CN201925335U - Dedicated four-point contact ball bearing - Google Patents
Dedicated four-point contact ball bearing Download PDFInfo
- Publication number
- CN201925335U CN201925335U CN2010206788951U CN201020678895U CN201925335U CN 201925335 U CN201925335 U CN 201925335U CN 2010206788951 U CN2010206788951 U CN 2010206788951U CN 201020678895 U CN201020678895 U CN 201020678895U CN 201925335 U CN201925335 U CN 201925335U
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- outer rings
- bearing
- point contact
- inner ring
- semi outer
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Abstract
The utility model discloses a dedicated four-point contact ball bearing which comprises a first half outer ring (1), a second half outer ring (2), an inner ring (3), a steel ball (4), a retainer (5), a positioning pin (6) and a bolt (7), wherein the contact angle of the bearing is 45 degrees, the bearing is a negative play, the first half outer ring (1), the second half outer ring (2) and the inner ring (3) are respectively provided with installing holes (10) and (10a), the first half outer ring (1) and the second half outer ring (2) are provided with raceways (9) with the same diameter and curvature, the first half outer ring (1) and the second half outer ring (2) are positioned and connected through the positioning pin (6) and the bolt (7), and the inner ring (3) is provided with raceways (9a) with the same diameter and curvature. The dedicated four-point contact ball bearing has the characteristics that the structure is compact, the weight is light, the rotating speed is high, the lubricant performance is good, the rotating is flexible, the starting friction torque is small, and the running is stable, can simultaneously bear higher axial and radial combined load and greater upsetting moment, and has low manufacture cost and convenient installation. The dedicated four-point contact ball bearing is suitable for vertical and high-speed using working conditions.
Description
Technical field
The utility model relates to the application of bearing technology on large-scale precision equipment, relates generally to the structural type of the special-purpose four-point contact ball of a kind of large-scale precision equipment turntable main shaft.
Background technique
At present, the bearing of a kind of three row's composite structure patterns that adopt on large-scale precision equipment turntable main shaft mainly is made up of an outer ring, two inner rings, two groups of retainers, roller assembly and row rollers.This bearing mainly bears radial load, axial load and tilting moment, has characteristics such as good rigidity, running accuracy height.But this airframe bearing is not suitable for high rotating speed (40 rev/mins), and the vertical operating mode of using.
Summary of the invention
The purpose of this utility model provides a kind of special-purpose four-point contact ball, this bearing has compact structure, rotating speed height, rotation flexible characteristic, can bear higher axial and joint load radially simultaneously, and bigger tilting moment, applying working condition vertical, at a high speed be applicable to.
The purpose of this utility model can adopt following technological scheme to realize: it mainly comprises first semi outer rings, second semi outer rings, inner ring, steel ball, retainer, locating stud, bolt, and described bearing contact angle is 45 °; Bearing is negative play; Be respectively arranged with mounting hole on two semi outer rings and the inner ring, first semi outer rings is relative to second semi outer rings locating stud and bolt; First semi outer rings and second semi outer rings are provided with diameter, raceway that curvature is identical; Described inner ring is provided with diameter, raceway that curvature is identical; Described retainer is the integral cage of inner ring rib guidance mode, and the pocket hole is cylindrical structure.
Raceway on described first semi outer rings and second semi outer rings is the peach shape groove structure form that 0.535 times of rolling element diameter is formed by two radius of curvature;
Described inner ring raceway is the peach shape groove structure form that 0.525 times of rolling element diameter is formed by two radius of curvature.
By last structure as can be seen, bearing contact angle α, the α 1 of the utility model design are 45 °, the design of this angle be for make bearing can bear simultaneously higher axially and joint load radially, and bigger tilting moment; Bearing adopts negative play, and good rigidly can improve the load bearing capacity of bearing, and the employing of negative play also can make bearing operation steady.
Two semi outer rings have diameter, raceway that curvature is identical, raceway is the structural type of forming peach shape ditch of 0.535 times of rolling element diameter by two radius of curvature R, this structure Design can improve the bearing capacity of bearing, can adapt to the requirement of high rotating speed applying working condition simultaneously again; After two semi outer rings are located with locating stud, use Bolt Connection, this design had both made things convenient for the processing of part and the assembling of bearing, had solved the sequence of sanqu songs within a particular musical mode problem of bearing when transportation, installation simultaneously again; Two semi outer rings have the mounting hole of combination processing, when the large end face direction design of semi outer rings mounting hole has counterbore, this design can satisfy bearing to install with pedestal, bolt head not with the requirement of other part interference.
Inner ring is provided with diameter, raceway that curvature is identical, raceway is the structural type of forming peach shape ditch of 0.525 times of rolling element diameter by two radius of curvature R 1, this structure Design can improve the bearing capacity of bearing, can adapt to the requirement of high rotating speed applying working condition simultaneously again; Have the mounting hole of counterbore on the inner ring and can make things convenient for connecting of bolt, and do not interfere with other part with hole on the small gear.
Retainer is an integral cage, adopts the mode of inner ring rib guiding, rotates requirement flexibly to guarantee bearing, and the pocket hole of retainer is designed to cylindrical structural type, makes things convenient for packing into of steel ball when bearing assembles, and makes the running of bearing more steady.
In sum, the utlity model has compact structure, in light weight, rotating speed is high, greasy property good, rotation is flexible, starting friction moment is little, characteristics stably turn round, can bear higher axial and joint load radially simultaneously, and bigger tilting moment, and it is cheap for manufacturing cost, easy for installation.Be applicable to applying working condition vertical, at a high speed.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 2 is the locating stud schematic representation.
Accompanying drawing 3 is the semi outer rings structural representation.
Accompanying drawing 4 is the second semi outer rings structural representation.
Accompanying drawing 5 is two semi outer rings raceway schematic representation.
Accompanying drawing 6 is the inner ring structural representation.
Accompanying drawing 7 is the inner ring raceway schematic representation.
Accompanying drawing 8 is the retainer structural representation.
Accompanying drawing 9 is the A-A sectional view of Fig. 8.
Among the figure: 1, first semi outer rings, 2, second semi outer rings, 3, inner ring, 4, steel ball, 5, retainer, 6, locating stud, 7, bolt, 8,8a, end face, 9,9a, raceway, 10,10a, mounting hole, 11, positioning hole, 12, rib, 13,13 a, counterbore, 14, the pocket hole, 15, connecting hole.
Embodiment
In conjunction with the accompanying drawings, specific embodiment of the utility model is described.
As accompanying drawing 1, shown in Figure 2: its part of the utility model bearing comprises: first semi outer rings 1, second semi outer rings 2, inner ring 3, steel ball 4, retainer 5, locating stud 6 and bolt 7.
The wrapping angle α of bearing, α 1 are designed to 45 °, the design of this angle be for make bearing can bear simultaneously higher axially and joint load radially, and bigger tilting moment; Bearing adopts negative play, and good rigidly can improve the load bearing capacity of bearing, prolongs the working life of bearing, and the employing of negative play simultaneously also can make the smoothness of operation of bearing good.
As accompanying drawing 3, shown in Figure 5: first semi outer rings 1 is provided with raceway 9, the radius of curvature R of raceway 9 is the structural type of the composition peach shape ditch of 0.535 times of rolling element diameter, this structure Design can improve the bearing capacity of bearing, can adapt to the requirement of high rotating speed applying working condition simultaneously again; First semi outer rings 1 is evenly distributed in mounting hole 10, when the design of large end face 8 directions of first semi outer rings, 1 mounting hole 10 has counterbore 13, this design can satisfy bearing to install with pedestal, bolt head not with the requirement of other part interference; The scyewed joint hole 15 that symmetrical positioning hole 11 is arranged on first semi outer rings 1 and play anastomosis, this design had both made things convenient for the processing of part and the assembling of bearing, had solved the sequence of sanqu songs within a particular musical mode problem of bearing when transportation, installation simultaneously again.
As accompanying drawing 4, shown in Figure 5: second semi outer rings 2 is provided with raceway 9, the radius of curvature R of raceway 9 is the structural type of the composition peach shape ditch of 0.535 times of rolling element diameter, this structure Design can improve the bearing capacity of bearing, can adapt to the requirement of high rotating speed applying working condition simultaneously again; Second semi outer rings 2 is evenly distributed in mounting hole 10, connects requirement when this design can be satisfied bearing and installs with pedestal; The scyewed joint hole 15 that symmetrical positioning hole 11 is arranged on second semi outer rings 2 and play anastomosis, this design had both made things convenient for the processing of part and the assembling of bearing, had solved the sequence of sanqu songs within a particular musical mode problem of bearing when transportation, installation simultaneously again.
As accompanying drawing 6, shown in Figure 7: inner ring 3 is provided with diameter, raceway 9a that curvature is identical, raceway 9a is the structural type of forming peach shape ditch of 0.525 times of rolling element diameter by two radius of curvature R 1, this structure Design can improve the bearing capacity of bearing, can adapt to the requirement of high rotating speed applying working condition simultaneously again; Inner ring 3 is evenly distributed in mounting hole 10a, and mounting hole 10a is having counterbore 13a can make things convenient for connecting of hole on bolt and the small gear on the end face 8a of inner ring 3, and does not interfere with other part.
As accompanying drawing 8, shown in Figure 9: retainer 5 is an integral cage 5, adopt the mode of inner ring 3 ribs 12 guiding, rotate requirement flexibly to guarantee bearing, pocket hole 14 is designed to cylindrical structural type, when bearing assembles, make things convenient for packing into of steel ball 4, make the running of bearing more steady.
Claims (7)
1. special-purpose four-point contact ball, it comprises: first semi outer rings (1), second semi outer rings (2), inner ring (3), steel ball (4), retainer (5), locating stud (6), bolt (7) is characterized in that: bearing contact angle is 45 °; Bearing is negative play; First semi outer rings (1), second semi outer rings (2), inner ring (3) are respectively arranged with mounting hole (10), (10a); First semi outer rings (1), second semi outer rings (2) are provided with diameter, raceway (9) that curvature is identical, and first semi outer rings (1), second semi outer rings (2) are by locating stud (6) and the connection of bolt (7) location; Inner ring (3) is provided with diameter, raceway (9a) that curvature is identical.
2. a kind of special-purpose four-point contact ball according to claim 1 is characterized in that: the raceway (9) of described first semi outer rings (1), second semi outer rings (2) upper end is the peach shape groove structure that 0.535 times of rolling element diameter is formed by two radius of curvature R.
3. a kind of special-purpose four-point contact ball according to claim 1 is characterized in that: described inner ring raceway (9a) is the peach shape groove structure that 0.525 times of rolling element diameter is formed by two radius of curvature R 1.
4. a kind of special-purpose four-point contact ball according to claim 1 is characterized in that: the large end face (8) of the mounting hole (10) of second semi outer rings (2) is provided with counterbore (13).
5. a kind of special-purpose four-point contact ball according to claim 1 is characterized in that: the end face (8a) of the mounting hole (10a) of inner ring (3) is provided with counterbore (13a).
6. a kind of special-purpose four-point contact ball according to claim 1 is characterized in that: described retainer (5) is the integral cage (5) of inner ring (3) rib (12) guidance mode.
7. a kind of special-purpose four-point contact ball according to claim 4 is characterized in that: described retainer (5) pocket hole (14) is a cylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206788951U CN201925335U (en) | 2010-12-24 | 2010-12-24 | Dedicated four-point contact ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206788951U CN201925335U (en) | 2010-12-24 | 2010-12-24 | Dedicated four-point contact ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201925335U true CN201925335U (en) | 2011-08-10 |
Family
ID=44429185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206788951U Expired - Fee Related CN201925335U (en) | 2010-12-24 | 2010-12-24 | Dedicated four-point contact ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201925335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864283A (en) * | 2016-05-25 | 2016-08-17 | 浙江来福谐波传动股份有限公司 | Four-point contact bearing for harmonic reducer |
-
2010
- 2010-12-24 CN CN2010206788951U patent/CN201925335U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864283A (en) * | 2016-05-25 | 2016-08-17 | 浙江来福谐波传动股份有限公司 | Four-point contact bearing for harmonic reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 471003, Binhe Road, hi tech Zone, Henan, Luoyang, 18 Patentee after: LUOYANG PRECISION OF MACHINE EQUIPMENT TECHNOLOGY CO., LTD. Address before: 471003, Binhe Road, hi tech Zone, Henan, Luoyang, 18 Patentee before: Zhongji Luoyang Bearing Sci. & Tech. Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20191224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |