CN203130791U - Slewing bearing with mixed loading steel balls and pin rollers - Google Patents
Slewing bearing with mixed loading steel balls and pin rollers Download PDFInfo
- Publication number
- CN203130791U CN203130791U CN 201220741702 CN201220741702U CN203130791U CN 203130791 U CN203130791 U CN 203130791U CN 201220741702 CN201220741702 CN 201220741702 CN 201220741702 U CN201220741702 U CN 201220741702U CN 203130791 U CN203130791 U CN 203130791U
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- CN
- China
- Prior art keywords
- roller
- steel ball
- raceway
- slewing bearing
- spacing block
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a slewing bearing with mixed loading steel balls and pin rollers. The slewing bearing comprises an outer ring and an inner ring, wherein the inner side face of the outer ring and the outer side face of the inner ring are correspondingly provided with annular grooves the cross sections of which form right-angled isosceles triangular shapes; the two right-angled isosceles triangular grooves are combined to form an annular raceway the cross section of which forms a square shape; a plurality of steel balls are installed in the raceway; and the pin rollers are distributed between the adjacent steel balls at intervals. The slewing bearing is beneficial to lubrication and maintenance of a rolling structure, and the maintenance cycle and the service life of the slewing bearing are greatly prolonged.
Description
Technical field
The utility model belongs to the novel mechanical product technical field, relates to a kind of pivoting support that loads in mixture steel ball and roller.
Background technique
Pivoting support a kind ofly is made of inside and outside two steel rings, raceway, rolling elements, and is provided with gear ring, eyelet, oil circuit and Sealing Device, can bear the large-scale combined bearing of axial force, radial force and tilting moment simultaneously.The basic structure form of pivoting support is " single four-point contact ball formula ", namely at the corresponding anchor ring of Internal and external cycle a ring-type cylindrical shape raceway is set, the spherical rolling element steel ball of filling in the raceway, that every steel ball is set is upper left, upper right, bottom right, four the somes contacts in lower-left raceway wall, separates with the plastic cement spacing block between the adjacent steel ball.The characteristics of single four-point contact ball slewing supporting be simple in structure, rollability is strong, highly sensitive, can go slick.Yet because its point of contact is few, the gap is bigger than normal, precision is general, thereby poor stability, beating degree are big.The invention is exactly when giving full play to single raceway ball-type slewing bearing advantage, increases point of contact, improves stability and strength, to optimize the particularly rolling structure of large-scale precision level pivoting support of pivoting support.
The model utility content
The utility model provides a kind of the mixing in same raceway of pivoting support to load most steel balls in an orderly manner and on a small quantity with the roller of diameter, by optimizing the rolling structure of pivoting support, improve the pivoting support that loads in mixture steel ball and roller of quality and the precision of product.
The utility model technical solution problem provides following scheme:
A kind of pivoting support that loads in mixture steel ball and roller, comprise outer ring and inner ring, it is characterized in that: the outer side surface correspondence of the inner side surface of described outer ring and described inner ring is provided with the annular recess that cross section is right angled isosceles triangle, it is foursquare ring-type raceway that two right angled isosceles triangle grooves are merged into a sliver transvers section, most steel balls are installed in the described raceway, even a small amount of roller that distributes between steel ball, roller is one group with 2～4, the axis of adjacent roller is vertical mutually.
Be provided with the plastic cement spacing block between described every steel ball or the roller, spacing block two sides between the adjacent steel ball is provided with spherical recess, spacing block two sides between the adjacent roller is provided with cylindrical recesses and two grooves are perpendicular, adjacent steel ball and the spacing block between the roller simultaneously are provided with spherical recess, another side is provided with cylindrical recesses, and the cambered surface of all spherical recesses and cylindrical recesses all is complementary with the sphere of steel ball and the cylinder of roller.
Advantage of the present utility model
1 adds a spot of pillar rolling element in the ball formula rolling element of pivoting support, this part pillar rolling element by 4 contact raceway walls become on two point of contact lines have a few and contact level and smooth raceway wall simultaneously, obviously increased the quantity of point of contact, this neither influences rollability and the sensitivity of pivoting support, strengthen its stationarity and strength again greatly, thereby optimized the particularly rolling structure of large-size pivoting support of pivoting support.
