CN109701771B - Multistage steady flow centrifugal nozzle and assembly - Google Patents
Multistage steady flow centrifugal nozzle and assembly Download PDFInfo
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- CN109701771B CN109701771B CN201811639346.0A CN201811639346A CN109701771B CN 109701771 B CN109701771 B CN 109701771B CN 201811639346 A CN201811639346 A CN 201811639346A CN 109701771 B CN109701771 B CN 109701771B
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- 239000007788 liquid Substances 0.000 claims description 46
- 238000007789 sealing Methods 0.000 claims description 23
- 238000005192 partition Methods 0.000 claims description 13
- 239000003595 mist Substances 0.000 abstract description 4
- 238000009827 uniform distribution Methods 0.000 abstract 1
- 239000003814 drug Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001632 homeopathic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The invention discloses a multistage steady flow centrifugal nozzle and a multistage steady flow centrifugal nozzle assembly, which comprise a housing, a motor, a drainage shell, an atomizing disk and an adjusting cover, wherein the housing is provided with a plurality of flow guide grooves; the motor is fixed in the housing; the lower part of the drainage shell is provided with a drainage hole, and the upper end of the drainage hole is provided with a drainage surface; the drainage shell is also provided with a gas guide ring which is arranged at the periphery of the drainage hole and at the bottom surface of the drainage surface, and the gas guide ring, the drainage surface and the drainage surface form an annular cavity with a downward opening; the drainage shell is fixed at the bottom end of the housing, and the outer edge of the drainage surface is matched with and connected with the shell wall at the bottom end of the housing; a boss is arranged in the atomizing disk and is provided with an atomizing disk shaft hole; the upper part of the adjusting cover is provided with an adjusting hole, and the lower end of the adjusting hole is provided with a cover body; the adjusting cover covers the atomizing disk, and the adjusting hole is sleeved outside the boss and is movably connected with the boss; the motor shaft extends into the drainage shell, is inserted into the atomizing disk shaft hole and is fixedly connected with the atomizing disk shaft hole; the upper end of the adjusting cover is inserted into the annular cavity of the drainage shell. The invention has the advantages of small structure size of the atomizing disk, uniform distribution of the generated mist flow field, concentrated range, no leakage and the like.
Description
Technical Field
The invention belongs to the field of plant protection machinery, and relates to a nozzle, in particular to a multistage steady flow centrifugal nozzle and a multistage steady flow centrifugal component.
Background
The centrifugal nozzle is suitable for occasions with high concentration, ultralow quantity, high coverage density and high requirements on the particle size of fog drops. The key atomizing part of the centrifugal nozzle is an atomizing disc, and under the same flow, the thickness of a liquid film in the atomizing disc and the throwing speed of liquid medicine are key factors for determining the particle size of fog drops and the atomizing uniformity, wherein the thickness of the liquid film and the throwing speed of the liquid medicine are determined by the structural form in the atomizing disc, and the rotating speed and the diameter of the atomizing disc are determined jointly. The smaller the thickness of the liquid film is, the higher the liquid medicine throwing-out speed is, and the better the atomization effect is. At present, the structure form of the atomizing disk has two modes, namely an open type atomizing disk and a closed type atomizing disk, the two modes have a certain effect on the uniform spreading of a liquid film under the condition of low flow, but under the working condition of high flow, the liquid film thickness of the open type atomizing disk exceeds a constraint range to cause the local sedimentation of liquid medicine to cause the reduction of atomizing uniformity, and the closed type atomizing disk starts to have the conditions of overflow leakage and the like due to the limitation of the size of an inner runner. The bottom surface diversion trenches of the current centrifugal nozzle atomizing disc are distributed in the plane, the liquid flow is paved into a uniform liquid film, enough rotation travel is needed, the common outer diameter is larger for obtaining a better atomization effect, the result is that the initial diameter of a mist flow field is overlarge, so that under the influence of an external wind field, the drift is aggravated, and the mist drop deposition effect is poorer.
Disclosure of Invention
The invention provides a multistage steady flow centrifugal nozzle and a multistage steady flow centrifugal nozzle assembly, which are used for overcoming the defects of the prior art.
In order to achieve the above purpose, the invention provides a multistage steady flow centrifugal nozzle and an assembly, comprising a housing, a motor, a drainage shell, an atomizing disk and an adjusting cover; the housing is hollow, and the motor is fixed in the housing; the lower part of the drainage shell is provided with a drainage hole, and the upper end of the drainage hole is provided with a drainage surface extending outwards; the drainage shell is also provided with a gas guide ring which is arranged at the periphery of the drainage hole and at the bottom surface of the drainage surface, and the gas guide ring, the drainage surface and the drainage surface form an annular cavity with a downward opening; the drainage shell is fixed at the bottom end of the housing, and the outer edge of the drainage surface is matched with and connected with the shell wall at the bottom end of the housing; a boss is arranged in the atomizing disk and is provided with an atomizing disk shaft hole; the upper part of the adjusting cover is provided with an adjusting hole, and the lower end of the adjusting hole is provided with a cover body extending outwards; the adjusting cover is covered on the atomizing disk, the adjusting hole is sleeved outside the boss and is movably connected with the boss, and the adjusting hole and the boss can move relatively along the axial direction of the adjusting hole and the boss; a motor shaft of the motor extends into the drainage shell and is inserted into the atomizing disk shaft hole to be fixedly connected with the atomizing disk shaft hole; the upper end of the adjusting cover is inserted into the annular cavity of the drainage shell; the motor shaft rotates to drive the atomizing disk to rotate, and the adjusting cover rotates along with the atomizing disk.
Further, the present invention provides a multi-stage stationary flow centrifugal nozzle and assembly, which may also have the following features: the outer side of the boss is provided with a plurality of blades which are spirally arranged around the boss and are recessed to form a spiral groove; the outer side wall of the blade is provided with external threads arranged along the spiral direction; the inner wall of the adjusting hole is provided with a plurality of groups of internal threads, the internal threads are in one-to-one correspondence with the blades, and the internal threads are matched with the external threads of the blades; the adjusting cover is in threaded connection with the atomizing disk and can move relatively.
Further, the present invention provides a multi-stage stationary flow centrifugal nozzle and assembly, which may also have the following features: wherein, the spiral setting direction of blade is opposite with the rotation direction of atomizing disk.
Further, the present invention provides a multi-stage stationary flow centrifugal nozzle and assembly, which may also have the following features: wherein, the upper end of the internal thread of the adjusting hole is provided with an inward-sinking internal thread end face; the adjusting cover moves towards the atomizing disk, and when the inner thread end face abuts against the upper end face of the blade, the adjusting cover stops moving towards the atomizing disk.
Further, the present invention provides a multi-stage stationary flow centrifugal nozzle and assembly, which may also have the following features: wherein, the inside of the housing is provided with a baffle plate; a motor installation part is arranged above the partition board, the motor is fixedly arranged on the partition board, the partition board is provided with a housing shaft hole, and a motor shaft penetrates through the housing shaft hole; the lower part of the partition board is provided with a liquid inflow part, and the side wall is provided with a pipeline joint communicated with the liquid inflow part.
Further, the present invention provides a multi-stage stationary flow centrifugal nozzle and assembly, which may also have the following features: the sealing ring is provided with a sealing ring shaft hole; the lower surface of the baffle plate is provided with a shaft hole flange which is annularly arranged along the hole edge of the shaft hole of the housing; the upper surface of the sealing ring is provided with a sealing groove which is annularly arranged along the hole edge of the sealing ring shaft hole; the sealing ring shaft hole is fixedly sleeved on the motor shaft, the shaft hole flange is embedded in the sealing groove, and liquid in the liquid inflow part presses a gap between the sealing groove and the shaft hole flange.
Further, the present invention provides a multi-stage stationary flow centrifugal nozzle and assembly, which may also have the following features: wherein, the atomizing disk is provided with at least one convex lower steady flow ring body which is arranged around the boss; the lower surface of the cover body of the adjusting cover is provided with at least one concave upper steady flow ring groove; the upper steady flow ring grooves are in one-to-one correspondence with the lower steady flow ring bodies, the shapes of the upper steady flow ring grooves are matched, and the upper steady flow ring grooves cover the upper portions of the lower steady flow ring bodies to form flow channels between the upper steady flow ring grooves and the lower steady flow ring bodies.
Further, the present invention provides a multi-stage stationary flow centrifugal nozzle and assembly, which may also have the following features: the upper end of the adjusting hole is provided with a plurality of air guide sheets which are inserted into the annular cavity of the drainage shell; the adjusting cover rotates along with the atomizing disk, and the air guide piece rotates to suck air into the adjusting cover.
Further, the present invention provides a multi-stage stationary flow centrifugal nozzle and assembly, which may also have the following features: wherein the edge of the atomizing disk is tilted upwards; the atomizing disk is provided with a plurality of diversion trenches which are uniformly distributed on the inner wall of the edge of the atomizing disk along the circumference in a divergent mode; the top end of the diversion trench is an open port.
Further, the present invention provides a multi-stage stationary flow centrifugal nozzle and assembly, which may also have the following features: wherein, the upper end of the edge of the atomizing disk is provided with a plurality of guide teeth; the upper surface of the guide tooth is horizontal and is level and continuous with the upper end surface of the edge of the atomizing disk; the upper surface of the guide tooth is triangular, and the direction of the long tooth edge of the guide tooth from inside to outside is opposite to the direction of the motor shaft; the extension line of the long tooth edge points to the apex angle of the upper end of the diversion trench.
The invention has the beneficial effects that: the invention provides a multistage steady flow centrifugal nozzle and a multistage steady flow centrifugal nozzle assembly, wherein an atomizing disk and the inside of an adjusting cover form a space flow channel through a lower steady flow ring body and an upper steady flow ring groove which correspond to each other, so that multistage atomization is formed, the diameter of the atomizing disk can be greatly reduced, the diameter of a mist flow field at an outlet of the centrifugal nozzle is reduced, and the drift control is easy; the atomizing disc is connected with the adjusting cover through the screw pair, the flow channel is enlarged at equal intervals when the flow rate of the liquid is large, and the steering is opposite to the screw guiding, and the adjusting cover is automatically closed to the atomizing disc when rotating, so that the liquid film is ensured to be uniformly distributed at all parts, and the optimal distribution uniformity can be always obtained under different flow rates; by adopting air seal, leakage can not occur when the up-down floating clearance of the adjusting cover changes.
Drawings
FIG. 1a is a schematic view of the exterior structure of a multi-stage stationary flow centrifugal nozzle and assembly;
FIG. 1b is a cross-sectional view A-A of FIG. 1 a;
FIG. 2a is a schematic view of the exterior structure of the housing;
FIG. 2b is a partial cutaway perspective view of the housing;
fig. 3 is a perspective view of the motor cover;
FIG. 4 is a partial cutaway perspective view of a seal ring;
FIG. 5a is a top view of the drainage shell;
FIG. 5b is a cross-sectional perspective view of section A-A of FIG. 5 a;
FIG. 6a is a perspective view of an atomizer disk;
FIG. 6b is a top view of the atomizing disk;
FIG. 6c is a cross-sectional view A-A of FIG. 6 b;
FIG. 6d is an enlarged view of area I of FIG. 6 b;
FIG. 7a is a perspective view of the adjustment cap;
FIG. 7b is a front view of the adjustment cap;
FIG. 7c is a cross-sectional view A-A of FIG. 7 b;
fig. 7d is a bottom view of the adjustment cap.
Detailed Description
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
As shown in fig. 1a and 1b, the present invention provides a multistage stationary flow centrifugal nozzle and assembly comprising a housing 1, a motor 2, a sealing ring 3, a drain housing 4, an atomizing disk 5 and an adjustment cap 6.
As shown in fig. 1a, 1b, 2a, 2b and 3, the housing 1 is hollow, and has a partition 11 therein, and the partition 11 has a motor mounting portion 12 above and a liquid inflow portion 13 below.
The motor 2 is placed in the motor mounting portion 12 and is fixedly arranged on the partition plate 11 through a screw 21, the center of the partition plate 11 is provided with a housing shaft hole 14, and a motor shaft 22 of the motor 2 penetrates through the housing shaft hole 14 and stretches into the lower side. The lower surface of the partition 11 has an annular shaft hole flange 141 provided along the hole edge of the housing shaft hole 14.
The upper end face of the housing 1 has a number of mounting holes 15 for attachment of a work tool or other platform. The housing 1 further comprises a motor cover 16, the motor cover 16 covering the motor 2. The upper end surface of the motor cover 16 is flush with the upper end surface of the housing 1, and when the housing 1 is fixed to a working tool or other platform, the motor cover 16 located inside can further fix the motor 2.
The side wall of the liquid inflow portion 13 is provided with a pipe joint 17 communicating therewith for connecting a liquid supply pipe. The pipe joint 17 is integrated with the housing 1, so that the number of parts is reduced, and leakage at the assembly position is effectively prevented.
As shown in fig. 1a, 1b and 4, the seal ring 3 has an inverted conical table shape with a seal ring shaft hole 31 in the center. The upper surface of the seal ring 3 has a seal groove 311 provided annularly along the hole edge of the seal ring shaft hole 31.
The sealing ring 3 is made of elastic material, the sealing ring shaft hole 31 is fixedly sleeved on the motor shaft 22 in a sealing way, the shaft hole flange 141 of the housing 1 is embedded in the sealing groove 311 of the sealing ring 3, and the liquid in the liquid inflow part 13 presses the gap between the sealing groove 311 and the shaft hole flange 141, so that the liquid is prevented from flowing into the motor mounting part 12 from the housing shaft hole 14.
As shown in fig. 1a, 1b, 5a and 5b, the drainage shell 4 has a drainage hole 41 at the lower part, and the upper end of the drainage hole 41 has a drainage surface 42 extending outwards.
The drainage shell 4 further has a gas guide ring 43, and the gas guide ring 43 is provided on the periphery of the drainage hole 41 and on the bottom surface of the drainage surface 42. The outer wall of the drainage hole 41, the bottom surface of the drainage surface 42 and the air guide ring 43 form an annular cavity 44 with a downward opening.
The drainage shell 4 is fixed at the bottom end of the housing 1, and the outer edge of the drainage surface 42 is matched with and continuous with the shell wall of the bottom end of the liquid inflow portion 13.
As shown in fig. 1a, 1b, 6a, 6b, 6c and 6d, the atomizing disk 5 has a disk shape, the edge of which is tilted upward, and the inner center of which is provided with a boss 51. The boss 51 has an atomizing disk shaft hole 52 at the center. The atomizing disk shaft hole 52 is a stepped hole, and the inner diameter of the upper portion thereof is larger than the inner diameter of the lower portion thereof.
The motor shaft 22 passing through the housing shaft hole 14 extends into the drain housing 4 and is inserted into the atomizing disk shaft hole 52 of the atomizing disk 5. The motor shaft 22 is in interference connection with the upper part of the atomizing disk shaft hole 52, so that the atomizing disk 5 rotates along with the motor shaft 22. The lower part of the atomizing disk shaft hole 52 is used for exhausting the air in the shaft hole, so that the connection is more reliable.
The outer side of the boss 51 has three evenly distributed blades 53. The vane 53 is spirally disposed around the boss 51, and is recessed to form a spiral groove 531. The outer side wall of the vane 53 has an external thread 532 provided along the spiral direction thereof, that is, the thread guide of the external thread 532 coincides with the spiral direction of the vane 53.
Wherein the direction of the spiral arrangement of the vanes 53 is opposite to the direction of rotation of the atomizer disk 5. As shown in fig. 6a and 6b, when the atomizing disk 5 is viewed from above, the spiral arrangement direction of the blades 53 is clockwise, and the atomizing disk 5 is counterclockwise along with the rotation direction of the motor shaft 22.
The bottom surface of the atomizing disk 5 has a raised lower flow stabilizing ring 54 disposed around the boss 51. The longitudinal cross section of the lower stationary flow ring body 54 is in the shape of a regular triangle. The lower steady flow ring body 54 is distributed on the whole bottom surface in the atomizing disk 5, the inner edge of the lower steady flow ring body is connected with the boss 51, and the outer edge of the lower steady flow ring body is connected with the bottom of the upturned edge of the atomizing disk 5.
The atomizing disk 5 is also provided with a plurality of diversion trenches 55, and the diversion trenches 55 are uniformly distributed on the inner wall of the edge of the atomizing disk 5 along the circumference in a divergent mode. The top end of the diversion trench 55 is an open port, and the bottom end is connected with the lower steady flow ring body 54.
The upper end of the rim of the atomizing disk 5 is provided with a plurality of guide teeth 56. The upper surface of the guide teeth 56 is horizontal and is level and continuous with the upper end surface of the edge of the atomizing disk 5. The upper surface of the guide teeth 56 has a triangular shape, and the direction of the longer long tooth edge 561 from inside to outside is opposite to the direction of the atomizing disk 5. As shown in fig. 6d, the long tooth edge 561 has a drainage function, and its extension line points to the vertex angle 551 at the upper end of a certain nearby diversion trench 55, so as to facilitate the outflow of the liquid medicine in a homeopathic manner. The lower surface of the guide teeth 56 is a cone structure formed by two inclined planes, and has the function of reinforcing and supporting.
As shown in fig. 1a, 1b, 7a, 7b, 7c and 7d, the adjusting cover 6 has an adjusting hole 61 at an upper portion thereof, and a cover 62 extending outwardly from a lower end of the adjusting hole 61.
The inner wall of the adjustment hole 61 has three sets of internal threads 611. The internal threads 611 are in one-to-one correspondence with the vanes 53 of the atomizing disk 5, and the internal threads 611 are matched with the external threads 532 of the vanes 53.
The adjusting cover 6 covers the atomizing disk 5, the adjusting hole 61 is sleeved outside the boss 51, the adjusting cover 6 rotates along with the atomizing disk 5 through the internal thread 611 and the external thread 532 in a threaded connection mode, meanwhile, due to the fact that the direction of the threads of the external thread 532 is opposite to the direction of rotation of the atomizing disk 5 and the adjusting cover 6, when the adjusting cover 6 rotates in a follow-up mode, the adjusting cover 6 always has a trend of moving towards the atomizing disk 5, so that the liquid film between the atomizing disk 5 and the adjusting cover 6 is guaranteed to be evenly distributed everywhere, and liquid leakage is avoided. In addition, the adjustment cap 6 and the atomizing disk 5 are relatively movable in the axial direction thereof by the relative rotation of the internal screw 611 and the external screw 532.
The upper end of each set of internal threads 611 has an internally recessed internal thread end face 612. During the movement of the adjustment cap 6 towards the atomizer disk 5, the movement of the adjustment cap 6 towards the atomizer disk 5 is stopped when the internally threaded end surface 612 abuts against the upper end surface 533 of the vane 53.
The upper end of the adjusting hole 61 is provided with a plurality of air guide plates 63. The air guide plate 63 is inserted into the annular cavity 44 of the drainage housing 4, and when the regulating cover 6 rotates with the atomizing disk 5, the rotating air guide plate 63 sucks air into the regulating cover 6.
The air guide piece 63 and the outer wall of the adjusting hole 61 are in transition through a smooth air guide fillet 64.
The lower surface of the cover body 62 of the adjusting cover 6 is provided with an upward concave upper steady flow ring groove 65. The upper steady flow ring groove 65 corresponds to the lower steady flow ring body 54 of the atomizing disk 5, and is matched with the lower steady flow ring body in shape, and the longitudinal section of the upper steady flow ring groove is also in a regular triangle shape. The adjusting cover 6 covers the atomizing disk 5, the upper steady flow ring groove 65 covers the upper steady flow ring body 54, and a flow channel is formed between the upper steady flow ring groove and the lower steady flow ring body.
In this embodiment, the number of the blades of the atomizing disk may be set according to the requirement, and accordingly, the number of the internal thread groups of the adjusting cover is equal to the number of the blades, and the two are in one-to-one correspondence. In addition, the number of the lower steady flow ring of the atomizing disk and the upper steady flow ring of the adjusting cover can be set according to the requirement, and the lower steady flow ring and the upper steady flow ring of the adjusting cover are in one-to-one correspondence and are matched in shape.
In use, the tool is first secured to the tool through the mounting hole 15 of the housing 1. The liquid medicine enters the liquid inflow part 13 and the drainage shell 4 from the outside through the pipeline joint 17, enters the atomizing disk 5 under the flow guiding action of the drainage surface 42 and the inner wall of the drainage hole 41, and fills the cavity formed by the atomizing disk 5, the adjusting cover 6 and the drainage shell 4. The upper end face 533 of the vane 53 and the internal thread end face 612 are limited to ensure the minimum initial volume of the flow passage and ensure that the liquid medicine can smoothly flow in.
Along with the high-speed rotation of the atomizing disk 5, the spiral grooves 531 of the blades 53 screw the liquid medicine into the flow channel formed between the lower steady flow ring body 54 and the upper steady flow ring groove 65, and spread out to form a liquid film, the liquid film is uniformly distributed in the diversion trench 55 along the circumferential direction under the dividing action of the wall of the diversion trench 55, and the liquid film is thrown out along the top angle 551 at the upper end of the diversion trench 55 to the long tooth edge 561 of the diversion tooth 56, so that liquid drops are finally formed.
In the operation process, the air guide plate 63 rotating at high speed generates negative pressure, so that air is sucked into the annular cavity 44 through the air guide round angle 64 and through the gap between the air guide plate 63 and the air guide ring 43, and meanwhile, the air is blocked by the outer wall of the drainage hole 41, and the internal liquid medicine reaches balance under the effect of outwards overflowing pressure from the gap formed by the lower end of the drainage hole 41 and the upper end face 533 of the blade 53, so that an air film with a certain pressure is formed in the annular cavity 44, and the liquid medicine is ensured not to leak.
With the change of the operation requirement, when the flow rate is increased, the instantaneous liquid medicine input amount is larger than the output amount, the liquid medicine pressure in the flow channel formed by the lower steady flow ring body 54 and the upper steady flow ring groove 65 is increased, so that the adjusting cover 6 rotates upwards around the atomizing disk 5 along the external threads 532 of the blades 53 through the internal threads 611, and the upper end faces 533 of the blades 53 are separated from the internal thread end faces 612. At the same time, the air guide plate 63 moves into the annular cavity 44, and the space in the annular cavity 44 is reduced. Under the combined action of the gravity of the adjusting cover 6, the downward component force applied to the side wall of the internal thread 611 by the atomizing disk 5 through the external thread 532 and the air pressure in the annular cavity 44, the adjusting cover 6 always has inward contraction force on the liquid medicine in the atomizing disk 5, so that the flow passage formed by the lower steady flow ring body 54 and the upper steady flow ring groove 65 is always in a stable state, the liquid medicine is prevented from moving in the flow passage due to the abrupt change of the flow, and the uniformity of the circumferential liquid medicine distribution at the outlet of the multistage steady flow centrifugal nozzle is ensured.
Claims (5)
1. A multi-stage steady flow centrifugal nozzle and assembly, characterized in that:
comprises a housing, a motor, a drainage shell, an atomizing disk and an adjusting cover;
the housing is hollow, and the motor is fixed in the housing;
the lower part of the drainage shell is provided with a drainage hole, and the upper end of the drainage hole is provided with a drainage surface extending outwards;
the drainage shell is also provided with a gas guide ring which is arranged at the periphery of the drainage hole and at the bottom surface of the drainage surface, and the gas guide ring, the drainage hole and the bottom surface form an annular cavity with a downward opening;
the drainage shell is fixed at the bottom end of the housing, and the outer edge of the drainage surface is matched with and continuous with the shell wall at the bottom end of the housing;
a boss is arranged in the atomizing disk and provided with an atomizing disk shaft hole;
the upper part of the adjusting cover is provided with an adjusting hole, and the lower end of the adjusting hole is provided with a cover body extending outwards;
the adjusting cover covers the atomizing disk, the adjusting hole is sleeved outside the boss and is movably connected with the boss, and the adjusting hole and the boss can move relatively along the axial direction of the boss;
a motor shaft of the motor extends into the drainage shell and is inserted into the atomizing disk shaft hole to be fixedly connected with the atomizing disk shaft hole;
the upper end of the adjusting cover is inserted into the annular cavity of the drainage shell;
the motor shaft rotates to drive the atomizing disk to rotate, and the adjusting cover rotates along with the atomizing disk;
the outer side of the boss is provided with a plurality of blades which are spirally arranged around the boss and are recessed to form a spiral groove; the outer side wall of the blade is provided with external threads arranged along the spiral direction; the inner wall of the adjusting hole is provided with a plurality of groups of internal threads, the internal threads are in one-to-one correspondence with the blades, and the internal threads are matched with the external threads of the blades; the adjusting cover is in threaded connection with the atomizing disk and can move relatively;
the spiral arrangement direction of the blades is opposite to the rotation direction of the atomizing disk;
the upper end of the internal thread of the adjusting hole is provided with an inward-sinking internal thread end face; the adjusting cover moves towards the atomizing disk, and when the inner threaded end face abuts against the upper end face of the blade, the adjusting cover stops moving towards the atomizing disk;
the atomizing disk is provided with at least one raised lower steady flow ring body which is arranged around the boss; the lower surface of the cover body of the adjusting cover is provided with at least one concave upper steady flow ring groove; the upper steady flow ring grooves are in one-to-one correspondence with the lower steady flow ring bodies, the shapes of the upper steady flow ring grooves are matched, and the upper steady flow ring grooves cover the upper portions of the lower steady flow ring bodies to form flow channels;
the upper end of the adjusting hole is provided with a plurality of air guide sheets which are inserted into the annular cavity of the drainage shell; the adjusting cover rotates along with the atomizing disk, and the air guide plate rotates to suck air into the adjusting cover.
2. The multi-stage flow-stabilizing centrifugal nozzle and assembly according to claim 1, wherein:
wherein, the cover shell is internally provided with a baffle plate;
the motor is fixedly arranged on the partition plate, the partition plate is provided with a housing shaft hole, and the motor shaft penetrates through the housing shaft hole;
the lower part of the partition board is provided with a liquid inflow part, and the side wall is provided with a pipeline joint communicated with the liquid inflow part.
3. The multi-stage flow-stabilizing centrifugal nozzle and assembly according to claim 2, wherein:
the sealing ring is provided with a sealing ring shaft hole;
the lower surface of the partition plate is provided with a shaft hole flange which is annularly arranged along the hole edge of the shaft hole of the housing;
the upper surface of the sealing ring is provided with a sealing groove which is annularly arranged along the hole edge of the sealing ring shaft hole;
the sealing ring shaft hole is fixedly sleeved on the motor shaft, the shaft hole flange is embedded in the sealing groove, and the liquid in the liquid inflow part compresses the gap between the sealing groove and the shaft hole flange.
4. The multi-stage flow-stabilizing centrifugal nozzle and assembly according to claim 1, wherein:
wherein the edge of the atomizing disk is tilted upwards;
the atomizing disk is provided with a plurality of diversion trenches which are uniformly distributed on the inner wall of the edge of the atomizing disk along the circumference in a divergent mode;
the top end of the diversion trench is an open port.
5. The multi-stage flow-stabilizing centrifugal nozzle and assembly according to claim 4, wherein:
the upper end of the edge of the atomizing disk is provided with a plurality of guide teeth;
the upper surface of the guide tooth is horizontal and is level and continuous with the upper end surface of the edge of the atomizing disk;
the upper surface of the guide tooth is triangular, and the direction of the long tooth edge of the guide tooth from inside to outside is opposite to the direction of the motor shaft;
and the extension line of the long tooth edge points to the vertex angle at the upper end of the diversion trench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811639346.0A CN109701771B (en) | 2018-12-29 | 2018-12-29 | Multistage steady flow centrifugal nozzle and assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811639346.0A CN109701771B (en) | 2018-12-29 | 2018-12-29 | Multistage steady flow centrifugal nozzle and assembly |
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| Publication Number | Publication Date |
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| CN109701771A CN109701771A (en) | 2019-05-03 |
| CN109701771B true CN109701771B (en) | 2024-02-13 |
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| CN201811639346.0A Active CN109701771B (en) | 2018-12-29 | 2018-12-29 | Multistage steady flow centrifugal nozzle and assembly |
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| CN112588159A (en) * | 2020-12-11 | 2021-04-02 | 漳州捷龙自动化技术有限公司 | Drum glue mixer capable of stirring uniformly |
| CN114130556B (en) * | 2021-12-02 | 2022-12-13 | 苏州极目机器人科技有限公司 | Centrifugal atomization device and operation equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB623731A (en) * | 1945-03-17 | 1949-05-23 | Carl Andermatt | Apparatus for the conveyance of liquids to atomising discs |
| GB1460132A (en) * | 1974-03-23 | 1976-12-31 | Krauss Maffei Ag | Apparatus for atomising a liquid or pasty substance |
| CN105253304A (en) * | 2015-11-03 | 2016-01-20 | 南京林业大学 | Multi-rotor unmanned aerial vehicle variable spraying system |
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| GB1460132A (en) * | 1974-03-23 | 1976-12-31 | Krauss Maffei Ag | Apparatus for atomising a liquid or pasty substance |
| CN105253304A (en) * | 2015-11-03 | 2016-01-20 | 南京林业大学 | Multi-rotor unmanned aerial vehicle variable spraying system |
| CN107694779A (en) * | 2017-10-09 | 2018-02-16 | 农业部南京农业机械化研究所 | The adaptive fan-shaped mist rotating centrifugal shower nozzle of plant protection unmanned aerial vehicle |
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