CN101705968A - Rolling bearing - Google Patents
Rolling bearing Download PDFInfo
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- CN101705968A CN101705968A CN200910186591A CN200910186591A CN101705968A CN 101705968 A CN101705968 A CN 101705968A CN 200910186591 A CN200910186591 A CN 200910186591A CN 200910186591 A CN200910186591 A CN 200910186591A CN 101705968 A CN101705968 A CN 101705968A
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- cylindrical roller
- rolling bearing
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Abstract
The invention relates to a rolling bearing which comprises a bearing inner race, a bearing outer race and a rolling body, wherein the rolling body is sandwiched between the bearing inner race and the bearing outer race; the rolling body comprises a plurality of cylindrical rollers and a plurality of spherical rollers; the cylindrical rollers and the spherical rollers are alternately arranged along the same circumference; a retainer is arranged between each cylindrical roller and each spherical roller which are adjacent; the axial lead of each cylindrical roller is parallel with that of the bearing; the diameter of each spherical roller is smaller than that of the cylindrical roller; and the diameter of the spherical roller is greater than the height of the cylindrical roller. The cylindrical rollers of the invention have the function of radial support, and the spherical rollers have the function of axial support.
Description
Technical field
The present invention relates to a kind of rolling bearing.
Background technique
Common radial-axial block bearing has two kinds: a kind of is angular contact ball bearing, for reduced volume can change it into nonstandard thin-wall bearing, as want cube littler, and then can remove the inner ring of angular contact ball bearing, directly roller-way is done on the outer wall of the axle that is supported.But by the transformation of said structure, bearing has become nonstandard bearing, and not only manufacture difficulty is big, and it is also inconvenient to damage the back maintenance.
The another kind of radially structure of an axially mounting bearing is: one encloses the cylindrical roller of circle distribution vertically (cylindrical roller circumferentially, the shaft axis of roller along the bearing axis direction), encloses the cylindrical roller of circle distribution radially (cylindrical roller circumferentially, the shaft axis of roller along bearing radially), above cylindrical roller is positioned on the same circumference, and the space distributes, and is provided with retainer between the adjacent cylindrical roller.The little about 0.1～0.2mm of the aspect ratio diameter of cylindrical roller, so the cylindrical roller of circle distribution only plays the effect of radial support vertically, and radially the cylindrical roller that distributes of circumferencial direction plays axially mounting.Radially the cylindrical roller of circle distribution is if the extraordinary cylindrical roller of cylindricity, and the problem of bringing so is that the linear velocity of roller two ends when turning round around the axle center is different, and roller can produce friction with duct ring from the near-end in axle center during rotation.During the roller rotation will be rolling+sliding zone gyration, the rolling+cyclic process of sliding zone gyration more again.Though some the radial-axial block bearing radially cylindrical roller of circle distribution is designed to cydariform, roller is middle more bigger than two ends, reduces the sliding process of roller as far as possible, and it can't avoid sliding.
Summary of the invention
Fricton-tight and rolling bearing that can miniaturization when the purpose of this invention is to provide a kind of the rotation.
The technical solution used in the present invention is: a kind of rolling bearing, comprise bearing inner race, bearing outer ring and being clipped in this bearing, rolling element between the outer ring, described rolling element comprises a plurality of cylindrical rollers and a plurality of spherical roller, described cylindrical roller and spherical roller along same circumference every arrangement, and be provided with retainer between adjacent described cylindrical roller and the spherical roller, the shaft axis of described cylindrical roller parallels with the shaft axis of bearing, the diameter of described spherical roller is less than the diameter of described cylindrical roller, and the diameter of described spherical roller is greater than the height of described cylindrical roller.
Preferably, the difference of the height of the diameter of the difference of the diameter of the diameter of described spherical roller and described cylindrical roller and described spherical roller and described cylindrical roller is no more than 0.1mm.
Preferably, the material of described cylindrical roller and described spherical roller is steel or pottery, and the material of described retainer is plastics.
Preferably, the structure of described retainer is that an end is a cylindrical concave, and the other end is cylindrical concave or spherical concave surface.
Preferably, described bearing outer ring and described bearing inner race are L-shaped.
Preferably, described bearing outer ring can be wholely set with the inwall in the hole of being supported, and described bearing inner race can be wholely set with the outer wall of the axle that is supported, to reduce the volume of this rolling bearing.
By implementing above technological scheme, the present invention obtains following progress: the cylindrical roller on the rolling bearing plays the radial support effect, spherical roller plays the axially mounting effect, sliding problem in the time of can thoroughly solving the roller rotation has improved bearing accuracy, has prolonged bearing working life. and the bearing of this structure, especially for the rolling bearing of miniaturization, because each parts are standard piece, be easy to make and maintenance, saved manufacturing cost and use cost.
Description of drawings
Accompanying drawing 1 is the structural drawing of rolling bearing of the present invention;
Accompanying drawing 2 is the structural drawing of the rolling element of rolling bearing of the present invention;
Accompanying drawing 3 is the structural drawing of the retainer of rolling bearing of the present invention;
Accompanying drawing 4 is an application example of the present invention.
Wherein: 1, cylindrical roller; 2, spherical roller; 3, retainer; 4, bearing outer ring; 5, bearing inner race; 6, cycloidal planetary gear speed reducer; 7, input shaft; 8, gear; 9, bent axle; 10, cycloid disc; 11, needle roller; 12, pin wheel housing; 13, gland; 14, output disc; 15, rolling bearing; 16, rolling bearing.
Embodiment
Further set forth concrete structure of the present invention below in conjunction with accompanying drawing.
Referring to accompanying drawing 1, shown in the accompanying drawing 2, a kind of rolling bearing, comprise bearing inner race 5, bearing outer ring 4 and being clipped in this bearing, rolling element between the outer ring 5 and 4, it is characterized in that: described rolling element comprises a plurality of cylindrical rollers 1 and a plurality of spherical roller 2, described cylindrical roller 1 and spherical roller 2 along same circumference every arrangement, and be provided with retainer 3 between adjacent cylindrical roller 1 and the spherical roller 2, the shaft axis of described cylindrical roller 1 parallels with the shaft axis of bearing, the diameter of described spherical roller 2 is less than the diameter of described cylindrical roller 1, and the diameter of described spherical roller 2 is greater than the height of described cylindrical roller 1.
The difference of the height of the diameter of the difference of the diameter of the diameter of described spherical roller 2 and described cylindrical roller 1 and described spherical roller 2 and described cylindrical roller 1 is no more than 0.1mm.
Described cylindrical roller 1 and described spherical roller 2 materials are steel or pottery, and the material of described retainer 3 is plastics.
As shown in Figure 3, the structure of described retainer 3 is that an end is a cylindrical concave, and the other end is cylindrical concave or spherical concave surface.
Described bearing outer ring 4 and bearing inner race 5 are L-shaped.
Described bearing outer ring 4 can be wholely set with the inwall in the hole of being supported, and described bearing inner race 5 can be wholely set with the outer wall of the axle that is supported, to reduce the volume of this rolling bearing.
Because the cylindrical roller that radial circumference is distributed has changed spherical roller 2 into, has avoided the problem of roller slip, has improved bearing accuracy, prolonged bearing working life.
Use the example that this rolling bearing obtains beneficial effect to enumerate one below:
Be illustrated in figure 4 as a kind of cycloidal planetary gear speed reducer 6, the main structure of this cycloidal planetary gear speed reducer 6 is: input shaft 7 links to each other with motor, the end of input shaft 7 has a circle tooth-shape structure, gear 8 fixing on profile of tooth on the input shaft 7 and the bent axle 9 meshes, bent axle 9 two ends are bearing in respectively on gland 13 and the output disc 14, two eccentric parts are arranged on the bent axle 9, two eccentric part positions are 180 ° and distribute relatively, two eccentric parts are contained in respectively in the hole on the cycloid disc 10, cycloid disc 10 is meshed by teeth on its circumference and the needle roller 11 that is fixed on the pin wheel housing 12, cycloid disc 9 is by screw and gland 13, output disc 14 connects, gyroscopic output together, support with rolling bearing 15 between gland 13 and the pin wheel housing 12, supporting with rolling bearing 16 between output disc 14 and the pin wheel housing 12. input shaft 7 drives bent axles 9 rotations by gear 8, bent axle 9 provides power for cycloid disc 10, make cycloid disc 10 by with the engagement of needle roller 11 inner circumference rotation along pin wheel housing, pass motion to output disc 14.
The rolling bearing 15 and 16 that uses on this cycloidal planetary gear speed reducer 6 wherein has at least one to adopt rolling bearing of the present invention, can obtain better effect.As shown in Figure 4, rolling bearing 15 and 16 bearing inner race 5 can be wholely set respectively at gland 13, output disc 14, make that the volume of speed reducer is compact more, and the speed reducer of miniaturization can better be achieved more; Cylindrical roller 1 on the rolling bearing 15 and 16 plays the radial support effect, and spherical roller 2 plays the axially mounting effect, and speed reducer 6 sliding problem can not occur when rotated, has improved running accuracy, has also prolonged bearing working life.And the rolling bearing of this structure is easy to make and maintenance because each parts are standard piece, saved manufacturing cost and use cost.
The foregoing description only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage that is familiar with this technology can understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; all equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (11)
1. rolling bearing, comprise bearing inner race (5), bearing outer ring (4) and being clipped in this bearing, rolling element between the outer ring, it is characterized in that: described rolling element comprises a plurality of cylindrical rollers (1) and a plurality of spherical roller (2), described cylindrical roller (1) and spherical roller (2) along same circumference every arrangement, and be provided with retainer (3) between adjacent described cylindrical roller (1) and the spherical roller (2), the shaft axis of described cylindrical roller (1) parallels with the shaft axis of bearing, the diameter of described spherical roller (2) is less than the diameter of described cylindrical roller (1), and the diameter of described spherical roller (2) is greater than the height of described cylindrical roller (1).
2. rolling bearing according to claim 1 is characterized in that: the difference of the diameter of the diameter of described spherical roller (2) and described cylindrical roller (1) is no more than 0.1mm.
3. rolling bearing according to claim 1 is characterized in that: the difference of the height of the diameter of described spherical roller (2) and described cylindrical roller (1) is no more than 0.1mm.
4. rolling bearing according to claim 1 is characterized in that: described cylindrical roller (1) material is steel or pottery.
5. rolling bearing according to claim 1 is characterized in that: the material of described spherical roller (2) is steel or pottery.
6. rolling bearing according to claim 1 is characterized in that: the material of described retainer (3) is plastics.
7. rolling bearing according to claim 1 is characterized in that: the structure of described retainer (3) is that an end is a cylindrical concave, and the other end is cylindrical concave or spherical concave surface.
8. rolling bearing according to claim 1 is characterized in that: described bearing outer ring (4) is L-shaped.
9. according to claim 1 or 8 described rolling bearings, it is characterized in that: described bearing outer ring (4) is wholely set with the inwall in the hole of being supported.
10. rolling bearing according to claim 1 is characterized in that: described bearing inner race (5) is L-shaped.
11. according to claim 1 or 9 described rolling bearings, it is characterized in that: described bearing inner race (5) is wholely set with the outer wall of the axle that is supported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910186591A CN101705968A (en) | 2009-11-27 | 2009-11-27 | Rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910186591A CN101705968A (en) | 2009-11-27 | 2009-11-27 | Rolling bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101705968A true CN101705968A (en) | 2010-05-12 |
Family
ID=42376213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910186591A Pending CN101705968A (en) | 2009-11-27 | 2009-11-27 | Rolling bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101705968A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562794A (en) * | 2012-02-23 | 2012-07-11 | 威海利奥泰儆自动化设备有限公司 | Wire raceway bearing and manufacturing method thereof |
| CN103104598A (en) * | 2012-12-21 | 2013-05-15 | 安徽枞晨回转支承有限公司 | Double-raceway yaw bearing of large wind turbine unit |
| CN103256301A (en) * | 2012-02-20 | 2013-08-21 | 梁振春 | Rolling bearing with rolling shaft |
| CN103352916A (en) * | 2013-06-28 | 2013-10-16 | 沈阳罕王精密轴承有限公司 | Crossed roller bearing with cylindrical rollers and steel-ball rollers distributed crisscross |
| 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 |
| CN105134775A (en) * | 2015-10-12 | 2015-12-09 | 山东凯美瑞轴承科技有限公司 | Hybrid bearing with center regulating function |
| CN107035821A (en) * | 2017-05-27 | 2017-08-11 | 海尚集团有限公司 | Reductor cyclo drive mechanism based on ellipsoid ball |
-
2009
- 2009-11-27 CN CN200910186591A patent/CN101705968A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256301A (en) * | 2012-02-20 | 2013-08-21 | 梁振春 | Rolling bearing with rolling shaft |
| CN102562794A (en) * | 2012-02-23 | 2012-07-11 | 威海利奥泰儆自动化设备有限公司 | Wire raceway bearing and manufacturing method thereof |
| CN103104598A (en) * | 2012-12-21 | 2013-05-15 | 安徽枞晨回转支承有限公司 | Double-raceway yaw bearing of large wind turbine unit |
| CN103352916A (en) * | 2013-06-28 | 2013-10-16 | 沈阳罕王精密轴承有限公司 | Crossed roller bearing with cylindrical rollers and steel-ball rollers distributed crisscross |
| 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 |
| CN103352915B (en) * | 2013-06-28 | 2015-08-05 | 沈阳罕王精密轴承有限公司 | A kind of compact type crossed roller flange bearing |
| CN105134775A (en) * | 2015-10-12 | 2015-12-09 | 山东凯美瑞轴承科技有限公司 | Hybrid bearing with center regulating function |
| CN107035821A (en) * | 2017-05-27 | 2017-08-11 | 海尚集团有限公司 | Reductor cyclo drive mechanism based on ellipsoid ball |
| CN107035821B (en) * | 2017-05-27 | 2023-08-01 | 海尚集团有限公司 | Cycloid transmission mechanism of speed reducer based on ellipsoidal balls |
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Owner name: KUNSHAN GUANGTENG INTELLIGENT MACHINERY CO., LTD. Free format text: FORMER OWNER: KUNSHAN HUAHENG MACHINERY MANUFACTURING CO., LTD. Effective date: 20110317 |
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Effective date of registration: 20110317 Address after: 215300 Jiangsu city of Kunshan province Xiong Zhuang Road No. 25 Applicant after: KUNSHAN GUANGTENG INTELLIGENT MACHINERY CO., LTD. Address before: Wusongjiang Road Development Zone in Kunshan City, Jiangsu Province, No. 99 215301 Applicant before: Kunshan Huaheng Machinery Manufacturing Co., Ltd. |
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Open date: 20100512 |