CN219865931U - Rubber sealing element for slewing bearing - Google Patents
Rubber sealing element for slewing bearing Download PDFInfo
- Publication number
- CN219865931U CN219865931U CN202321332582.4U CN202321332582U CN219865931U CN 219865931 U CN219865931 U CN 219865931U CN 202321332582 U CN202321332582 U CN 202321332582U CN 219865931 U CN219865931 U CN 219865931U
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- China
- Prior art keywords
- sealing
- seal
- bearing
- lip
- groove
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- 238000007789 sealing Methods 0.000 title claims abstract description 140
- 238000009434 installation Methods 0.000 claims description 23
- 238000010030 laminating Methods 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 239000004519 grease Substances 0.000 abstract description 3
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004073 vulcanization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a rubber sealing piece for a slewing bearing, which comprises a sealing ring, wherein the end part of the sealing ring, which is positioned at the inner ring of the bearing, is used as a supporting end, the end part of the sealing ring, which is positioned at the outer ring of the bearing, is used as a sealing end, the supporting end is provided with a mounting handle which extends downwards, the mounting handle is used for being inserted into a mounting groove at the section of the bearing, the end part of the sealing end is provided with a dustproof lip, a first sealing lip, a second sealing lip and a third sealing lip, the dustproof lip extends upwards obliquely and is jointed with the sealing surface of the outer ring of the bearing after being mounted, the first sealing lip extends upwards obliquely and is jointed with the groove surface of the sealing groove in the sealing ring after being mounted, the second sealing lip extends backwards obliquely and is jointed with the groove surface of the sealing groove in the outer ring of the bearing, and the third sealing lip extends downwards obliquely and is jointed with the sealing surface of the outer ring of the bearing after being mounted. The utility model has excellent pressure maintaining capability and sealing performance, and can effectively prevent the sealing from falling off and the lubricating grease from leaking.
Description
Technical Field
The utility model relates to a rubber sealing element for a slewing bearing, and belongs to the technical field of bearing sealing.
Background
The slewing bearing is a key supporting component of the wind power generation equipment, and ensures that the fan normally operates at a proper windward angle and a proper wind direction. The slewing bearing comprises parts such as an inner ring, an outer ring, rolling bodies, a retainer, a lubricant, a seal and the like. Wherein seal and mainly prevent impurity entering bearing inside in the external environment, prevent inside lubricating grease and reveal, guarantee bearing normal operating.
The fans are mostly installed in mountain areas, coasts, gobi deserts and other areas, and the environment is bad. The slewing bearing works in high air for a long time, is corroded by sunlight and wind and sand for a long time, and has higher sealing maintenance and replacement cost. The slewing bearing is sealed by pure rubber, the sealing lip and the sealing groove are in sealing effect through interference fit, and the sealing installation handle is installed in the installation groove corresponding to the sealing groove. The bearing requires the installation friction of the installation handle to resist the sealing lip friction during operation. When the bearing bears a large overturning moment, the sealing groove and the mounting groove are dislocated. The friction force of the sealing lip part at the local position is larger than the installation friction force, so that the sealing is pulled along with the rotation, and the sealing is dropped out to be invalid. Therefore, the sealing lip is required to have better sealing effect and lower friction force. However, in the existing sealing at present, the sealing effect is not good or the following rotation falling off failure exists.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the rubber sealing piece for the slewing bearing with small interference, which realizes good sealing effect through the mutual matching of the sealing lips and can effectively solve the problem of partial sealing and follow-up falling.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a rubber seal for slewing bearing, includes the sealing washer, the tip that the sealing washer is located the bearing inner race is as the supporting end, the tip that is located the bearing outer race is as the sealing end, the supporting end is equipped with the installation handle that stretches out downwards, the installation handle is used for the cartridge in the mounting groove of bearing section department, the tip of sealing end is equipped with dustproof lip, first seal lip, second seal lip and third seal lip, dustproof lip obliquely upwards stretches out and its installation back and seals face laminating with the bearing outer race, first seal lip obliquely upwards stretches out and installs in the seal groove on the bearing outer race and the face laminating of groove, second seal lip obliquely afterwards stretches out and installs in the seal groove on the bearing outer race and seal groove face laminating of seal groove, the third seal lip obliquely downwards stretches out and its installation back and seals face laminating with the bearing outer race.
As a further preferable aspect of the present utility model, the bearing includes a bearing inner ring and a bearing outer ring, a support table and a mounting groove are provided on the bearing inner ring, and a seal groove is provided on the bearing outer ring.
As a further preference of the scheme, the inner wall of the mounting groove is provided with an arc groove, the inner side surface of the mounting handle is provided with an arc boss, the arc boss is arranged inside the arc groove after being mounted, and the arc boss are in interference fit with each other.
As a further preferable mode of the scheme, an extended auxiliary boss is arranged on the outer side face of the mounting handle, and the auxiliary boss is in interference fit with the inner wall of the mounting groove.
As a further preferable mode of the scheme, the dustproof lip extends upwards obliquely towards the bearing outer ring, the front end of the dustproof lip is provided with a V-shaped sealing lip, the surface of the sealing lip is smooth, and the dustproof lip is extruded to be attached to the outer ring sealing surface a of the bearing outer ring after being installed.
As a further preferable aspect of the present utility model, the first sealing lip is located below the dust lip, a V-shaped sealing lip is provided at the front end thereof, and the sealing lip surface of the first sealing lip is flat, and after installation, it is pressed to fit with the sealing groove surface a of the sealing groove.
As a further preferable mode of the present utility model, the second sealing lip extends in the opposite direction to the first sealing lip, the front end of the second sealing lip is provided with a V-shaped sealing lip, and the sealing lip surface of the second sealing lip is flat, and the second sealing lip is pressed to be attached to the sealing groove surface b of the sealing groove after being mounted.
As a further preferable mode of the scheme, the third sealing lip extends downwards obliquely towards the bearing outer ring, the front end of the third sealing lip is provided with a C-shaped sealing lip, the surface of the sealing lip of the third sealing lip is smooth, and the third sealing lip is extruded to be attached to the outer ring sealing surface b of the bearing outer ring after being installed.
As a further preferable mode of the scheme, the first sealing lip and the second sealing lip are arranged in the sealing groove of the bearing outer ring in a fit interference mode.
As a further preferable aspect of the present utility model, the seal ring is of an integrally formed structure.
The beneficial effects of the utility model are as follows: the sealing element has excellent pressure maintaining capability and sealing performance, and can effectively prevent sealing from falling off and lubricating grease from leaking. The dustproof lip and the sealing lip of the rubber sealing piece are designed into V-shaped sealing lips, so that lip contact pressure can be effectively increased, and sealing effect is improved. Simultaneously, the lip contact area is effectively reduced, the lip friction force is reduced, the interference magnitude of the first sealing lip and the second sealing lip is designed to be smaller, the friction force at the sealing lip is effectively reduced, and the falling off of the sealing follow-up rotation caused by overlarge friction force at the sealing lip is prevented.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
FIG. 1 is a schematic cross-sectional view of a rubber seal for a bearing;
FIG. 2 is a schematic diagram of a rubber seal and bearing assembly;
marked in the figure as: the bearing comprises a bearing 1, a mounting groove 1-1, a mounting groove arc groove 1-2, a mounting groove supporting table 1-3, a bearing inner ring 1-4, a sealing surface a of an outer ring 1-5, a bearing outer ring 1-6, a sealing groove surface a1-7, a sealing groove surface b 1-8 and a sealing surface b of an outer ring 1-9; the sealing ring comprises a sealing ring 2, a mounting handle 2-1, a circular arc boss 2-2, a dustproof lip 2-3, a first sealing lip 2-4, a second sealing lip 2-5, a third sealing lip 2-6 and an auxiliary boss 2-7.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, an embodiment of the present utility model is provided: the utility model provides a rubber seal for slewing bearing, includes the sealing washer, the sealing washer is located the tip of bearing inner race and is regarded as the supporting end, is located the tip of bearing outer lane and is regarded as the sealing end, the supporting end is equipped with the installation handle 2-1 that stretches out downwards, installation handle 2-1 is used for the cartridge in the mounting groove 1-1 of bearing, and the inside and outside both sides of installation handle 2-1 are equipped with circular arc boss 2-2 and auxiliary boss 2-7, auxiliary boss 2-7 is laminated with the inside of installation handle 1-1, and circular arc boss 2-2 is laminated with circular arc recess 1-2 in mounting groove 1-1, reinforcing installation handle 2-1 prevents that the product from coming off with mounting groove 1-1 frictional force. The end part of the sealing end is provided with a dustproof lip 2-3, a first sealing lip 2-4, a second sealing lip 2-5 and a third sealing lip 2-6, wherein the dustproof lip 2-3 extends upwards in an inclined mode, the first sealing lip 2-4 extends upwards in an inclined mode, the second sealing lip 2-5 extends backwards in an inclined mode, and the third sealing lip 2-6 extends downwards in an inclined mode. The dustproof lip 2-3 is attached to an outer ring sealing surface a1-5 of the bearing outer ring after being installed; the first sealing lip 2-4 is attached to the sealing groove surface a1-7 of the sealing groove after being installed, the second sealing lip 2-5 is attached to the sealing groove surface b1-7 of the sealing groove after being installed, and the third sealing lip 2-6 is attached to the outer ring sealing surface b1-9 of the bearing outer ring after being installed.
In this embodiment, the first sealing lip 2-4 and the second sealing lip 2-5 are sealed and attached by using a small interference, and when the rotary supporting shaft is deformed under the overturning moment, one sealing lip is attached and sealed with the sealing groove surface of the first sealing lip 2-4 and the second sealing lip 2-5, so that the friction force at the sealing lip is reduced, and the sealing effect is ensured.
In the embodiment, the dustproof lip 2-3 and the third sealing lip 2-6 are attached to the sealing surface of the bearing outer ring after being mounted, so that a backward balanced acting force can be provided, the arc boss 2-2 of the sealing mounting handle can be tightly attached to the arc groove 1-2 of the mounting groove, and the friction force at the mounting handle is improved.
The rubber sealing piece molded product is in an integrally molded sealing ring shape, has good product applicability, and can be also used for a bearing processing state that the mounting handle is arranged on the outer ring. The extrusion vulcanization production and the compression vulcanization production can be carried out in the production process, and the adaptability of the production process is good.
In conclusion, the rubber sealing piece with the combined structure is provided with the circular mounting handle, the sealing lips can realize good sealing while reducing interference magnitude, and the sealing lips can provide balanced acting force to the mounting handle and improve friction force at the mounting handle. The sealing device can effectively prevent the occurrence of the phenomenon of partial follow-up rotation and falling of the seal and can provide good sealing effect.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It should be understood by those skilled in the art that the above embodiments do not limit the scope of the present utility model in any way, and all technical solutions obtained by equivalent substitution and the like fall within the scope of the present utility model. The utility model is not related in part to the same as or can be practiced with the prior art.
Claims (10)
1. The utility model provides a rubber seal for slewing bearing, includes the sealing washer, the tip that the sealing washer is located the bearing inner race is as the supporting end, the tip that is located the bearing outer race is as the sealing end, the supporting end is equipped with the installation handle that stretches out downwards, the installation handle is used for the cartridge in the mounting groove of bearing section department, a serial communication port, the tip of sealing end is equipped with dustproof lip, first seal lip, second seal lip and third seal lip, dustproof lip slant upwards stretches out and its installation back and sealed face laminating of bearing outer race, first seal lip slant upwards stretches out and installs in the seal groove on the bearing outer race and the laminating of the groove face of seal groove, second seal lip slant back stretch out and install in the seal groove on the bearing outer race and the laminating of groove face, the third seal lip slant stretches out downwards and its installation back and sealed face laminating of bearing outer race.
2. The rubber seal for a slewing bearing according to claim 1, wherein the bearing comprises a bearing inner ring and a bearing outer ring, a supporting table and a mounting groove are arranged on the bearing inner ring, and a sealing groove is arranged on the bearing outer ring.
3. The rubber sealing member for a slewing bearing according to claim 1 or 2, wherein an arc groove is formed in the inner wall of the mounting groove, an arc boss is arranged on the inner side surface of the mounting handle, and the arc boss is located inside the arc groove after being mounted and is in interference fit with the arc groove.
4. A rubber seal for a slewing bearing as claimed in claim 1 or 2, wherein the outer side of the mounting shank is provided with an extended auxiliary boss which is in interference fit with the inner wall of the mounting groove.
5. The rubber seal for a slewing bearing according to claim 1, wherein the dust lip protrudes obliquely upward toward the outer ring of the bearing, and a V-shaped seal lip is provided at the front end thereof, and the surface of the seal lip is flat and is pressed to be fitted to the outer ring sealing surface a of the outer ring of the bearing after the installation.
6. The rubber seal for a slewing bearing according to claim 1, wherein the first seal lip is located below the dust lip, a V-shaped seal lip is provided at a front end thereof, and a seal lip surface of the first seal lip is flat and is pressed to be fitted to a seal groove surface a of the seal groove after installation.
7. The rubber seal for a slewing bearing according to claim 1, wherein the second seal lip protrudes in a direction opposite to the first seal lip, a V-shaped seal lip is provided at a front end thereof, and a seal lip surface of the second seal lip is flat and is pressed to be fitted to a seal groove surface b of the seal groove after installation.
8. The rubber seal for a slewing bearing according to claim 1, wherein the third seal lip extends obliquely downward toward the outer ring of the bearing, a C-shaped seal lip is provided at the front end thereof, and the seal lip surface of the third seal lip is flat and is pressed to be fitted to the outer ring seal surface b of the outer ring of the bearing after installation.
9. The rubber seal for a slewing bearing according to claim 1, wherein the first seal lip and the second seal lip are disposed in the seal groove of the bearing outer ring in an interference fit manner.
10. The rubber seal for a slewing bearing according to claim 1, wherein the seal ring is of a unitary and integrally formed construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321332582.4U CN219865931U (en) | 2023-05-30 | 2023-05-30 | Rubber sealing element for slewing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321332582.4U CN219865931U (en) | 2023-05-30 | 2023-05-30 | Rubber sealing element for slewing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219865931U true CN219865931U (en) | 2023-10-20 |
Family
ID=88332264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321332582.4U Active CN219865931U (en) | 2023-05-30 | 2023-05-30 | Rubber sealing element for slewing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219865931U (en) |
-
2023
- 2023-05-30 CN CN202321332582.4U patent/CN219865931U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |