Rotor and vehicle

Abstract

The application provides a rotor and a vehicle, the rotor comprising a hub, a blade mechanism and a cyclical pitch mechanism, the blade mechanism being hinged to the hub and having a folded state and an unfolded state; the cyclical pitch mechanism is connected to the blade mechanism, and the adjustment movement of the cyclical pitch mechanism drives the blade mechanism to be selectively in the folded state or the unfolded state. In this way, the rotor can realize the pitch adjustment, folding and unfolding of the blade mechanism through the cyclical pitch mechanism, and the rotor does not need to be provided with a separate motor to drive the folding and unfolding of the blade mechanism, which is helpful for facilitating the manufacturing, saving the manufacturing cost, and also helpful for the efficient folding and storage of the rotor of the vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rotors, in particular to a rotor and a vehicle. BACKGROUND

[0002] The blades of a rotor vehicle, such as a rotor helicopter or a rotor car, are generally larger than the size of the fuselage when unfolded. In order to reduce the space occupied by sea transportation (such as a carrier-based aircraft) or land transportation, and to reduce the risk of impact on the relatively fragile blades outside the fuselage, the rotor needs to be folded and stored.

[0003] However, the existing rotor vehicle with cyclic pitch change realizes the folding and storage of the rotor through a separate motor, resulting in high production and maintenance costs. SUMMARY

[0004] The present application provides a rotor and a vehicle to improve at least one of the above technical problems.

[0005] The present application achieves the above-mentioned purposes through the following technical solutions.

[0006] In a first aspect, the present application provides a rotor, which comprises a hub, a blade mechanism and a cyclic pitch change mechanism. The blade mechanism is hinged to the hub and has a folded state and an unfolded state. The cyclic pitch change mechanism is connected to the blade mechanism, and the adjustment movement of the cyclic pitch change mechanism drives the blade mechanism to selectively be in the folded state or the unfolded state.

[0007] In some embodiments, the blade mechanism comprises a mounting shaft, a blade and a locking piece. The mounting shaft is hinged to the hub, the blade is hinged to the mounting shaft, the cyclic pitch change mechanism is connected to the blade, and the locking piece is movably assembled to the mounting shaft. The locking piece has a first locking position and a second locking position relative to the mounting shaft. When the locking piece is in the first locking position, the locking piece locks the mounting shaft and the blade. The adjustment movement of the cyclic pitch change mechanism drives the blade and the mounting shaft to rotate together relative to the hub. When the locking piece is in the second locking position, the locking piece locks the mounting shaft and the hub. The adjustment movement of the cyclic pitch change mechanism drives the blade to rotate relative to the mounting shaft.

[0008] In some embodiments, the mounting shaft is hinged to the hub along the axial direction of the mounting shaft, and the blade is hinged to the mounting shaft along the radial direction of the mounting shaft. The locking piece is movably assembled to the mounting shaft along the axial direction of the mounting shaft.

[0009] In some embodiments, the locking piece is slidably assembled to the mounting shaft along the axial direction of the mounting shaft. The sliding of the locking piece relative to the mounting shaft moves back and forth between the first locking position and the second locking position.

[0010] In some embodiments, the locking member is slidably sleeved on the mounting shaft along the axial direction of the mounting shaft, the locking member is collectively sleeved on the mounting shaft and the paddle when the locking member is in the first locking position, and the locking member is sleeved on the mounting shaft and avoids the paddle when the locking member is in the second locking position.

[0011] In some embodiments, the locking member further has a third locking position relative to the mounting shaft, the third locking position is located between the first locking position and the second locking position, the paddle is provided with a paddle matching portion, the paddle matching portion is arranged at an end of the paddle facing the mounting shaft, the locking member is provided with a paddle limiting portion, the paddle limiting portion is arranged at an end of the locking member facing the paddle, and the paddle limiting portion of the locking member in the third locking position is clamped on the paddle matching portion.

[0012] In some embodiments, the locking member is slidably sleeved on the mounting shaft along the axial direction of the mounting shaft, the paddle hub is provided with a paddle hub matching portion, the paddle hub matching portion is arranged at an end of the paddle hub facing the locking member, the locking member is provided with a paddle hub limiting portion, the paddle hub limiting portion is arranged at an end of the locking member facing the paddle hub, the paddle hub matching portion of the locking member in the second locking position is clamped on the paddle hub limiting portion, and the paddle hub matching portion of the locking member in the first locking position is separated from the paddle hub limiting portion.

[0013] In some embodiments, an inner wall of the locking member is provided with a guide sliding groove extending along the axial direction of the locking member, and the mounting shaft is provided with a guide sliding body protruding along the radial direction of the mounting shaft, the guide sliding body being slidably embedded in the guide sliding groove.

[0014] In some embodiments, an outer wall of the locking member is provided with an external thread, the paddle mechanism further comprises a fixing seat and a transmission ring, the fixing seat is connected to the paddle hub, the transmission ring is rotatably assembled on the fixing seat, an inner ring of the transmission ring is provided with an internal thread matched with the external thread, the transmission ring is sleeved on the outer wall of the locking member, and rotation of the transmission ring relative to the fixing seat drives the locking member to slide relative to the mounting shaft.

[0015] In some embodiments, the paddle mechanism comprises a first movable paddle and a second movable paddle, the first movable paddle and the second movable paddle each comprise a mounting shaft, a paddle, and a locking member, and the first movable paddle and the second movable paddle are distributed around the rotation axis of the paddle hub; the paddle of the first movable paddle and the paddle of the second movable paddle are both in the first locking position, adjustment movement of the cyclic variable pitch mechanism drives the paddle of the first movable paddle and the mounting shaft to jointly rotate relative to the paddle hub, and also drives the paddle of the second movable paddle and the mounting shaft to jointly rotate relative to the paddle hub; the paddle of the first movable paddle and the paddle of the second movable paddle are both in the second locking position, adjustment movement of the cyclic variable pitch mechanism drives the paddle of the first movable paddle to rotate relative to the mounting shaft, and also drives the paddle of the second movable paddle to rotate relative to the mounting shaft.

[0016] In some embodiments, the paddle mechanism further comprises a third movable paddle, the first movable paddle, the second movable paddle and the third movable paddle are distributed along the rotation axis of the hub in sequence; the rotor has a deployed state and a stowed state, when the rotor is in the deployed state, the locking member of the first movable paddle and the locking member of the second movable paddle are both in the first locking position; when the rotor is in the stowed state, the paddle of the first movable paddle and the paddle of the second movable paddle are both inclined towards the third movable paddle.

[0017] In some embodiments, the third movable paddle is hinged to the hub along the axial direction of the third movable paddle, the rotor further comprises a variable-pitch motor, the variable-pitch motor is installed on the hub and in transmission connection with the third movable paddle, the driving of the variable-pitch motor drives the third movable paddle to rotate relative to the hub.

[0018] In some embodiments, the cyclic variable-pitch mechanism comprises a first tilt plate, a second tilt plate, an actuator, a first connecting rod and a second connecting rod, the first tilt plate, the second tilt plate and the actuator are connected in sequence, one end of the first connecting rod is connected to the first movable paddle, the other end of the first connecting rod is connected to the first tilt plate, one end of the second connecting rod is connected to the second movable paddle, the other end of the second connecting rod is connected to the first tilt plate, and the actuator is connected to the second tilt plate.

[0019] In the second aspect, the embodiments of the present application provide a vehicle, which comprises a fuselage and the rotor of any of the above-mentioned embodiments, and the rotor is connected to the fuselage.

[0020] The rotor and the vehicle provided by the present application have the following advantages: the paddle mechanism is hinged to the hub, the paddle mechanism has a folded state and a deployed state, the cyclic variable-pitch mechanism is connected to the paddle mechanism, and the cyclic variable-pitch mechanism can realize the variable-pitch of the paddle mechanism. In addition, the adjustment movement of the cyclic variable-pitch mechanism drives the paddle mechanism to be selectively in the folded state or the deployed state. In this way, the rotor can realize the folding and deployment of the paddle mechanism through the cyclic variable-pitch mechanism, and the rotor does not need to be provided with a separate motor to drive the folding and deployment of the paddle mechanism, which is helpful for convenient manufacturing, saving manufacturing cost, and also helpful for the efficient stowage of the rotor of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0022] Figure 1 Fig. 1 shows a structural schematic diagram of a vehicle provided by an embodiment of the present application.

[0023] Figure 2A cross-sectional structural schematic diagram of the rotor of the present application is shown, in which the locking member is in the first locking position.

[0024] Figure 3 A cross-sectional structural schematic diagram of the rotor of the present application is shown, in which the locking member is in the second locking position. Figure 2

[0025] Figure 4 A cross-sectional structural schematic diagram of the rotor of the present application is shown, in which the locking member is in the third locking position. Figure 2

[0026] Figure 5 A cross-sectional structural schematic diagram of the rotor of the present application is shown, in which the locking member is in the third locking position. Figure 2 DETAILED DESCRIPTION

[0027] In order to make the personnel in the technical field better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without making creative efforts are within the protection scope of the present application.

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0029] The small rotor vehicles in the prior art generally achieve storage by manually manipulating the rotor. However, the hub structure of the medium and large rotor vehicles is complex, the rotor size and weight are large, the inertia moment is large, the difficulty and risk of manual manipulation for storage are large, the medium and large rotor vehicles generally set an electric motor on each blade to drive the corresponding blade to store, and then multiple electric motors need to be controlled to work when the rotor is folded and stored, so that the rotor cannot work efficiently. In addition, the large number of electric motors leads to high production and maintenance costs.

[0030] Referring to Figure 1 The present application provides a vehicle 100, which can be a helicopter, a drone, a flying car or the like.

[0031] ​​​The vehicle 100 comprises a fuselage 20 and a rotor 10 connected to the fuselage 20. The vehicle 100 has a deployed attitude and a stowed attitude, and the rotor 10 of the vehicle 100 in different attitudes is in different conditions. For example, the vehicle 100 is in the deployed attitude, the rotor 10 is deployed, the rotor 10 can provide lift for the vehicle 100, and can also generate a horizontal component of force forward, so as to overcome air resistance and make the vehicle 100 fly forward. For another example, the vehicle 100 is in the stowed attitude, the rotor 10 is folded and stowed, so as to reduce the space occupied by the vehicle 100, and also helps the vehicle 100 to move on land.

[0032] The vehicle 100 can further comprise an arm 30, the rotor 10 is connected to the fuselage 20 through the arm 30, and the arm 30 can rotate relative to the vehicle 100. When it is needed that the vehicle 100 is in the deployed attitude, the arm 30 drives the rotor 10 to deploy to a position suitable for the vehicle 100 to fly. When it is needed that the vehicle 100 is in the stowed attitude, the arm 30 drives the rotor 10 to rotate to a position suitable for the vehicle 100 to be folded and stowed.

[0033] Please refer to Figure 2 In some embodiments, the rotor 10 comprises a hub 11, a blade mechanism 13 hinged to the hub 11, and a cyclic pitch mechanism 12 connected to the blade mechanism 13, and the cyclic pitch mechanism 12 can realize pitch adjustment of the blade mechanism 13.

[0034] The blade mechanism 13 has a folded state and an unfolded state, and the blade mechanism 13 can be in different states by rotating relative to the hub 11. The blade mechanism 13 occupies different space sizes in different states, for example, the blade mechanism 13 occupies a smaller space in the folded state than in the unfolded state.

[0035] The adjustment movement of the cyclic pitch mechanism 12 drives the blade mechanism 13 to be selectively in the folded state or the unfolded state. In this way, the rotor 10 can realize folding and unfolding of the blade mechanism 13 through the cyclic pitch mechanism 12, and the rotor 10 does not need to be provided with a separate motor to drive the blade mechanism 13 to fold and unfold, which helps to facilitate manufacturing, save manufacturing cost, and also helps the vehicle 100 to efficiently stow the rotor.

[0036] Please refer to Figure 2 and Figure 3In some embodiments, the paddle mechanism 13 comprises a mounting shaft 131, a paddle 132, and a locking member 133. The mounting shaft 131 is hinged to the hub 11, for example, the mounting shaft 131 can be hinged to the hub 11 along the axial direction of the mounting shaft 131, so that the mounting shaft 131 can rotate relative to the hub 11. The paddle 132 is hinged to the mounting shaft 131, for example, the paddle 132 can be hinged to the mounting shaft 131 along the radial direction of the mounting shaft 131, so that the paddle 132 can rotate relative to the mounting shaft 131.

[0037] The cyclic pitch mechanism 12 is connected to the paddle 132, and the locking member 133 is movably mounted on the mounting shaft 131, for example, the locking member 133 can be movably mounted on the mounting shaft 131 along the axial direction of the mounting shaft 131, so that the locking member 133 can move relative to the mounting shaft 131. The locking member 133 has a first locking position (as shown in Figure 2 ) and a second locking position (as shown in Figure 3 ) relative to the mounting shaft 131. When the locking member 133 is in the first locking position, the locking member 133 locks the mounting shaft 131 and the paddle 132, and the adjustment movement of the cyclic pitch mechanism 12 drives the paddle 132 and the mounting shaft 131 to rotate relative to the hub 11. At this time, the adjustment movement of the cyclic pitch mechanism 12 can drive the paddle 132 to change the pitch. Specifically, when the vehicle 100 is in the deployed attitude, the locking member 133 is in the first locking position, and the cyclic pitch mechanism 12 can drive the paddle 132 to change the pitch according to actual needs, thereby maintaining the normal flight of the vehicle 100.

[0038] When the locking member 133 is in the second locking position, the locking member 133 locks the mounting shaft 131 and the hub 11, and the adjustment movement of the cyclic pitch mechanism 12 drives the paddle 132 to rotate relative to the mounting shaft 131. At this time, the adjustment movement of the cyclic pitch mechanism 12 can drive the paddle 132 to rotate relative to the mounting shaft 131. Specifically, when the vehicle 100 needs to be in the stowed attitude, the locking member 133 can be moved from the first locking position to the second locking position, and the cyclic pitch mechanism 12 drives the paddle 132 to rotate relative to the mounting shaft 131, so that the paddle 132 is rotated to a position that is beneficial for stowing, for example, the paddle 132 is rotated downward by about ninety degrees relative to the mounting shaft 131.

[0039] After the paddle 132 is stowed by the above-mentioned first rotation, the paddle 132 can also be rotated for the second time. For example, the locking member 133 can be moved towards the first locking position to unlock the mounting shaft 131 and the hub 11. At this time, the cyclic pitch mechanism 12 can drive the paddle 132 and the mounting shaft 131 to rotate relative to the hub 11, so that the paddle 132 is rotated for the second time, so that the paddle 132 is rotated to another position that is beneficial for stowing, for example, the paddle 132 and the mounting shaft 131 can be rotated upward by about ninety degrees relative to the hub 11.

[0040] In the above embodiments, the blade 132 is rotated and stored in the second locking position and the first locking position by the locking member 133 in sequence. In other embodiments, the blade 132 can also be rotated and stored in the first locking position and the second locking position by the locking member 133 in sequence, for example, when the locking member 133 is in the first locking position, the cyclic pitch mechanism 12 can drive the blade 132 and the mounting shaft 131 to rotate relative to the hub 11 to a suitable position, and then the locking member 133 is moved to the second locking position, and the blade 132 is rotated relative to the mounting shaft 131 under the driving of the cyclic pitch mechanism 12 to a position suitable for storage.

[0041] In this way, the cyclic pitch mechanism 12 can drive the blade 132 to change the pitch, and the cyclic pitch mechanism 12 can also drive the blade 132 to rotate twice for rotation and storage, which helps to facilitate manufacturing and save manufacturing costs, and also helps the vehicle 100 to efficiently store the rotor 10.

[0042] Please refer to Figure 2 , Figure 3 and Figure 4 In some embodiments, the locking member 133 is slidably assembled along the axial direction of the mounting shaft 131, and the sliding of the locking member 133 relative to the mounting shaft 131 moves back and forth between the first locking position and the second locking position. Specifically, the locking member 133 can be assembled on the outer periphery of the mounting shaft 131, and the inner wall of the locking member 133 can be provided with a guide sliding groove 1333 extending along the axial direction of the locking member 133, and the mounting shaft 131 can be provided with a guide sliding body 1311 protruding along the radial direction of the mounting shaft 131, and the guide sliding body 1311 is slidably embedded in the guide sliding groove 1333. In this way, the locking member 133 can smoothly slide on the outer periphery of the mounting shaft 131, thereby helping the rotor 10 to work efficiently.

[0043] In addition, since the guide sliding body 1311 of the mounting shaft 131 is slidably embedded in the guide sliding groove 1333 of the locking member 133, the mounting shaft 131 and the locking member 133 cannot rotate relative to each other, and when the freedom of rotation between the hub 11 and the locking member 133 is restricted, the locking member 133 can slide relative to the mounting shaft 131 along the axial direction of the mounting shaft 131, and the mounting shaft 131 and the locking member 133 cannot rotate relative to the hub 11, which helps to maintain the normal operation of the rotor 10.

[0044] The locking member 133 can be sleeved on the mounting shaft 131, for example, the locking member 133 is sleeved on the mounting shaft 131 along the axial direction of the mounting shaft 131, the locking member 133 in the first locking position is sleeved on the mounting shaft 131 and the blade 132, at this time, the rotation freedom degree between the blade 132 and the mounting shaft 131 is restricted, the blade 132 cannot rotate around the radial direction of the mounting shaft 131, so as to avoid the rotation of the blade 132 around the mounting shaft 131 affecting the pitch action of the rotor 10.

[0045] The locking member 133 in the second locking position is sleeved on the mounting shaft 131 and avoids the blade 132, at this time, the locking member 133 does not restrict the rotation freedom degree between the blade 132 and the mounting shaft 131, so that the blade 132 can rotate relative to the mounting shaft 131.

[0046] In addition, since the locking member 133 in the second locking position locks the mounting shaft 131 and the hub 11, the freedom degree of the mounting shaft 131 and the hub 11 is restricted, and the mounting shaft 131 rotates relative to the hub 11.

[0047] Please refer to Figure 4 and Figure 5 In some embodiments, the locking member 133 also has a third locking position relative to the mounting shaft 131, the third locking position is located between the first locking position and the second locking position, and the locking member 133 in the third locking position locks the mounting shaft 131 and the once-rotated blade 132. Specifically, after the blade 132 rotates once relative to the mounting shaft 131, the locking member 133 can slide from the second locking position to the third locking position, and the locking member 133 locks the mounting shaft 131 and the once-rotated blade 132, at this time, the once-rotated blade 132 and the mounting shaft 131 can rotate together relative to the hub 11 under the driving of the cyclic pitch mechanism 12, to realize the final rotation storage.

[0048] The blade 132 is provided with a blade matching part 1321, the blade matching part 1321 is arranged at the end of the blade 132 facing the mounting shaft 131, and the blade matching part 1321 can be a blind hole; the locking member 133 is provided with a blade limiting part 1331, the blade limiting part 1331 is arranged at the end of the locking member 133 facing the blade 132, and the blade limiting part 1331 can be a limiting pin, the limiting pin can be protruded from the end of the locking member 133, and the blade matching part 1321 and the blade limiting part 1331 are limited and matched.

[0049] The paddle limiting portion 1331 of the locking piece 133 in the third locking position is clamped on the paddle matching portion 1321, at this time, the freedom of rotation between the once-rotated paddle 132 and the mounting shaft 131 is restricted, the once-rotated paddle 132 cannot rotate radially around the mounting shaft 131, avoiding the once-rotated paddle 132 from rotating back to the unfolded posture due to external touch, which helps to maintain the stability of the once-rotated paddle 132, and also helps the paddle 132 to be rotated again by the periodic pitch changing mechanism 12.

[0050] In other embodiments, the paddle matching portion 1321 can be a column pin, and the paddle limiting portion 1331 can be a limiting blind hole. The paddle matching portion 1321 and the paddle limiting portion 1331 can be limited and matched, which can be set according to actual conditions.

[0051] It should be noted that when the locking piece 133 is in the first locking position or the second locking position, the paddle limiting portion 1331 is separated from the paddle matching portion 1321, which helps to ensure the normal work of the rotor 10.

[0052] Please refer to Figure 3 and Figure 4 In some embodiments, the hub 11 is provided with a hub matching portion 111, which is arranged at the end of the hub 11 facing the locking piece 133. For example, the hub matching portion 111 can be a hub protrusion protruding from the end of the hub 11. The locking piece 133 is provided with a hub limiting portion 1332 arranged at the end of the locking piece 133 facing the hub 11. The hub limiting portion 1332 can be a limiting groove, and the hub matching portion 111 can be limited and matched with the hub limiting portion 1332.

[0053] The hub matching portion 111 in the second locking position is clamped on the hub limiting portion 1332 of the locking piece 133, which helps to ensure that the locking piece 133 locks the hub 11. The hub limiting portion 1332 of the locking piece 133 in the first locking position is separated from the hub matching portion 111, which helps to ensure the normal work of the rotor 10.

[0054] In other embodiments, the hub matching portion 111 can be a groove, and the hub limiting portion 1332 can be a protrusion. The hub matching portion 111 can be limited and matched with the hub limiting portion 1332, which can be set according to actual conditions.

[0055] Please refer to Figure 5In some embodiments, the outer wall of the locking member 133 is provided with external threads; the paddle mechanism 13 further comprises a fixing seat 134 and a transmission ring 135, the fixing seat 134 is connected to the hub 11, and the transmission ring 135 is rotatably assembled to the fixing seat 134, and the inner ring of the transmission ring 135 is provided with internal threads which are adapted to the external threads. The transmission ring 135 is sleeved on the outer wall of the locking member 133, and the rotation of the transmission ring 135 relative to the fixing seat 134 drives the locking member 133 to slide relative to the mounting shaft 131.

[0056] Specifically, the rotor 10 can further comprise a folding motor 136 which is mounted in the fixing seat 134 and is in transmission connection with the transmission ring 135, the driving of the folding motor 136 drives the transmission ring 135 to rotate relative to the fixing seat 134, the internal threads of the transmission ring 135 are adapted to the external threads of the locking member 133, and thus, due to the existence of the thread rise angle, when the transmission ring 135 rotates relative to the fixing seat 134, the locking member 133 can move along the axial direction of the mounting shaft 131. In this way, through the forward rotation and reverse rotation of the transmission ring 135, the locking member 133 can move back and forth between the first locking position and the second locking position, thereby facilitating the efficient folding and storage of the rotor 10.

[0057] In other embodiments, the back-and-forth movement of the locking member 133 between the first locking position and the second locking position can also be realized by the driving of an electric push rod or a steel wire wheel set, and the specific mode can be set according to actual conditions.

[0058] In some embodiments, the paddle mechanism 13 can comprise a first movable paddle 136 and a second movable paddle 137, and the first movable paddle 136 and the second movable paddle 137 can have the same structure. The first movable paddle 136 and the second movable paddle 137 both comprise a mounting shaft 131, a paddle 132 and a locking member 133, and the first movable paddle 136 and the second movable paddle 137 are distributed around the rotation axis of the hub 11. The first movable paddle 136 and the second movable paddle 137 help the vehicle 100 to work more efficiently, for example, when the vehicle 100 is in the unfolded attitude for flight, the first movable paddle 136 and the second movable paddle 137 can provide sufficient lift for the vehicle 100; for another example, when the vehicle 100 needs to be pitch, the first movable paddle 136 and the second movable paddle 137 can meet the greater pitch requirement of the vehicle 100, thereby helping the vehicle 100 to work better.

[0059] The paddle 132 of the first movable paddle 136 and the paddle 132 of the second movable paddle 137 are both in the first locking position, and the adjustment movement of the cyclic pitch mechanism 12 drives the paddle 132 in the first movable paddle 136 and the mounting shaft 131 to rotate relative to the hub 11 together, and also drives the paddle 132 in the second movable paddle 137 and the mounting shaft 131 to rotate relative to the hub 11 together. The paddle 132 of the first movable paddle 136 and the paddle 132 of the second movable paddle 137 are both in the second locking position, and the adjustment movement of the cyclic pitch mechanism 12 drives the paddle 132 in the first movable paddle 136 to rotate relative to the mounting shaft 131, and also drives the paddle 132 in the second movable paddle 137 to rotate relative to the mounting shaft 131. In this way, the adjustment movement of the cyclic pitch mechanism 12 can meet the variable pitch and rotation storage requirements of the paddle 132 of the first movable paddle 136 and the paddle 132 of the second movable paddle 137, which helps the vehicle 100 to work efficiently, and also facilitates manufacturing.

[0060] The paddle mechanism 13 can further include a third movable paddle 138, and the first movable paddle 136, the second movable paddle 137 and the third movable paddle 138 are distributed in sequence around the rotation axis of the hub 11. When the rotor 10 is in the unfolded attitude, the locking member 133 of the first movable paddle 136 and the locking member 133 of the second movable paddle 137 are both in the first locking position, which helps to avoid the radial rotation of the paddle 132 along the mounting shaft 131 affecting the flight state of the rotor 10; when the rotor 10 is in the storage attitude, the paddle 132 of the first movable paddle 136 and the paddle 132 of the second movable paddle 137 are both inclined towards the direction of the third movable paddle 138, which helps to save the space occupied by the rotor 10, and also helps to avoid damage to the unfolded paddle 132 during storage.

[0061] The third movable paddle 138 is hinged to the hub 11 around the axial direction of the third movable paddle 138, and the rotor 10 further includes a variable pitch motor 14, which is installed on the hub 11 and in transmission connection with the third movable paddle 138. The driving of the variable pitch motor 14 drives the third movable paddle 138 to rotate relative to the hub 11. In this way, the third movable paddle 138 can be independently variable pitch, which helps to meet the variable pitch requirements of the rotor 10 under different conditions, thereby improving the applicability of the rotor 10.

[0062] In some embodiments, the cyclic pitch mechanism 12 comprises a first tilting disc 121, a second tilting disc 122, an actuator 123, a first connecting rod 124 and a second connecting rod 125, the first tilting disc 121, the second tilting disc 122 and the actuator 123 are sequentially connected, and the first tilting disc 121 can rotate relative to the second tilting disc 122. One end of the first connecting rod 124 is connected to the first movable blade 136, the other end of the first connecting rod 124 is connected to the first tilting disc 121, one end of the second connecting rod 125 is connected to the second movable blade 137, the other end of the second connecting rod 125 is connected to the first tilting disc 121, and the actuator 123 is connected to the second tilting disc 122.

[0063] In this way, the action of the actuator 123 can drive the second tilting disc 122 and the first tilting disc 121 to perform adjustment movement, and the first tilting disc 121 in turn drives the first connecting rod 124 and the second connecting rod 125 to perform adjustment movement, thereby meeting the rotation requirements of the first movable blade 136 and the second movable blade 137 under different conditions.

[0064] The rotor 10 can further comprise a power motor 15 and a rotating main shaft 16, the power motor 15 is in transmission connection with the rotating main shaft 16, the power motor 15 is arranged at one end of the actuator 123 away from the second tilting disc 122 and is in signal connection with the actuator 123, and the rotating main shaft 16 is connected to the hub 11. When the vehicle 100 is in the unfolded posture, the power motor 15 drives the rotating main shaft 16 to rotate, thereby driving the hub 11, the first movable blade 136, the second movable blade 137, the third movable blade 138 and the second tilting disc 122 to rotate synchronously, at this time the power motor 15 can control the actuator 123 to act according to actual requirements, and the folding motor 136 controls the locking piece 133 to slide to the first locking position, thereby realizing the pitch change of the rotor 10.

[0065] When it is required that the vehicle 100 is in the storage posture, the power motor 15 can drive the rotating main shaft 16 to rotate, so that the first movable blade 136, the second movable blade 137 and the third movable blade 138 are in positions beneficial to storage, for example, the power motor 15 drives the rotating main shaft 16 to rotate so that the third movable blade 138 rotates to a position parallel to the axis of the arm 30, at this time the power motor 15 controls the actuator 123 to act, and the folding motor 136 controls the locking piece 133 to slide to the second locking position and the third locking position in sequence, and the power motor 15 and the folding motor 136 work in cooperation, so that the rotor 10 realizes the final folding and storage.

[0066] Among them, since the action of the power motor 15 controlling the actuator 123 only drives the first movable blade 136 and the second movable blade 137 to act, this is helpful to reduce the driving load of the power motor 15, and also helps to reduce the weight and cost of the actuator 123.

[0067] In summary, the rotor 10 and the vehicle 100 provided by the application, the paddle mechanism 13 is hinged to the hub 11, the paddle mechanism 13 has a folded state and an unfolded state, the cyclic variable pitch mechanism 12 is connected to the paddle mechanism 13, and the cyclic variable pitch mechanism 12 can realize the variable pitch of the paddle mechanism 13. The adjustment movement of the cyclic variable pitch mechanism 12 drives the paddle mechanism 13 to be selectively in the folded state or the unfolded state. In this way, the rotor 10 can realize the folding and unfolding of the paddle mechanism 13 through the cyclic variable pitch mechanism 12, and the rotor 10 does not need to be provided with a separate motor to drive the paddle mechanism 13 to fold and unfold, which is helpful for convenient manufacturing, saving manufacturing cost, and also helpful for the vehicle 100 to efficiently store the rotor.

[0068] In the present application, unless otherwise explicitly specified or limited, the term "assembly" and the like should be understood in a broad sense. For example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium, or communication within two elements, or only surface contact, or surface contact connection through an intermediate medium. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0069] In addition, the terms "first", "second", and the like are only used to distinguish the description, and cannot be understood as specific or special structures. The description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0070] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A rotor, characterized by, The utility model relates to a kind of propeller mechanism, comprising: Hub; Blade mechanism, the blade mechanism has folding state and unfolding state, the blade mechanism includes mounting shaft, blade and locking piece, the mounting shaft is hinged to the hub, the blade is hinged to the mounting shaft, the locking piece is movably assembled to the mounting shaft; And Periodic pitch mechanism, the periodic pitch mechanism is connected to the blade, the adjustment movement of the periodic pitch mechanism drives the blade mechanism to be selectively in the folding state or the unfolding state; The locking piece has first locking position and second locking position relative to the mounting shaft, the locking piece in the first locking position locks the mounting shaft with the blade, the adjustment movement of the periodic pitch mechanism drives the blade and the mounting shaft jointly rotate relative to the hub;The locking piece in the second locking position locks the mounting shaft with the hub, the adjustment movement of the periodic pitch mechanism drives the blade rotate relative to the mounting shaft.

2. The rotor of claim 1, wherein The mounting shaft is hinged to the hub around the axial direction of the mounting shaft, the blade is hinged to the mounting shaft around the radial direction of the mounting shaft, and the locking piece is movably assembled to the mounting shaft along the axial direction of the mounting shaft.

