CN203560405U - Low-offset-distance, high-torque and low-noise main speed reducer assembly - Google Patents
Low-offset-distance, high-torque and low-noise main speed reducer assembly Download PDFInfo
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- CN203560405U CN203560405U CN201320755502.6U CN201320755502U CN203560405U CN 203560405 U CN203560405 U CN 203560405U CN 201320755502 U CN201320755502 U CN 201320755502U CN 203560405 U CN203560405 U CN 203560405U
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- bevel gear
- distance
- low
- speed reducer
- main speed
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Abstract
The utility model discloses a low-offset-distance, high-torque and low-noise main speed reducer assembly which comprises a driving bevel gear, a bearing base, a main speed reducer shell body, a differential mechanism and a driven bevel gear assembly. The offset distance between a mounting center hole of the driving bevel gear and a main speed reducer shell center is 31.7-31.8mm * 44.4-44.5mm, and the diameters of two bearing supporting parts of the driving bevel gear are 68.2-68.4mm and 67.9-68.1mm respectively. According to the main speed reducer assembly, low-offset-distance design is used, the included angle of a transmission shaft can be reduced, space arrangement of the transmission shaft can be promoted, noise and abnormal sound can be well lowered, the diameters of the two bearing supporting parts of the driving bevel gear are similar to the diameter of a polished shaft, gear strength can be improved, and gear output torque can be increased.
Description
Technical field
The utility model relates to automobile main reducer field, specifically a kind of little offset distance, high pulling torque, low noise main gearbox assembly.
Background technique
Existing motorbus vehicle bridge, main subtract assembly main driven gear and adopts full depth tooth more, its output torque reach more than 40000N.m seldom, and the offset distance size at the relative final drive casing of drive bevel gear mounting center center is larger.Adopt the main gearbox assembly of this state, offset distance causes more greatly transmission shaft difficulty in installation and layout, and causes the angle of transmission shaft excessive, can main driven gear be produced and be impulsed, thereby cause main reducing gear resonance abnormal sound; The common drive bevel gear that simultaneously adopts conventional machining process, Gear Processing precision is low, and gear noise is high; Two of gear sections of bearings positions are that multidiameter shaft and size differ larger in addition, cause the strength of gear teeth to weaken, and moment of torsion reduces.And this time little offset distance, high pulling torque, the low noise main gearbox assembly of exploitation have solved the problems referred to above, be applicable to the large-scale palace car of 11-12m.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of little offset distance, high pulling torque, low noise main gearbox assembly, meet the output torque of the 43000N.m of 11-12m motorbus needs, and can reduce the angle of transmission shaft, guarantee the smooth running of active and passive gear, reduce noise.
The technical solution of the utility model is:
A kind of little offset distance, high pulling torque, low noise main gearbox assembly, include drive bevel gear, bearing support, bevel housing, differential mechanism and driven wheel of differential assembly; The transverse horizontal distance at described relative final drive casing center, drive bevel gear mounting center hole is 31.7-31.8mm, and the longitudinally vertical distance at relative final drive casing center, drive bevel gear mounting center hole is 44.4-44.5mm; The diameter at two sections of bearings positions of described drive bevel gear is respectively 68.2-68.4mm and 67.9-68.1mm.
The transverse horizontal distance at the relative final drive casing center, drive bevel gear mounting center hole of described bevel housing is 31.75mm, and the longitudinally vertical distance at relative final drive casing center, drive bevel gear mounting center hole is 44.45mm.
The diameter at two sections of bearings positions of described drive bevel gear is respectively 68.3mm and 68mm.
Advantage of the present utility model:
(1), the transverse horizontal at the relative final drive casing in the utility model drive bevel gear mounting center hole center distance is 31.75mm, the longitudinally vertical distance at relative final drive casing center, drive bevel gear mounting center hole is 44.45mm, adopt little offset distance design, substitute existing large offset distance (45mmX58mm) structure, can reduce the angle of transmission shaft, the space that is conducive to transmission shaft is arranged, is more conducive to reduce noise and abnormal sound;
(2), the diameter at two sections of bearings positions of the utility model drive bevel gear is respectively 68.3mm and 68mm, is close to optical axis, can improve the strength of gear teeth, increases the moment of torsion of the output of gear.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model final drive casing and drive bevel gear position relationship.
Fig. 3 is structural representation of the present utility model.
Embodiment
See Fig. 1, a kind of little offset distance, high pulling torque, low noise main gearbox assembly, include drive bevel gear 1, bearing support 2, bevel housing 3, differential mechanism and driven wheel of differential assembly 4; Wherein, the transverse horizontal at drive bevel gear 1 relative final drive casing 3 centers, mounting center hole distance be 31.75mm, drive bevel gear 1 relative final drive casing 3 centers, mounting center hole longitudinally vertically apart from seeing Fig. 2 for 44.45mm(); The diameter at two sections of bearings positions 11,12 of drive bevel gear 1 is respectively 68.3mm and 68mm(is shown in Fig. 2).
Claims (3)
1. little offset distance, high pulling torque, a low noise main gearbox assembly, includes drive bevel gear, bearing support, bevel housing, differential mechanism and driven wheel of differential assembly; It is characterized in that: the transverse horizontal distance at described relative final drive casing center, drive bevel gear mounting center hole is 31.7-31.8mm, the longitudinally vertical distance at relative final drive casing center, drive bevel gear mounting center hole is 44.4-44.5mm; The diameter at two sections of bearings positions of described drive bevel gear is respectively 68.2-68.4mm and 67.9-68.1mm.
2. the little offset distance of one according to claim 1, high pulling torque, low noise main gearbox assembly, it is characterized in that: the transverse horizontal distance at the relative final drive casing center, drive bevel gear mounting center hole of described bevel housing is 31.75mm, the longitudinally vertical distance at relative final drive casing center, drive bevel gear mounting center hole is 44.45mm.
3. the little offset distance of one according to claim 1, high pulling torque, low noise main gearbox assembly, is characterized in that: the diameter at two sections of bearings positions of described drive bevel gear is respectively 68.3mm and 68mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755502.6U CN203560405U (en) | 2013-11-27 | 2013-11-27 | Low-offset-distance, high-torque and low-noise main speed reducer assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755502.6U CN203560405U (en) | 2013-11-27 | 2013-11-27 | Low-offset-distance, high-torque and low-noise main speed reducer assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560405U true CN203560405U (en) | 2014-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320755502.6U Expired - Fee Related CN203560405U (en) | 2013-11-27 | 2013-11-27 | Low-offset-distance, high-torque and low-noise main speed reducer assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822754A (en) * | 2016-05-19 | 2016-08-03 | 中国第汽车股份有限公司 | Speed reducer shell structure for reducing radiation noise of drive axle |
-
2013
- 2013-11-27 CN CN201320755502.6U patent/CN203560405U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822754A (en) * | 2016-05-19 | 2016-08-03 | 中国第汽车股份有限公司 | Speed reducer shell structure for reducing radiation noise of drive axle |
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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: 20140423 Termination date: 20161127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |