CN216611548U - Duct shell, nozzle assembly and submersible propeller - Google Patents
Duct shell, nozzle assembly and submersible propeller Download PDFInfo
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- CN216611548U CN216611548U CN202123115181.7U CN202123115181U CN216611548U CN 216611548 U CN216611548 U CN 216611548U CN 202123115181 U CN202123115181 U CN 202123115181U CN 216611548 U CN216611548 U CN 216611548U
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Abstract
The utility model discloses a ducted shell, a nozzle assembly and a submersible propeller, wherein the ducted shell is provided with two opposite ends, the ducted shell is provided with a channel, and the channel is communicated with the two ends of the ducted shell; the screw station is arranged in the channel, the screw station is used for containing a screw, a groove is arranged in the channel, the groove is circumferentially and closely surrounded along the channel, the groove comprises a groove bottom and two oppositely arranged groove walls, and the screw station is clamped between the two groove walls and is arranged in a clearance with the groove bottom. The technical scheme of the utility model can improve the propelling efficiency of the submersible propeller.
Description
Technical Field
The utility model relates to the technical field of submersible propellers, in particular to a ducted shell, a nozzle assembly and a submersible propeller.
Background
A diving propeller, also called as an underwater booster, is an important auxiliary device for shallow sea diving. The submersible propeller generates thrust by reversely pushing water flow through the rotation of the propeller. The propeller is usually located in a ducted casing, the diameter size of the propeller is limited by the ducted casing, and the diameter size of the propeller is a main factor affecting the propulsion efficiency of the submersible propeller. The existing submersible propeller cannot use a propeller with larger diameter under the condition of not changing the size of the ducted shell, so that the propelling efficiency of the submersible propeller is difficult to improve.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a ducted shell and aims to improve the propelling efficiency of a submersible propeller.
In order to achieve the purpose, the ducted shell provided by the utility model is provided with two opposite ends, and is provided with a channel which is communicated with the two ends of the ducted shell;
the screw station is arranged in the channel and used for containing a screw, a groove is formed in the channel and surrounds the channel in a closed mode along the circumferential direction of the channel, the groove comprises a groove bottom and two opposite groove walls, and the screw station is clamped between the two groove walls and arranged in a clearance mode with the groove bottom.
Optionally, the included angle between the groove bottom and the groove wall is greater than 90 °.
Optionally, the curvature of the wall surface of the slot wall varies continuously to connect the inner wall surface of the channel and the slot bottom.
Optionally, the slot wall comprises:
the connecting section is connected with the inner wall surface of the channel, and the other connecting section is connected with the groove bottom; and
the transition section is clamped between the two connecting sections and connected with the connecting sections, and the curvature of the connecting sections is smaller than that of the transition section.
Optionally, the part of the channel having the groove is made of a metal material.
The utility model also provides a nozzle assembly, which comprises a duct shell and a flow guide piece, wherein one end of the duct shell is used for entering the fluid, the other end of the duct shell is used for flowing out the fluid, the flow guide piece is used for guiding the fluid, and the flow guide piece is connected to one end of the duct shell, which is used for entering the fluid;
the ducted shell is provided with two opposite ends and is provided with a channel, and the channel is communicated with the two ends of the ducted shell;
the novel propeller is characterized in that a propeller station is arranged in the channel and used for containing a propeller, a groove is formed in the channel, the groove surrounds the channel in a closed mode in the circumferential direction, the groove comprises a groove bottom and two oppositely arranged groove walls, and the propeller station is clamped between the two groove walls and arranged in a gap mode with the groove bottom.
Optionally, the flow guide comprises:
a mounting connected to one end of the ducted housing for entry of fluid;
a flow guide projection; and
the guide piece is provided with two opposite side edges along the length direction, one side edge of the guide piece is connected with the guide bump, and the other side edge of the guide piece is connected with the mounting piece;
wherein the flow guide projections and the flow guide vanes are used to flow fluid along a duct towards the duct housing.
Optionally, the diversion projection has two oppositely disposed side surfaces, and one side surface of the diversion projection, which is far away from the ducted casing, is tapered toward the other side surface close to the ducted casing.
Optionally, the cross section of the guide vane perpendicular to the length direction is shuttle-shaped.
The utility model also provides a submersible propeller, which comprises a propeller main body and a nozzle assembly, wherein the nozzle assembly comprises a duct shell and a flow guide part, one end of the duct shell is used for entering fluid, the other end of the duct shell is used for flowing out the fluid, the flow guide part is used for guiding the fluid, and the flow guide part is connected to one end of the duct shell, which is used for entering the fluid;
the ducted shell is provided with two opposite ends and is provided with a channel, and the channel is communicated with the two ends of the ducted shell;
the novel propeller is characterized in that a propeller station is arranged in the channel and used for containing a propeller, a groove is formed in the channel, the groove surrounds the channel in a closed mode in the circumferential direction, the groove comprises a groove bottom and two oppositely arranged groove walls, and the propeller station is clamped between the two groove walls and arranged in a gap mode with the groove bottom.
According to the technical scheme, a channel is formed in a ducted shell, a propeller station is arranged in the channel, and a propeller is located on the propeller station. Through set up the recess on the passageway, the recess encircles along the circumference closure of passageway, press from both sides between the two cell walls that the recess is relative and establish the screw station, the tank bottom and the screw station clearance of recess set up, thereby the diameter of screw station has been enlarged, make the screw station can place the screw of bigger diameter, also the dive propeller can install the screw of bigger diameter under the unchangeable condition of duct casing size, the screw of big diameter can provide bigger propulsive force, and then can improve the propulsive efficiency of dive propeller.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of a ducted housing of the present invention;
FIG. 2 is a structural cross-sectional view of a ducted housing in an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic structural view of one embodiment of a nozzle assembly of the present invention;
FIG. 5 is a front view of a nozzle assembly according to an embodiment of the present invention;
fig. 6 is an exploded sectional view of the structure of a nozzle assembly in an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 100 | |
1131 | Connecting |
|
| 10 | |
1133 | |
|
| | Channel | 30 | |
|
| 11 | |
31 | |
|
| 111 | |
33 | |
|
| 113 | Wall of the |
35 | Flow deflector |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indications in the embodiments of the present invention are only used to explain the relative position relationship, the motion condition, etc. of each component in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a ducted housing.
As shown in fig. 1 to 3, in an embodiment of the ducted housing 10 of the present invention, the ducted housing 10 has two opposite ends, and the ducted housing 10 is opened with a channel 10a, and the channel 10a communicates with the two ends of the ducted housing 10. The channel 10a is internally provided with a propeller station, the propeller station is used for accommodating a propeller, the channel 10a is internally provided with a groove 11, the groove 11 is enclosed and surrounded along the circumferential direction of the channel 10a, the groove 11 comprises a groove bottom 111 and two oppositely arranged groove walls 113, and the propeller station is clamped between the two groove walls 113 and arranged in a clearance with the groove bottom 111.
In this embodiment, the ducted casing 10 is a casing structure covered outside the propeller, and the propeller applies work to the fluid in the ducted casing 10 to jet the fluid at a high speed, thereby obtaining a propulsive force. A channel 10a is formed in the ducted housing 10, and a propeller station is provided on the channel 10a, and the propeller is located on the propeller station. Through set up recess 11 on passageway 10a, recess 11 encircles along the circumference closure of passageway 10a, also this recess 11 is the ring channel, press from both sides between two cell walls 113 that recess 11 is relative and establish the screw station, the tank bottom 111 and the screw station clearance of recess 11 set up, thereby the diameter of screw station has been enlarged, make the screw of bigger diameter can be placed to the screw station, also the dive propeller can install the screw of bigger diameter under the unchangeable condition of duct casing 10 size, the screw of big diameter can provide bigger propulsive force, and then can improve dive propeller's propulsive efficiency.
Typically, the angle between the bottom surface of the slot and the wall surface of the slot is 90 °, and such slot is disposed in the bypass casing 10, because the fluid in the bypass casing 10 flows at a high speed, a low pressure region is formed at the junction between the bottom surface of the slot and the wall surface of the slot, and the low pressure region generates a suction force to the fluid, thereby reducing the flow velocity of the fluid, resulting in a reduction in the speed of the fluid ejection, and the obtained propulsion force is reduced, thereby reducing the propulsion efficiency.
As shown in fig. 2 and 3, in an embodiment of the ducted housing 10 of the present invention, the slot bottom 111 is angled more than 90 ° from the slot wall 113.
In this embodiment, the included angle between the groove bottom 111 and the groove wall 113 is greater than 90 °, that is, the groove wall 113 is inclined to the groove bottom 111. Compared with the arrangement mode that the included angle between the bottom surface and the wall surface of the common groove is 90 degrees, the arrangement mode can guide the fluid to transit from the inner wall of the channel 10a to the groove bottom 111 of the groove 11, so that the low-pressure area is reduced in the process that the fluid flows from the inner wall of the channel 10a to the groove bottom 111 of the groove 11, the resistance of the fluid can be effectively reduced, the flow speed of the fluid in the bypass shell 10 can be further improved, and the propulsion efficiency of the submersible propeller can be further improved.
As shown in fig. 2 and 3, in an embodiment of the ducted housing 10 of the present invention, the curvature of the wall surface of the slot wall 113 continuously changes to connect the inner wall surface of the channel 10a and the slot bottom 111.
In this embodiment, the curvature is used to measure the degree of curvature. The larger the curvature, the larger the degree of curvature, and conversely, the smaller the curvature, the smaller the degree of curvature. The continuous change in the curvature of the wall surface of the groove wall 113 means that the curvature of the wall surface of the groove wall 113 gradually changes, i.e., is gently curved. Compared with the arrangement mode that the wall surface of the groove wall 113 is straight, the arrangement mode of the submersible propeller is more beneficial to fluid flow, and can further reduce the resistance of the groove wall 113 to the fluid, so that the flow velocity of the fluid is further improved, and the propelling efficiency of the submersible propeller is further improved.
As shown in fig. 2 and 3, in an embodiment of the ducted casing 10 of the present invention, the slot wall 113 includes two connecting sections 1131 and a transition section 1133, one connecting section 1131 connects the inner wall surface of the channel 10a, and the other connecting section 1131 connects the slot bottom 111. The transition section 1133 is sandwiched between the two connecting sections 1131 and connects the connecting sections 1131, and the curvature of the connecting section 1131 is smaller than that of the transition section 1133.
In this embodiment, the curvature of the two connecting sections 1131 is smaller than that of the transition section 1133, that is, the slot wall 113 is arranged in a streamline shape. Compared with the arrangement mode that the wall surface of the groove wall 113 is straight, the embodiment of the utility model guides the fluid to transit from the inner wall of the channel 10a to the groove bottom 111 of the groove 11 through streamline arrangement, so that in the process that the fluid flows from the inner wall of the channel 10a to the groove bottom 111 of the groove 11, the vortex action can be reduced or the vortex formation can be avoided, the resistance of the fluid can be further reduced, the flow velocity of the fluid in the bypass shell 10 can be further improved, and the propelling efficiency of the submersible propeller can be further improved.
As shown in fig. 2 and 3, in an embodiment of the ducted housing 10 of the present invention, the portion of the channel 10a having the groove 11 is made of a metal material.
In this embodiment, the portion of the channel 10a having the groove 11 is made of a metal material, that is, the groove 11 is made of a metal material, so that the strength of the channel 10a can be prevented from being weakened by forming the groove 11, the strength of the channel 10a can be effectively improved, and the service life of the ducted housing 10 can be prolonged.
As shown in fig. 4 to 6, the present invention also provides a nozzle assembly 100, the nozzle assembly 100 including a bypass housing 10 having one end of the bypass housing 10 for entering a fluid, the other end of the bypass housing 10 for exiting the fluid, a deflector 30 for guiding the fluid, and the deflector 30 connected to one end of the bypass housing 10 for entering the fluid. The specific structure of the ducted casing 10 refers to the above embodiments, and since the nozzle assembly 100 adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
In this embodiment, the fluid enters the ducted housing 10 from the deflector 30 and then is ejected from the ducted housing 10, thereby obtaining a propulsive force. The magnitude of the propulsive force is affected by the magnitude of the velocity of the fluid ejected from the ducted housing 10. The flow direction of the fluid entering the ducted casing 10 can be the same as the direction of the fluid ejected from the ducted casing 10 by arranging the flow guide member 30, and compared with the case that the fluid enters the ducted casing 10 in all directions, the fluids in different directions can be blocked mutually, but after the fluid passes through the flow guide member 30, the flow direction of the fluid in the embodiment of the present invention is the same, so that the resistance of the fluid can be reduced, the flow speed of the fluid can be increased, and the propelling force can be increased.
As shown in fig. 4 to 6, in an embodiment of the nozzle assembly 100 of the present invention, the flow guiding member 30 includes a mounting member 31, a flow guiding protrusion 33 and a flow guiding plate 35. The mounting 31 is connected to one end of the ducted housing 10 for the entry of fluid. The flow deflector 35 has two opposite sides along the length direction, one side of the flow deflector 35 is connected to the flow guiding protrusion 33, and the other side of the flow deflector 35 is connected to the mounting member 31. Wherein the flow guiding projections 33 and the flow guiding fins 35 are used for flowing the fluid along the duct towards the duct housing 10.
In this embodiment, the installation member 31 facilitates the connection of the ducted housing 10 such that the ducted housing 10 and the flow guide 30 can be disassembled, thereby facilitating the overhaul of the ducted housing 10 or the flow guide 30. By guiding the fluid by the guide protrusions 33 and the guide vanes 35, it is possible to make the fluid flow in different directions in the axial direction of the ducted housing 10 and to facilitate the introduction of the fluid from around the ducted housing 10 into the channel 10 a.
As shown in fig. 4 to 6, in an embodiment of the nozzle assembly 100 of the present invention, the diversion protrusion 33 has two opposite sides, and one side of the diversion protrusion 33 away from the ducted casing 10 is tapered toward the other side close to the ducted casing 10.
In this embodiment, one side of the diversion protrusion 33 is tapered toward the other side, that is, one side of the diversion protrusion 33 is larger than the other side, and the transition from the larger side to the smaller side is tapered, that is, a kind of landslide is formed. With this arrangement, the fluid flows from the large side to the small side along the outer wall of the flow guide projection 33, that is, along the slope, so that the flow directions of the fluid in different flow directions are the same after passing through the flow guide projection 33.
As shown in fig. 4 to 6, in an embodiment of the nozzle assembly 100 of the present invention, the cross-section of the guide vane 35 perpendicular to the length direction is shuttle-shaped.
In this embodiment, the fusiform shape is a shape having two sharp ends and a wide middle. The cross section of the deflector 35 perpendicular to the length direction is shuttle-shaped, that is, the opposite two side edges of the deflector 35 in the width direction are flatter than the middle part, that is, the two side edges of the deflector 35 in the width direction are pointed, and the middle part is raised. So set up, can reduce the resistance of the side of water conservancy diversion piece 35 to the fluidic velocity of flow to improve, and then can improve underwater propulsor's propulsion efficiency.
The utility model further provides a submersible thruster, which comprises a thruster main body and a nozzle assembly 100, the specific structure of the nozzle assembly 100 refers to the above embodiments, and the submersible thruster adopts all technical solutions of all the above embodiments, so that at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and the details are not repeated herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A ducted shell is applied to a submersible propeller and is characterized in that the ducted shell is provided with two opposite ends, the ducted shell is provided with a channel, and the channel is communicated with the two ends of the ducted shell;
the novel propeller is characterized in that a propeller station is arranged in the channel and used for containing a propeller, a groove is formed in the channel, the groove surrounds the channel in a closed mode in the circumferential direction, the groove comprises a groove bottom and two oppositely arranged groove walls, and the propeller station is clamped between the two groove walls and arranged in a gap mode with the groove bottom.
2. The ducted housing of claim 1 wherein the slot bottom is angled at greater than 90 ° to the slot wall.
3. The ducted housing of claim 2, wherein the curvature of the wall surfaces of the slot walls varies continuously to connect the inner wall surface of the channel with the slot bottom.
4. The ducted housing of claim 3, wherein the slot walls comprise:
the connecting section is connected with the inner wall surface of the channel, and the other connecting section is connected with the groove bottom; and
the transition section is clamped between the two connecting sections and connected with the connecting sections, and the curvature of the connecting sections is smaller than that of the transition section.
5. The ducted housing according to claim 4, wherein the portion of the channel having the grooves is made of a metallic material.
6. Nozzle assembly, comprising a duct housing according to any of claims 1 to 5, one end of which is intended for the inlet of a fluid and the other end of which is intended for the outlet of a fluid, and a flow guide for guiding the fluid, which flow guide is connected to the end of the duct housing intended for the inlet of the fluid.
7. The nozzle assembly of claim 6, wherein the flow guide comprises:
a mounting connected to one end of the ducted housing for entry of fluid;
a flow guide projection; and
the guide piece is provided with two opposite side edges along the length direction, one side edge of the guide piece is connected with the guide bump, and the other side edge of the guide piece is connected with the mounting piece;
wherein the flow guide projections and the flow guide vanes are used to flow fluid along a duct towards the duct housing.
8. The nozzle assembly of claim 7, wherein the flow-directing projection has two oppositely disposed sides, the flow-directing projection tapering from one side distal to the bypass housing to another side proximal to the bypass housing.
9. The nozzle assembly of claim 7, wherein the cross-section of the deflector perpendicular to the length direction is fusiform.
10. A submersible thruster comprising a thruster body and a nozzle assembly as claimed in any one of claims 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123115181.7U CN216611548U (en) | 2021-12-10 | 2021-12-10 | Duct shell, nozzle assembly and submersible propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123115181.7U CN216611548U (en) | 2021-12-10 | 2021-12-10 | Duct shell, nozzle assembly and submersible propeller |
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| Publication Number | Publication Date |
|---|---|
| CN216611548U true CN216611548U (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123115181.7U Active CN216611548U (en) | 2021-12-10 | 2021-12-10 | Duct shell, nozzle assembly and submersible propeller |
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| CN (1) | CN216611548U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023104129A1 (en) * | 2021-12-10 | 2023-06-15 | 深圳市苇渡智能科技有限公司 | Flow guide apparatus and diving device |
-
2021
- 2021-12-10 CN CN202123115181.7U patent/CN216611548U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023104129A1 (en) * | 2021-12-10 | 2023-06-15 | 深圳市苇渡智能科技有限公司 | Flow guide apparatus and diving device |
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