CN109660057A - A kind of single direction rotation permanent magnet high-speed motor and its two-way air bearing - Google Patents
A kind of single direction rotation permanent magnet high-speed motor and its two-way air bearing Download PDFInfo
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- CN109660057A CN109660057A CN201811576017.6A CN201811576017A CN109660057A CN 109660057 A CN109660057 A CN 109660057A CN 201811576017 A CN201811576017 A CN 201811576017A CN 109660057 A CN109660057 A CN 109660057A
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- rotor
- throttle orifice
- bearing
- radial
- deflection
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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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
- F16C32/0614—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
- F16C32/0696—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for both radial and axial load
-
- 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
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Abstract
The present invention relates to a kind of single direction rotation permanent magnet high-speed motors, including rotor, motor stator, electric machine casing, fore bearing mechanism, rear bearing mechanism and axial thrust mechanism；Fore bearing mechanism and rear bearing mechanism are all provided with the radial throttle orifice of at least one circle and at least one circle deflection throttle orifice, it is uniformly distributed with radial throttle orifice is enclosed around the central axis of rotor, it is also uniformly distributed around the central axis of rotor with circle deflection throttle orifice, radial throttle orifice is arranged radially along rotor, the diameter of deflection throttle orifice and rotor has an angle of deviation, and the skew direction of angle of deviation is rotor direction of rotation；Electric machine casing is equipped with air flue, and air flue extends to fore bearing mechanism, rear bearing mechanism and axial thrust mechanism.The present invention gives rotor radial support force, moreover it is possible to give rotor tangential thrust, be conducive to the increase of rotor speed.30-50% can be improved in Bearning mechanism bearing capacity of the invention, and the revolving speed of rotor can also promote 30-50%.
Description
Technical field
The present invention relates to motor field more particularly to a kind of single direction rotation permanent magnet high-speed motor and its air bearing.
Background technique
With the continuous development of industrial technology, people require the speed and precision of motor higher and higher, and traditional bearing is
It is not able to satisfy the support needs of electric machine main shaft.For gas bearing because of its contactless support pattern, friction and wear is small, is easy to obtain
, no viscosity is pollution-free, therefore its demand for being suitable for high-speed motor, meets its higher revolving speed, more preferably precision, more long-lived
The demand of life.
Air blower is directly driven as Chinese patent 2011101376070 discloses a kind of adjustable high-speed motor of air suspension gas supply,
Stop including compressor impeller, permanent-magnetic synchronous motor rotor, motor stator, preceding radial air bearing, rear radial air bearing, axial direction
Air bearing, volute and electric machine casing are pushed away, one end of permanent-magnetic synchronous motor rotor connects compressor impeller, and motor stator drives forever
The rotation of magnetic-synchro rotor, preceding radial air bearing, rear radial air bearing, axial thrust air bearing suspension support permanent magnetism
Synchronous electric motor rotor, volute be arranged in compressor impeller foreign object, electric machine casing be located at motor stator, preceding radial air bearing, after
The periphery of radial air bearing, axial thrust air bearing and permanent-magnetic synchronous motor rotor.In above-mentioned patent, radial air bearing
Radial gas mainly is provided to bearing clearance, it is made to form the lubrication air film with certain carrying and rigidity in gap, it is main
Effect reduces frictional force, reduces influence of the frictional force to controlling rotation speed of main shaft of motor, can not enhance the revolving speed of electric machine main shaft.
In addition, magneto is the synchronous motor for generating synchronous rotary magnetic field by permanent magnet excitation, permanent magnet is as rotor
Rotating excitation field is generated, energy conversion efficiency is high.Existing motor directlys adopt the permanent magnet of monolith as rotor, and material cost is high,
Poor radiation, and since rigidity is strong, its toughness is leveraged, abrasion is easy to happen.
Summary of the invention
That the purpose of the present invention is to overcome the above shortcomings and to provide a kind of support forces is strong, revolving speed is fast, high conversion efficiency unidirectional
Rotary permanent-magnet high-speed motor.
To achieve the above object, the technical solution of the invention is as follows: a kind of single direction rotation permanent magnet high-speed motor, including electricity
Machine rotor, motor stator, electric machine casing, fore bearing mechanism, rear bearing mechanism and axial thrust mechanism；Motor stator is fixed on electricity
In casing body；Rotor also is located in electric machine casing and passes through motor stator；The front and back end of rotor passes through front axle respectively
It holds mechanism and rear bearing mechanism is supported on shell；After axial thrust mechanism is set in rotor rear end and is fixed on electric machine casing
End；Rotor is permanent magnet machine rotor；Electric machine casing be equipped with air flue, air flue extend to fore bearing mechanism, rear bearing mechanism and
Axial thrust mechanism；Fore bearing mechanism and rear bearing mechanism are all provided with the radial throttle orifice of at least one circle and at least one circle deflection throttling
Hole is uniformly distributed, with circle deflection throttle orifice also around the center of rotor around the central axis of rotor with radial throttle orifice is enclosed
Axis is uniformly distributed, and radial throttle orifice is arranged radially along rotor, and the diameter of deflection throttle orifice and rotor is inclined with one
Oblique angle, the skew direction of angle of deviation are rotor direction of rotation.
Preferably, fore bearing mechanism and rear bearing mechanism all use two-way air bearing, and two-way air bearing is along axial point
It is furnished at least one circle deflection throttle orifice and at least one and encloses radial throttle orifice.
Preferably, two-way air bearing includes two circle deflection throttle orifices and one encloses radial throttle orifice, the radial throttling of a circle
Hole is located at the centre of two circle deflection throttle orifices.
Preferably, fore bearing mechanism and rear bearing mechanism are all by a transverse bearing and deflection bearing, transverse bearing point
It is furnished with the radial throttle orifice of at least one circle, at least one circle deflection throttle orifice is distributed in deflection bearing.
Preferably, rotor is by one block of magnet steel, two pieces of aluminium blocks, front motor shaft assembly, rear motor shaft assembly and coupling band
Pipe is constituted, and two pieces of aluminium blocks are symmetrically set in the two sides of magnet steel, front motor shaft assembly and rear motor shaft assembly and are distinguished by snap fit
It is connected to the end face of two pieces of aluminium blocks, magnet steel, aluminium block, front motor shaft assembly front end, rear motor shaft assembly rear end are all set in shaft coupling
It is interference fit in casing and with adapter(-tor), front motor shaft assembly and rear motor shaft assembly all have the cut-off of diameter convex
Step.
Preferably, electric machine casing includes coolant jacket, shell, drive end bearing bracket and rear end cap；Coolant jacket is nested in shell and it
Both ends use drive end bearing bracket to connect with rear end cap respectively；Fore bearing mechanism, rear bearing mechanism are respectively arranged in drive end bearing bracket and rear end
Lid；The hollow space of shell is major diameter section, conical section and path section, passes through conical section transition between major diameter section and path section；It is cold
But the one end covered is nested in path section, and rest part is limited to major diameter section and conical section；The side-wall outer side of coolant jacket is integrally formed
There is spiral rib, spiral rib is used to the space between coolant jacket and shell being separated into spiral helicine cyclic water channel；Shell
Side wall forms the inlet tube and outlet tube being axially arranged, and feed liquor through-hole and out fluid through-hole, outside are provided on the inside of side wall of outer shell
Inlet and liquid outlet are provided on the outside of wall, feed liquor through-hole and inlet are all connected to inlet tube, and fluid through-hole and fluid hole be all out
It is connected to outlet tube, feed liquor through-hole and out fluid through-hole are respectively communicated in the both ends of cyclic water channel；The lateral wall of shell also drives gas into
Mouthful, the side wall of shell is installed with axial axial air flue, and front and rear cover is all provided with radial air flue, and air inlet is connected to axial air flue,
Axial air flue both ends are connected to the radial air flue of two sides respectively, radial air flue extend to two-way air bearing, transverse bearing and/or
The periphery of deflection bearing.
Preferably, axial thrust mechanism include the thrust disk cover being arranged from front to back, front end face nozzle carrier, thrust button, after
End face nozzle carrier and gland；Front/rear end nozzle carrier is all provided with axial setting venthole；Front end face nozzle carrier and thrust disk cover it
Between be formed with the first air cavity, the radial air flue of rear end cap is connected to the first air cavity；Rear end face nozzle carrier and gland are also formed with the
Two air cavitys, the second air cavity are in communication with the outside；Thrust button is fixed on the rear end of rotor.
The invention also discloses a kind of two-way air bearing.Two-way air bearing is axially distributed at least one circle deflection section
Discharge orifice and at least one encloses radial throttle orifice, and radial throttle orifice is arranged radially along rotor, deflection throttle orifice and rotor
Diameter there is an angle of deviation, the skew direction of angle of deviation is electronics rotor direction of rotation.
It further, include that two circle deflection throttle orifices and one enclose radial throttle orifice, one, which encloses radial throttle orifice, is located at two circles
Between deflection throttle orifice.
Further, 3-12 deflection throttle orifice is distributed in a circle deflection throttle orifice, and angle of deviation is 30-60 °；One circle is radial
3-12 radial throttle orifice is distributed in throttle orifice.
By using above-mentioned technical solution, the beneficial effects of the present invention are: the Bearning mechanism of supporting motor rotor, in addition to
There is radial throttle orifice, being used to form air film makes shaft float gas；There are also the deflection throttle orifice led to is rotated with rotor, in addition to energy
Enough give shaft radial support power, moreover it is possible to give shaft tangential thrust, be conducive to the increase of rotor speed.By above-mentioned design,
Bearning mechanism bearing power increase of the invention 30-50%, the revolving speed of rotor can also promote 30-50%.
Rotor uses multi-segment structure, is separated between magnet steel and motor shaft assembly by aluminium block, the hardness of aluminium block is lower than
Magnet steel, the two are compared, and aluminium block has " elasticity ", are conducive to the vibration for reducing rotor, while aluminium block thermal diffusivity is good, is conducive to motor
The heat dissipation of rotor.
Coolant jacket is integrally formed with spiral rib, so that the space of coolant jacket and shell is divided into spiral helicine recirculated water
Road, structure is simple, easy to process, is conducive to the quick assembling of equipment, while having good cooling effect.And shell is hollow
Portion is constituted using multistage, including guide section, major diameter section, conical section, path section, is conducive to coolant jacket and is quickly and accurately nested in
In shell, production efficiency of equipment is improved.
Detailed description of the invention
Fig. 1 is the right view of two-way air bearing；
Fig. 2 is the cross-sectional view at two-way air bearing A and B；
Fig. 3 is the cross-sectional view at two-way air bearing C；
Fig. 4 is the structural perspective of two-way air bearing lower right；
Fig. 5 is the schematic perspective view of embodiment 2,4,5；
Fig. 6 is the schematic perspective view for implementing 3；
Fig. 7 is the cross-sectional view of embodiment 2,4,5；
Fig. 8 is the cross-sectional view of embodiment 3；
Fig. 9 is the cross-sectional view of deflection bearing；
Figure 10 is the cross-sectional view of transverse bearing
Figure 11 is the structural schematic diagram of embodiment 4-5 rotor；
Figure 12 is the structural schematic diagram of coolant jacket；
The cross-sectional view of Figure 13 shell；
Figure 14 is the side view of shell；
Figure 15 is the cross-sectional view at shell l；
Main appended drawing reference explanation: (11, deflection throttle orifice；12, radial throttle orifice；2, rotor；21, magnet steel；22,
Aluminium block；23, front motor shaft assembly；24, rear motor shaft assembly；25, adapter(-tor)；26, end step；3, motor stator；4, electric
Casing body；41, drive end bearing bracket；42, rear end cap；43, air inlet；44, axial air flue；45, radial air flue；46, shell；461, it is oriented to
Section；462, major diameter section；463, conical section；464, path section；47, coolant jacket；471, spiral rib；472, limiting slot；551, double
To air bearing；2, transverse bearing；53, deflection bearing；61, thrust disk cover；62, front end face nozzle carrier；63, thrust button；64, after
End face nozzle carrier；65, gland；66, the first air cavity；67, the second air cavity；71, vortex supercharging impeller；72, centrifuge front shroud；73 whirlpools
Shell；81, inlet tube；82, outlet tube；83, feed liquor through-hole；84, go out fluid through-hole；85, inlet；86, liquid outlet).
Specific embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
It should be noted that the Directional words mentioned in the present invention, such as: upper and lower, front, rear, left and right etc., be for
Convenient for the description present invention and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
Embodiment 1
As shown in Figs 1-4, a kind of two-way air bearing, including bearing body.Bearing body is axially distributed at least one
It encloses deflection throttle orifice 11 and at least one and encloses radial throttle orifice 12.Deflection throttle orifice 11 refers to that the diameter of itself and rotor has one
Angle of deviation a, and the skew direction of angle of deviation a is rotor direction of rotation, the angle of angle of deviation a is 30-60 °.Radial throttling
Hole 12 refers to its being arranged radially along rotor.Deflection throttle orifice 11 with circle divides around the central axis even circumferential of rotor
3-12 deflection throttle orifice 11 can be distributed in cloth, every circle deflection throttle orifice 11.Radial throttle orifice 12 with circle is also around motor
The central axis even circumferential of rotor point, the radial throttle orifice 12 of every circle can distinguish 3-12 radial throttle orifice 12.
As shown in Figures 2 and 3, two circle deflection throttle orifices 11 and one are axially distributed in the present embodiment and enclose radial throttle orifice 12,
One encloses the centre that radial throttle orifice 12 is located at two circle deflection throttle orifices 11.Every circle deflection throttle orifice 11 has 8 deflection throttle orifices 11,
Its angle of deviation is 45 °；And the radial throttle orifice 12 of every circle has 8 radial throttle orifices.
As shown in figure 4, the peripheral surface of bearing body has radial flange, these pass through these flanges for adjacent ring layer
Throttle orifice (11,12) separates, but the position that flange corresponds to throttle orifice is provided with notch, so that air is between multi-turn layer throttle orifice
Circulation.
Orifice design of the invention is consistent with the orifice design of existing air bearing, in inner small and outside big convex knot
Structure.
Embodiment 2
As shown in Fig. 5,7, a kind of single direction rotation permanent magnet high-speed motor, including rotor 2, motor stator 3, electric machine casing
4, fore bearing mechanism, rear bearing mechanism and axial thrust mechanism.
The front and back bearings mechanism of the present embodiment is consistent, by the two-way air bearing of one embodiment 1.Before electric machine casing 4
End cap 41 and rear end cap 42 are each set with a two-way air bearing 51, front and rear cover (41,42) one end of the present embodiment
It is embedded in electric machine casing 4.Motor stator 3 is fixed in the chamber of electric machine casing 4.Rotor 2 is worn in the middle part of motor stator 3
It crosses, and rear and front end is supported on the two-way air bearing 51 of front and back respectively.
As shown in fig. 7, the axial thrust mechanism of the present embodiment mainly includes thrust button 63, washer and gland 65, these portions
Part is successively laid before and after the central axis of rotor 2, and thrust button 63 is in close proximity to the trailing flank of rear end cap 42.Screw bolt passes
Gland 65, washer finally lock in rear end cap 42.Thrust button 63 is sandwiched between rear end cap 42 and gland 65, outside thrust button 63
It encloses with washer, it is made to be isolated from the outside.Meanwhile thrust button 63 and rotor 2 are clearance fit, and are fixed by bolts in
The rear end of rotor 2.The first air cavity 66 is formed between the thrust button 63 and gland 65 of the present embodiment.
4 lateral wall of electric machine casing also drives port 43 into, and 4 side wall of electric machine casing is installed with the axial air flue 44 being axially arranged, preceding
Rear end cap (41,42) is all provided with radial air flue 45, and air inlet 43 is connected to axial air flue 44, and axial 44 both ends of air flue are respectively with two
The radial air flue 45 of side is connected to, and radial air flue 45 extends to two-way air bearing 51 and rear end cap 42, and the radial direction of rear end cap 42
Air flue 45 is also connected to the first air cavity 66.
Mechanism mainly passes through the first air cavity 66 and pushes thrust button 63 forward, avoids the play forward of rotor 2.
To further illustrate application of the invention, the present embodiment motor is as the driving device of the additional turbine of centrifuge
Example, the front end of rotor 2, which is stretched out outside electric machine casing 4 and is keyed, vortex supercharging impeller 71.Electric machine casing 4 and the increasing that is vortexed
It is separated between pressure impeller 71 by centrifuge front shroud 72.The peripheral volute 73 of vortex supercharging impeller 71.
Embodiment 3
As shown in fig. 6, a kind of single direction rotation permanent magnet high-speed motor, including rotor 2, motor stator 3, electric machine casing 4,
Fore bearing mechanism, rear bearing mechanism and axial thrust mechanism.
As shown in figs. 9-10, the front and back bearings mechanism of the present embodiment is symmetrical, is all inclined by a transverse bearing 52 and one
Angle pedestal bearing 53 is constituted.The drive end bearing bracket 41 and rear end cap 42 of electric machine casing 4 are each set with a transverse bearing 52 and one inclined
Angle pedestal bearing 53, the front and rear cover (41,42) of the present embodiment is in I-shaped.Motor stator 3 is fixed in the chamber of electric machine casing 4.
Rotor 2 passes through in the middle part of motor stator 3, and rear and front end is supported on the transverse bearing 52 and deflection bearing of front and back respectively
53.Two circle radial direction throttle orifices 12 are distributed in 52 transverse bearing of transverse bearing, and the radial throttle orifice 12 of every circle has 8 radial throttle orifices
12.Two circle deflection throttle orifices 11 are distributed in deflection bearing 53, and every circle deflection bearing 53 has 8 deflection throttle orifices 11, deflection throttling
The diameter of hole 11 and rotor 2 has an angle of deviation b, and the skew direction of angle of deviation b is rotor direction of rotation, deflection
The angle of angle b is 45 °.
Shown in Fig. 8, the axial thrust mechanism of the present embodiment mainly includes thrust disk cover 61, front end face nozzle carrier 62, thrust
Disk 63, washer, rear end face nozzle carrier 64 and gland 65, these components are successively laid before and after the central axis of rotor 2, thrust
Disk cover 61 is in close proximity to the trailing flank of rear end cap 42.Screw bolt passes gland 65, rear end face nozzle carrier 64, washer, front end face spray
Mouth seat 62, thrust disk cover 61, finally lock in rear end cap 42.Thrust button 63 is sandwiched in front end face nozzle carrier 62 and rear end face nozzle carrier
Between 64, and its periphery makes it be isolated from the outside by washer.Meanwhile thrust button 63 and rotor 2 are clearance fit, and logical
Cross the rear end that bolt is fixed on rotor 2.Is formed between the front end face nozzle carrier 62 and thrust disk cover 61 of the present embodiment
One air cavity 66, and rear end cap nozzle carrier 64 and gland also form the second air cavity 67, front end face nozzle carrier 62 and rear end face nozzle
Seat 64 is all provided with axial setting venthole (not shown) for being directed at thrust button 61.This structure is the reinforcement of axial anti-thrust structure
Version, complicated motor more for number of bearings.
4 lateral wall of electric machine casing also drives port 43 into, and 4 side wall of electric machine casing is installed with the axial air flue 44 being axially arranged, preceding
Rear end cap (41,42) is all provided with radial air flue 45, and air inlet 43 is connected to axial air flue 44, and axial 44 both ends of air flue are respectively with two
The radial air flue 45 of side is connected to, and radial air flue 45 extends to transverse bearing 52, deflection bearing 53 and rear end cap 42, and rear end cap 42
Radial air flue 45 be also connected to the first air cavity 66 through thrust disk cover 61, the second air cavity 67 is then by the through-hole of gland 65 and extraneous
Connection.
Mechanism mainly passes through the pressure official post thrust button 63 between the first air cavity 66 and the second air cavity 67 and reaches balance, keeps away
Exempt from 2 front and back play of rotor, stability is stronger.
To further illustrate application of the invention, the present embodiment motor is as the driving device of the additional turbine of centrifuge
Example, the front end of rotor 2, which is stretched out outside electric machine casing 4 and is keyed, vortex supercharging impeller 71.Electric machine casing 4 and the increasing that is vortexed
It is separated between pressure impeller 71 by centrifuge front shroud 72.The peripheral volute 73 of vortex supercharging impeller 71.
Embodiment 4
As shown in Fig. 5,7, a kind of single direction rotation permanent magnet high-speed motor, including rotor 2, motor stator 3, electric machine casing
4, fore bearing mechanism, rear bearing mechanism and axial thrust mechanism.
The front and back bearings mechanism of the present embodiment is consistent, by the two-way air bearing of one embodiment 1.Before electric machine casing 4
End cap 41 and rear end cap 42 are each set with a two-way air bearing 51, front and rear cover (41,42) one end of the present embodiment
It is embedded in electric machine casing 4.Motor stator 3 is fixed in the chamber of electric machine casing 4.Rotor 2 is worn in the middle part of motor stator 3
It crosses, and rear and front end is supported on the two-way air bearing 51 of front and back respectively.
As shown in figure 11, rotor 2 is by one block of magnet steel, 21, two pieces of aluminium blocks 22, front motor shaft assembly 23, rear motor shaft group
Part 24 and adapter(-tor) 25 are constituted.Two pieces of aluminium blocks 22 are symmetrically set in the two sides of magnet steel 21, and front motor shaft assembly 23 and rear motor
Shaft assembly 24 is connected to the end face of two pieces of aluminium blocks 22 by snap fit.Magnet steel 21, aluminium block 22, front motor shaft assembly front end
23, rear 24 rear end of motor shaft assembly is all set in adapter(-tor) 25 and is interference fit with adapter(-tor) 25.For convenient for fixed
Hyte dress, front motor shaft assembly 23 and rear motor shaft assembly 24 are all with the cut-off step 26 of diameter convex.
As shown in fig. 7, the axial thrust mechanism of the present embodiment mainly includes thrust button 63, washer and gland 65, these portions
Part is successively laid before and after the central axis of rotor 2, and thrust button 63 is in close proximity to the trailing flank of rear end cap 42.Screw bolt passes
Gland 65, washer finally lock in rear end cap 42.Thrust button 63 is sandwiched between rear end cap 42 and gland 65, outside thrust button 63
It encloses with washer, it is made to be isolated from the outside.Meanwhile thrust button 63 and rotor 2 are clearance fit, and are fixed by bolts in
The rear end of rotor 2.The first air cavity 66 is formed between the thrust button 63 and gland 65 of the present embodiment.
4 lateral wall of electric machine casing also drives port 43 into, and 4 side wall of electric machine casing is installed with the axial air flue 44 being axially arranged, preceding
Rear end cap (41,42) is all provided with radial air flue 45, and air inlet 43 is connected to axial air flue 44, and axial 44 both ends of air flue are respectively with two
The radial air flue 45 of side is connected to, and radial air flue 45 extends to two-way air bearing 51 and rear end cap 42, and the radial direction of rear end cap 42
Air flue 45 is also connected to the first air cavity 66.
Mechanism mainly passes through the first air cavity 66 and pushes thrust button 63 forward, avoids the play forward of rotor 2.
To further illustrate application of the invention, the present embodiment motor is as the driving device of the additional turbine of centrifuge
Example, the front end of rotor 2, which is stretched out outside electric machine casing 4 and is keyed, vortex supercharging impeller 71.Electric machine casing 4 and the increasing that is vortexed
It is separated between pressure impeller 71 by centrifuge front shroud 72.The peripheral volute 73 of vortex supercharging impeller 71.
Embodiment 5
As shown in figure 5, a kind of single direction rotation permanent magnet high-speed motor, including rotor 2, motor stator 3, electric machine casing 4,
Fore bearing mechanism, rear bearing mechanism and axial thrust mechanism.
The front and back bearings mechanism of the present embodiment is consistent, by the two-way air bearing of one embodiment 1.Before electric machine casing 4
End cap 41 and rear end cap 42 are each set with a two-way air bearing 51, front and rear cover (41,42) one end of the present embodiment
It is embedded in electric machine casing 4.Motor stator 3 is fixed in the chamber of electric machine casing 4.Rotor 2 is worn in the middle part of motor stator 3
It crosses, and rear and front end is supported on the two-way air bearing 51 of front and back respectively.
As shown in figure 11, rotor 2 is by one block of magnet steel, 21, two pieces of aluminium blocks 22, front motor shaft assembly 23, rear motor shaft group
Part 24 and adapter(-tor) 25 are constituted.Two pieces of aluminium blocks 22 are symmetrically set in the two sides of magnet steel 21, and front motor shaft assembly 23 and rear motor
Shaft assembly 24 is connected to the end face of two pieces of aluminium blocks 22 by snap fit.Magnet steel 21, aluminium block 22, front motor shaft assembly front end
23, rear 24 rear end of motor shaft assembly is all set in adapter(-tor) 25 and is interference fit with adapter(-tor) 25.For convenient for fixed
Hyte dress, front motor shaft assembly 23 and rear motor shaft assembly 24 are all with the cut-off step 26 of diameter convex.
As shown in figs. 11 and 15, electric machine casing 4 includes coolant jacket 47, shell 46, drive end bearing bracket 41 and rear end cap 42.Coolant jacket
It is nested in shell 46, front and rear cover (41,42) is fixed by the both ends that bolt locks in coolant jacket 47 and shell 46 using by them
It links together.
The inner sidewall of coolant jacket 47 is equipped with stator and limits rib 471, for accurate, the Fast Installation for realizing motor stator 3.
The hollow space of shell 46 is followed successively by guide section 461, major diameter section 462, conical section 463 and path section 464.Guide section
461 are gradually reduced from outside to inside, and the side wall angle c of side wall and major diameter section 462 is 15 °.The diameter smaller radial section of major diameter section 11
At least big 2cm of 13 diameter, the two form diameter difference, and the lesser head for being conducive to coolant jacket 47 is quickly embedded in.Major diameter section 462
Angle d between conical section 463 is 165 °.Pass through 463 transition of conical section between major diameter section 462 and path section 464.
The side-wall outer side of coolant jacket 47 is integrally formed with spiral rib 471, and spiral rib 471 is for by coolant jacket 47 and outside
Space between shell 46 is separated into spiral helicine cyclic water channel.The left and right ends of 47 side-wall outer side of coolant jacket are all integrally formed limited
Position slot 472, all there are two adjacent limiting slot 472, limiting slot 472 is interior (not to be shown embedded with sealing ring at every end of coolant jacket 47
Out), prevent coolant liquid from revealing.When coolant jacket 47 is flush-mounted in shell 46, the limiting slot 472 of 47 right end of coolant jacket is located at path section
464, other parts include that the limiting slot 472 of left end is then all located at major diameter section 462 and conical section 463.
The side wall of shell 46 forms the inlet tube 81 being axially arranged, outlet tube 82 and axial air flue 44.Inlet tube 81 is
It is drilled backward by the annulus end face of 2 front side of shell, is the blind hole not through housing shell, then block inlet tube with sealing-plug
81 open end.Outlet tube 82 is drilled forward by the annulus end face of 46 rear side of housing, is similarly not through the blind of housing
Hole, and the open end of outlet tube 82 is equally blocked with sealing-plug.Inlet tube 81 is connected to cyclic water channel by feed liquor through-hole 83, out
Liquid pipe 82 is connected to cyclic water channel by going out fluid through-hole 84.Feed liquor through-hole 83 by 46 side wall of shell radially inside outward drilling and
At also radially inside the drilling outward by 46 side wall of shell of fluid through-hole 84 out.Feed liquor through-hole 83 and out fluid through-hole 84 are distinguished
It is connected to the rear and front end of cyclic water channel.The inlet 85 of inlet tube 81 and the liquid outlet 86 of outlet tube 82 are located at 1 side wall of shell
Lateral surface.The outer radial of inlet 85 from 46 side wall of shell is formed to internal drilling, and liquid outlet 86 is from outside 46 side wall of shell
Side radially-inwardly drills.
As shown in fig. 7, the axial thrust mechanism of the present embodiment mainly includes thrust button 63, washer and gland 65, these portions
Part is successively laid before and after the central axis of rotor 2, and thrust button 63 is in close proximity to the trailing flank of rear end cap 42.Screw bolt passes
Gland 65, washer finally lock in rear end cap 42.Thrust button 63 is sandwiched between rear end cap 42 and gland 65, outside thrust button 63
It encloses with washer, it is made to be isolated from the outside.Meanwhile thrust button 63 and rotor 2 are clearance fit, and are fixed by bolts in
The rear end of rotor 2.The first air cavity 66 is formed between the thrust button 63 and gland 65 of the present embodiment.
Front and rear cover (41,42) is all provided with radial air flue 45, and air inlet 43 is connected to axial air flue 44,44 liang of axial air flue
End is connected to the radial air flue 45 of two sides respectively, and radial air flue 45 extends to two-way air bearing 51 and rear end cap 42, and rear end
The radial air flue 45 of lid 42 is also connected to the first air cavity 66.
Mechanism mainly passes through the first air cavity 66 and pushes thrust button 63 forward, avoids the play forward of rotor 2.
To further illustrate application of the invention, the present embodiment motor is as the driving device of the additional turbine of centrifuge
Example, the front end of rotor 2, which is stretched out outside electric machine casing 4 and is keyed, vortex supercharging impeller 71.Electric machine casing 4 and the increasing that is vortexed
It is separated between pressure impeller 71 by centrifuge front shroud 72.The peripheral volute 73 of vortex supercharging impeller 71.
Above-described, only presently preferred embodiments of the present invention cannot limit the scope of implementation of the present invention, it is all according to
Equivalent change made by scope of the present invention patent and decoration, should still belong in the range of the present invention covers.
Claims (10)
1. a kind of single direction rotation permanent magnet high-speed motor, including rotor, motor stator, electric machine casing, fore bearing mechanism, rear axle
Hold mechanism and axial thrust mechanism；Motor stator is fixed in electric machine casing；Rotor also is located in electric machine casing and passes through
Motor stator；The front and back end of rotor passes through fore bearing mechanism respectively and rear bearing mechanism is supported on electric machine casing；Axially stop
Pushing mechanism is set in rotor rear end and is fixed on electric machine casing rear end；Rotor is permanent magnet machine rotor；Electric machine casing
Equipped with air flue, air flue extends to fore bearing mechanism, rear bearing mechanism and axial thrust mechanism；It is characterized by: fore bearing mechanism
It is all provided with the radial throttle orifice of at least one circle and at least one circle deflection throttle orifice with rear bearing mechanism, with the radial throttle orifice of circle around motor
The central axis of rotor is uniformly distributed, and is also uniformly distributed around the central axis of rotor with deflection throttle orifice is enclosed, radial throttle orifice edge
Rotor is arranged radially, and the diameter of deflection throttle orifice and rotor has an angle of deviation, and the skew direction of angle of deviation is
Rotor direction of rotation.
2. single direction rotation permanent magnet high-speed motor according to claim 1, it is characterised in that: fore bearing mechanism and rear bearing mechanism
Two-way air bearing is all used, two-way air bearing is axially distributed at least one circle deflection throttle orifice and the radial section of at least one circle
Discharge orifice.
3. single direction rotation permanent magnet high-speed motor according to claim 2, it is characterised in that: two-way air bearing includes two circles
Deflection throttle orifice and one encloses radial throttle orifice, and one encloses the centre that radial throttle orifice is located at two circle deflection throttle orifices.
4. single direction rotation permanent magnet high-speed motor according to claim 1, it is characterised in that: fore bearing mechanism and rear bearing mechanism
It is all by a transverse bearing and deflection bearing, the radial throttle orifice of at least one circle is distributed in transverse bearing, and deflection bearing is distributed with
At least one circle deflection throttle orifice.
5. any one of -4 single direction rotation permanent magnet high-speed motor according to claim 1, it is characterised in that: rotor is by one piece
Magnet steel, two pieces of aluminium blocks, front motor shaft assembly, rear motor shaft assembly and adapter(-tor) are constituted, and two pieces of aluminium blocks are symmetrically set in magnet steel
Two sides, front motor shaft assembly and rear motor shaft assembly are connected to the end face of two pieces of aluminium blocks, magnet steel, aluminium by snap fit
Block, front motor shaft assembly front end, rear motor shaft assembly rear end are all set in adapter(-tor) and match with adapter(-tor) for interference
Conjunction, front motor shaft assembly and rear motor shaft assembly all have the cut-off step of diameter convex.
6. single direction rotation permanent magnet high-speed motor according to claim 5, it is characterised in that: electric machine casing includes coolant jacket, outer
Shell, drive end bearing bracket and rear end cap；Coolant jacket is nested in shell and their both ends use drive end bearing bracket to connect with rear end cap respectively；Front axle
Hold mechanism, rear bearing mechanism is respectively arranged in drive end bearing bracket and rear end cap；The hollow space of shell is major diameter section, conical section and path
Section passes through conical section transition between major diameter section and path section；One end of coolant jacket is nested in path section, and rest part is limited to greatly
Diameter section and conical section；The side-wall outer side of coolant jacket integrally formed with spiral rib, spiral rib be used for by coolant jacket and shell it
Between space be separated into spiral helicine cyclic water channel；The side wall of shell forms the inlet tube and outlet tube being axially arranged, shell
Be provided with feed liquor through-hole and out fluid through-hole on the inside of side wall, be provided with inlet and liquid outlet on the outside of lateral wall, feed liquor through-hole and into
Liquid mouth is all connected to inlet tube, and fluid through-hole and fluid hole are all connected to outlet tube out, feed liquor through-hole and fluid through-hole is respectively communicated with out
In the both ends of cyclic water channel；The lateral wall of shell also drives port into, and the side wall of shell is installed with axial axial air flue, front and rear cover
It is all provided with radial air flue, air inlet is connected to axial air flue, and axial air flue both ends are connected to the radial air flue of two sides respectively, radial
Air flue extends to the periphery of two-way air bearing, transverse bearing and/or deflection bearing.
7. single direction rotation permanent magnet high-speed motor according to claim 5, it is characterised in that: axial thrust mechanism include by it is preceding extremely
Thrust disk cover, front end face nozzle carrier, thrust button, rear end face nozzle carrier and the gland being arranged afterwards；Front/rear end nozzle carrier is all provided with
Axial setting venthole；The first air cavity, the radial air flue of rear end cap and are formed between front end face nozzle carrier and thrust disk cover
The connection of one air cavity；Rear end face nozzle carrier and gland are also formed with the second air cavity, and the second air cavity is in communication with the outside；Thrust button is fixed on
The rear end of rotor.
8. a kind of two-way air bearing, it is characterised in that: two-way air bearing is axially distributed at least one circle deflection throttle orifice
At least one encloses radial throttle orifice, and radial throttle orifice is arranged radially along rotor, deflection throttle orifice and rotor it is straight
Diameter has an angle of deviation, and the skew direction of angle of deviation is electronics rotor direction of rotation.
9. two-way air bearing according to claim 7, it is characterised in that: include that two circle deflection throttle orifices and a circle are radial
Throttle orifice, one, which encloses radial throttle orifice, is located between two circle deflection throttle orifices.
10. two-way air bearing according to claim 9, it is characterised in that: a circle deflection throttle orifice is distributed with 3-12 partially
Oblique throttle orifice, angle of deviation are 30-60 °；One, which encloses radial throttle orifice, is distributed with 3-12 radial throttle orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576017.6A CN109660057A (en) | 2018-12-22 | 2018-12-22 | A kind of single direction rotation permanent magnet high-speed motor and its two-way air bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576017.6A CN109660057A (en) | 2018-12-22 | 2018-12-22 | A kind of single direction rotation permanent magnet high-speed motor and its two-way air bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109660057A true CN109660057A (en) | 2019-04-19 |
Family
ID=66115776
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811576017.6A Pending CN109660057A (en) | 2018-12-22 | 2018-12-22 | A kind of single direction rotation permanent magnet high-speed motor and its two-way air bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932465A (en) * | 2019-12-10 | 2020-03-27 | 无锡市源昌机械制造有限公司 | High-speed motor |
| CN114992245A (en) * | 2022-07-12 | 2022-09-02 | 安徽润安思变能源技术有限公司 | Static pressure gas radial bearing and mounting equipment thereof |
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| TW201706511A (en) * | 2015-05-19 | 2017-02-16 | Li-Feng Luo | Ultra-high speed turbocharger |
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| CN209805569U (en) * | 2018-12-22 | 2019-12-17 | 泉州鑫鸿海机械设备有限公司 | Unidirectional rotation permanent magnet high-speed motor and bidirectional air bearing thereof |
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| US20040213488A1 (en) * | 1999-09-03 | 2004-10-28 | Sumitomo Electric Industries, Ltd. | Htdrodynamic bearing assembly and spindle motor having the same |
| CN101786256A (en) * | 2009-11-20 | 2010-07-28 | 无锡机床股份有限公司 | Improved grinding wheel spindle using air bearing |
| CN102223007A (en) * | 2011-06-24 | 2011-10-19 | 罗立峰 | High-speed permanent magnet motor/generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110932465A (en) * | 2019-12-10 | 2020-03-27 | 无锡市源昌机械制造有限公司 | High-speed motor |
| CN114992245A (en) * | 2022-07-12 | 2022-09-02 | 安徽润安思变能源技术有限公司 | Static pressure gas radial bearing and mounting equipment thereof |
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