CN202082277U - Rolling mill bearing with inner end seals - Google Patents
Rolling mill bearing with inner end seals Download PDFInfo
- Publication number
- CN202082277U CN202082277U CN2011202076581U CN201120207658U CN202082277U CN 202082277 U CN202082277 U CN 202082277U CN 2011202076581 U CN2011202076581 U CN 2011202076581U CN 201120207658 U CN201120207658 U CN 201120207658U CN 202082277 U CN202082277 U CN 202082277U
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- CN
- China
- Prior art keywords
- bearing
- face
- inner race
- roller
- groove
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a rolling mill bearing with inner end seals, which comprises two inner rings, two outer rings, four rows of rollers and a sealing pair, wherein the four rows of rollers are arranged between the inner rings and the outer rings, and the sealing pair is mounted on the outer end face in the bearing. The rolling mill bearing with the inner end seals is characterized in that two end face grooves surrounded the inner rings are arranged on two opposite end faces of the two inner rings respectively, wherein positions of the end face grooves correspond to each other and the end face grooves are identical in size. Annular rubber-made end seals are mounted in the two end face grooves to form fixed seals between the two end faces of the bearing. The annular rubber fixed seals are additionally mounted on the end faces of inner rings of an existing rolling mill bearing in the prior art, so that the rolling mill bearing with the inner end seals is formed, the inner end seals can block water flow led in by an inner-diameter helical groove, and the rolling mill bearing can be protected.
Description
Technical field
The utility model relates to the roller-mill bearing technical field, particularly a kind of roller-mill bearing that has inner envelope.
Background technique
Prior art has the roller-mill bearing of sealing, can be referring to utility model patent: a kind of pair of inner ring has the milling train stuffing box bearing of spacing snap ring, the patent No. 200720190544.4, and its content mainly is:
A kind of pair of inner ring has the milling train stuffing box bearing of spacing snap ring, the sealing pair that it includes two outer rings, two inner rings, is contained in four row cylinder rollers between bearing inner race and the outer ring and is contained in exterior edge face in the bearing, it is characterized in that, on the inner ring raceway of two inner ring end face seal pairs, be respectively equipped with circular groove, the spring arch clasp that has opening that exceeds inner ring raceway is installed in this circular groove, and its structure as shown in Figure 1.
Reality is: when using " two inner rings have the milling train stuffing box bearing of spacing snap ring "; for the ease of dismounting; must adopt Spielpassung between bearing bore diameter and the roller neck; and Spielpassung may cause creeping of bearing bore diameter and roller neck; the iron filings that produced grind bad roll neck in order to prevent to creep; be manufactured with spiral chute at bearing bore diameter, the usefulness that this spiral chute can play the storage oiling agent and take in fouls such as iron filings, thereby protection roller neck.
Yet, because inevitable roll axial float makes that the axial restraint of bearing is very difficult, often can produce bigger axial clearance between two bearing inner races in the operation of rolling.Therefore the water that cools off roll can enter into the bearing bore diameter middle part promptly between two bearing inner race opposing end faces along spiral chute, enter bearing inside along the gap of two inner ring end faces of bearing and the gap of spring arch clasp and rubber back-up ring again, destroyed the sealing effect of bearing.
The deficiency of this technology is: " two inner rings have the milling train stuffing box bearing of spacing snap ring " though two outer ring opposing end faces bands the rubber back-up ring is housed, but and rise on the inner ring between the spring arch clasp of position-limiting action and still have bigger gap, do not form sealing pair.
The model utility content
The purpose of this utility model is to provide a kind of the problems referred to above that overcome, and can form excellent sealing effect between two bearing inner races, thereby the water that prevents to cool off roll enters the roller-mill bearing of bearing inside.
For achieving the above object, the utility model adopts following design proposal:
A kind of roller-mill bearing that has inner envelope, the sealing pair that it includes two bearing inner races, two bearing outer rings, is arranged on four row rollers between bearing inner race and the bearing outer ring and is installed in exterior edge face in the bearing, it is characterized in that, on two bearing inner race opposing end faces, be respectively equipped with position correspondence, measure-alike end face groove around bearing inner race, the end envelope of the rubber making of annular is installed in described two end face grooves, forms the static seal between two bearing faces.
Aforesaid roller-mill bearing, wherein preferably, cross section on described end is enclosed in axially is the combination of rectangle and taper, and the rectangular cross-section part of this end envelope is inlayed in the groove of any bearing inner race end face into and fixed, and the tapered cross-section face portion stretches in the end face groove of another bearing inner race.
Aforesaid roller-mill bearing, wherein preferably, the degree of depth and the width of the end face groove on the described bearing inner race are respectively 4mm.
Aforesaid roller-mill bearing wherein preferably, is respectively equipped with circular groove on the inner ring raceway of described two bearing inner race end face seal pairs, the spring arch clasp that has opening that exceeds inner ring raceway is installed in this circular groove.
The beneficial effects of the utility model are:
Roller-mill bearing of the present utility model is installed the static seal of a rubber ring-type in the inner ring opposing end faces of the roller-mill bearing of prior art, the sealing current of introducing by the internal diameter spiral chute capable of blocking, thus play the effect of protecting bearing.
Below in conjunction with the drawings and specific embodiments the utility model being described further, so that those skilled in the art can clearerly learn the technical solution of the utility model, is not to restriction of the present utility model.
Description of drawings
Fig. 1 is the overall structure schematic representation that the two inner rings of prior art have the roller-mill bearing of spacing snap ring.
Fig. 2 is the overall structure schematic representation that the utility model has the roller-mill bearing of inner envelope.
Fig. 3 is the A portion enlarged diagram of Fig. 2.
Fig. 4 is the structural representation of the end envelope of the utility model roller-mill bearing.
Fig. 5 is the schematic cross-section of the end envelope of the utility model roller-mill bearing.
Embodiment
The roller-mill bearing that has inner envelope of the present utility model as shown in Figure 2.This bearing includes two bearing inner races 1, two bearing outer rings 3, be arranged on four row rollers 2 between bearing inner race and the bearing outer ring and be installed in the sealing pair 4 of exterior edge face in the bearing.On the inner ring raceway of described two bearing inner race end face seal pairs 4, be respectively equipped with circular groove, the spring arch clasp that has opening 5 that exceeds inner ring raceway is installed in this circular groove.Because snap ring exceeds inner ring raceway, makes the end face of bearing outermost one row roller can not answer back to the rubber snap ring that has skeleton on inner ring raceway limit, thus the protection sealing pair.This is a prior art, does not give unnecessary details at this.
Of the present utility model being characterised in that on two bearing inner race 1 opposing end faces, is respectively equipped with position correspondence, the measure-alike end face groove around bearing inner race, in described two opposing end faces grooves, the end envelope 6 that the rubber of annular is made is installed.
On concrete enforcement, preferably, end envelope 6 be banded, as shown in Figure 4, is as the criterion with the groove girth in use and intercepts one section, and it is inlayed in the annular groove of bearing inner race end face into.As shown in Figure 4 and Figure 5, the cross section of end envelope 6 is the combined shaped of a rectangle and a taper, one side this taper combining by base and rectangle.Its rectangular cross-section part 61 is inlayed in the groove of any one bearing inner race end face into fixing, and tapered cross-section part 62 is exposed at outside this bearing face.When bearing is installed on roll, two bearing inner races are relatively installed with the end face that is provided with groove, the end face groove internal fixation of one of them inner ring has the rectangular cross-section part 61 of end envelope 6, and its tapered cross-section face portion 62 promptly stretches in the end face groove of another inner ring, forms the static seal between two bearing faces.Preferably, the degree of depth and the width of the end face groove on the described bearing inner race are respectively 4mm, the length and the wide 4mm that also is respectively of the rectangle part in described end envelope cross section, thereby can be fixed in the end face groove, and the width of tapering part is about 3mm, make it comparatively smooth when stretching into the end face groove of another inner ring, and unlikely slippage, good sealing effect guaranteed.
When bearing working, have cooling water and flow to roll neck from the roll roll surface, flow to the middle part of bearing bore diameter along the spiral chute of bearing bore diameter, when two bearing inner races produce the gap owing to the axial float of roll, the end envelope will be blocked water, makes it to enter bearing inside, thereby plays the effect of sealing, guarantee the cleaning of bearing inside, prolonged the working life of roller-mill bearing.
Claims (4)
1. one kind has the inner roller-mill bearing that seals, the sealing pair that it includes two bearing inner races, two bearing outer rings, is arranged on four row rollers between bearing inner race and the bearing outer ring and is installed in exterior edge face in the bearing, it is characterized in that, on two bearing inner race opposing end faces, be respectively equipped with position correspondence, measure-alike end face groove around bearing inner race, the end envelope of the rubber making of annular is installed in described two end face grooves, forms the static seal between two bearing faces.
2. roller-mill bearing as claimed in claim 1, it is characterized in that, cross section on described end is enclosed in axially is the combination of rectangle and taper, the rectangular cross-section part of this end envelope is inlayed in the groove of any bearing inner race end face into fixing, and the tapered cross-section face portion stretches in the end face groove of another bearing inner race.
3. roller-mill bearing as claimed in claim 1 or 2 is characterized in that, the degree of depth and the width of the end face groove on the described bearing inner race are respectively 4mm.
4. roller-mill bearing as claimed in claim 1 or 2 is characterized in that, is respectively equipped with circular groove on the inner ring raceway of described two bearing inner race end face seal pairs, and the spring arch clasp that has opening that exceeds inner ring raceway is installed in this circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202076581U CN202082277U (en) | 2011-06-20 | 2011-06-20 | Rolling mill bearing with inner end seals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202076581U CN202082277U (en) | 2011-06-20 | 2011-06-20 | Rolling mill bearing with inner end seals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202082277U true CN202082277U (en) | 2011-12-21 |
Family
ID=45342907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202076581U Expired - Fee Related CN202082277U (en) | 2011-06-20 | 2011-06-20 | Rolling mill bearing with inner end seals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202082277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206816A (en) * | 2018-02-28 | 2019-09-06 | 斯凯孚公司 | Bearing |
-
2011
- 2011-06-20 CN CN2011202076581U patent/CN202082277U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206816A (en) * | 2018-02-28 | 2019-09-06 | 斯凯孚公司 | Bearing |
| CN110206816B (en) * | 2018-02-28 | 2022-09-06 | 斯凯孚公司 | Bearing assembly |
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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: 20111221 Termination date: 20150620 |
|
| EXPY | Termination of patent right or utility model |