CN214002016U - Water jet propulsion device - Google Patents
Water jet propulsion device Download PDFInfo
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- CN214002016U CN214002016U CN202022185987.2U CN202022185987U CN214002016U CN 214002016 U CN214002016 U CN 214002016U CN 202022185987 U CN202022185987 U CN 202022185987U CN 214002016 U CN214002016 U CN 214002016U
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Abstract
The utility model discloses a water jet propulsion unit, a serial communication port, including the area of intaking, the impeller is regional, and sealed cabin, and the water conservancy diversion is regional, sprays regional and drive shaft, the drive shaft passes the area of intaking and fixes in sealed cabin, the impeller is regional to be adjoined the area of intaking, it is regional to spray the region water injection well choke that is provided with, the water conservancy diversion is regional to be provided with guide vane. The water-jet propeller has simple structure, smaller volume and small occupied area, thereby being more flexible in application and embodying the concept of green environmental protection; the water-jet propeller is designed in a modular manner, and is specially designed to be convenient to disassemble with a ship mounting structure, so that the efficiency is high; the inner bearing of the water-jet propeller is designed with a high-stability mechanical sealing structure, and the reliability is high.
Description
Technical Field
The utility model relates to an on water navigation ware field especially relates to a water jet propulsion unit.
Background
The water jet propeller is a propeller in which a jet part of a propulsion mechanism is immersed in water and a reaction force generated by the jet water flow is used to drive a ship to move forward.
The ordinary surfboards can be used only by the thrust of the wind waves, and when the wind waves are absent or small, the surfboards lose the due public use.
In order to realize surfing without wind waves or with small wind waves, one of the power surfboards in the prior art adopts an engine as power, and can surf on the sea and also drive on a flat water surface; the power surfboard of the type generally comprises components such as a hull component, a power device, an electric power system and the like, but most of the impellers and the shells of the water jet propulsion pump for the power surfboard in the prior art are made of aluminum alloy materials, the whole mass is large, the allowable highest rotating speed is low, large-diameter impellers are often adopted for achieving higher power, the highest rotating speed is further limited, the size of the water jet propulsion pump is large, the quality is high, and the power surfboard is not favorable for being developed to the direction of light weight and small volume.
SUMMERY OF THE UTILITY MODEL
The prior art waterjet propulsion systems having a water intake zone, an impeller zone, a flow guiding zone, a jet zone and a sealed cabin, the drive shaft passing directly through the water intake zone, result in the following disadvantages of such prior art waterjet propulsion systems:
the shaft sleeve needs to be sealed due to the guiding of the driving shaft, the known sealing mode generally adopts oil seal, usually adopts framework sealing, the sealing position is between an oil seal lip and the driving shaft, and the oil seal lip and the driving shaft rotate and rub at a relatively high speed. At the same time, wear with the drive shaft is greater, resulting in a lower product life and at the same time a high friction, so that a high drive power is necessary.
The existing water-jet propeller and the ship are integrated, and once the existing water-jet propeller and the ship are damaged, the maintenance and the disassembly of the product are complex, the efficiency is low, and the operation is difficult.
Because the problem of manufacturing process, because all water jet propulsion all need spray the region, so all water jet propulsion all need carry out the components of a whole that can function independently preparation, spray part and water conservancy diversion part adopt independent processing promptly, and known water jet propulsion adopts the mode that the later stage bonded, and easy fracture, the reliability is low, and the life-span is short, and this utility model discloses a hidden danger of solving the components of a whole that can function independently preparation adopts threaded connection, has reduced the risk of components of a whole that can function independently preparation.
The utility model aims to overcome the defects in the prior art and provide a cooling flame low-nitrogen combustion device and a combustion method thereof, which have the advantages of simple structure, low pollutant discharge, stable combustion and high thermal efficiency.
Particularly, the utility model provides a following technical scheme:
the utility model provides a water jet propulsion device, its characterized in that, including the regional 1 of intaking, impeller region 2 and sealed cabin 3, the regional 4 of water conservancy diversion, spray region 5 and drive shaft 6, drive shaft 6 crosses the regional 1 of intaking and fixes in sealed cabin 3, impeller region 2 borders on the regional 1 of intaking, spray region 5 is provided with water injection well choke 12, the regional 4 guide vanes 10 that are provided with of water conservancy diversion.
Preferably, the impeller region 2 comprises an impeller fixing member 7, an impeller 8 and an impeller fixing bolt 20, and the impeller 8 is locked on the driving shaft 6 by the impeller fixing bolt 20 and the impeller fixing member 7.
Preferably, the bottom end of the sealed chamber 3 is provided with an axial bearing 17 and a radial bearing 15, the axial bearing 17 and the radial bearing 15 are separated by a bearing spacer 16, and the axial bearing 17 and the radial bearing 15 are locked in the sealed chamber 3 by a bearing snap spring 14.
Preferably, the front end of the sealed cabin 3 locks the driving shaft in the sealed cabin 3 through the driving shaft fixing bolt 13, and the sealed cabin 3 is sealed by the sealed cabin cover 11.
Preferably, the rear end of the sealing cabin 3 is provided with a mechanical sealing static ring 18 and a mechanical sealing dynamic ring 19.
Preferably, the mechanical seal stationary ring 18 is provided with a drive shaft shoulder 22 at a position surrounding the drive shaft 6, and the drive shaft shoulder 22 is provided with the mechanical seal shaft stop 9.
Preferably, the mechanical seal static ring 18 and the mechanical seal dynamic ring 19 are connected and locked through the mechanical seal shaft stop 9.
Preferably, the guide vane is of a three-vane spiral structure.
Preferably, the water jet propulsion device is fixed on equipment needing to use the water jet propulsion device through the module fixing bolt holes 21.
Wherein, the water inlet area; an impeller region; sealing the cabin; a flow guiding area; the total length of the four regions may be only 12cm and the diameter of the housing may be only 10 cm.
The utility model also provides a foretell water jet propulsion unit's water jet propulsion method, wherein, including following step: the driving shaft 6 is driven to rotate by external force, the impeller 8 is driven to rotate to absorb water, water is guided by the guide vanes 10 and enters the spraying area 5 to be compressed through the water nozzle 12 to spray water, and then reverse thrust is generated, so that the device is pushed in the reverse direction of the sprayed water.
The utility model also provides a boats and ships with foretell water jet propulsion unit, preferably speed boat, unmanned ship, in motor boat and the electronic surfboard one or more than two kinds.
The utility model also provides an application of foretell water jet propulsion unit, wherein water jet propulsion unit can use in boats and ships, preferably is one or more than two in speed boat, unmanned ship, motor boat and the electronic surfboard.
The utility model has the advantages that:
the water-jet propeller has simple structure, smaller volume and small occupied area, thereby being more flexible in application and embodying the concept of green environmental protection;
the modular design of the water-jet propeller of the utility model is specially designed to be convenient to disassemble with the ship mounting structure, and the efficiency is high;
the inner bearing of the water-jet propeller of the utility model is designed with a high-stability mechanical sealing structure, and the reliability is high; the spraying nozzle of the water-jet propeller of the utility model is connected with the flow guiding part by screw thread, the operation is convenient, and the reliability is high;
dedicated business turn over water jet design, with the injection nozzle integrated into one piece of moulding plastics, the reliability is high.
Drawings
Fig. 1 is a sectional view of a water jet propulsion device 1 in embodiment 2.
Fig. 2 is a sectional view 2 of the water jet propulsion device in embodiment 2.
Fig. 3 is an isometric view of the water jet propulsion unit of embodiment 2.
Fig. 4 is a partially enlarged view of the mechanical seal shaft shoulders 9 and 22, the drive shaft, of the water jet propulsion device in embodiment 2.
The designations in the figures illustrate the following: 1-water inlet area; 2-the impeller region; 3-sealing the cabin; 4-a flow guide area; 5-a spray zone; 6-a drive shaft; 7-impeller fixing part; 8-impeller; 9-mechanical seal shaft stop; 10-guide vanes; 11-sealing the chamber cover; 12-a water nozzle; 13-drive shaft fixing bolt; 14-a bearing snap spring; 15-a radial bearing; 16-bearing spacer sleeve; 17-an axial bearing; 18-mechanical seal stationary ring; 19-mechanical seal movable ring; 20-impeller fixing bolts; 21-module fixing bolt holes; 22-drive shaft shoulder; 23-screw thread.
Detailed Description
To prior art's not enough, the utility model provides a water jet propulsion unit, including intaking regional 1, impeller region 2, and sealed cabin 3, the water conservancy diversion is regional 4, sprays regional 5 and drive shaft 6, drive shaft 6 crosses into water regional 1 and fixes in sealed cabin 3, impeller region 2 borders on intake regional 1, it is provided with water injection well choke 12 to spray regional 5, the regional 4 guide vanes 10 that are provided with of water conservancy diversion.
Preferably, the impeller region 2 comprises an impeller fixing member 7, an impeller 8 and an impeller fixing bolt 20, and the impeller 8 is locked on the driving shaft 6 by the impeller fixing bolt 20 and the impeller fixing member 7.
Preferably, the bottom end of the sealed chamber 3 is provided with an axial bearing 17 and a radial bearing 15, the axial bearing 17 and the radial bearing 15 are separated by a bearing spacer 16, and the axial bearing 17 and the radial bearing 15 are locked in the sealed chamber 3 by a bearing snap spring 14.
Preferably, the front end of the sealed cabin 3 locks the driving shaft in the sealed cabin 3 through the driving shaft fixing bolt 13, and the sealed cabin 3 is sealed by the sealed cabin cover 11.
Preferably, the rear end of the sealing cabin 3 is provided with a mechanical sealing static ring 18 and a mechanical sealing dynamic ring 19.
Preferably, the mechanical seal stationary ring 18 is provided with a drive shaft shoulder 22 at a position surrounding the drive shaft 6, and the drive shaft shoulder 22 is provided with the mechanical seal shaft stop 9.
Preferably, the mechanical seal static ring 18 and the mechanical seal dynamic ring 19 are connected and locked through the mechanical seal shaft stop 9.
Preferably, the guide vane is of a three-vane spiral structure.
Preferably, the water jet propulsion device is fixed on equipment needing to use the water jet propulsion device through the module fixing bolt holes 21.
Wherein, the water inlet area; an impeller region; sealing the cabin; a flow guiding area; the total length of the four regions may be only 12cm and the diameter of the housing may be only 10 cm.
The utility model also provides a foretell water jet propulsion unit's water jet propulsion method, wherein, including following step: the driving shaft 6 is driven to rotate by external force, the impeller 8 is driven to rotate to absorb water, water is guided by the guide vanes 10 and enters the spraying area 5 to be compressed through the water nozzle 12 to spray water, and then reverse thrust is generated, so that the device is pushed in the reverse direction of the sprayed water.
The utility model also provides a boats and ships with foretell water jet propulsion unit, preferably speed boat, unmanned ship, in motor boat and the electronic surfboard one or more than two kinds.
The utility model also provides an application of foretell water jet propulsion unit, wherein water jet propulsion unit can use in boats and ships, preferably is one or more than two in speed boat, unmanned ship, motor boat and the electronic surfboard.
The cooling flame low-nitrogen combustion device and the combustion method thereof according to the present invention will be further described with reference to the following specific examples.
Example 1
A water jet propulsion device is provided with a water inlet area 1, an impeller area 2, a sealed cabin 3, a diversion area 4, a jet area 5 and a driving shaft 6, wherein the driving shaft 6 penetrates through the water inlet area 1 to be fixed in the sealed cabin 3, the impeller area 2 is adjacent to the water inlet area 1, and the jet area 5 is provided with a water nozzle 12. The impeller region 2 comprises an impeller fixing part 7, an impeller 8 and an impeller fixing bolt 20, the impeller 8 is locked on the driving shaft 6 through the impeller fixing bolt 20 and the impeller fixing part 7 in a matched mode, and the flow guide region 4 is provided with flow guide blades 10.
The external motor drives the driving shaft 6 to rotate to drive the impeller 8 to rotate to suck water, the water is guided by the guide vanes 10 and enters the spraying area 5 to be compressed and sprayed, reverse thrust is generated, and the device moves forward. The water inlet and outlet nozzle 12 and the injection spray nozzle are integrally formed.
Example 2
A water jet propulsion device is provided with a water inlet area 1, an impeller area 2, a sealed cabin 3, a diversion area 4, a jet area 5 and a driving shaft 6, wherein the driving shaft 6 penetrates through the water inlet area 1 to be fixed in the sealed cabin 3, the impeller area 2 is adjacent to the water inlet area 1, and the jet area 5 is provided with a water nozzle 12.
The impeller region 2 comprises an impeller fixing part 7, an impeller 8 and an impeller fixing bolt 20, the impeller 8 is locked on the driving shaft 6 through the impeller fixing bolt 20 and the impeller fixing part 7 in a matched mode, and the flow guide region 4 is provided with flow guide blades 10.
The sealed cabin 3 is a sealed area of a product, an axial bearing 17 and a radial bearing 15 are arranged at the bottom end of the sealed cabin 3, the axial bearing 17 and the radial bearing 15 are separated by a bearing spacer 16, and the axial bearing 17 and the radial bearing 15 are locked in the sealed cabin 3 by a bearing clamp spring 14. The front end of the sealed cabin 3 locks the driving shaft in the sealed cabin 3 through the driving shaft fixing bolt 13, and the sealed cabin 3 is sealed by a sealed cabin cover 11. The rear end of the sealing cabin 3 is provided with a mechanical sealing static ring 18 and a mechanical sealing dynamic ring 19. The mechanical seal static ring 18 is provided with a drive shaft shoulder 22 at a position surrounding the drive shaft 6, and the drive shaft shoulder 22 is provided with a mechanical seal shaft stop 9. The mechanical seal static ring 18 and the mechanical seal dynamic ring 19 are connected and locked through the mechanical seal shaft stop 9.
The motor rotates to drive the driving shaft 6 to rotate, the impeller 8 is locked on the driving shaft 6 through the impeller fixing bolt 20 in a matched mode with the impeller fixing piece 7, the impeller 8 rotates to suck water, fluid is guided through the guide vanes 10 to suck water flow to pass through the impeller area 2 and the guide area 4, water flow is sprayed out of the spraying area 5 to generate thrust, and the water inlet and outlet nozzle 12 and the injection molding spraying nozzle are integrally formed. The sealed cabin 3 is the sealed region of product, and axial bearing 17 installs in sealed cabin 3 bottom, resists the reverse thrust of water jet propulsion unit, and radial bearing 15 is used the power to increase the rotational stability of drive shaft 6, because the high rotational speed and the high thrust of drive shaft 6, therefore need axial bearing 17 to offset reverse thrust and radial bearing 15 to increase the drive shaft stability, prevents simultaneously through mechanical seal that rivers get into sealed cabin, realizes the sealed cabin's seal. The whole module can be quickly fixed on the main body equipment through the module fixing bolt holes (21).
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. The water jet propulsion device is characterized by comprising a water inlet area (1), an impeller area (2), a sealed cabin (3), a flow guide area (4), a jet area (5) and a driving shaft (6), wherein the driving shaft (6) penetrates through the water inlet area (1) to be fixed in the sealed cabin (3), the impeller area (2) is adjacent to the water inlet area (1), the jet area (5) is provided with a water nozzle (12), and the flow guide area (4) is provided with flow guide blades (10).
2. The water jet propulsion device according to claim 1, wherein the impeller region (2) comprises an impeller fixing member (7), an impeller (8), an impeller fixing bolt (20), and the impeller (8) is locked on the drive shaft (6) by the impeller fixing bolt (20) in cooperation with the impeller fixing member (7).
3. A water jet propulsion device according to claim 1 or 2, wherein the bottom end of the sealed chamber (3) is provided with an axial bearing (17) and a radial bearing (15), the axial bearing (17) and the radial bearing (15) are separated by a bearing spacer (16), and the axial bearing (17) and the radial bearing (15) are locked in the sealed chamber (3) by a bearing snap spring (14).
4. The water jet propulsion device according to claim 1, wherein the front end of said sealed compartment (3) locks the drive shaft in the sealed compartment (3) by means of a drive shaft fixing bolt (13), said sealed compartment (3) being closed with a sealed compartment cover (11).
5. The device according to claim 1, wherein the rear end of the sealed cabin (3) is provided with a mechanical seal stationary ring (18) and a mechanical seal moving ring (19).
6. The device according to claim 5, wherein the mechanical seal ring (18) is provided with a drive shaft shoulder (22) at a position surrounding the drive shaft (6), and the drive shaft shoulder (22) is provided with a mechanical seal stop (9).
7. The device according to claim 5 or 6, wherein the mechanical seal stationary ring (18) and the mechanical seal moving ring (19) are connected and locked by a mechanical seal shaft stop (9).
8. The water jet propulsion device according to claim 1, wherein the guide vanes are of a three-bladed spiral configuration.
9. The device according to claim 1, wherein the device is fixed to the equipment for which the device is intended by means of module fixing bolt holes (21).
10. The water jet propulsion device according to claim 6, wherein the bottom end of the sealed chamber (3) is provided with an axial bearing (17) and a radial bearing (15), the axial bearing (17) and the radial bearing (15) are separated by a bearing spacer (16), and the axial bearing (17) and the radial bearing (15) are locked in the sealed chamber (3) by a bearing snap spring (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022185987.2U CN214002016U (en) | 2020-09-29 | 2020-09-29 | Water jet propulsion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022185987.2U CN214002016U (en) | 2020-09-29 | 2020-09-29 | Water jet propulsion device |
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| Publication Number | Publication Date |
|---|---|
| CN214002016U true CN214002016U (en) | 2021-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022185987.2U Active CN214002016U (en) | 2020-09-29 | 2020-09-29 | Water jet propulsion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118088498A (en) * | 2024-03-27 | 2024-05-28 | 上海船舶运输科学研究所有限公司 | Guide vane body with cooling channel, axial flow pump and manufacturing method of guide vane body and axial flow pump |
-
2020
- 2020-09-29 CN CN202022185987.2U patent/CN214002016U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118088498A (en) * | 2024-03-27 | 2024-05-28 | 上海船舶运输科学研究所有限公司 | Guide vane body with cooling channel, axial flow pump and manufacturing method of guide vane body and axial flow pump |
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