CN201487138U - Front driving axle bevel gear pair for 200HP tractors - Google Patents
Front driving axle bevel gear pair for 200HP tractors Download PDFInfo
- Publication number
- CN201487138U CN201487138U CN2009201288237U CN200920128823U CN201487138U CN 201487138 U CN201487138 U CN 201487138U CN 2009201288237 U CN2009201288237 U CN 2009201288237U CN 200920128823 U CN200920128823 U CN 200920128823U CN 201487138 U CN201487138 U CN 201487138U
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- tooth
- bevel gear
- gear pair
- depth
- differential
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Abstract
The utility model discloses a front driving axle bevel gear pair for 200HP tractors, which comprises a driving bevel gear and a driven bevel gear; the front driving axle bevel gear pair increases the reference diameter of the driving and driven bevel gears, thus achieving the effects of enhancing transverse module and increasing face width of tooth, and simultaneously, both the full-tooth depth of gear tooth and working height of tooth are increased; speed ratio (gear ratio) is changed to better adapt to field work in China; by means of the increase of overlap coefficients, transmission becomes more stable while contact stress is reduced; in addition, the carburized case depth of the gears is adjusted, thus improving the abrasion resistance of products, achieving the purpose of prolonging the service life of products and reducing noise simultaneously.
Description
Technical field
The utility model relates to the vehicle transmission field of components, particularly a kind of front drive axle cone gear pair that is used for the 200HP tractor.
Background technique
Along with the progress of science and technology and the development of society, farm mechanization obtains further popularizing, the tractor of the big-and-middle horsepower of China almost is import entirely in one's early years, in recent years, maturation along with a collection of domestic manufacturing enterprise, the nationalization level of production of tractor front drive axle obtains bigger raising, has also emerged a collection of new product.
Hypoid cone gear spoke is one of essential parts of 200HP tractor, but the gear teeth of existing product calculate the change transverse stress and contact stress is bigger than normal, add the complicated topographical conditions in area, China mountain area, thereby cause the easy premature wear of this kind gear pair, working life is not high, long-term frequent replacing not only causes bigger inconvenience to the user, has also caused bigger economic loss simultaneously; In addition, also there is the higher problem of noise in this kind product in application.
The model utility content
In view of this, the utility model provides a kind of front drive axle cone gear pair of the 200HP of being used for tractor, by the improvement to the associated gear parameter, to overcome the deficiency that existing product exists.
The purpose of this utility model provides a kind of front drive axle cone gear pair of the 200HP of being used for tractor, comprises drive bevel gear and driven wheel of differential, and its tooth portion parameter is:
The standard pitch diameter d of described drive bevel gear is φ 82.5mm, and addendum coefficient is 1.205, and addendum is 9.04mm, and the face width of tooth is 40mm;
The standard pitch diameter D of described driven wheel of differential is φ 270mm, and addendum coefficient is 0.49, addendum 3.67mm, and the face width of tooth is 40mm;
The tooth profile parameter of gear pair is:
Sideshake is 0.20~0.28mm, and Working depth is 12.71mm, whole depth coefficient 1.882, and whole depth 14.11mm, helix angle is 35 °;
Further, the pressure angle of described driven wheel of differential is 20 °;
Further, described tooth profile parameter also comprises:
The tooth ratio is 11: 36, and modulus is 7.5m,
Described sideshake is 0.20mm;
Further, be provided with carburized case on the surface of described drive bevel gear and driven wheel of differential, described case depth is 1.2~1.5mm.
The beneficial effects of the utility model are:
1. the utility model has increased the standard pitch diameter of master and slave trailing wheel, thereby reach transverse module is increased, the effect that the face width of tooth increases, and the full-depth tooth that has increased the gear teeth simultaneously is dark, has increased Working depth; Make transmission more steady by increasing overlap coefficient, contact stress is descended;
2. the carburized layer depth of gear is adjusted, thereby improved the wear resistance of product, reached and prolong the product purpose in working life, reduced noise simultaneously.
Other advantages of the present utility model, target, to set forth in the following description to a certain extent with feature, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can realize and obtain by following specification and claims.
Description of drawings
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing the utility model is described in further detail, wherein:
Fig. 1 is the structural representation of drive bevel gear;
Fig. 2 is the structural representation of driven wheel of differential;
Fig. 3 be Fig. 2 along A to schematic representation.
Embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment only for the utility model is described, rather than in order to limit protection domain of the present utility model.
As shown in the figure, the front drive axle cone gear pair that is used for the 200HP tractor of the present utility model comprises drive bevel gear and driven wheel of differential, and its tooth portion parameter is:
The standard pitch diameter d of drive bevel gear is φ 82.5mm, and addendum coefficient is 1.205, and addendum is 9.04mm, and the face width of tooth is 40mm;
The standard pitch diameter D of driven wheel of differential is φ 270mm, and addendum coefficient is 0.49, addendum 3.67mm, and the face width of tooth is 40mm, pressure angle is 20 °.
The tooth profile parameter of gear pair is:
Sideshake is 0.20mm, and Working depth is 12.71mm, whole depth coefficient 1.882, and whole depth 14.11mm, helix angle is 35 °, and the tooth ratio is 11: 36, and modulus is 7.5m.
For further improving wear resistance, the surface of drive bevel gear and driven wheel of differential is provided with carburized case, and described case depth is 1.2mm.
For increasing the working life of the gear teeth, the utility model has also adopted stress shot blasting technology that the flank of tooth is handled, and carries out gear lapping, thereby makes the product operation more steady, and noise is lower.
Through testing surface, the domestic steyr automobile drive axle bevel gear stand life test that adopts this product is from 3.7 * 10
5Inferiorly increased by 5.2 * 10
5Inferior, improvement effect is very significant.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. be used for the front drive axle cone gear pair of 200HP tractor, comprise drive bevel gear and driven wheel of differential, it is characterized in that: its tooth portion parameter is:
The standard pitch diameter d of described drive bevel gear is φ 82.5mm, and addendum coefficient is 1.205, rises to be that 9.04mm, the face width of tooth are 40mm;
The standard pitch diameter D of described driven wheel of differential is φ 270mm; Addendum coefficient is 0.49, addendum 3.67mm; The face width of tooth is 40mm;
The tooth profile parameter of gear pair is:
Sideshake is 0.20~0.28mm, and Working depth is 12.71mm, and whole depth coefficient is 1.882, and whole depth 14.11mm, swing angle are 35 °.
2. the front drive axle cone gear pair that is used for the 200HP tractor according to claim 1, it is characterized in that: the pressure angle of described driven wheel of differential is 20 °.
3. the front drive axle cone gear pair that is used for the 200HP tractor according to claim 1, it is characterized in that: described tooth profile parameter also comprises:
The tooth ratio is 11: 36, and modulus is 7.5m;
Described sideshake is 0.20mm.
4. the front drive axle cone gear pair that is used for the 200HP tractor according to claim 1 is characterized in that: be provided with carburized case on the surface of described drive bevel gear and driven wheel of differential, described case depth is 1.2~1.5mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009201288237U CN201487138U (en) | 2009-09-11 | 2009-09-11 | Front driving axle bevel gear pair for 200HP tractors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009201288237U CN201487138U (en) | 2009-09-11 | 2009-09-11 | Front driving axle bevel gear pair for 200HP tractors |
Publications (1)
Publication Number | Publication Date |
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CN201487138U true CN201487138U (en) | 2010-05-26 |
Family
ID=42426017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2009201288237U Expired - Fee Related CN201487138U (en) | 2009-09-11 | 2009-09-11 | Front driving axle bevel gear pair for 200HP tractors |
Country Status (1)
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CN (1) | CN201487138U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120247619A1 (en) * | 2010-03-30 | 2012-10-04 | Nippon Steel Corporation | Carburized steel and its process of manufacture |
-
2009
- 2009-09-11 CN CN2009201288237U patent/CN201487138U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120247619A1 (en) * | 2010-03-30 | 2012-10-04 | Nippon Steel Corporation | Carburized steel and its process of manufacture |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20100911 |