor device;
wherein the driving assembly comprises a driving connecting rod and a driving piece; the driving piece is arranged on the fixing assembly and is a linear motor; the driving connecting rod comprises a first rotating shaft, a second rotating shaft and a third rotating shaft, the driving connecting rod is connected with the transmission assembly through the first rotating shaft, the driving connecting rod is connected with the driving piece through the second rotating shaft, and the driving connecting rod is connected with the locking assembly through the third rotating shaft; the locking assembly comprises a locking piece, the movable part is provided with a plug hole, and the locking piece is selectively plugged in or separated from the plug hole;
the locking assembly further comprises a first locking connecting rod, a second locking connecting rod and a third locking connecting rod, wherein the first locking connecting rod is of a strip-shaped structure, the second locking connecting rod is of a V-shaped structure, and the third locking connecting rod is of an arc-shaped structure; the first locking connecting rod is rotationally connected between the driving assembly and the second locking connecting rod, the second locking connecting rod is rotationally connected between the first locking connecting rod and the third locking connecting rod, and the third locking connecting rod is connected with the locking piece.
2. The folding mechanism according to claim 1, wherein the fixing component 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 portion, and the locking piece can penetrate through the first side wall and be inserted into the insertion hole.
3. The folding mechanism of claim 2, wherein the locking assembly further comprises an elastic member and a stop member, the elastic member and the stop member are disposed in the fixing assembly and located in the receiving groove, and when the locking member is separated from the plugging hole, the elastic force generated by the elastic member pushes the stop member to extend out so as to stop the locking member from penetrating through the first side wall.
4. The folding mechanism of claim 1, wherein the second locking link comprises a first fixed shaft fixedly connected to the fixed assembly, the second locking link comprises opposing 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.
5. The folding mechanism of claim 1, wherein the drive assembly includes a first drive link rotatably coupled between the drive assembly and the second drive link, a second drive link coupled between the first drive link and the third drive link, and a third drive link rotatably coupled to the stationary assembly.
6. The folding mechanism of claim 5, wherein the second drive link includes a second fixed shaft fixedly connected to the fixed assembly, the second drive link includes opposite first and second drive ends, the first drive end is rotatably connected to the second fixed shaft, and the second drive end is connected to the third drive link, the first drive link is connected between the first and second drive ends.
7. A folding wing comprising a hub, a blade and a folding mechanism according to any of claims 1-6, the stationary component being connected to the hub and the movable component being connected to the blade; alternatively, the fixed component is connected to the blade, and the movable component is connected to the hub.
8. The folding wing of claim 7, wherein the number of folding mechanisms and blades are each a plurality, each folding mechanism being connected between the hub and one of the blades.
9. The folding wing of claim 7, further comprising a paddle clip fixedly connected to the movable assembly and the paddle.
10. An aircraft comprising an aircraft body and a folding wing according to any one of claims 7 to 9, the folding wing being provided in 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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| Application Number | Priority Date | Filing Date | Title |
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| CN202111642827.9A CN114193989B (en) | 2021-12-29 | 2021-12-29 | Folding mechanism, folding wing and aircraft |
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| CN114193989A CN114193989A (en) | 2022-03-18 |
| CN114193989B true CN114193989B (en) | 2024-02-20 |
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