CN114013619A - Deep sea magnetic coupling isolation oil compensation propeller - Google Patents
Deep sea magnetic coupling isolation oil compensation propeller Download PDFInfo
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- CN114013619A CN114013619A CN202111326604.1A CN202111326604A CN114013619A CN 114013619 A CN114013619 A CN 114013619A CN 202111326604 A CN202111326604 A CN 202111326604A CN 114013619 A CN114013619 A CN 114013619A
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- deep sea
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- propeller
- assembly
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
- B63H23/24—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
- H02K5/1282—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs the partition wall in the air-gap being non cylindrical
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
- H02K5/1285—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs of the submersible type
Abstract
The invention provides a deep sea magnetic coupling isolation oil compensation propeller. The invention comprises a motor drive control system and a rear end cover pressure compensation system, wherein the rear end cover pressure compensation system is connected with the motor drive control system through a motor magnetic coupling system; the motor magnetic coupling system comprises an isolation sleeve, a rotor propeller assembly and a stator assembly, wherein the isolation sleeve comprises a rotary drum and a rotating shaft connected to the outer part of the rotary drum; the rotor propeller assembly is sleeved outside the rotating shaft, one side of the rotor propeller assembly is connected with the rear end cover pressure compensation system, the other side of the rotor propeller assembly is connected with the rotating drum, and the other side of the rotating drum is connected with the motor drive control system; the stator assembly is arranged in the rotary drum and is connected with the motor drive control system. The rotor propeller assembly and the stator assembly are axially arranged, and the stator assembly and the rotor propeller assembly are isolated by the isolating sleeve; the structure is simple, the sealing effect is good, and the requirement of long-time reliable work of the deep sea vehicle is met.
Description
Technical Field
The invention relates to the technical field of underwater power propulsion equipment, in particular to a deep sea magnetic coupling isolation oil compensation propeller.
Background
Internationally, sea areas with depths greater than 1000m are often referred to as deep seas. Different from other fields of the ocean, the research threshold of the deep sea field is higher, the deep sea field is seriously dependent on the development of the deep sea engineering technology, and some countries have utilized equipment advantages to develop deep sea scientific research work and have made great breakthrough and discovery. In recent years, with the development of the strong national strategy of the ocean in China, the urgent needs in the fields of deep sea observation, rescue and salvage, underwater engineering maintenance, ocean oil development, deep sea sulfide, manganese nodule, cobalt-rich crust detection and the like, various deep sea aircrafts with different types and different functions are developed.
The deep sea vehicle can freely navigate underwater, and the key point is a propeller. The propeller provides propulsion power for the deep sea vehicle, and is one of the core power components of the deep sea vehicle. The electric thruster has the advantages of good control performance, high reliability, simple equipment, convenient maintenance and the like, and is widely applied to the field of deep sea aircrafts.
The core problem to be solved when the electric propeller is applied to a deep sea environment is dynamic sealing, and the method for solving the dynamic sealing of the electric propeller at present mainly comprises the steps of adding a magnetic coupler, and converting the dynamic sealing into static sealing by transmitting torque through magnetic force; the motor and the magnetic coupler in the sealing structure are separated, the isolation sleeve of the magnetic coupler is seriously abraded, so that the sealing is invalid, the isolation sleeve needs to be replaced regularly, the continuous working time is influenced, a reliable power source cannot be provided for the long-time work of the deep sea vehicle, and the requirement of the long-time reliable work of the deep sea vehicle cannot be met; moreover, when the magnetic coupler in the sealing structure rotates in the compensation oil, the friction force is large, large oil abrasion loss and eddy current loss are generated, the energy conversion efficiency is reduced, and the use cost is high.
Disclosure of Invention
The invention aims to provide a deep sea magnetic coupling isolation oil compensation propeller, and aims to solve the problem that the propeller added with a magnetic coupler in the prior art cannot meet the requirement of long-time reliable work of a deep sea aircraft due to serious abrasion, sealing failure and low energy conversion efficiency.
In order to solve the technical problem, the technical scheme of the invention is realized as follows:
the invention relates to a deep sea magnetic coupling isolation oil compensation propeller which comprises a motor drive control system and a rear end cover pressure compensation system; a driver is arranged in the motor drive control system; the rear end cover pressure compensation system is connected with the motor drive control system through a motor magnetic coupling system; the motor magnetic coupling system comprises an isolation sleeve, a rotor propeller assembly and a stator assembly; the isolating sleeve comprises a rotating shaft and a rotating drum connected to one end of the rotating shaft, and the rotating shaft is positioned outside the rotating drum; the rotor propeller assembly is sleeved outside the rotating shaft, one side of the rotor propeller assembly is connected with the rear end cover pressure compensation system, the other side of the rotor propeller assembly is connected with the rotating drum, and the other side of the rotating drum is connected with the motor drive control system; the stator assembly is disposed inside the drum, and the stator assembly is connected to the driver.
The rotor propeller assembly and the stator assembly are axially arranged, and the stator assembly and the rotor propeller assembly are isolated by the isolating sleeve, so that the effect of isolation and sealing is achieved; the driver controls the stator assembly to be powered on/off to generate a rotating magnetic field at a certain speed, and the magnetic field acts on the rotor propeller assembly through the isolation sleeve to drive the rotor propeller assembly to rotate so as to generate driving force. The motor stator and the magnetic coupler inner rotor are designed into a whole, the magnetic coupler inner rotor is cancelled, and the stator assembly is directly adopted to generate a rotating magnetic field to drive the rotor propeller assembly to rotate; the motor rotor and the magnetic coupler outer rotor are designed into a whole, the interior of the rotor propeller assembly is filled with compensation oil, the interior of the stator assembly is filled with capacitor oil, and no rotating part is arranged in the rotor propeller assembly, so that the oil abrasion loss caused by the rotation of the impeller is reduced; the deep sea magnetic coupling isolation oil compensation propeller is simple in structure, low in cost and long in service life of the isolation sleeve, prolongs the service life and reliability of the propeller, ensures long-time reliable operation of the propeller, has high energy conversion efficiency, has wide application prospect in the field of deep sea vehicles, mainly provides power for deep sea manned submersible vehicles, autonomous unmanned submersible vehicles, cable controlled submersible vehicles and other deep sea vehicles, certainly improves the range and residence time of the vehicle, and provides powerful support for the deep sea vehicle to cluster operation and remote control.
As a preferred embodiment, the rotor-propeller assembly comprises a propeller, a rotor yoke and magnetic steel; the propeller is positioned at the outer side, and blades are arranged on the propeller; the rotor yoke comprises a sleeve and an end part arranged at one end of the sleeve, the propeller is sleeved outside the sleeve, and a groove is formed in the end part; the magnetic steel is arranged in the groove. The rotor propeller assembly is rotationally connected with the isolation sleeve, and the propeller is fixed outside the rotor yoke; the rotor yoke is provided with a convex end part, the end part is used for mounting magnetic steel, and the end part is matched with the sleeve, so that the outer surface of the whole rotor propeller assembly is on the same cylindrical surface; the arrangement of the groove facilitates the installation of the magnetic steel, and the magnetic steel is adhered to the groove at the end part of the rotor yoke by epoxy resin adhesive under the normal condition; the magnetic steel is neodymium iron boron magnetic steel, in order to prevent seawater corrosion and magnetic steel cracking, a layer of epoxy resin protective layer is generally required to be uniformly coated on the outer side of the neodymium iron boron magnetic steel, and meanwhile, in order to prevent seawater corrosion and obtain a rotor yoke with good magnetic conductivity, the rotor yoke is machined and manufactured by using SUS 430.
As a preferred embodiment, the sleeve is provided with a fixing groove at the outside thereof, a flat key is arranged in the fixing groove, and the propeller is sleeved outside the sleeve through the flat key. The propeller is fixed on the outer side of the sleeve of the rotor yoke through a flat key, and the connecting structure is simple and convenient to operate. The deep sea magnetic coupling isolation oil compensation propeller adopts a pressure compensation and compression-resistant structural design, can overcome the high-pressure, high-viscosity and low-temperature environment of deep sea, can ensure that deep sea aircrafts, torpedoes and the like can reliably work underwater for a long time, can provide a reliable power source for the long-time work of the deep sea aircrafts, can improve the underwater work time of the aircrafts, reduces the maintenance frequency, and provides reliable guarantee for the development trend of the deep sea aircrafts towards long voyage, clustering, automatic operation and the like.
As a preferred embodiment, a support bearing is disposed outside the rotating shaft, and the sleeve is sleeved outside the rotating shaft through the support bearing. The rotor propeller assembly is rotatably connected with the isolation sleeve through the support bearing, and the rotor propeller assembly and the isolation sleeve which are connected through the support bearing can freely rotate, so that the use effect is good; in order to prevent seawater from corroding the support bearing and simultaneously improve the service life of the support bearing, compensation oil is filled in an inner cavity of the rotor yoke and plays a role in lubricating the support bearing, so the compensation oil is also called as lubricating oil; meanwhile, the compensation oil can balance the pressure of external seawater and prevent the seawater from entering the rotor propeller assembly. One end of the isolating sleeve is of a cylindrical structure, the other end of the isolating sleeve is of a shaft structure, the thickness of the cylindrical structure is of a thin-wall structure, and the stator assembly is encapsulated inside the cylindrical structure of the isolating sleeve by the isolating sleeve to prevent seawater from entering the isolating sleeve; in order to have good magnetic permeability and seawater corrosion resistance, the isolation sleeve is usually made of TC4 titanium alloy.
As a preferred embodiment, the sleeve is internally provided with an annular bulge, one end of the rotating shaft close to the rotating cylinder is provided with a shaft shoulder, one end of the rotating shaft far away from the rotating cylinder is provided with a clamping groove, and an E-shaped buckle is arranged in the clamping groove; the support bearing is two pairs, the bellied both sides of annular all are equipped with a pair of support bearing, wherein, a pair of support bearing set up in the annular protruding with between the shaft shoulder, another pair support bearing set up in the annular protruding with between the E type buckle, the E type buckle pass through D type gasket with the support bearing butt. The two pairs of supporting bearings increase the connecting area of the rotor propeller assembly and the isolating sleeve, so that the rotor propeller assembly is firmly connected, is uniformly stressed and has a good rotating effect; under the mating reaction of shaft shoulder, annular bulge and E type buckle and draw-in groove, realized the firm fixed of support bearing between rotor propeller assembly and spacer sleeve to realized the firm connection of rotor propeller assembly and spacer sleeve, prevented that rotor propeller assembly from removing along the axis of spacer sleeve, simultaneously, guaranteed that rotor propeller assembly can rotate smoothly round the pivot of spacer sleeve.
As a preferred embodiment, the rear end cap pressure compensation system comprises a compensation diaphragm and a gland; the compensation film is arranged at the stern part of the rotor propeller assembly, and the section of the compensation film along the axial direction is U-shaped; the gland set up in the outside of compensation membrane, the inside of gland be equipped with the compensation groove of compensation membrane looks adaptation. In order to prevent the compensation oil in the inner cavity of the rotor yoke from leaking and balance the external seawater pressure, a rear end cover pressure compensation system is arranged at the stern part of the rotor propeller assembly, and the compensation oil is well kept in the inner cavity of the rotor yoke by a compensation film so as to avoid leakage; the compensation film with the shape can store more compensation oil, and fully ensures the effectiveness of the compensation oil on the lubrication of the support bearing; the gland is used for fixing the compensation film and providing sufficient protection for the compensation film, and the rear end cover pressure compensation system performs pressure compensation while providing lubrication for the support bearing.
In a preferred embodiment, the rotor propeller assembly is provided with a rotary oil seal on a side close to the rotary drum, the rotary oil seal is sealed outside the rotary shaft, and the rotary oil seal is used for preventing compensation oil from leaking from the front end of the rotor propeller assembly. The rotary oil seal is also called as a framework oil seal and is arranged at the front end of the rotor propeller assembly, and particularly, the rotary oil seal is sleeved on a shaft shoulder of the rotating shaft and is used for preventing compensation oil from leaking from the front end of the rotor propeller assembly; under the action of a compensation film and a rotary oil seal in a rear end cover pressure compensation system, the compensation oil in the inner cavity of the rotor yoke is well sealed, leakage is avoided, and the pressure of external seawater is well balanced.
As a preferred embodiment, the stator assembly includes a stator yoke and a stator coil; the stator yoke comprises an end seat and a plurality of stator teeth arranged on one side of the end seat, and the stator teeth are uniformly arranged at intervals along the circumferential direction of the end seat; the stator coil is wound on the stator teeth. The stator coil is uniformly wound on the stator teeth of the stator yoke along the axial direction, and the driver energizes the stator coil according to a certain rule, so that a rotating magnetic field is generated.
In a preferred embodiment, the end seat is provided with a clamping groove, a dry-wet separation joint is arranged in the clamping groove, and the stator coil is connected with the driver through the dry-wet separation joint. The wet separation joint connection does is in the joint inslot, and one side in joint groove is equipped with the through-hole that sets up along the end socket axis direction, and stator coil's end passes on the through-hole is connected to the wet separation joint of doing of joint inslot, and the other end of wet separation joint does is connected with the driver, realizes making stator coil and driver be connected to accomplish the driver and give stator coil circular telegram or cut off the power supply.
As a preferred embodiment, the motor drive control system includes a housing and an end cap; a chamber is arranged in the shell, the driver is positioned in the chamber, and one end of the shell is connected with the rotary drum; the end cover is connected with the other end of the shell, a watertight joint is arranged on the end cover, and a watertight cable is further connected to the watertight joint. The shell adopts a pressure-resistant design, so that the deep sea pressure resistance requirement can be met; the chamber inside the housing corresponds to a driver compartment, and each electronic component inside the driver compartment operates in a normal pressure environment. The driver adopts the general driver of no hall sensor type, detects stator coil back electromotive force through voltage sensor, calculates the position of magnet steel among the rotor propeller assembly, and then control stator coil circular telegram commutation. The watertight cable is installed on the end cover of the motor drive control system and provides an external power supply for the driver. In general, a sealing groove is arranged in the circumferential direction of the shell, an O-shaped sealing ring is arranged in the sealing groove, and the rotary drum of the isolating membrane is in sealing connection with the shell through the O-shaped sealing ring; similarly, a sealing groove is also formed in the circumferential direction of the end cover, an O-shaped sealing ring is also arranged in the sealing groove, and the shell and the end cover are also in sealing connection through the O-shaped sealing ring; and secondly, a sealing groove is also formed in the circumferential direction of the watertight connector, an O-shaped sealing ring is also arranged in the sealing groove, and the watertight connector and the end cover are also in sealing connection through the O-shaped sealing ring.
The shell is provided with an end head at the joint of the shell and the rotary drum of the isolating membrane, and the end head is used for separating a chamber formed by the rotary drum of the isolating membrane from a chamber formed by the shell; capacitor oil is filled in a cavity formed by the rotary drum and used for balancing the pressure of external seawater, the cavity formed by the shell is a driver cabin, and the cavity formed by the shell is used for installing electronic elements such as a driver and the like; the end is provided with a mounting groove, and the dry-wet separation joint is mounted in the mounting groove. In general, a chamber formed by the rotary drum is also connected with a compensation joint and is connected with an external compensation hose through the compensation joint, the other end of the compensation hose is sealed and isolated from seawater through a plug, and the external seawater pressure is balanced through the deformation of the compensation hose; specifically, the compensation joint is arranged on the rotary drum of the isolating membrane, and a circulation channel is arranged in the end head of the shell, so that the capacitor oil enters a cavity formed by the rotary drum.
Compared with the prior art, the invention has the beneficial effects that: the rotor propeller assembly and the stator assembly are axially arranged, and the stator assembly and the rotor propeller assembly are isolated by the isolating sleeve, so that the effect of isolation and sealing is achieved; the driver controls the stator assembly to be powered on/off to generate a rotating magnetic field at a certain speed, and the magnetic field acts on the rotor propeller assembly through the isolation sleeve to drive the rotor propeller assembly to rotate so as to generate driving force. The motor stator and the magnetic coupler inner rotor are designed into a whole, the magnetic coupler inner rotor is cancelled, and the stator assembly is directly adopted to generate a rotating magnetic field to drive the rotor propeller assembly to rotate; the motor rotor and the magnetic coupler outer rotor are designed into a whole, the interior of the rotor propeller assembly is filled with compensation oil, the interior of the stator assembly is filled with capacitor oil, and no rotating part is arranged in the rotor propeller assembly, so that the oil abrasion loss of the rotation of the propeller is reduced; the deep sea magnetic coupling isolation oil compensation propeller is simple in structure, low in cost and long in service life of the isolation sleeve, prolongs the service life and reliability of the propeller, ensures long-time reliable operation of the propeller, has high energy conversion efficiency, has wide application prospect in the field of deep sea vehicles, mainly provides power for deep sea manned submersible vehicles, autonomous unmanned submersible vehicles, cable controlled submersible vehicles and other deep sea vehicles, certainly improves the range and residence time of the vehicle, and provides powerful support for the deep sea vehicle to cluster operation and remote control.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or 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 drawings without creative efforts.
Fig. 1 is a schematic perspective view of an embodiment of a deep-sea magnetic coupling isolation oil compensating thruster provided by the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is an enlarged view of the gland of FIG. 2;
FIG. 4 is an enlarged view of the structure of the compensation film of FIG. 2;
FIG. 5 is a schematic perspective view of the compensation film of FIG. 4;
FIG. 6 is a schematic view of a connection structure of the rear end cover pressure compensation system and the rotor propeller assembly of FIG. 1;
FIG. 7 is an enlarged schematic view of the rotor-propeller assembly of FIG. 2;
FIG. 8 is an enlarged view of the rotor yoke of FIG. 7;
FIG. 9 is a schematic view of the connection structure of the rotor-propeller assembly and the isolation diaphragm of FIG. 2;
FIG. 10 is an enlarged view of the structure of the isolation diaphragm of FIG. 9;
FIG. 11 is a schematic perspective view of the isolation diaphragm of FIG. 10;
FIG. 12 is a schematic perspective view of the stator assembly of FIG. 2;
fig. 13 is a perspective view of the stator yoke of fig. 12;
FIG. 14 is a schematic view of the connection structure of the isolation diaphragm, the stator assembly and the motor drive control system of FIG. 2;
in the figure: 10-a rear end cap pressure compensation system; 11-a compensation film; 12-a gland; 20-a rotor propeller assembly; 21-a propeller; 22-rotor yoke; 221-a sleeve; 222-end portion; 223-fixed groove; 224-a groove; 225-annular projection; 23-magnetic steel; 24-flat bond; 25-a support bearing; 26-rotating oil seal; a 27-E type buckle; 28-D type gasket; 30-a barrier film; 31-a rotating shaft; 32-a rotating drum; 33-shaft shoulder; 34-a card slot; 35-compensation joint; 36-a compensation hose; 40-a motor drive control system; 41-a driver; 42-a housing; 43-end cap; 44-watertight joints; 45-dry-wet separation joint; 46-a first O-ring seal; 47-second O-ring seal; 48-third O-ring seal; 50-a stator assembly; 51-stator yoke; 52-stator coils; 511-end seat; 512-stator teeth.
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.
Referring to the attached drawings 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 and 14, the invention provides a deep sea magnetic coupling isolation oil compensation propeller which mainly provides propulsion for deep sea manned submersible vehicles, autonomous unmanned submersible vehicles, cable controlled submersible vehicles and other deep sea vehicles. The deep sea magnetic coupling isolation oil compensation propeller comprises a motor drive control system 40 and a rear end cover pressure compensation system 10; a driver 41 is arranged in the motor drive control system 40, and the motor drive control system 40 provides electric power through an external power supply; the rear end cover pressure compensation system 10 is connected with the motor drive control system 40 through a motor magnetic coupling system; the motor magnetic coupling system comprises an isolation sleeve 30, a rotor propeller assembly 20 and a stator assembly 50; the isolation sleeve 30 comprises a rotating shaft 31 and a rotating drum 32 connected to one end of the rotating shaft 31, wherein the rotating shaft 31 is positioned outside the rotating drum 32; the rotor propeller assembly 20 is sleeved outside the rotating shaft 31, one side of the rotor propeller assembly 20 is connected with the rear end cover pressure compensation system 10, the other side of the rotor propeller assembly 20 is connected with the rotating cylinder 32, and the other side of the rotating cylinder 32 is connected with the motor drive control system 40; the stator assembly 50 is disposed inside the drum 32, and the stator assembly 50 is connected to the driver 41. The rotor propeller assembly 20 and the stator assembly 50 are axially arranged, and the stator assembly 50 and the rotor propeller assembly 20 are isolated by the isolation sleeve 30, so that the effect of isolation and sealing is achieved; the driver 41 controls the stator assembly 50 to be powered on/off to generate a rotating magnetic field at a certain speed, and the magnetic field acts on the rotor-propeller assembly 20 through the isolation sleeve 30 to drive the rotor-propeller assembly 20 to rotate, so as to generate driving force.
Referring to fig. 1, 2, 6, 7, 8 and 9, as a preferred embodiment, a rotor-propeller assembly 20 includes a propeller 21, a rotor yoke 22 and magnetic steel 23; the propeller 21 is positioned at the outer side, blades are arranged on the propeller 21, and the propeller 21 rotates to generate driving force; the rotor yoke 22 comprises a sleeve 221 and an end 222 arranged at one end of the sleeve 221, the propeller 21 is sleeved outside the sleeve 221, and a groove 224 is arranged on the end 222; the magnetic steel 23 is arranged in the groove 224. The rotor propeller assembly 20 is rotationally connected with the isolation sleeve 30, the propeller 21 is fixed outside the rotor yoke 22, and the rotor yoke 22 drives the propeller 21 to rotate; the rotor yoke 22 is provided with a protruding end 222, and the end 222 is used for mounting the magnetic steel 23; the propellers 21 are arranged on the opposite concave positions of the rotor yoke 22, and the matching of the end part 222 and the sleeve 221 ensures that the outer surfaces of the whole rotor propeller assembly 20 are on the same cylindrical surface; the arrangement of the groove 224 facilitates the installation of the magnetic steel 23, and in general, the magnetic steel 23 is adhered to the groove 224 of the end 222 of the rotor yoke 22 by epoxy resin; magnet steel 23 is neodymium iron boron magnet steel 23, in order to prevent sea water corrosion and magnet steel 23 fracture, generally need evenly coat one deck epoxy protective layer in neodymium iron boron magnet steel 23 outside, simultaneously, in order to prevent sea water corrosion and obtain rotor yoke 22 that has good magnetic permeability, rotor yoke 22 uses SUS430 machine tooling manufacturing. Further, a fixing groove 223 is formed in the rotor yoke 22 outside the sleeve 221, a flat key 24 is arranged in the fixing groove 223, and the propeller 21 is sleeved outside the sleeve 221 through the flat key 24. The propeller 21 is fixed on the outer side of the sleeve 221 of the rotor yoke 22 through the flat key 24, and the connection structure is simple and convenient to operate. The deep sea magnetic coupling isolation oil compensation propeller adopts a pressure compensation and compression-resistant structural design, can overcome the high-pressure, high-viscosity and low-temperature environment of deep sea, can ensure that deep sea aircrafts, torpedoes and the like can reliably work underwater for a long time, can provide a reliable power source for the long-time work of the deep sea aircrafts, can improve the underwater work time of the aircrafts, reduces the maintenance frequency, and provides reliable guarantee for the development trend of the deep sea aircrafts towards long voyage, clustering, automatic operation and the like.
Referring to fig. 2, 7, 8, 9, 10 and 11, in some preferred embodiments, the isolation diaphragm 30 is provided with a support bearing 25 at the outer portion of the rotating shaft 31, and the sleeve 221 of the rotor yoke 22 is sleeved at the outer portion of the rotating shaft 31 through the support bearing 25. The rotor propeller assembly 20 is rotatably connected with the isolation sleeve 30 through the support bearing 25, and the rotor propeller assembly 20 and the isolation sleeve 30 which are connected through the support bearing 25 can freely rotate, so that the use effect is good; in order to prevent seawater from corroding the support bearing 25 and to prolong the service life of the support bearing 25, the inner cavity of the rotor yoke 22 is filled with compensation oil, and the compensation oil plays a role in lubricating the support bearing, so the compensation oil is also called as lubricating oil; at the same time, the compensation oil can also balance the pressure of the external seawater, preventing the seawater from entering the interior of the rotor-propeller assembly 20. Furthermore, an annular protrusion 225 is arranged inside the sleeve 221, a shaft shoulder 33 is arranged at one end of the rotating shaft 31 close to the rotating drum 32, a clamping groove 34 is arranged at one end of the rotating shaft 31 far away from the rotating drum 32, and an E-shaped buckle 27 is arranged in the clamping groove 34; the support bearings 25 are two pairs, a pair of support bearings 25 is arranged on both sides of the annular protrusion 225, wherein one pair of support bearings 25 is arranged between the annular protrusion 225 and the shaft shoulder 33, the other pair of support bearings 25 is arranged between the annular protrusion 225 and the E-shaped buckle 27, and the E-shaped buckle 27 is abutted to the support bearings 25 through a D-shaped gasket 28. The two pairs of supporting bearings 25 increase the connecting area of the rotor propeller assembly 20 and the isolating sleeve 30, so that the rotor propeller assembly is firmly connected, is uniformly stressed and has good rotating effect; under the cooperation of the shaft shoulder 33, the annular protrusion 225, the E-shaped buckle 27 and the clamping groove 34, the supporting bearing 25 is firmly fixed between the rotor propeller assembly 20 and the isolation sleeve 30, so that the rotor propeller assembly 20 is firmly connected with the isolation sleeve 30, the rotor propeller assembly 20 is prevented from moving along the axis of the isolation sleeve 30, and meanwhile, the rotor propeller assembly 20 is ensured to smoothly rotate around the rotating shaft 31 of the isolation sleeve 30. One end of the isolation sleeve 30 is of a cylindrical structure, the other end of the isolation sleeve is of a shaft structure, the thickness of the cylindrical structure is of a thin-wall structure, and the stator assembly 50 is packaged inside the cylindrical structure of the isolation sleeve 30 to prevent seawater from entering the isolation sleeve; in order to have good magnetic permeability and seawater corrosion resistance, the isolation sleeve 30 is usually made of TC4 titanium alloy.
Referring to fig. 1, 2, 3, 4, 5 and 6, as a preferred embodiment, the rear end cap pressure compensation system 10 includes a compensation diaphragm 11 and a gland 12; the compensation film 11 is arranged at the stern part of the rotor propeller assembly 20, and the section of the compensation film 11 along the axial direction is U-shaped; the gland 12 is arranged outside the compensation film 11, and the interior of the gland 12 is provided with a compensation groove matched with the compensation film 11. In order to prevent the compensation oil in the inner cavity of the rotor yoke 22 from leaking and balance the external seawater pressure, a rear end cover pressure compensation system 10 is arranged at the stern part of the rotor propeller assembly 20, and the compensation oil is well kept in the inner cavity of the rotor yoke 22 by a compensation film 11 to avoid leakage; the compensation film 11 with the shape can store more compensation oil, and the effectiveness of the compensation oil for lubricating the support bearing 25 is fully ensured; the gland 12 is used for fixing the compensation film 11 and providing sufficient protection for the compensation film 11, and the rear end cover pressure compensation system 10 performs pressure compensation while providing lubrication for the support bearing 25. Further, the rotor propeller assembly 20 is provided with a rotary oil seal 26 at a side close to the rotary drum 32 in the isolation film 30, the rotary oil seal 26 is sleeved outside the rotary shaft 31, and the rotary oil seal 26 is used for preventing the compensation oil from leaking from the front end of the rotor propeller assembly 20. The rotary oil seal 26 is also called a framework oil seal and is arranged at the front end of the rotor propeller assembly 20, specifically, the rotary oil seal 26 is sleeved on a shaft shoulder 33 of the rotating shaft 31, and the rotary oil seal 26 is used for preventing compensation oil from leaking from the front end of the rotor propeller assembly 20; under the action of the compensation film 11 and the rotary oil seal 26 in the rear end cover pressure compensation system 10, the compensation oil in the inner cavity of the rotor yoke 22 is well sealed, leakage is avoided, and the pressure of external seawater is well balanced.
Referring to fig. 2, 12, 13 and 14, as a preferred embodiment, a stator assembly 50 includes a stator yoke 51 and a stator coil 52; the stator yoke 51 comprises an end seat 511 and a plurality of stator teeth 512 arranged on one side of the end seat 511, wherein the stator teeth 512 are uniformly arranged at intervals along the circumferential direction of the end seat 511; the stator coil 52 is wound around the stator teeth 512. The stator coil 52 is uniformly wound on the stator teeth 512 of the stator yoke 51 in the axial direction, and the driver 41 energizes the stator coil 52 according to a certain rule, thereby generating a rotating magnetic field. Furthermore, a clamping groove is formed in an end seat 511 of the stator yoke 51, a dry-wet separation connector 45 is arranged in the clamping groove, and the stator coil 52 is connected with the driver 41 through the dry-wet separation connector 45. The dry-wet separation joint 45 is connected in the clamping groove, a through hole arranged along the axial direction of the end seat 511 is formed in one side of the clamping groove, the end head of the stator coil 52 penetrates through the through hole to be connected to the dry-wet separation joint 45 in the clamping groove, the other end of the dry-wet separation joint 45 is connected with the driver 41, the stator coil 52 is connected with the driver 41, and therefore the stator coil 52 is powered on or powered off by the driver 41.
Referring to fig. 1, 2 and 14, as a preferred embodiment, a motor drive control system 40 includes a housing 42 and an end cap 43; the interior of the housing 42 is provided with a chamber, the driver 41 is positioned in the chamber, and one end of the housing 42 is connected with the rotary drum 32 of the isolating membrane 30; the end cover 43 is connected with the other end of the shell 42, the end cover 43 is provided with a watertight connector 44, and the watertight connector 44 is also connected with a watertight cable. The shell 42 adopts a pressure-resistant design, so that the deep sea pressure resistance requirement can be met; the chamber inside the housing 42 corresponds to the driver 41 compartment, and each electronic component inside the driver 41 compartment operates in a normal pressure environment. The driver 41 adopts a Hall-free sensor type universal driver 41, detects the back electromotive force of the stator coil 52 through a voltage sensor, calculates the position of the magnetic steel 23 in the rotor propeller assembly 20, and further controls the stator coil 52 to be electrified and phase-changed. Watertight cables are mounted on the end caps 43 of the motor drive control system 40 to provide an external power source for the driver 41. In general, a sealing groove is formed in the circumferential direction of the outer shell 42, a second O-ring 47 is arranged in the sealing groove, and the drum 32 of the isolation film 30 and the outer shell 42 are in sealing connection through the second O-ring 47; similarly, a sealing groove is also formed in the circumferential direction of the end cover 43, a first O-ring 46 is also arranged in the sealing groove, and the housing 42 and the end cover 43 are in sealing connection through the first O-ring 46; secondly, the circumference of the watertight joint 44 is also provided with a sealing groove, a third O-ring 48 is arranged in the sealing groove, and the watertight joint 44 and the end cover 43 are in sealing connection through the third O-ring 48. Further, the housing 42 of the present invention is provided with a tip at the junction with the drum 32 of the isolation diaphragm 30, the tip being used to separate the chamber formed by the drum 32 of the isolation diaphragm 30 from the chamber formed by the housing 42; a chamber formed by the rotating drum 32 is filled with capacitor oil, the capacitor oil is used for balancing the pressure of external seawater, a chamber formed by the shell 42 is a cabin of the driver 41, and a chamber formed by the shell 42 is used for installing electronic elements such as the driver 41 and the like; the end is provided with a mounting groove, and the dry-wet separation joint 45 is mounted in the mounting groove. In general, the chamber formed by the rotating drum 32 is also connected with a compensation joint 35, and is connected with an external compensation hose 36 through the compensation joint 35, the other end of the compensation hose 36 is sealed and isolated from seawater through a plug, and the external seawater pressure is balanced through the deformation of the compensation hose 36; specifically, the compensating connector 35 is disposed on the drum 32 of the isolating diaphragm 30, and a flow passage is provided in the end of the housing 42 to allow the capacitor oil to enter the chamber formed by the drum 32.
In the deep sea magnetic coupling isolation oil compensation thruster, a driver 41 in a motor driving control system 40 controls the on-off of each stator coil 52 in a stator assembly 50, so that a periodically rotating magnetic field is generated in the axial direction, the rotating magnetic field is transmitted to magnetic steel 23 which is arranged in a cross way in a rotor propeller assembly 20 through an isolation sleeve 30, and the magnetic steel 23 is subjected to axial tension under the action of the magnetic field; when the magnetic field that stator coil 52 produced and magnet steel 23 self magnetic field produced rotation angle, thereby magnet steel 24 will receive and produce the moment of torsion with the tangential magnetic force effect of axial, and under the effect of moment of torsion, magnet steel 24 rotates together with stator coil 52's rotating magnetic field, and then drives screw 21 through rotor yoke 22 and rotates to produce the driving force.
Compared with the prior art, the invention has the beneficial effects that: the rotor propeller assembly 20 and the stator assembly 50 are axially arranged, and the stator assembly 50 and the rotor propeller assembly 20 are isolated by the isolation sleeve 30, so that the effect of isolation and sealing is achieved; the driver 41 controls the stator assembly 50 to be powered on/off to generate a rotating magnetic field at a certain speed, and the magnetic field acts on the rotor-propeller assembly 20 through the isolation sleeve 30 to drive the rotor-propeller assembly 20 to rotate, so as to generate driving force. The invention designs the motor stator and the magnetic coupler inner rotor into a whole, cancels the magnetic coupler inner rotor, directly adopts the stator assembly 50 to generate a rotating magnetic field, and drives the rotor propeller assembly 20 to rotate; the motor rotor and the magnetic coupler outer rotor are designed into a whole, the interior of the rotor propeller assembly 20 is filled with compensation oil, the interior of the stator assembly 50 is filled with capacitor oil, and no rotating part is arranged in the rotor propeller assembly 20, so that the oil abrasion loss of the rotation of the propeller is reduced; the deep sea magnetic coupling isolation oil compensation propeller is simple in structure, low in cost and long in service life of the isolation sleeve, prolongs the service life and reliability of the propeller, ensures long-time reliable operation of the propeller, has high energy conversion efficiency, has wide application prospect in the field of deep sea vehicles, mainly provides power for deep sea manned submersible vehicles, autonomous unmanned submersible vehicles, cable controlled submersible vehicles and other deep sea vehicles, certainly improves the range and residence time of the vehicle, and provides powerful support for the deep sea vehicle to cluster operation and remote control.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a deep sea magnetic coupling isolation fluid compensation propeller which characterized in that includes:
the motor driving control system is internally provided with a driver;
the rear end cover pressure compensation system is connected with the motor drive control system through a motor magnetic coupling system;
the motor magnetic coupling system includes:
the isolation sleeve comprises a rotating shaft and a rotating drum connected to one end of the rotating shaft, and the rotating shaft is positioned outside the rotating drum;
the rotor propeller assembly is sleeved outside the rotating shaft, one side of the rotor propeller assembly is connected with the rear end cover pressure compensation system, the other side of the rotor propeller assembly is connected with the rotating drum, and the other side of the rotating drum is connected with the motor drive control system;
a stator assembly disposed inside the drum, the stator assembly being connected with the drive.
2. The deep sea magnetic coupled isolation oil compensated thruster of claim 1, wherein the rotor propeller assembly comprises:
the propeller is positioned on the outer side, and blades are arranged on the propeller;
the rotor yoke comprises a sleeve and an end part arranged at one end of the sleeve, the propeller is sleeved outside the sleeve, and a groove is formed in the end part;
and the magnetic steel is arranged in the groove.
3. The deep sea magnetic coupled isolated oil compensated thruster of claim 2, wherein:
the screw propeller is characterized in that a fixing groove is formed in the outer portion of the sleeve, a flat key is arranged in the fixing groove, and the screw propeller is sleeved on the outer portion of the sleeve through the flat key.
4. The deep sea magnetic coupled isolated oil compensated thruster of claim 3, wherein:
the support bearing is arranged outside the rotating shaft, and the sleeve is sleeved outside the rotating shaft through the support bearing.
5. The deep sea magnetic coupling isolation oil compensating thruster of claim 4, wherein:
an annular bulge is arranged inside the sleeve, a shaft shoulder is arranged at one end, close to the rotary drum, of the rotary shaft, a clamping groove is arranged at one end, far away from the rotary drum, of the rotary shaft, and an E-shaped buckle is arranged in the clamping groove; the support bearing is two pairs, the bellied both sides of annular all are equipped with a pair of support bearing, wherein, a pair of support bearing set up in the annular protruding with between the shaft shoulder, another pair support bearing set up in the annular protruding with between the E type buckle, the E type buckle pass through D type gasket with the support bearing butt.
6. The deep sea magnetic coupled isolated oil compensated thruster of any one of claims 1 to 5, wherein the rear end cover pressure compensation system comprises:
the compensation film is arranged at the stern part of the rotor propeller assembly, and the section of the compensation film along the axial direction is U-shaped;
the gland, the gland set up in the outside of compensation membrane, the inside of gland be equipped with the compensation groove of compensation membrane looks adaptation.
7. The deep sea magnetic coupled isolated oil compensated thruster of claim 6, wherein:
the rotor propeller assembly is provided with a rotary oil seal at one side close to the rotary drum, the rotary oil seal is sleeved outside the rotary shaft, and the rotary oil seal is used for preventing compensation oil from leaking from the front end of the rotor propeller assembly.
8. The deep sea magnetically coupled isolated oil compensated thruster of claim 1, wherein the stator assembly comprises:
the stator yoke comprises an end seat and a plurality of stator teeth arranged on one side of the end seat, and the stator teeth are uniformly arranged at intervals along the circumferential direction of the end seat;
a stator coil wound on the stator teeth.
9. The deep sea magnetic coupling isolation oil compensating thruster of claim 8, wherein:
the end seat is provided with a clamping groove, a dry-wet separation joint is arranged in the clamping groove, and the stator coil is connected with the driver through the dry-wet separation joint.
10. The deep sea magnetically coupled isolated oil compensated thruster of claim 1, wherein the motor drive control system comprises:
a housing having a chamber disposed therein, the driver being located in the chamber, one end of the housing being connected to the drum;
the end cover is connected with the other end of the shell, a watertight joint is arranged on the end cover, and a watertight cable is further connected to the watertight joint.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111326604.1A CN114013619B (en) | 2021-11-10 | 2021-11-10 | Deep sea magnetic coupling isolation oil compensation propeller |
| NL2032766A NL2032766B1 (en) | 2021-11-10 | 2022-08-16 | Deep-sea magnetic coupling isolation oil compensation propulsion device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111326604.1A CN114013619B (en) | 2021-11-10 | 2021-11-10 | Deep sea magnetic coupling isolation oil compensation propeller |
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| CN114013619B CN114013619B (en) | 2022-09-27 |
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Also Published As
| Publication number | Publication date |
|---|---|
| NL2032766B1 (en) | 2023-06-21 |
| CN114013619B (en) | 2022-09-27 |
| NL2032766A (en) | 2023-06-07 |
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