CN219755097U - Miniature deep groove ball damping bearing - Google Patents
Miniature deep groove ball damping bearing Download PDFInfo
- Publication number
- CN219755097U CN219755097U CN202321070657.6U CN202321070657U CN219755097U CN 219755097 U CN219755097 U CN 219755097U CN 202321070657 U CN202321070657 U CN 202321070657U CN 219755097 U CN219755097 U CN 219755097U
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- CN
- China
- Prior art keywords
- bearing
- damping
- retainer
- sealing
- inner ring
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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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- 238000013016 damping Methods 0.000 title claims abstract description 48
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 7
- 230000005489 elastic deformation Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model provides a miniature deep groove ball damping bearing, includes outer lane, inner circle and sets up the raceway between outer lane and inner circle, its characterized in that: the inner side of the roller path is provided with a retainer with rollers, sealing elements and damping elements, wherein the sealing elements and the damping elements are arranged on two sides of the roller path and used for sealing the roller path, and the damping elements are connected to the outer ring or the inner ring and are abutted between the sealing elements and the retainer. The beneficial effects of the utility model are as follows: the bearing can be suitable for two bearing working states of outer ring rotation, inner ring immobilization and outer ring immobilization, and the inner ring rotation, so that the scheme has higher adaptability; the damping piece abutted against the retainer is additionally arranged in the bearing, so that no adjustment is needed to be made to the existing bearing structure, the structure is simpler, and meanwhile, the resistance is increased for the retainer; meanwhile, the structure that the damping piece is always abutted against the retainer is designed in the bearing according to the existing bearing structure so as to ensure that the damping provided by the scheme cannot be changed when the scheme works.
Description
Technical Field
The utility model relates to a bearing, in particular to a miniature deep groove ball damping bearing.
Background
The deep groove ball bearing is the most representative rolling bearing, has the advantages of simple structure, convenient use, no need of frequent maintenance and the like, and is widely applied. In some special applications it is desirable to use deep groove ball bearings with damping to ensure consistency of rotation or to prevent rotation of the bearing inner or outer race. The prior deep groove ball bearing can only realize the increase of damping by adopting approaches such as smaller bearing clearance or increasing the roughness of a channel. However, there are disadvantages to using the several methods described above: the adoption of smaller bearing clearance can lead to the occurrence of clamping stagnation of the bearing, noise and temperature rise, the early failure of the bearing caused by long-time running, and no great effect on improving the damping of the bearing; increasing the roughness easily causes the bearing to rise in temperature and become noisier, leading to premature failure of the bearing.
In order to solve the problems in the prior art, a deep groove ball bearing with a damper in Chinese patent specification CN204140648U comprises an inner ring, an outer ring, a spacer ring, a retainer, steel balls, magnetorheological fluid, a sealing shaft sleeve and an excitation coil. The inner ring, the outer ring, the sealing shaft sleeve and the isolation ring form a movable sealing chamber, and magnetorheological fluid is sealed in the sealing chamber. The inner ring is symmetrically provided with grooves, the exciting coil is wound in the grooves, and the magnetorheological fluid is isolated from the exciting coil by the isolating ring. The inner ring, the outer ring and the sealing shaft sleeve form another movable sealing chamber, and the steel balls and the retainer are arranged in the sealing chamber.
When the exciting coil is electrified, a magnetic circuit is generated among the inner ring, the outer ring and the magnetorheological fluid, so that the magnetorheological fluid is converted into a high-viscosity low-fluidity guest-to-Chinese fluid from the original Newtonian fluid, and then the inner ring of the bearing continuously performs cutting magnetic field movement to play a role in preventing the movement of the inner ring. However, the prior art has the following disadvantages: by adopting the scheme, the damping is added to the deep groove ball bearing, special processing is needed to be carried out on the outer ring and the inner ring of the bearing so that an exciting coil can be placed between the outer ring and the inner ring, and the miniature deep groove ball bearing cannot be miniaturized and has insufficient bearing empty surface due to the very compact space; and the structure is complex, and the production cost is high.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the miniature deep groove ball damping bearing which can increase damping without modifying the inner ring and the outer ring of the bearing and has simple structure.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: the miniature deep groove ball damping bearing comprises an outer ring, an inner ring and a rollaway nest arranged between the outer ring and the inner ring, wherein a retainer with rollers is arranged in the rollaway nest, sealing elements and damping elements are arranged on two sides of the rollaway nest and used for sealing the rollaway nest, and the damping elements are connected to the outer ring or the inner ring and are abutted between the sealing elements and the retainer.
The beneficial effects of the utility model are as follows: the damping piece abutted against the retainer is additionally arranged in the bearing, so that no adjustment is needed to be made on the existing bearing structure, and the resistance is improved while the structure is simpler; when the bearing adopts a rotation mode that the outer ring rotates and the inner ring does not move, the damping piece is abutted against the inner ring, and when the bearing adopts a rotation mode that the inner ring rotates and the outer ring does not move, the damping piece is abutted against the outer ring, so that the scheme has higher adaptability; meanwhile, the structure that the damping piece is always abutted against the retainer is designed in the bearing according to the existing bearing structure so as to ensure that the damping provided by the scheme cannot be changed when the scheme works.
Further, the damping piece is an elastic ring which is sleeved on the inner ring and elastically abuts against the space between the sealing piece and the retainer.
When the outer ring rotates and the inner ring is motionless during the working state of the bearing, the elastic ring is arranged in the rollaway nest and is propped against the retainer, the inner ring and the sealing element respectively, so that the elastic ring generates certain elastic deformation to realize the addition of damping to the retainer, thereby reducing the rotating speed of the roller.
Further, the outer ring and the inner ring are respectively provided with a first channel and a second channel with arc-shaped sections, and the rollers are arranged in a rollaway nest formed by the first channel and the second channel for axial limiting.
The arc-shaped roller path and the round roller formed by combining the first channel and the second channel also belong to the existing bearing design, and the purpose is that the roller is subjected to axial force to deviate when the bearing works, so that the elastic ring can be abutted against the retainer by adopting the design, and the increased damping can not be changed when the retainer is tightly attached to the roller.
Further, the damping piece is obliquely arranged towards the inner ring direction by the sealing piece and elastically abuts against the retainer.
When the inner ring rotates and the outer ring is motionless during the working state of the bearing, the damping piece is arranged on the sealing piece and is arranged towards the inner ring, and the angle towards the inner ring can be adjusted according to the required damping size, so that the scheme has more adaptability.
Further, the outer ring is provided with a yielding groove, the yielding groove is provided with a positioning wall and a positioning lug, and one end, close to the outer ring, of the sealing element is clamped on the outer ring through the positioning wall and the positioning lug.
The setting cooperation sealing member of groove of stepping down can prevent this scheme and take place the condition that the outer lane runs because of bearing axial force at the during operation, can improve the stability of this scheme during operation. And thereby make the sealing member card establish on the outer lane and form spacingly through the cooperation of locating wall and location lug, thereby and then guarantee that damping piece can not take place axial displacement at this scheme during operation, reach the damping that the damping piece provided for the holder and can not change the effect.
Drawings
FIG. 1 is a cross-sectional view of embodiment 1 of the present utility model;
FIG. 2 is a partial enlarged view of embodiment 1 of the present utility model;
FIG. 3 is a cross-sectional view of embodiment 2 of the present utility model;
fig. 4 is a partial enlarged view at B in embodiment 2 of the present utility model.
Detailed Description
Example 1
The embodiment 1 of the utility model discloses a miniature deep groove ball damping bearing which is suitable for the working state of a bearing with an outer ring rotating and an inner ring not moving, and is shown in figures 1-2: the bearing comprises an outer ring 1, an inner ring 4 and a rollaway nest 2 arranged between the outer ring 1 and the inner ring 4, wherein a retainer 6 for containing rollers 5 is arranged in the rollaway nest 2, an elastic ring 7 which is respectively elastically abutted with a sealing element 3, the inner ring 4 and the retainer 6 is arranged in the rollaway nest 2, the elastic ring 7 is sleeved on the inner ring 1 and generates certain elastic deformation after being arranged on the rollaway nest 2, and then the movement speed of the rollers 5 in the working process of the bearing is reduced.
In order to further ensure that the elastic ring 7 does not separate from the cage 6 when the bearing is in operation, and the contact surfaces of the outer race 1 and the inner race 4 with the rollers 5 are designed to be a first channel 21 and a second channel 22 with arc-shaped cross sections, the rollers 5 can be prevented from moving axially after the rollers 5 are mounted in the raceways 2, and in this embodiment 1, even if there is no play between the cage 5 and the rollers 5, the elastic ring 7 can rebound and abut against the cage 5 due to elastic deformation generated by the elastic ring 7, so that no damping change occurs when the bearing is in operation, and bearing rotation is further stabilized.
Example 2
The embodiment 2 of the utility model relates to a miniature deep groove ball damping bearing which is suitable for the working state of a bearing with an outer ring fixed and an inner ring rotating, and is shown in figures 3-4: comprises an outer ring 1, an inner ring 4 and a rollaway nest 2 arranged between the outer ring 1 and the inner ring 4, wherein a retainer 6 for containing rollers 5 is arranged in the rollaway nest 2. In this embodiment 2, the damper 8 is provided on the seal 3 and is inclined toward the inner ring 2 so that the inclination angle can be selected according to the amount of damping required on the cage 5. Be equipped with on the outer lane 1 and give way the groove 11, be equipped with positioning lug 111 and locating wall 112 in the groove 11 of giving way, the one end that sealing member 3 is close to outer lane 1 forms the card after supporting with positioning lug 111 and locating wall 112 respectively and establishes, consequently sealing member 3 card is established and is not only can prevent that the outer lane from moving because of bearing axial force after giving way the groove 11 to can make damping member 8 can not break away from with holder 6, make at the bearing during operation, can not take place damped change, and then make the bearing rotate more steadily.
The above embodiment is only one of the preferred embodiments of the present utility model, and common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are included in the scope of the present utility model.
Claims (5)
1. The utility model provides a miniature deep groove ball damping bearing, includes outer lane, inner circle and sets up the raceway between outer lane and inner circle, its characterized in that: the inner side of the roller path is provided with a retainer with rollers, sealing elements and damping elements, wherein the sealing elements and the damping elements are arranged on two sides of the roller path and used for sealing the roller path, and the damping elements are connected to the outer ring or the inner ring and are abutted between the sealing elements and the retainer.
2. The miniature deep groove ball damping bearing of claim 1, wherein: the damping piece is an elastic ring which is sleeved on the inner ring and elastically abuts against the space between the sealing piece and the retainer.
3. The miniature deep groove ball damping bearing of claim 2, wherein: the roller is arranged in a roller path formed by the first channel and the second channel for axial limiting.
4. The miniature deep groove ball damping bearing of claim 1, wherein: the damping piece is obliquely arranged towards the inner ring direction by the sealing piece and elastically abuts against the retainer.
5. The miniature deep groove ball damping bearing of claim 4, wherein: the outer ring is provided with a yielding groove, the yielding groove is provided with a positioning wall and a positioning lug, and one end, close to the outer ring, of the sealing element is clamped on the outer ring through the positioning wall and the positioning lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321070657.6U CN219755097U (en) | 2023-05-05 | 2023-05-05 | Miniature deep groove ball damping bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321070657.6U CN219755097U (en) | 2023-05-05 | 2023-05-05 | Miniature deep groove ball damping bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219755097U true CN219755097U (en) | 2023-09-26 |
Family
ID=88087572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321070657.6U Active CN219755097U (en) | 2023-05-05 | 2023-05-05 | Miniature deep groove ball damping bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219755097U (en) |
-
2023
- 2023-05-05 CN CN202321070657.6U patent/CN219755097U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |