CN105889097B

CN105889097B - A kind of ultrahigh speed air blower

Info

Publication number: CN105889097B
Application number: CN201610327807.5A
Authority: CN
Inventors: 罗立峰
Original assignee: Individual
Current assignee: Beijing Pujian Air Bearing Technology Application Research Institute Co ltd
Priority date: 2015-05-19
Filing date: 2016-05-18
Publication date: 2019-01-04
Anticipated expiration: 2036-05-18
Also published as: CN106026517B; CN106026517A; WO2016184408A1; WO2016184410A1; CN105889313B; CN105889314A; WO2016184406A1; WO2016184414A1; CN105889313A; TWI704751B; CN106014641A; TWI694210B; WO2016184404A1; CN105888818A; CN205864174U; WO2016184416A1; CN105889314B; CN205864143U; CN205858479U; TW201706511A

Abstract

The invention discloses a kind of ultrahigh speed air blowers, it includes impeller, motor, rotating connector and slot type kinetic pressure gas transverse bearing, the motor includes rotor, stator, shaft, end cap and shell, the shell is the circularly cylindrical structure that two cavitys are formed by inside and outside cylinder, the rotating connector is the cylinder-like structure with a cavity, the rotating connector is set in the shaft of impeller and is mutually connected respectively with impeller and roller end, and side is located to be formed by cavity by the outer cylinder and inner cylinder of shell；The inner cylinder that the slot type kinetic pressure gas transverse bearing and shaft are respectively positioned on shell is intracavitary, and the slot type kinetic pressure gas transverse bearing is set in shaft；The stator is fixed on the inner tank theca of shell, and the rotor is fixed on the side interior wall of rotating connector.Present invention can be implemented in the ultrahigh speed operatings under air bearing state can make the volume of air blower be substantially reduced realization micromation for equal-wattage requirement.

Description

A kind of ultrahigh speed air blower

Technical field

The present invention is to be related to a kind of ultrahigh speed air blower, belongs to high-accuracy field of mechanical technique.

Background technique

Air blower is mainly used for needing the position of larger air quantity in business automation equipment, passes through the resulting wind of rotary blade Power discharges the hot gas generated inside equipment, and the device of cooling is carried out to its inside.Traditional air blower is usually Common power frequency motor speedup rear-guard dynamic pressure compressor wheel is rotated using acceleration system and is done work, there are following major defects: 1. Acceleration system is sufficiently complex, and weight is big, and occupied area is more, involves great expense；2. special matched oil system is not only needed, but also It is easy to appear Leakage, application range is limited；3. gear transmission noises are big, there are certain mechanical loss, also, common power frequency Motor power (output) density is low, and volume and weight is big, and noise is high；4. acceleration system and common power frequency motor are required using axis It holds, is limited by friction and the service life of bearing, velocity of rotation cannot accomplish very high, cause system overall power density low, volume is huge Greatly, when carrying out power match with compressor impeller, there are certain difficulties；5. such as to adjust drum due to power frequency motor invariablenes turning speed The air demand of blower, it is necessary to add extremely complex air intake control system, increase manufacturing cost and control difficulty.

In order to solve above-mentioned many defects, Chinese patent literature CN102200136B present in traditional motor air blower In disclose a kind of air suspension and supply adjustable high-speed motor and directly drive air blower comprising compressor impeller, permanent magnet synchronous motor Rotor, motor stator, preceding radial air bearing, rear radial air bearing, axial thrust air bearing, volute and electric machine casing； One end of permanent-magnetic synchronous motor rotor connects compressor impeller, and motor stator drives permanent-magnetic synchronous motor rotor rotation, preceding radial direction Air bearing, rear radial air bearing, axial thrust air bearing suspension support permanent-magnetic synchronous motor rotor, volute setting are being pressed Compressor wheel periphery, electric machine casing are located at motor stator, preceding radial air bearing, rear radial air bearing, axial thrust air The periphery of bearing and permanent-magnetic synchronous motor rotor.Although the patented technology is straight by the permanent-magnetic synchronous motor rotor of high-speed motor Connect driving compressor impeller, have many advantages, such as that high-efficient, low, environmentally friendly, the applicable range of loss is wide, but the patented technology there is also Following problem: 1, revolving speed is still limited, can only realize 100,000 turns of highest of revolving speed at present；2, it is unable to longtime running: because high speed is transported Raw heat of changing the line of production cannot be exported effectively, so that stream time cannot be very long；3, the stability to run at high speed is bad, so that Dreamboat is not achieved in actual operating efficiency；4, structure is still more complex, and volume is larger, is not able to satisfy current miniaturization and wants It asks.

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 a kind of operational efficiency height, high-speed cruising Stability is good and the ultrahigh speed air blower that can work long hours.

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

A kind of ultrahigh speed air blower, including impeller and motor, the motor include rotor, stator, shaft, end cap and shell Body；It is characterized by also including a rotating connector and a slot type kinetic pressure gas transverse bearing, also, the shell be by Inside and outside cylinder forms the circularly cylindrical structure of two cavitys, and the rotating connector is the cylinder-like structure with a cavity, The rotating connector is set in the shaft of impeller, and is mutually connected respectively with impeller and roller end, and described turn The side of follower link is located to be formed by cavity by the outer cylinder and inner cylinder of shell；The slot type kinetic pressure gas transverse bearing and The inner cylinder that shaft is respectively positioned on shell is intracavitary, and the slot type kinetic pressure gas transverse bearing is set in shaft；The stator is fixed On the inner tank theca of shell, the rotor is fixed on the side interior wall of rotating connector.

Preferably, airflow channel is formed by the end for being located at shaft and slot type kinetic pressure gas transverse bearing The side of the rotating connector of top offers several air guide blades.

As further preferred scheme, several air inlets and several heat dissipation gas vents are offered in the outer cylinder side of shell.

Preferably, it is connected and fixed between the impeller and rotating connector and shaft by clamping screw.

As further preferred scheme, the shaft and clamping screw offer cavity, to mitigate the air blower Weight.

Preferably, the ultrahigh speed air blower further includes impeller housing, and the impeller housing passes through bolt and shell Outer cylinder be fixedly connected.

Preferably, the slot type kinetic pressure gas transverse bearing includes bearing outside and bearing inner sleeve, the bearing The outer circumference surface and both ends of the surface of inner sleeve 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.

Preferably, the fit clearance between the bearing inner sleeve and bearing outside is 0.003~0.008mm.

Preferably, only ring is equipped at the both ends of the bearing outside.

As a kind of embodiment, the ultrahigh speed air blower further includes a hybrid kinetic pressure gas thrust bearing, The hybrid kinetic pressure gas thrust bearing includes two side panels and the mid-game that is folded between two side panels, in each side Foil-type elastic component is equipped between disk and mid-game, also, the hybrid kinetic pressure gas thrust bearing is located at shell and end cap shape At cavity in, and be set in shaft.

Preferably, the end cap passes through the mid-game adjustment ring and shell of bolt and hybrid kinetic pressure gas thrust bearing The tail portion of body is fixedly connected.

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, wherein by proximal disc end face Flat foil has several bubblings, and the arc convex top of the bubbling fits with another flat foil.

Above-mentioned slot type decorative pattern is impeller shape.

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

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

The lubricant using gas as bearing because of air blower provided by the present invention, thus not only have it is pollution-free, rub Wear lose it is low, using many advantages, such as time is long, applied widely, energy conservation and environmental protection, and use the structure, heat dissipation effect It is good, it is ensured that long-time steady operation；Especially, because the air bearing of the structure is able to achieve the ultrahigh speed under air bearing state Operating (after tested, reachable 100, the limit speed of 000~450,000rpm), therefore for equal-wattage requirement, the present invention can So that the volume of air blower is substantially reduced realization micromation, have many advantages, such as to occupy little space, is easy to use, to promoting micromation height The development of new technology has important value, has conspicuousness progress compared with the existing technology.

Detailed description of the invention

Fig. 1 is a kind of forward sight schematic perspective view for ultrahigh speed air blower that embodiment 1 provides；

Fig. 2 is the positive structure diagram for the ultrahigh speed air blower that embodiment 1 provides；

Fig. 3 is the A-A direction view of Fig. 2；

Fig. 4 is the schematic perspective view for the rotating connector that embodiment 1 provides；

Fig. 5 is the schematic perspective view for the shell that embodiment 1 provides；

Fig. 6 is the left view schematic perspective view of the local segmentation for the slot type kinetic pressure gas transverse bearing that embodiment 1 provides；

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

Fig. 8 is the right view schematic perspective view of the local segmentation for the slot type kinetic pressure gas transverse bearing that embodiment 1 provides；

Fig. 9 is the C partial enlarged view in Fig. 8；

Figure 10 is the schematic diagram of the section structure for the hybrid kinetic pressure gas thrust bearing that embodiment 1 provides；

Figure 11 a is the left view of mid-game described in embodiment 1；

Figure 11 b is the right view of mid-game described in embodiment 1；

Figure 12 a is the right view that the left hand plate of foil-type elastic component is fixed with described in embodiment 1；

Figure 12 b is the left view that the right side disk of foil-type elastic component is fixed with described in embodiment 1；

Figure 13 is the cross section structure schematic diagram for the foil-type elastic component that embodiment 1 provides；

Figure 14 is the schematic perspective view for the foil-type elastic component that embodiment 1 provides；

Figure 15 a is a kind of left view schematic perspective view for hybrid kinetic pressure gas thrust bearing that embodiment 2 provides；

Figure 15 b is the right view schematic perspective view for the hybrid kinetic pressure gas thrust bearing that embodiment 2 provides；

Figure 16 is the local segmentation schematic perspective view for the hybrid kinetic pressure gas thrust bearing that embodiment 2 provides；

Figure 17 is the left view schematic perspective view of mid-game described in embodiment 2；

Figure 18 is the D partial enlarged view in Figure 17；

Figure 19 is the right view schematic perspective view of mid-game described in embodiment 2；

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

Figure label is schematically as follows:

1, impeller；11, impeller housing；2, motor；21, rotor；22, stator；23, shaft；231, shaft cavity；24, end cap； 25, shell；251, the outer cylinder of shell；252, the inner cylinder of shell；253, air inlet；254, radiate gas vent；3, rotating connector； 31, the side of rotating connector；32, air guide blade；4, slot type kinetic pressure gas transverse bearing；41, bearing outside；42, in bearing Set；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, axis To low-bit line；432, the slot type decorative pattern of left side；4321, radial high bit line；4322, radial neutrality line；4323, radial low level 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, only Ring；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, radial low-bit line；522, right end The slot type decorative pattern in face；5221, radial high bit line；5222, radial neutrality line；5223, radial low-bit line；523, the slot of outer circumference surface Formula decorative pattern；5231, axial high bit line；5232, axial neutrality line；5233, axial low-bit line；53, foil-type elastic component；53a, fixation Foil-type elastic component 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；54, mid-game adjustment ring；6, clamping screw；61, clamping screw cavity；7, fixed The bolt of impeller housing；8, the bolt of fixed end cap.

Specific embodiment

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

Embodiment 1

In conjunction with shown in Fig. 1 to Fig. 5: a kind of ultrahigh speed air blower provided in this embodiment, including impeller 1 and motor 2, it is described Motor 2 includes rotor 21, stator 22, shaft 23, end cap 24 and shell 25, it is characterised in that: further includes rotating connector 3, slot Formula kinetic pressure gas transverse bearing 4 and hybrid kinetic pressure gas thrust bearing 5.

The shell 25 is the circularly cylindrical structure that two cavitys are formed by inside and outside cylinder, and the rotating connector 3 is tool Have a cylinder-like structure of a cavity, the rotating connector 3 is set in the shaft 23 of impeller 1, and with impeller 1 and turn 23 end of axis is mutually connected, and the side 31 of the rotating connector 3, which is located at, to be formed by the outer cylinder 251 of shell with inner cylinder 252 Cavity in；The slot type kinetic pressure gas transverse bearing 4 and shaft 23 are respectively positioned in the cavity of inner cylinder 252 of shell, and described Slot type kinetic pressure gas transverse bearing 4 is set in shaft 23；The stator 22 is fixed on 252 outer wall of inner cylinder of shell, described Rotor 21 is fixed on the inner wall of side 31 of rotating connector 3.

The slot type kinetic pressure gas transverse bearing 4 includes bearing outside 41 and bearing inner sleeve 42；The hybrid action pneumatic Body thrust bearing 5 includes two side panels 51 and the mid-game 52 being folded between two side panels, in each side panel 51 and mid-game 52 Between be equipped with foil-type elastic component 53, also, the hybrid kinetic pressure gas thrust bearing 5 is located at shell 25 and the formation of end cap 24 Cavity in, and be set in shaft 23.

The rotation of the top of airflow channel is formed by the end for being located at shaft 23 and slot type kinetic pressure gas transverse bearing 4 The side 31 of connector 3 offers several air guide blades 32.

Several air inlets 253 and several heat dissipation gas vents 254, the air inlet are offered in 251 side of outer cylinder of shell 253 are connected with air guide blade 32.

It is connected and fixed between the impeller 1 and rotating connector 3 and shaft 23 by clamping screw 6.

In order to further mitigate the weight of the air blower, the shaft 23 and clamping screw 6 open up cavity (231/ 61)。

Preferably, the ultrahigh speed air blower further includes impeller housing 11, the impeller housing 11 by bolt 7 with The outer cylinder 251 of shell is fixedly connected.The end cap 24 is adjusted by the mid-game of bolt 8 and hybrid kinetic pressure gas thrust bearing 5 The tail portion of ring 54 and shell 25 is fixedly connected.

In conjunction with shown in Fig. 6 to Fig. 9: 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 the slot type dynamic pressure 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.

Fit clearance between the bearing outside 41 and bearing inner sleeve 42 is preferably 0.003~0.008mm, with further true Protect the reliability and stability that bearing runs at high speed.

It is as shown in Figure 10: a kind of hybrid kinetic pressure gas thrust bearing 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 11 a and Figure 11 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 12 a and Figure 12 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 12 a foil-type elastic component 53a left hand plate 511 and Figure 12 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.

In conjunction with shown in Figure 10 and Figure 13, Figure 14: the foil-type elastic component 53 is made of the peaceful foil 532 of wave foil 531, described The top of the arc convex 5311 of wave foil 531 fits with flat foil 532, between the wave of the wave foil 531 arch transition bottom edge 5312 with The inner face of corresponding side panel 51 fits.

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.

Embodiment 2

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 15 a, 15b, 16 to 20 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 18) 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 20) 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 air blower provides.

The card slot 513 (as shown in figure 16) 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, straight It connects using two flat foil compositions, wherein the flat foil by proximal disc end face has several bubblings, the arc convex top of the bubbling It fits with another flat foil；Or using other existing structures.

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 air blower be substantially reduced realization micromation, and promotion is miniaturized The development of 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 ultrahigh speed air blower, including impeller, motor and a rotating connector, the motor includes rotor, stator, turns Axis, end cap and shell, the shell are the circularly cylindrical structure that two cavitys are formed by inside and outside cylinder, the rotating connector The cylinder-like structure with a cavity, the rotating connector is set in the shaft of impeller, and with impeller and turn Axial end portion is not connected mutually, and the side of the rotating connector, which is located at, is formed by cavity by the outer cylinder and inner cylinder of shell Interior, the inner cylinder that the shaft is respectively positioned on shell is intracavitary, and the stator is fixed on the inner tank theca of shell, and the rotor is fixed on On the side interior wall of rotating connector；It is characterized by also including a slot type kinetic pressure gas transverse bearing, the slot type dynamic pressures Gas lubricated journal bearing includes bearing outside and bearing inner sleeve；Also, the slot type kinetic pressure gas transverse bearing is set in shaft, The side of the rotating connector of the top of airflow channel is formed by the end for being located at shaft and slot type kinetic pressure gas transverse bearing Portion offers several air guide blades, offers several air inlets and several heat dissipation gas vents in the outer cylinder side of shell.

2. ultrahigh speed air blower according to claim 1, it is characterised in that: on the outer circumference surface of the bearing inner sleeve and two The slot type decorative pattern of regular shape is all had on end face.

3. ultrahigh speed air blower according to claim 2, it is characterised in that: the slot type on an end face of the bearing inner sleeve Slot type decorative pattern on decorative pattern and other end formed the axial profile line of mirror symmetry and the slot type decorative pattern on outer circumference surface with The radial profile of slot type decorative pattern in both ends of the surface, which is respectively formed, to be corresponded and mutually joins.

4. ultrahigh speed air blower according to claim 3, it is characterised in that: the slot on the outer circumference surface of the bearing inner sleeve The high bit line of axial direction in formula decorative pattern is homogeneously corresponding with the high bit line of radial direction in the slot type decorative pattern in both ends of the surface and falls in end face circumference Mutually join before angle；In the axial neutrality line in slot type decorative pattern on outer circumference surface and the radial direction in the slot type decorative pattern in both ends of the surface Bit line is corresponding and mutually joins before the peripheral chamfer of end face；Axial low-bit line in slot type decorative pattern on outer circumference surface with The radial low-bit line in slot type decorative pattern in both ends of the surface is corresponding and mutually joins before the peripheral chamfer of end face.

5. ultrahigh speed air blower according to any one of claim 1 to 4, it is characterised in that: the ultrahigh speed air blast Machine further includes a hybrid kinetic pressure gas thrust bearing, the hybrid kinetic pressure gas thrust bearing include two side panels with And it is folded in the mid-game between two side panels, foil-type elastic component, also, the mixing are equipped between each side panel and mid-game Formula kinetic pressure gas thrust bearing is located in the cavity that shell and end cap are formed, and is set in shaft.

6. ultrahigh speed air blower according to claim 5, it is characterised in that: be all provided in the both ends of the surface of the mid-game regular The slot type decorative pattern of shape, and the slot type decorative pattern on an end face and the slot type decorative pattern on other end form mirror symmetry.

7. ultrahigh speed air blower according to claim 6, it is characterised in that: also be provided on the outer circumference surface of the mid-game Slot type decorative pattern, and the shape of the slot type decorative pattern on outer circumference surface is identical as the shape of slot type decorative pattern in both ends of the surface and outer circle The axial profile line of slot type decorative pattern on circumferential surface and the radial profile of the slot type decorative pattern in both ends of the surface are respectively formed one-to-one correspondence simultaneously Mutually handover.

8. ultrahigh speed air blower according to claim 7, it is characterised in that: in the slot type decorative pattern on the outer circumference surface of mid-game The high bit line of axial direction it is homogeneously corresponding with the high bit line of radial direction in the slot type decorative pattern in both ends of the surface and before the peripheral chamfer of end face mutually Handover；The axial neutrality line in slot type decorative pattern on outer circumference surface and the radial neutrality line in the slot type decorative pattern in both ends of the surface are homogeneous It corresponds to and mutually joins before the peripheral chamfer of end face；On the axial low-bit line and both ends of the surface in slot type decorative pattern on 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. ultrahigh speed air blower according to claim 5, it is characterised in that: the foil-type elastic component being fixed on a side panel Mirror symmetry is formed with the foil-type elastic component being fixed on another side panel.

10. ultrahigh speed air blower according to claim 5, it is characterised in that: the foil-type elastic component is by wave foil peace Foil composition, arc convex top and the flat foil of the wave foil fit, transition bottom edge and corresponding side panel between the wave of the wave foil encircles Inner face fit.

11. ultrahigh speed air blower according to claim 5, it is characterised in that: the foil-type elastic component is by wave foil peace Foil composition, transition bottom edge fits with flat foil between the wave of the wave foil encircles.

12. ultrahigh speed air blower according to claim 5, it is characterised in that: the foil-type elastic component is by two flat foils Composition, wherein the flat foil by proximal disc end face has several bubblings, the arc convex top of the bubbling and another flat foil phase Fitting.