CN103574037A - Outside mounted type two-lip framework oil seal - Google Patents
Outside mounted type two-lip framework oil seal Download PDFInfo
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- CN103574037A CN103574037A CN201310639270.2A CN201310639270A CN103574037A CN 103574037 A CN103574037 A CN 103574037A CN 201310639270 A CN201310639270 A CN 201310639270A CN 103574037 A CN103574037 A CN 103574037A
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Abstract
The invention relates to a bearing box or gear box lubricating oil (grease) sealing device for a rotating shaft of mechanical equipment, in particular to an outside mounted type two-lip framework oil seal. The outside mounted type two-lip framework oil seal comprises a sealing lip, a crown part, a spring groove, a limiting step, a shoulder part, a back part, a waist part, a secondary lip and a locating groove, wherein an integral structure of the outside mounted type two-lip framework oil seal is formed by the sealing lip, the crown part, the spring groove, the limiting step, the shoulder part, the back part, the waist part, the secondary lip and the locating groove; the sealing lip is arranged on the outer side of the crown part; the spring groove is formed in the inner side of the crown part; the secondary lip is arranged on the outer side of the waist part; the outside mounted type two-lip framework oil seal further comprises a circular pad type framework and an L-shaped framework; the limiting step is integrally connected with the shoulder part, the back part, the secondary lip, the waist part, the crown part, the sealing lip, the spring groove, the circular pad type framework and the L-shaped framework; a spring is arranged in the spring groove. The secondary lip is used for preventing external impurities such as water vapor and smoke from entering a sealing cavity; the sealing lip is used for preventing oil (grease) in the sealing cavity from leaking outside. The oil seal thoroughly solves the problem of inconvenient online dismounting, has the advantages of simple structure, low cost, high adaptability and convenience in online replacement, and can totally replace a standard framework oil seal.
Description
Technical field
The present invention relates in a kind of machinery bearing housing or gear box lubricating oil (fat) seal arrangement, specifically a kind of external mounted Double-lip framework oil sealing for running shaft.
Background technique
Oil sealing on market (as GB GB/T9877.1～9877.3--1998 defined), its profile is integral ring-shaped closing structure, this structural entity good seal performance is easy for installation, but online dismounting is comparatively difficult.During online dismounting, must it be plucked out narrow space between Seal cage and running shaft with special tool, very difficult, and easily to running shaft, cause damage.So traditional standard outside framework oil seal is the inadaptable online requirement of changing.
Two split type combination oil seals (patent No. ZL 201120490390.7) of releasing in the market and make bit-type Split type framework oil seal (patent No. ZL 201220075751.6) by oneself and all possess to facilitate and mount and dismount online and seal the advantages such as reliable, effective assurance is provided to online replacing of rotation axis seal, but expensive because of it, only be applicable to online replacing or transformation, and be not suitable for just dress of batch.
Summary of the invention
The object of the invention is to solve prior art and dismantle online inconvenient problem, a kind of structure being connected as a single entity by sealing lip, bizet, spring groove, ring pulvilliform skeleton, L shaped skeleton, limited step, shoulder, back, waist, secondary lip, locating slot is provided, and mounting spring applies pretightening force to sealing lip in spring groove, installation and removal are convenient, seal reliable external mounted Double-lip framework oil sealing.
Solve the problems of the technologies described above by the following technical solutions:
A kind of external mounted Double-lip framework oil sealing, comprise the sealing lip, bizet, spring groove, limited step, shoulder, back, waist, secondary lip, the locating slot that form external mounted Double-lip framework oil sealing integrative-structure, sealing lip is positioned at bizet outside, spring groove is positioned at bizet inner side, secondary lip is positioned at waist outside, it is characterized in that, also comprises ring pulvilliform skeleton and L shaped skeleton, ring pulvilliform skeleton, L shaped skeleton are connected as a single entity, and are arranged in back, shoulder and limited step; Described limited step and shoulder, back, dust excluder lips, waist, bizet, sealing lip, spring groove are connected as a single entity, and are provided with spring in spring groove.
Further, described ring pulvilliform skeleton excircle part and L shaped skeleton bottom are structure as a whole.
Further, described ring pulvilliform skeleton is split type ring structure, is arranged in limited step and back.
Further, described L shaped skeleton is part split type ring structure, is arranged in shoulder and limited step, and the front end of L shaped skeleton is connected, and middle part and bottom are split type.
Further, described limited step is positioned on the excircle of shoulder and intersection, back, is connected as a single entity with shoulder and back.
Further, described ring pulvilliform skeleton and L shaped skeleton expose to oil sealing body completely or are coated in oil sealing body.
Further, axial two middle side parts in described back have locating slot.
According to technique scheme, ring pulvilliform skeleton of the present invention and the affixed one of L shaped skeleton or all-in-one-piece structure processed, not only solved well the support strength problem at shoulder and back, its part that is placed in limited step provides enough mechanical strengths to online dismounting.
According to technique scheme, ring pulvilliform skeleton of the present invention and L shaped skeleton are respectively split type and part split type structure, when not affecting product processing and product size and performance, to being dismantled and disassemble online, removing, provide convenience.
The present invention can make mould batch process, and complete alternate standard outside framework oil seal, with low cost, easy to use, is widely used.Installation method is identical with standard outside framework oil seal, and dismounting only needs flat mouth screw-driver to insert between limited step and equipment end cap and prize Seal cage, then cuts skeleton subdivision place with blade, can like a cork external mounted Double-lip framework oil sealing be removed.For next step, Split oil seal (or claiming open oil) that is applicable to installing being online installed facilitates.
Compared with prior art, remarkable result of the present invention is:
(1) while installing, not changing is the designed size of standard outside framework oil seal, space and installation method originally, and guarantees to realize sealability and the effect identical with standard outside framework oil seal.
(2) while dismantling online, only need flat mouth screw-driver to insert between external mounted Double-lip framework oil sealing limited step and equipment end cap external mounted Double-lip framework oil sealing is prized to Seal cage, then with blade, cut off rubber or other materials at skeleton subdivision place, i.e. dismountable external mounted Double-lip framework oil sealing.For next step, Split oil seal (or claiming open oil) that is applicable to installing being online installed facilitates.
(3) adopt ring pulvilliform skeleton and the affixed one of L shaped skeleton or all-in-one-piece structure processed, not only solved well the support strength problem at shoulder and back, its part that is placed in limited step provides enough mechanical strengths to online dismounting.
(4) the ring pulvilliform skeleton that adopted and L shaped skeleton are respectively split type and part split type structure, when not affecting product processing and product size and performance, to being dismantled and disassemble online, removing, provide convenience.
(5) simple in structure, to process easyly, cost is lower, strong adaptability, convenient dismounting online, can effectively increase work efficiency, save time and reduce cost of equipment maintenance.
(6) limited step design of bag skeleton in it, can substitute in traditional design for compressing traditional outside framework oil seal in the gland of Seal cage, has both saved the cost of gland, can suitably shorten again the axial dimension of equipment, can greatly save device fabrication cost.
Accompanying drawing explanation
Fig. 1 is plan view of the present invention.
Fig. 2 is sectional view of the present invention, is that Figure 1A-A is to sectional view.
Fig. 3 is erection drawing of the present invention.
In figure: sealing lip 1, bizet 2, spring groove 3, spring 4, ring pulvilliform skeleton 5, L shaped skeleton 6, limited step 7, ring pulvilliform skeleton 5 joints 8, shoulder 9, back 10, waist 11, secondary lip 12, ring pulvilliform skeleton 5 subdivision places 13, L shaped skeleton 6 subdivision places 14, seal chamber 15, Seal cage end face 16, Seal cage 17, running shaft 18, locating slot 19, locating slot 20.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
The present embodiment discloses a kind of external mounted Double-lip framework oil sealing, its design philosophy is: design ring pulvilliform skeleton 5 and L shaped skeleton 6, by ring pulvilliform skeleton 5, the affixed one of L shaped skeleton 6 or all-in-one-piece structure processed, the common radial and axial supporting mechanism that forms external mounted Double-lip framework oil sealing, solves the support strength problem at shoulder 9 and back 10.The part that is placed in limited step 7 with ring pulvilliform skeleton 5, L shaped skeleton 6 provides enough mechanical strengths to online dismounting.With split type and the part split type structure of ring pulvilliform skeleton 5 and L shaped skeleton 6, dismantled and disassembled online, remove and provide convenience.
Concrete structure is shown in Fig. 1-Fig. 3.
Referring to accompanying drawing 1, accompanying drawing 2, the present embodiment is comprised of the sealing lip 1, bizet 2, spring groove 3, spring 4, ring pulvilliform skeleton 5, L shaped skeleton 6, limited step 7, ring pulvilliform skeleton 5 joints 8, shoulder 9, back 10, waist 11, secondary lip 12, ring pulvilliform skeleton 5 subdivision places 13, L shaped skeleton 6 subdivision places 14, locating slot 19, the locating slot 20 that form external mounted Double-lip framework oil sealing integrative-structure.Sealing lip 1 is positioned at bizet 2 outsides, spring groove 3 is positioned at bizet 2 inner sides, secondary lip 12 is positioned at waist 11 outsides, limited step 7 is connected as a single entity with shoulder 9, back 10, waist 11, secondary lip 12, bizet 2, sealing lip 1, spring groove 3, limited step 7 is positioned on the excircle of shoulder 9 and 10 intersections, back, and spring 4 is independently arranged in spring groove 3.Limited step 7 is connected as a single entity with shoulder 9 and back 10, its role is to convenient installation and online dismounting, and can be the cost that equipment manufacturers save traditional oils sealed cover.Ring pulvilliform skeleton 5 is split type ring structure, be arranged in limited step 7 and back 10, its excircle part and L shaped skeleton 6 fix as one or make one, and axial two middle side parts in back 10 have for encircling locating slot 19 and the locating slot 20 of pulvilliform skeleton 5 location.L shaped skeleton 6 is part split type ring structure, is arranged in shoulder 9 and limited step 7, and its front end is connected, and middle part and bottom are split type, and its bottom is welded as a whole or directly makes integrative-structure with ring pulvilliform skeleton 5.For meeting distinct device operating mode needs, ring pulvilliform skeleton 5 and L shaped skeleton 6 can be made into integrative-structure or fix as one and expose oil sealing body completely and do not need to cover rubber or other materials.
What 13 in Fig. 1,14 showed is ring pulvilliform skeleton 5 subdivision places 13, L shaped skeleton 6 subdivision places 14.
Referring to accompanying drawing 3, external mounted Double-lip framework oil sealing is sleeved on running shaft 18 vertically, adopts special tooling to be pressed into the Seal cage 17 being arranged on seal chamber 15, makes limited step 7 be adjacent to Seal cage end face 16.
Each parts functions and principles of the present invention:
Referring to Fig. 1,2,3, during installation, spring 4 is hung in spring groove 3, vertically external mounted Double-lip framework oil sealing is placed on running shaft 18, with special tooling, be pressed into the Seal cage 17 that is arranged in seal chamber 15, make limited step 7 be adjacent to Seal cage end face 16.Complete installation.
Referring to Fig. 3, change online Split oil seal when (or claiming open oil), must remove online external mounted Double-lip framework oil sealing.During dismounting, only need to insert between limited step 7 and Seal cage end face 16 with flat mouth screw-driver, external mounted Double-lip framework oil sealing is prized to Seal cage 17, and then with blade, cut off rubber or other material parts that is arranged in ring pulvilliform skeleton 5 subdivision places 13 and L shaped skeleton 6 subdivision places 14, then with cutting pliers, external mounted Double-lip framework oil sealing is broken to folding and remove.
The medium that sealing lip 1 sealing leaks along running shaft 18; Spring 4 applies pretightening force by bizet 2 to sealing lip 1, and assurance sealing lip 1 is followed for a long time and holds running shaft 18 tightly, thus the sealing effect of realizing ideal.Spring groove 3 is for mounting spring 4; Ring pulvilliform skeleton 5, L shaped skeleton 6 provide respectively axially and radial support power; Ring pulvilliform skeleton 5 subdivision places 13, L shaped skeleton 6 subdivision places 14 provide convenience for convenience of online dismounting; Limited step 7 is provided convenience for prizing online external mounted Double-lip framework oil sealing, and the convenient location of installing, also can save a sealing gland simultaneously; Ring pulvilliform skeleton 5 joints 8 are for guaranteeing product processing circularity and size; Shoulder 9 for radially fixedly external mounted Double-lip framework oil sealing in Seal cage 17; Back 10 is for connecting limited step 7, shoulder 9, secondary lip 12, waist 11, bizet 2, spring groove 3, sealing lip 1; Waist 11 is for auxiliary connection lip 12, bizet 2, spring groove 3, sealing lip 1; Secondary lip 12 is for stoping extraneous steam flue dust to invade Seal cage 17 along running shaft 18; Locating slot 19,20 is respectively used to add man-hour to ring pulvilliform skeleton 5 location.
Installation method of the present invention:
(1) clean running shaft 18, seal chamber 15, Seal cage end face 16, Seal cage 17 and other adjacent regions and parts.
(2) after spring 4 being connected, be installed in spring groove 3.
(3) moderate lubrication fat is smeared in waist 11 outsides between sealing lip 1 and secondary lip 12, then by external mounted Double-lip framework oil sealing along running shaft 18 push to and indentation sealing cavity 15 in Seal cage 17 in, make limited step 7 be adjacent to Seal cage end face 16.Complete installation.
Method for dismounting of the present invention:
(1) with flat mouth screw-driver, insert between limited step 7 and Seal cage end face 16, external mounted Double-lip framework oil sealing is prized to Seal cage 17.
(2) cut off the spring 4 that is arranged in spring groove 3.
(3) with blade, cut off rubber or other materials being positioned in ring pulvilliform skeleton 5 subdivision places 13 and L shaped skeleton 6 subdivision places 14, then with cutting pliers, external mounted Double-lip framework oil sealing is broken to folding and remove.
Above-described embodiment has only been expressed one embodiment of the present invention, but can not therefore be interpreted as limitation of the scope of the invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (7)
1. an external mounted Double-lip framework oil sealing, comprise the sealing lip, bizet, spring groove, limited step, shoulder, back, waist, secondary lip, the locating slot that form external mounted Double-lip framework oil sealing integrative-structure, sealing lip is positioned at bizet outside, spring groove is positioned at bizet inner side, secondary lip is positioned at waist outside, it is characterized in that, also comprises ring pulvilliform skeleton and L shaped skeleton, ring pulvilliform skeleton, L shaped skeleton are integrated, and are arranged in back, shoulder and limited step; Described limited step and shoulder, back, dust excluder lips, waist, bizet, sealing lip, spring groove are connected as a single entity, and are provided with spring in spring groove.
2. external mounted Double-lip framework oil sealing according to claim 1, is characterized in that, described ring pulvilliform skeleton excircle part and L shaped skeleton bottom is affixed or make integrative-structure.
3. external mounted Double-lip framework oil sealing according to claim 1 and 2, is characterized in that, described ring pulvilliform skeleton is split type ring structure, is arranged in limited step and back.
4. external mounted Double-lip framework oil sealing according to claim 1 and 2, is characterized in that, described L shaped skeleton is part split type ring structure, is arranged in shoulder and limited step, and the front end of L shaped skeleton is connected, and middle part and bottom are split type.
5. external mounted Double-lip framework oil sealing according to claim 1, is characterized in that, described limited step is positioned on the excircle of shoulder and intersection, back, is connected as a single entity with shoulder and back.
6. external mounted Double-lip framework oil sealing according to claim 1, is characterized in that, described ring pulvilliform skeleton and L shaped skeleton expose to oil sealing body completely or be coated in oil sealing body.
7. external mounted Double-lip framework oil sealing according to claim 1, is characterized in that, axial two middle side parts in described back have locating slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310639270.2A CN103574037B (en) | 2013-12-04 | 2013-12-04 | Fitted outside Double-lip framework oil sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310639270.2A CN103574037B (en) | 2013-12-04 | 2013-12-04 | Fitted outside Double-lip framework oil sealing |
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| Publication Number | Publication Date |
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| CN103574037A true CN103574037A (en) | 2014-02-12 |
| CN103574037B CN103574037B (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310639270.2A Active CN103574037B (en) | 2013-12-04 | 2013-12-04 | Fitted outside Double-lip framework oil sealing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214342A (en) * | 2014-09-30 | 2014-12-17 | 昆山健博密封件科技有限公司 | Sealing element |
| CN105065680A (en) * | 2015-08-28 | 2015-11-18 | 昆山健博密封件科技有限公司 | Sealing part applied to heavy-load rotation shaft |
| CN105757250A (en) * | 2016-05-05 | 2016-07-13 | 青岛开世密封工业有限公司 | Split oil seal and manufacturing method thereof |
| CN108119651A (en) * | 2017-12-25 | 2018-06-05 | 陈旭明 | A kind of fitted outside combination oil seal |
| CN109058464A (en) * | 2018-07-31 | 2018-12-21 | 合肥集源穗意液压技术股份有限公司 | A kind of QLQB oil enveloping structure for being conducive to not go here and there oil |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5509667A (en) * | 1992-11-04 | 1996-04-23 | Firma Carl Freudenberg | Radial lip seal for a shaft in a housing |
| US6357757B1 (en) * | 2000-03-07 | 2002-03-19 | American Axle & Manufacturing, Inc. | Integral seal protector/labyrinth |
| CN2641386Y (en) * | 2003-08-04 | 2004-09-15 | 青岛基珀密封工业有限公司 | Grease seal |
| CN102537360A (en) * | 2012-01-20 | 2012-07-04 | 重庆杜克高压密封件有限公司 | Assembled half-exposed framework high-pressure seal ring |
| CN103410973A (en) * | 2013-08-12 | 2013-11-27 | 湖北新置密封件有限公司 | Self-location type split framework oil seal |
| CN203548922U (en) * | 2013-12-04 | 2014-04-16 | 湖北新置密封件有限公司 | Externally-mounted double-lip framework oil seal |
-
2013
- 2013-12-04 CN CN201310639270.2A patent/CN103574037B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5509667A (en) * | 1992-11-04 | 1996-04-23 | Firma Carl Freudenberg | Radial lip seal for a shaft in a housing |
| US6357757B1 (en) * | 2000-03-07 | 2002-03-19 | American Axle & Manufacturing, Inc. | Integral seal protector/labyrinth |
| CN2641386Y (en) * | 2003-08-04 | 2004-09-15 | 青岛基珀密封工业有限公司 | Grease seal |
| CN102537360A (en) * | 2012-01-20 | 2012-07-04 | 重庆杜克高压密封件有限公司 | Assembled half-exposed framework high-pressure seal ring |
| CN103410973A (en) * | 2013-08-12 | 2013-11-27 | 湖北新置密封件有限公司 | Self-location type split framework oil seal |
| CN203548922U (en) * | 2013-12-04 | 2014-04-16 | 湖北新置密封件有限公司 | Externally-mounted double-lip framework oil seal |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214342A (en) * | 2014-09-30 | 2014-12-17 | 昆山健博密封件科技有限公司 | Sealing element |
| CN105065680A (en) * | 2015-08-28 | 2015-11-18 | 昆山健博密封件科技有限公司 | Sealing part applied to heavy-load rotation shaft |
| CN105757250A (en) * | 2016-05-05 | 2016-07-13 | 青岛开世密封工业有限公司 | Split oil seal and manufacturing method thereof |
| CN108119651A (en) * | 2017-12-25 | 2018-06-05 | 陈旭明 | A kind of fitted outside combination oil seal |
| CN109058464A (en) * | 2018-07-31 | 2018-12-21 | 合肥集源穗意液压技术股份有限公司 | A kind of QLQB oil enveloping structure for being conducive to not go here and there oil |
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| Publication number | Publication date |
|---|---|
| CN103574037B (en) | 2016-06-15 |
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Effective date of registration: 20171130 Address after: 435300 Qichun County, Hubei Province, Chek Tung Village, Chek Tung town, Qichun County Patentee after: New Polytron Technologies Inc in Hubei Address before: A road in Qichun County of Hubei Province, Huanggang City Industrial Park Yang Si Ling energy-saving lamp Patentee before: Hubei Xinzhi Sealing Element Co., Ltd. |
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