CN201198893Y - Double-middle shaft helical teeth speed variator - Google Patents
Double-middle shaft helical teeth speed variator Download PDFInfo
- Publication number
- CN201198893Y CN201198893Y CNU2008200292565U CN200820029256U CN201198893Y CN 201198893 Y CN201198893 Y CN 201198893Y CN U2008200292565 U CNU2008200292565 U CN U2008200292565U CN 200820029256 U CN200820029256 U CN 200820029256U CN 201198893 Y CN201198893 Y CN 201198893Y
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- CN
- China
- Prior art keywords
- main
- odd
- box
- shaft
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Structure Of Transmissions (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model, belonging to the field of transmission used for automobile main/auxiliary box structure, provides a dual middle shaft oblique transmission. In order to reinforce the bearing capability of the transmission further and reduce the noise, the transmission comprises a main box and an auxiliary box; the main box is internally provided with a main-box main shaft and two main-box middle shafts; the auxiliary box comprises an auxiliary-box main shaft and two auxiliary-box middle shafts, wherein, an engaging gear between the main-box main shaft and the two main-box middle shafts is an oblique gear; the engaging gear between the auxiliary-box main shaft and the two auxiliary-box middle shafts is an oblique gear.
Description
Technical field
The utility model belongs to the speed changer field of automobile major-minor box structure, particularly a kind of pair of jack shaft helical teeth speed changer.
Background technique
In automobile heavy-duty transmission field, main what use is many gears of major-minor box structure speed changer, and wherein the speed changer of two jack shaft structures has plurality of advantages such as power dividing and bearing capacity are strong.Existing pair of jack shaft major-minor case speed changer comprises main tank and odd-side, has main tank main shaft and two main tank jack shafts in the main tank, and odd-side comprises odd-side main shaft and two odd-side jack shafts.This twin countershaft transmission is when power dividing, countershaft-gear is stressed to have only 1/2 of single countershaft transmission, can satisfy basic demand though use the straight-tooth transmission, but development along with technology and society, usage requirement to the speed changer each side is also improving constantly, particularly bearing capacity and noise are had higher requirement, therefore, existing straight-tooth speed changer can not satisfy the requirement of future development fully because of himself shortcoming.
Summary of the invention
Problem to be solved in the utility model is that the twin countershaft transmission to existing major-minor box structure is improved, and two jack shaft helical teeth speed changers that a kind of bearing capacity is stronger, noise is littler are provided.
The technological scheme that addresses the above problem is: the two jack shaft helical teeth speed changers that provided comprise main tank and odd-side, have main tank main shaft and two main tank jack shafts in the main tank, and odd-side comprises odd-side main shaft and two odd-side jack shafts; Improvements of the present utility model are that the engaging gear between main tank main shaft and two the main tank jack shafts is a helical gear, and the engaging gear between odd-side main shaft and two the odd-side jack shafts is a helical gear.
Major-minor case of the present utility model uses the helical teeth transmission not only can strengthen the bearing capacity of speed changer simultaneously, and can make gear engagement more steady, thereby reduces vibration and mesh impact, has satisfied the requirements at the higher level of following car load to environment and travelling comfort aspect.In addition, the minimum number of teeth that undercut does not take place owing to helical gear is few than the minimum teeth number of spur gear, thereby can make the structure of speed changer compact more.
Description of drawings
Fig. 1 is an embodiment's of the utility model a structural representation.
Embodiment
Below in conjunction with accompanying drawing content of the present utility model is described in detail.
As shown in Figure 1, automotive transmission has main tank 1 and odd-side 2, is provided with main tank main shaft 11 and two main tank jack shafts 12 in the main tank 1, is provided with odd-side main shaft 21 and two odd-side jack shafts 22 in the odd-side 2.Actuation gear 31 on the input shaft 3 often meshes with first gear 13 on the main tank jack shaft 12, and each the gear driving gear 14 on the main tank jack shaft 12 and each shift gear 15 of main tank main shaft are meshed, and wherein one group of engaging gear has only drawn among the figure.Driving gear 16 on the main tank main shaft and odd-side countershaft drive gear 23 often mesh, and odd-side jack shaft 22 is provided with a tooth 24, and this tooth 24 and odd-side reduction gear 25 often mesh.The end, front and back of main tank jack shaft 12 and odd-side jack shaft 22 is installed in (tapered roller bearing of the main tank jack shaft that only drawn among the figure) on the tapered roller bearing 4, and adjusts bearing clearance with spacer respectively.Gear on above-mentioned major and minor case main shaft and the jack shaft all adopts helical teeth.
The transmission process of this example is: power is by input shaft 3 inputs, drive main tank countershaft drive gear 13 through input shaft actuation gear 31, countershaft drive gear 13 drives jack shafts 12 rotations, and power is passed to each shift gear 15 on the main shaft 11 by the gear driving gear 14 on the jack shaft.When needs are put into gear, stir the synchronizer 5 (also can be sliding sleeve) of purpose gear by operating mechanism, make this shift gear related with main tank main shaft 11, power is imported odd-side 2.When hanging direct high, make main tank main shaft and input shaft 3 direct correlation by handling synchronizer 5, then the power of input shaft 3 inputs directly imports odd-side 2 into by main tank main shaft 11.If when needing the odd-side variable block, stir odd-side synchronizer 26 (also can be sliding sleeve) by operating mechanism, make odd-side reduction gear 25 related with odd-side main shaft 21, at this moment, drive odd-side jack shaft 22 by the driving gear on the main tank main shaft 16 by odd-side countershaft drive gear 23, axle tooth 24 on the jack shaft drives odd-side reduction gear 25, and the odd-side reduction gear drives odd-side main shaft 21, outputs power.When odd-side was hung top gear, under the control of operating mechanism, main tank main shaft 11 was related with odd-side main shaft 21 by odd-side synchronizer 26, and power is directly through the output of odd-side main shaft.
Claims (2)
1. two jack shaft helical teeth speed changers, comprise main tank (1) and odd-side (2), have main tank main shaft (11) and two main tank jack shafts (12) in the main tank, odd-side comprises odd-side main shaft (21) and two odd-side jack shafts (22), it is characterized in that the engaging gear between said main tank main shaft (11) and two the main tank jack shafts (12) is a helical gear, the engaging gear between odd-side main shaft (21) and two the odd-side jack shafts (22) is a helical gear.
2. speed changer according to claim 1 is characterized in that the end, front and back of said main tank jack shaft (12) and odd-side jack shaft (22) is installed on the tapered roller bearing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200292565U CN201198893Y (en) | 2008-05-30 | 2008-05-30 | Double-middle shaft helical teeth speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200292565U CN201198893Y (en) | 2008-05-30 | 2008-05-30 | Double-middle shaft helical teeth speed variator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201198893Y true CN201198893Y (en) | 2009-02-25 |
Family
ID=40450048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200292565U Expired - Lifetime CN201198893Y (en) | 2008-05-30 | 2008-05-30 | Double-middle shaft helical teeth speed variator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201198893Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734441A (en) * | 2012-06-27 | 2012-10-17 | 中国重汽集团济南动力有限公司 | Novel dual-intermediate shaft gearbox |
| CN103453085A (en) * | 2012-06-01 | 2013-12-18 | 赛玛特传动技术(北京)有限公司 | Gear case device |
| CN109630673A (en) * | 2019-01-31 | 2019-04-16 | 郑州智驱科技有限公司 | A kind of pure electric vehicle bi-motor input twin countershaft transmission transmission scheme |
-
2008
- 2008-05-30 CN CNU2008200292565U patent/CN201198893Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453085A (en) * | 2012-06-01 | 2013-12-18 | 赛玛特传动技术(北京)有限公司 | Gear case device |
| CN102734441A (en) * | 2012-06-27 | 2012-10-17 | 中国重汽集团济南动力有限公司 | Novel dual-intermediate shaft gearbox |
| CN109630673A (en) * | 2019-01-31 | 2019-04-16 | 郑州智驱科技有限公司 | A kind of pure electric vehicle bi-motor input twin countershaft transmission transmission scheme |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090225 |