3. The rotor of claim 2, wherein, The locking piece is slidably assembled to the mounting shaft along the axial direction of the mounting shaft, and the sliding of the locking piece relative to the mounting shaft moves back and forth between the first locking position and the second locking position.

4. The rotor of claim 3, wherein, The locking piece is slidably sleeved to the mounting shaft along the axial direction of the mounting shaft, the locking piece in the first locking position is jointly sleeved to the mounting shaft and the blade, and the locking piece in the second locking position is sleeved to the mounting shaft and avoids the blade.

5. The rotor of claim 4, wherein, The locking piece also has a third locking position relative to the mounting shaft, which is between the first locking position and the second locking position. The blade is provided with a blade matching part, which is arranged at the end of the blade facing the mounting shaft; the locking piece is provided with a blade limiting part, which is arranged at the end of the locking piece facing the blade, and the blade limiting part of the locking piece in the third locking position is clamped in the blade matching part.

6. The rotor of claim 3 wherein, The locking piece is slidably sleeved to the mounting shaft along the axial direction of the mounting shaft, the hub is provided with a hub matching part, which is arranged at the end of the hub facing the locking piece; the locking piece is provided with a hub limiting part, which is arranged at the end of the locking piece facing the hub, and the hub matching part of the locking piece in the second locking position is clamped in the hub limiting part of the locking piece, and the hub matching part of the locking piece in the first locking position is separated from the hub limiting part.

7. The rotor according to any one of claims 4 to 6, characterized in that An inner wall of the locking piece is provided with a guide sliding groove extending in the axial direction of the locking piece, and the mounting shaft is provided with a guide sliding body protruding in the radial direction of the mounting shaft, which is slidably embedded in the guide sliding groove.

8. The rotor of claim 7, wherein, An outer wall of the locking member is provided with an external thread; the paddle mechanism further comprises a fixing seat and a transmission ring, the fixing seat is connected to the hub, the transmission ring is rotatably assembled to the fixing seat, an inner ring of the transmission ring is provided with an internal thread, the internal thread is matched with the external thread, the transmission ring is sleeved on the outer wall of the locking member, and rotation of the transmission ring relative to the fixing seat drives the locking member to slide relative to the mounting shaft.

9. The rotor of claim 1, wherein, The paddle mechanism comprises a first movable paddle and a second movable paddle, the first movable paddle and the second movable paddle each comprise the mounting shaft, the paddle and the locking member, and the first movable paddle and the second movable paddle are distributed around the rotation axis of the hub; The paddle of the first movable paddle and the paddle of the second movable paddle are both in the first locking position, and adjustment movement of the cyclic variable pitch mechanism drives the paddle in the first movable paddle and the mounting shaft to jointly rotate relative to the hub, and also drives the paddle in the second movable paddle and the mounting shaft to jointly rotate relative to the hub; The paddle of the first movable paddle and the paddle of the second movable paddle are both in the second locking position, and adjustment movement of the cyclic variable pitch mechanism drives the paddle in the first movable paddle to rotate relative to the mounting shaft, and also drives the paddle in the second movable paddle to rotate relative to the mounting shaft.

10. The rotor of claim 9, wherein, The paddle mechanism further comprises a third movable paddle, the first movable paddle, the second movable paddle and the third movable paddle are distributed around the rotation axis of the hub in sequence; The rotor has a deployed posture and a stowed posture, the locking member of the first movable paddle and the locking member of the second movable paddle are both in the first locking position when the rotor is in the deployed posture, and the paddle of the first movable paddle and the paddle of the second movable paddle are both inclined towards the direction of the third movable paddle when the rotor is in the stowed posture.

11. The rotor of claim 10, wherein, The third movable paddle is hingedly connected to the hub around the axial direction of the third movable paddle, and the rotor further comprises a variable pitch motor, the variable pitch motor is installed on the hub and is in transmission connection with the third movable paddle, and driving of the variable pitch motor drives the third movable paddle to rotate relative to the hub.

12. The rotor of claim 9, wherein, The cyclic variable pitch mechanism comprises a first tilt disc, a second tilt disc, an actuator, a first connecting rod and a second connecting rod, the first tilt disc, the second tilt disc and the actuator are connected in sequence, one end of the first connecting rod is connected to the first movable paddle, the other end of the first connecting rod is connected to the first tilt disc, one end of the second connecting rod is connected to the second movable paddle, the other end of the second connecting rod is connected to the first tilt disc, and the actuator is connected to the second tilt disc.

13. A vehicle, characterized by comprise: a fuselage; and the rotor according to any one of claims 1 to 12, the rotor is connected to the fuselage.

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