WO2019128313A1 - 一种螺旋桨、动力组件及无人机 - Google Patents

一种螺旋桨、动力组件及无人机 Download PDF

Info

Publication number
WO2019128313A1
WO2019128313A1 PCT/CN2018/105291 CN2018105291W WO2019128313A1 WO 2019128313 A1 WO2019128313 A1 WO 2019128313A1 CN 2018105291 W CN2018105291 W CN 2018105291W WO 2019128313 A1 WO2019128313 A1 WO 2019128313A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking
connecting end
ring
clamping
propeller
Prior art date
Application number
PCT/CN2018/105291
Other languages
English (en)
French (fr)
Inventor
张海浪
孙维
罗东东
Original Assignee
深圳市道通智能航空技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市道通智能航空技术有限公司 filed Critical 深圳市道通智能航空技术有限公司
Publication of WO2019128313A1 publication Critical patent/WO2019128313A1/zh

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C27/00Rotorcraft; Rotors peculiar thereto
    • B64C27/04Helicopters
    • B64C27/12Rotor drives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C27/00Rotorcraft; Rotors peculiar thereto
    • B64C27/32Rotors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U30/00Means for producing lift; Empennages; Arrangements thereof
    • B64U30/20Rotors; Rotor supports
    • B64U30/29Constructional aspects of rotors or rotor supports; Arrangements thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U10/00Type of UAV
    • B64U10/10Rotorcrafts
    • B64U10/13Flying platforms
    • B64U10/14Flying platforms with four distinct rotor axes, e.g. quadcopters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U50/00Propulsion; Power supply
    • B64U50/10Propulsion
    • B64U50/19Propulsion using electrically powered motors

Definitions

  • Embodiments of the present application relate to the field of propeller technology, and in particular, to a propeller, a power component to which the propeller is applied, and a drone to which the power component is applied.
  • the unmanned aerial vehicle is a non-manned aerial vehicle that controls the flight attitude through radio remote control equipment and built-in programs. It is widely used in aerial photography because of its flexibility, quick response, driverless operation and low operational requirements. Plant protection, power inspection, disaster relief and many other fields. With the development of wireless Internet, wireless LAN and image processing technology, drones have been favored by more and more users.
  • the propeller is an important part of the power components of the drone. It is usually composed of a paddle and two or more blades distributed in an axisymmetric form. The blade is mounted on the paddle and the paddle is fixedly mounted on the drive. on. When the drive rotates, the blades are rotated together by the paddles to provide forward power to the drone.
  • the inventors have discovered that at present, the fixed connection between the paddle and the drive is generally achieved by a threaded structure.
  • the fixed connection of the threaded structure requires that the rotating shaft of the driving device must be threaded on the one hand, which increases the production cost of the driving device; on the other hand, tools such as a wrench are required to realize the assembly and disassembly between the paddle and the driving device. Therefore, it is extremely inconvenient to replace the paddle; on the other hand, when the propeller rotates at a high speed, the thread structure is prone to loosening, and it is easy to cause the propeller, which jeopardizes the flight safety of the drone.
  • the embodiment of the present application provides a propeller, a power component, and a drone, which can solve the problem that the propeller and the driving device in the existing drone are inconvenient to assemble and disassemble and easily cause the propeller.
  • one technical solution adopted by the present application is to provide a propeller including a paddle and at least two blades mounted on the paddle, the paddle for using the propeller Mounted to a rotating shaft of the driving device, the paddle includes: a main body portion, a locking portion extending from the main body portion, and a locking mechanism;
  • the locking mechanism is mounted on the locking portion, and the locking portion includes a fitting hole, and the fixing hole and the rotating shaft are fixed to each other by an interference fit when the locking mechanism is in a locking state .
  • the locking mechanism includes a locking ring and an adjustment device with a self-locking function
  • the locking ring is mounted on an outer surface of the locking portion, and the adjusting device is connected to two connecting ends of the locking ring;
  • the locking portion further includes a gap, the gap communicating with the mounting hole, and when the adjusting device brings the two connecting ends of the locking ring closer to each other, the gap can be made smaller, thereby
  • the assembly holes and the rotating shaft are fixed to each other by an interference fit.
  • the locking portion is provided with a blocking edge corresponding to the locking ring for preventing the locking ring from sliding axially relative to the locking portion.
  • the locking portion further includes a first clamping portion and a second clamping portion, the first clamping portion and the second clamping portion collectively forming the fitting hole, the gap Provided between the first clamping portion and the second clamping portion and in communication with the assembly hole;
  • the first clamping portion and the second clamping portion can be brought closer to each other to make the gap smaller, thereby making The fitting hole and the rotating shaft are fixed to each other by an interference fit.
  • the locking ring includes a first clamping ring and a second clamping ring disposed opposite each other, the first clamping ring and the second clamping ring when the locking mechanism is in a locked state Holding the first clamping portion and the second clamping portion respectively to bring the first clamping portion and the second clamping portion toward each other, thereby realizing the assembly hole and the rotating shaft The interference fit.
  • the first clamping ring includes a first connecting end and a second connecting end
  • the second clamping ring includes a third connecting end and a fourth connecting end
  • the adjusting device comprises a first adjusting device and Second adjustment device
  • the first adjusting device is connected to the first connecting end and the third connecting end, and adjusting the first adjusting device can make the first connecting end and the third connecting end close to or away from each other;
  • the second adjusting device is connected to the second connecting end and the fourth connecting end, and adjusting the second adjusting device enables the second connecting end and the fourth connecting end to be close to or away from each other.
  • the adjustment device is disposed at a location corresponding to the gap.
  • the adjusting device includes a stud and a cam wrench, one end of the stud is fixedly connected to the other connecting end of the locking ring through a connecting end of the locking ring, the screw
  • the other end of the column is hinged with the cam wrench, and the cam of the cam wrench is abutted against a connecting end of the locking ring, and the locking ring can be made when the cam wrench is rotated toward the rotating shaft
  • the two connections are close to each other.
  • the adjusting device further includes a rubber gasket disposed between the cam wrench and a connecting end of the locking ring, and the cam of the cam wrench is in contact with the rubber washer hold.
  • the adjustment device further includes a gasket groove, the rubber gasket is disposed in the gasket groove, and the gasket groove is disposed between the cam wrench and a connecting end of the locking ring.
  • the body portion is provided with a slit, one end of which is in communication with the gap.
  • the body portion is further provided with a side through hole that communicates with an end of the slit away from the gap.
  • the locking portion is provided with a nylon layer facing the surface of the rotating shaft.
  • a power assembly including: a driving device and a propeller as described above fixedly mounted on the driving device.
  • an unmanned aerial vehicle comprising: the power component as described above.
  • the utility model has the beneficial effects that the propeller of the propeller provided by the embodiment of the present application includes a main body portion, a locking portion extending from the main body, and a locking mechanism; the lock is different from the prior art.
  • a tightening mechanism is mounted on the locking portion, the locking portion includes a mounting hole, and when the locking mechanism is in a locked state, the mounting hole and the rotating shaft are fixed to each other by an interference fit, which can be fast
  • the paddle is fixedly mounted on the rotating shaft of the driving device; and when the locking mechanism is in the unlocked state, the fitting hole and the rotating shaft are clearance-fitted, so that the propeller can be realized without any auxiliary tools Quick disassembly.
  • the application of the propeller to the power assembly can realize simple and quick assembly and disassembly between the propeller and the driving device on the one hand, and on the other hand, the connection between the propeller and the driving device is improved after the assembly is completed. Still further, applying the power assembly including the propeller to the drone can improve the flight safety of the drone.
  • FIG. 1 is a schematic diagram of a usage scenario of a propeller and a power assembly according to an embodiment of the present application
  • FIG. 2 is an exploded perspective view of a power assembly provided by one embodiment of the present application.
  • Figure 3 is a perspective exploded view of the propeller of the power assembly shown in Figure 2;
  • Figure 4 is a perspective exploded view of the paddle of the propeller shown in Figure 3;
  • Figure 5 is a schematic structural view of the locking mechanism shown in Figure 4 in an unlocked state
  • Figure 6 is a schematic view showing the structure of the locking mechanism shown in Figure 4 in a locked state.
  • the propeller provided by the embodiment of the present application is a quick release type propeller capable of quick assembly/disassembly with a driving device.
  • the propeller includes a paddle and at least two blades mounted on the paddle, the propeller being mounted by its paddle on a rotating shaft of the drive unit.
  • the paddle includes a main body portion, a locking portion extending from the main body portion, and a locking mechanism; the locking portion extends in a direction corresponding to an axial direction of the rotating shaft, the locking portion includes an assembly hole, and the rotation of the driving device
  • the shaft is fitted in the mounting hole; the locking mechanism is mounted on the locking portion, and when the locking mechanism is in the locked state, the mounting hole and the rotating shaft can be fixed to each other by an interference fit, thereby
  • the paddle is firmly mounted on the rotating shaft of the driving device; when the locking mechanism is in the unlocked state, the fitting hole can be matched with the rotating shaft of the driving device, so that the propeller can be realized without any auxiliary tools Quick disassembly.
  • the propeller provided by the embodiment of the present application can be applied to any technical field involving a propeller, and is particularly suitable for the field of drone technology.
  • Embodiments of the present application can be applied to various motor-driven movable objects including, but not limited to, unmanned aerial vehicles (UAVs), ships, and robots.
  • UAVs unmanned aerial vehicles
  • FIG. 1 it is a schematic diagram of a three-dimensional structure of a propeller and a power component provided by an embodiment of the present application.
  • the drone 1000 includes: a body 110 and a machine extending from the body 110
  • the arm 120 and the power assembly 130 are respectively disposed on the arm 120.
  • the fuselage 110 generally includes a control circuit component composed of electronic components such as an MCU, and the control circuit component includes a plurality of control modules, such as a flight control module for controlling the flight attitude of the drone 1000, for navigating without A Beidou module of the human machine 1000, and a data processing module for processing environmental information acquired by an associated onboard device (eg, an imaging device).
  • the power assembly 130 is mounted to the arm 120 for powering the drone 1000 and driving the drone 1000 to fly and adjust the flight attitude.
  • the drone may also be other types of multi-rotor drones, such as a single-rotor drone, a double-rotor drone, a six-rotor drone, etc.; or, the unmanned
  • the machine may also be a tilt-rotor drone, which is not specifically limited in this embodiment of the present application.
  • the power assembly 130 includes a propeller 100 and a driving device 200.
  • the propeller 100 is mounted on a rotating shaft 201 of the driving device 200, and the driving device 200 is fixedly mounted on the arm 120.
  • the driving device 200 When the driving device 200 is in operation, its rotating shaft 201 drives the propeller 100 to rotate in a specific direction (ie, the rotating direction of the driving device 200: clockwise or counterclockwise), thereby providing the drone 1000 with moving power, which is driven.
  • the drone 1000 flies.
  • the driving device 200 may be any device capable of driving the rotation of the propeller 100.
  • it may include, but is not limited to, a brush motor, a brushless motor, a DC motor, a stepping motor, an AC induction motor, and the like.
  • the propeller 100 is a quick release type propeller capable of quick assembly or quick disassembly with the rotating shaft 201 of the driving device 200.
  • the propeller 100 includes a paddle 10, two blades 20, and two connecting members 30 for mounting the propeller 100 to the rotating shaft 201 of the driving device 200, two The blades 20 are connected to the paddle 10 by two connecting members 30, respectively.
  • the paddle 10 includes a body portion 11, a locking portion 12 extending from the body portion 11, and a locking mechanism 13.
  • the extending direction of the locking portion 12 coincides with the axial direction of the rotating shaft 201 for mounting the paddle 10 to the rotating shaft 201.
  • the locking portion 12 includes a first clamping portion 121a and a second clamping portion 121b, and the first clamping portion 121 and the second clamping portion 121b together form a mounting for the paddle 10 to the rotating shaft 201.
  • the mounting hole 121c (that is, the mounting hole 121c is a passage for the first clamping portion 121a and the second clamping portion 121b for arranging the rotating shaft 201), and the rotating shaft 201 of the driving device 200 is assembled to the assembly Inside the hole 121c.
  • a gap 121ab is provided between the first clamping portion 121a and the second clamping portion 121b, and the gap 121ab communicates with the fitting hole 121c, thereby, when the first clamping portion 121a and the second portion
  • the gap 121ab between the holding portions 121b becomes larger or smaller, the inner diameter of the fitting hole 121c can be changed, thereby changing the manner of fitting between the fitting hole 121c and the rotating shaft 201.
  • the first clamping portion 121a and the second clamping portion 121b are oppositely disposed, and the gap 121ab between the first clamping portion 121a and the second clamping portion 121b includes Two, this is mainly for increasing the deformation ability of the first clamping portion 121a and the second clamping portion 121b, and conveniently controlling the first clamping portion 121a and the second clamping portion 121b to approach or away from each other, lifting the assembly hole 121c Controllability of the inner diameter.
  • the gap 121ab between the first clamping portion 121a and the second clamping portion 121b may be provided only one piece, that is, one end of the first clamping portion 121a and the second clamping portion 121b. One end is connected, and a gap 121ab is left between the other end of the first clamping portion 121a and the other end of the second clamping portion 121b.
  • the first clamping portion 121a and the second clamping portion 121b may also be integral as long as the first clamping portion 121a and the second clamping portion 121b can function in the locking mechanism 13.
  • the inner diameter of the fitting hole 121c is adjusted to make an interference fit or a clearance fit between the fitting hole 121c and the rotating shaft 201.
  • the locking portion 12 (ie, the first clamping portion 121a and the second clamping portion 121b) may further be provided with a nylon layer toward the surface of the rotating shaft 201.
  • the friction between the locking portion 12 and the rotating shaft 201 can be enhanced by providing the nylon layer, so that the firmness of the connection between the propeller 100 and the rotating shaft 201 can be enhanced after the assembly is completed.
  • the main body portion 11 is provided with two connecting ends for connecting the two blades 20. Further, the main body portion 11 is further provided with a slit 111, and one end of the slit 111 communicates with the gap 121ab.
  • the deformation range of the first clamping portion 121a and the second clamping portion 121b can be increased by the slit 111 such that the root portion of the first clamping portion 121a (the "root"" is close to the body portion 11 when the assembly is performed.
  • the gap between the root portion of the second clamping portion 121b and the root portion of the second clamping portion 121b may become smaller, thereby increasing the locking portion 12 (ie, between the first clamping portion 121a and the second clamping portion 121b) and the rotating shaft 201
  • the contact area improves the stability after assembly.
  • the main body portion 11 is further provided with a side through hole 112, and the side through hole 112 and the slit 111 are away from the gap 121ab. One end is connected. Therefore, the stress received in the main body portion 11 can be dispersed by the transition of the arc-shaped side through hole 112, and the main body portion 11 can be prevented from being broken, and the life of the paddle 10 can be prolonged.
  • the provision of the slit 111 and the side through hole 112 in the main body portion 11 is only a preferred embodiment, and in other embodiments, the slit 111 may be omitted, and / Alternatively, the side through hole 112; or other alternative structure may be employed to increase the contact area of the locking portion 12 with the rotating shaft 201 in the assembled state, and/or to distribute the stress distribution in the main body portion 11.
  • the locking mechanism 13 includes a locking ring 131 and an adjustment device 132 with a self-locking function.
  • the locking ring 131 is mounted on the outer surface of the locking portion 12, and the adjusting device 132 is connected to the two connecting ends of the locking ring 131.
  • the two connecting ends of the locking ring 131 can be moved away from or close to each other. Further, the pressure applied to the locking shaft 12 by the locking ring 131 toward the rotating shaft 201 is adjusted.
  • the inner diameter of the locking ring 131 gradually becomes smaller, thereby applying pressure toward the rotating shaft 201 toward the first clamping portion 121a and the second clamping portion 121b.
  • the first clamping portion 121a and the second clamping portion 121b are brought closer to each other, the gap 121ab is reduced, and the inner diameter of the fitting hole 121c is made smaller, and the fitting hole 121c and the rotating shaft 201 are fixed to each other by an interference fit.
  • the propeller 100 is fixedly mounted to the rotating shaft 201 of the driving device 200.
  • the adjusting device 132 causes the two connecting ends of the locking ring 131 to move away from each other, the inner diameter of the locking ring 131 gradually becomes larger, and the rotating shaft 201 is applied to the first clamping portion 121a and the second clamping portion 121b.
  • the pressure becomes small, and the gap 121ab between the first clamping portion 121a and the second clamping portion 121b gradually becomes larger to return to the original position under the action of the external force, so that the inner diameter of the fitting hole 121c becomes large, so that A gap is left between the first clamping portion 121a and the second clamping portion 121b and the rotating shaft 201, and the locking portion 12 is slidable relative to the rotating shaft 201 to facilitate the disassembly of the propeller 100.
  • the locking portion 12 in order to prevent the locking ring 131 from sliding axially relative to the locking portion 12 during the high speed operation of the propeller 100 (wherein the axial sliding, that is, the axial direction along the rotating shaft 201 is upward or The sliding portion 12 brings a safety hazard.
  • the locking portion 12 is further provided with a blocking edge 122 corresponding to the locking ring 131.
  • the blocking edge 122 and the main body portion 11 jointly limit the locking ring 131.
  • the locking ring 131 includes a first clamping ring 131a and a second clamping ring 131b disposed opposite to each other.
  • the first clamping ring 131a and the second clamping ring 131b respectively clamp the first clamping portion 121a and the second clamping portion 121b to make the first clamping portion 121a and the second clamping portion
  • the holding portions 121b are brought closer to each other, thereby achieving an interference fit of the fitting hole 121c and the rotating shaft 201.
  • the first clamping ring 131a includes a first connecting end 131a1 and a second connecting end 131a2, and the second clamping ring 131b includes a third connecting end 131b1 and a fourth connecting end 131b2.
  • the first connecting end 131a1 is opposite to the third connecting end 131b1, and the second connecting end 131a2 is opposite to the fourth connecting end 131b2.
  • the first connecting end 131a1 and the fourth connecting end 131b2 are both included.
  • the through hole, the second connecting end 131a2 and the third connecting end 131b1 each include a threaded hole.
  • the first connection end 131a1 and the second connection end 131a2 may each include a through hole
  • the third connection end 131b1 and the fourth connection end 131b2 respectively include a threaded hole as long as it is opposite.
  • One of the two connecting ends is provided to include a through hole, and the other includes a threaded hole.
  • first connecting end 131a1, the second connecting end 131a2, the third connecting end 131b1 and the fourth connecting end 131b2 are all lug structures, and the function thereof is to facilitate the assembly of the locking mechanism 13. It is to be understood that in other embodiments, the first connection end 131a1, the second connection end 131a2, the third connection end 131b1, and the fourth connection end 131b2 may be other types of connection structures. This is not specifically limited.
  • the first clamping portion 121a and the second clamping portion 121b are better when subjected to the force of the locking ring 131.
  • the adjustment device 132 can be disposed at a position corresponding to the gap 121ab by moving closer to the rotation shaft 201 and reducing the gap 121ab between the first clamping portion 121a and the second clamping portion 121b.
  • the first clamping ring 131a is completely fitted to the outer surface of the first clamping portion 121a
  • the second clamping ring 131b completely conforms to the outer surface of the second clamping portion 121b, the first clamping ring 131a and the second clamping ring.
  • the joint of 131b is aligned with the gap 121ab between the first clamping portion 121a and the second clamping portion 121b, so that the first clamping ring 131a and the second clamping ring 131b can be better toward the first clamping when they are close to each other.
  • the portion 121a and the second holding portion 121b are pressed to bring the first holding portion 121a and the second holding portion 121b closer to each other, and the inner diameter of the fitting hole 121c is reduced, and finally the fitting hole 121c is interference-fitted with the rotating shaft 201.
  • the locking ring 131 and the locking can also be locked.
  • a positioning device is disposed between the outer surfaces of the portion 12, for example, the locking portion 12 is provided with a protrusion toward the surface of the locking ring 131, and the locking ring 131 faces the surface of the locking portion 12 correspondingly to provide a groove, when the lock After the tight ring 131 and the locking portion 12 are assembled, the gap between the two connecting ends of the locking ring 131 and the gap 121ab between the first clamping portion 121a and the second clamping portion 121b in the locking portion 12 correspond.
  • the adjustment device 132 includes a first adjustment device 132a and a second adjustment device 132b.
  • the first adjusting device 132a is connected to the first connecting end 131a1 and the third connecting end 131b1, and the first adjusting device 132a is adjusted to make the first connecting end 131a1 and the third connecting end 131b1 close to or away from each other;
  • the second adjusting device 132b is connected to the second The connecting end 131a2 and the fourth connecting end 131b2 adjust the second adjusting device 132b to bring the second connecting end 131a2 and the fourth connecting end 131b2 closer to or away from each other.
  • the first adjusting device 132a and the second adjusting device 132b may have the same structure. Therefore, only the first adjusting device 132a will be described below as an example.
  • the first adjusting device 132 a includes a cam wrench 1321 , a stud 1322 , a rubber washer 1323 , and a washer groove 1324 .
  • the gasket groove 1324 is disposed on a side of the first connection end 131a1 away from the third connection end 131b1, and the rubber gasket 1323 is installed in the gasket groove 1324; one end of the stud 1322 extends through the rubber gasket 1323, the gasket groove 1324, and the first connection end 131a1.
  • the through hole is screwed with the threaded hole of the third connecting end 131b1; the other end of the stud 1322 is hinged with the cam wrench 1321, for example, a rivet is connected, and the cam wrench 1321 is rotatable about the rivet shaft; the cam of the cam wrench 1321 is abutted against the rubber washer 1323 hold.
  • the cam of the cam wrench 1321 When the cam wrench 1321 is rotated toward the rotating shaft 201, the cam of the cam wrench 1321 will press the rubber washer 1323, thereby driving the first connecting end 131a1 of the first clamping ring 131a to move to the third connecting end 131b1 of the second clamping ring 131b. That is, the first connection end 131a1 of the first clamp ring 131a and the third connection end 131b1 of the second clamp ring 131b are brought close to each other.
  • the pressure of the locking ring 131 corresponding to the locking portion 12 can be adjusted when the cam wrench 1321 is rotated to different positions, thereby adjusting the locking portion 12 and the rotating shaft. The friction between 201.
  • the wear resistance of the first connecting end 131a1 and the friction between the cam of the cam wrench 1321 and the first connecting end 131a1 are enhanced by providing the rubber washer 1323 so that the friction is caused multiple times.
  • the fastening of the locking portion 12 to the rotating shaft 201 can be ensured after the cam wrench 1321 is tilted.
  • the rubber gasket 1323 may be omitted or replaced with other structures.
  • the rubber gasket 1323 is limited and protected by providing the gasket groove 1324. In other embodiments, the gasket groove 1324 can also be omitted.
  • one end of the stud 1322 away from the cam wrench 1321 is fixed to one connecting end of the clamping ring by screwing, so that the adjusting device 132 can be conveniently mounted on the locking ring 131.
  • other structures may be used to fix the end of the stud 1322 away from the cam wrench 1321 to one end of the clamping ring.
  • the end of the stud 1322 away from the cam wrench 1321 is provided with a pin hole. The pinning method is fixed to one connection end of the clamp ring.
  • two adjustment devices 132 may be assembled first: the cam wrench is assembled by means of a rivet connection. 1321 and studs 1322, rubber gasket 1323 is placed in the gasket groove 1324, and the end of the stud 1322 away from the cam wrench 1321 penetrates the rubber gasket 1323 and the gasket groove 1324 until the cam of the cam wrench 1321 abuts the rubber gasket 1323.
  • the locking ring 131 is installed: the first clamping ring 131a is respectively mounted in the groove formed by the blocking edge 122 of the first clamping portion 121a and the main body portion 11, and the second clamping ring 131b is mounted on the second The blocking edge 122 of the clamping portion 121b is in the groove formed by the body portion 11.
  • the locking ring 131 and the adjusting device 132 are connected: the first connecting end 131a1 of the first clamping ring 131a and the third connecting end 131b1 of the second clamping ring 131b are connected by the first adjusting device 132a, specifically, the stud 1322 is away from One end of the cam wrench 1321 is threadedly connected to the threaded hole of the third connecting end 131b1 through the through hole of the first connecting end 131a1 until the washer slot 1324 and the first connecting end 131a1 are opposite to the side of the third connecting end 131b1.
  • the second connecting end 131a2 of the first clamping ring 131a and the fourth connecting end 131b2 of the second clamping ring 131b are connected by the second adjusting device 132b.
  • the two blades 20 are mounted to the two connecting ends of the main body portion 11 by means of two connecting members 30.
  • the user can first adjust the locking mechanism 13 to the unlocked state as shown in FIG. 5, that is, the cam wrench 1321 is rotated outward to make the cam wrench 1321 substantially
  • the studs 1322 are parallel.
  • the distance between the first connecting end 131a1 and the third connecting end 131b1 (and/or the second connecting end 131a2 and the fourth connecting end 131b2) is the largest, and the first clamping ring 131a and the second
  • the clamping ring 131b has the minimum pressure applied to the first clamping portion 121a and the second clamping portion 121b, respectively, so that the gap 121ab between the first clamping portion 121a and the second clamping portion 121b is maximized, and the first clamping portion
  • the inner diameter of the fitting hole 121c between the 121a and the second clamping portion 121b is larger than the rotating shaft 201, so that the paddle 10 of the propeller 100 can slide relative to the rotating shaft 201; when reaching a suitable position, the locking mechanism 13 can be Adjusted to the locked state as shown in FIG.
  • the gap 121ab becomes smaller, so that the inner diameter of the fitting hole 121c becomes smaller.
  • the locking mechanism 13 reaches the locking state as shown in FIG. 6, the fitting hole 121c is interference-fitted with the rotating shaft 201, and the locking portion 12 rotates. The frictional force between the shafts 201 is increased, so that the propeller 100 is quickly fixedly mounted on the rotating shaft 201.
  • the locking mechanism 13 can also be adjusted to the unlocked state by the manner as described above, and then the propeller 100 can be directly removed from the rotating shaft 201.
  • the locking ring 131 includes a first clamping ring 131a and a second clamping ring 131b, and connects the first clamping ring 131a and the second clamping ring 131b through two adjusting devices 132, On the one hand, in order to enlarge the pressure adjustment range of the locking ring 131 to the locking portion 12, on the other hand, in order to facilitate the mounting of the locking mechanism 13 on the locking portion 12.
  • the first clamping ring 131a and the second clamping ring 131b may also be an annular whole body, that is, one connecting end (eg, the second connecting end 131a2) of the first clamping ring 131a and the second One connection end of the clamp ring 131b (for example, the fourth connection end 131b2) is fixedly connected, and the other connection end of the first clamp ring 131a (for example, the first connection end 131a1) and the other connection end of the second clamp ring 131b (
  • the third connecting end 131b1) constitutes two connecting ends of the locking ring 131.
  • the locking mechanism 13 can be constructed only by adapting an adjusting device 132.
  • the adjusting device 132 is mainly composed of the cam wrench 1321 and the stud 1322, and the operation mode is relatively simple, and the user is relatively easy to use.
  • the adjusting device 132 may also be other structures with a self-locking function.
  • the adjusting device 132 may include a buckle, a locking hook and a locking cover, and one of the locking cover and the locking ring 131. The connecting end is connected, and the locking hook is fixed to the other connecting end of the locking ring 131.
  • One end of the locking hook is hinged to the lower side of the inner side of the locking cover, and the other end can be engaged with the locking hook, so that when the locking buckle is engaged with the locking hook, The two connecting ends of the locking ring 131 are brought close to each other, and when the locking buckle is released, the two connecting ends of the locking ring 131 can be moved away from each other.
  • the locking mechanism 13 includes a locking ring 131 and an adjusting device 132 with a self-locking function, and the force of the locking portion 12 can be increased by providing the locking ring 131.
  • the area increases the firmness of the locking mechanism 13.
  • the locking mechanism 13 may also include only the adjusting device 132 with a self-locking function, the adjustment The device may be disposed between the first clamping portion 121a and the second clamping portion 121b as long as the size of the gap 121ab between the first clamping portion 121a and the second clamping portion 121b can be adjusted.
  • An embodiment of the present application also provides an unmanned aerial vehicle.
  • the drone includes a fuselage, a body arm from a body color, and a power assembly as described above, the power assembly being disposed on the arm for providing flight power to the unmanned aerial vehicle.
  • the paddle of the propeller provided by the embodiment of the present application includes a main body portion, a locking portion extending from the main body portion, and a locking mechanism, and the locking mechanism is installed in the same manner as the prior art.
  • the locking portion includes a mounting hole, and when the locking mechanism is in the locked state, the mounting hole and the rotating shaft are fixed to each other by an interference fit, and the paddle can be quickly fixedly mounted On the rotating shaft of the driving device; when the locking mechanism is in the unlocked state, the inner diameter of the mounting hole becomes larger, so that the clearance between the mounting hole and the rotating shaft is matched, thereby enabling the paddle to be opposite to the driving device
  • the rotating shaft slides, allowing quick disassembly of the propeller without the aid of any auxiliary tools.
  • the application of the propeller to the power assembly can realize simple and quick assembly and disassembly between the propeller and the driving device on the one hand, and on the other hand, the connection between the propeller and the driving device is improved after the assembly is completed. Still further, applying the power assembly including the propeller to the drone can improve the flight safety of the drone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Motor Power Transmission Devices (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种螺旋桨(100)、动力组件(130)及无人机(1000)。该螺旋桨(100)包括:桨榖(10)和安装在所述桨榖(10)上的至少两个桨叶(20),所述桨榖(10)用于将所述螺旋桨(100)安装至驱动装置(200)的转动轴(201)上,所述桨榖(10)包括:主体部(11)、锁紧机构(13)和锁紧部(12),所述锁紧部(12)包括装配孔(121c);所述锁紧机构(13)安装于所述锁紧部(12),当所述锁紧机构(13)处于锁紧状态时,所述装配孔(121c)与所述转动轴(201)通过过盈配合而彼此固定。通过上述方式,能够实现螺旋桨(100)的快速装配和拆卸,同时提升螺旋桨(100)与转动轴(201)之间的连接的稳固性。

Description

一种螺旋桨、动力组件及无人机
本申请要求于2017年12月27日提交中国专利局、申请号为201711444549X、申请名称为“一种螺旋桨、动力组件及无人机”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及螺旋桨技术领域,特别是涉及一种螺旋桨、应用该螺旋桨的动力组件以及应用该动力组件的无人机。
背景技术
无人机是一种通过无线电遥控设备和内置的程序来控制飞行姿态的不载人飞行器,由于其具有机动灵活、反应快速、无人驾驶、操作要求低等优点,现已广泛应用于航拍、植保、电力巡检、救灾等众多领域。随着无线互联网、无线局域网和图像处理技术的发展,无人机更是得到了越来越多用户的青睐。
螺旋桨是无人机的动力组件中的重要组成部分,其通常由桨榖和两个或者多个呈轴对称形式分布的桨叶组成,桨叶安装在桨榖上,桨榖固定安装在驱动装置上。当驱动装置转动时,通过桨榖带动桨叶一起旋转,从而为无人机提供前进的动力。
在实现本申请的过程中,发明人发现:目前,桨榖和驱动装置之间的固定连接一般通过螺纹结构来实现。然而,通过螺纹结构的固定连接方式一方面要求驱动装置的转动轴上必须带有螺纹,增加了驱动装置的生产成本;另一方面需要扳手等工具才能实现桨榖与驱动装置之间的装拆,从而更换桨榖极其不便;再一方面在螺旋桨高速旋转时螺纹结构容易产生松动,并且容易造成射桨,危害无人机的飞行安全。
因此,现有的无人机螺旋桨与驱动装置之间的固定方式还有待于改进和发展。
发明内容
本申请实施例提供一种螺旋桨、动力组件及无人机,能够解决现有无人机中螺旋桨与驱动装置之间装拆不便且容易造成射桨的问题。
为解决上述技术问题,本申请采用的一个技术方案是:提供一种螺旋桨,该螺旋桨包括桨榖和安装在所述桨榖上的至少两个桨叶,所述桨榖用于将所述螺旋桨安装至驱动装置的转动轴上,所述桨榖包括:主体部,自所述主体部延伸的锁紧部,以及,锁紧机构;
所述锁紧机构安装于所述锁紧部,所述锁紧部包括装配孔,当所述锁紧机构处于锁紧状态时,所述装配孔与所述转动轴通过过盈配合而彼此固定。
在一些实施例中,所述锁紧机构包括锁紧环和带有自锁功能的调节装置;
所述锁紧环安装于所述锁紧部的外表面,所述调节装置连接所述锁紧环的两个连接端;
所述锁紧部上还包括间隙,所述间隙连通所述装配孔,当所述调节装置使所述锁紧环的两个连接端相互靠近时,可使所述间隙变小,从而使所述装配孔与所述转动轴通过过盈配合而彼此固定。
在一些实施例中,所述锁紧部对应所述锁紧环设置有阻挡沿,用于防止所述锁紧环相对所述锁紧部轴向滑动。
在一些实施例中,所述锁紧部还包括第一夹持部和第二夹持部,所述第一夹持部和所述第二夹持部共同形成所述装配孔,所述间隙设置在所述第一 夹持部与所述第二夹持部之间,并且与所述装配孔连通;
当所述调节装置使所述锁紧环的两个连接端相互靠近时,可使所述第一夹持部与所述第二夹持部向彼此靠拢,使所述间隙变小,从而使所述装配孔与所述转动轴通过过盈配合而彼此固定。
在一些实施例中,所述锁紧环包括相对设置的第一夹环和第二夹环,当所述锁紧机构处于锁紧状态时,所述第一夹环和所述第二夹环分别夹持所述第一夹持部和所述第二夹持部而使所述第一夹持部与所述第二夹持部向彼此靠拢,从而实现所述装配孔与所述转动轴的过盈配合。
在一些实施例中,所述第一夹环包括第一连接端和第二连接端,所述第二夹环包括第三连接端和第四连接端,所述调节装置包括第一调节装置和第二调节装置;
所述第一调节装置连接所述第一连接端与所述第三连接端,调整所述第一调节装置可使所述第一连接端与所述第三连接端相互靠近或远离;
所述第二调节装置连接所述第二连接端与所述第四连接端,调整所述第二调节装置可使所述第二连接端与所述第四连接端相互靠近或远离。
在一些实施例中,所述调节装置设置于与所述间隙对应的位置处。
在一些实施例中,所述调节装置包括螺柱和凸轮扳手,所述螺柱的一端贯穿所述锁紧环的一个连接端与所述锁紧环的另一个连接端固定连接,所述螺柱的另一端与所述凸轮扳手铰接,所述凸轮扳手的凸轮与所述锁紧环的一个连接端抵持,当所述凸轮扳手向所述转动轴转动时,可使所述锁紧环的两个连接端相互靠近。
在一些实施例中,所述调节装置还包括橡胶垫圈,所述橡胶垫圈设置于 所述凸轮扳手与所述锁紧环的一个连接端之间,所述凸轮扳手的凸轮与所述橡胶垫圈抵持。
在一些实施例中,所述调节装置还包括垫圈槽,所述橡胶垫圈设置于所述垫圈槽内,所述垫圈槽设置于所述凸轮扳手与所述锁紧环的一个连接端之间。
在一些实施例中,所述主体部设置有缝隙,所述缝隙的一端与所述间隙连通。
在一些实施例中,所述主体部还设置有侧边通孔,所述侧边通孔与所述缝隙远离所述间隙的一端连通。
在一些实施例中,所述锁紧部朝向所述转动轴的表面设置有尼龙层。
为解决上述技术问题,本申请采用的另一个技术方案是:提供一种动力组件,该动力组件包括:驱动装置和固定安装于所述驱动装置上的如上所述的螺旋桨。
为解决上述技术问题,本申请采用的又一个技术方案是:提供一种无人机,该无人机包括:如上所述的动力组件。
本申请实施例的有益效果是:区别于现有技术的情况,本申请实施例提供的螺旋桨的桨榖包括主体部,自所述主体延伸的锁紧部,以及,锁紧机构;所述锁紧机构安装于所述锁紧部,所述锁紧部包括装配孔,当所述锁紧机构处于锁紧状态时,所述装配孔与所述转动轴通过过盈配合而彼此固定, 能够快速将桨榖固定安装于驱动装置的转动轴上;而当所述锁紧机构处于解锁状态时,所述装配孔与所述转动轴之间间隙配合,从而无需借助任何辅助工具即可实现螺旋桨的快速拆卸。进一步地,将该螺旋桨应用于动力组件,一方面能够实现螺旋桨与驱动装置之间的简单、快速装拆,另一方面在完成装配后也提升了螺旋桨与驱动装置之间的连接的牢固性。再进一步地,将包括该螺旋桨的动力组件应用于无人机上,能够提升该无人机的飞行安全。
附图说明
一个或多个实施例通过与之对应的附图中的图片进行示例性说明,这些示例性说明并不构成对实施例的限定,附图中具有相同参考数字标号的元件表示为类似的元件,除非有特别申明,附图中的图不构成比例限制。
图1是本申请实施例提供螺旋桨和动力组件的使用场景的示意图;
图2是本申请其中一个实施例提供的动力组件的立体结构分解图;
图3是图2所示的动力组件的螺旋桨的立体结构分解图;
图4是图3所示的螺旋桨的桨榖的立体结构分解图;
图5是图4所示的锁紧机构处于解锁状态下的结构示意图;
图6是图4所示的锁紧机构处于锁紧状态下的结构示意图。
具体实施方式
为了便于理解本申请,下面结合附图和具体实施例,对本申请进行更详细的说明。需要说明的是,当元件被表述“固定于”另一个元件,它可以直接在另一个元件上、或者其间可以存在一个或多个居中的元件。当一个元件被表述“连接”另一个元件,它可以是直接连接到另一个元件、或者其间可以存在一个或多个居中的元件。本说明书所使用的术语“上”、“下”、“左”、“右”、“水平的”、“垂直的”以及类似的表述只是为了说明的 目的。
除非另有定义,本说明书所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的,不是用于限制本申请。此外,下面所描述的本申请各个实施方式中所涉及到的技术特征只要彼此之间未构成冲突就可以相互组合。本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
本申请实施例提供的螺旋桨是一种能够与驱动装置实现快速装配/拆卸的快拆型螺旋桨。该螺旋桨包括一个桨榖和安装在该桨榖上的至少两个桨叶,该螺旋桨通过其桨榖安装于驱动装置的转动轴上。其中,该桨榖包括主体部,自主体部延伸的锁紧部,以及锁紧机构;该锁紧部的延伸方向与转动轴的轴线方向一致,该锁紧部包括装配孔,驱动装置的转动轴装配于该装配孔内;该锁紧机构安装于锁紧部,当该锁紧机构处于锁紧状态时,可以使所述装配孔与所述转动轴通过过盈配合而彼此固定,从而将桨榖牢固地安装在驱动装置的转动轴上;当该锁紧机构处于解锁状态时,可以使所述装配孔与驱动装置的转动轴之间间隙配合,从而无需借助任何辅助工具即可实现螺旋桨的快速拆卸。
本申请实施例提供的螺旋桨能够适用于任意涉及螺旋桨的技术领域,尤其适用于无人机技术领域。
具体地,下面结合说明书附图对本申请实施例提供的螺旋桨、动力组件及无人机进行详细说明。
本申请实施例可以应用到各种电机驱动的可移动物体上,包括但不限于 无人飞行器(unmanned aerial vehicle,UAV),轮船,机器人。现以无人飞行器为例进行说明。如图1所示,是本申请实施例提供的螺旋桨和动力组件的其中一个使用场景——无人机的立体结构示意图,该无人机1000包括:机身110、自机身110延伸的机臂120以及分别设置在机臂120上的动力组件130。
其中,机身110内通常包括由MCU等电子元器件组成的控制电路组件,该控制电路组件包括多个控制模块,如,用于控制无人机1000飞行姿态的飞行控制模块、用于导航无人机1000的北斗模块、以及用于处理相关机载设备(如,摄像装置)所获取的环境信息的数据处理模块等。动力组件130安装于机臂120,用于为无人机1000提供动力,并带动无人机1000飞行以及进行飞行姿态的调整。
其中,可以理解的是,在本申请实施例中,仅以四旋翼无人机为例进行详细说明,但其并不用于限定本申请。在其他的一些实施例中,该无人机也可以是其他类型的多旋翼无人机,比如:单旋翼无人机、双旋翼无人机、六旋翼无人机等;或者,该无人机还可以是倾转旋翼无人机,本申请实施例对此不作具体限定。
如图2所示,为本申请其中一个实施例提供的动力组件的立体结构分解图,在本实施例中,该动力组件130包括螺旋桨100和驱动装置200。螺旋桨100安装于驱动装置200的转动轴201上,驱动装置200固定安装于机臂120上。当驱动装置200运转时,其转动轴201带动螺旋桨100沿着特定的方向(即驱动装置200的转动方向:顺时针方向或者逆时针方向)转动,从而为无人机1000提供移动的动力,带动无人机1000飞行。
其中,该驱动装置200可以是任意能够驱动螺旋桨100转动的装置,比如,其可以包括但不限于:有刷电机、无刷电机、直流电机、步进电机、交流感应电机等。
特别地,在本申请实施例中,螺旋桨100是一种快拆型螺旋桨,能够与驱动装置200的转动轴201进行快速装配或者快速拆卸。
具体地,请参阅图3,该螺旋桨100包括一个桨榖10、两个桨叶20以及两个连接件30,桨榖10用于将螺旋桨100安装至驱动装置200的转动轴201上,两个桨叶20分别通过两个连接件30与桨榖10连接在一起。
其中,可以理解的是,在本实施例中,仅以两个桨叶和两个连接件为例进行说明,但不用于限定发明实施例,在其他的一些实施例中,还可以包括更多数量的桨叶以及与该桨叶的数量相对应的连接件。
请继续一并参阅图4,该桨榖10包括主体部11、自主体部11延伸的锁紧部12和锁紧机构13。其中,锁紧部12的延伸方向与转动轴201的轴线方向一致,用于将桨榖10安装至转动轴201上。
具体地,该锁紧部12包括第一夹持部121a和第二夹持部121b,第一夹持部121和第二夹持部121b共同形成一个用于将桨榖10安装至转动轴201的装配孔121c(即,该装配孔121c为第一夹持部121a和第二夹持部121b围成的用于套设转动轴201的通道),驱动装置200的转动轴201装配于该装配孔121c内。特别地,在本实施例中,第一夹持部121a和第二夹持部121b之间设置有间隙121ab,该间隙121ab与装配孔121c连通,从而,当第一夹持部121a和第二夹持部121b之间的间隙121ab变大或者变小时可以改变装配孔121c的内径,进而改变装配孔121c与转动轴201之间的配合方式。
其中,可以理解的是,在本实施例中,第一夹持部121a和第二夹持部121b是相对设置的,第一夹持部121a和第二夹持部121b之间的间隙121ab包括两条,这主要是为了增大第一夹持部121a和第二夹持部121b的形变能力,方便控制第一夹持部121a和第二夹持部121b相互靠近或者远离,提升装配孔121c内径大小的可控性。在其他的一些实施例中,第一夹持部121a和第二夹持部121b之间的间隙121ab也可以只设置一条,即,第一夹持部121a的一端与第二夹持部121b的一端连接,第一夹持部121a的另一端与第二夹持部121b的另一端之间留有间隙121ab。或者,在又一些实施例中,第一夹持部121a和第二夹持部121b也可以是一体的,只要第一夹持部121a和第二夹持部121b能够在锁紧机构13的作用下,调整装配孔121c的内径大小,以使装配孔121c与转动轴201之间过盈配合或者间隙配合即可。
其中,在一些实施例中,锁紧部12(即,第一夹持部121a和第二夹持部121b)朝向转动轴201的表面还可以设置有尼龙层。通过设置该尼龙层可以增强锁紧部12与转动轴201之间的摩擦力,从而在完成装配后能够增强螺旋桨100与转动轴201之间的连接的牢固性。
具体地,在本实施例中,主体部11设置有两个连接端,用于连接两个桨叶20。此外,主体部11还设置有缝隙111,该缝隙111的一端与间隙121ab连通。通过该缝隙111可以增大第一夹持部121a和第二夹持部121b的形变范围,使得在进行装配时,第一夹持部121a的根部(所述“根部”即靠近主体部11处)和第二夹持部121b的根部之间的间隙可以变得更小,从而增大锁紧部12(即,第一夹持部121a和第二夹持部121b)与转动轴201之间的接触面积,提升装配后的稳固性。进一步地,为了避免在装配状态下主体部 11内部受到的应力过于集中,在本实施例中,主体部11还设置有侧边通孔112,该侧边通孔112与该缝隙111远离间隙121ab的一端连通。从而,通过圆弧状的侧边通孔112的过渡可以分散主体部11内受到的应力,避免主体部11断裂,延长桨榖10的寿命。
其中,可以理解的是,在本实施中,在主体部11上设置缝隙111以及侧边通孔112仅为较优实施方式,在其他的一些实施例中,也可以省略该缝隙111,和/或,侧边通孔112;或者,也可以采用其他的替代结构来增大装配状态下锁紧部12与转动轴201的接触面积,和/或,分散主体部11内的应力分布。
具体地,在本实施例中,锁紧机构13包括锁紧环131和带有自锁功能的调节装置132。锁紧环131安装于锁紧部12的外表面,调节装置132连接锁紧环131的两个连接端,通过调节该调节装置132可使锁紧环131的两个连接端相互远离或者靠近,进而调节锁紧环131对锁紧部12施加的朝向转动轴201的压力。
当调节装置132使锁紧环131的两个连接端相互靠近时,锁紧环131的内径逐渐变小,从而向第一夹持部121a和第二夹持部121b施加朝向转动轴201的压力,使第一夹持部121a和第二夹持部121b向彼此靠拢,间隙121ab变小,进而使装配孔121c的内径变小,装配孔121c与转动轴201通过过盈配合而彼此固定,由此,螺旋桨100固定安装于驱动装置200的转动轴201。反之,当调节装置132使锁紧环131的两个连接端相互远离时,锁紧环131的内径逐渐变大,对第一夹持部121a和第二夹持部121b施加的朝向转动轴201的压力变小,在外力减小的作用下,第一夹持部121a和第二夹持部121b 之间的间隙121ab逐渐变大以恢复到原始位置,从而装配孔121c的内径变大,使得第一夹持部121a和第二夹持部121b与转动轴201之间留有空隙,锁紧部12可相对转动轴201滑动,方便拆卸螺旋桨100。
其中,本实施例中,为了防止在螺旋桨100高速运转的过程中锁紧环131相对锁紧部12轴向滑动(其中,所述轴向滑动即:沿着转动轴201的轴向方向向上或者向下滑动),带来安全隐患,锁紧部12还对应锁紧环131设置有阻挡沿122,该阻挡沿122与主体部11共同对锁紧环131进行限位。
具体地,请继续参阅图4,在本实施例中,锁紧环131包括相对设置的第一夹环131a和第二夹环131b。当锁紧机构13处于锁紧状态时,第一夹环131a和第二夹环131b分别夹持第一夹持部121a和第二夹持部121b而使第一夹持部121a与第二夹持部121b向彼此靠拢,从而实现装配孔121c与转动轴201的过盈配合。
其中,第一夹环131a包括第一连接端131a1和第二连接端131a2,第二夹环131b包括第三连接端131b1和第四连接端131b2。其中,第一连接端131a1与第三连接端131b1相对设置,第二连接端131a2与第四连接端131b2相对设置。进一步地,在本实施例中,为了方便安装和使用调节装置132,以及,提升第一夹环131a和第二夹环131b的可替换性,第一连接端131a1和第四连接端131b2均包括通孔,第二连接端131a2和第三连接端131b1均包括螺纹孔。但可以理解的是,在另一些实施例中,也可以是第一连接端131a1和第二连接端131a2均包括通孔,第三连接端131b1和第四连接端131b2均包括螺纹孔,只要相对设置的两个连接端一个包括通孔,另一个包括螺纹孔即可。
其中,在本实施例中,第一连接端131a1、第二连接端131a2、第三连接端131b1以及第四连接端131b2均为凸耳结构,其作用是方便进行锁紧机构13的装配。可以理解的是,在其他的一些实施例中,第一连接端131a1、第二连接端131a2、第三连接端131b1以及第四连接端131b2也可以是其他类型的连接结构,本申请实施例对此不作具体限定。
其中,在本实施例中,为了增强锁紧环131对锁紧部12的压力效果,使第一夹持部121a和第二夹持部121b在受到锁紧环131的作用力时更好地向转动轴201靠拢,减小第一夹持部121a与第二夹持部121b之间的间隙121ab,可以将调节装置132设置于与间隙121ab对应的位置处。具体为,使第一夹环131a完全贴合第一夹持部121a的外表面,第二夹环131b完全贴合第二夹持部121b的外表面,第一夹环131a与第二夹环131b的连接处对齐第一夹持部121a与第二夹持部121b之间的间隙121ab,从而,当第一夹环131a和第二夹环131b相互靠近时可以更好地向第一夹持部121a和第二夹持部121b施压,使第一夹持部121a和第二夹持部121b相互靠近,减小装配孔121c的内径,最终使装配孔121c与转动轴201过盈配合。
进一步地,为了方便用户在装配时更好地定位锁紧环131的安装位置,以及防止在螺旋桨100转动时,锁紧环131转动到其他的安装角度,还可以在锁紧环131和锁紧部12的外表面之间设置定位装置,比如,锁紧部12朝向锁紧环131的表面设置有凸起,锁紧环131朝向锁紧部12的表面对应该凸起设置凹槽,当锁紧环131和锁紧部12装配完成后,锁紧环131的两个连接端之间的间隙与锁紧部12中第一夹持部121a和第二夹持部121b之间的间隙121ab相对应。
具体地,在本实施例中,调节装置132包括第一调节装置132a和第二调节装置132b。第一调节装置132a连接第一连接端131a1与第三连接端131b1,调整第一调节装置132a可使第一连接端131a1与第三连接端131b1相互靠近或远离;第二调节装置132b连接第二连接端131a2和第四连接端131b2,调整第二调节装置132b可使第二连接端131a2和第四连接端131b2靠近或远离。
其中,在本实施例中,第一调节装置132a和第二调节装置132b可以具有相同的结构,因此,以下仅以第一调节装置132a为例进行说明。
请继续参阅图4,该第一调节装置132a包括凸轮扳手1321、螺柱1322、橡胶垫圈1323以及垫圈槽1324。垫圈槽1324设置于第一连接端131a1背离第三连接端131b1的一侧,橡胶垫圈1323安装于垫圈槽1324内;螺柱1322的一端贯穿橡胶垫圈1323、垫圈槽1324以及第一连接端131a1的通孔与第三连接端131b1的螺纹孔螺纹连接;螺柱1322的另一端与凸轮扳手1321铰接,比如,铆钉连接,凸轮扳手1321可绕铆钉轴转动;凸轮扳手1321的凸轮与橡胶垫圈1323抵持。
当凸轮扳手1321朝向转动轴201转动时,凸轮扳手1321的凸轮会挤压橡胶垫圈1323,进而带动第一夹环131a的第一连接端131a1向第二夹环131b的第三连接端131b1移动,即,使第一夹环131a的第一连接端131a1与第二夹环131b的第三连接端131b1相互靠近。由此,通过调整凸轮扳手1321的凸轮在不同位置的半径,可以调节凸轮扳手1321在转动到不同位置时锁紧环131对应施加给锁紧部12的压力,进而调节锁紧部12与转动轴201之间的摩擦力。
其中,可以理解的是,在本实施例中,通过设置橡胶垫圈1323增强第一 连接端131a1的耐磨性以及凸轮扳手1321的凸轮与第一连接端131a1之间的摩擦力,使得在多次掰动凸轮扳手1321后仍能保障锁紧部12与转动轴201固定连接时的紧固性。在其他的一些实施例中,也可以省略该橡胶垫圈1323或者以其他的结构替代该橡胶垫圈1323。进一步地,还可以理解的是,在本实施例中,通过设置垫圈槽1324对橡胶垫圈1323进行限位和保护,在其他的一些实施例中,也可以省略该垫圈槽1324。
其中,还可以理解的是,在本实施例中,通过螺纹连接的方式将螺柱1322远离凸轮扳手1321的一端固定于夹环的一个连接端,能够方便将调节装置132安装于锁紧环131;在另一些实施例中,也可以采用其他的结构将螺柱1322远离凸轮扳手1321的一端固定于夹环的一个连接端,比如,螺柱1322远离凸轮扳手1321的一端设置有插销孔,通过销接的方式固定于夹环的一个连接端。
在实际应用中,在组装本申请实施例提供的螺旋桨100时,可以首先组装好两个调节装置132(即,第一调节装置132a和第二调节装置132b):通过铆钉连接的方式组装凸轮扳手1321和螺柱1322,将橡胶垫圈1323置于垫圈槽1324内,螺柱1322远离凸轮扳手1321的一端贯穿橡胶垫圈1323和垫圈槽1324直至凸轮扳手1321的凸轮抵持橡胶垫圈1323。然后,安装锁紧环131:分别将第一夹环131a安装于第一夹持部121a的阻挡沿122与主体部11所形成的凹槽内,以及,将第二夹环131b安装于第二夹持部121b的阻挡沿122与主体部11所形成的凹槽内。接着,连接锁紧环131和调节装置132:以第一调节装置132a连接第一夹环131a的第一连接端131a1和第二夹环131b的第三连接端131b1,具体为,螺柱1322远离凸轮扳手1321的一端穿过第一 连接端131a1的通孔与第三连接端131b1的螺纹孔螺纹连接,直至垫圈槽1324与第一连接端131a1背离第三连接端131b1的一侧抵持,同理,以第二调节装置132b连接第一夹环131a的第二连接端131a2和第二夹环131b的第四连接端131b2。最后,通过两个连接件30将两个桨叶20安装于主体部11的两个连接端。
当需要将该螺旋桨100安装在驱动装置200的转动轴201上时,用户可以首先将锁紧机构13调节至如图5所示解锁状态,即,向外转动凸轮扳手1321使凸轮扳手1321基本与螺柱1322平行,此时,第一连接端131a1与第三连接端131b1(和/或,第二连接端131a2与第四连接端131b2)之间的间距最大,第一夹环131a和第二夹环131b分别对第一夹持部121a和第二夹持部121b施加的压力最小,进而使得第一夹持部121a和第二夹持部121b之间的间隙121ab最大,第一夹持部121a和第二夹持部121b之间的装配孔121c的内径大于转动轴201,从而使得螺旋桨100的桨榖10可以相对转动轴201滑动;在到达合适的位置处时,可以将锁紧机构13调节至如图6所示的锁紧状态,以使锁紧部12与转动轴201固定连接,具体为,朝向转动轴201的方向转动第一调节装置132a(和/或,第二调节装置132b)的凸轮扳手1321,凸轮扳手1321的凸轮挤压橡胶垫圈1323,进而带动第一连接端131a1向第三连接端131b1移动(和/或,第四连接端131b2朝向第二连接端131a2移动),逐渐减小第一连接端131a1和第三连接端131b1(和/或,第四连接端131b2和第二连接端131a2)之间的距离,同时,由于第一夹环131a和第二夹环131b的内径变小,所以第一夹持部121a和第二夹持部121b受到朝向转动轴201的压力,从而使得第一夹持部121a和第二夹持部121b也相互靠近,第一夹持部 121a和第二夹持部121b之间的间隙121ab变小,进而使得装配孔121c的内径变小,当锁紧机构13达到如图6所示的锁紧状态时,装配孔121c与转动轴201过盈配合,锁紧部12与转动轴201之间的摩擦力增大,从而将螺旋桨100快速地固定安装在转动轴201上。
反之,当需要拆卸该螺旋桨100时,也可以通过如上所述的方式调整锁紧机构13至解锁状态,然后直接将螺旋桨100从转动轴201上取下。
其中,可以理解的是,在本实施例中,锁紧环131包括第一夹环131a和第二夹环131b,并通过两个调节装置132连接第一夹环131a和第二夹环131b,一方面是为了扩大锁紧环131对锁紧部12的压力调整范围,另一方面是为了方便将锁紧机构13安装在锁紧部12上。在其他的一些实施例中,第一夹环131a和第二夹环131b也可以为一个环状整体,即,第一夹环131a的一个连接端(比如,第二连接端131a2)与第二夹环131b的一个连接端(比如,第四连接端131b2)固定连接,第一夹环131a的另一个连接端(比如,第一连接端131a1)和第二夹环131b的另一个连接端(比如,第三连接端131b1)构成该锁紧环131的两个连接端,此时,只需适配一个调节装置132即可构成该锁紧机构13。
其中,可以理解的是,在本实施例中,调节装置132主要由凸轮扳手1321和螺柱1322构成,其操作方式较为简便,用户比较容易上手。在其他的一些实施例中,该调节装置132也可以是其他带自锁功能的结构,比如,该调节装置132可以包括锁扣、锁钩和锁盖,锁盖与锁紧环131的其中一个连接端连接,锁钩固定在锁紧环131的另一个连接端,锁扣的一端铰接于锁盖的内侧下方,另一端可卡入锁钩,从而,当锁扣卡入锁钩时,可以使锁紧环131 的两个连接端相互靠近,当解开锁扣时,可以使锁紧环131的两个连接端相互远离。
其中,还可以理解的是,在本实施例中,锁紧机构13包括锁紧环131和带有自锁功能的调节装置132,通过设置锁紧环131可以增大锁紧部12的受力面积,提升该锁紧机构13的牢固性。在其他的一些实施例中,当第一夹持部121a和第二夹持部121b的形变能力较强时,该锁紧机构13也可以仅包括带有自锁功能的调节装置132,该调节装置可以设置于第一夹持部121a和第二夹持部121b之间,只要能够调节第一夹持部121a和第二夹持部121b之间的间隙121ab的大小即可。
本申请实施例还提供一种无人飞行器。该无人机包括机身、自机身颜色的机臂以及如上所述的动力组件,所述动力组件设置在机臂上,用于为无人飞行器提供飞行动力。
总的来说,区别于现有技术的情况,本申请实施例提供的螺旋桨的桨榖包括主体部,自主体部延伸的锁紧部,以及,锁紧机构,所述锁紧机构安装于所述锁紧部,所述锁紧部包括装配孔,当所述锁紧机构处于锁紧状态时,所述装配孔与所述转动轴通过过盈配合而彼此固定,能够快速将桨榖固定安装于驱动装置的转动轴上;而当所述锁紧机构处于解锁状态时,装配孔的内径变大,使得所述装配孔与所述转动轴之间间隙配合,进而使桨榖能够相对驱动装置的转动轴滑动,从而无需借助任何辅助工具即可实现螺旋桨的快速拆卸。进一步地,将该螺旋桨应用于动力组件,一方面能够实现螺旋桨与驱动装置之间的简单、快速装拆,另一方面在完成装配后也提升了螺旋桨与驱动装置之间的连接的牢固性。再进一步地,将包括该螺旋桨的动力组件应用 于无人机上,能够提升该无人机的飞行安全。
需要说明的是,本申请的说明书及其附图中给出了本申请的较佳的实施例,但是,本申请可以通过许多不同的形式来实现,并不限于本说明书所描述的实施例,这些实施例不作为对本申请内容的额外限制,提供这些实施例的目的是使对本申请的公开内容的理解更加透彻全面。并且,上述各技术特征继续相互组合,形成未在上面列举的各种实施例,均视为本申请说明书记载的范围;进一步地,对本领域普通技术人员来说,可以根据上述说明加以改进或变换,而所有这些改进和变换都应属于本申请所附权利要求的保护范围。

Claims (15)

  1. 一种螺旋桨,其特征在于,包括桨榖和安装在所述桨榖上的至少两个桨叶,所述桨榖用于将所述螺旋桨安装至驱动装置的转动轴上,所述桨榖包括:主体部,自所述主体部延伸的锁紧部,以及,锁紧机构;
    所述锁紧机构安装于所述锁紧部,所述锁紧部包括装配孔,当所述锁紧机构处于锁紧状态时,所述装配孔与所述转动轴通过过盈配合而彼此固定。
  2. 根据权利要求1所述的螺旋桨,其特征在于,所述锁紧机构包括锁紧环和带有自锁功能的调节装置;
    所述锁紧环安装于所述锁紧部的外表面,所述调节装置连接所述锁紧环的两个连接端;
    所述锁紧部上还包括间隙,所述间隙连通所述装配孔,当所述调节装置使所述锁紧环的两个连接端相互靠近时,可使所述间隙变小,从而使所述装配孔与所述转动轴通过过盈配合而彼此固定。
  3. 根据权利要求2所述的螺旋桨,其特征在于,所述锁紧部对应所述锁紧环设置有阻挡沿,用于防止所述锁紧环相对所述锁紧部轴向滑动。
  4. 根据权利要求2或3所述的螺旋桨,其特征在于,所述锁紧部还包括第一夹持部和第二夹持部,所述第一夹持部和所述第二夹持部共同形成所述装配孔,所述间隙设置在所述第一夹持部与所述第二夹持部之间,并且与所述装配孔连通;
    当所述调节装置使所述锁紧环的两个连接端相互靠近时,可使所述第一夹持部与所述第二夹持部向彼此靠拢,使所述间隙变小,从而使所述装配孔与所述转动轴通过过盈配合而彼此固定。
  5. 根据权利要求4所述的螺旋桨,其特征在于,所述锁紧环包括相对设置的第一夹环和第二夹环,当所述锁紧机构处于锁紧状态时,所述第一夹环和所述第二夹环分别夹持所述第一夹持部和所述第二夹持部而使所述第一夹持部与所述第二夹持部向彼此靠拢,从而实现所述装配孔与所述转动轴的过盈配合。
  6. 根据权利要求5所述的螺旋桨,其特征在于,所述第一夹环包括第一连接端和第二连接端,所述第二夹环包括第三连接端和第四连接端,所述调节装置包括第一调节装置和第二调节装置;
    所述第一调节装置连接所述第一连接端与所述第三连接端,调整所述第一调节装置可使所述第一连接端与所述第三连接端相互靠近或远离;
    所述第二调节装置连接所述第二连接端与所述第四连接端,调整所述第二调节装置可使所述第二连接端与所述第四连接端相互靠近或远离。
  7. 根据权利要求2-6任一项所述的螺旋桨,其特征在于,所述调节装置设置于与所述间隙对应的位置处。
  8. 根据权利要求2-7任一项所述的螺旋桨,其特征在于,所述调节装置包括螺柱和凸轮扳手,所述螺柱的一端贯穿所述锁紧环的一个连接端与所述锁紧环的另一个连接端固定连接,所述螺柱的另一端与所述凸轮扳手铰接,所述凸轮扳手的凸轮与所述锁紧环的一个连接端抵持,当所述凸轮扳手向所述转动轴转动时,可使所述锁紧环的两个连接端相互靠近。
  9. 根据权利要求8所述的螺旋桨,其特征在于,所述调节装置还包括橡胶垫圈,所述橡胶垫圈设置于所述凸轮扳手与所述锁紧环的一个连接端之间,所述凸轮扳手的凸轮与所述橡胶垫圈抵持。
  10. 根据权利要求9所述的螺旋桨,其特征在于,所述调节装置还包括垫圈槽,所述橡胶垫圈设置于所述垫圈槽内,所述垫圈槽设置于所述凸轮扳手与所述锁紧环的一个连接端之间。
  11. 根据权利要求2-10任一项所述的螺旋桨,其特征在于,所述主体部设置有缝隙,所述缝隙的一端与所述间隙连通。
  12. 根据权利要求11所述的螺旋桨,其特征在于,所述主体部还设置有侧边通孔,所述侧边通孔与所述缝隙远离所述间隙的一端连通。
  13. 根据权利要求1-12任一项所述的螺旋桨,其特征在于,所述锁紧部朝向所述转动轴的表面设置有尼龙层。
  14. 一种动力组件,其特征在于,包括:包括驱动装置和固定安装于所述驱动装置上的如权利要求1-13任一项所述的螺旋桨。
  15. 一种无人机,其特征在于,包括如权利要求14所述的动力组件。
PCT/CN2018/105291 2017-12-27 2018-09-12 一种螺旋桨、动力组件及无人机 WO2019128313A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711444549.XA CN107985585B (zh) 2017-12-27 2017-12-27 一种螺旋桨、动力组件及无人机
CN201711444549.X 2017-12-27

Publications (1)

Publication Number Publication Date
WO2019128313A1 true WO2019128313A1 (zh) 2019-07-04

Family

ID=62042896

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/105291 WO2019128313A1 (zh) 2017-12-27 2018-09-12 一种螺旋桨、动力组件及无人机

Country Status (2)

Country Link
CN (1) CN107985585B (zh)
WO (1) WO2019128313A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113879513A (zh) * 2020-07-02 2022-01-04 海鹰航空通用装备有限责任公司 一种自动扭转折叠的桨夹及具有其的螺旋桨

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107985585B (zh) * 2017-12-27 2024-01-19 深圳市道通智能航空技术股份有限公司 一种螺旋桨、动力组件及无人机
CN209209043U (zh) * 2018-11-20 2019-08-06 深圳市大疆创新科技有限公司 动力装置及无人机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3851599B2 (ja) * 2002-08-09 2006-11-29 川崎重工業株式会社 回転翼航空機のロータハブ構造体
CN104386249A (zh) * 2014-11-17 2015-03-04 马鞍山市靓马航空科技有限公司 一种快速测绘多旋翼无人机及其测绘方法
CN206407100U (zh) * 2016-12-13 2017-08-15 深圳市道通智能航空技术有限公司 一种机臂连接结构及无人机
CN107140199A (zh) * 2017-05-27 2017-09-08 昆山优尼电能运动科技有限公司 便携式无人机、桨叶转动组件、转动系统及其组装方法
CN107985585A (zh) * 2017-12-27 2018-05-04 深圳市道通智能航空技术有限公司 一种螺旋桨、动力组件及无人机
CN207917146U (zh) * 2017-12-27 2018-09-28 深圳市道通智能航空技术有限公司 一种螺旋桨、动力组件及无人机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB878852A (en) * 1959-03-24 1961-10-04 Bamford & Company Ltd F Improvements in or relating to screw propellers
KR101291145B1 (ko) * 2011-06-17 2013-07-31 삼성중공업 주식회사 선박용 추진장치 및 그 조립 방법
JP6188425B2 (ja) * 2013-05-29 2017-08-30 日立オートモティブシステムズ株式会社 プロペラシャフト
CN204197273U (zh) * 2014-10-23 2015-03-11 郑荣武 多旋翼飞行器快拆装桨座
CN205034340U (zh) * 2015-10-19 2016-02-17 浙江智天科技有限公司 一种无人机螺旋桨安装结构
CN107187591A (zh) * 2017-05-27 2017-09-22 昆山优尼电能运动科技有限公司 便携式无人机、桨叶转动组件、转动系统及其组装方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3851599B2 (ja) * 2002-08-09 2006-11-29 川崎重工業株式会社 回転翼航空機のロータハブ構造体
CN104386249A (zh) * 2014-11-17 2015-03-04 马鞍山市靓马航空科技有限公司 一种快速测绘多旋翼无人机及其测绘方法
CN206407100U (zh) * 2016-12-13 2017-08-15 深圳市道通智能航空技术有限公司 一种机臂连接结构及无人机
CN107140199A (zh) * 2017-05-27 2017-09-08 昆山优尼电能运动科技有限公司 便携式无人机、桨叶转动组件、转动系统及其组装方法
CN107985585A (zh) * 2017-12-27 2018-05-04 深圳市道通智能航空技术有限公司 一种螺旋桨、动力组件及无人机
CN207917146U (zh) * 2017-12-27 2018-09-28 深圳市道通智能航空技术有限公司 一种螺旋桨、动力组件及无人机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113879513A (zh) * 2020-07-02 2022-01-04 海鹰航空通用装备有限责任公司 一种自动扭转折叠的桨夹及具有其的螺旋桨
CN113879513B (zh) * 2020-07-02 2024-06-11 海鹰航空通用装备有限责任公司 一种自动扭转折叠的桨夹及具有其的螺旋桨

Also Published As

Publication number Publication date
CN107985585B (zh) 2024-01-19
CN107985585A (zh) 2018-05-04

Similar Documents

Publication Publication Date Title
WO2019128313A1 (zh) 一种螺旋桨、动力组件及无人机
WO2019119877A1 (zh) 折叠螺旋桨、动力组件及无人机
US11420734B2 (en) Propeller, propeller kit, power assembly, power kit and unmanned aerial vehicle
CN204250379U (zh) 云台及其使用的成像装置、以及无人机
WO2018090987A1 (zh) 动力组件及飞行器
WO2019033768A1 (zh) 一种螺旋桨、动力系统以及无人飞行器
JP2017125602A (ja) 周方向及び軸方向に調整可能なエンドストップアセンブリを備えたリニアアクチュエータシステム
US8382027B2 (en) Adjustable servomechanism assemblies and associated systems and methods
CN206766327U (zh) 螺旋桨、动力系统及无人飞行器
WO2018133393A1 (zh) 飞行器及其云台限位装置
WO2021078265A1 (zh) 一种无人飞行器
CN108750075B (zh) 一种螺旋桨组件、动力组件及无人飞行器
WO2018076470A1 (zh) 无人飞行器
WO2019056756A1 (zh) 螺旋桨、动力组件以及无人飞行器
WO2017107751A1 (zh) 无人机
WO2019047779A1 (zh) 风机组件及具有其的空调器
WO2023143199A1 (zh) 云台连接组件及无人机
WO2022082383A1 (zh) 自锁结构、机臂组件及可移动平台
WO2019062389A1 (zh) 一种螺旋桨、动力组件及无人机
US20210047023A1 (en) Propeller mounting structure, propeller, power package, and unmanned aerial vehicle
CN207917146U (zh) 一种螺旋桨、动力组件及无人机
US10604248B2 (en) Rotating apparatus
CN205738075U (zh) 具有共轴双桨结构的多旋翼无人机
WO2021043336A2 (zh) 机翼拆卸组件和飞行器
CN207875976U (zh) 螺旋桨、螺旋桨套件、动力组件、动力套件及无人机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18893586

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18893586

Country of ref document: EP

Kind code of ref document: A1