CN105299058A - Seal ring and bearing - Google Patents
Seal ring and bearing Download PDFInfo
- Publication number
- CN105299058A CN105299058A CN201510823460.9A CN201510823460A CN105299058A CN 105299058 A CN105299058 A CN 105299058A CN 201510823460 A CN201510823460 A CN 201510823460A CN 105299058 A CN105299058 A CN 105299058A
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- China
- Prior art keywords
- ring
- outer ring
- inner ring
- lip limit
- seal
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- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a seal ring and a bearing and relates to the field of bearings. The problems that an inner ring seal groove of a traditional bearing with a seal ring is difficult to process, and collision injuries caused in a thermal treatment process are difficult to control effectively are solved. The inverted Y-shaped seal ring comprises a framework and a rubber outer ring, wherein both the framework and the rubber outer ring are annular; the rubber outer ring wraps the framework externally; a first lip and a second lip are arranged on an inner ring part of the rubber outer ring; the second lip is thinner than the first lip; and the second lip can swing around the connecting part between the second lip and the first lip. The bearing with the inverted Y-shaped seal ring comprises an outer ring, an inner ring, a rolling body, a retainer and the seal ring, wherein a seal groove formed in the inner ring is of a stair structure with a certain angle. Accordingly, the processing difficulty and the defective rate are reduced, and the seal performance of the bearing is improved.
Description
Technical field
The present invention relates to field of bearings, specifically a kind of chevron shaped seal ring and the bearing with chevron shaped seal ring.
Background technique
At present, many rolling bearings by the form that increases seal ring to prevent the intrusion of the loss of internal lubricant and external dust and moisture, impurity, to be with the double-row angular contact bal bearing of seal ring, at present main what adopt is two kinds of structures as shown in figures 1 and 3.
With regard to Fig. 1, its bearing inner race adopts without seal groove structure, and the sealing of this kind of structure cannot ensure.With regard to Fig. 3, its bearing inner race adopts " V " type structure, and bearing has good sealing, but adopt this kind of structure, difficulty of processing is very large on the one hand, and the cutter according to monolithic is processed, be subject to the restriction of cutter, the shape meeting drawing requirement completely cannot be processed into; According to profile cutter, seal groove is processed separately, not only efficiency has obvious reduction, and in course of working, profile cutter is that directly incision is entered, like this in turning process owing to just there will be the burr of flange by the end face of extruding bearing inner race of cutter, form the phenomenon that bearing inner race end face edge size is large and heart portion size is little, form the recessed heart of end face, thus bring impact to mill processing.On the other hand, because the seal groove opening edge of this " V " type is very thin, in inner ring heat treatment process, if bad being easy to of process control causes bump injury, scrapping of part will be caused like this.
Summary of the invention
For the poor sealing easy to process that the sealing configuration that rolling bearing is traditional exists, the difficulty processing of good airproof performance, and hold flimsy problem, the invention provides a kind of chevron shaped seal ring and the bearing with chevron shaped seal ring, the generation of the problems referred to above can be avoided.
The present invention solves the technological scheme that its technical problem takes:
A kind of chevron shaped seal ring comprises, skeleton and rubber outer ring, described skeleton and rubber outer ring are all in circular, and described rubber outer ring is coated on the outside of described skeleton, described rubber outer ring comprises the outer ring portion of annulus outer radius, be positioned at the inner ring portion at internal radius place, and connect the intermediate portion in outer ring portion and inner ring portion.
On the section of seal ring:
Described rubber outer ring intermediate portion and described skeleton are compounded to form the sheet of consistency of thickness;
Be provided with bending section outside described skeleton, and described bending section is embedded in the skeleton insertion groove in the portion of described outer ring;
Be embedded in the skeleton insert port in described inner ring portion inside described skeleton downwards;
Edge, described inner ring portion is provided with the first lip limit extended below inside skew back;
Edge, described inner ring portion is provided with and extends out and the second lip limit extended below outside skew back from the first lip limit; And the second described lip limit is larger than the flexibility on the first lip limit, described second lip limit can swing around the joint on itself and the first lip limit.
The length on described second lip limit is longer than the length on the first lip limit.
The thickness on the Thickness Ratio first lip limit on described second lip limit is thin.
According to a specific embodiment of the present invention, described outer ring portion is also provided with the 3rd inclined-plane.
According to another embodiment of the present invention, described skeleton adopts No. 10 steel plates.
According to another embodiment of the present invention, described rubber outer ring adopts nitrile butadiene rubber.
A kind of bearing with chevron shaped seal ring, comprise outer ring, inner ring, rolling element, retainer and seal ring, described outer ring, inner ring and retainer are loop configuration, and described inner ring only relatively rotates relative to outer ring, and namely described inner ring does not do axial movement relative to outer ring.
The dual-side of described outer ring is respectively equipped with the annular notches that a section is n font along place,
The both sides of described inner ring are provided with seal groove, the outwards uncovered opening groove that described seal groove is made up of the second inclined-plane and a ring surface, and described second inclined-plane is by the outward-dipping setting to axle center of the outer surface of inner ring;
The described first lip limit of described seal ring is resisted against on described inner ring outer surface, and described second lip limit is resisted against on two groove faces of described seal groove.
Seal ring is the chevron shaped seal ring of above-mentioned one, repeats no more.
According to a specific embodiment of the present invention, the described seal groove be arranged on outer ring is provided with the first inclined-plane, and the first described inclined-plane matches with the 3rd inclined-plane on seal ring, to facilitate the loading of seal ring.
According to another embodiment of the present invention, described retainer adopts and strengthens nylon.
According to another embodiment of the present invention, described outer ring, inner ring and rolling element adopt Bearing Steel.
Described bearing can bear thrust load.
The angle of described second inclined-plane and inner ring outer surface is 120 degree.
The invention has the beneficial effects as follows:
The bearing of the chevron shaped seal ring of band of the present invention is by being designed to the forge piece of step type structure being with several angle by the seal groove on inner ring, this structure is Open architecture, not only reduce difficulty of processing, improve work efficiency, also help part effective control for bump injury when heat treatment, reduce reject rate.
When installing seal ring, the first described lip limit and the external diameter of described inner ring are adjacent to, because the second described lip limit is thinner and soft, excellent adsorption, when the second lip limit is adjacent to the ladder-type seal groove be arranged on inner ring, make the inner space of bearing form the state of near vacuum, thus improve the sealing of bearing, and can not impact the temperature rise of bearing.
Accompanying drawing explanation
Fig. 1 is a kind of sealing configuration of conventional angular contact ball bearing;
Fig. 2 is the enlarged diagram of part A in Fig. 1;
Fig. 3 is the another kind of sealing configuration of conventional angular contact ball bearing;
Fig. 4 is the inner ring of the another kind of sealing configuration of conventional angular contact ball bearing;
Fig. 5 is the enlarged diagram of part B in Fig. 4;
Fig. 6 is the side sectional view of a kind of chevron shaped seal ring and the bearing with chevron shaped seal ring;
Fig. 7 is a kind of side sectional view adopting the bearing outer ring of chevron shaped seal ring;
Fig. 8 is a kind of side sectional view adopting the bearing inner race of chevron shaped seal ring;
Fig. 9 is the enlarged diagram of C part in Fig. 6;
Figure 10 is the enlarged diagram of D part in Fig. 6;
Figure 11 is the enlarged diagram of E part in Fig. 7;
Figure 12 is the enlarged diagram of F part in Fig. 8.
In figure: 1-outer ring, 11-outer ring raceway, 12-notch, 13-first inclined-plane, 2-inner ring, 21-inner ring raceway, 22-second inclined-plane, 3-rolling element, 4-retainer, 5-seal ring, 51-skeleton, 511-bending section, 52-outer ring portion, 521-the 3rd inclined-plane, 522-skeleton insertion groove, 53-inner ring portion, 531-first lip limit, 532-second lip limit, 533-skeleton insert port, 54-intermediate portion.
Embodiment
As shown in Figure 9 and Figure 10, a kind of chevron shaped seal ring 5 is skeleton rubber seal, the rubber ring comprising skeleton 51 and be enclosed within outside skeleton 51, and described rubber ring comprises outer ring portion 52, inner ring portion 53 and connects the intermediate portion 54 in outer ring portion 52 and inner ring portion 53.As shown in Figure 9, described skeleton 51 is provided with bending section 511, and described outer ring portion 52 is provided with skeleton insertion groove 522, and the bending section 511 of skeleton 51 is inserted in skeleton insertion groove 522.As shown in Figure 9, described outer ring portion 52 is also provided with the 3rd inclined-plane 521.
As shown in Figure 10, described inner ring portion 53 comprises the first lip limit 532, lip limit 531, second and skeleton insert port 533.The other end of described skeleton 51 is inserted in skeleton insert port 533, as shown in Figure 10, the first lip limit 531 is provided with in the side away from intermediate portion 54 of skeleton insert port 533, be connected with the first lip limit 531, and being provided with the second lip limit 532 near the side of intermediate portion 54, the first described lip limit 531 and the second lip limit 532 form " people " font.The second described lip limit 532 is long and thin compared with the first lip limit 531, therefore, second lip limit 532 is more soft, can swing around the joint on itself and the first lip limit 531, state shown in Figure 10 be installed on bearing after form, under natural form, the second described lip limit 532 will be in vertical position.
On the whole, described skeleton, outer ring portion, inner ring portion, intermediate portion and the feature that it is arranged, be ring in the present invention.
Seal ring 5 of the present invention can be applied to the bearing that can bear thrust load, and because kind is more, cannot do and illustrate one by one, only carry out structure explanation for double-row angular contact bal bearing at this, the application on other kind of class bearing has similar structure.
As shown in Figure 6, a kind of double-row angular contact bal bearing applying chevron shaped seal ring comprises, outer ring 1, inner ring 2, rolling element 3, retainer 4 and seal ring 5.Described outer ring 1, inner ring 2 and retainer 4 are loop configuration, and described outer ring 1, inner ring 2 and retainer 4 are arrange with one heart.Described retainer 4 is arranged between outer ring 1 and inner ring 2.Described outer ring 1 is provided with outer ring raceway 11, and described inner ring raceway 2 is provided with inner ring raceway 21, and described rolling element 3 is placed in the pocket hole of retainer 4, along the rolling path rolling be made up of inner ring raceway 21 and outer ring raceway 11.Described retainer 4 adopts and strengthens nylon, and described outer ring 1, inner ring 2 and rolling element 3 adopt Bearing Steel.
As shown in figure 11, the both sides of described outer ring 1 are provided with notch 12, and for the ease of installing, described notch 12 is provided with the first inclined-plane 121 near the side of end face, and the first described inclined-plane 121 matches with the 3rd inclined-plane 521 on seal ring 5.
As shown in figure 12, the both sides of described inner ring 2 are provided with seal groove, described seal groove be band several angle forge piece of step type structure, namely on the external diameter of inner ring 2, be provided with the second inclined-plane 22, the second described inclined-plane 22 with the external diameter of inner ring for the downward-sloping certain angle of basal plane.Like this, when installing seal ring 5, the first described lip limit 531 is adjacent to the external diameter of described inner ring 2, because the second described lip limit 532 is thinner and soft, excellent adsorption, the second therefore described lip limit 532 can be adjacent to the second inclined-plane 22, and there is certain deformation adaptive character, make the inner space of bearing form the state of near vacuum, thus improve the sealing of bearing, and can not impact the temperature rise of bearing.
Claims (10)
1. a seal ring, comprising is the circular ring-shaped member be compounded to form by skeleton and rubber outer ring, and described rubber outer ring is coated on the outside of described skeleton, described rubber outer ring comprises outer ring portion, inner ring portion and connects the intermediate portion in outer ring portion and inner ring portion, it is characterized in that:
On the section of seal ring:
Described rubber outer ring intermediate portion and described skeleton are compounded to form the sheet of consistency of thickness;
Be provided with bending section outside described skeleton, and described bending section is embedded in the skeleton insertion groove in the portion of described outer ring;
Be embedded in the skeleton insert port in described inner ring portion inside described skeleton downwards;
Edge, described inner ring portion is provided with the first lip limit extended below inside skew back;
Edge, described inner ring portion is provided with and extends out and the second lip limit extended below outside skew back from the first lip limit; And the second described lip limit is larger than the flexibility on the first lip limit, described second lip limit can swing around the joint on itself and the first lip limit.
2. a kind of seal ring according to claim 1, is characterized in that: the length on described second lip limit is longer than the length on the first lip limit.
3. a kind of seal ring according to claim 2, is characterized in that: the thickness on the Thickness Ratio first lip limit on described second lip limit is thin.
4. a kind of seal ring according to claim 1, is characterized in that: described outer ring portion is also provided with the 3rd inclined-plane.
5. a kind of seal ring according to claim 1, is characterized in that: described skeleton adopts No. 10 steel plates, and described rubber outer ring adopts nitrile butadiene rubber.
6. a bearing, comprises outer ring, inner ring, rolling element, retainer and seal ring, and described outer ring, inner ring, seal ring and retainer are loop configuration, and described inner ring only does relative rotation relative to outer ring, it is characterized in that:
The dual-side of described outer ring is respectively equipped with the annular notches that a section is n font along place,
The both sides of described inner ring are provided with seal groove, the outwards uncovered opening groove that described seal groove is made up of the second inclined-plane and a ring surface, and described second inclined-plane is by the outward-dipping setting to axle center of the outer surface of inner ring;
Seal ring is a kind of seal ring in claim 1 to 5 described in any one, and described first lip limit is resisted against on described inner ring outer surface, and described second lip limit is resisted against on two groove faces of described seal groove.
7. a kind of bearing according to claim 6, is characterized in that: be provided with the first inclined-plane coordinated with the 3rd inclined-plane in described annular notches.
8. a kind of bearing according to claim 6, is characterized in that: described bearing can bear thrust load.
9. a kind of bearing according to claim 6, is characterized in that: the angle of described second inclined-plane and inner ring outer surface is 120 degree.
10. a kind of bearing according to claim 6, is characterized in that: described outer ring, inner ring and rolling element adopt Bearing Steel, and described retainer adopts and strengthens nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510823460.9A CN105299058A (en) | 2015-11-24 | 2015-11-24 | Seal ring and bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510823460.9A CN105299058A (en) | 2015-11-24 | 2015-11-24 | Seal ring and bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105299058A true CN105299058A (en) | 2016-02-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510823460.9A Pending CN105299058A (en) | 2015-11-24 | 2015-11-24 | Seal ring and bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105299058A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127853A (en) * | 1995-01-24 | 1996-07-31 | 曹宗瑞 | Bearing contact type high-efficiency seal structure |
| CN201059319Y (en) * | 2007-07-19 | 2008-05-14 | 常熟长城轴承有限公司 | Water-sealed bearing |
| CN101699090A (en) * | 2009-11-12 | 2010-04-28 | 常熟长城轴承有限公司 | Sealing structure for bearing |
| CN102003467A (en) * | 2010-11-19 | 2011-04-06 | 陈炳顺 | Rolling bearing sealing element and rolling bearing sealing structure |
| CN203230741U (en) * | 2013-04-28 | 2013-10-09 | 福达轴承集团福莱特精工科技有限公司 | Leakage-proof special bearing for automobile clutch |
| CN103967937A (en) * | 2014-05-26 | 2014-08-06 | 江苏万达特种轴承有限公司 | Ultra-wide lip contact sealed bearing |
| CN205173247U (en) * | 2015-11-24 | 2016-04-20 | 山东蓝宇精密轴承制造有限公司 | Sealing washer and bearing |
-
2015
- 2015-11-24 CN CN201510823460.9A patent/CN105299058A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127853A (en) * | 1995-01-24 | 1996-07-31 | 曹宗瑞 | Bearing contact type high-efficiency seal structure |
| CN201059319Y (en) * | 2007-07-19 | 2008-05-14 | 常熟长城轴承有限公司 | Water-sealed bearing |
| CN101699090A (en) * | 2009-11-12 | 2010-04-28 | 常熟长城轴承有限公司 | Sealing structure for bearing |
| CN102003467A (en) * | 2010-11-19 | 2011-04-06 | 陈炳顺 | Rolling bearing sealing element and rolling bearing sealing structure |
| CN203230741U (en) * | 2013-04-28 | 2013-10-09 | 福达轴承集团福莱特精工科技有限公司 | Leakage-proof special bearing for automobile clutch |
| CN103967937A (en) * | 2014-05-26 | 2014-08-06 | 江苏万达特种轴承有限公司 | Ultra-wide lip contact sealed bearing |
| CN205173247U (en) * | 2015-11-24 | 2016-04-20 | 山东蓝宇精密轴承制造有限公司 | Sealing washer and bearing |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20160203 |