CN201786940U - Sealing structure of bearing inner ring - Google Patents
Sealing structure of bearing inner ring Download PDFInfo
- Publication number
- CN201786940U CN201786940U CN2010202637469U CN201020263746U CN201786940U CN 201786940 U CN201786940 U CN 201786940U CN 2010202637469 U CN2010202637469 U CN 2010202637469U CN 201020263746 U CN201020263746 U CN 201020263746U CN 201786940 U CN201786940 U CN 201786940U
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- bearing
- ring
- sealing
- bearing inner
- inner ring
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Abstract
The utility model discloses a sealing structure of a bearing inner ring, which comprises annular sealing grooves formed at the two ends of the bearing inner ring, and a pair of sealing retaining rings which are fixedly arranged in a bearing outer ring and correspond to the annular sealing grooves, wherein each sealing retaining ring consists of an annular elastic sealing ring and a framework, and the cross section of the each annular sealing groove is in a V-shaped or trapezoidal structure. The cross section of the annular groove of the bearing inner ring is changed from a stepped structure into the V-shaped or trapezoidal structure, accordingly, both in the production and use process of a bearing, dust and dirt in the surrounding environment of the bearings can enter the bearing in a twisting way changed from a direct way, thereby increasing the difficulty of entry and reducing entry amount. The badness of the abnormal noise of the bearing formed by the bearing inner ring and the motor noise is improved, and simultaneously the pass rate of the bearing and the installation pass rate of a motor are greatly improved; and in addition, the service life of the bearing is also greatly improved.
Description
Technical field
The utility model relates to a kind of associated sealing arrangement for bearings, is specifically related to the sealing configuration of bearing inner race.
Background technique
Bearing is a kind of motor car engine water pump spindle shaft coupling bearing assembly, motor car engine tension wheel shaft assembly, hub of motorcycle bearing of being mainly used in.Because it is a relatively independent device, is contained on the break of automobile, directly contacts with dust, mud, water, Environmental Conditions is abominable, so structural design is most important, requires it to have good sealing property.
Bearing mainly is made up of inner ring 2, outer ring 1, lasso, steel ball 4, steel ball retainer 9, Sealing 8.Inner ring and outer ring role are: rotation, support, transmitting torque; The lasso role is: be assemblied in the hole; The steel ball role is: bearing load; The steel ball retainer role is: steel ball is separated; The Sealing role is; Sealing prevents that grease leakage and introduced contaminants, moisture from entering bearing.
As shown in Figure 1, the sealing configuration of existing bearing is by the caulking gum outer lip, and man type epipharynx and steel plate web frame three parts are formed.Wherein: outer lip and the lasso groove radial interference fit of preventing dust, jump out to prevent Sealing.The main lip of man type epipharynx and secondary lip and inner ring interference fit prevent that grease from leaking; The Sealing skeleton plays reinforing function.The inner ring sealing configuration of existing bearing is step-like (as shown in Figure 2), no matter be in the Production of bearing process, still in the bearing using process, dust in the bearing surrounding environment and dirt enter bearing inside easily, cause that channel surface plays the typical case and peels off, cause bearing rubbish sound and motor noise bad, producing bearing up-to-standard rate and motor installation up-to-standard rate descends, because the influence of dust and dirt is accelerated the wearing and tearing of bearing, cause the life-span of bearing to descend (be foreign material intrusions-raceway groove impression-stress concentrate-generation scales off-bearing failure or water enters bearing-lubrication failure-generation pit and peels off-bearing failure).
At present, also do not solve the problems of the technologies described above better technological scheme.
The model utility content
The purpose of this utility model is to overcome the problems referred to above that exist in the background technique, and a kind of improvement of bearing inner race is provided, and the bearing inner race after the improvement should have simple and reasonable, novel in design; Have by its bearing that constitutes that noise is little, product qualified rate is high and the characteristics of long service life.
The utility model proposes following technological scheme:
A kind of sealing configuration of bearing inner race, it comprises the annular seal groove that is formed on end, bearing inner race two ends, be fixedly arranged in the bearing outer ring and with the corresponding a pair of Sealing shield ring of annular seal groove, described a pair of Sealing shield ring is made of the elastic seal ring and the skeleton of ring-type, it is characterized in that: the cross section of described ring packing groove is " V " type or trapezium structure.
The sealing configuration of described 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 bearing inner race is characterized in that: the opening of described " V " type groove outwardly.
The opening of described dovetail groove outwardly, and opening bore length is greater than base length.
The beneficial effects of the utility model are: because the cross section of bearing inner race annular groove is by step-like V-type or the trapezium structure of changing into, no matter be like this in the Production of bearing process, still in the bearing using process, when dust in the bearing surrounding environment and dirt enter bearing inside, its approach changes complications into and enters by directly entering, increased its difficulty that enters, its inlet is reduced.The bearing rubbish sound that the bearing inner race that is provided by the utility model constitutes and motor noise is bad improves, simultaneously, bearing up-to-standard rate and motor installation up-to-standard rate improve greatly; In addition, also improve widely the working life of bearing.
Description of drawings
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 a structural representation of the present utility model.
Fig. 4 is the sectional structure enlarged view of annular groove among Fig. 3.
Embodiment
Below, the technical solution of the utility model is described further by Figure of description.
Shown in Fig. 3,4, the sealing configuration of bearing inner race, it comprises the annular seal groove 3 that is formed on end, bearing inner race 5 two ends, be fixedly arranged in the bearing outer ring and with the corresponding a pair of Sealing shield ring of annular seal groove, described a pair of Sealing shield ring is made of the elastic seal ring 8 and the skeleton 7 of ring-type, it is characterized in that: the cross section of described ring packing groove 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.This bearing in use, dust in its surrounding environment and dirt enter bearing when inner, its approach changes complications into and enters by directly entering, and has increased its difficulty that enters, and its inlet is reduced.Bearing rubbish sound and motor noise are bad to improve thereby make, and bearing up-to-standard rate and motor installation up-to-standard rate improve greatly; In addition, also improve widely the working life of bearing.
The cross section of described annular groove is a trapezium structure.The opening of described dovetail groove outwardly, and opening bore length is greater than base length.
The purpose that this dovetail groove is provided with is identical with embodiment 1, for bearing in use, dust in its surrounding environment and dirt enter bearing when inner, its approach changes complications into and enters by directly entering, and has increased its difficulty that enters, and makes its inlet minimizing.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can not depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (4)
1. the sealing configuration of a bearing inner race, it comprises the annular seal groove (3) that is formed on bearing inner race (5) end, two ends, be fixedly arranged in the bearing outer ring and with the corresponding a pair of Sealing shield ring of annular seal groove, described Sealing shield ring is made of the elastic seal ring (8) and the skeleton (7) of ring-type, and it is characterized in that: the cross section of described ring packing groove (3) is " V " type or trapezium structure.
2. according to the sealing configuration of the described bearing inner race of claim 1, it 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. according to the sealing configuration of claim 1 or 2 described bearing inner races, it is characterized in that: the opening of described " V " type groove outwardly.
4. according to the sealing configuration of claim 1 or 2 described bearing inner races, 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 |
|---|---|---|---|
| CN2010202637469U CN201786940U (en) | 2010-07-19 | 2010-07-19 | Sealing structure of bearing inner ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202637469U CN201786940U (en) | 2010-07-19 | 2010-07-19 | Sealing structure of bearing inner ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786940U true CN201786940U (en) | 2011-04-06 |
Family
ID=43818903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202637469U Expired - Fee Related CN201786940U (en) | 2010-07-19 | 2010-07-19 | Sealing structure of bearing inner ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786940U (en) |
-
2010
- 2010-07-19 CN CN2010202637469U patent/CN201786940U/en not_active Expired - Fee Related
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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: 20110406 Termination date: 20150719 |
|
| EXPY | Termination of patent right or utility model |