CN203453438U - Input shaft gear structure of double-countershaft heavy gearbox - Google Patents
Input shaft gear structure of double-countershaft heavy gearbox Download PDFInfo
- Publication number
- CN203453438U CN203453438U CN201320569232.XU CN201320569232U CN203453438U CN 203453438 U CN203453438 U CN 203453438U CN 201320569232 U CN201320569232 U CN 201320569232U CN 203453438 U CN203453438 U CN 203453438U
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- China
- Prior art keywords
- input shaft
- gear
- helical gear
- countershaft
- hand helical
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Abstract
The utility model provides an input shaft gear structure of a double-countershaft heavy gearbox. The input shaft gear structure comprises an input shaft, wherein a left countershaft assembly and a right countershaft assembly are connected with the input shaft through gears in a transmission and driving manner; two ends of each of the left countershaft assembly and the right countershaft assembly are supported through bearings; an input shaft left-hand helical gear is arranged on the input shaft in a sliding manner; an input shaft right-hand helical gear which is in interference fit with the input shaft left-hand helical gear is arranged on the input shaft left-hand helical gear; shaft circlips which are in corresponding fit with two ends of the input shaft left-hand helical gear are arranged on the input shaft; gaps are reserved between the shaft circlips and the end parts of the input shaft left-hand helical gear; a left countershaft transmission gear is arranged on the left countershaft assembly; the left countershaft transmission gear is a right-hand helical gear in fit with the input shaft left-hand helical gear; a right countershaft transmission gear is arranged on the right countershaft assembly; the right countershaft transmission gear is a left-hand helical gear in fit with the input shaft right-hand helical gear. By adopting the gear structure, double-countershaft uniform load can be achieved.
Description
Technical field
The utility model relates to the heavy gearbox input shaft gear of a kind of two-pack axle structure, belongs to technical field of automobile parts.
Background technique
The heavy gearbox of two-pack axle construction because of its bearing capacity large, stable drive, long service life, is widely used in heavy-duty car.At present, the input shaft power dividing of traditional double countershaft gearbox, generally adopts two-pack axle construction, and every countershaft only bears a half-power, all carries in theory.But, in reality due to gear foozle, assembly error and/or to factors such as tooth errors, all carrying on can not realization theory, so in actual use, will cause transmission assembly noise larger, the gear teeth are prone to premature wear and even damage, the existing deficiency of prior art that Here it is.
Summary of the invention
The technical problems to be solved in the utility model, is exactly for the existing deficiency of prior art, and provide a kind of, can realize the heavy gearbox input shaft gear of the two-pack axle structure that two-pack axle all carries.
This programme is achieved by the following technical measures: the heavy gearbox input shaft gear of this two-pack axle structure comprises input shaft, input shaft is driven and is connected with left countershaft assembly and right countershaft assembly by gear transmission, bearings is passed through at the two ends of left countershaft assembly and right countershaft assembly, on described input shaft, be slidably fitted with input shaft left-hand helical gear, on input shaft left-hand helical gear, there is the input shaft dextrorotation helical gear with its interference fit, circlip for shaft with the two ends corresponding matching of input shaft left-hand helical gear is installed on input shaft, between the end of circlip for shaft and input shaft left-hand helical gear, leave gap, on left countershaft assembly, left countershaft driver gear is installed, left countershaft driver gear is the dextrorotation helical gear mating with input shaft left-hand helical gear, on right countershaft assembly, right countershaft driver gear is installed, right countershaft driver gear is the left-hand helical gear mating with input shaft dextrorotation helical gear.
The bearing at above-mentioned left countershaft assembly two ends is tapered roller bearing, by tapered roller bearing, bears the axial force that left countershaft driver gear produces.
The bearing at above-mentioned right countershaft assembly two ends is tapered roller bearing, by tapered roller bearing, bears the axial force that right countershaft driver gear produces.
Being slidably installed as by spline joint of above-mentioned input shaft left-hand helical gear and input shaft, simple in structure, facilitate input shaft left-hand helical gear to endwisely slip along input shaft.
On above-mentioned input shaft, offer oil groove and oil leab, object is the junction plane of lubricated input shaft left-hand helical gear internal spline and input shaft external splines.
The beneficial effect of this programme can be learnt according to the narration to such scheme, in the heavy gearbox input shaft gear of this two-pack axle structure, between the end of circlip for shaft and input shaft left-hand helical gear, leave gap, and input shaft left-hand helical gear is slidably mounted on input shaft, axially locating is carried out by bearing circlip in input shaft left-hand helical gear two ends.When left countershaft driver gear and input shaft left-hand helical gear exist tooth error, or right countershaft driver gear and input shaft dextrorotation helical gear are while existing tooth error, input shaft left-hand helical gear and input shaft dextrorotation helical gear move left and right under the effect of axial force, guarantee that both mesh with left countershaft driver gear and right countershaft driver gear respectively, realize all carrying of left countershaft assembly and right countershaft assembly.As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
In figure, 1-input shaft, the right countershaft assembly of 2-, 3-tapered roller bearing, the right countershaft driver gear of 4-, 5-input shaft dextrorotation helical gear, 6-input shaft left-hand helical gear, 7-input shaft gear, 8-circlip for shaft, the left countershaft driver gear of 9-, the left countershaft assembly of 10-, 11-oil pump.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
The heavy gearbox input shaft gear of a two-pack axle structure, as shown in the figure, it comprises input shaft 1, and input shaft gear 7 is installed on input shaft 1, this input shaft gear 7 comprises input shaft left-hand helical gear 6 and input shaft dextrorotation helical gear 5.Input shaft 1 is driven and is connected with left countershaft assembly 10 and right countershaft assembly 2 by gear transmission, bearings is passed through at the two ends of left countershaft assembly 10 and right countershaft assembly 2, specifically, the bearing at left countershaft assembly 10 and right countershaft assembly 2 two ends is tapered roller bearing 3.
Wherein, input shaft left-hand helical gear 6 is slidably mounted on input shaft 1, and preferred input shaft left-hand helical gear 6 is slidably installed as passing through spline joint with input shaft 1, and on input shaft 1, offers oil groove and oil leab.On input shaft left-hand helical gear 6, there is the input shaft dextrorotation helical gear 5 with its interference fit, circlip for shaft 8 with the two ends corresponding matching of input shaft left-hand helical gear 6 is installed on input shaft 1, between the end of circlip for shaft 8 and input shaft left-hand helical gear 6, leave gap, can guarantee that input shaft left-hand helical gear 6 and input shaft dextrorotation helical gear 5 can, along axially the moving left and right of input shaft 1, can carry out axially locating to both again.
When right countershaft assembly 2 and left countershaft assembly 10 exists tooth error, driving gear pair meshes moment, if right countershaft driver gear 4 and 5 engagements of input shaft dextrorotation helical gear, right countershaft driver gear 4 transmitting torques, left countershaft driver gear 9 does not mesh with input shaft left-hand helical gear 6, left countershaft driver gear 9 is transmitting torque not, now, the axial force that input shaft left-hand helical gear 6 and input shaft dextrorotation helical gear 5 bear to the right, promote input shaft left-hand helical gear 6 and input shaft dextrorotation helical gear 5 moves right on input shaft 1, make input shaft left-hand helical gear 6 and left countershaft driver gear 9 engagements, the axial force that input shaft left-hand helical gear 6 and input shaft dextrorotation helical gear 5 are subject to left, when input shaft left-hand helical gear 6 and input shaft dextrorotation helical gear 5 suffered left sides, during right axial force balance, input shaft left-hand helical gear 6 and input shaft dextrorotation helical gear 5 stop mobile on input shaft 1, right countershaft driver gear 4 and left countershaft driver gear 9 be transmitting torque simultaneously, realize right countershaft assembly 2 and left countershaft assembly 10 all carries.
In the utility model, without the technical characteristics of describing, can pass through existing techniques in realizing, not repeat them here.The foregoing is only preferred embodiment of the present utility model; the utility model is not limited in above-mentioned embodiment; the variation that those of ordinary skills make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.
Claims (5)
1. the heavy gearbox input shaft gear of two-pack axle structure, it comprises input shaft, input shaft is driven and is connected with left countershaft assembly and right countershaft assembly by gear transmission, bearings is passed through at the two ends of left countershaft assembly and right countershaft assembly, it is characterized in that: on described input shaft, be slidably fitted with input shaft left-hand helical gear, on input shaft left-hand helical gear, there is the input shaft dextrorotation helical gear with its interference fit, circlip for shaft with the two ends corresponding matching of input shaft left-hand helical gear is installed on input shaft, between the end of circlip for shaft and input shaft left-hand helical gear, leave gap, on left countershaft assembly, left countershaft driver gear is installed, left countershaft driver gear is the dextrorotation helical gear mating with input shaft left-hand helical gear, on right countershaft assembly, right countershaft driver gear is installed, right countershaft driver gear is the left-hand helical gear mating with input shaft dextrorotation helical gear.
2. the heavy gearbox input shaft gear of two-pack axle according to claim 1 structure, is characterized in that: the bearing at described left countershaft assembly two ends is tapered roller bearing.
3. the heavy gearbox input shaft gear of two-pack axle according to claim 1 structure, is characterized in that: the bearing at described right countershaft assembly two ends is tapered roller bearing.
4. according to the heavy gearbox input shaft gear of two-pack axle described in claim 1,2 or 3 structure, it is characterized in that: being slidably installed as passing through spline joint of described input shaft left-hand helical gear and input shaft.
5. the heavy gearbox input shaft gear of two-pack axle according to claim 4 structure, is characterized in that: on described input shaft, offer oil groove and oil leab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569232.XU CN203453438U (en) | 2013-09-14 | 2013-09-14 | Input shaft gear structure of double-countershaft heavy gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569232.XU CN203453438U (en) | 2013-09-14 | 2013-09-14 | Input shaft gear structure of double-countershaft heavy gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203453438U true CN203453438U (en) | 2014-02-26 |
Family
ID=50133314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320569232.XU Expired - Fee Related CN203453438U (en) | 2013-09-14 | 2013-09-14 | Input shaft gear structure of double-countershaft heavy gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203453438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438195A (en) * | 2013-09-14 | 2013-12-11 | 中国重汽集团济南动力有限公司 | Input shaft gear structure of heavy type gearbox with double auxiliary shafts |
-
2013
- 2013-09-14 CN CN201320569232.XU patent/CN203453438U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438195A (en) * | 2013-09-14 | 2013-12-11 | 中国重汽集团济南动力有限公司 | Input shaft gear structure of heavy type gearbox with double auxiliary shafts |
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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: 20140226 Termination date: 20140914 |
|
| EXPY | Termination of patent right or utility model |