CN111623038A - 一种超高精度静压轴承 - Google Patents

一种超高精度静压轴承 Download PDF

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CN111623038A
CN111623038A CN202010640429.2A CN202010640429A CN111623038A CN 111623038 A CN111623038 A CN 111623038A CN 202010640429 A CN202010640429 A CN 202010640429A CN 111623038 A CN111623038 A CN 111623038A
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hydrostatic bearing
sleeve
transmission
shaft
hydrostatic
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CN111623038B (zh
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姜润启
宋景华
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Deben Hengjia Jingji Kunshan Co ltd
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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
    • 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
    • F16C32/0629—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 liquid cushion, e.g. oil cushion
    • F16C32/064—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 liquid cushion, e.g. oil cushion the liquid being supplied under pressure
    • 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
    • F16C17/08—Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep 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
    • F16C21/00—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
    • 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
    • F16C32/0629—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 liquid cushion, e.g. oil cushion
    • F16C32/064—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 liquid cushion, e.g. oil cushion the liquid being supplied under pressure
    • F16C32/0651—Details of the bearing area per se
    • F16C32/0655—Details of the bearing area per se of supply openings
    • 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
    • F16C32/0662—Details of hydrostatic bearings independent of fluid supply or direction of load
    • F16C32/0677—Details of hydrostatic bearings independent of fluid supply or direction of load of elastic or yielding bearings or bearing supports
    • 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
    • F16C32/0696—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for both radial and axial load
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/08—Attachment of brasses, bushes or linings to the bearing housing
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • F16C33/122—Multilayer structures of sleeves, washers or liners
    • F16C33/125—Details of bearing layers, i.e. the lining
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/0018—Shaft assemblies for gearings
    • F16H57/0031—Shaft assemblies for gearings with gearing elements rotatable supported on the shaft
    • 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
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/20—Application independent of particular apparatuses related to type of movement
    • F16C2300/22—High-speed rotation
    • 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
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/39—General buildup of machine tools, e.g. spindles, slides, actuators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

本发明公开了一种超高精度静压轴承，具有静压轴承箱，所述静压轴承箱内设置有两端延伸在其外部的静压轴承轴，静压轴承轴的中段外部设置有轴向止推装置，轴向止推装置左右两侧轴向设置有合金套，所述静压轴承轴左端外侧的部位自左向右依次套接有传动尾部支架和传动间隙支架，传动间隙支架外部套接有传动轴承，所述传动轴承的外部套接有传动轮，所述传动轮的外周设置有皮带槽，其左端面与传动尾部支架的右端面固定连接。这种超高精度静压轴承装配精度高，既保证了刚性又使其具有弹性，进而保证了油温升高时的精度，表面硬度极高，不易发生变形，具有使用寿命长、轴向推精度高、不易磨损的特点，精度可达0.2u米，转速可达1万转/分钟。

Description

一种超高精度静压轴承
技术领域
本发明涉及静压轴承领域，尤其涉及一种超高精度静压轴承。
背景技术
静压轴承是滑动轴承的一种，是利用压力泵将压力润滑剂强行泵入轴承和轴之间的微小间隙的滑动轴承。其主要用于经常需要在低速运行而又要求承载能力高、旋转要求精度高、高转速的领域，如各种重型机床，以及高精度的机床。
目前，市场上的静压轴承具体由轴承箱、轴承轴、轴承套等组成，通过轴承套进油产生静压压力从而实现轴承运动。现有的技术轴承轴轴向无止推装置或者轴承轴是锥度轴，虽然在轴向止推有一定作用，但无法从根本解决轴向窜动问题。另外，目前市场上的静压轴承套采用的是钢加工件或者是铸铁件，虽然有刚性但缺少弹性，导致油温变化时旋转精度会发生变化，这样的静压轴承相对寿命短，精度不高，承载力低。
发明内容
本发明所要解决的技术问题是，提供一种精度及承载力高，同时能够根本解决轴承轴轴向窜动问题的超高精度静压轴承。
为了解决上述技术问题，本发明是通过以下技术方案实现的：一种超高精度静压轴承，具有静压轴承箱，所述静压轴承箱内设置有两端延伸在其左右两端外部的静压轴承轴，所述静压轴承轴的中段外部设置有与其一体成型的轴向止推装置，轴向止推装置左右两侧轴向设置有合金套，所述合金套固定连接在静压轴承箱内，其端部位于所述静压轴承箱的外侧并通过螺栓与静压轴承箱固定连接；所述静压轴承轴上延伸在静压轴承箱左端外侧的部位自左向右依次套接有传动尾部支架和传动间隙支架，所述传动尾部支架与静压轴承轴刚性连接，所述传动间隙支架与静压轴承轴间隙配合，传动间隙支架的右端套接在静压轴承轴上左侧合金套的左端外部，且该传动间隙支架的右端面与静压轴承箱通过螺栓固定连接，其外部套接有传动轴承，所述传动轴承的外部套接有与其相互配合的传动轮，所述传动轮的外周设置有皮带槽，其左端面通过螺栓与传动尾部支架的右端面固定连接。
作为优选，所述合金套末端与静压轴承轴的配合处之间设置有密封环，所述密封环通过套接在其和静压轴承轴外部的密封套限位固定。
作为优选，所述密封套的端面中心设置有与密封环外部轮廓套接配合的密封孔以及与静压轴承轴外部套接配合的轴接孔，所述轴接孔与密封孔同心设置且相互连通；所述密封套外周靠近末端的位置设置有限位翻边，该限位翻边上设置有左右连通的装配孔，所述密封套通过螺栓穿过装配孔固定连接在合金套上。
作为优选，所述密封套外周靠近限位翻边处的部位设置有环形密封槽，所述密封槽内设置有与其相互配合的密封圈。
作为优选，所述静压轴承箱右侧面与静压轴承轴上位于右方的合金套之间设置有调整垫。
作为优选，所述合金套由外套和设置在外套内的内套组成；所述外套的端部位于静压轴承箱外侧，并通过螺栓固定在静压轴承箱上；所述内套为铜套，其套接在静压轴承轴外部，所述内套的末端延伸并向外周张开卡接在外套的末端外侧，内套的末端端面与静压轴承轴上的轴向止推装置侧面对应，且该内套的末端端面设置有环形静压槽，内套上位于外套外侧的部位其外周面上设置有与内套内部连通的进油孔。
作为优选，所述内套与静压轴承轴以及轴向止推装置之间为间隙配合。
作为优选，所述静压轴承箱与合金套和传动间隙支架的连接处之间为密封连接。
与现有技术相比，本发明的有益之处是：这种超高精度静压轴承装配精度高，既保证了刚性又使其具有弹性，进而保证了油温升高时的精度，表面硬度极高，不易发生变形，具有使用寿命长、轴向推精度高、不易磨损的特点，精度可达0.2u米，转速可达1万转/分钟。
附图说明
下面结合附图对本发明进一步说明。
图1是本发明一种超高精度静压轴承内部结构剖视图；
图2是本发明一种超高精度静压轴承中密封套结构剖视图。
图中：1、静压轴承轴；2、合金套；21、外套；22、内套；23、进由孔；24、静压槽；3、静压轴承箱；4、传动间隙支架；5、传动尾部支架；6、传动轮；7、传动轴承；8、调整垫；9、密封环；10、密封套；101、轴接孔；102、密封孔；103、定位孔；104、密封槽；11、轴向止推装置；12、密封圈。
具体实施方式
下面结合附图及具体实施方式对本发明进行详细描述：
图1所示一种超高精度静压轴承，具有静压轴承箱3，所述静压轴承箱3采用一次性铸造而成，静压轴承箱3内设置有两端延伸在其左右两端外部的静压轴承轴1，所述静压轴承轴1采用铬钼钢高精度加工而成，并对表面进行氮化处理，使表面硬度极高，静压轴承轴1的中段外部设置有与其一体成型的轴向止推装置11，轴向止推装置11左右两侧轴向设置有合金套2，所述合金套2固定连接在静压轴承箱3内，其端部位于所述静压轴承箱3的外侧并通过螺栓与静压轴承箱3固定连接；所述静压轴承轴1上延伸在静压轴承箱3左端外侧的部位自左向右依次套接有传动尾部支架5和传动间隙支架4，所述传动尾部支架5与静压轴承轴1刚性连接，所述传动间隙支架4与静压轴承轴1间隙配合，传动间隙支架4的右端套接在静压轴承轴1上左侧合金套2的左端外部，且该传动间隙支架4的右端面与静压轴承箱3通过螺栓固定连接，其外部套接有传动轴承7，所述传动轴承7的外部套接有与其相互配合的传动轮6，所述传动轮4的外周设置有皮带槽，其左端面通过螺栓与传动尾部支架5的右端面固定连接。
为了保证合金套2与静压轴承轴1之间的密封性，防止油液渗出，所述合金套2末端与静压轴承轴1的配合处之间设置有密封环9，所述密封环9通过套接在其和静压轴承轴1外部的密封套10限位固定。
如图2所示，所述密封套10的端面中心设置有与密封环9外部轮廓套接配合的密封孔102以及与静压轴承轴1外部套接配合的轴接孔101，所述轴接孔101与密封孔102同心设置且相互连通；所述密封套10外周靠近末端的位置设置有限位翻边，该限位翻边上设置有左右连通的装配孔103，所述密封套10通过螺栓穿过装配孔103固定连接在合金套2上。
为了保证密封套10与合金套2之间的密封性，所述密封套10外周靠近限位翻边处的部位设置有环形密封槽104，所述密封槽104内设置有与其相互配合的密封圈12。
为了可以根据静压轴承箱3的大小保证其与合金套2之间的贴合度及密封性，所述静压轴承箱3右侧面与静压轴承轴1上位于右方的合金套2之间设置有调整垫8。
为了保证合金套2的刚性又使其具有弹性，进而保证油温升高时的精度，所述合金套2由外套21和设置在外套21内的内套22组成，所述内套22为铜套，外套21和内套22采用铸铁件二次离心铸铜的方式一体成型；所述外套21的端部位于静压轴承箱3外侧，并通过螺栓固定在静压轴承箱3上；所述内套22套接在静压轴承轴1外部，所述内套22的末端延伸并向外周张开卡接在外套21的末端外侧，内套22的末端端面与静压轴承轴1上的轴向止推装置11侧面对应，且该内套22的末端端面设置有环形静压槽24，内套22上位于外套21外侧的部位其外周面上设置有与内套22内部连通的进油孔23。
为了保证油液在内套2及静压轴承轴1之间形成油膜，便于静压轴承轴1的转动，且互不干涉，所述内套22与静压轴承轴1以及轴向止推装置11之间为间隙配合。
为了防止静压轴承箱3内油液渗出，所述静压轴承箱3与合金套2和传动间隙支架4的连接处之间为密封连接。
其具体工作方式如下：设置在静压轴承箱3外部的供油系统穿过静压轴承箱3与进油孔23连接，供油系统通过进油孔23给内套22和静压轴承轴1之间供油，进入静压轴承轴1外部的油液通过间隙渗入静压槽24内，使内套22与轴向止推装置11之间以及内套22与静压轴承轴1之间的间隙形成油膜，同时油液会通过内套22与轴向止推装置11之间的间隙流入静压轴承箱3内，并通过供油系统抽出，而静压轴承轴1与内套22之间油膜同时通过密封环9密封，防止从端部渗出；工作时，外部电机通过皮带与传动轮6外部的皮带槽连接，电机通过皮带带动传动轮6转动，传动轮6在传动轴承7的外圈转动，而与传动轴承7连接在一起的传动间隙支架4位置固定，传动轮6带动与其连接的传动尾部支架5转动，传动尾部支架5带动静压轴承轴1转动，实现静压轴承轴1运转工作，而轴向止推装置11与合金套2的配合可以有效实现静压轴承轴1的轴向窜动，静压轴承轴1由于与内套22之间因油膜存在而避免摩擦，即使油膜温度升高，合金套2内的内套22因其质地具有弹性因此不易因油温升高而变形，保证静压轴承轴1运转的稳定及精度。
这种超高精度静压轴承装配精度高，既保证了刚性又使其具有弹性，进而保证了油温升高时的精度，表面硬度极高，不易发生变形，具有使用寿命长、轴向推精度高、不易磨损的特点，精度可达0.2u米，转速可达1万转/分钟。
需要强调的是：以上仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，凡是依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明技术方案的范围内。

Claims (8)

1.一种超高精度静压轴承，具有静压轴承箱（3），所述静压轴承箱（3）内设置有两端延伸在其左右两端外部的静压轴承轴（1），其特征在于：所述静压轴承轴（1）的中段外部设置有与其一体成型的轴向止推装置（11），轴向止推装置（11）左右两侧轴向有合金套（2），所述合金套（2）固定连接在静压轴承箱（3）内，其端部位于所述静压轴承箱（3）的外侧并通过螺栓与静压轴承箱（3）固定连接；所述静压轴承轴（1）上延伸在静压轴承箱（3）左端外侧的部位自左向右依次套接有传动尾部支架（5）和传动间隙支架（4），所述传动尾部支架（5）与静压轴承轴（1）刚性连接，所述传动间隙支架（4）与静压轴承轴（1）间隙配合，传动间隙支架（4）的右端套接在静压轴承轴（1）上左侧合金套（2）的左端外部，且该传动间隙支架（4）的右端面与静压轴承箱（3）通过螺栓固定连接，其外部套接有传动轴承（7），所述传动轴承（7）的外部套接有与其相互配合的传动轮（6），所述传动轮（4）的外周设置有皮带槽，其左端面通过螺栓与传动尾部支架（5）的右端面固定连接。
2.根据权利要求1所述的一种超高精度静压轴承，其特征在于：所述合金套（2）末端与静压轴承轴（1）的配合处之间设置有密封环（9），所述密封环（9）通过套接在其和静压轴承轴（1）外部的密封套（10）限位固定。
3.根据权利要求2所述的一种超高精度静压轴承，其特征在于：所述密封套（10）的端面中心设置有与密封环（9）外部轮廓套接配合的密封孔（102）以及与静压轴承轴（1）外部套接配合的轴接孔（101），所述轴接孔（101）与密封孔（102）同心设置且相互连通；所述密封套（10）外周靠近末端的位置设置有限位翻边，该限位翻边上设置有左右连通的装配孔（103），所述密封套（10）通过螺栓穿过装配孔（103）固定连接在合金套（2）上。
4.根据权利要求3所述的一种超高精度静压轴承，其特征在于：所述密封套（10）外周靠近限位翻边处的部位设置有环形密封槽（104），所述密封槽（104）内设置有与其相互配合的密封圈（12）。
5.根据权利要求1所述的一种超高精度静压轴承，其特征在于：所述静压轴承箱（3）右侧面与静压轴承轴（1）上位于右方的合金套（2）之间设置有调整垫（8）。
6.根据权利要求1所述的一种超高精度静压轴承，其特征在于：所述合金套（2）由外套（21）和设置在外套（21）内的内套（22）组成；所述外套（21）的端部位于静压轴承箱（3）外侧，并通过螺栓固定在静压轴承箱（3）上；所述内套（22）为铜套，其套接在静压轴承轴（1）外部，所述内套（22）的末端延伸并向外周张开卡接在外套（21）的末端外侧，内套（22）的末端端面与静压轴承轴（1）上的轴向止推装置（11）侧面对应，且该内套（22）的末端端面设置有环形静压槽（24），内套（22）上位于外套（21）外侧的部位其外周面上设置有与内套（22）内部连通的进油孔（23）。
7.根据权利要求6所述的一种超高精度静压轴承，其特征在于：所述内套（22）与静压轴承轴（1）以及轴向止推装置（11）之间为间隙配合。
8.根据权利要求6所述的一种超高精度静压轴承，其特征在于：所述静压轴承箱（3）与合金套（2）和传动间隙支架（4）的连接处之间为密封连接。
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