CN220081711U - Mixed-flow direct-current fan used on airship in near space - Google Patents
Mixed-flow direct-current fan used on airship in near space Download PDFInfo
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- CN220081711U CN220081711U CN202321456022.XU CN202321456022U CN220081711U CN 220081711 U CN220081711 U CN 220081711U CN 202321456022 U CN202321456022 U CN 202321456022U CN 220081711 U CN220081711 U CN 220081711U
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- Prior art keywords
- bearing
- shaft
- airship
- impeller
- guide cover
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 229910000954 Medium-carbon steel Inorganic materials 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000004519 grease Substances 0.000 claims description 4
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 3
- 239000005437 stratosphere Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 230000010485 coping Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a mixed-flow direct-current fan used on an airship in the near space, and relates to the field of fans. The motor comprises a rotor assembly, a stator assembly, an impeller assembly, an adjusting column, a bolt, a motor front cover, a locking nut and a waveform pad; the rotor assembly comprises a first bearing, a shaft, a rotor core, magnetic steel and a second bearing, the stator assembly comprises a motor shell and a stator core, the impeller assembly comprises a guide cover cap, an upper guide cover cap, an impeller, a lower guide cover cap, a controller and a guide cover, the rotor core is formed by processing medium carbon steel and is in interference fit with the shaft, and the shaft is pressed into the rotor core by an air compressor during assembly.
Description
Technical Field
The utility model relates to the field of fans, in particular to a mixed-flow direct-current fan for an airship in a near space.
Background
The near space airship is one lighter-than-air aircraft and has mainly structure including main air bag, auxiliary air bag, nacelle and nacelle support system, tail, head, landing gear, power propulsion system, etc. The airship is filled with floating body gas helium gas with density less than that of air, and the main air bag filled with helium gas is utilized to generate buoyancy to maintain the airship to suspend in the air. The airship is characterized in that two auxiliary air bags filled with air are arranged in the main air bag, and the pressure of the auxiliary air bags is controlled in real time by using a high-altitude fan. When the pressure of the auxiliary air bag of the airship is controlled, the operation is divided into the operation of pressurization and depressurization, when the auxiliary air bag needs to be depressurized, an air valve is opened, the air in the auxiliary air bag is discharged outwards, and the pressure of the auxiliary air bag is reduced; when the auxiliary air bag needs to be pressurized, the fan is turned on, air is injected into the auxiliary air bag, the pressure of the auxiliary air bag is increased, and the floating weight balance of the airship is changed, so that the overall appearance maintenance control, lift force control, pitching control and the like of the airship are realized, and the control of the flying height and the flying attitude of the airship is further realized. Therefore, the performance of the high-altitude blower is directly related to the suspension time, the speed of the floating down, the maneuvering performance and the like of the airship.
The flying height of the airship in the near space is generally about 20km, and the air in the region is thin and the density is low
Approximately 1/14 of the surface air density, the temperature change is large, and extreme weather is easy to form. Because of special environmental conditions of the stratosphere, the stratosphere airship has higher requirements on the overall design compared with the common fan for realizing the application capabilities of continuous power propulsion, controllable flight, fixed-point hovering, long-time residence of the area and the like of the stratosphere airship, and is mainly characterized in that: low temperature resistance, light weight, high wind pressure, large wind quantity and the like.
The current near space airship has large demand for the low temperature resistant, light weight, high wind pressure and large wind quantity high performance mixed flow fan, while the current near space airship has low temperature resistant, low pressure capability, high noise and low power, and can not be rapidly adapted to complex and changeable near space environments and has weak capability of coping with extreme environments in the use process. The use requirement of the airship in the near space on the fan is difficult to meet.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model aims to provide a mixed-flow direct-current fan for an airship in near space, which can effectively solve the technical problems.
In order to achieve the above object, the present utility model adopts the following technical scheme:
a mixed flow direct current fan used on an airship in the near space comprises a rotor assembly, a stator assembly, an impeller assembly, an adjusting column, a bolt, a motor front cover, a locking nut and a wave pad; the rotor assembly comprises a first bearing, a shaft, a rotor core, magnetic steel and a second bearing, the stator assembly comprises a motor shell and a stator core, the impeller assembly comprises a guide cover, an upper guide cover, an impeller, a lower guide cover, a controller and a guide cover, the rotor core is formed by processing medium carbon steel and is in interference fit with the shaft, the shaft is pressed into the rotor core by an air compressor during assembly, glue is fully coated on the inner surface of the magnetic steel and attached to the outer surface of the rotor core, the first bearing and the second bearing are respectively mounted at two ends of the shaft and the end faces are flush with the shaft, the stator core is formed by laminating and riveting a plurality of silicon steel sheets, an enameled wire is embedded inside the stator core and is thermally sleeved inside the motor shell, the rotor assembly is rotated in the stator assembly through rotation, the motor shell is made of aluminum materials, and the first bearing and the second bearing are coated with low-temperature lubricating grease.
Preferably, the motor front cover is provided with a bearing chamber, the first bearing is arranged in the bearing chamber, the wave pad is rotatably arranged in the controller, and the second bearing is arranged in the controller.
Preferably, the motor front cover and the controller are both arranged inside the motor shell and fixedly connected, and the lower air guide sleeve is fixedly connected with the motor shell.
Preferably, the shaft is provided with a shaft hole, and the impeller is connected with the shaft in a matched manner through the shaft hole and locked with the shaft through a locking nut.
Preferably, the guide cover and the upper guide cover are connected through the adjusting column and then fixed with the lower guide cover through bolts, and a controller is arranged in the guide cover.
Preferably, the air guide sleeve is of an ellipsoidal design, and an included angle of 25-32 degrees is formed between the impeller and the air guide sleeve. The impeller performance is better, the wind pressure and the wind quantity of the fan are larger, and the noise is lower.
The utility model has the advantages that:
according to the utility model, the problems of wind pressure and air quantity of the fan can be solved by designing the air guide sleeve and the motor aluminum shell; the fan bearing adopts low-temperature grease design, and solves the problem of normal operation in a low-temperature environment of-70 ℃ under the environmental condition of near space. Thereby meeting the domestic use requirement of the high-performance fan.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the impeller of the present utility model;
FIG. 3 is a side view of the pod of the present utility model;
FIG. 4 is a side view of the motor housing of the present utility model;
meaning of reference numerals in the drawings:
the air guide device comprises a guide cover 1, an upper guide cover 2, an impeller 3, an adjusting column 4, a lower guide cover 5, a bolt 6, a motor front cover 7, a first bearing 8, a motor shell 9, a locking nut 10, a shaft 11, a rotor core 12, magnetic steel 13, a stator core 14, a second bearing 15, a waveform pad 16, a controller 17 and a guide cover 18.
Description of the embodiments
The utility model is further described and illustrated below in connection with the examples and figures, but is not limited in any way.
As shown in fig. 1 to 4, a mixed-flow direct-current fan for an airship in the near space is composed of three components and a plurality of parts, wherein the components are respectively a rotor component, a stator component and an impeller component, and the parts comprise an adjusting column 4, a bolt 6, a motor front cover 7, a locking nut 10 and a waveform pad 16. The rotor assembly comprises a first bearing 8, a shaft 11, a rotor core 12, magnetic steel 13 and a second bearing 15, the stator assembly comprises a motor shell 9 and a stator core 14, and the impeller assembly comprises a guide cover 1, an upper guide cover 2, an impeller 3, a lower guide cover 5, a controller 17 and a guide cover 18. The rotor core 12 is formed by processing medium carbon steel, the medium carbon steel is in interference fit with the shaft 11, the shaft 11 is pressed into the rotor core 12 by using a pneumatic press in a positioning tool, glue is fully coated on the inner surface of the magnetic steel 13, the magnetic steel is uniformly adhered to the outer surface of the rotor core 12 according to the N, S pole surface, the first bearing 8 is arranged in the front section of the shaft 11, the second bearing 15 is arranged in the rear end of the shaft 11, and the end faces are flush. The stator core 14 is formed by laminating and riveting a plurality of silicon steel sheets, the stator core 14 embeds the enameled wire into the groove according to the winding requirement, and the enameled wire is thermally sleeved in the motor shell 9. The rotor assembly is turned into the stator assembly, the first bearing 8 is installed in the bearing chamber of the motor front cover 7, the waveform pad 16 is turned into the controller 17 to adjust the gap, the second bearing 15 is installed in the bearing chamber of the controller 17, and the motor front cover 7 and the controller 17 are installed in the motor housing 9 and fixed. After the lower air guide sleeve 5 is fastened with the motor shell 9, the impeller 3 is matched with the shaft 11 through a hole, the impeller 3 and the shaft 11 are locked by the locking nut 10, the air guide sleeve 18 and the upper air guide sleeve 2 are fixed with the lower air guide sleeve 5 through bolts 6 after the clearance between the air guide sleeve and the upper air guide sleeve is adjusted by the adjusting column 4, and the outer surface of the controller 17 is assembled on the inner surface of the air guide sleeve 18 and can be fixed through bolts.
The motor shell 9 of the fan is made of aluminum and is arranged in the air duct, the aluminum is fast in heat conduction, the impeller 3 rotates at a high speed to drive a large amount of air flow to pass through the surface of the motor shell 9, heat generated by the motor is taken away, and the surface temperature of the motor is not higher than 80 ℃. The first bearing 8 and the second bearing 15 of the fan are designed by special low-temperature lubricating grease, and can be normally started at the temperature of-70 ℃, so that the fan can adapt to high-altitude low-temperature environments and the service life of the fan is prolonged.
Examples
Under the precondition of unchanged condition, the air guide sleeve 18 of the fan adopts an ellipsoidal design, and the impeller 3 and the air guide sleeve 18 adopt an included angle of 25 degrees, so that the performance of the impeller 3 is better.
Examples
The air guide sleeve 18 of the fan adopts an ellipsoidal design, and the impeller 3 and the air guide sleeve 18 adopt a 32-degree included angle design, so that the wind pressure and the wind quantity of the fan are larger, and the noise is lower.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the utility model in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the utility model.
Claims (6)
1. A mixed current direct current fan for on near space airship, its characterized in that: the motor comprises a rotor assembly, a stator assembly, an impeller assembly, an adjusting column, a bolt, a motor front cover, a locking nut and a waveform pad; the rotor assembly comprises a first bearing, a shaft, a rotor core, magnetic steel and a second bearing, the stator assembly comprises a motor shell and a stator core, the impeller assembly comprises a guide cover, an upper guide cover, an impeller, a lower guide cover, a controller and a guide cover, the rotor core is formed by processing medium carbon steel and is in interference fit with the shaft, the shaft is pressed into the rotor core by an air compressor during assembly, glue is fully coated on the inner surface of the magnetic steel and attached to the outer surface of the rotor core, the first bearing and the second bearing are respectively mounted at two ends of the shaft and the end faces are flush with the shaft, the stator core is formed by laminating and riveting a plurality of silicon steel sheets, an enameled wire is embedded inside the stator core and is thermally sleeved inside the motor shell, the rotor assembly is rotated in the stator assembly through rotation, the motor shell is made of aluminum materials, and the first bearing and the second bearing are coated with low-temperature lubricating grease.
2. The hybrid dc fan for use on an adjacent space airship of claim 1, wherein the motor front cover is provided with a bearing compartment, the first bearing is mounted in the bearing compartment, the wave pad is rotatably mounted in the controller, and the second bearing is mounted in the controller.
3. The mixed-flow direct-current fan for an airship in the near space according to claim 2, wherein the motor front cover and the controller are both installed inside the motor housing and fixedly connected, and the lower guide cover is fixedly connected with the motor housing.
4. A mixed flow dc fan for use on an airship in proximity to claim 3 wherein the shaft has a shaft bore and the impeller is coupled to the shaft by a shaft bore and is locked to the shaft by a locking nut.
5. The mixed-flow direct current fan for use on an airship in proximity to claim 4, wherein the upper pod and the lower pod are connected by an adjusting post and then are fixed by bolts, and a controller is installed in the pod.
6. A mixed flow direct current fan for use on an airship according to any of claims 1-5, wherein the pod is of ellipsoidal design, and the impeller and pod form an included angle of 25 ° to 32 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321456022.XU CN220081711U (en) | 2023-06-08 | 2023-06-08 | Mixed-flow direct-current fan used on airship in near space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321456022.XU CN220081711U (en) | 2023-06-08 | 2023-06-08 | Mixed-flow direct-current fan used on airship in near space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220081711U true CN220081711U (en) | 2023-11-24 |
Family
ID=88827754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321456022.XU Active CN220081711U (en) | 2023-06-08 | 2023-06-08 | Mixed-flow direct-current fan used on airship in near space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220081711U (en) |
-
2023
- 2023-06-08 CN CN202321456022.XU patent/CN220081711U/en active Active
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