CN105114470A - Sealing structure of bearing inner ring - Google Patents
Sealing structure of bearing inner ring Download PDFInfo
- Publication number
- CN105114470A CN105114470A CN201510463663.1A CN201510463663A CN105114470A CN 105114470 A CN105114470 A CN 105114470A CN 201510463663 A CN201510463663 A CN 201510463663A CN 105114470 A CN105114470 A CN 105114470A
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- CN
- China
- Prior art keywords
- bearing
- sealing
- bearing inner
- inner ring
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Motor Or Generator Frames (AREA)
- Sealing Of Bearings (AREA)
Abstract
The invention relates to a sealing structure of a bearing inner ring. The sealing structure is characterized in that the sealing structure comprises annular sealing grooves formed at the end parts of the two ends of the bearing inner ring, and a pair of sealing check rings that are fixedly arranged in the bearing outer ring and correspond to the annular sealing grooves, wherein the sealing check rings consist of annular elastic sealing rings and frames; and the cross sections of the annular sealing grooves are of V-shaped or trapezoidal structures. The cross sections of the annular sealing grooves of the bearing inner ring are changed to be of the V-shaped or trapezoidal structures from step-shaped structures, so that either in a bearing production process or in a bearing using process, when dust and dirt in a surrounding environment of a bearing enter the bearing, a direct entering mode of the dust and the dirt is changed to a circuitous entering mode, the entering difficulty of the dust and the dirt is increased, and the quantities of the dust and the dirt that enter the bearing are reduced. The defects of bearing noise and motor noise caused by the bearing inner ring are overcome; in addition, a bearing yield and a motor installation yield are increased greatly; furthermore, the service life of the bearing is increased greatly.
Description
Technical field
The present invention relates to a kind of sealing configuration of bearing inner race.
Background technique
As shown in Figure 1, the sealing configuration of existing bearing is by caulking gum outer lip, and man type epipharynx and steel plate web frame three part form.Wherein: outer lip and cover collar dustproof groove radial interference fit, jump out to prevent Sealing.The main lip of man type epipharynx and secondary lip and inner ring interference fit, prevent grease from leaking; Sealing element framework plays reinforing function.The sealing structure of inner ring of existing bearing is step-like (as shown in Figure 2), no matter be in Production of bearing process, or in bearing using process, dust in bearing surrounding environment and dirt easily enter Bearing inner, cause channel surface to play typical case to peel off, cause bearing rubbish sound and motor noise bad, produce bearing up-to-standard rate and the decline of motor installation up-to-standard rate, because the impact of dust and dirt makes the wearing and tearing of bearing accelerate, cause the life-span of bearing decline (namely foreign material intrusion-raceway groove impression-stress concentrate-produce scale off-bearing failure or water enters bearing-lubrication failure-generation pit and peels off-bearing failure).
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of technological scheme of sealing configuration of bearing inner race.
The sealing configuration of described a kind of bearing inner race, it is characterized in that comprising be formed in end, bearing inner race two ends annular seal groove, be fixedly arranged in bearing outer ring and a pair Sealing shield ring corresponding with annular seal groove, described Sealing shield ring is made up of the elastic seal ring of ring-type and skeleton, and the cross section of described annular seal grooves is V-type or trapezium structure.
The sealing configuration of described a kind of bearing inner race, is characterized in that described annular seal groove is arranged on the inwall of inner ring along inner ring axis hole direction of axis line.
The sealing configuration of described a kind of bearing inner race, is characterized in that the opening of described V-type groove outwardly.
The sealing configuration of described a kind of bearing inner race, is characterized in that the opening of described dovetail groove outwardly, and opening bore length is greater than base length.
The present invention changes V-type or trapezium structure into by step-like due to the cross section of bearing inner race annular groove, no matter be like this in Production of bearing process, or in bearing using process, when dust in bearing surrounding environment and dirt enter Bearing inner, its approach changes complications into enter by directly entering, add the difficulty that it enters, its inlet is reduced.The bearing rubbish sound be made up of bearing inner race provided by the invention and motor noise is bad improves, meanwhile, bearing up-to-standard rate and motor installation up-to-standard rate improve greatly; In addition, also improve widely the working life of bearing.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing bearing;
Fig. 2 is the sectional structure enlarged view of ring annular groove in Fig. 1 middle (center) bearing;
Fig. 3 is structural representation of the present invention;
Fig. 4 is the sectional structure enlarged view of Fig. 3 annular recess.
Embodiment
Below in conjunction with Figure of description, the present invention will be further described:
Embodiment 1
As shown in Figure 3,4, the sealing configuration of bearing inner race, it comprise be formed in end, bearing inner race 5 two ends annular seal groove 3, be fixedly arranged in bearing outer ring and a pair Sealing shield ring corresponding with annular seal groove, a pair described Sealing shield ring is made up of the elastic seal ring 8 of ring-type and skeleton 7, it is characterized in that: the cross section of described annular seal grooves is " V " type structure, and the opening of this " V " type groove outwardly.
Described annular seal groove is arranged on the inwall of inner ring along inner ring axis hole direction of axis line.In use, when the dust in its surrounding environment and dirt enter Bearing inner, its approach changes complications into enter by directly entering this bearing, adds the difficulty that it enters, its inlet is reduced.Thus making bearing rubbish sound and motor noise is bad improves, bearing up-to-standard rate and motor installation up-to-standard rate improve greatly; In addition, also improve widely the working life of bearing.
Embodiment 2
The cross section of described annular groove is trapezium structure.Outwardly, and opening bore length is greater than base length to the opening of described dovetail groove.
The object that this dovetail groove is arranged is identical with embodiment 1, in order to bearing in use, when the dust in its surrounding environment and dirt enter Bearing inner, its approach changes complications into enter by directly entering, and adds the difficulty that it enters, its inlet is reduced.
Claims (4)
1. the sealing configuration of a bearing inner race, it is characterized in that comprising be formed in end, bearing inner race two ends annular seal groove, be fixedly arranged in bearing outer ring and a pair Sealing shield ring corresponding with annular seal groove, described Sealing shield ring is made up of the elastic seal ring of ring-type and skeleton, and the cross section of described annular seal grooves is V-type or trapezium structure.
2. the sealing configuration of a kind of bearing inner race according to claim 1, is characterized in that described annular seal groove is arranged on the inwall of inner ring along inner ring axis hole direction of axis line.
3. a kind of sealing configuration of bearing inner race according to claim 1 or 2, is characterized in that the opening of described V-type groove outwardly.
4. a kind of sealing configuration of bearing inner race according to claim 1 or 2, it is characterized in that the opening of described dovetail groove outwardly, and opening bore length is greater than base length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510463663.1A CN105114470A (en) | 2015-08-02 | 2015-08-02 | Sealing structure of bearing inner ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510463663.1A CN105114470A (en) | 2015-08-02 | 2015-08-02 | Sealing structure of bearing inner ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105114470A true CN105114470A (en) | 2015-12-02 |
Family
ID=54662540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510463663.1A Withdrawn CN105114470A (en) | 2015-08-02 | 2015-08-02 | Sealing structure of bearing inner ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105114470A (en) |
-
2015
- 2015-08-02 CN CN201510463663.1A patent/CN105114470A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151202 |
|
| WW01 | Invention patent application withdrawn after publication |