CN101038035A - Sleeve type combined sealing component and sealing method thereof - Google Patents
Sleeve type combined sealing component and sealing method thereof Download PDFInfo
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- CN101038035A CN101038035A CNA2006101668218A CN200610166821A CN101038035A CN 101038035 A CN101038035 A CN 101038035A CN A2006101668218 A CNA2006101668218 A CN A2006101668218A CN 200610166821 A CN200610166821 A CN 200610166821A CN 101038035 A CN101038035 A CN 101038035A
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- sealing
- seal
- sleeve member
- radial
- combined
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The seal is mainly comprised of a torsional-spring similar torsional-spring reinforcing element and a sleeve barrel member nested inside (for shaft sealing) or outside (for hole sealing) . By using the radial pressure from the torsional-spring reinforcing element, elastic-plastic deformation of contraction (for shaft sealing) or expansion (for hole sealing) for diameter of the sleeve barrel member is realized. The seal is provided with various radial sealing surfaces and axial static sealing end face structures or sleeve barrel structure capable of being combined with other sealing elements and compensated sealing elements. Padding sealing structure form is employed to adjust and control the radial pressure (for contact sealing) or radial clearance (for non-contact sealing) with some accessories. Additionally, by employing wear-in, cooling or lubricating actions, the radial sealing is always kept in an optimal state, and the axial end-face static sealing is realized without leakage.
Description
The invention belongs to the packing seal technical field
Traditional packing seal is the soft packing made from soft materials such as fiber crops, leather, asbestos, stops up sealed axle and stuffing box, or crack and stop the encapsulating method of dielectric leakage between housing bore and the bar.
The major defect of soft packing seal is: the 1st, and filler poor to close property, the 2nd, produces the wearing and tearing inequality because of the radial pressure of soft packing seal is uneven, influence sealability.But soft packing seal has simple in structure, easy making, economy, advantage such as applied widely again, is widely utilized so far.The application of quality seal materials such as picture Expanded graphite has not only improved soft packing seal ability and using effect greatly, and has made soft packing seal that more significant progress arranged.
Along with the material development of science and technology, especially the development of engineering plastics, resemble the sealing material that teflon etc. is fine and close, wear-resisting, withstand voltage, heat-resisting, corrosion-resistant more, self-lubricating property is good for field of sealing technology not only provides, and promoted the development and progress of whole sealing technique.
Non-resilient contact-type packing seal---hard packing sealing technique with respect to soft packing seal, overcome the shortcoming of soft packing seal exactly, utilize engineering plastics such as teflon, inorganic material, soft, hard metal and alloy material thereof are made the moulding filler of various structures and are implemented sealing, so the hard packing sealing has higher heat-resisting, withstand voltage and high speed performance with respect to soft packing seal, be usually used in the sealing of highly professional reciprocating shaft, structure is comparatively complicated.
The objective of the invention is to: provide a kind of and not only can solve soft packing seal and produces the wearing and tearing inequality because of radial pressure is uneven, influence the old problem of sealability, and use gland sealed structural type, more additional accessories are realized sealing of soft packing seal and hard packing and non-contact gap sealing.Simultaneously, with the method for regulating and control radial seal pressure (during contact seal) or radial seal gap (during the non-contact gap sealing), add break-in, cooling or lubricant method, realize that radial seal remains the optimal seal state, axially leak free again seal element of static seal and encapsulating method thereof.
Basic design of the present invention is: select for use the intensity that is suitable for sealing the operating mode characteristics most enough big, the sealing material that Young's modulus is enough little, be designed to have various forms of radial sealing surfaces and axial static seal end-face structure, perhaps with other seal elements of the radial seal that can satisfy various seal type different sealing performance characteristics and axial end static seal needs, the sleeve member of the combined structure of subsidy Sealing, with be combined in this sleeve member outer (shaft sealing with) or in (hole sealing with) limit, and use rectangle, the metal of trapezoidal prismatic shapes, nonmetal spring thread is made the sleeve type combined sealing component that the afterburning element of the torsional spring type with various forms of end constructions is formed, according to fixed cover (looking sealing needs and can make one with stuffing box), sleeve type combined sealing component, but the movable sheath of transmitting torque order (looking sealing needs and can change) is assembled in axle with various structural type hold-down mechanisms and hole with (but the two end part of torsional spring type reinforcing element be fixed on respectively to have separately with the axial static seal end-face structure of sleeve member be complementary in the movable sheath of the fixed cover of end-face structure and transmitting torque) in the stuffing seal.When implementing sealing, but the radial pressure that the movable sheath of at first using transmitting torque produces to the afterburning element transmission sealing required torque of torsional spring type, force the elasto plastic deformation of sleeve member (driving the seal element combined, subsidy Sealing) contract (during shaft sealing) or expand (when the hole seals) with sleeve member, regulate and control the radial pressure (during contact seal) that sealing is paid with this, or radial clearance (during the non-contact gap sealing), make radial seal be in the optimum state.But utilize impacting force because of hold-down mechanism to be created in fixed cover, the movable sheath of sleeve member transmitting torque, the hold-down mechanism static friction countertorque between the end face that contacts simultaneously, pin this best radial seal state, add break-in, cooling or lubricant method, realize that radial seal is in the optimal seal state all the time, axially static seal does not have leakage again.
When sleeve type combined sealing component is in running order, be sleeved in the afterburning element of torsional spring type or outer sleeve member just is being subjected to radial pressure from the afterburning element of torsional spring type, be in the elasto plastic deformation state that contracts or expand, has initial stress, so sleeve member internal stress state is the same with the combinatorial cylinders of the radius interference state with initial stress, can bear bigger outside inwards pressure equally.
Obviously the sleeve member among the present invention is not only to bear sealing system pressure and load but also play all multi-functional key members such as guiding, sealing.When selecting the sleeve member material, should be according to the intensity of all multifactor and materials of the medium, pressure, load character, operating temperature, speed etc. of sealing, many aspect of performances such as Young's modulus, media-resistant, heat-resisting, shock-resistant, withstand voltage, wear-resisting, thermal conductivity, dimensional stability, thermal distortion, friction factor are taken all factors into consideration.
Present selectable sleeve member material is a lot: as the various macerates of engineering plastics such as the teflon that strengthens modification and alloy thereof, graphite and various mild alloys etc.Should select for use to be suitable for sealing operating mode most, intensity is enough big, and the material that Young's modulus is enough little is made the not too sleeve member during the not too big sealing operating mode of high loading of pressure.
When if intensity (especially compressive strength) can not satisfy the sealing needs, utilize the metallic material that intensity is bigger, Young's modulus is higher, be designed to have out structure such as uniform groove, uniform lobe, opening, many spaces be cellular, and the compression-member that can improve axial compression strength and uniform distortion function is enough little with Young's modulus again, the mutually compound or sleeve member that combines of the quality seal material that insufficient strength is big.
It is hollow to adopt metallic sheet stock to make during as high temperature, high pressure, low speed sealing operating mode, closed sleeve member with structure radial sealing surfaces such as circular arc static seal end-face structure and cylindrical, corrugated, spill, convex, cydariforms, or sleeve member mutually compound with the enough little sealing material of Young's modulus again or that combine.
According to the sealing needs, the also metallic sheet stock of available high elastic modulus, make sleeve member with circular arc static seal end face and non-radial-sealing formula sealing surface structure, compound with the enough little sealing material of Young's modulus again or be combined into sleeve member, or the sleeve member that can link with cooling or lubrication system.
Sleeve type combined sealing component among the present invention can be used for can receiving how better effect in the sealing of multiple forms of motion.Such as, when being used for the sealing of oil cylinder, piston rod, also can receiving guiding, sealing, assembling and debug multiple effects such as more easy.
The not only available seal element of the present invention is used for seal arrangement, also can be used as series product development production, and new product such as the seal element that makes new advances that utilizes the present invention to develop, various pipe joint, plunger pump, plunger type valve.
Obviously the present invention has many uses, and now proposes 4 kinds of case study on implementation:
1, can be used on the soft packing seal embodiment of reactor stirring shaft.
2, employing and this special hermetically-sealed embodiments of sealing combined sleeve type combined sealing component to the oil cylinder piston bar.
3, with rolling bearing gland form high-speed rotating shaft is realized the embodiment of non-contact gap sealing.
4, the combined sleeve type combined sealing component of employing and Glais ring is to the hermetically-sealed embodiments of oil cylinder piston.
Description of drawings
Fig. 1 is the principle assumption diagram of reactor stirring shaft soft packing seal.
1, but the afterburning element 5 of the movable sheath 4 of reactor stirring shaft 2, movable sheath collet threaded end cap 3 transmitting torques, torsional spring type, intensity are enough big, the metallic sheath barrier part 6 that Young's modulus is enough little, soft packing 7, fixed cover 8, housing 9, soft packing collet threaded cover 10, clamping sleeve 11, cooling or lubricated mouth 12, stripped nut 13, sealing gasket.
Fig. 2 is the principle assumption diagram that adopts the sleeve type combined sealing component sealing of this special envelope.
But 1, the movable sheath 4 of piston rod 2, movable sheath collet threaded end cap 3 transmitting torques, the afterburning element 5 of torsional spring type, sleeve member 6, this special envelope 7, cylinder cover 8, cylinder barrel 9, guide sleeve 10, dust sealing ring recess 11, stripped nut 12, O type rubber seal
Fig. 3 is contactless clearance seal principle assumption diagram.
But 1, the movable sheath 4 of sealed axle 2, movable sheath collet threaded end cap 3 transmitting torques, the afterburning element 5 of torsional spring type, uniform lobe compression-member 6, sleeve member 7, bearing gland 8, casing 9, rolling bearing 10, spacer 11, the stripped nut opened
The sleeve type combined sealing component of Fig. 4 employing and Glais ring is to oil cylinder piston sealing principle structural drawing.
But 1, piston rod 2, movable sheath 4, the afterburning element 5 of torsional spring type, sleeve member 6, Glais ring 7, fixed cover 8, cylinder barrel 9, spring ring 10, spacer ring 11, key 12, O type rubber seal with end face clutch 3 transmitting torques of auto-lock function.
Claims (4)
1, the present invention not only can solve soft packing seal produces wearing and tearing because of radial pressure is uneven uneven, influence the old problem of sealability, and can be widely used in spool sealing with the contact-type elastic packing in hole and the non-resilient sealing of contact-type and non-contact gap.It is characterized in that; By utilizing intensity enough big, the sealing material that Young's modulus is enough little, be designed to have various forms of radial sealing surfaces and axial static seal end-face structure, or with have the radial seal that can satisfy all kinds sealability characteristics and other seal elements of axial end static seal, the sleeve member of the combined structure of subsidy Sealing, with be combined in before note sleeve member outer (shaft sealing with) or in the sleeve type combined sealing component formed of the afterburning element of torsional spring type on (hole sealing with) limit, according to fixed cover, sleeve type combined sealing component, but the movable sheath of transmitting torque order (looking sealing needs and can change to some extent) is assembled in axle and uses in the stuffing seal with the hole.Be complementary in the movable sheath of the fixed cover of end-face structure and transmitting torque but simultaneously the two end part of the afterburning element of torsional spring type are fixed on respectively to have separately with the axial static seal end-face structure of sleeve member.
When implementing sealing, but the movable sheath by transmitting torque seals required torque to the afterburning element transmission of torsional spring type earlier, moment of torsion makes the afterburning element of torsional spring type produce radial pressure and forces sleeve member that the required radial shift of sealing takes place, and regulates radial pressure (during contact seal) or the radial clearance (during the non-contact gap sealing) that sealing pays with this and makes radial seal be in the optimal seal state.Simultaneously because the existence of impacting force, but contact at the movable sheath of fixed cover, sleeve member transmitting torque, hold-down mechanism etc. and to produce the static friction countertorque between the end face, make and respectively contact end face and be in locking state, add break-in, cooling or lubricant method again, realize that radial seal is in the optimum state, the axial end static seal does not have leakage again.
2, in sleeve type combined sealing component described in the claim 1, be combined in the afterburning element of torsional spring type or outer sleeve member, be the sealing material of selecting enough little one or more of the enough big Young's modulus of various macerates, soft metal and alloy equal strength thereof of the engineering plastics such as teflon of modification and alloy thereof, graphite for use, make and have various radial sealing surfaces and axial static seal end-face structure; Or with other seal elements, subsidy Sealing combined sleeve member; Or with the metallic material of hard intensity, high elastic modulus, make and have uniform axial groove, open compression-members such as uniform lobe, opening, compound or be combined into and have various radial sealing surfaces and axial static seal face structure with the enough little sealing material of Young's modulus again; Or can with other seal elements, the sleeve member of subsidy Sealing combined structure.
3, in sleeve type combined sealing component described in the claim 1, be combined in the afterburning element of torsional spring type or outer sleeve member, be with the high elastic modulus metallic sheet stock make hollow, have a radially closed sleeve member of sealing surface structure such as axial circular arc static seal face structure and cylindrical, corrugated, spill, convex, cydariform, perhaps mutually compound with the enough little sealing material of the Young's modulus again or sleeve member that combines.
4, in sleeve type combined sealing component described in the claim 1, being combined in the afterburning element of torsional spring type or outer sleeve member, is to make sleeve member hollow, that have axial circular arc static seal end-face structure and radially non-enclosed radial sealing surfaces structure with the metallic sheet stock of high elastic modulus; Or this sleeve member is mutually compound with other sealing materials again or the sleeve member that combines, and the sleeve member that can link with cooling or lubrication system.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101668218A CN101038035A (en) | 2006-12-12 | 2006-12-12 | Sleeve type combined sealing component and sealing method thereof |
| CNU200720306321XU CN201202812Y (en) | 2006-12-12 | 2007-12-10 | Telescope-feed combined sealing element |
| PCT/CN2007/003531 WO2008071084A1 (en) | 2006-12-12 | 2007-12-11 | Combined sleeve seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101668218A CN101038035A (en) | 2006-12-12 | 2006-12-12 | Sleeve type combined sealing component and sealing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101038035A true CN101038035A (en) | 2007-09-19 |
Family
ID=38889114
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101668218A Pending CN101038035A (en) | 2006-12-12 | 2006-12-12 | Sleeve type combined sealing component and sealing method thereof |
| CNU200720306321XU Expired - Fee Related CN201202812Y (en) | 2006-12-12 | 2007-12-10 | Telescope-feed combined sealing element |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720306321XU Expired - Fee Related CN201202812Y (en) | 2006-12-12 | 2007-12-10 | Telescope-feed combined sealing element |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN101038035A (en) |
| WO (1) | WO2008071084A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008071084A1 (en) * | 2006-12-12 | 2008-06-19 | Caiyun Li | Combined sleeve seal |
| CN103836195A (en) * | 2012-11-26 | 2014-06-04 | 徐州徐工随车起重机有限公司 | Revolving sealing structure and revolving distributor |
| CN104279332A (en) * | 2013-07-08 | 2015-01-14 | 株式会社电装 | Sealing arrangement |
| CN109812581A (en) * | 2019-02-26 | 2019-05-28 | 浙江兰天机械密封件有限公司 | A kind of dry-grinding type combination sealing arrangement |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362352B (en) * | 2020-10-27 | 2021-12-17 | 中国船舶重工集团公司第七0三研究所 | Axial compresses tightly turns into radial sealed tower swirler flow test device |
| CN113623672A (en) * | 2021-06-24 | 2021-11-09 | 有能集团江苏威同电气设备有限公司 | Built-in smoke and air isolation system of plug board isolation door |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4067407A (en) * | 1976-06-08 | 1978-01-10 | Greene, Tweed & Co., Inc. | Annular seal |
| DE3733970A1 (en) * | 1987-10-08 | 1989-04-27 | Freudenberg Carl Fa | ANTI-TWISTING |
| CN2035411U (en) * | 1988-06-21 | 1989-04-05 | 杜忠祥 | Torsion spring clutch |
| CN2152927Y (en) * | 1992-12-28 | 1994-01-12 | 朱雨秀 | Sealing device for end surface of centrifugal pump spindle |
| US6098986A (en) * | 1997-05-16 | 2000-08-08 | Aileendonan Research Pty Ltd | Seal |
| CN2467823Y (en) * | 2000-09-19 | 2001-12-26 | 李怀仁 | Sealing well water pump |
| CN2795564Y (en) * | 2005-04-28 | 2006-07-12 | 李川 | Rubber-plastic lip composite oil seal |
| CN101038035A (en) * | 2006-12-12 | 2007-09-19 | 李採云 | Sleeve type combined sealing component and sealing method thereof |
-
2006
- 2006-12-12 CN CNA2006101668218A patent/CN101038035A/en active Pending
-
2007
- 2007-12-10 CN CNU200720306321XU patent/CN201202812Y/en not_active Expired - Fee Related
- 2007-12-11 WO PCT/CN2007/003531 patent/WO2008071084A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008071084A1 (en) * | 2006-12-12 | 2008-06-19 | Caiyun Li | Combined sleeve seal |
| CN103836195A (en) * | 2012-11-26 | 2014-06-04 | 徐州徐工随车起重机有限公司 | Revolving sealing structure and revolving distributor |
| CN103836195B (en) * | 2012-11-26 | 2016-06-29 | 徐州徐工随车起重机有限公司 | Rotary sealing structure and revolution allotter |
| CN104279332A (en) * | 2013-07-08 | 2015-01-14 | 株式会社电装 | Sealing arrangement |
| CN109812581A (en) * | 2019-02-26 | 2019-05-28 | 浙江兰天机械密封件有限公司 | A kind of dry-grinding type combination sealing arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN201202812Y (en) | 2009-03-04 |
| WO2008071084A1 (en) | 2008-06-19 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |