CN113060272A - Unmanned aerial vehicle horn beta structure - Google Patents
Unmanned aerial vehicle horn beta structure Download PDFInfo
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- CN113060272A CN113060272A CN202110547562.8A CN202110547562A CN113060272A CN 113060272 A CN113060272 A CN 113060272A CN 202110547562 A CN202110547562 A CN 202110547562A CN 113060272 A CN113060272 A CN 113060272A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C1/30—Parts of fuselage relatively movable to reduce overall dimensions of aircraft
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Abstract
The invention discloses an unmanned aerial vehicle arm folding structure which comprises a motor, a first gear and a plurality of arm folding assemblies, wherein an output shaft of the motor is fixedly connected with the axis of the first gear, and the plurality of arm folding assemblies are uniformly distributed along the circumferential direction of the first gear; the horn folding assembly includes gear drive assembly, belt drive assembly and connecting piece, and connecting piece one end is connected on belt drive assembly's belt, the other end and unmanned aerial vehicle horn tip fixed connection, and first gear passes through gear drive assembly and drives the belt drive assembly operation to make the horn stretch out or accomodate to the unmanned aerial vehicle fuselage along the direction of belt operation. The invention can simultaneously act on a plurality of unmanned aerial vehicle arms through the first gear, so that the plurality of arms can be folded or unfolded simultaneously, and the folding or unfolding lengths are consistent.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicle design, in particular to an unmanned aerial vehicle arm folding structure.
Background
On the present market, most unmanned aerial vehicle's horn is used for power structures such as fixed paddle, the part of stretching out the unmanned aerial vehicle fuselage is more, make unmanned aerial vehicle's bulky, the inconvenient transportation of carrying, and current unmanned aerial vehicle horn beta structure is comparatively complicated, it is all comparatively inconvenient when folding and expand, and most of beta structures are to every horn exclusive reaction, it is different to cause the length that a plurality of horns stretch out the unmanned aerial vehicle fuselage easily, make unmanned aerial vehicle receive the influence when flying, influence unmanned aerial vehicle's flight.
Disclosure of Invention
The invention provides an unmanned aerial vehicle arm folding structure, which can simultaneously act on a plurality of arms of an unmanned aerial vehicle through a first gear, a plurality of gear transmission assemblies and a plurality of belt transmission assemblies, so that the plurality of arms can be simultaneously folded or unfolded, and the plurality of arms can extend out of the unmanned aerial vehicle body in the same length due to the fact that only one power source of the first gear simultaneously acts on the plurality of arms.
The invention is realized by the following technical scheme:
an unmanned aerial vehicle horn folding structure comprises a motor, a first gear and a plurality of horn folding assemblies, wherein an output shaft of the motor is fixedly connected with the axis of the first gear, and the horn folding assemblies are uniformly distributed along the circumferential direction of the first gear; the folding component of the horn comprises a gear transmission component, a belt transmission component and a connecting piece, one end of the connecting piece is connected to a belt of the belt transmission component, the other end of the connecting piece is fixedly connected with the end part of the horn of the unmanned aerial vehicle, and the first gear drives the belt transmission component to operate through the gear transmission component, so that the horn extends out of or is accommodated in the body of the unmanned aerial vehicle along the direction of the belt operation; when first gear revolve, be simultaneously to a plurality of gear drive subassembly effects, a plurality of gear drive subassemblies start simultaneously, it begins to act on to drive belt drive subassembly simultaneously, belt drive subassembly promotes the horn and stretches out or accomodate to the unmanned aerial vehicle fuselage, thereby make a plurality of horns of unmanned aerial vehicle can begin to expand simultaneously or accomodate towards unmanned aerial vehicle's fuselage, because the power that a plurality of horns received all derives from first gear, so can guarantee that the power size that a plurality of horns received is unanimous, the length size that a plurality of horns stretched out the unmanned aerial vehicle fuselage is the same, unmanned aerial vehicle organism stability of flight in-process has been guaranteed.
Furthermore, the belt transmission assembly further comprises an incomplete gear and two belt pulleys, the belt is sleeved on the outer rings of the two belt pulleys, the two belt pulleys are in a gear structure, the incomplete gear is arranged between the two belt pulleys and is meshed with one of the two belt pulleys, and the incomplete gear is connected with the gear transmission assembly; when the gear transmission assembly is started, the incomplete gear is driven to rotate, the belt pulley meshed with the incomplete gear starts to rotate, so that the belt is driven to start to rotate, the belt transmission assembly starts to start, the connecting piece connected to the belt moves along the belt transmission direction along with the starting of the belt transmission assembly, the arm of the unmanned aerial vehicle is fixedly connected to the connecting piece and moves along with the connecting piece, and therefore the arm is stored in the body of the unmanned aerial vehicle or is unfolded outwards from the body of the unmanned aerial vehicle; unmanned aerial vehicle's horn one end is connected on the connecting piece, is located inside the unmanned aerial vehicle fuselage, and the other end is located the unmanned aerial vehicle outside for power structures such as fixed paddle.
Furthermore, the gear transmission structure comprises a second gear, a first bevel gear, a second bevel gear, a first connecting shaft and a second connecting shaft, the second gear and the second bevel gear are coaxially and fixedly connected to the second connecting shaft, the first bevel gear and the incomplete gear are coaxially and fixedly connected to the first connecting shaft, the second gear is meshed with the first gear, the first bevel gear is meshed with the second bevel gear, an included angle between the first connecting shaft and the second connecting shaft is a right angle, the rotary motion of the first gear is converted into the rotary motion of the incomplete gear through the gear transmission structure, when the gear transmission assembly acts, the position of the first connecting shaft is parallel to the first gear, the included angle between the first connecting shaft and the second connecting shaft is 90 degrees, and the rotation of the first gear is transmitted to the second gear, the second gear can drive the second connecting axle and rotate, thereby make second bevel gear also follow the rotation, first bevel gear and second bevel gear intermeshing, turn into first bevel gear's horizontal rotation motion with second bevel gear's vertical rotary motion, vertical direction is relative with the direction of placing of first gear, first gear level is placed, then the second rotation axis is vertical placing, effect through gear drive subassembly, transmit the rotation of incomplete gear with the rotation of first gear, thereby drive belt drive subassembly's start-up, realize the purpose simultaneously to the same dynamics effect of a plurality of horn.
Further, be equipped with the tooth on incomplete gear third's the outer circumference, incomplete gear only partially can with the belt pulley meshing, therefore the belt pulley is intermittent type nature pivoted, the transportation of belt is intermittent type also, after the switch of starter motor, first gear begins to rotate, because the existence of incomplete gear, the motion of unmanned aerial vehicle horn is intermittent type nature, the user can have comparatively abundant time to judge whether the length that the horn stretches out the fuselage is enough, then the stop motor.
Further, second connecting axle both ends all are connected with the inside rotation of unmanned aerial vehicle fuselage, when second gear revolve, can drive the second rotation axis and rotate together, and the second rotation axis is fixed inside the fuselage, and both ends all are connected with the fuselage rotation, and second gear stability is better when rotatory, can guarantee the stability of whole gear drive assembly.
Furthermore, the belt transmission assembly further comprises a belt groove, the belt groove is of a groove-shaped structure with an opening in one side face, the belt is arranged in the belt groove, a short shaft rotationally connected with the belt pulley is arranged in the belt groove, an opening for a first connecting shaft to penetrate through is formed in one side face of the belt groove, one end of the first connecting shaft is rotationally connected with the belt groove, and the other end of the first connecting shaft is rotationally connected with the inside of the unmanned aerial vehicle body; fixed connection has two minor axises in the belt trough, two belt pulleys rotate to be connected on the minor axis that corresponds, the belt cover is established at two belt pulley outsides, belt and belt pulley all set up in the inslot of belt trough, belt trough fixed connection is inside the unmanned aerial vehicle fuselage, belt drive subassembly and gear drive subassembly complex stability can be guaranteed to this kind of structure, the connecting piece sets up in that one side of belt trough opening, the connecting piece can not receive the hindrance of belt trough along with the belt when moving, and the holistic stability of belt drive subassembly can make the horn can be smooth and easy stretch out the unmanned aerial vehicle fuselage or accomodate to inside the unmanned aerial vehicle fuselage.
Further, be provided with on the belt inner circle surface with belt pulley intermeshing's rack, the cooperation of belt and belt pulley is equivalent to the cooperation of gear and rack, is difficult to skid between belt and the belt pulley to the motion of belt is regular, can be through confirming how much the belt pulley has rotated the distance that judges the belt and advance or retreat, makes the horn advance or retreat the distance can be more accurate.
Further, the connecting piece with belt groove sliding connection can set up the arch on the connecting piece, set up on the belt groove with protruding complex recess, the connecting piece can slide on the belt groove, and sliding connection has restricted the movement track of connecting piece, restricts the movement track of connecting piece on a straight line, just the bottom of connecting piece with belt outer lane surface can be dismantled and be connected, the connecting piece can follow under the rotation of belt the groove of belt groove is to the slip, can dismantle to connect and conveniently overhauls whole equipment or change certain part, has improved the holistic flexibility of equipment, can dismantle and be connected with multiple structure, can be protruding and the joint cooperation between the recess, also can be the time tooth and the engagement structure between the tooth.
The invention has the following advantages and beneficial effects:
according to the unmanned aerial vehicle, the rotation of the first gear is transmitted to the belt transmission assemblies simultaneously through the cooperation among the first gear, the gear transmission assemblies and the belt transmission assemblies, so that the arms connected with the belt transmission assemblies can be unfolded or folded simultaneously, and the acting force of the first gear on each arm is consistent, so that the distances of the arms extending out of the body of the unmanned aerial vehicle are consistent, the lengths of the arms extending out of the body of the unmanned aerial vehicle are equal, the gravity center of the unmanned aerial vehicle cannot be changed, and the unmanned aerial vehicle can fly stably; still set up incomplete gear for the user has more abundant time to go to confirm the horn and need stretch out unmanned aerial vehicle's length, and through the meshing between belt and the drive wheel, makes the motion of horn more stable.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a top view of the overall structure of the present invention.
FIG. 2 is a schematic view of the gear assembly of the present invention.
Fig. 3 is a block diagram of the belt drive assembly of the present invention.
Fig. 4 is a schematic view of the belt drive assembly of the present invention.
Reference numbers and corresponding part names in the drawings:
1-motor, 2-first gear, 3-connecting piece, 4-arm, 51-belt, 52-belt pulley, 53-incomplete gear, 54-belt groove, 55-short shaft, 61-second gear, 62-first bevel gear, 63-second bevel gear, 64-first connecting shaft and 65-second connecting shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
An unmanned aerial vehicle horn 4 folding structure, as shown in figures 1 to 4, comprises a motor 1, a first gear 2 and a plurality of horn 4 folding components, wherein an output shaft of the motor 1 is fixedly connected with an axle center of the first gear 2, the plurality of horn 4 folding components are uniformly distributed along the circumferential direction of the first gear 2, when the first gear 2 is driven by the motor 1 to rotate, the horn 4 folding components rotate along with the motor 1, can fold and stretch the horn 4, the horn 4 folding assembly comprises a gear transmission assembly, a belt transmission assembly and a connecting piece 3, one end of the connecting piece 3 is connected on a belt 51 of the belt transmission assembly, the other end is fixedly connected with the end part of the horn 4 of the unmanned aerial vehicle, a first gear 2 drives the belt transmission assembly to operate through the gear transmission assembly, so that the horn 4 extends or is stowed into the fuselage of the drone in the direction of travel of the belt 51.
In the above technical scheme, motor 1 is initial power supply, motor 1 drives first gear 2 and rotates, first gear 2 is again through gear drive subassembly with motion conduction to belt drive subassembly, make belt drive subassembly begin to operate, then through setting up connecting piece 3, conduct belt drive subassembly's belt 51's motion to connecting piece 3 on, when connecting piece 3 moves along belt drive subassembly's transmission direction, order about horn 4 and stretch out towards the unmanned aerial vehicle fuselage is inside folding or towards the unmanned aerial vehicle outside, belt drive subassembly's transmission direction and unmanned aerial vehicle horn 4's major axis direction are located same straight line, in practical application, corresponding horn 4 folding assembly has all been set up on every horn 4 of unmanned aerial vehicle.
When the first gear 2 rotates, each gear transmission component acts simultaneously, acting force on each gear transmission component is the same, and the structures of each gear transmission component are consistent, so that the transmission motion of the belt transmission components matched with the gear transmission components is in the same rhythm, a plurality of belt transmission components start to operate simultaneously and stop operating simultaneously, and the transmission length of the belt 51 is consistent in the operation time, so that a plurality of arms 4 of the unmanned aerial vehicle can extend and retract simultaneously, the extending and retracting lengths are the same, if each arm 4 is controlled to extend and retract by different power sources, even if switches of the used power sources are gathered together, the rhythms of the operation of the different power sources are different easily caused, and by adopting one power source in the embodiment, namely one first gear 2, the operation of the plurality of gear transmission components is driven, control a plurality of gear drive subassemblies and be in same rhythm operation, ensure the flexible synchronism of a plurality of unmanned aerial vehicle horn 4, avoid because a plurality of horn 4 of unmanned aerial vehicle stretch out unmanned aerial vehicle's length varies for unmanned aerial vehicle's flight focus skew causes unmanned aerial vehicle's flight to go wrong.
The belt transmission component comprises an incomplete gear 53 and two belt pulleys 52 besides a belt 51, the belt 51 is sleeved on the outer rings of the two belt pulleys 52, the two belt pulleys 52 are in a gear structure, the incomplete gear 53 is arranged between the two belt pulleys 52 and is meshed with one belt pulley 52, and the incomplete gear 53 is connected with the gear transmission component; the belt 51 is sleeved outside the two belt pulleys 52, the belt 51 is driven to run by the transmission of the belt pulleys 52, the incomplete gear 53 is connected with the gear transmission component, and the incomplete gear 53 is driven to rotate by the driving of the gear transmission component, so that the belt pulley 52 meshed with the incomplete gear 53 rotates, and the belt 51 starts to transmit; in this embodiment, the surface of the inner ring of the belt 51 is provided with a rack engaged with the belt pulley 52, and when the belt pulley 52 rotates, the belt 51 can be better matched with the belt 51 to drive the belt 51 to rotate, in other embodiments, the belt 51 can also adopt a common belt 51, and the belt 51 can rotate in a matching manner with the belt pulley 52 by friction force.
The incomplete gear 53 is that only part of the circumference of the outer circumference is provided with teeth, the specific structure diagram of the belt transmission assembly is shown in fig. 4, because of the special structure of the incomplete gear 53, the belt pulley 52 matched with the incomplete gear 53 intermittently moves, so the horn 4 also intermittently stretches, for the flight occasion needing to control the length of the horn 4, the user can press the stop switch at the stretching gap of the horn 4, because the horn 4 has a period of stop time after stretching, the user can judge whether the horn 4 of the unmanned aerial vehicle reaches the proper length by using the period of stop time, thereby stopping the rotation of the motor 1, if the incomplete gear 53 is not adopted to control the transmission of the belt transmission assembly, the horn 4 of the unmanned aerial vehicle can stretch at a uniform speed, and no time is provided for the user to think whether the horn 4 of the unmanned aerial vehicle has stretched to the proper length, with this configuration, the user cannot accurately control the extension/contraction length of the arm 4.
In order to completely combine the rotation of the incomplete gear 53 and the transmission distance of the belt 51, in one embodiment, a rack meshed with the belt pulley 52 is arranged on the surface of an inner ring of the belt 51, under the structure, the belt pulley 52 can be precisely meshed with the belt 51, and the transmission distance of the belt 51 is consistent when the incomplete gear 53 rotates for one circle, so that the transmission distance of the belt 51 can be judged through the number of turns of the incomplete gear 53 to determine the telescopic distance of the arm 4, and as the belt transmission assembly, the gear transmission assembly and other structures are arranged inside the unmanned aerial vehicle body, a user can directly judge the telescopic length of the arm 4 of the unmanned aerial vehicle by observing the intermittent movement of the arm 4 of the unmanned aerial vehicle for several times, the use convenience of the folding structure is improved, if the belt 51 is matched with the belt pulley 52 only through friction action, the belt pulley 52 is easy to slip with the belt 51 when rotating, the transmission distance of the belt 51 is not easy to control, and certain instability exists in practical use; it should be noted that the diameter of the incomplete gear 53 is smaller than that of the pulley 52, so as to avoid the incomplete gear 53 contacting the belt 51, which would cause the belt 51 to rotate under the action of the incomplete gear 53.
In this embodiment, one third of the outer circumference of the incomplete gear 53 is provided with teeth, so that the rotation time of the pulley 52 is less than the stop time, and more time can be provided for the user to determine the extending length of the horn 4, in other embodiments, the number of teeth on the outer circumference of the incomplete gear 53 can be a little more or a little less, no matter how many teeth of the incomplete gear 53 are, the distance of the incomplete gear 53 rotating for one circle of belt 51 transmission needs to be determined, and after the parameter is determined, the subsequent use is more convenient.
The gear transmission structure comprises a second gear 61, a first bevel gear 62, a second bevel gear 63, a first connecting shaft 64 and a second connecting shaft 65, the second gear 61 and the second bevel gear 63 are coaxially and fixedly connected onto the second connecting shaft 65, the first bevel gear 62 and the incomplete gear 53 are coaxially and fixedly connected onto the first connecting shaft 64, the second gear 61 is meshed with the first gear 2, the first bevel gear 62 is meshed with the second bevel gear 63, an included angle between the first connecting shaft 64 and the second connecting shaft 65 is a right angle, and rotary motion of the first gear 2 is converted into rotary motion of the incomplete gear 53 through the gear transmission structure.
The direction of the rotation axis of the first gear 2 is defined as a vertical direction, the direction of the rotation axis of the incomplete gear 53 is defined as a horizontal direction, the gear transmission assembly is used for converting the rotation motion of the first gear 2 into the rotation motion of the incomplete gear 53, in a specific embodiment, the installation position of the first connecting shaft 64 is parallel to the plane of the first gear 2, the second connecting shaft 65 is simultaneously perpendicular to the plane of the first gear 2 and the straight line of the first connecting shaft 64, after the first gear 2 transmits the rotation motion of the first gear to the second gear 61, the second gear 61 is fixedly connected to the second connecting shaft 65, so that the second gear 61 can drive the second connecting shaft 65 to rotate together when rotating, the second bevel gear 63 fixedly connected to the second connecting shaft 65 can also rotate along with the rotation, and as the second bevel gear 63 is meshed with the first bevel gear 62, the vertical rotational motion of the second bevel gear 63 is converted into the horizontal rotational motion of the first bevel gear 62, the first connecting shaft 64 rotates following the rotation of the first bevel gear 62, and the incomplete gear 53 fixedly connected to the first connecting shaft 64 also starts to rotate; through a plurality of gear drive assembly's effect, with the rotation transmission of first gear 2 to incomplete gear 53's rotation to drive belt drive assembly's start-up, realize the purpose simultaneously to the same dynamics of a plurality of horn 4.
In the embodiment, the diameter of the second gear 61 is smaller than that of the first gear 2, and since there are a plurality of gear transmission assemblies, that is, one first gear 2 should be engaged with a plurality of second gears 61 at the same time, when the size of the second gear 61 and the first gear 2 is selected, it should be ensured that the plurality of second gears 61 can be engaged with the first gear 2 at the same time, and the plurality of second gears 61 are not affected by each other; the first bevel gear 62 and the second bevel gear 63 are selected with care to be unable to interact with other components of the folding structure or other components inside the drone, and the first bevel gear 62 and the second bevel gear 63 are sized to fit the size of the interior space of the drone,
in order to maintain gear drive assembly's stability, need all set up inside unmanned aerial vehicle with second connecting axle 65 and unmanned aerial vehicle fuselage internal connection, two tip of unmanned aerial vehicle to with the inside rotation of unmanned aerial vehicle and be connected, make gear drive assembly can smoothly mesh when the operation, stable transmission.
The belt transmission assembly further comprises a belt groove 54, the belt groove 54 is of a groove-shaped structure with an opening in one side face, the belt 51 is arranged in the belt groove 54, a short shaft 55 connected with the belt pulley 52 in a rotating mode is arranged in the belt groove 54, an opening for the first connecting shaft 64 to penetrate is formed in one side face of the belt groove 54, one end of the first connecting shaft 64 is connected with the belt groove 54 in a rotating mode, and the other end of the first connecting shaft is connected with the inner portion of the unmanned aerial vehicle body in a rotating mode.
