CN102720759A - Slewing bearing - Google Patents
Slewing bearing Download PDFInfo
- Publication number
- CN102720759A CN102720759A CN2012100000407A CN201210000040A CN102720759A CN 102720759 A CN102720759 A CN 102720759A CN 2012100000407 A CN2012100000407 A CN 2012100000407A CN 201210000040 A CN201210000040 A CN 201210000040A CN 102720759 A CN102720759 A CN 102720759A
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- CN
- China
- Prior art keywords
- outer ring
- annular protrusion
- roller
- space
- rollaway nest
- 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.)
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Abstract
The invention discloses a slewing bearing and relates to the technical field of bearings. The slewing bearing comprises an inner ring (3), an outer ring and rollers. The outer ring has a structure comprising an upper part (1) and a lower part (2). The upper part (1) and the lower part (2) of the outer ring are connected by connecting bolts (7). A middle part of the inner ring (3) is provided with an annular protrusion (9). An upper end face (10) of the annular protrusion (9) and the upper part (1) of the outer ring form a main thrust rollaway nest space. The rollers (4) arranged on holders (5) are arranged in the main thrust rollaway nest space. A lower end face (11) of the annular protrusion (9) and the lower part (2) of the outer ring form a reverse thrust rollaway nest space. The rollers (6) arranged on holders (7) are arranged in the reverse thrust rollaway nest space. An outer ring (12) of the annular protrusion (9) and the lower part (2) of the outer ring form a rollaway nest space. The rollers (13) are arranged in the rollaway nest space. Through three rows of the rollaway nest spaces, an integral bearing capability of the slewing bearing is improved by 50 to 70%.
Description
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Technical field
The present invention relates to technical field of bearings, be specifically related to a kind of pivoting support.
Background technique
Existing pivoting support bearing capacity does not reach customer requirement, and needing increases roller length, when same angle, because the difference of linear velocity occurs the roller change easily and tiltedly takes the least important seat at a square table, increases friction, causes heating, can produce burn when serious; And the collocation form of existing pivoting support roller, a little less than the integrated carrying ability, flexibility of revolution is poor, thereby influences the working life of pivoting support.
Summary of the invention
The invention technical problem to be solved provides the pivoting support that a kind of bearing load is big, rotate flexibly, reach long service life.
A kind of pivoting support comprises inner ring, outer ring and roller, and said outer ring is set to the structure of top and the bottom, and top, outer ring is connected through connecting bolt with the bottom, outer ring; Said inner ring middle part is provided with annular protrusion, and main thrust raceway space is formed at said annular protrusion upper-end surface and top, outer ring, is provided with in the main thrust raceway space and is arranged in the roller on the retainer; Reaction thrust raceway space is formed at said annular protrusion lower end surface and bottom, outer ring, is provided with in the reaction thrust raceway space and is arranged in the roller on the retainer; The raceway space is formed at said annular protrusion outer ring and bottom, outer ring, and raceway is provided with roller in the space.
Because adopt technique scheme, the invention possesses following beneficial effect:
1, between inner ring and outer ring, be provided with three row's raceways, the main thrust raceway is respectively equipped with two identical rollers with the reaction thrust raceway, has increased the integrated carrying ability of pivoting support.
2, two identical rollers use in retainer side by side, when having avoided a roller roller longer, because the difference of linear velocity the roller change occurs and tiltedly takes the least important seat at a square table, increase friction in same angle, cause heating, can produce the phenomenon of burn when serious.Reduce frictional heating, improved the working life of pivoting support.
Description of drawings
Fig. 1 is the structural representation of the pivoting support of the invention;
Among the figure: 1, top, outer ring; 2, bottom, outer ring; 3, inner ring; 4, roller; 5, retainer; 6, roller; 7, retainer; 8, connecting bolt; 9, annular protrusion; 10, annular protrusion upper-end surface; 11, annular protrusion lower end surface; 12, annular protrusion external diameter; 13, roller.
Embodiment
In conjunction with Fig. 1, the pivoting support of present embodiment, the outer ring is set to the structure of top and the bottom, and top, outer ring 1 is connected through connecting bolt 8 with bottom, outer ring 2; Inner ring 3 middle parts are provided with annular protrusion 9, and annular protrusion upper-end surface 10 forms main thrust raceway space with top, outer ring 1, is provided with in the main thrust raceway space and is arranged in the roller 4 on the retainer 5; Annular protrusion lower end surface 11 forms reaction thrust raceway space with bottom, outer ring 2, is provided with in the reaction thrust raceway space and is arranged in the roller 6 on the retainer 7; Inner ring annular protrusion 12 forms the raceway space with 2 middle parts, outer ring, and roller 13 is set in the raceway space.
Three arrange raceways, have increased the integrated carrying ability of pivoting support, make the integrated carrying ability of pivoting support improve 50%～70%.
Claims (1)
1. a pivoting support comprises inner ring (3), outer ring and roller, and it is characterized in that: said outer ring is set to the structure of top and the bottom, and top, outer ring (1) is connected through connecting bolt (7) with bottom, outer ring (2); Said inner ring (3) middle part is provided with annular protrusion (9), and said annular protrusion upper-end surface (10) forms main thrust raceway space with top, outer ring (1), is provided with in the main thrust raceway space and is arranged in the roller (4) on the retainer (5); Said annular protrusion lower end surface (11) forms reaction thrust raceway space with bottom, outer ring (2), is provided with in the reaction thrust raceway space and is arranged in the roller (6) on the retainer (7); Said annular protrusion outer ring (12) forms the raceway space with the bottom, outer ring, and roller (13) is set in the raceway space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100000407A CN102720759A (en) | 2012-01-01 | 2012-01-01 | Slewing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100000407A CN102720759A (en) | 2012-01-01 | 2012-01-01 | Slewing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102720759A true CN102720759A (en) | 2012-10-10 |
Family
ID=46946597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100000407A Pending CN102720759A (en) | 2012-01-01 | 2012-01-01 | Slewing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102720759A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016516A (en) * | 2012-11-23 | 2013-04-03 | 徐州盾安景泰重工机械制造有限公司 | Slewing bearing of full-bushing full-slewing drilling machine |
| CN103861521A (en) * | 2014-03-07 | 2014-06-18 | 株洲光明重型机械制造有限公司 | Slewing bearing method for disc of disc-type balling machine and slewing bearing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4248488A (en) * | 1979-02-07 | 1981-02-03 | Rotek Incorporated | Quick disconnect bearing mount for construction machinery |
| CN201568451U (en) * | 2009-12-25 | 2010-09-01 | 徐州丰禾回转支承制造有限公司 | Double rows of pin rollers type rotating support |
| CN201647860U (en) * | 2010-02-08 | 2010-11-24 | 三一汽车制造有限公司 | Three-ring slewing bearing structure |
| CN101936332A (en) * | 2010-08-26 | 2011-01-05 | 马鞍山统力回转支承有限公司 | Six-row roller-type pivoting support and processing method thereof |
| CN201908951U (en) * | 2010-08-26 | 2011-07-27 | 马鞍山统力回转支承有限公司 | Slewing bearing with six rows of rollers |
-
2012
- 2012-01-01 CN CN2012100000407A patent/CN102720759A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4248488A (en) * | 1979-02-07 | 1981-02-03 | Rotek Incorporated | Quick disconnect bearing mount for construction machinery |
| CN201568451U (en) * | 2009-12-25 | 2010-09-01 | 徐州丰禾回转支承制造有限公司 | Double rows of pin rollers type rotating support |
| CN201647860U (en) * | 2010-02-08 | 2010-11-24 | 三一汽车制造有限公司 | Three-ring slewing bearing structure |
| CN101936332A (en) * | 2010-08-26 | 2011-01-05 | 马鞍山统力回转支承有限公司 | Six-row roller-type pivoting support and processing method thereof |
| CN201908951U (en) * | 2010-08-26 | 2011-07-27 | 马鞍山统力回转支承有限公司 | Slewing bearing with six rows of rollers |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016516A (en) * | 2012-11-23 | 2013-04-03 | 徐州盾安景泰重工机械制造有限公司 | Slewing bearing of full-bushing full-slewing drilling machine |
| CN103861521A (en) * | 2014-03-07 | 2014-06-18 | 株洲光明重型机械制造有限公司 | Slewing bearing method for disc of disc-type balling machine and slewing bearing |
| CN103861521B (en) * | 2014-03-07 | 2016-09-14 | 株洲光明重型机械制造有限公司 | A kind of disc balling machine disk pivoting support method and pivoting support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |