CN202158087U - Cylinder roller bearing transmission assembly - Google Patents
Cylinder roller bearing transmission assembly Download PDFInfo
- Publication number
- CN202158087U CN202158087U CN2011202283613U CN201120228361U CN202158087U CN 202158087 U CN202158087 U CN 202158087U CN 2011202283613 U CN2011202283613 U CN 2011202283613U CN 201120228361 U CN201120228361 U CN 201120228361U CN 202158087 U CN202158087 U CN 202158087U
- Authority
- CN
- China
- Prior art keywords
- roller bearing
- bearing transmission
- outer ring
- wearing layer
- transmission combination
- 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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- Rolling Contact Bearings (AREA)
Abstract
The utility model provides a cylinder roller bearing transmission assembly comprising a cylinder roller bearing and a shaft, wherein the cylinder roller bearing comprises a roller, a retainer and an outer ring; the surface of the shaft is provided with a wear-resisting layer; and the roller contacts the wear-resisting layer in a rolling way. By the cylinder roller bearing transmission assembly, the weight of a transmission system of a helicopter can be reduced and the system structure is simplified.
Description
Technical field
The utility model relates to the technical field of transmission system in the aeroengine, in particular to a kind of roller bearing transmission combination.
Background technique
The bearing transmission combination is the key component in the Helicopter Transmission System.In order to obtain bigger carrying capacity, need reduce the weight of component as far as possible.Existing roller bearing transmission combination is equipped with inner ring, yet, for fixing inner ring need use a lot of auxiliary components, be unfavorable for alleviating of transmission system overall weight, and too much part also can increase system instability.Thereby existing bearing transmission combination is inappropriate in the transmission system that is used in helicopter.
The model utility content
The utility model aims to provide a kind of roller bearing transmission combination, and to locate required auxiliary component many and transmission system weight that bring is big, the problem of complex structure, poor stability to solve roller bearing in the existing technology.
To achieve these goals; According to the utility model a kind of roller bearing transmission combination is provided, has comprised roller bearing and axle, wherein: roller bearing comprises: roller, retainer, outer ring; The surface of axle is provided with wearing layer, roller rolls contact wearing layer.
Further, wearing layer is any one in carburized case, nitriding layer or the electrodeposited coating.
Further, axle is processed for low carbon steel, and wearing layer is a carburized case.
Further, the outer ring also is provided with flange, and flange is provided with a plurality of through holes on outer ring one end extends radially outwardly it.
Further, through hole extending axially along the outer ring.
Further, the hole is a circular hole.
The technique effect of the utility model is:
The bearing transmission combination that the utility model provides replaces the inner ring of traditional roller bearing with the wearing layer on the axle, and reducing the transmission system overall weight, simplified structure has improved the stability of transmission system.
Description of drawings
The Figure of description that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is that the part master of the utility model preferred embodiment axis looks schematic representation;
Fig. 2 is a roller bearing plan view schematic representation in the utility model preferred embodiment; And
Fig. 3 is the A-A line cross-sectional schematic of Fig. 2.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the utility model.
Please combine with reference to figure 1～3, the roller bearing transmission combination of the utility model comprises axle 2 and the roller bearing that is sheathed on the axle 2.Roller bearing comprises: roller 1, retainer 3, outer ring 4.
Axle 2 surfaces are provided with wearing layer 21, and roller 1 rolls and is contacted with wearing layer 21.Wearing layer 21 is through conventional chemical or material processed means, like acquisitions such as painting of coating, carburizings.When used axle 2 materials are low carbon steel, adopt the method for carburizing or carburizing nitrogen to obtain wearing layer 21.Used various auxiliary components when wearing layer 21 being set substituting bearing inner races and can reduce bearing fixing are like lining, pad, back-up ring etc.Because intensity, hardness and the wear resistance of wearing layer 21 reach the requirement of traditional roller bearing inner ring, are able to the working life of axle 2 prolong.
One end radially outward of outer ring 4 is convexly equipped with a flange 5, and a plurality of through holes 6 are set on the flange 5, and through hole 64 axially runs through flange 5 along the outer ring.Be installed in the corresponding transmission system through through hole 6 roller bearings.Adopt such structure to make bearing location easy, only need the outer ring of rigid bearing, can be with whole bearing fixing in transmission system, and then improve the stability of system works.
In other embodiments, used roller bearing outer ring 4 can not be provided with flange 5.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (6)
1. roller bearing transmission combination; Comprise roller bearing and axle (2); Wherein, Roller bearing comprises: roller (1), retainer (3), outer ring (4) is characterized in that: the surface of said axle (2) is provided with wearing layer (21), and said roller (1) rolls and contacts said wearing layer (21).
2. roller bearing transmission combination according to claim 1 is characterized in that: said wearing layer (21) is any one in carburized case, nitriding layer or the electrodeposited coating.
3. roller bearing transmission combination according to claim 1 is characterized in that: said axle (2) is processed for low carbon steel, and said wearing layer (21) is a carburized case.
4. roller bearing transmission combination according to claim 1 is characterized in that: said outer ring (4) also are provided with flange (5), and (4) extend radially outwardly said flange (5) along the outer ring; A plurality of through holes (6) are set on the said flange (5).
5. roller bearing transmission combination according to claim 4 is characterized in that: said through hole (6) extends axially along said outer ring (4).
6. roller bearing transmission combination according to claim 5 is characterized in that: said hole (6) are circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202283613U CN202158087U (en) | 2011-06-30 | 2011-06-30 | Cylinder roller bearing transmission assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202283613U CN202158087U (en) | 2011-06-30 | 2011-06-30 | Cylinder roller bearing transmission assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202158087U true CN202158087U (en) | 2012-03-07 |
Family
ID=45765727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202283613U Expired - Lifetime CN202158087U (en) | 2011-06-30 | 2011-06-30 | Cylinder roller bearing transmission assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202158087U (en) |
-
2011
- 2011-06-30 CN CN2011202283613U patent/CN202158087U/en not_active Expired - Lifetime
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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: 20120307 |
|
| CX01 | Expiry of patent term |