CN207956094U - Installing mechanism, undercarriage, rack and unmanned plane - Google Patents
Installing mechanism, undercarriage, rack and unmanned plane Download PDFInfo
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- CN207956094U CN207956094U CN201820348688.6U CN201820348688U CN207956094U CN 207956094 U CN207956094 U CN 207956094U CN 201820348688 U CN201820348688 U CN 201820348688U CN 207956094 U CN207956094 U CN 207956094U
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Abstract
The carrier being additionally provided with below the lower section of the centre frame of the unmanned plane and the centre frame for carrying payload is arranged in a kind of installing mechanism, the tripod for installing unmanned plane, the tripod, and the installing mechanism includes:Rotating part and driving portion;The rotating part is used to be rotatablely connected with the centre frame, and for being connect with the tripod;The driving portion for fixing with the centre frame is used to that the rotating part to be driven to rotate when the carrier rotates.Tripod is driven to rotate by the way that installing mechanism is arranged, it can be to avoid the mode of influence carrier.The utility model also provides a kind of undercarriage of unmanned plane, rack and unmanned plane.
Description
Technical Field
The utility model relates to an installation mechanism, undercarriage, frame and unmanned aerial vehicle belongs to unmanned air vehicle technical field.
Background
The foot rest is used as an accessory device of the unmanned aerial vehicle with bearing and maneuverability, plays an extremely important role in the safe taking-off and landing process of the unmanned aerial vehicle, and is one of important parts of the unmanned aerial vehicle.
In recent years, the manufacturing industry of unmanned aerial vehicles is rapidly developed, and the unmanned aerial vehicles are widely applied to the fields of aerial photography, plant protection, mapping and the like. In order to avoid collision between a foot rest and ground fixers (such as trees, houses and the like) of the unmanned aerial vehicle in the flight process, the foot rest of the existing unmanned aerial vehicle is generally arranged to be retractable.
However, the retractable foot rest sometimes has a problem of entering a shooting picture in the rotating process of the tripod head, and in view of the problem, some manufacturers fix the foot rest on the tripod head, so that the foot rest can be synchronously driven to rotate when the tripod head rotates to avoid the foot rest entering the shooting picture. However, in the actual use process, the tripod fixedly connected with the tripod head affects the stability of the tripod head, and the shooting quality is reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned or other potential problems that exist among the prior art, the embodiment of the utility model provides a mounting mechanism, undercarriage, frame and unmanned aerial vehicle.
According to the utility model discloses an in some embodiments, provide a mounting mechanism for installation unmanned aerial vehicle's foot rest, the foot rest sets up unmanned aerial vehicle's centre frame the below just the below of centre frame still is provided with the carrier that is used for carrying on payload, mounting mechanism includes: a rotating part and a driving part; the rotating part is used for being rotatably connected with the center frame and is used for being connected with the foot rest; the driving part is used for being fixed with the center frame and driving the rotating part to rotate when the carrier rotates.
The mounting mechanism as described above wherein the carrier is a pan/tilt head and the payload is an imaging device.
The mounting mechanism as described above, wherein the rotating portion is a hollow structure in an axial direction, and an adaptor for connecting the carrier and the center frame passes through the hollow structure.
The mounting mechanism as described above, wherein the mounting mechanism further includes a support portion, the support portion is configured to be fixedly connected to the center frame, and the rotating portion is rotatably connected to the support portion.
The above-described mounting mechanism may be configured such that the supporting portion is a first bearing, and at least a portion of the rotating portion is mounted in the first bearing, so that the rotating portion can rotate around an axis of the first bearing.
The mounting mechanism as described above, wherein the first bearing is a rolling bearing, the rolling bearing including: a support, a ball and a slide rail; the supporting piece is used for being fixed with the center frame; the ball is arranged between the support piece and the sliding rail; the sliding rail is used for abutting against the contact position of the rotating part.
The mounting mechanism as set forth above, wherein the support members include at least one upper support member and at least one lower support member, and the slide rail includes: an upper slide rail and a lower slide rail; the at least one supporting piece is uniformly arranged at the outer edge of the upper sliding rail, and the ball is arranged between the at least one supporting piece and the upper sliding rail; the at least one lower supporting piece is uniformly arranged at the outer edge of the lower sliding rail, and the ball is also arranged between the at least one lower supporting piece and the lower sliding rail; and a part of the rotating part is clamped between the upper slide rail and the lower slide rail.
The mounting mechanism as described above, wherein the rotating portion includes a driven member, the driven member is in transmission connection with the driving portion, and the driven member is in rotational connection with the supporting portion; or,
the rotating part comprises the driven part and an end cover, and the end cover comprises an upper end cover and a lower end cover;
the driven piece is fixed with the upper end cover and the lower end cover, the driven piece is arranged between the upper end cover and the lower end cover, the upper end cover is rotatably connected with the supporting part, and the lower end cover is used for fixing the foot rest.
The mounting mechanism as described above, wherein the mounting mechanism further comprises a dust-proof sleeve, and the dust-proof sleeve is sandwiched between the driven member and the lower end cap.
The mounting mechanism is characterized in that the slide rail, the upper end cover, the lower end cover and the driven member are hollow structures, and an adapter for connecting the carrier and the center frame passes through the hollow structures.
The installation mechanism as described above, wherein the installation mechanism further includes a dust cap, the slide rail is accommodated in the dust cap, and the dust cap is fixed to the support member.
The mounting mechanism as described above, wherein a mounting opening is opened at a top end of the dust cap, and a portion of the support member, which is used for cooperating with the ball, passes through the mounting opening and extends into the dust cap.
The mounting mechanism as described above, wherein a plurality of positioning protrusions are formed in the dust cap.
The mounting mechanism as described above, wherein the rotating portion further includes a rotating shaft;
the bottom of pivot with the follower is fixed, the top of pivot be used for with the supporting part is rotated and is connected.
The mounting mechanism as described above, wherein the top end of the rotating shaft is screwed with the supporting portion; or,
one or more teeth are formed at the top end of the rotating shaft for meshing with one or more teeth formed on the supporting portion.
The mounting mechanism as described above, wherein the rotating shaft is a hollow shaft.
The mounting mechanism as described above, wherein the first bearing is a ball bearing, the rotating part includes a ball rod, a ball end of the ball rod is accommodated in a ball socket of the ball bearing, the other end of the ball rod is in transmission connection with the driving part, and the ball rod is further used for being fixed with the foot rest.
The mounting mechanism as described above wherein the support portion is an integral piece with the center frame.
The mounting mechanism as described above, wherein the driving portion includes a motor and a transmission member, and the motor is in transmission connection with the rotating portion through the transmission member.
The mounting mechanism comprises a transmission gear and a transmission belt, wherein the transmission gear is fixed with an output shaft of the motor, and the transmission gear is in transmission connection with the rotating part through the transmission belt.
The mounting mechanism is characterized in that the driving part further comprises a motor mounting seat, the motor mounting seat is used for being fixed on the center frame, and the motor is mounted on the supporting seat; or,
the driving part further comprises a motor mounting seat and a bearing supporting seat, a second bearing is mounted on the bearing supporting seat, the motor is mounted on the motor mounting seat, and an output shaft of the motor penetrates through the second bearing and is fixed with the transmission gear.
The mounting mechanism as described above, wherein the driving portion further includes a motor protection cover, and the motor protection cover is disposed outside the motor.
The mounting mechanism is characterized in that the motor protective cover is further provided with an LED module, and the LED module is used for indicating the flight control state and/or the electric quantity state of the unmanned aerial vehicle.
The mounting mechanism as described above, wherein the carrier is a pan/tilt head, and the motor is further configured to drive a yaw axis of the pan/tilt head.
According to some embodiments of the utility model, an unmanned aerial vehicle's undercarriage is provided, including foot rest and above-mentioned installation mechanism.
According to some embodiments of the utility model, a frame of unmanned aerial vehicle is provided, undercarriage including centre frame and above-mentioned unmanned aerial vehicle.
According to some embodiments of the utility model, an unmanned aerial vehicle is provided, be in including above-mentioned unmanned aerial vehicle's frame and setting the cloud platform of the centre frame below of frame.
According to the utility model discloses technical scheme is through rotating the rotating part be connected, just be used for with the foot rest is fixed with the centre frame in the setting to it is rotatory in carrier pivoted through the drive division drive, stability when can improving cloud platform rotation, and the rotation through the rotating part can also avoid the foot rest to interfere with the payload that carries on the carrier simultaneously, guarantees payload's operating mass with rated load.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and other objects, features and advantages of the embodiments of the present invention will become more readily understood from the following detailed description with reference to the accompanying drawings. Embodiments of the invention will be described, by way of example and not by way of limitation, in the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of an unmanned aerial vehicle provided in an embodiment of the present invention;
FIG. 2 is a schematic view of a mounting mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a mounting mechanism according to an embodiment of the present invention;
fig. 4 is an exploded view of a driving portion according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of another mounting mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of another mounting mechanism in accordance with the present embodiment, wherein a foot rest has been mounted to the mounting mechanism;
FIG. 7 is a schematic structural view of the mounting mechanism of FIG. 6 from another perspective;
fig. 8 is an exploded view of fig. 6, with the lower half of the foot rest cut away;
fig. 9 is an enlarged view of the support portion and the rotation portion in fig. 8.
In the figure:
1. an unmanned aerial vehicle; 10. A center frame; 30. A power assembly;
50. a foot rest; 60. A connecting member; 70. An installation mechanism;
71. a rotating part; 711. A driven gear; 712. A rotating shaft;
713a, upper end cap; 713b, lower end cap; 73. A drive section;
731. a motor; 731a, an output shaft; 732. A transmission gear;
733. a transmission belt; 734. A motor mounting seat; 735. A bearing support seat;
736. a second bearing; 737. A motor protective cover; 738. An LED module;
75. a support portion; 751. A support block; 753. A first bearing;
7551a, an upper support; 7551b, a lower supporter; 7552. A ball bearing;
7553a, an upper slide rail; 7553b, lower slide rail; 77. A dust cover;
771. an installation port; 773. Positioning the projection; 79. A dust-proof sleeve;
90. a holder; 2. An image forming apparatus.
Detailed Description
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Fig. 1 is a schematic structural diagram of the unmanned aerial vehicle provided in this embodiment. As shown in fig. 1, the drone 1 comprises a central frame 10, which is the main body part of the drone 1. The central frame 10 generally includes a flight control system of the drone 1 to control the flight state of the drone 1, such as to control the ascent, descent, steering, hovering of the drone 1. In particular, the flight control system may be a microprocessor, microcontroller, or integrated circuit, among others. The centre frame 10 includes top surface, bottom surface and is located the side between top surface and the bottom surface, and the top surface, bottom surface and side enclose synthetic space in be used for installing above-mentioned flight control system and for unmanned aerial vehicle 1 power supply's battery etc.. Of course, in other embodiments, a mounting cavity for mounting the battery may be formed by recessing the bottom surface of the center frame 10, and a battery cover may be detachably disposed at an opening of the mounting cavity.
A plurality of horn arms are generally uniformly disposed about the periphery of the steady rest 10 and may be symmetrical about the transverse or longitudinal axis of the steady rest 10. For example, fig. 1 shows that four arms are symmetrically arranged around the center frame 10 about a horizontal axis and a vertical axis, and the arms may be fixedly connected to the center frame 10, may also be rotatably connected to the center frame 10, or may also be designed to be foldable with respect to the center frame 10 to reduce the space occupied by the unmanned aerial vehicle 1 in the storage state. For example, the end of the horn near the center frame 10 may be inserted between the top and bottom surfaces of the center frame 10 from the side surface of the center frame 10 to improve the coupling strength of the horn and the center frame 10. It should be understood that although it is described above that one end of the horn may be inserted into the center frame 10 from the side of the center frame 10, it does not affect the relationship of the fixed connection or the rotational connection between the horn and the center frame 10. The horn may be formed of any suitable material known in the art, for example, a metal (e.g., iron or aluminum) or a non-metal (e.g., a polymer plastic) may be used to form the rod-like structure. Of course, in order to reduce the weight of the unmanned aerial vehicle 1 and improve the power performance of the unmanned aerial vehicle 1, the horn may be made of a carbon fiber material into a hollow rod-shaped structure or a plate-shaped structure with weight-reducing holes (see fig. 1).
One or more power assemblies 30 may be mounted at the end of the boom remote from the central frame 10 to power the ascent, advancement, hovering, rotation, etc. of the drone 1. The power assembly 30 may include a propeller, a driving motor for driving the propeller to rotate, an electric controller for controlling the operating parameters of the driving motor, and the like. It should be understood that when a plurality of power assemblies 30 are disposed on the same arm of the unmanned aerial vehicle 1, these power assemblies 30 may be disposed on the arm at intervals along the extending direction of the arm, or two power assemblies 30 may be disposed at the end of the arm in an up-down symmetrical manner as shown in fig. 1.
A carrier for carrying a payload is mounted below the central frame 10 so that the drone 1 may perform certain auxiliary functions with the payload carried. In particular, the carrier can be fixed to the bottom surface of the steady 10 directly or via an adapter. In this embodiment, the carrier may be a pan/tilt head 90 that allows the payload to rotate about one or more axes of rotation 712 to provide stability to the payload or to control the state of the payload to rotate, translate, etc. the payload. The pan/tilt head 90 of the present embodiment includes, but is not limited to, a single-axis pan/tilt head, a two-axis pan/tilt head, a three-axis pan/tilt head, and the like. Of course, the carrier may be other structures for carrying objects, such as a basket or a gripper.
In the present embodiment, a payload may refer to any portion of a load or object supported by pan/tilt head 90. The payload may be configured not to perform any operation or function. Alternatively, the payload may be a payload configured to perform a corresponding operation or function, also referred to as a functional payload. For example, the payload may include one or more sensors for surveying one or more targets. The sensor may collect information about the environment surrounding the sensor. Any suitable sensor may be incorporated into the payload, such as an imaging device 2 (e.g., a visual imaging device including an image capture device and a camera, an infrared imaging device, an ultraviolet imaging device, a thermal imaging device, etc.), an audio capture device (e.g., a parabolic microphone), a radio frequency (rf) sensor, a magnetic sensor, an ultrasonic sensor, etc. Where the payload may include a single type of sensor, emitter and/or tool, multiple types of sensors, emitters and/or tools, and any number and combination of sensors, emitters and/or tools, such as a sensor array.
In the following embodiments, the carrier is a three-axis pan-tilt and the payload is the imaging device 2. Here, the three-axis pan-tilt is meant to be rotatable around a first axis (e.g., yaw axis), a second axis (e.g., roll axis), and a third axis (e.g., pitch axis), respectively. When the triaxial head rotates about the yaw axis, the imaging device 2 supported by the triaxial head also synchronously rotates about the yaw axis.
A plurality of foot rests 50 are also provided below the center frame 10 so as to be supported on the ground or other ground crops when the unmanned aerial vehicle 1 is under force, thereby avoiding the contact of main structures such as the center frame 10 of the unmanned aerial vehicle 1 with the ground or the ground crops, and protecting the unmanned aerial vehicle 1. Generally speaking, the foot stool 50 is made of a carbon fiber material to form a hollow rod-shaped structure, so as to reduce the weight of the unmanned aerial vehicle 1 and improve the power performance of the unmanned aerial vehicle 1; of course, the present embodiment does not exclude other materials with light weight and high strength to form the foot rest 50.
Although the foot rest 50 is made of a carbon fiber material in the prior art, when the foot rest 50 is fixed to the pan/tilt 90 to prevent the foot rest 50 from entering an imaging range (hereinafter referred to as a picture) of the imaging device 2 mounted on the pan/tilt 90, some manufacturers fix the foot rest 50 to the pan/tilt 90, so that the foot rest 50 can synchronously rotate when the pan/tilt 90 rotates to ensure that the foot rest 50 does not appear in the picture of the imaging device 2. However, the tripod head 90 of the unmanned aerial vehicle 1 needs to drive the tripod 50 to rotate while driving the imaging device 2 mounted thereon to rotate, although the quality of the tripod 50 is reduced by selecting materials, the tripod 50 still affects the modality of the tripod head 90 itself, which causes the stability of the tripod head 90 to be reduced, and further affects the imaging quality of the imaging device 2, for example, the picture of the imaging device 2 may become blurred in some cases, and the stability of the tripod head 90 itself is reduced, which may also cause the potential safety hazard of the imaging device 2 mounted thereon.
In view of this, in the present embodiment, a mounting mechanism 70 is further provided below the center frame 10 for mounting the foot rest 50. A portion of the mounting mechanism 70 (hereinafter referred to as a rotating portion 71) is rotatably connected to the center frame 10, that is, the rotating portion 71 can rotate relative to the center frame 10, the foot rest 50 is fixed to the rotating portion 71, so that the foot rest 50 can rotate relative to the center frame 10 under the driving of the rotating portion 71 to adjust the position of each foot rest 50 relative to the center frame 10, and thus the foot rest 50 can be prevented from appearing in the image of the imaging device 2 when the pan/tilt head 90 drives the imaging device 2 to rotate, and because the foot rest 50 is fixed to the rotating portion 71 of the mounting mechanism 70, the pan/tilt head 90 does not need to drive the foot rest 50 to rotate again when rotating, thereby improving the stability of the pan/tilt head 90 and improving the imaging quality of.
