CN203431138U - Single-intermediate-shaft transmission structure applied to double-intermediate-shaft transmission structure - Google Patents
Single-intermediate-shaft transmission structure applied to double-intermediate-shaft transmission structure Download PDFInfo
- Publication number
- CN203431138U CN203431138U CN201320548513.7U CN201320548513U CN203431138U CN 203431138 U CN203431138 U CN 203431138U CN 201320548513 U CN201320548513 U CN 201320548513U CN 203431138 U CN203431138 U CN 203431138U
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- output shaft
- gear
- grade
- transmission structure
- shaft gear
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Abstract
The utility model relates to a single-intermediate-shaft transmission structure applied to double-intermediate-shaft transmission structure. Output shaft gears float on output shaft gear spline housings through spline gaps, engaging teeth of the output shaft gears are fixed on the output shaft gear spline housings, the engaging teeth of the output shaft gears and the output shaft gear spline housings form a split structure or an integrated structure, the engaging teeth of the output shaft gears utilize the output shaft gear spline housings to be centered on an output shaft through needle bearings, a normally engaged gear floats on an input shaft through a spline gap, and engaging teeth of the normally engaged gear are centered on the input shaft. By adopting the design that the output shaft gears, the output shaft gear spline housings and the gear-shifting engaging teeth form a split structure, radial floating of the output shaft gears is ensured, meanwhile radial positioning of the gear-shifting engaging teeth and the shafts is ensured, and the problems of double-intermediate-shaft uniform load and the concentricity of the left side and the right side of a synchronizer are solved by utilizing a single-intermediate-shaft transmission structure.
Description
Technical field
The utility model belongs to automobile gearbox technical field, relates to a kind of single countershaft transmission structure applications that is suitable for heavy duty automobile gear box use in twin countershaft transmission structure.
Background technique
Medium-heavy automobile gearbox generally adopts two kinds of technology at present, be the ZF technology of single jack shaft and the EATON technology of two jack shafts, in use respectively have pluses and minuses, intermediate-shaft speed changing box as mono-in Qijiang ZF has good shift property advantage on passenger vehicle, and shortcoming is that bearing capacity is poor; The two intermediate-shaft speed changing boxes of Fa Shite EATON are heavily having the advantage that bearing capacity is strong on card, and its shortcoming is serious synchronizer Problem of Failure.
The normal pair jack shaft speed changes that adopt of gearbox of heavy-duty car, adopt gear radial floating mode to carry out transmission, with what reach size and quality, simplify, guarantee simultaneously output power and transmission efficiency, but because causing synchronizer the right and left decentraction, floating gear make the synchronizer loss situation of heavy duty automobile gear box serious, repair and replacement are frequent, and user is brought to very big inconvenience.
Model utility content
In order to overcome the above-mentioned shortcoming of prior art
,the utility model provides a kind of soldered tooth that guarantees again when guaranteeing output shaft gear radial floating to shift gears to have radial location with axle, utilizes single countershaft transmission structure to make two single countershaft transmission structure applications that jack shaft all carries and synchronizer both sides are concentric in twin countershaft transmission structure.
The utility model solves the technological scheme that its technical problem adopts: a kind of single countershaft transmission structure applications is in twin countershaft transmission structure, there is input shaft, constant mesh gear, the soldered tooth of constant mesh gear, the combination tooth of each grade of output shaft gear, each grade of output shaft gear spline housing, each grade of output shaft gear and output shaft, each grade of output shaft gear floats on each grade of output shaft gear spline housing by spline gap, the combination tooth of each grade of output shaft gear is fixed on each grade of output shaft gear spline housing, the combination tooth of output shaft gear becomes Split type structure or overall structure with each grade of output shaft gear spline housing, the combination tooth of output shaft gear utilizes each grade of output shaft spline housing to be centered on output shaft by needle bearing, constant mesh gear floats on input shaft by spline gap, the soldered tooth of constant mesh gear is centered on input shaft.
Good effect of the present utility model is: by output shaft gear and output shaft gear spline housing, gearshift soldered tooth, adopt Split type structure to design, thereby when guaranteeing output shaft gear radial floating, guarantee again to shift gears soldered tooth and axle have radial location, utilize single countershaft transmission structure to solve two jack shafts and all carry the problem concentric with synchronizer the right and left.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of two middle-shaft full-synchronous automobile speed changers.
In figure: 1-input shaft, 2-constant mesh gear, the soldered tooth of 3-constant mesh gear, each grade of output shaft gear spline housing of 4-, the combination tooth of each grade of output shaft gear of 5-, each grade of output shaft gear of 6-, 7-output shaft.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is further illustrated.
Referring to Fig. 1, a kind of single countershaft transmission structure applications is in twin countershaft transmission structure, there is input shaft 1, constant mesh gear 2, the soldered tooth 3 of constant mesh gear, the combination tooth 5 of each grade of output shaft gear, each grade of output shaft gear spline housing 4, each grade of output shaft gear 6 and output shaft, each grade of output shaft gear 6 floats on each grade of output shaft gear spline housing 4 by spline gap, the combination tooth 5 of each grade of output shaft gear is fixed on each grade of output shaft gear spline housing 4, the combination tooth of output shaft gear and 4 one-tenth Split type structures of each grade of output shaft gear spline housing or overall structure, the combination tooth of output shaft gear utilizes each grade of output shaft spline housing to be centered on output shaft 7 by needle bearing, constant mesh gear 2 floats on input shaft 1 by spline gap, the soldered tooth 3 of constant mesh gear is centered on input shaft 1.
The utility model adopts Split type structure to design by output shaft gear and output shaft gear spline housing, gearshift soldered tooth, thereby when guaranteeing output shaft gear radial floating, guarantee again to shift gears soldered tooth and axle have radial location, utilize single countershaft transmission structure to solve two jack shafts and all carry the problem concentric with synchronizer the right and left.
Claims (1)
1. a single countershaft transmission structure applications is in twin countershaft transmission structure, there is input shaft, constant mesh gear, the soldered tooth of constant mesh gear, the combination tooth of each grade of output shaft gear, each grade of output shaft gear spline housing, each grade of output shaft gear and output shaft, it is characterized in that each grade of output shaft gear floats on each grade of output shaft gear spline housing by spline gap, the combination tooth of each grade of output shaft gear is fixed on each grade of output shaft gear spline housing, the combination tooth of output shaft gear becomes Split type structure or overall structure with each grade of output shaft gear spline housing, the combination tooth of output shaft gear utilizes each grade of output shaft spline housing to be centered on output shaft by needle bearing, constant mesh gear floats on input shaft by spline gap, the soldered tooth of constant mesh gear is centered on input shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320548513.7U CN203431138U (en) | 2013-09-05 | 2013-09-05 | Single-intermediate-shaft transmission structure applied to double-intermediate-shaft transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320548513.7U CN203431138U (en) | 2013-09-05 | 2013-09-05 | Single-intermediate-shaft transmission structure applied to double-intermediate-shaft transmission structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431138U true CN203431138U (en) | 2014-02-12 |
Family
ID=50060176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320548513.7U Expired - Fee Related CN203431138U (en) | 2013-09-05 | 2013-09-05 | Single-intermediate-shaft transmission structure applied to double-intermediate-shaft transmission structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203431138U (en) |
-
2013
- 2013-09-05 CN CN201320548513.7U patent/CN203431138U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20180905 |