CN107636939A - A kind of propeller - Google Patents
A kind of propeller Download PDFInfo
- Publication number
- CN107636939A CN107636939A CN201680013494.4A CN201680013494A CN107636939A CN 107636939 A CN107636939 A CN 107636939A CN 201680013494 A CN201680013494 A CN 201680013494A CN 107636939 A CN107636939 A CN 107636939A
- Authority
- CN
- China
- Prior art keywords
- bearing bracket
- drive end
- end bearing
- propeller
- fixing frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
-
- 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
- B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
Abstract
A kind of propeller, including external rotor electric machine, motor fixing frame（10）, center drilling drive end bearing bracket（40）, output shaft（30）, propeller（50）, motor fixing frame is the cavity body structure of one end open, and external rotor electric machine is fixedly mounted in cavity, and drive end bearing bracket is connected to form an annular seal space with motor fixing frame openend, output shaft one end and outer rotor（21）Coaxially connected, the other end is connected through drive end bearing bracket centre bore with propeller, output shaft and drive end bearing bracket centre bore junction sealed set, space be present between outer rotor and motor fixing frame inwall.By setting space among external rotor electric machine and motor fixing frame, with reference to forward and backward end cap（80）Connection, form closed sealed compartment, liquid medium injected in sealed compartment（60）, to realize the sealing to external rotor electric machine, water erosion equipment is avoided, while play a part of lubrication, cooling to motor, ensure propeller stable operation.
Description
Technical field
The invention belongs to underwater propulsion unit field, specifically, is related to a kind of propeller.
Background technology
Push system is widely used in the power set of the water surface or submarine navigation device, is mainly used to promote ROV boat
OK, or providing controllable power and torque makes equipment adjustment be in desired position and posture.
The push system used currently as submarine navigation device, generally rotated by single motor by coupling of shaft system propeller
Catheter combination is coordinated to use.Electric propulsion apparatus and high-pressure undersea water pump are the important components in benthoscope, and underwater
Motor is then the key of these underwater electromechanical assemblies, the submersible machine based on DC brushless motor, has that power to volume ratio is big, turns round
The advantages that square is big, efficiency high, external rotor electric machine is using relatively broad.
The sealing of outer rotor is always the key technology of submersible motor, because motor is the rotary work under hydraulic pressure, thus
Hydraulic pressure is higher, rotating speed is higher, is easy for revealing between axle and casing, and fault rate caused by the motor seal of underwater propeller is always
It is higher, seal request more and more higher of the external water pressure to motor.
In view of this it is special to propose the present invention.
The content of the invention
The technical problem to be solved in the present invention is overcome the deficiencies in the prior art, there is provided a kind of propeller, by outside
Space is set among rotor electric machine and motor fixing frame, with reference to the connection of forward and backward end cap, closed sealed compartment is formed, is sealing
Liquid medium is injected in cabin, to realize the sealing to external rotor electric machine, avoids occurring infiltration in use, permeable cause damage motor
Situation occur, the safe operation of effective guarantee motor, while liquid medium can also reach lubrication motor, the effect to electric motor temperature reduction
Fruit, ensure the reliable and stable operation of propeller.
In order to solve the above technical problems, the present invention is using the basic conception of technical scheme：
A kind of propeller, including the drive end bearing bracket of external rotor electric machine, motor fixing frame, center drilling, output shaft, propeller, it is described
Motor fixing frame be one end open cavity body structure, described external rotor electric machine is fixedly mounted in cavity, the drive end bearing bracket
It is connected to form an annular seal space with motor fixing frame openend, described output shaft one end is coaxially connected with outer rotor, and the other end is worn
Cross drive end bearing bracket centre bore to be connected with propeller, output shaft and drive end bearing bracket centre bore junction sealed set, described outer rotor with
Space be present between motor fixing frame inwall.
Further, gland seal device, described drive end bearing bracket are provided between described motor fixing frame and drive end bearing bracket centre bore
Sealed groove is provided with center drilling inner coaxial, described gland seal device is sleeved on output shaft, and at least partly sealing peace
In the sealed groove of drive end bearing bracket, the diameter of section of described sealed groove is more than the diameter of section of centre bore.
Further, described gland seal device is mechanical seal component, and described mechanical seal component includes being set with successively
Rotating ring, stationary ring on output shaft, described stationary ring are sealingly mounted in sealed groove, described rotating ring be arranged on outer rotor with
Between stationary ring and contact with each other, the axial length sum of described rotating ring and stationary ring is slightly larger than the axle between drive end bearing bracket and outer rotor
To distance.
Further, described center bore inner wall is provided with centre hole axis to the baffle plate for being divided into some separate chambers, described
Baffle plate be provided with the perforate being used for through output shaft, described baffle plate is connected with output shaft rotation.
Further, described drive end bearing bracket is coaxially provided with groove, the diameter of section of described groove on the outside of center drilling
More than the diameter of section of centre bore, oil sealing is installed in described groove, described drive end bearing bracket is provided with close to propeller side
The closure being fixedly connected with drive end bearing bracket.
Further, the described hydraulically full medium of sealed compartment interior sealing.
Further, described rotating ring, stationary ring are arranged in sealed compartment, and liquid medium circumference envelope rotating ring and stationary ring.
Further, described separate chamber interior sealing liquid medium.
Further, described liquid medium is coolant, and described coolant includes fluid, pure water.
Preferably, described liquid medium is cooling oil.
Further, sealing fills lubricating grease in described separate chamber.
Further, in addition to rear end cap, described rear end cap are arranged on the one end of motor fixing frame away from drive end bearing bracket.
Further, described motor fixing frame and/or rear end cap are consolidated at least provided with a liquid electric connection, described motor
Fixed to set up the liquid medium supply port having for supplementing liquid medium in sealed compartment, described liquid medium supply port is mended with liquid
Fill and put sealed connection.
Further, in addition to it is used for the kuppe for protecting propeller, described kuppe is installed by water conservancy diversion cover stent
On drive end bearing bracket.
Further, described kuppe is the round platform that hollow cavity is provided with along axis, and the big mouth of round platform is close to front end
Lid is set, and described water conservancy diversion cover stent is installed close to the big mouth of round platform, and described propeller is coaxial with kuppe and is arranged on circle
Between the big mouth of platform and osculum.
Further, described external rotor electric machine is connected by the inwall of fixed seat and cavity, it is preferable that described fixation
Seat is boss-shaped, and the bottom surface connection of protruding end and cavity, the other end relative with protruding end is connected with external rotor electric machine, described
The bottom chamber wall of cavity is provided with the raised cavity or hole of matching.
Further, described rear end cap is all provided with motor fixing frame junction, motor fixing frame and drive end bearing bracket junction
There is sealing ring, described motor fixing frame is provided with the groove of installation sealing ring.
Further, the groove of described installation sealing ring is arranged on the end face of motor fixing frame.
Further, described drive end bearing bracket is provided with sealing ring with closure junction, and it is close that described drive end bearing bracket is provided with installation
The groove of seal.
Further, described sealing ring is O-ring seal.
Further, described motor fixing frame is provided with the mounting seat for being used for fixing motor fixing frame, described mounting seat
Provided with the through hole for cabling, pipe, the mounting seat is provided with the screw of fitted bolt.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art.
The present invention among external rotor electric machine and motor fixing frame by setting space, with reference to the connection of forward and backward end cap, shape
Into closed sealed compartment, liquid medium is injected in sealed compartment, to realize the sealing to external rotor electric machine, while output shaft with
Sealing structure is provided between drive end bearing bracket, by the application of static seal, dynamic sealing component, multi-layer sealed guarantor is formed to external rotor electric machine
Shield, avoid being in the presence of in use infiltration, permeable cause damage motor appearance, the safe operation of effective guarantee motor.
External rotor electric machine small volume of the present invention, length is short, torque is big, simple and reasonable, and over all Integration degree improves, and is easy to
Installation and maintenance, propeller good sealing effect, stable and reliable operation, ensure the reliable and stable operation of propeller.
The liquid medium of the present invention can also play lubrication motor and other parts, beneficial to propeller Effec-tive Function, while can
Heat caused by motor is timely transferred out, quickly to electric motor temperature reduction, ensures propeller runnability.
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
A part of the accompanying drawing as the application, for providing further understanding of the invention, of the invention is schematic
Embodiment and its illustrate to be used to explain the present invention, but do not form inappropriate limitation of the present invention.Obviously, drawings in the following description
Only some embodiments, to those skilled in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.In the accompanying drawings：
Fig. 1 is the structural representation of one embodiment of the invention；
Fig. 2 is the overall structure diagram of further embodiment of this invention；
Fig. 3 is the A-A diagrammatic cross-sections of further embodiment of this invention；
Fig. 4 is the explosive view of further embodiment of this invention.
In figure：10- motor fixing frames；21- outer rotors；22- inner stators；23- fixed seats；30- output shafts；40- drive end bearing brackets；
41- closures；42- baffle plates；50- propellers；60- liquid mediums；61- lubricating grease；71- rotating rings；72- stationary rings；73- oil sealings；80-
Rear end cap；90- kuppes；91- water conservancy diversion cover stents；100-O type sealing rings；110- mounting seats.
It should be noted that these accompanying drawings and word description are not intended as the design model limiting the invention in any way
Enclose, but be that those skilled in the art illustrate idea of the invention by reference to specific embodiment.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in embodiment is clearly and completely described, following examples be used for illustrate the present invention, but
It is not limited to the scope of the present invention.
It is term " on ", " under ", "front", "rear", "left", "right", " perpendicular in the description of the invention, it is necessary to explanation
Directly ", the orientation of the instruction such as " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, merely to just
In the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of propeller of the present invention, including external rotor electric machine, motor are fixed
Frame 10, the drive end bearing bracket 40 of center drilling, output shaft 30, propeller 50, described motor fixing frame 10 are the cavity of one end open
Structure, described external rotor electric machine are fixedly mounted in cavity, and the drive end bearing bracket 40 is connected shape with the openend of motor fixing frame 10
Into a sealed compartment, described one end of output shaft 30 and outer rotor are coaxially connected, and the other end passes through the centre bore of drive end bearing bracket 40 and spiral
Oar 50 connects, output shaft 30 and the centre bore junction sealed set of drive end bearing bracket 40, in described outer rotor and motor fixing frame 10
Space between wall be present.
Specifically, external rotor electric machine includes outer rotor 21, inner stator 22, fixed seat 23, and inner stator 22 is fixed on fixed seat
On 23, motor fixing frame 10 is cylinder-shaped, and one end is provided with opening, is internally formed a chamber, and external rotor electric machine is placed on into electricity
In the chamber of machine fixed mount 10, inner stator 22 is connected by fixed seat 23 with the inwall of motor fixing frame 10, the knot of fixed seat 23
Structure does not limit with type of attachment, it is only necessary to which inner stator 22 can be fixed in cavity and external rotor electric machine is run well by satisfaction
, such as can be support bar, connection gasket or positive stop bead etc., it is preferable that described fixed seat is boss-shaped, protruding end and chamber
The inner stator 22 of the bottom surface connection of body, the other end relative with protruding end and external rotor electric machine connects, the bottom of described cavity
Cavity wall is provided with the raised cavity or hole of matching, and projection is fitted into cavity or hole, can be fixed fixed seat 23 by bolt
On the bottom face of the cylinder of motor fixing frame 10.Drive end bearing bracket 40 is a cap-type shape, can be fastened with motor fixing frame 10 and fixation connects
Connecing makes to be internally formed a sealed compartment, and drive end bearing bracket 40 is provided with a perforate at center, by one end of output shaft 30 by flange and outside
Rotor 21 connects, output shaft 30 and the concentric setting of outer rotor, the other end of output shaft 30 through drive end bearing bracket 40 centre bore with
Propeller connects, wherein, output shaft 30 and the centre bore of drive end bearing bracket 40 is are rotatably connected and sealed set, sealed set for example may be used
Using sealing ring, oil sealing, oiling sealing, mechanical seal etc., when outer rotor 21 drives output shaft 30 to rotate, outside water will not
Enter sealed compartment from the junction of output shaft 30 and drive end bearing bracket 40.
Retain the space of a determining deviation between the inwall of outer rotor 21 and motor fixing frame 10, outer rotor 21 is in operation not
The inwall of motor fixing frame 10 can be contacted, as a kind of preferred embodiment, liquid filling body medium 60 in described sealed compartment, is being sealed
Liquid medium 60 is filled in cabin, makes being contacted to outer portion with the holding of liquid medium 60 for outer rotor 21, when outer rotor 21 works, is
It is in liquid medium 60 and rotates, the liquid medium 60 in sealed compartment is equal to the centre bore junction of output shaft 30 and drive end bearing bracket 40
Pressure can be produced, balance or hydraulic pressure reaction force are formed with external water pressure, ensures that external water does not enter in sealed compartment, further increases
Strong sealing, meanwhile, outer rotor 21 is in liquid medium 60 for a long time to be run, and further, liquid medium 60 is coolant, cold
But liquid includes fluid, pure water, and the effect of cooling, radiating can be formed to outer rotor, the long-time Effec-tive Function of motor is formed
Protection, it is preferable that described liquid medium 60 is cooling oil, sealing, cooling, the effect of lubrication can be achieved, to external rotor electric machine
And mechanical part forms protection, avoids suffering water erosion.
Further to improve output shaft 30 and the sealing of the junction of drive end bearing bracket 40, in motor fixing frame 10 and drive end bearing bracket 40
Between a gland seal device is set, described drive end bearing bracket 40 is provided with sealed groove, described axle envelope dress in center drilling inner coaxial
Put and be sleeved on output shaft 30, and be at least partly sealingly mounted in the sealed groove of drive end bearing bracket 40, described sealed groove
Diameter of section is more than the diameter of section of centre bore, sets gland seal device in output shaft 30 and the junction of drive end bearing bracket 40, can effectively carry
The sealing of height output axle 30 and the centre bore of drive end bearing bracket 40, gland seal device can be selected sealing ring or other air lockings, will seal
Circle or other air lockings are arranged in sealed groove, to make sealing property more preferable, the diameter of sealed groove be less than sealing ring or
The diameter of other air lockings, after output shaft 30 is installed, sealing ring or other air lockings are in sealed groove and output shaft
Squeezed state is between 30, ensures the sealing to output shaft 30 and the junction of drive end bearing bracket 40, further, an elasticity is set
Device or locking device, sealing ring or other air lockings are consolidated, can be in outer rotor 21 and sealing ring or other sealings
A spring is set with output shaft 30 between device, spring is often in compressive state, and sealing ring or other air lockings are formed
Thrust, tabletting or elastic device also or on drive end bearing bracket 40 or motor fixing frame 10 are set, to sealing ring or other sealers
Part is exerted a force, and sealing ring or other air lockings are pushed into sealed groove, ensures sealing ring or other air lockings
Sealing.
Gland seal device is as the containment member for strengthening sealing, and as a kind of preferred scheme, described gland seal device is machine
Tool containment member, described mechanical seal component include rotating ring 71, the stationary ring 72 being sleeved on successively on output shaft 30, and described is quiet
Ring 72 is sealingly mounted in sealed groove, and described rotating ring 71 is arranged between outer rotor and stationary ring 72 and contacted with each other, described
Rotating ring 71 and stationary ring 72 axial length sum slightly larger than axial distance between drive end bearing bracket 40 and outer rotor 21.Rotating ring 71,
Stationary ring 72 is sleeved on output shaft 30, and stationary ring 72 is squeezed in sealed groove, when outer rotor 21 rotates, stationary ring 72 and output shaft
30 form and relatively rotate, and stationary ring 72 seals to output shaft 30 and the centre bore of drive end bearing bracket 40, rotating ring 71 be arranged on stationary ring 72 and
Between outer rotor 21, rotating ring 71 presses against stationary ring 72 in sealed groove as the pressing device to stationary ring 72, it is ensured that stationary ring 72
It is in motor work or when motor stops in sealed groove, ensures stationary ring 72 to output shaft 30 and the junction of drive end bearing bracket 40
Sealing, so as to ensure external water will not enter sealed compartment in.Described rotating ring 71, stationary ring 72 are arranged in sealed compartment, and
The circumferential envelope rotating ring 71 of liquid medium 60 and stationary ring 72, rotating ring 71, the stationary ring 72 being in sealed compartment, around by liquid medium bag
Enclose, to being lubricated, completely cutting off between rotating ring 71, stationary ring 72 and output shaft 30, even if the water for having outside enters in sealed compartment, use
The liquid medium of cooling oil is not allowed with water yet, and due to oil and the difference of water density, cooling oil still can be to rotating ring 71, stationary ring 72, outer
Rotor 21 and the attached oil of other parts, water will not corrode mechanical part, fully ensure that the stability of propeller internals.
The sealing property of drive end bearing bracket 40 and output shaft 30 is directly connected to the equipment safety in motor and sealed compartment, the present invention
Described center bore inner wall is provided with centre hole axis to the baffle plate 42 for being divided into some separate chambers, and described baffle plate 42, which is provided with, to be used for
Through the perforate of output shaft 30, described baffle plate 42 is closely rotatablely connected with output shaft 30, and the centre bore of drive end bearing bracket 40 is used to wear
Cross output shaft 30 and output shaft 30 is sealed, the external water during rotation of output shaft 30 is not entered in sealed compartment, centre bore
Diameter be more than the diameter of output shaft 30, output shaft 30 and center bore inner wall leave the space of certain distance, in the axle of centre bore
Baffle plate 42 is set on inward wall, and centre bore in axial segmentation, is formed several separate chambers, baffle plate 42 is provided with and center by baffle plate 42
The coaxial perforate in hole, the diameter of perforate are slightly larger than the diameter of output shaft 30, and the coaxial same footpath of the perforate of several baffle plates.Wherein,
Perforate is rotatablely connected and is tightly connected with output shaft 30；Also or baffle plate is movably installed on center bore inner wall, output shaft 30 with
Baffle plate closely connects, and output shaft 30 together turns when rotating with baffle plate, and baffle plate is rotatably connected with center bore inner wall.Will during installation
Output shaft 30 sequentially passes through the perforate of some baffle plates 41, and the separate chamber meeting envelope output shaft 30 of formation, separate chamber can form axle envelope
Structure, if some separate chambers form dried layer axle envelope, it is preferable that sealing fills lubricating grease 61 in separate chamber, if forming dried layer oiling
Sealing structure, lubricating grease 61 and water, oil do not merge, liquid medium sealing that can be in effective guarantee sealed compartment, prevent liquid
Medium connects with separate chamber, strengthens the axle envelope effect to output shaft 30, and form lubrication to output shaft 30.Should be by this
Art personnel will be understood by, and baffle plate mentioned here is only the part for splitting separate chamber, is provided with output shaft same
Sample can reach effect, it is only necessary to if meeting the chamber for forming dried layer shaft seal structure.
To make the centre bore of drive end bearing bracket 40 and the sealing property of extraneous water junction more stable, described drive end bearing bracket 40 is at center
Groove is coaxially provided with the outside of perforate, the diameter of section of described groove is more than the diameter of section of centre bore, pacified in described groove
Equipped with oil sealing 73, described drive end bearing bracket 40, provided with the closure 41 being fixedly connected with drive end bearing bracket, passes through close to propeller side
The fixation of closure 41 and drive end bearing bracket 40, makes oil sealing 73 seal in a groove, oil sealing 73 can be by the lubricating grease 61 in separate chamber
Sealed, prevent the seepage of lubricating grease 61, further improved to output shaft, centre bore and the sealing of extraneous water contact position.
To strengthen the sealing to the bottom of motor fixing frame 10, propeller also includes rear end cap 80, and described rear end cap 80 is pacified
Mounted in the one end of motor fixing frame 10 away from drive end bearing bracket 40.Increase by a rear end cap 80 in the bottom of motor fixing frame 10, in motor
After installation, then in the outer bottom of motor fixing frame 10 rear end cap 80 is installed, strengthens the waterproof of motor and motor fixing frame 10
Sealing, it is preferable that described rear end cap 80 and the junction of motor fixing frame 10, motor fixing frame 10 and the junction of drive end bearing bracket 40
Sealing ring is equipped with, described motor fixing frame 10 is provided with the groove of installation sealing ring, and the groove of described installation sealing ring is set
Put on the end face of motor fixing frame 10, described sealing ring is O-ring seal 100, by setting O-ring seal to consolidate motor
Determine frame 10 and drive end bearing bracket 40, the sealing of the junction of rear end cap 80, equally, other sealed sets or device can also be used,
Junction is sealed.
Meeting consumption of the meeting of liquid medium 60 in equipment operation more or less in sealed compartment, it is long-term in sealed compartment to ensure
It is full of or the state close to hydraulically full medium 60, described motor fixing frame 10 and/or rear end cap 80 are at least provided with a liquid
Electric connection, described motor fixing frame 10 is provided with the liquid medium supply port for being used for supplementing liquid medium 60 in sealed compartment, described
Liquid medium supply port and liquid supplying device be tightly connected.By external control device, to the liquid medium in sealed compartment
60 are monitored,, will be to be supplemented by control device operating liquid medium supplementary device after liquid medium loss is a certain amount of
Liquid medium is added in sealed compartment by liquid medium supply port, and the running of motor needs to connect electric wire, is connected by liquid electric connection
Lead to outside power-supply device, be motor supply of electrical energy, it is preferable that described motor fixing frame 10 is provided with to be fixed for fixing motor
The mounting seat 110 of frame, described mounting seat 110 is provided with is provided with fitted bolt for cabling, the through hole of pipe, the mounting seat 110
Screw, mounting seat 110 set a central through hole, by the electric wire used or liquid electric connection, liquid medium supply port and supplement
The Guan Jun of liquid medium may be provided in the chamber of through hole, when mounting seat 110 is connected installation with being pushed into equipment, can pass through sealing
The air lockings such as pad, mounting seat 110 is installed and is pushed into equipment, can so ensure liquid electric connection and liquid medium supply port
Water not with outside contacts, and realizes the sealing to its peripheral equipment, further enhances the sealing of propeller.
In the termination of propeller 50, in order to be protected to propeller 50, described propeller also includes being used to protect spiral shell
The kuppe 90 of oar 50 is revolved, described kuppe 90 is arranged on drive end bearing bracket 40 by water conservancy diversion cover stent 91, can avoided miscellaneous in water
Thing impacts to propeller 50, avoids damaging propeller 50 or disturbs its work to run, and described kuppe 90 is along axis
Round platform provided with hollow cavity, and the big mouth of round platform is set close to drive end bearing bracket, described water conservancy diversion cover stent 91 is close to the big of round platform
Mouth installation, described propeller 50 is coaxial with kuppe 90 and is arranged between the big mouth of round platform and osculum, it is preferable that propeller 50
The medium position between big mouth and osculum, kuppe 90 be both ends open round table-like cover, the throwing of the top surface of round table-like cover
Shadow is less than the projection of bottom surface, and the top surface of round platform is osculum, and bottom surface is big mouth, and the bottom surface of kuppe 90 is big mouth close to drive end bearing bracket 40
Set, water conservancy diversion cover stent is arranged on bottom surface near ports, and propeller 50 is coaxially disposed with kuppe 90 and is located at top surface and bottom surface
Middle part, kuppe is designed to the horn-like structure of class, but amount of drinking water when propeller 50 works is larger, water yield is smaller,
Form current slow-motion soon to go out, strengthen propeller pushes away water effect.
The present invention among external rotor electric machine and motor fixing frame by setting space, with reference to the connection of forward and backward end cap, shape
Into closed sealed compartment, liquid medium is injected in sealed compartment, to realize the sealing to external rotor electric machine, while output shaft with
Sealing structure is provided between drive end bearing bracket, by the application of static seal, dynamic sealing component, multi-layer sealed guarantor is formed to external rotor electric machine
Shield, avoid being in the presence of in use infiltration, permeable cause damage motor appearance, the safe operation of effective guarantee motor.
External rotor electric machine small volume of the present invention, length is short, torque is big, simple and reasonable, and over all Integration degree improves, and is easy to
Installation and maintenance, propeller good sealing effect, stable and reliable operation, ensure the reliable and stable operation of propeller.
The liquid medium of the present invention can also play lubrication motor and other parts, beneficial to propeller Effec-tive Function, while can
Heat caused by motor is timely transferred out, quickly to electric motor temperature reduction, ensures propeller runnability.
Embodiment one
As shown in figure 1, a kind of propeller described in the present embodiment, including external rotor electric machine, motor fixing frame 10, center drilling
Drive end bearing bracket 40, output shaft 30, propeller 50, rear end cap 80, external rotor electric machine include outer rotor 21, inner stator 22, fixed seat 23,
External rotor electric machine is arranged on the inner bottom surface of motor fixing frame 10 by fixed seat 23, and the one end of output shaft 30 coaxially connects with outer rotor 21
Connect, the other end is connected through the centre bore of drive end bearing bracket 40 with propeller 50, sky between outer rotor and the inwall of motor fixing frame 10 be present
Gap, the sealed compartment interior sealing that drive end bearing bracket 40, the connection of motor fixing frame 10 are formed fill up cooling oil.
Specifically, external rotor electric machine includes outer rotor 21, inner stator 22, fixed seat 23, and inner stator 22 is fixed on fixed seat
On 23, motor fixing frame 10 is cylinder-shaped, and one end is provided with opening, is internally formed a chamber, and external rotor electric machine is placed on into electricity
In the chamber of machine fixed mount 10, inner stator 22 is connected by fixed seat 23 with the inwall of motor fixing frame 10, if fixed seat 23 is
Heavenly Stems and Earthly Branches strut, inner stator 22 is fixed in cavity by support bar, while ensures that external rotor electric machine runs well.Drive end bearing bracket
40 be a cap-type shape, and can be fastened with motor fixing frame 10 and be threadably secured to be connected makes to be internally formed a sealed compartment, motor
The connectivity port of fixed mount 10 is provided with internal thread, and drive end bearing bracket 40 is provided with a perforate at center, one end of output shaft 30 is passed through into method
Orchid is connected with outer rotor 21, and output shaft 30 and the concentric setting of outer rotor, the other end of output shaft 30 are passed through in drive end bearing bracket 40
Heart hole is connected with propeller 50, and output shaft 30 is that rotatable sealing is connected with the centre bore of drive end bearing bracket 40, is driven in outer rotor 21 defeated
When shaft 30 rotates, outside water will not enter sealed compartment from the junction of output shaft 30 and drive end bearing bracket 40.
Set space at regular intervals between the inwall of outer rotor 21 and motor fixing frame 10, outer rotor 21 is in operation not
The inwall of motor fixing frame 10 can be contacted, cooling oil is filled in sealed compartment, makes being protected to outer portion and cooling oil for outer rotor 21
Contact is held, is to be in cooling oil to rotate, the cooling oil in sealed compartment is to output shaft 30 and drive end bearing bracket 40 when outer rotor 21 works
Centre bore junction can produce pressure, with external water pressure formed balance or hydraulic pressure reaction force, ensure external water do not enter
In sealed compartment, outer rotor 21 is in cooling oil for a long time to be run, and lubrication, cooling, the effect of radiating can be formed to outer rotor, externally
Rotor electric machine and mechanical part form protection, avoid suffering water erosion.
The center bore inner wall of drive end bearing bracket 40 is provided with and sets centre hole axis to the baffle plate 42 for being divided into some separate chambers, baffle plate 42
Have and be closely rotatablely connected with output shaft 30 for the perforate through output shaft 30, baffle plate 42, the centre bore of drive end bearing bracket 40 is used to wear
Cross output shaft 30 and output shaft 30 is sealed, the external water during rotation of output shaft 30 is not entered in sealed compartment, centre bore
Diameter be more than the diameter of output shaft 30, output shaft 30 and center bore inner wall leave the space of certain distance, in the axle of centre bore
Baffle plate 42 is set on inward wall, and centre bore in axial segmentation, is formed several separate chambers, baffle plate 42 is provided with and center by baffle plate 42
The coaxial perforate in hole, the diameter of perforate are slightly larger than the diameter of output shaft 30, and the coaxial same footpath of the perforate of several baffle plates, perforate with
Output shaft 30 is rotatablely connected and is tightly connected.Output shaft 30 sequentially passes through to the perforate of some baffle plates 41 during installation, formation it is only
Vertical chamber meeting envelope output shaft 30, separate chamber can form shaft seal structure, and sealing fills lubricating grease 61 in separate chamber, if forming dried layer note
Oil seal structure, lubricating grease 61 and water, oil do not merge, liquid medium sealing that can be in effective guarantee sealed compartment, prevent liquid
Body medium connects with separate chamber, strengthens the axle envelope effect to output shaft 30, and form lubrication to output shaft 30.
Drive end bearing bracket 40 is coaxially provided with groove on the outside of center drilling, and the diameter of section of groove is straight more than the section of centre bore
Footpath, is provided with oil sealing 73 in groove, and drive end bearing bracket 40 is being provided with the closure 41 that is fixedly connected with drive end bearing bracket close to propeller side,
By the fixation of closure 41 and drive end bearing bracket 40, oil sealing 73 is set to seal in a groove, oil sealing 73 can be by the lubrication in separate chamber
Fat 61 is sealed, and prevents the seepage of lubricating grease 61, is further improved to output shaft, centre bore and the sealing of extraneous water contact position
Property.
The present invention sets space among external rotor electric machine and motor fixing frame, with reference to the connection of forward and backward end cap, is formed close
The sealed compartment closed, injects liquid medium in sealed compartment, to realize the sealing to external rotor electric machine, while in output shaft and front end
Static seal is provided between lid, multi-layer sealed protection is formed to external rotor electric machine, avoids occurring infiltration in use, permeable cause damage
The situation of motor occurs, the safe operation of effective guarantee motor.
Embodiment two
As shown in Figure 2, Figure 3, Figure 4, a kind of propeller described in the present embodiment, including external rotor electric machine, motor fixing frame 10, in
Drive end bearing bracket 40, output shaft 30, propeller 50, rear end cap 80, mechanical seal component, the kuppe 90 of heart perforate, external rotor electric machine
Including outer rotor 21, inner stator 22, fixed seat 23, mechanical seal component includes rotating ring 71, stationary ring 72, and external rotor electric machine passes through solid
Reservation 23 is arranged on the inner bottom surface of motor fixing frame 10, and the one end of output shaft 30 and outer rotor 21 are coaxially connected, and the other end passes through front end
The centre bore of lid 40 is connected with propeller 50, space between outer rotor and the inwall of motor fixing frame 10 be present, and drive end bearing bracket 40, motor are solid
Determine filling cooling oil in the sealed compartment that the connection of frame 10 is formed.
Specifically, external rotor electric machine includes outer rotor 21, inner stator 22, fixed seat 23, and inner stator 22 is fixed on fixed seat
On 23, motor fixing frame 10 is cylinder-shaped, and one end is provided with opening, is internally formed a chamber, and external rotor electric machine is placed on into electricity
In the chamber of machine fixed mount 10, inner stator 22 is connected by fixed seat 23 with the inwall of motor fixing frame 10, and fixed seat is boss
The inner stator 22 of the bottom surface connection of shape, protruding end and cavity, the other end relative with protruding end and external rotor electric machine connects, cavity
Bottom chamber wall be provided with the raised cavity or hole of matching, projection is fitted into cavity or hole, by bolt by fixed seat 23
It is fixed on the bottom face of the cylinder of motor fixing frame 10, bolt is conveniently installed through the outer wall of motor fixing frame 10.Drive end bearing bracket
40 be a cap-type shape, and can be fastened with motor fixing frame 10 and be threadably secured to be connected makes to be internally formed a sealed compartment, motor
The connectivity port of fixed mount 10 is provided with internal thread, and drive end bearing bracket 40 is provided with a perforate at center, one end of output shaft 30 is passed through into method
Orchid is connected with outer rotor 21, and output shaft 30 and the concentric setting of outer rotor, the other end of output shaft 30 are passed through in drive end bearing bracket 40
Heart hole is connected with propeller, and output shaft 30 is that rotatable sealing is connected with the centre bore of drive end bearing bracket 40, drives and exports in outer rotor 21
When axle 30 rotates, outside water will not enter sealed compartment from the junction of output shaft 30 and drive end bearing bracket 40.
Set space at regular intervals between the inwall of outer rotor 21 and motor fixing frame 10, outer rotor 21 is in operation not
The inwall of motor fixing frame 10 can be contacted, cooling oil is filled in sealed compartment, makes being protected to outer portion and cooling oil for outer rotor 21
Contact is held, is to be in cooling oil to rotate, the cooling oil in sealed compartment is to output shaft 30 and drive end bearing bracket 40 when outer rotor 21 works
Centre bore junction can produce pressure, with external water pressure formed balance or hydraulic pressure reaction force, ensure external water do not enter
In sealed compartment, outer rotor 21 is in cooling oil for a long time to be run, and lubrication, cooling, the effect of radiating can be formed to outer rotor, externally
Rotor electric machine and mechanical part form protection, avoid suffering water erosion.
Rotating ring 71, stationary ring 72 are sleeved on output shaft 30, and stationary ring 72 is squeezed in what drive end bearing bracket 40 was coaxially disposed with centre bore
In sealed groove, when outer rotor 21 rotates, stationary ring 72 is formed with output shaft 30 and relatively rotated, and stationary ring 72 is to output shaft 30 with before
The centre bore of end cap 40 is sealed, and rotating ring 71 is arranged between stationary ring 72 and outer rotor 21, and rotating ring 71 is as pushing away to stationary ring 72
Pressure device, stationary ring 72 is pressed against in sealed groove, it is ensured that stationary ring 72 is in sealing in motor work or when motor stops
In groove, stationary ring 72 is ensured to output shaft 30 and the sealing of the junction of drive end bearing bracket 40, so as to ensure that it is close that external water will not enter
In batten down.
Rotating ring 71, the stationary ring 72 being in sealed compartment, the cooled oil of surrounding surrounds, to rotating ring 71, stationary ring 72 and output shaft
It is lubricated, completely cuts off between 30, even if the water for having outside enters in sealed compartment, cooling oil is not allowed with water yet, due to oil and watertight
The difference of degree, cooling oil still can will not corrode mechanical part to rotating ring 71, stationary ring 72, outer rotor 21 and the attached oil of other parts, water,
Fully ensure that the stability of propeller internals.
Rear end cap 80 is installed in the outer bottom of motor fixing frame 10, strengthens the waterproof sealing of motor and motor fixing frame 10
Property, rear end cap 80 and the junction of motor fixing frame 10, motor fixing frame 10 and the junction of drive end bearing bracket 40 be equipped with sealing ring, motor
Fixed mount 10 is provided with the groove of installation sealing ring, and the groove for installing sealing ring is arranged on the end face of motor fixing frame 10, seals
Enclose as O-ring seal 100, by set O-ring seal to motor fixing frame 10 and drive end bearing bracket 40, the junction of rear end cap 80 it is close
Feng Xing.
Motor fixing frame 10 and/or rear end cap 80 are provided with for cold at least provided with a liquid electric connection, motor fixing frame 10
Oily supply port, supply port are tightly connected with cooling oil supplementary device.By external control device, to the liquid in sealed compartment
Medium 60 is monitored, and after liquid medium loss is a certain amount of, by control device operating liquid medium supplementary device, will wait to mend
The liquid medium filled is added in sealed compartment by liquid medium supply port, and the running of motor needs to connect electric wire, is connect by liquid electricity
Power-supply device outside head connection, is motor supply of electrical energy, it is preferable that motor fixing frame 10, which is provided with, to be used to fix motor fixing frame
Mounting seat 110, mounting seat 110 be provided with for cabling, the through hole of pipe, the mounting seat 110 be provided with fitted bolt screw,
Mounting seat 110 sets a central through hole, and the electric wire that motor is used or liquid electric connection, liquid medium supply port and liquid make-up are situated between
The Guan Jun of matter may be provided in the chamber of through hole, can be close by sealing gasket etc. when mounting seat 110 is connected installation with being pushed into equipment
Seal device, mounting seat 110 is installed and is pushed into equipment, can so ensure liquid electric connection and liquid medium supply port not with
Outside water contact, realizes the sealing to its peripheral equipment, further enhances the sealing of propeller.
Kuppe 90 is arranged on drive end bearing bracket 40 by water conservancy diversion cover stent 91, and debris in water can be avoided to cause propeller 50
Influence, avoid damaging propeller 50 or disturb its work to run, described kuppe 90 is the circle that hollow cavity is provided with along axis
Platform, and the big mouth of round platform is set close to drive end bearing bracket, described water conservancy diversion cover stent 91 is installed close to the big mouth of round platform, described spiral
Oar 50 is coaxial with kuppe 90 and is arranged on medium position between big mouth and osculum, and kuppe 90 is round table-like for both ends open
Cover, the projection of the top surface of round table-like cover is less than the projection of bottom surface, and the top surface of round platform is osculum, and bottom surface is big mouth, kuppe 90
Bottom surface is that big mouth is set close to drive end bearing bracket 40, and water conservancy diversion cover stent is arranged on bottom surface near ports, and propeller 50 and kuppe 90 are same
Axle sets and positioned at the middle part of top surface and bottom surface, and kuppe is designed to the horn-like structure of class, but when propeller 50 works
Amount of drinking water is larger, water yield is smaller, forms current slow-motion and goes out soon, and strengthen propeller pushes away water effect.
The present embodiment propeller uses external rotor electric machine, in external rotor electric machine external seal cooling oil, can realize and externally turn
The sealing of sub-motor, prevent from, by water erosion, and can cooling motor, lubrication motor, the Effec-tive Function of motor being effectively ensured, extends electricity
It is the machine life-span, simple in construction, torque is big, ensure the reliable and stable operation of propeller.
Described above is only presently preferred embodiments of the present invention, not makees any formal limitation to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompting make it is a little change or be modified to
The equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit pair according to the present invention
Any simple modification, equivalent change and modification that above example is made, in the range of still falling within the present invention program.
Claims (10)
1. a kind of propeller, it is characterised in that including external rotor electric machine, motor fixing frame（10）, center drilling drive end bearing bracket
（40）, output shaft（30）, propeller（50）, described motor fixing frame（10）For the cavity body structure of one end open, described is outer
Rotor electric machine is fixedly mounted in cavity, the drive end bearing bracket（40）With motor fixing frame（10）Openend connects to form a sealing
Cabin, described output shaft（30）One end is coaxially connected with outer rotor, and the other end passes through drive end bearing bracket（40）Centre bore and propeller
（50）Connection, output shaft（30）With drive end bearing bracket（40）Centre bore junction sealed set, described outer rotor and motor fixing frame
（10）Space between inwall be present.
A kind of 2. propeller according to claim 1, it is characterised in that described motor fixing frame（10）With drive end bearing bracket
（40）Gland seal device, described drive end bearing bracket are provided between centre bore（40）Sealed groove, institute are provided with center drilling inner coaxial
The gland seal device stated is sleeved on output shaft（30）On, and at least partly it is sealingly mounted at drive end bearing bracket（40）Sealed groove in, institute
The diameter of section for the sealed groove stated is more than the diameter of section of centre bore.
A kind of 3. propeller according to claim 2, it is characterised in that described gland seal device is mechanical seal component,
Described mechanical seal component includes being sleeved on output shaft successively（30）On rotating ring（71）, stationary ring（72）, described stationary ring
（72）It is sealingly mounted in sealed groove, described rotating ring（71）Installed in outer rotor and stationary ring（72）Between and contact with each other,
Described rotating ring（71）And stationary ring（72）Axial length sum be slightly larger than drive end bearing bracket（40）With outer rotor（21）Between axial direction
Distance.
4. a kind of propeller according to claim 1, it is characterised in that described center bore inner wall is provided with centre hole axis
To the baffle plate for being divided into some separate chambers（42）, described baffle plate（42）Provided with for the perforate through output shaft, described gear
Plate（42）With output shaft（30）Rotation connection.
A kind of 5. propeller according to claim 4, it is characterised in that described drive end bearing bracket（40）On the outside of center drilling
Groove is coaxially provided with, the diameter of section of described groove is more than the diameter of section of centre bore, oil sealing is provided with described groove
（73）, described drive end bearing bracket（40）It is provided with and drive end bearing bracket close to propeller side（40）The closure being fixedly connected（41）.
6. according to a kind of propeller described in claim 1-5 any one, it is characterised in that described sealed compartment interior sealing is filled
Full liquid medium（60）.
A kind of 7. propeller according to claim 6, it is characterised in that described liquid medium（60）For coolant, institute
The coolant stated includes fluid, pure water.
8. a kind of propeller according to claim 1, it is characterised in that also include being used to protect propeller（50）Water conservancy diversion
Cover（90）, described kuppe（90）Pass through water conservancy diversion cover stent（91）Installed in drive end bearing bracket（40）On.
A kind of 9. propeller according to claim 8, it is characterised in that described kuppe（90）In being provided with along axis
The round platform of empty cavity, and the big mouth of round platform is close to drive end bearing bracket（40）Set, described water conservancy diversion cover stent（91）Close to the big of round platform
Mouth installation, described propeller（50）With kuppe（90）Coaxially and it is arranged between the big mouth of round platform and osculum.
A kind of 10. propeller according to claim 1, it is characterised in that described rear end cap（80）With motor fixing frame
（10）Junction, motor fixing frame（10）With drive end bearing bracket（40）Junction is equipped with sealing ring, described motor fixing frame（10）
Groove provided with installation sealing ring.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2016/097396 WO2018039937A1 (en) | 2016-08-30 | 2016-08-30 | Propulsive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107636939A true CN107636939A (en) | 2018-01-26 |
| CN107636939B CN107636939B (en) | 2019-12-06 |
Family
ID=61113486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680013494.4A Active CN107636939B (en) | 2016-08-30 | 2016-08-30 | Propeller |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107636939B (en) |
| WO (1) | WO2018039937A1 (en) |
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| CN108494142A (en) * | 2018-05-04 | 2018-09-04 | 天津新茂科技发展有限公司 | A kind of direct current generator output shaft end water-tight device |
| CN108566018A (en) * | 2018-07-09 | 2018-09-21 | 电子科技大学中山学院 | Rotary sealed brushless direct current motor |
| CN108880066A (en) * | 2018-08-21 | 2018-11-23 | 天津长瑞大通流体控制系统有限公司 | Shaft is positive sealing structure and method of the motor in deep-sea of reverse rotation mode |
| CN112937817A (en) * | 2021-02-02 | 2021-06-11 | 华中科技大学鄂州工业技术研究院 | Underwater robot driving device and underwater robot |
| CN113859493A (en) * | 2021-11-12 | 2021-12-31 | 中国船舶科学研究中心 | High-power low-vibration motor direct-drive propulsion device for deep sea |
| CN114275136A (en) * | 2021-12-30 | 2022-04-05 | 深圳市好盈科技有限公司 | Underwater propeller |
| WO2023178699A1 (en) * | 2022-03-25 | 2023-09-28 | 广东逸动科技有限公司 | Electric motor, marine propeller and ship |
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| CN108494142A (en) * | 2018-05-04 | 2018-09-04 | 天津新茂科技发展有限公司 | A kind of direct current generator output shaft end water-tight device |
| CN108494142B (en) * | 2018-05-04 | 2020-09-18 | 天津华顺机电设备维修有限公司 | Waterproof device for output shaft end of direct current motor |
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| CN108880066A (en) * | 2018-08-21 | 2018-11-23 | 天津长瑞大通流体控制系统有限公司 | Shaft is positive sealing structure and method of the motor in deep-sea of reverse rotation mode |
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| CN112937817A (en) * | 2021-02-02 | 2021-06-11 | 华中科技大学鄂州工业技术研究院 | Underwater robot driving device and underwater robot |
| CN113859493A (en) * | 2021-11-12 | 2021-12-31 | 中国船舶科学研究中心 | High-power low-vibration motor direct-drive propulsion device for deep sea |
| CN113859493B (en) * | 2021-11-12 | 2022-08-12 | 中国船舶科学研究中心 | High-power low-vibration motor direct-drive propulsion device for deep sea |
| CN114275136A (en) * | 2021-12-30 | 2022-04-05 | 深圳市好盈科技有限公司 | Underwater propeller |
| WO2023178699A1 (en) * | 2022-03-25 | 2023-09-28 | 广东逸动科技有限公司 | Electric motor, marine propeller and ship |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107636939B (en) | 2019-12-06 |
| WO2018039937A1 (en) | 2018-03-08 |
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Address after: 264404 Zone E, blue venture Valley, No. 40, Yangguang Road, Nanhai new area, Weihai City, Shandong Province Patentee after: Zhendi Technology Co., Ltd Address before: 100107 unit 301, unit a, No. 9, Fulin Road, Chaoyang District, Beijing Patentee before: POWERVISION TECH Inc. |