WO2020173108A1 - 一种高压气密转接装置 - Google Patents

一种高压气密转接装置 Download PDF

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Publication number
WO2020173108A1
WO2020173108A1 PCT/CN2019/112985 CN2019112985W WO2020173108A1 WO 2020173108 A1 WO2020173108 A1 WO 2020173108A1 CN 2019112985 W CN2019112985 W CN 2019112985W WO 2020173108 A1 WO2020173108 A1 WO 2020173108A1
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WO
WIPO (PCT)
Prior art keywords
ring
steel
seal
fixed head
lip
Prior art date
Application number
PCT/CN2019/112985
Other languages
English (en)
French (fr)
Inventor
汪海
Original Assignee
南京苏上涂胶技术有限公司
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Publication of WO2020173108A1 publication Critical patent/WO2020173108A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/32Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3208Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/32Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3232Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/32Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3284Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
    • F16J15/3288Filamentary structures, e.g. brush seals
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/44Free-space packings
    • F16J15/447Labyrinth packings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00Adjustable joints, Joints allowing movement
    • F16L27/08Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe

Definitions

  • the present invention relates to a pneumatic-hydraulic connection technology, which is suitable for occasions where there is axial rotation between two components, and specifically relates to a high-pressure airtight adapter.
  • an adapter device In a pipeline environment that requires frequent assembly, disassembly or maintenance, an adapter device is required to connect two sections of pipelines.
  • the adapter device needs to be flexibly disassembled and assembled, while maintaining air tightness to prevent The liquid or gas in the pipeline flows out, causing serious consequences.
  • a high-pressure airtight adapter device includes four parts: a lower end assembly, an upper end assembly, a rotating assembly, and a sealing assembly.
  • the lower end assembly includes a section of a rotating shaft with external threads and a step at the end, a fixed lock nut threaded on the rotating shaft, and a compression shaft that is compressed and arranged on the step of the rotating shaft set;
  • the upper end assembly includes a fixed head sleeved on the compression shaft sleeve, a section with a smooth surface and a section with an external thread, a centrifugal housing sleeved on the section with a smooth surface on the fixed head, and a thread A limit nut sleeved on a section of the fixed head with external threads, the limit nut contacts and is pressed against the centrifugal housing;
  • the rotating assembly includes a steel ball seat that is rotatably arranged above the compression sleeve, and a plurality of steel balls arranged between the steel ball seat and the compression sleeve; the centrifugal housing is also provided There are a plurality of steel balls of the same size, which are in direct contact with a smooth section of the upper surface of the fixed head;
  • the seal assembly includes a steel ring arranged at the upper end of the steel ball seat, a rotating seal arranged in the steel ring, and a seal seat that is compressed and arranged on the steel ring; the rotating seal
  • the part is an O-ring, and the diameter of the O-ring is equal to the height of the steel ring.
  • the rotary seal is a lip-shaped sealing ring
  • the lip-shaped sealing ring includes a V-shaped housing
  • the V-shaped housing constitutes a lip
  • a coil spring is provided in the lip ;
  • the rotary seal is a labyrinth seal ring
  • the labyrinth seal ring includes an upper ring and a lower ring
  • the upper ring and the lower ring are E-shaped
  • the upper ring and The lower rings are complementarily matched respectively
  • the two sides of the raised part of the lower ring are provided with hard brushes, and the ends of the hard brushes are attached to the two sides of the concave portion of the upper ring, and produce a predetermined angle Deformation;
  • the air generates resistance when passing through the rotating seal, and gradually dissipates energy as the air flows, and the "labyrinth effect" finally produces a sealing effect to prevent the outside world Air enters the inside of the adapter device, and the hard brush is used to elastically connect the upper ring and the lower ring to prevent wear due to direct contact between the upper ring and the lower ring.
  • an internal thread is provided on the inner wall of the end of the fixed head, and a connector is sleeved on the internal thread; the connector is used to connect a pipe.
  • the outer wall of the connector is provided with a notch where it is attached to the fixed head, and a notch is also provided at a predetermined position where the centrifugal housing contacts the fixed head, so A sealing ring is sleeved in the gap; the sealing ring functions as a secondary seal.
  • the present invention relates to a high-pressure airtight adapter device, which utilizes a rotary seal.
  • the rotary seal can be a lip seal ring, an O-ring, or a labyrinth seal ring, so that The adapter device can maintain good air-tightness while being subjected to high pressure; using steel ring, seal seat and rotating The use of seals can make the rotating shaft completely separated from the seal, and realize that the force in other directions will not affect the failure of the seal; the introduction of steel balls and steel ball seats enables the adapter to rotate smoothly under high pressure.
  • FIG. 1 is a schematic diagram of the structure of the utility model.
  • FIG. 2 is a schematic cross-sectional structure diagram of the lip-shaped sealing ring in the second embodiment of the utility model.
  • FIG. 3 is a schematic cross-sectional structure diagram of the labyrinth seal ring in the third embodiment of the utility model.
  • Embodiment One is a liquid crystal [0021] is a liquid crystal [0021] is a liquid crystal [0021] is a liquid crystal [0021] is a liquid crystal [0021] is a liquid crystal [0021] is a liquid crystal [0021] is a liquid crystal [0021] is a liquid crystal [0021] is a liquid crystal [0021] is a liquid crystal [0021] is a liquid crystal [0021]
  • FIG. 1 As shown in Fig. 1, the specific partial details are shown in Figs. 2 and 3:
  • the device which consists of a lower component and an upper component It is composed of four parts, rotating component, and sealing component.
  • the lower end assembly includes a rotating shaft 1, a fixing nut, and a compression sleeve 11.
  • a section of the rotating shaft 1 is provided with an external thread, and the end is provided with a step, and the fixed lock nut 12 is threaded on the On the rotating shaft 1, the pressing shaft sleeve 11 is compressed and arranged on the rotating shaft 1; the upper end assembly includes a fixed head 5, a centrifugal housing 2, and a limit nut 6, and the fixed head 5 is sleeved on the pressure On the tightening shaft sleeve 11, one section has a smooth surface and one section is provided with external threads.
  • the centrifugal housing 2 is sleeved on a section of the fixed head 5 with a smooth upper surface, and the limit nut 6 is threadedly sleeved on the fixed head 5 is provided with a section of external thread, the limit nut 6 is in contact with the centrifugal housing 2 and pressed;
  • the rotating assembly includes a steel ball seat 10 and a plurality of steel balls 3, the steel ball seat 10 is rotatably arranged on the Above the compression shaft sleeve 11, the steel ball 3 is arranged between the steel ball seat 10 and the compression shaft sleeve 11, and a plurality of steel balls 3 of the same size are also provided in the centrifugal housing 2 and are arranged
  • the upper surface of the fixed head 5 is in direct contact with a smooth section;
  • the sealing assembly includes a steel ring 9, a rotating seal 4, and a seal seat 8.
  • the steel ring 9 is arranged on the upper end of the steel ball seat 10, and the rotating seal
  • the member 4 is arranged in the steel ring 9, the seal seat 8 is compressed and arranged on the steel ring 9, the rotary seal 4 is an O-ring 403, and the diameter of the O-ring 403 is
  • the heights of the steel rings 9 are equal, the O-ring 403 can withstand a pressure within 50 megapascals, and the O-ring 403 can be used in a static environment or in a dynamic environment with relative motion.
  • the second embodiment makes changes to the rotary seal 4.
  • the rotary seal 4 is a lip-shaped seal ring 401, the lip-shaped seal ring 401 includes a V-shaped housing 401a, the V-shaped housing 401a constitutes a lip 401c, the lip 401c is provided with a coil spring 401b;
  • the lip 401c deforms under the action of external pressure, so that the upper and lower surfaces of the lip 401c are in close contact with each other, thereby achieving sealing.
  • the external pressure continues to increase, the closer the lip 401c fits, the sealing effect increases.
  • the lip seal ring 401 has the following advantages: 1. When there is relative movement, the friction force caused by the seal should be small and the friction coefficient should be stable. 2. It has good sealing performance within a certain pressure and temperature range, and can automatically improve the degree of sealing with the increase of pressure. 3. Simple structure, convenient use and maintenance, and low cost. 4. Strong anti-corrosion ability, not easy to age, good wear resistance, can automatically compensate to a certain extent after wear, and long working life.
  • the third embodiment makes changes to the rotary seal 4.
  • the rotary seal 4 is The labyrinth seal ring 402, the labyrinth seal ring 402 includes two parts, an upper ring 402a and a lower ring 402c, the upper ring 402a and the lower ring 402c are E-shaped, and the upper ring 402a and the lower ring 402 (: respectively complementary fit, Two sides of the convex portion of the lower ring 402c are provided with hard brushes 402b, and the ends of the hard brushes 402b are attached to both sides of the concave portion of the upper ring 402a and deform at a predetermined angle; When the upper ring 402a and the lower ring 402c are in contact and rubbed for a long time, different degrees of wear will occur, and the hard brush 402b is a solution proposed to deal with this situation.
  • the brush 402b is in contact with the upper ring 402a and generates a predetermined range of deformation. When abrasion occurs, the hard brush 402b will automatically restore the deformation within this range, thereby compensating the range of wear.
  • a hard brush 402b is used to elastically connect the upper ring 402a and the lower ring 402c to prevent wear caused by direct contact between the upper ring 402a and the lower ring 402c.
  • the sealing principle of the "labyrinth effect” is as follows: Fluid passes through the labyrinth to generate resistance
  • the function of reducing the flow rate is called the “labyrinth effect.”
  • hydrodynamic effects including hydraulic friction effects and stream contraction effects
  • thermodynamic effects that is, the gas is compressed or compressed in the maze. Thermal conversion due to expansion
  • ventilation effect etc.
  • the labyrinth effect is a comprehensive reaction of these effects.
  • the fourth embodiment makes specific supplements to the foregoing multiple embodiments, and the specific content is as follows:
  • the fixed head 5 is provided on the inner wall of the end There is an internal thread, and a connector 7 is sleeved on the internal thread; the connector 7 is used to connect a pipe.
  • the outer wall of the connecting head 7 is provided with a gap where it is attached to the fixed head 5, and the predetermined position where the centrifugal housing 2 contacts the fixed head 5 is also provided with a gap, and the gap is sleeved with Sealing ring;
  • the sealing ring plays a role of secondary sealing.
  • the purpose of the present utility model is that the single rotating shaft 1 will not fail or be damaged even if there is a load in other directions, and realize smooth and free rotation under high pressure.
  • the rotary seal 4 may be a lip-shaped seal ring 401,
  • the O-ring 403, or the labyrinth seal ring 402 enables the adapter device to maintain good air tightness while being subjected to high pressure; the use of the steel ring 9, the seal seat 8 and the rotary seal 4 are used in conjunction to make The shaft 1 is completely separated from the seal, so that the force in other directions will not affect the failure of the seal; the steel ball 3 and the steel ball seat are introduced 10. Make the adapter device rotate smoothly under high pressure. This effectively solves the problems of short service life, poor pressure resistance, and weak radial load of the rotary connector 7 in current industrial equipment.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

一种高压气密转接装置,包括下端组件、上端组件、转动组件、以及密封组件四部分。其中,下端组件包括设有台阶的转轴(1),螺纹套设在转轴(1)上的固定锁母(12),以及压紧设置在转轴(1)的台阶上的压紧轴套(11);上端组件包括固定头(5),套设在固定头(5)上的离心外壳(2)和限位螺母(6),限位螺母(6)与离心外壳(2)接触并压紧;转动组件包括转动设置在压紧轴套(11)上方的钢球座(10),以及设置在钢球座(10)与压紧轴套(11)之间的多个钢球(3);密封组件包括设置在钢球座(10)上端的钢环(9),设置在钢环(9)内的旋转密封件(4),以及压紧设置在钢环(9)上的密封件座(8)。该装置用于高压环境下的管道转接,在受到高压时仍能顺畅转动,同时保证优秀的气密性。

Description

一种高压气密转接装置
技术领域
[0001] 本实用新型涉及气动液压的连接技术, 适用于两个零部件之间存在轴向旋转活 动的场合, 具体涉及一种高压气密转接装置。
背景技术
[0002] 在需要经常装拆或维修的管路环境下, 需要一个转接装置起到连接两段管路的 作用, 该转接装置既要灵活拆装, 同时也需要保持气密性, 防止管道内的液体 或气体流出, 造成严重后果。
[0003] 5见有技术中用于连接两根公称直径相同管路的转接装置通常为活接头, 这是一 种标准件, 需要根据实际管路的尺寸选择适配, 这种活接头在受到高压后会产 生形变, 导致密封性能急剧下降, 且随着外部压力的增大, 使得该转接装置很 难顺畅转动。
发明概述
技术问题
[0004] 实用新型目的: 提供一种高压气密转接装置, 解决了现有技术存在的上述问题 问题的解决方案
技术解决方案
[0005] 一种高压气密转接装置, 包括下端组件、 上端组件、 转动组件、 以及密封组件 四部分。
[0006] 其中, 下端组件, 包括一段设有外螺纹、 末端设有台阶的转轴, 螺纹套设在所 述转轴上的固定锁母, 以及压紧设置在所述转轴的台阶上的压紧轴套;
[0007] 上端组件, 包括套设在所述压紧轴套上、 且一段表面光滑、 一段设有外螺纹的 固定头, 套设在所述固定头上表面光滑的一段的离心外壳, 以及螺纹套设在所 述固定头设有外螺纹的一段的限位螺母, 所述限位螺母与所述离心外壳接触并 压紧; [0008] 转动组件, 包括转动设置在所述压紧轴套上方的钢球座, 以及设置在所述钢球 座与压紧轴套之间的多个钢球; 所述离心外壳内也设有多个同尺寸的钢球、 并 与所述固定头上表面光滑的一段直接接触;
[0009] 密封组件, 包括设置在所述钢球座上端的钢环, 设置在所述钢环内的旋转密封 件, 以及压紧设置在所述钢环上的密封件座; 所述旋转密封件为 0型圈, 所述 0 型圈的直径与所述钢环的高度相等。
[0010] 在进一步的实施例中, 所述旋转密封件为唇形密封圈, 所述唇形密封圈包括 V 形外壳, 所述 V形外壳构成唇口, 所述唇口内设有螺旋弹簧; 通过其唇口在外界 压力的作用下变形, 使唇口的上下两个面紧贴, 从而实现密封, 随着外界压力 的不断增大, 唇口贴合越紧密, 密封效果随之增大; 且唇口经过磨损后具有自 动补偿能力。
[0011] 在进一步的实施例中, 所述旋转密封件为迷宫密封环, 所述迷宫密封环包括上 环和下环两部分, 所述上环与下环呈 E形, 所述上环与下环分别互补配合, 所述 下环凸起的部分两侧设有硬质毛刷, 所述硬质毛刷的末端与所述上环凹下部分 的两侧贴合, 并产生预定角度的形变; 通过所述上环与下环之间的相互配合, 使得空气在通过该旋转密封件时产生阻力, 并随着空气的流动逐渐消能, 由“迷 宫效应”最终产生密封效果, 防止外界气体进入转接装置内部, 硬质毛刷用于弹 性连接上环与下环, 防止因上环与下环直接接触导致磨损。
[0012] 在进一步的实施例中, 所述固定头的末端内壁处设有内螺纹, 所述内螺纹上套 设有连接头; 连接头用于连接管道。
[0013] 在进一步的实施例中, 所述连接头的外壁、 且与所述固定头贴合处设有缺口, 所述离心外壳与所述固定头接触的预定位置处也设有缺口, 所述缺口内套设有 密封圈; 所述密封圈起到二级密封的作用。
发明的有益效果
有益效果
[0014] 本实用新型涉及一种高压气密转接装置, 利用旋转密封件, 在作为优选的实施 例中, 该旋转密封件可以为唇形密封圈、 0型圈、 或迷宫密封环, 使得该转接装 置能够在受到高压的同时仍能保持良好的气密性; 利用钢环、 密封件座和旋转 密封件的配合使用, 使转轴完全脱离密封, 实现其它方向的作用力不会影响密 封的失效; 引入钢球和钢球座, 使该转接装置在很高的压力下仍能顺畅转动。 对附图的简要说明
附图说明
[0015] 图 1为本实用新型的结构示意图。
[0016] 图 2为本实用新型实施例二中唇形密封圈的剖面结构示意图。
[0017] 图 3为本实用新型实施例三中迷宫密封环的剖面结构示意图。
[0018] 图中各附图标记为: 转轴 1、 离心外壳 2、 钢球 3、 旋转密封件 4、 唇形密封圈 40 1、 V形外壳 401a、 螺旋弹簧 401b、 唇口 401c、 迷宫密封环 402、 上环 402a、 硬质 毛刷 402b、 下环 402c、 0型圈 403、 固定头 5、 限位螺母 6、 连接头 7、 密封件座 8 、 钢环 9、 钢球座 10、 压紧轴套 11、 固定锁母 12。
发明实施例
本发明的实施方式
[0019] 在下文的描述中, 给出了大量具体的细节以便提供对本实用新型更为彻底的理 解。 然而, 对于本领域技术人员而言显而易见的是, 本实用新型可以无需一个 或多个这些细节而得以实施。 在其他的例子中, 为了避免与本实用新型发生混 淆, 对于本领域公知的一些技术特征未进行描述。
[0020] 在本实用新型的描述中, 需要说明的是, 术语“中心”、 “上”、 “下”、 “左”、 “右 ”、 “竖直”、 “水平”、 “内”、 “外”等指示的方位或位置关系为基于附图所示的方 位或位置关系, 仅是为了便于描述本实用新型和简化描述, 而不是指示或暗示 所指的装置或元件必须具有特定的方位、 以特定的方位构造和操作, 因此不能 理解为对本实用新型的限制。 此外, 术语“第一”、 “第二”、 “第三”仅用于描述目 的, 而不能理解为指示或暗示相对重要性。
[0021] 实施例一:
[0022] 如图 1所示, 具体的局部细节如图 2和图 3所示: 本实用新型涉及一种高压气密 转接装置, 以下简称“该装置”, 该装置由下端组件、 上端组件、 转动组件、 以及 密封组件四部分组成。 其中, 下端组件包括转轴 1、 固定螺母、 以及压紧轴套 11 , 所述转轴 1的一段设有外螺纹, 末端设有台阶, 所述固定锁母 12螺纹套设在所 述转轴 1上, 所述压紧轴套 11压紧设置在所述转轴 1上; 上端组件包括固定头 5、 离心外壳 2、 以及限位螺母 6 , 所述固定头 5套设在所述压紧轴套 11上、 且一段表 面光滑、 一段设有外螺纹, 所述离心外壳 2套设在所述固定头 5上表面光滑的一 段, 所述限位螺母 6螺纹套设在所述固定头 5设有外螺纹的一段, 所述限位螺母 6 与所述离心外壳 2接触并压紧; 转动组件包括钢球座 10和多个钢球 3 , 所述钢球 座 10转动设置在所述压紧轴套 11上方, 所述钢球 3设置在所述钢球座 10与压紧轴 套 11之间, 所述离心外壳 2内也设有多个同尺寸的钢球 3、 并与所述固定头 5上表 面光滑的一段直接接触; 密封组件包括钢环 9、 旋转密封件 4、 以及密封件座 8, 所述钢环 9设置在所述钢球座 10的上端, 所述旋转密封件 4设置在所述钢环 9内, 所述密封件座 8压紧设置在所述钢环 9上, 所述旋转密封件 4为 0型圈 403 , 所述 0 型圈 403的直径与所述钢环 9的高度相等, 0型圈 403能够承受五十兆帕斯卡之内 的压力, 且 0型圈 403既可以用于静态环境, 也可以用于存在相对运动的动态环 境。
[0023] 实施例二:
[0024] 在前述实施例一的基础上, 且在不脱离所附权利要求定义的本实用新型的精神 和范围前提下, 实施例二针对所述旋转密封件 4做出变化。 所述旋转密封件 4为 唇形密封圈 401, 所述唇形密封圈 401包括 V形外壳 401a, 所述 V形外壳 401a构成 唇口 401c, 所述唇口 401c内设有螺旋弹簧 401b; 通过其唇口 401c在外界压力的作 用下变形, 使唇口 401c的上下两个面紧贴, 从而实现密封, 随着外界压力的不断 增大, 唇口 401c贴合越紧密, 密封效果随之增大; 且唇口 401c经过磨损后具有自 动补偿能力。 同时, 唇形密封圈 401具有如下优势: 1、 有相对运动时, 由密封 件引起的摩擦力要小, 摩擦系数要稳定。 2、 在一定的压力和温度范围内具有良 好的密封性能, 并能随压力的增大自动地提高密封程度。 3、 结构简单, 使用及 维修方便, 成本低。 4、 抗腐蚀能力强, 不易老化, 耐磨性要好, 磨损后在一定 程度上能自动补偿, 工作寿命长。
[0025] 实施例三:
[0026] 在前述实施例一的基础上, 且在不脱离所附权利要求定义的本实用新型的精神 和范围前提下, 实施例三针对所述旋转密封件 4做出变化。 所述旋转密封件 4为 迷宫密封环 402, 所述迷宫密封环 402包括上环 402a和下环 402c两部分, 所述上环 402a与下环 402c呈 E形, 所述上环 402a与下环 402(:分别互补配合, 所述下环 402c 凸起的部分两侧设有硬质毛刷 402b, 所述硬质毛刷 402b的末端与所述上环 402a凹 下部分的两侧贴合, 并产生预定角度的形变; 当上环 402a与下环 402c长时间接触 摩擦后, 会产生不同程度的磨损, 所述硬质毛刷 402b就是用于应对这一情况发 生从而提出的解决方案。 具体的, 由于所述硬质毛刷 402b与上环 402a之间接触并 产生预留范围的形变, 当产生磨损时, 硬质毛刷 402b会自动恢复这一范围内的 形变量, 从而对磨损的范围进行补偿。 通过所述上环 402a与下环 402c之间的相互 配合, 使得空气在通过该旋转密封件 4时产生阻力, 并随着空气的流动逐渐消能 , 由“迷宫效应”最终产生密封效果, 防止外界气体进入转接装置内部, 硬质毛刷 402b用于弹性连接上环 402a与下环 402c, 防止因上环 402a与下环 402c直接接触导 致磨损。 “迷宫效应”的密封原理如下: 流体通过迷宫产生阻力并使其流量减少的 机能称为“迷宫效应”。 对液体, 有流体力学效应, 其中包括水力磨阻效应、 流束 收缩效应; 对气体, 还有热力学效应, 即气体在迷宫中因压缩或者膨胀而产生 的热转换; 此外, 还有“透气效应”等。 而迷宫效应则是这些效应的综合反应。
[0027] 实施例四:
[0028] 在不脱离所附权利要求定义的本实用新型的精神和范围前提下, 实施例四对前 述多个实施例做出具体补充, 具体内容如下: 所述固定头 5的末端内壁处设有内 螺纹, 所述内螺纹上套设有连接头 7 ; 连接头 7用于连接管道。 所述连接头 7的外 壁、 且与所述固定头 5贴合处设有缺口, 所述离心外壳 2与所述固定头 5接触的预 定位置处也设有缺口, 所述缺口内套设有密封圈; 所述密封圈起到二级密封的 作用。
[0029] 通过上述技术方案, 本实用新型目的在于单一旋转轴 1使用情况下即使有其它 方向的负载也不会失效或损坏, 实现在高压下也能顺畅自由的旋转活动。 利用 旋转密封件 4, 在作为优选的实施例中, 该旋转密封件 4可以为唇形密封圈 401、
0型圈 403、 或迷宫密封环 402, 使得该转接装置能够在受到高压的同时仍能保持 良好的气密性; 利用钢环 9、 密封件座 8和旋转密封件 4的配合使用, 使转轴 1完 全脱离密封, 实现其它方向的作用力不会影响密封的失效; 引入钢球 3和钢球座 10, 使该转接装置在很高的压力下仍能顺畅转动。 有效解决了当前工业设备中 的旋转连接头 7使用寿命短、 耐压能力差、 受径向载荷弱的问题。
[0030] 如上所述, 尽管参照特定的优选实施例已经表示和表述了本实用新型, 但其不 得解释为对本实用新型自身的限制。 在不脱离所附权利要求定义的本实用新型 的精神和范围前提下, 可对其在形式上和细节上做出各种变化。

Claims

权利要求书
[权利要求 1] 一种高压气密转接装置, 其特征是包括:
下端组件, 包括一段设有外螺纹、 末端设有台阶的转轴, 螺纹套设在 所述转轴上的固定锁母, 以及压紧设置在所述转轴的台阶上的压紧轴 套;
上端组件, 包括套设在所述压紧轴套上、 且一段表面光滑、 一段设有 外螺纹的固定头, 套设在所述固定头上表面光滑的一段的离心外壳, 以及螺纹套设在所述固定头设有外螺纹的一段的限位螺母, 所述限位 螺母与所述离心外壳接触并压紧;
转动组件, 包括转动设置在所述压紧轴套上方的钢球座, 以及设置在 所述钢球座与压紧轴套之间的多个钢球; 所述离心外壳内也设有多个 同尺寸的钢球、 并与所述固定头上表面光滑的一段直接接触; 密封组件, 包括设置在所述钢球座上端的钢环, 设置在所述钢环内的 旋转密封件, 以及压紧设置在所述钢环上的密封件座; 所述旋转密封 件为 O型圈, 所述 0型圈的直径与所述钢环的高度相等。
[权利要求 2] 根据权利要求 1所述的一种高压气密转接装置, 其特征在于: 所述旋 转密封件为唇形密封圈, 所述唇形密封圈包括 V形外壳, 所述 V形外 壳构成唇口, 所述唇口内设有螺旋弹簧。
[权利要求 3] 根据权利要求 1所述的一种高压气密转接装置, 其特征在于: 所述旋 转密封件为迷宫密封环, 所述迷宫密封环包括上环和下环两部分, 所 述上环与下环呈 E形, 所述上环与下环分别互补配合, 所述下环凸起 的部分两侧设有硬质毛刷, 所述硬质毛刷的末端与所述上环凹下部分 的两侧贴合, 并产生预定角度的形变。
[权利要求 4] 根据权利要求 1所述的一种高压气密转接装置, 其特征在于: 所述固 定头的末端内壁处设有内螺纹, 所述内螺纹上套设有连接头。
[权利要求 5] 根据权利要求 1或 4所述的一种高压气密转接装置, 其特征在于: 所述 连接头的外壁、 且与所述固定头贴合处设有缺口, 所述离心外壳与所 述固定头接触的预定位置处也设有缺口, 所述缺口内套设有密封圈。
PCT/CN2019/112985 2019-02-28 2019-10-24 一种高压气密转接装置 WO2020173108A1 (zh)

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