CN202451744U - Bevel gear wheel and vehicle bridge interaxle differential adopting same - Google Patents
Bevel gear wheel and vehicle bridge interaxle differential adopting same Download PDFInfo
- Publication number
- CN202451744U CN202451744U CN2012200911078U CN201220091107U CN202451744U CN 202451744 U CN202451744 U CN 202451744U CN 2012200911078 U CN2012200911078 U CN 2012200911078U CN 201220091107 U CN201220091107 U CN 201220091107U CN 202451744 U CN202451744 U CN 202451744U
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- China
- Prior art keywords
- cone
- gear
- bevel gear
- gear wheel
- conical surface
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- Expired - Fee Related
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Abstract
The utility model relates to a planetary bevel gear wheel applied to a vehicle differential, before assembly, the bevel gear wheel needs no wear-resisting treatment on the conical surface of a back cone, nor a wear-resistant gasket arranged between the bevel gear wheel and an assembled piece, and an oil groove structure is not needed to be additionally arranged on the conical surface of the back cone. The bevel gear wheel provided by the utility model includes the back cone, a tip cone, a front cone and a taper hole, and is characterized in that the curvature radius of the connecting conical surface of the back cone is smaller than that of the reference surface of the bevel gear wheel, and preferably, the curvature radius of the connecting conical surface is 0.80 to 0.99 times of that of the reference surface of the bevel gear wheel. The utility model further provides a vehicle bridge interaxle differential.
Description
Technical field
The utility model relates to a kind of gear, relates in particular to a kind of planetary conical cone gear that is applied in the differential for vehicles.
Background technique
At present; Cone gear has been widely used in industrial every field, and manufacturing and assembling form are varied, for example a kind of planetary conical cone gear that is applied to axle differential; Common planetary conical cone gear is that sphere contacts with making between the accessory mutually; In use there is the situation of tangible lack of lubrication in this structure, causes a series of deficiencies such as gear wear aggravation, oily temperature rise, part life reduction, thereby influences the usability of product.
The way that generally addresses this is that is on the sphere of cone gear, to make tank structure, perhaps cone gear with make the anti-attrition pad mutually between the accessory, and the sphere of phase accessory is done Wear-resistant Treatment.This mode is cost height but also complex structure not only, makes troubles for assembling and maintenance.
Practical content
To deficiency of the prior art; The utility model aims to provide a kind of cone gear structure; So this cone gear neither need be Wear-resistant Treatment on the back cone conical surface before assembling; Also not need cone gear with wear-resistant gasket is set between the accessory mutually, and need not the extra tank structure that is provided with on the back cone conical surface.
In order to address the above problem, the utility model provides a kind of cone gear, comprising: back cone, addendum cone, inner cone and taper hole, this cone gear is characterised in that: the radius of curvature of the contact conical surface of said back cone is less than the radius of curvature of this cone gear reference surface.Preferably, the radius of curvature of the said contact conical surface is 0.5 to 0.95 times of radius of curvature of circular cone reference surface.
The utility model also provides a kind of vehicle bridge interaxial differential, comprising: the differential mechanism casing, be provided with main shaft in this differential mechanism casing, and main shaft is provided with the planetary conical cone gear, and this planetary conical cone gear meshes with active cylindrical gears and differential gear respectively; The back cone conical surface of this planetary conical cone gear and the inwall of differential mechanism casing amplexiform, and it is characterized in that: said planetary conical cone gear is above-mentioned cone gear.
Adopted the cone gear of this kind structure; Because the radius of curvature on this back cone working surface is less than the radius of curvature of this circular cone reference surface; Conical surface on the back cone working surface contacts rather than the face contact with workpiece arc surface formation point; So do not need in advance on the back cone conical surface so Wear-resistant Treatment, also not need cone gear with wear-resistant gasket is set between the accessory mutually.Gear is through long-time running, and this some contact becomes regional contact, has been formed naturally the surface of contact of no-float between conical surface on the back cone working surface and the workpiece arc surface.Owing to leave the slit between conical surface on the back cone working surface and the workpiece arc surface, do not need to offer separately oil groove in addition, reduced labor content and processing cost.This structure can obviously be improved lubrication state, reduces wearing and tearing, reduces heating, improves the working life of part, is a kind of useful improvement.
Description of drawings
Fig. 1 is the cone gear structural representation in the utility model.
Fig. 2 is the cone gear schematic diagram in the utility model.
Fig. 3 is the structural representation that the vehicle bridge interaxial differential of the cone gear in the utility model is installed.
Embodiment
Below in conjunction with accompanying drawing the utility model is done explanation further.
In conjunction with Fig. 1 and Fig. 2; The utility model is based on a kind of spur bevel gear structure; This gear comprises: back cone 1, addendum cone 2, inner cone 3 and taper hole 4, and the reference surface 12 of this cone gear has radius of curvature R 2, and the contact conical surface 11 radius of curvature on the back cone 1 are R1; R1 is less than R2, and the surface of contact on this back cone contacts with workpiece.Preferably, in order to obtain better contact effect, the radius of curvature R 1 of the contact conical surface 11 is 0.8 to 0.99 times of radius of curvature R 2 of circular cone reference surface 12, i.e. 0.8*R2＜=R1＜0.99*R2.As can beappreciated from fig. 2, the gear back cone is an eccentric sphere.Center of circle O representes the pitch cone of cone gear and the intersection point of gear gyration center, i.e. the standard pitch circle center of circle.O1 is that the radius of curvature on the back cone 1 is the center of circle of the contact conical surface 11 of R1, and E1, E2 are the offset distance of the eccentric sphere center of circle with respect to the standard pitch circle center of circle.Because R1 is less than R2, center of circle O does not overlap with O1, 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.
As shown in Figure 3, the vehicle bridge interaxial differential of the utility model comprises: main shaft 3, fore bearing 4,5, four planetary conical cone gears 6 of active cylindrical gears, differential mechanism casing 7, cross axle 8, back differential gear 9 and rear bearing 10.Be provided with main shaft 3 in this differential mechanism casing, this planetary conical cone gear 6 meshes with active cylindrical gears 5 and differential gear 9 respectively; The back cone conical surface of this planetary conical cone gear 6 and the inwall of differential mechanism casing amplexiform; When this planet cone gear is applied to the vehicle bridge interaxial differential; Transmission of power is such: power passes to cross axle 8 by main shaft 1; Cross axle drives planetary pinion 6 and rotates around main-shaft axis, thereby gives initiatively cylindrical gears 5 and back differential gear 9 with transmission of power, and whole differential mechanism is by fore bearing 4 and rear bearing 10 supportings.Point contact rather than face contacts because the conical surface on the back cone working surface forms with the differential mechanism casing inner wall, so just do not need in advance doing Wear-resistant Treatment on the back cone conical surface, also not need cone gear with wear-resistant gasket is set between the accessory mutually.Gear is through long-time running, and this some contact becomes regional contact, has been formed naturally the surface of contact of no-float between conical surface on the back cone working surface and the differential mechanism casing inner wall.Owing to leave the slit between conical surface on the back cone working surface and the differential mechanism casing inner wall, do not need to offer separately oil groove in addition, reduced labor content and processing cost.This structure can obviously be improved lubrication state, reduces wearing and tearing, reduces heating, improves the working life of part, is a kind of useful improvement.
Claims (3)
1. cone gear, comprising: back cone (1), addendum cone (2), inner cone (3) and taper hole (4), this cone gear is characterised in that: the radius of curvature (R1) of the contact conical surface (11) of said back cone (1) is less than the radius of curvature (R2) of this cone gear reference surface (12).
2. cone gear according to claim 1 is characterized in that: the radius of curvature (R1) of the said contact conical surface (11) is 0.8 to 0.99 times of the radius of curvature (R2) of circular cone reference surface (12).
3. vehicle bridge interaxial differential comprises: differential mechanism casing (7), be provided with main shaft (3) in this differential mechanism casing, main shaft (3) is provided with planetary conical cone gear (6), this planetary conical cone gear (6) respectively with active cylindrical gears (5) and differential gear (9) engagement; The back cone conical surface of this planetary conical cone gear (6) and the inwall of differential mechanism casing amplexiform, and it is characterized in that: said planetary conical cone gear (6) is claim 1 or 2 described cone gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200911078U CN202451744U (en) | 2012-03-13 | 2012-03-13 | Bevel gear wheel and vehicle bridge interaxle differential adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200911078U CN202451744U (en) | 2012-03-13 | 2012-03-13 | Bevel gear wheel and vehicle bridge interaxle differential adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451744U true CN202451744U (en) | 2012-09-26 |
Family
ID=46867610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200911078U Expired - Fee Related CN202451744U (en) | 2012-03-13 | 2012-03-13 | Bevel gear wheel and vehicle bridge interaxle differential adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451744U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134912A (en) * | 2015-09-28 | 2015-12-09 | 苏州市海神达机械科技有限公司 | Bevel gear |
| 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 |
| US10309511B2 (en) | 2016-05-16 | 2019-06-04 | Musashi Seimitsu Industry Co., Ltd. | Support structure for rotating member |
-
2012
- 2012-03-13 CN CN2012200911078U patent/CN202451744U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134912A (en) * | 2015-09-28 | 2015-12-09 | 苏州市海神达机械科技有限公司 | Bevel gear |
| US10309511B2 (en) | 2016-05-16 | 2019-06-04 | Musashi Seimitsu Industry Co., Ltd. | Support structure for rotating member |
| DE102017208057B4 (en) | 2016-05-16 | 2024-05-08 | Musashi Seimitsu Industry Co., Ltd. | Support structure for rotating element |
| 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: 20120926 Termination date: 20210313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |