WO2019128486A1 - 驱动装置、喷洒装置及无人机 - Google Patents

驱动装置、喷洒装置及无人机 Download PDF

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Publication number
WO2019128486A1
WO2019128486A1 PCT/CN2018/114562 CN2018114562W WO2019128486A1 WO 2019128486 A1 WO2019128486 A1 WO 2019128486A1 CN 2018114562 W CN2018114562 W CN 2018114562W WO 2019128486 A1 WO2019128486 A1 WO 2019128486A1
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WO
WIPO (PCT)
Prior art keywords
driving
abutting
coupled
drive shaft
assembly
Prior art date
Application number
PCT/CN2018/114562
Other languages
English (en)
French (fr)
Inventor
何建兵
彭斌
肖锭锋
谭亚辉
Original Assignee
广州极飞科技有限公司
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 广州极飞科技有限公司 filed Critical 广州极飞科技有限公司
Priority to EP18894198.3A priority Critical patent/EP3733513A4/en
Priority to JP2020552081A priority patent/JP6963364B2/ja
Priority to AU2018394796A priority patent/AU2018394796B2/en
Priority to US16/957,681 priority patent/US20210066995A1/en
Publication of WO2019128486A1 publication Critical patent/WO2019128486A1/zh

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003—Couplings; Details of shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member
    • B05B3/1021—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member with individual passages at its periphery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1035—Driving means; Parts thereof, e.g. turbine, shaft, bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C39/00—Aircraft not otherwise provided for
    • B64C39/02—Aircraft not otherwise provided for characterised by special use
    • B64C39/024—Aircraft not otherwise provided for characterised by special use of the remote controlled vehicle type, i.e. RPV
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
    • B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
    • B64D1/18—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting by spraying, e.g. insecticides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D47/00—Equipment not otherwise provided for
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
    • H02K7/1021—Magnetically influenced friction brakes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/005—Special arrangements or adaptations of the spraying or distributing parts, e.g. adaptations or mounting of the spray booms, mounting of the nozzles, protection shields
    • A01M7/006—Mounting of the nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/005—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 mounted on vehicles or designed to apply a liquid on a very large surface, e.g. on the road, on the surface of large containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00—UAVs specially adapted for particular uses or applications
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00—UAVs specially adapted for particular uses or applications
    • B64U2101/45—UAVs specially adapted for particular uses or applications for releasing liquids or powders in-flight, e.g. crop-dusting

Definitions

  • the invention belongs to the technical field of drones, and in particular relates to a driving device, a spraying device and a drone.
  • the spraying device is an important device for the spraying operation process of the plant protection drone, and comprises: a driving device and a spraying disc, wherein the driving motor of the driving device supplies power to the spraying disc, and the driving motor is housed in the outer casing of the driving motor, and the outer casing is provided with a perforation.
  • the drive shaft of the drive motor is pierced by the perforation and fixedly connected with the spray disc. During the operation, the drive shaft of the drive motor drives the spray disc to rotate and ejects the liquid.
  • the spray disk is driven by its own vibration and/or the vibration of the drone to drive the drive shaft of the drive motor to float, resulting in serious wear of the drive shaft and its internal windings, greatly reducing the service life of the drive device. .
  • the present invention is achieved by a driving device including a driving assembly and a bearing assembly; the driving assembly has a driving motor, the driving motor having a driving shaft; the abutting assembly is coupled to the driving assembly, and The drive shaft generates a force to stop against the drive shaft.
  • the abutment assembly includes a first abutment that is coupled to the outer casing of the drive motor or drive motor.
  • the first abutting member includes a fixing portion and an abutting portion, and the fixing portion is connected to the driving motor or the casing of the driving motor, and the abutting portion abuts the driving shaft.
  • the first abutting member further includes a connecting portion connecting the fixing portion and the abutting portion; the connecting portion and the abutting portion together form an arch structure; the abutting portion, the The fixing portion and the connecting portion are integrally formed.
  • the abutting portion is provided with a resisting elastic piece.
  • the abutting portion defines an extending hole, and the anti-backing elastic piece extends along an inner wall of the extending hole.
  • the abutting assembly further includes a second abutting member, the second abutting member being buckled at an end of the driving shaft adjacent to the first abutting member.
  • an end of the second abutting member adjacent to the first abutting member is formed as a circular arc surface, and the first abutting member is in point contact with the circular arc surface and abuts against the top.
  • the abutment assembly includes a third abutting member, a first magnetic member and a second magnetic member, the first abutting member being coupled to the outer casing of the driving motor or the driving motor; the first magnetic The piece is disposed on a side of the third abutting member facing the drive shaft, and the second magnetic member is coupled to the drive shaft.
  • the abutment assembly includes a third magnetic member and a fourth magnetic member, the first magnetic member is disposed on a casing of the driving motor or the driving motor, and the second magnetic member is coupled to the driving shaft. And disposed along the circumferential direction of the drive shaft.
  • the driving assembly further includes a mounting post connected to the driving shaft, and the second magnetic member is disposed on the mounting post and disposed opposite to the first magnetic member.
  • the abutment assembly includes a bearing and an elastic member, an inner ring of the bearing is fixedly coupled to the drive shaft, and an outer ring of the bearing passes through the elastic member and the outer casing of the drive motor or the drive motor Connected.
  • the elastic member is a spring, and one end of the spring is connected to the outer casing of the driving motor or the driving motor, and the other end is connected to the outer ring of the bearing.
  • Another object of the present invention is to provide a spray device comprising a drive device as before.
  • Another object of the present invention is to provide a drone that includes a spray device as before.
  • the technical effect of the embodiment of the present invention relative to the prior art is that a force is generated on the drive shaft by the set abutment assembly to stop the drive shaft, so that when the spray disk is vibrated, the drive shaft for driving the drive device is avoided. Floating in the direction of the axis, thereby avoiding the wear of the drive shaft and the windings inside thereof is severe, so that the driving device has a long service life, the driving shaft of the driving device is small in float, and the spraying device has a good spraying effect.
  • the spraying device and the drone of the embodiment of the present invention since the above-mentioned abutting assembly is used, the driving shaft is floated by the setting of the abutting component, the spraying device has a good spraying effect, and the service life of the device is lengthened.
  • FIG. 1 is a perspective view of a spray device according to a first embodiment of the present invention
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1 of the embodiment of the present invention.
  • FIG. 3 is a schematic structural view of a first abutting member provided by Embodiment 1 of the present invention.
  • FIG. 4 is a schematic structural view of a second abutting member according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic structural view of a casing provided by Embodiment 1 of the present invention.
  • FIG. 6 is a schematic structural view of a cover provided according to Embodiment 1 of the present invention.
  • FIG. 7 is a schematic structural view of a connecting post according to Embodiment 1 of the present invention.
  • FIG. 8 is a schematic structural view of a spray tray according to Embodiment 1 of the present invention.
  • FIG. 9 is a schematic structural view of a flow guiding member according to Embodiment 1 of the present invention.
  • Figure 10 is a cross-sectional view of a spray device according to a second embodiment of the present invention.
  • FIG. 11 is a schematic structural view of a third abutment provided by Embodiment 2 of the present invention.
  • FIG. 12 is a schematic structural view of a mounting post according to Embodiment 2 of the present invention.
  • Figure 13 is a schematic structural view of a spraying device according to a third embodiment of the present invention.
  • Figure 14 is a schematic view showing the structure of a spraying device according to a fourth embodiment of the present invention.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like should be understood broadly, and may be fixed connection, for example, or may be
  • the connection may be disassembled or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship of two elements.
  • the specific meanings of the above terms in the embodiments of the present invention can be understood on a case-by-case basis.
  • the embodiment of the invention provides a driving device, a spraying device and a drone.
  • the driving shaft 32 is floated by the setting of the abutting member, the spraying device has a good spraying effect, and the service life of the device is lengthened.
  • a driving device includes: a driving assembly and a bearing assembly; the driving assembly has a driving motor 31 having a driving shaft 32; the abutting assembly is coupled to the driving assembly, and The drive shaft 32 generates a force to stop the drive shaft 32.
  • the driving device of the embodiment of the present invention generates a force on the drive shaft 32 by the abutting member to stop the drive shaft 32, thus preventing or reducing the floating of the drive shaft 32 in the axial direction, thereby avoiding the drive shaft 32 and the inside thereof.
  • the wear of the windings makes the service life of the drive device longer, the drive shaft 32 of the drive device floats small, and the spray device has a good spray effect.
  • the driving assembly further includes a housing 40 for driving the motor.
  • the housing 40 of the driving motor has a receiving cavity 410 configured to receive the driving motor 31.
  • the housing 40 is provided with a through hole, and the driving shaft 32 is pierced by the through hole.
  • the drive shaft 32 includes a first end 321 and a second end 322 that extend along both sides of the drive motor; the first end 321 of the drive shaft 32 is pierced by a perforation.
  • the abutment assembly includes a first abutment 11 that is coupled to the outer casing 40 of the drive motor.
  • the first abutting member 11 includes a fixing portion 111 and an abutting portion 112.
  • the fixing portion 111 is coupled to the outer casing 40 of the driving motor, and the abutting portion 112 abuts against the driving shaft 32 to generate an axial direction of the driving shaft 32. Force.
  • the first abutment 11 can also be coupled to the drive motor 31.
  • the fixing portion 111 of the first abutment 11 can be coupled to the drive motor 31.
  • the first abutting member 11 further includes a connecting portion 113 connecting the fixing portion 111 and the abutting portion 112; the connecting portion 113 and the abutting portion 112 together form an arch structure; the abutting portion 112, the fixing portion 111 and the connecting portion
  • the portion 113 is integrally formed.
  • the connecting portion 113 includes a first connecting portion and a second connecting portion respectively connected to opposite sides of the abutting portion 112.
  • the fixing portion 111 includes a first connecting portion and is disposed to be coupled with the outer casing 40 of the driving motor or a first fixing portion fixed to one side of the driving motor 31 and a second fixing portion connected to the second connecting portion and provided to be fixed to the other side of the casing 40 of the driving motor or the driving motor 31, the first connecting portion
  • the abutting portion 112 and the second connecting portion collectively form an arch structure.
  • the abutting portion 112 of the first abutting member 10 is provided with a resisting elastic piece 1121 , and the anti-elastic piece 1121 is stopped against the driving shaft 32 . Therefore, when the axial floating amplitude of the drive shaft 32 is excessively large, the setting of the anti-ball spring 1121 can prevent the transition between the drive shaft 32 and the first abutment 11 from abutting, resulting in the drive shaft 32 and the first abutment 10 Excessive friction increases the energy consumption of the drive motor.
  • the resisting portion 112 defines an extending hole 1120 , and the resisting elastic piece 13 extends along the inner wall of the extending hole 1120 .
  • the connecting portion 113 of the first abutting member 11 is further provided with a escaping hole 1130, and the escaping hole 1130 can pass through the connecting wire of the driving motor 31.
  • the abutting assembly further includes a second abutting member 12 that is fastened to the second end 322 of the driving shaft 32 , and an end of the second abutting member 12 away from the driving shaft 32 is formed as
  • the arcuate surface of the anti-theft piece 1121 can abut against the arc surface of the second abutting member 12, and the arcuate surface of the anti-theft piece 1121 and the second abutting piece 12 can be in point contact, thus reducing friction. Reduce energy consumption.
  • the embodiment of the present invention further provides a spraying device, comprising: a driving device as described above and a spraying tray 20 arranged to eject liquid, the first end 321 of the driving shaft 32 is pierced by the perforation and fixedly connected with the spraying disc 20
  • the drive motor is caused to power the spray tray 20.
  • the spray tray 20 is a centrifugal spray tray 20 that is rotated by the drive shaft 32 to cause the liquid in the spray tray 20 to be ejected along the centrifugal passage on the spray tray 20.
  • the spray tray 20 is provided with a plurality of spaced apart centrifugal passages along its disc surface, and the liquid is ejected along the centrifugal passage.
  • the spraying device further comprises a connecting post 50 fixedly connected between the spraying disc 20 and the driving shaft 32 , the spraying device is arranged to connect the connecting post 50 to make the spraying disc 20 and the driving shaft
  • the fixed connection 32 causes the drive motor 31 to rotate the spray tray 20 to make the engagement of the drive shaft 32 with the connecting post 50 more compact and reliable.
  • the connecting post 50 includes a first post section 51 fixedly coupled to the sprinkler disk 20 and a second post section 52 fixedly coupled to the drive shaft 32, the second post section 52 being provided with a plug
  • the through hole, the drive shaft 32 is inserted and fixed in the insertion hole.
  • the second column section 52 is tightly coupled to the drive shaft 32 to ensure that the spray disk 20 rotates with the drive shaft 32.
  • the first column section 51 and the second column section 52 are made by integral molding.
  • the first column section 51 and the second column section 52 are coaxially disposed and disposed coaxially with the drive shaft 32.
  • the spray tray 20 is provided with a matching hole 21 .
  • the connecting post 50 is further formed with a convex ring 53 along the outer peripheral surface.
  • the first column segment 51 is fixed in the matching hole 21 , and the convex ring 53 The end face is abutted against the end face of the fitting hole 21.
  • the mating surface between the first column segment 51 and the mating hole 21 is disposed in a plane to prevent relative rotation between the first column segment 51 and the spray tray 20.
  • the outer casing 40 of the drive motor includes a main casing 41 that is fixedly mounted and houses the drive motor 31, and a second extension to the spray tray 20 along the outer peripheral edge of the perforation.
  • the housing 42 is provided with a receiving cavity 410 for receiving the driving motor 31.
  • the secondary housing 42 is provided with a receiving hole 410 for inserting the driving shaft 32.
  • the main housing 41 and the sub housing 42 are made by integral molding.
  • a top portion of the main housing 41 is radially extended to form a first connecting portion 411 , and a fixing portion of the first locking member 11 is coupled to the first connecting portion 411 .
  • the top of the first connecting portion 411 is formed with a second connecting portion 412 extending in the radial direction, and the second connecting portion 412 is connected with the cover 43 and the circumference of the cover 43 .
  • a sealing protrusion 431 is disposed along the upper portion 412, and a fitting groove 413 is formed. The sealing protrusion 431 is inserted into the fitting groove 413 to form a sealed installation space.
  • the cover 43 is provided with a connection port 432.
  • the connection port 432 is adapted to be mounted on the electrical circuit board, and the electrical connection circuit board is adapted to electrically connect the driving component 31 with the power supply circuit, and the electrical circuit board can be glued. The way is sealed.
  • the spraying device further includes: a flow guiding member 60 and a liquid guiding conduit 70 fixedly connected between the main housing 41 and the spray tray 20 and formed with the spray tray 20 .
  • the conducting guide cavity 61, the flow guiding member 60 and the main housing 41 form a mounting opening that is electrically connected to the guiding cavity 61; the liquid conduit is fixedly mounted on the mounting opening and is in communication with the guiding cavity 61.
  • the other embodiments of the present invention are the same as those of the first embodiment.
  • the driving device provided in this embodiment is different from the first embodiment only in that the abutting component in the embodiment includes a third abutting member 13 .
  • the first magnetic member 14 and the second magnetic member 15, specifically, the third abutting member 13 is connected to the driving motor 31 or the outer casing 40 of the driving motor, and the first magnetic member 14 is disposed at the third abutting member 13
  • the second magnetic member 15 is coupled to the drive shaft 32 toward the drive shaft 32 side, and the first magnetic member 14 is disposed opposite to the second magnetic member 15.
  • the force is generated by the first magnetic member 14 and the second magnetic member 15, thereby generating an axial direction force to the drive shaft 32, preventing the drive shaft 32 from floating in the axial direction during the rotation of the drive spray tray 20.
  • the third abutting member 13 is provided with a first mounting groove 130 toward the side of the driving shaft 32.
  • the first magnetic member 14 is mounted in the first mounting groove 130.
  • the driving The assembly 31 further includes a mounting post 33, the mounting post 33 is coupled to the drive shaft 32, the mounting post 33 is provided with a second mounting slot 330, and the second magnetic member 15 is mounted within the second mounting slot 330 and opposite the first magnetic member 14. Settings.
  • the third abutting member 13 drives the outer casing 40 of the motor to be connected, and the mounting post 33 is fixedly coupled to the second end 322 of the drive shaft 32.
  • the structure of the third abutting member 13 in this embodiment is the same as that of the first abutting member 11 in the first embodiment, and the difference is that the abutting portion of the third abutting member 13 The same portion of the abutting portion 112 of the first abutting member 11 is not described herein.
  • the abutting portion of the third abutting member 13 is provided with a first mounting toward the side of the driving shaft 32. Slot 130.
  • the first magnetic member 14 and the second magnetic member 15 may also be the same.
  • the present invention is the same as the first embodiment.
  • the driving device provided in this embodiment is different from the first embodiment only in that the abutting component in the embodiment includes a third magnetic component 16 and a fourth magnetic component. 17.
  • the third magnetic member 16 is disposed on the outer casing 40 of the drive motor 31 or the drive motor, and the fourth magnetic member 17 is coupled to the drive shaft 32 and disposed circumferentially along the drive shaft 32, the third magnetic member 16 and the fourth
  • the magnetic member 17 is disposed opposite to each other and generates a force, thereby generating a force on the drive shaft 32 to stop the drive shaft 32 and prevent the drive shaft 32 from floating up and down in the axial direction.
  • the fourth magnetic member 17 is disposed on the first end 321 of the drive shaft 32, and the third magnetic member 16 is disposed on the end surface of the drive motor on the side of the first end 321 of the drive shaft 32, and The third magnetic member 16 and the fourth magnetic member 17 are disposed opposite each other and exert a force acting along the circumferential direction of the drive shaft 32.
  • the fourth magnetic member 17 can be disposed on the second end 322 of the driving shaft 32, and the third magnetic member 16 can be disposed on the end surface of the driving motor on the side of the second end 322 of the driving shaft 32. .
  • the other embodiment of the present invention is the same as the first embodiment.
  • the driving device provided in this embodiment is different from the first embodiment only in that the abutment assembly in the embodiment includes a bearing 18 and an elastic member 19 .
  • the inner ring of the bearing 18 is fixedly coupled to the drive shaft 32.
  • the outer ring of the bearing 18 is connected to the drive motor 31 or the outer casing 40 of the drive motor via the elastic member 19, and the elastic member 19 is external to the bearing 18.
  • the ring generates a force that in turn exerts a force on the drive shaft 32 to stop against the drive shaft 32, preventing the drive shaft 32 from floating up and down in the axial direction.
  • the inner ring of the bearing 18 is fixedly coupled to the first end 321 of the drive shaft 32, and one end of the elastic member 19 is fixed to the driving motor 31, and the other end of the elastic member 19 is The outer ring of the bearing 18 is fixedly connected.
  • the inner ring of the bearing 18 can be coupled to the second end 322 of the drive shaft 32.
  • the outer ring of the bearing 18 is connected to the drive motor 31 or the outer casing 40 of the drive motor via an elastic member 19.
  • the elastic member is a spring, one end of the spring is connected to the outer casing of the driving motor or the driving motor, and the other end of the spring is connected to the outer ring of the bearing 18.

Abstract

一种驱动装置、包括如前的驱动装置的喷洒装置及包括如前的喷洒装置的无人机，其中，驱动装置包括驱动组件以及止抵组件；驱动组件具有驱动电机（31），驱动电机（31）具有驱动轴（32）；止抵组件与驱动组件连接，并对驱动轴（32）产生作用力，以止抵驱动轴（32）。

Description

驱动装置、喷洒装置及无人机 技术领域
本发明属于无人机的技术领域，尤其涉及一种驱动装置、喷洒装置及无人机。
背景技术
近年来，随着无人飞行器(即无人机技术)发展，因其具有机动灵活、反应快速、无人飞行、操作要求低等优点，引起了其在多个领域的应用，特别是在农业植保领域。应用植保无人机对农作物进行喷洒工作，不仅提高了喷洒工作效率，而且能有效的保护作业人员不受喷洒药液伤害。
喷洒装置是植保无人机喷洒作业过程的重要装置，其包括：驱动装置和喷洒盘，驱动装置的驱动电机为喷洒盘提供动力，驱动电机收容于驱动电机的外壳内，外壳上设有穿孔，驱动电机的驱动轴由穿孔穿出并与喷洒盘固定连接，作业过程中，驱动电机的驱动轴驱动喷洒盘转动并将液体喷出。现有技术中，喷洒盘受自身的振动和/或无人机振动的影响下，驱使驱动电机的驱动轴发生浮动，导致驱动轴以及其内部的绕组磨损严重，大大降低了驱动装置的使用寿命。
发明内容
本发明的目的在于提供一种驱动装置，旨在解决现有技术的驱动装置存在的易磨损、使用寿命低的技术问题。
本发明是这样实现的，一种驱动装置，包括驱动组件以及止抵组件；所述驱动组件具有驱动电机，所述驱动电机具有驱动轴；所述止抵组件与所述驱动组件连接，并对所述驱动轴产生作用力，以止抵所述驱动轴。
作为本发明的优选技术方案：
可选地，所述止抵组件包括第一止抵件，所述第一止抵件与所述驱动电机或驱动电机的外壳连接。
可选地，所述第一止抵件包括固定部和止抵部，所述固定部与所述驱动电机或所述驱动电机的外壳连接，所述止抵部抵顶所述驱动轴。
可选地，第一止抵件还包括连接所述固定部和所述止抵部的连接部；所述连接部和所述止抵部共同形成拱形结构；所述止抵部、所述固定部和所述连接部一体成型。
可选地，所述止抵部设有止抵弹片。
可选地，所述止抵部开设有一延伸孔，所述止抵弹片沿所述延伸孔的内壁延伸而成。
可选地，所述止抵组件还包括第二止抵件，所述第二止抵件扣设在所述驱动轴临近所述第一止抵件的一端。
可选地，所述第二止抵件临近所述第一止抵件一端形成为圆弧面，所述第一止抵件与所述圆弧面为点接触且相抵顶。
可选地，所述止抵组件包括第三止抵件、第一磁性件和第二磁性件，所述第一止抵件与所述驱动电机或驱动电机的外壳连接；所述第一磁性件设置在所述第三止抵件朝向所述驱动轴一侧，所述第二磁性件与所述驱动轴连接。
可选地，所述止抵组件包括第三磁性件和第四磁性件，所述第一磁性件设置在驱动电机或驱动电机的外壳上，所述第二磁性件与所述驱动轴连接，且沿所述驱动轴周向设置。
可选地，所述驱动组件还包括与所述驱动轴连接安装柱，所述第二磁性件设置于安装柱上，并与所述第一磁性件相对设置。
可选地，所述止抵组件包括轴承和弹性件，所述轴承的内圈与所述驱动轴固定连接，所述轴承的外圈通过所述弹性件和所述驱动电机或驱动电机的外壳相连。
可选地，所述弹性件为弹簧，所述弹簧的一端连接于所述驱动电机或所述驱动电机的外壳，另一端连接于所述轴承的外圈。
本发明的另一目的在于提供一种喷洒装置，包括如前的驱动装置。
本发明的另一目的在于提供一种无人机，包括如前的喷洒装置。
本发明实施例相对于现有技术的技术效果是：通过设置的止抵组件对驱动轴产生作用力以止抵驱动轴，如此，喷洒盘受振动的情况下，避免了驱使驱动装置的驱动轴沿轴线方向发生浮动，从而避免驱动轴以及其内部的绕组磨损严重，使得驱动装置使用寿命长，驱动装置的驱动轴浮动小，喷洒装置喷洒效果好。
本发明实施例的喷洒装置及无人机，由于使用有上述的止抵组件，那么通过止抵组件的设置使得驱动轴浮动小，喷洒装置喷洒效果好，装置的使用寿命加长。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例一提供的喷洒装置的立体图；
图2是本发明实施例图1的A-A剖视图；
图3是本发明实施例一提供的第一止抵件的结构示意图；
图4是本发明实施例一提供的第二止抵件的结构示意图；
图5是本发明实施例一提供的外壳的结构示意图；
图6是本发明实施例一提供的壳盖的结构示意图；
图7是本发明实施例一提供的连接柱的结构示意图；
图8是本发明实施例一提供的喷洒盘的结构示意图；
图9是本发明实施例一提供的导流件的结构示意图；
图10是本发明实施例二提供的喷洒装置的剖视图；
图11是本发明实施例二提供的第三止抵件的结构示意图；
图12是本发明实施例二提供的安装柱的结构示意图；
图13是本发明实施例三提供的喷洒装置的结构示意图；
图14是本发明实施例四提供的喷洒装置的结构示意图。
附图标记说明：
图中：11-第一止抵件，111-固定部，112-止抵部，1120-延伸孔，1121止抵弹片，113-连接部，1130-避让孔，12-第二止抵件，13-第三止抵件，130-第一安装槽，14-第一磁性件，15-第二磁性件，16-第三磁性件，17-第四磁性件，18-弹性件，19-轴承，20-喷洒盘，21-配合孔，31-驱动电机，32-驱动轴，321-第一端，322-第二端，33-安装柱，330-第二安装槽，40-外壳，41-主壳体，410-容置腔体，411-第一连接部，412-第二连接部，413-凹槽，42-次壳体，420-导通孔，43-壳盖，431-密封凸起，432-接线口，50-连接柱，51-第一柱段，52-第二柱段，53-凸环，60-导流件，61-导流腔，70-接液导管。
具体实施方式
下面详细描述本发明的实施例，实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“长度”、“宽度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明实施例中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明实施例中的具体含义。
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。
本发明实施例提供一种驱动装置、喷洒装置及无人机，通过止抵件的设置使得驱动轴32浮动小，喷洒装置喷洒效果好，装置的使用寿命加长。
实施例一
请参阅附图1至附图9，一种驱动装置，包括：包括驱动组件以及止抵组件；驱动组件具有驱动电机31，驱动电机31具有驱动轴32；止抵组件与驱动组件连接，并对驱动轴32产生作用力，以止抵驱动轴32。
本发明实施例的驱动装置，通过止抵组件对驱动轴32产生作用力以止抵驱动轴32，如此，防止或减小了驱动轴32沿轴线方向发生浮动，从而避免驱动轴32以及其内部的绕组磨损，使得驱动装置使用寿命加长，驱动装置的驱动轴32浮动小，喷洒装置喷洒效果好。
在本实施例中，驱动组件还包括驱动电机的外壳40，驱动电机的外壳40具有设置为收容驱动电机31的容置腔体410，外壳40上设有穿孔，驱动轴32由穿孔穿出。具体地，驱动轴32包括沿驱动电机的两侧延伸的第一端321和第二端322；驱动轴32的第一端321由穿孔穿出。
优选地，止抵组件包括第一止抵件11，第一止抵件11与驱动电机的外壳40连接。具体而言，第一止抵件11包括固定部111和止抵部112，固定部111与驱动电机的外壳40连接，止抵部112抵顶驱动轴32,以对驱动轴32产生轴线方向的作用力。
在其他实施例中，所述第一止抵件11还可以与所述驱动电机31连接。第一止抵件11的固定部111可以与驱动电机31连接。
可选地，第一止抵件11还包括连接固定部111和止抵部112的连接部113；连接部113和止抵部112共同形成拱形结构；止抵部112、固定部111和连接部113一体成型。具体地，连接部113包括分别连接于止抵部112的相对两侧的第一连接部以及第二连接部，固定部111包括与第一连接部连接，且设置为与驱动电机的外壳40或驱动电机31的一侧固定的第一固定部以及与第二连接部连接，且设置为与驱动电机的外壳40或驱动电机31的另一侧固定的第二固定部，第一连接部、止抵部112以及第二连接部共同形成拱形结构。
优选地，请参照图2至图3，第一止抵件10的止抵部112上设有止抵弹片1121，止抵弹片1121止抵于驱动轴32。由此，当驱动轴32轴向浮动幅度过大时，止抵弹片1121的设置可以防止驱动轴32与第一止抵件11之间过渡抵顶，导致驱动轴32与第一止抵件10摩擦过大，增加驱动电机的能耗。
请参照图3，细化地，止抵部112开设有延伸孔1120，止抵弹片13沿延伸孔1120的内壁延伸而成。
可选地，第一止抵件11的连接部113还开设有避让孔1130，所述避让孔1130可以供所述驱动电机31的连接导线穿过。
请参照图2和图4，细化地，止抵组件还包括扣设在驱动轴32的第二端322的第二止抵件12，第二止抵件12远离驱动轴32的一端形成为圆弧面，止抵弹片1121可抵顶于第二止抵件12的圆弧面上，并且止抵弹片1121与第二止抵件12的圆弧面可以为点接触，如此，减少摩擦，减少能耗。
本发明实施例还提供一种喷洒装置，包括：如前述的驱动装置以及设置为 将液体喷出的喷洒盘20，驱动轴32的第一端321由穿孔穿出且与喷洒盘20固定连接以使得驱动电机为喷洒盘20提供动力。细化地，喷洒盘20为离心喷洒盘20，通过驱动轴32带动喷洒盘20转动，以使喷洒盘20内的液体随喷洒盘20上的离心通道喷出。可以理解地，喷洒盘20沿其盘面上设有多条间隔设置的离心通道，液体沿离心通道喷出。
请参照图2和图7，可选地，喷洒装置还包括固定连接于喷洒盘20与驱动轴32之间的连接柱50，该喷洒装置通过设置连接柱50，以使喷洒盘20与驱动轴32固定连接，从而使驱动电机31带动喷洒盘20转动，以使驱动轴32与连接柱50的配合更加紧密和可靠。
继续参照图2和图7，可选地，连接柱50包括与喷洒盘20固定连接的第一柱段51以及与驱动轴32固定连接的第二柱段52，第二柱段52设有插接孔，驱动轴32插入并固定于插接孔中。通过第二柱段52与驱动轴32紧配合，以保证喷洒盘20随驱动轴32转动。可以理解地，第一柱段51和第二柱段52由一体成型而制成。优选地，第一柱段51和第二柱段52同轴设置，并且与驱动轴32同轴设置。
请参照图2和图8，可选地，喷洒盘20设有配合孔21，连接柱50沿外周面上还形成有凸环53，第一柱段51固定于配合孔21中，凸环53端面止抵于配合孔21端面上。同时，第一柱段51与配合孔21之间的配合面设置为平面，防止第一柱段51与喷洒盘20之间相对转动。
此外，请参照图2和图5，在该实施例中，驱动电机的外壳40包括设置为固定安装并收纳驱动电机31的主壳体41以及沿穿孔外周沿处延伸至喷洒盘20上的次壳体42，主壳体41上设有收容驱动电机31的容置腔体410，次壳体42设有与容置腔体410相通，以设置为供驱动轴32插入的导通孔420。优选地，主壳体41和次壳体42由一体成型而制成。
请参照图5，可选地，主壳体41顶部径向延伸形成有第一连接部411，第一止抵件11的固定部连接于第一连接部411上。
请参照2和图6所示，可选地，第一连接部411的顶部沿径向方向延伸形成有第二连接部412，第二连接部412上连接有壳盖43，壳盖43的周沿上设有密封凸起431，第二连接部412处设有装配凹槽413，密封凸起431插入装配凹槽413内形成密封的安装空间。可选地，壳盖43上设有接线口432，接线口432适于安装接电电路板，接电电路板适于将驱动组件31与供电电路电连接，接电电路板可以用灌胶的方式密封。
请参照图2和图9，可选地，喷洒装置还包括：导流件60和接液导管70，导流件60固定连接于主壳体41与喷洒盘20之间并形成与喷洒盘20导通的导流腔61，导流件60与主壳体41之间形成与导流腔61导通的安装开口；液导管固定安装于安装开口上并设有与导流腔61相连通。
实施例二
请参阅附图10-图12，本发明其他与实施例一相同，本实施例提供的驱动装置与实施例一的区别仅在于：本实施例中的止抵组件包括第三止抵件13、第一磁性件14和第二磁性件15，具体而言，所述的第三止抵件13与驱动电机31或驱动电机的外壳40连接，第一磁性件14设置在第三止抵件13朝向驱动轴32一侧，第二磁性件15与驱动轴32连接，第一磁性件14与第二磁性件15相对设置。通过第一磁性件14和第二磁性件15产生力的作用，从而对驱动轴32产生轴线方向力，防止驱动轴32在驱动喷洒盘20转动的过程中沿轴线方向浮动。
请参照图11和图12，第三止抵件13朝向驱动轴32一侧设置有第一安装槽130，所述第一磁性件14安装在第一安装槽130内，优选地，所述驱动组件31还包括安装柱33，安装柱33与驱动轴32连接，安装柱33设置有第二安装槽330，第二磁性件15安装在第二安装槽330内，并与第一磁性件14相对设置。
在本实施例中，所述的第三止抵件13驱动电机的外壳40连接，所述的安装柱33与驱动轴32第二端322固定连接。
此外，还需说明的是，本实施例中的第三止抵件13的结构其他与实施例一中第一止抵件11的结构相同，区别在于：第三止抵件13的止抵部与第一止抵件11的止抵部112，相同部分此处不再赘述，本实施例中，所述第三止抵件13的止抵部朝向驱动轴32的一侧设置有第一安装槽130。
优选地，所述的第一磁性件14和第二磁性件15也可以相同。
实施例三
请参阅附图13，本发明其他与实施例一相同，本实施例提供的驱动装置与实施例一的区别仅在于：本实施例中的止抵组件包括第三磁性件16和第四磁性件17，第三磁性件16设置在驱动电机31或驱动电机的外壳40上，第四磁性件17与驱动轴32连接，且沿驱动轴32周向设置，所述第三磁性件16和第四磁性件17相对设置并产生力的作用，进而对所述驱动轴32产生作用力，以止抵所述驱动轴32，防止所述驱动轴32沿轴线方向上下浮动。
在本实施中，所述第四磁性件17设置于驱动轴32的第一端321，所述第三磁性件16设置于驱动电机位于驱动轴32的第一端321一侧的端面上，并且沿驱动轴32周向设置，所述第三磁性件16和第四磁性件17相对设置并产生力的作用。
可以理解的是，所述第四磁性件17可以设置于驱动轴32的第二端322，所述第三磁性件16可以设置于驱动电机位于驱动轴32的第二端322一侧的端面上。
实施例四
请参阅附图14，本发明其他与实施例一相同，本实施例提供的驱动装置与实施例一的区别仅在于：本实施例中的止抵组件包括轴承18和弹性件19。所述轴承18的内圈与驱动轴32固定连接，所述轴承18的外圈通过弹性件19和驱动电机31或驱动电机的外壳40相连，所述的弹性件19对所述轴承18的外圈产生作用力，进而对所述驱动轴32产生作用力，以止抵所述驱动轴32，防止所述驱动轴32沿轴线方向上下浮动。
在本实施例中，所述轴承18的内圈与驱动轴32的第一端321固定连接，所述的弹性件19一端固定于驱动电机31上，所述的弹性件19另一端与所述轴承18外圈固定连接。
可以理解的是，在其实施例中，所述轴承18的内圈与可以连接于驱动轴32的第二端322。所述轴承18的外圈通过弹性件19和驱动电机31或驱动电机的外壳40相连。
可选地，弹性件设为弹簧，弹簧的一端连接于驱动电机或驱动电机的外壳上，弹簧的另一端连接于轴承18的外圈上。
以上仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (15)

  1. 一种驱动装置，包括：驱动组件以及止抵组件；所述驱动组件具有驱动电机，所述驱动电机具有驱动轴；所述止抵组件与所述驱动组件连接，并对所述驱动轴产生作用力，以止抵所述驱动轴。
  2. 如权利要求1所述的驱动装置，其中，所述止抵组件包括第一止抵件，所述第一止抵件与所述驱动电机或驱动电机的外壳连接。
  3. 如权利要求2所述的驱动装置，其中，所述第一止抵件包括固定部和止抵部，所述固定部与所述驱动电机或所述驱动电机的外壳连接，所述止抵部抵顶所述驱动轴。
  4. 如权利要求3所述的驱动装置，其中，第一止抵件还包括连接所述固定部和所述止抵部的连接部；所述连接部和所述止抵部共同形成拱形结构；所述止抵部、所述固定部和所述连接部一体成型。
  5. 如权利要求4所述的驱动装置，其中，所述止抵部设有止抵弹片。
  6. 如权利要求5所述的驱动装置，其中，所述止抵部开设有一延伸孔，所述止抵弹片沿所述延伸孔的内壁延伸而成。
  7. 如权利要求2至6任一权利要求所述的驱动装置，其中，所述止抵组件还包括第二止抵件，所述第二止抵件扣设在所述驱动轴临近所述第一止抵件的一端。
  8. 如权利要求7所述的驱动装置，其中，所述第二止抵件临近所述第一止抵件一端形成为圆弧面，所述第一止抵件与所述圆弧面相抵顶且为点接触。
  9. 如权利要求1所述的驱动装置，其中，所述止抵组件包括第三止抵件、第一磁性件和第二磁性件，所述第一止抵件与所述驱动电机或驱动电机的外壳 连接；所述第一磁性件设置在所述第三止抵件朝向所述驱动轴一侧，所述第二磁性件与所述驱动轴连接。
  10. 如权利要求9所述的驱动装置，其中，所述驱动组件还包括与所述驱动轴连接安装柱，所述第二磁性件设置于安装柱上，并与所述第一磁性件相对设置。
  11. 如权利要求1所述的驱动装置，其中，所述止抵组件包括第三磁性件和第四磁性件，所述第一磁性件设置在驱动电机或驱动电机的外壳上，所述第二磁性件与所述驱动轴连接，且沿所述驱动轴周向设置。
  12. 如权利要求1所述的驱动装置，其中，所述止抵组件包括轴承和弹性件，所述轴承的内圈与所述驱动轴固定连接，所述轴承的外圈通过所述弹性件和所述驱动电机或驱动电机的外壳相连。
  13. 如权利要求12所述的驱动装置，其中，所述弹性件为弹簧，所述弹簧的一端连接于所述驱动电机或所述驱动电机的外壳，另一端连接于所述轴承的外圈。
  14. 一种喷洒装置，包括：如权利要求1-13中任一项所述的驱动装置。
  15. 一种无人机，包括如权利要求14所述的喷洒装置。
PCT/CN2018/114562 2017-12-25 2018-11-08 驱动装置、喷洒装置及无人机 WO2019128486A1 (zh)

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