CN1632331A - Hybrid spiral groove dynamic and static pressure gas composite thrust bearing - Google Patents

Hybrid spiral groove dynamic and static pressure gas composite thrust bearing Download PDF

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Publication number
CN1632331A
CN1632331A CN200510009632.5A CN200510009632A CN1632331A CN 1632331 A CN1632331 A CN 1632331A CN 200510009632 A CN200510009632 A CN 200510009632A CN 1632331 A CN1632331 A CN 1632331A
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China
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static pressure
thrust bearing
air flotation
dynamic
supply point
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CN200510009632.5A
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Chinese (zh)
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谭久彬
姚绍明
邱丽荣
马洪文
邹丽敏
金鹏
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Harbin Institute of Technology Shenzhen
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Harbin Institute of Technology Shenzhen
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Priority to CN200510009632.5A priority Critical patent/CN1632331A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • F16C17/045—Sliding-contact bearings for exclusively rotary movement for axial load only with grooves in the bearing surface to generate hydrodynamic pressure, e.g. spiral groove thrust bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
    • F16C32/0614—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
    • F16C32/0622—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings via nozzles, restrictors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
    • F16C32/0692—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for axial load only

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

The invention relates to a mixed type helical groove dynamical and static pressure gas composite thrust bearing, which is high speed, high rigidity, big load and ultraprecise. On the working surface of the thrust bearing, static pressure air-floating air feed point distributed at two sides of the circle respectively opens herringbone dynamical pressure groove. The bearing capacity of the bearing is improved more than 30% compared to the traditional static pressure air-floating bearing in the circumstance of not adding the gas consumption of the air-floating bearing and the bearing rigidity is improved more than 15% compared to the static pressure air-floating bearing.

Description

混合式螺旋槽动静压气体复合止推轴承Hybrid spiral groove dynamic and static pressure gas composite thrust bearing

技术领域technical field

本发明涉及一种动静压气体复合止推轴承，尤其是超精密、超高速气体止推轴承。The invention relates to a dynamic and static pressure gas compound thrust bearing, in particular to an ultra-precision and ultra-high-speed gas thrust bearing.

背景技术Background technique

目前，工程中使用的静压气体止推轴承，如：高速静压气浮电主轴以及其它用途的高速静压气体轴承，仅仅利用静压气浮来承受载荷并提供刚度，在实际应用当中常常遇到承载能力低、刚度小、抗干扰能力差的问题，工程中使用的静压气体止推轴承没有充分利用高转速或线速度的动压效应所能提供的承载能力和刚度(《机械设计手册》第二卷第七篇—气体润滑轴承.2002年第四版，化学工业出版社.；《机械设计手册》第四卷第四十篇第九章—气体轴承.2003年第二版，机械工业出版社.)。At present, the static pressure gas thrust bearings used in engineering, such as high-speed static pressure air-floating electric spindles and high-speed static pressure gas bearings for other purposes, only use static pressure air flotation to bear the load and provide stiffness, which are often used in practical applications. Encountered the problems of low load capacity, low stiffness, and poor anti-interference ability, the hydrostatic gas thrust bearings used in engineering did not make full use of the load capacity and stiffness provided by the dynamic pressure effect of high speed or linear velocity ("Mechanical Design "Handbook", Volume 2, Chapter 7 - Gas Lubricated Bearings. Fourth Edition in 2002, Chemical Industry Press. Mechanical Industry Press.).

发明内容Contents of the invention

本发明的目的在于克服上述技术中存在的不足之处，提供一种高刚度、高承载能力的混合式螺旋槽动静压气体复合止推轴承。The object of the present invention is to overcome the disadvantages of the above-mentioned technologies, and provide a hybrid spiral groove dynamic and static pressure gas composite thrust bearing with high rigidity and high load capacity.

为达到上述目的，本发明采用的技术方案是在止推轴承工作面上，静压气浮供气点分布圆两侧分别开有螺旋状动压沟槽。In order to achieve the above purpose, the technical solution adopted by the present invention is that on the working surface of the thrust bearing, spiral dynamic pressure grooves are respectively opened on both sides of the distribution circle of the static pressure air flotation air supply point.

所述的静压气浮供气点分布圆两侧的螺旋状动压沟槽相通或不通。The spiral dynamic pressure grooves on both sides of the distribution circle of the static pressure air flotation air supply point are connected or not connected.

所述的静压气浮供气点分布圆两侧的螺旋状动压沟槽外侧带有封气边或不带有封气边。The outer sides of the spiral dynamic pressure grooves on both sides of the distribution circle of the static pressure air flotation air supply points have or do not have air sealing edges.

所述的止推轴承工作面上沿静压气浮供气点分布圆的圆周方向开有或不开有多个与两侧螺旋状动压沟槽相通的均压槽。On the working surface of the thrust bearing, along the circumferential direction of the static pressure air flotation gas supply point distribution circle, there are or not a plurality of pressure equalizing grooves communicating with the helical dynamic pressure grooves on both sides.

所述的静压气浮供气点是单排布置或双排布置。The static pressure air flotation air supply points are arranged in a single row or in a double row.

所述的静压气浮供气点是孔或缝隙或是用带有毛细孔的材料填充的孔。The static pressure air flotation air supply point is a hole or a gap or a hole filled with a material with capillary pores.

所述的静压气浮供气点与动压沟槽在同一个工作面上或在与开有动压沟槽的工作面相对应的工作面上。The static pressure air flotation gas supply point is on the same working surface as the dynamic pressure groove or on the working surface corresponding to the working surface with the dynamic pressure groove.

所述的双排布置的静压气浮供气点的螺旋槽动静压复合气体止推轴承，静压气浮供气点两侧的螺旋状动压沟槽方向相同或相反。The spiral groove dynamic and static pressure composite gas thrust bearings of the static pressure air flotation gas supply point arranged in double rows have the same or opposite directions of the spiral dynamic pressure grooves on both sides of the static pressure air flotation gas supply point.

所述的双排布置的静压气浮供气点的螺旋槽动静压复合气体止推轴承，两排静压气浮供气点的螺旋状动压沟槽相通或不通。The spiral groove dynamic and static pressure composite gas thrust bearings of the static pressure air flotation gas supply points arranged in double rows, and the spiral dynamic pressure grooves of the static pressure air flotation gas supply points in the two rows are connected or not connected.

本发明的优点Advantages of the invention

(1)轴承承载能力比传统静压气浮止推轴承提高30％以上。(1) The bearing capacity of the bearing is increased by more than 30% compared with the traditional static pressure air bearing.

(2)轴承刚度比传统静压气浮止推轴承提高15％以上。(2) The bearing stiffness is increased by more than 15% compared with the traditional static pressure air bearing.

附图说明Description of drawings

附图1是在止推轴承工作面1上静压气浮供气点3分布圆两侧分别开有不相通的螺旋状动压沟槽2的示意图。Accompanying drawing 1 is a schematic diagram of the two sides of the distribution circle of the static pressure air flotation air supply point 3 on the thrust bearing working surface 1 respectively provided with non-communicating spiral dynamic pressure grooves 2 .

附图2是在止推轴承工作面6上静压气浮供气点5分布圆两侧分别开有相通的螺旋状动压沟槽4的示意图。Accompanying drawing 2 is the schematic diagram that there are connected spiral dynamic pressure grooves 4 on both sides of the distribution circle of the static pressure air flotation air supply point 5 on the thrust bearing working surface 6 .

附图3是在止推轴承工作面10上静压气浮供气点9分布圆两侧分别开有不相通的螺旋状动压沟槽7，螺旋状动压沟槽7外侧带有封气边8的示意图。Accompanying drawing 3 is that on the thrust bearing working surface 10, the static pressure air flotation air supply point 9 is distributed on both sides of the circle, and there are respectively uninterconnected spiral dynamic pressure grooves 7, and the outer sides of the spiral dynamic pressure grooves 7 are provided with air seals. Schematic diagram of edge 8.

附图4是在止推轴承工作面14上静压气浮供气点13分布圆两侧分别开有相通的螺旋状动压沟槽11，螺旋状动压沟槽11外侧带有封气边12的示意图。Accompanying drawing 4 shows that on the thrust bearing working surface 14, there are connected spiral dynamic pressure grooves 11 on both sides of the distribution circle of the static pressure air flotation gas supply point 13, and the outer side of the spiral dynamic pressure groove 11 has an air sealing edge 12. Schematic.

附图5是止推轴承工作面18上沿静压气浮供气点17分布圆的圆周方向开有多个与两侧螺旋状动压沟槽16相通的均压槽15，螺旋状动压沟槽16外侧不带有封气边的示意图。Accompanying drawing 5 is that on the thrust bearing working surface 18, there are a plurality of pressure equalizing grooves 15 communicating with the helical dynamic pressure grooves 16 on both sides along the circumferential direction of the distribution circle of the static pressure air flotation gas supply point 17, and the helical dynamic pressure A schematic diagram of the outside of the groove 16 without an air sealing edge.

附图6是止推轴承工作面23上沿静压气浮供气点22分布圆的圆周方向开有多个与两侧螺旋状动压沟槽20相通的均压槽19，螺旋状动压沟槽20外侧带有封气边21的示意图。Accompanying drawing 6 is that on the thrust bearing working surface 23, there are a plurality of pressure equalizing grooves 19 communicating with the helical dynamic pressure grooves 20 on both sides along the circumferential direction of the distribution circle of the static pressure air flotation gas supply point 22, and the helical dynamic pressure A schematic diagram of the sealing edge 21 on the outside of the groove 20 .

附图7是止推轴承工作面27上静压气浮供气点26双排布置，静压气浮供气点26两侧的螺旋状动压沟槽25方向相同，两排静压气浮供气点26的螺旋槽25不通，螺旋状动压沟槽25外侧带有封气边24的示意图。Accompanying drawing 7 is the static pressure air flotation air supply point 26 double-row arrangement on the thrust bearing working surface 27, the spiral dynamic pressure grooves 25 on both sides of the static pressure air flotation air supply point 26 have the same direction, and the two rows of static pressure air flotation The spiral groove 25 of the air supply point 26 is blocked, and the outer side of the spiral dynamic pressure groove 25 has a schematic diagram of an air sealing edge 24 .

附图8是止推轴承工作面31上静压气浮供气点30双排布置，静压气浮供气点30两侧的螺旋状动压沟槽29方向相反，两排静压气浮供气点30的螺旋状动压沟槽29不通，螺旋状动压沟槽29外侧带有封气边28的示意图。Accompanying drawing 8 is the static pressure air flotation air supply point 30 double-row arrangement on the thrust bearing working surface 31. The helical dynamic pressure groove 29 of the air supply point 30 is blocked, and the outer side of the helical dynamic pressure groove 29 has a schematic diagram of an air sealing edge 28 .

附图9是止推轴承工作面35上静压气浮供气点34双排布置，静压气浮供气点34两侧的螺旋状动压沟槽32方向相同，两排静压气浮供气点34的螺旋状动压沟槽32相通，螺旋状动压沟槽32外侧带有封气边33的示意图。Accompanying drawing 9 is the static pressure air flotation air supply point 34 double-row arrangement on the thrust bearing working surface 35, the spiral dynamic pressure grooves 32 on both sides of the static pressure air flotation air supply point 34 have the same direction, and the two rows of static pressure air flotation The spiral dynamic pressure grooves 32 of the gas supply point 34 communicate with each other, and the outer sides of the spiral dynamic pressure grooves 32 have a schematic diagram of an air sealing edge 33 .

附图10是止推轴承工作面36上静压气浮供气点38双排布置，静压气浮供气点38两侧的螺旋状动压沟槽39方向相同，两排静压气浮供气点38的螺旋状动压沟槽39相通，沿静压气浮供气点38分布圆的圆周方向开有多个与两侧螺旋状动压沟槽39相通的均压槽40，螺旋状动压沟槽39外侧带有封气边37的示意图。Accompanying drawing 10 is the static pressure air flotation air supply point 38 double-row arrangement on the thrust bearing working surface 36, the spiral dynamic pressure grooves 39 on both sides of the static pressure air flotation air supply point 38 have the same direction, and the two rows of static pressure air flotation The spiral dynamic pressure grooves 39 of the air supply point 38 communicate with each other, and there are a plurality of pressure equalizing grooves 40 communicating with the spiral dynamic pressure grooves 39 on both sides along the circumferential direction of the distribution circle of the static pressure air flotation air supply point 38. The schematic diagram of the outer side of the shape dynamic pressure groove 39 with the air sealing edge 37.

附图11是所述静压气浮供气点43与螺旋状动压沟槽42在同一个工作面41上的示意图。Figure 11 is a schematic diagram of the static pressure air flotation gas supply point 43 and the spiral dynamic pressure groove 42 on the same working surface 41 .

附图12是所述静压气浮供气点46在与开有螺旋状动压沟槽45的工作面44相对应的工作面上的示意图。Figure 12 is a schematic diagram of the static pressure air flotation gas supply point 46 on the working surface corresponding to the working surface 44 with the spiral dynamic pressure groove 45 opened thereon.

附图13是所述的静压气浮供气点是孔47的示意图。Accompanying drawing 13 is the schematic diagram that described static pressure air flotation air supply point is hole 47.

附图14是所述的静压气浮供气点是缝隙48的示意图。Accompanying drawing 14 is the schematic diagram that the static pressure air flotation air supply point is the slit 48.

附图15是所述的静压气浮供气点是用带有毛细孔的材料50填充的孔49的示意图。Accompanying drawing 15 is the schematic diagram of the hole 49 filled with the material 50 with capillary pores at the static pressure air flotation gas supply point.

具体实施方式Detailed ways

下面结合附图对本发明的实施例作进一步详细描述。Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

由图1-图15可知，本发明是：在止推轴承工作面上，静压气浮供气点分布圆两侧分别开有螺旋状动压沟槽。As can be seen from Figures 1 to 15, the present invention is: on the working surface of the thrust bearing, spiral dynamic pressure grooves are respectively opened on both sides of the distribution circle of the static pressure air flotation air supply point.

所述的静压气浮供气点分布圆两侧的螺旋状动压沟槽相通或不通。The spiral dynamic pressure grooves on both sides of the distribution circle of the static pressure air flotation air supply point are connected or not connected.

所述的静压气浮供气点分布圆两侧的螺旋状动压沟槽外侧带有封气边或不带有封气边。The outer sides of the spiral dynamic pressure grooves on both sides of the distribution circle of the static pressure air flotation air supply points have or do not have air sealing edges.

所述的止推轴承工作面上沿静压气浮供气点分布圆的圆周方向开有或不开有多个与两侧螺旋状动压沟槽相通的均压槽。On the working surface of the thrust bearing, along the circumferential direction of the static pressure air flotation gas supply point distribution circle, there are or not a plurality of pressure equalizing grooves communicating with the helical dynamic pressure grooves on both sides.

所述的静压气浮供气点是单排布置或双排布置。The static pressure air flotation air supply points are arranged in a single row or in a double row.

所述的静压气浮供气点是孔或缝隙或是用带有毛细孔的材料填充的孔。The static pressure air flotation air supply point is a hole or a gap or a hole filled with a material with capillary pores.

所述的静压气浮供气点与动压沟槽在同一个工作面上或在与开有动压沟槽的工作面相对应的工作面上。The static pressure air flotation gas supply point is on the same working surface as the dynamic pressure groove or on the working surface corresponding to the working surface with the dynamic pressure groove.

所述的双排布置的静压气浮供气点的螺旋槽动静压复合气体止推轴承，静压气浮供气点两侧的螺旋状动压沟槽方向相同或相反。The spiral groove dynamic and static pressure composite gas thrust bearings of the static pressure air flotation gas supply point arranged in double rows have the same or opposite directions of the spiral dynamic pressure grooves on both sides of the static pressure air flotation gas supply point.

所述的双排布置的静压气浮供气点的螺旋槽动静压复合气体止推轴承，两排静压气浮供气点的螺旋状动压沟槽相通或不通。The spiral groove dynamic and static pressure composite gas thrust bearings of the static pressure air flotation gas supply points arranged in double rows, and the spiral dynamic pressure grooves of the static pressure air flotation gas supply points in the two rows are connected or not connected.

具体实施例specific embodiment

实施例1：Example 1:

如附图1所示，在止推轴承工作面1上静压气浮供气点3分布圆两侧分别开有不相通的螺旋状动压沟槽2，该工作面配以光滑圆形平面。As shown in Figure 1, on the working surface 1 of the thrust bearing, there are respectively unconnected spiral dynamic pressure grooves 2 on both sides of the distribution circle of the static pressure air flotation air supply point 3, and the working surface is equipped with a smooth circular plane .

实施例2：Example 2:

如附图2所示，在止推轴承工作面6上静压气浮供气点5分布圆两侧分别开有相通的螺旋状动压沟槽4，该工作面配以光滑圆形平面。As shown in Figure 2, on the thrust bearing working surface 6, there are connected spiral dynamic pressure grooves 4 on both sides of the distribution circle of the static pressure air flotation air supply point 5, and the working surface is equipped with a smooth circular plane.

实施例3：Example 3:

如附图3所示，在止推轴承工作面10上静压气浮供气点9分布圆两侧分别开有不相通的螺旋状动压沟槽7，螺旋状动压沟槽7外侧带有封气边8，该工作面配以光滑圆形平面。As shown in Figure 3, on the thrust bearing working surface 10, there are respectively unconnected helical dynamic pressure grooves 7 on both sides of the distribution circle of the static pressure air flotation air supply point 9, and the outer sides of the helical dynamic pressure grooves 7 have There is an air sealing edge 8, and the working surface is equipped with a smooth circular plane.

实施例4：Example 4:

如附图4所示，在止推轴承工作面14上静压气浮供气点13分布圆两侧分别开有相通的螺旋状动压沟槽11，螺旋状动压沟槽11外侧带有封气边12，该工作面配以光滑圆形平面。As shown in Figure 4, on the thrust bearing working surface 14, there are connected helical dynamic pressure grooves 11 on both sides of the distribution circle of the static pressure air flotation gas supply point 13, and the outer sides of the helical dynamic pressure grooves 11 have Gas sealing edge 12, this working face is equipped with smooth circular plane.

实施例5：Example 5:

如附图5所示，止推轴承工作面18上沿静压气浮供气点17分布圆的圆周方向开有多个与两侧螺旋状动压沟槽16相通的均压槽15，螺旋状动压沟槽16外侧不带有封气边，该工作面配以光滑圆形平面。As shown in accompanying drawing 5, on the thrust bearing working surface 18, there are a plurality of pressure equalizing grooves 15 communicating with the helical dynamic pressure grooves 16 on both sides along the circumferential direction of the distribution circle of the static pressure air flotation gas supply point 17. The outside of the shape dynamic pressure groove 16 does not have an air sealing edge, and the working surface is equipped with a smooth circular plane.

实施例6：Embodiment 6:

如附图6所示，止推轴承工作面23上沿静压气浮供气点22分布圆的圆周方向开有多个与两侧螺旋状动压沟槽20相通的均压槽19，螺旋状动压沟槽20外侧带有封气边21，该工作面配以光滑圆形平面。As shown in Figure 6, a plurality of pressure equalizing grooves 19 communicating with the helical dynamic pressure grooves 20 on both sides are formed on the thrust bearing working surface 23 along the circumferential direction of the distribution circle of the static pressure air flotation gas supply point 22. The outer side of the shape dynamic pressure groove 20 has an air sealing edge 21, and the working surface is equipped with a smooth circular plane.

实施例7：Embodiment 7:

如附图7所示，止推轴承工作面27上静压气浮供气点26双排布置，静压气浮供气点26两侧的螺旋状动压沟槽25方向相同，两排静压气浮供气点26的螺旋槽25不通，螺旋状动压沟槽25外侧带有封气边24，该工作面配以光滑圆形平面。As shown in Figure 7, the static pressure air flotation air supply point 26 on the thrust bearing working surface 27 is arranged in double rows, and the spiral dynamic pressure grooves 25 on both sides of the static pressure air flotation air supply point 26 have the same direction. The helical groove 25 of the compressed air flotation air supply point 26 is blocked, and the outer side of the helical dynamic pressure groove 25 has an air sealing edge 24, and the working surface is equipped with a smooth circular plane.

实施例8：Embodiment 8:

如附图8所示，止推轴承工作面31上静压气浮供气点30双排布置，静压气浮供气点30两侧的螺旋状动压沟槽29方向相反，两排静压气浮供气点30的螺旋状动压沟槽29不通，螺旋状动压沟槽29外侧带有封气边28，该工作面配以光滑圆形平面。As shown in Figure 8, the static pressure air flotation air supply point 30 on the thrust bearing working surface 31 is arranged in double rows, and the spiral dynamic pressure grooves 29 on both sides of the static pressure air flotation air supply point 30 are in opposite directions. The helical dynamic pressure groove 29 of the compressed air flotation air supply point 30 is blocked, and the outer side of the helical dynamic pressure groove 29 has an air sealing edge 28, and the working surface is equipped with a smooth circular plane.

实施例9：Embodiment 9:

如附图9所示，止推轴承工作面35上静压气浮供气点34双排布置，静压气浮供气点34两侧的螺旋状动压沟槽32方向相同，两排静压气浮供气点34的螺旋状动压沟槽32相通，螺旋状动压沟槽32外侧带有封气边33，该工作面配以光滑圆形平面。As shown in Figure 9, the static pressure air flotation air supply point 34 on the thrust bearing working surface 35 is arranged in double rows, and the spiral dynamic pressure grooves 32 on both sides of the static pressure air flotation air supply point 34 have the same direction. The helical dynamic pressure grooves 32 of the compressed air flotation gas supply point 34 communicate with each other, and the outer side of the helical dynamic pressure grooves 32 has an air sealing edge 33, and the working surface is equipped with a smooth circular plane.

实施例10：Example 10:

如附图10所示，止推轴承工作面36上静压气浮供气点38双排布置，静压气浮供气点38两侧的螺旋状动压沟槽39方向相同，两排静压气浮供气点38的螺旋状动压沟槽39相通，沿静压气浮供气点38分布圆的圆周方向开有多个与两侧螺旋状动压沟槽39相通的均压槽40，螺旋状动压沟槽39外侧带有封气边37，该工作面配以光滑圆形平面。As shown in Figure 10, the static pressure air flotation air supply points 38 on the thrust bearing working surface 36 are arranged in double rows, and the spiral dynamic pressure grooves 39 on both sides of the static pressure air flotation air supply points 38 have the same direction, and the two rows of static pressure air flotation air supply points 38 have the same direction. The helical dynamic pressure grooves 39 of the compressed air flotation air supply points 38 communicate with each other, and along the circumferential direction of the distribution circle of the static pressure air flotation air supply points 38, there are a plurality of pressure equalization grooves communicating with the helical dynamic pressure grooves 39 on both sides. 40. The spiral dynamic pressure groove 39 has an air sealing edge 37 on the outside, and the working surface is equipped with a smooth circular plane.

Claims (9)

1.一种螺旋槽动静压复合气体止推轴承，其特征是：在止推轴承工作面上，静压气浮供气点分布圆两侧分别开有螺旋状动压沟槽。1. A spiral groove dynamic and static pressure composite gas thrust bearing, characterized in that: on the thrust bearing working surface, spiral dynamic pressure grooves are respectively arranged on both sides of the distribution circle of the static pressure air flotation gas supply point. 2.如权力要求1所述的螺旋槽动静压复合气体止推轴承，其特征是：所述的静压气浮供气点分布圆两侧的螺旋状动压沟槽相通或不通。2. The spiral groove dynamic and static pressure composite gas thrust bearing according to claim 1, characterized in that: the spiral dynamic pressure grooves on both sides of the static pressure air flotation gas supply point distribution circle are connected or not connected. 3.如权力要求1所述的螺旋槽动静压复合气体止推轴承，其特征是：所述的静压气浮供气点分布圆两侧的螺旋状动压沟槽外侧带有封气边或不带有封气边。3. The spiral groove dynamic and static pressure composite gas thrust bearing according to claim 1, characterized in that: the outer sides of the spiral dynamic pressure grooves on both sides of the distribution circle of the static pressure air flotation gas supply point have air sealing edges Or without sealing edge. 4.如权力要求1所述的螺旋槽动静压复合气体止推轴承，其特征是：所述的止推轴承工作面上沿静压气浮供气点分布圆的圆周方向开有或不开有多个与两侧螺旋状动压沟槽相通的均压槽。4. The spiral groove dynamic and static pressure composite gas thrust bearing according to claim 1, characterized in that: the working surface of the thrust bearing is opened or not opened along the circumferential direction of the distribution circle of the static pressure air flotation gas supply point There are multiple pressure equalizing grooves communicating with the helical dynamic pressure grooves on both sides. 5.如权力要求1所述的螺旋槽动静压复合气体止推轴承，其特征是：所述的静压气浮供气点是单排布置或双排布置。5. The spiral groove dynamic and static pressure composite gas thrust bearing according to claim 1, characterized in that: said static pressure air flotation gas supply points are arranged in a single row or in double rows. 6.如权力要求1所述的螺旋槽动静压复合气体止推轴承，其特征是：所述的静压气浮供气点是孔或缝隙或是用带有毛细孔的材料填充的孔。6. The spiral groove dynamic and static pressure composite gas thrust bearing according to claim 1, characterized in that: the static pressure air flotation gas supply point is a hole or a gap or a hole filled with a material with capillary pores. 7.如权力要求1所述的螺旋槽动静压复合气体止推轴承，其特征是：所述静压气浮供气点与螺旋状动压沟槽在同一个工作面上或在与开有螺旋状动压沟槽的工作面相对应的工作面上。7. The spiral groove dynamic and static pressure composite gas thrust bearing according to claim 1, characterized in that: the static pressure air flotation gas supply point and the spiral dynamic pressure groove are on the same working surface or in the same working surface as the spiral groove. The working surface corresponding to the working surface of the spiral dynamic pressure groove. 8.如权力要求5所述的双排布置的静压气浮供气点的螺旋槽动静压复合气体止推轴承，其特征是：所述的静压气浮供气点两侧的螺旋状动压沟槽方向相同或相反。8. The spiral groove dynamic and static pressure composite gas thrust bearing of the static pressure air flotation gas supply point arranged in double rows as claimed in claim 5, characterized in that: The directions of the dynamic pressure grooves are the same or opposite. 9.如权力要求5所述的双排布置的静压气浮供气点的螺旋槽动静压复合气体止推轴承，其特征是：所述的两排静压气浮供气点的螺旋状动压沟槽相通或不通。9. The spiral groove dynamic and static pressure composite gas thrust bearing of the static pressure air flotation gas supply point arranged in double rows as claimed in claim 5, characterized in that: the spiral shape of the two rows of static pressure air flotation gas supply points The dynamic pressure grooves are connected or not.
CN200510009632.5A 2005-01-18 2005-01-18 Hybrid spiral groove dynamic and static pressure gas composite thrust bearing Pending CN1632331A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101561013B (en) * 2009-05-30 2010-09-01 华中科技大学 Gas bearing posture active control device
CN102261374A (en) * 2011-06-15 2011-11-30 罗立峰 Dynamic pressure gas thrust ceramic bearing
CN102767562A (en) * 2012-07-18 2012-11-07 清华大学 Gas dynamic and static pressure mixed thrust protection bearing for electromagnetic bearing system
CN105202014A (en) * 2015-05-19 2015-12-30 罗立峰 Slot type dynamic pressure gas radial bearing
CN106438702A (en) * 2016-11-22 2017-02-22 江苏工大金凯高端装备制造有限公司 Aerostatic air-floating bearing
CN107269701A (en) * 2017-07-12 2017-10-20 哈尔滨工业大学 A kind of plane air-bearing with air drain
CN107882870A (en) * 2017-11-29 2018-04-06 浙江大学 Bionical Spiral Groove Thrust Bearing
CN110985527A (en) * 2019-12-30 2020-04-10 江苏毅合捷汽车科技股份有限公司 Thrust air dynamic pressure bearing
WO2020096807A1 (en) * 2018-11-05 2020-05-14 Energy Recovery, Inc. System for hybrid hydrodynamic-hydrostatic thrust bearings
CN111853051A (en) * 2019-04-25 2020-10-30 弗罗伊登贝格-诺克普通合伙公司 Hydraulic thrust washer with pumping features for lean lubrication applications
CN114688164A (en) * 2020-12-25 2022-07-01 珠海格力电器股份有限公司 Gas bearing assembly, compressor and air conditioner

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101561013B (en) * 2009-05-30 2010-09-01 华中科技大学 Gas bearing posture active control device
CN102261374A (en) * 2011-06-15 2011-11-30 罗立峰 Dynamic pressure gas thrust ceramic bearing
CN102767562A (en) * 2012-07-18 2012-11-07 清华大学 Gas dynamic and static pressure mixed thrust protection bearing for electromagnetic bearing system
CN102767562B (en) * 2012-07-18 2015-01-14 清华大学 Gas dynamic and static pressure mixed thrust protection bearing for electromagnetic bearing system
CN105202014A (en) * 2015-05-19 2015-12-30 罗立峰 Slot type dynamic pressure gas radial bearing
CN106438702A (en) * 2016-11-22 2017-02-22 江苏工大金凯高端装备制造有限公司 Aerostatic air-floating bearing
CN107269701A (en) * 2017-07-12 2017-10-20 哈尔滨工业大学 A kind of plane air-bearing with air drain
CN107882870A (en) * 2017-11-29 2018-04-06 浙江大学 Bionical Spiral Groove Thrust Bearing
CN107882870B (en) * 2017-11-29 2024-03-22 浙江大学 Bionic spiral groove thrust bearing
CN113195912A (en) * 2018-11-05 2021-07-30 能量回收股份有限公司 System and method for hybrid hydrodynamic-hydrostatic thrust bearing
US10731702B2 (en) 2018-11-05 2020-08-04 Energy Recovery, Inc. System and method for hybrid hydrodynamic-hydrostatic thrust bearings
WO2020096807A1 (en) * 2018-11-05 2020-05-14 Energy Recovery, Inc. System for hybrid hydrodynamic-hydrostatic thrust bearings
JP2022506443A (en) * 2018-11-05 2022-01-17 エナジー リカバリー，インコーポレイティド Hybrid dynamic pressure hydrostatic thrust bearing system and method
CN113195912B (en) * 2018-11-05 2022-10-04 能量回收股份有限公司 System and method for hybrid hydrodynamic-hydrostatic thrust bearings
JP7631194B2 (en) 2018-11-05 2025-02-18 エナジー リカバリー，インコーポレイティド HYBRID HYDROHYDRODYNAMIC THRUST BEARING SYSTEM AND METHOD - Patent application
CN111853051A (en) * 2019-04-25 2020-10-30 弗罗伊登贝格-诺克普通合伙公司 Hydraulic thrust washer with pumping features for lean lubrication applications
CN111853051B (en) * 2019-04-25 2021-09-14 弗罗伊登贝格-诺克普通合伙公司 Hydraulic thrust washer with pumping features for lean lubrication applications
CN110985527A (en) * 2019-12-30 2020-04-10 江苏毅合捷汽车科技股份有限公司 Thrust air dynamic pressure bearing
CN114688164A (en) * 2020-12-25 2022-07-01 珠海格力电器股份有限公司 Gas bearing assembly, compressor and air conditioner

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