CN206988426U - A kind of multiple lip seal sealing device - Google Patents

A kind of multiple lip seal sealing device Download PDF

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Publication number
CN206988426U
CN206988426U CN201720764852.7U CN201720764852U CN206988426U CN 206988426 U CN206988426 U CN 206988426U CN 201720764852 U CN201720764852 U CN 201720764852U CN 206988426 U CN206988426 U CN 206988426U
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CN
China
Prior art keywords
lip
primary seal
sealing
seal lip
ring
Prior art date
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Active
Application number
CN201720764852.7U
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Chinese (zh)
Inventor
诸立亚
袁丽芬
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.)
KUNSHAN KENBO SEAL TECHNOLOGY Co Ltd
Original Assignee
KUNSHAN KENBO SEAL TECHNOLOGY Co Ltd
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Application filed by KUNSHAN KENBO SEAL TECHNOLOGY Co Ltd filed Critical KUNSHAN KENBO SEAL TECHNOLOGY Co Ltd
Priority to CN201720764852.7U priority Critical patent/CN206988426U/en
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Publication of CN206988426U publication Critical patent/CN206988426U/en
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Abstract

The utility model discloses a kind of multiple lip seal sealing device, and it includes ring-shaped rubber body, and endless metal skeleton is embedded with ring-shaped rubber body;The outer shroud sidepiece of ring-shaped rubber body forms static seal surface, and inner ring sidepiece sets dynamic sealing component;The dynamic sealing component includes primary seal lip and the secondary sealing lip extended respectively to both sides from the inner ring sidepiece of ring-shaped rubber body;Primary seal lip includes the first primary seal lip and the second primary seal lip successively away from ring-shaped rubber body inner ring sidepiece;The annular diameters of second primary seal lip are less than the annular diameters of the first primary seal lip;The inner ring end of secondary sealing lip is circular arc;The outer portion of primary seal lip is provided with annular groove, and spring is arranged with annular groove.The utility model can improve the frame strength and sealing effectiveness of sealing device, extend the service life of oil-sealing arrangement.

Description

A kind of multiple lip seal sealing device
Technical field
It the utility model is related to oil sealing sealing part technical field, particularly a kind of multiple lip type sealing device.
Background technology
The sealing of oil sealing, i.e. lubricating oil.Sealing device is to prevent the binding site of fluid or solid particle from device Leakage, and the impurity of outside is prevented, such as dust, moisture, greasy dirt, the parts of the inner components of plant equipment is invaded, its For oil pocket to be isolated from the outside, internal oil sealing is externally dust-proof, is widely used in the crowds such as household electrical appliance, automobile transmitter, chemical industry In conglomerate.And also there is the defects of insufficient strength, sealing effectiveness is bad in existing oil sealing mostly.
The content of the invention
The purpose of this utility model is to provide a kind of multiple lip seal sealing device, and it is strong that it can improve the skeleton of sealing device Degree and sealing effectiveness, extend the service life of oil-sealing arrangement.
The technical solution of the utility model is:A kind of multiple lip seal sealing device, including ring-shaped rubber body, ring-shaped rubber Endless metal skeleton is embedded with body;
The outer shroud sidepiece of ring-shaped rubber body forms static seal surface, and inner ring sidepiece sets dynamic sealing component;It is described dynamic State seal assembly includes primary seal lip and the secondary sealing lip extended respectively to both sides from the inner ring sidepiece of ring-shaped rubber body;Master is close Sealing lip includes the first primary seal lip and the second primary seal lip successively away from ring-shaped rubber body inner ring sidepiece;Second primary seal lip Annular diameters be less than the first primary seal lip annular diameters;The inner ring end of secondary sealing lip is circular arc;
The outer portion of primary seal lip is provided with annular groove, and spring is arranged with annular groove.
Preferably, the dynamic sealing surface end of the first primary seal lip and the second primary seal lip is tip-angled shape, can effectively be avoided Fluid overflows with the reciprocating motion of axle, or external dust impurity enters inside sealing device or machine components with axle.
Preferably, the annular diameters of secondary sealing lip are slightly larger than the annular diameters of the first primary seal lip.So that sealing device exists On secondary sealing lip, the first primary seal lip to the direction of the second primary seal lip, the trend that tightness strengthens successively is formed, ensures sealing Effect.
Preferably, the dynamic sealing surface axial length that secondary sealing lip and primary seal lip are formed is 7cm, the inner ring of secondary sealing lip A diameter of 18.8cm, the annular diameters of the first primary seal lip are 18.7cm, and the annular diameters of the second primary seal lip are 17.9cm. During actual fabrication, the product of different application occasion can carry out the adjustment of Each part size according to ratio.
Preferably, the primary seal lip, secondary sealing lip and ring-shaped rubber body are formed in one.
Preferably, the endless metal skeleton is made of carbon steel material, can increase the rigidity of sealing device, makes oil sealing not It is yielding, increase the service life.
Beneficial effect
Compared in prior art, the utility model has advantages below and progress:
Static seal surface and dynamic sealing surface realize the double effectses of radial seal and axial seal;
The setting of skeleton ironware can strengthen the overall intensity of sealing device;
For the design of more sealing lips of dynamic sealing surface, sealing property is greatly improved;
The cambered design of secondary sealing lip dynamic sealing surface end can reduce the friction between sealing lip and axial plane, prevent long-term Deformed using lip;
To sum up, the utility model has the advantages of sealing property is splendid, and service life is longer.
Brief description of the drawings
Fig. 1 show a kind of specific embodiment cross-sectional view of the utility model;
Fig. 2 show partial cutaway schematic in Fig. 1.
Embodiment
Further described below in conjunction with the drawings and specific embodiments.
As shown in figure 1, multiple lip seal sealing device of the present utility model, including ring-shaped rubber body 1, ring-shaped rubber body Endless metal skeleton 4 is embedded with 1;
The outer shroud sidepiece of ring-shaped rubber body 1 forms static seal surface 2(3), inner ring sidepiece setting dynamic sealing component;Institute Stating dynamic sealing component includes the inner ring sidepiece by ring-shaped rubber body 1, the primary seal lip and secondary sealing extended respectively to both sides Lip 5;Primary seal lip includes the first primary seal lip 6 and the second primary seal lip 7 successively away from the inner ring sidepiece of ring-shaped rubber body 1; The annular diameters of second primary seal lip 7 are less than the annular diameters of the first primary seal lip 6;The inner ring end of secondary sealing lip 5 is circular arc Shape;
The outer portion of primary seal lip 7 is provided with annular groove, and spring 8 is arranged with annular groove.
Embodiment
The dynamic sealing surface end of first primary seal lip 6 and the second primary seal lip 7 is tip-angled shape, can effectively avoid fluid with The reciprocating motion of axle is overflowed, or external dust impurity enters inside sealing device or machine components with axle.
The annular diameters of secondary sealing lip 5 are slightly larger than the annular diameters of the first primary seal lip.So that sealing device is in secondary sealing On lip, the first primary seal lip to the direction of the second primary seal lip, the trend that tightness strengthens successively is formed, ensures sealing effectiveness.
Such as Fig. 2, dynamic sealing surface axial length that secondary sealing lip is formed with primary seal lip is 7cm, the inner ring of secondary sealing lip A diameter of 18.8cm, the annular diameters of the first primary seal lip are 18.7cm, and the annular diameters of the second primary seal lip are 17.9cm. During actual fabrication, the product of different application occasion can carry out the adjustment of Each part size according to ratio.
Primary seal lip, secondary sealing lip 5 and ring-shaped rubber body 1 are formed in one.It is made, is had preferable of fluorubber Elasticity and sealing property.
Spring, endless metal skeleton are made of carbon steel material, can increase the rigidity of sealing device, make oil sealing not variable Shape, increase the service life.
The utility model static seal surface and dynamic sealing surface realize the double effectses of radial seal and axial seal;Bone The setting of frame ironware can strengthen the overall intensity of sealing device;, can be significantly for the design of more sealing lips of dynamic sealing surface Improve sealing property;The cambered design of secondary sealing lip dynamic sealing surface end can reduce the friction between sealing lip and axial plane, prevent Only long-term use of lip deformation.The advantages of sealing property is splendid so that the utility model has, and service life is longer.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and deformation can also be made, these change Enter and deform and also should be regarded as the scope of protection of the utility model.

Claims (6)

1. a kind of multiple lip seal sealing device, it is characterized in that, including ring-shaped rubber body, annular is embedded with ring-shaped rubber body Metallic framework;
The outer shroud sidepiece of ring-shaped rubber body forms static seal surface, and inner ring sidepiece sets dynamic sealing component;The dynamic is close Sealing assembly includes primary seal lip and the secondary sealing lip extended respectively to both sides from the inner ring sidepiece of ring-shaped rubber body;Primary seal lip Including the first primary seal lip and the second primary seal lip successively away from ring-shaped rubber body inner ring sidepiece;Second primary seal lip it is interior Ring diameter is less than the annular diameters of the first primary seal lip;The inner ring end of secondary sealing lip is circular arc;
The outer portion of primary seal lip is provided with annular groove, and spring is arranged with annular groove.
2. multiple lip seal sealing device according to claim 1, it is characterized in that, the first primary seal lip and the second primary seal lip Dynamic sealing surface end be tip-angled shape.
3. multiple lip seal sealing device according to claim 1, it is characterized in that, the annular diameters of secondary sealing lip are slightly larger than the The annular diameters of one primary seal lip.
4. multiple lip seal sealing device according to claim 3, it is characterized in that, secondary sealing lip forms dynamic with primary seal lip State sealing surface axial length is 7cm, and the annular diameters of secondary sealing lip are 18.8cm, and the annular diameters of the first primary seal lip are 18.7cm, the annular diameters of the second primary seal lip are 17.9cm.
5. multiple lip seal sealing device according to claim 1, it is characterized in that, the primary seal lip, secondary sealing lip and ring Shape rubber body is formed in one.
6. multiple lip seal sealing device according to claim 1, it is characterized in that, the endless metal skeleton uses carbon steel material Material is made.
CN201720764852.7U 2017-06-28 2017-06-28 A kind of multiple lip seal sealing device Active CN206988426U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720764852.7U CN206988426U (en) 2017-06-28 2017-06-28 A kind of multiple lip seal sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720764852.7U CN206988426U (en) 2017-06-28 2017-06-28 A kind of multiple lip seal sealing device

Publications (1)

Publication Number Publication Date
CN206988426U true CN206988426U (en) 2018-02-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720764852.7U Active CN206988426U (en) 2017-06-28 2017-06-28 A kind of multiple lip seal sealing device

Country Status (1)

Country Link
CN (1) CN206988426U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108488387A (en) * 2018-05-17 2018-09-04 昆山健博密封件科技有限公司 A kind of multiple lip seal device
CN110043667A (en) * 2019-05-15 2019-07-23 江苏常众发动力有限公司 A kind of oil seal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108488387A (en) * 2018-05-17 2018-09-04 昆山健博密封件科技有限公司 A kind of multiple lip seal device
CN110043667A (en) * 2019-05-15 2019-07-23 江苏常众发动力有限公司 A kind of oil seal

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