CN203979348U - The penetrable final drive assembly of truck improvement - Google Patents
The penetrable final drive assembly of truck improvement Download PDFInfo
- Publication number
- CN203979348U CN203979348U CN201420395335.3U CN201420395335U CN203979348U CN 203979348 U CN203979348 U CN 203979348U CN 201420395335 U CN201420395335 U CN 201420395335U CN 203979348 U CN203979348 U CN 203979348U
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- China
- Prior art keywords
- main shaft
- improvement
- cylindrical gears
- differential
- bearing
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of penetrable final drive assembly of truck improvement of improvement.It is characterized in that main shaft two end supports bearing is all set to tapered roller bearing, initiatively between cylindrical gears and the main shaft shaft shoulder, be provided with thrust washer, between differential gear and the main shaft shaft shoulder, be provided with thrust washer.The utility model is owing to having adopted the tapered roller bearing setting of a pair of horseback riding type on the main shaft of interaxial differential, not only born the axial force that initiatively cylindrical gears and driven cylindrical gear and planetary pinion, differential gear are offset not yet completely, and cause cross axle, planetary pinion and differential carrier structure to float between active cylindrical gears and differential gear, exempted the assembly technology of repeatedly adjusting backlash in assembly process, not only indirectly improve manufacturing efficiency, and relatively extended the working life of bearing.The utility model is rational in infrastructure, simple and direct, compact, is a kind of effective technological improvement.
Description
Technical field
The utility model relates to truck penetrable final drive assembly, especially about a kind of penetrable final drive assembly of improvement.
Background technique
At present, how truck ransaxle adds wheel limit epicyclic type device by central main reducing gear forms, wherein, there is irrational mix in central authorities used (through) main reducing gear: the supporting structure that 1) adopts deep groove ball bearing due to the main shaft two ends of interaxial differential, the axial force that the axial force that in its differential mechanism, active cylindrical gears and driven cylindrical gear produce and planetary pinion and differential gear produce can not be cancelled completely, cause the deep groove ball bearing at the main shaft two ends of supporting interaxial differential to bear axial force wherein, thereby cause the damage of the too early wearing and tearing of ball bearing and differential mechanism, 2) due to the restriction of interaxial differential form structure, in assembly process, must, through adjustment repeatedly, can obtain suitable differential gear backlash, 3) interaxial differential adopts splash system lubrication system because of front step bearing, therefore, because of lubricated insufficient too high defect with insufficient lubrication of interaxial differential running oil temperature that exists.
Model utility content
The purpose of this utility model, is for overcoming the irrational defect of existing truck penetrable final drive assembly interaxial differential supporting structure, and proposes a kind of penetrable final drive assembly of improvement.For realizing this object, adopt following technological scheme.A kind of penetrable final drive assembly of truck improvement, comprise main shaft and two end supports bearing thereof, active cylindrical gears, differential gear, gap bridge case lid, it is characterized in that main shaft two end supports bearing is all set to tapered roller bearing, initiatively between cylindrical gears and the main shaft shaft shoulder, be provided with thrust washer, between differential gear and the main shaft shaft shoulder, be provided with thrust washer; In gap bridge case lid shell body wall, be provided with oil leab, the oil inlet hole of oil leab is arranged on the garden Zhou Fangxiang of cylindrical gears, and oil outlet is arranged at the small end that approaches tapered roller bearing.
Press the model utility that this programme is implemented, owing to having adopted the tapered roller bearing setting of a pair of horseback riding type on the main shaft of interaxial differential, not only born the axial force that initiatively cylindrical gears and driven cylindrical gear and planetary pinion, differential gear are offset not yet completely, and cause cross axle, planetary pinion and differential carrier structure to float between active cylindrical gears and differential gear, exempted the assembly technology of repeatedly adjusting backlash in assembly process, comparatively speaking, indirectly improved manufacturing efficiency.The oil leab of gap bridge cover wall setting has not only been realized the effect that lubricant oil must be lubricated to the large end of roller from bearing roller small end, and has extended the working life of bearing.The utility model is rational in infrastructure, simple and direct, compact, is a kind of effective technological improvement.
Accompanying drawing explanation
Fig. 1 is the structural representation in a kind of embodiment of the utility model longitudinal section;
Fig. 2 is the interior TV structure schematic diagram of gap bridge case lid;
Fig. 3 is the part section structural representation of gap bridge case lid oil leab.
Embodiment
With regard to this embodiment, be described in further detail by reference to the accompanying drawings.In order to solve existing defect in existing truck main gearbox assembly---because the supports main shaft two ends of interaxial differential adopt the supporting structure of deep groove ball bearing, making it the axial force that the axial force of initiatively cylindrical gears and driven cylindrical gear generation and planetary pinion and differential gear produce can not be cancelled completely, and the deep groove ball bearing that causes supports main shaft two ends has been born axial force wherein, cause the too early wearing and tearing of ball bearing and differential mechanism and damage the working life that has also therefore affected bearing.The utility model is to be all provided with tapered roller bearing 2 and 11 at the support two ends of interaxial differential main shaft 1, the part axial force being produced to offset active cylindrical gears 3 and passive cylindrical gears 4, for the axial force producing between stronger counteracting differential gear 10 and planetary pinion 8, between active cylindrical gears 3 and the shaft shoulder of main shaft 1, be provided with thrust washer 13, between differential gear 10 and the shaft shoulder of main shaft 1, be also provided with thrust washer 9, with bear part remaining and axial force.For solving the front-end of spindle bearing of interaxial differential, adopt splash system lubrication system, and cause because lubricated insufficient existing running oil temperature is too high and the defect of insufficient lubrication, and for meeting the lubricating requirement of tapered roller bearing, in gap bridge case lid 14 inner walls, be provided with oil leab 140, the oil inlet hole 1400 of oil leab 140 is arranged on the garden Zhou Fangxiang of cylindrical gears 1, oil outlet 1401 is arranged at the small end that approaches tapered roller bearing 2, and so setting has just realized the effect that lubricant oil must be lubricated to the large end of roller from bearing roller small end.All the other component shown in figure are respectively, lining 5, inter-axle differential shell 6, cross axle 7, through shaft 12, gap bridge case lid 14, drive bevel gear 15.
Claims (2)
1. the penetrable final drive assembly of truck improvement, comprise main shaft and two end supports bearing thereof, active cylindrical gears, differential gear, gap bridge case lid, it is characterized in that main shaft two end supports bearing is all set to tapered roller bearing, initiatively between cylindrical gears and the main shaft shaft shoulder, be provided with thrust washer, between differential gear and the main shaft shaft shoulder, be provided with thrust washer.
2. by the penetrable final drive assembly of truck improvement described in claim 1, it is characterized in that passing a bridge in case lid shell body wall and be provided with oil leab, the oil inlet hole of oil leab is arranged on the garden Zhou Fangxiang of cylindrical gears, and oil outlet is arranged at the small end that approaches tapered roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420395335.3U CN203979348U (en) | 2014-07-17 | 2014-07-17 | The penetrable final drive assembly of truck improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420395335.3U CN203979348U (en) | 2014-07-17 | 2014-07-17 | The penetrable final drive assembly of truck improvement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979348U true CN203979348U (en) | 2014-12-03 |
Family
ID=51976794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420395335.3U Expired - Fee Related CN203979348U (en) | 2014-07-17 | 2014-07-17 | The penetrable final drive assembly of truck improvement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748622A (en) * | 2019-10-17 | 2020-02-04 | 一汽解放汽车有限公司 | Middle axle main reducer assembly with rear bevel gear clutch mechanism |
-
2014
- 2014-07-17 CN CN201420395335.3U patent/CN203979348U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748622A (en) * | 2019-10-17 | 2020-02-04 | 一汽解放汽车有限公司 | Middle axle main reducer assembly with rear bevel gear clutch mechanism |
| CN110748622B (en) * | 2019-10-17 | 2021-10-01 | 一汽解放汽车有限公司 | Middle axle main reducer assembly with rear bevel gear clutch mechanism |
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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: 20141203 Termination date: 20160717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |