CN104214225A - Double-row four-point contact ball turntable bearing - Google Patents
Double-row four-point contact ball turntable bearing Download PDFInfo
- Publication number
- CN104214225A CN104214225A CN201410444788.5A CN201410444788A CN104214225A CN 104214225 A CN104214225 A CN 104214225A CN 201410444788 A CN201410444788 A CN 201410444788A CN 104214225 A CN104214225 A CN 104214225A
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- China
- Prior art keywords
- outer ring
- bearing
- double
- point touching
- steel ball
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Abstract
The invention discloses a double-row four-point contact ball turntable bearing, and belongs to the technical field of bearings. The double-row four-point contact ball turntable bearing comprises an outer ring A (1), an outer ring B (2), bearing inner rings (6), a seal, a first-row steel ball component A (4) and a second-row steel ball component B (5), wherein the outer ring A is arranged at the upper part of the outer ring B; circular arc rolling ways are respectively formed in the inner side surfaces of the outer ring A and the outer ring B; the bearing inner rings are arranged at one sides of the outer ring A and the outer ring B; a first step (9) and a second step (10) outwards extending are arranged at one sides of the bearing inner rings; the first step is arranged between the outer ring A and the outer ring B; the circular arc rolling ways formed in the inner side surfaces of the outer ring A and the outer ring B are corresponding to a circular arc rolling way formed in the second step surface; and outer inclined teeth (8) are arranged on the outer side surface of the first step of the bearing inner rings. The double-row four-point contact ball turntable bearing has such advantages as high bearing, smooth operation and reliable transmission, and can particularly satisfy the use requirements of a solar tracking device.
Description
[technical field]
The invention belongs to technical field of bearings, specifically the present invention relates to a kind of double four point touching ball slewing bearing.
[background technique]
Known, the inner ring of traditional double four point touching ball slewing bearing and outer ring are all overall, or are inner wrap strip internal tooths, or are outer astragal external tooth; And solar energy tracking device middle (center) bearing outer ring is fixed, bearing inner race is connected with solar panels mechanism, need change with solar azimuth and rotate, therefore inner ring must be with tooth to rotate to realize inner ring, because actuation gear is outside bearing, must be that external tooth could engage with actuation gear, inner ring bears larger power simultaneously, need the whole gravity bearing solar panels mechanism, the load such as wind-force, therefore require that inner ring rigidity will be got well, simultaneously the bearing capacity of tooth requires higher, but this double four point touching ball slewing bearing so far there are no relevant report.
[summary of the invention]
In order to overcome the deficiency in background technique, the invention discloses a kind of double four point touching ball slewing bearing, by bearing outer ring is made separate type, bearing inner race 6 is done integrally, not only increase the rigidity of bearing inner race, and increase effectively bearing capacity.
For achieving the above object, the present invention adopts following technological scheme:
A kind of double four point touching ball slewing bearing, comprise outer ring A, outer ring B, bearing inner race, sealing, first row steel ball component A and second row steel ball component B, described outer ring A and outer ring B forms bearing outer ring jointly, outer ring A is provided with on the top of outer ring B, the inner side surface of outer ring A and outer ring B is equipped with arc raceway, bearing inner race is provided with in the side of outer ring A and outer ring B, outward extending first step and second step is provided with in the side of bearing inner race, described first step is arranged between outer ring A and outer ring B, outer ring A and the arc raceway on the B inner side surface of outer ring and the corresponding setting of arc raceway that second step face is arranged, at outer ring A, first row steel ball component A is provided with between arc raceway on the B inner side surface of outer ring and the arc raceway on second step face, second row steel ball component B, the outer side surface of the first step of bearing inner race is provided with outer helical teeth, described first step respectively with outer ring A, identical gap is provided with between the B of outer ring.
Described double four point touching ball slewing bearing, described sealing comprises sealing and lower seal, is provided with and the upper sealing that second step outer rim is docked respectively and lower seal in the seal groove on outer ring A and outer ring B inner side surface.
Described double four point touching ball slewing bearing, the end face of outer ring A and outer ring B is respectively equipped with the oil duct leading to arc raceway.
Described double four point touching ball slewing bearing, the central axes of the arcuate groove of described outer ring A and outer ring B inner side surface is arranged.
Described double four point touching ball slewing bearing, the center-diameter=D of described first row steel ball component A and second row steel ball component B, described D is given by designing.
Described double four point touching ball slewing bearing, the tip diameter of described outer helical teeth is greater than bearing outer ring external diameter.
Described double four point touching ball slewing bearing, the diameter of described second step is less than bearing outer ring external diameter, and namely second step is lower than bearing outer ring end face.
Owing to have employed technique scheme, the present invention has following superiority:
1, by bearing outer ring is made separate type, bearing inner race 6 is done integrally, not only increase the rigidity of bearing inner race, and increase effectively bearing capacity;
2, at the outer helical teeth of the arranged outside of bearing inner race 6 first step 9, with external drive gears meshing, realize inner ring and rotate, tooth adopts helical teeth, substantially increases the bearing capacity of tooth;
3, double four point touching ball slewing bearing of the present invention, has high-mechanic, operates steadily, the advantage such as reliable transmission, especially can meet the usage requirement of solar energy tracking device;
4, double four point touching ball slewing bearing of the present invention, compact structure, bearing capacity is strong, and good rigidly, the feature that interface is simple, improves the overall structure performance of this bearing.
[Figure of description]
Fig. 1 is structural representation of the present invention;
In the drawings: 1, outer ring A; 2, outer ring B; 3, upper sealing; 4, first row steel ball component A; 5, second row steel ball component B; 6, bearing inner race; 7, lower seal; 8, outer helical teeth; 9, first step; 10, second step.
[embodiment]
Can explain the present invention in more detail by the following examples, the present invention is not limited to the following examples;
Double four point touching ball slewing bearing by reference to the accompanying drawings described in 1, comprise outer ring A1, outer ring B2, bearing inner race 6, sealing, first row steel ball component A4 and second row steel ball component B5, described outer ring A1 and outer ring B2 forms bearing outer ring jointly, outer ring A1 is provided with on the top of outer ring B2, the inner side surface of outer ring A1 and outer ring B2 is equipped with arc raceway, bearing inner race 6 is provided with in the side of outer ring A1 and outer ring B2, outward extending first step 9 and second step 10 is provided with in the side of bearing inner race 6, described first step 9 is arranged between outer ring A1 and outer ring B2, the outer ring A1 arc raceway corresponding setting that arrange upper with the arc raceway on the B2 inner side surface of outer ring and second step 10, at outer ring A1, first row steel ball component A4 is provided with between arc raceway on arc raceway on the B2 inner side surface of outer ring and second step 10, second row steel ball component B5, the outer side surface of the first step 9 of bearing inner race 6 is provided with outer helical teeth 8, described first step 9 respectively with outer ring A1, identical gap is provided with between the B2 of outer ring.
Described double four point touching ball slewing bearing, described sealing comprises sealing 3 and lower seal 7, is provided with and the upper sealing 3 that second step outer rim is docked respectively and lower seal 7 in the seal groove on outer ring A1 and outer ring B2 inner side surface.
Described double four point touching ball slewing bearing, the end face of outer ring A1 and outer ring B2 is respectively equipped with the oil duct leading to arc raceway.
Described double four point touching ball slewing bearing, the central axes of the arcuate groove of described outer ring A1 and outer ring B2 inner side surface is arranged.
Described double four point touching ball slewing bearing, the center-diameter=D of described first row steel ball component A4 and second row steel ball component B5, described D is given by designing.
Described double four point touching ball slewing bearing, the tip diameter of described outer helical teeth 8 is greater than bearing outer ring external diameter.
Described double four point touching ball slewing bearing, the diameter of described second step 10 is less than bearing outer ring external diameter, and namely second step 10 is lower than bearing outer ring end face.
Implement double four point touching ball slewing bearing of the present invention, when assembling, at outer ring A1, first row steel ball component A4 and second row steel ball component B5 is respectively fitted with in arcuate groove between outer ring B2 and bearing inner race 6, the center line of the two row's steel balls assembled overlaps with bearing central axis, then at outer ring A1, sealing 3 and lower seal 7 is assembled in the closure gasket groove of outer ring B2, dock with bearing inner race 6 second step 10 respectively, namely the assembling of double four point touching ball slewing bearing is completed, not only achieve inner ring and actuation gear engagement rotation, and larger torque can be born.
Part not in the detailed description of the invention is prior art.
The embodiment selected in this article in order to open goal of the invention of the present invention, currently thinks to be suitable for, but it is to be understood that the present invention is intended to comprise all changes belonging to the embodiment in this design and invention scope and improvement.
Claims (7)
1. a double four point touching ball slewing bearing, it is characterized in that: comprise outer ring A(1), outer ring B(2), bearing inner race (6), sealing, first row steel ball component A(4) and second row steel ball component B(5), described outer ring A(1) and outer ring B(2) jointly form bearing outer ring, at outer ring B(2) top be provided with outer ring A(1), at outer ring A(1) and outer ring B(2) inner side surface on be equipped with arc raceway, at outer ring A(1) and outer ring B(2) side be provided with bearing inner race (6), outward extending first step (9) and second step (10) is provided with in the side of bearing inner race (6), described first step (9) is arranged on outer ring A(1) and outer ring B(2) between, outer ring A(1) with outer ring B(2) arc raceway on inner side surface and the corresponding setting of arc raceway that second step (10) face is arranged, at outer ring A(1), outer ring B(2) arc raceway on inner side surface and be provided with first row steel ball component A(4 between the arc raceway on second step (10) face), second row steel ball component B(5), the outer side surface of the first step (9) of bearing inner race (6) is provided with outer helical teeth (8), described first step (9) respectively with outer ring A(1), outer ring B(2) between be provided with identical gap.
2. double four point touching ball slewing bearing according to claim 1, it is characterized in that: described sealing comprises sealing (3) and lower seal (7), at outer ring A(1) and outer ring B(2) be provided with and the upper sealing (3) that second step outer rim is docked respectively and lower seal (7) in seal groove on inner side surface.
3. double four point touching ball slewing bearing according to claim 1, is characterized in that: at outer ring A(1) and outer ring B(2) end face on be respectively equipped with the oil duct leading to arc raceway.
4. double four point touching ball slewing bearing according to claim 1, is characterized in that: described outer ring A(1) and outer ring B(2) inner side surface arcuate groove central axes arrange.
5. double four point touching ball slewing bearing according to claim 1, is characterized in that: described first row steel ball component A(4) and second row steel ball component B(5) center-diameter=D, described D is given by designing.
6. double four point touching ball slewing bearing according to claim 1, is characterized in that: the tip diameter of described outer helical teeth (8) is greater than bearing outer ring external diameter.
7. double four point touching ball slewing bearing according to claim 1, is characterized in that: the diameter of described second step (10) is less than bearing outer ring external diameter, and namely second step (10) is lower than bearing outer ring end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410444788.5A CN104214225A (en) | 2014-09-03 | 2014-09-03 | Double-row four-point contact ball turntable bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410444788.5A CN104214225A (en) | 2014-09-03 | 2014-09-03 | Double-row four-point contact ball turntable bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104214225A true CN104214225A (en) | 2014-12-17 |
Family
ID=52096025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410444788.5A Pending CN104214225A (en) | 2014-09-03 | 2014-09-03 | Double-row four-point contact ball turntable bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104214225A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008049814A1 (en) * | 2008-09-30 | 2010-04-01 | Schaeffler Kg | Rotary connection, for example, for a wind turbine and wind turbine with the rotary joint |
| JP2012172774A (en) * | 2011-02-22 | 2012-09-10 | Nsk Ltd | Bearing device, rotary table of machine tool, and spindle device |
| CN202732687U (en) * | 2012-04-12 | 2013-02-13 | 马鞍山方圆回转支承股份有限公司 | Space overlying double-rotation single-row ball type slewing bearing |
| CN103256300A (en) * | 2013-05-27 | 2013-08-21 | 无锡市顺凯机械制造厂 | Novel rotary supporting structure |
| CN103967929A (en) * | 2014-04-18 | 2014-08-06 | 洛阳轴研科技股份有限公司 | Double-row ball-shaped ship used loop wheel machine turntable bearing |
-
2014
- 2014-09-03 CN CN201410444788.5A patent/CN104214225A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008049814A1 (en) * | 2008-09-30 | 2010-04-01 | Schaeffler Kg | Rotary connection, for example, for a wind turbine and wind turbine with the rotary joint |
| JP2012172774A (en) * | 2011-02-22 | 2012-09-10 | Nsk Ltd | Bearing device, rotary table of machine tool, and spindle device |
| CN202732687U (en) * | 2012-04-12 | 2013-02-13 | 马鞍山方圆回转支承股份有限公司 | Space overlying double-rotation single-row ball type slewing bearing |
| CN103256300A (en) * | 2013-05-27 | 2013-08-21 | 无锡市顺凯机械制造厂 | Novel rotary supporting structure |
| CN103967929A (en) * | 2014-04-18 | 2014-08-06 | 洛阳轴研科技股份有限公司 | Double-row ball-shaped ship used loop wheel machine turntable bearing |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20141217 |