CN209776774U - Self-coupling ship submersible pump jet propulsion device replacing propeller - Google Patents
Self-coupling ship submersible pump jet propulsion device replacing propeller Download PDFInfo
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- CN209776774U CN209776774U CN201920503428.6U CN201920503428U CN209776774U CN 209776774 U CN209776774 U CN 209776774U CN 201920503428 U CN201920503428 U CN 201920503428U CN 209776774 U CN209776774 U CN 209776774U
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Abstract
the utility model belongs to the technical field of submarines, in particular to a self-coupling ship submersible pump jet propulsion device for replacing a propeller, wherein an impeller stator is fixedly connected to the inner wall of an outer shell, a protective sleeve is fixedly connected to the other end of the impeller stator, an intermediate shaft is arranged in the protective sleeve, a rotary sleeve is also sleeved on the intermediate shaft and is fixedly connected with the intermediate shaft, an impeller rotor is fixedly arranged on the outer surface of the rotary sleeve, and the rotary sleeve and the impeller rotor are both positioned in the outer shell; the improved motor is characterized in that a casing is further arranged outside the intermediate shaft, a first cavity and a second cavity are arranged between the casing and the intermediate shaft, a first bearing is arranged in the first cavity, a second bearing is arranged in the second cavity, a coil stator is fixedly arranged on the inner wall of the casing, a coil rotor is fixedly arranged on the outer surface of the intermediate shaft, and the coil stator and the coil rotor are matched.
Description
Technical Field
The utility model belongs to the technical field of the submarine, especially, relate to a substitute self coupling formula boats and ships submersible pump of screw spout advancing device.
background
The submarine has strong attacking power and unique concealment and maneuverability, can submerge for a long time far away from a base, has the capability of cooperatively working with other forces of naval formation and executing various combat tasks, and is always the focus of intense competition of all naval countries in the world. However, once the submarine is exposed, the inherent advantages of the submarine are lost, the submarine is easy to be tracked and attacked by enemies, and the survival capability of the submarine is greatly reduced. With the rapid development of sound detection technology, how to reduce radiation noise and the probability of being found by an enemy sonar has become a key research topic of nuclear submarine technology.
The conventional submarine adopts a propulsion technology, namely, a shaft with blades is pushed to rotate by mechanical kinetic energy of a steam engine, the blades supply water with a thrust force due to the rotation of the shaft, the submarine is pushed to advance by a reaction force of the water, and in the process, the rotation of the shaft generates huge noise, so that the hidden property of the submarine is difficult.
The noise of the propeller is one of the main noise sources of the nuclear submarine, is exposed outside the submarine body and can easily radiate noise into water, the low-frequency line spectrum noise of the propeller has low frequency and high intensity at low navigational speed and can be radiated to a far sea area, the rotating noise is enhanced along with the navigational speed at medium and high navigational speeds and gradually exceeds the low-frequency line spectrum to become the main noise of the submarine, once the blades of the propeller generate cavitation bubbles, the noise is greatly enhanced, and the noise of the propeller becomes the main noise of the submarine. Therefore, reducing the noise of the nuclear submarine must first reduce the noise of the propeller.
Disclosure of Invention
The utility model provides a replace self coupling formula boats and ships dive pump of screw and spout advancing device to solve the big problem of traditional screw noise that proposes in the above-mentioned background art.
The utility model provides a technical problem adopt following technical scheme to realize:
A self-coupling ship submersible pump jet propulsion device replacing a propeller comprises an outer shell, wherein the outer shell is cylindrical, a first connecting flange is arranged on one side of the outer shell, a second connecting flange is arranged on the other side of the outer shell, the first connecting flange is connected with the outer shell through a first bolt, and a connecting sheet is further arranged on the outer surface of the outer shell;
the impeller rotor protection device comprises an outer shell, an impeller stator, a protection sleeve, a rotating sleeve, an impeller rotor, a rotating sleeve, a protective sleeve and a shell, wherein the inner wall of the outer shell is fixedly connected with the impeller stator, the other end of the impeller stator is fixedly connected with the protective sleeve, the protective sleeve is internally provided with an intermediate shaft, the intermediate shaft is also sleeved with the rotating sleeve, the rotating sleeve is fixedly connected with the intermediate shaft, the outer surface of the rotating sleeve is fixedly provided with;
a shell is further arranged outside the intermediate shaft, a first cavity and a second cavity are arranged between the shell and the intermediate shaft, a first bearing is arranged in the first cavity, a second bearing is arranged in the second cavity, a coil stator is fixedly arranged on the inner wall of the shell, a coil rotor is fixedly arranged on the outer surface of the intermediate shaft, and the coil stator and the coil rotor are matched;
The outer shell inner wall fixed mounting has the fixed plate, be equipped with the fixed orifices in the middle of the fixed plate, the jackshaft is located the fixed orifices, fixed mounting has the fixed section of thick bamboo of toper between fixed plate and the casing, the casing outside is equipped with overflows a section of thick bamboo, it is equipped with third flange to overflow a section of thick bamboo one side, and the opposite side is equipped with fourth flange, second flange, third flange pass through second bolted connection.
The number of the impeller stators is 5-8.
The number of the impeller rotors is 5-8.
The number of the connecting pieces is 10-15.
The first cavity and the second cavity are symmetrically arranged.
the utility model has the advantages that:
The technical scheme is that the full through-flow submersible axial-flow pump integrates a motor rotor and a water pump impeller, has the characteristics of simple structure, high device efficiency, light weight, convenience and quickness in installation and strong overload capacity, realizes the saving of 40-50% of manufacturing material consumption through the innovative design of structure and theory, and improves the device efficiency by more than 10% through improving and applying the design method for reducing the water mill loss and improving the efficiency.
The following advantages can also be realized through the technical scheme:
The propulsion efficiency of the pump jet propulsion submarine is improved by the aid of the pump jet propulsion impeller, the impeller stator of the pump jet propulsion propeller can reduce the rotation energy loss in the wake flow of the propeller and increase effective propulsion energy, and the outer shell of the pump jet propulsion propeller can reduce the energy loss of an impeller rotor and increase effective thrust.
2 the radiation noise is low, at first the impeller rotor of pump jet propeller is inside the shell body, the shell body can play shielding and sound absorption effect, in addition, the impeller stator that is located the place ahead can make the rotor flow field of advancing more even by the impeller to reduce impeller rotor's pulsating force, reduce the line spectrum radiation noise of propeller, the diameter of pump jet propeller impeller rotor is generally less than the screw again, under the same rotational speed, the rotatory linear velocity of pump jet propeller paddle is lower, can reduce the rotatory noise of propeller.
the 3 critical navigational speed is high, the critical navigational speed of the submarine refers to the navigational speed at which the propeller does not generate cavitation bubbles under a certain submarine depth, and the pump jet propeller adopts the speed reduction outer shell and the front impeller stator to ensure that the speed of an inflow field at the position of the impeller rotor blade is relatively low and more uniform, thereby effectively delaying the generation of blade tip vortex cavitation bubbles and blade cavitation bubbles and improving the low noise navigational speed of the submarine.
Drawings
Fig. 1 is a schematic structural view of the present invention;
In the figure: 1-outer shell, 2-first connecting flange, 3-second connecting flange, 4-first bolt, 5-second bolt, 6-impeller stator, 7-protective sleeve, 8-middle shaft, 9-rotating sleeve, 10-impeller rotor, 11-connecting sheet, 12-machine shell, 13-first cavity, 14-second cavity, 15-first bearing, 16-second bearing, 17-coil stator, 18-coil rotor, 19-fixing plate, 20-fixing hole, 21-conical fixing cylinder, 22-overflowing cylinder, 23-third connecting flange and 24-fourth connecting flange.
Detailed Description
A self-coupling ship submersible pump jet propulsion device replacing a propeller comprises an outer shell 1, wherein the outer shell 1 is cylindrical, a first connecting flange 2 is arranged on one side of the outer shell 1, a second connecting flange 3 is arranged on the other side of the outer shell 1, the first connecting flange 2 is connected with the outer shell 1 through a first bolt 4, and a connecting sheet 11 is further arranged on the outer surface of the outer shell 1;
The inner wall of the outer shell 1 is fixedly connected with an impeller stator 6, the other end of the impeller stator 6 is fixedly connected with a protective sleeve 7, an intermediate shaft 8 is arranged in the protective sleeve 7, a rotating sleeve 9 is further sleeved on the intermediate shaft 8, the rotating sleeve 9 is fixedly connected with the intermediate shaft 8, an impeller rotor 10 is fixedly arranged on the outer surface of the rotating sleeve 9, and the rotating sleeve 9 and the impeller rotor 10 are both positioned in the outer shell 1;
A shell 12 is further arranged outside the intermediate shaft 8, a first cavity 13 and a second cavity 14 are arranged between the shell 12 and the intermediate shaft 8, a first bearing 15 is arranged in the first cavity 13, a second bearing 16 is arranged in the second cavity 14, a coil stator 17 is fixedly arranged on the inner wall of the shell 12, a coil rotor 18 is fixedly arranged on the outer surface of the intermediate shaft 8, and the coil stator 17 is matched with the coil rotor 18;
The inner wall of the outer shell 1 is fixedly provided with a fixing plate 19, a fixing hole 20 is formed in the middle of the fixing plate 19, the intermediate shaft 8 is located in the fixing hole 20, a conical fixing barrel 21 is fixedly arranged between the fixing plate 19 and the shell 12, an overflowing barrel 22 is arranged outside the shell 12, a third connecting flange 23 is arranged on one side of the overflowing barrel 22, a fourth connecting flange 24 is arranged on the other side of the overflowing barrel 22, and the second connecting flange 3 and the third connecting flange 23 are connected through a second bolt 5.
The number of impeller stators 17 is 5-8.
The number of impeller rotors 18 is 5-8.
The number of the connecting pieces 11 is 10-15.
The first cavity 13 and the second cavity 14 are symmetrically arranged.
the implementation process comprises the following steps:
After the power is switched on, the intermediate shaft is rotated due to the matching action of the coil stator and the coil rotor, and then the impeller rotor is driven to rotate, wherein the impeller rotor is a rotary impeller similar to a propeller, and thrust is generated through interaction with water flow to push the submarine to reach the required navigational speed.
The above detailed description of the embodiments of the present invention is only the preferred embodiments of the present invention, and the embodiments of the present invention should not be considered as limiting the scope of the present invention, and all the equivalent changes and improvements made in the application scope of the present invention should still belong to the scope of the present invention.
Claims (5)
1. The utility model provides a replace self coupling formula boats and ships dive pump of screw and spout advancing device which characterized in that:
the connecting device comprises an outer shell, wherein the outer shell is cylindrical, a first connecting flange is arranged on one side of the outer shell, a second connecting flange is arranged on the other side of the outer shell, the first connecting flange is connected with the outer shell through a first bolt, and a connecting sheet is further arranged on the outer surface of the outer shell;
the impeller rotor protection device comprises an outer shell, an impeller stator, a protection sleeve, a rotating sleeve, an impeller rotor, a rotating sleeve, a protective sleeve and a shell, wherein the inner wall of the outer shell is fixedly connected with the impeller stator, the other end of the impeller stator is fixedly connected with the protective sleeve, the protective sleeve is internally provided with an intermediate shaft, the intermediate shaft is also sleeved with the rotating sleeve, the rotating sleeve is fixedly connected with the intermediate shaft, the outer surface of the rotating sleeve is fixedly provided with;
a shell is further arranged outside the intermediate shaft, a first cavity and a second cavity are arranged between the shell and the intermediate shaft, a first bearing is arranged in the first cavity, a second bearing is arranged in the second cavity, a coil stator is fixedly arranged on the inner wall of the shell, a coil rotor is fixedly arranged on the outer surface of the intermediate shaft, and the coil stator and the coil rotor are matched;
the outer shell inner wall fixed mounting has the fixed plate, be equipped with the fixed orifices in the middle of the fixed plate, the jackshaft is located the fixed orifices, fixed mounting has the fixed section of thick bamboo of toper between fixed plate and the casing, the casing outside is equipped with overflows a section of thick bamboo, it is equipped with third flange to overflow a section of thick bamboo one side, and the opposite side is equipped with fourth flange, second flange, third flange pass through second bolted connection.
2. the propeller-substituted self-coupled marine submersible pump jet propulsion unit according to claim 1, wherein: the number of the impeller stators is 5-8.
3. The propeller-substituted self-coupled marine submersible pump jet propulsion unit according to claim 2, wherein: the number of the impeller rotors is 5-8.
4. The propeller-substituted self-coupled marine submersible pump jet propulsion unit according to claim 3, wherein: the number of the connecting pieces is 10-15.
5. The propeller-substituted self-coupled marine submersible pump jet propulsion unit according to claim 4, wherein: the first cavity and the second cavity are symmetrically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920503428.6U CN209776774U (en) | 2019-04-15 | 2019-04-15 | Self-coupling ship submersible pump jet propulsion device replacing propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920503428.6U CN209776774U (en) | 2019-04-15 | 2019-04-15 | Self-coupling ship submersible pump jet propulsion device replacing propeller |
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| Publication Number | Publication Date |
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| CN209776774U true CN209776774U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920503428.6U Active CN209776774U (en) | 2019-04-15 | 2019-04-15 | Self-coupling ship submersible pump jet propulsion device replacing propeller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109850103A (en) * | 2019-04-15 | 2019-06-07 | 天津格瓦克水泵节能科技有限公司 | A kind of autocoupling type ship submersible pump spray propulsion device substituting propeller |
-
2019
- 2019-04-15 CN CN201920503428.6U patent/CN209776774U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109850103A (en) * | 2019-04-15 | 2019-06-07 | 天津格瓦克水泵节能科技有限公司 | A kind of autocoupling type ship submersible pump spray propulsion device substituting propeller |
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