CN103438195A - Input shaft gear structure of heavy type gearbox with double auxiliary shafts - Google Patents
Input shaft gear structure of heavy type gearbox with double auxiliary shafts Download PDFInfo
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- CN103438195A CN103438195A CN2013104176018A CN201310417601A CN103438195A CN 103438195 A CN103438195 A CN 103438195A CN 2013104176018 A CN2013104176018 A CN 2013104176018A CN 201310417601 A CN201310417601 A CN 201310417601A CN 103438195 A CN103438195 A CN 103438195A
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- input shaft
- gear
- helical gear
- hand helical
- countershaft
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Abstract
The invention provides an input shaft gear structure of a heavy type gearbox with double auxiliary shafts. The gear structure comprises an input shaft which is in driving connection with a left auxiliary shaft assembly and a right auxiliary shaft assembly through the transmission of a gear, the two ends of the left auxiliary shaft assembly and the right auxiliary shaft assembly are supported by virtue of bearings, an input shaft left-hand helical gear is installed on the input shaft in a sliding way and is provided with an input shaft right-hand helical gear which is in interference fit with the input shaft left-hand helical gear, elastic retraining rings for shaft are installed on the input shaft and in corresponding fit with two ends of the input shaft left-hand helical gear, and gaps are left between the elastic retaining rings for shaft and the end parts of the input shaft left-hand helical gear; a left auxiliary shaft transmission gear is installed on the left auxiliary shaft assembly and is a right-hand helical gear which is in fit with the input shaft left-hand helical gear, and a right auxiliary shaft transmission gear is installed on the right auxiliary shaft assembly and is a left-hand helical gear which is in fit with the input shaft right-hand helical gear. The gear structure provided by the invention can realize balanced load on the double auxiliary shafts.
Description
Technical field
The present invention relates to the heavy gearbox input shaft gear of a kind of two-pack axle structure, belong to technical field of automobile parts.
Background technique
The heavy gearbox of two-pack axle construction is large because of its bearing capacity, stable drive, and long service life, be widely used in heavy-duty car.At present, the input shaft power dividing of traditional double countershaft gearbox, generally adopt 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 the 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 problem to be solved in the present invention, be exactly for the existing deficiency of prior art, and a kind of heavy gearbox input shaft gear of two-pack axle structure that can realize that the two-pack axle all carries is provided.
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 drives 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, be slidably fitted with the input shaft left-hand helical gear on described input shaft, input shaft dextrorotation helical gear with its interference fit is arranged on the input shaft left-hand helical gear, circlip for shaft with the two ends corresponding matching of input shaft left-hand helical gear is installed on input shaft, leave gap between the end of circlip for shaft and input shaft left-hand helical gear, on left countershaft assembly, left countershaft driver gear is installed, left countershaft driver gear is the dextrorotation helical gear mated with the 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 mated 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 the input shaft left-hand helical gear to endwisely slip along input shaft.
Offer oil groove and oil leab on above-mentioned input shaft, purpose 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, leave gap between the end of circlip for shaft and input shaft left-hand helical gear, and the input shaft left-hand helical gear is slidably mounted on input shaft, axially locating is carried out by the bearing circlip in input shaft left-hand helical gear two ends.When left countershaft driver gear and input shaft left-hand helical gear exist the tooth error, or right countershaft driver gear and input shaft dextrorotation helical gear are while existing the 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 present invention compared with prior art, has outstanding substantive distinguishing features and significant progressive, and the beneficial effect of its enforcement is also apparent.
The accompanying drawing explanation
The structural representation that Fig. 1 is the specific embodiment of the invention.
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, the 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 kind of 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 drives 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 offers oil groove and oil leab on input shaft 1.Input shaft dextrorotation helical gear 5 with its interference fit is arranged on input shaft left-hand helical gear 6, circlip for shaft 8 with the two ends corresponding matching of input shaft left-hand helical gear 6 is installed on input shaft 1, leave gap between the end of circlip for shaft 8 and input shaft left-hand helical gear 6, 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 the 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 that right countershaft assembly 2 and left countershaft assembly 10 all carry.
Can pass through existing techniques in realizing without the technical characteristics of describing in the present invention, not repeat them here.The foregoing is only preferred embodiment of the present invention, the present invention is not limited in above-mentioned embodiment, and the variation that those of ordinary skills make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (5)
1. the heavy gearbox input shaft gear of two-pack axle structure, it comprises input shaft, input shaft drives 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: be slidably fitted with the input shaft left-hand helical gear on described input shaft, input shaft dextrorotation helical gear with its interference fit is arranged on the input shaft left-hand helical gear, circlip for shaft with the two ends corresponding matching of input shaft left-hand helical gear is installed on input shaft, leave gap between the end of circlip for shaft and input shaft left-hand helical gear, on left countershaft assembly, left countershaft driver gear is installed, left countershaft driver gear is the dextrorotation helical gear mated with the 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 mated with input shaft dextrorotation helical gear.
2. the heavy gearbox input shaft gear of two-pack axle according to claim 1 structure, it 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, it is characterized in that: the bearing at described right countershaft assembly two ends is tapered roller bearing.
4. according to claim 1, the heavy gearbox input shaft gear of 2 or 3 described two-pack axles structures, 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: offer oil groove and oil leab on described input shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104176018A CN103438195A (en) | 2013-09-14 | 2013-09-14 | Input shaft gear structure of heavy type gearbox with double auxiliary shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104176018A CN103438195A (en) | 2013-09-14 | 2013-09-14 | Input shaft gear structure of heavy type gearbox with double auxiliary shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103438195A true CN103438195A (en) | 2013-12-11 |
Family
ID=49691897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104176018A Pending CN103438195A (en) | 2013-09-14 | 2013-09-14 | Input shaft gear structure of heavy type gearbox with double auxiliary shafts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103438195A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2044391A (en) * | 1979-03-23 | 1980-10-15 | Reliance Electric Co | Controlled start speed reducer |
| CN101725674A (en) * | 2008-10-24 | 2010-06-09 | 世迈钛传动技术(上海)有限公司 | Gear load distribution device |
| CN201554829U (en) * | 2009-12-15 | 2010-08-18 | 中国重汽集团大同齿轮有限公司 | Ten-gear heavy automobile speed variator |
| CN102187120A (en) * | 2008-10-20 | 2011-09-14 | 赛玛特传动技术有限公司 | Gearbox with load distribution system |
| CN103256343A (en) * | 2011-08-19 | 2013-08-21 | 李建文 | Gear change transmission having axially adjusting countershafts |
| CN203453438U (en) * | 2013-09-14 | 2014-02-26 | 中国重汽集团济南动力有限公司 | Input shaft gear structure of double-countershaft heavy gearbox |
-
2013
- 2013-09-14 CN CN2013104176018A patent/CN103438195A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2044391A (en) * | 1979-03-23 | 1980-10-15 | Reliance Electric Co | Controlled start speed reducer |
| CN102187120A (en) * | 2008-10-20 | 2011-09-14 | 赛玛特传动技术有限公司 | Gearbox with load distribution system |
| CN101725674A (en) * | 2008-10-24 | 2010-06-09 | 世迈钛传动技术(上海)有限公司 | Gear load distribution device |
| CN201554829U (en) * | 2009-12-15 | 2010-08-18 | 中国重汽集团大同齿轮有限公司 | Ten-gear heavy automobile speed variator |
| CN103256343A (en) * | 2011-08-19 | 2013-08-21 | 李建文 | Gear change transmission having axially adjusting countershafts |
| CN203453438U (en) * | 2013-09-14 | 2014-02-26 | 中国重汽集团济南动力有限公司 | Input shaft gear structure of double-countershaft heavy gearbox |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131211 |
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| RJ01 | Rejection of invention patent application after publication |