WO2019052118A1

WO2019052118A1 - Plug-in brushless centrifugal nozzle and unmanned aerial vehicle

Info

Publication number: WO2019052118A1
Application number: PCT/CN2018/075698
Authority: WO
Inventors: 罗君
Original assignee: 珠海市双捷科技有限公司
Priority date: 2017-09-18
Filing date: 2018-02-08
Publication date: 2019-03-21
Also published as: CN207188086U

Abstract

An unmanned aerial vehicle, which is provided with a plug-in brushless centrifugal nozzle. The nozzle comprises a mounting base (1), a slot ring (2), an agrochemical nozzle base (3), a motor (4), a hollow shaft (5), and a nozzle worm wheel (6). The slot ring (2) is disposed in the mounting base (1); the agrochemical nozzle base (3) is provided with an agrochemical nozzle (31); the motor (4) comprises a stator base (41), a stator (42) disposed on the stator base (41), and a rotor disposed around the stator (42); a slot is connected to the agrochemical nozzle base (3) and the motor (4) by means of protrusions; the hollow shaft (5) passes through the motor (4); the nozzle worm wheel (6) is connected to the rotor; the end of the hollow shaft (5) distant from the agrochemical nozzle base (3) extends into the nozzle worm wheel (6); the end of the nozzle worm wheel (6) distant from the motor (4) is connected to a nozzle cover; the agrochemical nozzle, the hollow shaft (5), and the nozzle worm wheel (6) communicate with each other. The unmanned aerial vehicle uses the structure above, so that the processing difficulty can be reduced, removal and plug-in installation can be quickly performed, parts can be replaced quickly, and the working efficiency is effectively improved; the entire liquid path structure is simple, the wear is reduced, and the service life is prolonged.

Description

Plug-in brushless centrifugal nozzle and drone

Technical field

The invention is based on the Chinese patent with the patent number 201721197091.8, the name is "plug-in type brushless centrifugal nozzle and drone", and the invention relates to the field of drones, in particular to a plug-in type brushless centrifugal nozzle and no one. machine.

Background technique

In the high-pressure spraying system of the existing agricultural drone, in order to ensure that the drone can continue to spray during the flight, the sealing requirements of the entire spraying pipeline are high, in order to adapt to the high sealing effect, the nozzle The assembly is complicated, the replacement of parts is difficult, and the service life of the nozzle is short in a high-pressure environment.

technical problem

A first object of the present invention is to provide a plug-in type brushless centrifugal head which is simple in assembly and easy in replacement of parts.

A second object of the present invention is to provide an unmanned aerial vehicle having a plug-in type brushless centrifugal head which is simple in assembly and easy to replace parts.

Technical solution

In order to achieve the above first object, the plug-in brushless centrifugal nozzle provided by the invention comprises a mounting seat, a card slot ring, a nozzle seat, a motor, a hollow shaft and a nozzle worm wheel; the card slot ring is arranged in the mounting seat, the card slot The first end of the ring is provided with a first card slot, and the second end of the card slot ring is provided with a second card slot, and the first card slot is disposed above the second card slot along the axial direction of the card slot ring; a medicine nozzle is disposed on the side of the medicine nozzle seat facing the card slot ring, and the first protrusion block is disposed in the first card slot; the motor comprises a stator seat, a stator disposed on the stator seat, a rotor disposed on a periphery of the stator, a second protruding block is disposed on a side of the stator seat facing the card slot ring, the second protruding block is disposed in the second card slot; the hollow shaft penetrates the motor; the nozzle worm wheel is connected to the rotor, and the hollow shaft is away from the hollow shaft One end of the nozzle holder protrudes into the worm wheel of the nozzle, and one end of the nozzle worm wheel is connected to the nozzle cover away from the motor; the nozzle, the hollow shaft and the nozzle worm wheel are connected to each other.

A further solution is that the nozzle holder, the motor and the nozzle worm wheel are arranged in a line, and both ends of the hollow shaft in the axial direction are respectively arranged in the motor along the extending direction of the motor toward the nozzle holder and the nozzle worm wheel.

In a further aspect, a first opening is disposed at an end of the first card slot away from the second card slot, and a second opening is disposed at an end of the second card slot away from the first card slot.

In a further aspect, the rotor includes a magnetic piece and a back cover, and the rear cover is provided with a protruding strip toward the magnetic piece, the protruding strip is disposed between the two magnetic pieces, and the rear cover is connected to the spray head worm wheel.

A further solution is that the stator seat is provided with a through groove, the hollow shaft passes through the through groove along the extending direction of the through groove, and one end of the nozzle close to the motor extends into the through groove, and a sealing ring is disposed in the through groove.

In a further solution, a spring is disposed in the mount, and the spring is disposed on a side of the slot ring facing the nozzle seat and disposed between the mount and the nozzle seat.

In order to achieve the above second object, the unmanned aerial vehicle provided by the present invention is provided with a medicine barrel and a plug-in type brushless centrifugal nozzle for connecting the medicine barrel, and the plug-in type brushless centrifugal nozzle comprises a mounting seat, a card slot ring and a medicine nozzle seat. The motor, the hollow shaft and the nozzle worm wheel are arranged in the mounting seat, the first end of the card slot ring is provided with a first card slot, and the second end of the card slot ring is provided with a second card slot, along the card slot ring The first slot of the axial direction is disposed above the second slot; the nozzle seat is provided with a nozzle, and the first protrusion block is disposed on a side of the nozzle seat facing the slot ring, and the first protrusion block is disposed In the first card slot; the motor comprises a stator seat, a stator disposed on the stator seat, a rotor disposed at a periphery of the stator, and a second protrusion block is disposed on a side of the stator seat facing the card slot ring, and the second protrusion block is disposed In the second card slot; the hollow shaft penetrates the motor; the nozzle worm wheel is connected to the rotor, and the end of the hollow shaft away from the nozzle seat extends into the worm wheel of the nozzle; the end of the nozzle worm wheel is connected to the nozzle cover at one end away from the motor; the nozzle, the hollow shaft and the nozzle The worm gears are connected to each other.

Beneficial effect

The card slot ring, the nozzle holder and the motor are sequentially installed in the mounting seat, and the nozzle seat and the motor are connected in the mounting seat through the protruding block and the through slot on the card slot ring, and the mounting seat and the card slot ring For two independent parts, it can effectively reduce the processing difficulty, and the stand can be processed separately to adapt to the requirements of different mounting holes, improve the versatility of the mount; the connection between the raised block and the through slot on the card slot ring It can be quickly disassembled and plugged in, the parts can be replaced quickly, and the work efficiency can be effectively improved; the bumps connected to the motor and the slot ring are arranged on the stator base, which can reduce the number of parts processed and installed, and improve the installation and use. Reliability; after the nozzle is connected to the outer pipe, the syrup flows into the hollow shaft in the motor, and then flows into the worm wheel of the nozzle to spray from the side slit of the nozzle turbine. During this process, the motor rotates through the outer rotor, and the hollow shaft does not rotate. The structure of the whole waterway is simple, the wear is reduced, and the service life is prolonged. The worm wheel of the nozzle is used to make the syrup flowing into the worm wheel of the nozzle without the action of high pressure. And the effect of high atomization, and prolong life.

Moreover, the first protruding block on the nozzle seat can slide into the first card slot through the first opening, and the second protruding block on the stator seat can slide into the second card slot through the second opening to complete the nozzle The connection between the seat and the card slot ring.

Furthermore, the motor uses the rotation mode of the outer rotor to drive the worm wheel of the nozzle, and the protruding strip of the back cover is disposed between the two magnetic sheets to complete the connection between the back cover and the magnetic piece, so that the rotation of the back cover is driven when the magnetic piece rotates to drive The nozzle worm wheel connected to the back cover rotates.

At the same time, the hollow shaft is disposed in the motor through the through slot in the stator seat, and one end of the nozzle is also disposed in the through slot, so that the nozzle is connected with the hollow shaft, and the sealing ring in the through slot is used to improve the inside of the through slot. The sealability prevents the penetration of the syrup between the nozzle and the hollow shaft to cause corrosion in the component.

In addition, a spring provided in the mounting seat is used to prevent the nozzle holder and the stator seat from being disengaged from the slot on the slot ring during the spraying vibration.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a structural view showing an embodiment of a plug-in type brushless centrifugal nozzle of the present invention.

Figure 2 is a cross-sectional view taken along line A-A of Figure 1.

Figure 3 is an exploded view of the mounting seat of the plug-in type brushless centrifugal nozzle of the present invention.

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Embodiments of the invention

The plug-in type brushless centrifugal nozzle of the invention is applied to the agricultural plant protection drone, wherein the stator seat and the medicine nozzle seat of the nozzle are connected by the convex block and the card slot in the card slot ring, and the plug-in type installation and disassembly are convenient. Fast, the motor in the nozzle adopts the rotation of the outer rotor to drive the worm wheel of the nozzle to rotate, so that the nozzle can realize the large spray width and high atomization effect without the action of high pressure, thereby reducing the wear of the parts inside the nozzle and prolonging the service life.

The drone provided by the invention is provided with a plug-in type brushless centrifugal nozzle for storing the medicine medicine barrel and the connecting medicine barrel, the medicine water in the medicine barrel flows into the nozzle, and the nozzle sprays the medicine. Referring to FIG. 1 and FIG. 2, the plug-in brushless centrifugal nozzle comprises a mounting seat 1, a card slot ring 2 disposed in the mounting seat 2, a nozzle holder 3 connecting the card slot ring 2, and a motor 4 connecting the card slot ring 2. a hollow shaft 5 disposed in the motor 4 and communicating with the nozzle 31 in the nozzle holder 3 and a nozzle worm wheel 6 connected to the motor 4, the nozzle worm wheel 6 is also in communication with the hollow shaft 5, and the nozzle worm wheel 6 is disposed away from the end of the motor 4 Nozzle cover 7. The nozzle holder 3, the motor 4 and the nozzle worm wheel 6 are arranged in line. In the present embodiment, the center lines of the nozzle holder 3, the motor 4 and the nozzle worm wheel 6 are on the same straight line, and both ends of the hollow shaft 5 in the axial direction are The motor 4 is disposed along the extending direction of the motor 4 toward the nozzle holder 3 and the nozzle worm wheel 6, respectively.

The outer side of the mount 1 is provided with a plurality of mounting holes 10 for positioning the spray head on the drone.

The card slot ring 2 is disposed in the mounting seat 1. The card slot ring 2 is used for completing the connection between the mounting seat 1 and other parts of the nozzle. The mounting seat 1 and the card slot ring 2 are two independent parts, and the processing is effectively reduced by the sole processing. Difficulty, and the mounting of the mount 1 can be adapted to different mounting holes to improve the versatility of the mount 1.

Referring to FIG. 3, the first end of the card slot ring 2 is provided with a first card slot 21, and the second end of the card slot ring 2 is provided with a second card slot 22, and the first card slot 21 is along the axial direction of the card slot ring 2. It is disposed above the second card slot 22. The first card slot 21 and the second card slot 22 may be provided in different shapes depending on the connected components.

The nozzle holder 3 is disposed in the mounting seat 1 , and the first protrusion block 32 is disposed on a side of the medicine nozzle holder 3 facing the card slot ring 2 , and the first protrusion block 32 is disposed in the first card slot 21 to complete the medicine nozzle The connection between the seat 3 and the card slot ring 2. A nozzle 31 is provided on the nozzle holder 3. In the embodiment, the nozzle holder 3 is further provided with an opening, and when the nozzle is mounted on the drone, the electric wire can be easily connected to the motor 4 through the nozzle holder 3.

The motor 4 includes a stator base 41, a stator 42 disposed on the stator base 41, and a rotor disposed at a periphery of the stator 42. A second protruding block 48 is disposed on a side of the stator seat 41 facing the card slot ring 2, and the second protruding block 14 is disposed in the second card slot 22, and is disposed on the protruding block connected to the card slot on the card slot ring 2. On the stator base 41, the number of parts processed and mounted can be reduced, and the reliability of installation and use can be improved.

A first opening 23 is defined in one end of the first card slot 21 away from the second slot 22, so that the first protruding block 32 can be quickly slid into the first card slot 21 to complete the installation of the nozzle holder 3. A second opening 24 is disposed at one end of the second card slot 22 away from the first card slot 21, so that the second protruding block 48 can be quickly slid into the second card slot 21 to complete the mounting of the stator seat 41. The opening is arranged to facilitate the protrusion. The block can be quickly inserted into the card slot 2 in the card slot and quickly removed when removed. In order to improve the stability of the connection, the card slot ring 2 can be provided with a plurality of first card slots 21 and a second card slot 22, and the medicine nozzle base 3 can be provided with a plurality of first protrusion blocks 32, and the stator block 41 can be A plurality of second raised blocks 48 are provided.

In this embodiment, the first card slot 21 is arranged in a straight line, and the second card slot 22 is arranged in multiple stages. The first card slot 22 includes a three-slot slot, the first slot body 221 is connected to the opening 24, and the second slot The body 222 is perpendicular to the first groove body 221, and the third groove body 223 is perpendicular to the second groove body 222. Since the second opening 24 faces downward, in order to prevent the stator seat 41 from being separated from the card slot ring 2, the second latching groove 22 may be provided with a stopper 25 to prevent the second protruding block 48 from falling from the second card slot 22. In practical applications, the shapes of the first card slot 21 and the second card slot 22 and the positions of the first opening 23 and the second opening 24 may be determined according to actual applications.

Since the first card slot 21 is disposed above the second card slot 22 in the axial direction of the card slot ring 2, the nozzle holder 3 that connects the first card slot 21 is disposed in the stator seat 41 that connects the second card slot 22. Above.

In the present embodiment, the stator 42 is a silicon steel sheet. The rotor includes a magnetic piece 43 and a rear cover 44. The magnetic piece 43 is disposed on the outer periphery of the silicon steel sheet. The rear cover 44 is provided with a protruding strip toward the magnetic piece 43, the protruding strip is disposed between the two magnetic sheets 43, and the rear cover 44 is connected to the nozzle. Worm gear 6. The motor 4 drives the rotation of the lance wheel 6 by using the rotation mode of the outer rotor. The protruding strip of the rear cover 44 is disposed between two adjacent magnetic pieces 43 to complete the connection of the rear cover 44 and the magnetic piece 43 to make the magnetic piece. When the rotation 43 rotates, the rear cover 44 rotates to drive the nozzle worm wheel 6 and the nozzle cover 7 connected to the rear cover 44 to rotate, the rotating nozzle worm wheel 6 can realize a large spray width, and the motor 4 is used to drive the nozzle worm wheel 6 to spray the syrup, so that the syrup is not It is necessary to realize large spray width and atomization effect under the action of high pressure, which can reduce the wear of the nozzle and prolong the service life.

The stator seat 41 is provided with a through groove 45. The hollow shaft 5 passes through the through groove 45 in the extending direction of the through groove 45. In the embodiment, the hollow shaft 5 also passes through the center hole of the silicon steel sheet. The end of the nozzle 31 adjacent to the motor 4 extends into the through slot 45. The through slot 45 is provided with a sealing ring 46. The hollow shaft 5 is disposed in the motor 4 through the through slot 45 of the stator base 41, and is also disposed in the through slot 45. One end of the medicine nozzle 31 is provided to facilitate communication between the medicine nozzle 31 and the hollow shaft 5. The sealing ring 46 in the through groove 45 is used for improving the sealing property in the through groove 45 and avoiding the circulation between the medicine nozzle 31 and the hollow shaft 5. The penetration of the syrup into the other parts of the nozzle causes corrosion.

The nozzle 31 communicates with the hollow shaft 5 in the through groove 45, and one end of the hollow shaft 5 away from the nozzle holder 3 can extend into the connecting nozzle worm wheel 6, completing the communication between the hollow shaft 5 and the nozzle worm wheel 6.

In the present embodiment, the hollow shaft 5 also penetrates the rear cover 44. A bearing 47 is further disposed between the hollow shaft 5 and the rear cover 44. The bearing 47 is used to separate the hollow shaft 5 from the rear cover 44 to prevent the rear cover 44 from being The hollow shaft 5 is touched during the rotation.

The mounting seat 1 is further provided with a spring 8 disposed on a side of the card slot ring 2 facing the nozzle holder 3 and disposed between the mounting seat 1 and the nozzle holder 3, and a spring 8 disposed in the mounting seat 1 is used for The nozzle holder 3 and the stator base 41 are prevented from being disengaged from the card slot on the card slot ring 2 during the vibration of the spray.

A card slot ring 2, a nozzle holder 3 and a motor 4 are sequentially installed in the mounting seat 1. The nozzle holder 3 and the motor 4 are connected to the card slot on the card slot ring 2 through the protrusion block to complete the installation in the mounting seat 1. The mounting seat 1 and the slotted ring 2 are two independent parts, which effectively reduces the processing difficulty, and the mounting seat 1 can be separately processed to meet the requirements of different mounting holes, thereby improving the versatility of the mounting seat 1; The connection mode with the card slot on the slotted ring 2 can be quickly disassembled and plugged and installed, the parts are replaced quickly, and the working efficiency is effectively improved; after the nozzle 31 is connected to the outer pipe, the syrup flows from the nozzle 31 The hollow shaft 5 in the motor 4 flows into the nozzle worm wheel 6 to spray from the side slit of the nozzle turbine 6. During this process, the motor 4 rotates by the outer rotor to drive the nozzle worm wheel 6 to rotate, the hollow shaft 5 does not rotate, and the nozzle worm wheel 6 and The rotation of the nozzle cover 7 realizes a large spray width, so that the entire water passage structure is simple, the wear is reduced, and the service life is prolonged. The nozzle worm wheel 6 is used to make the syrup flowing into the worm wheel 6 of the nozzle without the high pressure, thereby achieving a large spray width and high atomization. Effect And extend the service life.

Finally, it should be emphasized that the present invention is not limited to the above embodiments, and variations such as changes in the structure and shape of the first card slot, the second card slot, the stator base, and the nozzle holder should also be included in the scope of protection of the claims of the present invention. Inside.

Industrial applicability

The invention is used for the plug-in type brushless centrifugal nozzle and the application of the drone, and the invention completes the setting and installation of the nozzle holder and the motor in the mounting seat by means of the convex block and the through groove on the card slot ring. The seat and the card slot ring are two separate parts, which can effectively reduce the processing difficulty, and the stand can be separately processed to meet the requirements of different mounting holes, improve the versatility of the mount; and the bump block and the card slot ring The connection method of the groove and the connection can be quickly disassembled and plugged and installed, the parts can be replaced quickly, and the working efficiency can be effectively improved; the convex block connecting the motor and the card slot ring is arranged on the stator seat, which can reduce the processing and installation. The number of parts increases the reliability of installation and use; after the nozzle is connected to the outer pipe, the syrup flows into the hollow shaft in the motor, and then flows into the worm wheel of the nozzle to spray from the side slit of the nozzle turbine. In the process, the motor passes through the outer rotor. Rotating, the hollow shaft does not rotate, so that the entire waterway structure is simple, reducing wear and prolonging the service life. The nozzle worm wheel is used to make the syrup flowing into the nozzle worm wheel not need high pressure. It can achieve the effect of large amplitude and high-atomized spray under the influence of, and prolong life.

Claims

A plug-in brushless centrifugal nozzle for a drone, comprising:

Mounting seat

a card slot ring, the card slot ring is disposed in the mounting seat, the first end of the card slot ring is provided with a first card slot, and the second end of the card slot ring is provided with a second card slot The first card slot is disposed above the second card slot in an axial direction of the card slot ring;

a medicine nozzle holder, wherein the medicine nozzle holder is provided with a medicine nozzle, a side of the medicine nozzle holder facing the card slot ring is provided with a first convex block, and the first convex block is disposed at the first Inside the card slot;

a motor including a stator base, a stator disposed on the stator base, a rotor disposed at a periphery of the stator, and a second raised block disposed on a side of the stator seat toward the card slot ring Two protruding blocks are disposed in the second card slot;

a hollow shaft, the hollow shaft penetrating the motor;

a nozzle worm wheel, the nozzle worm wheel is connected to the rotor, the hollow shaft extends away from the end of the nozzle holder into the worm wheel of the nozzle, and the end of the nozzle worm wheel is connected to the nozzle cover away from one end of the motor;

The nozzle, the hollow shaft, and the nozzle worm wheel are in communication with each other.
The plug-in type brushless centrifugal nozzle according to claim 1, wherein:

The nozzle holder, the motor and the nozzle worm wheel are disposed in a line, and both ends of the hollow shaft in the axial direction are respectively along the motor toward the nozzle holder and the nozzle worm wheel in the motor. Extension direction setting.
The plug-in type brushless centrifugal nozzle according to claim 1, wherein:

A first opening is disposed at an end of the first card slot away from the second card slot, and a second opening is disposed at an end of the second card slot away from the first card slot.
The plug-in type brushless centrifugal nozzle according to claim 1, wherein:

The rotor includes a magnetic sheet and a back cover, and the back cover is provided with a protruding strip toward the magnetic sheet, the protruding strip is disposed between the two magnetic sheets, and the rear cover is connected to the nozzle worm wheel.
The plug-in type brushless centrifugal nozzle according to claim 4, wherein:

a through slot is disposed in the stator seat, the hollow shaft passes through the through slot along an extending direction of the through slot, and an end of the nozzle near the motor extends into the through slot, and the through hole A seal ring is provided in the groove.
The plug-in type brushless centrifugal nozzle according to any one of claims 1 to 5, characterized in that:

A spring is disposed in the mounting seat, and the spring is disposed on a side of the card slot ring facing the nozzle holder and disposed between the mounting seat and the nozzle holder.
The drone is characterized in that: the drone is provided with a medicine barrel and a plug-in type brushless centrifugal nozzle connecting the medicine barrel, and the plug-in type brushless centrifugal nozzle comprises a mounting seat, a card slot ring and a medicine a nozzle holder, a motor, a hollow shaft and a nozzle worm wheel, wherein the card slot ring is disposed in the mounting seat, the first end of the card slot ring is provided with a first card slot, and the second end of the card slot ring is disposed There is a second card slot, the first card slot is disposed above the second card slot in an axial direction of the card slot ring; the drug nozzle seat is provided with a medicine nozzle, and the medicine nozzle seat is oriented One side of the card slot ring is provided with a first protruding block, the first protruding block is disposed in the first card slot; the motor comprises a stator seat, a stator disposed on the stator seat, and is disposed at a rotor on a periphery of the stator, a side of the stator seat facing the card slot ring is provided with a second protruding block, the second protruding block is disposed in the second card slot; The motor; the nozzle worm wheel is connected to the rotor, and the hollow shaft extends away from the end of the nozzle holder into the nozzle worm wheel One end of the head remote from the head cover connected to the worm wheel motor; the mouthpiece, the hollow shaft and the worm wheel head communicate with each other.
The drone according to claim 7, wherein:

The nozzle holder, the motor and the nozzle worm wheel are disposed in a line, and both ends of the hollow shaft in the axial direction are respectively along the motor toward the nozzle holder and the nozzle worm wheel in the motor. Extension direction setting.
The drone according to claim 7, wherein:

A first opening is disposed at an end of the first card slot away from the second card slot, and a second opening is disposed at an end of the second card slot away from the first card slot.
The drone according to claim 7, wherein:

The rotor includes a magnetic sheet and a back cover, and the back cover is provided with a protruding strip toward the magnetic sheet, the protruding strip is disposed between the two magnetic sheets, and the rear cover is connected to the nozzle worm wheel.
The drone according to claim 10, characterized in that:

a through slot is disposed in the stator seat, the hollow shaft passes through the through slot along an extending direction of the through slot, and an end of the nozzle near the motor extends into the through slot, and the through hole A seal ring is provided in the groove.
The drone according to any one of claims 7 to 11, characterized in that:

A spring is disposed in the mounting seat, and the spring is disposed on a side of the card slot ring facing the nozzle holder and disposed between the mounting seat and the nozzle holder.