CN104728449A - Chinese-doughnut-shaped oil-back line oil seal - Google Patents

Chinese-doughnut-shaped oil-back line oil seal Download PDF

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Publication number
CN104728449A
CN104728449A CN201510135466.7A CN201510135466A CN104728449A CN 104728449 A CN104728449 A CN 104728449A CN 201510135466 A CN201510135466 A CN 201510135466A CN 104728449 A CN104728449 A CN 104728449A
Authority
CN
China
Prior art keywords
oil
drive back
back thread
oil seal
shape
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
CN201510135466.7A
Other languages
Chinese (zh)
Inventor
张守彦
徐淑强
李光旭
李汉华
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.)
SHANDONG DONG DU NEW MATERIAL TECHNOLOGY Co Ltd
Original Assignee
SHANDONG DONG DU NEW MATERIAL TECHNOLOGY Co Ltd
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 SHANDONG DONG DU NEW MATERIAL TECHNOLOGY Co Ltd filed Critical SHANDONG DONG DU NEW MATERIAL TECHNOLOGY Co Ltd
Priority to CN201510135466.7A priority Critical patent/CN104728449A/en
Publication of CN104728449A publication Critical patent/CN104728449A/en
Pending legal-status Critical Current

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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
    • F16J15/3244—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action

Abstract

The invention discloses a Chinese-doughnut-shaped oil-back line oil seal which comprises an oil seal frame, a rubber elastic body and a tightening spring. The lower end of the rubber elastic body is connected to one side of the oil seal frame. The tightening spring is arranged in the rubber elastic body. A double-way crossing type oil-back line is attached to the rubber elastic body. The oil seal has high pumping effect, leakage can be well prevented, in addition, double-way oil returning can be achieved, sealing performance is improved, meanwhile, an oil line cross section is in a D shape or a semicircle shape or an arc shape, a friction face can be decreased, the abrasion resistance of a product is improved, and product performance is prolonged.

Description

Twist shape oil drive back thread oil sealing
Technical field
The invention belongs to oil sealing, be specifically related to a kind of twist shape oil drive back thread oil sealing.
Background technique
At present, general two-way oil return line structure oil sealing structure is made up of oil tight skeleton, rubber elastomer and deflation spring, rubber elastomer is connected on oil tight skeleton, and tighten spring and be arranged in rubber elastomer, oil return thread structure is the structures such as splayed configuration, waveform or grid-shaped.
Notification number is CN2388421Y, and application number is 98236241.2, name is called that the patent of the dynamic rotation axis grease seal of two-way oil return line discloses so a kind of two-way oil return line structure oil sealing.This two-way oil return line structure oil sealing is due to the restriction of structure, and have a strong impact on running shaft and need the sealing effect at bidirectional rotation place and the working life of oil sealing, meanwhile, product realizability is poor, industrialized production ability.
The prior art patent No. is 98236241.2, a kind of dynamic rotary oil sealing with two-way oil return line is disclosed in the utility model patent specification of denomination of invention for " the dynamic rotary oil sealing of band two-way oil return line ", be made up of skeleton, rubber, spring, sealing lip and " eight " type oil drive back thread that mold pressing goes out that is circumferentially evenly arranged at sealing lip, triangular in shape or the quadrilateral of its oil drive back thread section, this oil sealing oil return thread structure complicated processing is produced inconvenient, and working life is short.
Summary of the invention
In order to overcome the problems referred to above that prior art field exists, the object of the invention is to, a kind of twist shape oil drive back thread oil sealing is provided, solving traditional oil drive back thread oil sealing sealing weak effect, the problems such as working life is short.
Twist shape oil drive back thread oil sealing provided by the invention, it comprises oil tight skeleton, rubber elastomer, deflation spring, the lower end of described rubber elastomer is connected on the side of oil tight skeleton, described deflation spring is arranged in rubber elastomer, described rubber elastomer is attached with bidirectional crossed type oil drive back thread.
Described bidirectional crossed type oil drive back thread is twist shape.
The cross section of described bidirectional crossed type oil drive back thread is D shape, semicircle or arc.
Twist shape oil drive back thread oil sealing provided by the invention, its beneficial effect is, this oil sealing has stronger pump-absorb action, can be good at preventing from revealing, and in addition, energy two-way oil return, improves sealability; Meanwhile, oily line cross section is D shape, semicircle or arc, can reduce rubbing surface, improves the wear-resisting property of product, extends product performance.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention.
Mark in figure:
1. tighten spring; 2. oil tight skeleton; 3. rubber elastomer; 4. bidirectional crossed type oil drive back thread.
Embodiment
With reference to the accompanying drawings, in conjunction with the embodiments, to twist shape oil drive back thread oil sealing provided by the invention, be described in detail.
Embodiment
With reference to Fig. 1, the twist shape oil drive back thread oil sealing of the present embodiment, comprise oil tight skeleton 2, rubber elastomer and deflation spring 1, described rubber elastomer 3 is connected on described oil tight skeleton 2, described deflation spring 1 is arranged in described rubber elastomer 3, and rubber elastomer 3 is attached with bidirectional crossed type oil drive back thread 4.
Rubber elastomer 3 is attached with bidirectional crossed type oil drive back thread 4 in twist shape, and twist shape oil return thread structure has stronger pump-absorb action, can be good at preventing from revealing, and in addition, energy two-way oil return, improves sealability; The cross section of the bidirectional crossed type oil drive back thread 4 that rubber elastomer 3 adheres to is D shape, semicircle or arc, can reduce rubbing surface, improves the wear-resisting property of product, extends life of product.

Claims (3)

1. a twist shape oil drive back thread oil sealing, it is characterized in that: it comprises oil tight skeleton, rubber elastomer, deflation spring, the lower end of described rubber elastomer is connected on the side of oil tight skeleton, described deflation spring is arranged in rubber elastomer, described rubber elastomer is attached with bidirectional crossed type oil drive back thread.
2. twist shape oil drive back thread oil sealing according to claim 1, is characterized in that: described bidirectional crossed type oil drive back thread is twist shape.
3. twist shape oil drive back thread oil sealing according to claim 1 and 2, is characterized in that: the cross section of described bidirectional crossed type oil drive back thread is D shape, semicircle or arc.
CN201510135466.7A 2015-03-26 2015-03-26 Chinese-doughnut-shaped oil-back line oil seal Pending CN104728449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510135466.7A CN104728449A (en) 2015-03-26 2015-03-26 Chinese-doughnut-shaped oil-back line oil seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510135466.7A CN104728449A (en) 2015-03-26 2015-03-26 Chinese-doughnut-shaped oil-back line oil seal

Publications (1)

Publication Number Publication Date
CN104728449A true CN104728449A (en) 2015-06-24

Family

ID=53452640

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510135466.7A Pending CN104728449A (en) 2015-03-26 2015-03-26 Chinese-doughnut-shaped oil-back line oil seal

Country Status (1)

Country Link
CN (1) CN104728449A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105042083A (en) * 2015-08-20 2015-11-11 安徽江淮汽车股份有限公司 Oil seal of oil pump
CN105465369A (en) * 2015-12-18 2016-04-06 宁波美豪汽车部件有限公司 Sealing lip applied to rotating shaft and provided with oil return lines and lip sealing ring thereof
CN110914580A (en) * 2017-07-21 2020-03-24 尼得科Gpm有限公司 Sealing device with chamber
CN112747117A (en) * 2020-07-22 2021-05-04 台州恩普密封件有限公司 Ultrahigh-speed dry-grinding-resistant bidirectional rotating PTFE oil seal

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6220972A (en) * 1985-07-20 1987-01-29 Nok Corp Oil seal with thread and its forming block
CN2388421Y (en) * 1998-08-14 2000-07-19 十堰东森汽车密封件有限公司 Dynamic rotation axis grease seal with two-way oil return line
JP2010084819A (en) * 2008-09-30 2010-04-15 Nok Corp Sealing device
CN101701629A (en) * 2009-11-28 2010-05-05 烟台润蚨祥油封有限公司 Rotary oil seal of multi-head spiral oil return line
CN201723719U (en) * 2010-04-21 2011-01-26 陕西奉航橡胶密封件有限公司 Oil seal with bidirectional chiasma type return oil line structure
CN201787078U (en) * 2010-09-18 2011-04-06 十堰东森汽车密封件有限公司 Combined rotary-axle seal piece
CN204573100U (en) * 2015-03-26 2015-08-19 山东东都新材料科技有限公司 Twist shape oil drive back thread oil sealing

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6220972A (en) * 1985-07-20 1987-01-29 Nok Corp Oil seal with thread and its forming block
CN2388421Y (en) * 1998-08-14 2000-07-19 十堰东森汽车密封件有限公司 Dynamic rotation axis grease seal with two-way oil return line
JP2010084819A (en) * 2008-09-30 2010-04-15 Nok Corp Sealing device
CN101701629A (en) * 2009-11-28 2010-05-05 烟台润蚨祥油封有限公司 Rotary oil seal of multi-head spiral oil return line
CN201723719U (en) * 2010-04-21 2011-01-26 陕西奉航橡胶密封件有限公司 Oil seal with bidirectional chiasma type return oil line structure
CN201787078U (en) * 2010-09-18 2011-04-06 十堰东森汽车密封件有限公司 Combined rotary-axle seal piece
CN204573100U (en) * 2015-03-26 2015-08-19 山东东都新材料科技有限公司 Twist shape oil drive back thread oil sealing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
鲁选才，贺永军，杨维章等: "旋转轴唇形密封圈的设计与选材", 《特种橡胶制品》 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105042083A (en) * 2015-08-20 2015-11-11 安徽江淮汽车股份有限公司 Oil seal of oil pump
CN105465369A (en) * 2015-12-18 2016-04-06 宁波美豪汽车部件有限公司 Sealing lip applied to rotating shaft and provided with oil return lines and lip sealing ring thereof
CN110914580A (en) * 2017-07-21 2020-03-24 尼得科Gpm有限公司 Sealing device with chamber
CN112747117A (en) * 2020-07-22 2021-05-04 台州恩普密封件有限公司 Ultrahigh-speed dry-grinding-resistant bidirectional rotating PTFE oil seal
CN112747117B (en) * 2020-07-22 2023-10-03 台州恩普密封件有限公司 Ultra-high-speed dry-grinding-resistant bidirectional rotary PTFE oil seal

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PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
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Application publication date: 20150624