CN114313182A - Pod propulsion device with tetrahedral structure - Google Patents
Pod propulsion device with tetrahedral structure Download PDFInfo
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- CN114313182A CN114313182A CN202210001305.9A CN202210001305A CN114313182A CN 114313182 A CN114313182 A CN 114313182A CN 202210001305 A CN202210001305 A CN 202210001305A CN 114313182 A CN114313182 A CN 114313182A
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- connecting structure
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- tail
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- 238000013461 design Methods 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000013585 weight reducing agent Substances 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 241000380131 Ammophila arenaria Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 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
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Abstract
The invention discloses a propulsion device of a tetrahedral pod, which adopts a modular structure type to integrally design and assemble a propulsion motor and a rotary support structure, wherein a head module connecting structure A and a head module connecting structure B of a head module, a tail module connecting structure and a shell of a propulsion module form a tetrahedral structure support frame, so that the structural stability and torsional strength of a propeller can be enhanced while the weight of the propeller is reduced. The nacelle propulsion device provided by the invention has better performance in the aspects of resistance reduction, weight reduction, structural stability, torsional strength and the like, and compared with the traditional nacelle propeller, the nacelle propulsion device can reduce the weight of the propeller and enhance the structural stability and torsional strength of the propeller.
Description
Technical Field
The invention belongs to the technical field of marine propelling devices, and particularly relates to a marine tetrahedral pod propelling device.
Background
The pod propulsion device is a novel marine propulsion device and realizes the integration of a full-rotation rudder propeller and a propulsion motor. The conventional pod propulsion device adopts a nested structure type of a propulsion motor, and is sleeved in a shell structure similar to a full-turning rudder propeller, and a bracket of the conventional pod propulsion device for the ship 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; the poor water circulation on the two sides of the bracket causes the large steering torque.
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, electromagnetic interference is caused, and the propelling and steering stability of the pod propeller is influenced; the "L" shaped stent has poor torsional strength. Conventional pod propulsion devices therefore have to be optimized with regard to propeller weight, propulsion performance, steering performance, structural stability, etc.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention proposes a pod propeller of tetrahedral support structure.
The technical scheme adopted by the invention for solving the technical problems is as follows: a propulsion device of a tetrahedral pod comprises a steering module, a head module, a tail module and a propulsion module, wherein the steering module, the head module and the tail module are respectively in modular design and can relatively independently complete testing and acceptance, the propulsion module is connected between the head module and the tail module, the head module and the steering module which mainly plays a role in fixed support and steering are respectively positioned at the vertex of a first triangle, the head module and the steering module are connected through a head module connecting structure A and a head module connecting structure B which are identical in structure, the head module connecting structure A and the head module connecting structure B are positioned on two edges of a second triangle, and a formed support frame is of a tetrahedral structure; the head module consists of a head module shell connected with the head module connecting structure A and the head module connecting structure B and a propeller arranged on the head module shell; the propulsion module consists of a propulsion module shell, a propulsion motor arranged in the propulsion module shell, and a circuit and a pipeline of the propulsion motor, wherein the propulsion motor is connected with the propeller, the front end of the propulsion module shell is connected with the head module shell, and the rear end of the propulsion module shell is connected with the tail module shell; the tail module is composed 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 surface and the rear end surface of the propulsion module extend out of the propulsion motor through the cabin penetrating sealing piece 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 pod propulsion device, the head module connecting structure A and the head module connecting structure B are of cylindrical structures and are symmetrically distributed on two sides, a bearing, a sealed lubricating oil pipeline and a signal line are led to the steering module on one side, and a propulsion motor power line is led to the steering module on the other side, so that strong current and weak current are separated to avoid electromagnetic interference.
According to the pod propulsion device with the tetrahedral structure, the included angles between the head module connecting structure A/the head module connecting structure B and the tail module connecting structure of the pod propulsion device and the propulsion module shell are recommended to be controlled between 30-60 degrees.
The propulsion module shell of the tetrahedral nacelle propulsion device is a revolving body, the head module shell and the tail module shell are streamline, and the line is smooth after the combination of the head module shell and the tail module shell.
According to the pod propulsion device with the tetrahedral structure, the shapes of the head module connecting structure A, the head module connecting structure B and the tail module connecting structure can be designed into a streamline shape according to the flow field characteristics so as to reduce the resistance.
The invention has the beneficial effects that:
the novel tetrahedral support frame is formed by the head module, the propulsion module, the tail module and the steering module which are designed in a modularized way and can relatively independently complete testing and acceptance, so that the wet area of the shell can be reduced, the resistance of the shell is reduced, the water circulation of the two sides of the propeller is better, and the steering torque is reduced. The interior of the connecting structure can be designed into a cylindrical structure which can be maintained by people, and the appearance can be designed into a streamline shape according to the flow field characteristics so as to reduce the resistance.
The invention provides a pod propeller with a novel support frame, which has better performances in the aspects of propelling performance, propeller weight, structural stability, torsional strength and the like.
The high-power pod propulsion device provided by the invention has great improvement on the aspects of propeller weight, propulsion performance, steering performance, cabin entering maintenance and the like. The device has better performance in the aspects of drag reduction, weight reduction, steering and the like, and can also solve the problem of cabin entry maintenance of large-scale nacelle.
Drawings
FIG. 1 is a schematic view 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 view of a propulsion module of the present invention;
FIG. 4 is a schematic view 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 figures are numbered: 1-head module, 1-head module connecting structure A, 1-2-head module connecting structure B, 1-3-propeller, 1-4-head module shell, 2-propulsion module, 2-1-propulsion motor, 2-line and pipeline, 2-3-propulsion module shell, P-motor driving shaft, 3-tail module, 3-1-tail module connecting structure, 3-2-tail module shell, 4-steering module, PL-mounting plane and SG-sealing groove.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the various components in the drawings are drawn to a particular scale, these scaling relationships are exemplary only, 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" etc. indicate directions or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation or be operated, and thus, should not be construed as limiting the invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be connected internally or indirectly to each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, the invention discloses a tetrahedral nacelle propelling device, which comprises a head module 1), a propelling module 2, a tail module 3 and a steering module 4. The components or modules can be relatively independent to complete the test and acceptance of the functionality, and the modular structure makes the installation and maintenance of the nacelle propulsion device more convenient. The tail module 3, the head module 1 and the steering module 4 which mainly plays roles of fixed support and steering are respectively positioned on the vertex of the first triangle, and the head module 1 and the steering module 4 are connected through the connecting structures with the same structure and the number not less than 2: the head module connecting structure A1-1 and the head module connecting structure B1-2 are connected, the head module connecting structure A1-1 and the head module connecting structure B1-2 are positioned on two edges of the second triangle, and a formed supporting frame is of a tetrahedral structure.
As shown in fig. 2, the header module 1 includes a header module connection structure A1-1, a header module connection structure B1-2, a propeller 1-3, and a header module housing 1-4. The propeller 1-3 is connected with the propulsion motor 2-1, and the head module connecting structure A1-1 and the head module connecting structure B1-2 are connected with the steering module 4. In this embodiment, the number of connection structure is 2, and the symmetric distribution is in both sides, and the connection structure of one side can lead bearing and sealed lubricated oil pipe way and signal line to the helm steering module, and the connection structure of opposite side can lead propulsion motor power line to the helm steering module, realizes that forceful electric power and weak current separate in order to avoid electromagnetic interference. The included angle between the connecting structure and the horizontal direction is preferably controlled to be 30-60 degrees, but not limited to the included angle, and meanwhile, the appearance of the connecting structure is designed to be streamline to reduce resistance.
As shown in fig. 3, the propulsion module 2 includes a propulsion motor 2-1 with a motor driving shaft P, a line and pipe 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 lines and 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 and are respectively sealed with the head module 1 and the tail module 3.
As shown in fig. 4, the rear module 3 is composed of a connection structure 3-1 and a rear module housing 3-2. The connection structure 3-1 connects the tail module 3 and the rudder module 4. The interior of the connecting structure is designed into a cylindrical structure, and a bearing, a sealed 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 appearance so as to reduce resistance.
The support of the pod 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 support similar to a 'tetrahedron' frame with a propulsion module shell 2-3, so that the weight and the wet area of the support are reduced on the basis of ensuring the structural strength of the support, and the resistance is reduced; meanwhile, the structural stability and torsional strength of the propeller are enhanced.
The connection of the head module 1, the tail module 3 and the steering module 4 is similar to the flange of the "four-way structure" shown in fig. 5, and the matching surfaces are sealed by O-rings. In order to ensure the coaxiality of the rotating parts and the sealing effect of the related parts, the assembly sequence is proposed as follows: the method comprises the steps of firstly assembling a head module 1 and a propulsion module 2, then assembling a tail module 3 and the propulsion module 2, then processing the matching surface of a four-way structure, and finally assembling the head module 1, the tail module 3 and a steering module 4. In the figure, PL is a mounting plane and SG is a sealing groove.
Other examples are as follows: in contrast to the above-described exemplary embodiments, the connection structure of the head module or the tail module can also be arranged directly on the propulsion module 2; the number of connection structures of the header module may be 3, 4 or more; the connecting structure of the header module can only serve as a fixed structure to enhance the stability of the structure; the connection mode of the head module, the tail module and the rotation module can adopt other connection modes.
The above-described embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be applied, and it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the inventive concept of the present invention, and these embodiments are within the scope of the present invention.
Claims (5)
1. A tetrahedral nacelle propulsion device, characterized in that: the steering device comprises a steering module (4) which is in modular 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 plays a role of fixed support and steering are respectively positioned on the vertex 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 have the same structure, and the head module connecting structure A (1-1) and the head module connecting structure B (1-2) are positioned on two edges of the triangle; the head module (1) consists of a head module shell (1-4) connected with a head module connecting structure A (1-1) and a head module connecting structure B (1-2) and a propeller (1-3) arranged on the head 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 of the propulsion motor and a pipeline (2-2), and the propulsion motor (2-1) is connected with the propeller (1-3); the tail module (3) is composed 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 a 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 nacelle propulsion device according to claim 1, characterized in that the header module connection structure a (1-1) and the header module connection structure B (1-2) are both cylindrical structures and are symmetrically distributed on both sides.
3. A tetrahedral nacelle propulsion device according to claim 2, characterized in that the angle between the nose module connection structure a (1-1)/the nose module connection structure B (1-2) and the tail module connection structure (3-1) and the propulsion module casing (2-3) is 30 ° to 60 °.
4. A tetrahedron structured pod propulsion device according to claim 2, characterized in that the propulsion module housings (2-3) are bodies of revolution, the leading module housing (1-4) and the trailing module housing (3-2) being streamlined.
5. A tetrahedral nacelle propulsion device according to claim 2, characterized in that the leading module connection structure a (1-1), the leading module connection structure B (1-2) and the trailing module connection structure (3-1) are streamlined.
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 true CN114313182A (en) | 2022-04-12 |
| CN114313182B 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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Inventor after: Yang Yifan Inventor after: Huang Zhenhua Inventor after: Chen Lian Inventor after: Xiao Yang Inventor after: Song Shuang Inventor before: Yang Yifan Inventor before: Huang Zhenhua Inventor before: Chen Lian |
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