CN114313182B - Tetrahedral structure nacelle advancing device - Google Patents
Tetrahedral structure nacelle advancing device Download PDFInfo
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- CN114313182B CN114313182B CN202210001305.9A CN202210001305A CN114313182B CN 114313182 B CN114313182 B CN 114313182B CN 202210001305 A CN202210001305 A CN 202210001305A CN 114313182 B CN114313182 B CN 114313182B
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- 238000007789 sealing Methods 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000013585 weight reducing agent Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Abstract
The invention discloses a tetrahedral structure nacelle propulsion device, which adopts a modularized structure type to integrate and assemble a propulsion motor and a rotary supporting structure, wherein a connection structure A of a head module, a connection structure B of the head module, a connection structure of a tail module and a shell of a propulsion module form a tetrahedral structure supporting frame, so that the structural stability and torsional strength of the propulsion device can be enhanced while the weight of the propulsion device is reduced. Compared with the traditional pod propeller, the pod propulsion device provided by the invention has better performances in aspects of drag reduction, weight reduction, structural stability, torsional strength and the like, and can reduce the weight of the propeller and simultaneously enhance the structural stability and the torsional strength of the propeller.
Description
Technical Field
The invention belongs to the technical field of marine propulsion devices, and particularly relates to a marine tetrahedron structure nacelle propulsion device.
Background
The nacelle propulsion device is a novel marine propulsion device, and realizes the integration of the full-rotation rudder propeller and the propulsion motor. The conventional pod propulsion device adopts a nested structure type to enable a propulsion motor to be sleeved into a shell structure similar to a full-rotation rudder propeller, and a bracket of the conventional marine pod propulsion device is generally in a T shape or an L shape.
The "T" shaped stent has the following disadvantages: the weight of the bracket is large; the large wet area of the stent results in greater resistance; poor circulation of water on both sides of the bracket causes a large steering moment.
The "L" shaped stent has the following disadvantages: in order to ensure that the bracket has enough strength and rigidity, the L-shaped bracket connecting structure has larger size; the signal cable and the power cable are led to the steering module through the same channel, so that electromagnetic interference is generated, and the propulsion and steering stability of the pod propeller are affected; the "L" shaped stent has poor torsional strength. Therefore, the conventional pod propulsion device needs to be optimized in terms of the weight of the propeller, the propulsion performance, the steering performance, the structural stability and the like.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a pod propeller with a tetrahedral bracket structure.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a tetrahedron structure nacelle advancing device, includes all adopts the modularization design and can accomplish the steering module of test and acceptance relatively independently, connects head module and afterbody module and the propulsion module of connection between head module and afterbody module respectively of steering module, head module and mainly play fixed support and steering action the steering module be located the summit of first triangle respectively, head module and steering module connect through the same head module connection structure A and head module connection structure B, head module connection structure A and head module connection structure B be located two edges of second triangle, the braced frame that forms is "tetrahedron" structure; the header module consists of a header module shell connected with the header module connecting structure A and the header module connecting structure B and a propeller arranged on the header module shell; the propulsion module consists of a propulsion module shell, a propulsion motor arranged in the propulsion module shell, a circuit and a pipeline thereof, wherein the propulsion motor is connected with the propeller, the front end of the propulsion module shell is connected with the front module shell, and the rear end of the propulsion module shell is connected with the rear module shell; the tail module consists of a tail module connecting structure forming one side of the first triangle and a tail module shell forming the vertex of the first triangle, the propulsion module shell is respectively connected with the head module shell and the tail module shell, and lines and pipelines distributed on the front end face and the rear end face of the propulsion module extend out of the propulsion motor through cabin penetrating sealing pieces and are respectively transferred to the steering module through the head module connecting structure A, the head module connecting structure B and the tail module connecting structure.
According to the tetrahedron structure nacelle propulsion device, the header module connecting structure A and the header module connecting structure B are of cylindrical structures and are symmetrically distributed on two sides, one side of the tetrahedron structure nacelle propulsion device guides a bearing, a sealed lubricating oil pipeline and a signal line to a steering module, and the other side guides a propulsion motor power line to the steering module, so that strong current and weak current are separated, and electromagnetic interference is avoided.
According to the tetrahedral structure nacelle propelling device, the included angles between the head module connecting structure A/the head module connecting structure B and the tail module connecting structure and the propelling module shell are recommended to be controlled between 30 degrees and 60 degrees.
The propulsion module shell of the tetrahedron structure nacelle propulsion device is a revolution body, the head module shell and the tail module shell are streamline, and the molded lines are smooth after the head module shell and the tail module shell are combined.
The appearance of the head module connecting structure A, the head module connecting structure B and the tail module connecting structure of the tetrahedral structure nacelle propelling device can be designed into streamline form according to the flow field characteristics so as to reduce resistance.
The beneficial effects of the invention are as follows:
according to the invention, the head module, the propulsion module, the tail module and the steering module shell which are in modularized design and can be used for relatively and independently completing testing and acceptance form a novel tetrahedron support frame, so that on one hand, the wet area of the shell can be reduced, the resistance of the shell is reduced, and on the other hand, the water on two sides of the propeller can be better in fluxion, and the steering moment is reduced. The interior of the connection structure may be designed as a human accessible repair cylinder and the exterior may be designed as a streamline to reduce drag depending on the flow field characteristics.
The invention provides a novel nacelle propeller with a supporting frame, which has better performance in the aspects of propulsion performance, propeller weight, structural stability, torsional strength and the like.
The high-power pod propulsion device provided by the invention has great improvement in the aspects of propeller weight, propulsion performance, steering performance, cabin entering maintenance and the like. The performance is better in aspects of drag reduction, weight reduction, steering and the like, and meanwhile, the problem of cabin entering maintenance of the large nacelle can be solved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a header module of the present invention;
FIG. 3 is a schematic diagram of a propulsion module according to the present invention;
FIG. 4 is a schematic diagram of a tail module of the present invention;
FIG. 5 is a schematic view of a flange of the "four-way construction" of the present invention;
FIG. 6 is a top view of the pod propulsion device of the present invention;
fig. 7 is a left side view of the pod propulsion device of the present invention.
The reference numerals are as follows: 1-head module, 1-head module connection structure A, 1-2-head module connection structure B, 1-3-propeller, 1-4-head module housing, 2-propulsion module, 2-1-propulsion motor, 2-line and pipeline, 2-3-propulsion module housing, P-motor drive shaft, 3-tail module, 3-1-tail module connection structure, 3-2-tail module housing, 4-steering module, PL-installation plane, SG-sealing groove.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. For example, although the various components in the figures are drawn to a particular scale, these scale relationships are merely exemplary and may be adjusted as needed by one skilled in the art to suit a particular application.
It should be noted that, in the description of the present invention, the terms "head", "tail", and "middle" indicate directions or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured or operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be connected inside two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
As shown in fig. 1, the invention discloses a tetrahedral nacelle propulsion device, which comprises a head module 1, a propulsion module 2, a tail module 3 and a steering module 4. Each component or module can relatively independently complete functional test and acceptance, and the modularized structural form facilitates the installation and maintenance of the nacelle propulsion device. The tail module 3, the head module 1 and the steering module 4 which mainly play roles in fixing, supporting and steering are respectively positioned on the top points of the first triangle, and the head module 1 and the steering module 4 are connected with each other through connecting structures with the same number not lower than 2: the header module connecting structure A1-1 and the header module connecting structure B1-2 are connected, the header module connecting structure A1-1 and the header module connecting structure B1-2 are positioned on two sides of the second triangle, and the formed supporting frame is of a tetrahedron structure.
As shown in FIG. 2, header module 1 includes header module connection structure A1-1, header module connection structure B1-2, propeller 1-3, and header module housing 1-4. The propeller 1-3 is connected with the propulsion motor 2-1, and the header module connecting structure A1-1 and the header module connecting structure B1-2 are connected with the steering module 4. In this embodiment, the quantity of connection structure is 2, and the symmetric distribution is in both sides, and the connection structure of one side can be with bearing and sealed lubrication oil pipeline and signal line lead to the steering module, and the connection structure of opposite side can be with propulsion motor power line lead to the steering module, realizes strong current and weak current separation in order to avoid electromagnetic interference. The included angle between the connecting structure and the horizontal direction is preferably controlled between 30-60 degrees, but is not limited to the angle, and the connecting structure is designed to be streamline in shape so as to reduce resistance.
As shown in fig. 3, the propulsion module 2 comprises a propulsion motor 2-1 with a motor drive shaft P, a circuit and pipeline 2-2, and a propulsion module housing 2-3. The front end of the propulsion module shell 2-3 is connected with the head module shell 1-4, the rear end of the propulsion module shell is connected with the tail module shell 3-2, and the circuits and the pipelines 2-2 distributed on the front end face and the rear end face of the propulsion module 2 extend out through special cabin penetrating sealing pieces to respectively realize end face sealing with the head module 1 and the tail module 3.
As shown in fig. 4, the tail module 3 is composed of a connection structure 3-1 and a tail module housing 3-2. The connection structure 3-1 connects the tail module 3 and the steering module 4. The inside of the connecting structure is designed into a cylindrical structure, and a bearing, a sealing lubrication pipeline and a signal cable in the propulsion module 2 are transferred to the steering module 4 from the connecting structure 3-1; the connecting structure is designed to be streamline in shape so as to reduce resistance.
The bracket of the nacelle propulsion device consists of a head module connecting structure A1-1, a head module connecting structure B1-2 and a tail module connecting structure 3-1 of a head module 1, and forms a bracket similar to a tetrahedron frame with a propulsion module shell 2-3, so that the weight and the wet area of the bracket are reduced on the basis of ensuring the structural strength of the bracket, and the resistance is reduced; while enhancing the structural stability and torsional strength of the propeller.
The connection of the header module 1, the tail module 3 and the rudder module 4 is similar to the flange of the "four-way structure" shown in fig. 5, and the mating surfaces are sealed with O-rings. In order to ensure the coaxiality of the rotating parts and the sealing effect of the related parts, the assembly sequence is suggested as follows: the method comprises the steps of firstly assembling a head module 1 with a propulsion module 2, then assembling a tail module 3 with the propulsion module 2, then processing the matching surface of a four-way structure, and finally assembling the head module 1 with the tail module 3 and a steering module 4. PL is the mounting plane in the figure, SG is the sealing groove.
Other embodiments: unlike the embodiments described above, the connection of the head module or the tail module can also be arranged directly on propulsion module 2; the number of connection structures for the header module may be 3, 4, or more; the connection structure of the header module can be used as a fixed structure only to enhance the stability of the structure; the connection modes of the head module, the tail module and the rotary module can adopt other connection modes.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and some practical embodiments, and variations and modifications may be made by those skilled in the art without departing from the inventive concept, which are all within the scope of the present invention.
Claims (5)
1. A tetrahedral pod propulsion device, characterized by: the steering system comprises a steering module (4) with a modularized design, a head module (1) and a tail module (3) which are respectively connected with the steering module (4) and a propulsion module (2) which is connected between the head module (1) and the tail module (3), wherein the tail module (3), the head module (1) and the steering module (4) which play roles of fixing, supporting and steering are respectively positioned on the top of a triangle, the head module (1) and the steering module (4) are connected through a head module connecting structure A (1-1) and a head module connecting structure B (1-2) which are the same in structure, and the head module connecting structure A (1-1) and the head module connecting structure B (1-2) are positioned on two sides of the triangle; the header module (1) consists of a header module shell (1-4) connected with the header module connecting structure A (1-1) and the header module connecting structure B (1-2) and a propeller (1-3) arranged on the header module shell (1-4); the propulsion module (2) consists of a propulsion module shell (2-3), a propulsion motor (2-1) arranged in the propulsion module shell (2-3), a circuit and a pipeline (2-2) of the propulsion motor, and the propulsion motor (2-1) is connected with the propeller (1-3); the tail module (3) consists of a tail module connecting structure (3-1) forming one side of a triangle and a tail module shell (3-2) forming the vertex of the triangle, the propulsion module shell (2-3) is respectively connected with the head module shell (1-4) and the tail module shell (3-2), and the line and the pipeline (2-2) extend out of the propulsion motor (2-1) through the cabin penetrating sealing piece and are respectively transferred to the steering module (4) through the head module connecting structure A (1-1), the head module connecting structure B (1-2) and the tail module connecting structure (3-1).
2. A tetrahedral pod propulsion device according to claim 1, wherein the header module connection structures a (1-1) and B (1-2) are both cylindrical structures and symmetrically distributed on both sides.
3. A tetrahedral pod propulsion device according to claim 2, wherein the angle between the front module connection a (1-1)/the front module connection B (1-2) and the rear module connection (3-1) and the propulsion module housing (2-3) is between 30 ° and 60 °.
4. A tetrahedral pod propulsion device according to claim 2, wherein the propulsion module housing (2-3) is a body of revolution and the head module housing (1-4) and the tail module housing (3-2) are streamlined.
5. A tetrahedral pod propulsion device according to claim 2, wherein the header module connection a (1-1), the header module connection B (1-2) and the tail module connection (3-1) are streamlined in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210001305.9A CN114313182B (en) | 2022-01-05 | 2022-01-05 | Tetrahedral structure nacelle advancing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210001305.9A CN114313182B (en) | 2022-01-05 | 2022-01-05 | Tetrahedral structure nacelle advancing device |
Publications (2)
| Publication Number | Publication Date |
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| CN114313182A CN114313182A (en) | 2022-04-12 |
| CN114313182B true CN114313182B (en) | 2024-04-02 |
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| CN202210001305.9A Active CN114313182B (en) | 2022-01-05 | 2022-01-05 | Tetrahedral structure nacelle advancing device |
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| DE2539811A1 (en) * | 1974-02-13 | 1977-03-10 | Gerhard Vester | Reaction propulsion system for ships - has thermal turbine engines using external pods submerged or above water |
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