CN202833631U - Gear bearing used for planetary reducer - Google Patents
Gear bearing used for planetary reducer Download PDFInfo
- Publication number
- CN202833631U CN202833631U CN 201220376258 CN201220376258U CN202833631U CN 202833631 U CN202833631 U CN 202833631U CN 201220376258 CN201220376258 CN 201220376258 CN 201220376258 U CN201220376258 U CN 201220376258U CN 202833631 U CN202833631 U CN 202833631U
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- raceway
- outer ring
- ring
- gear
- bearing
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Abstract
The utility model discloses a gear bearing for a planetary reducer. The gear bearing comprises an outer ring, an inner ring and rolling bodies. The outer ring is an outer gear ring, and gear teeth which are distributed evenly are arranged on the outer surface of the outer ring. A smooth rolling way is arranged on the inner surface of the outer ring. Stopping edges are arranged on two sides of a rolling way of the inner ring, and rolling bodies are arranged inside the rolling way of the inner ring in a close mode and are matched with the rolling way of the outer ring. Accordingly, the gear bearing can improve the assembly precision of the bearing, prolong the service life and improve the stability and the reliability of main machine equipment.
Description
Technical field
The utility model relates to field of bearings, particularly relates to a kind of planetary speed reducer gear-bearing.
Background technique
Planetary speed reducer is a kind of broad-spectrum industrial products, its performance can compare favourably with other army's grade speed reducer product, the price that technical grade product is but arranged is mainly used in the swirl gear of tower crane, can be used as again matching parts and is used for the industries such as lifting, excavation, transportation, building.
At present, the bearing that adopts in the planetary mechanism of most domestic speed reducer is the roller bearing of basic structure, produces easily concentric error in transmission, affects the load capacity of bearing and the stationarity of running.Because the bearing in the speed reducer planetary mechanism, its structural requirement is compact, and reliability requirement is high, but traditional raising bearing capacity and the method for reliability are to strengthen bearing size, and this will make the size of speed reducer strengthen, weight increases, and greatly increases cost, is not suitable for deceleration system.And outsourcing inner ring and roller come to use with own planetary pinion assembling, and this mode can't guarantee the assembling play of planetary precision and integral body in assembly process, and these all will directly affect the smoothness of operation of speed reducer and life-span etc.
The model utility content
The technical problem that the utility model mainly solves provides a kind of planetary speed reducer gear-bearing, can improve the assembly precision of bearing, increases the service life, and improves stability and the reliability of main process equipment.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of planetary speed reducer gear-bearing is provided, comprise: outer ring, inner ring and rolling element, described outer ring is the gear outer ring, its outer surface is provided with the equally distributed gear teeth, and the internal surface of described outer ring is provided with smooth raceway, and the raceway both sides of described inner ring are equipped with rib, described rolling element solid matter is arranged in the raceway of described inner ring, and matches with the raceway of described outer ring.
In preferred embodiment of the utility model, described gear-bearing also comprises a stop ring and two loose ribs, be provided with a locking groove in the middle of the raceway of described outer ring, be provided with described stop ring in the described locking groove, the bilateral symmetry of described stop ring is provided with described loose rib, and described inner ring is to be arranged side by side by two sub-inner rings to form, and described rolling element has two groups, solid matter is arranged in the raceway of two sub-inner rings respectively, and the inner plane of described rolling element matches with the another side of described loose rib.
In preferred embodiment of the utility model, the width of described inner ring is less than the width of described outer ring.
In preferred embodiment of the utility model, the roughness of described inner ring raceway and outer ring raceway is less than or equal to 0.16 μ m.
In preferred embodiment of the utility model, the circularity of described inner ring raceway and outer ring raceway is less than or equal to 1 μ m.
The beneficial effects of the utility model are: the utility model has disclosed a kind of planetary speed reducer gear-bearing, by reducing bearing outer ring, directly adopt planetary pinion as bearing outer ring, guarantee the load capacity of bearing, and overcome concentric error, adopted simultaneously rational internal structure design, can improve the assembly precision of bearing, increase the service life, apply to the gear train assembly of planetary speed reducer, can improve stability and the reliability of main process equipment.
Description of drawings
Fig. 1 is the structural representation that the utility model planetary speed reducer is used gear-bearing one preferred embodiment;
Fig. 2 is the structural representation of outer ring shown in Figure 1;
The mark of each parts is as follows in the accompanying drawing: 1, outer ring, 11, locking groove, 2, inner ring, 21, rib, 3, rolling element, 4, stop ring, 5, loose rib.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that protection domain of the present utility model is made more explicit defining.
See also Fig. 1, the utility model is embodiment comprise:
A kind of planetary speed reducer gear-bearing, comprise: outer ring 1, inner ring 2 and rolling element 3, described outer ring 1 is the gear outer ring, its outer surface is provided with the equally distributed gear teeth, the internal surface of described outer ring 1 is provided with smooth raceway, the raceway both sides of described inner ring 2 are equipped with rib 21, and described rolling element 3 solid matters are arranged in the raceway of described inner ring 2, and match with the raceway of described outer ring 1.
Wherein, described gear-bearing also comprises a stop ring 4 and two loose ribs 5, be provided with a locking groove 11 in the middle of the raceway of described outer ring 1, be provided with described stop ring 4 in the described locking groove 11, the bilateral symmetry of described stop ring 4 is provided with described loose rib 5, and described inner ring 2 is to be arranged side by side by two sub-inner rings to form, and described rolling element 3 has two groups, solid matter is arranged in the raceway of two sub-inner rings respectively, and the inner plane of described rolling element 3 matches with the another side of described loose rib 5.
The width of described inner ring 2 is less than the width of described outer ring 1.
The roughness of the raceway of the raceway of described inner ring 2 and outer ring 1 is less than or equal to 0.16 μ m.
The circularity of the raceway of the raceway of described inner ring 2 and outer ring 1 is less than or equal to 1 μ m.
Planetary speed reducer gear-bearing of the present utility model with respect to common gear-bearing, has increased the operation of cutting raceway and superfinishing raceway with pitch circle location mill, and the operation of finished product play control detection.In the ball race grinding operation, by special fixture the workpiece pitch circle is positioned on the electric magnetic no-core clamp, and then grinding race reaches desirable requirement, comprise and finish track convex degree processing, Wall-Thickness Difference can be controlled in 2 ~ 5 mu m ranges; In raceway superfinishing operation, still use special fixture to locate with pitch circle, and with pinch roller workpiece end face is compressed, thereby superfinishing raceway face, can significantly improve the raceway quality, and with its Roughness Surface on Control below 0.16 μ m, raceway circularity is controlled in the 1 μ m; In addition, the size scattered error to raceway behind the superfinishing raceway also makes moderate progress, thereby reduces the play scattered error of bulk article; In the finished product assembly process, use the special axis instrument to adjust the tolerance of size of assembly, play cooperates to obtain accurately, has increased the precision of bearing finished products.
The utility model effectively raises the assembly precision that planetary speed reducer is used gear-bearing, and increasing the service life reaches more than 50%, thereby has improved the stability of the use equipment such as speed reducer.
The utility model has disclosed a kind of planetary speed reducer gear-bearing, by reducing bearing outer ring, directly adopt planetary pinion as bearing outer ring, guarantee the load capacity of bearing, and overcome concentric error, adopted simultaneously rational internal structure design, can improve the assembly precision of bearing, increase the service life, apply to the gear train assembly of planetary speed reducer, can improve stability and the reliability of main process equipment.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. planetary speed reducer gear-bearing, it is characterized in that, comprise: outer ring, inner ring and rolling element, described outer ring is the gear outer ring, its outer surface is provided with the equally distributed gear teeth, and the internal surface of described outer ring is provided with smooth raceway, and the raceway both sides of described inner ring are equipped with rib, described rolling element solid matter is arranged in the raceway of described inner ring, and matches with the raceway of described outer ring.
2. planetary speed reducer gear-bearing according to claim 1, it is characterized in that, described gear-bearing also comprises a stop ring and two loose ribs, be provided with a locking groove in the middle of the raceway of described outer ring, be provided with described stop ring in the described locking groove, the bilateral symmetry of described stop ring is provided with described loose rib, described inner ring is to be arranged side by side by two sub-inner rings to form, described rolling element has two groups, solid matter is arranged in the raceway of two sub-inner rings respectively, and the inner plane of described rolling element matches with the another side of described loose rib.
3. planetary speed reducer gear-bearing according to claim 1 is characterized in that, the width of described inner ring is less than the width of described outer ring.
4. planetary speed reducer gear-bearing according to claim 1 is characterized in that, the roughness of described inner ring raceway and outer ring raceway is less than or equal to 0.16 μ m.
5. planetary speed reducer gear-bearing according to claim 1 is characterized in that, the circularity of described inner ring raceway and outer ring raceway is less than or equal to 1 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220376258 CN202833631U (en) | 2012-08-01 | 2012-08-01 | Gear bearing used for planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220376258 CN202833631U (en) | 2012-08-01 | 2012-08-01 | Gear bearing used for planetary reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833631U true CN202833631U (en) | 2013-03-27 |
Family
ID=47945344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220376258 Expired - Lifetime CN202833631U (en) | 2012-08-01 | 2012-08-01 | Gear bearing used for planetary reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833631U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767564A (en) * | 2012-08-01 | 2012-11-07 | 优必胜（苏州）轴承有限公司 | Gear bearing for planetary gear |
| CN104279297A (en) * | 2014-09-13 | 2015-01-14 | 常州澳德森江浪减速机有限公司 | Dust removing type speed reducer gear |
| CN106286584A (en) * | 2016-08-31 | 2017-01-04 | 瓦房店正达冶金轧机轴承有限公司 | A kind of four-row tapered roller bearing and the processing method of retainer |
-
2012
- 2012-08-01 CN CN 201220376258 patent/CN202833631U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767564A (en) * | 2012-08-01 | 2012-11-07 | 优必胜（苏州）轴承有限公司 | Gear bearing for planetary gear |
| CN104279297A (en) * | 2014-09-13 | 2015-01-14 | 常州澳德森江浪减速机有限公司 | Dust removing type speed reducer gear |
| CN106286584A (en) * | 2016-08-31 | 2017-01-04 | 瓦房店正达冶金轧机轴承有限公司 | A kind of four-row tapered roller bearing and the processing method of retainer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |