CN105889324A

CN105889324A - Miniature turbine generator

Info

Publication number: CN105889324A
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: 2016-08-24
Anticipated expiration: 2036-05-18
Also published as: WO2016184417A1; CN105888819B; TWI676735B; CN205864142U; WO2016184405A1; WO2016184411A1; TW201704629A; CN105889325B; CN205858478U; CN205858960U; TW201706496A; WO2016184415A1; CN105888819A; CN105889324B; CN105889326A; WO2016184407A1; CN106026491A; CN205858731U; CN106026491B; CN105888847B

Abstract

The invention discloses a miniature turbine generator which comprises a turbine, a cooling fan, a motor, two radial bearings and a thrust bearing. The radial bearings are hybrid radial hydrodynamic gas-lubricated bearings, and the thrust bearing is a hybrid thrust hydrodynamic gas-lubricated bearing. The middle part of an inner shaft is sleeved with a rotor, the two radial bearings are arranged on the parts, located at the left and right ends of the rotor, of an outer shaft in a sleeving mode correspondingly, and the thrust bearing is arranged on the part, located at the right end, of the outer shaft in a sleeving mode and located at the outer end of the radial bearing at the right end. The turbine and the cooling fan are arranged at the two ends of the inner shaft correspondingly. The miniature turbine generator can stably operate at an ultrahigh speed in a gas-floating state, and for meeting the same power requirement, the size of the turbine generator can be obviously reduced to achieve miniaturization.

Description

A kind of little micro turbine generator

Technical field

The present invention relates to a kind of little micro turbine generator, belongs to high-accuracy field of mechanical technique.

Background technology

In recent years, along with distributed power supply and the development of many power technologies, power system the most slowly replaces in conventional aircraft The mechanical system such as hydraulic pressure, air pressure so that secondary side power system is allocated the most in form of electricity, many electricity, all-electric aircraft Have become as contemporary new developing direction.The many electricity of a new generation will be become based on the power-supply system of little micro turbine generator to fly The important research direction of row device power-supply system, its principle is to utilize the high velocity air band during combustion gas wake flame and aircraft flight Dynamic turbine rotates and generates electricity.

Owing to traditional oils system bearing also exists limit speed, when rotating shaft rotating speed oversteps the extreme limit rotating speed, bearing can lose efficacy, the most The use requirement of little micro turbine generator can not be met.And air-bearing is little with its frictional dissipation, high-temperature stability good, can High by property, vibrate little, need not lubricating oil, not by series of advantages such as rotating shaft size limitation, be increasingly becoming industrial quarters The focus paid close attention to academia, such as: Chinese patent application CN201310703932.8 discloses a kind of exhaust gas turbine generating Machine, uses 2 radial air foil bearings and 1 air foil thrust bearing, to overcome traditional bearing work under high-speed and high-temperature Make the defect easily lost efficacy, have that frictional dissipation is little, can work in high temperature environments, exhaust energy organic efficiency advantages of higher, But owing to foil bearing is generally adopted by tinsel, not only there is also on material manufacturing technology and technology A difficult problem, and the damping value of bearing can not large increase, the rigidity causing bearing is inadequate, and the critical speed of bearing is relatively low, When running up, easy unstability is the most stuck, and the stability run up is the best, and rotating speed improves limited so that commercial Application is subject to To limitation.

Summary of the invention

The problems referred to above existed for prior art, it is an object of the invention to provide a kind of little miniature whirlpool stablizing high-speed cruising Turbine generator.

For achieving the above object, the technical solution used in the present invention is as follows:

A kind of little micro turbine generator, including turbine, radiator fan, motor, 2 journal bearings and 1 thrust bearing, Described turbine includes turbine, turbine cylinder, turbine air deflector and turbine air deflector housing, described radiator fan bag Including blower-casting, described motor includes rotor, stator, axle, outer shaft and electric machine casing；It is characterized in that: described radial direction Bearing is hybrid kinetic pressure gas journal bearing, including bearing outside, bearing inner sleeve and be arranged between bearing outside and inner sleeve Foil-type elastic component；Described thrust bearing is hybrid kinetic pressure gas thrust bearing, including two side panels and be folded in two Mid-game between side panel, is equipped with foil-type elastic component between each side panel and mid-game；Described rotor is set in the middle part of axle, 2 journal bearings are respectively sleeved on the outer shaft being positioned at the left and right end of rotor, described thrust bearing is set on the outer shaft of right-hand member, And it being positioned at the outer side of right-hand member journal bearing, described turbine and radiator fan are separately positioned on the two ends of axle.

As a kind of embodiment, described turbine is arranged on the left end of axle, and described radiator fan is arranged on the right-hand member of axle.

As further embodiment, described little micro turbine generator also includes left radial axle bearing sleeve and left bearing room end cap, Turbine cylinder is fixing with turbine air deflector housing to be connected, and turbine air deflector housing is fixing with left bearing room end cap to be connected, Left bearing room end cap is fixing with left radial axle bearing sleeve to be connected, and left radial axle bearing sleeve is fixing with electric machine casing to be connected.

As further embodiment, described little micro turbine generator also includes right radial axle bearing sleeve and right bearing room end cap, Blower-casting is fixing with right bearing room end cap to be connected, and right bearing room end cap is fixing with right radial axle bearing sleeve to be connected, right journal bearing Overlapping be connected fixing with electric machine casing, described radiator fan is provided on the axle between right bearing room end cap and blower-casting.

Preferably, offering some open slots in the inwall week side of electric machine casing, the end face at electric machine casing offers Some passages, described open slot is connected with passage, is beneficial to importing and the derivation of gas, on the one hand realizes quickly dissipating Thermal exhaust, another side realizes bearing indoor are carried out air supply.

Preferably, offer some steam vents in all sides of left bearing room end cap, the outer face of blower-casting is opened It is provided with some air inlets.

Preferably, the outer circumference surface of described bearing inner sleeve and both ends of the surface are respectively provided with the slot type decorative pattern of regular shape.

As further preferred scheme, the slot type decorative pattern of the end face of described bearing inner sleeve is formed with the slot type decorative pattern of other end Specular, and the equal shape of radial profile of the slot type decorative pattern of the axial profile line of the slot type decorative pattern of outer circumference surface and both ends of the surface Become one_to_one corresponding and mutually join.

As further preferred scheme, the axial high bit line in the slot type decorative pattern of the outer circumference surface of described bearing inner sleeve and both ends of the surface Slot type decorative pattern in the high bit line of radial direction homogeneously corresponding and mutually join before end face peripheral chamfer；The slot type flower of outer circumference surface Axial neutrality line in stricture of vagina the most corresponding with the radial direction neutrality line in the slot type decorative pattern of both ends of the surface and before end face peripheral chamfer phase Handing-over mutually；Axial low-bit line in the slot type decorative pattern of outer circumference surface is the most relative with the radial direction low-bit line in the slot type decorative pattern of both ends of the surface Should and mutually join before end face peripheral chamfer.

As further preferred scheme, the cooperation face of the foil-type elastic component matched with the outer circumference surface of bearing inner sleeve is provided with Wear-resistant coating.

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

As further preferred scheme, the two ends of described foil-type elastic component are each attached on the inner peripheral wall of bearing outside.

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

As further preferred scheme, the inner peripheral wall at bearing outside is provided with the draw-in groove for fixing foil-type elastic component.

As further preferred scheme, it is provided with stop ring at the two ends of bearing outside.

Preferably, the both ends of the surface of described mid-game are equipped with the slot type decorative pattern of regular shape, and the slot type decorative pattern of end face Specular is formed with the slot type decorative pattern of other end.

Preferably, the outer circumference surface in described mid-game also is provided with slot type decorative pattern, and the shape of the slot type decorative pattern of outer circumference surface Shape is identical with the shape of the slot type decorative pattern of both ends of the surface, and the groove of the axial profile line of the slot type decorative pattern of outer circumference surface and both ends of the surface The radial profile of formula decorative pattern is respectively formed one_to_one corresponding and mutually joins.

Slot type flower as further preferred scheme, the axial high bit line in the slot type decorative pattern of the outer circumference surface of mid-game and both ends of the surface The high bit line of radial direction in stricture of vagina is homogeneously corresponding and mutually joins before end face peripheral chamfer；Axle in the slot type decorative pattern of outer circumference surface The most corresponding with the radial direction neutrality line in the slot type decorative pattern of both ends of the surface to neutrality line and mutually join before end face peripheral chamfer； Axial low-bit line in the slot type decorative pattern of outer circumference surface the most corresponding with the radial direction low-bit line in the slot type decorative pattern of both ends of the surface and Mutually join before end face peripheral chamfer.

As further preferred scheme, the cooperation face of the foil-type elastic component matched with mid-game is provided with wear-resistant coating.

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

As further preferred scheme, at least one end of described 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 is uniformly distributed along the inner face of side panel.

As further preferred scheme, the foil-type elastic component being fixed on a side panel and the foil-type being fixed on another side panel Elastic component forms specular.

As further preferred scheme, the inner face at side panel is provided with the draw-in groove for fixing foil-type elastic component.

As a kind of embodiment, described foil-type elastic component is made up of ripple paper tinsel peace paper tinsel, the arc convex top of described ripple paper tinsel Fit with flat paper tinsel.

As another embodiment, described foil-type elastic component is made up of ripple paper tinsel peace paper tinsel, transition between the ripple arch of described ripple paper tinsel Base fits with flat paper tinsel.

As another embodiment, described foil-type elastic component is made up of two flat paper tinsels.

Above-mentioned slot type decorative pattern is impeller shape.

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

Preferably, described rotor includes rotor base, magnet steel and magnet steel protection set, and described rotor base is set in On axle, described magnetic steel sleeve is located at the central part of rotor base, and described magnet steel protection set is set on magnet steel.

Preferably, described stator includes that iron core and winding, described iron core are held within the electric machine casing above rotor Inwall on, described winding is arranged on iron core.

Preferably, described iron core includes by some punchings stacked stator lasmination formed up and down and is fixed on stator lasmination The end clamp plate of both sides.

As further preferred scheme, described punching is annular, ring part be interval with multiple cup-shaped perforation, described in wear The rim of a cup portion in hole closes, the bottom opening of cup foot.

Preferably, described winding is the star-like connection of three-phase, and centrage is not brought up, and only draws tri-terminations of 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, there is advantages that

Because of turbogenerator provided by the present invention, be the lubricant using gas as bearing, the most not only have pollution-free, Friction loss is low, use the plurality of advantages such as time length, applied widely, energy-conserving and environment-protective, and uses described structure, heat radiation Effective, it is ensured that long-time steady operation；Especially, can realize under air supporting state because of the air bearing of described structure Ultrahigh speed steady running (after tested, up to 100,000～450, the limit speed of 000rpm), therefore wants for equal-wattage Asking, the present invention can make the volume of turbogenerator be substantially reduced realization miniaturization, have take up room little, easy to use etc. excellent Point, the development to promoting miniaturization new and high technology has important value, has significance progress relative to prior art.

Accompanying drawing explanation

Fig. 1 is the cross-sectional view of a kind of little micro turbine generator that embodiment 1 provides；

Fig. 2 is the left view perspective view of the local segmentation of the hybrid kinetic pressure gas journal bearing that embodiment 1 provides；

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

Fig. 4 is that the right side of the local segmentation of the hybrid kinetic pressure gas journal bearing that embodiment 1 provides regards perspective view；

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

Fig. 6 is the cross-sectional view of the hybrid kinetic pressure gas journal bearing that embodiment 1 provides；

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

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

Fig. 9 is the cross-sectional view of 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 of the left hand plate being fixed with foil-type elastic component described in embodiment 1；

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

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

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

Figure 14 is the cross-sectional view of a kind of hybrid kinetic pressure gas journal bearing that embodiment 2 provides；

Figure 15 is the structural representation of Figure 14 medium wave paper tinsel；

Figure 16 is the cross-sectional view of a kind of hybrid kinetic pressure gas journal bearing that embodiment 3 provides；

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

Figure 17 b is that the right side of the hybrid kinetic pressure gas thrust bearing that embodiment 4 provides regards perspective view；

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

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

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

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

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

Figure 23 is the rotor structure schematic diagram that embodiment 5 is provided；

Figure 24 is the core structure schematic diagram that embodiment 6 is provided；

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

Figure 26 is the winding construction schematic diagram that embodiment 6 is provided；

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

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

Figure 29 is that the right side of a kind of little micro turbine generator that embodiment 7 provides regards perspective view.

In figure, label is schematically as follows:

1, turbine；11, turbine；12, turbine cylinder；13, turbine air deflector；14, turbine air deflector housing； 2, radiator fan；21, blower-casting；22, air inlet；3, motor；31, rotor；311, rotor base；312、 Magnet steel；313, magnet steel protection set；32, stator；321, iron core；3211, punching；32111, cup-shaped perforation；32111a、 Rim of a cup portion；32111b, cup foot；3212, stator lasmination；3213, end clamp plate；322, winding；33, axle；34, outer Axle；35, electric machine casing；351, open slot；352, passage；4, hybrid kinetic pressure gas journal bearing；4a, Zuo Jing To bearing；4b, right journal bearing；41, bearing outside；411, draw-in groove；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, the highest bit line；4322, radially neutrality line；4323, radially low-bit line；433, right The slot type decorative pattern of end face；4331, the highest bit line；4332, radially neutrality line；4333, radially low-bit line；44, stop ring； 45, foil-type elastic component；451, ripple paper tinsel；4511, arc convex；4512, transition base between ripple arch；452, flat paper tinsel；453、 Wear-resistant coating；5, hybrid kinetic pressure gas thrust bearing；51, side panel；511, left hand plate；512, right side dish；513、 Draw-in groove；52, mid-game；521, the slot type decorative pattern of left side；5211, the highest bit line；5212, radially neutrality line；5213、 Radially low-bit line；522, the slot type decorative pattern of right side；5221, the highest bit line；5222, radially neutrality line；5223, footpath To low-bit line；523, the slot type decorative pattern of outer circumference surface；5231, axial high bit line；5232, axial neutrality line；5233, axle To low-bit line；53, foil-type elastic component；53a, the foil-type elastic component being fixed in left hand plate；53b, be fixed on right side dish on Foil-type elastic component；531, ripple paper tinsel；5311, arc convex；5312, transition base between ripple arch；532, flat paper tinsel；6a、 Left radial axle bearing sleeve；6b, right radial axle bearing sleeve；7a, left bearing room end cap；7a1, steam vent；7b, right bearing room end cap.

Detailed description of the invention

Below in conjunction with the accompanying drawings and technical scheme is described in detail by embodiment.

Embodiment 1

As shown in Figure 1: the little micro turbine generator of one that the present embodiment provides, including turbine 1, radiator fan 2, electricity 3,2 journal bearings 4 of machine and 1 thrust bearing 5, described turbine 1 includes turbine 11, turbine cylinder 12, turbine Fluid director of machine 13 and turbine air deflector housing 14, described radiator fan 2 includes that blower-casting 21, described motor 3 include Rotor 31, stator 32, axle 33, outer shaft 34 and electric machine casing 35；Described journal bearing 4 is hybrid kinetic pressure gas footpath To bearing, including bearing outside 41, bearing inner sleeve 42 and the foil-type elastic component being arranged between bearing outside 41 and inner sleeve 42 45；Described thrust bearing 5 is hybrid kinetic pressure gas thrust bearing, including two side panels 51 and be folded in two side panels it Between mid-game 52, between each side panel 51 and mid-game 52, be equipped with foil-type elastic component 53；Described rotor 31 is set in The middle part of axle 33,2 journal bearings 4 are respectively sleeved on the outer shaft 34 being positioned at the left and right end of rotor 31, described thrust shaft Hold 5 and be set on the outer shaft 34 of right-hand member and be positioned at the outer side of right-hand member journal bearing 4b, described turbine 1 and radiation air (turbine 1 described in the present embodiment is arranged on the left end of axle 33, described radiation air for two ends that fan 2 is separately positioned on axle Fan 2 is arranged on the right-hand member of axle 33).

Described highway turbine electromotor also includes left radial axle bearing sleeve 6a, right radial axle bearing sleeve 6b, left bearing room end cap 7a With right bearing room end cap 7b, turbine cylinder 12 is fixing with turbine air deflector housing 14 to be connected, turbine air deflector housing 14 fixing with left bearing room end cap 7a are connected, and left bearing room end cap 7a and left radial axle bearing sleeve 6a fixes and is connected, left radial axle Bearing sleeve 6a is fixing with electric machine casing 35 to be connected, and blower-casting 21 is fixing with right bearing room end cap 7b to be connected, right bearing room end Lid 7b and right radial axle bearing sleeve 6b is fixing to be connected, and right radial axle bearing sleeve 6b is fixing with electric machine casing 35 to be connected, described heat radiation Fan 2 is provided on the interior axle 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 described bearing inner sleeve 42 and left and right end face are respectively provided with the groove of regular shape Formula decorative pattern 43 (such as 431 in figure, 432 and 433, the slot type decorative pattern in the present embodiment is impeller shape), and left side The slot type decorative pattern 433 of slot type decorative pattern 432 and right side form specular.It is positioned at the groove of the outer circumference surface of bearing inner sleeve 42 The axial profile line of formula decorative pattern 431 is respectively formed one by one with the radial profile of the slot type decorative pattern (432 and 433) of left and right end face Correspondence also mutually joins, it may be assumed that the axial high bit line 4311 in the slot type decorative pattern 431 of outer circumference surface and the slot type of left and right end face The high bit line of radial direction (4321 and 4331) in decorative pattern (432 and 433) is the most corresponding and mutual before end face peripheral chamfer Handing-over；Axial neutrality line 4312 in the slot type decorative pattern 431 of outer circumference surface and the slot type decorative pattern (432 and 433) of left and right end face In radial direction neutrality line (4322 and 4332) the most corresponding and mutually join before end face peripheral chamfer；The groove of outer circumference surface Axial low-bit line 4313 in formula decorative pattern 431 and the radial direction low-bit line in the slot type decorative pattern (432 and 433) of left and right end face (4323 and 4333) are the most corresponding and mutually join before end face peripheral chamfer.

The slot type decorative pattern (431,432 and 433) of regular shape it is respectively provided with by the outer circumference surface and both ends of the surface making bearing inner sleeve 42, The slot type decorative pattern 432 of left side forms the slot type decorative pattern 431 of specular and outer circumference surface with the slot type decorative pattern 433 of right side The radial profile of slot type decorative pattern (432 and 433) of axial profile line and left and right end face be respectively formed one_to_one corresponding mutually Handing-over, it is ensured that produced by the slot type decorative pattern (432 and 433) of the impeller shape of both ends of the surface, pressurization gas is from axle center radially Carrying in the recess channels constantly formed toward the slot type decorative pattern 431 of outer circumference surface, running up axle so that forming higher support Hold required air film, and air film is i.e. as the lubricant of kinetic pressure gas journal bearing, be thus advantageous to realize described hybrid dynamic The pressure gas lubricated journal bearing 4 high speed steady running under air supporting state.

It addition, when being respectively provided with stop ring 44 at the two ends of bearing outside 41, may be implemented under the drive of high speed gyroaxis, Make to be produced from sealing function between the both ends of the surface of bearing inner sleeve 42 and stop ring 44, make the action pneumatic physical ability that slot type decorative pattern continuously generates In the most airtight whole fit clearance being saved in bearing, fully ensure that the lubrication of the kinetic pressure gas journal bearing run up Need.

Shown in Fig. 6 and Fig. 7: described foil-type elastic component 45 is arranged between bearing outside 41 and inner sleeve 42, is to adopt Forming with ripple paper tinsel 451 peace paper tinsel 452, the top of the arc convex 4511 of described ripple paper tinsel 451 fits with flat paper tinsel 452, institute State the inner peripheral wall of transition base 4512 and bearing outside 41 between the ripple arch of ripple paper tinsel 451 to fit.In bearing outside 41 Circumferential wall is provided with the draw-in groove 411 for fixing foil-type elastic component 45 two ends, described draw-in groove 411 and the quantity of foil-type elastic component 45 Corresponding, and all inner peripheral walls along bearing outside 41 are uniformly distributed.

As shown in Figure 8: at cooperation face (that is: the structure of the foil-type elastic component 45 matched with the outer circumference surface of bearing inner sleeve 42 Become the inner surface of the flat paper tinsel 452 of foil-type elastic component 45) it is provided with wear-resistant coating 453, the axle run up with further reduction Hold the inner sleeve 42 abrasion to foil-type elastic component 45, extend the service life of bearing.

Described foil-type elastic component 45 is preferably 0.003～0.008mm with the fit clearance of bearing inner sleeve 42, with the most really Protect the reliability and stability that bearing runs up.

As shown in Figure 9: the hybrid kinetic pressure gas thrust bearing of one 5 that the present embodiment provides, including: two side panels 51, Between two side panels 51, it is folded with mid-game 52, between each side panel 51 and mid-game 52, is provided with foil-type elastic component 53；Institute The left side stating mid-game 52 is provided with the slot type decorative pattern 521 of regular shape, and right side is provided with the slot type decorative pattern 522 of regular shape.

Visible in conjunction with Figure 10 a and Figure 10 b: the slot type decorative pattern 521 of the left side of described mid-game 52 and the slot type decorative pattern of right side The footpath of specular, the radial profile of the slot type decorative pattern 521 of left side and the slot type decorative pattern 522 of right side is formed between 522 One_to_one corresponding is formed to contour line.

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

Visible further combined with Figure 11 a and Figure 11 b: described foil-type elastic component 53 is fixed on (example on the inner face of corresponding side panel 51 It is fixed with foil-type elastic component 53b shown in the left hand plate 511 and Figure 11 b being fixed with foil-type elastic component 53a as shown in fig. 11a Right side dish 512), and the foil-type elastic component 53a being fixed in left hand plate 511 and be fixed on right side dish 512 on foil-type bullet Property part 53b formed specular.Foil-type elastic component on each side panel can be multiple (shown in figure are 4), and edge The inner face of side panel is uniformly distributed.

By arranging foil-type elastic component 53 between side panel 51 and mid-game 52, the left and right end face in mid-game 52 arranges rule shape The slot type decorative pattern (521 and 522) of shape, and make the slot type decorative pattern 521 of left side form mirror with the slot type decorative pattern 522 of right side As symmetrical, thus obtain the rigidity characteristic of the high limit rotating speed not only with slot type kinetic pressure gas thrust bearing, but also there is paillon foil The high impact-resistance of formula kinetic pressure gas thrust bearing and the hybrid kinetic pressure gas thrust bearing of the flexible characteristic of load-carrying ability； Because defining wedge shape space between foil-type elastic component 53 and mid-game 52, when mid-game 52 rotates, gas is because of the viscosity of himself Effect is driven and is compressed in wedge shape space, thus axial hydrodynamic power can be made to been significantly enhanced, relative to existing list Blank foil chip kinetic pressure gas thrust bearing, can have the limit speed being multiplied under same load；Simultaneously as increase Foil-type elastic component 53, under its elastic reaction, also can make the load-carrying ability of bearing, impact resistance and suppression axle whirling motion Ability significantly improves, and relative to existing simple slot type kinetic pressure gas thrust bearing, can have and be multiplied under same rotational speed Impact resistance and load-carrying ability.

For reducing the mid-game 52 the run up abrasion to foil-type elastic component 53 further, to extend the service life of bearing, Preferably wear-resistant coating (not shown) is set on the cooperation face of the foil-type elastic component 53 matched with mid-game 52.

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

Embodiment 2

As shown in figure 14, the foil-type elastic component 45 described in the present embodiment is made up of ripple paper tinsel 451 peace paper tinsel 452, described ripple paper tinsel The top of the arc convex 4511 of 451 fits with the inner peripheral wall of bearing outside 41, transition between the ripple arch of described ripple paper tinsel 451 Base 4512 fits with flat paper tinsel 452.

Figure 15 show the structural representation of described ripple paper tinsel 451.

Embodiment 3

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

Embodiment 4

In conjunction with Figure 17 a, 17b, shown in 18 to 22 visible, the hybrid kinetic pressure gas thrust bearing of one that the present embodiment provides With differing only in of embodiment 1:

Outer circumference surface in described mid-game 52 also is provided with slot type decorative pattern 523, and the shape of the slot type decorative pattern 523 of outer circumference surface with The shape identical (being impeller shape in the present embodiment) of the slot type decorative pattern (521 and 522) of left and right end face, and cylindrical The axial profile line of the slot type decorative pattern 523 of side face is equal with the radial profile of the slot type decorative pattern of left and right end face (521 and 522) Form one_to_one corresponding and mutually join；That is:

Axial high bit line 5231 in the slot type decorative pattern 523 of outer circumference surface is high-order with the radial direction in the slot type decorative pattern 521 of left side Line 5211 is the most corresponding and mutually joins before end face peripheral chamfer；Middle position in the slot type decorative pattern 523 of outer circumference surface Line 5232 the most corresponding with the radial direction neutrality line 5212 in the slot type decorative pattern 521 of left side and before end face peripheral chamfer phase Handing-over mutually；Axial low-bit line 5233 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 Low-bit line 5213 is the most corresponding and mutually joins (as shown in figure 20) before end face peripheral chamfer；

Axial high bit line 5231 in the slot type decorative pattern 523 of outer circumference surface is high-order with the radial direction in the slot type decorative pattern 522 of right side Line 5221 is the most corresponding and mutually joins before end face peripheral chamfer；Middle position in the slot type decorative pattern 523 of outer circumference surface Line 5232 the most corresponding with the radial direction neutrality line 5222 in the slot type decorative pattern 522 of right side and before end face peripheral chamfer phase Handing-over mutually；Axial low-bit line 5233 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 Low-bit line 5223 is the most corresponding and mutually joins (as shown in figure 22) before end face peripheral chamfer.

When the outer circumference surface in described mid-game 52 also is provided with slot type decorative pattern, and make outer circumference surface slot type decorative pattern 523 shape with The shape of the slot type decorative pattern (521 and 522) of left and right end face is identical, and the axial wheel of the slot type decorative pattern 523 of outer circumference surface When the radial profile of the slot type decorative pattern (521 and 522) of profile and left and right end face is respectively formed one_to_one corresponding and mutually joins, Pressurization gas produced by the slot type decorative pattern (521 and 522) of inner disc both ends of the surface can be made the most constantly toward excircle from axle center Carrying in the recess channels that the slot type decorative pattern 523 in face is formed, running up the air film needed for bearing so that forming higher support, And air film is i.e. as the lubricant of kinetic pressure gas thrust bearing, thus can be further assured that described hybrid dynamic pressure air thrust Bearing high speed steady running under air supporting state, is further ensured that for realizing the high limit rotating speed offer of motor.

The inner face of side panel 51 is provided with the draw-in groove 513 (as shown in figure 18) for fixing foil-type elastic component 53.

Described foil-type elastic component 53 is preferably 0.003～0.008mm, to further ensure that axle with the fit clearance of mid-game 52 Hold the reliability and stability run up.

In order to preferably meet the performance requirement run up, described foil-type elastic component 53 is preferably through Surface heat-treatent.

It is further to note that: the composition structure of foil-type elastic component 53 of the present invention is not limited to described in above-described embodiment, Ripple paper tinsel peace paper tinsel can also be used to form, but between the ripple of described ripple paper tinsel arch, transition base fits with flat paper tinsel, or, directly adopt Form with two flat paper tinsels, or use other existing structure.

Embodiment 5

Shown in Fig. 1 and Figure 23: described rotor 31 includes rotor base 311, magnet steel 312 and magnet steel protection set 313, Described rotor base 311 is set on axle 33, and described magnet steel 312 is set in the central part of rotor base 311, described magnetic Steel protection set 313 is set on magnet steel 312, more preferably to meet ultrahigh speed rotation.

Embodiment 6

Shown in Fig. 1 and Figure 24: described stator 32 includes that iron core 321 and winding 322, described iron core 321 are secured in place On the inwall of the electric machine casing 35 above rotor 31, described winding 322 is arranged on iron core 321；Described iron core 321 Including by the stacked stator lasmination 3212 formed of some punchings about 3211 and the end clamp plate being fixed on stator lasmination 3212 both sides 3213。

As shown in figure 25: described punching 3211, in annular, is interval with multiple cup-shaped perforation 32111 at ring part, described The rim of a cup portion 32111a of perforation 32111 closes, the bottom opening of cup foot 32111b.

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

Embodiment 7

Shown in Figure 27 and Figure 28: offer some open slots 351, at motor casing in the inwall week side of electric machine casing 35 The end face of body offers some passages 352, and described open slot 351 is connected with passage 352, is beneficial to the importing of gas And derivation, on the one hand realizing quick heat radiating aerofluxus, another side realizes bearing indoor are carried out air supply.

It addition, offer some steam vent 6a1 in all sides of left bearing room end cap 6a, the outer face of blower-casting 21 is opened It is provided with some air inlets 22 (as shown in figure 29), to realize quick heat radiating further.

After tested, the bearing that the present invention provides can reach 100,000～450 under air supporting state, the limit speed of 000rpm, because of This is for equal-wattage requirement, and the present invention can make the volume of turbogenerator be substantially reduced realization miniaturization, to promoting miniaturization The development of new and high technology has important value.

Finally be necessary it is pointed out here that: above content is served only for being described in further details technical scheme of the present invention, It is not intended that limiting the scope of the invention, those skilled in the art make according to the foregoing of the present invention one A little nonessential improvement and adjustment belong to protection scope of the present invention.

Claims

1. a little micro turbine generator, including turbine, radiator fan, motor, 2 journal bearings and 1 thrust Bearing, described turbine includes turbine, turbine cylinder, turbine air deflector and turbine air deflector housing, described heat radiation Fan includes that blower-casting, described motor include rotor, stator, axle, outer shaft and electric machine casing；It is characterized in that: institute Stating journal bearing is hybrid kinetic pressure gas journal bearing, including bearing outside, bearing inner sleeve and be arranged on bearing outside with interior Foil-type elastic component between set；Described thrust bearing is hybrid kinetic pressure gas thrust bearing, including two side panels and sandwiched Mid-game between two side panels, is equipped with foil-type elastic component between each side panel and mid-game；Described rotor is set in axle Middle part, 2 journal bearings are respectively sleeved on the outer shaft being positioned at the left and right end of rotor, and described thrust bearing is set in right-hand member On outer shaft and be positioned at the outer side of right-hand member journal bearing, described turbine and radiator fan are separately positioned on the two ends of axle.

Little micro turbine generator the most according to claim 1, it is characterised in that: described turbine is arranged on axle Left end, described radiator fan is arranged on the right-hand member of axle.

Little micro turbine generator the most according to claim 2, it is characterised in that: described little micro turbine generator Also including left radial axle bearing sleeve and left bearing room end cap, turbine cylinder is fixing with turbine air deflector housing to be connected, turbine Air deflector housing is fixing with left bearing room end cap to be connected, and left bearing room end cap is fixing with left radial axle bearing sleeve to be connected, left radial axle Bearing sleeve is fixing with electric machine casing to be connected.

Little micro turbine generator the most according to claim 3, it is characterised in that: described little micro turbine generator Also including right radial axle bearing sleeve and right bearing room end cap, blower-casting is fixing with right bearing room end cap to be connected, right bearing room end cap Fixing with right radial axle bearing sleeve and be connected, right radial axle bearing sleeve is fixing with electric machine casing to be connected, and described radiator fan is provided at the right side On axle between bearing chamber end cap and blower-casting.

Little micro turbine generator the most according to claim 4, it is characterised in that: open in all sides of left bearing room end cap It is provided with some steam vents, the outer face of blower-casting offers some air inlets.

Little micro turbine generator the most according to claim 1, it is characterised in that: open in the inwall week side of electric machine casing Being provided with some open slots, the end face at electric machine casing offers some passages, and described open slot is connected with passage.

Little micro turbine generator the most according to claim 1, it is characterised in that: the outer circumference surface of described bearing inner sleeve With the slot type decorative pattern that both ends of the surface are respectively provided with regular shape.

Little micro turbine generator the most according to claim 7, it is characterised in that: the end face of described bearing inner sleeve The slot type decorative pattern of slot type decorative pattern and other end forms specular, and the axial profile line of the slot type decorative pattern of outer circumference surface with The radial profile of the slot type decorative pattern of both ends of the surface is respectively formed one_to_one corresponding and mutually joins.

Little micro turbine generator the most according to claim 8, it is characterised in that: the outer circumference surface of described bearing inner sleeve Slot type decorative pattern in axial high bit line bit line high with the radial direction in the slot type decorative pattern of both ends of the surface the most corresponding and at end face circumference Mutually join before chamfering；Axial neutrality line in the slot type decorative pattern of outer circumference surface and position in the radial direction in the slot type decorative pattern of both ends of the surface Line is the most corresponding and mutually joins before end face peripheral chamfer；Axial low-bit line in the slot type decorative pattern of outer circumference surface and two ends Radial direction low-bit line in the slot type decorative pattern in face is the most corresponding and mutually joins before end face peripheral chamfer.

Little micro turbine generator the most according to claim 1, it is characterised in that: the both ends of the surface of described mid-game are all provided with The slot type decorative pattern of regular shape, and the slot type decorative pattern formation specular of the slot type decorative pattern of end face and other end.

11. little micro turbine generators according to claim 10, it is characterised in that: at the outer circumference surface of described mid-game It also is provided with slot type decorative pattern, and the shape of the slot type decorative pattern of outer circumference surface is identical with the shape of the slot type decorative pattern of both ends of the surface, and outward The axial profile line of the slot type decorative pattern of periphery is respectively formed one_to_one corresponding the most mutually with the radial profile of the slot type decorative pattern of both ends of the surface Handing-over.

12. little micro turbine generators according to claim 11, it is characterised in that: the slot type of the outer circumference surface of mid-game Axial high bit line bit line high with the radial direction in the slot type decorative pattern of both ends of the surface in decorative pattern is the most corresponding and before end face peripheral chamfer Mutually handing-over；Axial neutrality line in the slot type decorative pattern of outer circumference surface is homogeneous with the radial direction neutrality line in the slot type decorative pattern of both ends of the surface Correspondence also mutually joins before end face peripheral chamfer；Axial low-bit line in the slot type decorative pattern of outer circumference surface and the groove of both ends of the surface Radial direction low-bit line in formula decorative pattern is the most corresponding and mutually joins before end face peripheral chamfer.

13. little micro turbine generators according to claim 1, it is characterised in that: it is fixed on the paper tinsel on a side panel Type elastic component forms specular with the foil-type elastic component being fixed on another side panel.

14. according to the little micro turbine generator described in claim 1 or 13, it is characterised in that: described foil-type elastic component Being made up of ripple paper tinsel peace paper tinsel, the arc convex top of described ripple paper tinsel fits with flat paper tinsel.

15. according to the little micro turbine generator described in claim 1 or 13, it is characterised in that: described foil-type elastic component Being made up of ripple paper tinsel peace paper tinsel, between the ripple arch of described ripple paper tinsel, transition base fits with flat paper tinsel.

16. according to the little micro turbine generator described in claim 1 or 13, it is characterised in that: described foil-type elastic component It is made up of two flat paper tinsels.

17. little micro turbine generators according to claim 1, it is characterised in that: described rotor include rotor base, Magnet steel and magnet steel protection set, described rotor base is set on axle, and described magnetic steel sleeve is located at the central part of rotor base, institute State magnet steel protection set to be set on magnet steel.

18. little micro turbine generators according to claim 1, it is characterised in that: described stator include iron core and around Group, described iron core is held within the inwall of the electric machine casing above rotor, and described winding is arranged on iron core.

19. little micro turbine generators according to claim 18, it is characterised in that: described iron core includes by some punchings The sheet stacked stator lasmination formed up and down and the end clamp plate being fixed on stator lasmination both sides.

20. little micro turbine generators according to claim 19, it is characterised in that: described punching is annular, Ring part is interval with the perforation of multiple cup-shaped, and the rim of a cup portion of described perforation closes, the bottom opening of cup foot.

21. little micro turbine generators according to claim 18, it is characterised in that: described winding is the star-like company of three-phase Connecing, centrage is not brought up, and only draws tri-terminations of A, B, C.

22. little micro turbine generators according to claim 21, it is characterised in that: every phase winding is 2 coils, Each coil is formed by enamel covered wire continuous coiling.