CN201636206U - Deferential combined bearing - Google Patents
Deferential combined bearing Download PDFInfo
- Publication number
- CN201636206U CN201636206U CN 201020152514 CN201020152514U CN201636206U CN 201636206 U CN201636206 U CN 201636206U CN 201020152514 CN201020152514 CN 201020152514 CN 201020152514 U CN201020152514 U CN 201020152514U CN 201636206 U CN201636206 U CN 201636206U
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- CN
- China
- Prior art keywords
- differential
- bearing
- rotating shaft
- ring
- gear
- 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 - Lifetime
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C21/00—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
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- Rolling Contact Bearings (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model discloses a deferential combined bearing which comprises a bearing bush and a differential mechanism, wherein the outer surface of the bearing bush is tightly matched with the inner wall of a bearing seat, a rotating shaft is rotatably matched with the inner wall of the center hole of the bearing bush, the differential mechanism comprises a differential ring, an outer ring and a gear fixed at the end part of the neck of the rotating shaft, the differential ring is in clearance fit with the rotating shaft and the bearing bush, the outer wall of the outer ring is tightly matched with the inner wall of the bearing seat, the inner wall of the outer ring is provided with an inner gear ring, the outer end surface of the differential ring is provided with at least three reduction gears distributed evenly and circumferentially, the outer end surface of each reduction gear is fixedly connected with that of the differential ring, each reduction gear is meshed with the inner gear ring and the gear, and a rolling body is arranged between the differential ring and the outer ring. The deferential combined bearing has long service life and strong load-carrying capacity and is suitable for high-speed bearings.
Description
Technical field
The utility model relates to a kind of bearing, specifically is a kind of differential type combination bearing.
Background technique
Bearing is to go up the conventional machinery part of revolving meber in order to support axle journal or axle, can be divided into rolling bearing and sliding bearing according to the working principle of bearing.Sliding bearing is widely used in fields such as industrial production, farm machinery, automobile, electric tool.The sliding bearing of prior art, its structure generally comprises bearing shell, described bearing shell outer surface and bearing support drive fit, the center hole of bearing shell is used to install rotating shaft, described rotating shaft and bearing shell center hole Spielpassung, and described rotating shaft is provided with the helical oil groove, oil groove is behind logical lubricant oil, can be full of lubricant film between bearing shell and rotating shaft, this lubricant film not only plays the shock resistance effect, and can reduce the friction between bearing shell and the rotating shaft.
This sliding bearing of prior art is when rated speed turns round, relative rotation speed between bearing shell and the rotating shaft is the rated speed of sliding bearing, when the rotating speed of rotating shaft surpasses the rated speed of sliding bearing, relative rotation speed between bearing shell and the rotating shaft is higher, bearing shell can be crossed thermal burn and can not work on, thereby has shortened the working life of sliding bearing.This sliding bearing has limited the rotating speed of rotating shaft, but the speed-raising of automobile, train at present, and the speed-raising of industrial machinery, even comprise speed-raising of high-speed computer driving mechanism etc., life-span and suitable high rotating speed rotating shaft to sliding bearing have all proposed very strict requirement, and traditional this sliding bearing will be not suitable for the demand of high rotating speed machinery, high-speed computer driving mechanism etc.
In addition, because rotating shaft cooperates with the bearing shell rotation, the load of rotating shaft will directly be transferred on the bearing shell.If when the load that bearing shell bore load comparatively concentrated or rotating shaft can not be assigned on the bearing shell uniformly, bearing shell may break or wear and tear because stress concentrates, the load-carrying ability of bearing is lower like this, and working life is shorter.
The model utility content
The technical problems to be solved in the utility model is, overcomes the defective of above prior art, provides a kind of long service life, load-carrying ability strong, and is fit to the differential type combination bearing of high rotating speed rotating shaft.
Technical solution of the present utility model is, a kind of differential type combination bearing with following structure is provided: it comprises bearing shell, the inwall drive fit of the outer surface of described bearing shell and bearing support, the inwall of rotating shaft and bearing shell center hole is rotatably assorted, it also comprises differential attachment, described differential attachment comprises differential circle, outer ring and the gear that is fixed on the axle journal end of rotating shaft, described differential circle and rotating shaft and the equal Spielpassung of bearing shell, the inwall drive fit of the outer wall of described outer ring and bearing support, the inwall of described outer ring is provided with ring gear, the exterior edge face of described differential circle is provided with at least three along the equally distributed reduction gear of circumference, described reduction gear is fixedlyed connected with the exterior edge face of differential circle, described reduction gear all with ring gear and gear engagement, be provided with rolling element between described differential circle and the outer ring.
After adopting above structure, the utility model differential type combination bearing compared with prior art, have the following advantages: owing between differential circle and outer ring, be provided with rolling element, between bearing shell and rotating shaft, be provided with differential attachment, when rotating, rotating shaft drives the differential attachment running, this differential attachment has carried out classification with rotating shaft with respect to the rotating speed between the bearing shell, the rotating speed that is rotating shaft is after passing to differential attachment, the rotating speed of differential attachment is far below the rotating speed of rotating shaft, so the rotating speed of the relative bearing shell of differential attachment is far below the rotating speed of rotating shaft.Under the situation of bearing rated speed, can improve the rotating speed of rotating shaft greatly like this, so this differential type combination bearing can be fit to the requirement to bearing such as high rotating speed machinery, high-speed computer driving mechanism.In addition, under the same rotational speed of rotating shaft, therefore the relative rotation speed that bearing shell bore, has reduced the wearing and tearing of bearing shell far below the rotating speed that bearing shell bore of traditional bearing, has improved the working life of bearing.Moreover, the load that rotating shaft is born is not directly transferred to above the bearing shell, but by being delivered to above the bearing shell equably again after the uniform distribution of differential attachment, thereby make the load of rotating shaft carry out the secondary uniform distribution, reduce rotating shaft load distribution inequality and caused bearing bush abrasion, further prolonged the working life of bearing; In addition, the use of rolling element has not only improved the bearing power of bearing, and the load that rotating shaft can be passed to differential attachment be distributed in uniformly with the friction tight outer ring of bearing support on.
As a kind of improvement, the outer surface of described differential circle is provided with the helical oil groove.And also be provided with the helical oil groove in the rotating shaft, this helical oil groove can make things convenient for entering of lubricant oil when differential attachment rotates, make between differential attachment and the bearing shell and between differential attachment and the rotating shaft to be full of lubricant film, not only strengthened the impact resistance of bearing, and reduced friction.
As a kind of improvement, be provided with seal ring I between the inner of described bearing shell and the differential circle, be provided with seal ring II between described rotating shaft and the differential circle, the design of seal ring I and seal ring II can effectively stop the excessive of lubricant film.Thereby the Security and the reliability of this sliding bearing have been improved.
Description of drawings
Fig. 1 is the Facad structure schematic representation of the utility model differential type combination bearing.
Fig. 2 is the A-A cross-sectional view of the utility model differential type combination bearing in Fig. 1.
As shown in the figure:
1, bearing shell, 2, rotating shaft, 3, bearing support, 4, differential circle, 5, gear, 6, reduction gear, 7, ring gear, 8, rolling element, 9, seal ring II, 10, the outer ring, 11, seal ring I, 12, oil groove.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1 and Figure 2;
The utility model differential type combination bearing, it comprises bearing shell 1, the inwall drive fit of the outer surface of described bearing shell 1 and bearing support 3, rotating shaft 2 is rotatably assorted with the inwall of bearing shell 1 center hole, it also comprises differential attachment, described differential attachment comprises differential circle 4, outer ring 10 and the gear 5 that is fixed on the axle journal end of rotating shaft 2, described differential circle 4 and rotating shaft 2 and bearing shell 1 equal Spielpassung, the inwall drive fit of the outer wall of described outer ring 10 and bearing support 3, the inwall of described outer ring 10 is provided with ring gear 7, the exterior edge face of described differential circle 4 is provided with at least three along the equally distributed reduction gear 6 of circumference, described reduction gear 6 is fixedlyed connected with the exterior edge face of differential circle 4, and described reduction gear 6 all meshes with ring gear 7 and gear 5.Be provided with rolling element 8 between described differential circle 4 and the outer ring 10.
Be equipped with helical oil groove 12 on the outer surface of described differential circle 4 and rotating shaft 2.
Be provided with seal ring I 11 between the inner of described bearing shell 1 and the differential circle 4, be provided with seal ring II 9 between described rotating shaft 2 and the differential circle 4.
Claims (3)
1. differential type combination bearing, it comprises bearing shell (1), the inwall drive fit of the outer surface of described bearing shell (1) and bearing support (3), rotating shaft (2) is rotatably assorted with the inwall of bearing shell (1) center hole, it is characterized in that: it also comprises differential attachment, described differential attachment comprises differential circle (4), outer ring (10) and the gear (5) that is fixed on the axle journal end of rotating shaft (2), described differential circle (4) and rotating shaft (2) and the equal Spielpassung of bearing shell (1), the inwall drive fit of the outer wall of described outer ring (10) and bearing support (3), the inwall of described outer ring (10) is provided with ring gear (7), the exterior edge face of described differential circle (4) is provided with at least three along the equally distributed reduction gear of circumference (6), described reduction gear (6) is fixedlyed connected with the exterior edge face of differential circle (4), described reduction gear (6) all meshes with ring gear (7) and gear (5), is provided with rolling element (8) between described differential circle (4) and outer ring (10).
2. differential type combination bearing according to claim 1 is characterized in that: the outer surface of described differential circle (4) is provided with helical oil groove (12).
3. differential type combination bearing according to claim 1 is characterized in that: be provided with seal ring I (11) between the inner of described bearing shell (1) and the differential circle (4), be provided with seal ring II (9) between described rotating shaft (2) and the differential circle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020152514 CN201636206U (en) | 2010-04-01 | 2010-04-01 | Deferential combined bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020152514 CN201636206U (en) | 2010-04-01 | 2010-04-01 | Deferential combined bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636206U true CN201636206U (en) | 2010-11-17 |
Family
ID=43080699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020152514 Expired - Lifetime CN201636206U (en) | 2010-04-01 | 2010-04-01 | Deferential combined bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636206U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994204A (en) * | 2014-05-23 | 2014-08-20 | 西安交通大学 | Water-lubricated sliding bearing |
| CN104976234A (en) * | 2015-06-30 | 2015-10-14 | 国家电网公司 | Bearing seal |
| CN110285140A (en) * | 2019-05-14 | 2019-09-27 | 绍兴上虞元彬自动化有限公司 | A kind of durable type composite bush that revolving speed is adaptive |
| CN110848249A (en) * | 2019-12-09 | 2020-02-28 | 左大虎 | High-speed bearing |
-
2010
- 2010-04-01 CN CN 201020152514 patent/CN201636206U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994204A (en) * | 2014-05-23 | 2014-08-20 | 西安交通大学 | Water-lubricated sliding bearing |
| CN104976234A (en) * | 2015-06-30 | 2015-10-14 | 国家电网公司 | Bearing seal |
| CN110285140A (en) * | 2019-05-14 | 2019-09-27 | 绍兴上虞元彬自动化有限公司 | A kind of durable type composite bush that revolving speed is adaptive |
| CN110848249A (en) * | 2019-12-09 | 2020-02-28 | 左大虎 | High-speed bearing |
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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: 20101117 |
|
| CX01 | Expiry of patent term |