CN214036251U - Small water jet propulsion pump with light weight and high thrust and water surface power flat plate - Google Patents
Small water jet propulsion pump with light weight and high thrust and water surface power flat plate Download PDFInfo
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- CN214036251U CN214036251U CN202022922216.7U CN202022922216U CN214036251U CN 214036251 U CN214036251 U CN 214036251U CN 202022922216 U CN202022922216 U CN 202022922216U CN 214036251 U CN214036251 U CN 214036251U
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- jet propulsion
- impeller
- water jet
- propulsion pump
- rotating shaft
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Abstract
The utility model relates to a power board technical field on water especially relates to a small-size water jet propulsion pump of light high thrust. The light high-thrust small water jet propulsion pump comprises a water jet propulsion pump shell, an impeller rotating shaft, a nozzle, a guide vane and an impeller, wherein one end of the impeller rotating shaft extends into an inner cavity of the water jet propulsion pump shell, the other end of the impeller rotating shaft is connected with a driving mechanism, and the impeller and the guide vane are sequentially arranged on the water jet propulsion pump shell from front to back; the driving mechanism drives the impeller rotating shaft to further drive the impeller to rotate; the water jet propulsion pump shell and the impeller are made of aluminum alloy, the aluminum alloy is high in strength and light in weight, the overall weight is greatly reduced, the self weight of the impeller is also greatly reduced, the allowable use rotating speed of the impeller is greatly improved, the size of the impeller is further optimized, the high-power water jet propulsion pump with the high rotating speed and the small diameter impeller is finally formed, and powerful guarantee is provided for the development of the power surfboard to the direction of light weight and small size.
Description
Technical Field
The utility model relates to a power board technical field on water especially relates to a small-size water jet propulsion pump and surface of water power flat board of light high thrust.
Background
At present, a conventional water surface power flat plate is provided with a special power cabin, a power device is a special single module, a motor and a driving control system are installed, and a water jet propulsion pump is driven by the motor and a water jet is positioned at the rear part of a bottom surface plate of a buoyancy plate body; the motor type is mostly brushless DC motor, the rotating shaft of the brushless DC motor is connected with the impeller rotating shaft of the water jet propulsion pump through the shaft coupling, and a motor cooling system and a drive control system are further arranged in part of the water jet power device.
However, most of the impellers and the casing of the water jet propulsion pump for the power surfboard in the prior art are made of cast iron materials, the overall mass is large, the allowable maximum rotating speed is slightly low, and a large-diameter impeller is often adopted for achieving high power, so that the required torque moment is increased, the maximum rotating speed is further limited, the water jet propulsion pump is large in size and high in quality, and the development of the water jet propulsion pump in the light weight and small volume direction is not facilitated.
Therefore, it is necessary to provide a small water jet propulsion pump and a water surface power plate which are lightweight and have high thrust.
Disclosure of Invention
The invention provides a light large-thrust small water jet propulsion pump and a water surface power flat plate, and aims to solve the problems of large size, heavy overall mass, low rotating speed and large torque of the conventional water jet propulsion pump.
The small water jet propulsion pump with light weight and high thrust provided by the embodiment of the invention comprises a water jet propulsion pump shell, an impeller rotating shaft, a nozzle, a guide vane and an impeller, wherein one end of the impeller rotating shaft extends into an inner cavity of the water jet propulsion pump shell, the other end of the impeller rotating shaft is connected with a driving mechanism, the water jet propulsion pump shell is sequentially provided with the impeller and the guide vane from front to back, and the impeller is arranged on the impeller rotating shaft; the front end of the water jet propulsion pump shell is communicated with the water inlet channel, and the rear end of the water jet propulsion pump shell is provided with a nozzle; the water jet propulsion pump shell is made of high-strength aluminum alloy materials.
One end of the impeller rotating shaft is fixed on a thrust bearing and a deep groove ball bearing in the bearing block.
Wherein a high-speed water spraying channel is formed between the guide vane and the nozzle.
The impeller is made of a high-strength aluminum alloy material.
Wherein, the driving mechanism is a driving motor.
The device also comprises a control power supply, wherein the control power supply is connected with the driving motor.
The application also provides a water surface power flat plate which comprises the light high-thrust small water jet propulsion pump.
The invention has the beneficial effects that:
in the light high-thrust small-size water jet propulsion pump provided by the embodiment of the invention, the driving mechanism drives the impeller rotating shaft to further drive the impeller to rotate, and the water jet propulsion system extracts seawater and sprays the seawater through the nozzle of the tail pipeline to move forwards under the action of back flushing; the basic principle of water jet propulsion is similar to the working principle of the traditional propeller; the water jet propulsion pump shell and the impeller are made of aluminum alloy, the aluminum alloy is high in strength and light in weight, the overall weight is greatly reduced, the self weight of the impeller is also greatly reduced, the allowable use rotating speed of the impeller is greatly improved, the size of the impeller is further optimized, the high-power water jet propulsion pump with the high rotating speed and the small diameter impeller is finally formed, and powerful guarantee is provided for the development of the power surfboard to the direction of light weight and small size.
Drawings
Fig. 1 is a schematic structural view of a lightweight high-thrust small water jet propulsion pump of the present invention.
In the figure: 1. a waterjet propulsion pump housing; 2. a nozzle; 3. a guide vane; 4. an impeller; 5. an impeller shaft; 6. a water inlet channel.
Detailed Description
The following describes a specific embodiment of an embodiment of the present invention with reference to the drawings.
Fig. 1 is a light high-thrust small-sized water jet propulsion pump provided by an embodiment of the present invention, which includes a water jet propulsion pump housing 1, an impeller rotating shaft 5, a nozzle 2, a guide vane 3, and an impeller 4, wherein one end of the impeller rotating shaft extends into an inner cavity of the water jet propulsion pump housing, the other end is connected with a driving mechanism, the water jet propulsion pump housing is provided with the impeller and the guide vane in sequence from front to back, and the impeller is mounted on the impeller rotating shaft; the front end of the water jet propulsion pump shell is communicated with the water inlet channel 6, and the rear end of the water jet propulsion pump shell is provided with a nozzle 2; the water jet propulsion pump shell is made of high-strength aluminum alloy materials.
In the embodiment, the driving mechanism drives the impeller rotating shaft to drive the impeller to rotate, and the water jet propulsion system extracts seawater and jets the seawater out through the nozzle of the tail pipeline to move forwards under the action of back flushing; the basic principle of water jet propulsion is similar to the working principle of a traditional propeller, and particularly, accelerated water flow is jetted to the direction opposite to the movement of a ship, so that a ship body is subjected to the reaction force of the water flow to generate thrust; the thrust is equal to the momentum change rate of the fluid flowing through the flow channel of the thruster in unit time, and the thrust is related to the density of the seawater, the sectional area of the tail water spraying pipeline and the speed of the sprayed water flow, so that the water spraying speed determines the final thrust when the density of the seawater and the sectional area of the pipeline opening are fixed.
Because the casing of the water jet propulsion pump is made of aluminum alloy, the aluminum alloy has high strength and light weight, and the overall weight is greatly reduced.
Specifically, one end of the impeller rotating shaft is fixed on a thrust bearing and a deep groove ball bearing in a bearing seat. And one end of the impeller rotating shaft is the output end of the impeller rotating shaft.
In the above embodiment, one end of the impeller rotating shaft extends into the inner cavity of the housing of the water jet propulsion pump, the output end of the impeller rotating shaft passes through the thrust bearing and the deep groove ball bearing fixed in the bearing block, and the impeller rotating shaft at the water inlet of the housing of the water jet propulsion pump is fixed with the impeller which is located between the thrust bearing and the water inlet channel.
Specifically, a high-speed water spraying channel is formed between the guide vane and the nozzle.
Preferably, the impeller is made of a high-strength aluminum alloy material; therefore, the self weight of the impeller is greatly reduced, the allowable use rotating speed of the impeller is greatly improved, the size of the impeller is further optimized, and finally the high-power water jet propulsion pump with the high rotating speed and the small diameter impeller is formed.
Preferably, the drive mechanism is a drive motor.
