CN203009566U - Double-lip seal type four-point contact ball slewing bearing - Google Patents
Double-lip seal type four-point contact ball slewing bearing Download PDFInfo
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- CN203009566U CN203009566U CN 201220642842 CN201220642842U CN203009566U CN 203009566 U CN203009566 U CN 203009566U CN 201220642842 CN201220642842 CN 201220642842 CN 201220642842 U CN201220642842 U CN 201220642842U CN 203009566 U CN203009566 U CN 203009566U
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Abstract
The utility model belongs to the technical field of a bearing and provides a double-lip seal type four-point contact ball slewing bearing. The double-lip seal type four-point contact ball slewing bearing comprises an inner ring (4), an outer ring (1) and a steel ball (2), an upper seal ring (3) and a lower seal ring (7) are all in double-lip sealed ring structures, the body (9) of each of the upper seal ring (3) and the lower seal ring (7) is provided with two lips which extend to inside or outside and has a sealing effect, the bodies (9) of the upper seal ring (3) and the lower seal ring (7) are arranged in the seal grooves of the outer ring (1) or the inner ring (4), a lip I (10) is arranged on one end face of the inner ring (4) or the outer ring (1), a lip II (11) is arranged on an outer diameter surface of the inner ring or an inner diameter surface of the outer ring. The double-lip seal type four-point contact ball slewing bearing not only has the functions of good dust prevention, water proof and anti-aging, but also can prevent leaking of inner lubricating greases, and has the characters that the sealing effect is good, the structure is compact, the mounting, the maintenance and the use are convenient.
Description
Technical field
The utility model belongs to technical field of bearings, especially relates to a kind of double-lip seal formula four point touching ball slewing bearing.
Background technique
Four point touching ball slewing bearing is a kind of in turntable bearing, and its structure is generally shown in Figure 1, is comprised of outer ring 1, inner ring 4, steel ball 2, spacing block 8, upper seal ring 3, lower seal 7 etc.Four point touching ball slewing bearing can bear larger thrust load, radial load and tilting moment simultaneously, is widely used in the various machinery of the industries such as engineering machinery, harbour machinery, Hoisting Machinery, wind-powered electricity generation, iron and steel.
As shown in Figure 1, what conventional four point touching ball slewing bearing adopted is single lipped joint touch sealing, and seal ring is that banded oil resistant rubber is made, wherein a side has a lip, fill in ringwise in the seal groove of inside and outside circle, lip rides on outer ring or inner ring end face, and the head and the tail docking is bonded.This seal ring can play dust-proof effect preferably, but the lubricating grease that bearing inside often occurs is from seal ring especially jointing leakage phenomenon, thereby the intermittent oiling of having to carries out maintaining.In case in time do not refuel, might cause lubricating grease to be revealed fully, thereby cause dry friction between raceway and steel ball, make bearing early failue.In some workplace, need bearing to have better sealability, not only need to prevent the intrusion of the impurity such as extraneous dust, sandy soil and water, also to stop the lubricating grease of bearing inside toward outward leakage.In order to make bearing have better sealability, need to innovate sealing configuration and the performance of bearing.
The model utility content
The purpose of this utility model is to propose a kind of double-lip seal formula four point touching ball slewing bearing, make it not only have well dustproof, waterproof, anti-aging function, can also prevent the leakage of internal lubrication fat, make bearing need not again to refuel in its life cycle, accomplish non-maintaining, has good sealing effect, compact structure, installation, maintenance, characteristics easy to use.
The utility model adopts following technological scheme for completing above-mentioned purpose:
A kind of double-lip seal formula four point touching ball slewing bearing, described four point touching ball slewing bearing includes inner ring, outer ring and steel ball; Be provided with seal ring and lower seal; Described upper seal ring, lower seal are the loop configuration of double-lip seal; Two lips that seal that all have to the inside on the body of described upper seal ring, lower seal or stretch out laterally are lip I, lip II; The body of described upper seal ring, lower seal is positioned at the seal groove of outer ring or inner ring, and described lip I rides on the end face of inner ring or outer ring, plays the axial seal effect; Described lip II rides on the aperture surface of the outer diametric plane of inner ring or outer ring, plays the radial seal effect.
Upper, inner ring is in lower time when the outer ring, and two lips on described upper seal ring body are that lip I, lip II are stretched out to the inside; The body of described upper seal ring is positioned at the seal groove of outer ring, and described lip I rides on the end face of inner ring, plays the axial seal effect; Described lip II rides on the outer diametric plane of inner ring, plays the radial seal effect; Two lips on described lower seal body are that lip I, lip II are stretched out laterally; The body of described lower seal is positioned at the seal groove of inner ring, and described lip I rides on the end face of outer ring, plays the axial seal effect; Described lip II rides on the aperture surface of outer ring, plays the radial seal effect.
When the outer ring under, inner ring is when upper, two lips on described upper seal ring body are that lip I, lip II are stretched out laterally; The body of described upper seal ring is positioned at the seal groove of inner ring, and described lip I rides on the end face of outer ring, plays the axial seal effect; Described lip II rides on the aperture surface of outer ring, plays the radial seal effect; Two lips on described lower seal body are that lip I, lip II are stretched out to the inside; The body of described lower seal is positioned at the seal groove of outer ring, and described lip I rides on the end face of inner ring, plays the axial seal effect; Described lip II rides on the outer diametric plane of inner ring, plays the radial seal effect.
A kind of double-lip seal formula four point touching ball slewing bearing, the wrapping angle of bearing is 35 °, adopts completely to fill steel ball structure.
a kind of double-lip seal formula four point touching ball slewing bearing that the utility model proposes, adopt the sealing of lips formula, make the lip I of seal ring, lower seal and lip II respectively with aperture surface or the applying of outer diametric plane of end face, inner ring or the outer ring of the corresponding inner ring of institute or outer ring, play simultaneously the effect of axial and radial seal, while is for the concrete applying working condition of this bearing, requirement has higher radially bearing capacity, the novel wrapping angle with bearing of the utility model changes 35 ° into by 45 ° of routine, cancel spacing block, increased the steel ball number, radially dynamic load rating and the basic static capacity (BSC) rating ability of bearing are improved greatly, simultaneously can also bear thrust load and tilting moment, in sum, the utility model not only has well dustproof, waterproof, the anti-aging function, can also prevent the leakage of internal lubrication fat, make bearing need not again to refuel in its life cycle, accomplish non-maintaining, has good sealing effect, compact structure, install, safeguard, characteristics easy to use.
Description of drawings
Fig. 1 is the structural representation of existing single lipped joint touch sealing four point touching ball slewing bearing.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is seal ring in the utility model (lip is inside) structural representation.
Fig. 4 is seal ring in the utility model (lip is outside) structural representation.
Fig. 5 is the sectional drawing of seal ring in the utility model.
In figure: 1, outer ring; 2, steel ball; 3, upper seal ring; 4, inner ring; 5, taper pin; 6, stopper; 7, lower seal; 8, spacing block, 9, body, 10, the lip I, 11, the lip II.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
As shown in Figure 2, a kind of double-lip seal formula four point touching ball slewing bearing, described four point touching ball slewing bearing includes inner ring 4, outer ring 1 and steel ball 2; Be provided with seal ring 3 and lower seal 7; Described upper seal ring 3, lower seal 7 are the loop configuration of double-lip seal; Two lips that seal that all have to the inside on the body 9 of described upper seal ring 3, lower seal 7 or stretch out laterally are lip I 10, lip II 11; The body of described upper seal ring 3, lower seal 7 is positioned at the seal groove of outer ring 1 or inner ring 4, and described lip I 10 rides on the end face of inner ring 4 or outer ring 1, plays the axial seal effect; Described lip II 11 rides on the aperture surface of the outer diametric plane of inner ring or outer ring, plays the radial seal effect.
In this embodiment, two lips on described upper seal ring body 9 are that lip I 10, lip II 11 are stretched out to the inside; The body 9 of described upper seal ring is positioned at the seal groove of outer ring 1, and described lip I 10 rides on the end face of inner ring, plays the axial seal effect; Described lip II 11 rides on the outer diametric plane of inner ring, plays the radial seal effect; Two lips on described lower seal body are that lip I 10, lip II 11 are stretched out laterally; The body 9 of described lower seal is positioned at the seal groove of inner ring, and described lip I 10 rides on the end face of outer ring, plays the axial seal effect; Described lip II 11 rides on the aperture surface of outer ring, plays the radial seal effect.
Fig. 3, Fig. 4, Fig. 5 provide in the utility model, the structural representation of seal ring.
In the utility model, there is no spacing block between two adjacent described steel balls 2, adopt and completely fill steel ball structure, the radially dynamic load rating of bearing and basic static capacity (BSC) rating ability are improved greatly, can also bear thrust load and tilting moment simultaneously.
For the concrete applying working condition of this bearing, require to have higher radially bearing capacity simultaneously, the utility model is designed to 35 ° with the wrapping angle of bearing.
Claims (4)
1. double-lip seal formula four point touching ball slewing bearing, described four point touching ball slewing bearing includes inner ring (4), outer ring (1) and steel ball (2), is provided with seal ring and lower seal; It is characterized in that: described upper seal ring (3), lower seal (7) are the loop configuration of double-lip seal; Two lips that seal that all have to the inside on the body (9) of described upper seal ring (3), lower seal (7) or stretch out laterally are lip I (10), lip II (11); The body (9) of described upper seal ring (3), lower seal (7) is positioned at the seal groove of outer ring (1) or inner ring (4), and described lip I (10) rides on the end face of inner ring (4) or outer ring (1); Described lip II (11) rides on the aperture surface of the outer diametric plane of inner ring or outer ring.
2. a kind of double-lip seal formula four point touching ball slewing bearing according to claim 1, it is characterized in that: lip I (10), lip II (11) on described upper seal ring body are stretched out to the inside; The body of described upper seal ring (9) is positioned at the seal groove of outer ring (1), and described lip I (10) rides on the end face of inner ring, plays the axial seal effect; Described lip II (11) rides on the outer diametric plane of inner ring, plays the radial seal effect; Lip I (10), lip II (11) on described lower seal body are stretched out laterally; The body of described lower seal (9) is positioned at the seal groove of inner ring (4), and described lip I (10) rides on the end face of outer ring; Described lip II (11) rides on the aperture surface of outer ring.
3. a kind of double-lip seal formula four point touching ball slewing bearing according to claim 1, it is characterized in that: lip I (10), lip II (11) on described upper seal ring body are stretched out laterally; The body of described upper seal ring (9) is positioned at the seal groove of inner ring, and described lip I (10) rides on the end face of outer ring, plays the axial seal effect; Described lip II (11) rides on the aperture surface of outer ring, plays the radial seal effect; Lip I (10), lip II (11) on described lower seal body are stretched out to the inside; The body of described lower seal (9) is positioned at the seal groove of outer ring, and described lip I (10) rides on the end face of inner ring; Described lip II (11) rides on the outer diametric plane of inner ring.
4. a kind of double-lip seal formula four point touching ball slewing bearing according to claim 1, it is characterized in that: the wrapping angle of described bearing is 35 °, adopts completely to fill steel ball structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220642842 CN203009566U (en) | 2012-11-29 | 2012-11-29 | Double-lip seal type four-point contact ball slewing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220642842 CN203009566U (en) | 2012-11-29 | 2012-11-29 | Double-lip seal type four-point contact ball slewing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009566U true CN203009566U (en) | 2013-06-19 |
Family
ID=48601163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220642842 Expired - Fee Related CN203009566U (en) | 2012-11-29 | 2012-11-29 | Double-lip seal type four-point contact ball slewing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009566U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966665A (en) * | 2012-11-29 | 2013-03-13 | 洛阳瑞成轴承有限责任公司 | Double-lip sealing type four-point contact ball turntable bearing |
-
2012
- 2012-11-29 CN CN 201220642842 patent/CN203009566U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966665A (en) * | 2012-11-29 | 2013-03-13 | 洛阳瑞成轴承有限责任公司 | Double-lip sealing type four-point contact ball turntable bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20141129 |
|
| EXPY | Termination of patent right or utility model |