CN108825648B - Double-row bearing for rolling mill - Google Patents
Double-row bearing for rolling mill Download PDFInfo
- Publication number
- CN108825648B CN108825648B CN201811035806.9A CN201811035806A CN108825648B CN 108825648 B CN108825648 B CN 108825648B CN 201811035806 A CN201811035806 A CN 201811035806A CN 108825648 B CN108825648 B CN 108825648B
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- Prior art keywords
- rollers
- annular plate
- grooves
- outer ring
- wall
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- 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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Classifications
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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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/49—Bearings with both balls and rollers
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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
- F16C33/32—Balls
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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
- F16C33/34—Rollers; Needles
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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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- 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
- F16C2322/00—Apparatus used in shaping articles
- F16C2322/12—Rolling apparatus, e.g. rolling stands, rolls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
A double-row bearing for a rolling mill relates to a rolling mill bearing, wherein an inner ring (6) is sleeved in an outer ring (2), two rollers (8) are oppositely arranged and are contacted with each other by bumps (11) respectively arranged to form a group of rollers (8), a plurality of groups of rollers (8) are arranged between the inner ring (6) and the outer ring (2) at intervals, and an annular plate A (3) and an annular plate B (14) are respectively arranged at two ends of the plurality of groups of rollers (8); according to the invention, the rollers are arranged in a structure that the balls are respectively arranged at the two ends of the rollers, the convex blocks are arranged at one ball end part of the balls, and the inner wall of the outer ring and the outer wall of the inner ring are respectively provided with the proper arc-shaped annular grooves, so that the two rollers are combined into a group relatively and arranged between the outer ring and the inner ring, and the purpose of stable operation of the rolling mill bearing under high-speed and heavy-load operation is achieved.
Description
Technical Field
The invention relates to a rolling mill bearing, in particular to a double-row bearing for a rolling mill.
Background
The bearing is an important part in modern mechanical equipment, and has the main functions of supporting a mechanical rotating body, reducing friction coefficient in the motion process and ensuring the rotation precision. The rolling mill bearing is used in the rolling industry, namely rolling nonferrous metal, ferrous metal and nonmetallic products; the bearing used for the roller diameter part of the calendaring roller system and the roller has large radial bearing capacity and is suitable for bearing heavy load and impact load. However, as the speed increases, the shortcomings of conventional rolling mill bearings become more pronounced: the bearing has short service life, large consumption, low finished product precision, serious roll neck abrasion, large axial movement of the roll and the like. The production working condition of the rolling mill in the bar mill is bad, and the burning phenomenon of the rolling mill bearing often occurs, so that the rolling mill has to be temporarily reassembled, and the production of the bar mill is seriously influenced.
Disclosure of Invention
In order to overcome the defects in the background technology, the invention discloses a double-row bearing for a rolling mill, which has the advantages that rollers are arranged in a structure that balls are respectively arranged at two ends of each roller, a convex block is arranged at one end part of each ball, proper arc-shaped annular grooves are respectively arranged on the inner wall of an outer ring and the outer wall of an inner ring, and the two rollers are combined into a group relatively and arranged between the outer ring and the inner ring, so that the aim of stable operation of the bearing for the rolling mill under high-speed and heavy-load operation is fulfilled.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
a double-row bearing for rolling mill comprises an outer ring, rollers, a retainer and an inner ring, wherein four arc-shaped ring grooves A are arranged on the inner wall of the outer ring at intervals, four arc-shaped ring grooves B are arranged on the outer wall of the inner ring at intervals, the rollers comprise rollers, balls are respectively arranged at two ends of each roller, the diameters of the two balls are respectively larger than those of each roller, a lug is arranged at one end part of each ball, a through hole is arranged between the central part of the end part of each lug and the end part of the other ball, the retainer comprises an annular plate A, a pin B and an annular plate B, the annular plate A and the annular plate B are oppositely arranged, a plurality of through holes A are respectively arranged between the two bottom surfaces of the annular plate A and at intervals around the central hole, a hemispherical groove is respectively arranged at the hole edges of the opposite surfaces of the through holes A and the through holes B, the pin A is provided with a screw cap A at one end, the pin A is provided with a screw hole at the other end, the pin B is provided with a screw at one end, the other end of the pin B is sleeved in the outer ring, two rollers are oppositely arranged and contacted with each other through bumps respectively arranged to form a group of rollers, a plurality of groups of rollers are arranged between the inner ring and the outer ring at intervals, four balls arranged on each group of rollers are contacted with four arc-shaped annular grooves A and four arc-shaped annular grooves B respectively, the rollers and bumps arranged on each group of rollers are contacted with the inner wall of the outer ring and the outer wall of the inner ring respectively, the annular plate A and the annular plate B are respectively arranged at two ends of the plurality of groups of rollers, the ends of balls arranged at one end of the plurality of rollers are contacted with hemispherical grooves arranged on the annular plate A, the other end of the pin A penetrates through one end of a through hole formed in each group of rollers after penetrating through the through hole B, and the other end of the pin B penetrates through the other end of the through hole formed in each group of rollers after penetrating through the through hole A, and the screw hole is in threaded connection with the screw rod.
The double-row bearing for the rolling mill is characterized in that nail grooves are respectively formed in the hole edges of the back sides of the perforation A and the perforation B, the nail cap A is arranged in the nail groove formed in the annular plate A, and the nail cap B is arranged in the nail groove formed in the annular plate B.
The length of the pin A is longer than that of the pin B.
The double-row bearing for the rolling mill is characterized in that the outer wall of the outer ring is of an annular plane structure.
The double-row bearing for the rolling mill is characterized in that a chamfer transition is arranged between the outer wall of the outer ring and two end faces of the outer ring.
The double-row bearing for the rolling mill is characterized in that the inner wall of the inner ring is of an annular plane structure.
The double-row bearing for the rolling mill is characterized in that a chamfer transition is arranged between the inner wall of the inner ring and two end faces of the inner ring.
The double-row bearing for the rolling mill is characterized in that cross grooves are respectively formed in the end parts of the nut A and the nut B.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
according to the double-row bearing for the rolling mill, the rollers are arranged in a structure that the balls are respectively arranged at the two ends of the rollers, the protruding blocks are arranged at one ball end part of the balls, the inner wall of the outer ring and the outer wall of the inner ring are respectively provided with the proper arc-shaped annular grooves, the two rollers are relatively combined into a group and arranged between the outer ring and the inner ring, the rollers are arranged in a structure that the balls are arranged at the two ends of the rollers, so that the bearing for the rolling mill can bear radial and axial pressure, and the purpose that the bearing for the rolling mill stably runs under high-speed and heavy-load running is achieved; the invention has reasonable design and strong practicability, enhances the stability of the bearing, effectively prolongs the service life of the bearing and has great market popularization value.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the outer ring of the present invention;
FIG. 3 is a schematic view of the inner ring structure of the present invention;
FIG. 4 is a schematic view of the structure of the roller of the present invention;
FIG. 5 is a schematic view of the structure of the cage of the present invention;
fig. 6 is a schematic structural view of the pin B of the present invention.
In the figure: 1. an outer ring outer wall; 2. an outer ring; 3. an annular plate A; 4. a nail cap A; 5. a pin A; 6. an inner ring; 7. an inner wall of the inner ring; 8. a roller; 9. a roller; 10. a ball; 11. a bump; 12. a nail cap B; 13. a pin B; 14. an annular plate B; 15. an inner wall of the outer ring; 16. an arc-shaped ring groove A; 17. an outer wall of the inner ring; 18. an arc-shaped ring groove B; 19. a through hole; 20. a screw; 21. perforating A; 22. hemispherical grooves; 23. perforating B; 24. a nail groove; 25. screw holes.
