CN104613179A - Y型密封圈 - Google Patents

Y型密封圈 Download PDF

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Publication number
CN104613179A
CN104613179A CN201310538017.8A CN201310538017A CN104613179A CN 104613179 A CN104613179 A CN 104613179A CN 201310538017 A CN201310538017 A CN 201310538017A CN 104613179 A CN104613179 A CN 104613179A
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CN
China
Prior art keywords
epipharynx
lip
seal ring
sealing ring
piston rod
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201310538017.8A
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English (en)
Inventor
王惠峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Residence New Mechanical Co Ltd Of Shaking After Wuxi City
Original Assignee
Residence New Mechanical Co Ltd Of Shaking After Wuxi City
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 Residence New Mechanical Co Ltd Of Shaking After Wuxi City filed Critical Residence New Mechanical Co Ltd Of Shaking After Wuxi City
Priority to CN201310538017.8A priority Critical patent/CN104613179A/zh
Publication of CN104613179A publication Critical patent/CN104613179A/zh
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • F15B15/1457Piston rods
    • F15B15/1461Piston rod sealings
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

本发明提供了Y型密封圈,其密封性能和耐压性能优良,大大延长了密封圈的使用寿命。其包括外唇与内唇,其特征在于:内唇与活塞杆贴合的一侧设有1~3个副唇,副唇与内唇之间或者相邻副唇之间设有的间隙,内唇与活塞杆轴线的夹角为22°,外唇与内唇的夹角为53°、并且其根部通过曲面过渡连接,曲面的半径为2.3mm,外唇与内唇的厚度均为3mm。

Description

Y型密封圈
技术领域
本发明涉及一种密封圈,具体涉及Y型密封圈。
背景技术
Y型密封圈广泛应用于往复运动的密封装置中,其截面为Y型,包括内唇和外唇。现有的Y型密封圈采用单边密封,虽然其密封性能、耐压性能和使用寿命大大超过O型密封圈,但在精密液压油缸内作密封使用时,其单一密封唇经活塞杆长时间反复接触,即使轻微的摩擦受损,也将导致密封性能降低从而导致液压油泄露,影响液压油缸的正常运作,并且现有的Y型密封圈的工作压力≤32Mpa, 无法适用于工作压力较高的精密液压油缸。
发明内容
针对上述问题,本发明提供了Y型密封圈,其密封性能和耐压性能优良,大大延长了密封圈的使用寿命。
Y型密封圈,包括外唇与内唇,其特征在于:所述内唇与活塞杆贴合的一侧设有1~3个副唇,所述副唇与所述内唇之间或者相邻所述副唇之间设有的间隙,所述内唇与活塞杆轴线的夹角为22°,所述外唇与所述内唇的夹角为53°、并且其根部通过曲面过渡连接,所述曲面的半径为2.3mm,所述外唇与所述内唇的厚度均为3mm。
其进一步特征在于:
所述密封圈的外径为141.8mm、内径为118.2mm。
采用本发明的结构后,内唇与活塞杆贴合的一侧设有1~3个副唇,所述副唇与所述内唇之间或者相邻所述副唇之间设有的间隙,活塞杆上带有的残留液体将充满内唇与副唇以及相邻副唇之间的空间,形成一个特殊的密封区,即使内唇因反复摩擦受损,上述特殊的密封区仍然起到密封作用,从而大大提高了Y型密封圈的密封性能,并且副唇与内唇的共同作用提高了Y型密封圈的耐压性能,同时,内唇与活塞杆轴线的夹角为22°,外唇与内唇的夹角为53°、并且其根部通过曲面过渡连接,曲面的半径为2.3mm,外唇与内唇的厚度均为3mm,这样的结构设置不仅可以进一步提高Y型密封圈的密封性能和耐压性能,并且兼顾了Y型密封圈与活塞杆之间的摩擦力,从而大大提高了Y型密封圈的使用寿命。
附图说明
图1为本发明的结构示意图;
图2为本发明的截面放大后的结构示意图。
具体实施方式
见图1和图2,   Y型密封圈,包括外唇2与内唇1,内唇1与活塞杆贴合的一侧设有3个副唇3,副唇3与内唇1之间或者相邻副唇3之间设有间隙,内唇1与活塞杆轴线的夹角B为22°,外唇与内唇的夹角A为53°、并且其根部通过曲面4过渡连接,曲面4的半径R为2.3mm,外唇2与内唇1的厚度d均为3mm,密封圈的外径M为141.8mm、内径N为118.2mm,其中,相邻副唇3的端部间距D为1.5mm。

Claims (2)

1.Y型密封圈,包括外唇与内唇,其特征在于:所述内唇与活塞杆贴合的一侧设有1~3个副唇,所述副唇与所述内唇之间或者相邻所述副唇之间设有的间隙,所述内唇与活塞杆轴线的夹角为22°,所述外唇与所述内唇的夹角为53°、并且其根部通过曲面过渡连接,所述曲面的半径为2.3mm,所述外唇与所述内唇的厚度均为3mm。
2.根据权利要求1所述的Y型密封圈,其特征在于:所述密封圈的外径为141.8mm、内径为118.2mm。
CN201310538017.8A 2013-11-05 2013-11-05 Y型密封圈 Pending CN104613179A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310538017.8A CN104613179A (zh) 2013-11-05 2013-11-05 Y型密封圈

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310538017.8A CN104613179A (zh) 2013-11-05 2013-11-05 Y型密封圈

Publications (1)

Publication Number Publication Date
CN104613179A true CN104613179A (zh) 2015-05-13

Family

ID=53147769

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310538017.8A Pending CN104613179A (zh) 2013-11-05 2013-11-05 Y型密封圈

Country Status (1)

Country Link
CN (1) CN104613179A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105042077A (zh) * 2015-07-07 2015-11-11 青岛睿辰密封科技有限公司 一种高性能多用途齿状y形组合密封装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105042077A (zh) * 2015-07-07 2015-11-11 青岛睿辰密封科技有限公司 一种高性能多用途齿状y形组合密封装置

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Application publication date: 20150513

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