CN203363057U - Planet gear with improved structure - Google Patents
Planet gear with improved structure Download PDFInfo
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- CN203363057U CN203363057U CN 201320357152 CN201320357152U CN203363057U CN 203363057 U CN203363057 U CN 203363057U CN 201320357152 CN201320357152 CN 201320357152 CN 201320357152 U CN201320357152 U CN 201320357152U CN 203363057 U CN203363057 U CN 203363057U
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- teeth
- oil storage
- planet gear
- improved structure
- center hole
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Abstract
The utility model belongs to the technical field of differential accessories and particularly relates to a planet gear with an improved structure. The planet gear with the improved structure solves the technical problem that planet gears in the prior art are not reasonable enough in design and short in service lives. The planet gear with the improved structure comprises a body with a plurality of teeth, and the axial center of the body is provided with a center hole. The planet gear with the improved structure is characterized in that the teeth are oblique teeth, the body is provided with an annular shoulder located at the position of an orifice at one end of the center hole, and a powder metallurgy bushing with one end abutting against the annular shoulder is arranged in the center hole and provided with an oil storage structure. Compared with the prior art, the planet gear with the improved structure has the advantages of being reasonable in design and simple to install and dismantle, having oil storage effect, being good in self-lubricating effect, improving working stability of a differential and conforming to the development trend of the current social technology.
Description
Technical field
The utility model belongs to differential mechanism accessory technical field, especially relates to a kind of structure-improved planetary pinion.
Background technique
The power of motor car engine, through clutch, speed changer, transmission shaft, finally is sent to ransaxle and distributes to semiaxis driving wheel in left and right again, and on this power transmission approach, ransaxle is last assembly, and its critical piece is retarder and differential mechanism.Automobile differential is the main part of ransaxle.Its effect is exactly in the semiaxis transferring power of both sides, allows the both sides semiaxis with different rotating speed rotations, meets two sidecar wheels and does equidistantly not travel with the form of pure rolling as far as possible, reduces the friction on tire and ground.In order to guarantee the working stability of differential mechanism, for this reason, people have carried out long-term exploration, have proposed solution miscellaneous.
For example, Chinese patent literature discloses a kind of Diffenential mechanism for planet gear with outside gear [application number: 87212908], structure characteristic is that the planetary pinion shaft diameter of bearing is arranged is 0.60-0.75 times of planetary pinion standard pitch diameter to coupling, use thrust roller bearing in the middle of on three fulcrum sun wheel shaft, there is baffle ring on planet wheel shaft, sun wheel shaft is the circular cone spindle nose, solved the prior art middle (center) bearing fragile, maintenance load is large, the problem of inconvenient maintenance, there is the maintenance of being beneficial to, easily processing, the advantage of raising bearing capacity.In addition, Chinese patent literature also discloses a kind of inter-tooth planet differential gearing [application number: 89219828.1], setting up axial point support unit, planet carrier output mechanism employing planet carrier and axle discrete parts between sun wheel shaft the inner and planetary wheel carrier is assembled, have circumferential groove and bottom land radial direction through hole on interior toothed ring gear, utilize the external tooth engagement that lubricant oil is injected in chamber automatically.This two schemes has improved the working stability of differential mechanism to a certain extent, but all at least there is following shortcoming in the planetary pinion of this two schemes: certainly moisten weak effect, virtually shortened the working life of planetary pinion and planet wheel shaft, in addition, the working stability that it has reduced differential mechanism virtually, do not meet the development trend of current social technology.
The model utility content
The purpose of this utility model is for the problems referred to above, provides a kind of from moistening effective and can improving the structure-improved planetary pinion of the clutch speed of differential mechanism working stability.
For achieving the above object, the utility model has adopted following technical proposal: this structure-improved planetary pinion comprises the body with some teeth, be provided with center hole in the body axial centre, it is characterized in that, described teeth are helical teeth, be provided with the annular convex shoulder that is positioned at center hole one stomidium mouth place on body, be provided with an end and be resisted against the powder metallurgy lining on annular convex shoulder in center hole, be provided with oil-bearing structure on powder metallurgy lining.Obviously, the utility model design is more reasonable, mounts and dismounts all fairly simplely, and it has the effect of oil storage, certainly moistens effectively, has improved the working stability of differential mechanism, meets the trend of current social technical development.
In above-mentioned structure-improved planetary pinion, described oil-bearing structure comprises the spiral oil storage tank that is arranged on the powder metallurgy lining inwall.
As another scheme, in above-mentioned structure-improved planetary pinion, described oil-bearing structure comprises the some oil storage apertures that are arranged on the powder metallurgy lining inwall.
In above-mentioned structure-improved planetary pinion, described oil storage hole diameter is 1mm～3mm.
In above-mentioned structure-improved planetary pinion, described spiral oil storage tank groove depth is 0.3mm, and groove width is 0.5mm.
In above-mentioned structure-improved planetary pinion, at the two ends of each teeth, be respectively equipped with chamfer surface.
Compared with prior art, the planetary advantage of this structure-improved is: it is more reasonable to design, and mounts and dismounts all fairly simple, and it has the effect of oil storage, effective from profit, improved the working stability of differential mechanism, meet the trend of current social technical development.
The accompanying drawing explanation
Fig. 1 is embodiment's one structural representation that the utility model provides.
Fig. 2 is embodiment's two structural representations that the utility model provides.
In figure, body 1, teeth 11, center hole 12, powder metallurgy lining 2, spiral oil storage tank 21, oil storage aperture 22, annular convex shoulder a.
Embodiment
Be below the specific embodiment by reference to the accompanying drawings of model utility, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
As shown in Figure 1, this structure-improved planetary pinion comprises the body 1 with some teeth 11, two ends in each teeth 11 are respectively equipped with chamfer surface, be provided with center hole 12 in body 1 axial centre, optimized project, the teeth 11 here are helical teeth, are provided with the annular convex shoulder a that is positioned at center hole 12 1 stomidium mouth places on body 1, be provided with an end and be resisted against the powder metallurgy lining 2 on annular convex shoulder a in center hole 12, on powder metallurgy lining 2, be provided with oil-bearing structure.Obviously, the present embodiment design is more reasonable, mounts and dismounts all fairly simplely, and it has the effect of oil storage, certainly moistens effectively, has improved the working stability of differential mechanism, meets the trend of current social technical development.
Specifically, the oil-bearing structure of the present embodiment comprises the spiral oil storage tank 21 that is arranged on powder metallurgy lining 2 inwalls; These spiral oil storage tank 21 groove depths are 0.3mm, and groove width is 0.5mm.
Embodiment two
As shown in Figure 2, the present embodiment is basic identical with embodiment one structure and principle, and different place is: oil-bearing structure comprises the some oil storage apertures 22 that are arranged on powder metallurgy lining 2 inwalls; These oil storage aperture 22 diameters are 2mm.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more been used the terms such as body 1, teeth 11, center hole 12, powder metallurgy lining 2, spiral oil storage tank 21, oil storage aperture 22, annular convex shoulder a, do not get rid of the possibility of using other term.Using these terms is only in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (6)
1. a structure-improved planetary pinion, comprise the body (1) with some teeth (11), be provided with center hole (12) in body (1) axial centre, it is characterized in that, described teeth (11) are helical teeth, be provided with the annular convex shoulder (a) that is positioned at center hole (12) one stomidium mouth places on body (1), be provided with an end and be resisted against the powder metallurgy lining (2) on annular convex shoulder (a) in center hole (12), on powder metallurgy lining (2), be provided with oil-bearing structure.
2. structure-improved planetary pinion according to claim 1, is characterized in that, described oil-bearing structure comprises the spiral oil storage tank (21) that is arranged on powder metallurgy lining (2) inwall.
3. structure-improved planetary pinion according to claim 1, is characterized in that, described oil-bearing structure comprises the some oil storage apertures (22) that are arranged on powder metallurgy lining (2) inwall.
4. structure-improved planetary pinion according to claim 3, is characterized in that, described oil storage aperture (22) diameter is 1mm～3mm.
5. structure-improved planetary pinion according to claim 2, is characterized in that, described spiral oil storage tank (21) groove depth is 0.3mm, and groove width is 0.5mm.
6. according to the described structure-improved planetary pinion of claim 1-5 any one, it is characterized in that, at the two ends of each teeth (11), be respectively equipped with chamfer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320357152 CN203363057U (en) | 2013-06-19 | 2013-06-19 | Planet gear with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320357152 CN203363057U (en) | 2013-06-19 | 2013-06-19 | Planet gear with improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203363057U true CN203363057U (en) | 2013-12-25 |
Family
ID=49810827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320357152 Expired - Fee Related CN203363057U (en) | 2013-06-19 | 2013-06-19 | Planet gear with improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203363057U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291884A (en) * | 2013-06-19 | 2013-09-11 | 孙维 | Improved structure planetary gear |
| CN107869567A (en) * | 2017-11-22 | 2018-04-03 | 株洲市九洲传动机械设备有限公司 | A kind of planetary gear and its design method provided with the micro- cone cylinder endoporus of multistage |
-
2013
- 2013-06-19 CN CN 201320357152 patent/CN203363057U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291884A (en) * | 2013-06-19 | 2013-09-11 | 孙维 | Improved structure planetary gear |
| CN107869567A (en) * | 2017-11-22 | 2018-04-03 | 株洲市九洲传动机械设备有限公司 | A kind of planetary gear and its design method provided with the micro- cone cylinder endoporus of multistage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20140619 |
|
| EXPY | Termination of patent right or utility model |