CN108361276A - Asymmetric taper roll bearing - Google Patents
Asymmetric taper roll bearing Download PDFInfo
- Publication number
- CN108361276A CN108361276A CN201810371318.9A CN201810371318A CN108361276A CN 108361276 A CN108361276 A CN 108361276A CN 201810371318 A CN201810371318 A CN 201810371318A CN 108361276 A CN108361276 A CN 108361276A
- Authority
- CN
- China
- Prior art keywords
- roller
- row
- retainer
- inner ring
- outer 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.)
- Granted
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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
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- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
- F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to rolling mill bearing technical fields, and in particular to retainer is arranged in a kind of asymmetry taper roll bearing, including inner ring, outer ring, retainer, roller between inner ring and outer ring, roller, two row of roller setting are arranged in retainer pocket hole；It is characterized in that：Two row raceway of the inner ring is asymmetric, and width is different, and two row roller lengths are unequal.The structure setting of the present invention is more reasonable, extends bearing life, in limited milling train space, bearing can carry the stress of bigger.
Description
Technical field
The present invention relates to rolling mill bearing technical fields, and in particular to a kind of asymmetry taper roll bearing.
Background technology
Milling train is rolled for thin stick by thick stick when rolling bar, is inclined-plane in bar arrival end, and rolling drag is very big, and
Rolling mill bearing is double-row conical bearing, due to the particularity of rolling stock, rolling mill bearing one row axis of arrival end in use
The rolling element and interior rollaway nest and outer rollaway nest held is damaged first, and does not have any damage existing in the bearing ring of outlet end and rolling element
As.Steel mill proposes that all stress only have front end rolling element is single-row to bear when rolling starts, bearing when analyzing multiple bearing damage
Axial force should be born in use bears radial load again.Also there is a kind of circular cone roller seamless steel pipe to roll in milling train field
Three huge roller sticks of machine, this milling train are not cylindrical, and pyramid type, in the prior art, rolling mill bearing are symmetrical
Large-scale taper roll bearing, since tapered roll stick is conical to the interaction distance of milling train, so with symmetrical taper roller
Bearing life is very of short duration, and one row rolling element stress of front end is serious, raceway wear-out failure quickly, and it is very multiple to replace rolling mill bearing
Miscellaneous, cost is very high, and serious financial consequences are brought to steel mill, has improved many times bearing according to customer demand, has taken effect very
It is micro-.Technical staff is by repeatedly improving bearing arrangement, and only roller overstriking lengthens, and outer ring thickeies, can not by milling train spacial influence
It thickeies and lengthens excessive, effect unobvious after improvement.
Invention content
In view of the defect of the prior art, the present invention proposes asymmetric taper roll bearing, in use in bearing, long
Raceway and long rolling element bear the arrival end grinding pressure of circular cone roll.Short raceway and short rolling element in outlet end, it is improved not
Symmetrical bearing, big end bear the forefront pressure of circular cone roll, and rear end bears stable nip pressure and improves 5 times of bearing longevity in this way
Life.
In order to achieve the above object, the technical scheme is that asymmetric taper roll bearing, including inner ring, outer ring,
Retainer is arranged in retainer, roller between inner ring and outer ring, roller, two row of roller setting are arranged in retainer pocket hole；Two
Row roller length is unequal.Two column width of inner ring raceway is different, and outer ring raceway width is also different.
Preferably, long roller and short roller length ratio are 7 in the two row roller：3.
Further, the diameter of section of the two row roller is unequal.
Further, baffle ring, the guarantor of a roller are set between the inner ring and outer ring of two row roller axial direction both sides respectively
One semi-round ball guide groove of setting on the baffle ring of frame big end side is held, the centre of sphere of semi-round ball guide groove passes through the central axes of roller,
Semi-round ball protrusion is set on the end face of the retainer big end side of roller, is matched with the semi-round ball guide groove on baffle ring.Setting
Such structure, the more conducively rolling of rolling element make its rotation more stablize, moving will not occur.
Further, the outer ring includes unequal first outer ring of length and the second outer ring, and the inner ring is double raceways
The different inner ring of width.
Further, needle roller is set in the pocket hole both sides hole beam of the retainer, needle roller is contacted with roller rolls in pocket hole.
Using the bearing retainer contacted with roller rolls, the sliding friction between roller and bearing retainer can be made to become rolling and rubbed
It wipes.When bearing runs at high speed, the sliding friction of bearing roller and cage pin is replaced by between bearing roller and needle roller
Rolling friction not only reduces noise, but also rolling friction friction coefficient is small, reduces roller and cage pin sliding friction heat
Generation, while bearing staring torque reduce, extend equipment bearing service life.
Based on the above-mentioned technical proposal, it is exactly that two row tapered roller length are different using asymmetric taper roll bearing, one
The long row of row are short, and bearing carries out Radix Notoginseng boundary, and one end length of stress weight is 70%, and the light one end 30% of stress, long one is listed in
The side of milling train club entrance, and the biserial width of interior rollaway nest and outer rollaway nest is all different.Bearing is in use in this way, long
Raceway and rolling element bear the arrival end grinding pressure of circular cone roll.Short rolling element small end bears the outlet end power of circular cone roll.
Improve 5 times of bearing lives.
Beneficial effects of the present invention：Structure setting is more reasonable, extends bearing life, in limited milling train space, bearing
The stress of bigger can be carried.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of embodiment 2；
In figure：1, the first retainer, 2, long roller, 3, short roller, 4, baffle ring, 5, semi-round ball guide groove, 6, semi-round ball protrusion,
7, the first outer ring, the 8, second outer ring, 9, double roller road inner ring, 10, needle roller, the 11, second retainer.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention be more clear, with reference to the accompanying drawings of the specification and specific example
It is illustrated.
Embodiment 1
Asymmetric taper roll bearing, including inner ring, outer ring, retainer, roller, are arranged retainer between inner ring and outer ring, protect
Hold setting roller in frame pocket hole, two row of roller setting；Two row raceway of the inner ring is asymmetric, and width is different, two row rollings
Sub- length is unequal.
Preferably, long roller 2 and 3 length ratio of short roller are 7 in the two row roller：3.
Further, the diameter of section of the two row roller is unequal.
Further, the retainer includes unequal first retainer, 1 and second retainer 11 of length, longer guarantor
It is 7 that frame length, which is held, with shorter retainer length ratio：3.
Further, the outer ring includes unequal first outer ring, 7 and second outer ring 8 of race length, and the inner ring is
Double raceway inner rings 9, two row raceway width of inner ring are different.
Embodiment 2
Retainer 1 is arranged in asymmetric taper roll bearing, including inner ring, outer ring, retainer 1, roller between inner ring and outer ring,
Roller, two row of roller setting are set in 1 pocket hole of retainer；Two row roller lengths are unequal.
Preferably, long roller 2 and 3 length ratio of short roller are 7 in the two row roller：3.
Further, the diameter of section of the two row roller is unequal.
Further, baffle ring 4, the guarantor of a roller are set between the inner ring and outer ring of two row roller axial direction both sides respectively
One semi-round ball guide groove 5 of setting on the baffle ring of frame big end side is held, 5 centre of sphere of semi-round ball guide groove passes through the central axes of roller,
Semi-round ball protrusion 6 is set on the end face of the retainer big end side of roller, is matched with the semi-round ball guide groove 5 on baffle ring.
Further, the outer ring includes unequal first outer ring, 7 and second outer ring 8 of race length, and the inner ring is
Double raceway inner rings 9, two row raceway width of inner ring are different.
Further, the retainer includes unequal first retainer, 1 and second retainer 11 of length, longer guarantor
It is 7 that frame length, which is held, with shorter retainer length ratio：3.
Further, needle roller 10, needle roller 10 and roller rolls in pocket hole are set in the pocket hole both sides hole beam of the retainer
Contact.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, this
Field technology personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within this hair
In bright protection domain.
Claims (6)
1. asymmetric taper roll bearing, including inner ring, outer ring, retainer, roller, are arranged retainer between inner ring and outer ring,
Roller, two row of roller setting are set in retainer pocket hole；It is characterized in that：Two row raceways of the inner ring are asymmetric, wide
Spend different, two row roller lengths are unequal.
2. asymmetry taper roll bearing according to claim 1, it is characterised in that：In the two row roller long roller with
Short roller length ratio is 7：3.
3. asymmetry taper roll bearing according to claim 1, it is characterised in that：The diameter of section of the two row roller
It is unequal.
4. asymmetry taper roll bearing according to claim 1, it is characterised in that：Respectively in two row roller axial direction both sides
Inner ring and outer ring between baffle ring is set, one semi-round ball of setting is oriented on the baffle ring of the retainer big end side of a roller
Slot, the centre of sphere of semi-round ball guide groove pass through the central axes of roller, semi-round ball are arranged on the end face of the retainer big end side of roller
Protrusion is matched with the semi-round ball guide groove on baffle ring.
5. asymmetry taper roll bearing according to claim 1, it is characterised in that：The outer ring include race length not
Equal the first outer ring and the second outer ring, the inner ring are double raceways, and two row raceway width of inner ring is different.
6. asymmetry taper roll bearing according to claim 1, it is characterised in that：The pocket hole two side holes of the retainer
Needle roller is set on beam, and needle roller is contacted with roller rolls in pocket hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810371318.9A CN108361276B (en) | 2018-04-24 | 2018-04-24 | Asymmetric tapered roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810371318.9A CN108361276B (en) | 2018-04-24 | 2018-04-24 | Asymmetric tapered roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108361276A true CN108361276A (en) | 2018-08-03 |
| CN108361276B CN108361276B (en) | 2020-06-16 |
Family
ID=63008754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810371318.9A Active CN108361276B (en) | 2018-04-24 | 2018-04-24 | Asymmetric tapered roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108361276B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322911A (en) * | 2018-11-30 | 2019-02-12 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Wind-power electricity generation main shaft biserial abnormity self-aligning roller bearing |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US931924A (en) * | 1907-06-26 | 1909-08-24 | Henry Hess | Journal-bearing. |
| US1250595A (en) * | 1917-07-31 | 1917-12-18 | Hyatt Roller Bearing Division United Motors Corp | Rivet connection for tie-bars. |
| DE538331C (en) * | 1931-01-21 | 1931-11-12 | Tyson Roller Bearing Corp | Angular roller bearings |
| GB364860A (en) * | 1931-01-19 | 1932-01-14 | Tyson Roller Bearing Corp | Improvements in tapered roller bearings |
| US1885852A (en) * | 1929-08-13 | 1932-11-01 | Medved Nicholas | Double thrust roller bearing |
| CN2607465Y (en) * | 2003-04-02 | 2004-03-24 | 洛阳轴承集团有限公司 | Double-row reducing conic rolling bearing |
| CN201196207Y (en) * | 2008-05-19 | 2009-02-18 | 瓦房店第一轧机轴承制造有限公司 | Double-row strange-roller conical roller bearing |
| CN106151281A (en) * | 2016-07-30 | 2016-11-23 | 瓦房店光阳轴承集团有限公司 | Retainer with rolling element Structure deformation |
| CN208106975U (en) * | 2018-04-24 | 2018-11-16 | 瓦房店爱国轴承研究院有限公司 | A kind of asymmetry tapered roller bearing |
-
2018
- 2018-04-24 CN CN201810371318.9A patent/CN108361276B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US931924A (en) * | 1907-06-26 | 1909-08-24 | Henry Hess | Journal-bearing. |
| US1250595A (en) * | 1917-07-31 | 1917-12-18 | Hyatt Roller Bearing Division United Motors Corp | Rivet connection for tie-bars. |
| US1885852A (en) * | 1929-08-13 | 1932-11-01 | Medved Nicholas | Double thrust roller bearing |
| GB364860A (en) * | 1931-01-19 | 1932-01-14 | Tyson Roller Bearing Corp | Improvements in tapered roller bearings |
| DE538331C (en) * | 1931-01-21 | 1931-11-12 | Tyson Roller Bearing Corp | Angular roller bearings |
| CN2607465Y (en) * | 2003-04-02 | 2004-03-24 | 洛阳轴承集团有限公司 | Double-row reducing conic rolling bearing |
| CN201196207Y (en) * | 2008-05-19 | 2009-02-18 | 瓦房店第一轧机轴承制造有限公司 | Double-row strange-roller conical roller bearing |
| CN106151281A (en) * | 2016-07-30 | 2016-11-23 | 瓦房店光阳轴承集团有限公司 | Retainer with rolling element Structure deformation |
| CN208106975U (en) * | 2018-04-24 | 2018-11-16 | 瓦房店爱国轴承研究院有限公司 | A kind of asymmetry tapered roller bearing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322911A (en) * | 2018-11-30 | 2019-02-12 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Wind-power electricity generation main shaft biserial abnormity self-aligning roller bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108361276B (en) | 2020-06-16 |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| GR01 | Patent grant |