CN204025371U - Combined bearing seal ring - Google Patents
Combined bearing seal ring Download PDFInfo
- Publication number
- CN204025371U CN204025371U CN201420443833.0U CN201420443833U CN204025371U CN 204025371 U CN204025371 U CN 204025371U CN 201420443833 U CN201420443833 U CN 201420443833U CN 204025371 U CN204025371 U CN 204025371U
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- ring
- seal lip
- lip
- seal
- axial mounting
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Abstract
The utility model relates to bearing seal structure technical field, is specifically related to a kind of combined bearing seal ring.The technical solution adopted in the utility model is: a kind of combined bearing seal ring, comprise inner frame and purchasing ore, in, purchasing ore is relatively set into the rectangle that there is cavity inside, seal ring is provided with in cavity, seal ring comprises seal ring main body, outer auxiliary seal lip, primary seal lip and interior auxiliary seal lip, the axial mounting ring in outer ring of its inner frame offers kiss-coating holding groove relative to the other end outer side wall being connected one end with inner side radial collar, seal ring main body is extended with upset and embeds and depend on rubber ring in kiss-coating holding groove, depend on rubber ring outer side wall to flush with the axial mounting ring outer side wall in outer ring, depend on rubber ring outer side wall to be provided with annular interference and to press-fit projection.Compared with prior art, inner frame interference press-fits conveniently the utility model, it is reliable to put in place, has good airproof performance, and good waterproof, leakproof fat performance.
Description
Technical field
The utility model relates to bearing seal structure technical field, is specifically related to a kind of combined bearing seal ring.
Background technique
Combined seal structure designs according to the structural feature of hub-bearing unit, it belongs to the sealing of low torsion type, friction torque is less, heating is few, temperature rise is lower, has the excellent ability resisting external mud, dust, also has the ability preventing lubricating grease leakage preferably, the high reliability of hub-bearing unit can be met, reach the effect of permanent seal.
Chinese patent discloses a kind of low torque combined seal ring, and (Authorization Notice No. is: CN 2854231Y, and the patent No. is: 200520015182.6), its main structure is: include inner frame and purchasing ore that sectional shape is L shape, in, purchasing ore is relatively set into the rectangle that there is cavity inside, inner frame includes the axial mounting ring in the outer ring coordinated with bearing outer ring, and inner side radial collar, purchasing ore includes the axial mounting ring of the inner ring coordinated with bearing inner race, and outer radial back-up ring, seal ring is provided with in cavity, seal ring includes the seal ring main body (being welt sealing lip 3 in document) sticked on purchasing ore, be arranged in inner chamber side sidewall with outer radial back-up ring and abut the outer auxiliary seal lip (document is upper sealing lip 4) be sealed and matched, and be arranged in inner chamber side sidewall with the axial mounting ring of inner ring and abut the primary seal lip (document is sealing lip 5) be sealed and matched, interior auxiliary seal lip (being lower seal lip 6 in document), primary seal lip is positioned at outer auxiliary seal lip, between interior auxiliary seal lip, seal ring main body, outer auxiliary seal lip, the root of primary seal lip and interior auxiliary seal lip is all integrally connected with seal ring main body, Seal cage I is formed between primary seal lip and outer auxiliary seal lip, primary seal lip and interior auxiliary seal lip are formed with Seal cage II.
There is following defect in the combined type packing ring of said structure: 1) inner frame (Steel Skeleton) interference is arranged in bearing outer ring and easily produces distortion, causes there is certain assembling gap, and produce poor sealing performance, there is water inlet and leak fat phenomenon; For avoiding gap, existing way strengthens magnitude of interference, but can produce to press-fit and badly to press-fit, press the problems such as not in place;
2) primary seal lip (being middle sealing lip 5 in document), interior auxiliary seal lip (in document for lower seal lip 6) are the annex of main seal effect, wherein primary seal lip plays key effect especially, and the primary seal lip of existing structure exist magnitude of interference be difficult to control, when the lip magnitude of interference of primary seal lip is less, the large heavy discount of sealability, when lip magnitude of interference is larger, primary seal lip easily occurs turning over lip phenomenon, also makes the large heavy discount of sealability.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of inner frame interference to press-fit conveniently, put in place reliably, and the combined bearing seal ring of good airproof performance, realizes good waterproof, leakproof fat performance.
For achieving the above object, the utility model provides following technological scheme: a kind of combined bearing seal ring, include inner frame and purchasing ore that sectional shape is L shape, in, purchasing ore is relatively set into the rectangle that there is cavity inside, inner frame includes the axial mounting ring in the outer ring coordinated with bearing outer ring, and inner side radial collar, purchasing ore includes the axial mounting ring of the inner ring coordinated with bearing inner race, and outer radial back-up ring, seal ring is provided with in cavity, seal ring includes and sticks to inner frame and be positioned at seal ring main body on the sidewall of inner chamber side, be positioned at inner chamber side sidewall with outer radial back-up ring and abut the outer auxiliary seal lip be sealed and matched, and be positioned at inner chamber side sidewall with the axial mounting ring of inner ring and abut the primary seal lip be sealed and matched, interior auxiliary seal lip, primary seal lip is positioned at outer auxiliary seal lip, between interior auxiliary seal lip, outer auxiliary seal lip, the root of primary seal lip and interior auxiliary seal lip is all integrally connected with seal ring main body, it is characterized in that: the axial mounting ring in outer ring of described inner frame offers kiss-coating holding groove relative to the other end outer side wall being connected one end with inner side radial collar, seal ring main body is extended with upset and embeds and depend on rubber ring in kiss-coating holding groove, depend on rubber ring outer side wall to flush with the axial mounting ring outer side wall in outer ring, depend on rubber ring outer side wall to be provided with annular interference and to press-fit projection.
By adopting technique scheme, the outer ring axial mounting ring end kiss-coating process of inner frame is formed depends on rubber ring, and rubber ring forms annular interference press-fit projection depending on, rely on rubber to realize interference to press-fit, have and press-fit convenient and arrival rate is high, interference fit is reliable, good seal performance, and before preventing, inner frame interference is installed the gap water inlet of generation distortion and leaks fat phenomenon.
The utility model is set to further: the lip one-tenth of described primary seal lip is obliquely installed from the oblique outer radial back-up ring of the axial mounting ring of inner ring of purchasing ore, and the lip of described primary seal lip is provided with recess.
By adopting technique scheme, cove design, when improving primary seal lip and purchasing ore matching allowance, can well prevent to occur turning over lip problem when installing, thus improve the reliability that is sealed and matched of primary seal lip, improve sealability, improving sealing lip place has into water and the phenomenon of leaking fat.
The utility model is set to further: described recess sectional shape is triangle, one sidewall of recess is be obliquely installed from the oblique outer radial back-up ring of the axial mounting ring of inner ring of purchasing ore, and the through primary seal lip of opening of recess is near a sidewall of interior auxiliary seal lip.
By adopting technique scheme, well can ensure that the lip upper notch of primary seal lip is pressed on purchasing ore, raising primary seal lip and purchasing ore assemble reliability further, improve further when prevention is installed and occur turning over lip.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is that the utility model specific embodiment combined bearing seal ring is assemblied in schematic diagram on hub bearing;
Fig. 2 is Figure 1A part partial enlarged view;
Fig. 3 is Fig. 2 part B partial enlarged view.
Embodiment
See accompanying drawing 1-3, a kind of combined bearing seal ring disclosed in the utility model, include inner frame 1 and purchasing ore 2 that sectional shape is L shape, inside and outside skeleton 1,2 is relatively set into the rectangle that there is cavity 3 inside, inner frame 1 includes the axial mounting ring 11 in the outer ring coordinated with bearing outer ring 4, and inner side radial collar 12, purchasing ore 2 includes the axial mounting ring 21 of the inner ring coordinated with bearing inner race 5, and outer radial back-up ring 22, seal ring 6 is provided with in described cavity 3, seal ring 6 includes and sticks to inner frame 1 and be positioned at seal ring main body 61 on the sidewall of inner chamber 3 side, be positioned at inner chamber 3 side sidewall with outer radial back-up ring 22 and abut the outer auxiliary seal lip 62 be sealed and matched, and be positioned at inner chamber 3 side sidewall with the axial mounting ring 21 of inner ring and abut the primary seal lip 63 be sealed and matched, interior auxiliary seal lip 64, primary seal lip 63 is positioned at outer auxiliary seal lip 62, between interior auxiliary seal lip 64, Seal cage I is formed between primary seal lip 63 and outer auxiliary seal lip 62, primary seal lip 63 and interior auxiliary seal lip 64 are formed with Seal cage II, the root of described outer auxiliary seal lip 62, primary seal lip 63 and interior auxiliary seal lip 64 is all integrally connected with seal ring main body 61.The axial mounting ring 11 in outer ring of described inner frame 1 offers kiss-coating holding groove 13 relative to the other end outer side wall being connected one end with inner side radial collar 12, and the simple turning of kiss-coating holding groove 13 forms; Seal ring main body 63 is extended with upset and embeds and depend on rubber ring 65 in kiss-coating holding groove 13, depends on rubber ring 65 outer side wall and flushes with axial mounting ring 11 outer side wall in outer ring, depends on rubber ring 65 outer side wall and is provided with annular interference and press-fits projection 66; Inner frame interference press-fit is realized in outer ring by the rubber ring that depends in kiss-coating holding groove, and rely on annular interference press-fit protruding realize ensureing inner frame and outer ring interference fit reliable, rely on rubber to realize interference to press-fit, have and press-fit convenient and arrival rate is high, interference fit is reliable, good seal performance, before preventing, inner frame interference is installed the gap water inlet of generation distortion and leaks fat phenomenon.
For improving sealing further, the lip one-tenth of described primary seal lip 63 is obliquely installed from the oblique outer radial back-up ring 22 of the axial mounting ring 21 of inner ring of purchasing ore 2, and the lip 63 of described primary seal lip 63 is provided with recess 631.Wherein, described recess 631 sectional shape is triangle, and a sidewall of recess 631 is be obliquely installed from the oblique outer radial back-up ring 22 of the axial mounting ring 21 of inner ring of purchasing ore 2, and the through primary seal lip of opening 63 of recess 631 is near a sidewall of interior auxiliary seal lip 64.The design of recess, increase sealing lip magnitude of interference as far as possible, can well prevent to occur turning over lip problem when installing simultaneously, the special construction design of recess, ensure that the lip upper notch of primary seal lip is pressed on purchasing ore, further raising primary seal lip and purchasing ore assemble reliability, improve further when prevention is installed and occur turning over lip.Certainly as the technological scheme that the utility model is feasible, the shape of recess can be rectangle, circular arc etc.
Claims (3)
1. a combined bearing seal ring, include inner frame and purchasing ore that sectional shape is L shape, in, purchasing ore is relatively set into the rectangle that there is cavity inside, inner frame includes the axial mounting ring in the outer ring coordinated with bearing outer ring, and inner side radial collar, purchasing ore includes the axial mounting ring of the inner ring coordinated with bearing inner race, and outer radial back-up ring, seal ring is provided with in cavity, seal ring includes and sticks to inner frame and be positioned at seal ring main body on the sidewall of inner chamber side, be positioned at inner chamber side sidewall with outer radial back-up ring and abut the outer auxiliary seal lip be sealed and matched, and be positioned at inner chamber side sidewall with the axial mounting ring of inner ring and abut the primary seal lip be sealed and matched, interior auxiliary seal lip, primary seal lip is positioned at outer auxiliary seal lip, between interior auxiliary seal lip, outer auxiliary seal lip, the root of primary seal lip and interior auxiliary seal lip is all integrally connected with seal ring main body, it is characterized in that: the axial mounting ring in outer ring of described inner frame offers kiss-coating holding groove relative to the other end outer side wall being connected one end with inner side radial collar, seal ring main body is extended with upset and embeds and depend on rubber ring in kiss-coating holding groove, depend on rubber ring outer side wall to flush with the axial mounting ring outer side wall in outer ring, depend on rubber ring outer side wall to be provided with annular interference and to press-fit projection.
2. combined bearing seal ring according to claim 1, is characterized in that: the lip of described primary seal lip becomes and is obliquely installed from the oblique outer radial back-up ring of the axial mounting ring of inner ring of purchasing ore, and the lip of described primary seal lip is provided with recess.
3. combined bearing seal ring according to claim 2, it is characterized in that: described recess sectional shape is triangle, one sidewall of recess is be obliquely installed from the oblique outer radial back-up ring of the axial mounting ring of inner ring of purchasing ore, and the through primary seal lip of opening of recess is near a sidewall of interior auxiliary seal lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420443833.0U CN204025371U (en) | 2014-08-07 | 2014-08-07 | Combined bearing seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420443833.0U CN204025371U (en) | 2014-08-07 | 2014-08-07 | Combined bearing seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025371U true CN204025371U (en) | 2014-12-17 |
Family
ID=52065241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420443833.0U Active CN204025371U (en) | 2014-08-07 | 2014-08-07 | Combined bearing seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204025371U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909796A (en) * | 2016-06-17 | 2016-08-31 | 浙江万向精工有限公司 | Outer sealing assembly with two skeletons |
| CN116771800A (en) * | 2023-06-07 | 2023-09-19 | 杭州人本轴承有限公司 | Sealing bearing outer baffle connecting structure and assembling method |
| WO2024040711A1 (en) * | 2022-08-25 | 2024-02-29 | 瓦房店轴承集团有限责任公司 | Contact sealing structure of railway bearing |
-
2014
- 2014-08-07 CN CN201420443833.0U patent/CN204025371U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909796A (en) * | 2016-06-17 | 2016-08-31 | 浙江万向精工有限公司 | Outer sealing assembly with two skeletons |
| WO2024040711A1 (en) * | 2022-08-25 | 2024-02-29 | 瓦房店轴承集团有限责任公司 | Contact sealing structure of railway bearing |
| CN116771800A (en) * | 2023-06-07 | 2023-09-19 | 杭州人本轴承有限公司 | Sealing bearing outer baffle connecting structure and assembling method |
| CN116771800B (en) * | 2023-06-07 | 2024-01-30 | 杭州人本轴承有限公司 | Sealing bearing outer baffle connecting structure and assembling method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |