CN114013420B - Bearing-free vector spray pipe driving device - Google Patents
Bearing-free vector spray pipe driving device Download PDFInfo
- Publication number
- CN114013420B CN114013420B CN202111141248.6A CN202111141248A CN114013420B CN 114013420 B CN114013420 B CN 114013420B CN 202111141248 A CN202111141248 A CN 202111141248A CN 114013420 B CN114013420 B CN 114013420B
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- Prior art keywords
- ring
- fixed base
- connecting ring
- bearingless
- ring connecting
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60V—AIR-CUSHION VEHICLES
- B60V1/00—Air-cushion
- B60V1/14—Propulsion; Control thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Nozzles (AREA)
Abstract
The invention relates to a bearingless vector spray pipe driving device which comprises a fixed base and a rotating ring, wherein the fixed base and the rotating ring are combined to form a closed annular cavity, a stop block is arranged on the rotating ring to divide the annular cavity into 2 parts, and an inlet and an outlet of a fluid medium are arranged on the fixed base. The fluid medium is injected into the annular cavity at one side through the inlet and pushes the stop block to move together with the rotating ring, so that the vector spray pipe arranged on the rotating ring is driven to rotate. Compared with the prior art, the bearingless vector spray pipe driving device provided by the invention has the advantages that the connecting bearing is eliminated, the device structure is simplified, the weight and the size of the device are reduced, and the corrosion of the marine environment is avoided.
Description
Technical Field
The invention relates to a vector nozzle device of a hovercraft, in particular to a vector nozzle driving device without a bearing.
Background
The hovercraft can be provided with a vectoring nozzle at the bow to improve the low-speed maneuvering and the crosswind resistance of the craft, the vectoring nozzle needs to rotate to a designated angle according to the operation intention and jet outwards to provide side thrust to realize the steering and the crosswind resistance of the hovercraft, and a driving device is needed to drive the rotation of the vectoring nozzle.
The small-sized vectoring nozzle is connected with the ship body through a rotating bearing, and the outside of the small-sized vectoring nozzle is driven to rotate through gears, belts or the like. When the size of the vectoring nozzle is increased to a certain degree, the size and the weight of the connecting bearing are greatly increased, meanwhile, the vectoring nozzle operates in a high-speed water-vapor mixing flushing environment, the sealing reliability of a large-size rotating mechanism is poor, and the bearing steel has a large corrosion risk after long-term use on the sea.
Accordingly, it is desirable to invent a bearingless vectoring nozzle drive to eliminate the need for connecting bearings and to achieve actuation of the vectoring nozzle.
Disclosure of Invention
In view of the above-mentioned technical problems, the present invention provides a bearingless vectoring nozzle driving device, which realizes the rotation driving of the vectoring nozzle by externally connecting a fluid medium.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a bearingless vector spray tube drive arrangement, includes unable adjustment base, swivel ring, unable adjustment base and swivel ring combination form closed annular cavity, set up the dog on the swivel ring, divide into 2 parts with annular cavity, be provided with the entry and the export of fluidic medium on the unable adjustment base.
Further, after the fluid medium is injected into the annular cavity at one side through the inlet, the stop block is pushed to move together with the rotating ring, so that the vector spray pipe arranged on the rotating ring is driven to rotate.
Further, the fixed base and the rotating ring are connected through the outer ring connecting ring 3 and the inner ring connecting ring 4 to form a stable closed cavity capable of bearing aerodynamic force of the spray pipe, pressure of fluid medium in the cavity and external load on the ship.
Further, the outer ring connecting ring and the inner ring connecting ring are respectively connected at the outer side of the top and the inner side of the bottom of the connection of the fixed base and the rotating ring.
Further, the outer ring connecting ring and the inner ring connecting ring are used for reliably connecting the fixed base and the rotating ring along the circumferential direction.
Further, the outer ring connecting ring and the inner ring connecting ring are used for completely buckling the rotating ring on the fixed base in a bayonet mode respectively.
Further, a guide limit groove is formed in the fixed base and is connected with the rotating ring in a matched mode, so that the rotating ring can slide in the guide limit groove to limit radial movement.
Further, the top and the bottom of the fixed base are respectively provided with a joint protruding out of the wall surface, and the joints are intermittent protrusions.
Further, the joints of the outer ring connecting ring and the inner ring connecting ring and the fixed base are provided with corresponding intermittent joints.
Further, when in assembly, the intermittent joint of the outer ring connecting ring downwards passes through a gap between joints of the fixed base, and then the outer ring connecting ring is rotated to enable the fixed base and the intermittent joint of the outer ring connecting ring which is convex to be clamped together; similarly, the intermittent joint of the inner ring connecting ring downwards passes through a gap between joints of the fixed base, and then the inner ring connecting ring is rotated to enable the intermittent joints of the fixed base and the protrusions of the inner ring connecting ring to be clamped together; and (5) completing the assembly of the outer ring connecting ring and the inner ring connecting ring.
The beneficial effects of the invention are as follows:
compared with the prior art, the bearingless vector spray pipe driving device provided by the invention has the advantages that the connecting bearing is eliminated, the device structure is simplified, the weight and the size of the device are reduced, and the corrosion of the marine environment is avoided.
Drawings
FIG. 1 is a front cross-sectional view of the structure of the bearingless vectoring nozzle drive apparatus of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at I;
FIG. 4 is a typical cross-sectional view of a bearingless vectoring nozzle drive apparatus of the present invention;
fig. 5 is a schematic diagram of the connection between the rotating ring and the stationary base.
Detailed Description
Embodiments of the present invention will be specifically explained below with reference to the drawings.
As shown in fig. 1 to 5, the bearingless vectoring nozzle driving device of the present invention mainly comprises a fixed base 1, a rotating ring 2, an outer ring connecting ring 3 and an inner ring connecting ring 4.
As shown in fig. 1,2 and 3, the fixed base 1 and the rotating ring 2 are combined to form a closed annular cavity, the rotating ring 2 is provided with a stop block 5 to divide the annular cavity into 2 parts, the fixed base 1 is provided with an inlet and an outlet for fluid medium, and the fluid medium can push the stop block 5 to move together with the rotating ring 2 after being injected into the annular cavity on one side through the inlet so as to drive the vector spray pipe 7 to rotate. After the nozzle 7 is rotated into place, the injection of the fluid medium is stopped, and the rotation is stopped.
The vector nozzle driving device needs to ensure that the fixed base 1 and the rotating ring 2 form a stable closed cavity, needs to bear external loads such as aerodynamic force of a nozzle and inertial acceleration on a ship, needs to bear pressure of fluid medium in the cavity, and needs to avoid leakage of the cavity in the rotating process, so that the fixed base 1 and the rotating ring 2 need to be reliably connected in the circumferential direction through the outer ring connecting ring 3 and the inner ring connecting ring 4. As shown in fig. 4, the outer ring connecting ring 3 and the inner ring connecting ring 4 are shown to completely fasten the rotating ring 2 on the fixed base 1 in a bayonet form, and meanwhile, a guiding and limiting groove 6 is provided on the fixed base 1, and the rotating ring 2 can slide in the guiding and limiting groove 6 and limit radial movement. Through the multiple limiting, the annular cavity can be completely closed under the external load and the pressure in the cavity.
In view of the fact that all the components of the device are of annular structures, the assembly problem of the outer ring connecting ring 3 and the inner ring connecting ring 4 needs to be solved. Fig. 5 shows a fitting solution for the connecting ring. The joint on the fixed base 1 protrudes outside the wall surface, and the joint is designed to be a discontinuous protrusion, and the joint of the outer ring connecting ring 3 is also designed to be a discontinuous joint. When the assembly is carried out, firstly, the intermittent joint of the outer ring connecting ring 3 can downwards pass through the gap between the joints of the fixed base 1, then the outer ring connecting ring 3 is rotated, and the joints with the two protrusions are clamped together. The principle of the inner ring connecting ring is the same. Thus, the outer ring connecting ring 3 and the inner ring connecting ring 4 can be assembled.
The above detailed description of the specific embodiments of the invention is given by way of example only, and the invention is not limited to the specific embodiments described above, but any equivalent modifications and substitutions for those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications are intended to be included within the scope of the present invention without departing from the spirit and scope thereof. The scope of the invention is defined by the appended claims and equivalents.
Claims (8)
1. A bearingless vectoring nozzle drive comprising: the rotary ring is provided with a stop block to divide the annular cavity into 2 parts, and the fixed base is provided with an inlet and an outlet for fluid medium; the fluid medium is injected into the annular cavity at one side through the inlet and then pushes the stop block to move together with the rotating ring, so that the vector spray pipe arranged on the rotating ring is driven to rotate; the fixed base is connected with the rotating ring through the outer ring connecting ring and the inner ring connecting ring to form a stable closed cavity capable of bearing aerodynamic force of the spray pipe, pressure of fluid medium in the cavity and external load on the ship.
2. The bearingless vectoring nozzle drive apparatus of claim 1 wherein: the outer ring connecting ring and the inner ring connecting ring are respectively connected with the outer side of the top and the inner side of the bottom of the connection of the fixed base and the rotating ring.
3. The bearingless vectoring nozzle drive apparatus of claim 2 wherein: the outer ring connecting ring and the inner ring connecting ring are used for reliably connecting the fixed base and the rotating ring along the circumferential direction.
4. The bearingless vectoring nozzle drive apparatus of claim 2 wherein: the outer ring connecting ring and the inner ring connecting ring are used for completely buckling the rotating ring on the fixed base in a bayonet mode respectively.
5. The bearingless vectoring nozzle drive apparatus of claim 1 wherein: the fixed base is provided with a guide limit groove, and the guide limit groove is connected with the rotating ring in a matched manner, so that the rotating ring can slide in the guide limit groove to limit radial movement.
6. The bearingless vectoring nozzle drive apparatus of claim 5 wherein: the top and the bottom of the fixed base are respectively provided with a joint protruding out of the wall surface, and the joints are intermittent protrusions.
7. The bearingless vectoring nozzle drive apparatus of claim 6 wherein: the joint of the outer ring connecting ring and the inner ring connecting ring and the fixed base is provided with a corresponding intermittent joint.
8. The bearingless vectoring nozzle drive apparatus of claim 7 wherein: when the outer ring connecting ring is assembled, the intermittent connector of the outer ring connecting ring downwards passes through a gap between connectors of the fixed base, and then the outer ring connecting ring is rotated to enable the fixed base and the intermittent connector of the outer ring connecting ring which is convex to be clamped together; similarly, the intermittent joint of the inner ring connecting ring downwards passes through a gap between joints of the fixed base, and then the inner ring connecting ring is rotated to enable the intermittent joints of the fixed base and the protrusions of the inner ring connecting ring to be clamped together; and (5) completing the assembly of the outer ring connecting ring and the inner ring connecting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111141248.6A CN114013420B (en) | 2021-09-28 | 2021-09-28 | Bearing-free vector spray pipe driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111141248.6A CN114013420B (en) | 2021-09-28 | 2021-09-28 | Bearing-free vector spray pipe driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114013420A CN114013420A (en) | 2022-02-08 |
| CN114013420B true CN114013420B (en) | 2023-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111141248.6A Active CN114013420B (en) | 2021-09-28 | 2021-09-28 | Bearing-free vector spray pipe driving device |
Country Status (1)
| Country | Link |
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| CN (1) | CN114013420B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5765499A (en) * | 1995-09-20 | 1998-06-16 | Mckenzie; Marvin Ray | Hydro-thrust canoe |
| JP2008008185A (en) * | 2006-06-28 | 2008-01-17 | Nidec Shibaura Corp | Pump |
| CN101586474A (en) * | 2009-04-20 | 2009-11-25 | 周华 | Vane type continuous rotating cylinder |
| KR20100122551A (en) * | 2009-05-13 | 2010-11-23 | 김종만 | Propulsion device for a sheep |
| CN110641695B (en) * | 2019-09-20 | 2022-03-18 | 南京航空航天大学 | Power system suitable for small vertical take-off and landing fixed wing aircraft |
| CN112319824A (en) * | 2020-11-06 | 2021-02-05 | 范存璐 | Control method of jet unmanned aerial vehicle |
| CN112325319A (en) * | 2020-11-25 | 2021-02-05 | 胡建廷 | Variable vector spray pipe soot blower |
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2021
- 2021-09-28 CN CN202111141248.6A patent/CN114013420B/en active Active
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| Publication number | Publication date |
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| CN114013420A (en) | 2022-02-08 |
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