Specifically, during control, the rotating portion 71 and the pan/tilt head 90 of the mounting mechanism 70 are both in communication connection with a flight control system, and the flight control system can send control signals to the mounting mechanism 70 and the pan/tilt head 90 to control the yaw axis of the rotating portion 71 and the pan/tilt head 90 to rotate. For example, the yaw axes of the rotating portion 71 and the pan/tilt head 90 are controlled to rotate synchronously, that is, the rotating direction and the rotating speed of the yaw axes of the rotating portion 71 and the pan/tilt head 90 are the same, so that the foot stool 50 can also rotate synchronously when the pan/tilt head 90 rotates, so as to prevent the foot stool 50 from entering the inside of the screen of the imaging device 2 mounted on the pan/tilt head 90. Of course, the flight control system may control the yaw axes of the rotating portion 71 and the pan/tilt head 90 to rotate by different angles, and it is only necessary that the foot stool 50 does not enter the inside of the screen of the imaging device 2 all the time during the rotation of the pan/tilt head 90. It can be understood that when other payloads are carried on the pan/tilt head 90, for example, other sensors, the flight control system controls the rotating portion 71 and the yaw axis of the pan/tilt head 90 to rotate synchronously or at different angles, so that the foot rest 50 does not interfere with other payloads, for example, does not block the sensing area of the rf sensor. Furthermore, although only the flight control system has been described above as controlling the rotation of the rotary part 71 and the pan/tilt head 90, in other embodiments, the rotation of the rotary part 71 and the pan/tilt head 90 may be controlled by a remote control or ground station wirelessly connected to the drone 1. Of course, the remote controller may control the rotating portion 71 and the pan/tilt head 90 directly or indirectly through a flight control system.
FIG. 2 is a schematic view of the mounting mechanism provided in this embodiment. As shown in fig. 2, in order to drive the rotating portion 71 to rotate relative to the center frame 10 to adjust the relative position between the foot rest 50 fixed to the rotating portion 71 and the center frame 10 so that the foot rest 50 does not enter the screen of the imaging device 2 mounted on the pan/tilt head 90, the mounting mechanism 70 further includes a driving portion 73, and the driving portion 73 is used for being fixed to the center frame 10 and can be used for driving the rotating portion 71 to rotate when the pan/tilt head 90 rotates. It is understood that the driving portion 73 may be used only for driving the rotation portion 71 to rotate, or may be used for driving the rotation portion 71 and the pan/tilt head 90 to rotate at the same time. Furthermore, in order to support the driving portion 73 and to achieve rotatable connection of the rotating portion 71 to the center frame 10, the rotating portion 71 is further optionally provided with a support portion 75 fixedly connected to the center frame 10. Specifically, the support portion 75 and the bottom surface of the center frame 10 may be fixed by bolts, screws, rivets, or the like, and the rotating portion 71 is connected to the support portion 75 and rotatable with respect to the support portion 75.
In this embodiment, the driving portion 73 and the center frame 10 may be fixed directly or indirectly, for example, the driving portion 73 and the center frame 10 are fixed by an intermediate connecting member, which may be a separate component or any component belonging to the driving portion 73 or the center frame 10, and is not limited specifically herein.
While several mounting mechanisms 70 are described below, it should be understood by those skilled in the art that these mounting mechanisms 70 are exemplary and not intended to be limiting, and that one skilled in the art should be able to replace or combine one or more of the components of the mounting mechanism 70 described below, or replace or combine one or more features, etc. without departing from the scope of the present invention.
Fig. 3 is a schematic structural diagram of a mounting mechanism according to this embodiment, and fig. 4 is an exploded view of a driving portion 73 according to this embodiment. As shown in fig. 3 and 4, in the present embodiment, the rotating portion 71 includes a rotating shaft 712 and a driven member in transmission connection with the driving portion 73, and the driven member includes, but is not limited to, a driven wheel or a driven gear 711. The bottom end of the shaft 712 is fixed to the driven member, and the top end thereof is rotatably connected to the support portion 75. The driving part 73 may include a motor 731 and a transmission part, wherein the motor 731 is in transmission connection with the driven part through the transmission part, so that the motor 731 can drive the driven part to rotate to adjust the position of the stand 50 fixed on the rotating shaft 712.
With continued reference to fig. 3 and 4, the transmission member may include a first transmission member mounted on the output shaft of the motor 731, and a second transmission member for drivingly connecting the first transmission member and the driven member. For example, the first transmission member may be a transmission wheel or gear 732, the second transmission member may be a transmission belt 733, a transmission chain or gear, and the driven member may be a driven wheel or gear 711. Taking the first transmission member as the transmission gear 732, the second transmission member as the transmission belt 733, and the driven member as the driven gear 711 as an example, the transmission gear 732 is installed on the output shaft 731a of the motor 731, the driven gear 711 is fixed to the bottom end of the rotation shaft 712, and the transmission belt 733 is sleeved on the outer sides of the transmission gear 732 and the driven gear 711 to transmit the torque of the motor 731 to the rotation shaft 712. It is understood that the inner surface of the driving belt 733 may be provided with teeth matching with the driving gear 732 and the driven gear 711 to prevent the driving belt 733 from slipping, thereby improving the stability of the driving.
In this embodiment, the motor 731 may be directly fixed to the center frame 10, or the driving portion 73 further includes a supporting base (see fig. 4) fixedly connected to the center frame 10, and the motor 731 is mounted on the supporting base. For example, in some embodiments, the support base may include a motor mount 734 and a bearing support base 735. The supporting base of the motor 731 is fixedly connected to the central frame 10 (for example, the supporting base of the motor 731 is fixed to a side surface of the central frame 10), the motor 731 is mounted on the motor mounting base 734, the bearing supporting base 735 is mounted below the supporting base of the motor 731, a second bearing 736 is mounted on the bearing supporting base 735, and an output shaft 731a of the motor 731 passes through the second bearing 736 and is fixed to the transmission member (for example, fixed to the transmission gear 732). Based on the above, by providing the bearing support base 735 and the second bearing 736, the rigidity of the transmission gear 732 can be improved, the deformation of the transmission gear 732 can be reduced, and the slipping of the transmission belt 733 in the transmission process can be avoided, thereby improving the reliability of the belt transmission.
Alternatively, as shown in fig. 4, in order to protect the motor 731 of the driving part 73, the driving part 73 further includes a motor protection cover 737 which is provided outside the motor 731. An LED module 738 for indicating the flight control state and/or the power state of the drone is optionally provided on the motor protective cover 737, and an alarm may be given when the flight control state and/or the power state of the drone is abnormal. For example, when the LED module 738 of the driving portion 73 is turned on, the LED module 738 disposed on the motor protective cover 737 may display the flight control state and/or the power state of the drone to the user by lighting, changing the color, or flashing, and if the flight control state and/or the power state of the drone are wrong, the user may be alerted by the color, the flashing duration, or the like of the light of the LED module 738.
Wherein, unmanned aerial vehicle's rear can be located to drive division 73, and the user of being convenient for observes LED module 738, simultaneously, can be equipped with the interface on the LED module 738, and this interface can be used for controlling unmanned aerial vehicle's the connection of flight control parameter transfers the parameter line.
In this embodiment, the supporting portion 75 may be directly fixed to the bottom surface of the center frame 10 or formed as a single piece with the bottom surface of the center frame 10 by integral molding. Specifically, the support portion 75 may be a support block 751 or other structure described below, such as a first bearing 753. Taking the support block 751 as an example, a mating structure may be formed with the top end of the rotation shaft 712, such that the rotation shaft 712 can rotate relative to the support block 751.
For example, the above-mentioned mating structure is a screw coupling structure as shown in fig. 3, that is, the top end of the rotation shaft 712 is screw-coupled with the support block 751. Specifically, the support block 751 is provided with a mounting hole, an internal thread is formed on an inner wall of the mounting hole, and an external thread matching the internal thread is formed at the top end of the rotating shaft 712, so that when the driving belt 733 drives the driven gear 711 to rotate, the top end of the rotating shaft 712 fixedly connected with the driven gear 711 can also rotate in the mounting hole through the thread matching structure.
As another example, the mating structure may include one or more teeth formed on the top end of the shaft 712 and one or more teeth formed on the support block 751 that engage one or more teeth formed on the top end of the shaft 712. Specifically, an upper gear may be mounted on the top end of the rotation shaft 712, a mounting hole may be formed in the support block 751, and a plurality of teeth formed in a closed ring shape on the inner wall of the mounting hole and engaged with the teeth of the upper gear on the top end of the rotation shaft 712.
FIG. 5 is a schematic structural diagram of another mounting mechanism provided in this embodiment. As shown in fig. 5, in the present embodiment, the supporting portion 75 is a first bearing 753 fixed to the bottom surface of the center frame 10, and at least a portion of the rotating portion 71 is mounted in the first bearing 753, so that the rotating portion 71 can rotate around the axis of the first bearing 753 to rotate the foot stand 50 fixedly connected to the rotating portion 71, thereby preventing the foot stand 50 from entering the image of the imaging device 2.
In some embodiments, the first bearing 753 may be a ball bearing fixed to the underside of the steady 10, and the swivel portion 71 may include a ball shaft having a ball end received in a socket of the ball bearing such that the ball shaft may swivel relative to the ball bearing, and a follower fixed to the other end of the ball shaft, and also serving to secure the foot rest 50. In this embodiment, the driven member fixed at the other end of the club may be a driven wheel or a driven gear 711, so that when the driving portion 73 drives the driven member to rotate, for example, the driven gear 711 as the driven member is driven to rotate by the transmission belt 733, the ball of the club fixed with the driven member can rotate in the ball socket of the ball bearing, and the foot rest 50 fixed on the club can rotate along with the club to avoid entering the picture of the imaging device 2 mounted on the pan/tilt head 90. Of course, the other end of the rotating portion 71 may not be provided with a follower, and may be connected to the driving portion 73 in a transmission manner by another method. In this embodiment, the driving portion 73 may be the driving portion 73 in the above embodiments, and details are not repeated herein, for details, please refer to the contents of the above embodiments.
In other embodiments, the first bearing 753 may be a sliding bearing or a rolling bearing fixed to the bottom surface of the center frame 10. In the present embodiment, a sliding bearing or a rolling bearing commonly used in the art, such as a ball bearing or a roller bearing, may be used as the sliding bearing or the rolling bearing. Of course, this embodiment also does not exclude the use of other structures of the same principle as the sliding bearing or the rolling bearing as the bearing of the present embodiment, such as a rolling bearing with a structural improvement as will be described later. In mounting, the sliding bearing or the rolling bearing may be fixed to the bottom surface of the center frame 10 by a bearing housing, or a mounting hole may be formed in the bottom surface of the center frame 10 and then the sliding bearing or the rolling bearing may be mounted in the mounting hole.
In the present embodiment, the rotating portion 71 may include a rotating shaft 712 having a top end mounted in a sliding bearing or a rolling bearing, and a driven member, which may be a driven wheel or a driven gear 711, fixed to a bottom end of the rotating shaft 712 and drivingly connected to the driving portion 73. Of course, this embodiment also does not exclude the use of other structures having the same functions as the rotary shaft 712 and the follower as the rotary portion 71 of this embodiment, such as a modified rotary portion 71 as will be described later. It should be noted that the driving portion 73 of the present embodiment may use the structure of the driving portion 73 in the foregoing embodiment, and details are not described herein, for details, please refer to the contents of the foregoing embodiment.
Hereinafter, the operation of the mounting mechanism 70 for rotating the foot stand 50 will be briefly described by taking the example where the flight control system control driving unit 73 drives the rotating unit 71 to rotate. Wherein, the driving portion 73 includes a motor 731, a transmission gear 732, and a transmission belt 733, the rotating portion 71 includes a driven gear 711 and a rotating shaft 712, and the supporting portion 75 is a rolling bearing:
the flight control system sends a control signal to a motor 731 of the driving portion 73 according to information such as a rotation speed and a rotation direction of a yaw axis of the pan/tilt head 90, the motor 731 rotates according to the control signal to drive a transmission gear 732 to rotate, and then a transmission belt 733 sleeved outside the transmission gear 732 and a driven gear 711 fixed at the bottom end of the rotation shaft 712 transmits torque of the transmission gear 732 to the driven gear 711, so that the driven gear 711 drives the rotation shaft 712 fixed on the driven gear 711 to rotate in a rolling bearing, and further drives a foot rest 50 fixedly connected with the rotation shaft 712 to rotate, so that the foot rest 50 is located outside a picture of an imaging device 2 mounted on the pan/tilt head 90.
Alternatively, any of the rotating shafts 712 mentioned above may be designed as a hollow shaft, so that the adaptor for connecting the pan/tilt head 90 may pass through the hollow shaft to be fixed with the bottom surface of the center frame 10. Through designing pivot 712 into the hollow shaft to pass this hollow shaft with the adaptor of cloud platform 90, can protect cloud platform 90's connecting piece 60 on the one hand, on the other hand can reduce the windage in the flight of unmanned aerial vehicle 1, and from the vision moreover, the part quantity that exposes has reduced, has just also further promoted the pleasing to the eye in the vision. Based on the aforesaid can know, through becoming axial hollow structure along with the design of rotating part 71 for the adaptor of connecting the carrier passes this hollow structure, not only can play the guard action to the adaptor, can also reduce the windage and make unmanned aerial vehicle 1's outward appearance vision seem more pleasing to the eye.
FIG. 6 is a schematic structural view of another mounting mechanism provided in the present embodiment, in which a foot rest 50 has been mounted to the mounting mechanism; FIG. 7 is a schematic structural view of the mounting mechanism of FIG. 6 from another perspective; fig. 8 is an exploded view of fig. 6, with the lower half of the foot rest cut away. As shown in fig. 6 to 8, the mounting mechanism 70 includes: a driving portion 73, a supporting portion 75, a rotating portion 71, a dust cover 77, and a dust cover 79. The structure of the driving portion 73 is the same as that of the above embodiments, and please refer to the above description, which is not repeated herein. The support portion 75 includes: an upper support 7551a, a lower support 7551b, upper and lower slide rails 7553a and 7553b, and a ball 7552. The rotating part 71 includes an upper end cover 713a, a driven gear 711, and a lower end cover 713 b.
For convenience of description, the components in fig. 8 except the driving portion 73 are described below in order from top to bottom, respectively.
Fig. 9 is an enlarged view of the supporting portion and the rotating portion in fig. 8, and referring to fig. 8 and 9 together, in this embodiment, an upper supporting member 7551a is disposed at the uppermost end for fixedly connecting with the bottom surface of the center frame 10. An upper slide rail 7553a is provided below the upper support 7551a, and a ball 7552 is provided between the upper support 7551a and the upper slide rail 7553a, so that the upper slide rail 7553a can rotate with respect to the upper support 7551 a. An upper cover 713a is disposed below the upper rail 7553a, and a lower rail 7553b is disposed below the upper cover 713 a. That is, the upper end cap 713a is clamped between the upper rail 7553a and the lower rail 7553 b. A lower support 7551b is provided below the lower slide rail 7553b, and the lower support is fixedly connected to the upper support 7551a by a bolt, a screw, a rivet, or the like. Balls 7552 are provided between the lower slide rail 7553b and the lower support 7551b so that the lower slide rail 7553b can rotate with respect to the lower support 7551b, and since the upper cap 713a is sandwiched between the upper slide rail 7553a and the lower slide rail 7553b, the upper slide rail 7553a, the upper cap 713a, and the lower slide rail 7553b as a whole can rotate with respect to the upper support 7551a and the lower support 7551 b.
In other words, in the present embodiment, the upper support 7551a and the lower support 7551b may be regarded as an outer ring of the rolling first bearing 753 as a whole, and the upper rail 7553a and the lower rail 7553b may be regarded as an inner ring of the rolling first bearing 753 as a whole, that is, in some modifications, the rolling first bearing 753 may include a support (e.g., the upper support 7551a or the lower support 7551b) for fixing with the center frame 10 and a rail (e.g., the upper rail 7553a engaged with the upper support 7551a or the lower rail 7553b engaged with the lower support 7551b) for abutting against a contact position of the rotation part 71, and the balls 7552 may be provided between the rail and the support so that the rotation part 71 tightly coupled with the rail may rotate with respect to the support.
The slide rail can be any shape, for example, the upper slide rail 7553a and the lower slide rail 7553b can be selected from a circular slide rail, an arc slide rail, or a hollow annular slide rail.
With continued reference to fig. 8 and 9, optionally, the upper support 7551a can be multiple, and the multiple upper supports 7551a can be uniformly disposed on the outer edge of the upper slide rail 7553a to increase the supporting force so that the upper slide rail 7553a is more stable. Similarly, the lower support 7551b may be plural, and the plural lower supports 7551b are uniformly arranged along the lower slide rail 7553 b. For example, a specific example of four upper supports 7551a being uniformly disposed along the outer edge of the upper slide rail 7553a and four lower supports 7551b being uniformly disposed along the outer edge of the lower slide rail 7553b is shown in fig. 8 and 9. Of course, this embodiment also does not preclude the upper support 7551a and the lower support 7551b from being annular.
Further, a plurality of balls 7552 may be provided between the upper support 7551a and the upper rail 7553a, for example, two balls 7552 may be provided between the upper support 7551a and the upper rail 7553a, that is, when the upper support 7551a is plural, two balls 7552 are provided between each upper support 7551a and the upper rail 7553 a. For example, fig. 8 and 9 show four upper supports 7551a, and two balls 7552 are disposed between each upper support 7551a and the upper rail 7553 a. The rotational resistance of the upper rail 7553a can be reduced by providing a plurality of balls 7552 between the upper support 7551a and the upper rail 7553 a. Similarly, a plurality of balls 7552 may be disposed between the lower supporter 7551b and the lower slide rail 7553 b. For example, two balls 7552 are provided between each of the four lower supports 7551b and the lower slide rail 7553b shown in fig. 8 and 9.
With continued reference to fig. 8 and 9, a dust cover 77 may optionally be disposed outside the upper and lower rails 7553a and 7553b to contain the upper and lower rails 7553a and 7553b within the dust cover 77 to prevent dust from falling onto the upper and lower rails 7553a and 7553b and affecting the rotation of the upper and lower rails 7553a and 7553 b.
Further, in order to be engaged with the upper support member 7551a and the lower support member 7551b, a mounting port 771 is formed at the top end of the dust cap 77, and a portion of the upper support member 7551a and the lower support member 7551b for engaging with the balls 7552 is inserted into the dust cap 77 through the mounting port 771. It is understood that, in order to prevent the dust cap 77 from falling, the dust cap 77 may be directly fixed to the bottom surface of the center frame 10 by a fastener such as a bolt or a screw, or the dust cap 77 and the lower supporter 7551b may be fixedly coupled together. Further, although in the present embodiment, a part of the upper support 7551a and the lower support 7551b is located outside the dust cover 77, in other examples, the upper support 7551a and the lower support 7551b may be entirely accommodated in the dust cover 77, and at this time, the dust cover 77 is directly fixed to the bottom surface of the center frame 10 by a fastening member such as a bolt or a screw. Further, a plurality of positioning protrusions 773 are formed in the dust cover 77, the lower supporters 7551b may be spaced apart from the positioning protrusions 773 to reduce the shearing force applied to the screws when the lower supporters 7551b are connected to the dust cover 77, and furthermore, a positioning groove matching with the positioning protrusion 773 may be formed on the lower surface of the upper end cap 713 a.
With continued reference to fig. 8 and 9, a driven gear 711 drivingly connected to the driving portion 73 is provided below the upper end cover 713a, but of course, a driven gear may be used instead of the driven gear 711 as a driven member drivingly connected to the driving portion 73. In addition, if the dust cover 77 is provided outside the slide rail, the driven wheel should be disposed below the dust cover 77 to facilitate the transmission connection with the driving part 73.
A lower end cover 713b to which the foot stool 50 is mounted is provided below the driven gear 711, and a dust boot 79 as shown in fig. 8 and 9 is selectively interposed between the lower end cover 713b and the driven gear 711. The upper end cover 713a, the driven gear 711, and the lower end cover 713b are fixedly coupled together by fixing pins, bolts, rivets, or the like, so that when the driving belt 733 of the driving part 73 rotates the driven gear 711, the upper end cover 713a and the lower end cover 713b fixedly coupled to the driven gear 711 rotate accordingly. Specifically, the upper end cap 713a rotates with the upper and lower slide rails 7553a and 7553b relative to the upper and lower supports 7551a and 7551b, respectively. Of course, in the present embodiment, the driven gear 711 may be replaced by a driven gear or another member.
It should be understood that the upper end cover 713a and the lower end cover 713b of the rotation portion 71, and the dust boot 79 interposed between the lower end cover 713b and the driven gear 711 are not necessarily provided with structures. For example, in some modifications, the rotating part 71 may not have the lower end cover 713b, and in this case, the foot rest 50 may be fixed to the upper end cover 713a or the driven gear 711 (e.g., the lower end surface of the driven gear 711). That is, in the present embodiment, the rotation portion 71 may include an end cover and a follower. The end cap may include only the upper end cap 713a, or may include both the upper end cap 713a and the lower end cap 713 b; the driven member may be a driven wheel or driven gear 711. Specifically, the end cap is interposed between the upper rail 7553a and the lower rail 7553b, or is rotatably connected to the upper rail 7553a and/or the lower rail 7553b, the driven member is fixed to the end cap, and the foot rest 50 is fixed to the end cap.
For another example, in other modifications, the rotating part 71 may further have no upper end cover 713a, and at this time, the foot stool 50 is fixed to the driven gear 711 or an intermediate member connected to the driven gear 711, and the driven gear 711 is fixed to the upper slide rail 7553a and/or the lower slide rail 7553b so as to be rotatable with respect to the upper support 7551a and/or the lower support 7551 b.
With continued reference to fig. 8, a mounting portion is formed on the lower end cover 713b, and the foot stand 50 is mounted to the mounting portion by the coupling 60.
It should be noted that the upper sliding rail 7553a, the lower sliding rail 7553b, the upper end cap 713a, the lower end cap 713b, and the driven gear 711 may be made into a hollow structure, that is, the sliding rail, the end cap, and the driven member are made into a hollow structure for the adaptor of the pan/tilt head 90 to pass through. Through setting up like this, on the one hand can include the adaptor, and on the other hand can reduce the windage in the flight of unmanned aerial vehicle 1, and from the vision moreover, exposed part quantity has reduced, has just also further promoted the visual pleasing to the eye.
Further, in the present embodiment, there is also provided a landing gear of an unmanned aerial vehicle, that is, the landing gear includes the mounting mechanism 70 and the foot rest 50 described above. Still further, in this embodiment, still provide a frame of unmanned aerial vehicle, including undercarriage and centre frame 10 of the above-mentioned explanation promptly, the unmanned aerial vehicle of this embodiment can include above-mentioned frame and the cloud platform of setting in this frame below promptly.
Finally, although advantages associated with certain embodiments of the present technology have been described in the context of these embodiments, other embodiments may also include such advantages, and not all embodiments describe in detail all advantages of the invention, and the advantages objectively brought about by technical features in the embodiments should be construed as advantages of the invention over the prior art, all falling within the scope of the invention.
Claims (17)
1. The utility model provides an installation mechanism for installation unmanned aerial vehicle's foot rest, the foot rest sets up the below of unmanned aerial vehicle's centre frame, just the below of centre frame still is provided with the carrier that is used for carrying on payload, its characterized in that, installation mechanism includes:
a rotating part and a driving part;
the rotating part is used for being rotatably connected with the center frame and is used for being connected with the foot rest;
the driving part is used for being fixed with the center frame and driving the rotating part to rotate when the carrier rotates.
2. The mounting mechanism of claim 1 wherein the carrier is a pan and tilt head and the payload is an imaging device.
3. A mounting mechanism according to claim 1 or 2 wherein the rotatable portion is a hollow structure in an axial direction through which an adaptor for connecting the carrier and the steady rest passes.
4. The mounting mechanism of claim 1 or 2 further comprising a support portion for fixed connection to the center frame, the rotating portion being rotatably connected to the support portion.
5. The mounting mechanism of claim 4 wherein the support portion is a first bearing and the rotatable portion is at least partially mounted in the first bearing such that the rotatable portion is rotatable about an axis of the first bearing.
6. The mounting mechanism of claim 5 wherein the first bearing is a rolling bearing comprising: a support, a ball and a slide rail;
the supporting piece is used for being fixed with the center frame;
the ball is arranged between the support piece and the sliding rail;
the sliding rail is used for abutting against the contact position of the rotating part.
7. The mounting mechanism of claim 6 wherein the supports comprise at least one upper support and at least one lower support, the slide comprising: an upper slide rail and a lower slide rail;
the at least one supporting piece is uniformly arranged at the outer edge of the upper sliding rail, and the ball is arranged between the at least one supporting piece and the upper sliding rail;
the at least one lower supporting piece is uniformly arranged at the outer edge of the lower sliding rail, and the ball is also arranged between the at least one lower supporting piece and the lower sliding rail;
and a part of the rotating part is clamped between the upper slide rail and the lower slide rail.
8. The mounting mechanism of claim 6 wherein the rotating portion includes a follower in driving communication with the driving portion and in rotational communication with the support portion; or,
the rotating part comprises the driven part and an end cover, and the end cover comprises an upper end cover and a lower end cover;
the driven piece is fixed with the upper end cover and the lower end cover, the driven piece is arranged between the upper end cover and the lower end cover, the upper end cover is rotatably connected with the supporting part, and the lower end cover is used for fixing the foot rest.
9. The mounting mechanism of claim 8 further comprising a dust boot sandwiched between the driven member and the lower endcap.
10. The mounting mechanism of claim 8 wherein the slide, the upper cap, the lower cap and the follower are hollow structures for passage of an adapter connecting the carrier and the center frame.
11. The mounting mechanism of claim 6 further comprising a dust cap, wherein the slide rail is received within the dust cap, and wherein the dust cap is secured to the support member.
12. The mounting mechanism of claim 1 or 2 wherein the drive portion comprises a motor and a transmission member, the motor being in driving connection with the rotating portion via the transmission member.
13. The mounting mechanism of claim 12 wherein the transmission component comprises: the transmission gear is fixed with an output shaft of the motor, and the transmission gear is in transmission connection with the rotating part through the transmission belt.
14. The mounting mechanism of claim 13 wherein the drive section further comprises a motor mount for securing to the center frame, the motor being mounted on the motor mount; or,
the driving part further comprises a motor mounting seat and a bearing supporting seat, a second bearing is mounted on the bearing supporting seat, the motor is mounted on the motor mounting seat, and an output shaft of the motor penetrates through the second bearing and is fixed with the transmission gear.
15. A landing gear for an unmanned aerial vehicle, comprising a foot prop and a mounting mechanism as claimed in any one of claims 1 to 14.
16. A airframe of a drone, comprising a central frame and a landing gear of the drone of claim 15.
17. A drone, characterized in that it comprises a frame of the drone of claim 16 and a head arranged below the central frame of the frame.
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CN201820348688.6U CN207956094U (en) | 2018-03-14 | 2018-03-14 | Installing mechanism, undercarriage, rack and unmanned plane |
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CN201820348688.6U CN207956094U (en) | 2018-03-14 | 2018-03-14 | Installing mechanism, undercarriage, rack and unmanned plane |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019173990A1 (en) * | 2018-03-14 | 2019-09-19 | 深圳市大疆创新科技有限公司 | Mounting mechanism, landing gear, rack and unmanned aerial vehicle |
CN111717406A (en) * | 2020-06-17 | 2020-09-29 | 中国人民解放军陆军工程大学 | Unmanned aerial vehicle image acquisition system |
-
2018
- 2018-03-14 CN CN201820348688.6U patent/CN207956094U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019173990A1 (en) * | 2018-03-14 | 2019-09-19 | 深圳市大疆创新科技有限公司 | Mounting mechanism, landing gear, rack and unmanned aerial vehicle |
CN111717406A (en) * | 2020-06-17 | 2020-09-29 | 中国人民解放军陆军工程大学 | Unmanned aerial vehicle image acquisition system |
CN111717406B (en) * | 2020-06-17 | 2021-10-01 | 中国人民解放军陆军工程大学 | Unmanned aerial vehicle image acquisition system |
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Granted publication date: 20181012 |