WO2008071084A1 - Joint d'étanchéité combiné de type manchon - Google Patents

Joint d'étanchéité combiné de type manchon Download PDF

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Publication number
WO2008071084A1
WO2008071084A1 PCT/CN2007/003531 CN2007003531W WO2008071084A1 WO 2008071084 A1 WO2008071084 A1 WO 2008071084A1 CN 2007003531 W CN2007003531 W CN 2007003531W WO 2008071084 A1 WO2008071084 A1 WO 2008071084A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
sealing
seal
torsion spring
radial
Prior art date
Application number
PCT/CN2007/003531
Other languages
English (en)
Chinese (zh)
Inventor
Caiyun Li
Original Assignee
Caiyun Li
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 Caiyun Li filed Critical Caiyun Li
Publication of WO2008071084A1 publication Critical patent/WO2008071084A1/fr

Links

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
    • F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings

Definitions

  • the utility model belongs to the technical field of packing sealing. Background technique
  • packing seals are seals made of a soft material such as hemp, leather, asbestos, expanded graphite, etc., which block the sealed shaft and the stuffing box, or the gap between the shell hole and the rod to prevent the medium from leaking.
  • a soft material such as hemp, leather, asbestos, expanded graphite, etc.
  • the radial sealing pressure is uneven due to the axial pressing, which affects the sealing effect and sealing ability.
  • the coaxial seals such as the Glyd Ring and the Sterling Seal have reliable performance and remarkable effects, but there are also inconveniences in adjusting the radial sealing pressure. Summary of the invention
  • the purpose of the invention is to use a sealing material with higher strength, higher hardness, more pressure resistance, wear resistance, medium resistance, heat resistance and better self-sliding performance (for example: engineering plastics such as reinforced modified PTFE and Its alloys, various impregnating materials of graphite, various alloys, etc., combined with existing sealing technology, provide a sleeve type combined sealing element, which not only solves the problem of uneven radial pressure of the packing seal, but also can pass Adjusting the radial seal pressure or the radial seal gap further improves the sealing ability of the sealing member, while maintaining the radial seal at an optimum while the axial end face is statically sealed without leakage.
  • a sealing material with higher strength, higher hardness, more pressure resistance, wear resistance, medium resistance, heat resistance and better self-sliding performance for example: engineering plastics such as reinforced modified PTFE and Its alloys, various impregnating materials of graphite, various alloys, etc.
  • a sleeve type combined sealing element which is mainly composed of a torsion spring type force applying element 3 and a sleeve member 4, the sleeve member 4 is fitted on a sealed surface, and the torsion spring type force applying member 3 Mounted on the other side of the sleeve member 4, the torsion spring type force-applying member 3 can be radially displaced by applying a torque, the sleeve member 4 is a radially deformable member, and the torsion spring-type force-applying member 3 Radial deformation occurs radially to perform radial sealing, while axial compression is applied to perform axial end face static sealing.
  • the invention belongs to the technical field of packing sealing, and the above-mentioned sleeve type sealing element should be assembled in a compression sleeve in a packing sealing device having a pressing mechanism and a pressing sleeve.
  • the above-mentioned torsion spring type urging member is passed through a pressing mechanism (the internal thread pressing cover 8 shown in Figs. 2 and 3 and the lock nut 10 shown in Fig. 4) and the torque transmitting sleeve 5 3
  • the torque is applied, and the above-mentioned sleeve member 4 is also statically sealed by the axial end face by the pressing mechanism and the torque-carrying compression sleeve 5.
  • the sleeve member 4 of the sleeve-type combination sealing member can be fitted and sealed with other sealing members.
  • the invention can not only solve the problem of uneven radial pressure of the packing seal, but also further improve the sealing ability of the sealing element by adjusting the radial sealing pressure or the radial sealing gap, and is capable of achieving the radial sealing in an optimal state, the axial direction. Multi-functional, comprehensive combination sealing technology with no static leakage on the end face.
  • FIG. 1 is a structural schematic view of the torsion spring type force-applying member 3 and the sleeve member 4 of the present invention
  • FIG. 2 is a schematic structural view of the rotary shaft seal
