CN203404331U - Axle differential assembly between wheels - Google Patents
Axle differential assembly between wheels Download PDFInfo
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- CN203404331U CN203404331U CN201320517416.1U CN201320517416U CN203404331U CN 203404331 U CN203404331 U CN 203404331U CN 201320517416 U CN201320517416 U CN 201320517416U CN 203404331 U CN203404331 U CN 203404331U
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- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to an axle differential assembly between wheels. The structure of the axle differential assembly between wheels is improved, a planetary gear of the axle differential assembly between wheels is improved, and therefore a spherical shim of a differential can be effectively prevented from being overworn, and the service life of the axle differential assembly between wheels is prolonged. The axle differential assembly between wheels comprises a differential shell, a universal joint pin, a half axle gear and the planetary gear, wherein the universal joint pin is arranged in the shell, the half axle gear and the planetary gear are meshed with each other, and the spherical shim is arranged between the planetary gear and the differential shell. The axle differential assembly between wheels is characterized in that the radius of curvature of each of the two contact conical surfaces on a back cone of the planetary gear is smaller than the radius of curvature of the indexing curved surface of the planetary gear. Preferably, the radius of curvature of the cross section of the spherical shim corresponds to the radius of curvature of each contact conical surface. The radius of curvature of each of the two contact conical surfaces on the back cone is 0.7-0.95 times that of the indexingcurved surface of the planetary gear.
Description
Technical field
The utility model relates to a kind of differential design, particularly a kind of improvement of vehicle bridge inter-wheel differential assembly.
Background technique
Existing automotive axle inter-wheel differential comprises differential carrier, is arranged on planetary pinion and cross axle in differential carrier, in order to reduce the friction between differential casing internal surface and planetary pinion, conventionally installs spherical pad between housing and planetary pinion additional.But due to this kind of planetary shape, between the back cone conical surface on this bevel gear and differential mechanism spherical pad, wear and tear very serious, if things go on like this, cause spherical pad broken invalid, affect inter-wheel differential lubrication effect.
Model utility content
For deficiency of the prior art, the utility model provides a kind of vehicle bridge inter-wheel differential assembly that improves structure, by the planetary pinion to wherein, improves, and can effectively avoid excessive wear differential mechanism spherical pad, improves its working life.
In order to address the above problem, this kind of vehicle bridge inter-wheel differential assembly, comprise: differential casing, the cross axle that is arranged on this enclosure interior and intermeshing differential gear and planetary pinion, between this planetary pinion and differential casing, be provided with spherical pad, it is characterized in that: the radius of curvature of two contact conical surfaces on this planetary back cone is all less than the radius of curvature of this planetary pinion reference surface.
Preferably, the radius of curvature in described spherical pad cross section is corresponding with the described radius of curvature that contacts the conical surface.
More preferably, the radius of curvature of two contact conical surfaces on described back cone is 0.7 to 0.95 times of radius of curvature of described planetary pinion reference surface.
The beneficial effects of the utility model are: by improving planetary gear construction, because the radius of curvature on this planetary pinion back cone working surface is less than the radius of curvature of this circular cone reference surface, planetary pinion back cone working surface contacts rather than face contact with spherical pad inner arc surface formation point, guarantee to be formed naturally between planetary pinion back cone working surface and spherical pad inner arc surface the surface of contact of no-float, can effectively avoid excessive wear differential mechanism spherical pad, improve its working life.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of vehicle bridge inter-wheel differential assembly of the present utility model;
Fig. 2 is the planetary sectional structure schematic diagram in the utility model;
Fig. 3 is the planetary structural principle schematic diagram in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Shown in Fig. 1, this kind of vehicle bridge inter-wheel differential assembly, comprise: differential casing 1, be arranged on this outside by dynamic bevel gear 6, the cross axle 4 that is arranged on enclosure interior and intermeshing differential gear 5 and planetary pinion 2, between this planetary pinion 2 and differential casing 1, be provided with spherical pad 3.
Shown in Fig. 2 and Fig. 3, this planetary pinion is eccentric planet gear, and the reference surface 12 of this cone gear has radius of curvature R<sub TranNum="72">2</sub>, two the contact conical surface 11 radius of curvature on back cone 1 are R<sub TranNum="73">1</sub>, R<sub TranNum="74">1</sub>be less than R<sub TranNum="75">2</sub>, the surface of contact on this back cone contacts with spherical pad.Preferably, in order to obtain better contact effect, the radius of curvature in described spherical pad cross section is corresponding with the described radius of curvature that contacts the conical surface.In addition the radius of curvature R of the contact conical surface 11,<sub TranNum="76">1</sub>radius of curvature R for circular cone reference surface 12<sub TranNum="77">2</sub>0.7 to 0.95 times, i.e. 0.7 * R<sub TranNum="78">2</sub>≤ R<sub TranNum="79">1</sub><0.95 * R<sub TranNum="80">2</sub>.Concrete, as shown in Figure 3, center of circle O represents the pitch cone of cone gear and the intersection point of gear gyration center, i.e. the standard pitch circle center of circle.O<sub TranNum="81">1</sub>for the radius of curvature on back cone is R<sub TranNum="82">1</sub>the center of circle of the contact conical surface 11, E<sub TranNum="83">1</sub>, E<sub TranNum="84">2</sub>for the offset distance of the eccentric spherical center of circle with respect to the standard pitch circle center of circle.Due to R<sub TranNum="85">1</sub>be less than R<sub TranNum="86">2</sub>, center of circle O and O<sub TranNum="87">1</sub>do not overlap, the actual reference surface 12 standard pitch circle centers of circle of having departed from this cone gear, the center of circle of the contact conical surface 11 of cone gear.
Change the common planetary pinion in this differential casing into eccentric structure, retain existing of spherical pad, cross axle requires on the poor shell of seat, and poor shell can be whole, can be also split, difference shell sphere is whole, and cross axle is exactly split; Poor shell sphere is split, and cross axle is whole.
It should be noted that; embodiment is only to the explanation of technical solutions of the utility model and explanation; should not be understood as the restriction to technical solutions of the utility model; any employing the technical solution of the utility model and only do local change, must fall in protection domain of the present utility model.
Claims (3)
1. a vehicle bridge inter-wheel differential assembly, comprise: differential casing, the cross axle that is arranged on this enclosure interior and intermeshing differential gear and planetary pinion, between this planetary pinion and differential casing, be provided with spherical pad, it is characterized in that: the radius of curvature of two contact conical surfaces on this planetary back cone is all less than the radius of curvature of this planetary pinion reference surface.
2. vehicle bridge inter-wheel differential assembly according to claim 1, is characterized in that: the radius of curvature in described spherical pad cross section is corresponding with the described radius of curvature that contacts the conical surface.
3. vehicle bridge inter-wheel differential assembly according to claim 1, is characterized in that: the radius of curvature of two contact conical surfaces on described back cone is 0.7 to 0.95 times of radius of curvature of described planetary pinion reference surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320517416.1U CN203404331U (en) | 2013-08-23 | 2013-08-23 | Axle differential assembly between wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320517416.1U CN203404331U (en) | 2013-08-23 | 2013-08-23 | Axle differential assembly between wheels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404331U true CN203404331U (en) | 2014-01-22 |
Family
ID=49940268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320517416.1U Expired - Fee Related CN203404331U (en) | 2013-08-23 | 2013-08-23 | Axle differential assembly between wheels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203404331U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179638A (en) * | 2014-03-19 | 2015-12-23 | 伊顿公司 | Non-synchronous Gear Meshing Events For Limited-slip Differentials |
| CN107882958A (en) * | 2017-11-25 | 2018-04-06 | 洛阳华冠齿轮股份有限公司 | A kind of new straight-tooth cone tooth spherical surface of planetary gear structure and machining method |
-
2013
- 2013-08-23 CN CN201320517416.1U patent/CN203404331U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179638A (en) * | 2014-03-19 | 2015-12-23 | 伊顿公司 | Non-synchronous Gear Meshing Events For Limited-slip Differentials |
| CN105179638B (en) * | 2014-03-19 | 2019-04-16 | 伊顿公司 | Non-synchronized gear engagement action for limited-slip differential |
| CN107882958A (en) * | 2017-11-25 | 2018-04-06 | 洛阳华冠齿轮股份有限公司 | A kind of new straight-tooth cone tooth spherical surface of planetary gear structure and machining method |
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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: 20140122 Termination date: 20190823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |