CN202510679U - Intermediate shaft support structure of speed changer - Google Patents
Intermediate shaft support structure of speed changer Download PDFInfo
- Publication number
- CN202510679U CN202510679U CN2012201146045U CN201220114604U CN202510679U CN 202510679 U CN202510679 U CN 202510679U CN 2012201146045 U CN2012201146045 U CN 2012201146045U CN 201220114604 U CN201220114604 U CN 201220114604U CN 202510679 U CN202510679 U CN 202510679U
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- CN
- China
- Prior art keywords
- jack shaft
- bearing
- intermediate shaft
- shaft
- transmission
- 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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Abstract
The utility model provides an intermediate shaft support structure of a speed changer. The intermediate shaft support structure comprises a speed changer shell, a front segment intermediate shaft and a rear segment intermediate shaft. The front segment intermediate shaft and the rear segment intermediate shaft are installed inside the speed changer shell, and a rear end of the front segment intermediate shaft is connected with a front end of the rear segment intermediate shaft in a meshed mode. A front end of the front segment intermediate shaft is supported at a front end of the speed changer shell through a first bearing, and a rear end of the rear segment intermediate shaft is supported on an intermediate-section bearing partition wall of the speed changer shell through a second bearing. A speed changer rear cover shell is installed on a rear side of the speed changer shell. The rear segment intermediate shaft is supported on the speed changer rear cover shell through a third bearing. Through support for an intermediate shaft, deflection of the intermediate shaft is greatly enhanced. The intermediate shaft support structure of the speed changer enables the design of the speed changer to be more optimized and reasonable.
Description
[technical field]
The utility model relates to the speed changer technical field, particularly a kind of transmission countershaft supporting structure.
[background technique]
In the transmission design process, because many gears can cause transmission dimensions long, thereby cause the jack shaft axial dimension longer, amount of deflection is not enough.Jack shaft amount of deflection deficiency can cause pernicious consequences such as the speed changer noise is high, speed changer lost efficacy in advance.At present; The supporting way of both at home and abroad transmission countershaft being taked is two end supports; So need shorten transmission countershaft length in the design as far as possible; Especially for single case production transmissions, receive the jack shaft effect length, design objectives such as the input torque of speed changer and speed ratio also are restricted and influence.
[model utility content]
The purpose of the utility model provides a kind of transmission countershaft supporting structure, with the not enough problem of jack shaft amount of deflection in the transmission design process in the solution existing technology.
To achieve these goals, the utility model adopts following technological scheme:
A kind of transmission countershaft supporting structure comprises case of transmission, leading portion jack shaft and back segment jack shaft; Leading portion jack shaft and back segment jack shaft are installed in the case of transmission, and the front end of the rear end of leading portion jack shaft and back segment jack shaft is connected with a joggle.
The utility model further improves and is: leading portion jack shaft front end is supported on the case of transmission front end through clutch shaft bearing with it, and leading portion jack shaft rear end is supported on it on bearing partition wall of case of transmission middle part through second bearing; The case of transmission rear side is equipped with speed changer bonnet housing; Back segment jack shaft rear end is supported on it on speed changer bonnet housing through the 3rd bearing.
The utility model further improves and is: leading portion jack shaft rear end is provided with internal tooth, and back segment jack shaft front end is provided with external tooth, and said internal tooth is meshed with external tooth.
The utility model further improves and is: the engagement place of the rear end of leading portion jack shaft and back segment jack shaft is supported by second bearing.
The utility model further improves and is: said clutch shaft bearing, second bearing, the 3rd bearing are ball bearing or roller bearing.
The utility model further improves and is: said supporting structure also comprises input shaft and main shaft; Input shaft and main shaft are installed on the case of transmission; Corresponding gear is meshed on gear on leading portion jack shaft and the back segment jack shaft and input shaft and the main shaft.
With respect to existing technology; The utlity model has following advantage: make the jack shaft amount of deflection strengthen greatly through support to jack shaft; Received the influence of jack shaft length and amount of deflection in the transmission design in the past; Design objective such as transmission torque and speed ratio suffers restraints, and the enforcement of the utility model will make transmission design more be tending towards optimizing with rationally.
[description of drawings]
Fig. 1 is the structural representation of the utility model.
[embodiment]
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.
As shown in Figure 1, present embodiment is an example with 7 grades of single case speed changers, includes input shaft 1, input shaft actuation gear, main shaft 2 and seven mainshaft gears in the mission case; Between reverse gear on the main shaft 2 and one grade of gear; Between second gear and the three-range transmission, between fourth gear and five grades, be respectively equipped with sliding sleeve between six grades and seven grades; There are two symmetrical jack shafts and jack shaft driving gear in main shaft 2 both sides; Driving gear and input shaft actuation gear often mesh, and all the other gears of jack shaft and mainshaft gear often mesh, and input shaft 1, main shaft 2 and jack shaft are connected on the mission case.
Transmission countershaft cuts from posterior part and is leading portion jack shaft 4 and back segment jack shaft 7.Leading portion jack shaft 4 front ends are supported on case of transmission 5 front ends through ball bearing or roller bearing 3 with it; Leading portion jack shaft 4 rear ends are supported on them on case of transmission 5 middle part bearing partition walls through ball bearing or roller bearing 6, and leading portion jack shaft 4 rear ends are processed with internal tooth.Back segment jack shaft 7 rear ends are supported on it on speed changer bonnet housing 9 through ball bearing or roller bearing 8; Back segment jack shaft 7 front ends are processed with external tooth; The external tooth of back segment jack shaft 7 front ends is meshed with leading portion jack shaft 4 rear end internal tooths, and back segment jack shaft 7 is supported on the case of transmission 5 middle part partition walls.
Claims (6)
1. a transmission countershaft supporting structure is characterized in that, comprises case of transmission (5), leading portion jack shaft (4) and back segment jack shaft (7); Leading portion jack shaft (4) and back segment jack shaft (7) are installed in the case of transmission (5), and the front end of the rear end of leading portion jack shaft (4) and back segment jack shaft (7) is connected with a joggle.
2. a kind of transmission countershaft supporting structure according to claim 1; It is characterized in that; Leading portion jack shaft (4) front end is supported on case of transmission (5) front end through clutch shaft bearing with it, and leading portion jack shaft (4) rear end is supported on it on bearing partition wall of case of transmission (5) middle part through second bearing; Case of transmission (5) rear side is equipped with speed changer bonnet housing (9); Back segment jack shaft (7) rear end is supported on it on speed changer bonnet housing (9) through the 3rd bearing (8).
3. a kind of transmission countershaft supporting structure according to claim 1 and 2 is characterized in that, leading portion jack shaft (4) rear end is provided with internal tooth, and back segment jack shaft (7) front end is provided with external tooth, and said internal tooth is meshed with external tooth.
4. a kind of transmission countershaft supporting structure according to claim 2 is characterized in that, the engagement place of the rear end of leading portion jack shaft (4) and back segment jack shaft (7) is supported by second bearing.
5. a kind of transmission countershaft supporting structure according to claim 2 is characterized in that said clutch shaft bearing, second bearing, the 3rd bearing are ball bearing or roller bearing.
6. a kind of transmission countershaft supporting structure according to claim 1 is characterized in that, said supporting structure also comprises input shaft (1) and main shaft (2); Input shaft (1) and main shaft (2) are installed on the case of transmission (5); Gear on leading portion jack shaft (4) and the back segment jack shaft (7) is gone up corresponding gear with input shaft (1) and main shaft (2) and is meshed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201146045U CN202510679U (en) | 2012-03-23 | 2012-03-23 | Intermediate shaft support structure of speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201146045U CN202510679U (en) | 2012-03-23 | 2012-03-23 | Intermediate shaft support structure of speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202510679U true CN202510679U (en) | 2012-10-31 |
Family
ID=47063166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201146045U Expired - Lifetime CN202510679U (en) | 2012-03-23 | 2012-03-23 | Intermediate shaft support structure of speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202510679U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421409A (en) * | 2013-09-04 | 2015-03-18 | 本田技研工业株式会社 | Power transmission device for vehicles |
| CN104648118A (en) * | 2013-11-25 | 2015-05-27 | 本田技研工业株式会社 | Power transmission device |
-
2012
- 2012-03-23 CN CN2012201146045U patent/CN202510679U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421409A (en) * | 2013-09-04 | 2015-03-18 | 本田技研工业株式会社 | Power transmission device for vehicles |
| CN104421409B (en) * | 2013-09-04 | 2017-04-12 | 本田技研工业株式会社 | Power transmission device for vehicles |
| CN104648118A (en) * | 2013-11-25 | 2015-05-27 | 本田技研工业株式会社 | Power transmission device |
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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 |
Granted publication date: 20121031 |
|
| CX01 | Expiry of patent term |