  • Figure 3 is a schematic structural view of a reciprocating shaft seal
  • Figure 4 is a schematic structural view of a reciprocating hole seal
  • Figure 5 is a schematic structural view of another rotary shaft seal.
  • the invention has a wide range of uses, and only four specific embodiments are proposed for the length of the text.
  • the invention mainly utilizes the characteristic that the torsion spring is contracted when the torque is subjected to the torque (when it is in the same direction as the spring spiral) or the expansion (when it is reversely twisted with the spring), and the torsion spring is similar to the torsion spring.
  • the urging element 3 is combined with a sleeve member 4 that is combined in the torsion spring type urging element 3 (for shaft sealing) or outer (for hole sealing).
  • the torsion spring type force-applying member 3 is preferably a rectangular or trapezoidal spring wire, and the both ends are designed to have a concave or convex structure with an inner arm, a radially outer arm and/or an axial outer arm.
  • the torsion spring type force-applying element 3 for shaft sealing should have a certain gap to compensate for the axial length increment of the torsion spring type force-applying element when the shrinkage deformation occurs.
  • a sleeve member 4 combined in or outside the torsion spring type force-applying member 3, which is compounded or combined from one or more materials, and is designed to have a gap between the sealed shaft 1 or the hole. Tube.
  • the sleeve member adopts a sealing material or a sealing material which is most suitable for the sealing, and has a high hardness, a large modulus of elasticity and a large modulus of elasticity according to the sealing condition.
  • a sealing material or a sealing material which is most suitable for the sealing, and has a high hardness, a large modulus of elasticity and a large modulus of elasticity according to the sealing condition.
  • Made of a material large enough to withstand a larger axial load and a radially deformable structure (such as a structure with a uniform axial groove, an evenly distributed flap, an evenly distributed partial port, etc.) Compound or combined.
  • the sleeve member 4 may be cylindrical, corrugated, drum-shaped, saddle-shaped, etc., or have a radial sealing surface structure that can be combined with other sealing members, and has a flat surface, a conical surface, a circular arc surface, a B shape A face, a concave face, or an axially statically sealed end face in which the front faces are combined with each other, or other structure that can be matched with existing seals.
  • Both the fixing sleeve 6 and the torque transmitting compression sleeve 5 have an axial static sealing end face structure matched with the sleeve member 4 and a torque transmitting structure matched with the arms of the torsion spring type force applying member 3, the pressure
  • the sleeve 6 also has a structure for transmitting a concave groove, a hole, and the like, and the arms of the torsion spring type force-applying member 3 are respectively fixed or clamped in the fixing sleeve 6 and the compression sleeve 5 into which the torque can be input.
  • the torque required to seal the required direction of rotation is first input to the compression sleeve 6 that transmits the torque, and is forced into the torsion spring type force-energizing element 3 by the radial pressure generated by the torsion spring type force-applying element 3 (
  • the sleeve member 4 is diametrically deformed (for shaft sealing) or expanded (for hole sealing) to adjust the radial pressure contact seal or radial direction of the seal.
  • the gap non-contact seal firstly seals the radial seal in an optimal state, and while maintaining this optimum condition, the pressing mechanism ensures that the axial end face is statically sealed without leakage, and finally the optimal sealing state is locked.
  • measures such as running-in, cooling or lubrication are adopted to further improve the sealing ability.
  • the torsion spring type urging member 3 assembled in or outside the sleeve member is only subjected to radial pressure and load, and is not subjected to axial load.
  • the fixing sleeve 5 can be integrated with the support member of the sealed shaft 1 when the shaft is sealed, and can be fixed by welding, bonding, interference assembly or screw sealing according to the sealing requirement; and can be sealed with the hole when the hole is sealed.
  • the rod such as the piston rod
  • the sleeve member 4 incorporated in or out of the torsion spring type force-applying member 3 of the present invention is a core member of the present invention, which is a seal member and a carrier for other seal members combined therewith, having positioning, guiding, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)

Abstract

L'invention concerne un joint d'étanchéité combiné de type manchon, qui comprend un manchon (4) enveloppant une surface à rendre étanche, ainsi qu'un élément à ressort déformable par couple (3) enveloppant une autre surface du manchon (4). L'élément à ressort déformable par couple (3) peut être déformé radialement par le couple appliqué par un manchon de pression (5) et le manchon (4), qui est un élément déformable radialement, est déformé radialement par la déformation radiale de l'élément à ressort déformable par couple (3). Le manchon (4) assure l'étanchéité de la surface d'extrémité axiale au moyen d'un dispositif de pression et du manchon de pression (5). L'invention permet non seulement de résoudre le problème posé par une pression radiale inégale de la garniture d'étanchéité, mais améliore également le degré d'étanchéité par régulation de la pression ou du jeu d'étanchéité radial.
PCT/CN2007/003531 2006-12-12 2007-12-11 Joint d'étanchéité combiné de type manchon WO2008071084A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610166821.8 2006-12-12
CNA2006101668218A CN101038035A (zh) 2006-12-12 2006-12-12 套筒式组合密封元件及其密封方法

Publications (1)

Publication Number Publication Date
WO2008071084A1 true WO2008071084A1 (fr) 2008-06-19

Family

ID=38889114

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/003531 WO2008071084A1 (fr) 2006-12-12 2007-12-11 Joint d'étanchéité combiné de type manchon

Country Status (2)

Country Link
CN (2) CN101038035A (fr)
WO (1) WO2008071084A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113623672A (zh) * 2021-06-24 2021-11-09 有能集团江苏威同电气设备有限公司 一种插板隔绝门内置的烟风隔绝系统

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101038035A (zh) * 2006-12-12 2007-09-19 李採云 套筒式组合密封元件及其密封方法
CN103836195B (zh) * 2012-11-26 2016-06-29 徐州徐工随车起重机有限公司 回转密封结构以及回转分配器
JP2015014343A (ja) * 2013-07-08 2015-01-22 株式会社デンソー シール構造
CN109812581A (zh) * 2019-02-26 2019-05-28 浙江兰天机械密封件有限公司 一种干磨式组合密封装置
CN112362352B (zh) * 2020-10-27 2021-12-17 中国船舶重工集团公司第七0三研究所 一种轴向压紧转化为径向密封的塔式旋流器流量试验装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067407A (en) * 1976-06-08 1978-01-10 Greene, Tweed & Co., Inc. Annular seal
CN2035411U (zh) * 1988-06-21 1989-04-05 杜忠祥 扭簧式离合器
EP0310770A2 (fr) * 1987-10-08 1989-04-12 Firma Carl Freudenberg Dispositif de sécurité de torsion
CN2152927Y (zh) * 1992-12-28 1994-01-12 朱雨秀 离心泵轴端面密封装置
US6098986A (en) * 1997-05-16 2000-08-08 Aileendonan Research Pty Ltd Seal
CN2467823Y (zh) * 2000-09-19 2001-12-26 李怀仁 密封井水泵
CN2795564Y (zh) * 2005-04-28 2006-07-12 李川 橡塑唇口复合式油封
CN101038035A (zh) * 2006-12-12 2007-09-19 李採云 套筒式组合密封元件及其密封方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067407A (en) * 1976-06-08 1978-01-10 Greene, Tweed & Co., Inc. Annular seal
EP0310770A2 (fr) * 1987-10-08 1989-04-12 Firma Carl Freudenberg Dispositif de sécurité de torsion
CN2035411U (zh) * 1988-06-21 1989-04-05 杜忠祥 扭簧式离合器
CN2152927Y (zh) * 1992-12-28 1994-01-12 朱雨秀 离心泵轴端面密封装置
US6098986A (en) * 1997-05-16 2000-08-08 Aileendonan Research Pty Ltd Seal
CN2467823Y (zh) * 2000-09-19 2001-12-26 李怀仁 密封井水泵
CN2795564Y (zh) * 2005-04-28 2006-07-12 李川 橡塑唇口复合式油封
CN101038035A (zh) * 2006-12-12 2007-09-19 李採云 套筒式组合密封元件及其密封方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113623672A (zh) * 2021-06-24 2021-11-09 有能集团江苏威同电气设备有限公司 一种插板隔绝门内置的烟风隔绝系统

Also Published As

Publication number Publication date
CN101038035A (zh) 2007-09-19
CN201202812Y (zh) 2009-03-04

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