WO2018059249A1 - Dispositif d'étanchéité à lèvre axiale destiné à un arbre tournant - Google Patents

Dispositif d'étanchéité à lèvre axiale destiné à un arbre tournant Download PDF

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Publication number
WO2018059249A1
WO2018059249A1 PCT/CN2017/101879 CN2017101879W WO2018059249A1 WO 2018059249 A1 WO2018059249 A1 WO 2018059249A1 CN 2017101879 W CN2017101879 W CN 2017101879W WO 2018059249 A1 WO2018059249 A1 WO 2018059249A1
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WO
WIPO (PCT)
Prior art keywords
ring
axial lip
lip seal
spring
face
Prior art date
Application number
PCT/CN2017/101879
Other languages
English (en)
Chinese (zh)
Inventor
李雄
李秀华
李上平
丁文静
Original Assignee
桂林端面油封科技有限公司
李雄
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 桂林端面油封科技有限公司, 李雄 filed Critical 桂林端面油封科技有限公司
Publication of WO2018059249A1 publication Critical patent/WO2018059249A1/fr

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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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
    • 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
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
    • F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/328—Manufacturing methods specially adapted for elastic sealings
    • 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
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials

Definitions

  • the present invention relates to a seal for a rotating shaft in mechanical manufacturing, and more particularly to an axial lip seal for a rotating shaft.
  • radial seal In the existing rotary shaft seal contact seals, there are generally two types.
  • One type of radial seal is to seal the surface of the rotating shaft with the lip of elastic rubber and polytetrafluoroethylene, which is simply referred to as oil seal, and the other is
  • the axial seal is a sealing mechanism that uses two hard silicon carbide, graphite, ceramic, alloy, steel, bronze, cast iron materials to make two polished sealing end faces that slide under axial spring pressure, which is referred to as mechanical seal.
  • mechanical seal which is referred to as mechanical seal.
  • the PTFE plastic sealing lip has no compression elasticity, can not adapt to the change of shaft roughness and eccentricity, has poor dynamic eccentric followability, is easy to hurt the shaft, and is not resistant to pressure.
  • the mechanically sealed silicon carbide and ceramic sealing ring are easy. Broken, anti-heavy load is not very good.
  • the sealing end face of the graphite sealing ring is prone to expansion deformation during long-term friction, which reduces the flatness of the sealing end face and causes the sealing medium to leak from the sealing interface.
  • Floating seals are used in large-diameter end face seals, but the axial compression failure of rubber compression during use is more common and it is difficult to achieve the desired results.
  • the present invention provides an axial lip seal device for a rotating shaft, which is less prone to expansion and hardening, and can adapt to changes in shaft roughness and eccentricity, and has good eccentric followability. It can withstand high pressure, has good sealing performance in high speed, high temperature, high dust and corrosive sealing medium environment, high reliability, long service life, simple structure and easy installation.
  • the invention relates to an axial lip seal device for a rotating shaft, comprising a non-compensating ring, a compensating ring, a compensating ring seat and a compression spring which are sequentially connected, the upper end surface of the compensating ring is matched with the end surface of the non-compensating ring, and the lower end surface is fixed by the compensating ring seat The lower end surface of the compensation ring seat is fitted to the compression spring, which is different from the prior art.
  • the compensating ring is an axial lip seal ring, the upper end surface of which is a funnel-shaped sealing end face with a low inner ring and a high outer ring ring, and an outer large and small horizontal V-shaped spring groove is arranged on the back surface of the funnel-shaped sealing end face, and the V shape Self-tightening springs are fitted in the spring slots.
  • the compression spring is a combined compression spring, comprising an annular ring, upper and lower bosses spaced apart from the upper and lower end faces of the annular ring.
  • the axial lip seal is made of engineering plastic PTFE plastic, and the filler is molded and burned. Knot forming.
  • the axial lip seal has a weight distribution ratio of polytetrafluoroethylene plastic to filler of 100:40-50.
  • the funnel-shaped sealing end surface has a low inclination of the inner ring and an outer ring height of 25-50°.
  • the self-tightening spring is a spring made of a spring steel wire and connected with a spring with a certain radial self-tightening force.
  • the annular ring of the combined compression spring is stamped from a spring steel plate or a steel strip.
  • the upper boss and the lower boss are made of rubber and are respectively wrapped or wrapped on the upper and lower end faces of the annular ring.
  • the annular ring is coated with a layer of glue when it is in contact with the corrosive sealing medium, and then is formed by vulcanization molding with a fluorine rubber;
  • the compensation ring seat is formed by drawing and forming a metal frame with an inner flange or an outer flange by a steel plate punching machine, and is subjected to oil removal and rust removal treatment, and the rubber molding is covered, and the inner flange and the outer flange are respectively provided.
  • a radial lip seal that mates with the lower end of the axial lip seal.
  • the positive effect of the invention is that the elastic force generated by the combined compression spring causes the axial lip seal fixed on the compensation ring seat to adhere to the end face of the non-compensation ring for a long time, and the V-shaped spring groove of the axial lip seal is favorable for
  • the sealing medium cools the heat generated by the friction of the sealing end face, and the sealing medium is pressed on the surface of the V-shaped spring groove to facilitate the pressure bearing capacity of the end face of the axial lip sealing ring, and also facilitates the sealing action of the sealing interface by the front and rear sliding action of the spring;
  • the funnel-shaped sealing end face of the axial lip seal and the non-compensating ring sealing end face are not easy to overheat and overheat when sliding.
  • the self-tightening spring adopts a fluorine rubber O-ring, and the annular ring of the combined compression spring and the metal skeleton of the compensation ring seat are bonded with a corrosion-resistant elastic fluorine rubber to effectively isolate the corrosive medium.
  • the seal is also made of corrosion-resistant elastic fluoro rubber.
  • the funnel-shaped sealing end face of the axial lip seal made of engineering plastic PTFE plastic will deform and fit on the wear groove sealing end face of the non-compensating ring under the long-term action of the combined compression spring and the self-tightening spring.
  • the axial lip seal is made of polytetrafluoro-filled solid lubrication and reinforcing filler, which has good wear resistance, wear-reducing and stability, and greatly improves the shaft for rotating shaft. The service life and reliability of the lip seal.
  • FIG. 1 is a schematic longitudinal sectional view showing an axial lip seal device for a rotating shaft according to the present invention
  • Figure 2 is a schematic view showing the structure of a single lip axial lip seal
  • Figure 3 is a schematic view showing the structure of a lip-shaped axial lip seal
  • Figure 4 is a schematic view showing the structure of a combined compression spring
  • Non-compensated ring 2. Compensating ring 3. Compensating ring seat 4. Combined compression spring 5. Funnel-shaped sealing end face 6. V-shaped spring groove 7. Self-tightening spring 8. Annular ring 9. Upper boss 10. Lower boss 11 metal frame 12. Radial lip seal.
  • an axial lip seal device for a rotating shaft comprises a non-compensating ring 1 , a compensating ring 2 , a compensating ring seat 3 and a compression spring 4 which are sequentially connected, and an upper end surface and a non-compensating ring of the compensating ring 2
  • the end faces of 1 are bonded, and the lower end surface of the compensating ring 2 is fixed by the compensating ring seat 3, and the lower end surface of the compensating ring seat 3 is fitted to the upper boss 9 of the compression spring 4.
  • the compensating ring 2 is a schematic diagram of a single lip axial lip seal ring, and the upper end surface is a funnel-shaped sealing end surface 5 having a low inner ring and an outer ring height, and is disposed on the back surface of the funnel-shaped sealing end surface 5.
  • the compensation ring 2 can also be a schematic diagram of a double lip axial lip seal, which is provided with two axial lip seals, and two axial lip seals are arranged in parallel, axially.
  • the lip seal and the axial lip seal are sealed by a rubber seal ring, and the upper end surface of each axial lip seal is a funnel-shaped seal end face 5 with a low inner ring and a low outer ring, and the inclination is 45°.
  • An outer large and small horizontal V-shaped spring groove 6 is provided on the back surface of the funnel-shaped sealing end surface 5, and a self-tightening spring 7 is disposed in the V-shaped spring groove 6.
  • the compression spring 4 is a combined compression spring, and includes an annular ring 8, an upper boss 9 and a lower boss 10 which are disposed at upper and lower end faces of the annular ring.
  • the axial lip seal is made of engineering plastic PTFE plastic, and the filler is molded by molding.
  • the weight distribution ratio of the polytetrafluoroethylene plastic to the filler is 100:45, and the filler is solid lubrication.
  • the agent and the reinforcing agent are formed by compression molding, sintering, cooling, etc.; the back surface of the funnel-shaped sealing end face is processed into a V-shaped spring groove by a lathe, and the self-tightening spring in the V-shaped spring groove has a moderate elasticity of the funnel-shaped sealing end face.
  • the self-tightening spring 7 is a spring made of a spring steel wire and a spring having a certain radial self-tightening force connected end to end;
  • the annular ring 8 of the combined compression spring is stamped from a spring steel plate or a steel strip;
  • the upper boss 9 and the lower boss 10 are made of rubber and are respectively wrapped or wrapped on the upper and lower end faces of the annular ring 8. To obtain a larger elastic force, it is only necessary to increase the diameter of the annular ring 8. And increase the number of bosses to achieve results;
  • the annular ring 8 is coated with a layer of glue when it is in contact with the corrosive sealing medium, and then is formed by vulcanization molding with a fluorine rubber;
  • the compensation ring seat 3 is a metal frame 11 which is stretched by a steel plate punching machine into an inner flange or an outer flange. After degreasing and derusting treatment, the rubber molding is covered, the inner flange and the outer flange are both A radial lip seal 12 is provided that mates with the lower end face of the axial lip seal.
  • the non-compensating ring 1, the compensating ring 2, the compensating ring seat 3 and the compression spring 4 are sequentially arranged as an axial lip seal device for the rotating shaft, and the elastic force generated by the compression spring 4 after the force is applied to the upper boss 9 and the lower boss 10 make the annular ring 8 corrugated under the displacement of the displacement, and the upper boss 9 bears against the end surface of the compensation ring seat 3 so as to be fixed on the compensation ring seat 3.
  • the funnel-shaped sealing end face 5 of the axial lip seal 2 is attached to the end face of the non-compensation 1, and as the compression force increases, the sealing interface increases, and the sealing effect increases.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Sealing Devices (AREA)
  • Mechanical Sealing (AREA)

Abstract

L'invention concerne un dispositif d'étanchéité à lèvre axiale destiné à un arbre tournant, le dispositif comprenant une bague sans compensation (1), une bague de compensation (2), un siège (3) de bague de compensation et un ressort de compression (4), reliés dans l'ordre. Une face d'extrémité supérieure de la bague de compensation (2) est fixée à une face d'extrémité de la bague sans compensation (1), une face d'extrémité inférieure est fixée par le siège de la bague de compensation (3), une face d'extrémité inférieure du siège (3) de la bague de compensation est fixée au ressort de compression (4), la bague de compensation (2) est une bague d'étanchéité à lèvre axiale dont une face d'extrémité supérieure est une face d'extrémité d'étanchéité (5) en forme d'entonnoir comportant une bague interne basse et une bague externe élevée, la face arrière de la face d'extrémité d'étanchéité (5) en forme d'entonnoir est munie d'une fente de ressort (6) en forme de V horizontale, partie grande à l'extérieur et partie petite à l'intérieur, un ressort jarretière (7) est monté dans la fente de ressort (6) en forme de V horizontale, et le ressort de compression (4) est un ressort de compression combiné, comprenant une bague annulaire (8) et un bossage supérieur (9) et un bossage inférieur (10) espacés l'un de l'autre sur les faces d'extrémité supérieure et inférieure de la bague annulaire (8). Les phénomènes d'expansion et de durcissement ne se produiront pas facilement dans ce dispositif, et le dispositif peut s'adapter aux changements de rugosité et d'excentricité de l'arbre, il possède une bonne capacité de suivi excentrique et peut supporter une pression élevée, il présente une bonne efficacité d'étanchéité dans un environnement d'une substance d'étanchéité à haute vitesse, à haute température, à haute quantité de poussières et corrosive, une fiabilité élevée, une longue durée de vie et une structure simple, et il peut être installé facilement.
PCT/CN2017/101879 2016-09-30 2017-09-15 Dispositif d'étanchéité à lèvre axiale destiné à un arbre tournant WO2018059249A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610864780.3A CN106286840B (zh) 2016-09-30 2016-09-30 一种旋转轴用轴向唇形密封装置
CN201610864780.3 2016-09-30

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WO2018059249A1 true WO2018059249A1 (fr) 2018-04-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109027239A (zh) * 2018-09-26 2018-12-18 天津包博特密封科技有限公司 船用舵杆双面唇形密封圈
CN114033687A (zh) * 2021-11-23 2022-02-11 珠海格力电器股份有限公司 一种滚子组件、泵体组件和压缩机

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* Cited by examiner, † Cited by third party
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CN106286840B (zh) * 2016-09-30 2018-02-09 桂林端面油封科技有限公司 一种旋转轴用轴向唇形密封装置
CN107116120B (zh) * 2017-05-18 2019-04-26 日照润增机械有限公司 一种用于生产汽车连接件的高速冲床及其冲压方法
CN109973658A (zh) * 2019-04-20 2019-07-05 清华大学 一种自补偿智能唇形密封
CN110565507A (zh) * 2019-09-30 2019-12-13 中铁二院工程集团有限责任公司 具有抗冲击能力的液体黏滞阻尼器
CN112879563B (zh) * 2021-01-13 2022-12-30 西安近代化学研究所 一种利用液体体膨胀压力压紧密封圈提高密封性的密封装置
CN115217975B (zh) * 2022-07-22 2024-05-10 西安近代化学研究所 一种将轴向力转化为径向挤压贴合力的密封装置
CN115217976B (zh) * 2022-07-22 2024-05-10 西安近代化学研究所 一种适用于圆形截面聚四氟乙烯密封圈的径向密封装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3739513A1 (de) * 1987-11-21 1989-06-01 Kaco Gmbh Co Dichtung
CN2065258U (zh) * 1989-11-04 1990-11-07 杭州水泵总厂 一种干式电泵用的组合轴封装置
CN201417988Y (zh) * 2009-03-11 2010-03-03 孟凡英 直连行星锥盘式无级变速机的电动机轴端密封
CN102483163A (zh) * 2009-07-30 2012-05-30 特瑞堡密封系统德国有限公司 密封件和密封装置
CN204201083U (zh) * 2014-10-16 2015-03-11 武汉新置密封科技有限公司 回转唇形迷宫密封装置
US20150091256A1 (en) * 2013-09-30 2015-04-02 Aktiebolaget Skf Seal assembly with adjustable outside diameter
CN205047845U (zh) * 2015-10-23 2016-02-24 宁波方力密封件有限公司 机械密封中的静环组件
CN105840832A (zh) * 2016-06-06 2016-08-10 昆山健博密封件科技有限公司 一种防尘密封圈
CN106286840A (zh) * 2016-09-30 2017-01-04 桂林端面油封科技有限公司 一种旋转轴用轴向唇形密封装置
CN206112087U (zh) * 2016-09-30 2017-04-19 桂林端面油封科技有限公司 一种旋转轴用轴向唇形密封装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201031814Y (zh) * 2007-04-30 2008-03-05 胡滨 蝶片弹簧机械密封件
CN101532567A (zh) * 2009-03-24 2009-09-16 宁波东联密封件有限公司 改进型机械密封
CN101608691A (zh) * 2009-06-30 2009-12-23 广州机械科学研究院 洛式密封圈及其制备方法
CN201844024U (zh) * 2010-11-15 2011-05-25 温州市天成密封件制造有限公司 一种橡胶包覆v形弹簧机械密封装置
US9132539B1 (en) * 2014-06-06 2015-09-15 Aktiebolaget Skf Method of forming a V-ring seal

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3739513A1 (de) * 1987-11-21 1989-06-01 Kaco Gmbh Co Dichtung
CN2065258U (zh) * 1989-11-04 1990-11-07 杭州水泵总厂 一种干式电泵用的组合轴封装置
CN201417988Y (zh) * 2009-03-11 2010-03-03 孟凡英 直连行星锥盘式无级变速机的电动机轴端密封
CN102483163A (zh) * 2009-07-30 2012-05-30 特瑞堡密封系统德国有限公司 密封件和密封装置
US20150091256A1 (en) * 2013-09-30 2015-04-02 Aktiebolaget Skf Seal assembly with adjustable outside diameter
CN204201083U (zh) * 2014-10-16 2015-03-11 武汉新置密封科技有限公司 回转唇形迷宫密封装置
CN205047845U (zh) * 2015-10-23 2016-02-24 宁波方力密封件有限公司 机械密封中的静环组件
CN105840832A (zh) * 2016-06-06 2016-08-10 昆山健博密封件科技有限公司 一种防尘密封圈
CN106286840A (zh) * 2016-09-30 2017-01-04 桂林端面油封科技有限公司 一种旋转轴用轴向唇形密封装置
CN206112087U (zh) * 2016-09-30 2017-04-19 桂林端面油封科技有限公司 一种旋转轴用轴向唇形密封装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109027239A (zh) * 2018-09-26 2018-12-18 天津包博特密封科技有限公司 船用舵杆双面唇形密封圈
CN114033687A (zh) * 2021-11-23 2022-02-11 珠海格力电器股份有限公司 一种滚子组件、泵体组件和压缩机

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