CN115698559A - 用于液体喷射切割系统的高压密封件 - Google Patents
用于液体喷射切割系统的高压密封件 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F3/00—Severing by means other than cutting; Apparatus therefor
- B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/181—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings for plastic packings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/10—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in the form of a fine jet, e.g. for use in wind-screen washers
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- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/02—Packing the free space between cylinders and pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
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- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
- F04B53/164—Stoffing boxes
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/26—Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings
- F16J15/28—Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings with sealing rings made of metal
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/56—Other sealings for reciprocating rods
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Abstract
密封组件可以包括具有第一端部分(344)和第二端部分(354)的环形密封件(334)。第二端部分可以包括第一环形面(356)，第一锥形部分(358)，和径向内表面(346)，所述径向内表面被配置成密封柱塞的外表面。密封组件可以包括具有第一端部分(364)和第二端部分(366)的支撑环(336)，该第一端部分具有第二环形面(365)和第二锥形部分(367)。密封组件可以包括被安置于环形密封件和环形支撑环之间的环形箍环(338)，环形箍环具有被配置成配合环形密封件的第一锥形表面(374)和被配置成配合环形支撑环的第二锥形表面(376)。第二锥形表面与环形箍环的纵向轴线之间的角度可以在50度和80度之间。
Description
相关申请交叉引用
本申请要求于2020年3月24日提交的，标题为用于液体喷射切割系统的高压密封件的美国临时申请No.62/994,156的优先权，并通过引用其整体并入本文。
技术领域
本公开一般地涉及用于液体喷射切割系统的高压密封件。
背景技术
液体喷射切割系统的泵典型地包括动态密封组件以密封柱塞和气缸之间的间隙并允许柱塞往复运动。在液体喷射切割系统领域，使用超高分子量聚乙烯(以下称为UHMWPE)密封件，其上适配O形环，以实现间隙的密封是常见的。这种UHMWPE密封件典型地抵靠由紧贴柱塞的支撑环在气缸中生成的高压支撑。液体喷射切割泵的两个常见故障原因包括UHMWPE材料的挤压超过支撑环的内径(例如，支撑环和柱塞之间)，以及UHMWPE材料的挤压超过支撑环的外径(例如，在支撑环和气缸之间)。
附图说明
图1是根据本技术的实施例配置的液体加压组件的等距视图。
图2是图1的液体加压组件的等距侧横截面视图。
图3是图2的液体加压组件的一部分的放大的侧横截面视图，图2示出了根据本技术的实施例配置的密封组件。
图4是根据本技术的实施例配置的图3的密封组件的箍环的进一步放大的侧横截面视图。
具体实施方式
以下公开描述了与液体喷射切割系统一起使用的密封组件的多种实施例。这些密封组件可被配置为在高压环境中操作(例如，压力超过40,000psi并达到120,000psi，和/或在20,000和100,000psi之间)。密封组件可以包括环形密封件，支撑环，和被安置于环形密封件和支撑环之间的箍环。箍环可以具有三角形横截面，其中第一和第二倾斜表面(例如锥形表面)分别与环形密封件和支撑环的倾斜面(例如锥形表面)相对。第一倾斜表面和第二倾斜表面之间的角度可以在50°和80°之间(例如，大约60°)。在一些实施例中，第二倾斜表面与密封组件的纵向轴线之间的角度在50°和80°之间(例如，大约60°)。
在图中，相同的附图标记表示相同的或至少大致相似的元件。为了便于讨论任何特定元件，任何附图标记的最高有效位数字指的是首次介绍该元件的图。例如，气缸222是首次参考图2进行介绍和讨论的。
图1是根据本技术的实施例配置的液体加压组件100的等距视图。液体加压组件100可以包括气缸组件102。气缸组件102可以被配置成接收柱塞104的至少一部分，柱塞104被配置成在气缸组件102内往复运动并经由入口/出口端部分106对液体加压以输出到液体喷射切割头组件(未示出)。柱塞104可以被通过动力组件(未示出)往复运动，该动力组件被可操作地耦合到液体加压组件100的动态端部分108。在一些实施例中，动力组件可以包括线性增压泵的部件，例如被可操作地包含在液压缸内的活塞，该液压缸以常规方式被固定地附接到加压组件100。在其他实施例中，动力组件可以包括旋转直接驱动泵的部件，例如曲轴和相关联的连杆，连杆被包含在曲轴箱内，曲轴箱以常规方式被固定地附接到加压组件100。在这样的实施例中，动力组件将往复力施加到柱塞104的近端部分105，在一些实施例中，柱塞104延伸到液体加压组件100的外部。气缸组件102可以被捕获在两个端盖或其他保持结构之间；一个端盖110被安置于入口/出口端部分106处或附近，而另一端盖112被安置于动态端部分108处或附近。端盖110，112可经由一个或多个螺栓114或其他紧固件或连接装置彼此被固定连接。在操作中，液体喷射加压组件可以被配置为经由入口115接收低压液体，对低压液体加压，并经由出口117将高压液体输出到液体喷射组件。
图2是根据本技术的实施例配置的图1的液体加压组件100的等距侧横截面视图。液体加压组件100可以包括低压液体室218，其被配置为经由入口115从液体源(未示出)接收低压液体。在操作中，来自低压液体室218的液体经由柱塞104远离入口/出口端部分106的移动被吸入到高压液体室220中。例如，低压液体可以通过止回阀组件224被吸入到在止回阀组件224和柱塞104的远端225之间的气缸222内的高压液体室220中。柱塞104然后往复运动以压缩高压液体室220内的液体，然后驱动高压液体向外通过止回阀组件224和经由出口117前进到液体喷射切割头组件。
当柱塞104在气缸222内往复运动时，气缸组件102可以包括围绕柱塞104的至少一部分的间隔环228(例如，套筒)。在一些实施例中，间隔环228的尺寸(例如，经由间隔环228的内径和外径)被设置成在操作期间保持不与柱塞104接触。在其他实施例中，间隔环228可以被配置成减少柱塞104的摆动(tilting)和/或其他非轴向运动。气缸组件102还可以包括密封组件230，该密封组件230被可操作地安置在邻近动态端部分108处并且与止挡阀组件224相对。密封组件230可以被配置成减少或消除高压流体通过气缸222的内侧壁229和柱塞104的外侧壁231之间的空间的泄漏。在一些实施例中，密封组件230被至少部分地安置在柱塞104和气缸222之间的空间内，在间隔环228的近端部分237和动态端部分108上的端盖112之间的气缸222的一部分中。密封组件230可以被配置为在高压环境中操作(例如，压力超过40,000psi并达到120,000psi，和/或介于20,000和100,000psi之间)。液体加压组件100还可以包括在动态端108上的端盖112内部的套箍232(例如，密封载体或密封壳体)。套箍232的至少一部分(例如，环形法兰部分233)可以被压缩在气缸222的近端部分235和端盖112之间。在一些实施例中，套箍232可以在柱塞104和端盖112之间形成密封件并且可以邻接密封组件230。例如，套箍232可以承载被配置为在端盖112和柱塞104之间形成密封件的一个或多个O形环，垫圈，或其他弹性体的，柔性的，和/或弹性的结构。
图3是示出根据本技术的实施例配置的密封组件230的放大侧横截面视图。密封组件230可以被安置于气缸222的内侧壁229和柱塞104的外侧壁231之间的环形空间中，并被配置为抑制或防止高压液体经由气缸222逸出高压液体室220。在所示的实施例中，密封组件230包括环形密封件334(例如，圆形或环形密封件)，被安置在环形密封件334和套箍232或在动态端部分108的端盖之间的支撑环336，以及被安置在环形密封件334和支撑环336之间的箍环338。在一些实施例中，密封组件230还可以包括被安置在和/或靠在凹槽342，通道，台阶，或环形密封件334的其他特征的垫圈340(例如，O形环)。垫圈340可以被配置成形成抑制或防止高压流体从环形密封件334和气缸222的内侧壁229之间通过的密封件。本文所述的密封组件230的一个或多个部件可以是环形的(例如，圆形)并且当在平行于柱塞104的纵向轴线345延伸的平面中观察时具有恒定的横截面形状。此外，在所示实施例中，每个上述密封组件230的部件彼此同轴并且与柱塞104同轴对准(例如，部件的纵向轴线彼此一致并且与柱塞304的纵向轴线345一致)。
环形密封件334可以由弹性的，弹性体的，和/或柔性的材料构成。例如，在一些实施例中，环形密封件334可以由UHMWPE构成。在其他实施例中，环形密封件可以由本领域已知的其他合适材料构成，包括例如橡胶，特氟隆等。密封件具有至少部分暴露于高压液体室220的第一端部分344。在一些实施例中，第一端部分344包括是平面的和/或垂直于柱塞104的纵向轴线345的环形表面。环形密封件334的内表面346可以接触柱塞104的外侧壁表面231，且环形密封件334的外表面350可以接触气缸222的内侧壁229。环形密封件334具有与第一端部分344相对的第二端部分354。环形密封件334的第二端部分354可以包括第一表面356(例如，环形面)和从第一表面356径向向外延伸的第二表面358。在一些实施例中，第二端部分354的第一表面356是平面的和/或垂直于柱塞104的纵向轴线345。第二表面358可以是锥形的，使得第二表面358的直径在远离液体加压组件100的动态端部分108的方向上增加。在一些实施例中，第二表面358可以具有恒定锥度(例如，它可以是圆锥形或截头圆锥形)或非恒定锥度(例如，当在柱塞104的纵向轴线345所在的平面中观察时为凹形或凸形)。在一些实施例中，第二表面358从第一表面356延伸到气缸222的内侧壁229。
支撑环336可以被安置在液体加压组件100的动态端108处的环形密封件334和在液体加压组件100的动态端108处的套箍232/端盖112之间。支撑环336的外表面360或其一部分可以接触气缸222的内壁229。支撑环336的内表面362或其一部分可以接触柱塞104的外表面231。支撑环336可以由青铜合金或其他适合于抵靠柱塞104承受，同时允许柱塞104往复运动的材料构成。
支撑环336可以具有面向环形密封件334的第一端部分364。在一些实施例中，支撑环336的第一端部分364是环形密封件334的第二端部分354的镜像(例如，跨垂直于柱塞104的纵向轴线345的平面)。例如，支撑环336的第一端部分364可以包括面向环形密封件334的第二端部分354的第一表面356的第一表面365。支撑环336的第一端部分364的第一表面365可以与环形密封件334的第二端部分的第一表面356相同或基本相同。支撑环336的第一端部分364可以包括在与环形密封件334的第二端部分354的第二表面358相对的方向上渐缩的第二表面367。支撑环336的第一端部分364的第二表面367可以具有恒定的锥度(例如，它可以是圆锥形或截头圆锥形)或非恒定的锥度(例如，当在柱塞104的纵向轴线345所在的平面中观察时为凹形或凸形)。在一些实施例中，第二表面367从第一表面365延伸到气缸222的内壁229。
支撑环336的与第一端部分相对的第二端部分366可以接触，邻接，或以其他方式配合液体加压组件100的动态端108的套箍232/端盖112。在一些实施例中，支撑环336的第二端部分366是平的，平面的，和/或垂直于柱塞104的纵向轴线345。支撑环336的第二端部分366可以包括外法兰370，该外法兰370径向向外延伸超过气缸222的内壁229。在一些实施例中，外法兰370是环形的。在一些实施例中，外法兰370包括多个法兰部分，这些法兰部分被沿外法兰370圆周的一个或多个间隙隔开。法兰370可以降低或消除支撑环336从如图3所示的安装位置平移到气缸102中的风险。
继续参考图3，密封组件230包括被安置于气缸222的内壁229，环形密封件334的第二端部分354的第二表面358，和支撑环336的第一端部分364的第二表面367之间的空腔中的箍环338。箍环338的径向厚度R1可以在33％到66％之间，40％到60％之间，45％到55％之间，和/或气缸222的内表面和柱塞104的外表面231之间的径向间距R2的大约50％。
箍环338可以由具有足够强度和延展性以承受由力施加在密封组件230上的载荷的材料构成。例如，在一些实施例中，箍环338可以由铝青铜合金构成，铜合金，不锈钢，黄铜等，和/或一些其他材料或材料组合。
当在柱塞104的纵向轴线345所在的平面中观察时，箍环338可以具有大致三角形(例如，等腰三角形，直角三角形，等边三角形等)的横截面。箍环338的第一表面374可以面对环形密封件334的第二端部分354的第二表面358。箍环338的第二表面376可以面对环形密封件336的第一端部分364的第二表面367。箍环338的第三表面378(例如，外表面)可以面对并接触气缸222的内壁229。
箍环338的第一和第二表面374，376可以分别平行于或基本上平行于环形密封件334的第二端部分354和支撑环336的第一端部分364的第二表面358，367。在一些实施例中，箍环338的第一和第二表面374，376与环形密封件334和支撑环336的第二表面358，367在5°的误差范围内平行。环形密封件334的第二端部分354的第二表面358和柱塞104的纵向轴线345之间的角度A1可以是斜的。在一些实施例中，角度A1在45°和90°之间，50°和80°之间，和/或55°和65°之间。在一些实施例中，环形密封件334的第二端部分354的第二表面358与柱塞104的纵向轴线345之间的角度A1大约为60°。在一些实施例中，环形密封件334的第二端部分354的第二表面358从气缸222的内壁229延伸，使得第二表面358具有大于气缸222的内表面和柱塞104的外表面231之间的径向间距R2的50％的径向厚度。例如，在第二表面358和纵向轴线345之间的角度A1大于60°的实施例中，第二表面358可以具有比图3所示的径向厚度更高的径向厚度。
在一些实施例中，支撑环336的第一端部分364的第二表面367与柱塞104的纵向轴线345之间的角度A2等于或基本等于环形密封件334的第二端部分354的第二表面358和柱塞104的纵向轴线345之间的角度A1。在一些实施例中，第二表面358，367之间的角度在50°和80°之间，58°和64°之间，以及/或大约60°。
图4示出了箍环338和以及环形密封件334和支撑环336的相邻面的特写横截面视图。在操作中，高压水或高压液体室220中的其他流体在环形密封件334的第一端部分344上施以轴向力480。该轴向力480的一部分被转变成由环形密封件334的第二端部分354的第二表面358施以箍环338的第一表面374上的第一法向力482。第一法向力482的径向部分484将箍环338推靠在气缸222的内壁229上至扩张配置，以跨该接口支撑环形密封件234，以抑制或防止高压流体从气缸222和密封组件230之间泄漏，并且以抑制或防止环形密封件334从箍环338和气缸222的内壁229之间挤压。第一法向力482轴向分量486将环箍338朝向支撑环336推动。为了保持环箍338处于静态平衡(例如，根据牛顿第二定律)，支撑环336在环箍338上施以第二法向力488。更具体地，第二法向力由支撑环336的第一端部分364的第二表面367施加到箍环338的第二表面376上。第二法向力488的轴向分量490与由环形密封件334在箍环338上施以的第一法向力482的轴向分量486大小相等或基本相等且方向相反。第二法向力488的径向分量492在箍环338上提供额外的向外力以将箍环338推靠在气缸222的内壁229上。此外，根据牛顿第三定律，箍环338在支撑环336上施以的法向力494与支撑环336在环箍338上施以的力488大小相等且方向相反。由环箍338的第二表面在支撑环336的第一端部分364的第二表面367上施以的该第三法向力494具有径向分量496，该径向分量496将支撑环336的第一端部分364推靠在柱塞104上至压缩配置以跨该接口支撑环形密封件334，从而抑制或防止高压液体从柱塞104和密封组件230之间泄漏，并抑制或防止环形密封件334从支撑环336和柱塞104之间挤压。优选地，箍环338的第一和第二表面374，376(以及环形密封件334和支撑环336的相对的第二表面358，367)的角度A1，A2(图3)相同或基本相同以降低密封组件230中力不平衡的风险。
当高压流体施加在环形密封件上的力被移除时，环形密封件334，支撑环336，和/或箍环338可以返回(例如，回弹)到图4所示的配置(例如，无应力配置)。这种弹性可以通过避免环形密封件334的不希望的挤压来实现。
如上所述，在没有补救措施的情况下，在许多液体喷射切割系统中使用的环形密封件可以在支撑环和柱塞之间，在环箍和气缸之间，和/或在箍环和支撑环之间挤压。本技术的特征抑制了这种挤压，如下所述。
首先，由支撑环336和环形密封件334两者施加到本技术的箍环338的径向向外的力减少或消除箍环338和气缸222之间的环形密封件334的挤压。另外，由箍环338施加到支撑环336上的径向向内的力减少或消除了支撑环336和柱塞104之间的环形密封件334的挤压。
进一步参考图4，当高压流体未在环形密封件334上施以轴向力时，环形室498或间隙存在于环形密封件334和支撑环336之间。该间隙可以允许在环形密封件334挤压入与支撑环336接触之前，由环箍338施加在支撑环336上的径向向内的力以将支撑环336推靠在柱塞104的外壁上。
在一些实施例中，箍环338的横截面的径向内顶点499(例如，第一和第二表面相交的箍环338的一部分)被安置在环形密封件334和支撑环336中的每一个的第一和第二表面之间的过渡处附近(例如，在第一表面的径向最外边缘的位置处附近)。将环箍338的内顶点499安置在支撑环336的第一端的第一和第二表面之间的过渡处附近可以允许，当高压流体在环形密封件334的第一端上施以轴向力时，在环形密封件334有机会挤压入箍环338和支撑环336之间的空间中之前，环箍338的第二表面376抵靠支撑环336的第二表面367压缩。
环形密封件334和支撑环336的相对端(即，环形密封件334的第二端和支撑环336的第一端)的第一表面356，365的布置也可以减少环形密封件334的挤压机会。更具体地，使用从箍环338径向向内的彼此平行并垂直于密封组件230上的轴向力相对面356，365降低了一个相对的面会从另一个旁滑过的风险。此外，当密封组件230处于无应力配置时(例如，当高压流体未对环形密封件334施加力时)避免环形密封件334和支撑环336之间的任何重叠可以降低环形密封件334和支撑环336的部分在操作期间滑过彼此的风险。
为箍环338的表面选择适合的角度可以对密封组件230的性能产生直接影响。例如，如上所述，箍环338的第一和第二表面374，376优选地是相对于柱塞104的纵向轴线345具有相同或基本相同的角度A1，A2。如果这些角度A1，A2太大，则支撑环336上的径向向内的力可能太小而不能阻止环形密封件334在支撑环336和柱塞104之间挤压。如果角度A1，A2太小，支撑环336可能会抵靠在柱塞104上压缩太紧，并可能损坏柱塞104。因此，使用50°和80°之间的角度是优选的。
箍环338的径向厚度R1(图3)还可以影响环形密封件334的不希望的挤压的可能性和/或箍环338的柔性。如果箍环338的径向厚度R1过大，则由环箍338给予的在支撑环336上的径向力可能经由支撑环336损坏支撑环336和/或柱塞104。如果径向厚度R1太小，则由箍环338施加到支撑环336的径向力可能不足以防止环形密封件334在支撑环336和柱塞104之间的挤压。
下面进一步描述所公开技术的一些示例。
示例1.一种用于与液体喷射切割系统一起使用的密封组件，包括：
环形密封件，其具有——
纵向轴线；
第一端部分；
沿所述纵向轴线与所述第一端部分相对的第二端部分，所述第二端部分具有——
面向远离所述环形密封件的所述第一端部分的第一环形面；和
从所述第一环形面远离所述纵向轴线并朝向所述环形密封件的所述第一端部分延伸的第一锥形部分；和
径向内表面，其被配置成密封所述液体喷射切割系统的柱塞的外表面；
沿所述环形密封件的所述纵向轴线与所述环形密封件同轴的环形支撑环，所述环形支撑环具有——
第一端部分，其具有——
面向所述环形密封件的所述第一环形面的第二环形面；和
从所述第二环形面远离所述纵向轴线并远离所述环形密封件延伸的第二锥形部分；和
沿所述纵向轴线与所述环形支撑环的所述第一端部分相对的第二端部分；和
沿所述环形密封件的所述纵向轴线与所述环形密封件同轴并被安置于所述环形密封件和所述环形支撑环之间的环形箍环，所述环形箍环具有——
第一锥形表面，其被配置成配合所述环形密封件的所述第二端部分的所述第一锥形部分；和
第二锥形表面，其被配置成配合所述环形支撑环的所述第一端部分的所述第二锥形部分；
其中，当在所述环形密封件的所述纵向轴线所在的平面中测量时，所述第二锥形表面与所述环形箍环的所述纵向轴线之间的角度在50度和80度之间。
示例2.根据示例1所述的密封组件，其中所述液体喷射切割系统是水喷射切割系统。
示例3.根据示例1所述的密封组件，其中所述箍环包括铝青铜合金。
示例4.根据示例1所述的密封组件，其中，所述箍环在所述环形密封件的所述纵向轴线所在的剖切面上具有基本上三角形的横截面。
示例5.根据示例1所述的密封组件，其中当垂直于所述环形密封件的所述纵向轴线测量时，所述箍环的径向厚度是所述柱塞的外表面和围绕所述箍环的气缸的内表面之间的径向距离的1/3和2/3之间。
示例6.根据示例5所述的密封组件，其中当垂直于所述环形密封件的所述纵向轴线测量时，所述箍环的所述径向厚度是所述柱塞的所述外表面和围绕所述箍环的所述气缸的所述内表面之间的所述径向距离的1/2。
示例7.根据示例1所述的密封组件，其中所述第一环形面被配置成当轴向力被施加到所述密封组件时接触所述第二环形面。
示例8.根据示例1所述的密封组件，其中所述环形密封件的所述第二端部分是所述环形支撑环的所述第一端部分在跨垂直于所述环形密封件的所述纵向轴线的平面上的镜像。
示例9.根据示例1所述的密封组件，其中当轴向力被施加到所述密封组件时，所述第一环形面的径向最外边缘和所述第二环形面的径向最外边缘都位于所述箍环的顶点处。
示例10.根据示例1所述的密封组件，其中当在所述环形密封件的所述纵向轴线所在的平面中测量时，所述第一锥形部分和所述第二锥形部分之间的角度在58度和64度之间。
示例11.根据示例1所述的密封组件，其中所述环形支撑环在平行于所述环形密封件的所述纵向轴线的方向上不与所述环形密封件重叠。
示例12.根据示例1所述的密封组件，还包括被安置在所述环形密封件和围绕所述环形密封件的气缸之间的垫圈，其中所述垫圈被配置为抑制或防止所述环形密封件和所述气缸之间的流体通道。
示例13.根据示例1所述的密封组件，其中，所述箍环在所述环形密封件的所述纵向轴线所在的剖切面上具有基本上等腰三角形的横截面。
示例14.一种在多个压力循环期间使用密封组件密封液体喷射切割系统的柱塞的方法，所述密封组件具有纵向轴线并且被设置为绕在所述液体喷射切割系统的所述柱塞和气缸之间的所述柱塞，以及与所述液体喷射切割系统的密封壳体邻接的所述密封组件的支撑环，所述方法包括：
平行于所述密封组件的所述纵向轴线的轴向压力施加到所述密封组件的环形密封件上，使得第一法向环形力通过所述环形密封件的环形表面被施加在所述密封组件的箍环的第一表面上，所述箍环的所述第一表面相对于所述纵向轴线成第一斜角；
经由垂直于所述纵向轴线的所述第一法向环形力的径向分量，将所述箍环径向向外推至抵靠所述气缸的扩张配置；
将平行于所述纵向轴线，将所述第一法向环形力的轴向分量作为第二法向环形力经由所述箍环的第二表面传递到所述密封组件的所述支撑环的环形表面，所述箍环的所述第二表面相对于所述纵向轴线成第二斜角；
经由所述第二法向环形力的径向分量将所述支撑环推至抵靠所述柱塞的压缩配置；
使所述第一法向环形力的所述轴向分量与所述第二法向环形力的轴向分量平衡，以绕所述柱塞产生静密封；和
减小所述环形密封件上的轴向压力，从而使所述箍环和所述支撑环分别从所述扩张配置和压缩配置回弹。
示例15.根据示例14所述的方法，其中使所述第一法向环形力的所述轴向分量与所述第二法向环形力的所述轴向分量平衡包括使所述支撑环抵靠所述端盖安置。
示例16.根据示例14所述的方法，其中向所述密封组件的所述环形密封件施加轴向压力包括朝向所述支撑环驱动所述环形密封件，使得所述环形密封件沿着所述支撑环的一部分从所述支撑环的所述环形表面径向向内邻接所述支撑环。
示例17.根据示例14所述的方法，其中所述第一斜角和所述第二斜角都在50度和65度之间。
示例18.根据示例17所述的方法，其中所述第一斜角等于所述第二斜角。
示例19.根据示例14所述的方法，其中当垂直于所述纵向轴线测量时，所述箍环的径向厚度是在所述柱塞的外表面和所述气缸的内表面之间的径向距离的1/3和2/3之间。
示例20.根据示例19所述的方法，其中当垂直于所述纵向轴线测量时，所述箍环的所述径向厚度是所述柱塞的所述外表面和所述气缸的所述内表面之间的所述径向距离的1/2。
示例21.一种在液体喷射切割系统中安装密封组件的方法，所述方法包括：
绕所述液体喷射切割系统的柱塞的近端设置支撑环；
绕所述柱塞的所述近端设置箍环，使得所述箍环的第一倾斜表面接触所述支撑环的截头圆锥形表面；和
绕所述柱塞的所述近端设置密封件，使得所述密封件的截头圆锥形表面接触所述箍环的第二倾斜表面，并且所述箍环被安置于所述密封件的所述截头圆锥形表面和所述支撑环之间；
其中，在所述液体喷射切割系统操作之前，所述支撑环不接触所述密封件。
示例22.根据示例21所述的方法，还包括绕所述密封件的径向向外表面设置O形环。
示例23.根据示例21所述的方法，其中，所述支撑环沿所述柱塞的纵向轴线不与所述密封件重叠。
示例24.根据示例21所述的方法，还包括将所述支撑环抵靠所述液体喷射切割系统的端盖邻接。
示例25.根据示例21所述的方法，其中所述支撑环的所述截头圆锥形表面是所述密封件的所述截头圆锥形表面相对于所述箍环的镜像。
在整个上述描述中对特征，优点，或类似语言的引用并不暗示着可以使用本技术实现的所有特征和优点都应该在或存在于本技术的任何单个实施例中。相反，提及特征和优点的语言被理解为意味着结合实施例描述的特定特征，优点，或特性被包括在本技术的至少一个实施例中。因此，贯穿本说明书的对特征和优点的讨论以及类似的语言可以但不一定指相同的实施例。
如本领域普通技术人员将理解的，本文所述的密封组件的实施例可通过减少或消除环绕箍环和/或环绕支撑环的环形密封件的挤压来提供延长的密封组件寿命。
本技术的示例和实施例的以上详细描述并非旨在穷举或将本技术限制为以上公开的精确形式。尽管以上出于说明性目的描述了该技术的特定示例，但是如相关领域的技术人员将认识到的，在该技术的范围内多种等效修改是可能的。例如，虽然过程以给定顺序呈现，但替代实施方式可以执行具有不同顺序的步骤的例程，并且可以删除，移动，添加，细分，组合，和/或修改一些过程以提供替代或子组合。本文提供的本公开的教导可以被应用于其他系统，不一定是上述系统。可以组合上述多种实施例的元件和动作以提供进一步的实施例。本文中表明的所有专利和申请以及其他参考文献，包括任何可能在随附申请文件中列出的，均通过引用并入本文。如果需要，可以修改本公开的各方面以采用上述多种参考文献的系统，功能，和概念来提供本公开的又一实施例。
一般而言，以下权利要求中使用的术语不应被解释为将本公开限制于说明书中所公开的特定实施例，除非以上详细描述部分明确定义了这些术语。因此，本公开的实际范围不仅包含所公开的实施例，还包括实践或实施本公开的所有等效方式。
根据前述将理解，本技术的特定实施例已在本文中出于说明的目的进行了描述，但可进行多种修改而不背离本技术的多种实施例的精神和范围。此外，虽然以上已经在那些实施例的情境中描述了与本技术的某些实施例相关联的多种优点，但是其他实施例也可以表现出这样的优点，并且并非所有实施例都必须表现出这样的优点以落入本技术的范围内。因此，该技术不受限制，除非由所附权利要求限制。此外，尽管该技术的某些方面在下文以某些权利要求形式呈现，但申请人以任何数量的权利要求形式包括该技术的多个方面。因此，申请人保留在提交本申请后提出附加权利要求的权利，以在本申请或继续申请中提出此类附加权利要求表。
Claims (25)
1.一种用于与液体喷射切割系统一起使用的密封组件，包括：
环形密封件，其具有——
纵向轴线；
第一端部分；
沿所述纵向轴线与所述第一端部分相对的第二端部分，所述第二端部分具有——
面向远离所述环形密封件的所述第一端部分的第一环形面；和
从所述第一环形面远离所述纵向轴线并朝向所述环形密封件的所述第一端部分延伸的第一锥形部分；和
径向内表面，其被配置成密封所述液体喷射切割系统的柱塞的外表面；
沿所述环形密封件的所述纵向轴线与所述环形密封件同轴的环形支撑环，所述环形支撑环具有——
第一端部分，其具有——
面向所述环形密封件的所述第一环形面的第二环形面；和
从所述第二环形面远离所述纵向轴线并远离所述环形密封件延伸的第二锥形部分；和
沿所述纵向轴线与所述环形支撑环的所述第一端部分相对的第二端部分；和
沿所述环形密封件的所述纵向轴线与所述环形密封件同轴并被安置于所述环形密封件和所述环形支撑环之间的环形箍环，所述环形箍环具有-
第一锥形表面，其被配置成配合所述环形密封件的所述第二端部分的所述第一锥形部分；和
第二锥形表面，其被配置成配合所述环形支撑环的所述第一端部分的所述第二锥形部分；
其中，当在所述环形密封件的所述纵向轴线所在的平面中测量时，所述第二锥形表面与所述环形箍环的所述纵向轴线之间的角度在50度和80度之间。
2.根据权利要求1所述的密封组件，其中所述液体喷射切割系统是水喷射切割系统。
3.根据权利要求1所述的密封组件，其中所述箍环包括铝青铜合金。
4.根据权利要求1所述的密封组件，其中，所述箍环在所述环形密封件的所述纵向轴线所在的剖切面上具有基本上三角形的横截面。
5.根据权利要求1所述的密封组件，其中当垂直于所述环形密封件的所述纵向轴线测量时，所述箍环的径向厚度是所述柱塞的外表面和围绕所述箍环的气缸的内表面之间的径向距离的1/3和2/3之间。
6.根据权利要求5所述的密封组件，其中当垂直于所述环形密封件的所述纵向轴线测量时，所述箍环的所述径向厚度是所述柱塞的所述外表面和围绕所述箍环的所述气缸的所述内表面之间的所述径向距离的1/2。
7.根据权利要求1所述的密封组件，其中所述第一环形面被配置成当轴向力被施加到所述密封组件时接触所述第二环形面。
8.根据权利要求1所述的密封组件，其中所述环形密封件的所述第二端部分是所述环形支撑环的所述第一端部分在跨垂直于所述环形密封件的所述纵向轴线的平面上的镜像。
9.根据权利要求1所述的密封组件，其中当轴向力被施加到所述密封组件时，所述第一环形面的径向最外边缘和所述第二环形面的径向最外边缘都位于所述箍环的顶点处。
10.根据权利要求1所述的密封组件，其中当在所述环形密封件的所述纵向轴线所在的平面中测量时，所述第一锥形部分和所述第二锥形部分之间的角度在58度和64度之间。
11.根据权利要求1所述的密封组件，其中所述环形支撑环在平行于所述环形密封件的所述纵向轴线的方向上不与所述环形密封件重叠。
12.根据权利要求1所述的密封组件，还包括被安置在所述环形密封件和围绕所述环形密封件的气缸之间的垫圈，其中所述垫圈被配置为抑制或防止所述环形密封件和所述气缸之间的流体通道。
13.根据权利要求1所述的密封组件，其中，所述箍环在所述环形密封件的所述纵向轴线所在的剖切面上具有基本上等腰三角形的横截面。
14.一种在多个压力循环期间使用密封组件密封液体喷射切割系统的柱塞的方法，所述密封组件具有纵向轴线并且被设置为绕在所述液体喷射切割系统的所述柱塞和气缸之间的所述柱塞，以及与所述液体喷射切割系统的密封壳体邻接的所述密封组件的支撑环，所述方法包括：
平行于所述密封组件的所述纵向轴线的轴向压力施加到所述密封组件的环形密封件上，使得第一法向环形力通过所述环形密封件的环形表面被施加在所述密封组件的箍环的第一表面上，所述箍环的所述第一表面相对于所述纵向轴线成第一斜角；
经由垂直于所述纵向轴线的所述第一法向环形力的径向分量，将所述箍环径向向外推至抵靠所述气缸的扩张配置；
将平行于所述纵向轴线，将所述第一法向环形力的轴向分量作为第二法向环形力经由所述箍环的第二表面传递到所述密封组件的所述支撑环的环形表面，所述箍环的所述第二表面相对于所述纵向轴线成第二斜角；
经由所述第二法向环形力的径向分量将所述支撑环推至抵靠所述柱塞的压缩配置；
使所述第一法向环形力的所述轴向分量与所述第二法向环形力的轴向分量平衡，以绕所述柱塞产生静密封；和
减小所述环形密封件上的轴向压力，从而使所述箍环和所述支撑环分别从所述扩张配置和压缩配置回弹。
15.根据权利要求14所述的方法，其中使所述第一法向环形力的所述轴向分量与所述第二法向环形力的所述轴向分量平衡包括使所述支撑环抵靠所述端盖安置。
16.根据权利要求14所述的方法，其中向所述密封组件的所述环形密封件施加轴向压力包括朝向所述支撑环驱动所述环形密封件，使得所述环形密封件沿着所述支撑环的一部分从所述支撑环的所述环形表面径向向内邻接所述支撑环。
17.根据权利要求14所述的方法，其中所述第一斜角和所述第二斜角都在50度和65度之间。
18.根据权利要求17所述的方法，其中所述第一斜角等于所述第二斜角。
19.根据权利要求14所述的方法，其中当垂直于所述纵向轴线测量时，所述箍环的径向厚度是在所述柱塞的外表面和所述气缸的内表面之间的径向距离的1/3和2/3之间。
20.根据权利要求19所述的方法，其中当垂直于所述纵向轴线测量时，所述箍环的所述径向厚度是所述柱塞的所述外表面和所述气缸的所述内表面之间的所述径向距离的1/2。
21.一种在液体喷射切割系统中安装密封组件的方法，所述方法包括：
绕所述液体喷射切割系统的柱塞的近端设置支撑环；
绕所述柱塞的所述近端设置箍环，使得所述箍环的第一倾斜表面接触所述支撑环的截头圆锥形表面；和
绕所述柱塞的所述近端设置密封件，使得所述密封件的截头圆锥形表面接触所述箍环的第二倾斜表面，并且所述箍环被安置于所述密封件的所述截头圆锥形表面和所述支撑环之间；
其中，在所述液体喷射切割系统操作之前，所述支撑环不接触所述密封件。
22.根据权利要求21所述的方法，还包括绕所述密封件的径向向外表面设置O形环。
23.根据权利要求21所述的方法，其中，所述支撑环沿所述柱塞的纵向轴线不与所述密封件重叠。
24.根据权利要求21所述的方法，还包括将所述支撑环抵靠所述液体喷射切割系统的端盖邻接。
25.根据权利要求21所述的方法，其中所述支撑环的所述截头圆锥形表面是所述密封件的所述截头圆锥形表面相对于所述箍环的镜像。
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2021
- 2021-03-23 CN CN202180037898.8A patent/CN115698559A/zh active Pending
- 2021-03-23 EP EP21719003.2A patent/EP4127527A1/en active Pending
- 2021-03-23 US US17/210,068 patent/US12064893B2/en active Active
- 2021-03-23 WO PCT/US2021/023720 patent/WO2021195106A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP4127527A1 (en) | 2023-02-08 |
| US20210299903A1 (en) | 2021-09-30 |
| US12064893B2 (en) | 2024-08-20 |
| WO2021195106A1 (en) | 2021-09-30 |
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