CN201347968Y - Double-row conical roller bearing of rolling mill based on integral outer ring - Google Patents
Double-row conical roller bearing of rolling mill based on integral outer ring Download PDFInfo
- Publication number
- CN201347968Y CN201347968Y CNU200820232144XU CN200820232144U CN201347968Y CN 201347968 Y CN201347968 Y CN 201347968Y CN U200820232144X U CNU200820232144X U CN U200820232144XU CN 200820232144 U CN200820232144 U CN 200820232144U CN 201347968 Y CN201347968 Y CN 201347968Y
- Authority
- CN
- China
- Prior art keywords
- row
- double
- outer ring
- bearing
- rolling mill
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
- F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
- F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
Abstract
The utility model discloses a double-row conical roller bearing of rolling mill based on integral outer ring, which comprises an inner ring (1), a double-row rolling track outer ring (5), a middle spacer ring (2), a conical roller (3) and a holder (4), wherein the middle portion of the external wall of the double-row rolling track outer ring (5) is provided with an arc groove, and oil injecting holes which point to the circle center of the outer ring are arranged in the arc groove. The number of the oil injecting holes is 4-6. The double-row conical roller bearing of rolling mill of the utility model is mainly applied to the industry of rolling mills. The adopted oil injecting holes have the functions of improving the lubrication and the service life of the bearing.
Description
Technical field
The present invention relates to a kind of tapered roller bearing, more particularly relate to the tapered roller bearing that uses on a kind of milling train, belong to the double-row conical bearing technical field.
Background technique
The double-row conical bearing structure is made up of inner ring, outer ring, middle spacer ring, tapered roller and retainer, double-row conical bearing uses on the milling train of each steel rolling mill, bearing working in impact, high temperature, at a high speed, heavy duty, insufficient lubrication, high pressure water wash away etc. under the bad working environments condition.The design of bearing housing end has Sealing, mainly is to prevent that extraneous foreign matter from entering in the bearing, as impurity, cooling water, iron scale etc.
When firm use Xinmi City sealing, sealing effect is good, but after using a period of time, the sealing effect variation, this moment as untimely replacing Sealing, then sealing effect is very poor, add reasons such as the frequent influence of bearing mounting or dismounting sealing, foreign matters such as the iron scale that produces in the operation of rolling, cooling water will enter in the bearing, and lubricant grease also can leak, and will cause the non-fatigue ruption of bearing like this, reduce the working life of bearing, also can increase the workload of the frequent fatten of workman, and the use amount and the discharge amount of grease, pollution caused to environment.
Summary of the invention
The present invention provides a kind of double-row tapered roller bearing of rolling mill for solving on the above technical problem, has solved extraneous foreign matter and has entered problems such as bearing and lubricant grease leak.
A kind of double-row tapered roller bearing of rolling mill based on integral type outer race of the present invention comprises split type inner ring, integral type outer race, middle spacer ring, tapered roller and a retainer.The outer ring is provided with the biserial raceway that cooperates with two row tapered rollers, and there is an arc groove at outer ring outer wall middle part, and the oil hole that points to the center of circle, outer ring is arranged in the arc groove; Oil hole leads to the space between two row tapered rollers; The space is surrounded by the tapered roller of middle spacer ring, retainer and both sides.In two row tapered rollers between corresponding two rollers intersection point of axis be positioned at bearing inside, thereby the section of two row rollers becomes splayed configuration, the tip is towards the bearing inboard.
The present invention is based on the double-row conical bearing of integral type outer race, the quantity of oil hole is 4-6.Oil hole evenly distributes on the circumference of outer ring.
The present invention compared with prior art has the following advantages: significantly reduced friction, improved lubricating condition, improved lubricated quality, reduced frictional heating and energy loss, thereby improved bearing life greatly.
Description of drawings
Fig. 1 is the sectional structure chart of bearing of the present invention;
Fig. 2 is the sectional structure chart of bearing outer ring of the present invention;
Embodiment
Shown in Fig. 1-2,, a kind of double-row tapered roller bearing of rolling mill based on integral type outer race, comprise split type inner ring 1, integral type outer race 5, middle spacer ring 2, tapered roller 3 and a retainer 4.Wherein, outer ring 5 is provided with the biserial raceway that cooperates with two row tapered rollers 3, and there is an arc groove at 5 outer walls middle part in outer ring, and the oil hole that points to the center of circle, outer ring is arranged in the arc groove; Oil hole leads to the space between the described tapered roller 3 of two row; The space is by middle spacer ring 2, and the tapered roller 3 of retainer 4 and both sides surrounds.In two row tapered rollers between corresponding two rollers intersection point of axis be positioned at bearing inside, thereby the section of two row rollers becomes splayed configuration, the tip is towards the bearing inboard.
In addition, the quantity of oil hole is 4-6, and oil hole evenly distributes on the circumference of outer ring.The double-row tapered roller bearing of rolling mill that with the diameter is 1000mm is an example: the width of outer ring is 260mm; The radius of arc groove is 20.75mm, and the degree of depth of arc groove is 1.8mm; The number of oil hole is 6, and the oil hole diameter is 10mm.There have been these oil holes to help the timely input and the exchange of oiling agent, so not only reduced friction and also having improved lubricatedly simultaneously, helped reducing frictional heating and energy loss.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technological scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (3)
1, a kind of double-row tapered roller bearing of rolling mill based on integral type outer race is characterized in that: comprise split type inner ring (1), integral type outer race (5), a middle spacer ring (2), tapered roller (3) and retainer (4); Wherein,
Described outer ring (5) is provided with the biserial raceway that cooperates with the two described tapered rollers of row (3),
There is an arc groove at outer wall middle part, described outer ring (5), and the oil hole that points to the center of circle, outer ring is arranged in the arc groove;
Described oil hole leads to the space between the two described tapered rollers of row (3);
Described space is surrounded by the described tapered roller (3) of spacer ring (2), described retainer (4) and both sides in described;
In two row described tapered rollers (3) between corresponding two rollers intersection point of axis be positioned at bearing inside, thereby the section of two row rollers becomes splayed configuration, the tip is towards the bearing inboard.
2, the double-row tapered roller bearing of rolling mill based on integral type outer race according to claim 1 is characterized in that: the quantity of described oil hole is 4-6.
3, the double-row tapered roller bearing of rolling mill based on integral type outer race according to claim 2 is characterized in that: described oil hole evenly distributes on the circumference of outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820232144XU CN201347968Y (en) | 2008-12-26 | 2008-12-26 | Double-row conical roller bearing of rolling mill based on integral outer ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820232144XU CN201347968Y (en) | 2008-12-26 | 2008-12-26 | Double-row conical roller bearing of rolling mill based on integral outer ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201347968Y true CN201347968Y (en) | 2009-11-18 |
Family
ID=41367438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820232144XU Expired - Fee Related CN201347968Y (en) | 2008-12-26 | 2008-12-26 | Double-row conical roller bearing of rolling mill based on integral outer ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201347968Y (en) |
-
2008
- 2008-12-26 CN CNU200820232144XU patent/CN201347968Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20100126 |