CN210942202U - Underwater propelling device - Google Patents
Underwater propelling device Download PDFInfo
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- CN210942202U CN210942202U CN201921387832.8U CN201921387832U CN210942202U CN 210942202 U CN210942202 U CN 210942202U CN 201921387832 U CN201921387832 U CN 201921387832U CN 210942202 U CN210942202 U CN 210942202U
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Abstract
The utility model provides a advancing device under water, include: a barrel; the cavity cylinder is fixedly arranged in the cylinder, and a flow channel is defined by the outer side wall of the cavity cylinder and the inner wall of the cylinder; the driving device is fixedly arranged at the front end of the cavity cylinder; the driving paddle is fixedly arranged on a power output shaft of the driving device; the guide plates are formed by extending the outer side wall of the cavity cylinder to the cylinder in the radial direction of the cavity cylinder and are located on the rear side of the driving paddle, wherein the first guide part on the front side of the first guide plate gradually deviates to the deviation direction in the circumferential direction of the cavity cylinder from back to front, and the deviation direction is opposite to the rotating direction of the driving paddle. The utility model provides an underwater propulsion device, first water conservancy diversion portion can produce the effort opposite with water conservancy diversion paddle rotation direction to the fluid, can reduce the fluid from the underwater propulsor in the ascending speed component of barrel week after flowing out, improve propulsion efficiency. Meanwhile, the disturbance of water flow at the rear side of the underwater propeller is reduced, and the influence of the water flow disturbance on a user is reduced.
Description
Technical Field
The utility model relates to an underwater equipment technical field particularly, relates to an underwater propulsion device.
Background
The underwater vehicle is provided with a plurality of propellers, the axes of the propellers are parallel to each other, the axes of the propellers are parallel to the moving direction of the underwater vehicle, and the volume of the underwater vehicle is smaller.
When such products are used, the propeller of the propeller imparts a rotational velocity component to the water, which does not provide effective thrust to the propeller.
SUMMERY OF THE UTILITY MODEL
The present invention aims at least solving one of the technical problems existing in the prior art or the related art.
In view of this, the utility model aims at providing a advancing device under water.
In order to achieve the above object, the technical scheme of the utility model provides an underwater propulsion device, include: a barrel; the cavity cylinder is fixedly arranged in the cylinder, and a flow channel is defined by the outer side wall of the cavity cylinder and the inner wall of the cylinder; the driving device is fixedly arranged at the front end of the cavity cylinder; the driving paddle is fixedly arranged on a power output shaft of the driving device; the guide plates are formed by extending the outer side wall of the cavity cylinder to the cylinder in the radial direction of the cavity cylinder and are located on the rear side of the driving paddle, wherein the first guide part on the front side of each guide plate gradually deviates to the deviation direction in the circumferential direction of the cavity cylinder from back to front, and the deviation direction is opposite to the rotating direction of the driving paddle.
In this scheme, the first water conservancy diversion portion of guide plate front side upwards squints to the skew direction gradually in the circumference of cavity cylinder, and the skew direction is opposite with drive paddle pivoted direction, can reduce the fluid from the internal outflow of underwater propulsor back at barrel ascending velocity component in week, can improve propulsion efficiency.
When the driving paddle works, the driving paddle rotates, and through interaction between the driving paddle and fluid, the fluid forms forward acting force on the driving paddle so as to enable the underwater propeller to advance. After passing through the driving blades, water flows through a flow channel between the cylinder and the hollow cylinder and finally flows out of the underwater propeller from the rear side of the cylinder. After water flows through the driving paddle, the water flow has velocity components in the axis of the cylinder and the rotating direction of the driving paddle, the offset direction of the first flow guide part is opposite to the rotating direction of the driving paddle, and after the fluid flows through the first flow guide part, the first flow guide part can generate acting force opposite to the rotating direction of the flow guide paddle on the fluid, so that the velocity component of the fluid in the rotating direction of the driving paddle is reduced, further, the velocity component of the fluid in the circumferential direction of the cylinder after the fluid flows out of the underwater propeller can be reduced, and the propelling efficiency can be improved.
Further, when the underwater propulsor is a handheld propulsor, the velocity component of the fluid flowing out of the underwater propulsor in the circumferential direction of the cylinder is reduced, so that the disturbance of the water flow on the rear side of the underwater propulsor can be reduced, the influence of the water flow disturbance on a user is reduced, the difficulty of the user in underwater operation is reduced, and the underwater propulsor is better in usability.
In the above technical solution, preferably, the first flow guiding portion includes a first side surface and a second side surface, the first side surface and the second side surface are sequentially arranged in a direction in which the driving blade rotates, and a maximum bending angle of the first side surface ranges from 6.8 ° to 28.1 °.
In any of the above technical solutions, preferably, the driving paddle torsion angle is in an angle range of 60.9 to 76.6 °.
In any of the above technical solutions, preferably, the baffle further includes: the second flow guide part is fixedly arranged on the outer side wall of the cavity column body and correspondingly connected to the rear side of the first flow guide part, and the second flow guide part extends along the axis direction of the cavity column body.
In any of the above technical solutions, preferably, the second flow guiding portion is formed by extending the outer side wall of the cavity cylinder to the cylinder along the radial direction of the cavity cylinder.
In any one of the above technical solutions, preferably, the guide plate is fixedly connected to an inner wall of the cylinder.
In any of the above technical solutions, preferably, the method further includes: and the protective cover is fixedly arranged on the front side of the cylinder, and the fluid flows into the flow channel through the protective cover and the driving blades in sequence.
In any of the above technical solutions, preferably, the hollow cylinder is coaxially disposed with the cylinder.
In any one of the above technical solutions, preferably, the number of the baffles is 3 to 5.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
Fig. 1 is a side view of a partial structure of a submersible propulsion device according to one embodiment of the present invention;
fig. 2 is a front view of a partial structure of a submersible propulsion device according to one embodiment of the present invention;
fig. 3 is a side view of a partial structure of a submersible propulsion device according to one embodiment of the present invention;
fig. 4 is a front view of a partial structure of a submersible propulsion device according to one embodiment of the present invention;
fig. 5 is a cross-sectional view of a portion of the structure of a submersible propulsion device according to one embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:
the device comprises a cylinder 10, a hollow cylinder 20, a driving device 30, a driving paddle 40, a guide plate 50, a first flow guide part 51, a first side surface 511, a second side surface 512 and a second flow guide part 52.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings, which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Some embodiments according to the invention are described below with reference to fig. 1 to 5.
As shown in fig. 1-5, an embodiment of the present invention provides an underwater propulsion device, including: a cylinder 10; the cavity cylinder 20 is fixedly arranged in the cylinder 10, and a flow channel is defined by the outer side wall of the cavity cylinder 20 and the inner wall of the cylinder 10; a driving device 30 fixedly arranged at the front end of the cavity column 20; the driving paddle 40 is fixedly arranged on the power output shaft of the driving device 30; and a plurality of flow deflectors 50 formed by extending the outer side wall of the cavity cylinder 20 toward the cylinder 10 in the radial direction of the cavity cylinder 20, the flow deflectors 50 being located at the rear side of the driving blade 40, wherein from the rear to the front, a first flow guiding portion 51 at the front side of the flow deflectors 50 is gradually offset in the circumferential direction of the cavity cylinder 20 toward an offset direction opposite to the direction in which the driving blade 40 rotates.
In this scheme, first water conservancy diversion portion 51 upwards squints the direction to squinting gradually in the circumference of cavity cylinder 20, and the skew direction is opposite with drive paddle 40 pivoted direction, can reduce the velocity component of fluid after flowing out in the underwater propulsor in barrel 10 circumference, can improve propulsion efficiency.
When the driving blade 40 is operated, the driving blade 40 rotates, and the fluid forms a forward force on the driving blade 40 through the interaction between the driving blade 40 and the fluid, so that the underwater propeller advances. Wherein, after passing through the driving blades 40, the water flows through the flow channel between the cylinder 10 and the hollow cylinder 20, and finally flows out of the underwater propeller through the rear side of the cylinder 10. After water flows through the driving paddle 40, the water flow has velocity components in the axial direction of the cylinder 10 and the rotating direction of the driving paddle 40, the offset direction of the first flow guide part 51 is opposite to the rotating direction of the driving paddle 40, and after the fluid flows through the first flow guide part 51, the first flow guide part 51 can generate acting force opposite to the rotating direction of the flow guide paddle on the fluid, so that the velocity component of the fluid in the rotating direction of the driving paddle 40 is reduced, further, the velocity component of the fluid in the circumferential direction of the cylinder 10 after flowing out of the underwater propeller can be reduced, and the propelling efficiency can be improved.
Further, when the underwater propulsor is a handheld propulsor, the velocity component of the fluid flowing out of the underwater propulsor in the circumferential direction of the cylinder 10 is reduced, so that the disturbance of the water flow on the rear side of the underwater propulsor can be reduced, the influence of the water flow disturbance on a user is reduced, the difficulty of the user in underwater operation is reduced, and the underwater propulsor is better in usability.
As shown in fig. 1 and 2, in the above-described embodiment, preferably, the first deflector 51 includes the first side 511 and the second side 512, the first side 511 and the second side 512 are sequentially arranged in the direction in which the driving blade 40 rotates, the maximum bending angle of the first side 511 is the first acute angle α, and the first acute angle α is in the range of 6.8 ° to 28.1 °.
Specifically, the first side surface 511 intersects a cross section perpendicular to the extending direction of the first flow guiding portion 51 to form a first intersection line, wherein an orthogonal projection of the axis of the hollow cylinder 20 on the cross section forms a first acute angle α with a tangent of the first intersection line.
In this scheme, the biggest angular range of first acute angle α is 6.8 ~ 28.1, and in this scope, can carry out better direction to rivers, reduce the influence of rivers disturbance to the user at barrel 10 ascending velocity component in week after the fluid flows out from underwater propulsor in the reduction.
In any of the above solutions, as shown in fig. 3, the twist angle β of the driving blade 40 is preferably 60.9-76.6 °.
In the scheme, the angle range of the torsional angle β of the driving paddle 40 is 60.9-76.6 degrees, and the maximum angle range of the first acute angle α in the embodiment is matched, so that the velocity component of the fluid flowing out of the underwater propeller in the circumferential direction of the cylinder 10 can be reduced, and the influence of water flow disturbance on a user is further reduced.
In one embodiment of the present invention, the maximum angle of the first acute angle α is 6.8 °, and the angle of the drive blade 40 twist angle β is 60.9 °.
In one embodiment of the present invention, the maximum angle of the first acute angle α is 6.8 °, and the angle of the drive blade 40 twist angle β is 73 °.
In one embodiment of the present invention, the maximum angle of the first acute angle α is 6.8 °, and the angle of the drive blade 40 twist angle β is 76.6 °.
In one embodiment of the present invention, the maximum angle of the first acute angle α is 13 °, and the angle of the drive blade 40 twist angle β is 76.6 °.
In one embodiment of the present invention, the maximum angle of the first acute angle α is 19 °, and the angle of the drive blade 40 twist angle β is 76.6 °.
In one embodiment of the present invention, the maximum angle of the first acute angle α is 28.1 °, and the angle of the drive blade 40 twist angle β is 76.6 °.
As shown in fig. 1 and 5, in any of the above embodiments, preferably, the baffle 50 further includes: the second flow guiding portion 52 is fixedly disposed on the outer sidewall of the hollow cylinder 20, the second flow guiding portion 52 is correspondingly connected to the rear side of the first flow guiding portion 51, wherein the second flow guiding portion 52 extends along the axial direction of the hollow cylinder 20.