In the above technical solution, the belt 51, the belt pulley 52 and the incomplete gear 53 are all placed in the belt groove 54, two stub shafts 55 are also fixedly connected in the belt groove 54, the two belt pulleys 52 are respectively rotatably connected with the corresponding stub shafts 55, an opening for the first connecting shaft 64 to pass through is opened on the belt groove 54, in order to ensure the stability of the incomplete gear 53 and the first bevel gear 62 during rotation, one end of the first connecting shaft 64 is rotatably connected on the belt groove 54, the other end is rotatably connected inside the unmanned aerial vehicle, because of the position relationship between the first bevel gear 62 and the second bevel gear 63, the positions of the first connecting shaft 64 and the second connecting shaft 65 may have an intersection point, in order to avoid this, a protrusion is arranged inside the unmanned aerial vehicle, the protrusion is located on a cavity formed by the first bevel gear 62 and the second bevel gear 63, the first connecting shaft 64 and the second connecting shaft 65 are both rotatably connected on the protrusion, the stability of the first connecting shaft 64 and the second connecting shaft 65 is ensured.
In this embodiment, the belt groove 54 appearance is a cuboid structure, the long side of one side of cuboid is opened there is the notch, belt 51, belt pulley 52 and incomplete gear 53 install in the notch, the cross section of belt groove 54 is similar with the type of calligraphy, connecting piece 3 is sliding connection with belt groove 54's connected mode, the connecting piece 3 lower extreme is provided with the arch, be provided with the recess with protruding adaptation on belt groove 54's the notch, make connecting piece 3 accessible recess and bellied cooperation, the groove along belt groove 54 slides to the direction, belt groove 54's groove is parallel to the major axis direction of direction and horn 4, sliding connection has restricted the movement track of connecting piece 3, restrict the movement track of connecting piece 3 on a straight line.
In order to facilitate maintenance or replacement, the connecting manner of the connecting piece 3 and the belt 51 is set to be detachably connected, and the flexibility of the whole structure can be improved by detaching the connecting piece, in this embodiment, teeth are arranged at the bottom of the connecting piece 3, teeth meshed with the teeth on the connecting piece 3 are arranged at a position where the surface of the belt 51 is in contact with the connecting piece 3, the number of the teeth on the belt 51 is larger, so that the initial position where the connecting piece 3 is placed is convenient to adjust, in other embodiments, a protrusion can be directly arranged on the connecting piece 3, a groove matched with the protrusion is arranged on the surface of the belt 51, or the surface of the belt 51 can be reversely arranged, a groove is arranged on the connecting piece 3, a protrusion is arranged on the surface of the belt 51, generally, in order to ensure the overall strength of the belt 51; in other embodiments, the connecting element 3 may be directly and fixedly connected to the belt 51, but this structure may reduce the flexibility of the whole device and is inconvenient to use.
During the transmission of belt 51, can drive connecting piece 3 on the belt 51 and transmit together, connecting piece 3 slides along the slip direction with the sliding structure of belt groove 54, avoids connecting piece 3 to be partial to for 4 direction squints of horn, and belt groove 54 bottom is fixed connection inside the unmanned aerial vehicle fuselage, guarantees whole belt drive assembly's stability, makes the flexible that horn 4 can be stable.
In practical use, the folding assemblies of the arms 4 have four groups, the included angle between two adjacent arms 4 is 90 degrees, in an initial state, the arms 4 are folded inside the unmanned aerial vehicle body, at the moment, the connecting piece 3 is positioned at one end of the belt groove 54 close to the first gear 2, the motor 1 is fixed in the unmanned aerial vehicle body through the fixing frame, the first gear 2 is fixedly connected with the output end of the motor 1, the motor 1 is started, the motor 1 starts to rotate forwards, the first gear 2 rotates along with the output shaft of the motor 1, the four second gears 61 meshed with the first gear 2 all start to rotate, the rotation is conducted to the incomplete gear 53 through the action of the gear transmission assembly, the incomplete gear 53 starts to drive the belt pulley 52 to transmit, the belt 51 starts to transmit around the two belt pulleys 52, the connecting piece 3 drives the arms 4 to extend and unfold towards the outside of the unmanned aerial vehicle along with the transmission of the belt, when the machine arm 4 extends out, intermittent motion is performed, and a user can stop the motor 1 according to the extending length of the machine arm 4; when needing folding unmanned aerial vehicle horn 4, the switch of starter motor 1 for motor 1 begins the reversal, and first gear 2 begins to turn to the opposite direction, and on the effect through gear drive subassembly will rotate and conduct to incomplete gear 53, belt 51 begins the reverse drive, will stretch out unmanned aerial vehicle's horn 4 and drive to inside the unmanned aerial vehicle fuselage.
In this embodiment, incomplete gear 53 rotates the round, and the driven distance of belt 51 is definite to horn 4 is when flexible, is intermittent type nature motion, and the user can judge the length of stretching out or receiving into the unmanned aerial vehicle fuselage according to the number of times that horn 4 moved, thereby stops motor 1 in the stop time of intermittent type nature motion, the flexible length of accurate control horn 4.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The folding structure of the unmanned aerial vehicle arm is characterized by comprising a motor (1), a first gear (2) and a plurality of folding assemblies of the arm (4), wherein an output shaft of the motor (1) is fixedly connected with the axis of the first gear (2), and the folding assemblies of the arm (4) are uniformly distributed along the circumferential direction of the first gear (2);
horn (4) folding assembly includes gear drive subassembly, belt drive subassembly and connecting piece (3), connecting piece (3) one end is connected on belt drive subassembly's belt (51), the other end and unmanned aerial vehicle horn (4) tip fixed connection, first gear (2) drive through gear drive subassembly the belt drive subassembly operation to make horn (4) along the direction of belt (51) operation is stretched out or is accomodate to the unmanned aerial vehicle fuselage.
2. The folding structure of unmanned aerial vehicle horn of claim 1, characterized in that, the belt drive assembly still includes one incomplete gear (53) and two belt pulleys (52), belt (51) cover is established in two belt pulley (52) outer lane, two belt pulleys (52) are gear structure, incomplete gear (53) set up in the middle of two belt pulleys (52), and with one of them belt pulley (52) meshing, incomplete gear (53) with the gear drive assembly is connected.
3. The unmanned aerial vehicle horn-folding structure of claim 2, wherein the gear transmission structure comprises a second gear (61), a first bevel gear (62), a second bevel gear (63), a first connecting shaft (64), and a second connecting shaft (65), the second gear (61) and the second bevel gear (63) are coaxially and fixedly connected to the second connecting shaft (65), the first bevel gear (62) and the incomplete gear (53) are coaxially and fixedly connected to the first connecting shaft (64), the second gear (61) is intermeshed with the first gear (2), the first bevel gear (62) is intermeshed with the second bevel gear (63), the included angle between the first connecting shaft (64) and the second connecting shaft (65) is a right angle, the rotary motion of the first gear (2) is converted into the rotary motion of the partial gear (53) by means of a gear transmission.
4. An unmanned aerial vehicle horn-folding structure as claimed in claim 3, wherein the incomplete gear (53) is provided with teeth on one third of its outer circumference.
5. The folding structure of unmanned aerial vehicle arm of claim 3, characterized in that, both ends of the second connecting shaft (65) are rotatably connected with the inside of the unmanned aerial vehicle body.
6. The folding structure of unmanned aerial vehicle horn of claim 3, characterized in that, belt drive assembly still includes belt groove (54), belt groove (54) are a side open-ended cell type structure, belt (51) set up in belt groove (54), be provided with in belt groove (54) with pulley (52) rotate minor axis (55) of being connected, just belt groove (54) a side is equipped with the opening that supplies first connecting axle (64) to pass, first connecting axle (64) one end with belt groove (54) rotate to be connected, the other end is connected with the inside rotation of unmanned aerial vehicle fuselage.
7. An unmanned aerial vehicle horn beta structure of claim 6, characterized in that, be provided with the rack with the belt pulley (52) intermeshing on belt (51) inner circle surface.
8. An unmanned aerial vehicle horn beta structure of claim 6, characterized in that, connecting piece (3) and belt groove (54) sliding connection, and the bottom of connecting piece (3) and belt (51) outer lane surface can be dismantled and be connected, connecting piece (3) can be followed the groove of belt groove (54) under the rotation of belt (51) to the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116374246A (en) * | 2023-04-23 | 2023-07-04 | 安徽省农业科学院园艺研究所 | Unmanned aerial vehicle drives bird aircraft |
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| CN116374246B (en) * | 2023-04-23 | 2023-09-05 | 安徽省农业科学院园艺研究所 | Unmanned aerial vehicle drives bird aircraft |
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