CN211202606U - Double-row four-point contact rolling bearing - Google Patents
Double-row four-point contact rolling bearing Download PDFInfo
- Publication number
- CN211202606U CN211202606U CN201921628461.8U CN201921628461U CN211202606U CN 211202606 U CN211202606 U CN 211202606U CN 201921628461 U CN201921628461 U CN 201921628461U CN 211202606 U CN211202606 U CN 211202606U
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- steel ball
- rolling bearing
- fixing groove
- ring
- point contact
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Abstract
The utility model discloses a double-row four-point contact antifriction bearing, including antifriction bearing outer lane and antifriction bearing inner circle, the inside of antifriction bearing outer lane is equipped with two outer lane steel ball grooves, the outside of antifriction bearing inner circle is equipped with two inner circle steel ball grooves, inner circle steel ball groove and outer lane steel ball groove correspond the setting respectively, for forming two raceways between two inner circle steel ball grooves and two outer lane steel ball grooves, be equipped with first steel ball and second steel ball in two raceways respectively, there is lubricating grease at the raceway surface formation lubricating oil film between raceway and the steel ball, be equipped with the holder between antifriction bearing inner circle and the antifriction bearing outer lane, two inner circle steel ball grooves and two outer lane steel ball grooves lie in and be two point butt joints between same one side and first steel ball and the second steel ball, two raceways respectively with be four-point butt joints between first steel ball and the second steel. Make can not produce the friction between the steel ball, greatly increased the life of bearing, make installation and debugging convenient moreover, be applicable to conventional load, rotation accuracy is high.
Description
Technical Field
The utility model relates to a bearing technical field, in particular to double-row four-point contact antifriction bearing.
Background
The conventional structure of the traditional roller bearing is a full roller pin structure formed by combining a thick outer ring roller pin bearing and a bolt, a lubricating oil channel is arranged in the bolt of the bearing, and the full roller pin structure and the requirement of external lubricating grease are filled, so that the traditional roller bearing is suitable for some working conditions with low requirements on rotation precision, low requirements on rotating speed and heavy load, and the problems of leakage of some internal lubricating grease, invasion of external pollutants, troublesome maintenance and the like also frequently occur in the using process.
Patent number CN 208519054U among the prior art discloses a biserial four point contact gyro wheel bearing, including gyro wheel bearing outer lane, gyro wheel bearing inner circle and steel ball, the steel ball is located in the raceway between gyro wheel bearing outer lane and the gyro wheel bearing inner circle, has lubricating grease to form the lubricating oil film on the raceway surface between raceway and the steel ball, the holder has been installed in the outside of steel ball, the outside of holder is equipped with the sealing washer, the raceway has two, by the same arc recess combination of shape that corresponds forms on gyro wheel bearing outer lane and the gyro wheel bearing inner circle, the recess with the steel ball is two point contact, the raceway with the steel ball is four point contact. The utility model discloses structural design is novel, and installation adjustment is convenient, uses non-maintaining, can bear the moment that comes from each direction, has improved bearing life.
The limit of the steel balls is lacked in the prior art, so that friction is easily generated between the steel balls in the using process of the bearing, the jamming of the inner ring and the outer ring of the bearing and the friction between the steel balls are easily caused, and the service life of the bearing is greatly shortened.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two-row four-point contact antifriction bearing to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a double-row four-point contact rolling bearing comprises a rolling bearing outer ring and a rolling bearing inner ring, two outer ring steel ball grooves are arranged inside the rolling bearing outer ring, two inner ring steel ball grooves are arranged outside the inner ring of the rolling bearing, the inner ring steel ball grooves and the outer ring steel ball grooves are respectively and correspondingly arranged, two raceways are formed between the two inner ring steel ball grooves and the two outer ring steel ball grooves, first steel balls and second steel balls are respectively arranged in the two raceways, lubricating grease is arranged between the raceways and the steel balls to form a lubricating oil film on the surfaces of the raceways, the rolling bearing is characterized in that a retainer is arranged between the inner ring of the rolling bearing and the outer ring of the rolling bearing, the two inner ring steel ball grooves and the two outer ring steel ball grooves are positioned on the same side and are in two-point butt joint with the first steel balls and the second steel balls, and the two rolling paths are in four-point butt joint with the first steel balls and the second steel balls respectively.
Further, the lubricating grease adopts molybdenum disulfide.
Furthermore, the retainer comprises a first fixing column and a second fixing column which are arranged at two ends of the retainer, and a first steel ball limiting ring and a second steel ball limiting ring which are sleeved outside the first steel ball and the second steel ball, wherein a first fixing groove and a second fixing groove are arranged on the inner side of the outer ring of the rolling bearing, a third fixing groove and a fourth fixing groove are arranged on the outer side of the inner ring of the rolling bearing, the first fixing column is arranged between the first fixing groove and the third fixing groove and is in sliding connection with the first fixing groove and the third fixing groove, and the second fixing column is arranged between the second fixing groove and the fourth fixing groove and is in sliding connection with the second fixing groove and the fourth fixing groove.
Further, the first sealing gasket is sleeved on the first fixing column, and the second sealing gasket is sleeved on the second fixing column.
Furthermore, the inner diameter of the first steel ball limiting ring is larger than the diameter of the first steel ball, the first steel ball is in sliding connection with the first steel ball limiting ring, the inner diameter of the second steel ball limiting ring is larger than the diameter of the second steel ball, and the second steel ball is in sliding connection with the second steel ball limiting ring.
Furthermore, the surface of the outer ring of the rolling bearing is of a spherical structure, and the radius of the outer ring is R254 mm-R508 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a set up the effectual problem of having solved lubricating oil leakage of sealed pad, set up the spacing collar on the steel ball moreover for can not produce the friction between the steel ball, greatly increased the life of bearing, make installation and debugging convenient moreover, be applicable to conventional load, rotation accuracy is high.
Drawings
Fig. 1 is a cross-sectional view of a two-row four-point contact rolling bearing according to the present invention;
FIG. 2 is a cross-sectional view of a raceway and a steel ball of a double-row four-point contact rolling bearing of the present invention;
fig. 3 is a schematic view of a retainer of a double-row four-point contact rolling bearing according to the present invention.
The reference numerals are explained below:
in the figure: an outer ring of a rolling bearing; 11. a first fixing groove; 12. a second fixing groove; 2. an inner ring of a rolling bearing; 21. a third fixing groove; 22. a fourth fixing groove; 3. a first steel ball; 4. a second steel ball; 5. a first steel ball limiting ring; 6. a second steel ball limiting ring; 7. a first fixed column; 71. a first seal ring; 8. a second fixed column; 81. a second seal ring; 9. an outer ring steel ball groove; 10. an inner ring steel ball groove; 13. a holder; 14. a raceway.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
a double-row four-point contact rolling bearing comprises a rolling bearing outer ring 1 and a rolling bearing inner ring 2, two outer ring steel ball grooves 9 are arranged inside the outer ring 1 of the rolling bearing, two inner ring steel ball grooves 10 are arranged outside the inner ring 2 of the rolling bearing, the inner ring steel ball grooves 10 and the outer ring steel ball grooves 9 are respectively and correspondingly arranged, two roller paths 14 are formed between the two inner ring steel ball grooves 10 and the two outer ring steel ball grooves 9, first steel balls 3 and second steel balls 4 are respectively arranged in the two roller paths 14, lubricating grease is arranged between the roller paths 14 and the steel balls to form a lubricating oil film on the surfaces of the roller paths 14, a retainer 13 is arranged between the rolling bearing inner ring 2 and the rolling bearing outer ring 1, the two inner ring steel ball grooves 10 and the two outer ring steel ball grooves 9 are positioned on the same side and are in two-point butt joint with the first steel balls 3 and the second steel balls 4, and the two rolling paths 14 are in four-point butt joint with the first steel balls 3 and the second steel balls 4 respectively.
In order to further improve the use function of the double-row four-point contact rolling bearing, molybdenum disulfide is adopted in the lubricating grease.
In order to further improve the service function of the double-row four-point contact rolling bearing, the retainer 13 comprises a first fixing column 7 and a second fixing column 8 which are arranged at two ends of the retainer 13, and a first steel ball limiting ring 5 and a second steel ball limiting ring 6 which are sleeved outside a first steel ball 3 and a second steel ball 4, a first fixing groove 11 and a second fixing groove 12 are arranged on the inner side of the outer ring 1 of the rolling bearing, a third fixing groove 21 and a fourth fixing groove 22 are arranged on the outer side of the inner ring 2 of the rolling bearing, the first fixing column 7 is arranged between the first fixing groove 11 and the third fixing groove 21 and is in sliding connection with the first fixing groove 11 and the third fixing groove 21, and the second fixing column 8 is arranged between the second fixing groove 12 and the fourth fixing groove 22 and is in sliding connection with the second fixing groove 12 and the fourth fixing groove 22.
In order to further improve the use function of the double-row four-point contact rolling bearing, a first sealing gasket 71 is sleeved on the first fixing column 7, and a second sealing gasket 81 is sleeved on the second fixing column 8.
In order to further improve the service function of the double-row four-point contact rolling bearing, the inner diameter of the first steel ball limiting ring 5 is larger than the diameter of the first steel ball 3, the first steel ball 3 is in sliding connection with the first steel ball limiting ring 5, the inner diameter of the second steel ball limiting ring 6 is larger than the diameter of the second steel ball 4, and the second steel ball 4 is in sliding connection with the second steel ball limiting ring 6.
In order to further improve the use function of the double-row four-point contact rolling bearing, the surface of the outer ring 1 of the rolling bearing is of a spherical structure, and the radius of the outer ring is R254 mm-R508 mm.
The working principle is as follows:
the utility model discloses a set up the effectual problem of having solved lubricating oil leakage of sealed pad, set up the spacing collar on the steel ball moreover for can not produce the friction between the steel ball, greatly increased the life of bearing, make installation and debugging convenient moreover, be applicable to conventional load, rotation accuracy is high.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a two-row four-point contact antifriction bearing, includes antifriction bearing outer lane (1) and antifriction bearing inner circle (2), its characterized in that: the inner part of the rolling bearing outer ring (1) is provided with two outer ring steel ball grooves (9), the outer part of the rolling bearing inner ring (2) is provided with two inner ring steel ball grooves (10), the inner ring steel ball grooves (10) and the outer ring steel ball grooves (9) are respectively and correspondingly arranged, two inner ring steel ball grooves (10) and two outer ring steel ball grooves (9) form two raceways (14), the two raceways (14) are respectively provided with a first steel ball (3) and a second steel ball (4), lubricating grease is arranged between the raceways (14) and the steel balls to form a lubricating oil film on the surface of the raceways (14), a retainer (13) is arranged between the rolling bearing inner ring (2) and the rolling bearing outer ring (1), the two inner ring steel ball grooves (10) and the two outer ring steel ball grooves (9) are positioned on the same side and are in butt joint with the first steel ball (3) and the second steel ball (4), the two roller paths (14) are in four-point butt joint with the first steel ball (3) and the second steel ball (4) respectively.
2. The double-row four-point contact rolling bearing according to claim 1, characterized in that: the lubricating grease adopts molybdenum disulfide.
3. The double-row four-point contact rolling bearing according to claim 1, characterized in that: the retainer (13) comprises a first fixing column (7) and a second fixing column (8) which are arranged at two ends of the retainer (13), and a first steel ball limiting ring (5) and a second steel ball limiting ring (6) which are sleeved outside the first steel ball (3) and the second steel ball (4), a first fixing groove (11) and a second fixing groove (12) are arranged on the inner side of the outer ring (1) of the rolling bearing, a third fixing groove (21) and a fourth fixing groove (22) are arranged on the outer side of the rolling bearing inner ring (2), the first fixing column (7) is arranged between the first fixing groove (11) and the third fixing groove (21) and is connected with the first fixing groove (11) and the third fixing groove (21) in a sliding mode, the second fixing column (8) is arranged between the second fixing groove (12) and the fourth fixing groove (22) and is in sliding connection with the second fixing groove (12) and the fourth fixing groove (22).
4. A double row four point contact rolling bearing according to claim 3, characterized in that: a first sealing gasket (71) is sleeved on the first fixing column (7), and a second sealing gasket (81) is sleeved on the second fixing column (8).
5. A double row four point contact rolling bearing according to claim 3, characterized in that: the inner diameter of the first steel ball limiting ring (5) is larger than the diameter of the first steel ball (3), the first steel ball (3) is in sliding connection with the first steel ball limiting ring (5), and the inner diameter of the second steel ball limiting ring (6) is larger than the diameter of the second steel ball (4), and the second steel ball (4) is in sliding connection with the second steel ball limiting ring (6).
6. The double-row four-point contact rolling bearing according to claim 1, characterized in that: the surface of the rolling bearing outer ring (1) is of a spherical structure, and the radius of the rolling bearing outer ring is R254 mm-R508 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921628461.8U CN211202606U (en) | 2019-09-27 | 2019-09-27 | Double-row four-point contact rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921628461.8U CN211202606U (en) | 2019-09-27 | 2019-09-27 | Double-row four-point contact rolling bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211202606U true CN211202606U (en) | 2020-08-07 |
Family
ID=71883002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921628461.8U Expired - Fee Related CN211202606U (en) | 2019-09-27 | 2019-09-27 | Double-row four-point contact rolling bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211202606U (en) |
-
2019
- 2019-09-27 CN CN201921628461.8U patent/CN211202606U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200807 Termination date: 20210927 |
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| CF01 | Termination of patent right due to non-payment of annual fee |