CN203926420U - Sting lip formula bearing sealed ring - Google Patents
Sting lip formula bearing sealed ring Download PDFInfo
- Publication number
- CN203926420U CN203926420U CN201420351014.3U CN201420351014U CN203926420U CN 203926420 U CN203926420 U CN 203926420U CN 201420351014 U CN201420351014 U CN 201420351014U CN 203926420 U CN203926420 U CN 203926420U
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- seal ring
- ring
- seal
- radial
- lip limit
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Abstract
The utility model relates to one and stings lip formula bearing sealed ring, comprise seal ring body, seal ring body comprises the exterior seal ring being fixedly mounted on bearing outer ring, and be fixedly mounted on the inner seal ring on bearing inner race, exterior seal ring and inner seal ring include seal ring skeleton and rubbery sealed body, exterior seal ring radial outer end is the outer ring fixed end being fixed on bearing outer ring, the radial inner end of inner seal ring is the inner ring fixed end being fixed on bearing inner race, between the radial inner end of exterior seal ring and the radial outer end of inner seal ring, be provided with the sealing configuration that axial butt is sealed and matched, sealing configuration comprises the radial seal lip limit radially extending to form and extends axially the axial seal lip limit of formation, top, axial seal lip limit is pressed on radial seal lip limit realizes and being sealed and matched.The utility model compared with prior art, has axial shifting amount and drift angle and has better containment, and avoid occurring lip and run and off normal to put and cause tearing, good seal performance, friction torque is low, the advantage that the life-span is longer.
Description
Technical field
The utility model relates to technical field of bearings, definite says the seal ring on bearing.
Background technique
Bearing is in mechanical transmission course, to work the parts of fixing and reducing load friction factor.For improving the protection to bearing inside rolling element, conventionally between the inside and outside circle two-port of bearing, install bearing sealed ring additional, the proofing dust and protecting of shape matched bearings.
As shown in Figure 1, traditional bearing sealed ring main structure includes a seal ring skeleton 1a, seal ring skeleton 1a is upper with rubbery sealed body 2a, rubbery sealed body 2a outer end is typically provided with and is fixed on the outer seal lip in seal ring fixed groove on bearing outer ring 3, rubbery sealed body 2a the inner be provided with bearing inner race 4 on the interior sealing lip that is sealed and matched of seal groove, bearing sealed ring is fixed on bearing outer ring along with bearing outer ring rotates, and interior sealing lip is pressed on bearing inner race and with bearing inner race and relatively rotates.
There is following defect in the bearing sealed ring of existing structure:
1) axial shifting amount and the drift angle containment of bearing sealed ring is poor;
2) exist the lip of the interior sealing lip of bearing sealed ring to run to off normal to put and cause the phenomenon of tearing;
3) sealing lip friction torque is large in relative rotation for bearing sealed ring and bearing inner race, easily wearing and tearing, and working life is low.
Summary of the invention
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of has better containment to axial shifting amount and drift angle, avoids occurring lip and runs and off normal to put and cause tearing, good seal performance, friction torque is low, and what the life-span was longer stings lip formula bearing sealed ring.
For achieving the above object, the utility model provides following technological scheme: one is stung lip formula bearing sealed ring, include seal ring body, seal ring body is inner side towards bearing ball assembling cavity one side, the opposite side that seal ring body is relative is outside, it is characterized in that: described seal ring body includes the exterior seal ring being fixedly mounted on bearing outer ring, and be fixedly mounted on the inner seal ring on bearing inner race, exterior seal ring and inner seal ring include seal ring skeleton and are attached to the rubbery sealed body on seal ring skeleton, described exterior seal ring radial outer end is the outer ring fixed end being fixed on bearing outer ring, the radial inner end of inner seal ring is the inner ring fixed end being fixed on bearing inner race, between the radial inner end of exterior seal ring and the radial outer end of inner seal ring, be provided with the sealing configuration that axial butt is sealed and matched, sealing configuration includes the radial seal lip limit radially extending to form and extends axially the axial seal lip limit of formation, top, axial seal lip limit is pressed on radial seal lip limit realizes and being sealed and matched.
Such scheme middle (center) bearing seal ring adopts the exterior seal ring and the inner seal ring assembling that are separately fixed on bearing outer ring and bearing inner race to form, inner seal ring outer end and exterior seal ring adopt radial seal lip limit and the top compacting of axial seal lip limit to be now sealed and matched in the inner, realize traditional single seal ring design, adopt the interior exterior seal ring design of split-type design, realize bearing sealed ring in, the fixing assembling of exterior seal ring and bearing enclose, in, exterior seal ring is realized and is stung lip seal cooperation through sealing configuration, there is good seal performance, friction torque is low, life-span is longer, axial shifting amount and drift angle are had to better containment, lip can not occur to be run to off normal to put and causes the phenomenon of tearing.
The utility model is further set to: described exterior seal ring is provided with a radial seal lip and an axial seal lip limit, on inner seal ring, be provided with accordingly with exterior seal ring on the axial seal lip limit that is sealed and matched of radial seal lip limit butt, and with exterior seal ring on the radial seal lip limit that is sealed and matched of axial seal lip limit butt.Under this structural design, realize exterior seal ring and inner seal ring four lip seals cooperations, effectively improve the reliability of sealing.
The utility model is further set to: the axial seal lip limit on described exterior seal ring is positioned at the side position of radial seal lip limit near outer ring fixed end, and the axial seal lip limit on inner seal ring is positioned at the side position of radial seal lip limit near inner ring fixed end.This structure arranges down, the radial seal lip limit on exterior seal ring and inner seal ring is all positioned at marginal position, radial seal lip limit has better axial seal elasticity, axial seal lip limit has better butt intensity, thereby improves the butt sealing reliability on axial seal lip limit and radial seal lip limit.
The utility model is further set to: described exterior seal ring is positioned at the inner side of seal ring body, and inner seal ring is positioned at the outside of seal ring body, and the seal ring skeleton diameter of exterior seal ring is greater than the seal ring skeleton diameter of described inner seal ring.Under this structural design, while being subject to ambient air extruding, exterior seal ring amount of deformation is little, the amount of deformation of inner seal ring is large, while being subject to ambient air extruding, can make axial seal lip limit and radial seal lip limit on inner seal ring be pressed on exterior seal ring corresponding radial seal lip limit and axial seal lip limit, thereby it is better to improve sealing effect, on the contrary, in the time being subject to the extruding of bearing inner air, easily push inner seal ring open, realize the steel ball assembly cavity of the discharge bearing of gas, the performances such as the heat radiation of raising bearing.
Below in conjunction with accompanying drawing, the utility model is further described.
Brief description of the drawings
Fig. 1 is the utility model background technique bearing sealed ring structural representation;
Fig. 2 is the utility model specific embodiment structural representation;
Fig. 3 is Fig. 2 A part partial enlarged view.
Embodiment
Referring to accompanying drawing 2 and accompanying drawing 3, the disclosed one of the utility model is stung lip formula bearing sealed ring, includes seal ring body, and seal ring body is inner side 5 towards bearing ball assembling cavity one side, and the opposite side that seal ring body is relative is outside 6.Described seal ring body includes the exterior seal ring 1 being fixedly mounted on bearing outer ring 3, and be fixedly mounted on the inner seal ring 2 on bearing inner race 4, exterior seal ring 1 and inner seal ring 2 include seal ring skeleton and are attached to the rubbery sealed body on seal ring skeleton, described exterior seal ring 1 radial outer end is the outer ring fixed end 11 being fixed on bearing outer ring 3, the radial inner end of inner seal ring 2 is the inner ring fixed end 21 being fixed on bearing inner race 4, between the radial outer end of the radial inner end of exterior seal ring 1 and inner seal ring 2, be provided with the sealing configuration 7 that axial butt is sealed and matched, sealing configuration 7 includes the radial seal lip limit 71 radially extending to form and the axial seal lip limit 72 that extends axially formation, 72 tops, axial seal lip limit are pressed on radial seal lip limit 71 realizes and being sealed and matched.
Wherein sealing configuration can adopt single shaft to form to sealing lip limit 72 and single radial seal lip limit 71, and it is upper that axial seal lip limit 72 can be arranged on exterior seal ring (or inner seal ring), and radial direction seal ring can be arranged on inner seal ring (or exterior seal ring); Also can adopt axial seal lip limit and radial seal lip limit are set on exterior seal ring simultaneously, this structure is single axial seal lip limit and the setting of radial seal lip limit above, sealing is more reliable, therefore preferentially adopt in this specific embodiment: described exterior seal ring 1 is provided with a radial seal lip and an axial seal lip limit, on inner seal ring 2, be provided with accordingly with exterior seal ring 1 on the axial seal lip limit that is sealed and matched of radial seal lip limit butt, and with exterior seal ring 1 on the radial seal lip limit that is sealed and matched of axial seal lip limit butt.Realize like this exterior seal ring 1 and inner seal ring 2 four lip seals cooperations, while exterior seal ring 1 and inner seal ring 2 have supporting of radial seal lip limit and axial seal lip limit simultaneously and are sealed and matched, and effectively improve the reliability sealing.
In this specific embodiment, axial seal lip limit 72 on described exterior seal ring 1 is positioned at the side position of radial seal lip limit 71 near outer ring fixed end 11, and the axial seal lip limit 72 on inner seal ring 2 is positioned at the side position of radial seal lip limit 71 near inner ring fixed end 21.This structure arranges down, the radial seal lip limit on exterior seal ring 1 and inner seal ring 2 is all positioned at marginal position, radial seal lip limit has better axial seal elasticity, axial seal lip limit has better butt intensity, thereby improves the butt sealing reliability on axial seal lip limit and radial seal lip limit.
For further improving the sealing reliability of the inner seal ring of bearing sealed ring and the cooperation of exterior seal ring.Described exterior seal ring 1 is positioned at the inner side 5 of seal ring body, and inner seal ring 2 is positioned at the outside 6 of seal ring body, and the seal ring skeleton diameter of exterior seal ring 1 is greater than the seal ring skeleton diameter of described inner seal ring 2.Under this structural design, while being subject to ambient air extruding, exterior seal ring 1 amount of deformation is little, the amount of deformation of inner seal ring 2 is large, while being subject to ambient air extruding, can make axial seal lip limit and radial seal lip limit on inner seal ring 2 be pressed on the corresponding radial seal lip limit of exterior seal ring 1 and axial seal lip limit, thereby it is better to improve sealing effect, on the contrary, in the time being subject to the extruding of bearing inner air, easily push inner seal ring open, realize the steel ball assembly cavity of the discharge bearing of gas, the performances such as the heat radiation of raising bearing.
Claims (4)
1. sting lip formula bearing sealed ring for one kind, include seal ring body, seal ring body is inner side towards bearing ball assembling cavity one side, the opposite side that seal ring body is relative is outside, it is characterized in that: described seal ring body includes the exterior seal ring being fixedly mounted on bearing outer ring, and be fixedly mounted on the inner seal ring on bearing inner race, exterior seal ring and inner seal ring include seal ring skeleton and are attached to the rubbery sealed body on seal ring skeleton, described exterior seal ring radial outer end is the outer ring fixed end being fixed on bearing outer ring, the radial inner end of inner seal ring is the inner ring fixed end being fixed on bearing inner race, between the radial inner end of exterior seal ring and the radial outer end of inner seal ring, be provided with the sealing configuration that axial butt is sealed and matched, sealing configuration includes the radial seal lip limit radially extending to form and extends axially the axial seal lip limit of formation, top, axial seal lip limit is pressed on radial seal lip limit realizes and being sealed and matched.
2. sting according to claim 1 lip formula bearing sealed ring, it is characterized in that: described exterior seal ring is provided with a radial seal lip and an axial seal lip limit, on inner seal ring, be provided with accordingly with exterior seal ring on the axial seal lip limit that is sealed and matched of radial seal lip limit butt, and with exterior seal ring on the radial seal lip limit that is sealed and matched of axial seal lip limit butt.
3. sting according to claim 2 lip formula bearing sealed ring, it is characterized in that: the axial seal lip limit on described exterior seal ring is positioned at the side position of radial seal lip limit near outer ring fixed end, the axial seal lip limit on inner seal ring is positioned at the side position of radial seal lip limit near inner ring fixed end.
4. according to stinging lip formula bearing sealed ring described in claim 2 or 3, it is characterized in that: described exterior seal ring is positioned at the inner side of seal ring body, inner seal ring is positioned at the outside of seal ring body, and the seal ring skeleton diameter of exterior seal ring is greater than the seal ring skeleton diameter of described inner seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420351014.3U CN203926420U (en) | 2014-06-27 | 2014-06-27 | Sting lip formula bearing sealed ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420351014.3U CN203926420U (en) | 2014-06-27 | 2014-06-27 | Sting lip formula bearing sealed ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926420U true CN203926420U (en) | 2014-11-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420351014.3U Active CN203926420U (en) | 2014-06-27 | 2014-06-27 | Sting lip formula bearing sealed ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253140A (en) * | 2017-12-16 | 2018-07-06 | 洛阳轴承研究所有限公司 | Shafting support end sealing structure and its framework type sealing ring |
-
2014
- 2014-06-27 CN CN201420351014.3U patent/CN203926420U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253140A (en) * | 2017-12-16 | 2018-07-06 | 洛阳轴承研究所有限公司 | Shafting support end sealing structure and its framework type sealing ring |
| CN108253140B (en) * | 2017-12-16 | 2021-04-02 | 洛阳轴承研究所有限公司 | Shafting support end sealing structure and framework type sealing ring thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |