CN2402874Y - Combined sealing ring - Google Patents

Combined sealing ring Download PDF

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Publication number
CN2402874Y
CN2402874Y CN99250995U CN99250995U CN2402874Y CN 2402874 Y CN2402874 Y CN 2402874Y CN 99250995 U CN99250995 U CN 99250995U CN 99250995 U CN99250995 U CN 99250995U CN 2402874 Y CN2402874 Y CN 2402874Y
Authority
CN
China
Prior art keywords
skeleton
lip
inner frame
connecting base
combined type
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.)
Expired - Lifetime
Application number
CN99250995U
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Chinese (zh)
Inventor
周旭
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.)
Wanxiang Qianchao Co Ltd
Original Assignee
Wanxiang Qianchao 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 Wanxiang Qianchao Co Ltd filed Critical Wanxiang Qianchao Co Ltd
Priority to CN99250995U priority Critical patent/CN2402874Y/en
Application granted granted Critical
Publication of CN2402874Y publication Critical patent/CN2402874Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72Sealings
    • F16C33/76Sealings of ball or roller bearings
    • F16C33/78Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7869Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
    • F16C33/7879Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring
    • F16C33/7883Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring mounted to the inner race and of generally L-shape, the two sealing rings defining a sealing with box-shaped cross-section
    • 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
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement

Abstract

The utility model relates to a structural improvement of a combined mechanical sealing ring. The utility model is characterized in that one end of an outer skeleton is provided with a sealing ring body; a primary lip and a secondary lip of the sealing ring body respectively contact the inner side of an inner skeleton. Hence, the utility model has the advantages of reasonable structure, small size, good effects of dust prevention, water prevention, and grease leakage prevention, small friction moment, better performance of temperature-rise resistance, low cost, wide applicability, etc. The utility model can be used in situations, such as various bearings, or automobile wheel hub units, etc.

Description

Combined type packing ring
The utility model relates to a kind of mechanical seal ring, especially a kind of labyrinth-like seal ring that is formed by metal and building rubber compound.
Existing seal ring adopts rubber to make the structure of monolithic or biplate more, though it is simple in structure, price is lower, exists easy to wearly, and the life-span is short, sealability is not good enough wait not enough.
In order to overcome the deficiency that single ring structure causes, the someone adopts different structures or the combination of material seal circle to make combined type packing ring.For example, a kind of utility model patent of " combination fixing ring " (patent No. 95209098.8) by name discloses a kind of seal ring, its bottom, circular crosssection is trapezoidal, the ring structure of outer lug in top has at least together, the structure of this protruding ring plays seal action for the second time, increase the surface of contact with member, improved sealability; But still exist easy to wear, surface friction drag is big wait not enough.
Goal of the invention of the present utility model provides a kind of rational in infrastructure, and is easily manufactured, and frictional force distance and volume are less, and be cheap, the combined type packing ring that Applicable scope is wider.
Goal of the invention of the present utility model mainly is achieved by following technical proposals: an end of skeleton is provided with the sealing circle body outside, and the main lip of sealing circle body and secondary lip difference interference fit are in the inboard of inner frame.
Wherein, described sealing circle body is assembled together with after skeleton body can adopt two kinds of different materials of soft, hard degree to make respectively respectively.Usually, described seal ring system adopts rubber to make, and which is provided with the connecting base that matches with dermoskeleton frame end portion, and is integral by skeleton is bonding outside connecting base and the metal; And the cross section of described outer skeleton is made of L-shaped outside and quiet side; The cross section of inner frame is made of L-shaped inner edge and moving side.Above-mentioned inner frame or outer skeleton also can be other sectional shapes, configuration.For example, the outside of outer skeleton is folded to reverse side, and the moving side of inner frame is a folding face (non-planar surface), and the end is free.
In order further to improve dustproof, water proofing property of the present utility model and to prevent that grease from leaking ability, can between the connecting base of described seal ring and secondary lip, be provided with lateral lip, its end is contacted with the inboard that inner frame moves side.The close end that also can be provided with extending body in the inboard of described sealing circle body connecting base is provided with the contacted outer lip in end that moves side with inner frame.In addition, the moving side of described inner frame is provided with the moved end that an invagination forms; Described outer lip tiltedly is located at the close end of connecting base extending body, and is close proximity on the outer side surface of moved end.
Described outer skeleton and inner frame except the casting or gold machining produce the required shape, also can adopt the direct punching out of steel plate to form.
Therefore, the utlity model has following advantage:
1, rational in infrastructure, simple, overcome the existing seal ring bigger deficiency that takes up room, dwindled the volume of structure significantly, make it width and can widen use occasion less than 4 millimeters.
2, soft, the scleroma fabricated structure of closing of metal and rubber makes it to prevent dust, water-proof performance is good, is the 2-10 of conventional seals circle, and has improved the ability that prevents that the seal ring grease from leaking.
3, each rubber labial surface all adopts the line contact with the skeleton that contacts with it, and size reduces in addition, and the friction torque that makes it to move can greatly reduce, and prevents that effectively temperature from rising, and improved the ability of temperature resistance.
4, easily manufactured, cost of production is lower, makes it the total price and descends, and is more economical.
Fig. 1 is a kind of partial structurtes sectional view of the present utility model;
Fig. 2 is an another kind of partial structurtes sectional view of the present utility model;
Fig. 3 is the third partial structurtes sectional view of the present utility model;
Fig. 4 is that the utility model is installed in a kind of partial sectional view in the bearing.
Below by embodiment, and in conjunction with the accompanying drawings, structure of the present utility model is further described.
Embodiment 1: outer skeleton 2 is to become L shaped annulus with punching of the steel plate, the end of quiet side 22 is bonded with the sealing circle body 3 that rubber is made, its main lip 32 is hook-type, secondary lip, 33 is the man type layout with main lip 32, lateral lip 35 is folded to moving side 42 proximal ends of inner frame 4, and the moving side 42 of inner frame 4 is folding face (non-planar surface) shape, and the end is free.During assembling, with main lip 32 and the secondary lip 33 and inner edge 41 interference fit of sealing circle body 3; Lateral lip 35 and moving side 42 interference fit (referring to accompanying drawing 1).
Embodiment 2: outer skeleton 2 is to adopt the steel plate punching press to make the L-shaped annulus in cross section, and its bottom surface is quiet side 22, and vertical surface is outside 21; Equally, inner frame 4 also adopts the steel plate punching press to make the L-shaped annulus in cross section, and its bottom surface is moving side 42, and vertical surface is an inner edge 41.Then, respectively antirust processing is carried out in its metal surface, to improve its corrosion resistance.Sealing circle body 3 adopts rubber to make, and which is provided with main lip 32, secondary lip 33 and lateral lip 35, and the shape of connecting base 31 matches by (referring to accompanying drawing 3) with quiet side 22 end shapes of outer skeleton 2, and both are integral with the binder cementation.At last, with sealing circle body on the outer skeleton 23 and inner frame 4 interference fit, promptly make product.Be separated into multiple tracks labyrinth-like cavity between each lip body of sealing circle body 3 and the inside and outside skeleton body.
Embodiment shown in the accompanying drawing 2 is a kind of structure variation of the foregoing description, and it mainly changes is that moving side 42 ends of inner frame 4 inwardly are converted into moved end 43; And side extends into connecting body 30 within the connecting base 31 of rubber seal circle body 3, and along the quiet side 22 of outer skeleton 2 and outside 21 bonding it, its end is provided with tilting and is fixed against outer lip 34 on the moved end 43.
During use, limit 41 is located on the bearing inner ring 6 within the inner frame 4 of the present utility model, and its moving side 42 flushes with the outer side surface of bearing; And the outside 21 of outer skeleton 2 is fixed on the outer race 5, and its quiet side 22 places the inboard (referring to accompanying drawing 4) of the nearly rolling element 7 of bearing.The relative position of rolling element 7 can rely on retainer 8 to keep constant substantially.Like this, the lip body structure of rubber multilayer can prevent effectively that sewage, dust from entering, the perhaps leakage of lubricated wet goods in the bearing.

Claims (6)

1. a combined type packing ring includes skeleton and is located at its interior seal, it is characterized in that an end of skeleton (2) is provided with sealing circle body (3) outside, and the main lip (32) of sealing circle body and secondary lip (33) difference interference fit are in the inboard of inner frame (4).
2. combined type packing ring as claimed in claim 1, it is characterized in that described sealing circle body (3) is to adopt rubber to make, which is provided with the connecting base (31) that matches with outer skeleton (2) end, and by outer bonding being integral of skeleton (2) of connecting base (31) and metal; And the cross section of described outer skeleton (2) is made of L-shaped outside (21) and quiet side (22); The cross section of inner frame (4) is made of L-shaped inner edge (41) and moving side (42).
3. combined type packing ring as claimed in claim 1, it is characterized in that described sealing circle body (3) is to adopt rubber to make, which is provided with the connecting base (31) that matches with outer skeleton (2) end, and by outer bonding being integral of skeleton (2) of connecting base (31) and metal; And the cross section of described outer skeleton (2) is made of L-shaped outside (21) and quiet side (22); And its limit (21) are folded to reverse side; The moving side of inner frame (4) is a folding face, and its end is free.
4. as claim 1 or 2 or 3 described combined type packing rings, it is characterized in that between the connecting base (31) of described seal ring (3) and secondary lip (33), being provided with lateral lip (35), its end is contacted with the inboard of the moving side (42) of inner frame (4).
5. as claim 1 or 2 or 3 described combined type packing rings, the close end that the inboard that it is characterized in that described sealing circle body (3) connecting base (31) is provided with extending body (30) is provided with the contacted outer lip in end (34) with the moving side (42) of inner frame (4).
6. combined type packing ring as claimed in claim 5 is characterized in that the moving side (42) of described inner frame (4) is provided with the moved end (43) that an invagination forms; Described outer lip (34) tiltedly is located at the close end of connecting base (31) extending body (30), and is close proximity on the outer side surface of moved end.
CN99250995U 1999-11-23 1999-11-23 Combined sealing ring Expired - Lifetime CN2402874Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN99250995U CN2402874Y (en) 1999-11-23 1999-11-23 Combined sealing ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN99250995U CN2402874Y (en) 1999-11-23 1999-11-23 Combined sealing ring

Publications (1)

Publication Number Publication Date
CN2402874Y true CN2402874Y (en) 2000-10-25

Family

ID=34035596

Family Applications (1)

Application Number Title Priority Date Filing Date
CN99250995U Expired - Lifetime CN2402874Y (en) 1999-11-23 1999-11-23 Combined sealing ring

Country Status (1)

Country Link
CN (1) CN2402874Y (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100564961C (en) * 2004-07-12 2009-12-02 Skf美国公司 The Sealing that has plastic inner cup
CN101080590B (en) * 2004-12-21 2010-10-20 Nok株式会社 Sealing device with sound insulating seal
CN102729479A (en) * 2012-06-25 2012-10-17 安徽中鼎减震橡胶技术有限公司 Production method of auto cushion blocks
CN106949243A (en) * 2016-12-02 2017-07-14 万向钱潮股份有限公司 A kind of Novel hub unit inner seal ring
CN107923540A (en) * 2015-09-01 2018-04-17 Nok株式会社 Sealing device
CN109707927A (en) * 2018-12-05 2019-05-03 王立菊 Device for preventing leakage and its application method at a kind of natural gas transportation pipe joint

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100564961C (en) * 2004-07-12 2009-12-02 Skf美国公司 The Sealing that has plastic inner cup
CN101080590B (en) * 2004-12-21 2010-10-20 Nok株式会社 Sealing device with sound insulating seal
CN102729479A (en) * 2012-06-25 2012-10-17 安徽中鼎减震橡胶技术有限公司 Production method of auto cushion blocks
CN107923540A (en) * 2015-09-01 2018-04-17 Nok株式会社 Sealing device
US10605369B2 (en) 2015-09-01 2020-03-31 Nok Corporation Sealing apparatus
CN106949243A (en) * 2016-12-02 2017-07-14 万向钱潮股份有限公司 A kind of Novel hub unit inner seal ring
CN109707927A (en) * 2018-12-05 2019-05-03 王立菊 Device for preventing leakage and its application method at a kind of natural gas transportation pipe joint

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