Description of the embodiments
The invention will be explained in more detail by the following examples, which are not intended to limit the invention thereto, and the purpose of the present invention is to protect all changes and modifications within the scope of the invention;
the double-row bearing for rolling mill, which is described with reference to figures 1-6, comprises an outer ring 2, rollers 8, a retainer and an inner ring 6, wherein four arc-shaped ring grooves A16 are arranged on the inner ring wall 15 of the outer ring 2 at intervals, the outer ring outer wall 1 of the outer ring 2 is of an annular plane structure, chamfer transition is arranged between the outer ring outer wall 1 of the outer ring 2 and two end surfaces of the outer ring 2, four arc-shaped ring grooves B18 are arranged on the outer ring outer wall 17 of the inner ring 6 at intervals, the inner ring inner wall 7 of the inner ring 6 is of an annular plane structure, chamfer transition is arranged between the inner ring inner wall 7 of the inner ring 6 and two end surfaces of the inner ring 6, the rollers 8 comprise rollers 9, two ends of each roller 9 are respectively provided with balls 10, the diameters of the two balls 10 are respectively larger than the diameters of the rollers 9, a bump 11 is arranged at the end part of one ball 10, a through hole 19 is arranged between the central part of the end part of the bump 11 and the end part of the other ball 10, the retainer comprises an annular plate A3, a pin A5, a pin B13 and an annular plate B14, wherein the annular plate A3 and the annular plate B14 are oppositely arranged, a plurality of through holes A21 are formed between two bottom surfaces of the annular plate A3 at equal intervals around a central hole, through holes B23 are respectively formed between two bottom surfaces of the annular plate B14 and at positions corresponding to the through holes A21, hemispherical grooves 22 are respectively formed on hole edges of opposite surfaces of the through holes A21 and the through holes B23, the length of the pin A5 is greater than that of the pin B13, a screw cap A4 is formed at one end of the pin A5, a screw hole 25 is formed at the other end of the pin A5, a screw cap B12 is formed at one end of the pin B13, a screw rod 20 is arranged at the other end of the pin B13, cross grooves 24 are respectively formed at the hole edges of opposite surfaces of the through holes A21 and the through holes B23, the screw cap A4 is arranged in the screw grooves 24 formed in the annular plate A3, the nail cap B12 is arranged in a nail groove 24 formed in the annular plate B14, the inner ring 6 is sleeved in the outer ring 2, two rollers 8 are oppositely arranged and are contacted with a convex block 11 which is respectively arranged to form a group of rollers 8, a plurality of groups of rollers 8 are arranged between the inner ring 6 and the outer ring 2 at intervals, four balls 10 which are respectively arranged on each group of rollers 8 are contacted with four arc-shaped annular grooves A16 and four arc-shaped annular grooves B18, a roller 9 and a convex block 11 which are respectively arranged on each group of rollers 8 are contacted with an inner wall 15 and an outer wall 17 of the outer ring, an annular plate A3 and an annular plate B14 are respectively arranged at two ends of a plurality of groups of rollers 8, the ends of balls 10 which are respectively arranged at one end of a plurality of rollers 8 are contacted with a hemispherical groove 22 which is respectively arranged at one end of the annular plate A3, one end of a ball 10 which is respectively arranged at the other end of a plurality of rollers 8 is contacted with a hemispherical groove 22 which is respectively arranged at the other end of the annular plate B14, one end of a pin A5 penetrates through a through hole 19 which is arranged at the other end of each group of rollers 8 after penetrating through a through hole B23, the other end of the pin B13 penetrates through a through hole A21, and the other end of the through hole 19 which is respectively arranged at the other end of the through hole 19 is respectively arranged at other end of the through hole 19, threaded hole 19 is screwed by the other end and threaded connection.
When the double-row bearing for the rolling mill is used, a proper amount of bearing oil is smeared on the inner wall 15 of the outer ring 2 and in the arc-shaped annular groove A16, a proper amount of bearing oil is smeared on the outer wall 17 of the inner ring 6 and in the arc-shaped annular groove B18, the outer ring 2 is sleeved outside the inner ring 6, the outer ring 2 and the inner ring 6 are eccentric, a proper amount of rollers 8 are put between the outer ring 2 and the inner ring 6, the rollers 8 are placed in groups, the balls 10 are arranged between the arc-shaped annular groove A16 and the corresponding arc-shaped annular groove B18, the groups of rollers 8 are separated and positioned, the ends of the balls 10 arranged at one ends of the groups of rollers 8 are respectively contacted with a plurality of hemispherical grooves 22 arranged at the annular plate A3, the ends of the balls 10 arranged at the other ends of the groups of the rollers 8 are respectively contacted with a plurality of hemispherical grooves 22 arranged at the annular plate B14, one end of the pin A5 is penetrated through one end of the through hole 19 after penetrating through the through hole B23, one end of the pin B13 is penetrated through the through hole 19, and the other end of the through hole 19 is penetrated, and the threaded hole 25 is screwed with the threaded rod 20.
The invention is not described in detail in the prior art.
Claims (6)
1. The utility model provides a biserial bearing for rolling mill, includes outer lane (2), roller (8), holder and inner circle (6), characterized by: four arc-shaped ring grooves A (16) are arranged on the inner wall (15) of the outer ring (2) at intervals, four arc-shaped ring grooves B (18) are arranged on the outer wall (17) of the inner ring (6) at intervals, the roller (8) comprises a roller (9), a plurality of through holes A (21) are respectively arranged at two ends of the roller (9), the diameters of the two balls (10) are respectively larger than those of the roller (9), a lug (11) is arranged at the end part of one ball (10), a through hole (19) is arranged between the central part of the end part of the lug (11) and the end part of the other ball (10), the retainer comprises an annular plate A (3), a pin A (5), a pin B (13) and an annular plate B (14), the annular plate A (3) and the annular plate B (14) are oppositely arranged, a plurality of through holes A (21) are respectively arranged between the two bottom surfaces of the annular plate B (14) and the positions corresponding to the plurality of through holes A (21) at intervals, a hemispherical cap (22) is respectively arranged at the opposite ends of the pin A (5), one end of the pin B (13) is provided with a nut B (12), the other end of the pin B (13) is provided with a screw (20), the inner ring (6) is sleeved in the outer ring (2), two rollers (8) are oppositely arranged and are contacted with each other through bumps (11) respectively arranged to form a group of rollers (8), the groups of rollers (8) are arranged between the inner ring (6) and the outer ring (2) at intervals, four balls (10) arranged on each group of rollers (8) are respectively contacted with four arc-shaped annular grooves A (16) and four arc-shaped annular grooves B (18), the roller (9) arranged on each group of rollers (8) and the bumps (11) are respectively contacted with the inner wall (15) of the outer ring and the outer wall (17) of the inner ring, the annular plate A (3) and the annular plate B (14) are respectively arranged at two ends of the groups of rollers (8), the ends of balls (10) arranged at one ends of the plurality of the rollers (8) are contacted with hemispherical grooves (22) arranged on the annular plate A (3), the ends of the balls (10) arranged at the other ends of the plurality of the rollers (8) are contacted with the hemispherical grooves (22) arranged on the other ends of the annular plate B (14) respectively, the hemispherical grooves (22) are arranged on the other ends of the hemispherical grooves (14) are contacted with the hemispherical grooves (22) respectively arranged on the other ends of the annular plate (8) and are arranged on the other ends of the hemispherical grooves (2) respectively, and the hemispherical grooves (2) respectively arranged on the hemispherical grooves (2) respectively, and the end and the hemispherical grooves (10) are arranged respectively, and the end and the hemispherical grooves are respectively are arranged and are contacted with the hemispherical grooves and are respectively, the other end of the pin B (13) penetrates through the through hole A (21) and then is penetrated by the other end of the through hole (19) arranged on each group of rollers (8), and the screw hole (25) is in threaded connection with the screw rod (20);
nail grooves (24) are respectively formed in the hole edges of the back surfaces of the perforation A (21) and the perforation B (23), the nail cap A (4) is arranged in the nail groove (24) formed in the annular plate A (3), and the nail cap B (12) is arranged in the nail groove (24) formed in the annular plate B (14);
the length of the pin A (5) is longer than the length of the pin B (13).
2. The double row load bearing for rolling mill according to claim 1, characterized in that: the outer ring outer wall (1) of the outer ring (2) is of an annular plane structure.
3. The double row load bearing for rolling mill according to claim 2, characterized in that: the chamfer transition is arranged between the outer ring outer wall (1) of the outer ring (2) and two end surfaces of the outer ring (2).
4. The double row load bearing for rolling mill according to claim 1, characterized in that: the inner wall (7) of the inner ring (6) is of an annular plane structure.
5. The double row load bearing for rolling mill according to claim 4, wherein: the inner wall (7) of the inner ring (6) and the two end surfaces of the inner ring (6) are in chamfer transition.
6. The double row load bearing for rolling mill according to claim 1, characterized in that: the end parts of the nail cap A (4) and the nail cap B (12) are respectively provided with cross grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811035806.9A CN108825648B (en) | 2018-09-06 | 2018-09-06 | Double-row bearing for rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811035806.9A CN108825648B (en) | 2018-09-06 | 2018-09-06 | Double-row bearing for rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108825648A CN108825648A (en) | 2018-11-16 |
| CN108825648B true CN108825648B (en) | 2023-09-12 |
Family
ID=64149505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811035806.9A Active CN108825648B (en) | 2018-09-06 | 2018-09-06 | Double-row bearing for rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108825648B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828468A (en) * | 2019-04-23 | 2020-10-27 | 何江文 | High-precision bearing with special structure |
| CN114704547B (en) * | 2022-04-07 | 2024-08-27 | 南通普斯勒机械设备有限公司 | Anti-shaking retainer device for automatic carrying trolley and implementation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005308026A (en) * | 2004-04-19 | 2005-11-04 | Nsk Ltd | Combination rolling bearing for axle |
| CN101586603A (en) * | 2008-05-19 | 2009-11-25 | 瓦房店第一轧机轴承制造有限公司 | Four-row cylindrical roller bearing for rolling mill |
| CN103352915A (en) * | 2013-06-28 | 2013-10-16 | 沈阳罕王精密轴承有限公司 | Compact crossed-roller flange bearing |
| JP2015055307A (en) * | 2013-09-12 | 2015-03-23 | Ntn株式会社 | Bearing device for wheel |
| CN205503771U (en) * | 2016-04-21 | 2016-08-24 | 洛阳博普轴承制造有限公司 | Take roller bearing for motor transmission of ball |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3088775A4 (en) * | 2013-12-10 | 2017-11-01 | NSK Ltd. | Seal mechanism, drive device for seal mechanism, transport device, and manufacturing device |
-
2018
- 2018-09-06 CN CN201811035806.9A patent/CN108825648B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005308026A (en) * | 2004-04-19 | 2005-11-04 | Nsk Ltd | Combination rolling bearing for axle |
| CN101586603A (en) * | 2008-05-19 | 2009-11-25 | 瓦房店第一轧机轴承制造有限公司 | Four-row cylindrical roller bearing for rolling mill |
| CN103352915A (en) * | 2013-06-28 | 2013-10-16 | 沈阳罕王精密轴承有限公司 | Compact crossed-roller flange bearing |
| JP2015055307A (en) * | 2013-09-12 | 2015-03-23 | Ntn株式会社 | Bearing device for wheel |
| CN205503771U (en) * | 2016-04-21 | 2016-08-24 | 洛阳博普轴承制造有限公司 | Take roller bearing for motor transmission of ball |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108825648A (en) | 2018-11-16 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20230816 Address after: 400800 Beidu Aluminum Industrial Park, Gunan Street Industrial Park, Qijiang District, Chongqing Applicant after: Chongqing haste aluminum strip Co.,Ltd. Address before: 403-61, 4th Floor, Building 1, Yinkun Science and Technology Park, No. 6 Gaoxin Fenghua Road, Luoyang Area, China (Henan) Free Trade Pilot Zone, Luoyang City, Henan Province, 471000 Applicant before: LUOYANG ZHIDUOXIN MACHINERY TECHNOLOGY Co.,Ltd. |
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