TW201706511A

TW201706511A - Ultra-high speed turbocharger

Info

Publication number: TW201706511A
Application number: TW105115472A
Authority: TW
Inventors: Li-Feng Luo
Original assignee: Li-Feng Luo
Priority date: 2015-05-19
Filing date: 2016-05-19
Publication date: 2017-02-16
Also published as: CN205858947U; WO2016184416A1; WO2016184412A1; CN205858494U; CN106026517A; CN105889314B; CN205864174U; CN205858948U; TWI704751B; TW201706516A; CN106026492B; CN105889097A; CN106026492A; CN205864143U; TWI694210B; CN106014641B; CN105889097B; CN105888818A; CN105888818B; WO2016184406A1

Abstract

An ultra-high speed turbocharger, comprising a turbine machine, a compressor, a rotary shaft, two radial bearings, a thrust bearing and a main housing, the radial bearings being groove-type dynamic pressure gas radial bearings, the thrust bearing being a mixed-type dynamic pressure gas thrust bearing, the main housing being sleeved at a central portion of the rotary shaft, the two radial bearings being respectively sleeved on the rotary shaft within the main housing, the thrust bearing being sleeved on the rotary shaft between the main housing and a pressure wheel. The ultra-high speed turbocharger implements an ultra-high speed stable operation in an air state, and with regard to identical power requirements, enables the size of the turbocharger to be significantly reduced for miniaturisation.

Description

超高速鼓風機Ultra high speed blower

本發明是關於高精密機械技術領域，特別是關於一種超高速鼓風機。This invention relates to the field of high precision mechanical technology, and more particularly to an ultra high speed blower.

鼓風機主要用於辦公自動化設備中需要較大風量的部位，通過旋轉葉輪所得的風力將設備內部産生的熱氣向外排出，對其內部進行散熱冷却的裝置。傳統的鼓風機通常是採用增速系統對普通工頻電動機增速後驅動壓氣機葉輪旋轉做功，存在如下主要缺陷：①增速系統十分複雜，重量大，占地面積多，造價昂貴；②不僅需要專門配套的滑油系統，而且容易出現漏油問題，應用範圍受限；③齒輪傳動噪聲大，存在一定機械損失，並且，普通工頻電動機功率密度低，體積和重量大，噪聲高；④增速系統和普通工頻電動機都需要應用軸承，受制於軸承的摩擦和壽命，轉動速度不能做到很高，導致系統整體功率密度低，體積巨大，在和壓氣機葉輪進行功率匹配時存在一定困難；⑤由於工頻電機轉速恒定，如要調節鼓風機的供氣量，必須添加非常複雜的進氣控制系統，增加製造成本及控制難度。The air blower is mainly used in a part of an office automation equipment that requires a large amount of air, and the hot air generated inside the device is discharged outward by the wind generated by rotating the impeller, and the device is internally cooled and cooled. The traditional blower usually uses the speed increasing system to drive the compressor impeller to rotate after the speed increase of the ordinary power frequency motor. The main defects are as follows: 1 The speed increasing system is very complicated, the weight is large, the floor space is large, and the cost is expensive; Specially equipped oil system, and easy to leak oil problem, limited application range; 3 gear transmission noise is large, there is a certain mechanical loss, and ordinary power frequency motor has low power density, large volume and weight, high noise; Both the speed system and the ordinary power frequency motor need to apply the bearing. Due to the friction and life of the bearing, the rotation speed cannot be very high, resulting in low overall power density and large volume of the system. It is difficult to match the power of the compressor impeller. 5 Because the speed of the power frequency motor is constant, if the air supply volume of the air blower is to be adjusted, a very complicated air intake control system must be added to increase the manufacturing cost and control difficulty.

爲了解决傳統的電機鼓風機所存在的上述諸多缺陷，中國專利文獻CN102200136 B中公開了一種空氣懸浮供氣可調高速電機直驅鼓風機，其包括壓氣機葉輪、永磁同步電機轉子、電機定子、前徑向空氣軸承、後徑向空氣軸承、軸向止推空氣軸承、渦殼和電機殼體；永磁同步電機轉子的一端連接壓氣機葉輪，電機定子驅動永磁同步電機轉子旋轉，前徑向空氣軸承、後徑向空氣軸承、軸向止推空氣軸承懸浮支撑永磁同步電機轉子，渦殼設置在壓氣機葉輪外圍，電機殼體位於電機定子、前徑向空氣軸承、後徑向空氣軸承、軸向止推空氣軸承和永磁同步電機轉子的外圍。雖然該專利技術通過高速電動機的永磁同步電機轉子直接驅動壓氣機葉輪，具有效率高、損耗低、環保、可適用範圍廣等優點，但該專利技術還存在如下問題：1、轉速仍然有限，目前只能實現最高10萬轉的轉速；2、不能長期運行：因高速運轉産生的熱量不能有效導出，以致連續工作時間不能很長；3、高速運轉的穩定性不佳，以致實際運行效率達不到理想目標；4、結構仍然較複雜，體積較大，不能滿足當今微型化發展要求。In order to solve the above-mentioned defects of the conventional motor blower, the Chinese patent document CN102200136 B discloses an air suspension gas supply adjustable high speed motor direct drive blower, which comprises a compressor impeller, a permanent magnet synchronous motor rotor, a motor stator, and a front Radial air bearing, rear radial air bearing, axial thrust air bearing, volute and motor housing; one end of the permanent magnet synchronous motor rotor is connected to the compressor impeller, and the motor stator drives the permanent magnet synchronous motor rotor to rotate, the front diameter The air bearing, the rear radial air bearing and the axial thrust air bearing are suspended to support the permanent magnet synchronous motor rotor, and the scroll is disposed at the periphery of the compressor impeller, and the motor housing is located at the motor stator, the front radial air bearing, and the rear radial Air bearing, axial thrust air bearing and the periphery of the permanent magnet synchronous motor rotor. Although the patented technology directly drives the compressor impeller through the permanent magnet synchronous motor rotor of the high-speed motor, the utility model has the advantages of high efficiency, low loss, environmental protection, wide applicable range, and the like, but the patent technology still has the following problems: 1. The rotational speed is still limited. At present, it can only achieve a speed of up to 100,000 rpm; 2. It can not be operated for a long time: the heat generated by high-speed operation cannot be effectively exported, so that the continuous working time cannot be very long; 3. The stability of high-speed operation is not good, so that the actual operating efficiency is up to Not ideal goals; 4, the structure is still relatively complex, large size, can not meet the requirements of today's miniaturization development.

針對現有技術存在的上述問題，本發明的目的是提供一種運行效率高、高速運行穩定性好及可長時間工作的超高速鼓風機。In view of the above problems existing in the prior art, an object of the present invention is to provide an ultrahigh speed blower which has high operation efficiency, high speed operation stability, and can work for a long time.

爲實現上述目的，本發明採用的技術方案如下：一種超高速鼓風機，包括葉輪和電機，所述電機包括轉子、定子、轉軸、端蓋和殼體；其特徵在於：還包括一轉動連接件和一個槽式動壓氣體徑向軸承，並且，所述殼體是由內、外筒形成兩個空腔的環形圓筒狀結構，所述轉動連接件是具有一個空腔的圓筒狀結構，所述轉動連接件套設在靠近葉輪的轉軸上，並與葉輪和轉軸端部分別相契合連接，所述轉動連接件的側部位於由殼體的外筒與內筒所形成的空腔內；所述槽式動壓氣體徑向軸承和轉軸均位於殼體的內筒腔內，且所述槽式動壓氣體徑向軸承套設在轉軸上；所述定子固定在殼體的內筒外壁上，所述轉子固定在轉動連接件的側部內壁上。In order to achieve the above object, the technical solution adopted by the present invention is as follows: An ultra-high-speed air blower comprising an impeller and an electric motor, the electric machine comprising a rotor, a stator, a rotating shaft, an end cover and a casing; and characterized in that: further comprising a rotating connecting member and a trough dynamic pressure gas radial bearing, and the casing is an annular cylindrical structure in which two cavities are formed by inner and outer cylinders, and the rotary connecting member is a cylindrical structure having a cavity. The rotating connecting member is sleeved on a rotating shaft close to the impeller, and is respectively coupled with the end of the impeller and the rotating shaft, and the side of the rotating connecting member is located in a cavity formed by the outer cylinder and the inner cylinder of the casing. The slotted dynamic pressure gas radial bearing and the rotating shaft are both located in the inner cylinder cavity of the casing, and the slot type dynamic pressure gas radial bearing is sleeved on the rotating shaft; the stator is fixed in the inner cylinder of the casing On the outer wall, the rotor is fixed to the side inner wall of the rotary joint.

作爲優選方案，在位於轉軸與槽式動壓氣體徑向軸承的端部所形成的氣流通道的上方的轉動連接件的側部開設有若干導氣葉片。Preferably, a plurality of air guide vanes are provided at a side of the rotary joint located above the air flow passage formed at the end of the rotary shaft and the slotted dynamic gas radial bearing.

作爲進一步優選方案，在殼體的外筒周側開設有若干進氣孔和若干散熱排氣孔。As a further preferred solution, a plurality of air inlet holes and a plurality of heat dissipation vent holes are formed on the outer circumference side of the outer casing of the casing.

作爲優選方案，所述葉輪與轉動連接件及轉軸間通過鎖緊螺栓連接固定。Preferably, the impeller is fixedly connected to the rotating connecting member and the rotating shaft by a locking bolt.

作爲進一步優選方案，所述轉軸和鎖緊螺栓均開設有空腔，以减輕所述鼓風機的重量。As a further preferred solution, the rotating shaft and the locking bolt are both provided with a cavity to reduce the weight of the blower.

作爲優選方案，所述的超高速鼓風機還包括葉輪殼，所述葉輪殼通過螺栓與殼體的外筒固定連接。Preferably, the ultra high speed blower further comprises an impeller casing, the impeller casing being fixedly connected to the outer cylinder of the casing by bolts.

作爲優選方案，所述槽式動壓氣體徑向軸承包括軸承外套和軸承內套，所述軸承內套的外圓周面和兩端面均具有規則形狀的槽式花紋。Preferably, the trough dynamic pressure gas radial bearing comprises a bearing outer casing and a bearing inner sleeve, and the outer circumferential surface and the opposite end surfaces of the inner bearing sleeve have regular groove patterns.

作爲進一步優選方案，所述軸承內套的一端面的槽式花紋與另一端面的槽式花紋形成鏡像對稱，以及外圓周面的槽式花紋的軸向輪廓線與兩端面的槽式花紋的徑向輪廓線均形成一一對應並相互交接。In a further preferred embodiment, the groove pattern of one end surface of the bearing inner sleeve is mirror-symmetrical with the groove pattern of the other end surface, and the axial contour line of the groove pattern of the outer circumferential surface and the groove pattern of the both end surfaces The radial contour lines form a one-to-one correspondence and intersect each other.

作爲進一步優選方案，所述軸承內套的外圓周面的槽式花紋中的軸向高位線與兩端面的槽式花紋中的徑向高位線均相對應、並在端面圓周倒角前相互交接；外圓周面的槽式花紋中的軸向中位線與兩端面的槽式花紋中的徑向中位線均相對應、並在端面圓周倒角前相互交接；外圓周面的槽式花紋中的軸向低位線與兩端面的槽式花紋中的徑向低位線均相對應、並在端面圓周倒角前相互交接。In a further preferred embodiment, the axial high line in the groove pattern of the outer circumferential surface of the bearing inner sleeve corresponds to the radial high line in the groove pattern on both end faces, and is mutually overlapped before the end face is chamfered. The axial median line in the groove pattern of the outer circumferential surface corresponds to the radial median line in the groove pattern on both end faces, and is mutually overlapped before the end face is chamfered; the groove pattern of the outer circumferential surface The axial lower line in the middle corresponds to the radially lower line in the groove pattern on both end faces, and is mutually overlapped before the end face is chamfered.

作爲優選方案，所述軸承內套與軸承外套間的配合間隙爲0.003～0.008mm。Preferably, the matching gap between the bearing inner sleeve and the bearing outer sleeve is 0.003 to 0.008 mm.

作爲優選方案，在所述軸承外套的兩端設有止環。Preferably, a stop ring is provided at both ends of the bearing housing.

作爲一種實施方案，所述的超高速鼓風機還包括一個混合式動壓氣體止推軸承，所述的混合式動壓氣體止推軸承包括兩個側盤以及夾設在兩個側盤之間的中盤，在每個側盤與中盤之間均設有箔型彈性件，並且，所述混合式動壓氣體止推軸承位於殼體與端蓋形成的腔體內，並套設在轉軸上。In one embodiment, the ultra high speed blower further includes a hybrid dynamic pressure gas thrust bearing, the hybrid dynamic pressure gas thrust bearing comprising two side plates and being sandwiched between the two side plates The middle plate has a foil-type elastic member disposed between each of the side plates and the middle plate, and the hybrid dynamic pressure gas thrust bearing is located in a cavity formed by the housing and the end cover, and is sleeved on the rotating shaft.

作爲優選方案，所述端蓋通過螺栓與混合式動壓氣體止推軸承的中盤調整環及殼體的尾部固定連接。Preferably, the end cap is fixedly connected to the middle disc adjusting ring of the hybrid dynamic pressure gas thrust bearing and the tail of the housing by bolts.

作爲優選方案，所述中盤的兩端面均設有規則形狀的槽式花紋，且一端面的槽式花紋與另一端面的槽式花紋形成鏡像對稱。Preferably, both end faces of the middle plate are provided with a regular pattern of groove patterns, and the groove pattern of one end face is mirror-symmetrical with the groove pattern of the other end face.

作爲優選方案，在所述中盤的外圓周面也設有槽式花紋，且外圓周面的槽式花紋的形狀與兩端面的槽式花紋的形狀相同，以及外圓周面的槽式花紋的軸向輪廓線與兩端面的槽式花紋的徑向輪廓線均形成一一對應並相互交接。Preferably, the outer circumferential surface of the intermediate disk is also provided with a groove pattern, and the shape of the groove pattern of the outer circumferential surface is the same as the shape of the groove pattern of the both end faces, and the axis of the groove pattern of the outer circumferential surface The one-to-one correspondence is made to the radial contour lines of the groove pattern of the contour line and the both end faces, and they are mutually connected.

作爲進一步優選方案，中盤的外圓周面的槽式花紋中的軸向高位線與兩端面的槽式花紋中的徑向高位線均相對應、並在端面圓周倒角前相互交接；外圓周面的槽式花紋中的軸向中位線與兩端面的槽式花紋中的徑向中位線均相對應、並在端面圓周倒角前相互交接；外圓周面的槽式花紋中的軸向低位線與兩端面的槽式花紋中的徑向低位線均相對應、並在端面圓周倒角前相互交接。As a further preferred embodiment, the axial high line in the groove pattern of the outer circumferential surface of the intermediate disk corresponds to the radial high line in the groove pattern on both end faces, and is mutually overlapped before the end face is chamfered; the outer circumferential surface The axial median line in the trough pattern corresponds to the radial median line in the groove pattern on both end faces, and crosses each other before the end face is chamfered; the axial direction in the groove pattern of the outer circumferential surface The lower bit line corresponds to the radially lower line in the groove pattern on both end faces, and is mutually overlapped before the end face is chamfered.

作爲進一步優選方案，在與中盤相配合的箔型彈性件的配合面上設有耐磨塗層。As a further preferred embodiment, a wear-resistant coating is provided on the mating surface of the foil-type elastic member that is fitted to the intermediate disk.

作爲進一步優選方案，所述箔型彈性件與中盤的配合間隙爲0.003～0.008mm。As a further preferred solution, the fitting gap between the foil-type elastic member and the middle plate is 0.003 to 0.008 mm.

作爲進一步優選方案，所述箔型彈性件的至少一端固定在對應側盤的內端面上。As a further preferred aspect, at least one end of the foil-type elastic member is fixed to an inner end surface of the corresponding side disk.

作爲進一步優選方案，每個側盤上的箔型彈性件爲多個，且沿側盤的內端面均勻分布。As a further preferred embodiment, the foil-type elastic members on each of the side plates are plural and evenly distributed along the inner end faces of the side plates.

作爲進一步優選方案，固定在一個側盤上的箔型彈性件與固定在另一個側盤上的箔型彈性件形成鏡像對稱。As a further preferred embodiment, the foil-type elastic member fixed to one side disk is mirror-symmetrical to the foil-shaped elastic member fixed to the other side disk.

作爲進一步優選方案，在側盤的內端面設有用於固定箔型彈性件的卡槽。As a further preferred aspect, a card slot for fixing the foil-type elastic member is provided on the inner end surface of the side disk.

作爲一種實施方案，所述的箔型彈性件由波箔和平箔組成，所述波箔的弧形凸起頂端與平箔相貼合。As an embodiment, the foil-type elastic member is composed of a wave foil and a flat foil, and the curved convex top end of the wave foil is attached to the flat foil.

作爲另一種實施方案，所述的箔型彈性件由波箔和平箔組成，所述波箔的波拱間過渡底邊與平箔相貼合。In another embodiment, the foil-type elastic member is composed of a wave foil and a flat foil, and the inter-wave arch transition bottom edge of the wave foil is in contact with the flat foil.

作爲又一種實施方案，所述的箔型彈性件由兩個平箔組成，其中靠近側盤端面的平箔具有若干鼓泡，所述鼓泡的弧形凸起頂端與另一個平箔相貼合。In still another embodiment, the foil-type elastic member is composed of two flat foils, wherein the flat foil near the end surface of the side disk has a plurality of bubbles, and the curved convex top end of the bubble is attached to the other flat foil. Hehe.

上述的槽式花紋均爲葉輪形狀。The above-mentioned groove patterns are all impeller shapes.

上述的箔型彈性件優選經過表面熱處理。The above-mentioned foil-type elastic member is preferably subjected to surface heat treatment.

與現有技術相比，本發明具有如下有益效果：因本發明所提供的鼓風機，是以氣體作爲軸承的潤滑劑，因此不僅具有無污染、摩擦損失低、使用時間長、適用範圍廣、節能環保等諸多優點，而且採用所述結構，散熱效果好，可保證長時間穩定運行；尤其是，因所述結構的空氣軸承能實現在氣浮狀態下的超高速運轉（經測試，可達100,000～450,000rpm的極限轉速），因此針對相同功率要求，本發明可使鼓風機的體積顯著减小實現微型化，具有占用空間小、使用便捷等優點，對促進微型化高新技術的發展具有重要價值，相對於現有技術具有顯著性進步。Compared with the prior art, the present invention has the following beneficial effects: The air blower provided by the present invention uses gas as a lubricant for the bearing, so that it has not only pollution-free, low friction loss, long use time, wide application range, and energy saving and environmental protection. And many advantages, and the use of the structure, the heat dissipation effect is good, can ensure stable operation for a long time; in particular, the air bearing of the structure can achieve ultra-high speed operation under air-floating state (tested, up to 100,000~ 450,000 rpm limit speed), therefore, the present invention can significantly reduce the volume of the blower to achieve miniaturization for the same power requirement, has the advantages of small footprint, convenient use, etc., and is of great value for promoting the development of miniaturization high-tech, relatively Significant progress has been made in the prior art.

下面結合附圖及實施例對本發明的技術方案做進一步詳細地說明。實施例1The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Example 1

結合圖1至圖5所示：本實施例提供的一種超高速鼓風機，包括葉輪1和電機2，所述電機2包括轉子21、定子22、轉軸23、端蓋24和殼體25，其特徵在於：還包括轉動連接件3、槽式動壓氣體徑向軸承4和混合式動壓氣體止推軸承5。1 to 5: an ultra-high speed blower provided by the embodiment includes an impeller 1 and a motor 2, the motor 2 including a rotor 21, a stator 22, a rotating shaft 23, an end cover 24 and a casing 25, which are characterized. It is further comprised of a rotary joint 3, a trough dynamic gas radial bearing 4 and a hybrid dynamic pressure thrust bearing 5.

所述殼體25是由內、外筒形成兩個空腔的環形圓筒狀結構，所述轉動連接件3是具有一個空腔的圓筒狀結構，所述轉動連接件3套設在靠近葉輪1的轉軸23上，並與葉輪1和轉軸23端部相契合連接，所述轉動連接件3的側部31位於由殼體的外筒251與內筒252所形成的空腔內；所述槽式動壓氣體徑向軸承4和轉軸23均位於殼體的內筒252的空腔內，且所述槽式動壓氣體徑向軸承4套設在轉軸23上；所述定子22固定在殼體的內筒252外壁上，所述轉子21固定在轉動連接件3的側部31的內壁上。The housing 25 is an annular cylindrical structure in which two cavities are formed by inner and outer cylinders, and the rotary connecting member 3 is a cylindrical structure having a cavity, and the rotating connecting member 3 is sleeved close to The rotating shaft 23 of the impeller 1 is coupled to the end of the impeller 1 and the rotating shaft 23, and the side portion 31 of the rotating connecting member 3 is located in a cavity formed by the outer cylinder 251 and the inner cylinder 252 of the casing; The slotted dynamic pressure gas radial bearing 4 and the rotating shaft 23 are both located in the cavity of the inner cylinder 252 of the casing, and the slot type dynamic pressure gas radial bearing 4 is sleeved on the rotating shaft 23; the stator 22 is fixed On the outer wall of the inner cylinder 252 of the casing, the rotor 21 is fixed to the inner wall of the side portion 31 of the rotary joint 3.

所述槽式動壓氣體徑向軸承4包括軸承外套41和軸承內套42；所述混合式動壓氣體止推軸承5包括兩個側盤51以及夾設在兩個側盤之間的中盤52，在每個側盤51與中盤52之間均設有箔型彈性件53，並且，所述混合式動壓氣體止推軸承5位於殼體25與端蓋24形成的腔體內，並套設在轉軸23上。The trough dynamic pressure gas radial bearing 4 includes a bearing outer casing 41 and a bearing inner sleeve 42; the hybrid dynamic pressure gas thrust bearing 5 includes two side discs 51 and a middle disc sandwiched between the two side discs 52, a foil-type elastic member 53 is disposed between each of the side plates 51 and the intermediate plate 52, and the hybrid dynamic pressure gas thrust bearing 5 is located in a cavity formed by the housing 25 and the end cover 24, and is sleeved. It is arranged on the rotating shaft 23.

在位於轉軸23與槽式動壓氣體徑向軸承4的端部所形成的氣流通道的上方的轉動連接件3的側部31開設有若干導氣葉片32。A plurality of air guide vanes 32 are formed in the side portion 31 of the rotary link 3 above the air flow passage formed at the end of the rotary shaft 23 and the slot type dynamic pressure gas radial bearing 4.

在殼體的外筒251周側開設有若干進氣孔253和若干散熱排氣孔254，所述進氣孔253與導氣葉片32相連通。A plurality of intake holes 253 and a plurality of heat dissipation vent holes 254 are opened on the circumferential side of the outer cylinder 251 of the casing, and the intake holes 253 communicate with the air guide vanes 32.

所述葉輪1與轉動連接件3及轉軸23間通過鎖緊螺栓6連接固定。The impeller 1 is connected and fixed to the rotary joint 3 and the rotating shaft 23 by a locking bolt 6.

爲了進一步减輕所述鼓風機的重量，所述轉軸23和鎖緊螺栓6均開設空腔（231/61）。In order to further reduce the weight of the blower, the rotating shaft 23 and the locking bolt 6 both open a cavity (231/61).

作爲優選方案，所述的超高速鼓風機還包括葉輪殼11，所述葉輪殼11通過螺栓7與殼體的外筒251固定連接。所述端蓋24通過螺栓8與混合式動壓氣體止推軸承5的中盤調整環54及殼體25的尾部固定連接。Preferably, the ultra high speed blower further comprises an impeller casing 11 which is fixedly connected to the outer cylinder 251 of the casing by bolts 7. The end cap 24 is fixedly coupled to the middle disc adjusting ring 54 of the hybrid dynamic pressure gas thrust bearing 5 and the tail portion of the housing 25 by bolts 8.

結合圖6至圖9所示：所述軸承內套42的外圓周面和左、右端面均具有規則形狀的槽式花紋43（如圖中的431、432和433，本實施例中的槽式花紋均爲葉輪形狀），且左端面的槽式花紋432與右端面的槽式花紋433形成鏡像對稱。位於軸承內套42的外圓周面的槽式花紋431的軸向輪廓線與左、右端面的槽式花紋（432和433）的徑向輪廓線均形成一一對應並相互交接，即：外圓周面的槽式花紋431中的軸向高位線4311與左、右端面的槽式花紋（432和433）中的徑向高位線（4321和4331）均相對應、並在端面圓周倒角前相互交接；外圓周面的槽式花紋431中的軸向中位線4312與左、右端面的槽式花紋（432和433）中的徑向中位線（4322和4332）均相對應、並在端面圓周倒角前相互交接；外圓周面的槽式花紋431中的軸向低位線4313與左、右端面的槽式花紋（432和433）中的徑向低位線（4323和4333）均相對應、並在端面圓周倒角前相互交接。6 to 9, the outer circumferential surface and the left and right end surfaces of the bearing inner sleeve 42 each have a regular shape of the groove pattern 43 (431, 432 and 433 in the figure, the groove in this embodiment). The pattern is an impeller shape), and the groove pattern 432 of the left end surface is mirror-symmetrical with the groove pattern 433 of the right end surface. The axial contour line of the groove pattern 431 located on the outer circumferential surface of the bearing inner sleeve 42 forms a one-to-one correspondence with the radial contour lines of the groove patterns (432 and 433) of the left and right end surfaces, and is mutually overlapped, that is, external The axially high bit line 4311 in the circumferential groove pattern 431 corresponds to the radial high bit lines (4321 and 4331) in the groove patterns (432 and 433) of the left and right end faces, and is chamfered before the end face is chamfered Interacting with each other; the axial center line 4312 in the groove pattern 431 of the outer circumferential surface corresponds to the radial center line (4322 and 4332) in the groove patterns (432 and 433) of the left and right end faces, and The front end is circumferentially chamfered to each other; the axially lower bit line 4313 in the groove pattern 431 of the outer circumferential surface and the radially lower line (4323 and 4333) in the groove patterns (432 and 433) of the left and right end faces are both Corresponding to each other and overlapping each other before the end face is chamfered.

通過使軸承內套42的外圓周面和兩端面均具有規則形狀的槽式花紋（431、432和433），左端面的槽式花紋432與右端面的槽式花紋433形成鏡像對稱及外圓周面的槽式花紋431的軸向輪廓線與左、右端面的槽式花紋（432和433）的徑向輪廓線均形成一一對應並相互交接，可保證兩端面的葉輪形狀的槽式花紋（432和433）所産生的增壓氣體從軸心沿徑向不斷地往外圓周面的槽式花紋431形成的凹槽通道裏輸送，以致形成更强支撑高速運轉軸承所需的氣膜，而氣膜即作爲動壓氣體徑向軸承的潤滑劑，因此有利於實現所述槽式動壓氣體徑向軸承4在氣浮狀態下的高速穩定運轉。By making the outer circumferential surface and the both end surfaces of the bearing inner sleeve 42 have regular groove patterns (431, 432, and 433), the groove pattern 432 of the left end surface and the groove pattern 433 of the right end surface are mirror-symmetrical and outer circumference. The axial contour line of the groove pattern 431 forms a one-to-one correspondence with the radial contour lines of the groove patterns (432 and 433) of the left and right end faces, and mutually intersects each other, thereby ensuring the groove pattern of the impeller shape at both end faces. The pressurized gas generated by (432 and 433) is transported from the axial direction of the shaft to the groove passage formed by the groove pattern 431 of the outer circumferential surface, so as to form a gas film required for supporting the high-speed running bearing more strongly, and The gas film is used as a lubricant for the dynamic pressure gas radial bearing, and thus is advantageous for achieving high-speed stable operation of the trough type dynamic pressure gas radial bearing 4 in an air floating state.

另外，當在軸承外套41的兩端分別設置止環44時，可實現在高速回轉軸的帶動下，使軸承內套42的兩端面與止環44間産生自密封作用，使槽式花紋連續産生的動壓氣體能完好地密閉保存在軸承的整個配合間隙中，充分保證高速運轉的動壓氣體徑向軸承的潤滑需要。In addition, when the retaining ring 44 is respectively disposed at both ends of the bearing outer casing 41, the self-sealing action between the end faces of the bearing inner sleeve 42 and the retaining ring 44 can be achieved under the driving of the high-speed rotating shaft, so that the trough pattern is continuous. The generated dynamic pressure gas can be well sealed and stored in the entire matching clearance of the bearing, which fully ensures the lubrication of the high-speed running dynamic pressure gas radial bearing.

所述軸承外套41與軸承內套42間的配合間隙優選爲0.003～0.008mm，以進一步確保軸承高速運轉的可靠性和穩定性。The fitting clearance between the bearing outer casing 41 and the bearing inner sleeve 42 is preferably 0.003 to 0.008 mm to further ensure the reliability and stability of the bearing at high speed.

如圖10所示：本實施例提供的一種混合式動壓氣體止推軸承，包括：兩個側盤51，在兩個側盤51之間夾設有中盤52，在每個側盤51與中盤52之間設有箔型彈性件53；所述中盤52的左端面設有規則形狀的槽式花紋521，右端面設有規則形狀的槽式花紋522。As shown in FIG. 10, a hybrid dynamic pressure gas thrust bearing provided by the embodiment includes: two side discs 51, and a middle disc 52 is interposed between the two side discs 51, and each side disc 51 is A foil-shaped elastic member 53 is disposed between the intermediate discs 52; a left-hand end surface of the intermediate disc 52 is provided with a regular groove pattern 521, and a right end surface is provided with a regular-shaped groove pattern 522.

結合圖11a和圖11b可見：所述中盤52的左端面的槽式花紋521與右端面的槽式花紋522之間形成鏡像對稱，左端面的槽式花紋521的徑向輪廓線與右端面的槽式花紋522的徑向輪廓線形成一一對應。Referring to FIG. 11a and FIG. 11b, it can be seen that the groove pattern 521 of the left end surface of the middle plate 52 and the groove pattern 522 of the right end surface form mirror symmetry, and the radial contour line and the right end surface of the groove pattern 521 of the left end surface are formed. The radial contours of the groove pattern 522 form a one-to-one correspondence.

所述的槽式花紋521與522的形狀相同，本實施例中均爲葉輪形狀。The troughs 521 and 522 have the same shape, and are in the shape of an impeller in this embodiment.

進一步結合圖12a和圖12b可見：所述箔型彈性件53固定在對應側盤51的內端面上(例如圖12a所示的固定有箔型彈性件53a的左側盤511和圖12b所示的固定有箔型彈性件53b的右側盤512)，且固定在左側盤511上的箔型彈性件53a與固定在右側盤512上的箔型彈性件53b形成鏡像對稱。在每個側盤上的箔型彈性件可爲多個（圖中示出的是4個），且沿側盤的內端面均勻分布。12a and 12b, the foil-type elastic member 53 is fixed to the inner end surface of the corresponding side disk 51 (for example, the left side disk 511 to which the foil-type elastic member 53a is fixed as shown in FIG. 12a and the left side disk 511 shown in FIG. 12b. The right side disc 512) to which the foil type elastic member 53b is fixed, and the foil type elastic member 53a fixed to the left side disc 511 is mirror-symmetrical with the foil type elastic member 53b fixed to the right side disc 512. There may be a plurality of foil-type elastic members on each of the side plates (four shown in the drawing), and are evenly distributed along the inner end faces of the side plates.

通過在側盤51與中盤52之間設置箔型彈性件53，在中盤52的左、右端面設置規則形狀的槽式花紋（521和522），且使左端面的槽式花紋521與右端面的槽式花紋522形成鏡像對稱，從而得到了既具有槽式動壓氣體止推軸承的高極限轉速的剛性特徵、又具有箔片式動壓氣體止推軸承的高抗衝擊能力和載荷能力的柔性特徵的混合式動壓氣體止推軸承；因爲箔型彈性件53與中盤52間形成了楔形空間，當中盤52轉動時，氣體因其自身的粘性作用被帶動並被壓縮到楔形空間內，從而可使軸向動壓力得到顯著增强，相對於現有的單純箔片式動壓氣體止推軸承，可具有在相同載荷下成倍增加的極限轉速；同時，由於增加了箔型彈性件53，在其彈性作用下，還可使軸承的載荷能力、抗衝擊能力和抑制軸渦動的能力顯著提高，相對於現有的單純槽式動壓氣體止推軸承，可具有在相同轉速下成倍增加的抗衝擊能力和載荷能力。By providing the foil-type elastic member 53 between the side disk 51 and the intermediate disk 52, regular groove patterns (521 and 522) are provided on the left and right end faces of the intermediate disk 52, and the groove pattern 521 and the right end face of the left end face are provided. The trough pattern 522 is mirror-symmetrical, thereby obtaining a high-limit rotational speed characteristic of the slot type dynamic pressure gas thrust bearing, and high impact resistance and load capacity of the foil type dynamic pressure gas thrust bearing. A flexible dynamic pressure gas thrust bearing; since the foil-shaped elastic member 53 forms a wedge-shaped space with the intermediate plate 52, when the disk 52 rotates, the gas is driven by its own viscous action and compressed into the wedge-shaped space. Therefore, the axial dynamic pressure can be significantly enhanced, and the conventional simple foil-type dynamic pressure gas thrust bearing can have a limit rotation speed which is multiplied under the same load; meanwhile, since the foil-type elastic member 53 is added, Under the action of its elasticity, the load capacity, impact resistance and the ability to suppress the eddy of the bearing can be significantly improved. Compared with the existing simple trough dynamic pressure gas thrust bearing, it can have the phase. Double the impact resistance and load capacity at the same speed.

結合圖10和圖13、圖14所示：所述的箔型彈性件53由波箔531和平箔532組成，所述波箔531的弧形凸起5311的頂端與平箔532相貼合，所述波箔531的波拱間過渡底邊5312與對應側盤51的內端面相貼合。As shown in FIG. 10 and FIG. 13 and FIG. 14 , the foil-shaped elastic member 53 is composed of a wave foil 531 and a flat foil 532 , and the top end of the curved protrusion 5311 of the wave foil 531 is in contact with the flat foil 532 . The inter-wave transition bottom edge 5312 of the wave foil 531 is in contact with the inner end surface of the corresponding side disk 51.

爲進一步降低高速運轉的中盤52對箔型彈性件53的磨損，以延長軸承的使用壽命，最好在與中盤52相配合的箔型彈性件53的配合面上設置耐磨塗層（圖中未示出）。實施例2In order to further reduce the wear of the foil-type elastic member 53 of the intermediate plate 52 at a high speed to extend the service life of the bearing, it is preferable to provide a wear-resistant coating on the mating surface of the foil-type elastic member 53 that cooperates with the intermediate plate 52 (in the figure) Not shown). Example 2

結合圖15a、15b、16至20所示可見，本實施例提供的一種混合式動壓氣體止推軸承與實施例1的區別僅在於：As can be seen in conjunction with Figures 15a, 15b, 16 to 20, a hybrid dynamic pressure gas thrust bearing provided by this embodiment differs from Embodiment 1 only in that:

在所述中盤52的外圓周面也設有槽式花紋523，且外圓周面的槽式花紋523的形狀與左、右端面的槽式花紋（521和522）的形狀相同（本實施例中均爲葉輪形狀），以及外圓周面的槽式花紋523的軸向輪廓線與左、右端面的槽式花紋（521和522）的徑向輪廓線均形成一一對應並相互交接；即：A groove pattern 523 is also provided on the outer circumferential surface of the intermediate disk 52, and the shape of the groove pattern 523 of the outer circumferential surface is the same as that of the groove patterns (521 and 522) of the left and right end faces (in this embodiment) The axial contour of the groove pattern 523 of the outer circumferential surface and the radial contour lines of the groove patterns (521 and 522) of the left and right end faces are in one-to-one correspondence with each other and are mutually connected;

外圓周面的槽式花紋523中的軸向高位線5231與左端面的槽式花紋521中的徑向高位線5211均相對應、並在端面圓周倒角前相互交接；外圓周面的槽式花紋523中的軸向中位線5232與左端面的槽式花紋521中的徑向中位線5212均相對應、並在端面圓周倒角前相互交接；外圓周面的槽式花紋523中的軸向低位線5233與左端面的槽式花紋521中的徑向低位線5213均相對應、並在端面圓周倒角前相互交接（如圖18所示）；The axially high bit line 5231 in the groove pattern 523 of the outer circumferential surface corresponds to the radial high line line 5211 in the groove pattern 521 of the left end surface, and is mutually overlapped before the end face is chamfered; the groove of the outer circumferential surface The axial center line 5232 in the pattern 523 corresponds to the radial center line 5212 in the groove pattern 521 of the left end surface, and is mutually overlapped before the end surface is chamfered; the groove pattern 523 in the outer circumference surface The axial low bit line 5233 corresponds to the radially lower bit line 5213 in the groove pattern 521 of the left end face, and overlaps each other before the end face is chamfered (as shown in FIG. 18);

外圓周面的槽式花紋523中的軸向高位線5231與右端面的槽式花紋522中的徑向高位線5221均相對應、並在端面圓周倒角前相互交接；外圓周面的槽式花紋523中的軸向中位線5232與右端面的槽式花紋522中的徑向中位線5222均相對應、並在端面圓周倒角前相互交接；外圓周面的槽式花紋523中的軸向低位線5233與右端面的槽式花紋522中的徑向低位線5223均相對應、並在端面圓周倒角前相互交接（如圖20所示）。The axially high bit line 5231 in the groove pattern 523 of the outer circumferential surface corresponds to the radial high line 5221 in the groove pattern 522 of the right end face, and is mutually overlapped before the end face is chamfered; the groove of the outer circumferential surface The axial center line 5232 in the pattern 523 corresponds to the radial center line 5222 in the groove pattern 522 of the right end surface, and is mutually overlapped before the end surface is chamfered; the groove pattern 523 in the outer circumference surface The axially lower bit line 5233 corresponds to the radially lower bit line 5223 in the groove pattern 522 of the right end face, and is mutually overlapped before the end face is chamfered (as shown in FIG. 20).

當在所述中盤52的外圓周面也設有槽式花紋，且使外圓周面的槽式花紋523的形狀與左、右端面的槽式花紋（521和522）的形狀相同，以及外圓周面的槽式花紋523的軸向輪廓線與左、右端面的槽式花紋（521和522）的徑向輪廓線均形成一一對應並相互交接時，可使內盤兩端面的槽式花紋（521和522）所産生的增壓氣體從軸心沿徑向不斷地往外圓周面的槽式花紋523形成的凹槽通道裏輸送，以致形成更强支撑高速運轉軸承所需的氣膜，而氣膜即作爲動壓氣體止推軸承的潤滑劑，因而可進一步確保所述的混合式動壓氣體止推軸承在氣浮狀態下的高速穩定運轉，爲實現鼓風機的高極限轉速提供進一步保證。A groove pattern is also provided on the outer circumferential surface of the intermediate disk 52, and the shape of the groove pattern 523 of the outer circumferential surface is the same as that of the groove patterns (521 and 522) of the left and right end faces, and the outer circumference. When the axial contour of the groove pattern 523 and the radial contour lines of the groove patterns (521 and 522) of the left and right end faces are in one-to-one correspondence and are mutually connected, the groove pattern on both end faces of the inner disk can be obtained ( The pressurized gas generated by 521 and 522) is transported from the axial direction of the shaft to the groove passage formed by the groove pattern 523 of the outer circumferential surface, so as to form a gas film required for supporting the high-speed running bearing, and the gas The membrane acts as a lubricant for the dynamic pressure gas thrust bearing, thereby further ensuring high-speed stable operation of the hybrid dynamic pressure gas thrust bearing in an air-floating state, further providing a guarantee for achieving a high limit rotation speed of the air blower.

在側盤51的內端面上設有用於固定箔型彈性件53的卡槽513（如圖16所示）。A card slot 513 (shown in Fig. 16) for fixing the foil-type elastic member 53 is provided on the inner end surface of the side disk 51.

所述的箔型彈性件53與中盤52的配合間隙優選爲0.003～0.008mm，以進一步確保軸承高速運轉的可靠性和穩定性。The fitting clearance of the foil-type elastic member 53 and the intermediate disk 52 is preferably 0.003 to 0.008 mm to further ensure the reliability and stability of the high-speed operation of the bearing.

爲了更好地滿足高速運轉的性能要求，所述的箔型彈性件53優選經過表面熱處理。In order to better meet the performance requirements of high speed operation, the foil-type elastic member 53 is preferably subjected to surface heat treatment.

另外需要說明的是：本發明所述的箔型彈性件53的組成結構不限於上述實施例中所述，還可以採用波箔和平箔組成，但所述波箔的波拱間過渡底邊與平箔相貼合；或者，直接採用兩個平箔組成，其中靠近側盤端面的平箔具有若干鼓泡，所述鼓泡的弧形凸起頂端與另一個平箔相貼合；或採用其它的現有結構。It should be noted that the composition of the foil-type elastic member 53 of the present invention is not limited to that described in the above embodiments, and may be composed of a wave foil and a flat foil, but the transition edge between the wave arches of the wave foil is Flat foil is attached; or, directly composed of two flat foils, wherein the flat foil near the end surface of the side disc has a plurality of bubbling, and the curved convex top end of the bubbling is attached to another flat foil; or Other existing structures.

經測試，本發明提供的軸承在氣浮狀態下能達到100,000～450,000rpm的極限轉速，因此針對相同功率要求，本發明可使鼓風機的體積顯著减小實現微型化，對促進微型化高新技術的發展具有重要價值。The bearing provided by the invention can reach the limit rotation speed of 100,000-450,000 rpm in the air floating state, so the invention can significantly reduce the volume of the air blower to achieve miniaturization for the same power requirement, and promote the miniaturization of high-tech. Development is of great value.

最後有必要在此指出的是：以上內容只用於對本發明所述技術方案做進一步詳細說明，不能理解爲對本發明保護範圍的限制，本領域的技術人員根據本發明的上述內容作出的一些非本質的改進和調整均屬本發明的保護範圍。Finally, it is necessary to point out that the above content is only used to further explain the technical solutions of the present invention, and is not to be construed as limiting the scope of the present invention. Some of the above-mentioned contents of the present invention are made by those skilled in the art. Intrinsic improvements and adjustments are within the scope of the invention.

1‧‧‧葉輪
11‧‧‧葉輪殼
2‧‧‧電機
21‧‧‧轉子
22‧‧‧定子
23‧‧‧轉軸
231‧‧‧空腔
24‧‧‧端蓋
25‧‧‧殼體
251‧‧‧外筒
252‧‧‧內筒
253‧‧‧進氣孔
254‧‧‧散熱排氣孔
3‧‧‧轉動連接件
31‧‧‧側部
32‧‧‧導氣葉片
4‧‧‧槽式動壓氣體徑向軸承
41‧‧‧軸承外套
42‧‧‧軸承內套
43‧‧‧槽式花紋
431‧‧‧外圓周面的槽式花紋
4311‧‧‧軸向高位線
4312‧‧‧軸向中位線
4313‧‧‧軸向低位線
432‧‧‧左端面的槽式花紋
4321‧‧‧徑向高位線
4322‧‧‧徑向中位線
4323‧‧‧徑向低位線
433‧‧‧右端面的槽式花紋
4331‧‧‧徑向高位線
4332‧‧‧徑向中位線
4333‧‧‧徑向低位線
44‧‧‧止環
5‧‧‧混合式動壓氣體止推軸承
51‧‧‧側盤
511‧‧‧左側盤
512‧‧‧右側盤
513‧‧‧卡槽
52‧‧‧中盤
521‧‧‧左端面的槽式花紋
5211‧‧‧徑向高位線
5212‧‧‧徑向中位線
5213‧‧‧徑向低位線
522‧‧‧右端面的槽式花紋
5221‧‧‧徑向高位線
5222‧‧‧徑向中位線
5223‧‧‧徑向低位線
523‧‧‧外圓周面的槽式花紋
5231‧‧‧軸向高位線
5232‧‧‧軸向中位線
5233‧‧‧軸向低位線
53、53a、53b‧‧‧箔型彈性件
531‧‧‧波箔
5311‧‧‧弧形凸起
5312‧‧‧波拱間過渡底邊
532‧‧‧平箔
54‧‧‧中盤調整環
6、7、8‧‧‧螺栓
61‧‧‧空腔1‧‧‧ Impeller
11‧‧‧The impeller shell
2‧‧‧Motor
21‧‧‧Rotor
22‧‧‧ Stator
23‧‧‧ shaft
231‧‧‧ Cavity
24‧‧‧End cover
25‧‧‧shell
251‧‧‧Outer tube
252‧‧‧ inner tube
253‧‧‧Air intake
254‧‧‧Heat vents
3‧‧‧Rotating connectors
31‧‧‧ side
32‧‧‧air guide vanes
4‧‧‧ trough dynamic pressure gas radial bearing
41‧‧‧ bearing jacket
42‧‧‧ bearing inner sleeve
43‧‧‧ trough pattern
431‧‧‧Slot pattern on the outer circumferential surface
4311‧‧‧ axial high line
4312‧‧‧ axial center line
4313‧‧‧ axial low line
432‧‧‧ trough pattern on the left end
4321‧‧‧radial high line
4322‧‧‧radial median line
4323‧‧‧radial low bit line
433‧‧‧ trough pattern on the right end
4331‧‧‧ radial high position line
4332‧‧‧radial center line
4333‧‧‧radial low line
44‧‧‧End ring
5‧‧‧Combined dynamic pressure gas thrust bearing
51‧‧‧ side disk
511‧‧‧left disk
512‧‧‧right disk
513‧‧‧ card slot
52‧‧‧ mid-disc
521‧‧‧ trough pattern on the left end
5211‧‧‧radial high line
5212‧‧‧radial center line
5213‧‧‧radial low line
522‧‧‧Slot pattern on the right end face
5221‧‧‧radial high line
5222‧‧‧radial center line
5223‧‧‧radial low line
523‧‧‧Slot pattern on the outer circumferential surface
5231‧‧‧ axial high line
5232‧‧‧Axial center line
5233‧‧‧Axis low line
53, 53a, 53b‧‧‧Foil type elastic parts
531‧‧‧Foil foil
5311‧‧‧Arc-shaped bulge
5312‧‧‧Transition hem between the arches
532‧‧‧Flat foil
54‧‧‧ mid-plate adjustment ring
6, 7, 8‧ ‧ bolts
61‧‧‧ cavity

圖1是實施例1提供的一種超高速鼓風機的前視立體結構示意圖；圖2是實施例1提供的超高速鼓風機的正視結構示意圖；圖3是圖2的A-A向視圖；圖4是實施例1提供的轉動連接件的立體結構示意圖；圖5是實施例1提供的殼體的立體結構示意圖；圖6是實施例1提供的槽式動壓氣體徑向軸承的局部分割的左視立體結構示意圖；圖7是圖6中的B局部放大圖；圖8是實施例1提供的槽式動壓氣體徑向軸承的局部分割的右視立體結構示意圖；圖9是圖8中的C局部放大圖；圖10是實施例1提供的混合式動壓氣體止推軸承的剖面結構示意圖；圖11a是實施例1中所述中盤的左視圖；圖11b是實施例1中所述中盤的右視圖；圖12a是實施例1中所述的固定有箔型彈性件的左側盤的右視圖；圖12b是實施例1中所述的固定有箔型彈性件的右側盤的左視圖；圖13是實施例1提供的箔型彈性件的截面結構示意圖；圖14是實施例1提供的箔型彈性件的立體結構示意圖；圖15a是實施例2提供的一種混合式動壓氣體止推軸承的左視立體結構示意圖；圖15b是實施例2提供的混合式動壓氣體止推軸承的右視立體結構示意圖；圖16是實施例2提供的混合式動壓氣體止推軸承的局部分割立體結構示意圖；圖17是實施例2中所述中盤的左視立體結構示意圖；圖18是圖17中的D局部放大圖；圖19是實施例2中所述中盤的右視立體結構示意圖；圖20是圖19中的E局部放大圖。1 is a front perspective view of a super high-speed air blower provided in the first embodiment; FIG. 2 is a front view of the super high speed air blower provided in the first embodiment; FIG. 3 is a view taken along line AA of FIG. 1 is a schematic perspective view of a rotary joint provided by FIG. 5; FIG. 5 is a perspective structural view of the housing provided in the first embodiment; FIG. 6 is a partially divided left-view solid structure of the slot type dynamic pressure gas radial bearing provided in the first embodiment. Figure 7 is a partial enlarged view of the portion B of Figure 6; Figure 8 is a schematic view of a partially divided right perspective view of the slot type dynamic pressure gas radial bearing provided in Embodiment 1; Figure 9 is a partial enlarged view of C in Figure 8 Figure 10 is a cross-sectional structural view of the hybrid dynamic pressure gas thrust bearing provided in Embodiment 1. Figure 11a is a left side view of the center disk described in Embodiment 1; Figure 11b is a right side view of the center disk described in Embodiment 1. Figure 12a is a right side view of the left side disk to which the foil-type elastic member is fixed as described in Embodiment 1; Figure 12b is a left side view of the right side disk to which the foil-type elastic member is fixed as described in Embodiment 1; The foil-type elastic member provided in Embodiment 1 Figure 14 is a schematic perspective view of a three-dimensional structure of a hybrid dynamic pressure gas thrust bearing provided in Embodiment 2; Figure 15b is a schematic view of a three-dimensional structure of a hybrid dynamic pressure gas thrust bearing provided in Embodiment 2; 2 is a schematic view of a right-hand perspective structure of a hybrid dynamic pressure gas thrust bearing provided; FIG. 16 is a partially divided perspective structural view of the hybrid dynamic pressure gas thrust bearing provided in Embodiment 2; FIG. 17 is a description of Embodiment 2 FIG. 18 is a partially enlarged perspective view of the middle disk of the embodiment 2; FIG. 20 is a partial enlarged view of the E of FIG.

1‧‧‧葉輪 1‧‧‧ Impeller

11‧‧‧葉輪殼 11‧‧‧The impeller shell

2‧‧‧電機 2‧‧‧Motor

21‧‧‧轉子 21‧‧‧Rotor

22‧‧‧定子 22‧‧‧ Stator

23‧‧‧轉軸 23‧‧‧ shaft

231‧‧‧空腔 231‧‧‧ Cavity

24‧‧‧端蓋 24‧‧‧End cover

25‧‧‧殼體 25‧‧‧shell

251‧‧‧外筒 251‧‧‧Outer tube

252‧‧‧內筒 252‧‧‧ inner tube

253‧‧‧進氣孔 253‧‧‧Air intake

254‧‧‧散熱排氣孔 254‧‧‧Heat vents

3‧‧‧轉動連接件 3‧‧‧Rotating connectors

31‧‧‧側部 31‧‧‧ side

32‧‧‧導氣葉片 32‧‧‧air guide vanes

4‧‧‧槽式動壓氣體徑向軸承 4‧‧‧ trough dynamic pressure gas radial bearing

41‧‧‧軸承外套 41‧‧‧ bearing jacket

42‧‧‧軸承內套 42‧‧‧ bearing inner sleeve

44‧‧‧止環 44‧‧‧End ring

5‧‧‧混合式動壓氣體止推軸承 5‧‧‧Combined dynamic pressure gas thrust bearing

51‧‧‧側盤 51‧‧‧ side disk

52‧‧‧中盤 52‧‧‧ mid-disc

53‧‧‧箔型彈性件 53‧‧‧Foil type elastic parts

54‧‧‧中盤調整環 54‧‧‧ mid-plate adjustment ring

6、7、8‧‧‧螺栓 6, 7, 8‧ ‧ bolts

61‧‧‧空腔 61‧‧‧ cavity

Claims

一種超高速鼓風機，其包括葉輪、電機、轉動連接件和槽式動壓氣體徑向軸承，所述電機包括轉子、定子、轉軸、端蓋和殼體，所述殼體是由內、外筒形成兩個空腔的環形圓筒狀結構，所述轉動連接件是具有一個空腔的圓筒狀結構，所述轉動連接件套設在靠近葉輪的轉軸上、並與葉輪和轉軸端部分別相契合連接，其側部位於由殼體的外筒與內筒所形成的空腔內；所述槽式動壓氣體徑向軸承和轉軸均位於殼體的內筒腔內，且所述槽式動壓氣體徑向軸承套設在轉軸上；所述定子固定在殼體的內筒外壁上，所述轉子固定在轉動連接件的側部內壁上。An ultra-high speed blower comprising an impeller, a motor, a rotary joint and a slotted dynamic gas radial bearing, the motor comprising a rotor, a stator, a rotating shaft, an end cover and a casing, the casing being an inner and outer cylinder Forming an annular cylindrical structure of two cavities, the rotating connecting member is a cylindrical structure having a cavity, the rotating connecting member is sleeved on a rotating shaft close to the impeller, and is respectively opposite to the end of the impeller and the rotating shaft a side joint is located in a cavity formed by the outer cylinder and the inner cylinder of the casing; the slotted dynamic gas radial bearing and the rotating shaft are both located in the inner cylinder cavity of the casing, and the groove The dynamic pressure gas radial bearing is sleeved on the rotating shaft; the stator is fixed on the outer wall of the inner cylinder of the casing, and the rotor is fixed on the inner wall of the side of the rotating connecting member.

如請求項1所述的超高速鼓風機，其中在位於轉軸與槽式動壓氣體徑向軸承的端部所形成的氣流通道的上方的轉動連接件的側部開設有若干導氣葉片。The ultrahigh-speed air blower according to claim 1, wherein a plurality of air guide vanes are provided at a side of the rotary joint located above the air flow passage formed at the end of the rotary shaft and the trough dynamic gas radial bearing.

如請求項2所述的超高速鼓風機，其中在殼體的外筒周側開設有若干進氣孔和若干散熱排氣孔。The ultrahigh-speed air blower according to claim 2, wherein a plurality of air intake holes and a plurality of heat dissipation vent holes are formed in a peripheral side of the outer cylinder of the casing.

如請求項1所述的超高速鼓風機，其中述槽式動壓氣體徑向軸承包括軸承外套和軸承內套，所述軸承內套的外圓周面上和兩端面上均具有規則形狀的槽式花紋。The ultrahigh-speed air blower according to claim 1, wherein the slot type dynamic pressure gas radial bearing comprises a bearing outer casing and a bearing inner sleeve, and the outer circumferential surface and both end surfaces of the inner bearing sleeve have a regular shape groove type. Pattern.

如請求項4所述的超高速鼓風機，其中所述軸承內套的一端面上的槽式花紋與另一端面上的槽式花紋形成鏡像對稱，以及外圓周面上的槽式花紋的軸向輪廓線與兩端面上的槽式花紋的徑向輪廓線均形成一一對應並相互交接。The ultrahigh-speed air blower according to claim 4, wherein the groove pattern on one end surface of the bearing inner sleeve is mirror-symmetrical with the groove pattern on the other end surface, and the axial direction of the groove pattern on the outer circumferential surface The contour line forms a one-to-one correspondence with the radial contour lines of the groove patterns on both end faces and intersects each other.

如請求項5所述的超高速鼓風機，其中所述軸承內套的外圓周面上的槽式花紋中的軸向高位線與兩端面上的槽式花紋中的徑向高位線均相對應、並在端面圓周倒角前相互交接；外圓周面上的槽式花紋中的軸向中位線與兩端面上的槽式花紋中的徑向中位線均相對應、並在端面圓周倒角前相互交接；外圓周面上的槽式花紋中的軸向低位線與兩端面上的槽式花紋中的徑向低位線均相對應、並在端面圓周倒角前相互交接。The ultrahigh-speed air blower according to claim 5, wherein an axial high line in the groove pattern on the outer circumferential surface of the bearing inner sleeve corresponds to a radial high line in the groove pattern on both end faces, And intersecting each other before the circumferential chamfer of the end face; the axial median line in the groove pattern on the outer circumferential surface corresponds to the radial median line in the groove pattern on both end faces, and is chamfered at the end face circumference The front sides are mutually interconnected; the axial lower line in the groove pattern on the outer circumferential surface corresponds to the radially lower line in the groove pattern on both end faces, and is mutually overlapped before the end face is chamfered.

如請求項1至6中任一項所述的超高速鼓風機，其中所述的超高速鼓風機還包括一個混合式動壓氣體止推軸承，所述的混合式動壓氣體止推軸承包括兩個側盤以及夾設在兩個側盤之間的中盤，在每個側盤與中盤之間均設有箔型彈性件，並且，所述混合式動壓氣體止推軸承位於殼體與端蓋形成的腔體內，並套設在轉軸上。The ultra high speed blower according to any one of claims 1 to 6, wherein said super high speed blower further comprises a hybrid dynamic pressure gas thrust bearing, said hybrid dynamic pressure gas thrust bearing comprising two a side plate and a middle plate sandwiched between the two side plates, a foil-type elastic member is disposed between each of the side plates and the middle plate, and the hybrid dynamic pressure gas thrust bearing is located at the housing and the end cover The cavity is formed and sleeved on the rotating shaft.

如請求項7所述的超高速鼓風機，其中所述中盤的兩端面上均設有規則形狀的槽式花紋，且一端面上的槽式花紋與另一端面上的槽式花紋形成鏡像對稱。The ultra-high-speed air blower according to claim 7, wherein a groove pattern of a regular shape is provided on both end faces of the intermediate plate, and the groove pattern on one end surface is mirror-symmetrical with the groove pattern on the other end surface.

如請求項8所述的超高速鼓風機，其中在所述中盤的外圓周面上也設有槽式花紋，且外圓周面上的槽式花紋的形狀與兩端面上的槽式花紋的形狀相同，以及外圓周面上的槽式花紋的軸向輪廓線與兩端面上的槽式花紋的徑向輪廓線均形成一一對應並相互交接。The ultrahigh-speed air blower according to claim 8, wherein the outer circumferential surface of the intermediate disk is also provided with a groove pattern, and the groove pattern on the outer circumferential surface has the same shape as the groove pattern on both end faces. And the axial contour line of the groove pattern on the outer circumferential surface and the radial contour line of the groove pattern on both end faces form a one-to-one correspondence and mutually overlap.

如請求項9所述的超高速鼓風機，其中中盤的外圓周面上的槽式花紋中的軸向高位線與兩端面上的槽式花紋中的徑向高位線均相對應、並在端面圓周倒角前相互交接；外圓周面上的槽式花紋中的軸向中位線與兩端面上的槽式花紋中的徑向中位線均相對應、並在端面圓周倒角前相互交接；外圓周面上的槽式花紋中的軸向低位線與兩端面上的槽式花紋中的徑向低位線均相對應、並在端面圓周倒角前相互交接。The ultrahigh-speed air blower according to claim 9, wherein the axial high line in the groove pattern on the outer circumferential surface of the middle disk corresponds to the radial high line in the groove pattern on both end faces, and is on the end face circumference The chamfers are mutually overlapped; the axial center line in the groove pattern on the outer circumferential surface corresponds to the radial center line in the groove pattern on both end faces, and is mutually overlapped before the end face is chamfered; The axially lower bit line in the groove pattern on the outer circumferential surface corresponds to the radially lower line in the groove pattern on both end faces, and is mutually overlapped before the end face is chamfered.

如請求項7所述的超高速鼓風機，其中固定在一個側盤上的箔型彈性件與固定在另一個側盤上的箔型彈性件形成鏡像對稱。The ultrahigh-speed air blower according to claim 7, wherein the foil-type elastic member fixed to one side disk is mirror-symmetrical to the foil-type elastic member fixed to the other side disk.

如請求項7所述的超高速鼓風機，其中所述的箔型彈性件由波箔和平箔組成，所述波箔的弧形凸起頂端與平箔相貼合，所述波箔的波拱間過渡底邊與對應側盤的內端面相貼合。The ultrahigh-speed air blower according to claim 7, wherein the foil-shaped elastic member is composed of a wave foil and a flat foil, and the curved convex top end of the wave foil is attached to the flat foil, and the wave foil is waved. The transition bottom edge is in contact with the inner end surface of the corresponding side disc.

如請求項7所述的超高速鼓風機，其中所述的箔型彈性件由波箔和平箔組成，所述波箔的波拱間過渡底邊與平箔相貼合。The ultrahigh-speed air blower according to claim 7, wherein the foil-type elastic member is composed of a wave foil and a flat foil, and a transition edge of the wave arch of the wave foil is attached to the flat foil.

如請求項7所述的超高速鼓風機，其中所述的箔型彈性件由兩個平箔組成，其中靠近側盤端面的平箔具有若干鼓泡，所述鼓泡的弧形凸起頂端與另一個平箔相貼合。The ultrahigh-speed air blower of claim 7, wherein the foil-type elastic member is composed of two flat foils, wherein the flat foil adjacent to the end surface of the side disk has a plurality of bubbling, and the arcuate convex top end of the bubbling Another flat foil fits.