Preferably, the device further comprises a control power supply, and the control power supply is connected with the driving motor. The power is supplied to the driving motor through the control power supply, so that the driving motor drives the impeller rotating shaft to rotate.
The water surface power flat plate provided by the application comprises the light high-thrust small water jet propulsion pump.
The small water jet propulsion pump with light weight and high thrust is a novel special power device, is different from a common propeller propulsion mode, and the thrust of water jet propulsion is obtained by the reaction force of water flow sprayed out of a propulsion water pump, and the steering of a ship is realized by controlling a rudder and reversing equipment to distribute and change the direction of jet flow. The jet propulsion system is applied to middle and high-speed ships such as a planing boat, a wave-piercing boat, a hydrofoil boat, a hovercraft and the like, the actual water jet propulsion efficiency is improved, the hydraulic loss of a pipeline is mainly reduced, the efficiency of a propulsion pump can reach 90%, the efficiency of the pipeline can reach 70%, and the hydraulic loss of the pipeline is mainly reflected in a pump pipeline inlet, a bent pipe, a contraction pipe, a water jet and the like.
In conclusion, the water jet propulsion pump is made of high-strength aluminum alloy, on the premise of ensuring the strength, the overall weight is greatly reduced, the self weight of the impeller is reduced, the allowable use rotating speed of the impeller is greatly improved, the size of the impeller is reduced, and finally the high-power water jet propulsion pump with the high rotating speed and the small-diameter impeller is formed; the development of the power surfboard towards the direction of light weight and small volume is effectively guaranteed.
Claims (7)
1. A small water jet propulsion pump with light weight and high thrust is characterized by comprising a water jet propulsion pump shell, an impeller rotating shaft, a nozzle, a guide vane and an impeller, wherein one end of the impeller rotating shaft extends into an inner cavity of the water jet propulsion pump shell, the other end of the impeller rotating shaft is connected with a driving mechanism, the water jet propulsion pump shell is sequentially provided with the impeller and the guide vane from front to back, and the impeller is arranged on the impeller rotating shaft; the front end of the water jet propulsion pump shell is communicated with the water inlet channel, and the rear end of the water jet propulsion pump shell is provided with a nozzle; the water jet propulsion pump shell is made of high-strength aluminum alloy materials.
2. The small water jet propulsion pump with light weight and high thrust as claimed in claim 1, wherein one end of the impeller rotating shaft is fixed on a thrust bearing and a deep groove ball bearing in a bearing seat.
3. The lightweight high thrust compact jet propulsion pump as claimed in claim 1, wherein a high velocity jet flow channel is formed between said guide vanes and the jet nozzle.
4. The small water jet propulsion pump with light weight and high thrust as claimed in claim 1, wherein the impeller is made of a high-strength aluminum alloy material.
5. The lightweight high thrust compact water jet propulsion pump as claimed in claim 1, wherein said drive mechanism is a drive motor.
6. The lightweight high thrust compact water jet propulsion pump according to claim 5, further comprising a control power source connected to said drive motor.
7. A water surface power plate comprising a lightweight high thrust compact jet propulsion pump according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022922216.7U CN214036251U (en) | 2020-12-09 | 2020-12-09 | Small water jet propulsion pump with light weight and high thrust and water surface power flat plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022922216.7U CN214036251U (en) | 2020-12-09 | 2020-12-09 | Small water jet propulsion pump with light weight and high thrust and water surface power flat plate |
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| CN214036251U true CN214036251U (en) | 2021-08-24 |
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| CN202022922216.7U Active CN214036251U (en) | 2020-12-09 | 2020-12-09 | Small water jet propulsion pump with light weight and high thrust and water surface power flat plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115195983A (en) * | 2022-07-13 | 2022-10-18 | 扬州大学 | Hydrodynamic noise chaos characteristic analysis-based water jet propulsion water inlet suction vortex identification method |
-
2020
- 2020-12-09 CN CN202022922216.7U patent/CN214036251U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115195983A (en) * | 2022-07-13 | 2022-10-18 | 扬州大学 | Hydrodynamic noise chaos characteristic analysis-based water jet propulsion water inlet suction vortex identification method |
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