WO2023279589A1 - 一种空气悬浮径向轴承及氢能源压缩机 - Google Patents

一种空气悬浮径向轴承及氢能源压缩机 Download PDF

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Publication number
WO2023279589A1
WO2023279589A1 PCT/CN2021/127226 CN2021127226W WO2023279589A1 WO 2023279589 A1 WO2023279589 A1 WO 2023279589A1 CN 2021127226 W CN2021127226 W CN 2021127226W WO 2023279589 A1 WO2023279589 A1 WO 2023279589A1
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WO
WIPO (PCT)
Prior art keywords
foil
bearing
air suspension
fixing
radial bearing
Prior art date
Application number
PCT/CN2021/127226
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English (en)
French (fr)
Inventor
钟仁志
袁军
项懂欣
Original Assignee
鑫磊压缩机股份有限公司
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Application filed by 鑫磊压缩机股份有限公司 filed Critical 鑫磊压缩机股份有限公司
Publication of WO2023279589A1 publication Critical patent/WO2023279589A1/zh

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/047—Bearings hydrostatic; hydrodynamic
    • 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
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/024—Sliding-contact bearings for exclusively rotary movement for radial load only with flexible leaves to create hydrodynamic wedge, e.g. radial foil 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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
    • F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
    • F16C17/243—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety related to temperature and heat, e.g. for preventing overheating
    • 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
    • F16C2360/00—Engines or pumps

Definitions

  • the invention relates to the field of air suspension bearings, in particular to an air suspension radial bearing and a hydrogen energy compressor.
  • Aerodynamic pressure bearing is one of the sliding bearings. Its structure and working principle are similar to liquid sliding bearings. The difference is that gas (mostly air) is used as the lubricating medium. It can be used in high-speed machines, instruments or radioactive devices due to its wide temperature range and low load-carrying capacity.
  • gas mostly air
  • Chinese utility model patent application discloses a foil bearing, including a sleeve, a corrugated foil and a top foil; one end of the top foil is connected to the inner side wall of the bearing sleeve, and the The other end of the top foil extends along the inner side wall of the bearing sleeve, and the two ends of the top foil are butted to form a ring structure; the corrugated foil is made of soft rubber, and the corrugated foil is located between the bearing sleeve and the bearing sleeve.
  • the corrugated foil in the foil bearing is made of soft rubber, its precision is easy to control, and the adjustment of the parameters of the corrugated foil is more convenient, so that the production of the corrugated foil is simpler.
  • the soft rubber is made of The damping coefficient of the wave foil is larger, which makes the impact resistance of the foil bearing better, so that the foil bearing is more stable during operation, and the application range of the foil bearing is wider.
  • the existing technology has the following disadvantages: the wave foil is welded to the bearing seat by welding to fix the wave foil, middle foil and top foil.
  • the bearing seat needs to be replaced at the same time; This increases the number of replacement parts and increases maintenance costs.
  • the object of the present invention is: to solve the above problems, it is proposed to use locking screws to fix the assembly of corrugated foil, middle foil and top foil on the bearing housing.
  • the corrugated foil, middle foil or top foil fails, only the corrugated foil
  • the assembly of the foil, the middle foil and the top foil can be disassembled without replacing the bearing seat; thereby reducing the number of replacement parts and reducing the maintenance cost of an air-suspended radial bearing and a hydrogen energy compressor.
  • An air-suspension radial bearing the bearing includes a bearing seat, a corrugated foil, a middle foil, a top foil and locking screws;
  • the bearing seat is provided with a bearing hole, a fixing groove and a screw hole, and the corrugated foil, the middle foil and the top foil are all The ring shape of the opening;
  • the corrugated foil is fixedly sleeved on the outer wall of the middle foil, the middle foil is sleeved on the outer wall of the top foil, and the outer wall of the corrugated foil is embedded in the bearing hole;
  • the middle foil and the top foil are set on the side of their respective opening ends
  • There are fixed parts protruding from the respective outer walls, the fixed part of the middle foil and the fixed part of the top foil pass through the opening end of the corrugated foil and fit together;
  • the fixed part of the middle foil and the fixed part of the top foil are both fitted in the fixed In the groove, the locking screw is screwed into the screw hole, and its top
  • the tightening and fixing direction of the locking screw is the same as the rotation direction of the inner rotating shaft supported by the air suspension radial bearing.
  • a plurality of temperature sensors are fixedly arranged on the end surface of the bearing seat, and the temperature sensors are used to detect the surface temperature of the air suspension radial bearing.
  • the corrugated foil is provided with a plurality of connecting parts, and the plurality of connecting parts connect the multi-stage corrugated foil into a single integral corrugated foil.
  • the inner surface of the top foil is provided with a polytetrafluoroethylene coating.
  • the wave foil and the middle foil are fixedly connected by laser welding.
  • the present invention also discloses a hydrogen energy compressor, which includes a motor barrel, a motor stator, a motor shaft, an air suspension radial bearing, an air suspension axial bearing and a thrust plate;
  • the motor stator is fixedly embedded in the motor barrel Inside, the motor shaft is provided with a motor rotor, and the motor rotor is aligned with the motor stator;
  • two air-suspended radial bearings are sleeved at both ends of the motor shaft to provide support and limit the motor shaft in the radial direction;
  • the thrust disc is fixedly sleeved
  • the supporting parts of the air suspension axial bearing are located on both sides of the thrust disc, and are used for axially limiting the thrust disc.
  • the air suspension axial bearing includes a first fixed plate, a second fixed plate, a support device and a positioning pin; the two support devices are arranged opposite to each other on the oppositely arranged first fixed plate and the second fixed plate; the support device includes The bottom foil, the axial wave foil and the axial top foil, the axial wave foil is located between the bottom foil and the axial top foil in the axial direction and the three are fixedly connected; the first fixing plate and the second fixing plate are oppositely provided with pins
  • the bottom foil is provided with a plurality of pin slots axially penetrating and aligned with the pin holes; the positioning pin passes through the pin slots of the two support devices, and its two ends are respectively embedded in the first fixing plate and the second fixing plate pin holes.
  • the pin groove is an open groove.
  • the four pin grooves are arranged oppositely in pairs, and the connecting lines of the pin grooves arranged oppositely in pairs are perpendicular to each other.
  • corrugated foil, middle foil and top foil The assembly of corrugated foil, middle foil and top foil is pressed into the fixing groove by the top of the locking screw.
  • the corrugated foil, middle foil or top foil is damaged and needs to be replaced, it is only necessary to remove the locking screw to replace the corrugated foil, middle foil and
  • the combination of the foil and the top foil can be disassembled without the need to replace the bearing seat; thereby reducing the number of parts to be replaced and reducing the maintenance cost of the bearing.
  • Fig. 1 is a structural schematic diagram of the present invention.
  • Fig. 2 is a structural schematic diagram of the wave foil, the middle foil and the top foil.
  • Fig. 3 is a schematic diagram of the structure of the corrugated foil.
  • Fig. 4 is a schematic structural diagram of a hydrogen energy compressor.
  • Fig. 5 is a schematic structural diagram of an air suspension axial bearing.
  • Fig. 6 is a schematic structural view of the supporting device.
  • the bearing includes a bearing seat 1, a wave foil 2, a middle foil 3, a top foil 4 and a locking screw 5;
  • the bearing seat 1 is provided with a bearing hole 11,
  • the fixing groove 12 and the screw hole 13, the wave foil 2, the middle foil 3 and the top foil 4 are all in the shape of an open ring;
  • the wave foil 2 is fixedly set on the outer wall of the middle foil 3, and the middle foil 3 is set on the outer wall of the top foil 4,
  • the outer wall of the wave foil 2 is embedded in the bearing hole 11;
  • the middle foil 3 and the top foil 4 are provided with fixing parts 41 protruding from the respective outer walls on the side of their respective opening ends, and the fixing part of the middle foil 3 and the top foil 4
  • Both the fixing parts 41 of the wave foil 2 pass through the opening end of the corrugated foil 2 and fit together;
  • the fixing parts 41 of the middle foil 3 and the top foil 4 are both fitted in the fixing groove 12, and the locking screw 5 is screwed into the screw hole 13, and its top end is in
  • the tightening and fixing direction of the locking screw 5 is the same as the rotation direction of the inner shaft supported by the air suspension radial bearing. Therefore, when the locking screw 5 compresses the assembly of the corrugated foil 2 , the middle foil 3 and the top foil 4 , it will not receive the force in the opposite direction provided by the inner rotating shaft, which is beneficial to maintain the fastening effect of the locking screw 5 .
  • a plurality of temperature sensors 14 are fixedly arranged on the end face of the bearing seat 1, and the temperature sensors 14 are used to detect the surface temperature of the air suspension radial bearing. When the temperature of the bearing surface rises, it can be detected by the temperature sensor 14, and the emergency stop is performed to reduce losses.
  • the corrugated foil 2 is provided with a plurality of connecting parts, and the multiple connected parts connect the multi-section corrugated foil 2 into a single integral corrugated foil 2 .
  • the multiple connected parts connect the multi-section corrugated foil 2 into a single integral corrugated foil 2 .
  • the inner surface of the top foil 4 is provided with a polytetrafluoroethylene coating so as to improve the high temperature resistance of the bearing and reduce the friction coefficient of the surface of the top foil 4 .
  • the wave foil 2 and the middle foil 3 are fixedly connected by laser welding.
  • the compressor includes a motor barrel 61, a motor stator 62, a motor shaft 620, an air suspension radial bearing 63, an air suspension axial bearing 64 and a thrust plate 65;
  • the motor stator 62 Fixedly embedded in the motor barrel 61, the motor shaft 620 is provided with a motor rotor, and the motor rotor is aligned with the motor stator 62; two air-suspended radial bearings 63 are sleeved at both ends of the motor shaft 620, for aligning the motor shaft in the diameter Provide support and limit;
  • the thrust plate 65 is fixedly sleeved on the motor shaft 620 , and the supporting parts of the air suspension axial bearing 64 are located on both sides of the thrust plate 65 for axially limiting the thrust plate 65 .
  • the air suspension axial bearing 64 includes a first fixed plate 71, a second fixed plate 72, a support device 73 and a positioning pin 74;
  • the supporting device 73 includes a bottom foil 731, an axial wave foil 732 and an axial top foil 733, and the axial wave foil 732 is located between the bottom foil 731 and the axial top foil 733 in the axial direction
  • the first fixed plate 71 and the second fixed plate 72 are provided with pin holes 711 opposite to each other, and the bottom foil 731 is provided with a plurality of pin grooves 712 axially penetrating and aligned with the pin holes 711; positioning
  • the pin 74 passes through the pin slots 712 of the two supporting devices 73 , and its two ends are inserted into the pin holes 711 on the first fixing plate 71 and the second fixing plate 72 respectively.
  • a plurality of positioning pins 74 pass through the pin grooves 712 of the two supporting devices 73 to limit the radial direction thereof, preventing the supporting device 73 from rotating with the thrust plate 65 driven by the motor shaft 620 when the motor shaft 620 rotates. ;
  • the rotation speed of the motor shaft 620 reaches a certain level, an air film is formed between the supporting device 73 and the thrust plate 65, thereby separating them and achieving the effect of suspension;
  • No pressing force is provided on the surface of the bottom foil 731, which will not cause it to be compressed and deformed; thus, it will not cause the bearing surface to be uneven in the axial direction, which is conducive to the formation of an air model between the bearing surface and the motor shaft 620, and improves the bearing. service life.
  • the pin groove 712 is an open groove.
  • the four pin slots 712 are arranged in pairs, and the connecting lines of the pin slots 712 arranged in pairs are perpendicular to each other so as to realize the limitation of the supporting device 3 in the up-down radial direction and in the left-right radial direction.

Abstract

一种空气悬浮径向轴承（63）及氢能源压缩机。轴承（63）包括轴承座（1）、波箔（2）、中箔（3）、顶箔（4）和锁紧螺钉（5）；轴承座（1）设置有轴承孔（11）、固定槽（12）和螺钉孔（13）；波箔（2）固定套设在中箔（3）外壁，中箔（3）套设在顶箔（4）外壁，并且波箔（2）外壁嵌设于轴承孔（11）内；中箔（3）和顶箔（4）在各自的开口端一侧都设置有凸出于各自外壁的固定部（41），中箔（3）的固定部（41）和顶箔（4）的固定部（41）都穿过波箔（2）的开口端并且相互贴合；中箔（3）的固定部（41）和顶箔（4）的固定部（41）都嵌合于固定槽（12）中，锁紧螺钉（5）旋合于螺钉孔（13），并且其顶端与中箔（3）的固定部（41）底面相接触将中箔（3）和顶箔（4）的固定部（41）压紧在固定槽（12）内。

Description

一种空气悬浮径向轴承及氢能源压缩机 技术领域
本发明涉及空气悬浮轴承领域，尤其涉及一种空气悬浮径向轴承及氢能源压缩机。
 背景技术
空气动压轴承是滑动轴承形式当中的一种，其结构和工作原理与液体滑动轴承类似，不同的是采用气体（多为空气）作为润滑介质，由于其摩阻极低、适用速度范围大、适用温度范围广、承载能力低等诸多优点，因而可用于高速机器、仪器或放射性装置中。
中国实用新型专利申请（公开号CN212672222U，公开日：20210309）公开了一种箔片轴承，包括套、波箔和顶箔；所述顶箔的一端与所述轴承套的内侧壁连接，所述顶箔的另一端沿所述轴承套的内侧壁延伸，且所述顶箔的两端对接形成环状结构；所述波箔由软胶制成，所述波箔位于所述轴承套与所述顶箔之间，且所述波箔靠近所述轴承套的一侧与所述轴承套的内侧壁贴合。该箔片轴承中的波箔由软胶制成，其精度容易控制，且使波箔的参数的调整也更加的方便，以使波箔的生产制造更加的简单，此外，该软胶制成的波箔的阻尼系数更大，使该箔片轴承的抗冲击性更好，从而使箔片轴承在运行时更加的平稳，以使该箔片轴承可适用范围更加的宽泛。
 技术问题
现有技术存在以下不足：通过焊接方式将波箔焊接在轴承座上进而实现波箔、中箔和顶箔的固定，当波箔、中箔或者顶箔发生故障时，需要同时更换轴承座；从而增加了更换零件的数量，提高了维护成本。
 技术解决方案
本发明的目的是：针对上述问题，提出采用锁紧螺钉将波箔、中箔和顶箔的组合件固定在轴承座上，当波箔、中箔或者顶箔发生故障时，只需要将波箔、中箔和顶箔的组合件拆卸即可而不需要更换轴承座；从而减少了更换零件的数量，降低维护成本的一种空气悬浮径向轴承及氢能源压缩机。
为了实现上述的目的，本发明采用了以下的技术方案：
一种空气悬浮径向轴承，该轴承包括轴承座、波箔、中箔、顶箔和锁紧螺钉；轴承座设置有轴承孔、固定槽和螺钉孔，波箔、中箔和顶箔都为开口的圆环形状；波箔固定套设在中箔外壁，中箔套设在顶箔外壁，并且波箔外壁嵌设于轴承孔内；中箔和顶箔在各自的开口端一侧都设置有凸出于各自外壁的固定部，中箔的固定部和顶箔的固定部都穿过波箔的开口端并且相互贴合；中箔的固定部和顶箔的固定部都嵌合于固定槽中，锁紧螺钉旋合于螺钉孔，并且其顶端与中箔的固定部底面相接触将中箔和顶箔的固定部压紧在固定槽内。
作为优选，锁紧螺钉的压紧固定方向与空气悬浮径向轴承所支撑的内转轴的转动方向相同。
作为优选，轴承座端面还固定设置有多个温度传感器，温度传感器用于检测空气悬浮径向轴承的表面温度。
作为优选，波箔设置有多个连接部，多个连接部将多段波箔连接为单片整体波箔。
作为优选，顶箔内表面设置有聚四氟乙烯涂层。
作为优选，波箔和中箔通过激光焊接方式固定连接。
另外，本发明还公开了一种氢能源压缩机，该压缩机包括电机筒、电机定子、电机轴、空气悬浮径向轴承、空气悬浮轴向轴承和推力盘；电机定子固定嵌设在电机筒内，电机轴设置有电机转子，电机转子与电机定子相对齐；两个空气悬浮径向轴承套设在电机轴两端，用于对电机轴在径向提供支撑限位；推力盘固定套设在电机轴上，空气悬浮轴向轴承的支撑部位位于推力盘两侧，用于对推力盘进行轴向限位。
作为优选，空气悬浮轴向轴承包括第一固定板、第二固定板、支撑装置和定位销；两个支撑装置相对设置分别位于相对设置的第一固定板和第二固定板上；支撑装置包括底箔、轴向波箔和轴向顶箔，轴向波箔在轴向位于底箔和轴向顶箔之间并且三者固定连接；第一固定板和第二固定板上相对设置有销钉孔，底箔上设置有轴向贯穿并且与销钉孔相对齐的多个销钉槽；定位销穿过两个支撑装置的销钉槽，并且其两端分别嵌入第一固定板和第二固定板上的销钉孔。
作为优选，销钉槽为开口槽。四个销钉槽两两相对设置，并且两两相对设置的销钉槽的连线相互垂直。
 有益效果
本发明采用上述技术方案的一种空气悬浮径向轴承及氢能源压缩机的优点是：
波箔、中箔和顶箔的组合件通过锁紧螺钉顶端压紧在固定槽内，当波箔、中箔或顶箔发生损坏需要更换时，只需要卸掉锁紧螺钉将波箔、中箔和顶箔的组合件拆卸即可，而不需要对轴承座进行更换；从而减少了需要更换零件的数量，降低了轴承的维护成本。
 附图说明
图1为本发明的结构示意图。
图2为波箔、中箔和顶箔的结构示意图。
图3为波箔的结构示意图。
图4为氢能源压缩机的结构示意图。
图5为空气悬浮轴向轴承的结构示意图。
图6为支撑装置的结构示意图。
10-内转轴、L1-锁紧螺钉紧固方向、L2-内转轴转动方向、713-调整垫片。
 本发明的最佳实施方式
如图1、图2所示的一种空气悬浮径向轴承，该轴承包括轴承座1、波箔2、中箔3、顶箔4和锁紧螺钉5；轴承座1设置有轴承孔11、固定槽12和螺钉孔13，波箔2、中箔3和顶箔4都为开口的圆环形状；波箔2固定套设在中箔3外壁，中箔3套设在顶箔4外壁，并且波箔2外壁嵌设于轴承孔11内；中箔3和顶箔4在各自的开口端一侧都设置有凸出于各自外壁的固定部41，中箔3的固定部和顶箔4的固定部41都穿过波箔2的开口端并且相互贴合；中箔3的固定部和顶箔4的固定部41都嵌合于固定槽12中，锁紧螺钉5旋合于螺钉孔13，并且其顶端与中箔3的固定部41底面相接触将中箔3和顶箔4的固定部41压紧在固定槽12内。此种方式中，波箔2、中箔3和顶箔4的组合件通过锁紧螺钉5顶端压紧在固定槽12内，当波箔2、中箔3或顶箔4发生损坏需要更换时，只需要卸掉锁紧螺钉5将波箔2、中箔3和顶箔4的组合件拆卸即可，而不需要对轴承座进行更换；从而减少了需要更换零件的数量，降低了轴承的维护成本。
锁紧螺钉5的压紧固定方向与空气悬浮径向轴承所支撑的内转轴的转动方向相同。从而使得锁紧螺钉5压紧波箔2、中箔3和顶箔4的组合件时不会受到内转轴提供的相反方向的作用力，有利于保持锁紧螺钉5的紧固效果。
轴承座1端面还固定设置有多个温度传感器14，温度传感器14用于检测空气悬浮径向轴承的表面温度。当轴承表面温度升高时，可通过温度传感器14检测，紧急停机，减少损失。
波箔2设置有多个连接部，多个连接部将多段波箔2连接为单片整体波箔2。从而避免需要将多段波箔2焊接形成单片整体波箔2的情况，简化了焊接工艺，提升了零件的合格率。
顶箔4内表面设置有聚四氟乙烯涂层从而提升轴承的耐高温特点，并且降低了顶箔4表面的摩擦系数。波箔2和中箔3通过激光焊接方式固定连接。
如图4所示的一种氢能源压缩机，该压缩机包括电机筒61、电机定子62、电机轴620、空气悬浮径向轴承63、空气悬浮轴向轴承64和推力盘65；电机定子62固定嵌设在电机筒61内，电机轴620设置有电机转子，电机转子与电机定子62相对齐；两个空气悬浮径向轴承63套设在电机轴620两端，用于对电机轴在径向提供支撑限位；推力盘65固定套设在电机轴620上，空气悬浮轴向轴承64的支撑部位位于推力盘65两侧，用于对推力盘65进行轴向限位。
如图5、图6所示，空气悬浮轴向轴承64包括第一固定板71、第二固定板72、支撑装置73和定位销74；两个支撑装置73相对设置分别位于相对设置的第一固定板71和第二固定板72上；支撑装置73包括底箔731、轴向波箔732和轴向顶箔733，轴向波箔732在轴向位于底箔731和轴向顶箔733之间并且三者固定连接；第一固定板71和第二固定板72上相对设置有销钉孔711，底箔731上设置有轴向贯穿并且与销钉孔711相对齐的多个销钉槽712；定位销74穿过两个支撑装置73的销钉槽712，并且其两端分别嵌入第一固定板71和第二固定板72上的销钉孔711。此种方式中，多个定位销74穿过两个支撑装置73的销钉槽712进而对其径向进行限位，防止电机轴620转动时，支撑装置73跟随电机轴620带动的推力盘65转动；当电机轴620转速达到一定程度，支撑装置73与推力盘65之间形成气膜，从而使其分离，达到悬浮的效果；与螺钉锁紧固定底箔731相比，定位销74限位方式不对底箔731表面提供压紧力，不会导致其被压紧变形；从而不会造成轴承表面在轴向高低不平，进而有利于轴承表面与电机轴620之间形成气模，提高了轴承的使用寿命。
销钉槽712为开口槽。四个销钉槽712两两相对设置，并且两两相对设置的销钉槽712的连线相互垂直从而实现对支撑装置3在上下径向方向和左右径向方向的限位。

Claims (10)

  1. 一种空气悬浮径向轴承，其特征在于，该轴承包括轴承座（1）、波箔（2）、中箔（3）、顶箔（4）和锁紧螺钉（5）；轴承座（1）设置有轴承孔（11）、固定槽（12）和螺钉孔（13），波箔（2）、中箔（3）和顶箔（4）都为开口的圆环形状；波箔（2）固定套设在中箔（3）外壁，中箔（3）套设在顶箔（4）外壁，并且波箔（2）外壁嵌设于轴承孔（11）内；中箔（3）和顶箔（4）在各自的开口端一侧都设置有凸出于各自外壁的固定部（41），中箔（3）的固定部和顶箔（4）的固定部（41）都穿过波箔（2）的开口端并且相互贴合；中箔（3）的固定部和顶箔（4）的固定部（41）都嵌合于固定槽（12）中，锁紧螺钉（5）旋合于螺钉孔（13），并且其顶端与中箔（3）的固定部（41）底面相接触将中箔（3）和顶箔（4）的固定部（41）压紧在固定槽（12）内。
  2. 根据权利要求1所述一种空气悬浮径向轴承，其特征在于，锁紧螺钉（5）的压紧固定方向与空气悬浮径向轴承所支撑的内转轴的转动方向相同。
  3. 根据权利要求1所述一种空气悬浮径向轴承，其特征在于，轴承座（1）端面还固定设置有多个温度传感器（14），温度传感器（14）用于检测空气悬浮径向轴承的表面温度。
  4. 根据权利要求1所述一种空气悬浮径向轴承，其特征在于，波箔（2）设置有多个连接部，多个连接部将多段波箔（2）连接为单片整体波箔（2）。
  5. 根据权利要求1所述一种空气悬浮径向轴承，其特征在于，顶箔（4）内表面设置有聚四氟乙烯涂层。
  6. 根据权利要求1所述一种空气悬浮径向轴承，其特征在于，波箔（2）和中箔（3）通过激光焊接方式固定连接。
  7. 一种氢能源压缩机，其特征在于，该压缩机包括电机筒（61）、电机定子（62）、电机轴（620）、空气悬浮径向轴承（63）、空气悬浮轴向轴承（64）和推力盘（65）；空气悬浮径向轴承（63）如权利要求1所述；电机定子（62）固定嵌设在电机筒（61）内，电机轴（620）设置有电机转子，电机转子与电机定子（62）相对齐；两个空气悬浮径向轴承（63）套设在电机轴（620）两端，用于对电机轴在径向提供支撑限位；推力盘（65）固定套设在电机轴（620）上，空气悬浮轴向轴承（64）的支撑部位位于推力盘（65）两侧，用于对推力盘（65）进行轴向限位。
  8. 根据权利要求7所述一种氢能源压缩机，其特征在于，空气悬浮轴向轴承（64）包括第一固定板（71）、第二固定板（72）、支撑装置（73）和定位销（74）；两个支撑装置（73）相对设置分别位于相对设置的第一固定板（71）和第二固定板（72）上；支撑装置（73）包括底箔（731）、轴向波箔（732）和轴向顶箔（733），轴向波箔（732）在轴向位于底箔（731）和轴向顶箔（733）之间并且三者固定连接；第一固定板（71）和第二固定板（72）上相对设置有销钉孔（711），底箔（731）上设置有轴向贯穿并且与销钉孔（711）相对齐的多个销钉槽（712）；定位销（74）穿过两个支撑装置（73）的销钉槽（712），并且其两端分别嵌入第一固定板（71）和第二固定板（72）上的销钉孔（711）。
  9. 根据权利要求8所述一种氢能源压缩机，其特征在于，销钉槽（712）为开口槽。
  10. 根据权利要求8所述一种氢能源压缩机，其特征在于，四个销钉槽（712）两两相对设置，并且两两相对设置的销钉槽（712）的连线相互垂直。
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