2 load steel ball in ring-type square raceway, the same with ring-type cylindrical shape raceway, the position of four point of contact of steel ball does not change at all, but the precision that point contacts with even surface greatly improves than the precision that point contacts with cambered surface, simultaneously, processing even surface raceway also comes conveniently than processing cambered surface raceway and is accurate, thereby is conducive to improve precision and the quality of pivoting support rolling structure.
3 ring-types square raceway, compared with the ring-type cylindrical shape raceway of filling with the diameter rolling element, sectional area is many greatly, cavity remaining behind the filling rolling element is much more, this makes in the raceway can clog more butter, thereby be conducive to the lubricated and maintenance of rolling structure, prolong service cycle and the working life of pivoting support greatly.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is raceway structural representation of the present utility model.
Fig. 3 is spacing block structural representation between the adjacent steel ball of the present utility model.
Fig. 4 is spacing block structural representation between the adjacent roller of the present utility model.
Fig. 5 is adjacent steel ball of the present utility model and the spacing block structural representation between the roller.
Embodiment
Referring to accompanying drawing, a kind of pivoting support that loads in mixture steel ball and roller, comprise outer ring 1 and inner ring 2, the outer side surface correspondence of the inner side surface of described outer ring 1 and described inner ring 2 is provided with the annular recess that cross section is right angled isosceles triangle, it is foursquare ring-type raceway 3 that two right angled isosceles triangle grooves are merged into a sliver transvers section, and most steel balls 4 are installed in the described raceway 3, and a small amount of roller 5 evenly distributes between steel ball 4,52～4 of rollers are one group, and the axis of adjacent roller 5 is perpendicular.
Be provided with plastic cement spacing block 6 between described every steel ball 4 or the roller 5, spacing block 6 two sides between the adjacent steel ball 4 are provided with spherical recess 7, spacing block 6 two sides between the adjacent roller 5 are provided with cylindrical recesses 8 and two grooves 8 are perpendicular, adjacent steel ball 4 and 6 one sides of the spacing block between the roller 5 are provided with spherical recess 7, another side is provided with cylindrical recesses 8, and the cylinder of the radian of spherical recess 7 and cylindrical recesses 8 and the sphere of steel ball 4 and roller 5 is complementary.
Claims (2)
1. pivoting support that loads in mixture steel ball and roller, comprise outer ring and inner ring, it is characterized in that: the outer side surface correspondence of the inner side surface of described outer ring and described inner ring is provided with the annular recess that cross section is right angled isosceles triangle, it is foursquare ring-type raceway that two right angled isosceles triangle grooves are merged into a sliver transvers section, most steel balls are installed in the described raceway, even a small amount of roller that distributes between steel ball, roller is one group with 2～4, the axis of adjacent roller is vertical mutually.
2. according to the described pivoting support that loads in mixture steel ball and roller of claim 1, it is characterized in that: be provided with the plastic cement spacing block between described every steel ball or the roller, spacing block two sides between the adjacent steel ball is provided with spherical recess, spacing block two sides between the adjacent roller is provided with cylindrical recesses and two grooves are perpendicular, adjacent steel ball and the spacing block between the roller simultaneously are provided with spherical recess, another side is provided with cylindrical recesses, and the radian of spherical recess and cylindrical recesses and steel ball and roller are complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220741702 CN203130791U (en) | 2012-12-28 | 2012-12-28 | Slewing bearing with mixed loading steel balls and pin rollers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220741702 CN203130791U (en) | 2012-12-28 | 2012-12-28 | Slewing bearing with mixed loading steel balls and pin rollers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130791U true CN203130791U (en) | 2013-08-14 |
Family
ID=48938771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220741702 Expired - Fee Related CN203130791U (en) | 2012-12-28 | 2012-12-28 | Slewing bearing with mixed loading steel balls and pin rollers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511451A (en) * | 2013-09-07 | 2014-01-15 | 安徽枞晨回转支承有限公司 | Double-raceway yaw bearing with one round raceway and one square raceway |
-
2012
- 2012-12-28 CN CN 201220741702 patent/CN203130791U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511451A (en) * | 2013-09-07 | 2014-01-15 | 安徽枞晨回转支承有限公司 | Double-raceway yaw bearing with one round raceway and one square raceway |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |