CN202674038U - Turntable bearing - Google Patents
Turntable bearing Download PDFInfo
- Publication number
- CN202674038U CN202674038U CN 201220320109 CN201220320109U CN202674038U CN 202674038 U CN202674038 U CN 202674038U CN 201220320109 CN201220320109 CN 201220320109 CN 201220320109 U CN201220320109 U CN 201220320109U CN 202674038 U CN202674038 U CN 202674038U
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- Prior art keywords
- seal ring
- ring
- sealing
- section
- outer ring
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- Expired - Lifetime
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Abstract
The utility model discloses a turntable bearing, which comprises an inner ring (1) and an outer ring (2), wherein a first seal member (3) is arranged between the upper end part of the inner ring (1) and the upper end part of the outer ring (2), and a second seal member (4) is arranged between the lower end part of the inner ring (1) and the lower end part of the outer ring (2); and the outer side of at least one of the first seal member (3) and the second seal member (4) is provided with an auxiliary seal ring for preventing the first seal member (3) or the second seal member (4) from falling or being jacked open under oil pressure, and one end of the auxiliary seal ring is fixedly connected with the corresponding inner ring (2) or outer ring (2). The structure design of the turntable bearing can be used to prevent the seal members between the outer ring (1) and the outer ring (2) from falling or being jacked open under oil pressure so as to further prevent the turntable bearing from failure, and thus, the cost of the turntable bearing and high replacement cost can be avoided.
Description
Technical field
The utility model relates to the rotary component technical field, particularly a kind of turntable bearing.
Background technique
The pitch variable bearings of wind-driven generator, driftage bearing reach 20 years projected life, often occur the problems such as volume read-out is too much, oiling is inhomogeneous, long-pending oil bag replacing is untimely, oil extraction is obstructed and seal ring wears out in using at present and cause rubber seal to come off, bearing is in the high aerial operation of 80-100 rice, in case occur, owing to can't in time find, generally all can cause bearing failure.After bearing failure, need to change, because generator set is in the high-altitude, and weight is huge, thereby need super-tonnage crane and other Special Equipments of the special high-lift operation carried out just can change, thereby renewal cost is high, can reach at present ten thousand yuan of 50-60, and this renewal cost is 10 times of a simple bearing price.And pitch variable bearings and turntable bearing such as driftage bearing etc. are the weakest links in the wind-powered electricity generation unit, and in a single day it be damaged, and will cause serious consequence, and to come off or backed down by oil pressure be the main reason that pitch variable bearings and driftage bearing are damaged and structure is aging.
In view of this, how turntable bearing of the prior art is improved, thereby be the problem that those skilled in the art needs solution badly the working life of improving its sealing configuration.
The model utility content
The technical problems to be solved in the utility model is for providing a kind of turntable bearing, the structural design of this turntable bearing can prevent that the Sealing between inner ring and the outer ring from coming off or backed down by oil pressure, and then can prevent that turntable bearing lost efficacy, thereby avoid the expenditure of turntable bearing cost and high replacement cost.
For solving the problems of the technologies described above, the utility model provides a kind of turntable bearing, comprise inner ring and outer ring, be provided with the first Sealing between the upper end portion of described inner ring and the upper end portion of described outer ring, be provided with the second Sealing between the underpart of described inner ring and the underpart of described outer ring; In described the first Sealing and described the second Sealing, at least one the outside is provided with the auxiliary seal ring that prevents that it from coming off or being backed down by oil pressure, and an end of this auxiliary seal ring is fixedly connected with corresponding inner ring or outer ring.
Preferably, the outside of described the first Sealing and described the second Sealing is equipped with described auxiliary seal ring; And the auxiliary seal ring in described the first Sealing outside is defined as the first seal ring, and the auxiliary seal ring in described the second Sealing outside is defined as the second seal ring.
Preferably, described inner ring and described outer ring axially are staggered described turntable bearing, so that the upper-end surface of described outer ring and lower end surface are higher than respectively upper-end surface and the lower end surface of described inner ring;
Described the first Sealing comprise the first straight section section of being fixed on the inner ring, and and the first dovetail section of described outer ring gluing, sealing; Described the second Sealing comprises the second straight section section of being fixed on the outer ring, and and the second dovetail section of described inner ring gluing, sealing.
Preferably, described the first seal ring comprises the first straight line type seal ring, and this first straight line type seal ring is covered in the outside of described the first straight section section, and is fixed on the described inner ring with the one end, compresses described the first dovetail section with its other end;
Described the second seal ring comprises the second straight line type seal ring, and this second straight line type seal ring is covered in the outside of described the second straight section section, and is fixed on the described outer ring with the one end, compresses described the second dovetail section with its other end.
Preferably, described the first seal ring also comprises the curved seal ring of first fold, the curved seal ring of this first fold is fixed on the described outer ring with the one end, and covers the sealing position between the first dovetail section and the outer ring, is covered in the outside of the first straight line type seal ring until bending occurs;
Described the second seal ring also comprises the second bending-type seal ring, this the second bending-type seal ring is fixed on the described inner ring with the one end, and cover sealing position between the second dovetail section and the inner ring,, bending is covered in the outside of the second straight line type seal ring until occuring.
Preferably, described the first seal ring comprises the curved seal ring of first fold, the curved seal ring of this first fold is fixed on the described outer ring with the one end, and covers the sealing position between the first dovetail section and the outer ring, is covered in the outside of the first straight section section until bending occurs;
Described the second seal ring also comprises the second bending-type seal ring, and this second bending-type seal ring is fixed on the described inner ring with the one end, and covers the sealing position between the second dovetail section and the inner ring, is covered in the outside of the second straight section section until bending occurs.
Preferably, the material of described auxiliary seal ring is metal or macromolecular material.
Preferably, described auxiliary seal ring is connected on corresponding outer ring or the inner ring by screw fit, riveted, welding manner or bonding way.
Preferably, described auxiliary seal ring is whole ring part, the circular groups component that perhaps forms for segmentation.
On the basis of existing technology, in the first Sealing of turntable bearing spare provided by the utility model and described the second Sealing, at least one the outside is provided with the auxiliary seal ring that prevents that it from coming off or being backed down by oil pressure.In this kind structural design, because the outside of Sealing is provided with auxiliary seal ring, and an end of this auxiliary seal ring is fixedly connected with corresponding inner ring or outer ring.
In the course of the work, because the location fixation of auxiliary seal ring, turntable bearing is in long-term using process, even can not come off because seal ring is aging yet, simultaneously can be not too high and backed down owing to oil pressure yet, thereby still can guarantee Sealing performance sealability, prevent that turntable bearing lost efficacy.
In sum, the structural design of turntable bearing provided by the utility model can prevent that the Sealing between inner ring and the outer ring from coming off or backed down by oil pressure, and then can prevent that turntable bearing lost efficacy, thereby avoid the expenditure of turntable bearing cost and high replacement cost.
Description of drawings
Fig. 1 is the structural representation of the utility model the first embodiment turntable bearing;
Fig. 2 is the structural representation of the utility model the second embodiment turntable bearing;
Fig. 3 is the structural representation of the third embodiment's turntable bearing of the utility model.
Wherein, the corresponding relation between reference character and the component names is among Fig. 1 to Fig. 3:
1 inner ring;
2 outer rings;
3 first Sealings; 31 first straight section sections; 32 first dovetail sections;
4 second Sealings; 41 second straight section sections; 42 second dovetail sections;
5 first straight line type seal rings;
6 second straight line type seal rings;
The curved seal ring of 7 first folds;
8 second bending-type seal rings.
Embodiment
Core of the present utility model is for providing a kind of turntable bearing, the structural design of this turntable bearing can prevent that the Sealing between inner ring and the outer ring from coming off or backed down by oil pressure, and then can prevent that turntable bearing lost efficacy, thereby avoid the expenditure of turntable bearing cost and high replacement cost.
In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is the structural representation of the utility model the first embodiment turntable bearing; Fig. 2 is the structural representation of the utility model the second embodiment turntable bearing; Fig. 3 is the structural representation of the third embodiment's turntable bearing of the utility model.
In the basic technology scheme, as shown in Figure 1 to Figure 3, turntable bearing provided by the utility model comprises inner ring 1 and outer ring 2, is provided with the first Sealing 3 between the upper end portion of the upper end portion of inner ring 1 and outer ring 2, is provided with the second Sealing 4 between the underpart of the underpart of inner ring 1 and outer ring 2; On the basis of said structure., as shown in Figure 1 to Figure 3, in the first Sealing 3 and the second Sealing 4, at least one the outside is provided with the auxiliary seal ring that prevents that it from coming off or being backed down by oil pressure, and an end of this auxiliary seal ring is fixedly connected with corresponding inner ring 1 or outer ring 2.
In the course of the work, because the location fixation of auxiliary seal ring, turntable bearing is in long-term using process, even can not come off because seal ring is aging yet, simultaneously can be not too high and backed down owing to oil pressure yet, thereby still can guarantee Sealing performance sealability, prevent that turntable bearing lost efficacy.
Need to prove, above-mentioned basic technology scheme comprises three kinds of concrete technological schemes: one for only being that the outside of the first Sealing 3 is provided with auxiliary seal ring; Two for only being that the outside of the second Sealing 4 is provided with auxiliary seal ring; Three for being that the outside of the first Sealing 3 and the second Sealing 4 is equipped with auxiliary seal ring; These three kinds of technological schemes all should be within protection domain of the present utility model.
Particularly, as shown in Figure 1 to Figure 3, the outside of the first Sealing 3 and the second Sealing 4 is equipped with auxiliary seal ring; And the auxiliary seal ring in the first Sealing 3 outsides is defined as the first seal ring, and the auxiliary seal ring in the second Sealing 4 outsides is defined as the second seal ring.
As shown in Figure 1 to Figure 3, inner ring 1 and outer ring 2 axially are staggered turntable bearing, so that the upper-end surface of outer ring 2 and lower end surface are higher than respectively upper-end surface and the lower end surface of inner ring 1;
The first Sealing 3 comprise the first straight section section 31 of being fixed on the inner ring 1, and and the first dovetail section 32 of outer ring 2 gluing, sealings; The second Sealing 4 comprises the second straight section section 41 of being fixed on the outer ring 2, and and the second dovetail section 42 of inner ring 1 gluing, sealing.
On the basis of said structure, make further improvement, thereby can obtain the first embodiment of the present utility model.
Particularly, as shown in Figure 1, the first seal ring comprises the first straight line type seal ring 5, and this first straight line type seal ring 5 is covered in the outside of the first straight section section 31, and is fixed on the inner ring 1 with the one end, compresses the first dovetail section 32 with its other end; The second seal ring comprises the second straight line type seal ring 6, and this second straight line type seal ring 6 is covered in the outside of the second straight section section 41, and is fixed on the outer ring 2 with the one end, compresses the second dovetail section 42 with its other end.
In said structure, as shown in Figure 1, the first straight line type seal ring 5 and the first Sealing 3 all are fixed on the inner ring 1, thereby relative sliding can not occur between the two; The second straight line type seal ring 6 and the second Sealing 4 all are fixed on the outer ring 2, thereby relative sliding can not occur between the two.
As shown in Figure 1, in said structure, because the first straight section section 31 of the first Sealing 3 is fixed in the location of the first straight line type seal ring 5, thereby the first Sealing 3 can not come off owing to aging, can do not backed down by oil pressure simultaneously yet, thereby can guarantee its long-time performance sealability.In addition, because an end of this first straight line type seal ring 5 compresses the first dovetail section 32, thereby can improve the applying degree between the first dovetail section 32 and the outer ring 2, thereby improve the sealing between the two.In addition, the technique effect of the second straight line type seal ring 6 is same as above, does not repeat them here.
On the basis of technique scheme, can also make further improvement, thereby obtain the second embodiment of the present utility model.
Particularly, as shown in Figure 2, the first seal ring comprises the curved seal ring 7 of first fold, and the curved seal ring 7 of this first fold is fixed on the outer ring 2 with the one end, and cover sealing position between the first dovetail section 32 and the outer ring 2,, bending is covered in the outside of the first straight section section 31 until occuring; The second seal ring also comprises the second bending-type seal ring 8, and this second bending-type seal ring 8 is fixed on the inner ring 1 with the one end, and covers the sealing position between the second dovetail section 42 and the inner ring 1, is covered in the outside of the second straight section section 41 until bending occurs.
In the above-described embodiments, the first Sealing 3 is fixed on the inner ring 1, and the curved seal ring 7 of first fold is fixed on the outer ring 2, thereby between the two relative sliding can occur; In like manner, the second Sealing 4 is fixed on the outer ring 2, and the second bending-type seal ring 8 is fixed on the inner ring 1, thereby between the two relative sliding can occur.
In said structure, the curved seal ring of first fold 7 cover the first dovetail sections 32 and and outer ring 2 between the sealing position, thereby the first dovetail section 32 that can further prevent backed down or come off, thereby further improves sealability.In addition, the other end of the curved seal ring 7 of first fold is covered in the first straight section section 31, thereby can play the location fixation to the first straight section section 31, prevents that it from coming off or backed down by oil pressure.In addition, the technique effect of the second bending-type seal ring 8 is same as above, thereby does not repeat them here.
Comprehensive above-mentioned the first embodiment and the second embodiment's structural design just can obtain the third embodiment of the present utility model.
Particularly, as shown in Figure 3, the first seal ring also comprises the curved seal ring 7 of first fold, and the curved seal ring 7 of this first fold is fixed on the outer ring 2 with the one end, and cover sealing position between the first dovetail section 32 and the outer ring 2,, bending is covered in the outside of the first straight line type seal ring 5 until occuring; The second seal ring also comprises the second bending-type seal ring 8, this the second bending-type seal ring 8 is fixed on the inner ring 1 with the one end, and cover sealing position between the second dovetail section 42 and the inner ring 1,, bending is covered in the outside of the second straight line type seal ring 6 until occuring.
Obviously, this third embodiment's technique effect combines the first embodiment and the second embodiment's technique effect, thereby effect is better.
In addition, the material of auxiliary seal ring can be metal or macromolecular material; Auxiliary seal ring is connected on corresponding outer ring 2 or the inner ring 1 by screw fit, riveted, welding manner or bonding way; Auxiliary seal ring is whole ring part, the circular groups component that perhaps forms for segmentation.
Above a kind of turntable bearing provided by the utility model is described in detail.Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (8)
1. turntable bearing, comprise inner ring (1) and outer ring (2), be provided with the first Sealing (3) between the upper end portion of the upper end portion of described inner ring (1) and described outer ring (2), be provided with the second Sealing (4) between the underpart of the underpart of described inner ring (1) and described outer ring (2); It is characterized in that, in described the first Sealing (3) and described the second Sealing (4), at least one the outside is provided with the auxiliary seal ring that prevents that it from coming off or being backed down by oil pressure, and an end of this auxiliary seal ring is fixedly connected with corresponding inner ring (1) or outer ring (2).
2. turntable bearing as claimed in claim 1 is characterized in that, the outside of described the first Sealing (3) and described the second Sealing (4) is equipped with described auxiliary seal ring; And the auxiliary seal ring in described the first Sealing (3) outside is defined as the first seal ring, and the auxiliary seal ring in described the second Sealing (4) outside is defined as the second seal ring.
3. turntable bearing as claimed in claim 2, it is characterized in that, described inner ring (1) and described outer ring (2) axially are staggered described turntable bearing, so that the upper-end surface of described outer ring (2) and lower end surface are higher than respectively upper-end surface and the lower end surface of described inner ring (1);
Described the first Sealing (3) comprise the first straight section section (31) of being fixed on the inner ring (1), and and the first dovetail section (32) of described outer ring (2) gluing, sealing; Described the second Sealing (4) comprises the second straight section section (41) of being fixed on the outer ring (2), and and the second dovetail section (42) of described inner ring (1) gluing, sealing.
4. turntable bearing as claimed in claim 3, it is characterized in that, described the first seal ring comprises the first straight line type seal ring (5), this the first straight line type seal ring (5) is covered in the outside of described the first straight section section (31), and be fixed on the described inner ring (1) with the one end, compress described the first dovetail section (32) with its other end;
Described the second seal ring comprises the second straight line type seal ring (6), this the second straight line type seal ring (6) is covered in the outside of described the second straight section section (41), and be fixed on the described outer ring (2) with the one end, compress described the second dovetail section (42) with its other end.
5. turntable bearing as claimed in claim 4, it is characterized in that, described the first seal ring also comprises the curved seal ring of first fold (7), the curved seal ring of this first fold (7) is fixed on the described outer ring (2) with the one end, and cover sealing position between the first dovetail section (32) and outer ring (2),, bending is covered in the outside of the first straight line type seal ring (5) until occuring;
Described the second seal ring also comprises the second bending-type seal ring (8), this the second bending-type seal ring (8) is fixed on the described inner ring (1) with the one end, and cover sealing position between the second dovetail section (42) and the inner ring (1),, bending is covered in the outside of the second straight line type seal ring (6) until occuring.
6. turntable bearing as claimed in claim 3, it is characterized in that, described the first seal ring comprises the curved seal ring of first fold (7), the curved seal ring of this first fold (7) is fixed on the described outer ring (2) with the one end, and cover sealing position between the first dovetail section (32) and outer ring (2),, bending is covered in the outside of the first straight section section (31) until occuring;
Described the second seal ring also comprises the second bending-type seal ring (8), this the second bending-type seal ring (8) is fixed on the described inner ring (1) with the one end, and cover sealing position between the second dovetail section (42) and the inner ring (1),, bending is covered in the outside of the second straight section section (41) until occuring.
7. such as each described turntable bearing of claim 1 to 6, it is characterized in that, described auxiliary seal ring is connected on corresponding outer ring or the inner ring by screw fit, riveted, welding manner or bonding way.
8. such as claim 1 to 6 times
A described turntable bearing is characterized in that, described auxiliary seal ring is whole ring part, the circular groups component that perhaps forms for segmentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320109 CN202674038U (en) | 2012-07-02 | 2012-07-02 | Turntable bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320109 CN202674038U (en) | 2012-07-02 | 2012-07-02 | Turntable bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202674038U true CN202674038U (en) | 2013-01-16 |
Family
ID=47494945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220320109 Expired - Lifetime CN202674038U (en) | 2012-07-02 | 2012-07-02 | Turntable bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202674038U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720766A (en) * | 2012-07-02 | 2012-10-10 | 北京京冶轧机轴承制造有限公司 | Turntable bearing |
| CN103792176A (en) * | 2014-03-04 | 2014-05-14 | 山东省纺织科学研究院 | Sample clamping device for testing medical mask air exchange pressure difference value |
| CN103939479A (en) * | 2014-04-18 | 2014-07-23 | 洛阳轴研科技股份有限公司 | Slewing bearing with flange |
| CN105673710A (en) * | 2016-04-15 | 2016-06-15 | 蚌埠飞宇轴承有限公司 | Dustproof sealed deep groove ball bearing |
-
2012
- 2012-07-02 CN CN 201220320109 patent/CN202674038U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720766A (en) * | 2012-07-02 | 2012-10-10 | 北京京冶轧机轴承制造有限公司 | Turntable bearing |
| CN103792176A (en) * | 2014-03-04 | 2014-05-14 | 山东省纺织科学研究院 | Sample clamping device for testing medical mask air exchange pressure difference value |
| CN103939479A (en) * | 2014-04-18 | 2014-07-23 | 洛阳轴研科技股份有限公司 | Slewing bearing with flange |
| CN105673710A (en) * | 2016-04-15 | 2016-06-15 | 蚌埠飞宇轴承有限公司 | Dustproof sealed deep groove ball bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102600 Daxing District, Beijing Huang Village street, No. 5 Patentee after: BEIJING JINGYE BEARING CO.,LTD. Address before: 102600 Daxing District, Beijing Huang Village street, No. 5 Patentee before: Beijing Jingye Bearing Manufacture For Rolling Mills Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170306 Address after: 224499 Funing Economic Development Zone, Jiangsu, Huayuan Road, No. 68, No. Patentee after: JIANGSU JINGYE OFFSHORE WIND POWER BEARING MANUFACTURING CO.,LTD. Address before: 102600 Daxing District, Beijing Huang Village street, No. 5 Patentee before: BEIJING JINGYE BEARING CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |