CN201925442U - Planetary gear transmission mechanism and fixed gear ring thereof - Google Patents
Planetary gear transmission mechanism and fixed gear ring thereof Download PDFInfo
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- CN201925442U CN201925442U CN2010206601574U CN201020660157U CN201925442U CN 201925442 U CN201925442 U CN 201925442U CN 2010206601574 U CN2010206601574 U CN 2010206601574U CN 201020660157 U CN201020660157 U CN 201020660157U CN 201925442 U CN201925442 U CN 201925442U
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Abstract
The utility model provides a planetary gear transmission mechanism and a fixed gear ring thereof. The fixed gear ring of the planetary gear transmission mechanism comprises an outer ring, an inner ring and an elastic deformation part for allowing the outer ring to be connected with the inner ring. The planetary gear transmission mechanism comprises a sun gear, a planetary gear arranged around the sun gear, and the fixed gear ring.
Description
Technical field
The utility model relates to mechanical field, more specifically, relates to a kind of planetary gear mechanism and fixed gear ring thereof.
Background technique
The planetary pinion transmission is one of principal mode in the mechanical transmission, adapt to powerful characteristics, usually adopt a plurality of planet wheel shuntings, adopt gear ring fixedly generation is counter and turn round, in high-power transmission and the demanding machinery of power to weight ratio such as helicopter gearing down, high-power turbo oar engine gearing down, used widely.In order to guarantee all the carrying improving the efficiency of planetary pinion transmission of a plurality of planet wheel driving components, the adjusting of fixed gear ring is required high, so fixed gear ring becomes one of key technology that adopts the planetary pinion drive mechanism.
At present, in order to realize as much as possible all carrying, the planetary system fixed gear ring need float, and normally the various forms of all carrying such as thin-walled gear ring have appearred in the wall thickness of attenuate fixed gear ring, to reduce flexural rigidity as far as possible.The thinnest part of thin-walled gear ring is near 2mm, and like this, not only the requirement on machining accuracy to fixed gear ring is very high, and it is limited all to carry accommodation, and because gear ring needs an end to fix, can only realize partial floating, has restricted the bearing capacity of planetary system.In addition, because fixed gear ring adopts rigid construction, in the gear engagement process, vibration noise is bigger.
The model utility content
The utility model aims to provide a kind of planetary gear mechanism and fixed gear ring thereof, and is very high with the fixed gear ring requirement on machining accuracy that solves prior art, all carry the problem that accommodation is limited and vibrating noise is bigger.
According to an aspect of the present utility model, a kind of fixed gear ring of planetary gear mechanism is provided, fixed gear ring comprises outer ring and inner ring, and the resiliently deformable portion that connects outer ring and inner ring.
Further, resiliently deformable portion is a rubber layer.
Further, the axial cross section of rubber layer is bending shape.
Further, the axial cross section of rubber layer is V-shaped.
Further, resiliently deformable portion comprises a plurality of rubber layers and is folded in tinsel between every adjacent two rubber layers.
Further, the axial cross section of rubber layer and tinsel all is bending shape.
Further, the axial cross section of rubber layer and tinsel is all V-shaped, and rubber layer is two-layer.
Further, it is protruding that the inboard of outer ring forms V-ring, and it is recessed that the outside of inner ring forms V-ring.
According to another aspect of the present utility model, a kind of planetary gear mechanism also is provided, comprising: sun gear, the planet wheel that is provided with around sun gear, and above-mentioned fixed gear ring.
According to the technical solution of the utility model, owing to adopted fixed gear ring to comprise outer ring and inner ring, between outer ring and inner ring, be connected with the technological scheme of resiliently deformable portion, flexible fixed gear ring in flexural rigidity that has reduced fixed gear ring and radial rigidity and fixed gear ring have reliable torque transmission capacity, and do not need fixed gear ring is processed into thin-walled gear ring, thereby the equal loading capability and the bearing capacity of planet wheel spare have been improved, and fixed gear ring can provide bigger vibration damping under the effect of resiliently deformable portion, has reduced vibration and noise in the gear engagement process.Thereby the fixed gear ring requirement on machining accuracy that has overcome prior art is very high, all carry the problem that accommodation is limited and vibrating noise is bigger, reached to prolong the fixed gear ring effect in working life.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 has schematically shown the structure according to the fixed gear ring of planetary gear mechanism of the present utility model;
Fig. 2 has schematically shown the local structure for amplifying according to the fixed gear ring of planetary gear mechanism of the present utility model.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Referring to Fig. 1 and Fig. 2, show structure according to the fixed gear ring of a kind of planetary gear mechanism of the present utility model, as shown in the figure, this fixed gear ring 3 is set in the outer ring of planet wheel 2 and matches with planet wheel 2, and at least one planet wheel 2 is arranged on the periphery of sun gear 1.Because of the connection of sun gear, planet wheel in the planetary gear mechanism relation being set is not inventive point of the present utility model, does not repeat them here.
By among Fig. 1 and Fig. 2 as can be seen, in inner ring 31 and the outer ring 32 that fixed gear ring 3 comprises, and the resiliently deformable portion 4 that connects inner ring 31 and outer ring 32, fixed gear ring 3 compound moldings.Like this, fixed gear ring according to a kind of planetary gear mechanism of the present utility model, under the effect of resiliently deformable portion 4, fixed gear ring 3 precision machining can be become thin-walled gear ring can make the flexural rigidity of fixed gear ring 3 and radial rigidity lower, so that fixed gear ring 3 can change with the running that adapts to each planet wheel in the planetary system operation process in plastic deformation, improve the equal loading capability of planet wheel spare, guaranteed the reliable torque transmission capacity of fixed gear ring simultaneously, improved the bearing capacity of planetary system.Again because the material characteristic of resiliently deformable portion 4 own can provide bigger vibration damping, with respect to the fixed gear ring of the rigid construction of prior art, fixed gear ring structure of the present utility model greatly reduces the vibration and the noise of planetary system.
Preferably, resiliently deformable portion 4 is made by rubber, and cost is lower like this.For adapting to the Environmental Conditions of planetary gear mechanism, oil resistant rubber is preferably selected by resiliently deformable portion 4, with the corrosion and damage of prolongation resiliently deformable portion, thus the working life of having improved fixed gear ring 3.
Can there be numerous embodiments in resiliently deformable portion, for example in a kind of unshowned mode, the axial cross section of rubber layer 4 is bending shape further, higher with the join strength that reaches between damping effect preferably and the fixed gear ring each several part, rubber layer 4 is not easy to be subjected to axial force in fixed gear ring 3 using processs and peels off the damage that causes fixed gear ring 3 from fixed gear ring 3.Preferably, rubber layer is a V-arrangement, is convenient to centering like this.It is protruding for example V-ring can be arranged in the inboard of the outer ring 32 of fixed gear ring 3, the arranged outside forming V-shape ring of inner ring 31 is recessed, then inner ring and outer ring are placed in the specialized mould, reserve the space of rubber layer 4, by injection molding way is combined rubber layer 4 and outer ring 32, inner ring 31, thereby compound molding fixed gear ring 3, so that rapid processing goes out fixed gear ring 3.
By the another kind of mode of execution that it can also be seen that resiliently deformable portion 4 among Fig. 1 and Fig. 2, resiliently deformable portion 4 comprises a plurality of rubber layers 41, is folded with sheet metal 42 between every two adjacent rubber layers 41.By a plurality of rubber layers 41 and sheet metal 42 formed resiliently deformable portion 4 is set at interval like this, can reach better damping effect and make resiliently deformable portion 4 better, the working life of further having improved fixed gear ring 3 with the join strength of fixed gear ring 3 other parts.Preferably, sheet metal 42 adopts the endurance sheet metal, to adapt to the complicated runnability of planetary gear mechanism.Preferably, shown in Fig. 1 and Fig. 2, resiliently deformable portion 4 comprises two-layer rubber layer 41, is provided with a V-arrangement sheet metal in two-layer rubber layer 41 therebetween, and this mode of execution is simple to be made easily.
In sum, the fixed gear ring according to planetary gear mechanism of the present utility model has the following advantages: 1) improved planet wheel and all carried, made planetary system have advantages of high bearing capacity; 2) owing to cancel thin-walled gear ring, reduce the difficulty of processing and the precision of fixed gear ring, can add cost of production by the reduction machine; 3) have bigger vibration damping, can significantly reduce the vibration and the noise of planetary gear mechanism.
The utility model also provides a kind of planetary gear mechanism, comprising: sun gear 1, the planet wheel 2 that is provided with around described sun gear 1, and according to fixed gear ring 3 provided by the utility model.
Be preferred embodiment of the present utility model only below, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. the fixed gear ring of a planetary gear mechanism is characterized in that, described fixed gear ring (3) comprises outer ring (32) and inner ring (31), and the resiliently deformable portion (4) that connects described outer ring (32) and inner ring (31).
2. fixed gear ring according to claim 1 is characterized in that, described resiliently deformable portion (4) is a rubber layer.
3. fixed gear ring according to claim 2 is characterized in that the axial cross section of described rubber layer is bending shape.
4. fixed gear ring according to claim 3 is characterized in that the axial cross section of described rubber layer is V-shaped.
5. fixed gear ring according to claim 1 is characterized in that, described resiliently deformable portion (4) comprises a plurality of rubber layers (41) and is folded in tinsel (42) between every adjacent two described rubber layers.
6. fixed gear ring according to claim 5 is characterized in that, described rubber layer (41) all is bending shape with the axial cross section of described tinsel (42).
7. fixed gear ring according to claim 6 is characterized in that, described rubber layer (41) is all V-shaped with the axial cross section of described tinsel (42), and described rubber layer (41) is two-layer.
8. fixed gear ring according to claim 1 is characterized in that, it is protruding that the inboard of described outer ring (32) forms V-ring, and it is recessed that the outside of described inner ring (31) forms V-ring.
9. a planetary gear mechanism is characterized in that, comprising: sun gear, the planet wheel that is provided with around described sun gear, and each described fixed gear ring in the claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206601574U CN201925442U (en) | 2010-12-14 | 2010-12-14 | Planetary gear transmission mechanism and fixed gear ring thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206601574U CN201925442U (en) | 2010-12-14 | 2010-12-14 | Planetary gear transmission mechanism and fixed gear ring thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201925442U true CN201925442U (en) | 2011-08-10 |
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ID=44429291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206601574U Expired - Lifetime CN201925442U (en) | 2010-12-14 | 2010-12-14 | Planetary gear transmission mechanism and fixed gear ring thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201925442U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712694A (en) * | 2013-12-11 | 2015-06-17 | 中国航空工业第六一八研究所 | Silicone rubber metal shock absorber |
| CN105134909A (en) * | 2015-08-08 | 2015-12-09 | 常州市武进金城齿轮有限公司 | Noise-reduction gear |
| CN106560634A (en) * | 2015-10-06 | 2017-04-12 | 麦特达因国际德国有限公司 | Gear Assembly |
| CN107131284A (en) * | 2017-06-09 | 2017-09-05 | 南京航空航天大学 | A kind of flexible gear ring and the epicyclic train with flexible gear ring |
| CN109353353A (en) * | 2018-10-08 | 2019-02-19 | 株洲时代新材料科技股份有限公司 | A kind of train motor suspension suspending method |
-
2010
- 2010-12-14 CN CN2010206601574U patent/CN201925442U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712694A (en) * | 2013-12-11 | 2015-06-17 | 中国航空工业第六一八研究所 | Silicone rubber metal shock absorber |
| CN105134909A (en) * | 2015-08-08 | 2015-12-09 | 常州市武进金城齿轮有限公司 | Noise-reduction gear |
| CN106560634A (en) * | 2015-10-06 | 2017-04-12 | 麦特达因国际德国有限公司 | Gear Assembly |
| CN107131284A (en) * | 2017-06-09 | 2017-09-05 | 南京航空航天大学 | A kind of flexible gear ring and the epicyclic train with flexible gear ring |
| CN109353353A (en) * | 2018-10-08 | 2019-02-19 | 株洲时代新材料科技股份有限公司 | A kind of train motor suspension suspending method |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110810 |