In this scheme, second water conservancy diversion portion 52 corresponds the setting with first water conservancy diversion portion 51, and second water conservancy diversion portion 52 is connected in first water conservancy diversion portion 51 rear side, and second water conservancy diversion portion 52 extends along the axis direction of cavity cylinder 20, and like this, after first water conservancy diversion portion 51 directs the fluid, second water conservancy diversion portion 52 can further reduce the velocity component of fluid in barrel 10 circumference, make the fluid velocity that flows out through the barrel 10 rear side parallel or be close parallel with the axis of barrel 10, can furthest reduce the influence of rivers disturbance to the user, reduce the degree of difficulty of user's operation under water.
In any of the above embodiments, as shown in fig. 5, preferably, the second flow guide portion 52 is formed by extending the outer side wall of the cavity cylinder 20 toward the cylinder 10 in the radial direction of the cavity cylinder 20.
In this scheme, second water conservancy diversion portion 52 is formed by the lateral wall of cavity cylinder 20 along the radial cylinder 10 extension of cavity cylinder 20, does not have the clearance between the lateral wall of second water conservancy diversion portion 52 and the cavity main part, can reduce the turbulent flow in the fluid flow way, and then reduces energy loss, can improve propulsion efficiency, promotes underwater propulsor's continuation of the journey.
In any of the above embodiments, preferably, the first diversion part 51 is fixedly connected with the inner wall of the cylinder 10, and the second diversion part 52 is fixedly connected with the inner wall of the cylinder 10.
In this scheme, first water conservancy diversion portion 51 and second water conservancy diversion portion 52 are fixed barrel 10 and cavity cylinder 20, needn't set up other connection structure in the fluid flow channel, and then can reduce the turbulent flow in the fluid flow channel, and then reduce energy loss, improve propulsion efficiency, promote underwater propulsor's continuation of the journey.
In any of the above embodiments, preferably, the method further includes: and the protective cover is fixedly arranged at the front side of the cylinder body 10, and the fluid flows into the flow channel through the protective cover and the driving paddle 40 in sequence.
In this scheme, the protection casing can prevent that the great impurity of diameter from destroying structures such as drive paddle 40 in getting into fluid flow path.
In any of the above embodiments, preferably, the cross section of the hollow cylinder 20 is circular, the cross section of the cylinder 10 is circular, and the hollow cylinder 20 is coaxially arranged with the cylinder 10.
In the scheme, the cavity cylinder 20 and the cylinder 10 are coaxially arranged to form a flow channel with a circular section, so that water can uniformly flow out of the rear side of the cylinder 10, and the thrust of each part is the same.
In any of the above embodiments, preferably, the number of the first flow guiding parts 51 is 3 to 5.
In the scheme, 3-5 guide plates 50 are provided, so that the fluid can be guided to reduce the velocity component of the fluid flowing out of the underwater propeller on the circumferential direction of the cylinder 10; meanwhile, only 3-5 guide plates are arranged, so that the energy loss of fluid can be reduced, and the endurance of the underwater propeller is convenient to promote.
Among them, it is preferable that the number of the baffles 50 is 3.
Wherein the first baffles 50 are preferably evenly distributed along the circumference of the cavity cylinder 20.
It is further preferable to design the first flow guiding part 51 and the second flow guiding part 52 to be integrally formed, so that the baffle 50 can be uniformly stressed.
It is further preferred that the outer side wall of the cylinder 10 is provided with a handle to facilitate the user to hold the underwater propulsion device to advance in water.
Above combine the figure to describe in detail the technical scheme of the utility model, the utility model provides an underwater propulsion device, first water conservancy diversion portion 51 can produce the effort opposite with water conservancy diversion paddle leaf direction of rotation to the fluid, makes the fluid reduce at the ascending velocity component of drive paddle leaf 40 direction of rotation, and then can reduce the fluid from the underwater propulsor in the ascending velocity component of barrel 10 week after flowing out, can improve propulsion efficiency.
Further, when the underwater propulsor is a handheld propulsor, the velocity component of the fluid flowing out of the underwater propulsor in the circumferential direction of the cylinder 10 is reduced, so that the disturbance of the water flow on the rear side of the underwater propulsor can be reduced, the influence of the water flow disturbance on a user is reduced, the difficulty of the user in underwater operation is reduced, and the underwater propulsor is better in usability.
Simulating the water inlet condition of the underwater propeller in ANSYS software, wherein the simulation condition drives the rotating speed of a blade 40 to be 3000rpm, the inflow speed to be 4 knots, the rotating wall surface, an RNG turbulence model, single-precision solving and liquid water.
The propeller housing resistance was 11.8N, about 1 kgf. Therefore, the total thrust of the 5-blade propeller is about 12.5 kgf; the total thrust of the 7-blade propeller is about 14.5 kgf; the total thrust of the 9-blade propeller is about 15 kgf. When the fluid flows out through the rear end of the flow channel, the flow direction of the fluid is basically parallel to the axis of the cylinder 10.
In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An underwater propulsion device, comprising:
a barrel;
the cavity cylinder is fixedly arranged in the cylinder, and a flow channel is defined by the outer side wall of the cavity cylinder and the inner wall of the cylinder;
the driving device is fixedly arranged at the front end of the cavity cylinder;
the driving paddle is fixedly arranged on a power output shaft of the driving device;
a plurality of guide plates formed by extending the outer side wall of the cavity cylinder to the cylinder in the radial direction of the cavity cylinder, the guide plates being located at the rear side of the driving paddles,
the first flow guide part on the front side of the flow guide plate gradually deviates to the deviation direction in the circumferential direction of the cavity cylinder from back to front, and the deviation direction is opposite to the rotating direction of the driving paddle.
2. Underwater propulsion device according to claim 1,
the first guide part comprises a first side surface and a second side surface, the first side surface and the second side surface are sequentially arranged in the rotating direction of the driving paddle, and the maximum bending angle of the first side surface ranges from 6.8 degrees to 28.1 degrees.
3. Underwater propulsion device according to claim 2,
the angle range of the torsional angle β of the driving paddle is 60.9-76.6 degrees.
4. Underwater propulsion device according to any of claims 1-3, characterized in that the deflector further comprises:
the second flow guide part is fixedly arranged on the outer side wall of the cavity cylinder and correspondingly connected with the rear side of the first flow guide part,
wherein the second flow guide part extends along the axial direction of the cavity cylinder.
5. Underwater propulsion device according to claim 4,
the second flow guide part is formed by extending the outer side wall of the cavity cylinder to the cylinder along the radial direction of the cavity cylinder.
6. Underwater propulsion device according to claim 4,
the guide plate is fixedly connected with the inner wall of the cylinder.
7. Underwater propulsion device according to any of the claims 1 to 3, further comprising:
and the protective cover is fixedly arranged on the front side of the barrel, and fluid flows into the flow channel through the protective cover and the driving blade in sequence.
8. Underwater propulsion device according to any of claims 1-3,
the cavity cylinder and the cylinder are coaxially arranged.
9. Underwater propulsion device according to any of claims 1-3,
the number of the guide plates is 3-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921387832.8U CN210942202U (en) | 2019-08-26 | 2019-08-26 | Underwater propelling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921387832.8U CN210942202U (en) | 2019-08-26 | 2019-08-26 | Underwater propelling device |
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| Publication Number | Publication Date |
|---|---|
| CN210942202U true CN210942202U (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921387832.8U Active CN210942202U (en) | 2019-08-26 | 2019-08-26 | Underwater propelling device |
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| CN (1) | CN210942202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113148086A (en) * | 2020-08-10 | 2021-07-23 | 西北工业大学 | Propulsion unit for extracting and utilizing rotational flow energy of underwater propeller |
-
2019
- 2019-08-26 CN CN201921387832.8U patent/CN210942202U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113148086A (en) * | 2020-08-10 | 2021-07-23 | 西北工业大学 | Propulsion unit for extracting and utilizing rotational flow energy of underwater propeller |
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