CN105889518A - Enhanced oil seal and manufacturing process thereof - Google Patents

Enhanced oil seal and manufacturing process thereof Download PDF

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Publication number
CN105889518A
CN105889518A CN201610366978.9A CN201610366978A CN105889518A CN 105889518 A CN105889518 A CN 105889518A CN 201610366978 A CN201610366978 A CN 201610366978A CN 105889518 A CN105889518 A CN 105889518A
Authority
CN
China
Prior art keywords
lip
seal
skeleton
oil sealing
sealing
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
CN201610366978.9A
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Chinese (zh)
Inventor
刘跃云
温青建
刘相平
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.)
CHENGDU SHENGBANG SEALS Co Ltd
Original Assignee
CHENGDU SHENGBANG SEALS 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 CHENGDU SHENGBANG SEALS Co Ltd filed Critical CHENGDU SHENGBANG SEALS Co Ltd
Priority to CN201610366978.9A priority Critical patent/CN105889518A/en
Publication of CN105889518A publication Critical patent/CN105889518A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16J15/3208Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • 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
    • 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
    • F16J15/3248Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
    • 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
    • F16J15/3284Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

The present invention provides an enhanced oil seal and a manufacturing process thereof. The enhanced oil seal comprises a sealing body, a framework and a baffle. The sealing body and the framework are fixedly connected into a whole. The cross section of the framework is of an L-shaped structure. The cross section of the baffle is of a U-shaped structure. The bottom of the baffle is provided with a through hole. The outer wall of the baffle is fixedly connected with the inner wall of the framework. The baffle and the formwork jointly form an oil seal supporting part of a C-shaped frame body structure. A protruding main sealing lip is formed in the oil seal. The main sealing lip is opposite to the through hole in the bottom of the baffle. The manufacturing process of the enhanced oil seal comprises the following steps that firstly, the framework is subjected to sulfuration treatment to form the sealing body and the main sealing lip; then, a spring is installed on the sealing body opposite to the main sealing lip; and finally, the baffle is installed on the end port portion of the framework, and the baffle and the framework jointly form the C-shaped frame body structure. By means of the enhanced oil seal, the rigidity and the sealing performance of the oil seal can be greatly improved, and the work life of the oil seal is prolonged.

Description

A kind of enhancement mode oil sealing and manufacturing process thereof
Technical field
The present invention relates to oil seal technique field, especially relate to a kind of enhancement mode oil sealing and manufacturing process thereof.
Background technology
Traditional oil seal product is to be consolidated, by seal, skeleton and spring, the sealing member formed, and is coated with bone according to seal The degree of frame is different, can be divided into encapsulated oil sealing and half encapsulated oil sealing.Described encapsulated oil sealing refers on external cylindrical surface close Envelope body is coated with skeleton completely, and half described encapsulated oil sealing refers to that on external cylindrical surface, seal has simply been coated with of skeleton Point.
In traditional oil seal product, owing to supporting part therein is simple L-shaped structure so that oil sealing when mounted, Requirement to installation method is higher, if installation method is improper, is easy to send out inside the cylindrical oral area of oil sealing and outer face Change shape, and therefore, oil sealing cannot form preferable operating position after mounting, thus affects the sealing property of oil sealing; It addition, the dust-proof effect of traditional oil seal product is the most inconspicuous, it is only applicable to the workplace that dust is little.At oil When sealing in running order, it occurs directly to contact with sealed medium (such as lubricating oil etc.), causes the close of oil sealing Seal surface plays pendulum because of the directly impact by sealed medium such as lubricating oil etc., so that oil sealing Lip be susceptible to leakage, greatly have impact on the sealing effectiveness of oil sealing, also reduce the working life of oil sealing.
Summary of the invention
The technical problem to be solved in the present invention is: the problem existed for prior art, it is provided that a kind of enhancement mode oil sealing and Its manufacturing process, strengthens the sealing property of oil sealing, improves the working life of oil sealing.
The technical problem to be solved in the present invention realizes by the following technical solutions: a kind of enhancement mode oil sealing, including sealing Body, skeleton and baffle plate, described seal and skeleton are consolidated into one, the L-shaped structure in described skeleton cross section, described gear Plate cross section takes the shape of the letter U structure, offers through hole bottom it, fixing between its outer wall with inboard wall of skeleton is connected, by baffle plate and bone Frame is collectively forming the oil sealing supporting part of C-shaped frame structure, and described oil sealing is internally formed the primary seal lip of projection, described master Sealing lip is relative with the through hole being positioned at baffle bottom.
Preferably, turnup structure is formed between spinal bend portion and the seal on described skeleton.
Preferably, also including spring, described spring is relative with primary seal lip, and and seal between be mutually socketed.
Preferably, described seal consolidating the first secondary sealing lip, the described first secondary sealing lip is relative with primary seal lip.
Preferably, described seal consolidates the 3rd secondary sealing lip, the described 3rd secondary sealing lip be positioned at primary seal lip with Between first secondary sealing lip.
Preferably, described seal consolidating the second secondary sealing lip, the described second secondary sealing lip is positioned at the first secondary sealing Between lip and the 3rd secondary sealing lip.
Preferably, the 3rd described secondary sealing lip and/or the labial surface of the second secondary sealing lip and/or the first secondary sealing lip set Put convex closure.
Preferably, the outer surface of described seal arranges ripple struction.
A kind of enhancement mode oil sealing manufacturing process, comprises the steps:
First, skeleton is carried out vulcanizing treatment, form seal and primary seal lip;
Then, the seal relative with primary seal lip is installed spring;
Finally, press-fit baffle plate in skeleton port part, make fixing between baffle plate outer wall and inboard wall of skeleton connection, and by baffle plate With the oil sealing supporting part that skeleton is collectively forming C-shaped frame structure.
Preferably, described skeleton is carried out vulcanizing treatment carrying out at twice, the curing temperature that primary vulcanization processes is 175 ± 5 DEG C, the sulfidization molding time is 300 seconds ± 50 seconds, and vulcanizing treatment is the base in primary vulcanization molding for the second time Continuing vulcanizing treatment on plinth, its curing temperature is 200 ± 10 DEG C, and the sulfidization molding time is 12 hours-16 hours.
Compared with prior art, the invention has the beneficial effects as follows: between baffle plate outer wall and the inboard wall of skeleton in oil sealing Fixing connection, and it is collectively forming C-shaped frame structure by baffle plate and skeleton, drastically increase the rigidity of oil sealing so that it is It is not susceptible to deformation when mounted;When oil sealing and rotary shaft with the use of time, by seal in C-shaped frame structure Portion forms the primary seal lip of projection and coordinates with rotary shaft, to be effectively prevented the generation of leakage, and can also pole by baffle plate The earth weakens the media such as lubricating oil and directly impacts the oil seal lip local vibration distortion caused by the seal being in contact with it, Thus greatly alleviate the leakage of oil even avoiding oil sealing, make the sealing property of oil sealing significantly be strengthened, meanwhile, also The working life making oil sealing is significantly improved.
Accompanying drawing explanation
Fig. 1 is the structural map (half encapsulated oil sealing, semi-cutaway) of the present invention a kind of enhancement mode oil sealing.
Fig. 2 is the structural map (encapsulated oil sealing, semi-cutaway) of the present invention a kind of enhancement mode oil sealing.
Fig. 3 is the flow chart of the present invention a kind of enhancement mode oil sealing manufacturing process.
Labelling in figure: 1-seal, 2-skeleton, 3-baffle plate, 4-spring, 5-primary seal lip, the secondary sealing lip of 6-the 3rd, The secondary sealing lip of 7-second, 8-convex closure, the secondary sealing lip of 9-first, inside 10-oil sealing outer end, 11-ripple struction, 12- Rotary shaft, 21-spinal bend portion.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with the accompanying drawings and be embodied as The present invention is described in detail for example.Should be appreciated that specific embodiment described herein only in order to explain the present invention, It is not intended to limit the present invention.
Enhancement mode oil sealing as shown in Figure 1 and Figure 2, mainly includes seal 1, skeleton 2 and baffle plate 3, described skeleton The 2 L-shaped structures in cross section, described baffle plate 3 cross section takes the shape of the letter U structure, offers through hole, described baffle plate 3 bottom baffle plate 3 Outer wall and the inwall of skeleton 2 between form a fixed connection structure with interference fit, by baffle plate 3 with skeleton 2 altogether With the oil sealing supporting part defining C-shaped frame structure.Described seal 1 is consolidated into one with skeleton 2, works as sealing During body 1 simply cladding skeleton 2 a part of, i.e. form the encapsulated oil sealing of half as shown in Figure 1;When seal 1 is complete During cladding skeleton 2, i.e. form encapsulated oil sealing as shown in Figure 2.Wherein, described seal 1 is at oil sealing supporting part Be internally formed projection primary seal lip 5, described primary seal lip 5 is relative with the through hole being positioned at bottom baffle plate 3.Described Seal 1 form flanging bore structure, so that the spinal bend on skeleton 2 mutually consolidating position with skeleton 2 afterbody Turnup structure is formed, so so that inside oil sealing outer end on oil sealing 10 positions between portion 21 and seal 1 There is good rigidity, and then make oil sealing be not susceptible to deformation when mounted.
Generally, oil seal product is mounted between cylinder body and rotary shaft, and oil-seal outer and cylinder body are installed between endoporus with mistake The fit system that is full of forms static sealing structure, is the occasion of steel part for cylinder body, it is adaptable to half as shown in Figure 1 is encapsulated Oil sealing, is the occasion of aluminum component for cylinder body, it is adaptable to encapsulated oil sealing as shown in Figure 2.Due to baffle plate 3 and skeleton 2 It is collectively forming the oil sealing supporting part of C-shaped frame structure, it can be ensured that coordinate good between oil-seal outer with cylinder body installation endoporus Good.As shown in Figure 1 and Figure 2, ripple struction 11 can be set at the outer surface of seal 1, the most both can reduce oil The assembly force of envelope, and nor affect on static seal effect after assembling.
Seal 1 in oil seal product can use high elastic rubber material, acts primarily as sealing function, skeleton 2, gear Plate 3 can use cold-rolled steel molding, and the assembling being mainly used as oil seal product supports.As shown in Figure 1 and Figure 2, increasing is worked as When strong type oil sealing coordinates with rotary shaft 12, described rotary shaft 12 runs through the through hole bottom primary seal lip 5, baffle plate 3, Wherein, between described primary seal lip 5 and rotary shaft 12, form dynamic seal (packing), be in C-shaped frame structure to stop The medium such as lubricating oil flow to the air side of oil sealing;Formed between through hole and rotary shaft 12 bottom described baffle plate 3 By baffle plate 3, the matched in clearance of 1-2mm, can stop that the media such as lubricating oil directly impact primary seal lip 5 and associate position. Owing to the speed of the media such as the lubricating oil that is in C-shaped frame structure and liquid level are with rotary shaft 12 working condition Change and change, if being not provided with baffle plate 3, the medium such as lubricating oil will directly impact the seal 1 being in contact with it, from And cause the local vibration distortion of oil seal lip, and ultimately causing leakage of oil occurs, after baffle plate 3 is set, and can be greatly Weaken the media such as lubricating oil and directly impact the impact strength of the seal 1 being in contact with it, thus greatly alleviate and even keep away Exempt from the leakage of oil of oil sealing, made the sealing property of oil sealing significantly be strengthened, meanwhile, also made the working life of oil sealing be able to Significantly improve.
In order to improve the sealing property of oil sealing further, can increase on seal 1 and spring 4 is set, described spring 4 For spring winding steel wire, mutually it is socketed between itself and seal 1, and relative with primary seal lip 5, as shown in Figure 1, Figure 2 Shown in, can be that oil seal lip provides permanent compensation radial force by spring 4, it is ensured that primary seal lip 5 and rotary shaft Dynamic sealing performance between 12.Further, since seal 1 forms turnup structure with skeleton 2 afterbody, can be on-demand Seal 1 to consolidate some groups of pair sealing lips.As shown in Figure 1 and Figure 2, seal 1 has consolidated the 3rd The secondary secondary sealing lip of sealing lip 6, second 7 and the first secondary sealing lip 9, the secondary sealing lip 9 of described first and primary seal lip 5 Relatively, the described 3rd secondary sealing lip 6 is between primary seal lip 5 and the first secondary sealing lip 9, and described second pair seals Lip 7 is between the first secondary sealing lip 9 and the 3rd secondary sealing lip 6.In order to improve the consolidation strength of secondary sealing lip, institute The 3rd secondary secondary sealing lip of sealing lip 6, second 7, the first secondary sealing lip 9 stated respectively be integrated between seal 1 Molding structure.It is collectively forming palace fan's formula multiple tracks dustproof construction by arranging the secondary sealing lip of many groups and primary seal lip 5, permissible Repeatedly, effectively stop the impurity such as dust to enter near primary seal lip 5, thus be effectively prevented oil seal lip abrasive particle mill Damaging the oil seal failure leakage of oil caused, this structure oil sealing is particularly well-suited to the occasion that working environment is the most severe, such as, becomes Speed case and the relevant oil sealing of vehicle bridge.
Under rotary shaft 12 is in the working condition of higher rotation speed, in order to avoid primary seal lip 5 and the first secondary sealing 6 Between, between the 3rd secondary sealing lip 6 and the second secondary sealing lip 7, the second secondary sealing lip 7 and the first pair sealing lip 9 it Between form vacuum, reduce because first secondary seals 6, second secondary sealing lip the 7, first pair sealing lip 9 and rotary shaft meanwhile 12 too much contact occur dry friction to produce more heat transfer, can the 3rd secondary secondary sealing lip 7 of sealing lip 6, second, It is respectively provided with some convex closures 8, as shown in Figure 1 and Figure 2 on the labial surface of the first secondary sealing lip 9;It is all right that convex closure 8 is set Guarantee primary seal lip 5 and first secondary seal between 6, between the 3rd secondary sealing lip 6 and the second secondary sealing lip 7, second Air is there is between secondary sealing lip 7 and the first secondary sealing lip 9, to ensure the pressure balance of primary seal lip 5 both sides, anti- Only there is big deformation in oil sealing in the course of the work, is conducive to improving the service life of oil sealing.
The manufacturing process of above-mentioned enhancement mode oil sealing, as it is shown on figure 3, specifically include following steps:
1st step, skeleton 2, baffle plate 3 preforming processing, further skeleton 2 can be made surface and process, be beneficial to The vulcanization of rubber is bonding and antirust.
2nd step, carries out primary vulcanization process to skeleton 2, according to seal 1 used high elastic rubber material Difference, its curing temperature is 170 DEG C, 175 DEG C, 180 DEG C, and the sulfidization molding time is between 250 seconds-350 seconds, logical It it is often 300 seconds.Processed by this primary vulcanization, the basic forming such as the structure of oil sealing, size.
3rd step, after rebuilding the oil sealing of basic forming, continues the oil sealing basis in primary vulcanization molding On carry out second time vulcanizing treatment, its curing temperature is 190 DEG C, 195 DEG C, 200 DEG C, 205 DEG C or 210 DEG C, root According to the difference of curing temperature, this second time sulfidization molding time is usually 12 hours-16 hours.At twice sulfuration After reason, the seal 1 of oil sealing, secondary including the secondary sealing lip 7, first of the secondary sealing lip of primary seal lip the 5, the 3rd 6, second Sealing lip 9, molding completely, form oil sealing semi-finished product.
4th step, installs spring 4 on the seal 1 relative with primary seal lip 5.
5th step, to oil sealing semi-finished product, comprises spring 4, after checking accordingly, in skeleton 2 port part pressure Dress baffle plate 3, makes fixing between baffle plate 3 outer wall with skeleton 2 inwall connection, and is collectively forming C by baffle plate 3 and skeleton 2 The oil sealing supporting part of shape frame structure.
6th step, packs the oil seal product completed, stores.
In the oil seal product of complete molding, it is connected due to fixing between baffle plate 3 outer wall with skeleton 2 inwall, and by keeping off Plate 3 and skeleton 2 are collectively forming C-shaped frame structure, can be greatly enhanced the integral rigidity of oil seal product so that it is Installation, work process are all not susceptible to deformation;By the secondary sealing lip 6, second of the primary seal lip the 5, the 3rd on oil sealing The secondary secondary sealing lip 9 of sealing lip 7, first seals with rotary shaft 12 respectively and coordinates, and can be effectively prevented the generation of leakage With stop the impurity such as external dust to enter inside oil sealing, thus significantly enhance the sealing property of oil sealing, and significantly improve The working life of oil sealing.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, it is noted that All any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included in this Within bright protection domain.

Claims (10)

1. an enhancement mode oil sealing, including seal (1) and skeleton (2), described seal (1) and skeleton (2) It is consolidated into one, it is characterised in that: also include baffle plate (3), the L-shaped structure in described skeleton (2) cross section, described gear Plate (3) cross section takes the shape of the letter U structure, offers through hole bottom it, fixing between its outer wall with skeleton (2) inwall is connected, Be collectively forming the oil sealing supporting part of C-shaped frame structure by baffle plate (3) and skeleton (2), described oil sealing is internally formed convex The primary seal lip (5) risen, described primary seal lip (5) is relative with the through hole being positioned at baffle plate (3) bottom.
A kind of enhancement mode oil sealing the most according to claim 1, it is characterised in that: the bone on described skeleton (2) Turnup structure is formed between frame bending part (21) and seal (1).
A kind of enhancement mode oil sealing the most according to claim 1, it is characterised in that: also include spring (4), described Spring (4) is relative with primary seal lip (5), and and seal (1) between be mutually socketed.
4. according to a kind of enhancement mode oil sealing described in any one of claim 1-3, it is characterised in that: described seal (1) the upper secondary sealing lip (9) of consolidation first, the described first secondary sealing lip (9) is relative with primary seal lip (5).
A kind of enhancement mode oil sealing the most according to claim 4, it is characterised in that: on described seal (1) Consolidating the 3rd secondary sealing lip (6), the described 3rd secondary sealing lip (6) is positioned at primary seal lip (5) and the first secondary sealing lip (9) between.
A kind of enhancement mode oil sealing the most according to claim 5, it is characterised in that: on described seal (1) The secondary sealing lip (7) of consolidation second, it is secondary with the 3rd close that the described second secondary sealing lip (7) is positioned at the first secondary sealing lip (9) Between envelope lip (6).
A kind of enhancement mode oil sealing the most according to claim 6, it is characterised in that: the secondary sealing lip (6) of described the 3rd And/or second secondary sealing lip (7) and/or the first secondary sealing lip (9) labial surface on convex closure (8) is set.
8. according to a kind of enhancement mode oil sealing described in any one of claim 1-3, it is characterised in that: described seal (1) outer surface arranges ripple struction (11).
9. an enhancement mode oil sealing manufacturing process, it is characterised in that: comprise the steps:
First, skeleton (2) is carried out vulcanizing treatment, form seal (1) and primary seal lip (5);
Then, the seal (1) relative with primary seal lip (5) installs spring (4);
Finally, press-fit baffle plate (3) in skeleton (2) port part, make between baffle plate (3) outer wall and skeleton (2) inwall Fixing connection, and the oil sealing supporting part of C-shaped frame structure it is collectively forming by baffle plate (3) and skeleton (2).
A kind of enhancement mode oil sealing manufacturing process the most according to claim 9, it is characterised in that: described to bone Frame (2) carries out vulcanizing treatment and carries out at twice, and the curing temperature that primary vulcanization processes is 175 ± 5 DEG C, is sulfided into The type time is 300 seconds ± 50 seconds, and vulcanizing treatment is continuation vulcanizing treatment on the basis of primary vulcanization molding for the second time, Its curing temperature is 200 ± 10 DEG C, and the sulfidization molding time is 12 hours-16 hours.
CN201610366978.9A 2016-05-27 2016-05-27 Enhanced oil seal and manufacturing process thereof Pending CN105889518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610366978.9A CN105889518A (en) 2016-05-27 2016-05-27 Enhanced oil seal and manufacturing process thereof

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Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108019518A (en) * 2016-10-31 2018-05-11 德纳汽车系统集团有限责任公司 Reciprocating air cylinder sleeve seal assembly
CN112793203A (en) * 2020-12-23 2021-05-14 重庆春阳密封制品有限公司 One-step forming method of high-low pressure bidirectional high-strength oil seal
CN114127449A (en) * 2019-09-04 2022-03-01 Nok株式会社 Sealing device

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JP3890756B2 (en) * 1998-07-01 2007-03-07 Nok株式会社 Sealing device
CN201521649U (en) * 2009-11-09 2010-07-07 青岛开世密封工业有限公司 Integrated oil seal
CN102829185A (en) * 2012-09-24 2012-12-19 青岛开世密封工业有限公司 Oil seal capable of preventing spring from falling off
CN202646711U (en) * 2012-06-12 2013-01-02 宁波丰茂远东橡胶有限公司 Oil seal structure resistant to high pressure and adaptable to shaft eccentricity
CN202708079U (en) * 2012-07-11 2013-01-30 成都盛帮密封件股份有限公司 Novel oil seal with dustproof auxiliary lip
CN104763810A (en) * 2014-07-25 2015-07-08 栾乔根 Lip-shaped framework seal ring
CN205654871U (en) * 2016-05-27 2016-10-19 成都盛帮密封件股份有限公司 Enhancement mode oil blanket

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3890756B2 (en) * 1998-07-01 2007-03-07 Nok株式会社 Sealing device
CN201521649U (en) * 2009-11-09 2010-07-07 青岛开世密封工业有限公司 Integrated oil seal
CN202646711U (en) * 2012-06-12 2013-01-02 宁波丰茂远东橡胶有限公司 Oil seal structure resistant to high pressure and adaptable to shaft eccentricity
CN202708079U (en) * 2012-07-11 2013-01-30 成都盛帮密封件股份有限公司 Novel oil seal with dustproof auxiliary lip
CN102829185A (en) * 2012-09-24 2012-12-19 青岛开世密封工业有限公司 Oil seal capable of preventing spring from falling off
CN104763810A (en) * 2014-07-25 2015-07-08 栾乔根 Lip-shaped framework seal ring
CN205654871U (en) * 2016-05-27 2016-10-19 成都盛帮密封件股份有限公司 Enhancement mode oil blanket

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108019518A (en) * 2016-10-31 2018-05-11 德纳汽车系统集团有限责任公司 Reciprocating air cylinder sleeve seal assembly
CN114127449A (en) * 2019-09-04 2022-03-01 Nok株式会社 Sealing device
CN112793203A (en) * 2020-12-23 2021-05-14 重庆春阳密封制品有限公司 One-step forming method of high-low pressure bidirectional high-strength oil seal

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