CN105889324B

CN105889324B - A kind of small micro turbine generator

Info

Publication number: CN105889324B
Application number: CN201610329245.8A
Authority: CN
Inventors: 罗立峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-05-19
Filing date: 2016-05-18
Publication date: 2019-01-04
Anticipated expiration: 2036-05-18
Also published as: CN205858958U; CN205858478U; CN105888819A; CN106026491A; CN105888819B; TWI676735B; WO2016184411A1; WO2016184407A1; WO2016184413A1; WO2016184405A1; CN205864142U; TW201711350A; CN205858960U; WO2016184409A1; CN205858493U; WO2016184417A1; CN105889325A; TWI676734B; CN106026491B; CN205858959U

Abstract

The invention discloses a kind of small micro turbine generators, it includes turbine, radiator fan, motor, 2 transverse bearings and 1 thrust bearing, the transverse bearing is hybrid kinetic pressure gas transverse bearing, the thrust bearing is hybrid kinetic pressure gas thrust bearing, the rotor is set in the middle part of inner shaft, 2 transverse bearings are respectively sleeved on the outer shaft at the left and right end of rotor, the thrust bearing is set in the outer end side on the outer shaft of right end and being located at right end transverse bearing, and the turbine and radiator fan are separately positioned on the both ends of inner shaft.Present invention can be implemented in the ultrahigh speed steady runnings under air bearing state can make the volume of turbogenerator be substantially reduced realization micromation for equal-wattage requirement.

Description

A kind of small micro turbine generator

Technical field

The present invention is to be related to a kind of small micro turbine generator, belongs to high-accuracy field of mechanical technique.

Background technique

In recent years, with the development of distributed power supply and more power technologies, electric system slowly replaces conventional aircraft In the mechanical systems such as hydraulic, air pressure so that secondary side power system is allocated in form of electricity, how electric, full electricity flight Device has become the present age new developing direction.It is mostly electric that power-supply system based on small micro turbine generator will become a new generation The important research direction of aircraft power system, principle are to utilize the high-speed flow during combustion gas wake flame and aircraft flight Turbine rotation is driven to generate electricity.

Since there is limit speeds for traditional oils system bearing, when shaft revolving speed oversteps the extreme limit revolving speed, bearing can fail, because This has been unable to meet the requirement of small micro turbine generator.And air-bearing is small with its frictional dissipation, high-temperature stability is good, High reliablity, it is with small vibration, do not need lubricating oil, by shaft size the series of advantages such as do not limited, be increasingly becoming industry The hot spot paid close attention to academia, such as: a kind of exhaust turbine generation is disclosed in Chinese patent application CN201310703932.8 Machine, using 2 radial air foil bearings and 1 air foil thrust bearing, to overcome traditional bearing work under high-speed and high-temperature To make the defect for being easy failure, has many advantages, such as that frictional dissipation is small, can work under high temperature environment, exhaust energy recovery efficiency is high, But since foil bearing is generally adopted by metal foil, not only there is also some on material manufacturing technology and technology Problem, and the damping value of bearing is unable to large increase, causes the rigidity of bearing inadequate, the critical speed of bearing is lower, in height Easy unstability is even stuck when speed operating, and the stability to run at high speed is bad, and revolving speed raising is limited, so that industrial application is by office Limit.

Summary of the invention

In view of the above-mentioned problems existing in the prior art, the object of the present invention is to provide one kind can stablize the small micro- of high-speed cruising Type turbogenerator.

To achieve the above object, The technical solution adopted by the invention is as follows:

A kind of small micro turbine generator, including turbine, radiator fan, motor, 2 transverse bearings and 1 thrust shaft It holds, the turbine includes turbine, turbine cylinder, turbine fluid director of machine and turbine fluid director of machine shell, the radiator fan Including blower-casting, the motor includes rotor, stator, inner shaft, outer shaft and electric machine casing；It is characterized by: the radial axle It holds as hybrid kinetic pressure gas transverse bearing, including bearing outside, bearing inner sleeve and is arranged between bearing outside and inner sleeve Foil-type elastic component；The thrust bearing is hybrid kinetic pressure gas thrust bearing, including two side panels and is folded in two sides Mid-game between disk is equipped with foil-type elastic component between each side panel and mid-game；The rotor is set in the middle part of inner shaft, and 2 A transverse bearing is respectively sleeved on the outer shaft at the left and right end of rotor, and the thrust bearing is set on the outer shaft of right end, simultaneously Positioned at the outer end side of right end transverse bearing, the turbine and radiator fan are separately positioned on the both ends of inner shaft.

As a kind of embodiment, the left end of inner shaft is arranged in the turbine, and inner shaft is arranged in the radiator fan Right end.

As further embodiment, the small micro turbine generator further includes left radial axle bearing sleeve and left bearing room End cap, turbine cylinder are fixedly connected with turbine fluid director of machine shell, and turbine fluid director of machine shell is fixed with left bearing room end cap Connection, left bearing room end cap are fixedly connected with left radial axle bearing sleeve, and left radial axle bearing sleeve is fixedly connected with electric machine casing.

As further embodiment, the small micro turbine generator further includes right radial axle bearing sleeve and right bearing room End cap, blower-casting are fixedly connected with right bearing room end cap, and right bearing room end cap is fixedly connected with right radial axle bearing sleeve, right radial direction Bearing holder (housing, cover) is fixedly connected with electric machine casing, and the radiator fan is provided at the inner shaft between right bearing room end cap and blower-casting On.

Preferably, several open slots are offered in the inner wall side of electric machine casing, is opened in the end face of electric machine casing Equipped with several ventholes, the open slot is connected with venthole, in favor of the importing and export of gas, on the one hand realizes quick Heat dissipation exhaust, another side are realized to carrying out air supply in bearing chamber.

Preferably, several gas vents are offered in the side of left bearing room end cap, in the outer end face of blower-casting On offer several air inlets.

Preferably, the outer circumference surface of the bearing inner sleeve and both ends of the surface all have the slot type decorative pattern of regular shape.

As further preferred scheme, the slot type decorative pattern of an end face of the bearing inner sleeve and the slot type decorative pattern of other end Form the radial profile of the axial profile line of the slot type decorative pattern of mirror symmetry and outer circumference surface and the slot type decorative pattern of both ends of the surface It is respectively formed and corresponds and mutually join.

The high bit line of axial direction and two as further preferred scheme, in the slot type decorative pattern of the outer circumference surface of the bearing inner sleeve The high bit line of radial direction in the slot type decorative pattern of end face is homogeneously corresponding and mutually joins before the peripheral chamfer of end face；The slot of outer circumference surface Axial neutrality line in formula decorative pattern is corresponding with the radial neutrality line in the slot type decorative pattern of both ends of the surface and in end face peripheral chamfer Preceding mutual handover；Axial low-bit line in the slot type decorative pattern of outer circumference surface and the radial low-bit line in the slot type decorative pattern of both ends of the surface are equal It is corresponding and mutually join before the peripheral chamfer of end face.

As further preferred scheme, in the mating surface for the foil-type elastic component that the outer circumference surface with bearing inner sleeve matches Equipped with wear-resistant coating.

As further preferred scheme, the fit clearance of the foil-type elastic component and bearing inner sleeve is 0.003~ 0.008mm。

As further preferred scheme, the both ends of the foil-type elastic component are each attached to the inner peripheral wall of bearing outside On.

As further preferred scheme, the foil-type elastic component is multiple and uniform along the inner peripheral wall of bearing outside Distribution.

As further preferred scheme, the card slot for fixing foil-type elastic component is equipped in the inner peripheral wall of bearing outside.

As further preferred scheme, only ring is equipped at the both ends of bearing outside.

Preferably, the both ends of the surface of the mid-game are equipped with the slot type decorative pattern of regular shape, and the slot type of an end face Decorative pattern and the slot type decorative pattern of other end form mirror symmetry.

Preferably, slot type decorative pattern, and the slot type decorative pattern of outer circumference surface also are provided in the outer circumference surface of the mid-game Shape is identical as the shape of slot type decorative pattern of both ends of the surface and the axial profile line and both ends of the surface of the slot type decorative pattern of outer circumference surface Slot type decorative pattern radial profile be respectively formed correspond and mutually join.

As further preferred scheme, the slot of axial direction high bit line and both ends of the surface in the slot type decorative pattern of the outer circumference surface of mid-game The high bit line of radial direction in formula decorative pattern is homogeneously corresponding and mutually joins before the peripheral chamfer of end face；In the slot type decorative pattern of outer circumference surface Axial neutrality line it is corresponding with the radial neutrality line in the slot type decorative pattern of both ends of the surface and mutually handed over before the peripheral chamfer of end face It connects；Axial low-bit line in the slot type decorative pattern of outer circumference surface and the radial low-bit line in the slot type decorative pattern of both ends of the surface be corresponding, And mutually join before the peripheral chamfer of end face.

As further preferred scheme, wear-resistant coating is equipped in the mating surface of the foil-type elastic component matched with mid-game.

As further preferred scheme, the fit clearance of the foil-type elastic component and mid-game is 0.003~0.008mm.

As further preferred scheme, at least one end of the foil-type elastic component is fixed on the inner face of corresponding side panel.

As further preferred scheme, the foil-type elastic component on each side panel is multiple and uniform along the inner face of side panel Distribution.

As further preferred scheme, the foil-type elastic component that is fixed on a side panel and it is fixed on another side panel Foil-type elastic component forms mirror symmetry.

As further preferred scheme, the card slot for fixing foil-type elastic component is equipped in the inner face of side panel.

As a kind of embodiment, the foil-type elastic component is made of wave foil peace foil, the arc convex of the wave foil Top fits with flat foil.

As another embodiment, the foil-type elastic component is made of wave foil peace foil, between the wave arch of the wave foil Transition bottom edge fits with flat foil.

As another embodiment, the foil-type elastic component is made of two flat foils.

Above-mentioned slot type decorative pattern is impeller shape.

Above-mentioned foil-type elastic component is preferably through Surface heat-treatent.

Preferably, the rotor includes rotor base, magnet steel and magnet steel protective case, and the rotor base is set in In inner shaft, the magnet steel is set in the central part of rotor base, and the magnet steel protective case is set on magnet steel.

Preferably, the stator includes iron core and winding, and the iron core is fixed on the motor above rotor On the inner wall of shell, the winding is arranged on iron core.

Preferably, the iron core includes being stacked the stator lasmination formed up and down by several punchings and being fixed on stator The end clamp plate of lamination two sides.

As further preferred scheme, the punching is in circular ring shape, is equipped at intervals with multiple cup-shaped perforation in ring part, described The rim of a cup portion of perforation closes, the bottom opening of cup foot.

Preferably, the winding is three-phase star-like connection, and center line is not brought up, and only draws tri- ends A, B, C.

As further preferred scheme, every phase winding is 2 coils, and each coil is formed by enamel covered wire continuous coiling.

Compared with prior art, the invention has the following beneficial effects:

It is the lubricant using gas as bearing, therefore not only with no dirt because of turbogenerator provided by the present invention Dye, friction loss be low, using many advantages, such as time is long, applied widely, energy conservation and environmental protection, and uses the structure, radiates Effect is good, it is ensured that long-time steady operation；Especially, because the air bearing of the structure is able to achieve surpassing under air bearing state High speed steady running (after tested, reachable 100, the limit speed of 000~450,000rpm), therefore required for equal-wattage, The present invention can make the volume of turbogenerator be substantially reduced realization micromation, have many advantages, such as to occupy little space, is easy to use, right Promoting the development of micromation new and high technology has important value, has conspicuousness progress compared with the existing technology.

Detailed description of the invention

Fig. 1 is a kind of the schematic diagram of the section structure for small micro turbine generator that embodiment 1 provides；

Fig. 2 is the left view stereochemical structure signal of the local segmentation for the hybrid kinetic pressure gas transverse bearing that embodiment 1 provides Figure；

Fig. 3 is the A partial enlarged view in Fig. 2；

Fig. 4 is the right view stereochemical structure signal of the local segmentation for the hybrid kinetic pressure gas transverse bearing that embodiment 1 provides Figure；

Fig. 5 is the B partial enlarged view in Fig. 4；

Fig. 6 is the schematic diagram of the section structure for the hybrid kinetic pressure gas transverse bearing that embodiment 1 provides；

Fig. 7 is the C partial enlarged view in Fig. 6；

Fig. 8 is the D partial enlarged view in Fig. 7；

Fig. 9 is the schematic diagram of the section structure for the hybrid kinetic pressure gas thrust bearing that embodiment 1 provides；

Figure 10 a is the left view of mid-game described in embodiment 1；

Figure 10 b is the right view of mid-game described in embodiment 1；

Figure 11 a is the right view that the left hand plate of foil-type elastic component is fixed with described in embodiment 1；

Figure 11 b is the left view that the right side disk of foil-type elastic component is fixed with described in embodiment 1；

Figure 12 is the cross section structure schematic diagram for the foil-type elastic component that embodiment 1 provides；

Figure 13 is the schematic perspective view for the foil-type elastic component that embodiment 1 provides；

Figure 14 is a kind of the schematic diagram of the section structure for hybrid kinetic pressure gas transverse bearing that embodiment 2 provides；

Figure 15 is the structural schematic diagram of Figure 14 medium wave foil；

Figure 16 is a kind of the schematic diagram of the section structure for hybrid kinetic pressure gas transverse bearing that embodiment 3 provides；

Figure 17 a is a kind of left view schematic perspective view for hybrid kinetic pressure gas thrust bearing that embodiment 4 provides；

Figure 17 b is the right view schematic perspective view for the hybrid kinetic pressure gas thrust bearing that embodiment 4 provides；

Figure 18 is the local segmentation schematic perspective view for the hybrid kinetic pressure gas thrust bearing that embodiment 4 provides；

Figure 19 is the left view schematic perspective view of mid-game described in embodiment 4；

Figure 20 is the E partial enlarged view in Figure 19；

Figure 21 is the right view schematic perspective view of mid-game described in embodiment 4；

Figure 22 is the F partial enlarged view in Figure 21；

Figure 23 is rotor structure schematic diagram provided by embodiment 5；

Figure 24 is core structure schematic diagram provided by embodiment 6；

Figure 25 is the structural schematic diagram of punching described in embodiment 6；

Figure 26 is winding construction schematic diagram provided by embodiment 6；

Figure 27 is the schematic perspective view of electric machine casing provided by embodiment 7；

Figure 28 is the G partial enlarged view in Figure 27；

Figure 29 is a kind of right view schematic perspective view for small micro turbine generator that embodiment 7 provides.

Figure label is schematically as follows:

1, turbine；11, turbine；12, turbine cylinder；13, turbine fluid director of machine；14, turbine fluid director of machine shell；2, Radiator fan；21, blower-casting；22, air inlet；3, motor；31, rotor；311, rotor base；312, magnet steel；313, magnet steel Protective case；32, stator；321, iron core；3211, punching；32111, cup-shaped is perforated；32111a, rim of a cup portion；32111b, cup foot； 3212, stator lasmination；3213, end clamp plate；322, winding；33, inner shaft；34, outer shaft；35, electric machine casing；351, open slot； 352, venthole；4, hybrid kinetic pressure gas transverse bearing；4a, left transverse bearing；4b, right transverse bearing；41, bearing outside； 411, card slot；42, bearing inner sleeve；43, slot type decorative pattern；431, the slot type decorative pattern of outer circumference surface；4311, axial high bit line；4312, Axial neutrality line；4313, axial low-bit line；432, the slot type decorative pattern of left side；4321, radial high bit line；4322, position in radial direction Line；4323, radial low-bit line；433, the slot type decorative pattern of right side；4331, radial high bit line；4332, radial neutrality line；4333, Radial low-bit line；44, stop ring；45, foil-type elastic component；451, wave foil；4511, arc convex；4512, transition bottom edge between wave arch； 452, flat foil；453, wear-resistant coating；5, hybrid kinetic pressure gas thrust bearing；51, side panel；511, left hand plate；512, right side disk； 513, card slot；52, mid-game；521, the slot type decorative pattern of left side；5211, radial high bit line；5212, radial neutrality line；5213, diameter To low-bit line；522, the slot type decorative pattern of right side；5221, radial high bit line；5222, radial neutrality line；5223, radial low level Line；523, the slot type decorative pattern of outer circumference surface；5231, axial high bit line；5232, axial neutrality line；5233, axial low-bit line；53, Foil-type elastic component；53a, the foil-type elastic component being fixed in left hand plate；53b, the foil-type elastic component being fixed on the disk of right side；531, Wave foil；5311, arc convex；5312, transition bottom edge between wave arch；532, flat foil；6a, left radial axle bearing sleeve；6b, right transverse bearing Set；7a, left bearing room end cap；7a1, gas vent；7b, right bearing room end cap.

Specific embodiment

Technical solution of the present invention is described in detail with reference to the accompanying drawings and embodiments.

Embodiment 1

A kind of small micro turbine generator provided in this embodiment as shown in Figure 1:, including turbine 1, radiator fan 2, electricity 3,2 transverse bearings 4 of machine and 1 thrust bearing 5, the turbine 1 include turbine 11, turbine cylinder 12, turbine water conservancy diversion Device 13 and turbine fluid director of machine shell 14, the radiator fan 2 include blower-casting 21, and the motor 3 includes rotor 31, stator 32, inner shaft 33, outer shaft 34 and electric machine casing 35；The transverse bearing 4 is hybrid kinetic pressure gas transverse bearing, including outside bearing Set 41, bearing inner sleeve 42 and the foil-type elastic component 45 being arranged between bearing outside 41 and inner sleeve 42；The thrust bearing 5 is mixed Box-like kinetic pressure gas thrust bearing, including two side panels 51 and the mid-game 52 being folded between two side panels, in each side panel Foil-type elastic component 53 is equipped between 51 and mid-game 52；The rotor 31 is set in the middle part of inner shaft 33, and 2 transverse bearings 4 divide It is not set on the outer shaft 34 at the left and right end of rotor 31, the thrust bearing 5 is set on the outer shaft 34 of right end and is located at The outer end side of right end transverse bearing 4b, the turbine 1 and radiator fan 2 are separately positioned on the both ends of inner shaft (in the present embodiment The left end of inner shaft 33 is arranged in the turbine 1, and the right end of inner shaft 33 is arranged in the radiator fan 2).

The highway turbine generator further includes left radial axle bearing sleeve 6a, right radial axle bearing sleeve 6b, left bearing room end 7a and right bearing room end cap 7b is covered, turbine cylinder 12 is fixedly connected with turbine fluid director of machine shell 14, turbine fluid director of machine shell Body 14 is fixedly connected with left bearing room end cap 7a, and left bearing room end cap 7a is fixedly connected with left radial axle bearing sleeve 6a, left radial axle Bearing sleeve 6a is fixedly connected with electric machine casing 35, and blower-casting 21 is fixedly connected with right bearing room end cap 7b, right bearing room end cap 7b It is fixedly connected with right radial axle bearing sleeve 6b, right radial axle bearing sleeve 6b is fixedly connected with electric machine casing 35, and the radiator fan 2 is located at In inner shaft 33 between right bearing room end cap 7b and blower-casting 21.

In conjunction with shown in Fig. 2 to Fig. 5: the outer circumference surface of the bearing inner sleeve 42 and left and right end face all have regular shape Slot type decorative pattern 43 (431,432 and 433 in such as figure, the slot type decorative pattern in the present embodiment is impeller shape), and left side Slot type decorative pattern 432 and the slot type decorative pattern 433 of right side form mirror symmetry.Positioned at the slot type flower of the outer circumference surface of bearing inner sleeve 42 The radial profile of the slot type decorative pattern (432 and 433) of the axial profile line and left and right end face of line 431 is respectively formed one-to-one correspondence simultaneously Mutually handover, it may be assumed that the slot type decorative pattern (432 of axial direction high bit line 4311 and left and right end face in the slot type decorative pattern 431 of outer circumference surface It is corresponding and mutually join before the peripheral chamfer of end face with the high bit line of radial direction (4321 and 4331) in 433)；Outer circumference surface Slot type decorative pattern 431 in axial neutrality line 4312 and left and right end face slot type decorative pattern (432 and 433) in radial neutrality line (4322 and 4332) are corresponding and mutually join before the peripheral chamfer of end face；Axial direction in the slot type decorative pattern 431 of outer circumference surface Low-bit line 4313 and the radial low-bit line (4323 and 4333) in the slot type decorative pattern (432 and 433) of left and right end face be corresponding, And mutually join before the peripheral chamfer of end face.

Slot type decorative pattern (431,432 and of regular shape are all had by the outer circumference surface and both ends of the surface that make bearing inner sleeve 42 433), the slot type decorative pattern 432 of left side and the slot type decorative pattern 433 of right side form the slot type decorative pattern of mirror symmetry and outer circumference surface The radial profile of 431 axial profile line and the slot type decorative pattern (432 and 433) of left and right end face is respectively formed one-to-one correspondence and phase Mutually handover, it is ensured that pressurization gas caused by the slot type decorative pattern (432 and 433) of the impeller shape of both ends of the surface from axle center radially It is conveyed in the recess channels constantly formed toward the slot type decorative pattern 431 of outer circumference surface, the axis so that the stronger support of formation runs at high speed Required air film is held, and air film is the lubricant for being used as kinetic pressure gas transverse bearing, therefore is advantageously implemented described hybrid dynamic Press high speed steady running of the gas lubricated journal bearing 4 under air bearing state.

In addition, when only ring 44 is respectively set at the both ends of bearing outside 41, it can be achieved that under the drive of revolution at a high speed axis, Make the both ends of the surface of bearing inner sleeve 42 and only between ring 44 generate self sealing action, the kinetic pressure gas for enabling slot type decorative pattern to continuously generate is complete It is closed well to be stored in the entire fit clearance of bearing, fully ensure that the lubrication of the kinetic pressure gas transverse bearing to run at high speed needs It wants.

In conjunction with shown in Fig. 6 and Fig. 7: the foil-type elastic component 45 is arranged between bearing outside 41 and inner sleeve 42, is to adopt It is formed with the peaceful foil 452 of wave foil 451, the top of the arc convex 4511 of the wave foil 451 fits with flat foil 452, the wave Transition bottom edge 4512 and the inner peripheral wall of bearing outside 41 fit between the wave arch of foil 451.In the inner peripheral wall of bearing outside 41 Equipped with the card slot 411 for fixing 45 both ends of foil-type elastic component, the card slot 411 is corresponding with the quantity of foil-type elastic component 45, And the inner peripheral wall along bearing outside 41 is uniformly distributed.

It is as shown in Figure 8: in mating surface (that is: the structure of the foil-type elastic component 45 matched with the outer circumference surface of bearing inner sleeve 42 At the inner surface of the flat foil 452 of foil-type elastic component 45) it is equipped with wear-resistant coating 453, to further decrease the bearing to run at high speed Abrasion of the inner sleeve 42 to foil-type elastic component 45, extends the service life of bearing.

The fit clearance of the foil-type elastic component 45 and bearing inner sleeve 42 is preferably 0.003~0.008mm, with further Ensure the reliability and stability that bearing runs at high speed.

It is as shown in Figure 9: a kind of hybrid kinetic pressure gas thrust bearing 5 provided in this embodiment, comprising: two side panels 51, It is folded with mid-game 52 between two side panels 51, foil-type elastic component 53 is equipped between each side panel 51 and mid-game 52；In described The left side of disk 52 is equipped with the slot type decorative pattern 521 of regular shape, and right side is equipped with the slot type decorative pattern 522 of regular shape.

It is visible in conjunction with Figure 10 a and Figure 10 b: the slot type decorative pattern 521 of the left side of the mid-game 52 and the slot type flower of right side Mirror symmetry is formed between line 522, the slot type decorative pattern 522 of the radial profile and right side of the slot type decorative pattern 521 of left side Radial profile, which is formed, to be corresponded.

The shape of slot type decorative pattern 521 and 522 is identical, is impeller shape in the present embodiment.

Visible further combined with Figure 11 a and Figure 11 b: the foil-type elastic component 53 is fixed on the inner face of corresponding side panel 51 (such as be fixed with shown in Figure 11 a foil-type elastic component 53a left hand plate 511 and Figure 11 b shown in be fixed with foil-type elastic component The right side disk 512 of 53b), and the foil-type elastic component 53a being fixed in left hand plate 511 and the foil-type bullet being fixed on the disk 512 of right side Property part 53b formed mirror symmetry.Foil-type elastic component on each side panel can be multiple (being shown in the figure 4), and along side The inner face of disk is uniformly distributed.

By the way that foil-type elastic component 53 is arranged between side panel 51 and mid-game 52, rule is set in the left and right end face of mid-game 52 The slot type decorative pattern (521 and 522) of shape, and the slot type decorative pattern 521 of left side and the slot type decorative pattern 522 of right side is made to form mirror image Symmetrically, to obtain the not only rigidity characteristic of the high limit revolving speed with slot type kinetic pressure gas thrust bearing but also there is paillon formula The hybrid kinetic pressure gas thrust bearing of the flexible characteristic of the high impact-resistance and load-carrying ability of kinetic pressure gas thrust bearing；Cause Wedge shape space is formd between foil-type elastic component 53 and mid-game 52, when mid-game 52 rotates, viscous effect of the gas because of its own It is driven and is compressed in wedge shape space, so as to been significantly enhanced axial hydrodynamic power, relative to existing simple foil Chip kinetic pressure gas thrust bearing can have the limit speed being multiplied under same load；Simultaneously as increasing foil-type Elastic component 53 can also make load-carrying ability, impact resistance and the ability of inhibition axis whirling motion of bearing significant under its elastic reaction It improves, relative to existing simple slot type kinetic pressure gas thrust bearing, can have the shock resistance being multiplied under same rotational speed Ability and load-carrying ability.

To further decrease abrasion of the mid-game 52 to run at high speed to foil-type elastic component 53, to extend the use longevity of bearing Wear-resistant coating (not shown) is arranged in life preferably in the mating surface of the foil-type elastic component 53 matched with mid-game 52.

As shown in Figure 12 and Figure 13: foil-type elastic component 45/53 described in the present embodiment is by the peaceful foil of wave foil 451/531 452/532 composition, the top of the arc convex 4511/5311 of the wave foil 451/531 fits with flat foil 452/532.

Embodiment 2

As shown in figure 14, foil-type elastic component 45 described in the present embodiment is made of the peaceful foil 452 of wave foil 451, the wave foil The top of 451 arc convex 4511 and the inner peripheral wall of bearing outside 41 fit, transition bottom between the wave arch of the wave foil 451 Side 4512 fits with flat foil 452.

Figure 15 show the structural schematic diagram of the wave foil 451.

Embodiment 3

As shown in figure 16, foil-type elastic component 45 described in the present embodiment is made of two flat foils 452.

Embodiment 4

As it can be seen that a kind of hybrid kinetic pressure gas thrust bearing provided in this embodiment in conjunction with shown in Figure 17 a, 17b, 18 to 22 Difference with embodiment 1 is only that:

Slot type decorative pattern 523, and the shape of the slot type decorative pattern 523 of outer circumference surface also are provided in the outer circumference surface of the mid-game 52 With the shape of slot type decorative pattern (521 and 522) identical (being impeller shape in the present embodiment) and excircle of left and right end face The axial profile line of the slot type decorative pattern 523 in face and the radial profile of the slot type decorative pattern (521 and 522) of left and right end face are respectively formed It corresponds and mutually joins；That is:

The high bit line 5231 of axial direction in the slot type decorative pattern 523 of outer circumference surface and the radial direction in the slot type decorative pattern 521 of left side High bit line 5211 is corresponding and mutually joins before the peripheral chamfer of end face；In axial direction in the slot type decorative pattern 523 of outer circumference surface Bit line 5232 it is corresponding with the radial neutrality line 5212 in the slot type decorative pattern 521 of left side and before the peripheral chamfer of end face phase Mutually handover；Axial low-bit line 5233 in the slot type decorative pattern 523 of outer circumference surface is low with the radial direction in the slot type decorative pattern 521 of left side Bit line 5213 is corresponding and mutually joins (as shown in figure 20) before the peripheral chamfer of end face；

The high bit line 5231 of axial direction in the slot type decorative pattern 523 of outer circumference surface and the radial direction in the slot type decorative pattern 522 of right side High bit line 5221 is corresponding and mutually joins before the peripheral chamfer of end face；In axial direction in the slot type decorative pattern 523 of outer circumference surface Bit line 5232 it is corresponding with the radial neutrality line 5222 in the slot type decorative pattern 522 of right side and before the peripheral chamfer of end face phase Mutually handover；Axial low-bit line 5233 in the slot type decorative pattern 523 of outer circumference surface is low with the radial direction in the slot type decorative pattern 522 of right side Bit line 5223 is corresponding and mutually joins (as shown in figure 22) before the peripheral chamfer of end face.

When the outer circumference surface in the mid-game 52 also is provided with slot type decorative pattern, and make the shape of the slot type decorative pattern 523 of outer circumference surface Shape is identical as the shape of slot type decorative pattern (521 and 522) of left and right end face and the axial wheel of the slot type decorative pattern 523 of outer circumference surface It, can when the radial profile of profile and the slot type decorative pattern (521 and 522) of left and right end face is respectively formed one-to-one correspondence and mutually joins Make pressurization gas caused by the slot type decorative pattern (521 and 522) of inner disc both ends of the surface from axle center radially constantly toward outer circumference surface The recess channels that are formed of slot type decorative pattern 523 in convey run at high speed air film needed for bearing so that forming stronger support, and gas Film is the lubricant for being used as kinetic pressure gas thrust bearing, thus can be further assured that the hybrid kinetic pressure gas thrust bearing High speed steady running under air bearing state is further ensured that realize that the high limit revolving speed of motor provides.

The card slot 513 (as shown in figure 18) for fixing foil-type elastic component 53 is equipped on the inner face of side panel 51.

The fit clearance of the foil-type elastic component 53 and mid-game 52 is preferably 0.003~0.008mm, to further ensure that The reliability and stability that bearing runs at high speed.

In order to preferably meet the performance requirement to run at high speed, the foil-type elastic component 53 preferably through surface heat at Reason.

It is further to note that: during the composed structure of foil-type elastic component 53 of the present invention is not limited to the above embodiments It is described, it can also be formed using wave foil peace foil, but transition bottom edge fits with flat foil between the wave arch of the wave foil, alternatively, directly It connects using two flat foil compositions, or using other existing structures.

Embodiment 5

In conjunction with shown in Fig. 1 and Figure 23: the rotor 31 includes rotor base 311, magnet steel 312 and magnet steel protective case 313, institute It states rotor base 311 to be set in inner shaft 33, the magnet steel 312 is set in the central part of rotor base 311, the magnet steel protection Set 313 is set on magnet steel 312, more preferably to meet ultrahigh speed rotation.

Embodiment 6

In conjunction with shown in Fig. 1 and Figure 24: the stator 32 includes iron core 321 and winding 322, and the iron core 321 is fixed in place On the inner wall of electric machine casing 35 above rotor 31, the winding 322 is arranged on iron core 321；The iron core 321 include by The stacked stator lasmination 3212 formed of several about 3211 punchings and the end clamp plate 3213 for being fixed on 3212 two sides of stator lasmination.

As shown in figure 25: the punching 3211 is in circular ring shape, is equipped at intervals with multiple cup-shaped perforation 32111, institute in ring part State the rim of a cup portion 32111a closing of perforation 32111, the bottom opening of cup foot 32111b.

As shown in figure 26: the winding 322 uses three-phase star-like connection, and center line is not brought up, and only draws A, B, C tri- ends Head；Every phase winding is 2 coils, and each coil is formed by enamel covered wire continuous coiling.

Embodiment 7

In conjunction with shown in Figure 27 and Figure 28: several open slots 351 are offered in the inner wall side of electric machine casing 35, in motor casing The end face of body offers several ventholes 352, and the open slot 351 is connected with venthole 352, in favor of gas importing and Export, on the one hand realizes rapid cooling exhaust, and another side is realized to carrying out air supply in bearing chamber.

In addition, several gas vent 6a1 are offered in the side of left bearing room end cap 6a, on the outer end face of blower-casting 21 Several air inlets 22 (as shown in figure 29) are offered, to further realize rapid cooling.

After tested, bearing provided by the invention can reach 100 under air bearing state, and the limit of 000~450,000rpm turns Speed, therefore for equal-wattage requirement, the present invention can make the volume of turbogenerator be substantially reduced realization micromation, micro- to promoting The development of type new and high technology has important value.

It is last it is necessarily pointed out that: the above content is served only for doing technical solution of the present invention further detailed Illustrate, should not be understood as limiting the scope of the invention, those skilled in the art's above content according to the present invention is made Some nonessential modifications and adaptations out all belong to the scope of protection of the present invention.

Claims

1. a kind of small micro turbine generator, including turbine, radiator fan, motor, 2 transverse bearings and 1 thrust bearing, The turbine includes that turbine, turbine cylinder, turbine fluid director of machine and turbine fluid director of machine shell, the radiator fan include Blower-casting, the motor include rotor, stator, inner shaft, outer shaft and electric machine casing；The thrust bearing is hybrid action pneumatic Body thrust bearing is all provided between each side panel and mid-game including two side panels and the mid-game being folded between two side panels There is foil-type elastic component；2 transverse bearings are respectively sleeved on the outer shaft at the left and right end of rotor；The thrust bearing is located at the right side Hold the outer end side of transverse bearing；The turbine and radiator fan are separately positioned on the both ends of inner shaft；It is characterized by: the diameter Be hybrid kinetic pressure gas transverse bearing to bearing, including bearing outside, bearing inner sleeve and setting bearing outside and inner sleeve it Between foil-type elastic component；The rotor is set in the middle part of inner shaft, and the thrust bearing is set on the outer shaft of right end；In motor The inner wall side of shell offers several open slots, offers several ventholes in the end face of electric machine casing, the open slot with Venthole is connected.

2. small micro turbine generator according to claim 1, it is characterised in that: a left side for inner shaft is arranged in the turbine The right end of inner shaft is arranged in end, the radiator fan.

3. small micro turbine generator according to claim 2, it is characterised in that: the small micro turbine generator is also Including left radial axle bearing sleeve and left bearing room end cap, turbine cylinder is fixedly connected with turbine fluid director of machine shell, and turbine is led Stream device shell is fixedly connected with left bearing room end cap, and left bearing room end cap is fixedly connected with left radial axle bearing sleeve, left transverse bearing Set is fixedly connected with electric machine casing.

4. small micro turbine generator according to claim 3, it is characterised in that: the small micro turbine generator is also Including right radial axle bearing sleeve and right bearing room end cap, blower-casting is fixedly connected with right bearing room end cap, right bearing room end cap with Right radial axle bearing sleeve is fixedly connected, and right radial axle bearing sleeve is fixedly connected with electric machine casing, and the radiator fan is provided at right axle It holds in the inner shaft between room end cap and blower-casting.

5. small micro turbine generator according to claim 4, it is characterised in that: in left bearing room, the side of end cap is opened up There are several gas vents, several air inlets are offered on the outer end face of blower-casting.

6. small micro turbine generator according to claim 1, it is characterised in that: the outer circumference surface of the bearing inner sleeve and Both ends of the surface all have the slot type decorative pattern of regular shape.

7. small micro turbine generator according to claim 6, it is characterised in that: the slot of an end face of the bearing inner sleeve Formula decorative pattern and the slot type decorative pattern of other end form the axial profile line and two of the slot type decorative pattern of mirror symmetry and outer circumference surface The radial profile of the slot type decorative pattern of end face, which is respectively formed, to be corresponded and mutually joins.

8. small micro turbine generator according to claim 7, it is characterised in that: the outer circumference surface of the bearing inner sleeve The high bit line of axial direction in slot type decorative pattern is homogeneously corresponding with the high bit line of radial direction in the slot type decorative pattern of both ends of the surface and falls in end face circumference Mutually join before angle；Axial neutrality line in the slot type decorative pattern of outer circumference surface and the radial neutrality line in the slot type decorative pattern of both ends of the surface It is corresponding and mutually join before the peripheral chamfer of end face；Axial low-bit line and both ends of the surface in the slot type decorative pattern of outer circumference surface Slot type decorative pattern in radial low-bit line it is corresponding and mutually join before the peripheral chamfer of end face.

9. small micro turbine generator according to claim 1, it is characterised in that: the both ends of the surface of the mid-game are equipped with rule The then slot type decorative pattern of shape, and the slot type decorative pattern of an end face and the slot type decorative pattern of other end form mirror symmetry.

10. small micro turbine generator according to claim 9, it is characterised in that: in the outer circumference surface of the mid-game Equipped with slot type decorative pattern, and the shape of the slot type decorative pattern of outer circumference surface is identical as the shape of slot type decorative pattern of both ends of the surface and outer circle The radial profile of the slot type decorative pattern of the axial profile line and both ends of the surface of the slot type decorative pattern of circumferential surface be respectively formed one-to-one correspondence and it is mutual Handover.

11. small micro turbine generator according to claim 10, it is characterised in that: the slot type flower of the outer circumference surface of mid-game The high bit line of axial direction in line it is homogeneously corresponding with the high bit line of radial direction in the slot type decorative pattern of both ends of the surface and before the peripheral chamfer of end face phase Mutually handover；Axial neutrality line in the slot type decorative pattern of outer circumference surface and the radial neutrality line in the slot type decorative pattern of both ends of the surface are opposite It answers and mutually joins before the peripheral chamfer of end face；The slot type of axial low-bit line and both ends of the surface in the slot type decorative pattern of outer circumference surface Radial low-bit line in decorative pattern is corresponding and mutually joins before the peripheral chamfer of end face.

12. small micro turbine generator according to claim 1, it is characterised in that: the foil-type being fixed on a side panel Elastic component forms mirror symmetry with the foil-type elastic component being fixed on another side panel.

13. according to claim 1 or small micro turbine generator described in 12, it is characterised in that: the foil-type elastic component by Wave foil peace foil composition, arc convex top and the flat foil of the wave foil fit.

14. according to claim 1 or small micro turbine generator described in 12, it is characterised in that: the foil-type elastic component by Wave foil peace foil composition, transition bottom edge fits with flat foil between the wave of the wave foil encircles.

15. according to claim 1 or small micro turbine generator described in 12, it is characterised in that: the foil-type elastic component by Two flat foil compositions.

16. small micro turbine generator according to claim 1, it is characterised in that: the rotor includes rotor base, magnetic Steel and magnet steel protective case, the rotor base are set in inner shaft, and the magnet steel is set in the central part of rotor base, the magnetic Steel protective case is set on magnet steel.

17. small micro turbine generator according to claim 1, it is characterised in that: the stator includes iron core and winding, The iron core is fixed on the inner wall of the electric machine casing above rotor, and the winding is arranged on iron core.

18. small micro turbine generator according to claim 17, it is characterised in that: the iron core includes by several punchings The stacked stator lasmination formed and the end clamp plate for being fixed on stator lasmination two sides up and down.

19. small micro turbine generator according to claim 18, it is characterised in that: the punching is in circular ring shape, in ring Shape portion is equipped at intervals with multiple cup-shaped perforation, the rim of a cup portion closing of the perforation, the bottom opening of cup foot.

20. small micro turbine generator according to claim 17, it is characterised in that: the winding is the star-like company of three-phase It connects, center line is not brought up, and only draws tri- ends A, B, C.

21. small micro turbine generator according to claim 20, it is characterised in that: every phase winding is 2 coils, each Coil is formed by enamel covered wire continuous coiling.